diff --git a/.gitignore b/.gitignore new file mode 100755 index 00000000..28f1ba75 --- /dev/null +++ b/.gitignore @@ -0,0 +1,2 @@ +node_modules +.DS_Store \ No newline at end of file diff --git a/README.md b/README.md old mode 100644 new mode 100755 index 71a9296d..22c9762a --- a/README.md +++ b/README.md @@ -1,112 +1,153 @@ -# CIS700 Procedural Graphics: Final Project +# Particle Lyric -Time to show off your new bag of procedural tricks by creating one polished final project. For this assignment you will have four weeks to create and document a portfolio piece that demonstrates your mastery of procedural thinking and implementation. You may work in groups of up to three (working alone is fine too). You may use any language / platform you choose for this assignment (given our approval if it’s not JavaScript/WebGL or C++/OpenGL). +Demo: https://msoudy.github.io/Final-Project/ +- Click on "Play Sample Song" to see the particle system in action. -As usual with this class, we want to encourage you to take this opportunity to explore and experiment. To get you started, however, we’ve provided a few open-ended prompts below. Interesting and complex visuals are the goal in all of these prompts, but they encourage focus on different aspects of proceduralism. +Youtube Demo Video: https://youtu.be/0ajr7b2Dp4o -## Prompts: +Lyric Files: https://syair.info/ -- ### A classic 4k demo - * In the spirit of the demo scene, create an animation that fits into a 4k executable that runs in real-time. Feel free to take inspiration from the many existing demos. Focus on efficiency and elegance in your implementation. - * Examples: [cdak by Quite & orange](https://www.youtube.com/watch?v=RCh3Q08HMfs&list=PLA5E2FF8E143DA58C) +Introduction +---- -- ### A forgery - * Taking inspiration from a particular natural phenomenon or distinctive set of visuals, implement a detailed, procedural recreation of that aesthetic. This includes modeling, texturing and object placement within your scene. Does not need to be real-time. Focus on detail and visual accuracy in your implementation. - * Examples: - - [Snail](https://www.shadertoy.com/view/ld3Gz2), [Journey](https://www.shadertoy.com/view/ldlcRf), Big Hero 6 Wormhole: [Image 1](http://2.bp.blogspot.com/-R-6AN2cWjwg/VTyIzIQSQfI/AAAAAAAABLA/GC0yzzz4wHw/s1600/big-hero-6-disneyscreencaps.com-10092.jpg) , [Image 2](https://i.stack.imgur.com/a9RGL.jpg) +I find it satisfying to watch thousands of particles floating in space and morphing into different shapes. You can almost make a visual representation of anything with a particle system, and watching several examples of particle simulations, like “A Particle Dream” has inspired me to work on a particle simulation. -- ### A game level - * Like generations of game makers before us, create a game which generates an navigable environment (eg. a roguelike dungeon, platforms) and some sort of goal or conflict (eg. enemy agents to avoid or items to collect). Must run in real-time. Aim to create an experience that will challenge players and vary noticeably in different playthroughs, whether that means complex dungeon generation, careful resource management or a sophisticated AI model. Focus on designing a system that will generate complex challenges and goals. - * Examples: Spore, Dwarf Fortress, Minecraft, Rogue +Goal +----- -- ### An animated environment / music visualizer - * Create an environment full of interactive procedural animation. The goal of this project is to create an environment that feels responsive and alive. Whether or not animations are musically-driven, sound should be an important component. Focus on user interactions, motion design and experimental interfaces. - * Examples: [Panoramical](https://www.youtube.com/watch?v=gBTTMNFXHTk), [Bound](https://www.youtube.com/watch?v=aE37l6RvF-c) -- ### Own proposal - * You are of course **welcome to propose your own topic**. Regardless of what you choose, you and your team must research your topic and relevant techniques and come up with a detailed plan of execution. You will meet with some subset of the procedural staff before starting implementation for approval. +Given a LRC file (lyric file) and an MP3 file create a lyric video using particles which can be altered through various GUI parameters, such as mouse position attract/repel forces, and modification of particle attributes, such as color, speed, size and mass. -**Final grading will be individual** and will be based on both the final product and how well you were able to achieve your intended effect according to your execution plan. Plans change of course, and we don’t expect you to follow your execution plan to a T, but if your final project looks pretty good, but you cut corners and only did 30% of what you outlined in your design doc, you will be penalized. -But overall, have fun! This is your opportunity to work on whatever procedural project inspires you. The best way to ensure a good result is to pick something you’re passionate about. :) +Inspiration/reference: +------ -## Timeline +WebGL2 Particles using Transform Feedback - https://pwambach.github.io/webgl2-particles/ +A Particle Dream - v1.0 — https://youtu.be/YB2u2WhZjxU +WebGL FBO Particle System — https://youtu.be/HtF2qWKM_go +GPU Accelerated Particles (Javascript, WebGL) — https://youtu.be/lJe5zEr4b0Q -- 4/08 Design doc due / Have met with procedural staff -- 4/18 Milestone 1 (short write-up + demo) -- 4/25 Milestone 2 (short write-up + demo) -- 5/3 Final presentations (3-5 pm, Siglab), final reports due +Specification +-------------- -## Design Doc +- Particle system on the GPU allowing the simulation of thousands of particles where each particle has the following attributes + - Position + - Velocity + - Acceleration + - Mass + - Target Position (usually position of mesh vertex) + +- Mesh form of the English alphabet including special characters +Each letter is mapped on to a 5x5 2D array of 0 and 1s, where for each cell assigned with 1 a sphere mesh is created. The following diagram illustrates how the letter ‘A’ is mapped to a 2D array. -Your design doc should follow the following template. Note, each section can be pretty short, but cover them all! This will serve as valuable documentation when showing this project off in the future AND doing a good job will make it much easier for you to succeed, so please take this seriously. + ![](./images/grid.png) + +- Lyric file (LRC) parser and mp3 loader + - Parse each line in the lyric file and store the time stamp and corresponding lyric line into a dictionary to be accessible later +- Synchronize played song with lyrics simulated on screen + - Given the current time in the song, the lyric that should be simulated using particles is first fetched from the dictionary generated by the lyric parser and each letter in the lyric is converted into meshes where each particle is assigned to a specific vertex in the mesh -### Design Doc Template: -- #### Introduction - * What motivates this project? -- #### Goal - * What do you intend to achieve with this project? -- #### Inspiration/reference: - * Attach some materials, visual or otherwise you intend as reference -- #### Specification: - * Outline the main features of your project -- #### Techniques: - * What are the main technical/algorithmic tools you’ll be using? Give an overview, citing specific papers/articles -- #### Design: - * How will your program fit together? Make a simple free-body diagram illustrating the pieces. -- #### Timeline: - * Create a week-by-week set of milestones for each person in your group. +Techniques +----------- +The particle simulation is created on the GPU using a process called transform feedback which allows capturing data from the vertex shader and storing it in buffers to be used again in the next iteration. This is required to keep track of the previous attributes of particles such as position, velocity, acceleration and mass. -Along with your final project demo, you will submit a final report, in which you will update correct your original design doc as needed and add a few post-mortem items. +Detailed explanation: -## Milestones +Two shader programs (particles program & draw program) are created; one to perform any calculations for the position, velocity, acceleration and mass of the particles and the other to draw the particles. Before the draw call for the particles program, the rasterizer is disabled since no drawing is required and transform feedback is initiated. After the draw call, transform feedback returns the results from the particles program vertex shader (outPos, outVel, outAcc, outMass) which are stored in buffers. The rasterizer is then re-enabled and the draw program is used to draw the points. Finally, the attribute buffers of the particles shader are swapped with the buffers from transform feedback to be used as input in the next iteration. -To keep you honest / on-track, we will be checking on your progress at weekly intervals, according to milestones you’ll define at the outset (pending our approval). For each of the two milestones prior to the final submission, you will submit a short write up explaining whether or not you individually achieved your goals (specifying the files where the work happened), along with a link to a demo / images. These don’t have to be super polished -- we just want to see that you’re getting things done. +The following references were used to help implement transform feedback: -Example: +- Transform feedback in OpenGL: https://open.gl/feedback +- Transform Feedback simple example: https://www.ibiblio.org/e-notes/webgl/gpu/bounce.htm +- Transform Feedback with particles: https://www.ibiblio.org/e-notes/webgl/gpu/lorenz_ft.htm +- Transform Feedback firework example: https://github.com/WebGLSamples/WebGL2Samples/blob/master/samples/transform_feedback_separated_2.html -“Milestone 1: - Adam: -Made some procedural terrain code in src/terrain.js. Implemented 3D simplex noise to do it. Also applied coloring via custom shader based on this cool paper X (see src/shaders/dirt.glsl). IMAGE +Design +---- -Austin: -I managed to set up my voronoi diagram shader (see src/shaders/voronoi.glsl). -Experimented with different scattering techniques. It’s working with the euclidean distance metric. I’m using it in src/main.js to color stones. IMAGE +![](./images/chart.png) -Rachel: -I tried really hard to make my toon shader work (src/shaders/toon.glsl), but I still have a bug! T_T BUGGY IMAGE. DEMO LINK” -## Final Report +Inspiration/References: +---------------------- +- A Particle Dream - v1.0 — https://youtu.be/YB2u2WhZjxU +- WebGL FBO Particle System — https://youtu.be/HtF2qWKM_go +- GPU Accelerated Particles (Javascript, WebGL) — https://youtu.be/lJe5zEr4b0Q -In addition to your demo, you will create a final report documenting your project overall. This document should be clear enough to explain the value and details of your project to a random computer graphics person with no knowledge of this class. -### Final Report Template: +Timeline: +---- -- #### Updated design doc: - * All the sections of your original design doc, corrected if necessary -- #### Results: - * Provide images of your finished project -- #### Evaluation (this is a big one!): - * How well did you do? What parameters did you tune along the way? Include some WIP shots that compare intermediate results to your final. Explain why you made the decisions you did. -- #### Future work: - * Given more time, what would you add/improve -- #### Acknowledgements: - * Cite _EVERYTHING_. Implemented a paper? Used some royalty-free music? Talked to classmates / a professor in a way that influenced your project? Attribute everything! +- Week 1 - Create Particle Simulation on the GPU +- Week 2 - Move particles to target mesh positions to from mesh shape +- Week 3 - Synchronize song lyrics using particles given an input lyric & music file -## Logistics -Like every prior project, your code will be submitted via github. Fork the empty final project repo and start your code base from there. Take this as an opportunity to practice using git properly in a team setting if you’re a new user. For each weekly submission, provide a link to your pull request. Your repo will contain all the code and documentation associated with your project. The readme for your repo will eventually be your final report. At the top level, include a folder called “documentation”, where you’ll put your design doc and milestone write-ups. +Results: +---- -Don’t wait to merge your code! Seriously, there be dragons. Try to have a working version including all your code so that compatibility and merge issues don’t sneak up on you near the end. +![](./images/results1.png) -## Grading +![](./images/results2.png) -- 15% Design Doc (graded as a group) -- 15% Milestone 1 (graded as a group) -- 15% Milestone 2 (graded as a group) -- 55% Final demo + report (graded individually) +![](./images/results3.png) -NOTE: We’ve been pretty lax about our late policy throughout the semester, but our margins on the final project are tight, therefore late submissions will NOT be accepted. If you have a significant reason for being unable to complete your goals, talk to us, and we’ll discuss getting you an incomplete and figure out an adjusted work plan with your group. +![](./images/results4.png) +Evaluation: +----- +Originally I intended to create a music video with particles by simulating 3d objects which relate to a specific song. However, altering the purpose of my project to be more of a tool for users to use in the future was a better approach. Simulating lyrics synchronized with a song is not only satisfying to watch but can also be useful. Users can use this tool to create lyric videos of their songs to upload on youtube in minutes by screen recording the particle simulation. They can modify the look and feel of the particles by changing the mesh shape of the letters (cube, sphere, torus) and the various parameters of the particles. + +The following image represents the particle simulation I had before. I simulated a walking Doberman. Although, this is appealing, the novelty of the experience wears off and the things you can add to extend the particle simulation is limited compared to simulating music lyrics with particles. Not only do hundreds of new songs come out every day, the amount of features that can be added to help customize the lyrics and the surrounding scene are endless. + +![](./images/doberman.png) + +Changing the project has opened many doors for me. Putting aside all the alterations that can be added to the lyrics themselves, I can include different backgrounds simulated with particles or include a list of general obj’s which can be added by the user at specific times in the song. The list can also be generated based on the word list of the song lyrics. + +Overall, I felt constricted with what I can do by just creating a single enjoyable experience for a specific song. I preferred to create a project that users can come back to; a project I can expand in many different ways and one that would prove to be useful to many people in the future. In the simplest scenario, it can be used during karaoke sessions. + +Future Work: +---- + +Improvements: + +- Rewrite algorithm which aligns the lyric to the center to accomodate for any number of words by automatically resizing font size, and possibly allowing user to change alignment attributes, such as alignment type, line spacing, line max width & height +- Reduce the number of if statements in shader file to improve performance +- Create GUI from scratch to give it a unique look, instead of using dat.GUI library + +Additional features: + +- Playback controls to uploaded song, including fast-forward and rewind +- Integration of Spotify player, so that user doesn't need to upload songs +- Script to automatically fetch lyric file from websites that supply lyric files. This would work well with Spotify as song name and artist can be extracted from Spotify +- Vibrate particles with the beat of the song +- Allow users to change font and font attributes +- Allow simulation recording and download of lyric video +- Add different backgrounds to choose from (could also be simulated with particles) +- Provide users with a list of obj’s to add at specfic times in the song +- Automatically show a list of relevant obj’s based on the word list of the song lyrics +- Support for different languages + + +Acknowledgments: +----- + +- WebGL fundamentals: https://webgl2fundamentals.org/webgl/lessons/webgl-fundamentals.html + +- WebGL resizing canvas: https://webgl2fundamentals.org/webgl/lessons/webgl-resizing-the-canvas.html + +- Transform Feedback simple example: https://www.ibiblio.org/e-notes/webgl/gpu/bounce.htm + +- Transform Feedback with particles: https://www.ibiblio.org/e-notes/webgl/gpu/lorenz_ft.htm + +- WebGL necessary helper functions: https://webgl2fundamentals.org/webgl/lessons/webgl-boilerplate.html + +- Transform feedback in OpenGL: https://open.gl/feedback + +- Transform Feedback firework example: https://github.com/WebGLSamples/WebGL2Samples/blob/master/samples/transform_feedback_separated_2.html + +- Particle Simulation WebGL 2: https://github.com/pwambach/webgl2-particles + +- Agent behaviors: http://natureofcode.com/book/chapter-6-autonomous-agents/ \ No newline at end of file diff --git a/bundle.js b/bundle.js new file mode 100644 index 00000000..2cbf0cfd --- /dev/null +++ b/bundle.js @@ -0,0 +1,23998 @@ +/******/ (function(modules) { // webpackBootstrap +/******/ // The module cache +/******/ var installedModules = {}; +/******/ +/******/ // The require function +/******/ function __webpack_require__(moduleId) { +/******/ +/******/ // Check if module is in cache +/******/ if(installedModules[moduleId]) { +/******/ return installedModules[moduleId].exports; +/******/ } +/******/ // Create a new module (and put it into the cache) +/******/ var module = installedModules[moduleId] = { +/******/ i: moduleId, +/******/ l: false, +/******/ exports: {} +/******/ }; +/******/ +/******/ // Execute the module function +/******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__); +/******/ +/******/ // Flag the module as loaded +/******/ module.l = true; +/******/ +/******/ // Return the exports of the module +/******/ return module.exports; +/******/ } +/******/ +/******/ +/******/ // expose the modules object (__webpack_modules__) +/******/ __webpack_require__.m = modules; +/******/ +/******/ // expose the module cache +/******/ __webpack_require__.c = installedModules; +/******/ +/******/ // identity function for calling harmony imports with the correct context +/******/ __webpack_require__.i = function(value) { return value; }; +/******/ +/******/ // define getter function for harmony exports +/******/ __webpack_require__.d = function(exports, name, getter) { +/******/ if(!__webpack_require__.o(exports, name)) { +/******/ Object.defineProperty(exports, name, { +/******/ configurable: false, +/******/ enumerable: true, +/******/ get: getter +/******/ }); +/******/ } +/******/ }; +/******/ +/******/ // getDefaultExport function for compatibility with non-harmony modules +/******/ __webpack_require__.n = function(module) { +/******/ var getter = module && module.__esModule ? 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global.TYPED_ARRAY_SUPPORT + : typedArraySupport() + +/* + * Export kMaxLength after typed array support is determined. + */ +exports.kMaxLength = kMaxLength() + +function typedArraySupport () { + try { + var arr = new Uint8Array(1) + arr.__proto__ = {__proto__: Uint8Array.prototype, foo: function () { return 42 }} + return arr.foo() === 42 && // typed array instances can be augmented + typeof arr.subarray === 'function' && // chrome 9-10 lack `subarray` + arr.subarray(1, 1).byteLength === 0 // ie10 has broken `subarray` + } catch (e) { + return false + } +} + +function kMaxLength () { + return Buffer.TYPED_ARRAY_SUPPORT + ? 0x7fffffff + : 0x3fffffff +} + +function createBuffer (that, length) { + if (kMaxLength() < length) { + throw new RangeError('Invalid typed array length') + } + if (Buffer.TYPED_ARRAY_SUPPORT) { + // Return an augmented `Uint8Array` instance, for best performance + that = new Uint8Array(length) + that.__proto__ = Buffer.prototype + } else { + // Fallback: Return an object instance of the Buffer class + if (that === null) { + that = new Buffer(length) + } + that.length = length + } + + return that +} + +/** + * The Buffer constructor returns instances of `Uint8Array` that have their + * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of + * `Uint8Array`, so the returned instances will have all the node `Buffer` methods + * and the `Uint8Array` methods. Square bracket notation works as expected -- it + * returns a single octet. + * + * The `Uint8Array` prototype remains unmodified. + */ + +function Buffer (arg, encodingOrOffset, length) { + if (!Buffer.TYPED_ARRAY_SUPPORT && !(this instanceof Buffer)) { + return new Buffer(arg, encodingOrOffset, length) + } + + // Common case. + if (typeof arg === 'number') { + if (typeof encodingOrOffset === 'string') { + throw new Error( + 'If encoding is specified then the first argument must be a string' + ) + } + return allocUnsafe(this, arg) + } + return from(this, arg, encodingOrOffset, length) +} + +Buffer.poolSize = 8192 // not used by this implementation + +// TODO: Legacy, not needed anymore. Remove in next major version. +Buffer._augment = function (arr) { + arr.__proto__ = Buffer.prototype + return arr +} + +function from (that, value, encodingOrOffset, length) { + if (typeof value === 'number') { + throw new TypeError('"value" argument must not be a number') + } + + if (typeof ArrayBuffer !== 'undefined' && value instanceof ArrayBuffer) { + return fromArrayBuffer(that, value, encodingOrOffset, length) + } + + if (typeof value === 'string') { + return fromString(that, value, encodingOrOffset) + } + + return fromObject(that, value) +} + +/** + * Functionally equivalent to Buffer(arg, encoding) but throws a TypeError + * if value is a number. + * Buffer.from(str[, encoding]) + * Buffer.from(array) + * Buffer.from(buffer) + * Buffer.from(arrayBuffer[, byteOffset[, length]]) + **/ +Buffer.from = function (value, encodingOrOffset, length) { + return from(null, value, encodingOrOffset, length) +} + +if (Buffer.TYPED_ARRAY_SUPPORT) { + Buffer.prototype.__proto__ = Uint8Array.prototype + Buffer.__proto__ = Uint8Array + if (typeof Symbol !== 'undefined' && Symbol.species && + Buffer[Symbol.species] === Buffer) { + // Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97 + Object.defineProperty(Buffer, Symbol.species, { + value: null, + configurable: true + }) + } +} + +function assertSize (size) { + if (typeof size !== 'number') { + throw new TypeError('"size" argument must be a number') + } else if (size < 0) { + throw new RangeError('"size" argument must not be negative') + } +} + +function alloc (that, size, fill, encoding) { + assertSize(size) + if (size <= 0) { + return createBuffer(that, size) + } + if (fill !== undefined) { + // Only pay attention to encoding if it's a string. This + // prevents accidentally sending in a number that would + // be interpretted as a start offset. + return typeof encoding === 'string' + ? createBuffer(that, size).fill(fill, encoding) + : createBuffer(that, size).fill(fill) + } + return createBuffer(that, size) +} + +/** + * Creates a new filled Buffer instance. + * alloc(size[, fill[, encoding]]) + **/ +Buffer.alloc = function (size, fill, encoding) { + return alloc(null, size, fill, encoding) +} + +function allocUnsafe (that, size) { + assertSize(size) + that = createBuffer(that, size < 0 ? 0 : checked(size) | 0) + if (!Buffer.TYPED_ARRAY_SUPPORT) { + for (var i = 0; i < size; ++i) { + that[i] = 0 + } + } + return that +} + +/** + * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance. + * */ +Buffer.allocUnsafe = function (size) { + return allocUnsafe(null, size) +} +/** + * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance. + */ +Buffer.allocUnsafeSlow = function (size) { + return allocUnsafe(null, size) +} + +function fromString (that, string, encoding) { + if (typeof encoding !== 'string' || encoding === '') { + encoding = 'utf8' + } + + if (!Buffer.isEncoding(encoding)) { + throw new TypeError('"encoding" must be a valid string encoding') + } + + var length = byteLength(string, encoding) | 0 + that = createBuffer(that, length) + + var actual = that.write(string, encoding) + + if (actual !== length) { + // Writing a hex string, for example, that contains invalid characters will + // cause everything after the first invalid character to be ignored. (e.g. + // 'abxxcd' will be treated as 'ab') + that = that.slice(0, actual) + } + + return that +} + +function fromArrayLike (that, array) { + var length = array.length < 0 ? 0 : checked(array.length) | 0 + that = createBuffer(that, length) + for (var i = 0; i < length; i += 1) { + that[i] = array[i] & 255 + } + return that +} + +function fromArrayBuffer (that, array, byteOffset, length) { + array.byteLength // this throws if `array` is not a valid ArrayBuffer + + if (byteOffset < 0 || array.byteLength < byteOffset) { + throw new RangeError('\'offset\' is out of bounds') + } + + if (array.byteLength < byteOffset + (length || 0)) { + throw new RangeError('\'length\' is out of bounds') + } + + if (byteOffset === undefined && length === undefined) { + array = new Uint8Array(array) + } else if (length === undefined) { + array = new Uint8Array(array, byteOffset) + } else { + array = new Uint8Array(array, byteOffset, length) + } + + if (Buffer.TYPED_ARRAY_SUPPORT) { + // Return an augmented `Uint8Array` instance, for best performance + that = array + that.__proto__ = Buffer.prototype + } else { + // Fallback: Return an object instance of the Buffer class + that = fromArrayLike(that, array) + } + return that +} + +function fromObject (that, obj) { + if (Buffer.isBuffer(obj)) { + var len = checked(obj.length) | 0 + that = createBuffer(that, len) + + if (that.length === 0) { + return that + } + + obj.copy(that, 0, 0, len) + return that + } + + if (obj) { + if ((typeof ArrayBuffer !== 'undefined' && + obj.buffer instanceof ArrayBuffer) || 'length' in obj) { + if (typeof obj.length !== 'number' || isnan(obj.length)) { + return createBuffer(that, 0) + } + return fromArrayLike(that, obj) + } + + if (obj.type === 'Buffer' && isArray(obj.data)) { + return fromArrayLike(that, obj.data) + } + } + + throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.') +} + +function checked (length) { + // Note: cannot use `length < kMaxLength()` here because that fails when + // length is NaN (which is otherwise coerced to zero.) + if (length >= kMaxLength()) { + throw new RangeError('Attempt to allocate Buffer larger than maximum ' + + 'size: 0x' + kMaxLength().toString(16) + ' bytes') + } + return length | 0 +} + +function SlowBuffer (length) { + if (+length != length) { // eslint-disable-line eqeqeq + length = 0 + } + return Buffer.alloc(+length) +} + +Buffer.isBuffer = function isBuffer (b) { + return !!(b != null && b._isBuffer) +} + +Buffer.compare = function compare (a, b) { + if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) { + throw new TypeError('Arguments must be Buffers') + } + + if (a === b) return 0 + + var x = a.length + var y = b.length + + for (var i = 0, len = Math.min(x, y); i < len; ++i) { + if (a[i] !== b[i]) { + x = a[i] + y = b[i] + break + } + } + + if (x < y) return -1 + if (y < x) return 1 + return 0 +} + +Buffer.isEncoding = function isEncoding (encoding) { + switch (String(encoding).toLowerCase()) { + case 'hex': + case 'utf8': + case 'utf-8': + case 'ascii': + case 'latin1': + case 'binary': + case 'base64': + case 'ucs2': + case 'ucs-2': + case 'utf16le': + case 'utf-16le': + return true + default: + return false + } +} + +Buffer.concat = function concat (list, length) { + if (!isArray(list)) { + throw new TypeError('"list" argument must be an Array of Buffers') + } + + if (list.length === 0) { + return Buffer.alloc(0) + } + + var i + if (length === undefined) { + length = 0 + for (i = 0; i < list.length; ++i) { + length += list[i].length + } + } + + var buffer = Buffer.allocUnsafe(length) + var pos = 0 + for (i = 0; i < list.length; ++i) { + var buf = list[i] + if (!Buffer.isBuffer(buf)) { + throw new TypeError('"list" argument must be an Array of Buffers') + } + buf.copy(buffer, pos) + pos += buf.length + } + return buffer +} + +function byteLength (string, encoding) { + if (Buffer.isBuffer(string)) { + return string.length + } + if (typeof ArrayBuffer !== 'undefined' && typeof ArrayBuffer.isView === 'function' && + (ArrayBuffer.isView(string) || string instanceof ArrayBuffer)) { + return string.byteLength + } + if (typeof string !== 'string') { + string = '' + string + } + + var len = string.length + if (len === 0) return 0 + + // Use a for loop to avoid recursion + var loweredCase = false + for (;;) { + switch (encoding) { + case 'ascii': + case 'latin1': + case 'binary': + return len + case 'utf8': + case 'utf-8': + case undefined: + return utf8ToBytes(string).length + case 'ucs2': + case 'ucs-2': + case 'utf16le': + case 'utf-16le': + return len * 2 + case 'hex': + return len >>> 1 + case 'base64': + return base64ToBytes(string).length + default: + if (loweredCase) return utf8ToBytes(string).length // assume utf8 + encoding = ('' + encoding).toLowerCase() + loweredCase = true + } + } +} +Buffer.byteLength = byteLength + +function slowToString (encoding, start, end) { + var loweredCase = false + + // No need to verify that "this.length <= MAX_UINT32" since it's a read-only + // property of a typed array. + + // This behaves neither like String nor Uint8Array in that we set start/end + // to their upper/lower bounds if the value passed is out of range. + // undefined is handled specially as per ECMA-262 6th Edition, + // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization. + if (start === undefined || start < 0) { + start = 0 + } + // Return early if start > this.length. Done here to prevent potential uint32 + // coercion fail below. + if (start > this.length) { + return '' + } + + if (end === undefined || end > this.length) { + end = this.length + } + + if (end <= 0) { + return '' + } + + // Force coersion to uint32. This will also coerce falsey/NaN values to 0. + end >>>= 0 + start >>>= 0 + + if (end <= start) { + return '' + } + + if (!encoding) encoding = 'utf8' + + while (true) { + switch (encoding) { + case 'hex': + return hexSlice(this, start, end) + + case 'utf8': + case 'utf-8': + return utf8Slice(this, start, end) + + case 'ascii': + return asciiSlice(this, start, end) + + case 'latin1': + case 'binary': + return latin1Slice(this, start, end) + + case 'base64': + return base64Slice(this, start, end) + + case 'ucs2': + case 'ucs-2': + case 'utf16le': + case 'utf-16le': + return utf16leSlice(this, start, end) + + default: + if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding) + encoding = (encoding + '').toLowerCase() + loweredCase = true + } + } +} + +// The property is used by `Buffer.isBuffer` and `is-buffer` (in Safari 5-7) to detect +// Buffer instances. +Buffer.prototype._isBuffer = true + +function swap (b, n, m) { + var i = b[n] + b[n] = b[m] + b[m] = i +} + +Buffer.prototype.swap16 = function swap16 () { + var len = this.length + if (len % 2 !== 0) { + throw new RangeError('Buffer size must be a multiple of 16-bits') + } + for (var i = 0; i < len; i += 2) { + swap(this, i, i + 1) + } + return this +} + +Buffer.prototype.swap32 = function swap32 () { + var len = this.length + if (len % 4 !== 0) { + throw new RangeError('Buffer size must be a multiple of 32-bits') + } + for (var i = 0; i < len; i += 4) { + swap(this, i, i + 3) + swap(this, i + 1, i + 2) + } + return this +} + +Buffer.prototype.swap64 = function swap64 () { + var len = this.length + if (len % 8 !== 0) { + throw new RangeError('Buffer size must be a multiple of 64-bits') + } + for (var i = 0; i < len; i += 8) { + swap(this, i, i + 7) + swap(this, i + 1, i + 6) + swap(this, i + 2, i + 5) + swap(this, i + 3, i + 4) + } + return this +} + +Buffer.prototype.toString = function toString () { + var length = this.length | 0 + if (length === 0) return '' + if (arguments.length === 0) return utf8Slice(this, 0, length) + return slowToString.apply(this, arguments) +} + +Buffer.prototype.equals = function equals (b) { + if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer') + if (this === b) return true + return Buffer.compare(this, b) === 0 +} + +Buffer.prototype.inspect = function inspect () { + var str = '' + var max = exports.INSPECT_MAX_BYTES + if (this.length > 0) { + str = this.toString('hex', 0, max).match(/.{2}/g).join(' ') + if (this.length > max) str += ' ... ' + } + return '' +} + +Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) { + if (!Buffer.isBuffer(target)) { + throw new TypeError('Argument must be a Buffer') + } + + if (start === undefined) { + start = 0 + } + if (end === undefined) { + end = target ? target.length : 0 + } + if (thisStart === undefined) { + thisStart = 0 + } + if (thisEnd === undefined) { + thisEnd = this.length + } + + if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) { + throw new RangeError('out of range index') + } + + if (thisStart >= thisEnd && start >= end) { + return 0 + } + if (thisStart >= thisEnd) { + return -1 + } + if (start >= end) { + return 1 + } + + start >>>= 0 + end >>>= 0 + thisStart >>>= 0 + thisEnd >>>= 0 + + if (this === target) return 0 + + var x = thisEnd - thisStart + var y = end - start + var len = Math.min(x, y) + + var thisCopy = this.slice(thisStart, thisEnd) + var targetCopy = target.slice(start, end) + + for (var i = 0; i < len; ++i) { + if (thisCopy[i] !== targetCopy[i]) { + x = thisCopy[i] + y = targetCopy[i] + break + } + } + + if (x < y) return -1 + if (y < x) return 1 + return 0 +} + +// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`, +// OR the last index of `val` in `buffer` at offset <= `byteOffset`. +// +// Arguments: +// - buffer - a Buffer to search +// - val - a string, Buffer, or number +// - byteOffset - an index into `buffer`; will be clamped to an int32 +// - encoding - an optional encoding, relevant is val is a string +// - dir - true for indexOf, false for lastIndexOf +function bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) { + // Empty buffer means no match + if (buffer.length === 0) return -1 + + // Normalize byteOffset + if (typeof byteOffset === 'string') { + encoding = byteOffset + byteOffset = 0 + } else if (byteOffset > 0x7fffffff) { + byteOffset = 0x7fffffff + } else if (byteOffset < -0x80000000) { + byteOffset = -0x80000000 + } + byteOffset = +byteOffset // Coerce to Number. + if (isNaN(byteOffset)) { + // byteOffset: it it's undefined, null, NaN, "foo", etc, search whole buffer + byteOffset = dir ? 0 : (buffer.length - 1) + } + + // Normalize byteOffset: negative offsets start from the end of the buffer + if (byteOffset < 0) byteOffset = buffer.length + byteOffset + if (byteOffset >= buffer.length) { + if (dir) return -1 + else byteOffset = buffer.length - 1 + } else if (byteOffset < 0) { + if (dir) byteOffset = 0 + else return -1 + } + + // Normalize val + if (typeof val === 'string') { + val = Buffer.from(val, encoding) + } + + // Finally, search either indexOf (if dir is true) or lastIndexOf + if (Buffer.isBuffer(val)) { + // Special case: looking for empty string/buffer always fails + if (val.length === 0) { + return -1 + } + return arrayIndexOf(buffer, val, byteOffset, encoding, dir) + } else if (typeof val === 'number') { + val = val & 0xFF // Search for a byte value [0-255] + if (Buffer.TYPED_ARRAY_SUPPORT && + typeof Uint8Array.prototype.indexOf === 'function') { + if (dir) { + return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset) + } else { + return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset) + } + } + return arrayIndexOf(buffer, [ val ], byteOffset, encoding, dir) + } + + throw new TypeError('val must be string, number or Buffer') +} + +function arrayIndexOf (arr, val, byteOffset, encoding, dir) { + var indexSize = 1 + var arrLength = arr.length + var valLength = val.length + + if (encoding !== undefined) { + encoding = String(encoding).toLowerCase() + if (encoding === 'ucs2' || encoding === 'ucs-2' || + encoding === 'utf16le' || encoding === 'utf-16le') { + if (arr.length < 2 || val.length < 2) { + return -1 + } + indexSize = 2 + arrLength /= 2 + valLength /= 2 + byteOffset /= 2 + } + } + + function read (buf, i) { + if (indexSize === 1) { + return buf[i] + } else { + return buf.readUInt16BE(i * indexSize) + } + } + + var i + if (dir) { + var foundIndex = -1 + for (i = byteOffset; i < arrLength; i++) { + if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) { + if (foundIndex === -1) foundIndex = i + if (i - foundIndex + 1 === valLength) return foundIndex * indexSize + } else { + if (foundIndex !== -1) i -= i - foundIndex + foundIndex = -1 + } + } + } else { + if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength + for (i = byteOffset; i >= 0; i--) { + var found = true + for (var j = 0; j < valLength; j++) { + if (read(arr, i + j) !== read(val, j)) { + found = false + break + } + } + if (found) return i + } + } + + return -1 +} + +Buffer.prototype.includes = function includes (val, byteOffset, encoding) { + return this.indexOf(val, byteOffset, encoding) !== -1 +} + +Buffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) { + return bidirectionalIndexOf(this, val, byteOffset, encoding, true) +} + +Buffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) { + return bidirectionalIndexOf(this, val, byteOffset, encoding, false) +} + +function hexWrite (buf, string, offset, length) { + offset = Number(offset) || 0 + var remaining = buf.length - offset + if (!length) { + length = remaining + } else { + length = Number(length) + if (length > remaining) { + length = remaining + } + } + + // must be an even number of digits + var strLen = string.length + if (strLen % 2 !== 0) throw new TypeError('Invalid hex string') + + if (length > strLen / 2) { + length = strLen / 2 + } + for (var i = 0; i < length; ++i) { + var parsed = parseInt(string.substr(i * 2, 2), 16) + if (isNaN(parsed)) return i + buf[offset + i] = parsed + } + return i +} + +function utf8Write (buf, string, offset, length) { + return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length) +} + +function asciiWrite (buf, string, offset, length) { + return blitBuffer(asciiToBytes(string), buf, offset, length) +} + +function latin1Write (buf, string, offset, length) { + return asciiWrite(buf, string, offset, length) +} + +function base64Write (buf, string, offset, length) { + return blitBuffer(base64ToBytes(string), buf, offset, length) +} + +function ucs2Write (buf, string, offset, length) { + return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length) +} + +Buffer.prototype.write = function write (string, offset, length, encoding) { + // Buffer#write(string) + if (offset === undefined) { + encoding = 'utf8' + length = this.length + offset = 0 + // Buffer#write(string, encoding) + } else if (length === undefined && typeof offset === 'string') { + encoding = offset + length = this.length + offset = 0 + // Buffer#write(string, offset[, length][, encoding]) + } else if (isFinite(offset)) { + offset = offset | 0 + if (isFinite(length)) { + length = length | 0 + if (encoding === undefined) encoding = 'utf8' + } else { + encoding = length + length = undefined + } + // legacy write(string, encoding, offset, length) - remove in v0.13 + } else { + throw new Error( + 'Buffer.write(string, encoding, offset[, length]) is no longer supported' + ) + } + + var remaining = this.length - offset + if (length === undefined || length > remaining) length = remaining + + if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) { + throw new RangeError('Attempt to write outside buffer bounds') + } + + if (!encoding) encoding = 'utf8' + + var loweredCase = false + for (;;) { + switch (encoding) { + case 'hex': + return hexWrite(this, string, offset, length) + + case 'utf8': + case 'utf-8': + return utf8Write(this, string, offset, length) + + case 'ascii': + return asciiWrite(this, string, offset, length) + + case 'latin1': + case 'binary': + return latin1Write(this, string, offset, length) + + case 'base64': + // Warning: maxLength not taken into account in base64Write + return base64Write(this, string, offset, length) + + case 'ucs2': + case 'ucs-2': + case 'utf16le': + case 'utf-16le': + return ucs2Write(this, string, offset, length) + + default: + if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding) + encoding = ('' + encoding).toLowerCase() + loweredCase = true + } + } +} + +Buffer.prototype.toJSON = function toJSON () { + return { + type: 'Buffer', + data: Array.prototype.slice.call(this._arr || this, 0) + } +} + +function base64Slice (buf, start, end) { + if (start === 0 && end === buf.length) { + return base64.fromByteArray(buf) + } else { + return base64.fromByteArray(buf.slice(start, end)) + } +} + +function utf8Slice (buf, start, end) { + end = Math.min(buf.length, end) + var res = [] + + var i = start + while (i < end) { + var firstByte = buf[i] + var codePoint = null + var bytesPerSequence = (firstByte > 0xEF) ? 4 + : (firstByte > 0xDF) ? 3 + : (firstByte > 0xBF) ? 2 + : 1 + + if (i + bytesPerSequence <= end) { + var secondByte, thirdByte, fourthByte, tempCodePoint + + switch (bytesPerSequence) { + case 1: + if (firstByte < 0x80) { + codePoint = firstByte + } + break + case 2: + secondByte = buf[i + 1] + if ((secondByte & 0xC0) === 0x80) { + tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F) + if (tempCodePoint > 0x7F) { + codePoint = tempCodePoint + } + } + break + case 3: + secondByte = buf[i + 1] + thirdByte = buf[i + 2] + if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) { + tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F) + if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) { + codePoint = tempCodePoint + } + } + break + case 4: + secondByte = buf[i + 1] + thirdByte = buf[i + 2] + fourthByte = buf[i + 3] + if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) { + tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F) + if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) { + codePoint = tempCodePoint + } + } + } + } + + if (codePoint === null) { + // we did not generate a valid codePoint so insert a + // replacement char (U+FFFD) and advance only 1 byte + codePoint = 0xFFFD + bytesPerSequence = 1 + } else if (codePoint > 0xFFFF) { + // encode to utf16 (surrogate pair dance) + codePoint -= 0x10000 + res.push(codePoint >>> 10 & 0x3FF | 0xD800) + codePoint = 0xDC00 | codePoint & 0x3FF + } + + res.push(codePoint) + i += bytesPerSequence + } + + return decodeCodePointsArray(res) +} + +// Based on http://stackoverflow.com/a/22747272/680742, the browser with +// the lowest limit is Chrome, with 0x10000 args. +// We go 1 magnitude less, for safety +var MAX_ARGUMENTS_LENGTH = 0x1000 + +function decodeCodePointsArray (codePoints) { + var len = codePoints.length + if (len <= MAX_ARGUMENTS_LENGTH) { + return String.fromCharCode.apply(String, codePoints) // avoid extra slice() + } + + // Decode in chunks to avoid "call stack size exceeded". + var res = '' + var i = 0 + while (i < len) { + res += String.fromCharCode.apply( + String, + codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH) + ) + } + return res +} + +function asciiSlice (buf, start, end) { + var ret = '' + end = Math.min(buf.length, end) + + for (var i = start; i < end; ++i) { + ret += String.fromCharCode(buf[i] & 0x7F) + } + return ret +} + +function latin1Slice (buf, start, end) { + var ret = '' + end = Math.min(buf.length, end) + + for (var i = start; i < end; ++i) { + ret += String.fromCharCode(buf[i]) + } + return ret +} + +function hexSlice (buf, start, end) { + var len = buf.length + + if (!start || start < 0) start = 0 + if (!end || end < 0 || end > len) end = len + + var out = '' + for (var i = start; i < end; ++i) { + out += toHex(buf[i]) + } + return out +} + +function utf16leSlice (buf, start, end) { + var bytes = buf.slice(start, end) + var res = '' + for (var i = 0; i < bytes.length; i += 2) { + res += String.fromCharCode(bytes[i] + bytes[i + 1] * 256) + } + return res +} + +Buffer.prototype.slice = function slice (start, end) { + var len = this.length + start = ~~start + end = end === undefined ? len : ~~end + + if (start < 0) { + start += len + if (start < 0) start = 0 + } else if (start > len) { + start = len + } + + if (end < 0) { + end += len + if (end < 0) end = 0 + } else if (end > len) { + end = len + } + + if (end < start) end = start + + var newBuf + if (Buffer.TYPED_ARRAY_SUPPORT) { + newBuf = this.subarray(start, end) + newBuf.__proto__ = Buffer.prototype + } else { + var sliceLen = end - start + newBuf = new Buffer(sliceLen, undefined) + for (var i = 0; i < sliceLen; ++i) { + newBuf[i] = this[i + start] + } + } + + return newBuf +} + +/* + * Need to make sure that buffer isn't trying to write out of bounds. + */ +function checkOffset (offset, ext, length) { + if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint') + if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length') +} + +Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) { + offset = offset | 0 + byteLength = byteLength | 0 + if (!noAssert) checkOffset(offset, byteLength, this.length) + + var val = this[offset] + var mul = 1 + var i = 0 + while (++i < byteLength && (mul *= 0x100)) { + val += this[offset + i] * mul + } + + return val +} + +Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) { + offset = offset | 0 + byteLength = byteLength | 0 + if (!noAssert) { + checkOffset(offset, byteLength, this.length) + } + + var val = this[offset + --byteLength] + var mul = 1 + while (byteLength > 0 && (mul *= 0x100)) { + val += this[offset + --byteLength] * mul + } + + return val +} + +Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) { + if (!noAssert) checkOffset(offset, 1, this.length) + return this[offset] +} + +Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) { + if (!noAssert) checkOffset(offset, 2, this.length) + return this[offset] | (this[offset + 1] << 8) +} + +Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) { + if (!noAssert) checkOffset(offset, 2, this.length) + return (this[offset] << 8) | this[offset + 1] +} + +Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) { + if (!noAssert) checkOffset(offset, 4, this.length) + + return ((this[offset]) | + (this[offset + 1] << 8) | + (this[offset + 2] << 16)) + + (this[offset + 3] * 0x1000000) +} + +Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) { + if (!noAssert) checkOffset(offset, 4, this.length) + + return (this[offset] * 0x1000000) + + ((this[offset + 1] << 16) | + (this[offset + 2] << 8) | + this[offset + 3]) +} + +Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) { + offset = offset | 0 + byteLength = byteLength | 0 + if (!noAssert) checkOffset(offset, byteLength, this.length) + + var val = this[offset] + var mul = 1 + var i = 0 + while (++i < byteLength && (mul *= 0x100)) { + val += this[offset + i] * mul + } + mul *= 0x80 + + if (val >= mul) val -= Math.pow(2, 8 * byteLength) + + return val +} + +Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) { + offset = offset | 0 + byteLength = byteLength | 0 + if (!noAssert) checkOffset(offset, byteLength, this.length) + + var i = byteLength + var mul = 1 + var val = this[offset + --i] + while (i > 0 && (mul *= 0x100)) { + val += this[offset + --i] * mul + } + mul *= 0x80 + + if (val >= mul) val -= Math.pow(2, 8 * byteLength) + + return val +} + +Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) { + if (!noAssert) checkOffset(offset, 1, this.length) + if (!(this[offset] & 0x80)) return (this[offset]) + return ((0xff - this[offset] + 1) * -1) +} + +Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) { + if (!noAssert) checkOffset(offset, 2, this.length) + var val = this[offset] | (this[offset + 1] << 8) + return (val & 0x8000) ? val | 0xFFFF0000 : val +} + +Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) { + if (!noAssert) checkOffset(offset, 2, this.length) + var val = this[offset + 1] | (this[offset] << 8) + return (val & 0x8000) ? val | 0xFFFF0000 : val +} + +Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) { + if (!noAssert) checkOffset(offset, 4, this.length) + + return (this[offset]) | + (this[offset + 1] << 8) | + (this[offset + 2] << 16) | + (this[offset + 3] << 24) +} + +Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) { + if (!noAssert) checkOffset(offset, 4, this.length) + + return (this[offset] << 24) | + (this[offset + 1] << 16) | + (this[offset + 2] << 8) | + (this[offset + 3]) +} + +Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) { + if (!noAssert) checkOffset(offset, 4, this.length) + return ieee754.read(this, offset, true, 23, 4) +} + +Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) { + if (!noAssert) checkOffset(offset, 4, this.length) + return ieee754.read(this, offset, false, 23, 4) +} + +Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) { + if (!noAssert) checkOffset(offset, 8, this.length) + return ieee754.read(this, offset, true, 52, 8) +} + +Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) { + if (!noAssert) checkOffset(offset, 8, this.length) + return ieee754.read(this, offset, false, 52, 8) +} + +function checkInt (buf, value, offset, ext, max, min) { + if (!Buffer.isBuffer(buf)) throw new TypeError('"buffer" argument must be a Buffer instance') + if (value > max || value < min) throw new RangeError('"value" argument is out of bounds') + if (offset + ext > buf.length) throw new RangeError('Index out of range') +} + +Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) { + value = +value + offset = offset | 0 + byteLength = byteLength | 0 + if (!noAssert) { + var maxBytes = Math.pow(2, 8 * byteLength) - 1 + checkInt(this, value, offset, byteLength, maxBytes, 0) + } + + var mul = 1 + var i = 0 + this[offset] = value & 0xFF + while (++i < byteLength && (mul *= 0x100)) { + this[offset + i] = (value / mul) & 0xFF + } + + return offset + byteLength +} + +Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) { + value = +value + offset = offset | 0 + byteLength = byteLength | 0 + if (!noAssert) { + var maxBytes = Math.pow(2, 8 * byteLength) - 1 + checkInt(this, value, offset, byteLength, maxBytes, 0) + } + + var i = byteLength - 1 + var mul = 1 + this[offset + i] = value & 0xFF + while (--i >= 0 && (mul *= 0x100)) { + this[offset + i] = (value / mul) & 0xFF + } + + return offset + byteLength +} + +Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) { + value = +value + offset = offset | 0 + if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0) + if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value) + this[offset] = (value & 0xff) + return offset + 1 +} + +function objectWriteUInt16 (buf, value, offset, littleEndian) { + if (value < 0) value = 0xffff + value + 1 + for (var i = 0, j = Math.min(buf.length - offset, 2); i < j; ++i) { + buf[offset + i] = (value & (0xff << (8 * (littleEndian ? i : 1 - i)))) >>> + (littleEndian ? i : 1 - i) * 8 + } +} + +Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) { + value = +value + offset = offset | 0 + if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0) + if (Buffer.TYPED_ARRAY_SUPPORT) { + this[offset] = (value & 0xff) + this[offset + 1] = (value >>> 8) + } else { + objectWriteUInt16(this, value, offset, true) + } + return offset + 2 +} + +Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) { + value = +value + offset = offset | 0 + if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0) + if (Buffer.TYPED_ARRAY_SUPPORT) { + this[offset] = (value >>> 8) + this[offset + 1] = (value & 0xff) + } else { + objectWriteUInt16(this, value, offset, false) + } + return offset + 2 +} + +function objectWriteUInt32 (buf, value, offset, littleEndian) { + if (value < 0) value = 0xffffffff + value + 1 + for (var i = 0, j = Math.min(buf.length - offset, 4); i < j; ++i) { + buf[offset + i] = (value >>> (littleEndian ? i : 3 - i) * 8) & 0xff + } +} + +Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) { + value = +value + offset = offset | 0 + if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0) + if (Buffer.TYPED_ARRAY_SUPPORT) { + this[offset + 3] = (value >>> 24) + this[offset + 2] = (value >>> 16) + this[offset + 1] = (value >>> 8) + this[offset] = (value & 0xff) + } else { + objectWriteUInt32(this, value, offset, true) + } + return offset + 4 +} + +Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) { + value = +value + offset = offset | 0 + if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0) + if (Buffer.TYPED_ARRAY_SUPPORT) { + this[offset] = (value >>> 24) + this[offset + 1] = (value >>> 16) + this[offset + 2] = (value >>> 8) + this[offset + 3] = (value & 0xff) + } else { + objectWriteUInt32(this, value, offset, false) + } + return offset + 4 +} + +Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) { + value = +value + offset = offset | 0 + if (!noAssert) { + var limit = Math.pow(2, 8 * byteLength - 1) + + checkInt(this, value, offset, byteLength, limit - 1, -limit) + } + + var i = 0 + var mul = 1 + var sub = 0 + this[offset] = value & 0xFF + while (++i < byteLength && (mul *= 0x100)) { + if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) { + sub = 1 + } + this[offset + i] = ((value / mul) >> 0) - sub & 0xFF + } + + return offset + byteLength +} + +Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) { + value = +value + offset = offset | 0 + if (!noAssert) { + var limit = Math.pow(2, 8 * byteLength - 1) + + checkInt(this, value, offset, byteLength, limit - 1, -limit) + } + + var i = byteLength - 1 + var mul = 1 + var sub = 0 + this[offset + i] = value & 0xFF + while (--i >= 0 && (mul *= 0x100)) { + if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) { + sub = 1 + } + this[offset + i] = ((value / mul) >> 0) - sub & 0xFF + } + + return offset + byteLength +} + +Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) { + value = +value + offset = offset | 0 + if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80) + if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value) + if (value < 0) value = 0xff + value + 1 + this[offset] = (value & 0xff) + return offset + 1 +} + +Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) { + value = +value + offset = offset | 0 + if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000) + if (Buffer.TYPED_ARRAY_SUPPORT) { + this[offset] = (value & 0xff) + this[offset + 1] = (value >>> 8) + } else { + objectWriteUInt16(this, value, offset, true) + } + return offset + 2 +} + +Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) { + value = +value + offset = offset | 0 + if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000) + if (Buffer.TYPED_ARRAY_SUPPORT) { + this[offset] = (value >>> 8) + this[offset + 1] = (value & 0xff) + } else { + objectWriteUInt16(this, value, offset, false) + } + return offset + 2 +} + +Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) { + value = +value + offset = offset | 0 + if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000) + if (Buffer.TYPED_ARRAY_SUPPORT) { + this[offset] = (value & 0xff) + this[offset + 1] = (value >>> 8) + this[offset + 2] = (value >>> 16) + this[offset + 3] = (value >>> 24) + } else { + objectWriteUInt32(this, value, offset, true) + } + return offset + 4 +} + +Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) { + value = +value + offset = offset | 0 + if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000) + if (value < 0) value = 0xffffffff + value + 1 + if (Buffer.TYPED_ARRAY_SUPPORT) { + this[offset] = (value >>> 24) + this[offset + 1] = (value >>> 16) + this[offset + 2] = (value >>> 8) + this[offset + 3] = (value & 0xff) + } else { + objectWriteUInt32(this, value, offset, false) + } + return offset + 4 +} + +function checkIEEE754 (buf, value, offset, ext, max, min) { + if (offset + ext > buf.length) throw new RangeError('Index out of range') + if (offset < 0) throw new RangeError('Index out of range') +} + +function writeFloat (buf, value, offset, littleEndian, noAssert) { + if (!noAssert) { + checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38) + } + ieee754.write(buf, value, offset, littleEndian, 23, 4) + return offset + 4 +} + +Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) { + return writeFloat(this, value, offset, true, noAssert) +} + +Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) { + return writeFloat(this, value, offset, false, noAssert) +} + +function writeDouble (buf, value, offset, littleEndian, noAssert) { + if (!noAssert) { + checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308) + } + ieee754.write(buf, value, offset, littleEndian, 52, 8) + return offset + 8 +} + +Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) { + return writeDouble(this, value, offset, true, noAssert) +} + +Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) { + return writeDouble(this, value, offset, false, noAssert) +} + +// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length) +Buffer.prototype.copy = function copy (target, targetStart, start, end) { + if (!start) start = 0 + if (!end && end !== 0) end = this.length + if (targetStart >= target.length) targetStart = target.length + if (!targetStart) targetStart = 0 + if (end > 0 && end < start) end = start + + // Copy 0 bytes; we're done + if (end === start) return 0 + if (target.length === 0 || this.length === 0) return 0 + + // Fatal error conditions + if (targetStart < 0) { + throw new RangeError('targetStart out of bounds') + } + if (start < 0 || start >= this.length) throw new RangeError('sourceStart out of bounds') + if (end < 0) throw new RangeError('sourceEnd out of bounds') + + // Are we oob? + if (end > this.length) end = this.length + if (target.length - targetStart < end - start) { + end = target.length - targetStart + start + } + + var len = end - start + var i + + if (this === target && start < targetStart && targetStart < end) { + // descending copy from end + for (i = len - 1; i >= 0; --i) { + target[i + targetStart] = this[i + start] + } + } else if (len < 1000 || !Buffer.TYPED_ARRAY_SUPPORT) { + // ascending copy from start + for (i = 0; i < len; ++i) { + target[i + targetStart] = this[i + start] + } + } else { + Uint8Array.prototype.set.call( + target, + this.subarray(start, start + len), + targetStart + ) + } + + return len +} + +// Usage: +// buffer.fill(number[, offset[, end]]) +// buffer.fill(buffer[, offset[, end]]) +// buffer.fill(string[, offset[, end]][, encoding]) +Buffer.prototype.fill = function fill (val, start, end, encoding) { + // Handle string cases: + if (typeof val === 'string') { + if (typeof start === 'string') { + encoding = start + start = 0 + end = this.length + } else if (typeof end === 'string') { + encoding = end + end = this.length + } + if (val.length === 1) { + var code = val.charCodeAt(0) + if (code < 256) { + val = code + } + } + if (encoding !== undefined && typeof encoding !== 'string') { + throw new TypeError('encoding must be a string') + } + if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) { + throw new TypeError('Unknown encoding: ' + encoding) + } + } else if (typeof val === 'number') { + val = val & 255 + } + + // Invalid ranges are not set to a default, so can range check early. + if (start < 0 || this.length < start || this.length < end) { + throw new RangeError('Out of range index') + } + + if (end <= start) { + return this + } + + start = start >>> 0 + end = end === undefined ? this.length : end >>> 0 + + if (!val) val = 0 + + var i + if (typeof val === 'number') { + for (i = start; i < end; ++i) { + this[i] = val + } + } else { + var bytes = Buffer.isBuffer(val) + ? val + : utf8ToBytes(new Buffer(val, encoding).toString()) + var len = bytes.length + for (i = 0; i < end - start; ++i) { + this[i + start] = bytes[i % len] + } + } + + return this +} + +// HELPER FUNCTIONS +// ================ + +var INVALID_BASE64_RE = /[^+\/0-9A-Za-z-_]/g + +function base64clean (str) { + // Node strips out invalid characters like \n and \t from the string, base64-js does not + str = stringtrim(str).replace(INVALID_BASE64_RE, '') + // Node converts strings with length < 2 to '' + if (str.length < 2) return '' + // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not + while (str.length % 4 !== 0) { + str = str + '=' + } + return str +} + +function stringtrim (str) { + if (str.trim) return str.trim() + return str.replace(/^\s+|\s+$/g, '') +} + +function toHex (n) { + if (n < 16) return '0' + n.toString(16) + return n.toString(16) +} + +function utf8ToBytes (string, units) { + units = units || Infinity + var codePoint + var length = string.length + var leadSurrogate = null + var bytes = [] + + for (var i = 0; i < length; ++i) { + codePoint = string.charCodeAt(i) + + // is surrogate component + if (codePoint > 0xD7FF && codePoint < 0xE000) { + // last char was a lead + if (!leadSurrogate) { + // no lead yet + if (codePoint > 0xDBFF) { + // unexpected trail + if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) + continue + } else if (i + 1 === length) { + // unpaired lead + if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) + continue + } + + // valid lead + leadSurrogate = codePoint + + continue + } + + // 2 leads in a row + if (codePoint < 0xDC00) { + if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) + leadSurrogate = codePoint + continue + } + + // valid surrogate pair + codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000 + } else if (leadSurrogate) { + // valid bmp char, but last char was a lead + if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) + } + + leadSurrogate = null + + // encode utf8 + if (codePoint < 0x80) { + if ((units -= 1) < 0) break + bytes.push(codePoint) + } else if (codePoint < 0x800) { + if ((units -= 2) < 0) break + bytes.push( + codePoint >> 0x6 | 0xC0, + codePoint & 0x3F | 0x80 + ) + } else if (codePoint < 0x10000) { + if ((units -= 3) < 0) break + bytes.push( + codePoint >> 0xC | 0xE0, + codePoint >> 0x6 & 0x3F | 0x80, + codePoint & 0x3F | 0x80 + ) + } else if (codePoint < 0x110000) { + if ((units -= 4) < 0) break + bytes.push( + codePoint >> 0x12 | 0xF0, + codePoint >> 0xC & 0x3F | 0x80, + codePoint >> 0x6 & 0x3F | 0x80, + codePoint & 0x3F | 0x80 + ) + } else { + throw new Error('Invalid code point') + } + } + + return bytes +} + +function asciiToBytes (str) { + var byteArray = [] + for (var i = 0; i < str.length; ++i) { + // Node's code seems to be doing this and not & 0x7F.. + byteArray.push(str.charCodeAt(i) & 0xFF) + } + return byteArray +} + +function utf16leToBytes (str, units) { + var c, hi, lo + var byteArray = [] + for (var i = 0; i < str.length; ++i) { + if ((units -= 2) < 0) break + + c = str.charCodeAt(i) + hi = c >> 8 + lo = c % 256 + byteArray.push(lo) + byteArray.push(hi) + } + + return byteArray +} + +function base64ToBytes (str) { + return base64.toByteArray(base64clean(str)) +} + +function blitBuffer (src, dst, offset, length) { + for (var i = 0; i < length; ++i) { + if ((i + offset >= dst.length) || (i >= src.length)) break + dst[i + offset] = src[i] + } + return i +} + +function isnan (val) { + return val !== val // eslint-disable-line no-self-compare +} + +/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(3))) + +/***/ }), +/* 2 */ +/***/ (function(module, exports) { + +if (typeof Object.create === 'function') { + // implementation from standard node.js 'util' module + module.exports = function inherits(ctor, superCtor) { + ctor.super_ = superCtor + ctor.prototype = Object.create(superCtor.prototype, { + constructor: { + value: ctor, + enumerable: false, + writable: true, + configurable: true + } + }); + }; +} else { + // old school shim for old browsers + module.exports = function inherits(ctor, superCtor) { + ctor.super_ = superCtor + var TempCtor = function () {} + TempCtor.prototype = superCtor.prototype + ctor.prototype = new TempCtor() + ctor.prototype.constructor = ctor + } +} + + +/***/ }), +/* 3 */ +/***/ (function(module, exports) { + +var g; + +// This works in non-strict mode +g = (function() { + return this; +})(); + +try { + // This works if eval is allowed (see CSP) + g = g || Function("return this")() || (1,eval)("this"); +} catch(e) { + // This works if the window reference is available + if(typeof window === "object") + g = window; +} + +// g can still be undefined, but nothing to do about it... +// We return undefined, instead of nothing here, so it's +// easier to handle this case. if(!global) { ...} + +module.exports = g; + + +/***/ }), +/* 4 */ +/***/ (function(module, exports, __webpack_require__) { + +/* WEBPACK VAR INJECTION */(function(Buffer) {// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +// NOTE: These type checking functions intentionally don't use `instanceof` +// because it is fragile and can be easily faked with `Object.create()`. + +function isArray(arg) { + if (Array.isArray) { + return Array.isArray(arg); + } + return objectToString(arg) === '[object Array]'; +} +exports.isArray = isArray; + +function isBoolean(arg) { + return typeof arg === 'boolean'; +} +exports.isBoolean = isBoolean; + +function isNull(arg) { + return arg === null; +} +exports.isNull = isNull; + +function isNullOrUndefined(arg) { + return arg == null; +} +exports.isNullOrUndefined = isNullOrUndefined; + +function isNumber(arg) { + return typeof arg === 'number'; +} +exports.isNumber = isNumber; + +function isString(arg) { + return typeof arg === 'string'; +} +exports.isString = isString; + +function isSymbol(arg) { + return typeof arg === 'symbol'; +} +exports.isSymbol = isSymbol; + +function isUndefined(arg) { + return arg === void 0; +} +exports.isUndefined = isUndefined; + +function isRegExp(re) { + return objectToString(re) === '[object RegExp]'; +} +exports.isRegExp = isRegExp; + +function isObject(arg) { + return typeof arg === 'object' && arg !== null; +} +exports.isObject = isObject; + +function isDate(d) { + return objectToString(d) === '[object Date]'; +} +exports.isDate = isDate; + +function isError(e) { + return (objectToString(e) === '[object Error]' || e instanceof Error); +} +exports.isError = isError; + +function isFunction(arg) { + return typeof arg === 'function'; +} +exports.isFunction = isFunction; + +function isPrimitive(arg) { + return arg === null || + typeof arg === 'boolean' || + typeof arg === 'number' || + typeof arg === 'string' || + typeof arg === 'symbol' || // ES6 symbol + typeof arg === 'undefined'; +} +exports.isPrimitive = isPrimitive; + +exports.isBuffer = Buffer.isBuffer; + +function objectToString(o) { + return Object.prototype.toString.call(o); +} + +/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(1).Buffer)) + +/***/ }), +/* 5 */ +/***/ (function(module, exports) { + +// shim for using process in browser +var process = module.exports = {}; + +// cached from whatever global is present so that test runners that stub it +// don't break things. But we need to wrap it in a try catch in case it is +// wrapped in strict mode code which doesn't define any globals. It's inside a +// function because try/catches deoptimize in certain engines. + +var cachedSetTimeout; +var cachedClearTimeout; + +function defaultSetTimout() { + throw new Error('setTimeout has not been defined'); +} +function defaultClearTimeout () { + throw new Error('clearTimeout has not been defined'); +} +(function () { + try { + if (typeof setTimeout === 'function') { + cachedSetTimeout = setTimeout; + } else { + cachedSetTimeout = defaultSetTimout; + } + } catch (e) { + cachedSetTimeout = defaultSetTimout; + } + try { + if (typeof clearTimeout === 'function') { + cachedClearTimeout = clearTimeout; + } else { + cachedClearTimeout = defaultClearTimeout; + } + } catch (e) { + cachedClearTimeout = defaultClearTimeout; + } +} ()) +function runTimeout(fun) { + if (cachedSetTimeout === setTimeout) { + //normal enviroments in sane situations + return setTimeout(fun, 0); + } + // if setTimeout wasn't available but was latter defined + if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) { + cachedSetTimeout = setTimeout; + return setTimeout(fun, 0); + } + try { + // when when somebody has screwed with setTimeout but no I.E. maddness + return cachedSetTimeout(fun, 0); + } catch(e){ + try { + // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally + return cachedSetTimeout.call(null, fun, 0); + } catch(e){ + // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error + return cachedSetTimeout.call(this, fun, 0); + } + } + + +} +function runClearTimeout(marker) { + if (cachedClearTimeout === clearTimeout) { + //normal enviroments in sane situations + return clearTimeout(marker); + } + // if clearTimeout wasn't available but was latter defined + if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) { + cachedClearTimeout = clearTimeout; + return clearTimeout(marker); + } + try { + // when when somebody has screwed with setTimeout but no I.E. maddness + return cachedClearTimeout(marker); + } catch (e){ + try { + // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally + return cachedClearTimeout.call(null, marker); + } catch (e){ + // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error. + // Some versions of I.E. have different rules for clearTimeout vs setTimeout + return cachedClearTimeout.call(this, marker); + } + } + + + +} +var queue = []; +var draining = false; +var currentQueue; +var queueIndex = -1; + +function cleanUpNextTick() { + if (!draining || !currentQueue) { + return; + } + draining = false; + if (currentQueue.length) { + queue = currentQueue.concat(queue); + } else { + queueIndex = -1; + } + if (queue.length) { + drainQueue(); + } +} + +function drainQueue() { + if (draining) { + return; + } + var timeout = runTimeout(cleanUpNextTick); + draining = true; + + var len = queue.length; + while(len) { + currentQueue = queue; + queue = []; + while (++queueIndex < len) { + if (currentQueue) { + currentQueue[queueIndex].run(); + } + } + queueIndex = -1; + len = queue.length; + } + currentQueue = null; + draining = false; + runClearTimeout(timeout); +} + +process.nextTick = function (fun) { + var args = new Array(arguments.length - 1); + if (arguments.length > 1) { + for (var i = 1; i < arguments.length; i++) { + args[i - 1] = arguments[i]; + } + } + queue.push(new Item(fun, args)); + if (queue.length === 1 && !draining) { + runTimeout(drainQueue); + } +}; + +// v8 likes predictible objects +function Item(fun, array) { + this.fun = fun; + this.array = array; +} +Item.prototype.run = function () { + this.fun.apply(null, this.array); +}; +process.title = 'browser'; +process.browser = true; +process.env = {}; +process.argv = []; +process.version = ''; // empty string to avoid regexp issues +process.versions = {}; + +function noop() {} + +process.on = noop; +process.addListener = noop; +process.once = noop; +process.off = noop; +process.removeListener = noop; +process.removeAllListeners = noop; +process.emit = noop; +process.prependListener = noop; +process.prependOnceListener = noop; + +process.listeners = function (name) { return [] } + +process.binding = function (name) { + throw new Error('process.binding is not supported'); +}; + +process.cwd = function () { return '/' }; +process.chdir = function (dir) { + throw new Error('process.chdir is not supported'); +}; +process.umask = function() { return 0; }; + + +/***/ }), +/* 6 */ +/***/ (function(module, exports, __webpack_require__) { + +"use strict"; +/* WEBPACK VAR INJECTION */(function(global) { + +var buffer = __webpack_require__(1); +var Buffer = buffer.Buffer; +var SlowBuffer = buffer.SlowBuffer; +var MAX_LEN = buffer.kMaxLength || 2147483647; +exports.alloc = function alloc(size, fill, encoding) { + if (typeof Buffer.alloc === 'function') { + return Buffer.alloc(size, fill, encoding); + } + if (typeof encoding === 'number') { + throw new TypeError('encoding must not be number'); + } + if (typeof size !== 'number') { + throw new TypeError('size must be a number'); + } + if (size > MAX_LEN) { + throw new RangeError('size is too large'); + } + var enc = encoding; + var _fill = fill; + if (_fill === undefined) { + enc = undefined; + _fill = 0; + } + var buf = new Buffer(size); + if (typeof _fill === 'string') { + var fillBuf = new Buffer(_fill, enc); + var flen = fillBuf.length; + var i = -1; + while (++i < size) { + buf[i] = fillBuf[i % flen]; + } + } else { + buf.fill(_fill); + } + return buf; +} +exports.allocUnsafe = function allocUnsafe(size) { + if (typeof Buffer.allocUnsafe === 'function') { + return Buffer.allocUnsafe(size); + } + if (typeof size !== 'number') { + throw new TypeError('size must be a number'); + } + if (size > MAX_LEN) { + throw new RangeError('size is too large'); + } + return new Buffer(size); +} +exports.from = function from(value, encodingOrOffset, length) { + if (typeof Buffer.from === 'function' && (!global.Uint8Array || Uint8Array.from !== Buffer.from)) { + return Buffer.from(value, encodingOrOffset, length); + } + if (typeof value === 'number') { + throw new TypeError('"value" argument must not be a number'); + } + if (typeof value === 'string') { + return new Buffer(value, encodingOrOffset); + } + if (typeof ArrayBuffer !== 'undefined' && value instanceof ArrayBuffer) { + var offset = encodingOrOffset; + if (arguments.length === 1) { + return new Buffer(value); + } + if (typeof offset === 'undefined') { + offset = 0; + } + var len = length; + if (typeof len === 'undefined') { + len = value.byteLength - offset; + } + if (offset >= value.byteLength) { + throw new RangeError('\'offset\' is out of bounds'); + } + if (len > value.byteLength - offset) { + throw new RangeError('\'length\' is out of bounds'); + } + return new Buffer(value.slice(offset, offset + len)); + } + if (Buffer.isBuffer(value)) { + var out = new Buffer(value.length); + value.copy(out, 0, 0, value.length); + return out; + } + if (value) { + if (Array.isArray(value) || (typeof ArrayBuffer !== 'undefined' && value.buffer instanceof ArrayBuffer) || 'length' in value) { + return new Buffer(value); + } + if (value.type === 'Buffer' && Array.isArray(value.data)) { + return new Buffer(value.data); + } + } + + throw new TypeError('First argument must be a string, Buffer, ' + 'ArrayBuffer, Array, or array-like object.'); +} +exports.allocUnsafeSlow = function allocUnsafeSlow(size) { + if (typeof Buffer.allocUnsafeSlow === 'function') { + return Buffer.allocUnsafeSlow(size); + } + if (typeof size !== 'number') { + throw new TypeError('size must be a number'); + } + if (size >= MAX_LEN) { + throw new RangeError('size is too large'); + } + return new SlowBuffer(size); +} + +/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(3))) + +/***/ }), +/* 7 */ +/***/ (function(module, exports) { + +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +function EventEmitter() { + this._events = this._events || {}; + this._maxListeners = this._maxListeners || undefined; +} +module.exports = EventEmitter; + +// Backwards-compat with node 0.10.x +EventEmitter.EventEmitter = EventEmitter; + +EventEmitter.prototype._events = undefined; +EventEmitter.prototype._maxListeners = undefined; + +// By default EventEmitters will print a warning if more than 10 listeners are +// added to it. This is a useful default which helps finding memory leaks. +EventEmitter.defaultMaxListeners = 10; + +// Obviously not all Emitters should be limited to 10. This function allows +// that to be increased. Set to zero for unlimited. +EventEmitter.prototype.setMaxListeners = function(n) { + if (!isNumber(n) || n < 0 || isNaN(n)) + throw TypeError('n must be a positive number'); + this._maxListeners = n; + return this; +}; + +EventEmitter.prototype.emit = function(type) { + var er, handler, len, args, i, listeners; + + if (!this._events) + this._events = {}; + + // If there is no 'error' event listener then throw. + if (type === 'error') { + if (!this._events.error || + (isObject(this._events.error) && !this._events.error.length)) { + er = arguments[1]; + if (er instanceof Error) { + throw er; // Unhandled 'error' event + } else { + // At least give some kind of context to the user + var err = new Error('Uncaught, unspecified "error" event. (' + er + ')'); + err.context = er; + throw err; + } + } + } + + handler = this._events[type]; + + if (isUndefined(handler)) + return false; + + if (isFunction(handler)) { + switch (arguments.length) { + // fast cases + case 1: + handler.call(this); + break; + case 2: + handler.call(this, arguments[1]); + break; + case 3: + handler.call(this, arguments[1], arguments[2]); + break; + // slower + default: + args = Array.prototype.slice.call(arguments, 1); + handler.apply(this, args); + } + } else if (isObject(handler)) { + args = Array.prototype.slice.call(arguments, 1); + listeners = handler.slice(); + len = listeners.length; + for (i = 0; i < len; i++) + listeners[i].apply(this, args); + } + + return true; +}; + +EventEmitter.prototype.addListener = function(type, listener) { + var m; + + if (!isFunction(listener)) + throw TypeError('listener must be a function'); + + if (!this._events) + this._events = {}; + + // To avoid recursion in the case that type === "newListener"! Before + // adding it to the listeners, first emit "newListener". + if (this._events.newListener) + this.emit('newListener', type, + isFunction(listener.listener) ? + listener.listener : listener); + + if (!this._events[type]) + // Optimize the case of one listener. Don't need the extra array object. + this._events[type] = listener; + else if (isObject(this._events[type])) + // If we've already got an array, just append. + this._events[type].push(listener); + else + // Adding the second element, need to change to array. + this._events[type] = [this._events[type], listener]; + + // Check for listener leak + if (isObject(this._events[type]) && !this._events[type].warned) { + if (!isUndefined(this._maxListeners)) { + m = this._maxListeners; + } else { + m = EventEmitter.defaultMaxListeners; + } + + if (m && m > 0 && this._events[type].length > m) { + this._events[type].warned = true; + console.error('(node) warning: possible EventEmitter memory ' + + 'leak detected. %d listeners added. ' + + 'Use emitter.setMaxListeners() to increase limit.', + this._events[type].length); + if (typeof console.trace === 'function') { + // not supported in IE 10 + console.trace(); + } + } + } + + return this; +}; + +EventEmitter.prototype.on = EventEmitter.prototype.addListener; + +EventEmitter.prototype.once = function(type, listener) { + if (!isFunction(listener)) + throw TypeError('listener must be a function'); + + var fired = false; + + function g() { + this.removeListener(type, g); + + if (!fired) { + fired = true; + listener.apply(this, arguments); + } + } + + g.listener = listener; + this.on(type, g); + + return this; +}; + +// emits a 'removeListener' event iff the listener was removed +EventEmitter.prototype.removeListener = function(type, listener) { + var list, position, length, i; + + if (!isFunction(listener)) + throw TypeError('listener must be a function'); + + if (!this._events || !this._events[type]) + return this; + + list = this._events[type]; + length = list.length; + position = -1; + + if (list === listener || + (isFunction(list.listener) && list.listener === listener)) { + delete this._events[type]; + if (this._events.removeListener) + this.emit('removeListener', type, listener); + + } else if (isObject(list)) { + for (i = length; i-- > 0;) { + if (list[i] === listener || + (list[i].listener && list[i].listener === listener)) { + position = i; + break; + } + } + + if (position < 0) + return this; + + if (list.length === 1) { + list.length = 0; + delete this._events[type]; + } else { + list.splice(position, 1); + } + + if (this._events.removeListener) + this.emit('removeListener', type, listener); + } + + return this; +}; + +EventEmitter.prototype.removeAllListeners = function(type) { + var key, listeners; + + if (!this._events) + return this; + + // not listening for removeListener, no need to emit + if (!this._events.removeListener) { + if (arguments.length === 0) + this._events = {}; + else if (this._events[type]) + delete this._events[type]; + return this; + } + + // emit removeListener for all listeners on all events + if (arguments.length === 0) { + for (key in this._events) { + if (key === 'removeListener') continue; + this.removeAllListeners(key); + } + this.removeAllListeners('removeListener'); + this._events = {}; + return this; + } + + listeners = this._events[type]; + + if (isFunction(listeners)) { + this.removeListener(type, listeners); + } else if (listeners) { + // LIFO order + while (listeners.length) + this.removeListener(type, listeners[listeners.length - 1]); + } + delete this._events[type]; + + return this; +}; + +EventEmitter.prototype.listeners = function(type) { + var ret; + if (!this._events || !this._events[type]) + ret = []; + else if (isFunction(this._events[type])) + ret = [this._events[type]]; + else + ret = this._events[type].slice(); + return ret; +}; + +EventEmitter.prototype.listenerCount = function(type) { + if (this._events) { + var evlistener = this._events[type]; + + if (isFunction(evlistener)) + return 1; + else if (evlistener) + return evlistener.length; + } + return 0; +}; + +EventEmitter.listenerCount = function(emitter, type) { + return emitter.listenerCount(type); +}; + +function isFunction(arg) { + return typeof arg === 'function'; +} + +function isNumber(arg) { + return typeof arg === 'number'; +} + +function isObject(arg) { + return typeof arg === 'object' && arg !== null; +} + +function isUndefined(arg) { + return arg === void 0; +} + + +/***/ }), +/* 8 */ +/***/ (function(module, exports, __webpack_require__) { + +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +var Buffer = __webpack_require__(1).Buffer; + +var isBufferEncoding = Buffer.isEncoding + || function(encoding) { + switch (encoding && encoding.toLowerCase()) { + case 'hex': case 'utf8': case 'utf-8': case 'ascii': case 'binary': case 'base64': case 'ucs2': case 'ucs-2': case 'utf16le': case 'utf-16le': case 'raw': return true; + default: return false; + } + } + + +function assertEncoding(encoding) { + if (encoding && !isBufferEncoding(encoding)) { + throw new Error('Unknown encoding: ' + encoding); + } +} + +// StringDecoder provides an interface for efficiently splitting a series of +// buffers into a series of JS strings without breaking apart multi-byte +// characters. CESU-8 is handled as part of the UTF-8 encoding. +// +// @TODO Handling all encodings inside a single object makes it very difficult +// to reason about this code, so it should be split up in the future. +// @TODO There should be a utf8-strict encoding that rejects invalid UTF-8 code +// points as used by CESU-8. +var StringDecoder = exports.StringDecoder = function(encoding) { + this.encoding = (encoding || 'utf8').toLowerCase().replace(/[-_]/, ''); + assertEncoding(encoding); + switch (this.encoding) { + case 'utf8': + // CESU-8 represents each of Surrogate Pair by 3-bytes + this.surrogateSize = 3; + break; + case 'ucs2': + case 'utf16le': + // UTF-16 represents each of Surrogate Pair by 2-bytes + this.surrogateSize = 2; + this.detectIncompleteChar = utf16DetectIncompleteChar; + break; + case 'base64': + // Base-64 stores 3 bytes in 4 chars, and pads the remainder. + this.surrogateSize = 3; + this.detectIncompleteChar = base64DetectIncompleteChar; + break; + default: + this.write = passThroughWrite; + return; + } + + // Enough space to store all bytes of a single character. UTF-8 needs 4 + // bytes, but CESU-8 may require up to 6 (3 bytes per surrogate). + this.charBuffer = new Buffer(6); + // Number of bytes received for the current incomplete multi-byte character. + this.charReceived = 0; + // Number of bytes expected for the current incomplete multi-byte character. + this.charLength = 0; +}; + + +// write decodes the given buffer and returns it as JS string that is +// guaranteed to not contain any partial multi-byte characters. Any partial +// character found at the end of the buffer is buffered up, and will be +// returned when calling write again with the remaining bytes. +// +// Note: Converting a Buffer containing an orphan surrogate to a String +// currently works, but converting a String to a Buffer (via `new Buffer`, or +// Buffer#write) will replace incomplete surrogates with the unicode +// replacement character. See https://codereview.chromium.org/121173009/ . +StringDecoder.prototype.write = function(buffer) { + var charStr = ''; + // if our last write ended with an incomplete multibyte character + while (this.charLength) { + // determine how many remaining bytes this buffer has to offer for this char + var available = (buffer.length >= this.charLength - this.charReceived) ? + this.charLength - this.charReceived : + buffer.length; + + // add the new bytes to the char buffer + buffer.copy(this.charBuffer, this.charReceived, 0, available); + this.charReceived += available; + + if (this.charReceived < this.charLength) { + // still not enough chars in this buffer? wait for more ... + return ''; + } + + // remove bytes belonging to the current character from the buffer + buffer = buffer.slice(available, buffer.length); + + // get the character that was split + charStr = this.charBuffer.slice(0, this.charLength).toString(this.encoding); + + // CESU-8: lead surrogate (D800-DBFF) is also the incomplete character + var charCode = charStr.charCodeAt(charStr.length - 1); + if (charCode >= 0xD800 && charCode <= 0xDBFF) { + this.charLength += this.surrogateSize; + charStr = ''; + continue; + } + this.charReceived = this.charLength = 0; + + // if there are no more bytes in this buffer, just emit our char + if (buffer.length === 0) { + return charStr; + } + break; + } + + // determine and set charLength / charReceived + this.detectIncompleteChar(buffer); + + var end = buffer.length; + if (this.charLength) { + // buffer the incomplete character bytes we got + buffer.copy(this.charBuffer, 0, buffer.length - this.charReceived, end); + end -= this.charReceived; + } + + charStr += buffer.toString(this.encoding, 0, end); + + var end = charStr.length - 1; + var charCode = charStr.charCodeAt(end); + // CESU-8: lead surrogate (D800-DBFF) is also the incomplete character + if (charCode >= 0xD800 && charCode <= 0xDBFF) { + var size = this.surrogateSize; + this.charLength += size; + this.charReceived += size; + this.charBuffer.copy(this.charBuffer, size, 0, size); + buffer.copy(this.charBuffer, 0, 0, size); + return charStr.substring(0, end); + } + + // or just emit the charStr + return charStr; +}; + +// detectIncompleteChar determines if there is an incomplete UTF-8 character at +// the end of the given buffer. If so, it sets this.charLength to the byte +// length that character, and sets this.charReceived to the number of bytes +// that are available for this character. +StringDecoder.prototype.detectIncompleteChar = function(buffer) { + // determine how many bytes we have to check at the end of this buffer + var i = (buffer.length >= 3) ? 3 : buffer.length; + + // Figure out if one of the last i bytes of our buffer announces an + // incomplete char. + for (; i > 0; i--) { + var c = buffer[buffer.length - i]; + + // See http://en.wikipedia.org/wiki/UTF-8#Description + + // 110XXXXX + if (i == 1 && c >> 5 == 0x06) { + this.charLength = 2; + break; + } + + // 1110XXXX + if (i <= 2 && c >> 4 == 0x0E) { + this.charLength = 3; + break; + } + + // 11110XXX + if (i <= 3 && c >> 3 == 0x1E) { + this.charLength = 4; + break; + } + } + this.charReceived = i; +}; + +StringDecoder.prototype.end = function(buffer) { + var res = ''; + if (buffer && buffer.length) + res = this.write(buffer); + + if (this.charReceived) { + var cr = this.charReceived; + var buf = this.charBuffer; + var enc = this.encoding; + res += buf.slice(0, cr).toString(enc); + } + + return res; +}; + +function passThroughWrite(buffer) { + return buffer.toString(this.encoding); +} + +function utf16DetectIncompleteChar(buffer) { + this.charReceived = buffer.length % 2; + this.charLength = this.charReceived ? 2 : 0; +} + +function base64DetectIncompleteChar(buffer) { + this.charReceived = buffer.length % 3; + this.charLength = this.charReceived ? 3 : 0; +} + + +/***/ }), +/* 9 */ +/***/ (function(module, exports, __webpack_require__) { + +"use strict"; +/* WEBPACK VAR INJECTION */(function(process) { + +if (!process.version || + process.version.indexOf('v0.') === 0 || + process.version.indexOf('v1.') === 0 && process.version.indexOf('v1.8.') !== 0) { + module.exports = nextTick; +} else { + module.exports = process.nextTick; +} + +function nextTick(fn, arg1, arg2, arg3) { + if (typeof fn !== 'function') { + throw new TypeError('"callback" argument must be a function'); + } + var len = arguments.length; + var args, i; + switch (len) { + case 0: + case 1: + return process.nextTick(fn); + case 2: + return process.nextTick(function afterTickOne() { + fn.call(null, arg1); + }); + case 3: + return process.nextTick(function afterTickTwo() { + fn.call(null, arg1, arg2); + }); + case 4: + return process.nextTick(function afterTickThree() { + fn.call(null, arg1, arg2, arg3); + }); + default: + args = new Array(len - 1); + i = 0; + while (i < args.length) { + args[i++] = arguments[i]; + } + return process.nextTick(function afterTick() { + fn.apply(null, args); + }); + } +} + +/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(5))) + +/***/ }), +/* 10 */ +/***/ (function(module, exports, __webpack_require__) { + +"use strict"; +/* WEBPACK VAR INJECTION */(function(process, setImmediate) {// A bit simpler than readable streams. +// Implement an async ._write(chunk, encoding, cb), and it'll handle all +// the drain event emission and buffering. + + + +module.exports = Writable; + +/**/ +var processNextTick = __webpack_require__(9); +/**/ + +/**/ +var asyncWrite = !process.browser && ['v0.10', 'v0.9.'].indexOf(process.version.slice(0, 5)) > -1 ? setImmediate : processNextTick; +/**/ + +/**/ +var Duplex; +/**/ + +Writable.WritableState = WritableState; + +/**/ +var util = __webpack_require__(4); +util.inherits = __webpack_require__(2); +/**/ + +/**/ +var internalUtil = { + deprecate: __webpack_require__(59) +}; +/**/ + +/**/ +var Stream = __webpack_require__(20); +/**/ + +var Buffer = __webpack_require__(1).Buffer; +/**/ +var bufferShim = __webpack_require__(6); +/**/ + +util.inherits(Writable, Stream); + +function nop() {} + +function WriteReq(chunk, encoding, cb) { + this.chunk = chunk; + this.encoding = encoding; + this.callback = cb; + this.next = null; +} + +function WritableState(options, stream) { + Duplex = Duplex || __webpack_require__(0); + + options = options || {}; + + // object stream flag to indicate whether or not this stream + // contains buffers or objects. + this.objectMode = !!options.objectMode; + + if (stream instanceof Duplex) this.objectMode = this.objectMode || !!options.writableObjectMode; + + // the point at which write() starts returning false + // Note: 0 is a valid value, means that we always return false if + // the entire buffer is not flushed immediately on write() + var hwm = options.highWaterMark; + var defaultHwm = this.objectMode ? 16 : 16 * 1024; + this.highWaterMark = hwm || hwm === 0 ? hwm : defaultHwm; + + // cast to ints. + this.highWaterMark = ~~this.highWaterMark; + + // drain event flag. + this.needDrain = false; + // at the start of calling end() + this.ending = false; + // when end() has been called, and returned + this.ended = false; + // when 'finish' is emitted + this.finished = false; + + // should we decode strings into buffers before passing to _write? + // this is here so that some node-core streams can optimize string + // handling at a lower level. + var noDecode = options.decodeStrings === false; + this.decodeStrings = !noDecode; + + // Crypto is kind of old and crusty. Historically, its default string + // encoding is 'binary' so we have to make this configurable. + // Everything else in the universe uses 'utf8', though. + this.defaultEncoding = options.defaultEncoding || 'utf8'; + + // not an actual buffer we keep track of, but a measurement + // of how much we're waiting to get pushed to some underlying + // socket or file. + this.length = 0; + + // a flag to see when we're in the middle of a write. + this.writing = false; + + // when true all writes will be buffered until .uncork() call + this.corked = 0; + + // a flag to be able to tell if the onwrite cb is called immediately, + // or on a later tick. We set this to true at first, because any + // actions that shouldn't happen until "later" should generally also + // not happen before the first write call. + this.sync = true; + + // a flag to know if we're processing previously buffered items, which + // may call the _write() callback in the same tick, so that we don't + // end up in an overlapped onwrite situation. + this.bufferProcessing = false; + + // the callback that's passed to _write(chunk,cb) + this.onwrite = function (er) { + onwrite(stream, er); + }; + + // the callback that the user supplies to write(chunk,encoding,cb) + this.writecb = null; + + // the amount that is being written when _write is called. + this.writelen = 0; + + this.bufferedRequest = null; + this.lastBufferedRequest = null; + + // number of pending user-supplied write callbacks + // this must be 0 before 'finish' can be emitted + this.pendingcb = 0; + + // emit prefinish if the only thing we're waiting for is _write cbs + // This is relevant for synchronous Transform streams + this.prefinished = false; + + // True if the error was already emitted and should not be thrown again + this.errorEmitted = false; + + // count buffered requests + this.bufferedRequestCount = 0; + + // allocate the first CorkedRequest, there is always + // one allocated and free to use, and we maintain at most two + this.corkedRequestsFree = new CorkedRequest(this); +} + +WritableState.prototype.getBuffer = function getBuffer() { + var current = this.bufferedRequest; + var out = []; + while (current) { + out.push(current); + current = current.next; + } + return out; +}; + +(function () { + try { + Object.defineProperty(WritableState.prototype, 'buffer', { + get: internalUtil.deprecate(function () { + return this.getBuffer(); + }, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.') + }); + } catch (_) {} +})(); + +// Test _writableState for inheritance to account for Duplex streams, +// whose prototype chain only points to Readable. +var realHasInstance; +if (typeof Symbol === 'function' && Symbol.hasInstance && typeof Function.prototype[Symbol.hasInstance] === 'function') { + realHasInstance = Function.prototype[Symbol.hasInstance]; + Object.defineProperty(Writable, Symbol.hasInstance, { + value: function (object) { + if (realHasInstance.call(this, object)) return true; + + return object && object._writableState instanceof WritableState; + } + }); +} else { + realHasInstance = function (object) { + return object instanceof this; + }; +} + +function Writable(options) { + Duplex = Duplex || __webpack_require__(0); + + // Writable ctor is applied to Duplexes, too. + // `realHasInstance` is necessary because using plain `instanceof` + // would return false, as no `_writableState` property is attached. + + // Trying to use the custom `instanceof` for Writable here will also break the + // Node.js LazyTransform implementation, which has a non-trivial getter for + // `_writableState` that would lead to infinite recursion. + if (!realHasInstance.call(Writable, this) && !(this instanceof Duplex)) { + return new Writable(options); + } + + this._writableState = new WritableState(options, this); + + // legacy. + this.writable = true; + + if (options) { + if (typeof options.write === 'function') this._write = options.write; + + if (typeof options.writev === 'function') this._writev = options.writev; + } + + Stream.call(this); +} + +// Otherwise people can pipe Writable streams, which is just wrong. +Writable.prototype.pipe = function () { + this.emit('error', new Error('Cannot pipe, not readable')); +}; + +function writeAfterEnd(stream, cb) { + var er = new Error('write after end'); + // TODO: defer error events consistently everywhere, not just the cb + stream.emit('error', er); + processNextTick(cb, er); +} + +// Checks that a user-supplied chunk is valid, especially for the particular +// mode the stream is in. Currently this means that `null` is never accepted +// and undefined/non-string values are only allowed in object mode. +function validChunk(stream, state, chunk, cb) { + var valid = true; + var er = false; + + if (chunk === null) { + er = new TypeError('May not write null values to stream'); + } else if (typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) { + er = new TypeError('Invalid non-string/buffer chunk'); + } + if (er) { + stream.emit('error', er); + processNextTick(cb, er); + valid = false; + } + return valid; +} + +Writable.prototype.write = function (chunk, encoding, cb) { + var state = this._writableState; + var ret = false; + var isBuf = Buffer.isBuffer(chunk); + + if (typeof encoding === 'function') { + cb = encoding; + encoding = null; + } + + if (isBuf) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding; + + if (typeof cb !== 'function') cb = nop; + + if (state.ended) writeAfterEnd(this, cb);else if (isBuf || validChunk(this, state, chunk, cb)) { + state.pendingcb++; + ret = writeOrBuffer(this, state, isBuf, chunk, encoding, cb); + } + + return ret; +}; + +Writable.prototype.cork = function () { + var state = this._writableState; + + state.corked++; +}; + +Writable.prototype.uncork = function () { + var state = this._writableState; + + if (state.corked) { + state.corked--; + + if (!state.writing && !state.corked && !state.finished && !state.bufferProcessing && state.bufferedRequest) clearBuffer(this, state); + } +}; + +Writable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) { + // node::ParseEncoding() requires lower case. + if (typeof encoding === 'string') encoding = encoding.toLowerCase(); + if (!(['hex', 'utf8', 'utf-8', 'ascii', 'binary', 'base64', 'ucs2', 'ucs-2', 'utf16le', 'utf-16le', 'raw'].indexOf((encoding + '').toLowerCase()) > -1)) throw new TypeError('Unknown encoding: ' + encoding); + this._writableState.defaultEncoding = encoding; + return this; +}; + +function decodeChunk(state, chunk, encoding) { + if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') { + chunk = bufferShim.from(chunk, encoding); + } + return chunk; +} + +// if we're already writing something, then just put this +// in the queue, and wait our turn. Otherwise, call _write +// If we return false, then we need a drain event, so set that flag. +function writeOrBuffer(stream, state, isBuf, chunk, encoding, cb) { + if (!isBuf) { + chunk = decodeChunk(state, chunk, encoding); + if (Buffer.isBuffer(chunk)) encoding = 'buffer'; + } + var len = state.objectMode ? 1 : chunk.length; + + state.length += len; + + var ret = state.length < state.highWaterMark; + // we must ensure that previous needDrain will not be reset to false. + if (!ret) state.needDrain = true; + + if (state.writing || state.corked) { + var last = state.lastBufferedRequest; + state.lastBufferedRequest = new WriteReq(chunk, encoding, cb); + if (last) { + last.next = state.lastBufferedRequest; + } else { + state.bufferedRequest = state.lastBufferedRequest; + } + state.bufferedRequestCount += 1; + } else { + doWrite(stream, state, false, len, chunk, encoding, cb); + } + + return ret; +} + +function doWrite(stream, state, writev, len, chunk, encoding, cb) { + state.writelen = len; + state.writecb = cb; + state.writing = true; + state.sync = true; + if (writev) stream._writev(chunk, state.onwrite);else stream._write(chunk, encoding, state.onwrite); + state.sync = false; +} + +function onwriteError(stream, state, sync, er, cb) { + --state.pendingcb; + if (sync) processNextTick(cb, er);else cb(er); + + stream._writableState.errorEmitted = true; + stream.emit('error', er); +} + +function onwriteStateUpdate(state) { + state.writing = false; + state.writecb = null; + state.length -= state.writelen; + state.writelen = 0; +} + +function onwrite(stream, er) { + var state = stream._writableState; + var sync = state.sync; + var cb = state.writecb; + + onwriteStateUpdate(state); + + if (er) onwriteError(stream, state, sync, er, cb);else { + // Check if we're actually ready to finish, but don't emit yet + var finished = needFinish(state); + + if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) { + clearBuffer(stream, state); + } + + if (sync) { + /**/ + asyncWrite(afterWrite, stream, state, finished, cb); + /**/ + } else { + afterWrite(stream, state, finished, cb); + } + } +} + +function afterWrite(stream, state, finished, cb) { + if (!finished) onwriteDrain(stream, state); + state.pendingcb--; + cb(); + finishMaybe(stream, state); +} + +// Must force callback to be called on nextTick, so that we don't +// emit 'drain' before the write() consumer gets the 'false' return +// value, and has a chance to attach a 'drain' listener. +function onwriteDrain(stream, state) { + if (state.length === 0 && state.needDrain) { + state.needDrain = false; + stream.emit('drain'); + } +} + +// if there's something in the buffer waiting, then process it +function clearBuffer(stream, state) { + state.bufferProcessing = true; + var entry = state.bufferedRequest; + + if (stream._writev && entry && entry.next) { + // Fast case, write everything using _writev() + var l = state.bufferedRequestCount; + var buffer = new Array(l); + var holder = state.corkedRequestsFree; + holder.entry = entry; + + var count = 0; + while (entry) { + buffer[count] = entry; + entry = entry.next; + count += 1; + } + + doWrite(stream, state, true, state.length, buffer, '', holder.finish); + + // doWrite is almost always async, defer these to save a bit of time + // as the hot path ends with doWrite + state.pendingcb++; + state.lastBufferedRequest = null; + if (holder.next) { + state.corkedRequestsFree = holder.next; + holder.next = null; + } else { + state.corkedRequestsFree = new CorkedRequest(state); + } + } else { + // Slow case, write chunks one-by-one + while (entry) { + var chunk = entry.chunk; + var encoding = entry.encoding; + var cb = entry.callback; + var len = state.objectMode ? 1 : chunk.length; + + doWrite(stream, state, false, len, chunk, encoding, cb); + entry = entry.next; + // if we didn't call the onwrite immediately, then + // it means that we need to wait until it does. + // also, that means that the chunk and cb are currently + // being processed, so move the buffer counter past them. + if (state.writing) { + break; + } + } + + if (entry === null) state.lastBufferedRequest = null; + } + + state.bufferedRequestCount = 0; + state.bufferedRequest = entry; + state.bufferProcessing = false; +} + +Writable.prototype._write = function (chunk, encoding, cb) { + cb(new Error('_write() is not implemented')); +}; + +Writable.prototype._writev = null; + +Writable.prototype.end = function (chunk, encoding, cb) { + var state = this._writableState; + + if (typeof chunk === 'function') { + cb = chunk; + chunk = null; + encoding = null; + } else if (typeof encoding === 'function') { + cb = encoding; + encoding = null; + } + + if (chunk !== null && chunk !== undefined) this.write(chunk, encoding); + + // .end() fully uncorks + if (state.corked) { + state.corked = 1; + this.uncork(); + } + + // ignore unnecessary end() calls. + if (!state.ending && !state.finished) endWritable(this, state, cb); +}; + +function needFinish(state) { + return state.ending && state.length === 0 && state.bufferedRequest === null && !state.finished && !state.writing; +} + +function prefinish(stream, state) { + if (!state.prefinished) { + state.prefinished = true; + stream.emit('prefinish'); + } +} + +function finishMaybe(stream, state) { + var need = needFinish(state); + if (need) { + if (state.pendingcb === 0) { + prefinish(stream, state); + state.finished = true; + stream.emit('finish'); + } else { + prefinish(stream, state); + } + } + return need; +} + +function endWritable(stream, state, cb) { + state.ending = true; + finishMaybe(stream, state); + if (cb) { + if (state.finished) processNextTick(cb);else stream.once('finish', cb); + } + state.ended = true; + stream.writable = false; +} + +// It seems a linked list but it is not +// there will be only 2 of these for each stream +function CorkedRequest(state) { + var _this = this; + + this.next = null; + this.entry = null; + this.finish = function (err) { + var entry = _this.entry; + _this.entry = null; + while (entry) { + var cb = entry.callback; + state.pendingcb--; + cb(err); + entry = entry.next; + } + if (state.corkedRequestsFree) { + state.corkedRequestsFree.next = _this; + } else { + state.corkedRequestsFree = _this; + } + }; +} +/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(5), __webpack_require__(57).setImmediate)) + +/***/ }), +/* 11 */ +/***/ (function(module, exports, __webpack_require__) { + +exports = module.exports = __webpack_require__(18); +exports.Stream = exports; +exports.Readable = exports; +exports.Writable = __webpack_require__(10); +exports.Duplex = __webpack_require__(0); +exports.Transform = __webpack_require__(19); +exports.PassThrough = __webpack_require__(48); + + +/***/ }), +/* 12 */ +/***/ (function(module, exports, __webpack_require__) { + +"use strict"; + + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = Camera; +function Camera(canvas) { + + this.canvas = canvas; + this.model = glm.mat4(); + this.projection = glm.mat4(); + this.view = glm.mat4(); + this.projectionView; + this.look = glm.vec3(0, 0, -1); + this.up = glm.vec3(0, 1, 0); + this.world_up = glm.vec3(0, 1, 0); + this.right = glm.vec3(1, 0, 0); + this.eye = glm.vec3(0, 0, 50); + this.ref = glm.vec3(0, 0, 0); + + this.fovy = 45; + this.aspectRatio = canvas.width / canvas.height; + this.nearClip = 0.1; + this.farClip = 1000; + + this.totalX = 90; + this.totalY = 0; + this.rotationYDir = 1; + this.active = false; +} + +Camera.prototype.reset = function () { + this.model = glm.mat4(); + this.projection = glm.mat4(); + this.view = glm.mat4(); + this.projectionView; + this.look = glm.vec3(0, 0, -1); + this.up = glm.vec3(0, 1, 0); + this.world_up = glm.vec3(0, 1, 0); + this.right = glm.vec3(1, 0, 0); + this.eye = glm.vec3(0, 0, 50); + this.ref = glm.vec3(0, 0, 0); + + this.totalX = 90; + this.totalY = 0; + this.rotationYDir = 1; + this.active = false; +}; + +Camera.prototype.getModel = function () { + return this.model; +}; + +Camera.prototype.getProjection = function () { + return this.projection; +}; + +Camera.prototype.getView = function () { + return this.view; +}; + +Camera.prototype.getViewProj = function () { + + var glmPers = glm.perspective(glm.radians(this.fovy), this.aspectRatio, this.nearClip, this.farClip); + var glmView = glm.lookAt(this.eye, this.ref, this.up); + + return glmPers['*'](glmView); +}; + +Camera.prototype.updateAttributes = function () { + + this.look = glm.normalize(this.ref['-'](this.eye)); + this.right = glm.normalize(glm.cross(this.look, this.world_up)); + this.up = glm.cross(this.right, this.look); +}; + +Camera.prototype.rotateAboutUp = function (upRot) { + + var rotation = glm.rotate(glm.mat4(1.0), glm.radians(-upRot), this.up); + this.eye = glm.vec3(rotation.mul(glm.vec4(this.eye, 1.0))); + this.totalY += upRot; + this.updateAttributes(); +}; + +Camera.prototype.rotateAboutRight = function (rightRot) { + + if (rightRot > 100) return; + + if (this.totalX + rightRot <= 2 || this.totalX + rightRot >= 178) { + return; + } + + var rotation = glm.rotate(glm.mat4(1.0), glm.radians(-rightRot), this.right); + this.eye = glm.vec3(rotation.mul(glm.vec4(this.eye, 1.0))); + this.totalX += rightRot; + this.updateAttributes(); +}; + +Camera.prototype.translateAlongLook = function (trans) { + + var translation = this.eye.mul(trans); + this.eye = this.eye['+'](translation); +}; + +Camera.prototype.translateAlongRight = function (trans) { + + var translation = this.right.mul(trans); + this.eye = this.eye['+'](translation); + this.ref = this.ref['+'](translation); +}; + +Camera.prototype.translateAlongUp = function (trans) { + + var translation = this.up.mul(trans); + this.eye = this.eye['+'](translation); + this.ref = this.ref['+'](translation); +}; + +/***/ }), +/* 13 */ +/***/ (function(module, exports, __webpack_require__) { + +"use strict"; + + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = Controls; +function mouseDown(event, controls) { + controls.drag = 1; + controls.xOffset = event.clientX; + controls.yOffset = event.clientY; + + //debug(event, controls); +} + +function debug(event, controls) { + + var ndcX = (controls.xOffset - canvas.offsetLeft) / canvas.clientWidth * 2 - 1; + var ndcY = (1 - (controls.yOffset - canvas.offsetTop) / canvas.clientHeight) * 2 - 1; + var worldPoint = glm.inverse(controls.camera.getViewProj())['*'](glm.vec4(ndcX, ndcY, 1.0, 1.0))['*'](controls.camera.farClip - 1); + console.log("ndc: [" + ndcX + ", " + ndcY + "]"); + + //worldPoint = worldPoint['/'](worldPoint.w); + console.log("world point :" + worldPoint); + + var dir = controls.camera.eye['-'](glm.vec3(worldPoint.x, worldPoint.y, worldPoint.z)); + dir = glm.normalize(dir); + console.log("Direction: " + dir); + + var point = controls.camera.eye; + + while (Math.abs(point.z) > 2.0 && Math.abs(point.z) < 500.0) { + point = point['-'](dir); + } + + console.log("Point: " + point); + + // var pixelSpace = controls.camera.getViewProj().mul(worldPoint); + // + // console.log("pixel space :" + pixelSpace); +} + +function mouseUp(event, controls) { + controls.drag = 0; +} + +function mouseMove(event, controls) { + if (controls.drag == 0) { + controls.xOffset = event.clientX; + controls.yOffset = event.clientY; + return; + } + + var yRotation = -controls.xOffset + event.clientX; + var xRotation = -controls.yOffset + event.clientY; + + controls.xOffset = event.clientX; + controls.yOffset = event.clientY; + + if (!controls.camera.active) return; + + controls.camera.rotateAboutUp(yRotation); + controls.camera.rotateAboutRight(xRotation); +} + +function scroll(event, controls) { + if (!controls.camera.active) return; + + if ((event.detail || event.wheelDelta) > 0) { + controls.camera.translateAlongLook(0.1); + } else { + controls.camera.translateAlongLook(-0.1); + } + + event.preventDefault(); +} + +function pan(event, controls) { + if (!controls.camera.active) return; + + console.log("pan"); + event = event || window.event; + + if (event.keyCode == '38') { + //up + controls.camera.translateAlongUp(0.1); + } else if (event.keyCode == '40') { + // down + controls.camera.translateAlongUp(-0.1); + } else if (event.keyCode == '37') { + // left + controls.camera.translateAlongRight(-0.1); + } else if (event.keyCode == '39') { + // right + controls.camera.translateAlongRight(0.1); + } +} + +function Controls(canvas, cam) { + + var controls = { + drag: 0, + yRotation: 0, + xRotation: 0, + xOffset: 0, + yOffset: 0, + totalX: 90, + camera: cam + }; + + canvas.setAttribute("tabindex", 0); + canvas.addEventListener('DOMMouseScroll', function (e) { + scroll(e, controls); + }, false); + canvas.addEventListener('mousewheel', function (e) { + scroll(e, controls); + }, false); + canvas.addEventListener('mousedown', function (e) { + mouseDown(e, controls); + }, false); + canvas.addEventListener('mouseup', function (e) { + mouseUp(e, controls); + }, false); + canvas.addEventListener('mousemove', function (e) { + mouseMove(e, controls); + }, false); + // canvas.addEventListener('keydown', function(e) { + // pan(e, controls); + // }); + + return controls; +} + +/***/ }), +/* 14 */ +/***/ (function(module, exports, __webpack_require__) { + +"use strict"; + + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.default = Character; +var Sphere = __webpack_require__(45); +var Cube = __webpack_require__(44); +var Torus = __webpack_require__(46); + +Character.prototype.A = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [0, 1, 1, 1, 0]; + grid[1] = [1, 0, 0, 0, 1]; + grid[2] = [1, 1, 1, 1, 1]; + grid[3] = [1, 0, 0, 0, 1]; + grid[4] = [1, 0, 0, 0, 1]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.B = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [1, 1, 1, 1, 0]; + grid[1] = [1, 0, 0, 0, 1]; + grid[2] = [1, 1, 1, 1, 0]; + grid[3] = [1, 0, 0, 0, 1]; + grid[4] = [1, 1, 1, 1, 0]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.C = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [0, 1, 1, 1, 0]; + grid[1] = [1, 0, 0, 0, 1]; + grid[2] = [1, 0, 0, 0, 0]; + grid[3] = [1, 0, 0, 0, 1]; + grid[4] = [0, 1, 1, 1, 0]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.D = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [1, 1, 1, 1, 0]; + grid[1] = [1, 0, 0, 0, 1]; + grid[2] = [1, 0, 0, 0, 1]; + grid[3] = [1, 0, 0, 0, 1]; + grid[4] = [1, 1, 1, 1, 0]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.E = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [1, 1, 1, 1, 1]; + grid[1] = [1, 0, 0, 0, 0]; + grid[2] = [1, 1, 1, 1, 0]; + grid[3] = [1, 0, 0, 0, 0]; + grid[4] = [1, 1, 1, 1, 1]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.F = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [1, 1, 1, 1, 1]; + grid[1] = [1, 0, 0, 0, 0]; + grid[2] = [1, 1, 1, 1, 0]; + grid[3] = [1, 0, 0, 0, 0]; + grid[4] = [1, 0, 0, 0, 0]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.G = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [0, 1, 1, 1, 0]; + grid[1] = [1, 0, 0, 0, 0]; + grid[2] = [1, 0, 1, 1, 1]; + grid[3] = [1, 0, 0, 0, 1]; + grid[4] = [0, 1, 1, 1, 0]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.H = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [1, 0, 0, 0, 1]; + grid[1] = [1, 0, 0, 0, 1]; + grid[2] = [1, 1, 1, 1, 1]; + grid[3] = [1, 0, 0, 0, 1]; + grid[4] = [1, 0, 0, 0, 1]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.I = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [1, 1, 1, 1, 1]; + grid[1] = [0, 0, 1, 0, 0]; + grid[2] = [0, 0, 1, 0, 0]; + grid[3] = [0, 0, 1, 0, 0]; + grid[4] = [1, 1, 1, 1, 1]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.J = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [0, 0, 0, 1, 1]; + grid[1] = [0, 0, 0, 0, 1]; + grid[2] = [1, 0, 0, 0, 1]; + grid[3] = [1, 0, 0, 0, 1]; + grid[4] = [0, 1, 1, 1, 0]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.K = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [1, 0, 0, 0, 1]; + grid[1] = [1, 0, 0, 1, 0]; + grid[2] = [1, 1, 1, 0, 0]; + grid[3] = [1, 0, 0, 1, 0]; + grid[4] = [1, 0, 0, 0, 1]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.L = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [1, 0, 0, 0, 0]; + grid[1] = [1, 0, 0, 0, 0]; + grid[2] = [1, 0, 0, 0, 0]; + grid[3] = [1, 0, 0, 0, 0]; + grid[4] = [1, 1, 1, 1, 1]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.M = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [1, 0, 0, 0, 1]; + grid[1] = [1, 1, 0, 1, 1]; + grid[2] = [1, 0, 1, 0, 1]; + grid[3] = [1, 0, 0, 0, 1]; + grid[4] = [1, 0, 0, 0, 1]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.N = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [1, 0, 0, 0, 1]; + grid[1] = [1, 1, 0, 0, 1]; + grid[2] = [1, 0, 1, 0, 1]; + grid[3] = [1, 0, 0, 1, 1]; + grid[4] = [1, 0, 0, 0, 1]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.O = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [0, 1, 1, 1, 0]; + grid[1] = [1, 0, 0, 0, 1]; + grid[2] = [1, 0, 0, 0, 1]; + grid[3] = [1, 0, 0, 0, 1]; + grid[4] = [0, 1, 1, 1, 0]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.P = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [1, 1, 1, 1, 0]; + grid[1] = [1, 0, 0, 0, 1]; + grid[2] = [1, 1, 1, 1, 0]; + grid[3] = [1, 0, 0, 0, 0]; + grid[4] = [1, 0, 0, 0, 0]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.Q = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [0, 1, 1, 1, 0]; + grid[1] = [1, 0, 0, 0, 1]; + grid[2] = [1, 0, 0, 0, 1]; + grid[3] = [1, 0, 0, 1, 0]; + grid[4] = [0, 1, 1, 0, 1]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.R = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [1, 1, 1, 1, 0]; + grid[1] = [1, 0, 0, 0, 1]; + grid[2] = [1, 1, 1, 1, 0]; + grid[3] = [1, 0, 0, 0, 1]; + grid[4] = [1, 0, 0, 0, 1]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.S = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [0, 1, 1, 1, 1]; + grid[1] = [1, 0, 0, 0, 0]; + grid[2] = [0, 1, 1, 1, 0]; + grid[3] = [0, 0, 0, 0, 1]; + grid[4] = [1, 1, 1, 1, 0]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.T = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [1, 1, 1, 1, 1]; + grid[1] = [0, 0, 1, 0, 0]; + grid[2] = [0, 0, 1, 0, 0]; + grid[3] = [0, 0, 1, 0, 0]; + grid[4] = [0, 0, 1, 0, 0]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.U = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [1, 0, 0, 0, 1]; + grid[1] = [1, 0, 0, 0, 1]; + grid[2] = [1, 0, 0, 0, 1]; + grid[3] = [1, 0, 0, 0, 1]; + grid[4] = [0, 1, 1, 1, 0]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.V = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [1, 0, 0, 0, 1]; + grid[1] = [1, 0, 0, 0, 1]; + grid[2] = [1, 0, 0, 0, 1]; + grid[3] = [0, 1, 0, 1, 0]; + grid[4] = [0, 0, 1, 0, 0]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.W = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [1, 0, 0, 0, 1]; + grid[1] = [1, 0, 0, 0, 1]; + grid[2] = [1, 0, 1, 0, 1]; + grid[3] = [1, 1, 0, 1, 1]; + grid[4] = [1, 0, 0, 0, 1]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.X = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [1, 0, 0, 0, 1]; + grid[1] = [0, 1, 0, 1, 0]; + grid[2] = [0, 0, 1, 0, 0]; + grid[3] = [0, 1, 0, 1, 0]; + grid[4] = [1, 0, 0, 0, 1]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.Y = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [1, 0, 0, 0, 1]; + grid[1] = [0, 1, 0, 1, 0]; + grid[2] = [0, 0, 1, 0, 0]; + grid[3] = [0, 0, 1, 0, 0]; + grid[4] = [0, 0, 1, 0, 0]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.Z = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [1, 1, 1, 1, 1]; + grid[1] = [0, 0, 0, 1, 0]; + grid[2] = [0, 0, 1, 0, 0]; + grid[3] = [0, 1, 0, 0, 0]; + grid[4] = [1, 1, 1, 1, 1]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.zero = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [0, 1, 1, 1, 0]; + grid[1] = [1, 0, 0, 1, 1]; + grid[2] = [1, 0, 1, 0, 1]; + grid[3] = [1, 1, 0, 0, 1]; + grid[4] = [0, 1, 1, 1, 0]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.one = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [0, 0, 1, 0, 0]; + grid[1] = [0, 1, 1, 0, 0]; + grid[2] = [0, 0, 1, 0, 0]; + grid[3] = [0, 0, 1, 0, 0]; + grid[4] = [0, 1, 1, 1, 0]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.two = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [1, 1, 1, 1, 0]; + grid[1] = [0, 0, 0, 0, 1]; + grid[2] = [0, 1, 1, 1, 0]; + grid[3] = [1, 0, 0, 0, 0]; + grid[4] = [1, 1, 1, 1, 1]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.three = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [1, 1, 1, 1, 0]; + grid[1] = [0, 0, 0, 0, 1]; + grid[2] = [0, 0, 1, 1, 0]; + grid[3] = [0, 0, 0, 0, 1]; + grid[4] = [1, 1, 1, 1, 0]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.four = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [0, 0, 0, 1, 0]; + grid[1] = [0, 0, 1, 1, 0]; + grid[2] = [0, 1, 0, 1, 0]; + grid[3] = [1, 1, 1, 1, 1]; + grid[4] = [0, 0, 0, 1, 0]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.five = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [1, 1, 1, 1, 1]; + grid[1] = [1, 0, 0, 0, 0]; + grid[2] = [1, 1, 1, 1, 0]; + grid[3] = [0, 0, 0, 0, 1]; + grid[4] = [1, 1, 1, 1, 0]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.six = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [0, 1, 1, 1, 1]; + grid[1] = [1, 0, 0, 0, 0]; + grid[2] = [1, 1, 1, 1, 0]; + grid[3] = [1, 0, 0, 0, 1]; + grid[4] = [0, 1, 1, 1, 0]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.seven = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [1, 1, 1, 1, 1]; + grid[1] = [0, 0, 0, 0, 1]; + grid[2] = [0, 0, 0, 1, 0]; + grid[3] = [0, 0, 1, 0, 0]; + grid[4] = [0, 1, 0, 0, 0]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.eight = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [0, 1, 1, 1, 0]; + grid[1] = [1, 0, 0, 0, 1]; + grid[2] = [0, 1, 1, 1, 0]; + grid[3] = [1, 0, 0, 0, 1]; + grid[4] = [0, 1, 1, 1, 0]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.nine = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [0, 1, 1, 1, 0]; + grid[1] = [1, 0, 0, 0, 1]; + grid[2] = [0, 1, 1, 1, 1]; + grid[3] = [0, 0, 0, 0, 1]; + grid[4] = [1, 1, 1, 1, 0]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.apostrophe = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [0, 0, 1, 0, 0]; + grid[1] = [0, 0, 1, 0, 0]; + grid[2] = [0, 1, 0, 0, 0]; + grid[3] = [0, 0, 0, 0, 0]; + grid[4] = [0, 0, 0, 0, 0]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.comma = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [0, 0, 0, 0, 0]; + grid[1] = [0, 0, 0, 0, 0]; + grid[2] = [0, 0, 0, 0, 0]; + grid[3] = [0, 0, 1, 0, 0]; + grid[4] = [0, 1, 0, 0, 0]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.period = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [0, 0, 0, 0, 0]; + grid[1] = [0, 0, 0, 0, 0]; + grid[2] = [0, 0, 0, 0, 0]; + grid[3] = [0, 0, 0, 0, 0]; + grid[4] = [0, 0, 1, 0, 0]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.hyphen = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [0, 0, 0, 0, 0]; + grid[1] = [0, 0, 0, 0, 0]; + grid[2] = [0, 1, 1, 1, 0]; + grid[3] = [0, 0, 0, 0, 0]; + grid[4] = [0, 0, 0, 0, 0]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.ampersand = function (offset) { + + var grid = this.letterGrid; + grid[0] = [0, 1, 1, 0, 0]; + grid[1] = [1, 0, 0, 1, 0]; + grid[2] = [0, 1, 1, 0, 1]; + grid[3] = [1, 0, 0, 1, 0]; + grid[4] = [0, 1, 1, 0, 1]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.doubleQuotation = function (offset) { + + var grid = this.letterGrid; + grid[0] = [0, 1, 0, 1, 0]; + grid[1] = [0, 1, 0, 1, 0]; + grid[2] = [0, 1, 0, 1, 0]; + grid[3] = [0, 0, 0, 0, 0]; + grid[4] = [0, 0, 0, 0, 0]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.leftBracket = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [0, 1, 1, 1, 0]; + grid[1] = [0, 1, 0, 0, 0]; + grid[2] = [0, 1, 0, 0, 0]; + grid[3] = [0, 1, 0, 0, 0]; + grid[4] = [0, 1, 1, 1, 0]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.rightBracket = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [0, 1, 1, 1, 0]; + grid[1] = [0, 0, 0, 1, 0]; + grid[2] = [0, 0, 0, 1, 0]; + grid[3] = [0, 0, 0, 1, 0]; + grid[4] = [0, 1, 1, 1, 0]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.leftParenthesis = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [0, 0, 1, 0, 0]; + grid[1] = [0, 1, 0, 0, 0]; + grid[2] = [0, 1, 0, 0, 0]; + grid[3] = [0, 1, 0, 0, 0]; + grid[4] = [0, 0, 1, 0, 0]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.rightParenthesis = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [0, 0, 1, 0, 0]; + grid[1] = [0, 0, 0, 1, 0]; + grid[2] = [0, 0, 0, 1, 0]; + grid[3] = [0, 0, 0, 1, 0]; + grid[4] = [0, 0, 1, 0, 0]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.colon = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [0, 0, 0, 0, 0]; + grid[1] = [0, 0, 1, 0, 0]; + grid[2] = [0, 0, 0, 0, 0]; + grid[3] = [0, 0, 1, 0, 0]; + grid[4] = [0, 0, 0, 0, 0]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.semiColon = function (offset) { + + var grid = this.letterGrid; + + grid[0] = [0, 0, 0, 0, 0]; + grid[1] = [0, 0, 1, 0, 0]; + grid[2] = [0, 0, 0, 0, 0]; + grid[3] = [0, 0, 1, 0, 0]; + grid[4] = [0, 1, 0, 0, 0]; + + return this.replaceActiveGridPointsWithMesh(offset); +}; + +Character.prototype.replaceActiveGridPointsWithMesh = function (offset) { + + var grid = this.letterGrid; + var allVertices = []; + + for (var x = 0; x < grid.length; x++) { + for (var y = 0; y < grid[x].length; y++) { + + var cell = grid[y][x]; + + if (cell) { + + var pos = glm.vec3(x * this.dotSpacing, (grid[x].length - y) * this.dotSpacing, 0)['+'](offset); + + var mesh; + + if (this.meshType == 1) { + mesh = Sphere(this.meshSize, { segments: 3 }); + } else if (this.meshType == 2) { + mesh = Cube(this.meshSize, this.meshSize, this.meshSize, 2, 2, 2); + } else if (this.meshType == 3) { + mesh = Torus({ + majorRadius: this.meshSize / 2, + minorRadius: this.meshSize / 4, + majorSegments: 8, + minorSegments: 4 + }); + } + + for (var m = 0; m < mesh.positions.length; m++) { + + var vert = mesh.positions[m]; + allVertices.push(glm.vec4(vert[0] + pos[0], vert[1] + pos[1], vert[2] + pos[2], 1.0)); + } + } + } + } + + return allVertices; +}; + +function Character() { + + this.meshType = 1; + this.meshSize = 0.2; + this.gridWidth = 5.0; + this.dotSpacing = 0.5; + this.letterHeight = this.dotSpacing * this.gridWidth; + this.letterWidth = this.dotSpacing * this.gridWidth; + this.letterGrid = []; +} + +/***/ }), +/* 15 */ +/***/ (function(module, exports) { + +module.exports = normalize; + +/** + * Normalize a vec3 + * + * @param {vec3} out the receiving vector + * @param {vec3} a vector to normalize + * @returns {vec3} out + */ +function normalize(out, a) { + var x = a[0], + y = a[1], + z = a[2] + var len = x*x + y*y + z*z + if (len > 0) { + //TODO: evaluate use of glm_invsqrt here? + len = 1 / Math.sqrt(len) + out[0] = a[0] * len + out[1] = a[1] * len + out[2] = a[2] * len + } + return out +} + +/***/ }), +/* 16 */ +/***/ (function(module, exports) { + +module.exports = isFunction + +var toString = Object.prototype.toString + +function isFunction (fn) { + var string = toString.call(fn) + return string === '[object Function]' || + (typeof fn === 'function' && string !== '[object RegExp]') || + (typeof window !== 'undefined' && + // IE8 and below + (fn === window.setTimeout || + fn === window.alert || + fn === window.confirm || + fn === window.prompt)) +}; + + +/***/ }), +/* 17 */ +/***/ (function(module, exports) { + +var toString = {}.toString; + +module.exports = Array.isArray || function (arr) { + return toString.call(arr) == '[object Array]'; +}; + + +/***/ }), +/* 18 */ +/***/ (function(module, exports, __webpack_require__) { + +"use strict"; +/* WEBPACK VAR INJECTION */(function(process) { + +module.exports = Readable; + +/**/ +var processNextTick = __webpack_require__(9); +/**/ + +/**/ +var isArray = __webpack_require__(17); +/**/ + +/**/ +var Duplex; +/**/ + +Readable.ReadableState = ReadableState; + +/**/ +var EE = __webpack_require__(7).EventEmitter; + +var EElistenerCount = function (emitter, type) { + return emitter.listeners(type).length; +}; +/**/ + +/**/ +var Stream = __webpack_require__(20); +/**/ + +var Buffer = __webpack_require__(1).Buffer; +/**/ +var bufferShim = __webpack_require__(6); +/**/ + +/**/ +var util = __webpack_require__(4); +util.inherits = __webpack_require__(2); +/**/ + +/**/ +var debugUtil = __webpack_require__(68); +var debug = void 0; +if (debugUtil && debugUtil.debuglog) { + debug = debugUtil.debuglog('stream'); +} else { + debug = function () {}; +} +/**/ + +var BufferList = __webpack_require__(49); +var StringDecoder; + +util.inherits(Readable, Stream); + +var kProxyEvents = ['error', 'close', 'destroy', 'pause', 'resume']; + +function prependListener(emitter, event, fn) { + // Sadly this is not cacheable as some libraries bundle their own + // event emitter implementation with them. + if (typeof emitter.prependListener === 'function') { + return emitter.prependListener(event, fn); + } else { + // This is a hack to make sure that our error handler is attached before any + // userland ones. NEVER DO THIS. This is here only because this code needs + // to continue to work with older versions of Node.js that do not include + // the prependListener() method. The goal is to eventually remove this hack. + if (!emitter._events || !emitter._events[event]) emitter.on(event, fn);else if (isArray(emitter._events[event])) emitter._events[event].unshift(fn);else emitter._events[event] = [fn, emitter._events[event]]; + } +} + +function ReadableState(options, stream) { + Duplex = Duplex || __webpack_require__(0); + + options = options || {}; + + // object stream flag. Used to make read(n) ignore n and to + // make all the buffer merging and length checks go away + this.objectMode = !!options.objectMode; + + if (stream instanceof Duplex) this.objectMode = this.objectMode || !!options.readableObjectMode; + + // the point at which it stops calling _read() to fill the buffer + // Note: 0 is a valid value, means "don't call _read preemptively ever" + var hwm = options.highWaterMark; + var defaultHwm = this.objectMode ? 16 : 16 * 1024; + this.highWaterMark = hwm || hwm === 0 ? hwm : defaultHwm; + + // cast to ints. + this.highWaterMark = ~~this.highWaterMark; + + // A linked list is used to store data chunks instead of an array because the + // linked list can remove elements from the beginning faster than + // array.shift() + this.buffer = new BufferList(); + this.length = 0; + this.pipes = null; + this.pipesCount = 0; + this.flowing = null; + this.ended = false; + this.endEmitted = false; + this.reading = false; + + // a flag to be able to tell if the onwrite cb is called immediately, + // or on a later tick. We set this to true at first, because any + // actions that shouldn't happen until "later" should generally also + // not happen before the first write call. + this.sync = true; + + // whenever we return null, then we set a flag to say + // that we're awaiting a 'readable' event emission. + this.needReadable = false; + this.emittedReadable = false; + this.readableListening = false; + this.resumeScheduled = false; + + // Crypto is kind of old and crusty. Historically, its default string + // encoding is 'binary' so we have to make this configurable. + // Everything else in the universe uses 'utf8', though. + this.defaultEncoding = options.defaultEncoding || 'utf8'; + + // when piping, we only care about 'readable' events that happen + // after read()ing all the bytes and not getting any pushback. + this.ranOut = false; + + // the number of writers that are awaiting a drain event in .pipe()s + this.awaitDrain = 0; + + // if true, a maybeReadMore has been scheduled + this.readingMore = false; + + this.decoder = null; + this.encoding = null; + if (options.encoding) { + if (!StringDecoder) StringDecoder = __webpack_require__(8).StringDecoder; + this.decoder = new StringDecoder(options.encoding); + this.encoding = options.encoding; + } +} + +function Readable(options) { + Duplex = Duplex || __webpack_require__(0); + + if (!(this instanceof Readable)) return new Readable(options); + + this._readableState = new ReadableState(options, this); + + // legacy + this.readable = true; + + if (options && typeof options.read === 'function') this._read = options.read; + + Stream.call(this); +} + +// Manually shove something into the read() buffer. +// This returns true if the highWaterMark has not been hit yet, +// similar to how Writable.write() returns true if you should +// write() some more. +Readable.prototype.push = function (chunk, encoding) { + var state = this._readableState; + + if (!state.objectMode && typeof chunk === 'string') { + encoding = encoding || state.defaultEncoding; + if (encoding !== state.encoding) { + chunk = bufferShim.from(chunk, encoding); + encoding = ''; + } + } + + return readableAddChunk(this, state, chunk, encoding, false); +}; + +// Unshift should *always* be something directly out of read() +Readable.prototype.unshift = function (chunk) { + var state = this._readableState; + return readableAddChunk(this, state, chunk, '', true); +}; + +Readable.prototype.isPaused = function () { + return this._readableState.flowing === false; +}; + +function readableAddChunk(stream, state, chunk, encoding, addToFront) { + var er = chunkInvalid(state, chunk); + if (er) { + stream.emit('error', er); + } else if (chunk === null) { + state.reading = false; + onEofChunk(stream, state); + } else if (state.objectMode || chunk && chunk.length > 0) { + if (state.ended && !addToFront) { + var e = new Error('stream.push() after EOF'); + stream.emit('error', e); + } else if (state.endEmitted && addToFront) { + var _e = new Error('stream.unshift() after end event'); + stream.emit('error', _e); + } else { + var skipAdd; + if (state.decoder && !addToFront && !encoding) { + chunk = state.decoder.write(chunk); + skipAdd = !state.objectMode && chunk.length === 0; + } + + if (!addToFront) state.reading = false; + + // Don't add to the buffer if we've decoded to an empty string chunk and + // we're not in object mode + if (!skipAdd) { + // if we want the data now, just emit it. + if (state.flowing && state.length === 0 && !state.sync) { + stream.emit('data', chunk); + stream.read(0); + } else { + // update the buffer info. + state.length += state.objectMode ? 1 : chunk.length; + if (addToFront) state.buffer.unshift(chunk);else state.buffer.push(chunk); + + if (state.needReadable) emitReadable(stream); + } + } + + maybeReadMore(stream, state); + } + } else if (!addToFront) { + state.reading = false; + } + + return needMoreData(state); +} + +// if it's past the high water mark, we can push in some more. +// Also, if we have no data yet, we can stand some +// more bytes. This is to work around cases where hwm=0, +// such as the repl. Also, if the push() triggered a +// readable event, and the user called read(largeNumber) such that +// needReadable was set, then we ought to push more, so that another +// 'readable' event will be triggered. +function needMoreData(state) { + return !state.ended && (state.needReadable || state.length < state.highWaterMark || state.length === 0); +} + +// backwards compatibility. +Readable.prototype.setEncoding = function (enc) { + if (!StringDecoder) StringDecoder = __webpack_require__(8).StringDecoder; + this._readableState.decoder = new StringDecoder(enc); + this._readableState.encoding = enc; + return this; +}; + +// Don't raise the hwm > 8MB +var MAX_HWM = 0x800000; +function computeNewHighWaterMark(n) { + if (n >= MAX_HWM) { + n = MAX_HWM; + } else { + // Get the next highest power of 2 to prevent increasing hwm excessively in + // tiny amounts + n--; + n |= n >>> 1; + n |= n >>> 2; + n |= n >>> 4; + n |= n >>> 8; + n |= n >>> 16; + n++; + } + return n; +} + +// This function is designed to be inlinable, so please take care when making +// changes to the function body. +function howMuchToRead(n, state) { + if (n <= 0 || state.length === 0 && state.ended) return 0; + if (state.objectMode) return 1; + if (n !== n) { + // Only flow one buffer at a time + if (state.flowing && state.length) return state.buffer.head.data.length;else return state.length; + } + // If we're asking for more than the current hwm, then raise the hwm. + if (n > state.highWaterMark) state.highWaterMark = computeNewHighWaterMark(n); + if (n <= state.length) return n; + // Don't have enough + if (!state.ended) { + state.needReadable = true; + return 0; + } + return state.length; +} + +// you can override either this method, or the async _read(n) below. +Readable.prototype.read = function (n) { + debug('read', n); + n = parseInt(n, 10); + var state = this._readableState; + var nOrig = n; + + if (n !== 0) state.emittedReadable = false; + + // if we're doing read(0) to trigger a readable event, but we + // already have a bunch of data in the buffer, then just trigger + // the 'readable' event and move on. + if (n === 0 && state.needReadable && (state.length >= state.highWaterMark || state.ended)) { + debug('read: emitReadable', state.length, state.ended); + if (state.length === 0 && state.ended) endReadable(this);else emitReadable(this); + return null; + } + + n = howMuchToRead(n, state); + + // if we've ended, and we're now clear, then finish it up. + if (n === 0 && state.ended) { + if (state.length === 0) endReadable(this); + return null; + } + + // All the actual chunk generation logic needs to be + // *below* the call to _read. The reason is that in certain + // synthetic stream cases, such as passthrough streams, _read + // may be a completely synchronous operation which may change + // the state of the read buffer, providing enough data when + // before there was *not* enough. + // + // So, the steps are: + // 1. Figure out what the state of things will be after we do + // a read from the buffer. + // + // 2. If that resulting state will trigger a _read, then call _read. + // Note that this may be asynchronous, or synchronous. Yes, it is + // deeply ugly to write APIs this way, but that still doesn't mean + // that the Readable class should behave improperly, as streams are + // designed to be sync/async agnostic. + // Take note if the _read call is sync or async (ie, if the read call + // has returned yet), so that we know whether or not it's safe to emit + // 'readable' etc. + // + // 3. Actually pull the requested chunks out of the buffer and return. + + // if we need a readable event, then we need to do some reading. + var doRead = state.needReadable; + debug('need readable', doRead); + + // if we currently have less than the highWaterMark, then also read some + if (state.length === 0 || state.length - n < state.highWaterMark) { + doRead = true; + debug('length less than watermark', doRead); + } + + // however, if we've ended, then there's no point, and if we're already + // reading, then it's unnecessary. + if (state.ended || state.reading) { + doRead = false; + debug('reading or ended', doRead); + } else if (doRead) { + debug('do read'); + state.reading = true; + state.sync = true; + // if the length is currently zero, then we *need* a readable event. + if (state.length === 0) state.needReadable = true; + // call internal read method + this._read(state.highWaterMark); + state.sync = false; + // If _read pushed data synchronously, then `reading` will be false, + // and we need to re-evaluate how much data we can return to the user. + if (!state.reading) n = howMuchToRead(nOrig, state); + } + + var ret; + if (n > 0) ret = fromList(n, state);else ret = null; + + if (ret === null) { + state.needReadable = true; + n = 0; + } else { + state.length -= n; + } + + if (state.length === 0) { + // If we have nothing in the buffer, then we want to know + // as soon as we *do* get something into the buffer. + if (!state.ended) state.needReadable = true; + + // If we tried to read() past the EOF, then emit end on the next tick. + if (nOrig !== n && state.ended) endReadable(this); + } + + if (ret !== null) this.emit('data', ret); + + return ret; +}; + +function chunkInvalid(state, chunk) { + var er = null; + if (!Buffer.isBuffer(chunk) && typeof chunk !== 'string' && chunk !== null && chunk !== undefined && !state.objectMode) { + er = new TypeError('Invalid non-string/buffer chunk'); + } + return er; +} + +function onEofChunk(stream, state) { + if (state.ended) return; + if (state.decoder) { + var chunk = state.decoder.end(); + if (chunk && chunk.length) { + state.buffer.push(chunk); + state.length += state.objectMode ? 1 : chunk.length; + } + } + state.ended = true; + + // emit 'readable' now to make sure it gets picked up. + emitReadable(stream); +} + +// Don't emit readable right away in sync mode, because this can trigger +// another read() call => stack overflow. This way, it might trigger +// a nextTick recursion warning, but that's not so bad. +function emitReadable(stream) { + var state = stream._readableState; + state.needReadable = false; + if (!state.emittedReadable) { + debug('emitReadable', state.flowing); + state.emittedReadable = true; + if (state.sync) processNextTick(emitReadable_, stream);else emitReadable_(stream); + } +} + +function emitReadable_(stream) { + debug('emit readable'); + stream.emit('readable'); + flow(stream); +} + +// at this point, the user has presumably seen the 'readable' event, +// and called read() to consume some data. that may have triggered +// in turn another _read(n) call, in which case reading = true if +// it's in progress. +// However, if we're not ended, or reading, and the length < hwm, +// then go ahead and try to read some more preemptively. +function maybeReadMore(stream, state) { + if (!state.readingMore) { + state.readingMore = true; + processNextTick(maybeReadMore_, stream, state); + } +} + +function maybeReadMore_(stream, state) { + var len = state.length; + while (!state.reading && !state.flowing && !state.ended && state.length < state.highWaterMark) { + debug('maybeReadMore read 0'); + stream.read(0); + if (len === state.length) + // didn't get any data, stop spinning. + break;else len = state.length; + } + state.readingMore = false; +} + +// abstract method. to be overridden in specific implementation classes. +// call cb(er, data) where data is <= n in length. +// for virtual (non-string, non-buffer) streams, "length" is somewhat +// arbitrary, and perhaps not very meaningful. +Readable.prototype._read = function (n) { + this.emit('error', new Error('_read() is not implemented')); +}; + +Readable.prototype.pipe = function (dest, pipeOpts) { + var src = this; + var state = this._readableState; + + switch (state.pipesCount) { + case 0: + state.pipes = dest; + break; + case 1: + state.pipes = [state.pipes, dest]; + break; + default: + state.pipes.push(dest); + break; + } + state.pipesCount += 1; + debug('pipe count=%d opts=%j', state.pipesCount, pipeOpts); + + var doEnd = (!pipeOpts || pipeOpts.end !== false) && dest !== process.stdout && dest !== process.stderr; + + var endFn = doEnd ? onend : cleanup; + if (state.endEmitted) processNextTick(endFn);else src.once('end', endFn); + + dest.on('unpipe', onunpipe); + function onunpipe(readable) { + debug('onunpipe'); + if (readable === src) { + cleanup(); + } + } + + function onend() { + debug('onend'); + dest.end(); + } + + // when the dest drains, it reduces the awaitDrain counter + // on the source. This would be more elegant with a .once() + // handler in flow(), but adding and removing repeatedly is + // too slow. + var ondrain = pipeOnDrain(src); + dest.on('drain', ondrain); + + var cleanedUp = false; + function cleanup() { + debug('cleanup'); + // cleanup event handlers once the pipe is broken + dest.removeListener('close', onclose); + dest.removeListener('finish', onfinish); + dest.removeListener('drain', ondrain); + dest.removeListener('error', onerror); + dest.removeListener('unpipe', onunpipe); + src.removeListener('end', onend); + src.removeListener('end', cleanup); + src.removeListener('data', ondata); + + cleanedUp = true; + + // if the reader is waiting for a drain event from this + // specific writer, then it would cause it to never start + // flowing again. + // So, if this is awaiting a drain, then we just call it now. + // If we don't know, then assume that we are waiting for one. + if (state.awaitDrain && (!dest._writableState || dest._writableState.needDrain)) ondrain(); + } + + // If the user pushes more data while we're writing to dest then we'll end up + // in ondata again. However, we only want to increase awaitDrain once because + // dest will only emit one 'drain' event for the multiple writes. + // => Introduce a guard on increasing awaitDrain. + var increasedAwaitDrain = false; + src.on('data', ondata); + function ondata(chunk) { + debug('ondata'); + increasedAwaitDrain = false; + var ret = dest.write(chunk); + if (false === ret && !increasedAwaitDrain) { + // If the user unpiped during `dest.write()`, it is possible + // to get stuck in a permanently paused state if that write + // also returned false. + // => Check whether `dest` is still a piping destination. + if ((state.pipesCount === 1 && state.pipes === dest || state.pipesCount > 1 && indexOf(state.pipes, dest) !== -1) && !cleanedUp) { + debug('false write response, pause', src._readableState.awaitDrain); + src._readableState.awaitDrain++; + increasedAwaitDrain = true; + } + src.pause(); + } + } + + // if the dest has an error, then stop piping into it. + // however, don't suppress the throwing behavior for this. + function onerror(er) { + debug('onerror', er); + unpipe(); + dest.removeListener('error', onerror); + if (EElistenerCount(dest, 'error') === 0) dest.emit('error', er); + } + + // Make sure our error handler is attached before userland ones. + prependListener(dest, 'error', onerror); + + // Both close and finish should trigger unpipe, but only once. + function onclose() { + dest.removeListener('finish', onfinish); + unpipe(); + } + dest.once('close', onclose); + function onfinish() { + debug('onfinish'); + dest.removeListener('close', onclose); + unpipe(); + } + dest.once('finish', onfinish); + + function unpipe() { + debug('unpipe'); + src.unpipe(dest); + } + + // tell the dest that it's being piped to + dest.emit('pipe', src); + + // start the flow if it hasn't been started already. + if (!state.flowing) { + debug('pipe resume'); + src.resume(); + } + + return dest; +}; + +function pipeOnDrain(src) { + return function () { + var state = src._readableState; + debug('pipeOnDrain', state.awaitDrain); + if (state.awaitDrain) state.awaitDrain--; + if (state.awaitDrain === 0 && EElistenerCount(src, 'data')) { + state.flowing = true; + flow(src); + } + }; +} + +Readable.prototype.unpipe = function (dest) { + var state = this._readableState; + + // if we're not piping anywhere, then do nothing. + if (state.pipesCount === 0) return this; + + // just one destination. most common case. + if (state.pipesCount === 1) { + // passed in one, but it's not the right one. + if (dest && dest !== state.pipes) return this; + + if (!dest) dest = state.pipes; + + // got a match. + state.pipes = null; + state.pipesCount = 0; + state.flowing = false; + if (dest) dest.emit('unpipe', this); + return this; + } + + // slow case. multiple pipe destinations. + + if (!dest) { + // remove all. + var dests = state.pipes; + var len = state.pipesCount; + state.pipes = null; + state.pipesCount = 0; + state.flowing = false; + + for (var i = 0; i < len; i++) { + dests[i].emit('unpipe', this); + }return this; + } + + // try to find the right one. + var index = indexOf(state.pipes, dest); + if (index === -1) return this; + + state.pipes.splice(index, 1); + state.pipesCount -= 1; + if (state.pipesCount === 1) state.pipes = state.pipes[0]; + + dest.emit('unpipe', this); + + return this; +}; + +// set up data events if they are asked for +// Ensure readable listeners eventually get something +Readable.prototype.on = function (ev, fn) { + var res = Stream.prototype.on.call(this, ev, fn); + + if (ev === 'data') { + // Start flowing on next tick if stream isn't explicitly paused + if (this._readableState.flowing !== false) this.resume(); + } else if (ev === 'readable') { + var state = this._readableState; + if (!state.endEmitted && !state.readableListening) { + state.readableListening = state.needReadable = true; + state.emittedReadable = false; + if (!state.reading) { + processNextTick(nReadingNextTick, this); + } else if (state.length) { + emitReadable(this, state); + } + } + } + + return res; +}; +Readable.prototype.addListener = Readable.prototype.on; + +function nReadingNextTick(self) { + debug('readable nexttick read 0'); + self.read(0); +} + +// pause() and resume() are remnants of the legacy readable stream API +// If the user uses them, then switch into old mode. +Readable.prototype.resume = function () { + var state = this._readableState; + if (!state.flowing) { + debug('resume'); + state.flowing = true; + resume(this, state); + } + return this; +}; + +function resume(stream, state) { + if (!state.resumeScheduled) { + state.resumeScheduled = true; + processNextTick(resume_, stream, state); + } +} + +function resume_(stream, state) { + if (!state.reading) { + debug('resume read 0'); + stream.read(0); + } + + state.resumeScheduled = false; + state.awaitDrain = 0; + stream.emit('resume'); + flow(stream); + if (state.flowing && !state.reading) stream.read(0); +} + +Readable.prototype.pause = function () { + debug('call pause flowing=%j', this._readableState.flowing); + if (false !== this._readableState.flowing) { + debug('pause'); + this._readableState.flowing = false; + this.emit('pause'); + } + return this; +}; + +function flow(stream) { + var state = stream._readableState; + debug('flow', state.flowing); + while (state.flowing && stream.read() !== null) {} +} + +// wrap an old-style stream as the async data source. +// This is *not* part of the readable stream interface. +// It is an ugly unfortunate mess of history. +Readable.prototype.wrap = function (stream) { + var state = this._readableState; + var paused = false; + + var self = this; + stream.on('end', function () { + debug('wrapped end'); + if (state.decoder && !state.ended) { + var chunk = state.decoder.end(); + if (chunk && chunk.length) self.push(chunk); + } + + self.push(null); + }); + + stream.on('data', function (chunk) { + debug('wrapped data'); + if (state.decoder) chunk = state.decoder.write(chunk); + + // don't skip over falsy values in objectMode + if (state.objectMode && (chunk === null || chunk === undefined)) return;else if (!state.objectMode && (!chunk || !chunk.length)) return; + + var ret = self.push(chunk); + if (!ret) { + paused = true; + stream.pause(); + } + }); + + // proxy all the other methods. + // important when wrapping filters and duplexes. + for (var i in stream) { + if (this[i] === undefined && typeof stream[i] === 'function') { + this[i] = function (method) { + return function () { + return stream[method].apply(stream, arguments); + }; + }(i); + } + } + + // proxy certain important events. + for (var n = 0; n < kProxyEvents.length; n++) { + stream.on(kProxyEvents[n], self.emit.bind(self, kProxyEvents[n])); + } + + // when we try to consume some more bytes, simply unpause the + // underlying stream. + self._read = function (n) { + debug('wrapped _read', n); + if (paused) { + paused = false; + stream.resume(); + } + }; + + return self; +}; + +// exposed for testing purposes only. +Readable._fromList = fromList; + +// Pluck off n bytes from an array of buffers. +// Length is the combined lengths of all the buffers in the list. +// This function is designed to be inlinable, so please take care when making +// changes to the function body. +function fromList(n, state) { + // nothing buffered + if (state.length === 0) return null; + + var ret; + if (state.objectMode) ret = state.buffer.shift();else if (!n || n >= state.length) { + // read it all, truncate the list + if (state.decoder) ret = state.buffer.join('');else if (state.buffer.length === 1) ret = state.buffer.head.data;else ret = state.buffer.concat(state.length); + state.buffer.clear(); + } else { + // read part of list + ret = fromListPartial(n, state.buffer, state.decoder); + } + + return ret; +} + +// Extracts only enough buffered data to satisfy the amount requested. +// This function is designed to be inlinable, so please take care when making +// changes to the function body. +function fromListPartial(n, list, hasStrings) { + var ret; + if (n < list.head.data.length) { + // slice is the same for buffers and strings + ret = list.head.data.slice(0, n); + list.head.data = list.head.data.slice(n); + } else if (n === list.head.data.length) { + // first chunk is a perfect match + ret = list.shift(); + } else { + // result spans more than one buffer + ret = hasStrings ? copyFromBufferString(n, list) : copyFromBuffer(n, list); + } + return ret; +} + +// Copies a specified amount of characters from the list of buffered data +// chunks. +// This function is designed to be inlinable, so please take care when making +// changes to the function body. +function copyFromBufferString(n, list) { + var p = list.head; + var c = 1; + var ret = p.data; + n -= ret.length; + while (p = p.next) { + var str = p.data; + var nb = n > str.length ? str.length : n; + if (nb === str.length) ret += str;else ret += str.slice(0, n); + n -= nb; + if (n === 0) { + if (nb === str.length) { + ++c; + if (p.next) list.head = p.next;else list.head = list.tail = null; + } else { + list.head = p; + p.data = str.slice(nb); + } + break; + } + ++c; + } + list.length -= c; + return ret; +} + +// Copies a specified amount of bytes from the list of buffered data chunks. +// This function is designed to be inlinable, so please take care when making +// changes to the function body. +function copyFromBuffer(n, list) { + var ret = bufferShim.allocUnsafe(n); + var p = list.head; + var c = 1; + p.data.copy(ret); + n -= p.data.length; + while (p = p.next) { + var buf = p.data; + var nb = n > buf.length ? buf.length : n; + buf.copy(ret, ret.length - n, 0, nb); + n -= nb; + if (n === 0) { + if (nb === buf.length) { + ++c; + if (p.next) list.head = p.next;else list.head = list.tail = null; + } else { + list.head = p; + p.data = buf.slice(nb); + } + break; + } + ++c; + } + list.length -= c; + return ret; +} + +function endReadable(stream) { + var state = stream._readableState; + + // If we get here before consuming all the bytes, then that is a + // bug in node. Should never happen. + if (state.length > 0) throw new Error('"endReadable()" called on non-empty stream'); + + if (!state.endEmitted) { + state.ended = true; + processNextTick(endReadableNT, state, stream); + } +} + +function endReadableNT(state, stream) { + // Check that we didn't get one last unshift. + if (!state.endEmitted && state.length === 0) { + state.endEmitted = true; + stream.readable = false; + stream.emit('end'); + } +} + +function forEach(xs, f) { + for (var i = 0, l = xs.length; i < l; i++) { + f(xs[i], i); + } +} + +function indexOf(xs, x) { + for (var i = 0, l = xs.length; i < l; i++) { + if (xs[i] === x) return i; + } + return -1; +} +/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(5))) + +/***/ }), +/* 19 */ +/***/ (function(module, exports, __webpack_require__) { + +"use strict"; +// a transform stream is a readable/writable stream where you do +// something with the data. Sometimes it's called a "filter", +// but that's not a great name for it, since that implies a thing where +// some bits pass through, and others are simply ignored. (That would +// be a valid example of a transform, of course.) +// +// While the output is causally related to the input, it's not a +// necessarily symmetric or synchronous transformation. For example, +// a zlib stream might take multiple plain-text writes(), and then +// emit a single compressed chunk some time in the future. +// +// Here's how this works: +// +// The Transform stream has all the aspects of the readable and writable +// stream classes. When you write(chunk), that calls _write(chunk,cb) +// internally, and returns false if there's a lot of pending writes +// buffered up. When you call read(), that calls _read(n) until +// there's enough pending readable data buffered up. +// +// In a transform stream, the written data is placed in a buffer. When +// _read(n) is called, it transforms the queued up data, calling the +// buffered _write cb's as it consumes chunks. If consuming a single +// written chunk would result in multiple output chunks, then the first +// outputted bit calls the readcb, and subsequent chunks just go into +// the read buffer, and will cause it to emit 'readable' if necessary. +// +// This way, back-pressure is actually determined by the reading side, +// since _read has to be called to start processing a new chunk. However, +// a pathological inflate type of transform can cause excessive buffering +// here. For example, imagine a stream where every byte of input is +// interpreted as an integer from 0-255, and then results in that many +// bytes of output. Writing the 4 bytes {ff,ff,ff,ff} would result in +// 1kb of data being output. In this case, you could write a very small +// amount of input, and end up with a very large amount of output. In +// such a pathological inflating mechanism, there'd be no way to tell +// the system to stop doing the transform. A single 4MB write could +// cause the system to run out of memory. +// +// However, even in such a pathological case, only a single written chunk +// would be consumed, and then the rest would wait (un-transformed) until +// the results of the previous transformed chunk were consumed. + + + +module.exports = Transform; + +var Duplex = __webpack_require__(0); + +/**/ +var util = __webpack_require__(4); +util.inherits = __webpack_require__(2); +/**/ + +util.inherits(Transform, Duplex); + +function TransformState(stream) { + this.afterTransform = function (er, data) { + return afterTransform(stream, er, data); + }; + + this.needTransform = false; + this.transforming = false; + this.writecb = null; + this.writechunk = null; + this.writeencoding = null; +} + +function afterTransform(stream, er, data) { + var ts = stream._transformState; + ts.transforming = false; + + var cb = ts.writecb; + + if (!cb) return stream.emit('error', new Error('no writecb in Transform class')); + + ts.writechunk = null; + ts.writecb = null; + + if (data !== null && data !== undefined) stream.push(data); + + cb(er); + + var rs = stream._readableState; + rs.reading = false; + if (rs.needReadable || rs.length < rs.highWaterMark) { + stream._read(rs.highWaterMark); + } +} + +function Transform(options) { + if (!(this instanceof Transform)) return new Transform(options); + + Duplex.call(this, options); + + this._transformState = new TransformState(this); + + var stream = this; + + // start out asking for a readable event once data is transformed. + this._readableState.needReadable = true; + + // we have implemented the _read method, and done the other things + // that Readable wants before the first _read call, so unset the + // sync guard flag. + this._readableState.sync = false; + + if (options) { + if (typeof options.transform === 'function') this._transform = options.transform; + + if (typeof options.flush === 'function') this._flush = options.flush; + } + + // When the writable side finishes, then flush out anything remaining. + this.once('prefinish', function () { + if (typeof this._flush === 'function') this._flush(function (er, data) { + done(stream, er, data); + });else done(stream); + }); +} + +Transform.prototype.push = function (chunk, encoding) { + this._transformState.needTransform = false; + return Duplex.prototype.push.call(this, chunk, encoding); +}; + +// This is the part where you do stuff! +// override this function in implementation classes. +// 'chunk' is an input chunk. +// +// Call `push(newChunk)` to pass along transformed output +// to the readable side. You may call 'push' zero or more times. +// +// Call `cb(err)` when you are done with this chunk. If you pass +// an error, then that'll put the hurt on the whole operation. If you +// never call cb(), then you'll never get another chunk. +Transform.prototype._transform = function (chunk, encoding, cb) { + throw new Error('_transform() is not implemented'); +}; + +Transform.prototype._write = function (chunk, encoding, cb) { + var ts = this._transformState; + ts.writecb = cb; + ts.writechunk = chunk; + ts.writeencoding = encoding; + if (!ts.transforming) { + var rs = this._readableState; + if (ts.needTransform || rs.needReadable || rs.length < rs.highWaterMark) this._read(rs.highWaterMark); + } +}; + +// Doesn't matter what the args are here. +// _transform does all the work. +// That we got here means that the readable side wants more data. +Transform.prototype._read = function (n) { + var ts = this._transformState; + + if (ts.writechunk !== null && ts.writecb && !ts.transforming) { + ts.transforming = true; + this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform); + } else { + // mark that we need a transform, so that any data that comes in + // will get processed, now that we've asked for it. + ts.needTransform = true; + } +}; + +function done(stream, er, data) { + if (er) return stream.emit('error', er); + + if (data !== null && data !== undefined) stream.push(data); + + // if there's nothing in the write buffer, then that means + // that nothing more will ever be provided + var ws = stream._writableState; + var ts = stream._transformState; + + if (ws.length) throw new Error('Calling transform done when ws.length != 0'); + + if (ts.transforming) throw new Error('Calling transform done when still transforming'); + + return stream.push(null); +} + +/***/ }), +/* 20 */ +/***/ (function(module, exports, __webpack_require__) { + +module.exports = __webpack_require__(7).EventEmitter; + + +/***/ }), +/* 21 */ +/***/ (function(module, exports, __webpack_require__) { + +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +module.exports = Stream; + +var EE = __webpack_require__(7).EventEmitter; +var inherits = __webpack_require__(2); + +inherits(Stream, EE); +Stream.Readable = __webpack_require__(11); +Stream.Writable = __webpack_require__(52); +Stream.Duplex = __webpack_require__(47); +Stream.Transform = __webpack_require__(51); +Stream.PassThrough = __webpack_require__(50); + +// Backwards-compat with node 0.4.x +Stream.Stream = Stream; + + + +// old-style streams. Note that the pipe method (the only relevant +// part of this class) is overridden in the Readable class. + +function Stream() { + EE.call(this); +} + +Stream.prototype.pipe = function(dest, options) { + var source = this; + + function ondata(chunk) { + if (dest.writable) { + if (false === dest.write(chunk) && source.pause) { + source.pause(); + } + } + } + + source.on('data', ondata); + + function ondrain() { + if (source.readable && source.resume) { + source.resume(); + } + } + + dest.on('drain', ondrain); + + // If the 'end' option is not supplied, dest.end() will be called when + // source gets the 'end' or 'close' events. Only dest.end() once. + if (!dest._isStdio && (!options || options.end !== false)) { + source.on('end', onend); + source.on('close', onclose); + } + + var didOnEnd = false; + function onend() { + if (didOnEnd) return; + didOnEnd = true; + + dest.end(); + } + + + function onclose() { + if (didOnEnd) return; + didOnEnd = true; + + if (typeof dest.destroy === 'function') dest.destroy(); + } + + // don't leave dangling pipes when there are errors. + function onerror(er) { + cleanup(); + if (EE.listenerCount(this, 'error') === 0) { + throw er; // Unhandled stream error in pipe. + } + } + + source.on('error', onerror); + dest.on('error', onerror); + + // remove all the event listeners that were added. + function cleanup() { + source.removeListener('data', ondata); + dest.removeListener('drain', ondrain); + + source.removeListener('end', onend); + source.removeListener('close', onclose); + + source.removeListener('error', onerror); + dest.removeListener('error', onerror); + + source.removeListener('end', cleanup); + source.removeListener('close', cleanup); + + dest.removeListener('close', cleanup); + } + + source.on('end', cleanup); + source.on('close', cleanup); + + dest.on('close', cleanup); + + dest.emit('pipe', source); + + // Allow for unix-like usage: A.pipe(B).pipe(C) + return dest; +}; + + +/***/ }), +/* 22 */ +/***/ (function(module, exports, __webpack_require__) { + +"use strict"; + + +Object.defineProperty(exports, "__esModule", { + value: true +}); + +var _statsJs = __webpack_require__(55); + +var _statsJs2 = _interopRequireDefault(_statsJs); + +var _datGui = __webpack_require__(30); + +var _datGui2 = _interopRequireDefault(_datGui); + +var _webgl = __webpack_require__(28); + +var _webgl2 = _interopRequireDefault(_webgl); + +var _camera = __webpack_require__(12); + +var _camera2 = _interopRequireDefault(_camera); + +var _controls = __webpack_require__(13); + +var _controls2 = _interopRequireDefault(_controls); + +var _lyric = __webpack_require__(26); + +var _lyric2 = _interopRequireDefault(_lyric); + +var _character = __webpack_require__(14); + +var _character2 = _interopRequireDefault(_character); + +function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } + +function init(callback, update) { + var stats = new _statsJs2.default(); + stats.setMode(0); + stats.domElement.style.position = 'absolute'; + stats.domElement.style.left = '0px'; + stats.domElement.style.top = '0px'; + //document.body.appendChild(stats.domElement); + + var gui = new _datGui2.default.GUI(); + + var framework = { + gui: gui + }; + + window.addEventListener('load', function () { + + framework.webgl = new _webgl2.default(); + framework.canvas = framework.webgl.canvas; + + window.addEventListener('resize', function () { + resize(framework.webgl.gl.canvas); + }, false); + + framework.camera = new _camera2.default(framework.canvas); + framework.controls = new _controls2.default(framework.canvas, framework.camera); + framework.lyric = new _lyric2.default(); + + // begin the animation loop + (function tick() { + stats.begin(); + update(framework); // perform any requested updates + stats.end(); + requestAnimationFrame(tick); // register to call this again when the browser renders a new frame + })(); + + // we will pass the scene, gui, renderer, camera, etc... to the callback function + return callback(framework); + }); +} //require('file-loader?name=[name].[ext]!../index.html'); + + +function resize(canvas) { + var cssToActualPixels = window.devicePixelRatio || 1; + + var screenWidth = Math.floor(canvas.clientWidth * cssToActualPixels); + var screenHeight = Math.floor(canvas.clientHeight * cssToActualPixels); + + if (canvas.width !== screenWidth || canvas.height !== screenHeight) { + canvas.width = screenWidth; + canvas.height = screenHeight; + } +} + +exports.default = { + init: init +}; + +/***/ }), +/* 23 */ +/***/ (function(module, exports, __webpack_require__) { + +/* WEBPACK VAR INJECTION */(function(global) {/*! glm-js built 2017-04-02 11:34:38-04:00 | (c) humbletim | http://humbletim.github.io/glm-js */ +(function declare_glmjs_glmatrix(globals, $GLM_log, $GLM_console_log) { var GLM, GLMAT, GLMAT_VERSION, GLMJS_PREFIX, $GLM_console_factory, glm; ArrayBuffer.exists; +/* + + -------------------------------------------------------------------------- + glm-js | (c) humbletim | http://humbletim.github.io/glm-js + -------------------------------------------------------------------------- + + The MIT License (MIT) + + Copyright (c) 2015-2016 humbletim + + Permission is hereby granted, free of charge, to any person obtaining a copy + of this software and associated documentation files (the "Software"), to deal + in the Software without restriction, including without limitation the rights + to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + copies of the Software, and to permit persons to whom the Software is + furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included in all + copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + SOFTWARE. + + -------------------------------------------------------------------------- + gl-matrix | (c) Brandon Jones, Colin MacKenzie IV | http://glmatrix.net/ + -------------------------------------------------------------------------- + + Copyright (c) 2013 Brandon Jones, Colin MacKenzie IV + + This software is provided 'as-is', without any express or implied + warranty. In no event will the authors be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + + 2. Altered source versions must be plainly marked as such, and must not + be misrepresented as being the original software. + + 3. This notice may not be removed or altered from any source distribution. +*/ +GLMAT={};GLMAT_VERSION="2.2.2"; +(function(a){a.VERSION=GLMAT_VERSION;if(!b)var b=1E-6;if(!c)var c="undefined"!==typeof Float32Array?Float32Array:Array;if(!e)var e=Math.random;var d={setMatrixArrayType:function(y){c=y}};"undefined"!==typeof a&&(a.glMatrix=d);var h=Math.PI/180;d.toRadian=function(y){return y*h};d={create:function(){var y=new c(2);y[0]=0;y[1]=0;return y},clone:function(y){var a=new c(2);a[0]=y[0];a[1]=y[1];return a},fromValues:function(y,a){var v=new c(2);v[0]=y;v[1]=a;return v},copy:function(y,a){y[0]=a[0];y[1]=a[1]; +return y},set:function(y,a,v){y[0]=a;y[1]=v;return y},add:function(y,a,v){y[0]=a[0]+v[0];y[1]=a[1]+v[1];return y},subtract:function(y,a,v){y[0]=a[0]-v[0];y[1]=a[1]-v[1];return y}};d.sub=d.subtract;d.multiply=function(y,a,v){y[0]=a[0]*v[0];y[1]=a[1]*v[1];return y};d.mul=d.multiply;d.divide=function(y,a,v){y[0]=a[0]/v[0];y[1]=a[1]/v[1];return y};d.div=d.divide;d.min=function(y,a,v){y[0]=Math.min(a[0],v[0]);y[1]=Math.min(a[1],v[1]);return y};d.max=function(y,a,v){y[0]=Math.max(a[0],v[0]);y[1]=Math.max(a[1], +v[1]);return y};d.scale=function(y,a,v){y[0]=a[0]*v;y[1]=a[1]*v;return y};d.scaleAndAdd=function(y,a,v,b){y[0]=a[0]+v[0]*b;y[1]=a[1]+v[1]*b;return y};d.distance=function(a,f){var v=f[0]-a[0],b=f[1]-a[1];return Math.sqrt(v*v+b*b)};d.dist=d.distance;d.squaredDistance=function(a,f){var v=f[0]-a[0],b=f[1]-a[1];return v*v+b*b};d.sqrDist=d.squaredDistance;d.length=function(a){var f=a[0];a=a[1];return Math.sqrt(f*f+a*a)};d.len=d.length;d.squaredLength=function(a){var f=a[0];a=a[1];return f*f+a*a};d.sqrLen= +d.squaredLength;d.negate=function(a,f){a[0]=-f[0];a[1]=-f[1];return a};d.inverse=function(a,f){a[0]=1/f[0];a[1]=1/f[1];return a};d.normalize=function(a,f){var v=f[0],b=f[1],v=v*v+b*b;0d)return g.cross(q,s,b),1E-6>g.length(q)&&g.cross(q,t,b),g.normalize(q,q),m.setAxisAngle(a,q,Math.PI),a;if(0.999999q&&(q=-q,j=-j,i=-i,m=-m,c=-c);1E-6<1-q?(k=Math.acos(q),s=Math.sin(k),q=Math.sin((1-d)*k)/s,d=Math.sin(d*k)/s):q=1-d;a[0]=q*e+d*j;a[1]=q*g+d*i;a[2]=q*h+d*m;a[3]=q*b+d*c;return a};m.invert=function(a,b){var c=b[0],d=b[1],e=b[2],g=b[3],h=c*c+d*d+e*e+g*g,h=h?1/h:0;a[0]=-c*h;a[1]=-d*h;a[2]=-e*h;a[3]=g*h;return a};m.conjugate=function(a,b){a[0]= +-b[0];a[1]=-b[1];a[2]=-b[2];a[3]=b[3];return a};m.length=i.length;m.len=m.length;m.squaredLength=i.squaredLength;m.sqrLen=m.squaredLength;m.normalize=i.normalize;m.fromMat3=function(a,b){var c=b[0]+b[4]+b[8];if(0b[0]&&(d=1);b[8]>b[3*d+d]&&(d=2);var e=(d+1)%3,g=(d+2)%3,c=Math.sqrt(b[3*d+d]-b[3*e+e]-b[3*g+g]+1);a[d]=0.5*c;c=0.5/c;a[3]=(b[3*e+g]-b[3*g+e])*c;a[e]=(b[3*e+d]+b[3*d+e])*c;a[g]= +(b[3*g+d]+b[3*d+g])*c}return a};m.str=function(a){return"quat("+a[0]+", "+a[1]+", "+a[2]+", "+a[3]+")"};"undefined"!==typeof 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+GLM.$to_string=GLM.$template["declare"]({$to_string:{"function":function(a){return"[function "+(a.name||"anonymous")+"]"},ArrayBuffer:function(a){return"[object ArrayBuffer "+JSON.stringify({byteLength:a.byteLength})+"]"},Float32Array:function(a){return"[object Float32Array "+JSON.stringify({length:a.length,byteOffset:a.byteOffset,byteLength:a.byteLength,BPE:a.BYTES_PER_ELEMENT})+"]"},"float":function(a,b){return GLM.$toFixedString("float",{value:a},["value"],b&&b.precision)},string:function(a){return a}, +bool:function(a){return"bool("+a+")"},"vec":function(a,b){return GLM.$toFixedString(a.$type_name,a,a.$components,b&&b.precision)},"uvec":function(a,b){return GLM.$toFixedString(a.$type_name,a,a.$components,b&&"object"===typeof b&&b.precision||0)},"ivec":function(a,b){return GLM.$toFixedString(a.$type_name,a,a.$components,b&&"object"===typeof b&&b.precision||0)},"bvec":function(a){return a.$type_name+"("+GLM.$to_array(a).map(Boolean).join(", ")+")"},"mat":function(a,b){var c=[0,1,2, +3].slice(0,N).map(function(b){return a[b]}).map(function(a){return GLM.$toFixedString("\t",a,a.$components,b&&b.precision)});return a.$type_name+"(\n"+c.join(", \n")+"\n)"},quat:function(a,b){a=GLM.degrees(GLM.eulerAngles(a));return GLM.$toFixedString(""+a.$type_name,a,["x","y","z"],b&&b.precision)}}}).$to_string; +GLM.$template["declare"]({copy:{$op:"=","vec,vec":function(a,b){a.elements.set(b.elements);return a},"vec,array":function(a,b){a.elements.set(b);return a},"vec,uvec":function(a,b){a.elements.set(b.elements);return a},"vec,ivec":function(a,b){a.elements.set(b.elements);return a},"vec,bvec":function(a,b){a.elements.set(b.elements);return a},"uvec,uvec":function(a,b){a.elements.set(b.elements);return a},"uvec,array":function(a,b){a.elements.set(b);return a}, +"uvec,vec":function(a,b){a.elements.set(b.elements);return a},"uvec,ivec":function(a,b){a.elements.set(b.elements);return a},"uvec,bvec":function(a,b){a.elements.set(b.elements);return a},"ivec,ivec":function(a,b){a.elements.set(b.elements);return a},"ivec,array":function(a,b){a.elements.set(b);return a},"ivec,vec":function(a,b){a.elements.set(b.elements);return a},"ivec,uvec":function(a,b){a.elements.set(b.elements);return a},"ivec,bvec":function(a, +b){a.elements.set(b.elements);return a},"bvec,ivec":function(a,b){a.elements.set(b.elements);return a},"bvec,array":function(a,b){a.elements.set(b);return a},"bvec,vec":function(a,b){a.elements.set(b.elements);return a},"bvec,uvec":function(a,b){a.elements.set(b.elements);return a},"bvec,bvec":function(a,b){a.elements.set(b.elements);return a},"quat,quat":function(a,b){a.elements.set(b.elements);return a},"mat,mat":function(a,b){a.elements.set(b.elements);return a}, +"mat,array":function(a,b){b=b.reduce(function(a,b){if(!a.concat)throw new GLM.GLMJSError("matN,arrayN -- [[.length===4] x 4] expected");return a.concat(b)});if(b===N)throw new GLM.GLMJSError("matN,arrayN -- [[N],[N],[N],[N]] expected");return a["="](b)},"mat,array":function(a,b){a.elements.set(b);return a},"mat4,array9":function(a,b){a.elements.set((new GLM.mat4(b)).elements);return a}},sub:{$op:"-",_sub:function(a,b){return this.GLM.$to_array(a).map(function(a,e){return a-b[e]})},"vec,vec":function(a, +b){return new this.GLM.vecN(this._sub(a,b))},"vec,uvec":function(a,b){return new this.GLM.vecN(this._sub(a,b))},"uvec,uvec":function(a,b){return new this.GLM.uvecN(this._sub(a,b))},"uvec,ivec":function(a,b){return new this.GLM.uvecN(this._sub(a,b))},"vec,ivec":function(a,b){return new this.GLM.vecN(this._sub(a,b))},"ivec,uvec":function(a,b){return new this.GLM.ivecN(this._sub(a,b))},"ivec,ivec":function(a,b){return new this.GLM.ivecN(this._sub(a,b))}},sub_eq:{$op:"-=", +"vec,vec":function(a,b){for(var c=a.elements,e=b.elements,d=0;d,uvec":function(a,b){return this["vecN,vecN"](a,b)},"uvec,uvec":function(a,b){return this["vecN,vecN"](a,b)},"uvec,ivec":function(a,b){return this["vecN,vecN"](a,b)},"vec,ivec":function(a,b){return this["vecN,vecN"](a,b)},"ivec,ivec":function(a,b){return this["vecN,vecN"](a,b)},"ivec,uvec":function(a,b){return this["vecN,vecN"](a,b)}},add:{$op:"+",_add:function(a, +b){return this.GLM.$to_array(a).map(function(a,e){return a+b[e]})},"vec,float":function(a,b){return new this.GLM.vecN(this._add(a,[b,b,b,b]))},"vec,vec":function(a,b){return new this.GLM.vecN(this._add(a,b))},"vec,uvec":function(a,b){return new this.GLM.vecN(this._add(a,b))},"uvec,uvec":function(a,b){return new this.GLM.uvecN(this._add(a,b))},"uvec,ivec":function(a,b){return new this.GLM.uvecN(this._add(a,b))},"vec,ivec":function(a,b){return new this.GLM.vecN(this._add(a, +b))},"ivec,ivec":function(a,b){return new this.GLM.ivecN(this._add(a,b))},"ivec,uvec":function(a,b){return new this.GLM.ivecN(this._add(a,b))}},add_eq:{$op:"+=","vec,vec":function(a,b){for(var c=a.elements,e=b.elements,d=0;d,uvec":function(a,b){return this["vecN,vecN"](a,b)},"uvec,uvec":function(a,b){return this["vecN,vecN"](a,b)},"uvec,ivec":function(a,b){return this["vecN,vecN"](a,b)},"vec,ivec":function(a,b){return this["vecN,vecN"](a, +b)},"ivec,ivec":function(a,b){return this["vecN,vecN"](a,b)},"ivec,uvec":function(a,b){return this["vecN,vecN"](a,b)}},div:{$op:"/","vec,float":function(a,b){return new this.GLM.vecN(this.GLM.$to_array(a).map(function(a){return a/b}))}},div_eq:{$op:"/=","vec,float":function(a,b){for(var c=0;c,vec":function(a,b){return new this.GLM.vecN(this.GLM.$to_array(a).map(function(a,e){return a*b[e]}))}},eql_epsilon:function(a){return{$op:"~=", +"vec,vec":a,"mat,mat":a,"quat,quat":a,"uvec,uvec":a,"ivec,ivec":a}}(function(a,b){return this.GLM.all(this.GLM.epsilonEqual(a,b,this.GLM.epsilon()))}),eql:function(a){return{$op:"==","mat,mat":function(a,c){return c.elements.length===glm.$to_array(a).filter(function(a,b){return a===c.elements[b]}).length},"vec,vec":a,"quat,quat":a,"uvec,uvec":a,"ivec,ivec":a,"bvec,bvec":a}}(function(a,b){return GLM.all(GLM.equal(a,b))})}); +GLM.string={$type_name:"string",$:{}};GLM.number={$type_name:"float",$:{}};GLM["boolean"]={$type:"bool",$type_name:"bool",$:{}}; +GLM.vec2=GLM.$template.GLMType("vec2",{name:"fvec2",identity:[0,0],components:["xy","01"],undefined0:function(){return this.identity},number1:function(a){return[a,a]},number2:function(a,b){return[a,b]},object1:function(a){if(null!==a)switch(a.length){case 4:case 3:case 2:return[a[0],a[1]];default:if("y"in a&&"x"in a){if(typeof a.x!==typeof a.y)throw new GLM.GLMJSError("unrecognized .x-ish object passed to GLM.vec2: "+a);return"string"===typeof a.x?[1*a.x,1*a.y]:[a.x,a.y]}}throw new GLM.GLMJSError("unrecognized object passed to GLM.vec2: "+ +a);}}); +GLM.uvec2=GLM.$template.GLMType("uvec2",{name:"uvec2",identity:[0,0],components:["xy","01"],_clamp:function(a){return~~a},undefined0:function(){return this.identity},number1:function(a){a=this._clamp(a);return[a,a]},number2:function(a,b){a=this._clamp(a);b=this._clamp(b);return[a,b]},object1:function(a){switch(a.length){case 4:case 3:case 2:return[a[0],a[1]].map(this._clamp);default:if("y"in a&&"x"in a){if(typeof a.x!==typeof a.y)throw new GLM.GLMJSError("unrecognized .x-ish object passed to GLM."+this.name+ +": "+a);return[a.x,a.y].map(this._clamp)}}throw new GLM.GLMJSError("unrecognized object passed to GLM."+this.name+": "+a);}}); +GLM.vec3=GLM.$template.GLMType("vec3",{name:"fvec3",identity:[0,0,0],components:["xyz","012","rgb"],undefined0:function(){return GLM.vec3.$.identity},number1:function(a){return[a,a,a]},number2:function(a,b){return[a,b,b]},number3:function(a,b,c){return[a,b,c]},Error:GLM.GLMJSError,object1:function(a){if(a)switch(a.length){case 4:case 3:return[a[0],a[1],a[2]];case 2:return[a[0],a[1],a[1]];default:if("z"in a&&"x"in a){if(typeof a.x!==typeof a.y)throw new this.Error("unrecognized .x-ish object passed to GLM.vec3: "+ +a);return"string"===typeof a.x?[1*a.x,1*a.y,1*a.z]:[a.x,a.y,a.z]}}throw new this.Error("unrecognized object passed to GLM.vec3: "+a);},object2:function(a,b){if(a instanceof GLM.vec2||a instanceof GLM.uvec2||a instanceof GLM.ivec2||a instanceof GLM.bvec2)return[a.x,a.y,b];throw new GLM.GLMJSError("unrecognized object passed to GLM.vec3(o,z): "+[a,b]);}}); +GLM.uvec3=GLM.$template.GLMType("uvec3",{name:"uvec3",identity:[0,0,0],components:["xyz","012"],_clamp:GLM.uvec2.$._clamp,undefined0:function(){return this.identity},number1:function(a){a=this._clamp(a);return[a,a,a]},number2:function(a,b){a=this._clamp(a);b=this._clamp(b);return[a,b,b]},number3:function(a,b,c){a=this._clamp(a);b=this._clamp(b);c=this._clamp(c);return[a,b,c]},object1:function(a){if(a)switch(a.length){case 4:case 3:return[a[0],a[1],a[2]].map(this._clamp);case 2:return[a[0],a[1],a[1]].map(this._clamp); 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+DLL.statics={$outer:GLM.$outer,$typeArray:function(a){return new this.$outer.Float32Array(a)},$mat4:GLM.mat4,$quat:GLM.quat,$mat4$perspective:GLMAT.mat4.perspective,$mat4$ortho:GLMAT.mat4.ortho,mat4_perspective:function(a,b,c,e){return new this.$mat4(this.$mat4$perspective(this.$typeArray(16),a,b,c,e))},mat4_ortho:function(a,b,c,e,d,h){return new this.$mat4(this.$mat4$ortho(this.$typeArray(16),a,b,c,e,d||-1,h||1))},$quat$setAxisAngle:GLMAT.quat.setAxisAngle,$mat4$fromQuat:GLMAT.mat4.fromQuat,mat4_angleAxis:function(a, +b){var c=this.$quat$setAxisAngle(this.$typeArray(4),b,a);return new this.$mat4(this.$mat4$fromQuat(this.$typeArray(16),c))},quat_angleAxis:function(a,b){return new this.$quat(this.$quat$setAxisAngle(this.$typeArray(4),b,a))},$mat4$translate:GLMAT.mat4.translate,mat4_translation:function(a){var b=new this.$mat4;this.$mat4$translate(b.elements,b.elements,a.elements);return b},$mat4$scale:GLMAT.mat4.scale,mat4_scale:function(a){var b=new this.$mat4;this.$mat4$scale(b.elements,b.elements,a.elements); +return b},toJSON:function(){var a={},b;for(b in this)0!==b.indexOf("$")&&(a[b]=this[b]);return a},$vec3:GLM.vec3,$clamp:GLM.clamp,mat4_array_from_quat:function(a){return this.$mat4$fromQuat(this.$typeArray(16),a.elements)},$qtmp:new GLM.$outer.Float32Array(9),$quat$fromMat3:GLMAT.quat.fromMat3,$mat3$fromMat4:GLMAT.mat3.fromMat4,quat_array_from_mat4:function(a){return this.$quat$fromMat3(this.$typeArray(4),this.$mat3$fromMat4(this.$qtmp,a.elements))}}; +DLL["declare"]={mul:{$op:"*",$typeArray:function(a){return new this.GLM.$outer.Float32Array(a)},$vec3$transformQuat:GLMAT.vec3.transformQuat,"quat,vec3":function(a,b){return new this.GLM.vec3(this.$vec3$transformQuat(this.$typeArray(3),b.elements,a.elements))},"vec3,quat":function(a,b){return this["quat,vec3"](this.GLM.inverse(b),a)},"quat,vec4":function(a,b){return this["mat4,vec4"](this.GLM.toMat4(a),b)},"vec4,quat":function(a,b){return this["quat,vec4"](this.GLM.inverse(b),a)},"$vec$scale":"GLMAT.vecN.scale", +"vec,float":function(a,b){return new this.GLM.vecN(this.$vecN$scale(this.$typeArray(N),a.elements,b))},"quat,float":function(a,b){return new a.constructor(this["vec4,float"](a,b).elements)},$vec4$transformMat4:GLMAT.vec4.transformMat4,"mat4,vec4":function(a,b){return new GLM.vec4(this.$vec4$transformMat4(this.$typeArray(4),b.elements,a.elements))},"vec4,mat4":function(a,b){return this["mat4,vec4"](GLM.inverse(b),a)},"$matmul":"GLMAT.matN.mul","mat,mat":function(a,b){return new a.constructor(this.$matNmul(this.$typeArray(N* +N),a.elements,b.elements))},$quat$multiply:GLMAT.quat.multiply,"quat,quat":function(a,b){return new a.constructor(this.$quat$multiply(this.$typeArray(4),a.elements,b.elements))}},mul_eq:{$op:"*=","$mat$multiply":"GLMAT.matN.multiply","mat,mat":function(a,b){this.$matN$multiply(a.elements,a.elements,b.elements);return a},"$vec$scale":"GLMAT.vecN.scale","vec,float":function(a,b){this.$vecN$scale(a.elements,a.elements,b);return a},$quat$multiply:GLMAT.quat.multiply,"quat,quat":function(a, +b){this.$quat$multiply(a.elements,a.elements,b.elements);return a},$quat$invert:GLMAT.quat.invert,$vec3$transformQuat:GLMAT.vec3.transformQuat,"inplace:vec3,quat":function(a,b){var c=this.$quat$invert(new this.GLM.$outer.Float32Array(4),b.elements);this.$vec3$transformQuat(a.elements,a.elements,c);return a},$mat4$invert:GLMAT.mat4.invert,$vec4$transformMat4:GLMAT.vec4.transformMat4,"inplace:vec4,mat4":function(a,b){var c=this.$mat4$invert(new this.GLM.$outer.Float32Array(16),b.elements);this.$vec4$transformMat4(a.elements, +a.elements,c);return a}},cross:{$vec2$cross:GLMAT.vec2.cross,"vec2,vec2":function(a,b){return new this.GLM.vec3(this.$vec2$cross(new this.GLM.$outer.Float32Array(3),a,b))},$vec3$cross:GLMAT.vec3.cross,"vec3,vec3":function(a,b){return new this.GLM.vec3(this.$vec3$cross(new this.GLM.$outer.Float32Array(3),a,b))}},dot:{"$vec$dot":"GLMAT.vecN.dot","vec,vec":function(a,b){return this.$vecN$dot(a,b)}},lookAt:{$mat4$lookAt:GLMAT.mat4.lookAt,"vec3,vec3":function(a,b,c){return new this.GLM.mat4(this.$mat4$lookAt(new this.GLM.$outer.Float32Array(16), +a.elements,b.elements,c.elements))}}};DLL["declare"]={mix:{$quat$slerp:GLMAT.quat.slerp,"quat,quat":function(a,b,c){return new GLM.quat(this.$quat$slerp(new GLM.$outer.Float32Array(4),a.elements,b.elements,c))}}};DLL["declare"].slerp=DLL["declare"].mix; +DLL["declare"]={normalize:{"$vecnormalize":"GLMAT.vecN.normalize",$typeArray:function(a){return new this.GLM.$outer.Float32Array(a)},"vec":function(a){return new this.GLM.vecN(this.$vecNnormalize(this.$typeArray(N),a))},$quat$normalize:GLMAT.quat.normalize,quat:function(a){return new this.GLM.quat(this.$quat$normalize(new this.GLM.$outer.Float32Array(4),a.elements))}},length:{$quat$length:GLMAT.quat.length,quat:function(a){return this.$quat$length(a.elements)},"$vec$length":"GLMAT.vecN.length", +"vec":function(a){return this.$vecN$length(a.elements)}},length2:{$quat$squaredLength:GLMAT.quat.squaredLength,quat:function(a){return this.$quat$squaredLength(a.elements)},"$vec$squaredLength":"GLMAT.vecN.squaredLength","vec":function(a){return this.$vecN$squaredLength(a.elements)}},inverse:{$quatinvert:GLMAT.quat.invert,quat:function(a){return this.GLM.quat(this.$quatinvert(new this.GLM.$outer.Float32Array(4),a.elements))},$mat4invert:GLMAT.mat4.invert,mat4:function(a){a=a.clone();return null=== +this.$mat4invert(a.elements,a.elements)?a["="](this.GLM.mat4()):a}},transpose:{$mat4$transpose:GLMAT.mat4.transpose,mat4:function(a){a=a.clone();this.$mat4$transpose(a.elements,a.elements);return a}}};glm.$outer.$import(DLL);try{module.exports=glm}catch(e$$20){} +function $GLMVector(a,b,c){this.typearray=c=c||GLM.$outer.Float32Array;if(!(this instanceof $GLMVector))throw new GLM.GLMJSError("use new");if("function"!==typeof a||!GLM.$isGLMConstructor(a))throw new GLM.GLMJSError("expecting typ to be GLM.$isGLMConstructor: "+[typeof a,a?a.$type:a]+" // "+GLM.$isGLMConstructor(a));if(1===a.componentLength&&GLM[a.prototype.$type.replace("$","$$v")])throw new GLM.GLMJSError("unsupported argtype to glm.$vectorType - for single-value types use glm."+a.prototype.$type.replace("$", +"$$v")+"..."+a.prototype.$type);this.glmtype=a;if(!this.glmtype.componentLength)throw Error("need .componentLength "+[a,b,c]);this.componentLength=this.glmtype.componentLength;this.BYTES_PER_ELEMENT=this.glmtype.BYTES_PER_ELEMENT;this._set_$elements=function(a){Object.defineProperty(this,"$elements",{enumerable:!1,configurable:!0,value:a});return this.$elements};Object.defineProperty(this,"elements",{enumerable:!0,configurable:!0,get:function(){return this.$elements},set:function(a){this._kv&&!this._kv.dynamic&& +GLM.$DEBUG&&GLM.$outer.console.warn("WARNING: setting .elements on frozen (non-dynamic) GLMVector...");if(a){var b=this.length;this.length=a.length/this.componentLength;this.byteLength=this.length*this.BYTES_PER_ELEMENT;if(this.length!==Math.round(this.length))throw new GLM.GLMJSError("$vectorType.length alignment mismatch "+JSON.stringify({componentLength:this.componentLength,length:this.length,rounded_length:Math.round(this.length),elements_length:a.length,old_length:b}));}else this.length=this.byteLength= +0;return this._set_$elements(a)}});this.elements=b&&new c(b*a.componentLength)}GLM.$vectorType=$GLMVector;GLM.$vectorType.version="0.0.2"; +$GLMVector.prototype=GLM.$template.extend(new GLM.$GLMBaseType($GLMVector,"$vectorType"),{toString:function(){return"[$GLMVector .elements=#"+(this.elements&&this.elements.length)+" .elements[0]="+(this.elements&&this.elements[0])+" ->[0]"+(this["->"]&&this["->"][0])+"]"},"=":function(a){if(a instanceof this.constructor||glm.$isGLMObject(a))a=a.elements;return this._set(new this.typearray(a))},_typed_concat:function(a,b,c){var e=a.length+b.length;c=c||new a.constructor(e);c.set(a);c.set(b,a.length); +return c},"+":function(a){if(a instanceof this.constructor||glm.$isGLMObject(a))a=a.elements;return new this.constructor(this._typed_concat(this.elements,a))},"+=":function(a){if(a instanceof this.constructor||glm.$isGLMObject(a))a=a.elements;return this._set(this._typed_concat(this.elements,a))},_set:function(a){a instanceof this.constructor&&(a=new this.typearray(a.elements));if(!(a instanceof this.typearray))throw new GLM.GLMJSError("unsupported argtype to $GLMVector._set "+(a&&a.constructor)); +GLM.$DEBUG&&GLM.$outer.console.debug("$GLMVector.prototype.set...this.elements:"+[this.elements&&this.elements.constructor.name,this.elements&&this.elements.length]+"elements:"+[a.constructor.name,a.length]);var b=this._kv;this._kv=void 0;this.elements=a;if(this.elements!==a)throw new GLM.GLMJSError("err with .elements: "+[this.glmtype.prototype.$type,this.elements,a]);b&&this._setup(b);return this},arrayize:function(a,b){return this._setup({dynamic:b,setters:a},this.length)},$destroy:function(a){if(a){for(var b= +Array.isArray(a),c=function(c){Object.defineProperty(a,c,{enumerable:!0,configurable:!0,value:void 0});delete a[c];b||(a[c]=void 0,delete a[c])},e=0;e"]=k;Array.isArray(r)||this._mixinArray(r);var m=this.componentLength;if(!m)throw new GLM.GLMJSError("no componentLength!?"+ +Object.keys(this));for(var q=g.buffer.byteLength,s=this,t=0;tq)throw Error("["+t+"] off "+k+" > last "+q+" "+y());if(z>q)throw Error("["+t+"] next "+z+" > last "+q+" "+y());r[t]=null;var f=function(a,b){var d=new c(new e(a.buffer,b,m));w&&Object.defineProperty(d,"$elements",{value:a});return d},y=f(g,k);!i&&!w?r[t]=y:function(a,b,c){Object.defineProperty(r, +b,{enumerable:!0,configurable:!0,get:w?function(){a.$elements!==s.elements&&(GLM.$log("dynoget rebinding ti",b,c,a.$elements===s.elements),a=f(s.elements,c));return a}:function(){return a},set:i&&(w?function(d){GLM.$log("dynoset",b,c,a.$elements===s.elements);a.$elements!==s.elements&&(GLM.$log("dynoset rebinding ti",b,c,a.$elements===s.elements),a=f(s.elements,c));return a.copy(d)}:function(b){return a.copy(b)})||void 0})}(y,t,k)}return this},setFromBuffers:function(a){var b=this.elements,c=0;a.forEach(function(a){var d= +a.length;if(c+d>b.length){d=Math.min(b.length-c,a.length);if(0>=d)return;a=glm.$subarray(a,0,d);d=a.length}if(c+d>b.length)throw new glm.GLMJSError("$vectorType.fromBuffers mismatch "+[c,d,b.length]);b.set(a,c);c+=a.length});return c},setFromPointer:function(a){if(!(a instanceof GLM.$outer.ArrayBuffer))throw new glm.GLMJSError("unsupported argtype "+[typeof a]+" - $GLMVector.setFromPointer");return this._set(new this.typearray(a))}});GLM.exists;GLM.$vectorType.exists; +if(GLM.$toTypedArray)throw"error: glm.experimental.js double-included"; +GLM.$toTypedArray=function(a,b,c){var e=b||0,d=typeof e;if("number"===d){if("number"!==typeof c)throw new GLM.GLMJSError("GLM.$toTypedArray: unsupported argtype for componentLength ("+typeof c+")");return new a(e*c)}if("object"!==d)throw new GLM.GLMJSError("GLM.$toTypedArray: unsupported arrayType: "+[typeof a,a]);if(e instanceof a)return e;if(e instanceof GLM.$outer.ArrayBuffer||Array.isArray(e))return new a(e);GLM.$isGLMObject(e)&&(d=e.elements,e=new a(d.length),e.set(d));if(!(e instanceof a)&& +"byteOffset"in e&&"buffer"in e)return GLM.$DEBUG&&GLM.$outer.console.warn("coercing "+e.constructor.name+".buffer into "+[a.name,e.byteOffset,e.byteLength+" bytes","~"+e.byteLength/a.BYTES_PER_ELEMENT+" coerced elements"]+"...",{byteOffset:e.byteOffset,byteLength:e.byteLength,ecount:e.byteLength/a.BYTES_PER_ELEMENT}),new a(e.buffer,e.byteOffset,e.byteLength/a.BYTES_PER_ELEMENT);if(e instanceof a)return e;throw new GLM.GLMJSError("GLM.$toTypedArray: unsupported argtype initializers: "+[a,b,c]);}; +GLM.$make_primitive=function(a,b){GLM[a]=function(c){if(!(this instanceof GLM[a]))return new GLM[a](c);"object"!==typeof c&&(c=[c]);this.elements=GLM.$toTypedArray(b,c,1)};GLM[a]=eval(GLM.$template._traceable("glm_"+a+"$class",GLM[a]))();GLM.$template._add_overrides(a,{$to_string:function(a){return a.$type.replace(/[^a-z]/g,"")+"("+a.elements[0]+")"},$to_object:function(a){return a.elements[0]},$to_glsl:function(a){return a.$type.replace(/[^a-z]/g,"")+"("+a.elements[0]+")"}});GLM.$template._add_overrides(a.substr(1), +{$to_string:!(a.substr(1)in GLM.$to_string.$template)&&function(a){return a.$type.replace(/[^a-z]/g,"")+"("+a.elements[0]+")"},$to_object:function(a){return a},$to_glsl:function(a){return a.$type.replace(/[^a-z]/g,"")+"("+a+")"}});GLM.$template.extend(GLM[a],{componentLength:1,BYTES_PER_ELEMENT:b.BYTES_PER_ELEMENT,prototype:GLM.$template.extend(new GLM.$GLMBaseType(GLM[a],a),{copy:function(a){this.elements.set(GLM.$isGLMObject(a)?a.elements:[a]);return this},valueOf:function(){return this.elements[0]}})}); +GLM[a].prototype["="]=GLM[a].prototype.copy;return GLM[a]};GLM.$make_primitive("$bool",GLM.$outer.Int32Array);GLM.$template._add_overrides("$bool",{$to_object:function(a){return!!a}});GLM.$make_primitive("$int32",GLM.$outer.Int32Array);GLM.$make_primitive("$uint32",GLM.$outer.Uint32Array);GLM.$make_primitive("$uint16",GLM.$outer.Uint16Array);GLM.$make_primitive("$uint8",GLM.$outer.Uint8Array);GLM.$float32=GLM.$make_primitive("$float",GLM.$outer.Float32Array); +GLM.$make_primitive_vector=function(a,b,c){c=c||(new b).elements.constructor;var e=function(d){if(!(this instanceof e))return new e(d);this.$type=a;this.$type_name="vector<"+a+">";(d=GLM.$toTypedArray(c,d,b.componentLength))&&this._set(d)},e=eval(GLM.$template._traceable("glm_"+a+"$class",e))();e.prototype=new GLM.$vectorType(b,0,c);GLM.$template._add_overrides(a,{$to_string:function(a){return"[GLM."+a.$type+" elements[0]="+(a.elements&&a.elements[0])+"]"},$to_object:function(a){return a.map(GLM.$to_object)}, +$to_glsl:function(a,b){var c=a.$type.substr(2).replace(/[^a-z]/g,"");b="string"===typeof b?b:"example";var e=[];b&&e.push(c+" "+b+"["+a.length+"]");return e.concat(a.map(function(a,c){return b+"["+c+"] = "+a})).join(";")+";"}});GLM.$types.push(a);GLM.$template.extend(e.prototype,{$type:a,constructor:e,_setup:function(){throw new GLM.GLMJSError("._setup not available on primitive vectors yet...");},_set:function(a){this.elements=a;this.length=!this.elements?0:this.elements.length/this.glmtype.componentLength; +this.arrayize();return this},arrayize:function(){for(var a=Object.defineProperty.bind(Object,this),b=0;b {"+[].slice.call(this.elements,0,5)+(5":function(){return GLM.$make_componentized_vector("$vvecN",GLM.vecN)},"$vuvec":function(){return GLM.$make_componentized_vector("$vuvecN",GLM.uvecN)},"$vmat":function(){return GLM.$make_componentized_vector("$vmatN",GLM.matN)},$vquat:function(){return GLM.$make_componentized_vector("$vquat",GLM.quat)}},"$v"),b;for(b in a)GLM[b]=a[b]()})(); +(GLM._redefine_base64_helpers=function define_base64_helpers(b,c){function e(b){return(b+"").replace(/\s/g,"")}function d(b){return new k(b.split("").map(function(b){return b.charCodeAt(0)}))}function h(b){b instanceof k||(b=new k(b));return[].map.call(b,function(b){return String.fromCharCode(b)}).join("")}function j(b){b=b instanceof i?b:d(b).buffer;return GLM.$b64.encode(b,b.byteOffset,b.byteLength)}function g(b){b=new String(h(GLM.$b64.decode(b)));b.array=d(b);b.buffer=b.array.buffer;return b} +b=define_base64_helpers.atob=b||define_base64_helpers.atob||g;c=define_base64_helpers.btoa=c||define_base64_helpers.btoa||j;var k=GLM.$outer.Uint8Array,i=GLM.$outer.ArrayBuffer,w,r="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/".indexOf.bind("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/");w={encode:function(b,c,d){b=new k(b,c,d);d=b.length;var e="";for(c=0;c>2],e+="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"[(b[c]& +3)<<4|b[c+1]>>4],e+="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"[(b[c+1]&15)<<2|b[c+2]>>6],e+="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"[b[c+2]&63];2===d%3?e=e.substring(0,e.length-1)+"=":1===d%3&&(e=e.substring(0,e.length-2)+"==");return e},decode:function(b){b=e(b);var c=b.length,d=0.75*c,g=0,h,j,f,v;"="===b[c-1]&&(d--,"="===b[c-2]&&d--);for(var w=new i(d),R=new k(w),d=0;d>4,R[g++]= +(j&15)<<4|f>>2,R[g++]=(f&3)<<6|v&63;return w}};GLM.$template.extend(w,{trim:e,atob:b,btoa:c,$atob:g,$btoa:j,toCharCodes:d,fromCharCodes:h,b64_to_utf8:function(c){return decodeURIComponent(escape(b(e(c))))},utf8_to_b64:function(b){return c(unescape(encodeURIComponent(b)))}});GLM.$template.extend(GLM,{$b64:w,$to_base64:function(b){return GLM.$b64.encode(b.elements.buffer,b.elements.byteOffset,b.elements.byteLength)},$from_base64:function(b,c){var d=GLM.$b64.decode(b);if(!0===c||c==GLM.$outer.ArrayBuffer)return d; +void 0===c&&(c=GLM.$outer.Float32Array);return new c(d);throw new GLM.GLMJSError("TODO: $from_base64 not yet supported second argument type: ("+[typeof c,c]+")");}})})("function"===typeof atob&&atob.bind(this),"function"===typeof btoa&&btoa.bind(this)); +(function(){function a(a,c){return{get:function(){return a.call(this)},set:function(a){if(this.copy)return this.copy(new this.constructor(c.call(this,a)));this.elements.set(c.call(this,a))}}}"$bool $float32 $vfloat32 $vuint8 $vuint16 $vuint32 $vvec2 $vvec3 $vvec4 $vmat3 $vmat4 $vquat vec2 vec3 vec4 mat3 mat4 uvec2 uvec3 uvec4 ivec2 ivec3 ivec4 bvec2 bvec3 bvec4 quat".split(" ").map(GLM.$getGLMType).forEach(function(b){Object.defineProperty(b.prototype,"array",a(function(){return GLM.$to_array(this)}, +function(a){return a}));Object.defineProperty(b.prototype,"base64",a(function(){return GLM.$to_base64(this)},function(a){return GLM.$from_base64(a,this.elements.constructor)}));Object.defineProperty(b.prototype,"buffer",a(function(){return this.elements.buffer},function(a){return new this.elements.constructor(a)}));Object.defineProperty(b.prototype,"json",a(function(){return GLM.$to_json(this)},function(a){return JSON.parse(a)}));Object.defineProperty(b.prototype,"object",a(function(){return GLM.$to_object(this)}, +function(a){return a}));Object.defineProperty(b.prototype,"glsl",a(function(){return GLM.$to_glsl(this)},function(a){return GLM.$from_glsl(a,Array)}))})})(); +glm.GLMAT = GLMAT; globals.glm = glm; try { module.exports = glm; } catch(e) { }; try { window.glm = glm; } catch(e) {} ; try { declare.amd && declare(function() { return glm; }); } catch(e) {}; return this.glm = glm; })(this, typeof $GLM_log !== "undefined" ? $GLM_log : undefined, typeof $GLM_console_log !== "undefined" ? $GLM_console_log : undefined); + +/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(3))) + +/***/ }), +/* 24 */ +/***/ (function(module, exports, __webpack_require__) { + +var __WEBPACK_AMD_DEFINE_ARRAY__, __WEBPACK_AMD_DEFINE_RESULT__;/*! + * jQuery JavaScript Library v3.2.1 + * https://jquery.com/ + * + * Includes Sizzle.js + * https://sizzlejs.com/ + * + * Copyright JS Foundation and other contributors + * Released under the MIT license + * https://jquery.org/license + * + * Date: 2017-03-20T18:59Z + */ +( function( global, factory ) { + + "use strict"; + + if ( typeof module === "object" && typeof module.exports === "object" ) { + + // For CommonJS and CommonJS-like environments where a proper `window` + // is present, execute the factory and get jQuery. + // For environments that do not have a `window` with a `document` + // (such as Node.js), expose a factory as module.exports. + // This accentuates the need for the creation of a real `window`. + // e.g. var jQuery = require("jquery")(window); + // See ticket #14549 for more info. + module.exports = global.document ? + factory( global, true ) : + function( w ) { + if ( !w.document ) { + throw new Error( "jQuery requires a window with a document" ); + } + return factory( w ); + }; + } else { + factory( global ); + } + +// Pass this if window is not defined yet +} )( typeof window !== "undefined" ? window : this, function( window, noGlobal ) { + +// Edge <= 12 - 13+, Firefox <=18 - 45+, IE 10 - 11, Safari 5.1 - 9+, iOS 6 - 9.1 +// throw exceptions when non-strict code (e.g., ASP.NET 4.5) accesses strict mode +// arguments.callee.caller (trac-13335). But as of jQuery 3.0 (2016), strict mode should be common +// enough that all such attempts are guarded in a try block. +"use strict"; + +var arr = []; + +var document = window.document; + +var getProto = Object.getPrototypeOf; + +var slice = arr.slice; + +var concat = arr.concat; + +var push = arr.push; + +var indexOf = arr.indexOf; + +var class2type = {}; + +var toString = class2type.toString; + +var hasOwn = class2type.hasOwnProperty; + +var fnToString = hasOwn.toString; + +var ObjectFunctionString = fnToString.call( Object ); + +var support = {}; + + + + function DOMEval( code, doc ) { + doc = doc || document; + + var script = doc.createElement( "script" ); + + script.text = code; + doc.head.appendChild( script ).parentNode.removeChild( script ); + } +/* global Symbol */ +// Defining this global in .eslintrc.json would create a danger of using the global +// unguarded in another place, it seems safer to define global only for this module + + + +var + version = "3.2.1", + + // Define a local copy of jQuery + jQuery = function( selector, context ) { + + // The jQuery object is actually just the init constructor 'enhanced' + // Need init if jQuery is called (just allow error to be thrown if not included) + return new jQuery.fn.init( selector, context ); + }, + + // Support: Android <=4.0 only + // Make sure we trim BOM and NBSP + rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g, + + // Matches dashed string for camelizing + rmsPrefix = /^-ms-/, + rdashAlpha = /-([a-z])/g, + + // Used by jQuery.camelCase as callback to replace() + fcamelCase = function( all, letter ) { + return letter.toUpperCase(); + }; + +jQuery.fn = jQuery.prototype = { + + // The current version of jQuery being used + jquery: version, + + constructor: jQuery, + + // The default length of a jQuery object is 0 + length: 0, + + toArray: function() { + return slice.call( this ); + }, + + // Get the Nth element in the matched element set OR + // Get the whole matched element set as a clean array + get: function( num ) { + + // Return all the elements in a clean array + if ( num == null ) { + return slice.call( this ); + } + + // Return just the one element from the set + return num < 0 ? this[ num + this.length ] : this[ num ]; + }, + + // Take an array of elements and push it onto the stack + // (returning the new matched element set) + pushStack: function( elems ) { + + // Build a new jQuery matched element set + var ret = jQuery.merge( this.constructor(), elems ); + + // Add the old object onto the stack (as a reference) + ret.prevObject = this; + + // Return the newly-formed element set + return ret; + }, + + // Execute a callback for every element in the matched set. + each: function( callback ) { + return jQuery.each( this, callback ); + }, + + map: function( callback ) { + return this.pushStack( jQuery.map( this, function( elem, i ) { + return callback.call( elem, i, elem ); + } ) ); + }, + + slice: function() { + return this.pushStack( slice.apply( this, arguments ) ); + }, + + first: function() { + return this.eq( 0 ); + }, + + last: function() { + return this.eq( -1 ); + }, + + eq: function( i ) { + var len = this.length, + j = +i + ( i < 0 ? len : 0 ); + return this.pushStack( j >= 0 && j < len ? [ this[ j ] ] : [] ); + }, + + end: function() { + return this.prevObject || this.constructor(); + }, + + // For internal use only. + // Behaves like an Array's method, not like a jQuery method. + push: push, + sort: arr.sort, + splice: arr.splice +}; + +jQuery.extend = jQuery.fn.extend = function() { + var options, name, src, copy, copyIsArray, clone, + target = arguments[ 0 ] || {}, + i = 1, + length = arguments.length, + deep = false; + + // Handle a deep copy situation + if ( typeof target === "boolean" ) { + deep = target; + + // Skip the boolean and the target + target = arguments[ i ] || {}; + i++; + } + + // Handle case when target is a string or something (possible in deep copy) + if ( typeof target !== "object" && !jQuery.isFunction( target ) ) { + target = {}; + } + + // Extend jQuery itself if only one argument is passed + if ( i === length ) { + target = this; + i--; + } + + for ( ; i < length; i++ ) { + + // Only deal with non-null/undefined values + if ( ( options = arguments[ i ] ) != null ) { + + // Extend the base object + for ( name in options ) { + src = target[ name ]; + copy = options[ name ]; + + // Prevent never-ending loop + if ( target === copy ) { + continue; + } + + // Recurse if we're merging plain objects or arrays + if ( deep && copy && ( jQuery.isPlainObject( copy ) || + ( copyIsArray = Array.isArray( copy ) ) ) ) { + + if ( copyIsArray ) { + copyIsArray = false; + clone = src && Array.isArray( src ) ? src : []; + + } else { + clone = src && jQuery.isPlainObject( src ) ? src : {}; + } + + // Never move original objects, clone them + target[ name ] = jQuery.extend( deep, clone, copy ); + + // Don't bring in undefined values + } else if ( copy !== undefined ) { + target[ name ] = copy; + } + } + } + } + + // Return the modified object + return target; +}; + +jQuery.extend( { + + // Unique for each copy of jQuery on the page + expando: "jQuery" + ( version + Math.random() ).replace( /\D/g, "" ), + + // Assume jQuery is ready without the ready module + isReady: true, + + error: function( msg ) { + throw new Error( msg ); + }, + + noop: function() {}, + + isFunction: function( obj ) { + return jQuery.type( obj ) === "function"; + }, + + isWindow: function( obj ) { + return obj != null && obj === obj.window; + }, + + isNumeric: function( obj ) { + + // As of jQuery 3.0, isNumeric is limited to + // strings and numbers (primitives or objects) + // that can be coerced to finite numbers (gh-2662) + var type = jQuery.type( obj ); + return ( type === "number" || type === "string" ) && + + // parseFloat NaNs numeric-cast false positives ("") + // ...but misinterprets leading-number strings, particularly hex literals ("0x...") + // subtraction forces infinities to NaN + !isNaN( obj - parseFloat( obj ) ); + }, + + isPlainObject: function( obj ) { + var proto, Ctor; + + // Detect obvious negatives + // Use toString instead of jQuery.type to catch host objects + if ( !obj || toString.call( obj ) !== "[object Object]" ) { + return false; + } + + proto = getProto( obj ); + + // Objects with no prototype (e.g., `Object.create( null )`) are plain + if ( !proto ) { + return true; + } + + // Objects with prototype are plain iff they were constructed by a global Object function + Ctor = hasOwn.call( proto, "constructor" ) && proto.constructor; + return typeof Ctor === "function" && fnToString.call( Ctor ) === ObjectFunctionString; + }, + + isEmptyObject: function( obj ) { + + /* eslint-disable no-unused-vars */ + // See https://github.com/eslint/eslint/issues/6125 + var name; + + for ( name in obj ) { + return false; + } + return true; + }, + + type: function( obj ) { + if ( obj == null ) { + return obj + ""; + } + + // Support: Android <=2.3 only (functionish RegExp) + return typeof obj === "object" || typeof obj === "function" ? + class2type[ toString.call( obj ) ] || "object" : + typeof obj; + }, + + // Evaluates a script in a global context + globalEval: function( code ) { + DOMEval( code ); + }, + + // Convert dashed to camelCase; used by the css and data modules + // Support: IE <=9 - 11, Edge 12 - 13 + // Microsoft forgot to hump their vendor prefix (#9572) + camelCase: function( string ) { + return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase ); + }, + + each: function( obj, callback ) { + var length, i = 0; + + if ( isArrayLike( obj ) ) { + length = obj.length; + for ( ; i < length; i++ ) { + if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) { + break; + } + } + } else { + for ( i in obj ) { + if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) { + break; + } + } + } + + return obj; + }, + + // Support: Android <=4.0 only + trim: function( text ) { + return text == null ? + "" : + ( text + "" ).replace( rtrim, "" ); + }, + + // results is for internal usage only + makeArray: function( arr, results ) { + var ret = results || []; + + if ( arr != null ) { + if ( isArrayLike( Object( arr ) ) ) { + jQuery.merge( ret, + typeof arr === "string" ? + [ arr ] : arr + ); + } else { + push.call( ret, arr ); + } + } + + return ret; + }, + + inArray: function( elem, arr, i ) { + return arr == null ? -1 : indexOf.call( arr, elem, i ); + }, + + // Support: Android <=4.0 only, PhantomJS 1 only + // push.apply(_, arraylike) throws on ancient WebKit + merge: function( first, second ) { + var len = +second.length, + j = 0, + i = first.length; + + for ( ; j < len; j++ ) { + first[ i++ ] = second[ j ]; + } + + first.length = i; + + return first; + }, + + grep: function( elems, callback, invert ) { + var callbackInverse, + matches = [], + i = 0, + length = elems.length, + callbackExpect = !invert; + + // Go through the array, only saving the items + // that pass the validator function + for ( ; i < length; i++ ) { + callbackInverse = !callback( elems[ i ], i ); + if ( callbackInverse !== callbackExpect ) { + matches.push( elems[ i ] ); + } + } + + return matches; + }, + + // arg is for internal usage only + map: function( elems, callback, arg ) { + var length, value, + i = 0, + ret = []; + + // Go through the array, translating each of the items to their new values + if ( isArrayLike( elems ) ) { + length = elems.length; + for ( ; i < length; i++ ) { + value = callback( elems[ i ], i, arg ); + + if ( value != null ) { + ret.push( value ); + } + } + + // Go through every key on the object, + } else { + for ( i in elems ) { + value = callback( elems[ i ], i, arg ); + + if ( value != null ) { + ret.push( value ); + } + } + } + + // Flatten any nested arrays + return concat.apply( [], ret ); + }, + + // A global GUID counter for objects + guid: 1, + + // Bind a function to a context, optionally partially applying any + // arguments. + proxy: function( fn, context ) { + var tmp, args, proxy; + + if ( typeof context === "string" ) { + tmp = fn[ context ]; + context = fn; + fn = tmp; + } + + // Quick check to determine if target is callable, in the spec + // this throws a TypeError, but we will just return undefined. + if ( !jQuery.isFunction( fn ) ) { + return undefined; + } + + // Simulated bind + args = slice.call( arguments, 2 ); + proxy = function() { + return fn.apply( context || this, args.concat( slice.call( arguments ) ) ); + }; + + // Set the guid of unique handler to the same of original handler, so it can be removed + proxy.guid = fn.guid = fn.guid || jQuery.guid++; + + return proxy; + }, + + now: Date.now, + + // jQuery.support is not used in Core but other projects attach their + // properties to it so it needs to exist. + support: support +} ); + +if ( typeof Symbol === "function" ) { + jQuery.fn[ Symbol.iterator ] = arr[ Symbol.iterator ]; +} + +// Populate the class2type map +jQuery.each( "Boolean Number String Function Array Date RegExp Object Error Symbol".split( " " ), +function( i, name ) { + class2type[ "[object " + name + "]" ] = name.toLowerCase(); +} ); + +function isArrayLike( obj ) { + + // Support: real iOS 8.2 only (not reproducible in simulator) + // `in` check used to prevent JIT error (gh-2145) + // hasOwn isn't used here due to false negatives + // regarding Nodelist length in IE + var length = !!obj && "length" in obj && obj.length, + type = jQuery.type( obj ); + + if ( type === "function" || jQuery.isWindow( obj ) ) { + return false; + } + + return type === "array" || length === 0 || + typeof length === "number" && length > 0 && ( length - 1 ) in obj; +} +var Sizzle = +/*! + * Sizzle CSS Selector Engine v2.3.3 + * https://sizzlejs.com/ + * + * Copyright jQuery Foundation and other contributors + * Released under the MIT license + * http://jquery.org/license + * + * Date: 2016-08-08 + */ +(function( window ) { + +var i, + support, + Expr, + getText, + isXML, + tokenize, + compile, + select, + outermostContext, + sortInput, + hasDuplicate, + + // Local document vars + setDocument, + document, + docElem, + documentIsHTML, + rbuggyQSA, + rbuggyMatches, + matches, + contains, + + // Instance-specific data + expando = "sizzle" + 1 * new Date(), + preferredDoc = window.document, + dirruns = 0, + done = 0, + classCache = createCache(), + tokenCache = createCache(), + compilerCache = createCache(), + sortOrder = function( a, b ) { + if ( a === b ) { + hasDuplicate = true; + } + return 0; + }, + + // Instance methods + hasOwn = ({}).hasOwnProperty, + arr = [], + pop = arr.pop, + push_native = arr.push, + push = arr.push, + slice = arr.slice, + // Use a stripped-down indexOf as it's faster than native + // https://jsperf.com/thor-indexof-vs-for/5 + indexOf = function( list, elem ) { + var i = 0, + len = list.length; + for ( ; i < len; i++ ) { + if ( list[i] === elem ) { + return i; + } + } + return -1; + }, + + booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped", + + // Regular expressions + + // http://www.w3.org/TR/css3-selectors/#whitespace + whitespace = "[\\x20\\t\\r\\n\\f]", + + // http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier + identifier = "(?:\\\\.|[\\w-]|[^\0-\\xa0])+", + + // Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors + attributes = "\\[" + whitespace + "*(" + identifier + ")(?:" + whitespace + + // Operator (capture 2) + "*([*^$|!~]?=)" + whitespace + + // "Attribute values must be CSS identifiers [capture 5] or strings [capture 3 or capture 4]" + "*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" + whitespace + + "*\\]", + + pseudos = ":(" + identifier + ")(?:\\((" + + // To reduce the number of selectors needing tokenize in the preFilter, prefer arguments: + // 1. quoted (capture 3; capture 4 or capture 5) + "('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|" + + // 2. simple (capture 6) + "((?:\\\\.|[^\\\\()[\\]]|" + attributes + ")*)|" + + // 3. anything else (capture 2) + ".*" + + ")\\)|)", + + // Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter + rwhitespace = new RegExp( whitespace + "+", "g" ), + rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "g" ), + + rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ), + rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace + "*" ), + + rattributeQuotes = new RegExp( "=" + whitespace + "*([^\\]'\"]*?)" + whitespace + "*\\]", "g" ), + + rpseudo = new RegExp( pseudos ), + ridentifier = new RegExp( "^" + identifier + "$" ), + + matchExpr = { + "ID": new RegExp( "^#(" + identifier + ")" ), + "CLASS": new RegExp( "^\\.(" + identifier + ")" ), + "TAG": new RegExp( "^(" + identifier + "|[*])" ), + "ATTR": new RegExp( "^" + attributes ), + "PSEUDO": new RegExp( "^" + pseudos ), + "CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + whitespace + + "*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + whitespace + + "*(\\d+)|))" + whitespace + "*\\)|)", "i" ), + "bool": new RegExp( "^(?:" + booleans + ")$", "i" ), + // For use in libraries implementing .is() + // We use this for POS matching in `select` + "needsContext": new RegExp( "^" + whitespace + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" + + whitespace + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" ) + }, + + rinputs = /^(?:input|select|textarea|button)$/i, + rheader = /^h\d$/i, + + rnative = /^[^{]+\{\s*\[native \w/, + + // Easily-parseable/retrievable ID or TAG or CLASS selectors + rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/, + + rsibling = /[+~]/, + + // CSS escapes + // http://www.w3.org/TR/CSS21/syndata.html#escaped-characters + runescape = new RegExp( "\\\\([\\da-f]{1,6}" + whitespace + "?|(" + whitespace + ")|.)", "ig" ), + funescape = function( _, escaped, escapedWhitespace ) { + var high = "0x" + escaped - 0x10000; + // NaN means non-codepoint + // Support: Firefox<24 + // Workaround erroneous numeric interpretation of +"0x" + return high !== high || escapedWhitespace ? + escaped : + high < 0 ? + // BMP codepoint + String.fromCharCode( high + 0x10000 ) : + // Supplemental Plane codepoint (surrogate pair) + String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 ); + }, + + // CSS string/identifier serialization + // https://drafts.csswg.org/cssom/#common-serializing-idioms + rcssescape = /([\0-\x1f\x7f]|^-?\d)|^-$|[^\0-\x1f\x7f-\uFFFF\w-]/g, + fcssescape = function( ch, asCodePoint ) { + if ( asCodePoint ) { + + // U+0000 NULL becomes U+FFFD REPLACEMENT CHARACTER + if ( ch === "\0" ) { + return "\uFFFD"; + } + + // Control characters and (dependent upon position) numbers get escaped as code points + return ch.slice( 0, -1 ) + "\\" + ch.charCodeAt( ch.length - 1 ).toString( 16 ) + " "; + } + + // Other potentially-special ASCII characters get backslash-escaped + return "\\" + ch; + }, + + // Used for iframes + // See setDocument() + // Removing the function wrapper causes a "Permission Denied" + // error in IE + unloadHandler = function() { + setDocument(); + }, + + disabledAncestor = addCombinator( + function( elem ) { + return elem.disabled === true && ("form" in elem || "label" in elem); + }, + { dir: "parentNode", next: "legend" } + ); + +// Optimize for push.apply( _, NodeList ) +try { + push.apply( + (arr = slice.call( preferredDoc.childNodes )), + preferredDoc.childNodes + ); + // Support: Android<4.0 + // Detect silently failing push.apply + arr[ preferredDoc.childNodes.length ].nodeType; +} catch ( e ) { + push = { apply: arr.length ? + + // Leverage slice if possible + function( target, els ) { + push_native.apply( target, slice.call(els) ); + } : + + // Support: IE<9 + // Otherwise append directly + function( target, els ) { + var j = target.length, + i = 0; + // Can't trust NodeList.length + while ( (target[j++] = els[i++]) ) {} + target.length = j - 1; + } + }; +} + +function Sizzle( selector, context, results, seed ) { + var m, i, elem, nid, match, groups, newSelector, + newContext = context && context.ownerDocument, + + // nodeType defaults to 9, since context defaults to document + nodeType = context ? context.nodeType : 9; + + results = results || []; + + // Return early from calls with invalid selector or context + if ( typeof selector !== "string" || !selector || + nodeType !== 1 && nodeType !== 9 && nodeType !== 11 ) { + + return results; + } + + // Try to shortcut find operations (as opposed to filters) in HTML documents + if ( !seed ) { + + if ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) { + setDocument( context ); + } + context = context || document; + + if ( documentIsHTML ) { + + // If the selector is sufficiently simple, try using a "get*By*" DOM method + // (excepting DocumentFragment context, where the methods don't exist) + if ( nodeType !== 11 && (match = rquickExpr.exec( selector )) ) { + + // ID selector + if ( (m = match[1]) ) { + + // Document context + if ( nodeType === 9 ) { + if ( (elem = context.getElementById( m )) ) { + + // Support: IE, Opera, Webkit + // TODO: identify versions + // getElementById can match elements by name instead of ID + if ( elem.id === m ) { + results.push( elem ); + return results; + } + } else { + return results; + } + + // Element context + } else { + + // Support: IE, Opera, Webkit + // TODO: identify versions + // getElementById can match elements by name instead of ID + if ( newContext && (elem = newContext.getElementById( m )) && + contains( context, elem ) && + elem.id === m ) { + + results.push( elem ); + return results; + } + } + + // Type selector + } else if ( match[2] ) { + push.apply( results, context.getElementsByTagName( selector ) ); + return results; + + // Class selector + } else if ( (m = match[3]) && support.getElementsByClassName && + context.getElementsByClassName ) { + + push.apply( results, context.getElementsByClassName( m ) ); + return results; + } + } + + // Take advantage of querySelectorAll + if ( support.qsa && + !compilerCache[ selector + " " ] && + (!rbuggyQSA || !rbuggyQSA.test( selector )) ) { + + if ( nodeType !== 1 ) { + newContext = context; + newSelector = selector; + + // qSA looks outside Element context, which is not what we want + // Thanks to Andrew Dupont for this workaround technique + // Support: IE <=8 + // Exclude object elements + } else if ( context.nodeName.toLowerCase() !== "object" ) { + + // Capture the context ID, setting it first if necessary + if ( (nid = context.getAttribute( "id" )) ) { + nid = nid.replace( rcssescape, fcssescape ); + } else { + context.setAttribute( "id", (nid = expando) ); + } + + // Prefix every selector in the list + groups = tokenize( selector ); + i = groups.length; + while ( i-- ) { + groups[i] = "#" + nid + " " + toSelector( groups[i] ); + } + newSelector = groups.join( "," ); + + // Expand context for sibling selectors + newContext = rsibling.test( selector ) && testContext( context.parentNode ) || + context; + } + + if ( newSelector ) { + try { + push.apply( results, + newContext.querySelectorAll( newSelector ) + ); + return results; + } catch ( qsaError ) { + } finally { + if ( nid === expando ) { + context.removeAttribute( "id" ); + } + } + } + } + } + } + + // All others + return select( selector.replace( rtrim, "$1" ), context, results, seed ); +} + +/** + * Create key-value caches of limited size + * @returns {function(string, object)} Returns the Object data after storing it on itself with + * property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength) + * deleting the oldest entry + */ +function createCache() { + var keys = []; + + function cache( key, value ) { + // Use (key + " ") to avoid collision with native prototype properties (see Issue #157) + if ( keys.push( key + " " ) > Expr.cacheLength ) { + // Only keep the most recent entries + delete cache[ keys.shift() ]; + } + return (cache[ key + " " ] = value); + } + return cache; +} + +/** + * Mark a function for special use by Sizzle + * @param {Function} fn The function to mark + */ +function markFunction( fn ) { + fn[ expando ] = true; + return fn; +} + +/** + * Support testing using an element + * @param {Function} fn Passed the created element and returns a boolean result + */ +function assert( fn ) { + var el = document.createElement("fieldset"); + + try { + return !!fn( el ); + } catch (e) { + return false; + } finally { + // Remove from its parent by default + if ( el.parentNode ) { + el.parentNode.removeChild( el ); + } + // release memory in IE + el = null; + } +} + +/** + * Adds the same handler for all of the specified attrs + * @param {String} attrs Pipe-separated list of attributes + * @param {Function} handler The method that will be applied + */ +function addHandle( attrs, handler ) { + var arr = attrs.split("|"), + i = arr.length; + + while ( i-- ) { + Expr.attrHandle[ arr[i] ] = handler; + } +} + +/** + * Checks document order of two siblings + * @param {Element} a + * @param {Element} b + * @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b + */ +function siblingCheck( a, b ) { + var cur = b && a, + diff = cur && a.nodeType === 1 && b.nodeType === 1 && + a.sourceIndex - b.sourceIndex; + + // Use IE sourceIndex if available on both nodes + if ( diff ) { + return diff; + } + + // Check if b follows a + if ( cur ) { + while ( (cur = cur.nextSibling) ) { + if ( cur === b ) { + return -1; + } + } + } + + return a ? 1 : -1; +} + +/** + * Returns a function to use in pseudos for input types + * @param {String} type + */ +function createInputPseudo( type ) { + return function( elem ) { + var name = elem.nodeName.toLowerCase(); + return name === "input" && elem.type === type; + }; +} + +/** + * Returns a function to use in pseudos for buttons + * @param {String} type + */ +function createButtonPseudo( type ) { + return function( elem ) { + var name = elem.nodeName.toLowerCase(); + return (name === "input" || name === "button") && elem.type === type; + }; +} + +/** + * Returns a function to use in pseudos for :enabled/:disabled + * @param {Boolean} disabled true for :disabled; false for :enabled + */ +function createDisabledPseudo( disabled ) { + + // Known :disabled false positives: fieldset[disabled] > legend:nth-of-type(n+2) :can-disable + return function( elem ) { + + // Only certain elements can match :enabled or :disabled + // https://html.spec.whatwg.org/multipage/scripting.html#selector-enabled + // https://html.spec.whatwg.org/multipage/scripting.html#selector-disabled + if ( "form" in elem ) { + + // Check for inherited disabledness on relevant non-disabled elements: + // * listed form-associated elements in a disabled fieldset + // https://html.spec.whatwg.org/multipage/forms.html#category-listed + // https://html.spec.whatwg.org/multipage/forms.html#concept-fe-disabled + // * option elements in a disabled optgroup + // https://html.spec.whatwg.org/multipage/forms.html#concept-option-disabled + // All such elements have a "form" property. + if ( elem.parentNode && elem.disabled === false ) { + + // Option elements defer to a parent optgroup if present + if ( "label" in elem ) { + if ( "label" in elem.parentNode ) { + return elem.parentNode.disabled === disabled; + } else { + return elem.disabled === disabled; + } + } + + // Support: IE 6 - 11 + // Use the isDisabled shortcut property to check for disabled fieldset ancestors + return elem.isDisabled === disabled || + + // Where there is no isDisabled, check manually + /* jshint -W018 */ + elem.isDisabled !== !disabled && + disabledAncestor( elem ) === disabled; + } + + return elem.disabled === disabled; + + // Try to winnow out elements that can't be disabled before trusting the disabled property. + // Some victims get caught in our net (label, legend, menu, track), but it shouldn't + // even exist on them, let alone have a boolean value. + } else if ( "label" in elem ) { + return elem.disabled === disabled; + } + + // Remaining elements are neither :enabled nor :disabled + return false; + }; +} + +/** + * Returns a function to use in pseudos for positionals + * @param {Function} fn + */ +function createPositionalPseudo( fn ) { + return markFunction(function( argument ) { + argument = +argument; + return markFunction(function( seed, matches ) { + var j, + matchIndexes = fn( [], seed.length, argument ), + i = matchIndexes.length; + + // Match elements found at the specified indexes + while ( i-- ) { + if ( seed[ (j = matchIndexes[i]) ] ) { + seed[j] = !(matches[j] = seed[j]); + } + } + }); + }); +} + +/** + * Checks a node for validity as a Sizzle context + * @param {Element|Object=} context + * @returns {Element|Object|Boolean} The input node if acceptable, otherwise a falsy value + */ +function testContext( context ) { + return context && typeof context.getElementsByTagName !== "undefined" && context; +} + +// Expose support vars for convenience +support = Sizzle.support = {}; + +/** + * Detects XML nodes + * @param {Element|Object} elem An element or a document + * @returns {Boolean} True iff elem is a non-HTML XML node + */ +isXML = Sizzle.isXML = function( elem ) { + // documentElement is verified for cases where it doesn't yet exist + // (such as loading iframes in IE - #4833) + var documentElement = elem && (elem.ownerDocument || elem).documentElement; + return documentElement ? documentElement.nodeName !== "HTML" : false; +}; + +/** + * Sets document-related variables once based on the current document + * @param {Element|Object} [doc] An element or document object to use to set the document + * @returns {Object} Returns the current document + */ +setDocument = Sizzle.setDocument = function( node ) { + var hasCompare, subWindow, + doc = node ? node.ownerDocument || node : preferredDoc; + + // Return early if doc is invalid or already selected + if ( doc === document || doc.nodeType !== 9 || !doc.documentElement ) { + return document; + } + + // Update global variables + document = doc; + docElem = document.documentElement; + documentIsHTML = !isXML( document ); + + // Support: IE 9-11, Edge + // Accessing iframe documents after unload throws "permission denied" errors (jQuery #13936) + if ( preferredDoc !== document && + (subWindow = document.defaultView) && subWindow.top !== subWindow ) { + + // Support: IE 11, Edge + if ( subWindow.addEventListener ) { + subWindow.addEventListener( "unload", unloadHandler, false ); + + // Support: IE 9 - 10 only + } else if ( subWindow.attachEvent ) { + subWindow.attachEvent( "onunload", unloadHandler ); + } + } + + /* Attributes + ---------------------------------------------------------------------- */ + + // Support: IE<8 + // Verify that getAttribute really returns attributes and not properties + // (excepting IE8 booleans) + support.attributes = assert(function( el ) { + el.className = "i"; + return !el.getAttribute("className"); + }); + + /* getElement(s)By* + ---------------------------------------------------------------------- */ + + // Check if getElementsByTagName("*") returns only elements + support.getElementsByTagName = assert(function( el ) { + el.appendChild( document.createComment("") ); + return !el.getElementsByTagName("*").length; + }); + + // Support: IE<9 + support.getElementsByClassName = rnative.test( document.getElementsByClassName ); + + // Support: IE<10 + // Check if getElementById returns elements by name + // The broken getElementById methods don't pick up programmatically-set names, + // so use a roundabout getElementsByName test + support.getById = assert(function( el ) { + docElem.appendChild( el ).id = expando; + return !document.getElementsByName || !document.getElementsByName( expando ).length; + }); + + // ID filter and find + if ( support.getById ) { + Expr.filter["ID"] = function( id ) { + var attrId = id.replace( runescape, funescape ); + return function( elem ) { + return elem.getAttribute("id") === attrId; + }; + }; + Expr.find["ID"] = function( id, context ) { + if ( typeof context.getElementById !== "undefined" && documentIsHTML ) { + var elem = context.getElementById( id ); + return elem ? [ elem ] : []; + } + }; + } else { + Expr.filter["ID"] = function( id ) { + var attrId = id.replace( runescape, funescape ); + return function( elem ) { + var node = typeof elem.getAttributeNode !== "undefined" && + elem.getAttributeNode("id"); + return node && node.value === attrId; + }; + }; + + // Support: IE 6 - 7 only + // getElementById is not reliable as a find shortcut + Expr.find["ID"] = function( id, context ) { + if ( typeof context.getElementById !== "undefined" && documentIsHTML ) { + var node, i, elems, + elem = context.getElementById( id ); + + if ( elem ) { + + // Verify the id attribute + node = elem.getAttributeNode("id"); + if ( node && node.value === id ) { + return [ elem ]; + } + + // Fall back on getElementsByName + elems = context.getElementsByName( id ); + i = 0; + while ( (elem = elems[i++]) ) { + node = elem.getAttributeNode("id"); + if ( node && node.value === id ) { + return [ elem ]; + } + } + } + + return []; + } + }; + } + + // Tag + Expr.find["TAG"] = support.getElementsByTagName ? + function( tag, context ) { + if ( typeof context.getElementsByTagName !== "undefined" ) { + return context.getElementsByTagName( tag ); + + // DocumentFragment nodes don't have gEBTN + } else if ( support.qsa ) { + return context.querySelectorAll( tag ); + } + } : + + function( tag, context ) { + var elem, + tmp = [], + i = 0, + // By happy coincidence, a (broken) gEBTN appears on DocumentFragment nodes too + results = context.getElementsByTagName( tag ); + + // Filter out possible comments + if ( tag === "*" ) { + while ( (elem = results[i++]) ) { + if ( elem.nodeType === 1 ) { + tmp.push( elem ); + } + } + + return tmp; + } + return results; + }; + + // Class + Expr.find["CLASS"] = support.getElementsByClassName && function( className, context ) { + if ( typeof context.getElementsByClassName !== "undefined" && documentIsHTML ) { + return context.getElementsByClassName( className ); + } + }; + + /* QSA/matchesSelector + ---------------------------------------------------------------------- */ + + // QSA and matchesSelector support + + // matchesSelector(:active) reports false when true (IE9/Opera 11.5) + rbuggyMatches = []; + + // qSa(:focus) reports false when true (Chrome 21) + // We allow this because of a bug in IE8/9 that throws an error + // whenever `document.activeElement` is accessed on an iframe + // So, we allow :focus to pass through QSA all the time to avoid the IE error + // See https://bugs.jquery.com/ticket/13378 + rbuggyQSA = []; + + if ( (support.qsa = rnative.test( document.querySelectorAll )) ) { + // Build QSA regex + // Regex strategy adopted from Diego Perini + assert(function( el ) { + // Select is set to empty string on purpose + // This is to test IE's treatment of not explicitly + // setting a boolean content attribute, + // since its presence should be enough + // https://bugs.jquery.com/ticket/12359 + docElem.appendChild( el ).innerHTML = "" + + ""; + + // Support: IE8, Opera 11-12.16 + // Nothing should be selected when empty strings follow ^= or $= or *= + // The test attribute must be unknown in Opera but "safe" for WinRT + // https://msdn.microsoft.com/en-us/library/ie/hh465388.aspx#attribute_section + if ( el.querySelectorAll("[msallowcapture^='']").length ) { + rbuggyQSA.push( "[*^$]=" + whitespace + "*(?:''|\"\")" ); + } + + // Support: IE8 + // Boolean attributes and "value" are not treated correctly + if ( !el.querySelectorAll("[selected]").length ) { + rbuggyQSA.push( "\\[" + whitespace + "*(?:value|" + booleans + ")" ); + } + + // Support: Chrome<29, Android<4.4, Safari<7.0+, iOS<7.0+, PhantomJS<1.9.8+ + if ( !el.querySelectorAll( "[id~=" + expando + "-]" ).length ) { + rbuggyQSA.push("~="); + } + + // Webkit/Opera - :checked should return selected option elements + // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked + // IE8 throws error here and will not see later tests + if ( !el.querySelectorAll(":checked").length ) { + rbuggyQSA.push(":checked"); + } + + // Support: Safari 8+, iOS 8+ + // https://bugs.webkit.org/show_bug.cgi?id=136851 + // In-page `selector#id sibling-combinator selector` fails + if ( !el.querySelectorAll( "a#" + expando + "+*" ).length ) { + rbuggyQSA.push(".#.+[+~]"); + } + }); + + assert(function( el ) { + el.innerHTML = "" + + ""; + + // Support: Windows 8 Native Apps + // The type and name attributes are restricted during .innerHTML assignment + var input = document.createElement("input"); + input.setAttribute( "type", "hidden" ); + el.appendChild( input ).setAttribute( "name", "D" ); + + // Support: IE8 + // Enforce case-sensitivity of name attribute + if ( el.querySelectorAll("[name=d]").length ) { + rbuggyQSA.push( "name" + whitespace + "*[*^$|!~]?=" ); + } + + // FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled) + // IE8 throws error here and will not see later tests + if ( el.querySelectorAll(":enabled").length !== 2 ) { + rbuggyQSA.push( ":enabled", ":disabled" ); + } + + // Support: IE9-11+ + // IE's :disabled selector does not pick up the children of disabled fieldsets + docElem.appendChild( el ).disabled = true; + if ( el.querySelectorAll(":disabled").length !== 2 ) { + rbuggyQSA.push( ":enabled", ":disabled" ); + } + + // Opera 10-11 does not throw on post-comma invalid pseudos + el.querySelectorAll("*,:x"); + rbuggyQSA.push(",.*:"); + }); + } + + if ( (support.matchesSelector = rnative.test( (matches = docElem.matches || + docElem.webkitMatchesSelector || + docElem.mozMatchesSelector || + docElem.oMatchesSelector || + docElem.msMatchesSelector) )) ) { + + assert(function( el ) { + // Check to see if it's possible to do matchesSelector + // on a disconnected node (IE 9) + support.disconnectedMatch = matches.call( el, "*" ); + + // This should fail with an exception + // Gecko does not error, returns false instead + matches.call( el, "[s!='']:x" ); + rbuggyMatches.push( "!=", pseudos ); + }); + } + + rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join("|") ); + rbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join("|") ); + + /* Contains + ---------------------------------------------------------------------- */ + hasCompare = rnative.test( docElem.compareDocumentPosition ); + + // Element contains another + // Purposefully self-exclusive + // As in, an element does not contain itself + contains = hasCompare || rnative.test( docElem.contains ) ? + function( a, b ) { + var adown = a.nodeType === 9 ? a.documentElement : a, + bup = b && b.parentNode; + return a === bup || !!( bup && bup.nodeType === 1 && ( + adown.contains ? + adown.contains( bup ) : + a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16 + )); + } : + function( a, b ) { + if ( b ) { + while ( (b = b.parentNode) ) { + if ( b === a ) { + return true; + } + } + } + return false; + }; + + /* Sorting + ---------------------------------------------------------------------- */ + + // Document order sorting + sortOrder = hasCompare ? + function( a, b ) { + + // Flag for duplicate removal + if ( a === b ) { + hasDuplicate = true; + return 0; + } + + // Sort on method existence if only one input has compareDocumentPosition + var compare = !a.compareDocumentPosition - !b.compareDocumentPosition; + if ( compare ) { + return compare; + } + + // Calculate position if both inputs belong to the same document + compare = ( a.ownerDocument || a ) === ( b.ownerDocument || b ) ? + a.compareDocumentPosition( b ) : + + // Otherwise we know they are disconnected + 1; + + // Disconnected nodes + if ( compare & 1 || + (!support.sortDetached && b.compareDocumentPosition( a ) === compare) ) { + + // Choose the first element that is related to our preferred document + if ( a === document || a.ownerDocument === preferredDoc && contains(preferredDoc, a) ) { + return -1; + } + if ( b === document || b.ownerDocument === preferredDoc && contains(preferredDoc, b) ) { + return 1; + } + + // Maintain original order + return sortInput ? + ( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) : + 0; + } + + return compare & 4 ? -1 : 1; + } : + function( a, b ) { + // Exit early if the nodes are identical + if ( a === b ) { + hasDuplicate = true; + return 0; + } + + var cur, + i = 0, + aup = a.parentNode, + bup = b.parentNode, + ap = [ a ], + bp = [ b ]; + + // Parentless nodes are either documents or disconnected + if ( !aup || !bup ) { + return a === document ? -1 : + b === document ? 1 : + aup ? -1 : + bup ? 1 : + sortInput ? + ( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) : + 0; + + // If the nodes are siblings, we can do a quick check + } else if ( aup === bup ) { + return siblingCheck( a, b ); + } + + // Otherwise we need full lists of their ancestors for comparison + cur = a; + while ( (cur = cur.parentNode) ) { + ap.unshift( cur ); + } + cur = b; + while ( (cur = cur.parentNode) ) { + bp.unshift( cur ); + } + + // Walk down the tree looking for a discrepancy + while ( ap[i] === bp[i] ) { + i++; + } + + return i ? + // Do a sibling check if the nodes have a common ancestor + siblingCheck( ap[i], bp[i] ) : + + // Otherwise nodes in our document sort first + ap[i] === preferredDoc ? -1 : + bp[i] === preferredDoc ? 1 : + 0; + }; + + return document; +}; + +Sizzle.matches = function( expr, elements ) { + return Sizzle( expr, null, null, elements ); +}; + +Sizzle.matchesSelector = function( elem, expr ) { + // Set document vars if needed + if ( ( elem.ownerDocument || elem ) !== document ) { + setDocument( elem ); + } + + // Make sure that attribute selectors are quoted + expr = expr.replace( rattributeQuotes, "='$1']" ); + + if ( support.matchesSelector && documentIsHTML && + !compilerCache[ expr + " " ] && + ( !rbuggyMatches || !rbuggyMatches.test( expr ) ) && + ( !rbuggyQSA || !rbuggyQSA.test( expr ) ) ) { + + try { + var ret = matches.call( elem, expr ); + + // IE 9's matchesSelector returns false on disconnected nodes + if ( ret || support.disconnectedMatch || + // As well, disconnected nodes are said to be in a document + // fragment in IE 9 + elem.document && elem.document.nodeType !== 11 ) { + return ret; + } + } catch (e) {} + } + + return Sizzle( expr, document, null, [ elem ] ).length > 0; +}; + +Sizzle.contains = function( context, elem ) { + // Set document vars if needed + if ( ( context.ownerDocument || context ) !== document ) { + setDocument( context ); + } + return contains( context, elem ); +}; + +Sizzle.attr = function( elem, name ) { + // Set document vars if needed + if ( ( elem.ownerDocument || elem ) !== document ) { + setDocument( elem ); + } + + var fn = Expr.attrHandle[ name.toLowerCase() ], + // Don't get fooled by Object.prototype properties (jQuery #13807) + val = fn && hasOwn.call( Expr.attrHandle, name.toLowerCase() ) ? + fn( elem, name, !documentIsHTML ) : + undefined; + + return val !== undefined ? + val : + support.attributes || !documentIsHTML ? + elem.getAttribute( name ) : + (val = elem.getAttributeNode(name)) && val.specified ? + val.value : + null; +}; + +Sizzle.escape = function( sel ) { + return (sel + "").replace( rcssescape, fcssescape ); +}; + +Sizzle.error = function( msg ) { + throw new Error( "Syntax error, unrecognized expression: " + msg ); +}; + +/** + * Document sorting and removing duplicates + * @param {ArrayLike} results + */ +Sizzle.uniqueSort = function( results ) { + var elem, + duplicates = [], + j = 0, + i = 0; + + // Unless we *know* we can detect duplicates, assume their presence + hasDuplicate = !support.detectDuplicates; + sortInput = !support.sortStable && results.slice( 0 ); + results.sort( sortOrder ); + + if ( hasDuplicate ) { + while ( (elem = results[i++]) ) { + if ( elem === results[ i ] ) { + j = duplicates.push( i ); + } + } + while ( j-- ) { + results.splice( duplicates[ j ], 1 ); + } + } + + // Clear input after sorting to release objects + // See https://github.com/jquery/sizzle/pull/225 + sortInput = null; + + return results; +}; + +/** + * Utility function for retrieving the text value of an array of DOM nodes + * @param {Array|Element} elem + */ +getText = Sizzle.getText = function( elem ) { + var node, + ret = "", + i = 0, + nodeType = elem.nodeType; + + if ( !nodeType ) { + // If no nodeType, this is expected to be an array + while ( (node = elem[i++]) ) { + // Do not traverse comment nodes + ret += getText( node ); + } + } else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) { + // Use textContent for elements + // innerText usage removed for consistency of new lines (jQuery #11153) + if ( typeof elem.textContent === "string" ) { + return elem.textContent; + } else { + // Traverse its children + for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) { + ret += getText( elem ); + } + } + } else if ( nodeType === 3 || nodeType === 4 ) { + return elem.nodeValue; + } + // Do not include comment or processing instruction nodes + + return ret; +}; + +Expr = Sizzle.selectors = { + + // Can be adjusted by the user + cacheLength: 50, + + createPseudo: markFunction, + + match: matchExpr, + + attrHandle: {}, + + find: {}, + + relative: { + ">": { dir: "parentNode", first: true }, + " ": { dir: "parentNode" }, + "+": { dir: "previousSibling", first: true }, + "~": { dir: "previousSibling" } + }, + + preFilter: { + "ATTR": function( match ) { + match[1] = match[1].replace( runescape, funescape ); + + // Move the given value to match[3] whether quoted or unquoted + match[3] = ( match[3] || match[4] || match[5] || "" ).replace( runescape, funescape ); + + if ( match[2] === "~=" ) { + match[3] = " " + match[3] + " "; + } + + return match.slice( 0, 4 ); + }, + + "CHILD": function( match ) { + /* matches from matchExpr["CHILD"] + 1 type (only|nth|...) + 2 what (child|of-type) + 3 argument (even|odd|\d*|\d*n([+-]\d+)?|...) + 4 xn-component of xn+y argument ([+-]?\d*n|) + 5 sign of xn-component + 6 x of xn-component + 7 sign of y-component + 8 y of y-component + */ + match[1] = match[1].toLowerCase(); + + if ( match[1].slice( 0, 3 ) === "nth" ) { + // nth-* requires argument + if ( !match[3] ) { + Sizzle.error( match[0] ); + } + + // numeric x and y parameters for Expr.filter.CHILD + // remember that false/true cast respectively to 0/1 + match[4] = +( match[4] ? match[5] + (match[6] || 1) : 2 * ( match[3] === "even" || match[3] === "odd" ) ); + match[5] = +( ( match[7] + match[8] ) || match[3] === "odd" ); + + // other types prohibit arguments + } else if ( match[3] ) { + Sizzle.error( match[0] ); + } + + return match; + }, + + "PSEUDO": function( match ) { + var excess, + unquoted = !match[6] && match[2]; + + if ( matchExpr["CHILD"].test( match[0] ) ) { + return null; + } + + // Accept quoted arguments as-is + if ( match[3] ) { + match[2] = match[4] || match[5] || ""; + + // Strip excess characters from unquoted arguments + } else if ( unquoted && rpseudo.test( unquoted ) && + // Get excess from tokenize (recursively) + (excess = tokenize( unquoted, true )) && + // advance to the next closing parenthesis + (excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length) ) { + + // excess is a negative index + match[0] = match[0].slice( 0, excess ); + match[2] = unquoted.slice( 0, excess ); + } + + // Return only captures needed by the pseudo filter method (type and argument) + return match.slice( 0, 3 ); + } + }, + + filter: { + + "TAG": function( nodeNameSelector ) { + var nodeName = nodeNameSelector.replace( runescape, funescape ).toLowerCase(); + return nodeNameSelector === "*" ? + function() { return true; } : + function( elem ) { + return elem.nodeName && elem.nodeName.toLowerCase() === nodeName; + }; + }, + + "CLASS": function( className ) { + var pattern = classCache[ className + " " ]; + + return pattern || + (pattern = new RegExp( "(^|" + whitespace + ")" + className + "(" + whitespace + "|$)" )) && + classCache( className, function( elem ) { + return pattern.test( typeof elem.className === "string" && elem.className || typeof elem.getAttribute !== "undefined" && elem.getAttribute("class") || "" ); + }); + }, + + "ATTR": function( name, operator, check ) { + return function( elem ) { + var result = Sizzle.attr( elem, name ); + + if ( result == null ) { + return operator === "!="; + } + if ( !operator ) { + return true; + } + + result += ""; + + return operator === "=" ? result === check : + operator === "!=" ? result !== check : + operator === "^=" ? check && result.indexOf( check ) === 0 : + operator === "*=" ? check && result.indexOf( check ) > -1 : + operator === "$=" ? check && result.slice( -check.length ) === check : + operator === "~=" ? ( " " + result.replace( rwhitespace, " " ) + " " ).indexOf( check ) > -1 : + operator === "|=" ? result === check || result.slice( 0, check.length + 1 ) === check + "-" : + false; + }; + }, + + "CHILD": function( type, what, argument, first, last ) { + var simple = type.slice( 0, 3 ) !== "nth", + forward = type.slice( -4 ) !== "last", + ofType = what === "of-type"; + + return first === 1 && last === 0 ? + + // Shortcut for :nth-*(n) + function( elem ) { + return !!elem.parentNode; + } : + + function( elem, context, xml ) { + var cache, uniqueCache, outerCache, node, nodeIndex, start, + dir = simple !== forward ? "nextSibling" : "previousSibling", + parent = elem.parentNode, + name = ofType && elem.nodeName.toLowerCase(), + useCache = !xml && !ofType, + diff = false; + + if ( parent ) { + + // :(first|last|only)-(child|of-type) + if ( simple ) { + while ( dir ) { + node = elem; + while ( (node = node[ dir ]) ) { + if ( ofType ? + node.nodeName.toLowerCase() === name : + node.nodeType === 1 ) { + + return false; + } + } + // Reverse direction for :only-* (if we haven't yet done so) + start = dir = type === "only" && !start && "nextSibling"; + } + return true; + } + + start = [ forward ? parent.firstChild : parent.lastChild ]; + + // non-xml :nth-child(...) stores cache data on `parent` + if ( forward && useCache ) { + + // Seek `elem` from a previously-cached index + + // ...in a gzip-friendly way + node = parent; + outerCache = node[ expando ] || (node[ expando ] = {}); + + // Support: IE <9 only + // Defend against cloned attroperties (jQuery gh-1709) + uniqueCache = outerCache[ node.uniqueID ] || + (outerCache[ node.uniqueID ] = {}); + + cache = uniqueCache[ type ] || []; + nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ]; + diff = nodeIndex && cache[ 2 ]; + node = nodeIndex && parent.childNodes[ nodeIndex ]; + + while ( (node = ++nodeIndex && node && node[ dir ] || + + // Fallback to seeking `elem` from the start + (diff = nodeIndex = 0) || start.pop()) ) { + + // When found, cache indexes on `parent` and break + if ( node.nodeType === 1 && ++diff && node === elem ) { + uniqueCache[ type ] = [ dirruns, nodeIndex, diff ]; + break; + } + } + + } else { + // Use previously-cached element index if available + if ( useCache ) { + // ...in a gzip-friendly way + node = elem; + outerCache = node[ expando ] || (node[ expando ] = {}); + + // Support: IE <9 only + // Defend against cloned attroperties (jQuery gh-1709) + uniqueCache = outerCache[ node.uniqueID ] || + (outerCache[ node.uniqueID ] = {}); + + cache = uniqueCache[ type ] || []; + nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ]; + diff = nodeIndex; + } + + // xml :nth-child(...) + // or :nth-last-child(...) or :nth(-last)?-of-type(...) + if ( diff === false ) { + // Use the same loop as above to seek `elem` from the start + while ( (node = ++nodeIndex && node && node[ dir ] || + (diff = nodeIndex = 0) || start.pop()) ) { + + if ( ( ofType ? + node.nodeName.toLowerCase() === name : + node.nodeType === 1 ) && + ++diff ) { + + // Cache the index of each encountered element + if ( useCache ) { + outerCache = node[ expando ] || (node[ expando ] = {}); + + // Support: IE <9 only + // Defend against cloned attroperties (jQuery gh-1709) + uniqueCache = outerCache[ node.uniqueID ] || + (outerCache[ node.uniqueID ] = {}); + + uniqueCache[ type ] = [ dirruns, diff ]; + } + + if ( node === elem ) { + break; + } + } + } + } + } + + // Incorporate the offset, then check against cycle size + diff -= last; + return diff === first || ( diff % first === 0 && diff / first >= 0 ); + } + }; + }, + + "PSEUDO": function( pseudo, argument ) { + // pseudo-class names are case-insensitive + // http://www.w3.org/TR/selectors/#pseudo-classes + // Prioritize by case sensitivity in case custom pseudos are added with uppercase letters + // Remember that setFilters inherits from pseudos + var args, + fn = Expr.pseudos[ pseudo ] || Expr.setFilters[ pseudo.toLowerCase() ] || + Sizzle.error( "unsupported pseudo: " + pseudo ); + + // The user may use createPseudo to indicate that + // arguments are needed to create the filter function + // just as Sizzle does + if ( fn[ expando ] ) { + return fn( argument ); + } + + // But maintain support for old signatures + if ( fn.length > 1 ) { + args = [ pseudo, pseudo, "", argument ]; + return Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ? + markFunction(function( seed, matches ) { + var idx, + matched = fn( seed, argument ), + i = matched.length; + while ( i-- ) { + idx = indexOf( seed, matched[i] ); + seed[ idx ] = !( matches[ idx ] = matched[i] ); + } + }) : + function( elem ) { + return fn( elem, 0, args ); + }; + } + + return fn; + } + }, + + pseudos: { + // Potentially complex pseudos + "not": markFunction(function( selector ) { + // Trim the selector passed to compile + // to avoid treating leading and trailing + // spaces as combinators + var input = [], + results = [], + matcher = compile( selector.replace( rtrim, "$1" ) ); + + return matcher[ expando ] ? + markFunction(function( seed, matches, context, xml ) { + var elem, + unmatched = matcher( seed, null, xml, [] ), + i = seed.length; + + // Match elements unmatched by `matcher` + while ( i-- ) { + if ( (elem = unmatched[i]) ) { + seed[i] = !(matches[i] = elem); + } + } + }) : + function( elem, context, xml ) { + input[0] = elem; + matcher( input, null, xml, results ); + // Don't keep the element (issue #299) + input[0] = null; + return !results.pop(); + }; + }), + + "has": markFunction(function( selector ) { + return function( elem ) { + return Sizzle( selector, elem ).length > 0; + }; + }), + + "contains": markFunction(function( text ) { + text = text.replace( runescape, funescape ); + return function( elem ) { + return ( elem.textContent || elem.innerText || getText( elem ) ).indexOf( text ) > -1; + }; + }), + + // "Whether an element is represented by a :lang() selector + // is based solely on the element's language value + // being equal to the identifier C, + // or beginning with the identifier C immediately followed by "-". + // The matching of C against the element's language value is performed case-insensitively. + // The identifier C does not have to be a valid language name." + // http://www.w3.org/TR/selectors/#lang-pseudo + "lang": markFunction( function( lang ) { + // lang value must be a valid identifier + if ( !ridentifier.test(lang || "") ) { + Sizzle.error( "unsupported lang: " + lang ); + } + lang = lang.replace( runescape, funescape ).toLowerCase(); + return function( elem ) { + var elemLang; + do { + if ( (elemLang = documentIsHTML ? + elem.lang : + elem.getAttribute("xml:lang") || elem.getAttribute("lang")) ) { + + elemLang = elemLang.toLowerCase(); + return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0; + } + } while ( (elem = elem.parentNode) && elem.nodeType === 1 ); + return false; + }; + }), + + // Miscellaneous + "target": function( elem ) { + var hash = window.location && window.location.hash; + return hash && hash.slice( 1 ) === elem.id; + }, + + "root": function( elem ) { + return elem === docElem; + }, + + "focus": function( elem ) { + return elem === document.activeElement && (!document.hasFocus || document.hasFocus()) && !!(elem.type || elem.href || ~elem.tabIndex); + }, + + // Boolean properties + "enabled": createDisabledPseudo( false ), + "disabled": createDisabledPseudo( true ), + + "checked": function( elem ) { + // In CSS3, :checked should return both checked and selected elements + // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked + var nodeName = elem.nodeName.toLowerCase(); + return (nodeName === "input" && !!elem.checked) || (nodeName === "option" && !!elem.selected); + }, + + "selected": function( elem ) { + // Accessing this property makes selected-by-default + // options in Safari work properly + if ( elem.parentNode ) { + elem.parentNode.selectedIndex; + } + + return elem.selected === true; + }, + + // Contents + "empty": function( elem ) { + // http://www.w3.org/TR/selectors/#empty-pseudo + // :empty is negated by element (1) or content nodes (text: 3; cdata: 4; entity ref: 5), + // but not by others (comment: 8; processing instruction: 7; etc.) + // nodeType < 6 works because attributes (2) do not appear as children + for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) { + if ( elem.nodeType < 6 ) { + return false; + } + } + return true; + }, + + "parent": function( elem ) { + return !Expr.pseudos["empty"]( elem ); + }, + + // Element/input types + "header": function( elem ) { + return rheader.test( elem.nodeName ); + }, + + "input": function( elem ) { + return rinputs.test( elem.nodeName ); + }, + + "button": function( elem ) { + var name = elem.nodeName.toLowerCase(); + return name === "input" && elem.type === "button" || name === "button"; + }, + + "text": function( elem ) { + var attr; + return elem.nodeName.toLowerCase() === "input" && + elem.type === "text" && + + // Support: IE<8 + // New HTML5 attribute values (e.g., "search") appear with elem.type === "text" + ( (attr = elem.getAttribute("type")) == null || attr.toLowerCase() === "text" ); + }, + + // Position-in-collection + "first": createPositionalPseudo(function() { + return [ 0 ]; + }), + + "last": createPositionalPseudo(function( matchIndexes, length ) { + return [ length - 1 ]; + }), + + "eq": createPositionalPseudo(function( matchIndexes, length, argument ) { + return [ argument < 0 ? argument + length : argument ]; + }), + + "even": createPositionalPseudo(function( matchIndexes, length ) { + var i = 0; + for ( ; i < length; i += 2 ) { + matchIndexes.push( i ); + } + return matchIndexes; + }), + + "odd": createPositionalPseudo(function( matchIndexes, length ) { + var i = 1; + for ( ; i < length; i += 2 ) { + matchIndexes.push( i ); + } + return matchIndexes; + }), + + "lt": createPositionalPseudo(function( matchIndexes, length, argument ) { + var i = argument < 0 ? argument + length : argument; + for ( ; --i >= 0; ) { + matchIndexes.push( i ); + } + return matchIndexes; + }), + + "gt": createPositionalPseudo(function( matchIndexes, length, argument ) { + var i = argument < 0 ? argument + length : argument; + for ( ; ++i < length; ) { + matchIndexes.push( i ); + } + return matchIndexes; + }) + } +}; + +Expr.pseudos["nth"] = Expr.pseudos["eq"]; + +// Add button/input type pseudos +for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) { + Expr.pseudos[ i ] = createInputPseudo( i ); +} +for ( i in { submit: true, reset: true } ) { + Expr.pseudos[ i ] = createButtonPseudo( i ); +} + +// Easy API for creating new setFilters +function setFilters() {} +setFilters.prototype = Expr.filters = Expr.pseudos; +Expr.setFilters = new setFilters(); + +tokenize = Sizzle.tokenize = function( selector, parseOnly ) { + var matched, match, tokens, type, + soFar, groups, preFilters, + cached = tokenCache[ selector + " " ]; + + if ( cached ) { + return parseOnly ? 0 : cached.slice( 0 ); + } + + soFar = selector; + groups = []; + preFilters = Expr.preFilter; + + while ( soFar ) { + + // Comma and first run + if ( !matched || (match = rcomma.exec( soFar )) ) { + if ( match ) { + // Don't consume trailing commas as valid + soFar = soFar.slice( match[0].length ) || soFar; + } + groups.push( (tokens = []) ); + } + + matched = false; + + // Combinators + if ( (match = rcombinators.exec( soFar )) ) { + matched = match.shift(); + tokens.push({ + value: matched, + // Cast descendant combinators to space + type: match[0].replace( rtrim, " " ) + }); + soFar = soFar.slice( matched.length ); + } + + // Filters + for ( type in Expr.filter ) { + if ( (match = matchExpr[ type ].exec( soFar )) && (!preFilters[ type ] || + (match = preFilters[ type ]( match ))) ) { + matched = match.shift(); + tokens.push({ + value: matched, + type: type, + matches: match + }); + soFar = soFar.slice( matched.length ); + } + } + + if ( !matched ) { + break; + } + } + + // Return the length of the invalid excess + // if we're just parsing + // Otherwise, throw an error or return tokens + return parseOnly ? + soFar.length : + soFar ? + Sizzle.error( selector ) : + // Cache the tokens + tokenCache( selector, groups ).slice( 0 ); +}; + +function toSelector( tokens ) { + var i = 0, + len = tokens.length, + selector = ""; + for ( ; i < len; i++ ) { + selector += tokens[i].value; + } + return selector; +} + +function addCombinator( matcher, combinator, base ) { + var dir = combinator.dir, + skip = combinator.next, + key = skip || dir, + checkNonElements = base && key === "parentNode", + doneName = done++; + + return combinator.first ? + // Check against closest ancestor/preceding element + function( elem, context, xml ) { + while ( (elem = elem[ dir ]) ) { + if ( elem.nodeType === 1 || checkNonElements ) { + return matcher( elem, context, xml ); + } + } + return false; + } : + + // Check against all ancestor/preceding elements + function( elem, context, xml ) { + var oldCache, uniqueCache, outerCache, + newCache = [ dirruns, doneName ]; + + // We can't set arbitrary data on XML nodes, so they don't benefit from combinator caching + if ( xml ) { + while ( (elem = elem[ dir ]) ) { + if ( elem.nodeType === 1 || checkNonElements ) { + if ( matcher( elem, context, xml ) ) { + return true; + } + } + } + } else { + while ( (elem = elem[ dir ]) ) { + if ( elem.nodeType === 1 || checkNonElements ) { + outerCache = elem[ expando ] || (elem[ expando ] = {}); + + // Support: IE <9 only + // Defend against cloned attroperties (jQuery gh-1709) + uniqueCache = outerCache[ elem.uniqueID ] || (outerCache[ elem.uniqueID ] = {}); + + if ( skip && skip === elem.nodeName.toLowerCase() ) { + elem = elem[ dir ] || elem; + } else if ( (oldCache = uniqueCache[ key ]) && + oldCache[ 0 ] === dirruns && oldCache[ 1 ] === doneName ) { + + // Assign to newCache so results back-propagate to previous elements + return (newCache[ 2 ] = oldCache[ 2 ]); + } else { + // Reuse newcache so results back-propagate to previous elements + uniqueCache[ key ] = newCache; + + // A match means we're done; a fail means we have to keep checking + if ( (newCache[ 2 ] = matcher( elem, context, xml )) ) { + return true; + } + } + } + } + } + return false; + }; +} + +function elementMatcher( matchers ) { + return matchers.length > 1 ? + function( elem, context, xml ) { + var i = matchers.length; + while ( i-- ) { + if ( !matchers[i]( elem, context, xml ) ) { + return false; + } + } + return true; + } : + matchers[0]; +} + +function multipleContexts( selector, contexts, results ) { + var i = 0, + len = contexts.length; + for ( ; i < len; i++ ) { + Sizzle( selector, contexts[i], results ); + } + return results; +} + +function condense( unmatched, map, filter, context, xml ) { + var elem, + newUnmatched = [], + i = 0, + len = unmatched.length, + mapped = map != null; + + for ( ; i < len; i++ ) { + if ( (elem = unmatched[i]) ) { + if ( !filter || filter( elem, context, xml ) ) { + newUnmatched.push( elem ); + if ( mapped ) { + map.push( i ); + } + } + } + } + + return newUnmatched; +} + +function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postSelector ) { + if ( postFilter && !postFilter[ expando ] ) { + postFilter = setMatcher( postFilter ); + } + if ( postFinder && !postFinder[ expando ] ) { + postFinder = setMatcher( postFinder, postSelector ); + } + return markFunction(function( seed, results, context, xml ) { + var temp, i, elem, + preMap = [], + postMap = [], + preexisting = results.length, + + // Get initial elements from seed or context + elems = seed || multipleContexts( selector || "*", context.nodeType ? [ context ] : context, [] ), + + // Prefilter to get matcher input, preserving a map for seed-results synchronization + matcherIn = preFilter && ( seed || !selector ) ? + condense( elems, preMap, preFilter, context, xml ) : + elems, + + matcherOut = matcher ? + // If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results, + postFinder || ( seed ? preFilter : preexisting || postFilter ) ? + + // ...intermediate processing is necessary + [] : + + // ...otherwise use results directly + results : + matcherIn; + + // Find primary matches + if ( matcher ) { + matcher( matcherIn, matcherOut, context, xml ); + } + + // Apply postFilter + if ( postFilter ) { + temp = condense( matcherOut, postMap ); + postFilter( temp, [], context, xml ); + + // Un-match failing elements by moving them back to matcherIn + i = temp.length; + while ( i-- ) { + if ( (elem = temp[i]) ) { + matcherOut[ postMap[i] ] = !(matcherIn[ postMap[i] ] = elem); + } + } + } + + if ( seed ) { + if ( postFinder || preFilter ) { + if ( postFinder ) { + // Get the final matcherOut by condensing this intermediate into postFinder contexts + temp = []; + i = matcherOut.length; + while ( i-- ) { + if ( (elem = matcherOut[i]) ) { + // Restore matcherIn since elem is not yet a final match + temp.push( (matcherIn[i] = elem) ); + } + } + postFinder( null, (matcherOut = []), temp, xml ); + } + + // Move matched elements from seed to results to keep them synchronized + i = matcherOut.length; + while ( i-- ) { + if ( (elem = matcherOut[i]) && + (temp = postFinder ? indexOf( seed, elem ) : preMap[i]) > -1 ) { + + seed[temp] = !(results[temp] = elem); + } + } + } + + // Add elements to results, through postFinder if defined + } else { + matcherOut = condense( + matcherOut === results ? + matcherOut.splice( preexisting, matcherOut.length ) : + matcherOut + ); + if ( postFinder ) { + postFinder( null, results, matcherOut, xml ); + } else { + push.apply( results, matcherOut ); + } + } + }); +} + +function matcherFromTokens( tokens ) { + var checkContext, matcher, j, + len = tokens.length, + leadingRelative = Expr.relative[ tokens[0].type ], + implicitRelative = leadingRelative || Expr.relative[" "], + i = leadingRelative ? 1 : 0, + + // The foundational matcher ensures that elements are reachable from top-level context(s) + matchContext = addCombinator( function( elem ) { + return elem === checkContext; + }, implicitRelative, true ), + matchAnyContext = addCombinator( function( elem ) { + return indexOf( checkContext, elem ) > -1; + }, implicitRelative, true ), + matchers = [ function( elem, context, xml ) { + var ret = ( !leadingRelative && ( xml || context !== outermostContext ) ) || ( + (checkContext = context).nodeType ? + matchContext( elem, context, xml ) : + matchAnyContext( elem, context, xml ) ); + // Avoid hanging onto element (issue #299) + checkContext = null; + return ret; + } ]; + + for ( ; i < len; i++ ) { + if ( (matcher = Expr.relative[ tokens[i].type ]) ) { + matchers = [ addCombinator(elementMatcher( matchers ), matcher) ]; + } else { + matcher = Expr.filter[ tokens[i].type ].apply( null, tokens[i].matches ); + + // Return special upon seeing a positional matcher + if ( matcher[ expando ] ) { + // Find the next relative operator (if any) for proper handling + j = ++i; + for ( ; j < len; j++ ) { + if ( Expr.relative[ tokens[j].type ] ) { + break; + } + } + return setMatcher( + i > 1 && elementMatcher( matchers ), + i > 1 && toSelector( + // If the preceding token was a descendant combinator, insert an implicit any-element `*` + tokens.slice( 0, i - 1 ).concat({ value: tokens[ i - 2 ].type === " " ? "*" : "" }) + ).replace( rtrim, "$1" ), + matcher, + i < j && matcherFromTokens( tokens.slice( i, j ) ), + j < len && matcherFromTokens( (tokens = tokens.slice( j )) ), + j < len && toSelector( tokens ) + ); + } + matchers.push( matcher ); + } + } + + return elementMatcher( matchers ); +} + +function matcherFromGroupMatchers( elementMatchers, setMatchers ) { + var bySet = setMatchers.length > 0, + byElement = elementMatchers.length > 0, + superMatcher = function( seed, context, xml, results, outermost ) { + var elem, j, matcher, + matchedCount = 0, + i = "0", + unmatched = seed && [], + setMatched = [], + contextBackup = outermostContext, + // We must always have either seed elements or outermost context + elems = seed || byElement && Expr.find["TAG"]( "*", outermost ), + // Use integer dirruns iff this is the outermost matcher + dirrunsUnique = (dirruns += contextBackup == null ? 1 : Math.random() || 0.1), + len = elems.length; + + if ( outermost ) { + outermostContext = context === document || context || outermost; + } + + // Add elements passing elementMatchers directly to results + // Support: IE<9, Safari + // Tolerate NodeList properties (IE: "length"; Safari: ) matching elements by id + for ( ; i !== len && (elem = elems[i]) != null; i++ ) { + if ( byElement && elem ) { + j = 0; + if ( !context && elem.ownerDocument !== document ) { + setDocument( elem ); + xml = !documentIsHTML; + } + while ( (matcher = elementMatchers[j++]) ) { + if ( matcher( elem, context || document, xml) ) { + results.push( elem ); + break; + } + } + if ( outermost ) { + dirruns = dirrunsUnique; + } + } + + // Track unmatched elements for set filters + if ( bySet ) { + // They will have gone through all possible matchers + if ( (elem = !matcher && elem) ) { + matchedCount--; + } + + // Lengthen the array for every element, matched or not + if ( seed ) { + unmatched.push( elem ); + } + } + } + + // `i` is now the count of elements visited above, and adding it to `matchedCount` + // makes the latter nonnegative. + matchedCount += i; + + // Apply set filters to unmatched elements + // NOTE: This can be skipped if there are no unmatched elements (i.e., `matchedCount` + // equals `i`), unless we didn't visit _any_ elements in the above loop because we have + // no element matchers and no seed. + // Incrementing an initially-string "0" `i` allows `i` to remain a string only in that + // case, which will result in a "00" `matchedCount` that differs from `i` but is also + // numerically zero. + if ( bySet && i !== matchedCount ) { + j = 0; + while ( (matcher = setMatchers[j++]) ) { + matcher( unmatched, setMatched, context, xml ); + } + + if ( seed ) { + // Reintegrate element matches to eliminate the need for sorting + if ( matchedCount > 0 ) { + while ( i-- ) { + if ( !(unmatched[i] || setMatched[i]) ) { + setMatched[i] = pop.call( results ); + } + } + } + + // Discard index placeholder values to get only actual matches + setMatched = condense( setMatched ); + } + + // Add matches to results + push.apply( results, setMatched ); + + // Seedless set matches succeeding multiple successful matchers stipulate sorting + if ( outermost && !seed && setMatched.length > 0 && + ( matchedCount + setMatchers.length ) > 1 ) { + + Sizzle.uniqueSort( results ); + } + } + + // Override manipulation of globals by nested matchers + if ( outermost ) { + dirruns = dirrunsUnique; + outermostContext = contextBackup; + } + + return unmatched; + }; + + return bySet ? + markFunction( superMatcher ) : + superMatcher; +} + +compile = Sizzle.compile = function( selector, match /* Internal Use Only */ ) { + var i, + setMatchers = [], + elementMatchers = [], + cached = compilerCache[ selector + " " ]; + + if ( !cached ) { + // Generate a function of recursive functions that can be used to check each element + if ( !match ) { + match = tokenize( selector ); + } + i = match.length; + while ( i-- ) { + cached = matcherFromTokens( match[i] ); + if ( cached[ expando ] ) { + setMatchers.push( cached ); + } else { + elementMatchers.push( cached ); + } + } + + // Cache the compiled function + cached = compilerCache( selector, matcherFromGroupMatchers( elementMatchers, setMatchers ) ); + + // Save selector and tokenization + cached.selector = selector; + } + return cached; +}; + +/** + * A low-level selection function that works with Sizzle's compiled + * selector functions + * @param {String|Function} selector A selector or a pre-compiled + * selector function built with Sizzle.compile + * @param {Element} context + * @param {Array} [results] + * @param {Array} [seed] A set of elements to match against + */ +select = Sizzle.select = function( selector, context, results, seed ) { + var i, tokens, token, type, find, + compiled = typeof selector === "function" && selector, + match = !seed && tokenize( (selector = compiled.selector || selector) ); + + results = results || []; + + // Try to minimize operations if there is only one selector in the list and no seed + // (the latter of which guarantees us context) + if ( match.length === 1 ) { + + // Reduce context if the leading compound selector is an ID + tokens = match[0] = match[0].slice( 0 ); + if ( tokens.length > 2 && (token = tokens[0]).type === "ID" && + context.nodeType === 9 && documentIsHTML && Expr.relative[ tokens[1].type ] ) { + + context = ( Expr.find["ID"]( token.matches[0].replace(runescape, funescape), context ) || [] )[0]; + if ( !context ) { + return results; + + // Precompiled matchers will still verify ancestry, so step up a level + } else if ( compiled ) { + context = context.parentNode; + } + + selector = selector.slice( tokens.shift().value.length ); + } + + // Fetch a seed set for right-to-left matching + i = matchExpr["needsContext"].test( selector ) ? 0 : tokens.length; + while ( i-- ) { + token = tokens[i]; + + // Abort if we hit a combinator + if ( Expr.relative[ (type = token.type) ] ) { + break; + } + if ( (find = Expr.find[ type ]) ) { + // Search, expanding context for leading sibling combinators + if ( (seed = find( + token.matches[0].replace( runescape, funescape ), + rsibling.test( tokens[0].type ) && testContext( context.parentNode ) || context + )) ) { + + // If seed is empty or no tokens remain, we can return early + tokens.splice( i, 1 ); + selector = seed.length && toSelector( tokens ); + if ( !selector ) { + push.apply( results, seed ); + return results; + } + + break; + } + } + } + } + + // Compile and execute a filtering function if one is not provided + // Provide `match` to avoid retokenization if we modified the selector above + ( compiled || compile( selector, match ) )( + seed, + context, + !documentIsHTML, + results, + !context || rsibling.test( selector ) && testContext( context.parentNode ) || context + ); + return results; +}; + +// One-time assignments + +// Sort stability +support.sortStable = expando.split("").sort( sortOrder ).join("") === expando; + +// Support: Chrome 14-35+ +// Always assume duplicates if they aren't passed to the comparison function +support.detectDuplicates = !!hasDuplicate; + +// Initialize against the default document +setDocument(); + +// Support: Webkit<537.32 - Safari 6.0.3/Chrome 25 (fixed in Chrome 27) +// Detached nodes confoundingly follow *each other* +support.sortDetached = assert(function( el ) { + // Should return 1, but returns 4 (following) + return el.compareDocumentPosition( document.createElement("fieldset") ) & 1; +}); + +// Support: IE<8 +// Prevent attribute/property "interpolation" +// https://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx +if ( !assert(function( el ) { + el.innerHTML = ""; + return el.firstChild.getAttribute("href") === "#" ; +}) ) { + addHandle( "type|href|height|width", function( elem, name, isXML ) { + if ( !isXML ) { + return elem.getAttribute( name, name.toLowerCase() === "type" ? 1 : 2 ); + } + }); +} + +// Support: IE<9 +// Use defaultValue in place of getAttribute("value") +if ( !support.attributes || !assert(function( el ) { + el.innerHTML = ""; + el.firstChild.setAttribute( "value", "" ); + return el.firstChild.getAttribute( "value" ) === ""; +}) ) { + addHandle( "value", function( elem, name, isXML ) { + if ( !isXML && elem.nodeName.toLowerCase() === "input" ) { + return elem.defaultValue; + } + }); +} + +// Support: IE<9 +// Use getAttributeNode to fetch booleans when getAttribute lies +if ( !assert(function( el ) { + return el.getAttribute("disabled") == null; +}) ) { + addHandle( booleans, function( elem, name, isXML ) { + var val; + if ( !isXML ) { + return elem[ name ] === true ? name.toLowerCase() : + (val = elem.getAttributeNode( name )) && val.specified ? + val.value : + null; + } + }); +} + +return Sizzle; + +})( window ); + + + +jQuery.find = Sizzle; +jQuery.expr = Sizzle.selectors; + +// Deprecated +jQuery.expr[ ":" ] = jQuery.expr.pseudos; +jQuery.uniqueSort = jQuery.unique = Sizzle.uniqueSort; +jQuery.text = Sizzle.getText; +jQuery.isXMLDoc = Sizzle.isXML; +jQuery.contains = Sizzle.contains; +jQuery.escapeSelector = Sizzle.escape; + + + + +var dir = function( elem, dir, until ) { + var matched = [], + truncate = until !== undefined; + + while ( ( elem = elem[ dir ] ) && elem.nodeType !== 9 ) { + if ( elem.nodeType === 1 ) { + if ( truncate && jQuery( elem ).is( until ) ) { + break; + } + matched.push( elem ); + } + } + return matched; +}; + + +var siblings = function( n, elem ) { + var matched = []; + + for ( ; n; n = n.nextSibling ) { + if ( n.nodeType === 1 && n !== elem ) { + matched.push( n ); + } + } + + return matched; +}; + + +var rneedsContext = jQuery.expr.match.needsContext; + + + +function nodeName( elem, name ) { + + return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase(); + +}; +var rsingleTag = ( /^<([a-z][^\/\0>:\x20\t\r\n\f]*)[\x20\t\r\n\f]*\/?>(?:<\/\1>|)$/i ); + + + +var risSimple = /^.[^:#\[\.,]*$/; + +// Implement the identical functionality for filter and not +function winnow( elements, qualifier, not ) { + if ( jQuery.isFunction( qualifier ) ) { + return jQuery.grep( elements, function( elem, i ) { + return !!qualifier.call( elem, i, elem ) !== not; + } ); + } + + // Single element + if ( qualifier.nodeType ) { + return jQuery.grep( elements, function( elem ) { + return ( elem === qualifier ) !== not; + } ); + } + + // Arraylike of elements (jQuery, arguments, Array) + if ( typeof qualifier !== "string" ) { + return jQuery.grep( elements, function( elem ) { + return ( indexOf.call( qualifier, elem ) > -1 ) !== not; + } ); + } + + // Simple selector that can be filtered directly, removing non-Elements + if ( risSimple.test( qualifier ) ) { + return jQuery.filter( qualifier, elements, not ); + } + + // Complex selector, compare the two sets, removing non-Elements + qualifier = jQuery.filter( qualifier, elements ); + return jQuery.grep( elements, function( elem ) { + return ( indexOf.call( qualifier, elem ) > -1 ) !== not && elem.nodeType === 1; + } ); +} + +jQuery.filter = function( expr, elems, not ) { + var elem = elems[ 0 ]; + + if ( not ) { + expr = ":not(" + expr + ")"; + } + + if ( elems.length === 1 && elem.nodeType === 1 ) { + return jQuery.find.matchesSelector( elem, expr ) ? [ elem ] : []; + } + + return jQuery.find.matches( expr, jQuery.grep( elems, function( elem ) { + return elem.nodeType === 1; + } ) ); +}; + +jQuery.fn.extend( { + find: function( selector ) { + var i, ret, + len = this.length, + self = this; + + if ( typeof selector !== "string" ) { + return this.pushStack( jQuery( selector ).filter( function() { + for ( i = 0; i < len; i++ ) { + if ( jQuery.contains( self[ i ], this ) ) { + return true; + } + } + } ) ); + } + + ret = this.pushStack( [] ); + + for ( i = 0; i < len; i++ ) { + jQuery.find( selector, self[ i ], ret ); + } + + return len > 1 ? jQuery.uniqueSort( ret ) : ret; + }, + filter: function( selector ) { + return this.pushStack( winnow( this, selector || [], false ) ); + }, + not: function( selector ) { + return this.pushStack( winnow( this, selector || [], true ) ); + }, + is: function( selector ) { + return !!winnow( + this, + + // If this is a positional/relative selector, check membership in the returned set + // so $("p:first").is("p:last") won't return true for a doc with two "p". + typeof selector === "string" && rneedsContext.test( selector ) ? + jQuery( selector ) : + selector || [], + false + ).length; + } +} ); + + +// Initialize a jQuery object + + +// A central reference to the root jQuery(document) +var rootjQuery, + + // A simple way to check for HTML strings + // Prioritize #id over to avoid XSS via location.hash (#9521) + // Strict HTML recognition (#11290: must start with <) + // Shortcut simple #id case for speed + rquickExpr = /^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]+))$/, + + init = jQuery.fn.init = function( selector, context, root ) { + var match, elem; + + // HANDLE: $(""), $(null), $(undefined), $(false) + if ( !selector ) { + return this; + } + + // Method init() accepts an alternate rootjQuery + // so migrate can support jQuery.sub (gh-2101) + root = root || rootjQuery; + + // Handle HTML strings + if ( typeof selector === "string" ) { + if ( selector[ 0 ] === "<" && + selector[ selector.length - 1 ] === ">" && + selector.length >= 3 ) { + + // Assume that strings that start and end with <> are HTML and skip the regex check + match = [ null, selector, null ]; + + } else { + match = rquickExpr.exec( selector ); + } + + // Match html or make sure no context is specified for #id + if ( match && ( match[ 1 ] || !context ) ) { + + // HANDLE: $(html) -> $(array) + if ( match[ 1 ] ) { + context = context instanceof jQuery ? context[ 0 ] : context; + + // Option to run scripts is true for back-compat + // Intentionally let the error be thrown if parseHTML is not present + jQuery.merge( this, jQuery.parseHTML( + match[ 1 ], + context && context.nodeType ? context.ownerDocument || context : document, + true + ) ); + + // HANDLE: $(html, props) + if ( rsingleTag.test( match[ 1 ] ) && jQuery.isPlainObject( context ) ) { + for ( match in context ) { + + // Properties of context are called as methods if possible + if ( jQuery.isFunction( this[ match ] ) ) { + this[ match ]( context[ match ] ); + + // ...and otherwise set as attributes + } else { + this.attr( match, context[ match ] ); + } + } + } + + return this; + + // HANDLE: $(#id) + } else { + elem = document.getElementById( match[ 2 ] ); + + if ( elem ) { + + // Inject the element directly into the jQuery object + this[ 0 ] = elem; + this.length = 1; + } + return this; + } + + // HANDLE: $(expr, $(...)) + } else if ( !context || context.jquery ) { + return ( context || root ).find( selector ); + + // HANDLE: $(expr, context) + // (which is just equivalent to: $(context).find(expr) + } else { + return this.constructor( context ).find( selector ); + } + + // HANDLE: $(DOMElement) + } else if ( selector.nodeType ) { + this[ 0 ] = selector; + this.length = 1; + return this; + + // HANDLE: $(function) + // Shortcut for document ready + } else if ( jQuery.isFunction( selector ) ) { + return root.ready !== undefined ? + root.ready( selector ) : + + // Execute immediately if ready is not present + selector( jQuery ); + } + + return jQuery.makeArray( selector, this ); + }; + +// Give the init function the jQuery prototype for later instantiation +init.prototype = jQuery.fn; + +// Initialize central reference +rootjQuery = jQuery( document ); + + +var rparentsprev = /^(?:parents|prev(?:Until|All))/, + + // Methods guaranteed to produce a unique set when starting from a unique set + guaranteedUnique = { + children: true, + contents: true, + next: true, + prev: true + }; + +jQuery.fn.extend( { + has: function( target ) { + var targets = jQuery( target, this ), + l = targets.length; + + return this.filter( function() { + var i = 0; + for ( ; i < l; i++ ) { + if ( jQuery.contains( this, targets[ i ] ) ) { + return true; + } + } + } ); + }, + + closest: function( selectors, context ) { + var cur, + i = 0, + l = this.length, + matched = [], + targets = typeof selectors !== "string" && jQuery( selectors ); + + // Positional selectors never match, since there's no _selection_ context + if ( !rneedsContext.test( selectors ) ) { + for ( ; i < l; i++ ) { + for ( cur = this[ i ]; cur && cur !== context; cur = cur.parentNode ) { + + // Always skip document fragments + if ( cur.nodeType < 11 && ( targets ? + targets.index( cur ) > -1 : + + // Don't pass non-elements to Sizzle + cur.nodeType === 1 && + jQuery.find.matchesSelector( cur, selectors ) ) ) { + + matched.push( cur ); + break; + } + } + } + } + + return this.pushStack( matched.length > 1 ? jQuery.uniqueSort( matched ) : matched ); + }, + + // Determine the position of an element within the set + index: function( elem ) { + + // No argument, return index in parent + if ( !elem ) { + return ( this[ 0 ] && this[ 0 ].parentNode ) ? this.first().prevAll().length : -1; + } + + // Index in selector + if ( typeof elem === "string" ) { + return indexOf.call( jQuery( elem ), this[ 0 ] ); + } + + // Locate the position of the desired element + return indexOf.call( this, + + // If it receives a jQuery object, the first element is used + elem.jquery ? elem[ 0 ] : elem + ); + }, + + add: function( selector, context ) { + return this.pushStack( + jQuery.uniqueSort( + jQuery.merge( this.get(), jQuery( selector, context ) ) + ) + ); + }, + + addBack: function( selector ) { + return this.add( selector == null ? + this.prevObject : this.prevObject.filter( selector ) + ); + } +} ); + +function sibling( cur, dir ) { + while ( ( cur = cur[ dir ] ) && cur.nodeType !== 1 ) {} + return cur; +} + +jQuery.each( { + parent: function( elem ) { + var parent = elem.parentNode; + return parent && parent.nodeType !== 11 ? parent : null; + }, + parents: function( elem ) { + return dir( elem, "parentNode" ); + }, + parentsUntil: function( elem, i, until ) { + return dir( elem, "parentNode", until ); + }, + next: function( elem ) { + return sibling( elem, "nextSibling" ); + }, + prev: function( elem ) { + return sibling( elem, "previousSibling" ); + }, + nextAll: function( elem ) { + return dir( elem, "nextSibling" ); + }, + prevAll: function( elem ) { + return dir( elem, "previousSibling" ); + }, + nextUntil: function( elem, i, until ) { + return dir( elem, "nextSibling", until ); + }, + prevUntil: function( elem, i, until ) { + return dir( elem, "previousSibling", until ); + }, + siblings: function( elem ) { + return siblings( ( elem.parentNode || {} ).firstChild, elem ); + }, + children: function( elem ) { + return siblings( elem.firstChild ); + }, + contents: function( elem ) { + if ( nodeName( elem, "iframe" ) ) { + return elem.contentDocument; + } + + // Support: IE 9 - 11 only, iOS 7 only, Android Browser <=4.3 only + // Treat the template element as a regular one in browsers that + // don't support it. + if ( nodeName( elem, "template" ) ) { + elem = elem.content || elem; + } + + return jQuery.merge( [], elem.childNodes ); + } +}, function( name, fn ) { + jQuery.fn[ name ] = function( until, selector ) { + var matched = jQuery.map( this, fn, until ); + + if ( name.slice( -5 ) !== "Until" ) { + selector = until; + } + + if ( selector && typeof selector === "string" ) { + matched = jQuery.filter( selector, matched ); + } + + if ( this.length > 1 ) { + + // Remove duplicates + if ( !guaranteedUnique[ name ] ) { + jQuery.uniqueSort( matched ); + } + + // Reverse order for parents* and prev-derivatives + if ( rparentsprev.test( name ) ) { + matched.reverse(); + } + } + + return this.pushStack( matched ); + }; +} ); +var rnothtmlwhite = ( /[^\x20\t\r\n\f]+/g ); + + + +// Convert String-formatted options into Object-formatted ones +function createOptions( options ) { + var object = {}; + jQuery.each( options.match( rnothtmlwhite ) || [], function( _, flag ) { + object[ flag ] = true; + } ); + return object; +} + +/* + * Create a callback list using the following parameters: + * + * options: an optional list of space-separated options that will change how + * the callback list behaves or a more traditional option object + * + * By default a callback list will act like an event callback list and can be + * "fired" multiple times. + * + * Possible options: + * + * once: will ensure the callback list can only be fired once (like a Deferred) + * + * memory: will keep track of previous values and will call any callback added + * after the list has been fired right away with the latest "memorized" + * values (like a Deferred) + * + * unique: will ensure a callback can only be added once (no duplicate in the list) + * + * stopOnFalse: interrupt callings when a callback returns false + * + */ +jQuery.Callbacks = function( options ) { + + // Convert options from String-formatted to Object-formatted if needed + // (we check in cache first) + options = typeof options === "string" ? + createOptions( options ) : + jQuery.extend( {}, options ); + + var // Flag to know if list is currently firing + firing, + + // Last fire value for non-forgettable lists + memory, + + // Flag to know if list was already fired + fired, + + // Flag to prevent firing + locked, + + // Actual callback list + list = [], + + // Queue of execution data for repeatable lists + queue = [], + + // Index of currently firing callback (modified by add/remove as needed) + firingIndex = -1, + + // Fire callbacks + fire = function() { + + // Enforce single-firing + locked = locked || options.once; + + // Execute callbacks for all pending executions, + // respecting firingIndex overrides and runtime changes + fired = firing = true; + for ( ; queue.length; firingIndex = -1 ) { + memory = queue.shift(); + while ( ++firingIndex < list.length ) { + + // Run callback and check for early termination + if ( list[ firingIndex ].apply( memory[ 0 ], memory[ 1 ] ) === false && + options.stopOnFalse ) { + + // Jump to end and forget the data so .add doesn't re-fire + firingIndex = list.length; + memory = false; + } + } + } + + // Forget the data if we're done with it + if ( !options.memory ) { + memory = false; + } + + firing = false; + + // Clean up if we're done firing for good + if ( locked ) { + + // Keep an empty list if we have data for future add calls + if ( memory ) { + list = []; + + // Otherwise, this object is spent + } else { + list = ""; + } + } + }, + + // Actual Callbacks object + self = { + + // Add a callback or a collection of callbacks to the list + add: function() { + if ( list ) { + + // If we have memory from a past run, we should fire after adding + if ( memory && !firing ) { + firingIndex = list.length - 1; + queue.push( memory ); + } + + ( function add( args ) { + jQuery.each( args, function( _, arg ) { + if ( jQuery.isFunction( arg ) ) { + if ( !options.unique || !self.has( arg ) ) { + list.push( arg ); + } + } else if ( arg && arg.length && jQuery.type( arg ) !== "string" ) { + + // Inspect recursively + add( arg ); + } + } ); + } )( arguments ); + + if ( memory && !firing ) { + fire(); + } + } + return this; + }, + + // Remove a callback from the list + remove: function() { + jQuery.each( arguments, function( _, arg ) { + var index; + while ( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) { + list.splice( index, 1 ); + + // Handle firing indexes + if ( index <= firingIndex ) { + firingIndex--; + } + } + } ); + return this; + }, + + // Check if a given callback is in the list. + // If no argument is given, return whether or not list has callbacks attached. + has: function( fn ) { + return fn ? + jQuery.inArray( fn, list ) > -1 : + list.length > 0; + }, + + // Remove all callbacks from the list + empty: function() { + if ( list ) { + list = []; + } + return this; + }, + + // Disable .fire and .add + // Abort any current/pending executions + // Clear all callbacks and values + disable: function() { + locked = queue = []; + list = memory = ""; + return this; + }, + disabled: function() { + return !list; + }, + + // Disable .fire + // Also disable .add unless we have memory (since it would have no effect) + // Abort any pending executions + lock: function() { + locked = queue = []; + if ( !memory && !firing ) { + list = memory = ""; + } + return this; + }, + locked: function() { + return !!locked; + }, + + // Call all callbacks with the given context and arguments + fireWith: function( context, args ) { + if ( !locked ) { + args = args || []; + args = [ context, args.slice ? args.slice() : args ]; + queue.push( args ); + if ( !firing ) { + fire(); + } + } + return this; + }, + + // Call all the callbacks with the given arguments + fire: function() { + self.fireWith( this, arguments ); + return this; + }, + + // To know if the callbacks have already been called at least once + fired: function() { + return !!fired; + } + }; + + return self; +}; + + +function Identity( v ) { + return v; +} +function Thrower( ex ) { + throw ex; +} + +function adoptValue( value, resolve, reject, noValue ) { + var method; + + try { + + // Check for promise aspect first to privilege synchronous behavior + if ( value && jQuery.isFunction( ( method = value.promise ) ) ) { + method.call( value ).done( resolve ).fail( reject ); + + // Other thenables + } else if ( value && jQuery.isFunction( ( method = value.then ) ) ) { + method.call( value, resolve, reject ); + + // Other non-thenables + } else { + + // Control `resolve` arguments by letting Array#slice cast boolean `noValue` to integer: + // * false: [ value ].slice( 0 ) => resolve( value ) + // * true: [ value ].slice( 1 ) => resolve() + resolve.apply( undefined, [ value ].slice( noValue ) ); + } + + // For Promises/A+, convert exceptions into rejections + // Since jQuery.when doesn't unwrap thenables, we can skip the extra checks appearing in + // Deferred#then to conditionally suppress rejection. + } catch ( value ) { + + // Support: Android 4.0 only + // Strict mode functions invoked without .call/.apply get global-object context + reject.apply( undefined, [ value ] ); + } +} + +jQuery.extend( { + + Deferred: function( func ) { + var tuples = [ + + // action, add listener, callbacks, + // ... .then handlers, argument index, [final state] + [ "notify", "progress", jQuery.Callbacks( "memory" ), + jQuery.Callbacks( "memory" ), 2 ], + [ "resolve", "done", jQuery.Callbacks( "once memory" ), + jQuery.Callbacks( "once memory" ), 0, "resolved" ], + [ "reject", "fail", jQuery.Callbacks( "once memory" ), + jQuery.Callbacks( "once memory" ), 1, "rejected" ] + ], + state = "pending", + promise = { + state: function() { + return state; + }, + always: function() { + deferred.done( arguments ).fail( arguments ); + return this; + }, + "catch": function( fn ) { + return promise.then( null, fn ); + }, + + // Keep pipe for back-compat + pipe: function( /* fnDone, fnFail, fnProgress */ ) { + var fns = arguments; + + return jQuery.Deferred( function( newDefer ) { + jQuery.each( tuples, function( i, tuple ) { + + // Map tuples (progress, done, fail) to arguments (done, fail, progress) + var fn = jQuery.isFunction( fns[ tuple[ 4 ] ] ) && fns[ tuple[ 4 ] ]; + + // deferred.progress(function() { bind to newDefer or newDefer.notify }) + // deferred.done(function() { bind to newDefer or newDefer.resolve }) + // deferred.fail(function() { bind to newDefer or newDefer.reject }) + deferred[ tuple[ 1 ] ]( function() { + var returned = fn && fn.apply( this, arguments ); + if ( returned && jQuery.isFunction( returned.promise ) ) { + returned.promise() + .progress( newDefer.notify ) + .done( newDefer.resolve ) + .fail( newDefer.reject ); + } else { + newDefer[ tuple[ 0 ] + "With" ]( + this, + fn ? [ returned ] : arguments + ); + } + } ); + } ); + fns = null; + } ).promise(); + }, + then: function( onFulfilled, onRejected, onProgress ) { + var maxDepth = 0; + function resolve( depth, deferred, handler, special ) { + return function() { + var that = this, + args = arguments, + mightThrow = function() { + var returned, then; + + // Support: Promises/A+ section 2.3.3.3.3 + // https://promisesaplus.com/#point-59 + // Ignore double-resolution attempts + if ( depth < maxDepth ) { + return; + } + + returned = handler.apply( that, args ); + + // Support: Promises/A+ section 2.3.1 + // https://promisesaplus.com/#point-48 + if ( returned === deferred.promise() ) { + throw new TypeError( "Thenable self-resolution" ); + } + + // Support: Promises/A+ sections 2.3.3.1, 3.5 + // https://promisesaplus.com/#point-54 + // https://promisesaplus.com/#point-75 + // Retrieve `then` only once + then = returned && + + // Support: Promises/A+ section 2.3.4 + // https://promisesaplus.com/#point-64 + // Only check objects and functions for thenability + ( typeof returned === "object" || + typeof returned === "function" ) && + returned.then; + + // Handle a returned thenable + if ( jQuery.isFunction( then ) ) { + + // Special processors (notify) just wait for resolution + if ( special ) { + then.call( + returned, + resolve( maxDepth, deferred, Identity, special ), + resolve( maxDepth, deferred, Thrower, special ) + ); + + // Normal processors (resolve) also hook into progress + } else { + + // ...and disregard older resolution values + maxDepth++; + + then.call( + returned, + resolve( maxDepth, deferred, Identity, special ), + resolve( maxDepth, deferred, Thrower, special ), + resolve( maxDepth, deferred, Identity, + deferred.notifyWith ) + ); + } + + // Handle all other returned values + } else { + + // Only substitute handlers pass on context + // and multiple values (non-spec behavior) + if ( handler !== Identity ) { + that = undefined; + args = [ returned ]; + } + + // Process the value(s) + // Default process is resolve + ( special || deferred.resolveWith )( that, args ); + } + }, + + // Only normal processors (resolve) catch and reject exceptions + process = special ? + mightThrow : + function() { + try { + mightThrow(); + } catch ( e ) { + + if ( jQuery.Deferred.exceptionHook ) { + jQuery.Deferred.exceptionHook( e, + process.stackTrace ); + } + + // Support: Promises/A+ section 2.3.3.3.4.1 + // https://promisesaplus.com/#point-61 + // Ignore post-resolution exceptions + if ( depth + 1 >= maxDepth ) { + + // Only substitute handlers pass on context + // and multiple values (non-spec behavior) + if ( handler !== Thrower ) { + that = undefined; + args = [ e ]; + } + + deferred.rejectWith( that, args ); + } + } + }; + + // Support: Promises/A+ section 2.3.3.3.1 + // https://promisesaplus.com/#point-57 + // Re-resolve promises immediately to dodge false rejection from + // subsequent errors + if ( depth ) { + process(); + } else { + + // Call an optional hook to record the stack, in case of exception + // since it's otherwise lost when execution goes async + if ( jQuery.Deferred.getStackHook ) { + process.stackTrace = jQuery.Deferred.getStackHook(); + } + window.setTimeout( process ); + } + }; + } + + return jQuery.Deferred( function( newDefer ) { + + // progress_handlers.add( ... ) + tuples[ 0 ][ 3 ].add( + resolve( + 0, + newDefer, + jQuery.isFunction( onProgress ) ? + onProgress : + Identity, + newDefer.notifyWith + ) + ); + + // fulfilled_handlers.add( ... ) + tuples[ 1 ][ 3 ].add( + resolve( + 0, + newDefer, + jQuery.isFunction( onFulfilled ) ? + onFulfilled : + Identity + ) + ); + + // rejected_handlers.add( ... ) + tuples[ 2 ][ 3 ].add( + resolve( + 0, + newDefer, + jQuery.isFunction( onRejected ) ? + onRejected : + Thrower + ) + ); + } ).promise(); + }, + + // Get a promise for this deferred + // If obj is provided, the promise aspect is added to the object + promise: function( obj ) { + return obj != null ? jQuery.extend( obj, promise ) : promise; + } + }, + deferred = {}; + + // Add list-specific methods + jQuery.each( tuples, function( i, tuple ) { + var list = tuple[ 2 ], + stateString = tuple[ 5 ]; + + // promise.progress = list.add + // promise.done = list.add + // promise.fail = list.add + promise[ tuple[ 1 ] ] = list.add; + + // Handle state + if ( stateString ) { + list.add( + function() { + + // state = "resolved" (i.e., fulfilled) + // state = "rejected" + state = stateString; + }, + + // rejected_callbacks.disable + // fulfilled_callbacks.disable + tuples[ 3 - i ][ 2 ].disable, + + // progress_callbacks.lock + tuples[ 0 ][ 2 ].lock + ); + } + + // progress_handlers.fire + // fulfilled_handlers.fire + // rejected_handlers.fire + list.add( tuple[ 3 ].fire ); + + // deferred.notify = function() { deferred.notifyWith(...) } + // deferred.resolve = function() { deferred.resolveWith(...) } + // deferred.reject = function() { deferred.rejectWith(...) } + deferred[ tuple[ 0 ] ] = function() { + deferred[ tuple[ 0 ] + "With" ]( this === deferred ? undefined : this, arguments ); + return this; + }; + + // deferred.notifyWith = list.fireWith + // deferred.resolveWith = list.fireWith + // deferred.rejectWith = list.fireWith + deferred[ tuple[ 0 ] + "With" ] = list.fireWith; + } ); + + // Make the deferred a promise + promise.promise( deferred ); + + // Call given func if any + if ( func ) { + func.call( deferred, deferred ); + } + + // All done! + return deferred; + }, + + // Deferred helper + when: function( singleValue ) { + var + + // count of uncompleted subordinates + remaining = arguments.length, + + // count of unprocessed arguments + i = remaining, + + // subordinate fulfillment data + resolveContexts = Array( i ), + resolveValues = slice.call( arguments ), + + // the master Deferred + master = jQuery.Deferred(), + + // subordinate callback factory + updateFunc = function( i ) { + return function( value ) { + resolveContexts[ i ] = this; + resolveValues[ i ] = arguments.length > 1 ? slice.call( arguments ) : value; + if ( !( --remaining ) ) { + master.resolveWith( resolveContexts, resolveValues ); + } + }; + }; + + // Single- and empty arguments are adopted like Promise.resolve + if ( remaining <= 1 ) { + adoptValue( singleValue, master.done( updateFunc( i ) ).resolve, master.reject, + !remaining ); + + // Use .then() to unwrap secondary thenables (cf. gh-3000) + if ( master.state() === "pending" || + jQuery.isFunction( resolveValues[ i ] && resolveValues[ i ].then ) ) { + + return master.then(); + } + } + + // Multiple arguments are aggregated like Promise.all array elements + while ( i-- ) { + adoptValue( resolveValues[ i ], updateFunc( i ), master.reject ); + } + + return master.promise(); + } +} ); + + +// These usually indicate a programmer mistake during development, +// warn about them ASAP rather than swallowing them by default. +var rerrorNames = /^(Eval|Internal|Range|Reference|Syntax|Type|URI)Error$/; + +jQuery.Deferred.exceptionHook = function( error, stack ) { + + // Support: IE 8 - 9 only + // Console exists when dev tools are open, which can happen at any time + if ( window.console && window.console.warn && error && rerrorNames.test( error.name ) ) { + window.console.warn( "jQuery.Deferred exception: " + error.message, error.stack, stack ); + } +}; + + + + +jQuery.readyException = function( error ) { + window.setTimeout( function() { + throw error; + } ); +}; + + + + +// The deferred used on DOM ready +var readyList = jQuery.Deferred(); + +jQuery.fn.ready = function( fn ) { + + readyList + .then( fn ) + + // Wrap jQuery.readyException in a function so that the lookup + // happens at the time of error handling instead of callback + // registration. + .catch( function( error ) { + jQuery.readyException( error ); + } ); + + return this; +}; + +jQuery.extend( { + + // Is the DOM ready to be used? Set to true once it occurs. + isReady: false, + + // A counter to track how many items to wait for before + // the ready event fires. See #6781 + readyWait: 1, + + // Handle when the DOM is ready + ready: function( wait ) { + + // Abort if there are pending holds or we're already ready + if ( wait === true ? --jQuery.readyWait : jQuery.isReady ) { + return; + } + + // Remember that the DOM is ready + jQuery.isReady = true; + + // If a normal DOM Ready event fired, decrement, and wait if need be + if ( wait !== true && --jQuery.readyWait > 0 ) { + return; + } + + // If there are functions bound, to execute + readyList.resolveWith( document, [ jQuery ] ); + } +} ); + +jQuery.ready.then = readyList.then; + +// The ready event handler and self cleanup method +function completed() { + document.removeEventListener( "DOMContentLoaded", completed ); + window.removeEventListener( "load", completed ); + jQuery.ready(); +} + +// Catch cases where $(document).ready() is called +// after the browser event has already occurred. +// Support: IE <=9 - 10 only +// Older IE sometimes signals "interactive" too soon +if ( document.readyState === "complete" || + ( document.readyState !== "loading" && !document.documentElement.doScroll ) ) { + + // Handle it asynchronously to allow scripts the opportunity to delay ready + window.setTimeout( jQuery.ready ); + +} else { + + // Use the handy event callback + document.addEventListener( "DOMContentLoaded", completed ); + + // A fallback to window.onload, that will always work + window.addEventListener( "load", completed ); +} + + + + +// Multifunctional method to get and set values of a collection +// The value/s can optionally be executed if it's a function +var access = function( elems, fn, key, value, chainable, emptyGet, raw ) { + var i = 0, + len = elems.length, + bulk = key == null; + + // Sets many values + if ( jQuery.type( key ) === "object" ) { + chainable = true; + for ( i in key ) { + access( elems, fn, i, key[ i ], true, emptyGet, raw ); + } + + // Sets one value + } else if ( value !== undefined ) { + chainable = true; + + if ( !jQuery.isFunction( value ) ) { + raw = true; + } + + if ( bulk ) { + + // Bulk operations run against the entire set + if ( raw ) { + fn.call( elems, value ); + fn = null; + + // ...except when executing function values + } else { + bulk = fn; + fn = function( elem, key, value ) { + return bulk.call( jQuery( elem ), value ); + }; + } + } + + if ( fn ) { + for ( ; i < len; i++ ) { + fn( + elems[ i ], key, raw ? + value : + value.call( elems[ i ], i, fn( elems[ i ], key ) ) + ); + } + } + } + + if ( chainable ) { + return elems; + } + + // Gets + if ( bulk ) { + return fn.call( elems ); + } + + return len ? fn( elems[ 0 ], key ) : emptyGet; +}; +var acceptData = function( owner ) { + + // Accepts only: + // - Node + // - Node.ELEMENT_NODE + // - Node.DOCUMENT_NODE + // - Object + // - Any + return owner.nodeType === 1 || owner.nodeType === 9 || !( +owner.nodeType ); +}; + + + + +function Data() { + this.expando = jQuery.expando + Data.uid++; +} + +Data.uid = 1; + +Data.prototype = { + + cache: function( owner ) { + + // Check if the owner object already has a cache + var value = owner[ this.expando ]; + + // If not, create one + if ( !value ) { + value = {}; + + // We can accept data for non-element nodes in modern browsers, + // but we should not, see #8335. + // Always return an empty object. + if ( acceptData( owner ) ) { + + // If it is a node unlikely to be stringify-ed or looped over + // use plain assignment + if ( owner.nodeType ) { + owner[ this.expando ] = value; + + // Otherwise secure it in a non-enumerable property + // configurable must be true to allow the property to be + // deleted when data is removed + } else { + Object.defineProperty( owner, this.expando, { + value: value, + configurable: true + } ); + } + } + } + + return value; + }, + set: function( owner, data, value ) { + var prop, + cache = this.cache( owner ); + + // Handle: [ owner, key, value ] args + // Always use camelCase key (gh-2257) + if ( typeof data === "string" ) { + cache[ jQuery.camelCase( data ) ] = value; + + // Handle: [ owner, { properties } ] args + } else { + + // Copy the properties one-by-one to the cache object + for ( prop in data ) { + cache[ jQuery.camelCase( prop ) ] = data[ prop ]; + } + } + return cache; + }, + get: function( owner, key ) { + return key === undefined ? + this.cache( owner ) : + + // Always use camelCase key (gh-2257) + owner[ this.expando ] && owner[ this.expando ][ jQuery.camelCase( key ) ]; + }, + access: function( owner, key, value ) { + + // In cases where either: + // + // 1. No key was specified + // 2. A string key was specified, but no value provided + // + // Take the "read" path and allow the get method to determine + // which value to return, respectively either: + // + // 1. The entire cache object + // 2. The data stored at the key + // + if ( key === undefined || + ( ( key && typeof key === "string" ) && value === undefined ) ) { + + return this.get( owner, key ); + } + + // When the key is not a string, or both a key and value + // are specified, set or extend (existing objects) with either: + // + // 1. An object of properties + // 2. A key and value + // + this.set( owner, key, value ); + + // Since the "set" path can have two possible entry points + // return the expected data based on which path was taken[*] + return value !== undefined ? value : key; + }, + remove: function( owner, key ) { + var i, + cache = owner[ this.expando ]; + + if ( cache === undefined ) { + return; + } + + if ( key !== undefined ) { + + // Support array or space separated string of keys + if ( Array.isArray( key ) ) { + + // If key is an array of keys... + // We always set camelCase keys, so remove that. + key = key.map( jQuery.camelCase ); + } else { + key = jQuery.camelCase( key ); + + // If a key with the spaces exists, use it. + // Otherwise, create an array by matching non-whitespace + key = key in cache ? + [ key ] : + ( key.match( rnothtmlwhite ) || [] ); + } + + i = key.length; + + while ( i-- ) { + delete cache[ key[ i ] ]; + } + } + + // Remove the expando if there's no more data + if ( key === undefined || jQuery.isEmptyObject( cache ) ) { + + // Support: Chrome <=35 - 45 + // Webkit & Blink performance suffers when deleting properties + // from DOM nodes, so set to undefined instead + // https://bugs.chromium.org/p/chromium/issues/detail?id=378607 (bug restricted) + if ( owner.nodeType ) { + owner[ this.expando ] = undefined; + } else { + delete owner[ this.expando ]; + } + } + }, + hasData: function( owner ) { + var cache = owner[ this.expando ]; + return cache !== undefined && !jQuery.isEmptyObject( cache ); + } +}; +var dataPriv = new Data(); + +var dataUser = new Data(); + + + +// Implementation Summary +// +// 1. Enforce API surface and semantic compatibility with 1.9.x branch +// 2. Improve the module's maintainability by reducing the storage +// paths to a single mechanism. +// 3. Use the same single mechanism to support "private" and "user" data. +// 4. _Never_ expose "private" data to user code (TODO: Drop _data, _removeData) +// 5. Avoid exposing implementation details on user objects (eg. expando properties) +// 6. Provide a clear path for implementation upgrade to WeakMap in 2014 + +var rbrace = /^(?:\{[\w\W]*\}|\[[\w\W]*\])$/, + rmultiDash = /[A-Z]/g; + +function getData( data ) { + if ( data === "true" ) { + return true; + } + + if ( data === "false" ) { + return false; + } + + if ( data === "null" ) { + return null; + } + + // Only convert to a number if it doesn't change the string + if ( data === +data + "" ) { + return +data; + } + + if ( rbrace.test( data ) ) { + return JSON.parse( data ); + } + + return data; +} + +function dataAttr( elem, key, data ) { + var name; + + // If nothing was found internally, try to fetch any + // data from the HTML5 data-* attribute + if ( data === undefined && elem.nodeType === 1 ) { + name = "data-" + key.replace( rmultiDash, "-$&" ).toLowerCase(); + data = elem.getAttribute( name ); + + if ( typeof data === "string" ) { + try { + data = getData( data ); + } catch ( e ) {} + + // Make sure we set the data so it isn't changed later + dataUser.set( elem, key, data ); + } else { + data = undefined; + } + } + return data; +} + +jQuery.extend( { + hasData: function( elem ) { + return dataUser.hasData( elem ) || dataPriv.hasData( elem ); + }, + + data: function( elem, name, data ) { + return dataUser.access( elem, name, data ); + }, + + removeData: function( elem, name ) { + dataUser.remove( elem, name ); + }, + + // TODO: Now that all calls to _data and _removeData have been replaced + // with direct calls to dataPriv methods, these can be deprecated. + _data: function( elem, name, data ) { + return dataPriv.access( elem, name, data ); + }, + + _removeData: function( elem, name ) { + dataPriv.remove( elem, name ); + } +} ); + +jQuery.fn.extend( { + data: function( key, value ) { + var i, name, data, + elem = this[ 0 ], + attrs = elem && elem.attributes; + + // Gets all values + if ( key === undefined ) { + if ( this.length ) { + data = dataUser.get( elem ); + + if ( elem.nodeType === 1 && !dataPriv.get( elem, "hasDataAttrs" ) ) { + i = attrs.length; + while ( i-- ) { + + // Support: IE 11 only + // The attrs elements can be null (#14894) + if ( attrs[ i ] ) { + name = attrs[ i ].name; + if ( name.indexOf( "data-" ) === 0 ) { + name = jQuery.camelCase( name.slice( 5 ) ); + dataAttr( elem, name, data[ name ] ); + } + } + } + dataPriv.set( elem, "hasDataAttrs", true ); + } + } + + return data; + } + + // Sets multiple values + if ( typeof key === "object" ) { + return this.each( function() { + dataUser.set( this, key ); + } ); + } + + return access( this, function( value ) { + var data; + + // The calling jQuery object (element matches) is not empty + // (and therefore has an element appears at this[ 0 ]) and the + // `value` parameter was not undefined. An empty jQuery object + // will result in `undefined` for elem = this[ 0 ] which will + // throw an exception if an attempt to read a data cache is made. + if ( elem && value === undefined ) { + + // Attempt to get data from the cache + // The key will always be camelCased in Data + data = dataUser.get( elem, key ); + if ( data !== undefined ) { + return data; + } + + // Attempt to "discover" the data in + // HTML5 custom data-* attrs + data = dataAttr( elem, key ); + if ( data !== undefined ) { + return data; + } + + // We tried really hard, but the data doesn't exist. + return; + } + + // Set the data... + this.each( function() { + + // We always store the camelCased key + dataUser.set( this, key, value ); + } ); + }, null, value, arguments.length > 1, null, true ); + }, + + removeData: function( key ) { + return this.each( function() { + dataUser.remove( this, key ); + } ); + } +} ); + + +jQuery.extend( { + queue: function( elem, type, data ) { + var queue; + + if ( elem ) { + type = ( type || "fx" ) + "queue"; + queue = dataPriv.get( elem, type ); + + // Speed up dequeue by getting out quickly if this is just a lookup + if ( data ) { + if ( !queue || Array.isArray( data ) ) { + queue = dataPriv.access( elem, type, jQuery.makeArray( data ) ); + } else { + queue.push( data ); + } + } + return queue || []; + } + }, + + dequeue: function( elem, type ) { + type = type || "fx"; + + var queue = jQuery.queue( elem, type ), + startLength = queue.length, + fn = queue.shift(), + hooks = jQuery._queueHooks( elem, type ), + next = function() { + jQuery.dequeue( elem, type ); + }; + + // If the fx queue is dequeued, always remove the progress sentinel + if ( fn === "inprogress" ) { + fn = queue.shift(); + startLength--; + } + + if ( fn ) { + + // Add a progress sentinel to prevent the fx queue from being + // automatically dequeued + if ( type === "fx" ) { + queue.unshift( "inprogress" ); + } + + // Clear up the last queue stop function + delete hooks.stop; + fn.call( elem, next, hooks ); + } + + if ( !startLength && hooks ) { + hooks.empty.fire(); + } + }, + + // Not public - generate a queueHooks object, or return the current one + _queueHooks: function( elem, type ) { + var key = type + "queueHooks"; + return dataPriv.get( elem, key ) || dataPriv.access( elem, key, { + empty: jQuery.Callbacks( "once memory" ).add( function() { + dataPriv.remove( elem, [ type + "queue", key ] ); + } ) + } ); + } +} ); + +jQuery.fn.extend( { + queue: function( type, data ) { + var setter = 2; + + if ( typeof type !== "string" ) { + data = type; + type = "fx"; + setter--; + } + + if ( arguments.length < setter ) { + return jQuery.queue( this[ 0 ], type ); + } + + return data === undefined ? + this : + this.each( function() { + var queue = jQuery.queue( this, type, data ); + + // Ensure a hooks for this queue + jQuery._queueHooks( this, type ); + + if ( type === "fx" && queue[ 0 ] !== "inprogress" ) { + jQuery.dequeue( this, type ); + } + } ); + }, + dequeue: function( type ) { + return this.each( function() { + jQuery.dequeue( this, type ); + } ); + }, + clearQueue: function( type ) { + return this.queue( type || "fx", [] ); + }, + + // Get a promise resolved when queues of a certain type + // are emptied (fx is the type by default) + promise: function( type, obj ) { + var tmp, + count = 1, + defer = jQuery.Deferred(), + elements = this, + i = this.length, + resolve = function() { + if ( !( --count ) ) { + defer.resolveWith( elements, [ elements ] ); + } + }; + + if ( typeof type !== "string" ) { + obj = type; + type = undefined; + } + type = type || "fx"; + + while ( i-- ) { + tmp = dataPriv.get( elements[ i ], type + "queueHooks" ); + if ( tmp && tmp.empty ) { + count++; + tmp.empty.add( resolve ); + } + } + resolve(); + return defer.promise( obj ); + } +} ); +var pnum = ( /[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/ ).source; + +var rcssNum = new RegExp( "^(?:([+-])=|)(" + pnum + ")([a-z%]*)$", "i" ); + + +var cssExpand = [ "Top", "Right", "Bottom", "Left" ]; + +var isHiddenWithinTree = function( elem, el ) { + + // isHiddenWithinTree might be called from jQuery#filter function; + // in that case, element will be second argument + elem = el || elem; + + // Inline style trumps all + return elem.style.display === "none" || + elem.style.display === "" && + + // Otherwise, check computed style + // Support: Firefox <=43 - 45 + // Disconnected elements can have computed display: none, so first confirm that elem is + // in the document. + jQuery.contains( elem.ownerDocument, elem ) && + + jQuery.css( elem, "display" ) === "none"; + }; + +var swap = function( elem, options, callback, args ) { + var ret, name, + old = {}; + + // Remember the old values, and insert the new ones + for ( name in options ) { + old[ name ] = elem.style[ name ]; + elem.style[ name ] = options[ name ]; + } + + ret = callback.apply( elem, args || [] ); + + // Revert the old values + for ( name in options ) { + elem.style[ name ] = old[ name ]; + } + + return ret; +}; + + + + +function adjustCSS( elem, prop, valueParts, tween ) { + var adjusted, + scale = 1, + maxIterations = 20, + currentValue = tween ? + function() { + return tween.cur(); + } : + function() { + return jQuery.css( elem, prop, "" ); + }, + initial = currentValue(), + unit = valueParts && valueParts[ 3 ] || ( jQuery.cssNumber[ prop ] ? "" : "px" ), + + // Starting value computation is required for potential unit mismatches + initialInUnit = ( jQuery.cssNumber[ prop ] || unit !== "px" && +initial ) && + rcssNum.exec( jQuery.css( elem, prop ) ); + + if ( initialInUnit && initialInUnit[ 3 ] !== unit ) { + + // Trust units reported by jQuery.css + unit = unit || initialInUnit[ 3 ]; + + // Make sure we update the tween properties later on + valueParts = valueParts || []; + + // Iteratively approximate from a nonzero starting point + initialInUnit = +initial || 1; + + do { + + // If previous iteration zeroed out, double until we get *something*. + // Use string for doubling so we don't accidentally see scale as unchanged below + scale = scale || ".5"; + + // Adjust and apply + initialInUnit = initialInUnit / scale; + jQuery.style( elem, prop, initialInUnit + unit ); + + // Update scale, tolerating zero or NaN from tween.cur() + // Break the loop if scale is unchanged or perfect, or if we've just had enough. + } while ( + scale !== ( scale = currentValue() / initial ) && scale !== 1 && --maxIterations + ); + } + + if ( valueParts ) { + initialInUnit = +initialInUnit || +initial || 0; + + // Apply relative offset (+=/-=) if specified + adjusted = valueParts[ 1 ] ? + initialInUnit + ( valueParts[ 1 ] + 1 ) * valueParts[ 2 ] : + +valueParts[ 2 ]; + if ( tween ) { + tween.unit = unit; + tween.start = initialInUnit; + tween.end = adjusted; + } + } + return adjusted; +} + + +var defaultDisplayMap = {}; + +function getDefaultDisplay( elem ) { + var temp, + doc = elem.ownerDocument, + nodeName = elem.nodeName, + display = defaultDisplayMap[ nodeName ]; + + if ( display ) { + return display; + } + + temp = doc.body.appendChild( doc.createElement( nodeName ) ); + display = jQuery.css( temp, "display" ); + + temp.parentNode.removeChild( temp ); + + if ( display === "none" ) { + display = "block"; + } + defaultDisplayMap[ nodeName ] = display; + + return display; +} + +function showHide( elements, show ) { + var display, elem, + values = [], + index = 0, + length = elements.length; + + // Determine new display value for elements that need to change + for ( ; index < length; index++ ) { + elem = elements[ index ]; + if ( !elem.style ) { + continue; + } + + display = elem.style.display; + if ( show ) { + + // Since we force visibility upon cascade-hidden elements, an immediate (and slow) + // check is required in this first loop unless we have a nonempty display value (either + // inline or about-to-be-restored) + if ( display === "none" ) { + values[ index ] = dataPriv.get( elem, "display" ) || null; + if ( !values[ index ] ) { + elem.style.display = ""; + } + } + if ( elem.style.display === "" && isHiddenWithinTree( elem ) ) { + values[ index ] = getDefaultDisplay( elem ); + } + } else { + if ( display !== "none" ) { + values[ index ] = "none"; + + // Remember what we're overwriting + dataPriv.set( elem, "display", display ); + } + } + } + + // Set the display of the elements in a second loop to avoid constant reflow + for ( index = 0; index < length; index++ ) { + if ( values[ index ] != null ) { + elements[ index ].style.display = values[ index ]; + } + } + + return elements; +} + +jQuery.fn.extend( { + show: function() { + return showHide( this, true ); + }, + hide: function() { + return showHide( this ); + }, + toggle: function( state ) { + if ( typeof state === "boolean" ) { + return state ? this.show() : this.hide(); + } + + return this.each( function() { + if ( isHiddenWithinTree( this ) ) { + jQuery( this ).show(); + } else { + jQuery( this ).hide(); + } + } ); + } +} ); +var rcheckableType = ( /^(?:checkbox|radio)$/i ); + +var rtagName = ( /<([a-z][^\/\0>\x20\t\r\n\f]+)/i ); + +var rscriptType = ( /^$|\/(?:java|ecma)script/i ); + + + +// We have to close these tags to support XHTML (#13200) +var wrapMap = { + + // Support: IE <=9 only + option: [ 1, "" ], + + // XHTML parsers do not magically insert elements in the + // same way that tag soup parsers do. So we cannot shorten + // this by omitting or other required elements. + thead: [ 1, "", "
" ], + col: [ 2, "", "
" ], + tr: [ 2, "", "
" ], + td: [ 3, "", "
" ], + + _default: [ 0, "", "" ] +}; + +// Support: IE <=9 only +wrapMap.optgroup = wrapMap.option; + +wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead; +wrapMap.th = wrapMap.td; + + +function getAll( context, tag ) { + + // Support: IE <=9 - 11 only + // Use typeof to avoid zero-argument method invocation on host objects (#15151) + var ret; + + if ( typeof context.getElementsByTagName !== "undefined" ) { + ret = context.getElementsByTagName( tag || "*" ); + + } else if ( typeof context.querySelectorAll !== "undefined" ) { + ret = context.querySelectorAll( tag || "*" ); + + } else { + ret = []; + } + + if ( tag === undefined || tag && nodeName( context, tag ) ) { + return jQuery.merge( [ context ], ret ); + } + + return ret; +} + + +// Mark scripts as having already been evaluated +function setGlobalEval( elems, refElements ) { + var i = 0, + l = elems.length; + + for ( ; i < l; i++ ) { + dataPriv.set( + elems[ i ], + "globalEval", + !refElements || dataPriv.get( refElements[ i ], "globalEval" ) + ); + } +} + + +var rhtml = /<|&#?\w+;/; + +function buildFragment( elems, context, scripts, selection, ignored ) { + var elem, tmp, tag, wrap, contains, j, + fragment = context.createDocumentFragment(), + nodes = [], + i = 0, + l = elems.length; + + for ( ; i < l; i++ ) { + elem = elems[ i ]; + + if ( elem || elem === 0 ) { + + // Add nodes directly + if ( jQuery.type( elem ) === "object" ) { + + // Support: Android <=4.0 only, PhantomJS 1 only + // push.apply(_, arraylike) throws on ancient WebKit + jQuery.merge( nodes, elem.nodeType ? [ elem ] : elem ); + + // Convert non-html into a text node + } else if ( !rhtml.test( elem ) ) { + nodes.push( context.createTextNode( elem ) ); + + // Convert html into DOM nodes + } else { + tmp = tmp || fragment.appendChild( context.createElement( "div" ) ); + + // Deserialize a standard representation + tag = ( rtagName.exec( elem ) || [ "", "" ] )[ 1 ].toLowerCase(); + wrap = wrapMap[ tag ] || wrapMap._default; + tmp.innerHTML = wrap[ 1 ] + jQuery.htmlPrefilter( elem ) + wrap[ 2 ]; + + // Descend through wrappers to the right content + j = wrap[ 0 ]; + while ( j-- ) { + tmp = tmp.lastChild; + } + + // Support: Android <=4.0 only, PhantomJS 1 only + // push.apply(_, arraylike) throws on ancient WebKit + jQuery.merge( nodes, tmp.childNodes ); + + // Remember the top-level container + tmp = fragment.firstChild; + + // Ensure the created nodes are orphaned (#12392) + tmp.textContent = ""; + } + } + } + + // Remove wrapper from fragment + fragment.textContent = ""; + + i = 0; + while ( ( elem = nodes[ i++ ] ) ) { + + // Skip elements already in the context collection (trac-4087) + if ( selection && jQuery.inArray( elem, selection ) > -1 ) { + if ( ignored ) { + ignored.push( elem ); + } + continue; + } + + contains = jQuery.contains( elem.ownerDocument, elem ); + + // Append to fragment + tmp = getAll( fragment.appendChild( elem ), "script" ); + + // Preserve script evaluation history + if ( contains ) { + setGlobalEval( tmp ); + } + + // Capture executables + if ( scripts ) { + j = 0; + while ( ( elem = tmp[ j++ ] ) ) { + if ( rscriptType.test( elem.type || "" ) ) { + scripts.push( elem ); + } + } + } + } + + return fragment; +} + + +( function() { + var fragment = document.createDocumentFragment(), + div = fragment.appendChild( document.createElement( "div" ) ), + input = document.createElement( "input" ); + + // Support: Android 4.0 - 4.3 only + // Check state lost if the name is set (#11217) + // Support: Windows Web Apps (WWA) + // `name` and `type` must use .setAttribute for WWA (#14901) + input.setAttribute( "type", "radio" ); + input.setAttribute( "checked", "checked" ); + input.setAttribute( "name", "t" ); + + div.appendChild( input ); + + // Support: Android <=4.1 only + // Older WebKit doesn't clone checked state correctly in fragments + support.checkClone = div.cloneNode( true ).cloneNode( true ).lastChild.checked; + + // Support: IE <=11 only + // Make sure textarea (and checkbox) defaultValue is properly cloned + div.innerHTML = ""; + support.noCloneChecked = !!div.cloneNode( true ).lastChild.defaultValue; +} )(); +var documentElement = document.documentElement; + + + +var + rkeyEvent = /^key/, + rmouseEvent = /^(?:mouse|pointer|contextmenu|drag|drop)|click/, + rtypenamespace = /^([^.]*)(?:\.(.+)|)/; + +function returnTrue() { + return true; +} + +function returnFalse() { + return false; +} + +// Support: IE <=9 only +// See #13393 for more info +function safeActiveElement() { + try { + return document.activeElement; + } catch ( err ) { } +} + +function on( elem, types, selector, data, fn, one ) { + var origFn, type; + + // Types can be a map of types/handlers + if ( typeof types === "object" ) { + + // ( types-Object, selector, data ) + if ( typeof selector !== "string" ) { + + // ( types-Object, data ) + data = data || selector; + selector = undefined; + } + for ( type in types ) { + on( elem, type, selector, data, types[ type ], one ); + } + return elem; + } + + if ( data == null && fn == null ) { + + // ( types, fn ) + fn = selector; + data = selector = undefined; + } else if ( fn == null ) { + if ( typeof selector === "string" ) { + + // ( types, selector, fn ) + fn = data; + data = undefined; + } else { + + // ( types, data, fn ) + fn = data; + data = selector; + selector = undefined; + } + } + if ( fn === false ) { + fn = returnFalse; + } else if ( !fn ) { + return elem; + } + + if ( one === 1 ) { + origFn = fn; + fn = function( event ) { + + // Can use an empty set, since event contains the info + jQuery().off( event ); + return origFn.apply( this, arguments ); + }; + + // Use same guid so caller can remove using origFn + fn.guid = origFn.guid || ( origFn.guid = jQuery.guid++ ); + } + return elem.each( function() { + jQuery.event.add( this, types, fn, data, selector ); + } ); +} + +/* + * Helper functions for managing events -- not part of the public interface. + * Props to Dean Edwards' addEvent library for many of the ideas. + */ +jQuery.event = { + + global: {}, + + add: function( elem, types, handler, data, selector ) { + + var handleObjIn, eventHandle, tmp, + events, t, handleObj, + special, handlers, type, namespaces, origType, + elemData = dataPriv.get( elem ); + + // Don't attach events to noData or text/comment nodes (but allow plain objects) + if ( !elemData ) { + return; + } + + // Caller can pass in an object of custom data in lieu of the handler + if ( handler.handler ) { + handleObjIn = handler; + handler = handleObjIn.handler; + selector = handleObjIn.selector; + } + + // Ensure that invalid selectors throw exceptions at attach time + // Evaluate against documentElement in case elem is a non-element node (e.g., document) + if ( selector ) { + jQuery.find.matchesSelector( documentElement, selector ); + } + + // Make sure that the handler has a unique ID, used to find/remove it later + if ( !handler.guid ) { + handler.guid = jQuery.guid++; + } + + // Init the element's event structure and main handler, if this is the first + if ( !( events = elemData.events ) ) { + events = elemData.events = {}; + } + if ( !( eventHandle = elemData.handle ) ) { + eventHandle = elemData.handle = function( e ) { + + // Discard the second event of a jQuery.event.trigger() and + // when an event is called after a page has unloaded + return typeof jQuery !== "undefined" && jQuery.event.triggered !== e.type ? + jQuery.event.dispatch.apply( elem, arguments ) : undefined; + }; + } + + // Handle multiple events separated by a space + types = ( types || "" ).match( rnothtmlwhite ) || [ "" ]; + t = types.length; + while ( t-- ) { + tmp = rtypenamespace.exec( types[ t ] ) || []; + type = origType = tmp[ 1 ]; + namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort(); + + // There *must* be a type, no attaching namespace-only handlers + if ( !type ) { + continue; + } + + // If event changes its type, use the special event handlers for the changed type + special = jQuery.event.special[ type ] || {}; + + // If selector defined, determine special event api type, otherwise given type + type = ( selector ? special.delegateType : special.bindType ) || type; + + // Update special based on newly reset type + special = jQuery.event.special[ type ] || {}; + + // handleObj is passed to all event handlers + handleObj = jQuery.extend( { + type: type, + origType: origType, + data: data, + handler: handler, + guid: handler.guid, + selector: selector, + needsContext: selector && jQuery.expr.match.needsContext.test( selector ), + namespace: namespaces.join( "." ) + }, handleObjIn ); + + // Init the event handler queue if we're the first + if ( !( handlers = events[ type ] ) ) { + handlers = events[ type ] = []; + handlers.delegateCount = 0; + + // Only use addEventListener if the special events handler returns false + if ( !special.setup || + special.setup.call( elem, data, namespaces, eventHandle ) === false ) { + + if ( elem.addEventListener ) { + elem.addEventListener( type, eventHandle ); + } + } + } + + if ( special.add ) { + special.add.call( elem, handleObj ); + + if ( !handleObj.handler.guid ) { + handleObj.handler.guid = handler.guid; + } + } + + // Add to the element's handler list, delegates in front + if ( selector ) { + handlers.splice( handlers.delegateCount++, 0, handleObj ); + } else { + handlers.push( handleObj ); + } + + // Keep track of which events have ever been used, for event optimization + jQuery.event.global[ type ] = true; + } + + }, + + // Detach an event or set of events from an element + remove: function( elem, types, handler, selector, mappedTypes ) { + + var j, origCount, tmp, + events, t, handleObj, + special, handlers, type, namespaces, origType, + elemData = dataPriv.hasData( elem ) && dataPriv.get( elem ); + + if ( !elemData || !( events = elemData.events ) ) { + return; + } + + // Once for each type.namespace in types; type may be omitted + types = ( types || "" ).match( rnothtmlwhite ) || [ "" ]; + t = types.length; + while ( t-- ) { + tmp = rtypenamespace.exec( types[ t ] ) || []; + type = origType = tmp[ 1 ]; + namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort(); + + // Unbind all events (on this namespace, if provided) for the element + if ( !type ) { + for ( type in events ) { + jQuery.event.remove( elem, type + types[ t ], handler, selector, true ); + } + continue; + } + + special = jQuery.event.special[ type ] || {}; + type = ( selector ? special.delegateType : special.bindType ) || type; + handlers = events[ type ] || []; + tmp = tmp[ 2 ] && + new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" ); + + // Remove matching events + origCount = j = handlers.length; + while ( j-- ) { + handleObj = handlers[ j ]; + + if ( ( mappedTypes || origType === handleObj.origType ) && + ( !handler || handler.guid === handleObj.guid ) && + ( !tmp || tmp.test( handleObj.namespace ) ) && + ( !selector || selector === handleObj.selector || + selector === "**" && handleObj.selector ) ) { + handlers.splice( j, 1 ); + + if ( handleObj.selector ) { + handlers.delegateCount--; + } + if ( special.remove ) { + special.remove.call( elem, handleObj ); + } + } + } + + // Remove generic event handler if we removed something and no more handlers exist + // (avoids potential for endless recursion during removal of special event handlers) + if ( origCount && !handlers.length ) { + if ( !special.teardown || + special.teardown.call( elem, namespaces, elemData.handle ) === false ) { + + jQuery.removeEvent( elem, type, elemData.handle ); + } + + delete events[ type ]; + } + } + + // Remove data and the expando if it's no longer used + if ( jQuery.isEmptyObject( events ) ) { + dataPriv.remove( elem, "handle events" ); + } + }, + + dispatch: function( nativeEvent ) { + + // Make a writable jQuery.Event from the native event object + var event = jQuery.event.fix( nativeEvent ); + + var i, j, ret, matched, handleObj, handlerQueue, + args = new Array( arguments.length ), + handlers = ( dataPriv.get( this, "events" ) || {} )[ event.type ] || [], + special = jQuery.event.special[ event.type ] || {}; + + // Use the fix-ed jQuery.Event rather than the (read-only) native event + args[ 0 ] = event; + + for ( i = 1; i < arguments.length; i++ ) { + args[ i ] = arguments[ i ]; + } + + event.delegateTarget = this; + + // Call the preDispatch hook for the mapped type, and let it bail if desired + if ( special.preDispatch && special.preDispatch.call( this, event ) === false ) { + return; + } + + // Determine handlers + handlerQueue = jQuery.event.handlers.call( this, event, handlers ); + + // Run delegates first; they may want to stop propagation beneath us + i = 0; + while ( ( matched = handlerQueue[ i++ ] ) && !event.isPropagationStopped() ) { + event.currentTarget = matched.elem; + + j = 0; + while ( ( handleObj = matched.handlers[ j++ ] ) && + !event.isImmediatePropagationStopped() ) { + + // Triggered event must either 1) have no namespace, or 2) have namespace(s) + // a subset or equal to those in the bound event (both can have no namespace). + if ( !event.rnamespace || event.rnamespace.test( handleObj.namespace ) ) { + + event.handleObj = handleObj; + event.data = handleObj.data; + + ret = ( ( jQuery.event.special[ handleObj.origType ] || {} ).handle || + handleObj.handler ).apply( matched.elem, args ); + + if ( ret !== undefined ) { + if ( ( event.result = ret ) === false ) { + event.preventDefault(); + event.stopPropagation(); + } + } + } + } + } + + // Call the postDispatch hook for the mapped type + if ( special.postDispatch ) { + special.postDispatch.call( this, event ); + } + + return event.result; + }, + + handlers: function( event, handlers ) { + var i, handleObj, sel, matchedHandlers, matchedSelectors, + handlerQueue = [], + delegateCount = handlers.delegateCount, + cur = event.target; + + // Find delegate handlers + if ( delegateCount && + + // Support: IE <=9 + // Black-hole SVG instance trees (trac-13180) + cur.nodeType && + + // Support: Firefox <=42 + // Suppress spec-violating clicks indicating a non-primary pointer button (trac-3861) + // https://www.w3.org/TR/DOM-Level-3-Events/#event-type-click + // Support: IE 11 only + // ...but not arrow key "clicks" of radio inputs, which can have `button` -1 (gh-2343) + !( event.type === "click" && event.button >= 1 ) ) { + + for ( ; cur !== this; cur = cur.parentNode || this ) { + + // Don't check non-elements (#13208) + // Don't process clicks on disabled elements (#6911, #8165, #11382, #11764) + if ( cur.nodeType === 1 && !( event.type === "click" && cur.disabled === true ) ) { + matchedHandlers = []; + matchedSelectors = {}; + for ( i = 0; i < delegateCount; i++ ) { + handleObj = handlers[ i ]; + + // Don't conflict with Object.prototype properties (#13203) + sel = handleObj.selector + " "; + + if ( matchedSelectors[ sel ] === undefined ) { + matchedSelectors[ sel ] = handleObj.needsContext ? + jQuery( sel, this ).index( cur ) > -1 : + jQuery.find( sel, this, null, [ cur ] ).length; + } + if ( matchedSelectors[ sel ] ) { + matchedHandlers.push( handleObj ); + } + } + if ( matchedHandlers.length ) { + handlerQueue.push( { elem: cur, handlers: matchedHandlers } ); + } + } + } + } + + // Add the remaining (directly-bound) handlers + cur = this; + if ( delegateCount < handlers.length ) { + handlerQueue.push( { elem: cur, handlers: handlers.slice( delegateCount ) } ); + } + + return handlerQueue; + }, + + addProp: function( name, hook ) { + Object.defineProperty( jQuery.Event.prototype, name, { + enumerable: true, + configurable: true, + + get: jQuery.isFunction( hook ) ? + function() { + if ( this.originalEvent ) { + return hook( this.originalEvent ); + } + } : + function() { + if ( this.originalEvent ) { + return this.originalEvent[ name ]; + } + }, + + set: function( value ) { + Object.defineProperty( this, name, { + enumerable: true, + configurable: true, + writable: true, + value: value + } ); + } + } ); + }, + + fix: function( originalEvent ) { + return originalEvent[ jQuery.expando ] ? + originalEvent : + new jQuery.Event( originalEvent ); + }, + + special: { + load: { + + // Prevent triggered image.load events from bubbling to window.load + noBubble: true + }, + focus: { + + // Fire native event if possible so blur/focus sequence is correct + trigger: function() { + if ( this !== safeActiveElement() && this.focus ) { + this.focus(); + return false; + } + }, + delegateType: "focusin" + }, + blur: { + trigger: function() { + if ( this === safeActiveElement() && this.blur ) { + this.blur(); + return false; + } + }, + delegateType: "focusout" + }, + click: { + + // For checkbox, fire native event so checked state will be right + trigger: function() { + if ( this.type === "checkbox" && this.click && nodeName( this, "input" ) ) { + this.click(); + return false; + } + }, + + // For cross-browser consistency, don't fire native .click() on links + _default: function( event ) { + return nodeName( event.target, "a" ); + } + }, + + beforeunload: { + postDispatch: function( event ) { + + // Support: Firefox 20+ + // Firefox doesn't alert if the returnValue field is not set. + if ( event.result !== undefined && event.originalEvent ) { + event.originalEvent.returnValue = event.result; + } + } + } + } +}; + +jQuery.removeEvent = function( elem, type, handle ) { + + // This "if" is needed for plain objects + if ( elem.removeEventListener ) { + elem.removeEventListener( type, handle ); + } +}; + +jQuery.Event = function( src, props ) { + + // Allow instantiation without the 'new' keyword + if ( !( this instanceof jQuery.Event ) ) { + return new jQuery.Event( src, props ); + } + + // Event object + if ( src && src.type ) { + this.originalEvent = src; + this.type = src.type; + + // Events bubbling up the document may have been marked as prevented + // by a handler lower down the tree; reflect the correct value. + this.isDefaultPrevented = src.defaultPrevented || + src.defaultPrevented === undefined && + + // Support: Android <=2.3 only + src.returnValue === false ? + returnTrue : + returnFalse; + + // Create target properties + // Support: Safari <=6 - 7 only + // Target should not be a text node (#504, #13143) + this.target = ( src.target && src.target.nodeType === 3 ) ? + src.target.parentNode : + src.target; + + this.currentTarget = src.currentTarget; + this.relatedTarget = src.relatedTarget; + + // Event type + } else { + this.type = src; + } + + // Put explicitly provided properties onto the event object + if ( props ) { + jQuery.extend( this, props ); + } + + // Create a timestamp if incoming event doesn't have one + this.timeStamp = src && src.timeStamp || jQuery.now(); + + // Mark it as fixed + this[ jQuery.expando ] = true; +}; + +// jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding +// https://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html +jQuery.Event.prototype = { + constructor: jQuery.Event, + isDefaultPrevented: returnFalse, + isPropagationStopped: returnFalse, + isImmediatePropagationStopped: returnFalse, + isSimulated: false, + + preventDefault: function() { + var e = this.originalEvent; + + this.isDefaultPrevented = returnTrue; + + if ( e && !this.isSimulated ) { + e.preventDefault(); + } + }, + stopPropagation: function() { + var e = this.originalEvent; + + this.isPropagationStopped = returnTrue; + + if ( e && !this.isSimulated ) { + e.stopPropagation(); + } + }, + stopImmediatePropagation: function() { + var e = this.originalEvent; + + this.isImmediatePropagationStopped = returnTrue; + + if ( e && !this.isSimulated ) { + e.stopImmediatePropagation(); + } + + this.stopPropagation(); + } +}; + +// Includes all common event props including KeyEvent and MouseEvent specific props +jQuery.each( { + altKey: true, + bubbles: true, + cancelable: true, + changedTouches: true, + ctrlKey: true, + detail: true, + eventPhase: true, + metaKey: true, + pageX: true, + pageY: true, + shiftKey: true, + view: true, + "char": true, + charCode: true, + key: true, + keyCode: true, + button: true, + buttons: true, + clientX: true, + clientY: true, + offsetX: true, + offsetY: true, + pointerId: true, + pointerType: true, + screenX: true, + screenY: true, + targetTouches: true, + toElement: true, + touches: true, + + which: function( event ) { + var button = event.button; + + // Add which for key events + if ( event.which == null && rkeyEvent.test( event.type ) ) { + return event.charCode != null ? event.charCode : event.keyCode; + } + + // Add which for click: 1 === left; 2 === middle; 3 === right + if ( !event.which && button !== undefined && rmouseEvent.test( event.type ) ) { + if ( button & 1 ) { + return 1; + } + + if ( button & 2 ) { + return 3; + } + + if ( button & 4 ) { + return 2; + } + + return 0; + } + + return event.which; + } +}, jQuery.event.addProp ); + +// Create mouseenter/leave events using mouseover/out and event-time checks +// so that event delegation works in jQuery. +// Do the same for pointerenter/pointerleave and pointerover/pointerout +// +// Support: Safari 7 only +// Safari sends mouseenter too often; see: +// https://bugs.chromium.org/p/chromium/issues/detail?id=470258 +// for the description of the bug (it existed in older Chrome versions as well). +jQuery.each( { + mouseenter: "mouseover", + mouseleave: "mouseout", + pointerenter: "pointerover", + pointerleave: "pointerout" +}, function( orig, fix ) { + jQuery.event.special[ orig ] = { + delegateType: fix, + bindType: fix, + + handle: function( event ) { + var ret, + target = this, + related = event.relatedTarget, + handleObj = event.handleObj; + + // For mouseenter/leave call the handler if related is outside the target. + // NB: No relatedTarget if the mouse left/entered the browser window + if ( !related || ( related !== target && !jQuery.contains( target, related ) ) ) { + event.type = handleObj.origType; + ret = handleObj.handler.apply( this, arguments ); + event.type = fix; + } + return ret; + } + }; +} ); + +jQuery.fn.extend( { + + on: function( types, selector, data, fn ) { + return on( this, types, selector, data, fn ); + }, + one: function( types, selector, data, fn ) { + return on( this, types, selector, data, fn, 1 ); + }, + off: function( types, selector, fn ) { + var handleObj, type; + if ( types && types.preventDefault && types.handleObj ) { + + // ( event ) dispatched jQuery.Event + handleObj = types.handleObj; + jQuery( types.delegateTarget ).off( + handleObj.namespace ? + handleObj.origType + "." + handleObj.namespace : + handleObj.origType, + handleObj.selector, + handleObj.handler + ); + return this; + } + if ( typeof types === "object" ) { + + // ( types-object [, selector] ) + for ( type in types ) { + this.off( type, selector, types[ type ] ); + } + return this; + } + if ( selector === false || typeof selector === "function" ) { + + // ( types [, fn] ) + fn = selector; + selector = undefined; + } + if ( fn === false ) { + fn = returnFalse; + } + return this.each( function() { + jQuery.event.remove( this, types, fn, selector ); + } ); + } +} ); + + +var + + /* eslint-disable max-len */ + + // See https://github.com/eslint/eslint/issues/3229 + rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([a-z][^\/\0>\x20\t\r\n\f]*)[^>]*)\/>/gi, + + /* eslint-enable */ + + // Support: IE <=10 - 11, Edge 12 - 13 + // In IE/Edge using regex groups here causes severe slowdowns. + // See https://connect.microsoft.com/IE/feedback/details/1736512/ + rnoInnerhtml = /\s*$/g; + +// Prefer a tbody over its parent table for containing new rows +function manipulationTarget( elem, content ) { + if ( nodeName( elem, "table" ) && + nodeName( content.nodeType !== 11 ? content : content.firstChild, "tr" ) ) { + + return jQuery( ">tbody", elem )[ 0 ] || elem; + } + + return elem; +} + +// Replace/restore the type attribute of script elements for safe DOM manipulation +function disableScript( elem ) { + elem.type = ( elem.getAttribute( "type" ) !== null ) + "/" + elem.type; + return elem; +} +function restoreScript( elem ) { + var match = rscriptTypeMasked.exec( elem.type ); + + if ( match ) { + elem.type = match[ 1 ]; + } else { + elem.removeAttribute( "type" ); + } + + return elem; +} + +function cloneCopyEvent( src, dest ) { + var i, l, type, pdataOld, pdataCur, udataOld, udataCur, events; + + if ( dest.nodeType !== 1 ) { + return; + } + + // 1. Copy private data: events, handlers, etc. + if ( dataPriv.hasData( src ) ) { + pdataOld = dataPriv.access( src ); + pdataCur = dataPriv.set( dest, pdataOld ); + events = pdataOld.events; + + if ( events ) { + delete pdataCur.handle; + pdataCur.events = {}; + + for ( type in events ) { + for ( i = 0, l = events[ type ].length; i < l; i++ ) { + jQuery.event.add( dest, type, events[ type ][ i ] ); + } + } + } + } + + // 2. Copy user data + if ( dataUser.hasData( src ) ) { + udataOld = dataUser.access( src ); + udataCur = jQuery.extend( {}, udataOld ); + + dataUser.set( dest, udataCur ); + } +} + +// Fix IE bugs, see support tests +function fixInput( src, dest ) { + var nodeName = dest.nodeName.toLowerCase(); + + // Fails to persist the checked state of a cloned checkbox or radio button. + if ( nodeName === "input" && rcheckableType.test( src.type ) ) { + dest.checked = src.checked; + + // Fails to return the selected option to the default selected state when cloning options + } else if ( nodeName === "input" || nodeName === "textarea" ) { + dest.defaultValue = src.defaultValue; + } +} + +function domManip( collection, args, callback, ignored ) { + + // Flatten any nested arrays + args = concat.apply( [], args ); + + var fragment, first, scripts, hasScripts, node, doc, + i = 0, + l = collection.length, + iNoClone = l - 1, + value = args[ 0 ], + isFunction = jQuery.isFunction( value ); + + // We can't cloneNode fragments that contain checked, in WebKit + if ( isFunction || + ( l > 1 && typeof value === "string" && + !support.checkClone && rchecked.test( value ) ) ) { + return collection.each( function( index ) { + var self = collection.eq( index ); + if ( isFunction ) { + args[ 0 ] = value.call( this, index, self.html() ); + } + domManip( self, args, callback, ignored ); + } ); + } + + if ( l ) { + fragment = buildFragment( args, collection[ 0 ].ownerDocument, false, collection, ignored ); + first = fragment.firstChild; + + if ( fragment.childNodes.length === 1 ) { + fragment = first; + } + + // Require either new content or an interest in ignored elements to invoke the callback + if ( first || ignored ) { + scripts = jQuery.map( getAll( fragment, "script" ), disableScript ); + hasScripts = scripts.length; + + // Use the original fragment for the last item + // instead of the first because it can end up + // being emptied incorrectly in certain situations (#8070). + for ( ; i < l; i++ ) { + node = fragment; + + if ( i !== iNoClone ) { + node = jQuery.clone( node, true, true ); + + // Keep references to cloned scripts for later restoration + if ( hasScripts ) { + + // Support: Android <=4.0 only, PhantomJS 1 only + // push.apply(_, arraylike) throws on ancient WebKit + jQuery.merge( scripts, getAll( node, "script" ) ); + } + } + + callback.call( collection[ i ], node, i ); + } + + if ( hasScripts ) { + doc = scripts[ scripts.length - 1 ].ownerDocument; + + // Reenable scripts + jQuery.map( scripts, restoreScript ); + + // Evaluate executable scripts on first document insertion + for ( i = 0; i < hasScripts; i++ ) { + node = scripts[ i ]; + if ( rscriptType.test( node.type || "" ) && + !dataPriv.access( node, "globalEval" ) && + jQuery.contains( doc, node ) ) { + + if ( node.src ) { + + // Optional AJAX dependency, but won't run scripts if not present + if ( jQuery._evalUrl ) { + jQuery._evalUrl( node.src ); + } + } else { + DOMEval( node.textContent.replace( rcleanScript, "" ), doc ); + } + } + } + } + } + } + + return collection; +} + +function remove( elem, selector, keepData ) { + var node, + nodes = selector ? jQuery.filter( selector, elem ) : elem, + i = 0; + + for ( ; ( node = nodes[ i ] ) != null; i++ ) { + if ( !keepData && node.nodeType === 1 ) { + jQuery.cleanData( getAll( node ) ); + } + + if ( node.parentNode ) { + if ( keepData && jQuery.contains( node.ownerDocument, node ) ) { + setGlobalEval( getAll( node, "script" ) ); + } + node.parentNode.removeChild( node ); + } + } + + return elem; +} + +jQuery.extend( { + htmlPrefilter: function( html ) { + return html.replace( rxhtmlTag, "<$1>" ); + }, + + clone: function( elem, dataAndEvents, deepDataAndEvents ) { + var i, l, srcElements, destElements, + clone = elem.cloneNode( true ), + inPage = jQuery.contains( elem.ownerDocument, elem ); + + // Fix IE cloning issues + if ( !support.noCloneChecked && ( elem.nodeType === 1 || elem.nodeType === 11 ) && + !jQuery.isXMLDoc( elem ) ) { + + // We eschew Sizzle here for performance reasons: https://jsperf.com/getall-vs-sizzle/2 + destElements = getAll( clone ); + srcElements = getAll( elem ); + + for ( i = 0, l = srcElements.length; i < l; i++ ) { + fixInput( srcElements[ i ], destElements[ i ] ); + } + } + + // Copy the events from the original to the clone + if ( dataAndEvents ) { + if ( deepDataAndEvents ) { + srcElements = srcElements || getAll( elem ); + destElements = destElements || getAll( clone ); + + for ( i = 0, l = srcElements.length; i < l; i++ ) { + cloneCopyEvent( srcElements[ i ], destElements[ i ] ); + } + } else { + cloneCopyEvent( elem, clone ); + } + } + + // Preserve script evaluation history + destElements = getAll( clone, "script" ); + if ( destElements.length > 0 ) { + setGlobalEval( destElements, !inPage && getAll( elem, "script" ) ); + } + + // Return the cloned set + return clone; + }, + + cleanData: function( elems ) { + var data, elem, type, + special = jQuery.event.special, + i = 0; + + for ( ; ( elem = elems[ i ] ) !== undefined; i++ ) { + if ( acceptData( elem ) ) { + if ( ( data = elem[ dataPriv.expando ] ) ) { + if ( data.events ) { + for ( type in data.events ) { + if ( special[ type ] ) { + jQuery.event.remove( elem, type ); + + // This is a shortcut to avoid jQuery.event.remove's overhead + } else { + jQuery.removeEvent( elem, type, data.handle ); + } + } + } + + // Support: Chrome <=35 - 45+ + // Assign undefined instead of using delete, see Data#remove + elem[ dataPriv.expando ] = undefined; + } + if ( elem[ dataUser.expando ] ) { + + // Support: Chrome <=35 - 45+ + // Assign undefined instead of using delete, see Data#remove + elem[ dataUser.expando ] = undefined; + } + } + } + } +} ); + +jQuery.fn.extend( { + detach: function( selector ) { + return remove( this, selector, true ); + }, + + remove: function( selector ) { + return remove( this, selector ); + }, + + text: function( value ) { + return access( this, function( value ) { + return value === undefined ? + jQuery.text( this ) : + this.empty().each( function() { + if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) { + this.textContent = value; + } + } ); + }, null, value, arguments.length ); + }, + + append: function() { + return domManip( this, arguments, function( elem ) { + if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) { + var target = manipulationTarget( this, elem ); + target.appendChild( elem ); + } + } ); + }, + + prepend: function() { + return domManip( this, arguments, function( elem ) { + if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) { + var target = manipulationTarget( this, elem ); + target.insertBefore( elem, target.firstChild ); + } + } ); + }, + + before: function() { + return domManip( this, arguments, function( elem ) { + if ( this.parentNode ) { + this.parentNode.insertBefore( elem, this ); + } + } ); + }, + + after: function() { + return domManip( this, arguments, function( elem ) { + if ( this.parentNode ) { + this.parentNode.insertBefore( elem, this.nextSibling ); + } + } ); + }, + + empty: function() { + var elem, + i = 0; + + for ( ; ( elem = this[ i ] ) != null; i++ ) { + if ( elem.nodeType === 1 ) { + + // Prevent memory leaks + jQuery.cleanData( getAll( elem, false ) ); + + // Remove any remaining nodes + elem.textContent = ""; + } + } + + return this; + }, + + clone: function( dataAndEvents, deepDataAndEvents ) { + dataAndEvents = dataAndEvents == null ? false : dataAndEvents; + deepDataAndEvents = deepDataAndEvents == null ? dataAndEvents : deepDataAndEvents; + + return this.map( function() { + return jQuery.clone( this, dataAndEvents, deepDataAndEvents ); + } ); + }, + + html: function( value ) { + return access( this, function( value ) { + var elem = this[ 0 ] || {}, + i = 0, + l = this.length; + + if ( value === undefined && elem.nodeType === 1 ) { + return elem.innerHTML; + } + + // See if we can take a shortcut and just use innerHTML + if ( typeof value === "string" && !rnoInnerhtml.test( value ) && + !wrapMap[ ( rtagName.exec( value ) || [ "", "" ] )[ 1 ].toLowerCase() ] ) { + + value = jQuery.htmlPrefilter( value ); + + try { + for ( ; i < l; i++ ) { + elem = this[ i ] || {}; + + // Remove element nodes and prevent memory leaks + if ( elem.nodeType === 1 ) { + jQuery.cleanData( getAll( elem, false ) ); + elem.innerHTML = value; + } + } + + elem = 0; + + // If using innerHTML throws an exception, use the fallback method + } catch ( e ) {} + } + + if ( elem ) { + this.empty().append( value ); + } + }, null, value, arguments.length ); + }, + + replaceWith: function() { + var ignored = []; + + // Make the changes, replacing each non-ignored context element with the new content + return domManip( this, arguments, function( elem ) { + var parent = this.parentNode; + + if ( jQuery.inArray( this, ignored ) < 0 ) { + jQuery.cleanData( getAll( this ) ); + if ( parent ) { + parent.replaceChild( elem, this ); + } + } + + // Force callback invocation + }, ignored ); + } +} ); + +jQuery.each( { + appendTo: "append", + prependTo: "prepend", + insertBefore: "before", + insertAfter: "after", + replaceAll: "replaceWith" +}, function( name, original ) { + jQuery.fn[ name ] = function( selector ) { + var elems, + ret = [], + insert = jQuery( selector ), + last = insert.length - 1, + i = 0; + + for ( ; i <= last; i++ ) { + elems = i === last ? this : this.clone( true ); + jQuery( insert[ i ] )[ original ]( elems ); + + // Support: Android <=4.0 only, PhantomJS 1 only + // .get() because push.apply(_, arraylike) throws on ancient WebKit + push.apply( ret, elems.get() ); + } + + return this.pushStack( ret ); + }; +} ); +var rmargin = ( /^margin/ ); + +var rnumnonpx = new RegExp( "^(" + pnum + ")(?!px)[a-z%]+$", "i" ); + +var getStyles = function( elem ) { + + // Support: IE <=11 only, Firefox <=30 (#15098, #14150) + // IE throws on elements created in popups + // FF meanwhile throws on frame elements through "defaultView.getComputedStyle" + var view = elem.ownerDocument.defaultView; + + if ( !view || !view.opener ) { + view = window; + } + + return view.getComputedStyle( elem ); + }; + + + +( function() { + + // Executing both pixelPosition & boxSizingReliable tests require only one layout + // so they're executed at the same time to save the second computation. + function computeStyleTests() { + + // This is a singleton, we need to execute it only once + if ( !div ) { + return; + } + + div.style.cssText = + "box-sizing:border-box;" + + "position:relative;display:block;" + + "margin:auto;border:1px;padding:1px;" + + "top:1%;width:50%"; + div.innerHTML = ""; + documentElement.appendChild( container ); + + var divStyle = window.getComputedStyle( div ); + pixelPositionVal = divStyle.top !== "1%"; + + // Support: Android 4.0 - 4.3 only, Firefox <=3 - 44 + reliableMarginLeftVal = divStyle.marginLeft === "2px"; + boxSizingReliableVal = divStyle.width === "4px"; + + // Support: Android 4.0 - 4.3 only + // Some styles come back with percentage values, even though they shouldn't + div.style.marginRight = "50%"; + pixelMarginRightVal = divStyle.marginRight === "4px"; + + documentElement.removeChild( container ); + + // Nullify the div so it wouldn't be stored in the memory and + // it will also be a sign that checks already performed + div = null; + } + + var pixelPositionVal, boxSizingReliableVal, pixelMarginRightVal, reliableMarginLeftVal, + container = document.createElement( "div" ), + div = document.createElement( "div" ); + + // Finish early in limited (non-browser) environments + if ( !div.style ) { + return; + } + + // Support: IE <=9 - 11 only + // Style of cloned element affects source element cloned (#8908) + div.style.backgroundClip = "content-box"; + div.cloneNode( true ).style.backgroundClip = ""; + support.clearCloneStyle = div.style.backgroundClip === "content-box"; + + container.style.cssText = "border:0;width:8px;height:0;top:0;left:-9999px;" + + "padding:0;margin-top:1px;position:absolute"; + container.appendChild( div ); + + jQuery.extend( support, { + pixelPosition: function() { + computeStyleTests(); + return pixelPositionVal; + }, + boxSizingReliable: function() { + computeStyleTests(); + return boxSizingReliableVal; + }, + pixelMarginRight: function() { + computeStyleTests(); + return pixelMarginRightVal; + }, + reliableMarginLeft: function() { + computeStyleTests(); + return reliableMarginLeftVal; + } + } ); +} )(); + + +function curCSS( elem, name, computed ) { + var width, minWidth, maxWidth, ret, + + // Support: Firefox 51+ + // Retrieving style before computed somehow + // fixes an issue with getting wrong values + // on detached elements + style = elem.style; + + computed = computed || getStyles( elem ); + + // getPropertyValue is needed for: + // .css('filter') (IE 9 only, #12537) + // .css('--customProperty) (#3144) + if ( computed ) { + ret = computed.getPropertyValue( name ) || computed[ name ]; + + if ( ret === "" && !jQuery.contains( elem.ownerDocument, elem ) ) { + ret = jQuery.style( elem, name ); + } + + // A tribute to the "awesome hack by Dean Edwards" + // Android Browser returns percentage for some values, + // but width seems to be reliably pixels. + // This is against the CSSOM draft spec: + // https://drafts.csswg.org/cssom/#resolved-values + if ( !support.pixelMarginRight() && rnumnonpx.test( ret ) && rmargin.test( name ) ) { + + // Remember the original values + width = style.width; + minWidth = style.minWidth; + maxWidth = style.maxWidth; + + // Put in the new values to get a computed value out + style.minWidth = style.maxWidth = style.width = ret; + ret = computed.width; + + // Revert the changed values + style.width = width; + style.minWidth = minWidth; + style.maxWidth = maxWidth; + } + } + + return ret !== undefined ? + + // Support: IE <=9 - 11 only + // IE returns zIndex value as an integer. + ret + "" : + ret; +} + + +function addGetHookIf( conditionFn, hookFn ) { + + // Define the hook, we'll check on the first run if it's really needed. + return { + get: function() { + if ( conditionFn() ) { + + // Hook not needed (or it's not possible to use it due + // to missing dependency), remove it. + delete this.get; + return; + } + + // Hook needed; redefine it so that the support test is not executed again. + return ( this.get = hookFn ).apply( this, arguments ); + } + }; +} + + +var + + // Swappable if display is none or starts with table + // except "table", "table-cell", or "table-caption" + // See here for display values: https://developer.mozilla.org/en-US/docs/CSS/display + rdisplayswap = /^(none|table(?!-c[ea]).+)/, + rcustomProp = /^--/, + cssShow = { position: "absolute", visibility: "hidden", display: "block" }, + cssNormalTransform = { + letterSpacing: "0", + fontWeight: "400" + }, + + cssPrefixes = [ "Webkit", "Moz", "ms" ], + emptyStyle = document.createElement( "div" ).style; + +// Return a css property mapped to a potentially vendor prefixed property +function vendorPropName( name ) { + + // Shortcut for names that are not vendor prefixed + if ( name in emptyStyle ) { + return name; + } + + // Check for vendor prefixed names + var capName = name[ 0 ].toUpperCase() + name.slice( 1 ), + i = cssPrefixes.length; + + while ( i-- ) { + name = cssPrefixes[ i ] + capName; + if ( name in emptyStyle ) { + return name; + } + } +} + +// Return a property mapped along what jQuery.cssProps suggests or to +// a vendor prefixed property. +function finalPropName( name ) { + var ret = jQuery.cssProps[ name ]; + if ( !ret ) { + ret = jQuery.cssProps[ name ] = vendorPropName( name ) || name; + } + return ret; +} + +function setPositiveNumber( elem, value, subtract ) { + + // Any relative (+/-) values have already been + // normalized at this point + var matches = rcssNum.exec( value ); + return matches ? + + // Guard against undefined "subtract", e.g., when used as in cssHooks + Math.max( 0, matches[ 2 ] - ( subtract || 0 ) ) + ( matches[ 3 ] || "px" ) : + value; +} + +function augmentWidthOrHeight( elem, name, extra, isBorderBox, styles ) { + var i, + val = 0; + + // If we already have the right measurement, avoid augmentation + if ( extra === ( isBorderBox ? "border" : "content" ) ) { + i = 4; + + // Otherwise initialize for horizontal or vertical properties + } else { + i = name === "width" ? 1 : 0; + } + + for ( ; i < 4; i += 2 ) { + + // Both box models exclude margin, so add it if we want it + if ( extra === "margin" ) { + val += jQuery.css( elem, extra + cssExpand[ i ], true, styles ); + } + + if ( isBorderBox ) { + + // border-box includes padding, so remove it if we want content + if ( extra === "content" ) { + val -= jQuery.css( elem, "padding" + cssExpand[ i ], true, styles ); + } + + // At this point, extra isn't border nor margin, so remove border + if ( extra !== "margin" ) { + val -= jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles ); + } + } else { + + // At this point, extra isn't content, so add padding + val += jQuery.css( elem, "padding" + cssExpand[ i ], true, styles ); + + // At this point, extra isn't content nor padding, so add border + if ( extra !== "padding" ) { + val += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles ); + } + } + } + + return val; +} + +function getWidthOrHeight( elem, name, extra ) { + + // Start with computed style + var valueIsBorderBox, + styles = getStyles( elem ), + val = curCSS( elem, name, styles ), + isBorderBox = jQuery.css( elem, "boxSizing", false, styles ) === "border-box"; + + // Computed unit is not pixels. Stop here and return. + if ( rnumnonpx.test( val ) ) { + return val; + } + + // Check for style in case a browser which returns unreliable values + // for getComputedStyle silently falls back to the reliable elem.style + valueIsBorderBox = isBorderBox && + ( support.boxSizingReliable() || val === elem.style[ name ] ); + + // Fall back to offsetWidth/Height when value is "auto" + // This happens for inline elements with no explicit setting (gh-3571) + if ( val === "auto" ) { + val = elem[ "offset" + name[ 0 ].toUpperCase() + name.slice( 1 ) ]; + } + + // Normalize "", auto, and prepare for extra + val = parseFloat( val ) || 0; + + // Use the active box-sizing model to add/subtract irrelevant styles + return ( val + + augmentWidthOrHeight( + elem, + name, + extra || ( isBorderBox ? "border" : "content" ), + valueIsBorderBox, + styles + ) + ) + "px"; +} + +jQuery.extend( { + + // Add in style property hooks for overriding the default + // behavior of getting and setting a style property + cssHooks: { + opacity: { + get: function( elem, computed ) { + if ( computed ) { + + // We should always get a number back from opacity + var ret = curCSS( elem, "opacity" ); + return ret === "" ? "1" : ret; + } + } + } + }, + + // Don't automatically add "px" to these possibly-unitless properties + cssNumber: { + "animationIterationCount": true, + "columnCount": true, + "fillOpacity": true, + "flexGrow": true, + "flexShrink": true, + "fontWeight": true, + "lineHeight": true, + "opacity": true, + "order": true, + "orphans": true, + "widows": true, + "zIndex": true, + "zoom": true + }, + + // Add in properties whose names you wish to fix before + // setting or getting the value + cssProps: { + "float": "cssFloat" + }, + + // Get and set the style property on a DOM Node + style: function( elem, name, value, extra ) { + + // Don't set styles on text and comment nodes + if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style ) { + return; + } + + // Make sure that we're working with the right name + var ret, type, hooks, + origName = jQuery.camelCase( name ), + isCustomProp = rcustomProp.test( name ), + style = elem.style; + + // Make sure that we're working with the right name. We don't + // want to query the value if it is a CSS custom property + // since they are user-defined. + if ( !isCustomProp ) { + name = finalPropName( origName ); + } + + // Gets hook for the prefixed version, then unprefixed version + hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ]; + + // Check if we're setting a value + if ( value !== undefined ) { + type = typeof value; + + // Convert "+=" or "-=" to relative numbers (#7345) + if ( type === "string" && ( ret = rcssNum.exec( value ) ) && ret[ 1 ] ) { + value = adjustCSS( elem, name, ret ); + + // Fixes bug #9237 + type = "number"; + } + + // Make sure that null and NaN values aren't set (#7116) + if ( value == null || value !== value ) { + return; + } + + // If a number was passed in, add the unit (except for certain CSS properties) + if ( type === "number" ) { + value += ret && ret[ 3 ] || ( jQuery.cssNumber[ origName ] ? "" : "px" ); + } + + // background-* props affect original clone's values + if ( !support.clearCloneStyle && value === "" && name.indexOf( "background" ) === 0 ) { + style[ name ] = "inherit"; + } + + // If a hook was provided, use that value, otherwise just set the specified value + if ( !hooks || !( "set" in hooks ) || + ( value = hooks.set( elem, value, extra ) ) !== undefined ) { + + if ( isCustomProp ) { + style.setProperty( name, value ); + } else { + style[ name ] = value; + } + } + + } else { + + // If a hook was provided get the non-computed value from there + if ( hooks && "get" in hooks && + ( ret = hooks.get( elem, false, extra ) ) !== undefined ) { + + return ret; + } + + // Otherwise just get the value from the style object + return style[ name ]; + } + }, + + css: function( elem, name, extra, styles ) { + var val, num, hooks, + origName = jQuery.camelCase( name ), + isCustomProp = rcustomProp.test( name ); + + // Make sure that we're working with the right name. We don't + // want to modify the value if it is a CSS custom property + // since they are user-defined. + if ( !isCustomProp ) { + name = finalPropName( origName ); + } + + // Try prefixed name followed by the unprefixed name + hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ]; + + // If a hook was provided get the computed value from there + if ( hooks && "get" in hooks ) { + val = hooks.get( elem, true, extra ); + } + + // Otherwise, if a way to get the computed value exists, use that + if ( val === undefined ) { + val = curCSS( elem, name, styles ); + } + + // Convert "normal" to computed value + if ( val === "normal" && name in cssNormalTransform ) { + val = cssNormalTransform[ name ]; + } + + // Make numeric if forced or a qualifier was provided and val looks numeric + if ( extra === "" || extra ) { + num = parseFloat( val ); + return extra === true || isFinite( num ) ? num || 0 : val; + } + + return val; + } +} ); + +jQuery.each( [ "height", "width" ], function( i, name ) { + jQuery.cssHooks[ name ] = { + get: function( elem, computed, extra ) { + if ( computed ) { + + // Certain elements can have dimension info if we invisibly show them + // but it must have a current display style that would benefit + return rdisplayswap.test( jQuery.css( elem, "display" ) ) && + + // Support: Safari 8+ + // Table columns in Safari have non-zero offsetWidth & zero + // getBoundingClientRect().width unless display is changed. + // Support: IE <=11 only + // Running getBoundingClientRect on a disconnected node + // in IE throws an error. + ( !elem.getClientRects().length || !elem.getBoundingClientRect().width ) ? + swap( elem, cssShow, function() { + return getWidthOrHeight( elem, name, extra ); + } ) : + getWidthOrHeight( elem, name, extra ); + } + }, + + set: function( elem, value, extra ) { + var matches, + styles = extra && getStyles( elem ), + subtract = extra && augmentWidthOrHeight( + elem, + name, + extra, + jQuery.css( elem, "boxSizing", false, styles ) === "border-box", + styles + ); + + // Convert to pixels if value adjustment is needed + if ( subtract && ( matches = rcssNum.exec( value ) ) && + ( matches[ 3 ] || "px" ) !== "px" ) { + + elem.style[ name ] = value; + value = jQuery.css( elem, name ); + } + + return setPositiveNumber( elem, value, subtract ); + } + }; +} ); + +jQuery.cssHooks.marginLeft = addGetHookIf( support.reliableMarginLeft, + function( elem, computed ) { + if ( computed ) { + return ( parseFloat( curCSS( elem, "marginLeft" ) ) || + elem.getBoundingClientRect().left - + swap( elem, { marginLeft: 0 }, function() { + return elem.getBoundingClientRect().left; + } ) + ) + "px"; + } + } +); + +// These hooks are used by animate to expand properties +jQuery.each( { + margin: "", + padding: "", + border: "Width" +}, function( prefix, suffix ) { + jQuery.cssHooks[ prefix + suffix ] = { + expand: function( value ) { + var i = 0, + expanded = {}, + + // Assumes a single number if not a string + parts = typeof value === "string" ? value.split( " " ) : [ value ]; + + for ( ; i < 4; i++ ) { + expanded[ prefix + cssExpand[ i ] + suffix ] = + parts[ i ] || parts[ i - 2 ] || parts[ 0 ]; + } + + return expanded; + } + }; + + if ( !rmargin.test( prefix ) ) { + jQuery.cssHooks[ prefix + suffix ].set = setPositiveNumber; + } +} ); + +jQuery.fn.extend( { + css: function( name, value ) { + return access( this, function( elem, name, value ) { + var styles, len, + map = {}, + i = 0; + + if ( Array.isArray( name ) ) { + styles = getStyles( elem ); + len = name.length; + + for ( ; i < len; i++ ) { + map[ name[ i ] ] = jQuery.css( elem, name[ i ], false, styles ); + } + + return map; + } + + return value !== undefined ? + jQuery.style( elem, name, value ) : + jQuery.css( elem, name ); + }, name, value, arguments.length > 1 ); + } +} ); + + +function Tween( elem, options, prop, end, easing ) { + return new Tween.prototype.init( elem, options, prop, end, easing ); +} +jQuery.Tween = Tween; + +Tween.prototype = { + constructor: Tween, + init: function( elem, options, prop, end, easing, unit ) { + this.elem = elem; + this.prop = prop; + this.easing = easing || jQuery.easing._default; + this.options = options; + this.start = this.now = this.cur(); + this.end = end; + this.unit = unit || ( jQuery.cssNumber[ prop ] ? "" : "px" ); + }, + cur: function() { + var hooks = Tween.propHooks[ this.prop ]; + + return hooks && hooks.get ? + hooks.get( this ) : + Tween.propHooks._default.get( this ); + }, + run: function( percent ) { + var eased, + hooks = Tween.propHooks[ this.prop ]; + + if ( this.options.duration ) { + this.pos = eased = jQuery.easing[ this.easing ]( + percent, this.options.duration * percent, 0, 1, this.options.duration + ); + } else { + this.pos = eased = percent; + } + this.now = ( this.end - this.start ) * eased + this.start; + + if ( this.options.step ) { + this.options.step.call( this.elem, this.now, this ); + } + + if ( hooks && hooks.set ) { + hooks.set( this ); + } else { + Tween.propHooks._default.set( this ); + } + return this; + } +}; + +Tween.prototype.init.prototype = Tween.prototype; + +Tween.propHooks = { + _default: { + get: function( tween ) { + var result; + + // Use a property on the element directly when it is not a DOM element, + // or when there is no matching style property that exists. + if ( tween.elem.nodeType !== 1 || + tween.elem[ tween.prop ] != null && tween.elem.style[ tween.prop ] == null ) { + return tween.elem[ tween.prop ]; + } + + // Passing an empty string as a 3rd parameter to .css will automatically + // attempt a parseFloat and fallback to a string if the parse fails. + // Simple values such as "10px" are parsed to Float; + // complex values such as "rotate(1rad)" are returned as-is. + result = jQuery.css( tween.elem, tween.prop, "" ); + + // Empty strings, null, undefined and "auto" are converted to 0. + return !result || result === "auto" ? 0 : result; + }, + set: function( tween ) { + + // Use step hook for back compat. + // Use cssHook if its there. + // Use .style if available and use plain properties where available. + if ( jQuery.fx.step[ tween.prop ] ) { + jQuery.fx.step[ tween.prop ]( tween ); + } else if ( tween.elem.nodeType === 1 && + ( tween.elem.style[ jQuery.cssProps[ tween.prop ] ] != null || + jQuery.cssHooks[ tween.prop ] ) ) { + jQuery.style( tween.elem, tween.prop, tween.now + tween.unit ); + } else { + tween.elem[ tween.prop ] = tween.now; + } + } + } +}; + +// Support: IE <=9 only +// Panic based approach to setting things on disconnected nodes +Tween.propHooks.scrollTop = Tween.propHooks.scrollLeft = { + set: function( tween ) { + if ( tween.elem.nodeType && tween.elem.parentNode ) { + tween.elem[ tween.prop ] = tween.now; + } + } +}; + +jQuery.easing = { + linear: function( p ) { + return p; + }, + swing: function( p ) { + return 0.5 - Math.cos( p * Math.PI ) / 2; + }, + _default: "swing" +}; + +jQuery.fx = Tween.prototype.init; + +// Back compat <1.8 extension point +jQuery.fx.step = {}; + + + + +var + fxNow, inProgress, + rfxtypes = /^(?:toggle|show|hide)$/, + rrun = /queueHooks$/; + +function schedule() { + if ( inProgress ) { + if ( document.hidden === false && window.requestAnimationFrame ) { + window.requestAnimationFrame( schedule ); + } else { + window.setTimeout( schedule, jQuery.fx.interval ); + } + + jQuery.fx.tick(); + } +} + +// Animations created synchronously will run synchronously +function createFxNow() { + window.setTimeout( function() { + fxNow = undefined; + } ); + return ( fxNow = jQuery.now() ); +} + +// Generate parameters to create a standard animation +function genFx( type, includeWidth ) { + var which, + i = 0, + attrs = { height: type }; + + // If we include width, step value is 1 to do all cssExpand values, + // otherwise step value is 2 to skip over Left and Right + includeWidth = includeWidth ? 1 : 0; + for ( ; i < 4; i += 2 - includeWidth ) { + which = cssExpand[ i ]; + attrs[ "margin" + which ] = attrs[ "padding" + which ] = type; + } + + if ( includeWidth ) { + attrs.opacity = attrs.width = type; + } + + return attrs; +} + +function createTween( value, prop, animation ) { + var tween, + collection = ( Animation.tweeners[ prop ] || [] ).concat( Animation.tweeners[ "*" ] ), + index = 0, + length = collection.length; + for ( ; index < length; index++ ) { + if ( ( tween = collection[ index ].call( animation, prop, value ) ) ) { + + // We're done with this property + return tween; + } + } +} + +function defaultPrefilter( elem, props, opts ) { + var prop, value, toggle, hooks, oldfire, propTween, restoreDisplay, display, + isBox = "width" in props || "height" in props, + anim = this, + orig = {}, + style = elem.style, + hidden = elem.nodeType && isHiddenWithinTree( elem ), + dataShow = dataPriv.get( elem, "fxshow" ); + + // Queue-skipping animations hijack the fx hooks + if ( !opts.queue ) { + hooks = jQuery._queueHooks( elem, "fx" ); + if ( hooks.unqueued == null ) { + hooks.unqueued = 0; + oldfire = hooks.empty.fire; + hooks.empty.fire = function() { + if ( !hooks.unqueued ) { + oldfire(); + } + }; + } + hooks.unqueued++; + + anim.always( function() { + + // Ensure the complete handler is called before this completes + anim.always( function() { + hooks.unqueued--; + if ( !jQuery.queue( elem, "fx" ).length ) { + hooks.empty.fire(); + } + } ); + } ); + } + + // Detect show/hide animations + for ( prop in props ) { + value = props[ prop ]; + if ( rfxtypes.test( value ) ) { + delete props[ prop ]; + toggle = toggle || value === "toggle"; + if ( value === ( hidden ? "hide" : "show" ) ) { + + // Pretend to be hidden if this is a "show" and + // there is still data from a stopped show/hide + if ( value === "show" && dataShow && dataShow[ prop ] !== undefined ) { + hidden = true; + + // Ignore all other no-op show/hide data + } else { + continue; + } + } + orig[ prop ] = dataShow && dataShow[ prop ] || jQuery.style( elem, prop ); + } + } + + // Bail out if this is a no-op like .hide().hide() + propTween = !jQuery.isEmptyObject( props ); + if ( !propTween && jQuery.isEmptyObject( orig ) ) { + return; + } + + // Restrict "overflow" and "display" styles during box animations + if ( isBox && elem.nodeType === 1 ) { + + // Support: IE <=9 - 11, Edge 12 - 13 + // Record all 3 overflow attributes because IE does not infer the shorthand + // from identically-valued overflowX and overflowY + opts.overflow = [ style.overflow, style.overflowX, style.overflowY ]; + + // Identify a display type, preferring old show/hide data over the CSS cascade + restoreDisplay = dataShow && dataShow.display; + if ( restoreDisplay == null ) { + restoreDisplay = dataPriv.get( elem, "display" ); + } + display = jQuery.css( elem, "display" ); + if ( display === "none" ) { + if ( restoreDisplay ) { + display = restoreDisplay; + } else { + + // Get nonempty value(s) by temporarily forcing visibility + showHide( [ elem ], true ); + restoreDisplay = elem.style.display || restoreDisplay; + display = jQuery.css( elem, "display" ); + showHide( [ elem ] ); + } + } + + // Animate inline elements as inline-block + if ( display === "inline" || display === "inline-block" && restoreDisplay != null ) { + if ( jQuery.css( elem, "float" ) === "none" ) { + + // Restore the original display value at the end of pure show/hide animations + if ( !propTween ) { + anim.done( function() { + style.display = restoreDisplay; + } ); + if ( restoreDisplay == null ) { + display = style.display; + restoreDisplay = display === "none" ? "" : display; + } + } + style.display = "inline-block"; + } + } + } + + if ( opts.overflow ) { + style.overflow = "hidden"; + anim.always( function() { + style.overflow = opts.overflow[ 0 ]; + style.overflowX = opts.overflow[ 1 ]; + style.overflowY = opts.overflow[ 2 ]; + } ); + } + + // Implement show/hide animations + propTween = false; + for ( prop in orig ) { + + // General show/hide setup for this element animation + if ( !propTween ) { + if ( dataShow ) { + if ( "hidden" in dataShow ) { + hidden = dataShow.hidden; + } + } else { + dataShow = dataPriv.access( elem, "fxshow", { display: restoreDisplay } ); + } + + // Store hidden/visible for toggle so `.stop().toggle()` "reverses" + if ( toggle ) { + dataShow.hidden = !hidden; + } + + // Show elements before animating them + if ( hidden ) { + showHide( [ elem ], true ); + } + + /* eslint-disable no-loop-func */ + + anim.done( function() { + + /* eslint-enable no-loop-func */ + + // The final step of a "hide" animation is actually hiding the element + if ( !hidden ) { + showHide( [ elem ] ); + } + dataPriv.remove( elem, "fxshow" ); + for ( prop in orig ) { + jQuery.style( elem, prop, orig[ prop ] ); + } + } ); + } + + // Per-property setup + propTween = createTween( hidden ? dataShow[ prop ] : 0, prop, anim ); + if ( !( prop in dataShow ) ) { + dataShow[ prop ] = propTween.start; + if ( hidden ) { + propTween.end = propTween.start; + propTween.start = 0; + } + } + } +} + +function propFilter( props, specialEasing ) { + var index, name, easing, value, hooks; + + // camelCase, specialEasing and expand cssHook pass + for ( index in props ) { + name = jQuery.camelCase( index ); + easing = specialEasing[ name ]; + value = props[ index ]; + if ( Array.isArray( value ) ) { + easing = value[ 1 ]; + value = props[ index ] = value[ 0 ]; + } + + if ( index !== name ) { + props[ name ] = value; + delete props[ index ]; + } + + hooks = jQuery.cssHooks[ name ]; + if ( hooks && "expand" in hooks ) { + value = hooks.expand( value ); + delete props[ name ]; + + // Not quite $.extend, this won't overwrite existing keys. + // Reusing 'index' because we have the correct "name" + for ( index in value ) { + if ( !( index in props ) ) { + props[ index ] = value[ index ]; + specialEasing[ index ] = easing; + } + } + } else { + specialEasing[ name ] = easing; + } + } +} + +function Animation( elem, properties, options ) { + var result, + stopped, + index = 0, + length = Animation.prefilters.length, + deferred = jQuery.Deferred().always( function() { + + // Don't match elem in the :animated selector + delete tick.elem; + } ), + tick = function() { + if ( stopped ) { + return false; + } + var currentTime = fxNow || createFxNow(), + remaining = Math.max( 0, animation.startTime + animation.duration - currentTime ), + + // Support: Android 2.3 only + // Archaic crash bug won't allow us to use `1 - ( 0.5 || 0 )` (#12497) + temp = remaining / animation.duration || 0, + percent = 1 - temp, + index = 0, + length = animation.tweens.length; + + for ( ; index < length; index++ ) { + animation.tweens[ index ].run( percent ); + } + + deferred.notifyWith( elem, [ animation, percent, remaining ] ); + + // If there's more to do, yield + if ( percent < 1 && length ) { + return remaining; + } + + // If this was an empty animation, synthesize a final progress notification + if ( !length ) { + deferred.notifyWith( elem, [ animation, 1, 0 ] ); + } + + // Resolve the animation and report its conclusion + deferred.resolveWith( elem, [ animation ] ); + return false; + }, + animation = deferred.promise( { + elem: elem, + props: jQuery.extend( {}, properties ), + opts: jQuery.extend( true, { + specialEasing: {}, + easing: jQuery.easing._default + }, options ), + originalProperties: properties, + originalOptions: options, + startTime: fxNow || createFxNow(), + duration: options.duration, + tweens: [], + createTween: function( prop, end ) { + var tween = jQuery.Tween( elem, animation.opts, prop, end, + animation.opts.specialEasing[ prop ] || animation.opts.easing ); + animation.tweens.push( tween ); + return tween; + }, + stop: function( gotoEnd ) { + var index = 0, + + // If we are going to the end, we want to run all the tweens + // otherwise we skip this part + length = gotoEnd ? animation.tweens.length : 0; + if ( stopped ) { + return this; + } + stopped = true; + for ( ; index < length; index++ ) { + animation.tweens[ index ].run( 1 ); + } + + // Resolve when we played the last frame; otherwise, reject + if ( gotoEnd ) { + deferred.notifyWith( elem, [ animation, 1, 0 ] ); + deferred.resolveWith( elem, [ animation, gotoEnd ] ); + } else { + deferred.rejectWith( elem, [ animation, gotoEnd ] ); + } + return this; + } + } ), + props = animation.props; + + propFilter( props, animation.opts.specialEasing ); + + for ( ; index < length; index++ ) { + result = Animation.prefilters[ index ].call( animation, elem, props, animation.opts ); + if ( result ) { + if ( jQuery.isFunction( result.stop ) ) { + jQuery._queueHooks( animation.elem, animation.opts.queue ).stop = + jQuery.proxy( result.stop, result ); + } + return result; + } + } + + jQuery.map( props, createTween, animation ); + + if ( jQuery.isFunction( animation.opts.start ) ) { + animation.opts.start.call( elem, animation ); + } + + // Attach callbacks from options + animation + .progress( animation.opts.progress ) + .done( animation.opts.done, animation.opts.complete ) + .fail( animation.opts.fail ) + .always( animation.opts.always ); + + jQuery.fx.timer( + jQuery.extend( tick, { + elem: elem, + anim: animation, + queue: animation.opts.queue + } ) + ); + + return animation; +} + +jQuery.Animation = jQuery.extend( Animation, { + + tweeners: { + "*": [ function( prop, value ) { + var tween = this.createTween( prop, value ); + adjustCSS( tween.elem, prop, rcssNum.exec( value ), tween ); + return tween; + } ] + }, + + tweener: function( props, callback ) { + if ( jQuery.isFunction( props ) ) { + callback = props; + props = [ "*" ]; + } else { + props = props.match( rnothtmlwhite ); + } + + var prop, + index = 0, + length = props.length; + + for ( ; index < length; index++ ) { + prop = props[ index ]; + Animation.tweeners[ prop ] = Animation.tweeners[ prop ] || []; + Animation.tweeners[ prop ].unshift( callback ); + } + }, + + prefilters: [ defaultPrefilter ], + + prefilter: function( callback, prepend ) { + if ( prepend ) { + Animation.prefilters.unshift( callback ); + } else { + Animation.prefilters.push( callback ); + } + } +} ); + +jQuery.speed = function( speed, easing, fn ) { + var opt = speed && typeof speed === "object" ? jQuery.extend( {}, speed ) : { + complete: fn || !fn && easing || + jQuery.isFunction( speed ) && speed, + duration: speed, + easing: fn && easing || easing && !jQuery.isFunction( easing ) && easing + }; + + // Go to the end state if fx are off + if ( jQuery.fx.off ) { + opt.duration = 0; + + } else { + if ( typeof opt.duration !== "number" ) { + if ( opt.duration in jQuery.fx.speeds ) { + opt.duration = jQuery.fx.speeds[ opt.duration ]; + + } else { + opt.duration = jQuery.fx.speeds._default; + } + } + } + + // Normalize opt.queue - true/undefined/null -> "fx" + if ( opt.queue == null || opt.queue === true ) { + opt.queue = "fx"; + } + + // Queueing + opt.old = opt.complete; + + opt.complete = function() { + if ( jQuery.isFunction( opt.old ) ) { + opt.old.call( this ); + } + + if ( opt.queue ) { + jQuery.dequeue( this, opt.queue ); + } + }; + + return opt; +}; + +jQuery.fn.extend( { + fadeTo: function( speed, to, easing, callback ) { + + // Show any hidden elements after setting opacity to 0 + return this.filter( isHiddenWithinTree ).css( "opacity", 0 ).show() + + // Animate to the value specified + .end().animate( { opacity: to }, speed, easing, callback ); + }, + animate: function( prop, speed, easing, callback ) { + var empty = jQuery.isEmptyObject( prop ), + optall = jQuery.speed( speed, easing, callback ), + doAnimation = function() { + + // Operate on a copy of prop so per-property easing won't be lost + var anim = Animation( this, jQuery.extend( {}, prop ), optall ); + + // Empty animations, or finishing resolves immediately + if ( empty || dataPriv.get( this, "finish" ) ) { + anim.stop( true ); + } + }; + doAnimation.finish = doAnimation; + + return empty || optall.queue === false ? + this.each( doAnimation ) : + this.queue( optall.queue, doAnimation ); + }, + stop: function( type, clearQueue, gotoEnd ) { + var stopQueue = function( hooks ) { + var stop = hooks.stop; + delete hooks.stop; + stop( gotoEnd ); + }; + + if ( typeof type !== "string" ) { + gotoEnd = clearQueue; + clearQueue = type; + type = undefined; + } + if ( clearQueue && type !== false ) { + this.queue( type || "fx", [] ); + } + + return this.each( function() { + var dequeue = true, + index = type != null && type + "queueHooks", + timers = jQuery.timers, + data = dataPriv.get( this ); + + if ( index ) { + if ( data[ index ] && data[ index ].stop ) { + stopQueue( data[ index ] ); + } + } else { + for ( index in data ) { + if ( data[ index ] && data[ index ].stop && rrun.test( index ) ) { + stopQueue( data[ index ] ); + } + } + } + + for ( index = timers.length; index--; ) { + if ( timers[ index ].elem === this && + ( type == null || timers[ index ].queue === type ) ) { + + timers[ index ].anim.stop( gotoEnd ); + dequeue = false; + timers.splice( index, 1 ); + } + } + + // Start the next in the queue if the last step wasn't forced. + // Timers currently will call their complete callbacks, which + // will dequeue but only if they were gotoEnd. + if ( dequeue || !gotoEnd ) { + jQuery.dequeue( this, type ); + } + } ); + }, + finish: function( type ) { + if ( type !== false ) { + type = type || "fx"; + } + return this.each( function() { + var index, + data = dataPriv.get( this ), + queue = data[ type + "queue" ], + hooks = data[ type + "queueHooks" ], + timers = jQuery.timers, + length = queue ? queue.length : 0; + + // Enable finishing flag on private data + data.finish = true; + + // Empty the queue first + jQuery.queue( this, type, [] ); + + if ( hooks && hooks.stop ) { + hooks.stop.call( this, true ); + } + + // Look for any active animations, and finish them + for ( index = timers.length; index--; ) { + if ( timers[ index ].elem === this && timers[ index ].queue === type ) { + timers[ index ].anim.stop( true ); + timers.splice( index, 1 ); + } + } + + // Look for any animations in the old queue and finish them + for ( index = 0; index < length; index++ ) { + if ( queue[ index ] && queue[ index ].finish ) { + queue[ index ].finish.call( this ); + } + } + + // Turn off finishing flag + delete data.finish; + } ); + } +} ); + +jQuery.each( [ "toggle", "show", "hide" ], function( i, name ) { + var cssFn = jQuery.fn[ name ]; + jQuery.fn[ name ] = function( speed, easing, callback ) { + return speed == null || typeof speed === "boolean" ? + cssFn.apply( this, arguments ) : + this.animate( genFx( name, true ), speed, easing, callback ); + }; +} ); + +// Generate shortcuts for custom animations +jQuery.each( { + slideDown: genFx( "show" ), + slideUp: genFx( "hide" ), + slideToggle: genFx( "toggle" ), + fadeIn: { opacity: "show" }, + fadeOut: { opacity: "hide" }, + fadeToggle: { opacity: "toggle" } +}, function( name, props ) { + jQuery.fn[ name ] = function( speed, easing, callback ) { + return this.animate( props, speed, easing, callback ); + }; +} ); + +jQuery.timers = []; +jQuery.fx.tick = function() { + var timer, + i = 0, + timers = jQuery.timers; + + fxNow = jQuery.now(); + + for ( ; i < timers.length; i++ ) { + timer = timers[ i ]; + + // Run the timer and safely remove it when done (allowing for external removal) + if ( !timer() && timers[ i ] === timer ) { + timers.splice( i--, 1 ); + } + } + + if ( !timers.length ) { + jQuery.fx.stop(); + } + fxNow = undefined; +}; + +jQuery.fx.timer = function( timer ) { + jQuery.timers.push( timer ); + jQuery.fx.start(); +}; + +jQuery.fx.interval = 13; +jQuery.fx.start = function() { + if ( inProgress ) { + return; + } + + inProgress = true; + schedule(); +}; + +jQuery.fx.stop = function() { + inProgress = null; +}; + +jQuery.fx.speeds = { + slow: 600, + fast: 200, + + // Default speed + _default: 400 +}; + + +// Based off of the plugin by Clint Helfers, with permission. +// https://web.archive.org/web/20100324014747/http://blindsignals.com/index.php/2009/07/jquery-delay/ +jQuery.fn.delay = function( time, type ) { + time = jQuery.fx ? jQuery.fx.speeds[ time ] || time : time; + type = type || "fx"; + + return this.queue( type, function( next, hooks ) { + var timeout = window.setTimeout( next, time ); + hooks.stop = function() { + window.clearTimeout( timeout ); + }; + } ); +}; + + +( function() { + var input = document.createElement( "input" ), + select = document.createElement( "select" ), + opt = select.appendChild( document.createElement( "option" ) ); + + input.type = "checkbox"; + + // Support: Android <=4.3 only + // Default value for a checkbox should be "on" + support.checkOn = input.value !== ""; + + // Support: IE <=11 only + // Must access selectedIndex to make default options select + support.optSelected = opt.selected; + + // Support: IE <=11 only + // An input loses its value after becoming a radio + input = document.createElement( "input" ); + input.value = "t"; + input.type = "radio"; + support.radioValue = input.value === "t"; +} )(); + + +var boolHook, + attrHandle = jQuery.expr.attrHandle; + +jQuery.fn.extend( { + attr: function( name, value ) { + return access( this, jQuery.attr, name, value, arguments.length > 1 ); + }, + + removeAttr: function( name ) { + return this.each( function() { + jQuery.removeAttr( this, name ); + } ); + } +} ); + +jQuery.extend( { + attr: function( elem, name, value ) { + var ret, hooks, + nType = elem.nodeType; + + // Don't get/set attributes on text, comment and attribute nodes + if ( nType === 3 || nType === 8 || nType === 2 ) { + return; + } + + // Fallback to prop when attributes are not supported + if ( typeof elem.getAttribute === "undefined" ) { + return jQuery.prop( elem, name, value ); + } + + // Attribute hooks are determined by the lowercase version + // Grab necessary hook if one is defined + if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) { + hooks = jQuery.attrHooks[ name.toLowerCase() ] || + ( jQuery.expr.match.bool.test( name ) ? boolHook : undefined ); + } + + if ( value !== undefined ) { + if ( value === null ) { + jQuery.removeAttr( elem, name ); + return; + } + + if ( hooks && "set" in hooks && + ( ret = hooks.set( elem, value, name ) ) !== undefined ) { + return ret; + } + + elem.setAttribute( name, value + "" ); + return value; + } + + if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) { + return ret; + } + + ret = jQuery.find.attr( elem, name ); + + // Non-existent attributes return null, we normalize to undefined + return ret == null ? undefined : ret; + }, + + attrHooks: { + type: { + set: function( elem, value ) { + if ( !support.radioValue && value === "radio" && + nodeName( elem, "input" ) ) { + var val = elem.value; + elem.setAttribute( "type", value ); + if ( val ) { + elem.value = val; + } + return value; + } + } + } + }, + + removeAttr: function( elem, value ) { + var name, + i = 0, + + // Attribute names can contain non-HTML whitespace characters + // https://html.spec.whatwg.org/multipage/syntax.html#attributes-2 + attrNames = value && value.match( rnothtmlwhite ); + + if ( attrNames && elem.nodeType === 1 ) { + while ( ( name = attrNames[ i++ ] ) ) { + elem.removeAttribute( name ); + } + } + } +} ); + +// Hooks for boolean attributes +boolHook = { + set: function( elem, value, name ) { + if ( value === false ) { + + // Remove boolean attributes when set to false + jQuery.removeAttr( elem, name ); + } else { + elem.setAttribute( name, name ); + } + return name; + } +}; + +jQuery.each( jQuery.expr.match.bool.source.match( /\w+/g ), function( i, name ) { + var getter = attrHandle[ name ] || jQuery.find.attr; + + attrHandle[ name ] = function( elem, name, isXML ) { + var ret, handle, + lowercaseName = name.toLowerCase(); + + if ( !isXML ) { + + // Avoid an infinite loop by temporarily removing this function from the getter + handle = attrHandle[ lowercaseName ]; + attrHandle[ lowercaseName ] = ret; + ret = getter( elem, name, isXML ) != null ? + lowercaseName : + null; + attrHandle[ lowercaseName ] = handle; + } + return ret; + }; +} ); + + + + +var rfocusable = /^(?:input|select|textarea|button)$/i, + rclickable = /^(?:a|area)$/i; + +jQuery.fn.extend( { + prop: function( name, value ) { + return access( this, jQuery.prop, name, value, arguments.length > 1 ); + }, + + removeProp: function( name ) { + return this.each( function() { + delete this[ jQuery.propFix[ name ] || name ]; + } ); + } +} ); + +jQuery.extend( { + prop: function( elem, name, value ) { + var ret, hooks, + nType = elem.nodeType; + + // Don't get/set properties on text, comment and attribute nodes + if ( nType === 3 || nType === 8 || nType === 2 ) { + return; + } + + if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) { + + // Fix name and attach hooks + name = jQuery.propFix[ name ] || name; + hooks = jQuery.propHooks[ name ]; + } + + if ( value !== undefined ) { + if ( hooks && "set" in hooks && + ( ret = hooks.set( elem, value, name ) ) !== undefined ) { + return ret; + } + + return ( elem[ name ] = value ); + } + + if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) { + return ret; + } + + return elem[ name ]; + }, + + propHooks: { + tabIndex: { + get: function( elem ) { + + // Support: IE <=9 - 11 only + // elem.tabIndex doesn't always return the + // correct value when it hasn't been explicitly set + // https://web.archive.org/web/20141116233347/http://fluidproject.org/blog/2008/01/09/getting-setting-and-removing-tabindex-values-with-javascript/ + // Use proper attribute retrieval(#12072) + var tabindex = jQuery.find.attr( elem, "tabindex" ); + + if ( tabindex ) { + return parseInt( tabindex, 10 ); + } + + if ( + rfocusable.test( elem.nodeName ) || + rclickable.test( elem.nodeName ) && + elem.href + ) { + return 0; + } + + return -1; + } + } + }, + + propFix: { + "for": "htmlFor", + "class": "className" + } +} ); + +// Support: IE <=11 only +// Accessing the selectedIndex property +// forces the browser to respect setting selected +// on the option +// The getter ensures a default option is selected +// when in an optgroup +// eslint rule "no-unused-expressions" is disabled for this code +// since it considers such accessions noop +if ( !support.optSelected ) { + jQuery.propHooks.selected = { + get: function( elem ) { + + /* eslint no-unused-expressions: "off" */ + + var parent = elem.parentNode; + if ( parent && parent.parentNode ) { + parent.parentNode.selectedIndex; + } + return null; + }, + set: function( elem ) { + + /* eslint no-unused-expressions: "off" */ + + var parent = elem.parentNode; + if ( parent ) { + parent.selectedIndex; + + if ( parent.parentNode ) { + parent.parentNode.selectedIndex; + } + } + } + }; +} + +jQuery.each( [ + "tabIndex", + "readOnly", + "maxLength", + "cellSpacing", + "cellPadding", + "rowSpan", + "colSpan", + "useMap", + "frameBorder", + "contentEditable" +], function() { + jQuery.propFix[ this.toLowerCase() ] = this; +} ); + + + + + // Strip and collapse whitespace according to HTML spec + // https://html.spec.whatwg.org/multipage/infrastructure.html#strip-and-collapse-whitespace + function stripAndCollapse( value ) { + var tokens = value.match( rnothtmlwhite ) || []; + return tokens.join( " " ); + } + + +function getClass( elem ) { + return elem.getAttribute && elem.getAttribute( "class" ) || ""; +} + +jQuery.fn.extend( { + addClass: function( value ) { + var classes, elem, cur, curValue, clazz, j, finalValue, + i = 0; + + if ( jQuery.isFunction( value ) ) { + return this.each( function( j ) { + jQuery( this ).addClass( value.call( this, j, getClass( this ) ) ); + } ); + } + + if ( typeof value === "string" && value ) { + classes = value.match( rnothtmlwhite ) || []; + + while ( ( elem = this[ i++ ] ) ) { + curValue = getClass( elem ); + cur = elem.nodeType === 1 && ( " " + stripAndCollapse( curValue ) + " " ); + + if ( cur ) { + j = 0; + while ( ( clazz = classes[ j++ ] ) ) { + if ( cur.indexOf( " " + clazz + " " ) < 0 ) { + cur += clazz + " "; + } + } + + // Only assign if different to avoid unneeded rendering. + finalValue = stripAndCollapse( cur ); + if ( curValue !== finalValue ) { + elem.setAttribute( "class", finalValue ); + } + } + } + } + + return this; + }, + + removeClass: function( value ) { + var classes, elem, cur, curValue, clazz, j, finalValue, + i = 0; + + if ( jQuery.isFunction( value ) ) { + return this.each( function( j ) { + jQuery( this ).removeClass( value.call( this, j, getClass( this ) ) ); + } ); + } + + if ( !arguments.length ) { + return this.attr( "class", "" ); + } + + if ( typeof value === "string" && value ) { + classes = value.match( rnothtmlwhite ) || []; + + while ( ( elem = this[ i++ ] ) ) { + curValue = getClass( elem ); + + // This expression is here for better compressibility (see addClass) + cur = elem.nodeType === 1 && ( " " + stripAndCollapse( curValue ) + " " ); + + if ( cur ) { + j = 0; + while ( ( clazz = classes[ j++ ] ) ) { + + // Remove *all* instances + while ( cur.indexOf( " " + clazz + " " ) > -1 ) { + cur = cur.replace( " " + clazz + " ", " " ); + } + } + + // Only assign if different to avoid unneeded rendering. + finalValue = stripAndCollapse( cur ); + if ( curValue !== finalValue ) { + elem.setAttribute( "class", finalValue ); + } + } + } + } + + return this; + }, + + toggleClass: function( value, stateVal ) { + var type = typeof value; + + if ( typeof stateVal === "boolean" && type === "string" ) { + return stateVal ? this.addClass( value ) : this.removeClass( value ); + } + + if ( jQuery.isFunction( value ) ) { + return this.each( function( i ) { + jQuery( this ).toggleClass( + value.call( this, i, getClass( this ), stateVal ), + stateVal + ); + } ); + } + + return this.each( function() { + var className, i, self, classNames; + + if ( type === "string" ) { + + // Toggle individual class names + i = 0; + self = jQuery( this ); + classNames = value.match( rnothtmlwhite ) || []; + + while ( ( className = classNames[ i++ ] ) ) { + + // Check each className given, space separated list + if ( self.hasClass( className ) ) { + self.removeClass( className ); + } else { + self.addClass( className ); + } + } + + // Toggle whole class name + } else if ( value === undefined || type === "boolean" ) { + className = getClass( this ); + if ( className ) { + + // Store className if set + dataPriv.set( this, "__className__", className ); + } + + // If the element has a class name or if we're passed `false`, + // then remove the whole classname (if there was one, the above saved it). + // Otherwise bring back whatever was previously saved (if anything), + // falling back to the empty string if nothing was stored. + if ( this.setAttribute ) { + this.setAttribute( "class", + className || value === false ? + "" : + dataPriv.get( this, "__className__" ) || "" + ); + } + } + } ); + }, + + hasClass: function( selector ) { + var className, elem, + i = 0; + + className = " " + selector + " "; + while ( ( elem = this[ i++ ] ) ) { + if ( elem.nodeType === 1 && + ( " " + stripAndCollapse( getClass( elem ) ) + " " ).indexOf( className ) > -1 ) { + return true; + } + } + + return false; + } +} ); + + + + +var rreturn = /\r/g; + +jQuery.fn.extend( { + val: function( value ) { + var hooks, ret, isFunction, + elem = this[ 0 ]; + + if ( !arguments.length ) { + if ( elem ) { + hooks = jQuery.valHooks[ elem.type ] || + jQuery.valHooks[ elem.nodeName.toLowerCase() ]; + + if ( hooks && + "get" in hooks && + ( ret = hooks.get( elem, "value" ) ) !== undefined + ) { + return ret; + } + + ret = elem.value; + + // Handle most common string cases + if ( typeof ret === "string" ) { + return ret.replace( rreturn, "" ); + } + + // Handle cases where value is null/undef or number + return ret == null ? "" : ret; + } + + return; + } + + isFunction = jQuery.isFunction( value ); + + return this.each( function( i ) { + var val; + + if ( this.nodeType !== 1 ) { + return; + } + + if ( isFunction ) { + val = value.call( this, i, jQuery( this ).val() ); + } else { + val = value; + } + + // Treat null/undefined as ""; convert numbers to string + if ( val == null ) { + val = ""; + + } else if ( typeof val === "number" ) { + val += ""; + + } else if ( Array.isArray( val ) ) { + val = jQuery.map( val, function( value ) { + return value == null ? "" : value + ""; + } ); + } + + hooks = jQuery.valHooks[ this.type ] || jQuery.valHooks[ this.nodeName.toLowerCase() ]; + + // If set returns undefined, fall back to normal setting + if ( !hooks || !( "set" in hooks ) || hooks.set( this, val, "value" ) === undefined ) { + this.value = val; + } + } ); + } +} ); + +jQuery.extend( { + valHooks: { + option: { + get: function( elem ) { + + var val = jQuery.find.attr( elem, "value" ); + return val != null ? + val : + + // Support: IE <=10 - 11 only + // option.text throws exceptions (#14686, #14858) + // Strip and collapse whitespace + // https://html.spec.whatwg.org/#strip-and-collapse-whitespace + stripAndCollapse( jQuery.text( elem ) ); + } + }, + select: { + get: function( elem ) { + var value, option, i, + options = elem.options, + index = elem.selectedIndex, + one = elem.type === "select-one", + values = one ? null : [], + max = one ? index + 1 : options.length; + + if ( index < 0 ) { + i = max; + + } else { + i = one ? index : 0; + } + + // Loop through all the selected options + for ( ; i < max; i++ ) { + option = options[ i ]; + + // Support: IE <=9 only + // IE8-9 doesn't update selected after form reset (#2551) + if ( ( option.selected || i === index ) && + + // Don't return options that are disabled or in a disabled optgroup + !option.disabled && + ( !option.parentNode.disabled || + !nodeName( option.parentNode, "optgroup" ) ) ) { + + // Get the specific value for the option + value = jQuery( option ).val(); + + // We don't need an array for one selects + if ( one ) { + return value; + } + + // Multi-Selects return an array + values.push( value ); + } + } + + return values; + }, + + set: function( elem, value ) { + var optionSet, option, + options = elem.options, + values = jQuery.makeArray( value ), + i = options.length; + + while ( i-- ) { + option = options[ i ]; + + /* eslint-disable no-cond-assign */ + + if ( option.selected = + jQuery.inArray( jQuery.valHooks.option.get( option ), values ) > -1 + ) { + optionSet = true; + } + + /* eslint-enable no-cond-assign */ + } + + // Force browsers to behave consistently when non-matching value is set + if ( !optionSet ) { + elem.selectedIndex = -1; + } + return values; + } + } + } +} ); + +// Radios and checkboxes getter/setter +jQuery.each( [ "radio", "checkbox" ], function() { + jQuery.valHooks[ this ] = { + set: function( elem, value ) { + if ( Array.isArray( value ) ) { + return ( elem.checked = jQuery.inArray( jQuery( elem ).val(), value ) > -1 ); + } + } + }; + if ( !support.checkOn ) { + jQuery.valHooks[ this ].get = function( elem ) { + return elem.getAttribute( "value" ) === null ? "on" : elem.value; + }; + } +} ); + + + + +// Return jQuery for attributes-only inclusion + + +var rfocusMorph = /^(?:focusinfocus|focusoutblur)$/; + +jQuery.extend( jQuery.event, { + + trigger: function( event, data, elem, onlyHandlers ) { + + var i, cur, tmp, bubbleType, ontype, handle, special, + eventPath = [ elem || document ], + type = hasOwn.call( event, "type" ) ? event.type : event, + namespaces = hasOwn.call( event, "namespace" ) ? event.namespace.split( "." ) : []; + + cur = tmp = elem = elem || document; + + // Don't do events on text and comment nodes + if ( elem.nodeType === 3 || elem.nodeType === 8 ) { + return; + } + + // focus/blur morphs to focusin/out; ensure we're not firing them right now + if ( rfocusMorph.test( type + jQuery.event.triggered ) ) { + return; + } + + if ( type.indexOf( "." ) > -1 ) { + + // Namespaced trigger; create a regexp to match event type in handle() + namespaces = type.split( "." ); + type = namespaces.shift(); + namespaces.sort(); + } + ontype = type.indexOf( ":" ) < 0 && "on" + type; + + // Caller can pass in a jQuery.Event object, Object, or just an event type string + event = event[ jQuery.expando ] ? + event : + new jQuery.Event( type, typeof event === "object" && event ); + + // Trigger bitmask: & 1 for native handlers; & 2 for jQuery (always true) + event.isTrigger = onlyHandlers ? 2 : 3; + event.namespace = namespaces.join( "." ); + event.rnamespace = event.namespace ? + new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" ) : + null; + + // Clean up the event in case it is being reused + event.result = undefined; + if ( !event.target ) { + event.target = elem; + } + + // Clone any incoming data and prepend the event, creating the handler arg list + data = data == null ? + [ event ] : + jQuery.makeArray( data, [ event ] ); + + // Allow special events to draw outside the lines + special = jQuery.event.special[ type ] || {}; + if ( !onlyHandlers && special.trigger && special.trigger.apply( elem, data ) === false ) { + return; + } + + // Determine event propagation path in advance, per W3C events spec (#9951) + // Bubble up to document, then to window; watch for a global ownerDocument var (#9724) + if ( !onlyHandlers && !special.noBubble && !jQuery.isWindow( elem ) ) { + + bubbleType = special.delegateType || type; + if ( !rfocusMorph.test( bubbleType + type ) ) { + cur = cur.parentNode; + } + for ( ; cur; cur = cur.parentNode ) { + eventPath.push( cur ); + tmp = cur; + } + + // Only add window if we got to document (e.g., not plain obj or detached DOM) + if ( tmp === ( elem.ownerDocument || document ) ) { + eventPath.push( tmp.defaultView || tmp.parentWindow || window ); + } + } + + // Fire handlers on the event path + i = 0; + while ( ( cur = eventPath[ i++ ] ) && !event.isPropagationStopped() ) { + + event.type = i > 1 ? + bubbleType : + special.bindType || type; + + // jQuery handler + handle = ( dataPriv.get( cur, "events" ) || {} )[ event.type ] && + dataPriv.get( cur, "handle" ); + if ( handle ) { + handle.apply( cur, data ); + } + + // Native handler + handle = ontype && cur[ ontype ]; + if ( handle && handle.apply && acceptData( cur ) ) { + event.result = handle.apply( cur, data ); + if ( event.result === false ) { + event.preventDefault(); + } + } + } + event.type = type; + + // If nobody prevented the default action, do it now + if ( !onlyHandlers && !event.isDefaultPrevented() ) { + + if ( ( !special._default || + special._default.apply( eventPath.pop(), data ) === false ) && + acceptData( elem ) ) { + + // Call a native DOM method on the target with the same name as the event. + // Don't do default actions on window, that's where global variables be (#6170) + if ( ontype && jQuery.isFunction( elem[ type ] ) && !jQuery.isWindow( elem ) ) { + + // Don't re-trigger an onFOO event when we call its FOO() method + tmp = elem[ ontype ]; + + if ( tmp ) { + elem[ ontype ] = null; + } + + // Prevent re-triggering of the same event, since we already bubbled it above + jQuery.event.triggered = type; + elem[ type ](); + jQuery.event.triggered = undefined; + + if ( tmp ) { + elem[ ontype ] = tmp; + } + } + } + } + + return event.result; + }, + + // Piggyback on a donor event to simulate a different one + // Used only for `focus(in | out)` events + simulate: function( type, elem, event ) { + var e = jQuery.extend( + new jQuery.Event(), + event, + { + type: type, + isSimulated: true + } + ); + + jQuery.event.trigger( e, null, elem ); + } + +} ); + +jQuery.fn.extend( { + + trigger: function( type, data ) { + return this.each( function() { + jQuery.event.trigger( type, data, this ); + } ); + }, + triggerHandler: function( type, data ) { + var elem = this[ 0 ]; + if ( elem ) { + return jQuery.event.trigger( type, data, elem, true ); + } + } +} ); + + +jQuery.each( ( "blur focus focusin focusout resize scroll click dblclick " + + "mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " + + "change select submit keydown keypress keyup contextmenu" ).split( " " ), + function( i, name ) { + + // Handle event binding + jQuery.fn[ name ] = function( data, fn ) { + return arguments.length > 0 ? + this.on( name, null, data, fn ) : + this.trigger( name ); + }; +} ); + +jQuery.fn.extend( { + hover: function( fnOver, fnOut ) { + return this.mouseenter( fnOver ).mouseleave( fnOut || fnOver ); + } +} ); + + + + +support.focusin = "onfocusin" in window; + + +// Support: Firefox <=44 +// Firefox doesn't have focus(in | out) events +// Related ticket - https://bugzilla.mozilla.org/show_bug.cgi?id=687787 +// +// Support: Chrome <=48 - 49, Safari <=9.0 - 9.1 +// focus(in | out) events fire after focus & blur events, +// which is spec violation - http://www.w3.org/TR/DOM-Level-3-Events/#events-focusevent-event-order +// Related ticket - https://bugs.chromium.org/p/chromium/issues/detail?id=449857 +if ( !support.focusin ) { + jQuery.each( { focus: "focusin", blur: "focusout" }, function( orig, fix ) { + + // Attach a single capturing handler on the document while someone wants focusin/focusout + var handler = function( event ) { + jQuery.event.simulate( fix, event.target, jQuery.event.fix( event ) ); + }; + + jQuery.event.special[ fix ] = { + setup: function() { + var doc = this.ownerDocument || this, + attaches = dataPriv.access( doc, fix ); + + if ( !attaches ) { + doc.addEventListener( orig, handler, true ); + } + dataPriv.access( doc, fix, ( attaches || 0 ) + 1 ); + }, + teardown: function() { + var doc = this.ownerDocument || this, + attaches = dataPriv.access( doc, fix ) - 1; + + if ( !attaches ) { + doc.removeEventListener( orig, handler, true ); + dataPriv.remove( doc, fix ); + + } else { + dataPriv.access( doc, fix, attaches ); + } + } + }; + } ); +} +var location = window.location; + +var nonce = jQuery.now(); + +var rquery = ( /\?/ ); + + + +// Cross-browser xml parsing +jQuery.parseXML = function( data ) { + var xml; + if ( !data || typeof data !== "string" ) { + return null; + } + + // Support: IE 9 - 11 only + // IE throws on parseFromString with invalid input. + try { + xml = ( new window.DOMParser() ).parseFromString( data, "text/xml" ); + } catch ( e ) { + xml = undefined; + } + + if ( !xml || xml.getElementsByTagName( "parsererror" ).length ) { + jQuery.error( "Invalid XML: " + data ); + } + return xml; +}; + + +var + rbracket = /\[\]$/, + rCRLF = /\r?\n/g, + rsubmitterTypes = /^(?:submit|button|image|reset|file)$/i, + rsubmittable = /^(?:input|select|textarea|keygen)/i; + +function buildParams( prefix, obj, traditional, add ) { + var name; + + if ( Array.isArray( obj ) ) { + + // Serialize array item. + jQuery.each( obj, function( i, v ) { + if ( traditional || rbracket.test( prefix ) ) { + + // Treat each array item as a scalar. + add( prefix, v ); + + } else { + + // Item is non-scalar (array or object), encode its numeric index. + buildParams( + prefix + "[" + ( typeof v === "object" && v != null ? i : "" ) + "]", + v, + traditional, + add + ); + } + } ); + + } else if ( !traditional && jQuery.type( obj ) === "object" ) { + + // Serialize object item. + for ( name in obj ) { + buildParams( prefix + "[" + name + "]", obj[ name ], traditional, add ); + } + + } else { + + // Serialize scalar item. + add( prefix, obj ); + } +} + +// Serialize an array of form elements or a set of +// key/values into a query string +jQuery.param = function( a, traditional ) { + var prefix, + s = [], + add = function( key, valueOrFunction ) { + + // If value is a function, invoke it and use its return value + var value = jQuery.isFunction( valueOrFunction ) ? + valueOrFunction() : + valueOrFunction; + + s[ s.length ] = encodeURIComponent( key ) + "=" + + encodeURIComponent( value == null ? "" : value ); + }; + + // If an array was passed in, assume that it is an array of form elements. + if ( Array.isArray( a ) || ( a.jquery && !jQuery.isPlainObject( a ) ) ) { + + // Serialize the form elements + jQuery.each( a, function() { + add( this.name, this.value ); + } ); + + } else { + + // If traditional, encode the "old" way (the way 1.3.2 or older + // did it), otherwise encode params recursively. + for ( prefix in a ) { + buildParams( prefix, a[ prefix ], traditional, add ); + } + } + + // Return the resulting serialization + return s.join( "&" ); +}; + +jQuery.fn.extend( { + serialize: function() { + return jQuery.param( this.serializeArray() ); + }, + serializeArray: function() { + return this.map( function() { + + // Can add propHook for "elements" to filter or add form elements + var elements = jQuery.prop( this, "elements" ); + return elements ? jQuery.makeArray( elements ) : this; + } ) + .filter( function() { + var type = this.type; + + // Use .is( ":disabled" ) so that fieldset[disabled] works + return this.name && !jQuery( this ).is( ":disabled" ) && + rsubmittable.test( this.nodeName ) && !rsubmitterTypes.test( type ) && + ( this.checked || !rcheckableType.test( type ) ); + } ) + .map( function( i, elem ) { + var val = jQuery( this ).val(); + + if ( val == null ) { + return null; + } + + if ( Array.isArray( val ) ) { + return jQuery.map( val, function( val ) { + return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) }; + } ); + } + + return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) }; + } ).get(); + } +} ); + + +var + r20 = /%20/g, + rhash = /#.*$/, + rantiCache = /([?&])_=[^&]*/, + rheaders = /^(.*?):[ \t]*([^\r\n]*)$/mg, + + // #7653, #8125, #8152: local protocol detection + rlocalProtocol = /^(?:about|app|app-storage|.+-extension|file|res|widget):$/, + rnoContent = /^(?:GET|HEAD)$/, + rprotocol = /^\/\//, + + /* Prefilters + * 1) They are useful to introduce custom dataTypes (see ajax/jsonp.js for an example) + * 2) These are called: + * - BEFORE asking for a transport + * - AFTER param serialization (s.data is a string if s.processData is true) + * 3) key is the dataType + * 4) the catchall symbol "*" can be used + * 5) execution will start with transport dataType and THEN continue down to "*" if needed + */ + prefilters = {}, + + /* Transports bindings + * 1) key is the dataType + * 2) the catchall symbol "*" can be used + * 3) selection will start with transport dataType and THEN go to "*" if needed + */ + transports = {}, + + // Avoid comment-prolog char sequence (#10098); must appease lint and evade compression + allTypes = "*/".concat( "*" ), + + // Anchor tag for parsing the document origin + originAnchor = document.createElement( "a" ); + originAnchor.href = location.href; + +// Base "constructor" for jQuery.ajaxPrefilter and jQuery.ajaxTransport +function addToPrefiltersOrTransports( structure ) { + + // dataTypeExpression is optional and defaults to "*" + return function( dataTypeExpression, func ) { + + if ( typeof dataTypeExpression !== "string" ) { + func = dataTypeExpression; + dataTypeExpression = "*"; + } + + var dataType, + i = 0, + dataTypes = dataTypeExpression.toLowerCase().match( rnothtmlwhite ) || []; + + if ( jQuery.isFunction( func ) ) { + + // For each dataType in the dataTypeExpression + while ( ( dataType = dataTypes[ i++ ] ) ) { + + // Prepend if requested + if ( dataType[ 0 ] === "+" ) { + dataType = dataType.slice( 1 ) || "*"; + ( structure[ dataType ] = structure[ dataType ] || [] ).unshift( func ); + + // Otherwise append + } else { + ( structure[ dataType ] = structure[ dataType ] || [] ).push( func ); + } + } + } + }; +} + +// Base inspection function for prefilters and transports +function inspectPrefiltersOrTransports( structure, options, originalOptions, jqXHR ) { + + var inspected = {}, + seekingTransport = ( structure === transports ); + + function inspect( dataType ) { + var selected; + inspected[ dataType ] = true; + jQuery.each( structure[ dataType ] || [], function( _, prefilterOrFactory ) { + var dataTypeOrTransport = prefilterOrFactory( options, originalOptions, jqXHR ); + if ( typeof dataTypeOrTransport === "string" && + !seekingTransport && !inspected[ dataTypeOrTransport ] ) { + + options.dataTypes.unshift( dataTypeOrTransport ); + inspect( dataTypeOrTransport ); + return false; + } else if ( seekingTransport ) { + return !( selected = dataTypeOrTransport ); + } + } ); + return selected; + } + + return inspect( options.dataTypes[ 0 ] ) || !inspected[ "*" ] && inspect( "*" ); +} + +// A special extend for ajax options +// that takes "flat" options (not to be deep extended) +// Fixes #9887 +function ajaxExtend( target, src ) { + var key, deep, + flatOptions = jQuery.ajaxSettings.flatOptions || {}; + + for ( key in src ) { + if ( src[ key ] !== undefined ) { + ( flatOptions[ key ] ? target : ( deep || ( deep = {} ) ) )[ key ] = src[ key ]; + } + } + if ( deep ) { + jQuery.extend( true, target, deep ); + } + + return target; +} + +/* Handles responses to an ajax request: + * - finds the right dataType (mediates between content-type and expected dataType) + * - returns the corresponding response + */ +function ajaxHandleResponses( s, jqXHR, responses ) { + + var ct, type, finalDataType, firstDataType, + contents = s.contents, + dataTypes = s.dataTypes; + + // Remove auto dataType and get content-type in the process + while ( dataTypes[ 0 ] === "*" ) { + dataTypes.shift(); + if ( ct === undefined ) { + ct = s.mimeType || jqXHR.getResponseHeader( "Content-Type" ); + } + } + + // Check if we're dealing with a known content-type + if ( ct ) { + for ( type in contents ) { + if ( contents[ type ] && contents[ type ].test( ct ) ) { + dataTypes.unshift( type ); + break; + } + } + } + + // Check to see if we have a response for the expected dataType + if ( dataTypes[ 0 ] in responses ) { + finalDataType = dataTypes[ 0 ]; + } else { + + // Try convertible dataTypes + for ( type in responses ) { + if ( !dataTypes[ 0 ] || s.converters[ type + " " + dataTypes[ 0 ] ] ) { + finalDataType = type; + break; + } + if ( !firstDataType ) { + firstDataType = type; + } + } + + // Or just use first one + finalDataType = finalDataType || firstDataType; + } + + // If we found a dataType + // We add the dataType to the list if needed + // and return the corresponding response + if ( finalDataType ) { + if ( finalDataType !== dataTypes[ 0 ] ) { + dataTypes.unshift( finalDataType ); + } + return responses[ finalDataType ]; + } +} + +/* Chain conversions given the request and the original response + * Also sets the responseXXX fields on the jqXHR instance + */ +function ajaxConvert( s, response, jqXHR, isSuccess ) { + var conv2, current, conv, tmp, prev, + converters = {}, + + // Work with a copy of dataTypes in case we need to modify it for conversion + dataTypes = s.dataTypes.slice(); + + // Create converters map with lowercased keys + if ( dataTypes[ 1 ] ) { + for ( conv in s.converters ) { + converters[ conv.toLowerCase() ] = s.converters[ conv ]; + } + } + + current = dataTypes.shift(); + + // Convert to each sequential dataType + while ( current ) { + + if ( s.responseFields[ current ] ) { + jqXHR[ s.responseFields[ current ] ] = response; + } + + // Apply the dataFilter if provided + if ( !prev && isSuccess && s.dataFilter ) { + response = s.dataFilter( response, s.dataType ); + } + + prev = current; + current = dataTypes.shift(); + + if ( current ) { + + // There's only work to do if current dataType is non-auto + if ( current === "*" ) { + + current = prev; + + // Convert response if prev dataType is non-auto and differs from current + } else if ( prev !== "*" && prev !== current ) { + + // Seek a direct converter + conv = converters[ prev + " " + current ] || converters[ "* " + current ]; + + // If none found, seek a pair + if ( !conv ) { + for ( conv2 in converters ) { + + // If conv2 outputs current + tmp = conv2.split( " " ); + if ( tmp[ 1 ] === current ) { + + // If prev can be converted to accepted input + conv = converters[ prev + " " + tmp[ 0 ] ] || + converters[ "* " + tmp[ 0 ] ]; + if ( conv ) { + + // Condense equivalence converters + if ( conv === true ) { + conv = converters[ conv2 ]; + + // Otherwise, insert the intermediate dataType + } else if ( converters[ conv2 ] !== true ) { + current = tmp[ 0 ]; + dataTypes.unshift( tmp[ 1 ] ); + } + break; + } + } + } + } + + // Apply converter (if not an equivalence) + if ( conv !== true ) { + + // Unless errors are allowed to bubble, catch and return them + if ( conv && s.throws ) { + response = conv( response ); + } else { + try { + response = conv( response ); + } catch ( e ) { + return { + state: "parsererror", + error: conv ? e : "No conversion from " + prev + " to " + current + }; + } + } + } + } + } + } + + return { state: "success", data: response }; +} + +jQuery.extend( { + + // Counter for holding the number of active queries + active: 0, + + // Last-Modified header cache for next request + lastModified: {}, + etag: {}, + + ajaxSettings: { + url: location.href, + type: "GET", + isLocal: rlocalProtocol.test( location.protocol ), + global: true, + processData: true, + async: true, + contentType: "application/x-www-form-urlencoded; charset=UTF-8", + + /* + timeout: 0, + data: null, + dataType: null, + username: null, + password: null, + cache: null, + throws: false, + traditional: false, + headers: {}, + */ + + accepts: { + "*": allTypes, + text: "text/plain", + html: "text/html", + xml: "application/xml, text/xml", + json: "application/json, text/javascript" + }, + + contents: { + xml: /\bxml\b/, + html: /\bhtml/, + json: /\bjson\b/ + }, + + responseFields: { + xml: "responseXML", + text: "responseText", + json: "responseJSON" + }, + + // Data converters + // Keys separate source (or catchall "*") and destination types with a single space + converters: { + + // Convert anything to text + "* text": String, + + // Text to html (true = no transformation) + "text html": true, + + // Evaluate text as a json expression + "text json": JSON.parse, + + // Parse text as xml + "text xml": jQuery.parseXML + }, + + // For options that shouldn't be deep extended: + // you can add your own custom options here if + // and when you create one that shouldn't be + // deep extended (see ajaxExtend) + flatOptions: { + url: true, + context: true + } + }, + + // Creates a full fledged settings object into target + // with both ajaxSettings and settings fields. + // If target is omitted, writes into ajaxSettings. + ajaxSetup: function( target, settings ) { + return settings ? + + // Building a settings object + ajaxExtend( ajaxExtend( target, jQuery.ajaxSettings ), settings ) : + + // Extending ajaxSettings + ajaxExtend( jQuery.ajaxSettings, target ); + }, + + ajaxPrefilter: addToPrefiltersOrTransports( prefilters ), + ajaxTransport: addToPrefiltersOrTransports( transports ), + + // Main method + ajax: function( url, options ) { + + // If url is an object, simulate pre-1.5 signature + if ( typeof url === "object" ) { + options = url; + url = undefined; + } + + // Force options to be an object + options = options || {}; + + var transport, + + // URL without anti-cache param + cacheURL, + + // Response headers + responseHeadersString, + responseHeaders, + + // timeout handle + timeoutTimer, + + // Url cleanup var + urlAnchor, + + // Request state (becomes false upon send and true upon completion) + completed, + + // To know if global events are to be dispatched + fireGlobals, + + // Loop variable + i, + + // uncached part of the url + uncached, + + // Create the final options object + s = jQuery.ajaxSetup( {}, options ), + + // Callbacks context + callbackContext = s.context || s, + + // Context for global events is callbackContext if it is a DOM node or jQuery collection + globalEventContext = s.context && + ( callbackContext.nodeType || callbackContext.jquery ) ? + jQuery( callbackContext ) : + jQuery.event, + + // Deferreds + deferred = jQuery.Deferred(), + completeDeferred = jQuery.Callbacks( "once memory" ), + + // Status-dependent callbacks + statusCode = s.statusCode || {}, + + // Headers (they are sent all at once) + requestHeaders = {}, + requestHeadersNames = {}, + + // Default abort message + strAbort = "canceled", + + // Fake xhr + jqXHR = { + readyState: 0, + + // Builds headers hashtable if needed + getResponseHeader: function( key ) { + var match; + if ( completed ) { + if ( !responseHeaders ) { + responseHeaders = {}; + while ( ( match = rheaders.exec( responseHeadersString ) ) ) { + responseHeaders[ match[ 1 ].toLowerCase() ] = match[ 2 ]; + } + } + match = responseHeaders[ key.toLowerCase() ]; + } + return match == null ? null : match; + }, + + // Raw string + getAllResponseHeaders: function() { + return completed ? responseHeadersString : null; + }, + + // Caches the header + setRequestHeader: function( name, value ) { + if ( completed == null ) { + name = requestHeadersNames[ name.toLowerCase() ] = + requestHeadersNames[ name.toLowerCase() ] || name; + requestHeaders[ name ] = value; + } + return this; + }, + + // Overrides response content-type header + overrideMimeType: function( type ) { + if ( completed == null ) { + s.mimeType = type; + } + return this; + }, + + // Status-dependent callbacks + statusCode: function( map ) { + var code; + if ( map ) { + if ( completed ) { + + // Execute the appropriate callbacks + jqXHR.always( map[ jqXHR.status ] ); + } else { + + // Lazy-add the new callbacks in a way that preserves old ones + for ( code in map ) { + statusCode[ code ] = [ statusCode[ code ], map[ code ] ]; + } + } + } + return this; + }, + + // Cancel the request + abort: function( statusText ) { + var finalText = statusText || strAbort; + if ( transport ) { + transport.abort( finalText ); + } + done( 0, finalText ); + return this; + } + }; + + // Attach deferreds + deferred.promise( jqXHR ); + + // Add protocol if not provided (prefilters might expect it) + // Handle falsy url in the settings object (#10093: consistency with old signature) + // We also use the url parameter if available + s.url = ( ( url || s.url || location.href ) + "" ) + .replace( rprotocol, location.protocol + "//" ); + + // Alias method option to type as per ticket #12004 + s.type = options.method || options.type || s.method || s.type; + + // Extract dataTypes list + s.dataTypes = ( s.dataType || "*" ).toLowerCase().match( rnothtmlwhite ) || [ "" ]; + + // A cross-domain request is in order when the origin doesn't match the current origin. + if ( s.crossDomain == null ) { + urlAnchor = document.createElement( "a" ); + + // Support: IE <=8 - 11, Edge 12 - 13 + // IE throws exception on accessing the href property if url is malformed, + // e.g. http://example.com:80x/ + try { + urlAnchor.href = s.url; + + // Support: IE <=8 - 11 only + // Anchor's host property isn't correctly set when s.url is relative + urlAnchor.href = urlAnchor.href; + s.crossDomain = originAnchor.protocol + "//" + originAnchor.host !== + urlAnchor.protocol + "//" + urlAnchor.host; + } catch ( e ) { + + // If there is an error parsing the URL, assume it is crossDomain, + // it can be rejected by the transport if it is invalid + s.crossDomain = true; + } + } + + // Convert data if not already a string + if ( s.data && s.processData && typeof s.data !== "string" ) { + s.data = jQuery.param( s.data, s.traditional ); + } + + // Apply prefilters + inspectPrefiltersOrTransports( prefilters, s, options, jqXHR ); + + // If request was aborted inside a prefilter, stop there + if ( completed ) { + return jqXHR; + } + + // We can fire global events as of now if asked to + // Don't fire events if jQuery.event is undefined in an AMD-usage scenario (#15118) + fireGlobals = jQuery.event && s.global; + + // Watch for a new set of requests + if ( fireGlobals && jQuery.active++ === 0 ) { + jQuery.event.trigger( "ajaxStart" ); + } + + // Uppercase the type + s.type = s.type.toUpperCase(); + + // Determine if request has content + s.hasContent = !rnoContent.test( s.type ); + + // Save the URL in case we're toying with the If-Modified-Since + // and/or If-None-Match header later on + // Remove hash to simplify url manipulation + cacheURL = s.url.replace( rhash, "" ); + + // More options handling for requests with no content + if ( !s.hasContent ) { + + // Remember the hash so we can put it back + uncached = s.url.slice( cacheURL.length ); + + // If data is available, append data to url + if ( s.data ) { + cacheURL += ( rquery.test( cacheURL ) ? "&" : "?" ) + s.data; + + // #9682: remove data so that it's not used in an eventual retry + delete s.data; + } + + // Add or update anti-cache param if needed + if ( s.cache === false ) { + cacheURL = cacheURL.replace( rantiCache, "$1" ); + uncached = ( rquery.test( cacheURL ) ? "&" : "?" ) + "_=" + ( nonce++ ) + uncached; + } + + // Put hash and anti-cache on the URL that will be requested (gh-1732) + s.url = cacheURL + uncached; + + // Change '%20' to '+' if this is encoded form body content (gh-2658) + } else if ( s.data && s.processData && + ( s.contentType || "" ).indexOf( "application/x-www-form-urlencoded" ) === 0 ) { + s.data = s.data.replace( r20, "+" ); + } + + // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode. + if ( s.ifModified ) { + if ( jQuery.lastModified[ cacheURL ] ) { + jqXHR.setRequestHeader( "If-Modified-Since", jQuery.lastModified[ cacheURL ] ); + } + if ( jQuery.etag[ cacheURL ] ) { + jqXHR.setRequestHeader( "If-None-Match", jQuery.etag[ cacheURL ] ); + } + } + + // Set the correct header, if data is being sent + if ( s.data && s.hasContent && s.contentType !== false || options.contentType ) { + jqXHR.setRequestHeader( "Content-Type", s.contentType ); + } + + // Set the Accepts header for the server, depending on the dataType + jqXHR.setRequestHeader( + "Accept", + s.dataTypes[ 0 ] && s.accepts[ s.dataTypes[ 0 ] ] ? + s.accepts[ s.dataTypes[ 0 ] ] + + ( s.dataTypes[ 0 ] !== "*" ? ", " + allTypes + "; q=0.01" : "" ) : + s.accepts[ "*" ] + ); + + // Check for headers option + for ( i in s.headers ) { + jqXHR.setRequestHeader( i, s.headers[ i ] ); + } + + // Allow custom headers/mimetypes and early abort + if ( s.beforeSend && + ( s.beforeSend.call( callbackContext, jqXHR, s ) === false || completed ) ) { + + // Abort if not done already and return + return jqXHR.abort(); + } + + // Aborting is no longer a cancellation + strAbort = "abort"; + + // Install callbacks on deferreds + completeDeferred.add( s.complete ); + jqXHR.done( s.success ); + jqXHR.fail( s.error ); + + // Get transport + transport = inspectPrefiltersOrTransports( transports, s, options, jqXHR ); + + // If no transport, we auto-abort + if ( !transport ) { + done( -1, "No Transport" ); + } else { + jqXHR.readyState = 1; + + // Send global event + if ( fireGlobals ) { + globalEventContext.trigger( "ajaxSend", [ jqXHR, s ] ); + } + + // If request was aborted inside ajaxSend, stop there + if ( completed ) { + return jqXHR; + } + + // Timeout + if ( s.async && s.timeout > 0 ) { + timeoutTimer = window.setTimeout( function() { + jqXHR.abort( "timeout" ); + }, s.timeout ); + } + + try { + completed = false; + transport.send( requestHeaders, done ); + } catch ( e ) { + + // Rethrow post-completion exceptions + if ( completed ) { + throw e; + } + + // Propagate others as results + done( -1, e ); + } + } + + // Callback for when everything is done + function done( status, nativeStatusText, responses, headers ) { + var isSuccess, success, error, response, modified, + statusText = nativeStatusText; + + // Ignore repeat invocations + if ( completed ) { + return; + } + + completed = true; + + // Clear timeout if it exists + if ( timeoutTimer ) { + window.clearTimeout( timeoutTimer ); + } + + // Dereference transport for early garbage collection + // (no matter how long the jqXHR object will be used) + transport = undefined; + + // Cache response headers + responseHeadersString = headers || ""; + + // Set readyState + jqXHR.readyState = status > 0 ? 4 : 0; + + // Determine if successful + isSuccess = status >= 200 && status < 300 || status === 304; + + // Get response data + if ( responses ) { + response = ajaxHandleResponses( s, jqXHR, responses ); + } + + // Convert no matter what (that way responseXXX fields are always set) + response = ajaxConvert( s, response, jqXHR, isSuccess ); + + // If successful, handle type chaining + if ( isSuccess ) { + + // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode. + if ( s.ifModified ) { + modified = jqXHR.getResponseHeader( "Last-Modified" ); + if ( modified ) { + jQuery.lastModified[ cacheURL ] = modified; + } + modified = jqXHR.getResponseHeader( "etag" ); + if ( modified ) { + jQuery.etag[ cacheURL ] = modified; + } + } + + // if no content + if ( status === 204 || s.type === "HEAD" ) { + statusText = "nocontent"; + + // if not modified + } else if ( status === 304 ) { + statusText = "notmodified"; + + // If we have data, let's convert it + } else { + statusText = response.state; + success = response.data; + error = response.error; + isSuccess = !error; + } + } else { + + // Extract error from statusText and normalize for non-aborts + error = statusText; + if ( status || !statusText ) { + statusText = "error"; + if ( status < 0 ) { + status = 0; + } + } + } + + // Set data for the fake xhr object + jqXHR.status = status; + jqXHR.statusText = ( nativeStatusText || statusText ) + ""; + + // Success/Error + if ( isSuccess ) { + deferred.resolveWith( callbackContext, [ success, statusText, jqXHR ] ); + } else { + deferred.rejectWith( callbackContext, [ jqXHR, statusText, error ] ); + } + + // Status-dependent callbacks + jqXHR.statusCode( statusCode ); + statusCode = undefined; + + if ( fireGlobals ) { + globalEventContext.trigger( isSuccess ? "ajaxSuccess" : "ajaxError", + [ jqXHR, s, isSuccess ? success : error ] ); + } + + // Complete + completeDeferred.fireWith( callbackContext, [ jqXHR, statusText ] ); + + if ( fireGlobals ) { + globalEventContext.trigger( "ajaxComplete", [ jqXHR, s ] ); + + // Handle the global AJAX counter + if ( !( --jQuery.active ) ) { + jQuery.event.trigger( "ajaxStop" ); + } + } + } + + return jqXHR; + }, + + getJSON: function( url, data, callback ) { + return jQuery.get( url, data, callback, "json" ); + }, + + getScript: function( url, callback ) { + return jQuery.get( url, undefined, callback, "script" ); + } +} ); + +jQuery.each( [ "get", "post" ], function( i, method ) { + jQuery[ method ] = function( url, data, callback, type ) { + + // Shift arguments if data argument was omitted + if ( jQuery.isFunction( data ) ) { + type = type || callback; + callback = data; + data = undefined; + } + + // The url can be an options object (which then must have .url) + return jQuery.ajax( jQuery.extend( { + url: url, + type: method, + dataType: type, + data: data, + success: callback + }, jQuery.isPlainObject( url ) && url ) ); + }; +} ); + + +jQuery._evalUrl = function( url ) { + return jQuery.ajax( { + url: url, + + // Make this explicit, since user can override this through ajaxSetup (#11264) + type: "GET", + dataType: "script", + cache: true, + async: false, + global: false, + "throws": true + } ); +}; + + +jQuery.fn.extend( { + wrapAll: function( html ) { + var wrap; + + if ( this[ 0 ] ) { + if ( jQuery.isFunction( html ) ) { + html = html.call( this[ 0 ] ); + } + + // The elements to wrap the target around + wrap = jQuery( html, this[ 0 ].ownerDocument ).eq( 0 ).clone( true ); + + if ( this[ 0 ].parentNode ) { + wrap.insertBefore( this[ 0 ] ); + } + + wrap.map( function() { + var elem = this; + + while ( elem.firstElementChild ) { + elem = elem.firstElementChild; + } + + return elem; + } ).append( this ); + } + + return this; + }, + + wrapInner: function( html ) { + if ( jQuery.isFunction( html ) ) { + return this.each( function( i ) { + jQuery( this ).wrapInner( html.call( this, i ) ); + } ); + } + + return this.each( function() { + var self = jQuery( this ), + contents = self.contents(); + + if ( contents.length ) { + contents.wrapAll( html ); + + } else { + self.append( html ); + } + } ); + }, + + wrap: function( html ) { + var isFunction = jQuery.isFunction( html ); + + return this.each( function( i ) { + jQuery( this ).wrapAll( isFunction ? html.call( this, i ) : html ); + } ); + }, + + unwrap: function( selector ) { + this.parent( selector ).not( "body" ).each( function() { + jQuery( this ).replaceWith( this.childNodes ); + } ); + return this; + } +} ); + + +jQuery.expr.pseudos.hidden = function( elem ) { + return !jQuery.expr.pseudos.visible( elem ); +}; +jQuery.expr.pseudos.visible = function( elem ) { + return !!( elem.offsetWidth || elem.offsetHeight || elem.getClientRects().length ); +}; + + + + +jQuery.ajaxSettings.xhr = function() { + try { + return new window.XMLHttpRequest(); + } catch ( e ) {} +}; + +var xhrSuccessStatus = { + + // File protocol always yields status code 0, assume 200 + 0: 200, + + // Support: IE <=9 only + // #1450: sometimes IE returns 1223 when it should be 204 + 1223: 204 + }, + xhrSupported = jQuery.ajaxSettings.xhr(); + +support.cors = !!xhrSupported && ( "withCredentials" in xhrSupported ); +support.ajax = xhrSupported = !!xhrSupported; + +jQuery.ajaxTransport( function( options ) { + var callback, errorCallback; + + // Cross domain only allowed if supported through XMLHttpRequest + if ( support.cors || xhrSupported && !options.crossDomain ) { + return { + send: function( headers, complete ) { + var i, + xhr = options.xhr(); + + xhr.open( + options.type, + options.url, + options.async, + options.username, + options.password + ); + + // Apply custom fields if provided + if ( options.xhrFields ) { + for ( i in options.xhrFields ) { + xhr[ i ] = options.xhrFields[ i ]; + } + } + + // Override mime type if needed + if ( options.mimeType && xhr.overrideMimeType ) { + xhr.overrideMimeType( options.mimeType ); + } + + // X-Requested-With header + // For cross-domain requests, seeing as conditions for a preflight are + // akin to a jigsaw puzzle, we simply never set it to be sure. + // (it can always be set on a per-request basis or even using ajaxSetup) + // For same-domain requests, won't change header if already provided. + if ( !options.crossDomain && !headers[ "X-Requested-With" ] ) { + headers[ "X-Requested-With" ] = "XMLHttpRequest"; + } + + // Set headers + for ( i in headers ) { + xhr.setRequestHeader( i, headers[ i ] ); + } + + // Callback + callback = function( type ) { + return function() { + if ( callback ) { + callback = errorCallback = xhr.onload = + xhr.onerror = xhr.onabort = xhr.onreadystatechange = null; + + if ( type === "abort" ) { + xhr.abort(); + } else if ( type === "error" ) { + + // Support: IE <=9 only + // On a manual native abort, IE9 throws + // errors on any property access that is not readyState + if ( typeof xhr.status !== "number" ) { + complete( 0, "error" ); + } else { + complete( + + // File: protocol always yields status 0; see #8605, #14207 + xhr.status, + xhr.statusText + ); + } + } else { + complete( + xhrSuccessStatus[ xhr.status ] || xhr.status, + xhr.statusText, + + // Support: IE <=9 only + // IE9 has no XHR2 but throws on binary (trac-11426) + // For XHR2 non-text, let the caller handle it (gh-2498) + ( xhr.responseType || "text" ) !== "text" || + typeof xhr.responseText !== "string" ? + { binary: xhr.response } : + { text: xhr.responseText }, + xhr.getAllResponseHeaders() + ); + } + } + }; + }; + + // Listen to events + xhr.onload = callback(); + errorCallback = xhr.onerror = callback( "error" ); + + // Support: IE 9 only + // Use onreadystatechange to replace onabort + // to handle uncaught aborts + if ( xhr.onabort !== undefined ) { + xhr.onabort = errorCallback; + } else { + xhr.onreadystatechange = function() { + + // Check readyState before timeout as it changes + if ( xhr.readyState === 4 ) { + + // Allow onerror to be called first, + // but that will not handle a native abort + // Also, save errorCallback to a variable + // as xhr.onerror cannot be accessed + window.setTimeout( function() { + if ( callback ) { + errorCallback(); + } + } ); + } + }; + } + + // Create the abort callback + callback = callback( "abort" ); + + try { + + // Do send the request (this may raise an exception) + xhr.send( options.hasContent && options.data || null ); + } catch ( e ) { + + // #14683: Only rethrow if this hasn't been notified as an error yet + if ( callback ) { + throw e; + } + } + }, + + abort: function() { + if ( callback ) { + callback(); + } + } + }; + } +} ); + + + + +// Prevent auto-execution of scripts when no explicit dataType was provided (See gh-2432) +jQuery.ajaxPrefilter( function( s ) { + if ( s.crossDomain ) { + s.contents.script = false; + } +} ); + +// Install script dataType +jQuery.ajaxSetup( { + accepts: { + script: "text/javascript, application/javascript, " + + "application/ecmascript, application/x-ecmascript" + }, + contents: { + script: /\b(?:java|ecma)script\b/ + }, + converters: { + "text script": function( text ) { + jQuery.globalEval( text ); + return text; + } + } +} ); + +// Handle cache's special case and crossDomain +jQuery.ajaxPrefilter( "script", function( s ) { + if ( s.cache === undefined ) { + s.cache = false; + } + if ( s.crossDomain ) { + s.type = "GET"; + } +} ); + +// Bind script tag hack transport +jQuery.ajaxTransport( "script", function( s ) { + + // This transport only deals with cross domain requests + if ( s.crossDomain ) { + var script, callback; + return { + send: function( _, complete ) { + script = jQuery( " + + + + + \ No newline at end of file diff --git a/package.json b/package.json new file mode 100644 index 00000000..d5ec9f37 --- /dev/null +++ b/package.json @@ -0,0 +1,27 @@ +{ + "scripts": { + "build": "webpack", + "start": "webpack-dev-server --hot --inline", + "deploy": "node deploy.js" + }, + "dependencies": { + "babel-core": "^6.24.1", + "babel-loader": "^6.4.1", + "babel-preset-es2015": "^6.24.1", + "file-loader": "^0.11.1", + "webpack": "^2.3.3", + "webpack-dev-server": "^2.4.2", + "webpack-glsl-loader": "^1.0.1", + "webgl-utils": "^1.0.1", + "dat-gui": "^0.5.0", + "stats-js": "^1.0.0-alpha1", + "simple-git": "^1.65.0", + "gh-pages-deploy": "^0.4.2", + "obj-mtl-loader": "^0.0.5", + "glm-js": "^0.0.6-c", + "primitive-sphere": "^3.0.0", + "primitive-cube": "^2.0.1", + "primitive-torus": "^1.0.4", + "jquery": "^3.2.1" + } +} \ No newline at end of file diff --git a/progress.md b/progress.md new file mode 100644 index 00000000..536ceea1 --- /dev/null +++ b/progress.md @@ -0,0 +1,31 @@ +Milestone 1 +----- + +Summary +----- + +Created a particle simulation on the GPU using transform feedback. In the demo, I simulate 1,000,000 particles which move around at random velocities. + + +Method +----- + +Created two shader programs (particles program & draw program), one to perform any calculations for the position and velocity of the particles and the other to draw the particles. + +Before the draw call for the particles program, the rasterizer is disabled since no drawing is required and transform feedback is initiated. After the draw call, transform feedback returns the results from the particles program vertex shader (outPos, outVel) which are stored in buffers. The rasterizer is then re-enabled and the draw program is used to draw the points. Finally, the attribute buffers of the particles shader are swapped with the buffers from transform feedback to be used as input in the next iteration. + + +Milestone 2 +----- + +Summary +----- + +- Added a perspective camera +- Added mouse controls to rotate camera and to zoom in/out +- Particles take the shape of sample objs including an animated Doberman which can be selected using the GUI. + Currently, the Doberman animation is created by storing each frame in a separate obj. This causes the application to take a while to load. Also, for each frame, I replace the buffer data in the CPU side instead of feeding all the data for the frames into the GPU at the start. This will be changed by the final submission. + + + +Demo: https://msoudy.github.io/Final-Project/ \ No newline at end of file diff --git a/sample/Insane.lrc b/sample/Insane.lrc new file mode 100644 index 00000000..ecb27e56 --- /dev/null +++ b/sample/Insane.lrc @@ -0,0 +1,59 @@ +[00:00.00]Artist: Loving Caliber +[00:05.00]Title: Insane + +[00:10.00]I work in shadows +[00:12.00]No one ever sees me, sees me +[00:14.00]I'm losing every battle +[00:17.00]Can somebody save me, save me? +[00:20.00]I never know which way I'm supposed to go +[00:23.00]All I do is stare out my window +[00:25.00]I feel like just as a ghost that you walk right through +[00:28.00]I feel like a shadow +[00:30.00]I just wanna know +[00:32.00]Am I insane, insane? +[00:36.00]I just wanna know +[00:38.00]Am I insane, insane? +[00:41.00]I never know which way I'm supposed to go +[00:43.00]All I do is stare out the window +[00:46.00]I just wanna know +[00:51.00]Whoa, am I insane? +[00:54.00]I sit in silenece +[00:56.00]Nobody can hear me, hear me +[00:59.00]Not even when I'm crying +[01:02.00]I need someone to save me, save me +[01:04.00]I never know which road I'm supposed to take +[01:07.00]Every choice I make gives me headache +[01:09.00]I feel like just as a ghost that you walk right through +[01:12.00]I feel like a shadow +[01:15.00]I just wanna know +[01:17.00]Am I insane, insane? +[01:20.00]I just wanna know +[01:22.00]Am I insane, insane? +[01:25.00]I never know which way I'm supposed to go +[01:28.00]All I do is stare out the window +[01:30.00]I just wanna know +[01:35.00]Whoa, am I insane? +[01:40.00]Am I insane? +[01:45.00]Whoa, am I insane? +[01:51.00]Am I insane? +[02:02.00]I sit in silenece +[02:07.00]Nobody can see me, see me +[02:10.00]Nobody can see me, see me +[02:12.00]I wonder can you hear me, hear me? +[02:17.00]I just wanna know +[02:20.00]Am I insane, insane? +[02:22.00]I just wanna know +[02:25.00]Am I insane, insane? +[02:28.00]I never know which way I'm supposed to go +[02:30.00]All I do is stare out the window +[02:33.00]I just wanna know +[02:38.00]Am I insane? +[02:39.00]I just wanna know +[02:40.00]Am I insane, insane? +[02:43.00]I just wanna know +[02:46.00]Am I insane, insane? +[02:48.00]I never know which way I'm supposed to go +[02:51.00]All I do is stare out the window +[02:54.00]I just wanna know +[02:58.00]Whoa, Aa I insane? + diff --git a/sample/Insane.mp3 b/sample/Insane.mp3 new file mode 100644 index 00000000..b00f3199 Binary files /dev/null and b/sample/Insane.mp3 differ diff --git a/src/camera.js b/src/camera.js new file mode 100644 index 00000000..18ce43ec --- /dev/null +++ b/src/camera.js @@ -0,0 +1,114 @@ +export default function Camera(canvas) { + + this.canvas = canvas; + this.model = glm.mat4(); + this.projection = glm.mat4(); + this.view = glm.mat4(); + this.projectionView; + this.look = glm.vec3(0,0,-1); + this.up = glm.vec3(0,1,0); + this.world_up = glm.vec3(0,1,0); + this.right = glm.vec3(1,0,0); + this.eye = glm.vec3(0,0,50); + this.ref = glm.vec3(0,0,0); + + this.fovy =45; + this.aspectRatio = canvas.width / canvas.height; + this.nearClip = 0.1; + this.farClip = 1000; + + this.totalX = 90; + this.totalY = 0; + this.rotationYDir = 1; + this.active = false; +} + +Camera.prototype.reset = function() { + this.model = glm.mat4(); + this.projection = glm.mat4(); + this.view = glm.mat4(); + this.projectionView; + this.look = glm.vec3(0,0,-1); + this.up = glm.vec3(0,1,0); + this.world_up = glm.vec3(0,1,0); + this.right = glm.vec3(1,0,0); + this.eye = glm.vec3(0,0,50); + this.ref = glm.vec3(0,0,0); + + this.totalX = 90; + this.totalY = 0; + this.rotationYDir = 1; + this.active = false; +} + +Camera.prototype.getModel = function() { + return this.model; +} + +Camera.prototype.getProjection = function() { + return this.projection; +} + +Camera.prototype.getView = function() { + return this.view; +} + +Camera.prototype.getViewProj = function() { + + var glmPers = glm.perspective(glm.radians(this.fovy), this.aspectRatio, this.nearClip, this.farClip); + var glmView = glm.lookAt(this.eye,this.ref,this.up); + + return glmPers['*'](glmView); +} + + +Camera.prototype.updateAttributes = function() { + + this.look = glm.normalize(this.ref['-'](this.eye)); + this.right = glm.normalize(glm.cross(this.look,this.world_up)); + this.up = glm.cross(this.right, this.look); +} + +Camera.prototype.rotateAboutUp = function(upRot) { + + var rotation = glm.rotate(glm.mat4(1.0), glm.radians(-upRot), this.up); + this.eye = glm.vec3(rotation.mul(glm.vec4(this.eye, 1.0))); + this.totalY += upRot; + this.updateAttributes(); +} + +Camera.prototype.rotateAboutRight = function(rightRot) { + + if (rightRot > 100) + return; + + if (this.totalX+rightRot <= 2 || this.totalX+rightRot >= 178) { + return; + } + + var rotation = glm.rotate(glm.mat4(1.0), glm.radians(-rightRot), this.right); + this.eye = glm.vec3(rotation.mul(glm.vec4(this.eye, 1.0))); + this.totalX += rightRot; + this.updateAttributes(); +} + +Camera.prototype.translateAlongLook = function(trans) { + + var translation = this.eye.mul(trans); + this.eye = this.eye['+'](translation); +} + +Camera.prototype.translateAlongRight = function(trans) { + + var translation = this.right.mul(trans); + this.eye = this.eye['+'](translation); + this.ref = this.ref['+'](translation); +} + +Camera.prototype.translateAlongUp = function(trans) { + + var translation = this.up.mul(trans); + this.eye = this.eye['+'](translation); + this.ref = this.ref['+'](translation); + +} \ No newline at end of file diff --git a/src/character.js b/src/character.js new file mode 100644 index 00000000..7f15981a --- /dev/null +++ b/src/character.js @@ -0,0 +1,682 @@ +var Sphere = require('primitive-sphere'); +var Cube = require('primitive-cube'); +var Torus = require('primitive-torus'); + +Character.prototype.A = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [0,1,1,1,0]; + grid[1] = [1,0,0,0,1]; + grid[2] = [1,1,1,1,1]; + grid[3] = [1,0,0,0,1]; + grid[4] = [1,0,0,0,1]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.B = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [1,1,1,1,0]; + grid[1] = [1,0,0,0,1]; + grid[2] = [1,1,1,1,0]; + grid[3] = [1,0,0,0,1]; + grid[4] = [1,1,1,1,0]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.C = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [0,1,1,1,0]; + grid[1] = [1,0,0,0,1]; + grid[2] = [1,0,0,0,0]; + grid[3] = [1,0,0,0,1]; + grid[4] = [0,1,1,1,0]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + + +Character.prototype.D = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [1,1,1,1,0]; + grid[1] = [1,0,0,0,1]; + grid[2] = [1,0,0,0,1]; + grid[3] = [1,0,0,0,1]; + grid[4] = [1,1,1,1,0]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.E = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [1,1,1,1,1]; + grid[1] = [1,0,0,0,0]; + grid[2] = [1,1,1,1,0]; + grid[3] = [1,0,0,0,0]; + grid[4] = [1,1,1,1,1]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.F = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [1,1,1,1,1]; + grid[1] = [1,0,0,0,0]; + grid[2] = [1,1,1,1,0]; + grid[3] = [1,0,0,0,0]; + grid[4] = [1,0,0,0,0]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.G = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [0,1,1,1,0]; + grid[1] = [1,0,0,0,0]; + grid[2] = [1,0,1,1,1]; + grid[3] = [1,0,0,0,1]; + grid[4] = [0,1,1,1,0]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.H = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [1,0,0,0,1]; + grid[1] = [1,0,0,0,1]; + grid[2] = [1,1,1,1,1]; + grid[3] = [1,0,0,0,1]; + grid[4] = [1,0,0,0,1]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.I = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [1,1,1,1,1]; + grid[1] = [0,0,1,0,0]; + grid[2] = [0,0,1,0,0]; + grid[3] = [0,0,1,0,0]; + grid[4] = [1,1,1,1,1]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.J = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [0,0,0,1,1]; + grid[1] = [0,0,0,0,1]; + grid[2] = [1,0,0,0,1]; + grid[3] = [1,0,0,0,1]; + grid[4] = [0,1,1,1,0]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.K = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [1,0,0,0,1]; + grid[1] = [1,0,0,1,0]; + grid[2] = [1,1,1,0,0]; + grid[3] = [1,0,0,1,0]; + grid[4] = [1,0,0,0,1]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.L = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [1,0,0,0,0]; + grid[1] = [1,0,0,0,0]; + grid[2] = [1,0,0,0,0]; + grid[3] = [1,0,0,0,0]; + grid[4] = [1,1,1,1,1]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.M = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [1,0,0,0,1]; + grid[1] = [1,1,0,1,1]; + grid[2] = [1,0,1,0,1]; + grid[3] = [1,0,0,0,1]; + grid[4] = [1,0,0,0,1]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.N = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [1,0,0,0,1]; + grid[1] = [1,1,0,0,1]; + grid[2] = [1,0,1,0,1]; + grid[3] = [1,0,0,1,1]; + grid[4] = [1,0,0,0,1]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.O = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [0,1,1,1,0]; + grid[1] = [1,0,0,0,1]; + grid[2] = [1,0,0,0,1]; + grid[3] = [1,0,0,0,1]; + grid[4] = [0,1,1,1,0]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.P = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [1,1,1,1,0]; + grid[1] = [1,0,0,0,1]; + grid[2] = [1,1,1,1,0]; + grid[3] = [1,0,0,0,0]; + grid[4] = [1,0,0,0,0]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.Q = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [0,1,1,1,0]; + grid[1] = [1,0,0,0,1]; + grid[2] = [1,0,0,0,1]; + grid[3] = [1,0,0,1,0]; + grid[4] = [0,1,1,0,1]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.R = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [1,1,1,1,0]; + grid[1] = [1,0,0,0,1]; + grid[2] = [1,1,1,1,0]; + grid[3] = [1,0,0,0,1]; + grid[4] = [1,0,0,0,1]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.S = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [0,1,1,1,1]; + grid[1] = [1,0,0,0,0]; + grid[2] = [0,1,1,1,0]; + grid[3] = [0,0,0,0,1]; + grid[4] = [1,1,1,1,0]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.T = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [1,1,1,1,1]; + grid[1] = [0,0,1,0,0]; + grid[2] = [0,0,1,0,0]; + grid[3] = [0,0,1,0,0]; + grid[4] = [0,0,1,0,0]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.U = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [1,0,0,0,1]; + grid[1] = [1,0,0,0,1]; + grid[2] = [1,0,0,0,1]; + grid[3] = [1,0,0,0,1]; + grid[4] = [0,1,1,1,0]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.V = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [1,0,0,0,1]; + grid[1] = [1,0,0,0,1]; + grid[2] = [1,0,0,0,1]; + grid[3] = [0,1,0,1,0]; + grid[4] = [0,0,1,0,0]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.W = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [1,0,0,0,1]; + grid[1] = [1,0,0,0,1]; + grid[2] = [1,0,1,0,1]; + grid[3] = [1,1,0,1,1]; + grid[4] = [1,0,0,0,1]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.X = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [1,0,0,0,1]; + grid[1] = [0,1,0,1,0]; + grid[2] = [0,0,1,0,0]; + grid[3] = [0,1,0,1,0]; + grid[4] = [1,0,0,0,1]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.Y = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [1,0,0,0,1]; + grid[1] = [0,1,0,1,0]; + grid[2] = [0,0,1,0,0]; + grid[3] = [0,0,1,0,0]; + grid[4] = [0,0,1,0,0]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.Z = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [1,1,1,1,1]; + grid[1] = [0,0,0,1,0]; + grid[2] = [0,0,1,0,0]; + grid[3] = [0,1,0,0,0]; + grid[4] = [1,1,1,1,1]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.zero = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [0,1,1,1,0]; + grid[1] = [1,0,0,1,1]; + grid[2] = [1,0,1,0,1]; + grid[3] = [1,1,0,0,1]; + grid[4] = [0,1,1,1,0]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.one = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [0,0,1,0,0]; + grid[1] = [0,1,1,0,0]; + grid[2] = [0,0,1,0,0]; + grid[3] = [0,0,1,0,0]; + grid[4] = [0,1,1,1,0]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.two = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [1,1,1,1,0]; + grid[1] = [0,0,0,0,1]; + grid[2] = [0,1,1,1,0]; + grid[3] = [1,0,0,0,0]; + grid[4] = [1,1,1,1,1]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.three = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [1,1,1,1,0]; + grid[1] = [0,0,0,0,1]; + grid[2] = [0,0,1,1,0]; + grid[3] = [0,0,0,0,1]; + grid[4] = [1,1,1,1,0]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.four = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [0,0,0,1,0]; + grid[1] = [0,0,1,1,0]; + grid[2] = [0,1,0,1,0]; + grid[3] = [1,1,1,1,1]; + grid[4] = [0,0,0,1,0]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.five = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [1,1,1,1,1]; + grid[1] = [1,0,0,0,0]; + grid[2] = [1,1,1,1,0]; + grid[3] = [0,0,0,0,1]; + grid[4] = [1,1,1,1,0]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.six = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [0,1,1,1,1]; + grid[1] = [1,0,0,0,0]; + grid[2] = [1,1,1,1,0]; + grid[3] = [1,0,0,0,1]; + grid[4] = [0,1,1,1,0]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.seven = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [1,1,1,1,1]; + grid[1] = [0,0,0,0,1]; + grid[2] = [0,0,0,1,0]; + grid[3] = [0,0,1,0,0]; + grid[4] = [0,1,0,0,0]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.eight = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [0,1,1,1,0]; + grid[1] = [1,0,0,0,1]; + grid[2] = [0,1,1,1,0]; + grid[3] = [1,0,0,0,1]; + grid[4] = [0,1,1,1,0]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.nine = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [0,1,1,1,0]; + grid[1] = [1,0,0,0,1]; + grid[2] = [0,1,1,1,1]; + grid[3] = [0,0,0,0,1]; + grid[4] = [1,1,1,1,0]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.apostrophe = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [0,0,1,0,0]; + grid[1] = [0,0,1,0,0]; + grid[2] = [0,1,0,0,0]; + grid[3] = [0,0,0,0,0]; + grid[4] = [0,0,0,0,0]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.comma = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [0,0,0,0,0]; + grid[1] = [0,0,0,0,0]; + grid[2] = [0,0,0,0,0]; + grid[3] = [0,0,1,0,0]; + grid[4] = [0,1,0,0,0]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.period = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [0,0,0,0,0]; + grid[1] = [0,0,0,0,0]; + grid[2] = [0,0,0,0,0]; + grid[3] = [0,0,0,0,0]; + grid[4] = [0,0,1,0,0]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.hyphen = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [0,0,0,0,0]; + grid[1] = [0,0,0,0,0]; + grid[2] = [0,1,1,1,0]; + grid[3] = [0,0,0,0,0]; + grid[4] = [0,0,0,0,0]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.ampersand = function(offset) { + + var grid = this.letterGrid; + grid[0] = [0,1,1,0,0]; + grid[1] = [1,0,0,1,0]; + grid[2] = [0,1,1,0,1]; + grid[3] = [1,0,0,1,0]; + grid[4] = [0,1,1,0,1]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.doubleQuotation = function(offset) { + + var grid = this.letterGrid; + grid[0] = [0,1,0,1,0]; + grid[1] = [0,1,0,1,0]; + grid[2] = [0,1,0,1,0]; + grid[3] = [0,0,0,0,0]; + grid[4] = [0,0,0,0,0]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.leftBracket = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [0,1,1,1,0]; + grid[1] = [0,1,0,0,0]; + grid[2] = [0,1,0,0,0]; + grid[3] = [0,1,0,0,0]; + grid[4] = [0,1,1,1,0]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.rightBracket = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [0,1,1,1,0]; + grid[1] = [0,0,0,1,0]; + grid[2] = [0,0,0,1,0]; + grid[3] = [0,0,0,1,0]; + grid[4] = [0,1,1,1,0]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.leftParenthesis = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [0,0,1,0,0]; + grid[1] = [0,1,0,0,0]; + grid[2] = [0,1,0,0,0]; + grid[3] = [0,1,0,0,0]; + grid[4] = [0,0,1,0,0]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.rightParenthesis = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [0,0,1,0,0]; + grid[1] = [0,0,0,1,0]; + grid[2] = [0,0,0,1,0]; + grid[3] = [0,0,0,1,0]; + grid[4] = [0,0,1,0,0]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.colon = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [0,0,0,0,0]; + grid[1] = [0,0,1,0,0]; + grid[2] = [0,0,0,0,0]; + grid[3] = [0,0,1,0,0]; + grid[4] = [0,0,0,0,0]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.semiColon = function(offset) { + + var grid = this.letterGrid; + + grid[0] = [0,0,0,0,0]; + grid[1] = [0,0,1,0,0]; + grid[2] = [0,0,0,0,0]; + grid[3] = [0,0,1,0,0]; + grid[4] = [0,1,0,0,0]; + + return this.replaceActiveGridPointsWithMesh(offset); +} + +Character.prototype.replaceActiveGridPointsWithMesh = function(offset) { + + var grid = this.letterGrid; + var allVertices = []; + + for(var x = 0; x < grid.length; x++){ + for(var y = 0; y < grid[x].length; y++){ + + var cell = grid[y][x]; + + if (cell) { + + var pos = glm.vec3(x*this.dotSpacing, + (grid[x].length-y)*this.dotSpacing, + 0)['+'](offset); + + var mesh; + + if (this.meshType == 1) { + mesh = Sphere(this.meshSize, {segments: 3}); + } + else if (this.meshType == 2) { + mesh = Cube(this.meshSize,this.meshSize,this.meshSize, 2,2,2); + } + else if (this.meshType == 3) { + mesh = Torus({ + majorRadius: this.meshSize/2, + minorRadius: this.meshSize/4, + majorSegments: 8, + minorSegments: 4 + }); + } + + for (var m = 0; m < mesh.positions.length; m++) { + + var vert = mesh.positions[m]; + allVertices.push(glm.vec4(vert[0]+pos[0],vert[1]+pos[1],vert[2]+pos[2],1.0)); + } + } + } + } + + return allVertices; +} + +export default function Character() { + + this.meshType = 1; + this.meshSize = 0.2; + this.gridWidth = 5.0; + this.dotSpacing = 0.5; + this.letterHeight = this.dotSpacing * this.gridWidth; + this.letterWidth = this.dotSpacing * this.gridWidth; + this.letterGrid = []; +} \ No newline at end of file diff --git a/src/controls.js b/src/controls.js new file mode 100644 index 00000000..9d2a9c78 --- /dev/null +++ b/src/controls.js @@ -0,0 +1,162 @@ +function mouseDown(event, controls){ + controls.drag = 1; + controls.xOffset = event.clientX; + controls.yOffset = event.clientY; + + //debug(event, controls); +} + +function debug(event, controls) { + + var ndcX = (( controls.xOffset - canvas.offsetLeft ) / canvas.clientWidth) * 2 - 1; + var ndcY = (1 - (( controls.yOffset - canvas.offsetTop ) / canvas.clientHeight)) * 2 - 1; + var worldPoint = glm.inverse(controls.camera.getViewProj())['*'](glm.vec4(ndcX,ndcY,1.0,1.0))['*'](controls.camera.farClip-1); + console.log("ndc: [" + ndcX + ", " + ndcY + "]"); + + //worldPoint = worldPoint['/'](worldPoint.w); + console.log("world point :" + worldPoint); + + var dir = controls.camera.eye['-'](glm.vec3(worldPoint.x,worldPoint.y,worldPoint.z)); + dir = glm.normalize(dir); + console.log("Direction: " + dir); + + var point = controls.camera.eye; + + while (Math.abs(point.z) > 2.0 && Math.abs(point.z) < 500.0) { + point = point['-'](dir); + } + + console.log("Point: " + point); + + +// var pixelSpace = controls.camera.getViewProj().mul(worldPoint); +// +// console.log("pixel space :" + pixelSpace); +} + +function mouseUp(event, controls){ + controls.drag = 0; +} + +function mouseMove(event, controls){ + if (controls.drag == 0 ) { + controls.xOffset = event.clientX; + controls.yOffset = event.clientY; + return; + } + + var yRotation = -controls.xOffset + event.clientX; + var xRotation = -controls.yOffset + event.clientY; + + controls.xOffset = event.clientX; + controls.yOffset = event.clientY; + + if (!controls.camera.active) + return; + + controls.camera.rotateAboutUp(yRotation); + controls.camera.rotateAboutRight(xRotation); +} + + +function scroll(event, controls) { + if (!controls.camera.active) + return; + + if ((event.detail || event.wheelDelta) > 0) { + controls.camera.translateAlongLook(0.1); + } else { + controls.camera.translateAlongLook(-0.1); + } + + event.preventDefault(); +} + +function pan(event, controls) { + if (!controls.camera.active) + return; + + console.log("pan"); + event = event || window.event; + + if (event.keyCode == '38') { + //up + controls.camera.translateAlongUp(0.1); + } + else if (event.keyCode == '40') { + // down + controls.camera.translateAlongUp(-0.1); + } + else if (event.keyCode == '37') { + // left + controls.camera.translateAlongRight(-0.1); + } + else if (event.keyCode == '39') { + // right + controls.camera.translateAlongRight(0.1); + } + +} + +function getWorldPoint(canvas, controls) { + + var camera = controls.camera; + + var ndcX = (( controls.xOffset - canvas.offsetLeft ) / canvas.clientWidth) * 2 - 1; + var ndcY = (1 - (( controls.yOffset - canvas.offsetTop ) / canvas.clientHeight)) * 2 - 1; + var worldPoint = glm.inverse(camera.getViewProj())['*'](glm.vec4(ndcX,ndcY,1.0,1.0))['*'](camera.farClip); + + var dir = camera.eye['-'](glm.vec3(worldPoint.x,worldPoint.y,worldPoint.z)); + dir = glm.normalize(dir); + + var point = controls.camera.eye; + + //raymarch to get mouse postion close to particles + //not the best solution, but works for now + while (Math.abs(point.z) > 2.0 && Math.abs(point.z) < 500.0) { + point = point['-'](dir); + } + + return glm.vec4(point.x, point.y, point.z, 1); +} + + +export default function Controls(canvas, cam) { + + var controls = { + drag: 0, + yRotation: 0, + xRotation: 0, + xOffset: 0, + yOffset: 0, + totalX: 90, + camera: cam, + getWorldPoint: function() { + return getWorldPoint(canvas, controls); + } + }; + + + + canvas.setAttribute("tabindex", 0); + canvas.addEventListener('DOMMouseScroll', function(e) { + scroll(e, controls); + } , false); + canvas.addEventListener('mousewheel', function(e) { + scroll(e, controls); + }, false); + canvas.addEventListener('mousedown', function(e) { + mouseDown(e, controls); + }, false); + canvas.addEventListener('mouseup', function(e) { + mouseUp(e, controls); + }, false); + canvas.addEventListener('mousemove', function(e) { + mouseMove(e, controls); + }, false); +// canvas.addEventListener('keydown', function(e) { +// pan(e, controls); +// }); + + return controls; +} \ No newline at end of file diff --git a/src/framework.js b/src/framework.js new file mode 100644 index 00000000..b8e07c81 --- /dev/null +++ b/src/framework.js @@ -0,0 +1,68 @@ +//require('file-loader?name=[name].[ext]!../index.html'); +import Stats from 'stats-js' +import DAT from 'dat-gui' +import WebGL2 from './webgl.js' +import Camera from './camera' +import Controls from './controls' +import Lyric from './lyric' +import Character from './character' + + +function init(callback, update) { + var stats = new Stats(); + stats.setMode(0); + stats.domElement.style.position = 'absolute'; + stats.domElement.style.left = '0px'; + stats.domElement.style.top = '0px'; + //document.body.appendChild(stats.domElement); + + var gui = new DAT.GUI(); + + var framework = { + gui: gui, + // stats: stats + }; + + window.addEventListener('load', function() { + + framework.webgl = new WebGL2(); + framework.canvas = framework.webgl.canvas; + + window.addEventListener('resize', function() { + resize(framework.webgl.gl.canvas); + }, false); + + framework.camera = new Camera(framework.canvas); + framework.controls = new Controls(framework.canvas, framework.camera); + framework.lyric = new Lyric(); + + // begin the animation loop + (function tick() { + stats.begin(); + update(framework); // perform any requested updates + stats.end(); + requestAnimationFrame(tick); // register to call this again when the browser renders a new frame + })(); + + // we will pass the scene, gui, renderer, camera, etc... to the callback function + return callback(framework); + }); +} + + +function resize(canvas) { + var cssToActualPixels = window.devicePixelRatio || 1; + + var screenWidth = Math.floor(canvas.clientWidth * cssToActualPixels); + var screenHeight = Math.floor(canvas.clientHeight * cssToActualPixels); + + if (canvas.width !== screenWidth || canvas.height !== screenHeight) + { + canvas.width = screenWidth; + canvas.height = screenHeight; + } +} + +export default { + init: init +} \ No newline at end of file diff --git a/src/lyric.js b/src/lyric.js new file mode 100644 index 00000000..96936a78 --- /dev/null +++ b/src/lyric.js @@ -0,0 +1,272 @@ +import Character from './character' + +//TODO: Rewrite alignment algorithm +Lyric.prototype.getLyricLineMesh = function(lyric, camera) { + + lyric = lyric.toUpperCase(); + + var re = /\S+/g; + var strArray = lyric.match(re) || []; + + var lyrics2d = []; + var currentLine = 0; + + //TODO: Get rid of magic numbers, should be based on camera's intial position + //y min is positive because top of screen is positive and bottom is negative + var min = glm.vec3(-15,10,0); + var max = glm.vec3(13,-5,0); + var offset = glm.vec3(min[0],0,0); + var lyricMesh = []; + var whitespace = this.characters.letterWidth + this.letterSpacing; + + for (var i = 0; i < strArray.length; i++) { + + var word = strArray[i]; + var len = this.getWordLength(word); + //if word doens't fit in same line move it to the next line + if (len + whitespace + offset[0] >= max[0]) { + + //if word is too long and no words are present in current line + //add it to current line anyways + if ("undefined" === typeof lyrics2d[currentLine]) { + lyrics2d[currentLine] = [word]; + offset[0] = min[0]; + offset[1] -= this.characters.letterHeight + this.lineSpacing; + currentLine++; + continue; + } + + offset[0] = min[0]; + offset[1] -= this.characters.letterHeight + this.lineSpacing; + currentLine++; + } + + if ("undefined" === typeof lyrics2d[currentLine]) + lyrics2d[currentLine] = []; + + + lyrics2d[currentLine].push(word); + offset[0] += len; + //Add whitespace after word + if (i != strArray.length-1) + offset[0] += whitespace; + } + + var lineHeight = lyrics2d.length * (this.characters.letterHeight + this.lineSpacing); + var emptyHeightSpace = (min.y + Math.abs(max.y)) - lineHeight; + var offsetFromTop = Math.min(min.y-emptyHeightSpace/2.0, min.y); + + offset = glm.vec3(0,offsetFromTop,0); + + for (var l = 0; l < lyrics2d.length; l++) { + + var line = lyrics2d[l]; + var lineWidth = 0; + + for (var w = 0; w < line.length; w++) { + var word = line[w]; + lineWidth += this.getWordLength(word); + //for whitespace + if (w != line.length-1) + lineWidth += whitespace; + } + + var emptyWidthSpace = (Math.abs(min.x) + max.x) - lineWidth; + //console.log(emptyWidthSpace); + var offsetFromLeft = Math.max(min.x+emptyWidthSpace/2.0, min.x); + //console.log(offsetFromLeft); + offset[0] = offsetFromLeft; + + for (var w = 0; w < line.length; w++) { + var word = line[w]; + lyricMesh = lyricMesh.concat(this.getWordMeshArray(word, offset)); + //Add whitespace after word + if (w != line.length-1) + offset[0] += whitespace; + } + offset[1] -= this.characters.letterHeight + this.lineSpacing; + } + + return lyricMesh; +} + + + +Lyric.prototype.getWordMeshArray = function(word, offset) { + + var lyricMesh = []; + + for (var l = 0; l < word.length; l++) { + + switch(word.charAt(l)) { + case 'A': + lyricMesh = lyricMesh.concat(this.characters.A(offset)); + break; + case 'B': + lyricMesh = lyricMesh.concat(this.characters.B(offset)); + break; + case 'C': + lyricMesh = lyricMesh.concat(this.characters.C(offset)); + break; + case 'D': + lyricMesh = lyricMesh.concat(this.characters.D(offset)); + break; + case 'E': + lyricMesh = lyricMesh.concat(this.characters.E(offset)); + break; + case 'F': + lyricMesh = lyricMesh.concat(this.characters.F(offset)); + break; + case 'G': + lyricMesh = lyricMesh.concat(this.characters.G(offset)); + break; + case 'H': + lyricMesh = lyricMesh.concat(this.characters.H(offset)); + break; + case 'I': + lyricMesh = lyricMesh.concat(this.characters.I(offset)); + break; + case 'J': + lyricMesh = lyricMesh.concat(this.characters.J(offset)); + break; + case 'K': + lyricMesh = lyricMesh.concat(this.characters.K(offset)); + break; + case 'L': + lyricMesh = lyricMesh.concat(this.characters.L(offset)); + break; + case 'M': + lyricMesh = lyricMesh.concat(this.characters.M(offset)); + break; + case 'N': + lyricMesh = lyricMesh.concat(this.characters.N(offset)); + break; + case 'O': + lyricMesh = lyricMesh.concat(this.characters.O(offset)); + break; + case 'P': + lyricMesh = lyricMesh.concat(this.characters.P(offset)); + break; + case 'Q': + lyricMesh = lyricMesh.concat(this.characters.Q(offset)); + break; + case 'R': + lyricMesh = lyricMesh.concat(this.characters.R(offset)); + break; + case 'S': + lyricMesh = lyricMesh.concat(this.characters.S(offset)); + break; + case 'T': + lyricMesh = lyricMesh.concat(this.characters.T(offset)); + break; + case 'U': + lyricMesh = lyricMesh.concat(this.characters.U(offset)); + break; + case 'V': + lyricMesh = lyricMesh.concat(this.characters.V(offset)); + break; + case 'W': + lyricMesh = lyricMesh.concat(this.characters.W(offset)); + break; + case 'X': + lyricMesh = lyricMesh.concat(this.characters.X(offset)); + break; + case 'Y': + lyricMesh = lyricMesh.concat(this.characters.Y(offset)); + break; + case 'Z': + lyricMesh = lyricMesh.concat(this.characters.Z(offset)); + break; + case '0': + lyricMesh = lyricMesh.concat(this.characters.zero(offset)); + break; + case '1': + lyricMesh = lyricMesh.concat(this.characters.one(offset)); + break; + case '2': + lyricMesh = lyricMesh.concat(this.characters.two(offset)); + break; + case '3': + lyricMesh = lyricMesh.concat(this.characters.three(offset)); + break; + case '4': + lyricMesh = lyricMesh.concat(this.characters.four(offset)); + break; + case '5': + lyricMesh = lyricMesh.concat(this.characters.five(offset)); + break; + case '6': + lyricMesh = lyricMesh.concat(this.characters.six(offset)); + break; + case '7': + lyricMesh = lyricMesh.concat(this.characters.seven(offset)); + break; + case '8': + lyricMesh = lyricMesh.concat(this.characters.eight(offset)); + break; + case '9': + lyricMesh = lyricMesh.concat(this.characters.nine(offset)); + break; + case '\'': + lyricMesh = lyricMesh.concat(this.characters.apostrophe(offset)); + break; + case '\’': + lyricMesh = lyricMesh.concat(this.characters.apostrophe(offset)); + break; + case ',': + lyricMesh = lyricMesh.concat(this.characters.comma(offset)); + break; + case '.': + lyricMesh = lyricMesh.concat(this.characters.period(offset)); + break; + case '-': + lyricMesh = lyricMesh.concat(this.characters.hyphen(offset)); + break; + case '&': + lyricMesh = lyricMesh.concat(this.characters.ampersand(offset)); + break; + case '\"': + lyricMesh = lyricMesh.concat(this.characters.doubleQuotation(offset)); + break; + case '\[': + lyricMesh = lyricMesh.concat(this.characters.leftBracket(offset)); + break; + case '\]': + lyricMesh = lyricMesh.concat(this.characters.rightBracket(offset)); + break; + case '\(': + lyricMesh = lyricMesh.concat(this.characters.leftParenthesis(offset)); + break; + case '\)': + lyricMesh = lyricMesh.concat(this.characters.rightParenthesis(offset)); + break; + case ':': + lyricMesh = lyricMesh.concat(this.characters.colon(offset)); + break; + case ';': + lyricMesh = lyricMesh.concat(this.characters.semiColon(offset)); + break; + default: + break; + } + + offset[0] += this.characters.letterWidth + this.letterSpacing; + } + + return lyricMesh; +} + + +Lyric.prototype.getWordLength = function (word) { + + return (word.length-1) * (this.characters.letterWidth + this.letterSpacing); +} + + +export default function Lyric() { + + this.letterSpacing = 0.3; + this.lineSpacing = 0.5; + + this.characters = new Character(); +} \ No newline at end of file diff --git a/src/main.js b/src/main.js new file mode 100644 index 00000000..b29a18a1 --- /dev/null +++ b/src/main.js @@ -0,0 +1,630 @@ +import Framework from './framework' +var ObjMtlLoader = require("obj-mtl-loader"); +var glm = require('glm-js'); +import Camera from './camera' +import Controls from './controls' +import $ from "jquery"; + +var uniform = { + TIME: 0, + RESOLUTION: 1, + MOUSE: 2, + MODEL: 3, + VIEW: 4, + PROJECTION: 5, + PROJECTIONVIEW: 6, + COLOR1: 7, + COLOR2: 8, + MOUSECLICKED: 9, + PARTICLESPEED: 10, + PARTICLENOISE: 11, + PARTICLESIZE: 12, + FORCERADIUS: 13 +}; + +var varying = { + POSTION: 0, + VELOCITY: 1, + ACCELERATION: 2, + MASS: 3, + OBJPOS: 4 +} + +var program = { + PARTICLES: 0, + DRAW: 1 +} + +var programs = []; + +var startTime; +var num_particles = 50000; +var mouseX = 0; +var mouseY = 0; + +var obj_lyrics_dict = []; +var obj_lyrics_time = []; +var obj_lyrics_string = []; +var obj_change = false; + +function glmMatToArray(mat) +{ + return [ + mat[0][0], mat[0][1], mat[0][2], mat[0][3], + mat[1][0], mat[1][1], mat[1][2], mat[1][3], + mat[2][0], mat[2][1], mat[2][2], mat[2][3], + mat[3][0], mat[3][1], mat[3][2], mat[3][3] + ]; +} + +var config = { + pause : false, + mouse : false, + force : 1, + force_radius : 5, + grid_width : 20, + marker_density : 5.0, + agent_density : 0.5, + agent_speed : 1, + object: 1, + animated_object: 1, + camera_move: false, + restart_music: false, + mesh_shape: 1, + mesh_color1: "#00f0ff", + mesh_color2: "#00f0ff", + particle_speed: 1.0, + particle_noise: 0.1, + particle_size: 1.5, + particle_mass: 1.0, + particle_mass_variance: 0.0, + chooseLyricFile : function() { + document.getElementById("lyricFile").click(); + + }, + chooseSongFile : function() { + document.getElementById("songFile").click(); + + }, + playSong : false, + loadSong : function() { + uploadFiles(); + config.object = 0; + }, + sampleSong : function() { + + var client = new XMLHttpRequest(); + client.open('GET', 'sample/Insane.lrc'); + client.onreadystatechange = function() { + + if (client.readyState == 4 && client.status == 200) + { + if (client.responseText) + { + var file = client.responseText; + parseLyricFile(file); + //console.log(results); + } + } + }; + + client.send(); + + if ("undefined" === typeof audio) { + audio = new Audio('sample/Insane.mp3'); + } else { + audio.src = 'sample/Insane.mp3'; + } + //initPlayer(); + config.object = 0; + audio.play(); + } +} + + +function uploadFiles() { + var fileInput = $('#lyricFile').get(0); + var musicInput = $('#songFile').get(0); + + if (fileInput.files.length && musicInput.files.length) { + + var musicFile = musicInput.files[0]; + if ("undefined" === typeof audio) { + audio = document.getElementById('song'); + } else { + audio.src = URL.createObjectURL(musicFile); + } + //initPlayer(); + + var reader = new FileReader(); + var lyricFile = fileInput.files[0]; + console.log(lyricFile); + $(reader).on('load', processFile); + reader.readAsText(lyricFile); + audio.play(); + } else { + alert('Please upload a lyric file & a music file.') + } +} + +function processFile(e) { + var file = e.target.result; + + if (file && file.length) { + parseLyricFile(file); + } +} + + +function parseLyricFile(file) { + + var results = file.split("\n"); + obj_lyrics_time = []; + obj_lyrics_string = []; + + for (var i = 0; i < results.length; i++) { + + var re = /\[(\d\d\:\d\d\.\d\d)\](.*)/; + var lyricLine = results[i]; + var lyricArray = lyricLine.match(re); + + if (lyricArray == null){ + continue; + } + + var reTime = /(\d\d)\:(\d\d\.\d\d)/; + var time = lyricArray[1].match(reTime); + var timeInSeconds = parseFloat(time[1]) * 60 + parseFloat(time[2]); + var lyric = lyricArray[2]; + + if (lyric == "") + continue; + + obj_lyrics_dict[timeInSeconds] = lyric; + + obj_lyrics_time.push(timeInSeconds); + obj_lyrics_string.push(lyric); + + } +} + + +var audio, freqData; + +function initPlayer() { + var ctx = new AudioContext(); + var audioSource = ctx.createBufferSource(audio); + var analyser = ctx.createAnalyser(); + + audioSource.connect(analyser); + audioSource.connect(ctx.destination); + + freqData = new Uint8Array(analyser.frequencyBinCount); + analyser.getByteFrequencyData(freqData); + + for (var i = 0; i < analyser.frequencyBinCount; i++) { + var value = freqData[i]; + } + + function renderFrame() { + requestAnimationFrame(renderFrame); + analyser.getByteFrequencyData(freqData); + } + renderFrame(); +} + +function onLoad(framework) { + + setUpGUI(framework); + setUpWebGL(framework); +} + + +function setUpGUI(framework) { + var gui = framework.gui; + + gui.add(config, 'pause').name("Pause Scene").onChange(function(value) { + + if (value) { + config.pause = value; + } else { + config.pause = value; + } + }); + + gui.add(config, 'sampleSong'). name('Play Sample Song'); + gui.add(config, 'chooseLyricFile'). name('Choose Lyric file'); + gui.add(config, 'chooseSongFile'). name('Choose Song file'); + gui.add(config, 'loadSong'). name('Load New Song'); + + gui.add(config, 'playSong').name("Play/Pause Song").onChange(function(value) { + + if (value) { + if ("undefined" === typeof audio) { + uploadFiles(); + config.object = 0; + return; + } + changeOBJ(framework, 1); + audio.play(); + frame = 0; + } else { + if ("undefined" === typeof audio) { + return; + } + audio.pause(); + } + }); + + + var f1 = gui.addFolder('Mouse Controls'); + + f1.add(config, 'mouse').name("Activate mouse").onChange(function(value) { + + framework.camera.active = false; + if (value) { + config.mouse = value; + } else { + config.mouse = value; + } + }); + + f1.add(config, 'force', {Attract: 1, Repel: 2} ).name("Force").onChange(function() {}); + + f1.add(config, 'force_radius', 0.0, 30.0).name("Force Radius").onChange( function() {}); + + f1.add(config, 'camera_move').name("Move Camera").onChange(function(value) { + + config.mouse = false; + if (value) { + framework.camera.active = value; + } else { + //framework.camera.reset(); + } + }); + + var f2 = gui.addFolder('Particle Controls'); + + f2.add(config, 'mesh_shape', { Sphere: 1, Cube: 2, Torus: 3 } ).name("Mesh Shape") + .onChange(function(meshIndex) { + + framework.lyric.characters.meshType = meshIndex; + obj_change = true; + changeOBJ(framework, config.object); + + }); + + f2.addColor(config, 'mesh_color1').name("Color 1").onChange( function(colorValue) {}); + + f2.addColor(config, 'mesh_color2').name("Color 2").onChange( function(colorValue) {}); + + f2.add(config, 'particle_speed', 1.0, 5.0).name("Speed").onChange( function(speed) {}); + + f2.add(config, 'particle_size', 1.0, 5.0).name("Size").onChange( function(size) {}); + + f2.add(config, 'particle_mass', 1.0, 20.0).name("Mass").onChange( function(mass) + { + changeMASS(framework, config.object); + }); + + f2.add(config, 'particle_mass_variance', 0.0, 20.0).name("Mass Variance").onChange( function(mass) + { + changeMASS(framework, config.object); + }); + + f2.add(config, 'particle_noise', 0.0, 5.0).name("Noise").onChange( function(noise) {}); +} + +function setUpWebGL(framework) { + + var canvas = framework.canvas; + var gl = framework.webgl.gl; + + startTime = Date.now(); + + programs = framework.webgl.createPrograms(["particles", "draw"]); + + //provide webgl with output attributes for capture into buffers + //GL_SEPARATE_ATTRIBS: Write attributes to multiple buffer objects + gl.transformFeedbackVaryings(programs[program.PARTICLES], ["outPos", "outVel", "outAcc","outMass"], gl.SEPARATE_ATTRIBS); + gl.linkProgram(programs[program.PARTICLES]); + gl.useProgram(programs[program.PARTICLES]); + + //assign attribute locations to given program to access as + framework.webgl.setAttributeLocations(programs[program.PARTICLES],["inPos","inVel","inAcc","inMass","inObjPos"]); + + var particle_positions = []; + + var total = num_particles * 4; + + var angleOffset = 2.0 * Math.PI / num_particles; + var sqrt_num_particles = Math.sqrt(num_particles); + + for (var x = -0.5; x < 0.5; x) { + var temp_x = (1.0/sqrt_num_particles); + for (var y = -0.5; y < 0.5; y) { + var temp_y = (1.0/sqrt_num_particles); + + particle_positions.push(x); + particle_positions.push(y); + particle_positions.push(0); + particle_positions.push(1); + y+= temp_y; + if (particle_positions.length == total) + break; + } + if (particle_positions.length == total) + break; + x+= temp_x; + } + + var particle_velocites = []; + + for (var x = 0; x < sqrt_num_particles; x++) { + for (var y = 0; y < sqrt_num_particles; y++) { + + particle_velocites.push((Math.random()*2.0-1.0)/10.0); + particle_velocites.push((Math.random()*2.0-1.0)/10.0); + particle_velocites.push((Math.random()*2.0-1.0)/10.0); + particle_velocites.push(1.0); + if (particle_velocites.length == total) + break; + } + if (particle_velocites.length == total) + break; + } + + var obj_positions = []; + + + var title = "Particle Lyric"; + obj_lyrics_string[0] = title; + var verts = framework.lyric.getLyricLineMesh(title, framework.camera); + + for (var i = 0; i < num_particles; i++) { + + var pos = verts[i%verts.length]; + obj_positions.push(pos[0]); + obj_positions.push(pos[1]); + obj_positions.push(pos[2]); + obj_positions.push(1.0); + } + + var mass_positions = []; + + for (var i = 0; i < num_particles; i++) { + + mass_positions.push(1.0); + } + + framework.webgl.setAttributeBufferAtIndex(programs[program.PARTICLES],varying.POSTION, particle_positions); + framework.webgl.setAttributeBufferAtIndex(programs[program.PARTICLES],varying.VELOCITY, particle_velocites); + framework.webgl.setAttributeBufferAtIndex(programs[program.PARTICLES],varying.ACCELERATION, particle_velocites); + framework.webgl.setAttributeBufferAtIndex(programs[program.PARTICLES],varying.MASS, mass_positions); + framework.webgl.setAttributeBufferAtIndex(programs[program.PARTICLES],varying.OBJPOS, obj_positions); + + framework.webgl.setAttributeBufferAtIndex(programs[program.DRAW],varying.POSTION, new Float32Array(4*num_particles)); + framework.webgl.setAttributeBufferAtIndex(programs[program.DRAW],varying.VELOCITY, new Float32Array(4*num_particles)); + framework.webgl.setAttributeBufferAtIndex(programs[program.DRAW],varying.ACCELERATION, new Float32Array(4*num_particles)); + framework.webgl.setAttributeBufferAtIndex(programs[program.DRAW],varying.MASS, new Float32Array(num_particles)); + + // framework.webgl.setAttributeBuffers(programs[program.DRAW],["inPos","inVel"],new Float32Array(4*num_particles)); + + + var programParticlesUniforms = [ + "u_time","u_mouse","u_mouseClicked", + "u_particleSpeed","u_particleNoise", + "u_forceRadius" + ]; + + var programParticlesIndices = [uniform.TIME,uniform.MOUSE,uniform.MOUSECLICKED, + uniform.PARTICLESPEED,uniform.PARTICLENOISE,uniform.FORCERADIUS]; + + framework.webgl.setUniformLocationsAtIndices(programs[program.PARTICLES], + programParticlesUniforms, + programParticlesIndices); + + var programDrawUniforms = [ + "u_model", + "u_projectionView","u_color1","u_color2", + "u_particleSize" + ]; + + var programDrawIndices = [ + uniform.MODEL, + uniform.PROJECTIONVIEW,uniform.COLOR1,uniform.COLOR2, + uniform.PARTICLESIZE + ]; + + + framework.webgl.setUniformLocationsAtIndices(programs[program.DRAW], + programDrawUniforms, + programDrawIndices); + + + var transformFeedback = gl.createTransformFeedback(); + gl.bindTransformFeedback(gl.TRANSFORM_FEEDBACK, transformFeedback); + + + window.dispatchEvent(new Event('resize')); + +} + +function changeMASS(framework, index) { + + config.object = index; + + var mass_positions = []; + + for (var i = 0; i < num_particles; i++) { + mass_positions.push(config.particle_mass + (Math.random()*config.particle_mass_variance) ); + } + + var gl = framework.webgl.gl; + var data = mass_positions; + + gl.bindBuffer(gl.ARRAY_BUFFER, programs[program.PARTICLES].attributeBuffers[varying.MASS]); + gl.bufferSubData(gl.ARRAY_BUFFER, 0, new Float32Array(data), 0, 0); +} + + +function changeOBJ(framework, index) { + + config.object = index; + + var obj_positions = []; + + var verts = framework.lyric.getLyricLineMesh(obj_lyrics_string[config.object-1]); + + for (var i = 0; i < num_particles; i++) { + + var pos = verts[i%verts.length]; + obj_positions.push(pos[0]); + obj_positions.push(pos[1]); + obj_positions.push(pos[2]); + obj_positions.push(1.0); + } + + var gl = framework.webgl.gl; + var offset = (num_particles*4)*0; + var data = obj_positions.slice(offset, offset+num_particles*4); + + gl.bindBuffer(gl.ARRAY_BUFFER, programs[program.PARTICLES].attributeBuffers[varying.OBJPOS]); + gl.bufferSubData(gl.ARRAY_BUFFER, 0, new Float32Array(data), 0, 0); +} + + +function updateLyricOnScreen(framework) { + + if ("undefined" === typeof audio || audio.paused) { + return; + } + + if (audio.currentTime == 0) + return; + + var camera = framework.camera; + + var rotation = 0.1; + + if ( Math.floor(audio.currentTime/5)%2 ==0) { + camera.rotateAboutUp(rotation); + camera.rotateAboutRight(rotation/2); + } + else { + camera.rotateAboutUp(-rotation); + camera.rotateAboutRight(-rotation/2); + } + + for (var i = obj_lyrics_time.length; i >= 0; i--) { + + var time = obj_lyrics_time[i]; + if (audio.currentTime > time) { + if (config.object != i+1) { + changeOBJ(framework, i+1); + frame = 0; + } + return; + } + + } +} + +var frame = 0; + +function onUpdate(framework) { + if (config.pause) + return; + frame++; + if (!programs[program.PARTICLES] || !programs[program.DRAW]) { + return; + } + var time = Date.now() - startTime; + + var canvas = framework.canvas; + var camera = framework.camera; + var controls = framework.controls; + + updateLyricOnScreen(framework); + + if (obj_change) { + obj_change = false; + changeOBJ(framework, config.object); + } + + var worldPoint = controls.getWorldPoint(); + + var mouse_type = -1; + + if (config.mouse && controls.drag == 1) { + mouse_type = config.force; + } + + var gl = framework.webgl.gl; + gl.clearColor(0, 0, 0, 1); + gl.clear(gl.COLOR_BUFFER_BIT); + gl.viewport(0, 0, gl.canvas.width, gl.canvas.height); + + gl.useProgram(programs[program.PARTICLES]); + + framework.webgl.setVertexAttributePointerAtIndices( + programs[program.PARTICLES], + [varying.POSTION,varying.VELOCITY, varying.ACCELERATION, varying.MASS, varying.OBJPOS], + [4,4,4,1,4] + ); + + //bind the transform feedback buffers + framework.webgl.bindBufferBase( + programs[program.DRAW], + [varying.POSTION,varying.VELOCITY, varying.ACCELERATION, varying.MASS] + ); + + gl.uniform1f(programs[program.PARTICLES].uniformLocations[uniform.TIME], frame); + gl.uniform4f(programs[program.PARTICLES].uniformLocations[uniform.MOUSE], worldPoint.x,worldPoint.y,worldPoint.z,worldPoint.w); + gl.uniform1f(programs[program.PARTICLES].uniformLocations[uniform.MOUSECLICKED], mouse_type); + gl.uniform1f(programs[program.PARTICLES].uniformLocations[uniform.PARTICLESPEED], config.particle_speed); + gl.uniform1f(programs[program.PARTICLES].uniformLocations[uniform.PARTICLENOISE], config.particle_noise); + gl.uniform1f(programs[program.PARTICLES].uniformLocations[uniform.FORCERADIUS], config.force_radius); + + //no drawing + gl.enable(gl.RASTERIZER_DISCARD); + gl.beginTransformFeedback(gl.POINTS); + gl.drawArrays(gl.POINTS, 0, num_particles); + gl.endTransformFeedback(); + + + gl.disable(gl.RASTERIZER_DISCARD); + //clear transform feedback buffer binding + framework.webgl.clearBufferBase(programs[program.DRAW], + [varying.POSTION,varying.VELOCITY, varying.ACCELERATION, varying.MASS]) + + //draw the points from draw program + gl.useProgram(programs[program.DRAW]); + gl.uniformMatrix4fv(programs[program.DRAW].uniformLocations[uniform.MODEL], false, new Float32Array(glmMatToArray(camera.getModel()))); + gl.uniformMatrix4fv(programs[program.DRAW].uniformLocations[uniform.PROJECTIONVIEW], false, glmMatToArray(camera.getViewProj())); + var color1 = hexToRgb(config.mesh_color1); + var color2 = hexToRgb(config.mesh_color2); + gl.uniform4f(programs[program.DRAW].uniformLocations[uniform.COLOR1], color1.r/255,color1.g/255,color1.b/255,1.0); + gl.uniform4f(programs[program.DRAW].uniformLocations[uniform.COLOR2], color2.r/255,color2.g/255,color2.b/255,1.0); + gl.uniform1f(programs[program.DRAW].uniformLocations[uniform.PARTICLESIZE], config.particle_size); + + gl.enable(gl.DEPTH_TEST); + gl.drawArrays(gl.POINTS, 0, num_particles); + + + //swap the attribute buffers of particles shader with the buffers from transform feedback to be used as input in the next iteration + framework.webgl.swapAttributeBuffers(programs, [varying.POSTION, varying.VELOCITY, varying.ACCELERATION, varying.MASS]); +} + +//Source: http://stackoverflow.com/questions/5623838/rgb-to-hex-and-hex-to-rgb +function hexToRgb(hex) { + var result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex); + return result ? { + r: parseInt(result[1], 16), + g: parseInt(result[2], 16), + b: parseInt(result[3], 16) + } : null; +} + +// when the scene is done initializing, it will call onLoad, then on frame updates, call onUpdate +Framework.init(onLoad, onUpdate); \ No newline at end of file diff --git a/src/shaders/draw-frag.glsl b/src/shaders/draw-frag.glsl new file mode 100644 index 00000000..9d198b9c --- /dev/null +++ b/src/shaders/draw-frag.glsl @@ -0,0 +1,36 @@ +#version 300 es + +precision highp float; + +uniform sampler2D u_image; + +in vec3 out_pos; +in vec4 out_col1; +in vec4 out_col2; + +out vec4 fragColor; + + +vec4 rgb_lerp (vec4 col1, vec4 col2, float t) +{ + return vec4 + ( + col1.r + (col2.r - col1.r) * t, + col1.g + (col2.g - col1.g) * t, + col1.b + (col2.b - col1.b) * t, + col1.a + (col2.a - col1.a) * t + ); +} + +float hash(vec3 p) +{ + p = fract( p*0.3183099+.1); + p *= 17.0; + return fract( p.x*p.y*p.z*(p.x+p.y+p.z) ); +} + + +void main(void) { + + fragColor = rgb_lerp(out_col1,out_col2, hash(out_pos)/1.5); +} \ No newline at end of file diff --git a/src/shaders/draw-vert.glsl b/src/shaders/draw-vert.glsl new file mode 100644 index 00000000..cb6d7f4b --- /dev/null +++ b/src/shaders/draw-vert.glsl @@ -0,0 +1,31 @@ +#version 300 es + +uniform mat4 u_model; +uniform mat4 u_projectionView; +uniform vec4 u_color1; +uniform vec4 u_color2; +uniform float u_particleSize; + +in vec4 inPos; +in vec4 inVel; +in vec4 inAcc; +in float inMass; +//in vec4 inObjPos; + +out vec3 out_pos; +out vec4 out_col1; +out vec4 out_col2; + +void main() +{ + vec3 pos = inPos.xyz; + vec3 vel = inVel.xyz; + vec3 acc = inAcc.xyz; + float mass = inMass; + + gl_PointSize = u_particleSize; + gl_Position = u_projectionView * u_model * inPos; + out_pos = inPos.xyz; + out_col1 = u_color1; + out_col2 = u_color2; +} \ No newline at end of file diff --git a/src/shaders/particles-frag.glsl b/src/shaders/particles-frag.glsl new file mode 100644 index 00000000..83e5ea16 --- /dev/null +++ b/src/shaders/particles-frag.glsl @@ -0,0 +1,10 @@ +#version 300 es +//unused + +precision mediump float; + +out vec4 color; + +void main() { + color = vec4(1.0); +} \ No newline at end of file diff --git a/src/shaders/particles-vert.glsl b/src/shaders/particles-vert.glsl new file mode 100644 index 00000000..84bbe204 --- /dev/null +++ b/src/shaders/particles-vert.glsl @@ -0,0 +1,218 @@ +#version 300 es + +precision highp float; + +uniform float u_time; +uniform vec4 u_mouse; +uniform float u_mouseClicked; +uniform float u_particleSpeed; +uniform float u_particleNoise; +uniform float u_forceRadius; + +in vec4 inPos; +in vec4 inVel; +in vec4 inAcc; +in float inMass; +in vec4 inObjPos; + +out vec4 outPos; +out vec4 outVel; +out vec4 outAcc; +out float outMass; + +#define M_PI 3.1415926535897932384626433832795 + +float hash(vec3 p) +{ + p = fract( p*0.3183099+.1); + p *= 17.0; + return fract( p.x*p.y*p.z*(p.x+p.y+p.z) ); +} + +float smoothing(float x, float y, float z) { + + //left side + float l1 = hash(vec3(x-1.0,y-1.0,z-1.0)); + float l2 = hash(vec3(x-1.0,y-1.0,z)); + float l3 = hash(vec3(x-1.0,y-1.0,z+1.0)); + float l4 = hash(vec3(x-1.0,y,z-1.0)); + float l5 = hash(vec3(x-1.0,y,z)); + float l6 = hash(vec3(x-1.0,y-1.0,z+1.0)); + float l7 = hash(vec3(x-1.0,y+1.0,z-1.0)); + float l8 = hash(vec3(x-1.0,y+1.0,z)); + float l9 = hash(vec3(x-1.0,y+1.0,z+1.0)); + + //middle + float m1 = hash(vec3(x,y-1.0,z-1.0)); + float m2 = hash(vec3(x,y-1.0,z)); + float m3 = hash(vec3(x,y-1.0,z+1.0)); + float m4 = hash(vec3(x,y,z-1.0)); + float m5 = hash(vec3(x,y,z)); + float m6 = hash(vec3(x,y-1.0,z+1.0)); + float m7 = hash(vec3(x,y+1.0,z-1.0)); + float m8 = hash(vec3(x,y+1.0,z)); + float m9 = hash(vec3(x,y+1.0,z+1.0)); + + //right + float r1 = hash(vec3(x+1.0,y-1.0,z-1.0)); + float r2 = hash(vec3(x+1.0,y-1.0,z)); + float r3 = hash(vec3(x+1.0,y-1.0,z+1.0)); + float r4 = hash(vec3(x+1.0,y,z-1.0)); + float r5 = hash(vec3(x+1.0,y,z)); + float r6 = hash(vec3(x+1.0,y-1.0,z+1.0)); + float r7 = hash(vec3(x+1.0,y+1.0,z-1.0)); + float r8 = hash(vec3(x+1.0,y+1.0,z)); + float r9 = hash(vec3(x+1.0,y+1.0,z+1.0)); + + + //not including center point + float total = (l1) + (l2) + (l3) + + (l4) + (l5) + (l6) + + (l7) + (l8) + (l9) + + + (m1) + (m2) + (m3) + + (m4) + (m6) + + (m7) + (m8) + (m9) + + + (r1) + (r2) + (r3) + + (r4) + (r5) + (r6) + + (r7) + (r8) + (r9); + + float totalAvg = total / 27.0 * 0.25; //0.25 influence + + return totalAvg + m5 * 0.5; //0.5 original point influence +} + +float lerp(float a, float b, float t) { + return a * (1.0 - t) + b * t; +} + +float cos_interpolation(float a, float b, float t) { + float cos_t = (1.0 - cos(t * 3.141592653589793238462643383279)) * 0.5; + return lerp(a, b, cos_t); +} + +float interpolate_noise(float x, float y, float z) { + + vec3 v1 = vec3(floor(x), floor(y), floor(z)); + vec3 v2 = vec3(floor(x), floor(y), ceil(z)); + vec3 v3 = vec3(floor(x), ceil(y), floor(z)); + vec3 v4 = vec3(floor(x), ceil(y), ceil(z)); + + vec3 v5 = vec3(ceil(x), floor(y), floor(z)); + vec3 v6 = vec3(ceil(x), floor(y), ceil(z)); + vec3 v7 = vec3(ceil(x), ceil(y), floor(z)); + vec3 v8 = vec3(ceil(x), ceil(y), ceil(z)); + + + float x1, x2, y1, y2; + + x1 = cos_interpolation(smoothing(v1.x,v1.y,v1.z), + smoothing(v2.x,v2.y,v2.z), + z - floor(z)); + x2 = cos_interpolation(smoothing(v3.x,v3.y,v3.z), + smoothing(v4.x,v4.y,v4.z), + z - floor(z)); + + y1 = cos_interpolation(x1, x2, y - floor(y)); + + x1 = cos_interpolation(smoothing(v5.x, v5.y, v5.z), + smoothing(v6.x, v6.y, v6.z), + z - floor(z)); + x2 = cos_interpolation(smoothing(v7.x, v7.y, v7.z), + smoothing(v8.x,v8.y,v8.z), + z - floor(z)); + + y2 = cos_interpolation(x1, x2, y - floor(y)); + + return cos_interpolation(y1, y2, x - floor(x)); +} + +float perlin_noise(float x, float y, float z) { + + float total = 0.0; + float persistence = 1.5; + + float j = 0.0; + for (int i = 0; i < 5; i++) { + float frequency = pow(2.0,j); + float amplitude = pow(persistence, j); + + total += interpolate_noise(x * frequency, y * frequency, z * frequency) * amplitude; + + j = j + 1.0; + } + + return total; +} + +float map (float v, float range1, float range1end, float range2, float range2end) +{ + return (v - range1) / (range1end - range1) * (range2end - range2) + range2; +} + + + +void main() +{ + vec3 pos = inPos.xyz; + //pos = vec3(inPos.xy, 1000.0); + vec3 vel = inVel.xyz; + vec3 acc = inAcc.xyz; + vec3 objPos = inObjPos.xyz; + vec3 mousePos = u_mouse.xyz; + float mouseClicked = u_mouseClicked; + float mass = inMass; + + vec3 desired = objPos - pos; + float dist = length(desired); + + if (dist < u_forceRadius) { + + if (mouseClicked == 1.0) { + desired = mousePos - pos; + } else if (mouseClicked == 2.0) { + desired = pos - mousePos; + } + } + dist = length(desired); + + desired = normalize(desired); + + float maxSpeed = u_particleSpeed; + + //if particle is close to goal position map velocity to smaller range + //depending on how close the particle is to goal position. + if (dist < 3.0) { + + float m = map(dist, 0.0, 3.0, 0.0, maxSpeed); + desired *= m; + } else { + desired *= maxSpeed; + } + + vec3 steer = desired-vel; + steer /= mass; + steer = min(steer, vec3(maxSpeed,maxSpeed,maxSpeed)); + + acc = steer; + vel += acc; + + vec4 pos2 = vec4(pos.xyz+vel.xyz,1.0); + + //Noise + vec4 offset = vec4(vel,1.0) + u_time/100.0; + pos2 = pos2 + (perlin_noise(offset.x, offset.y, offset.z) * vec4(pos,1) / 1000.0 * u_particleNoise) * 1.0; + + //reset particle position if new position is too far. + if (length(pos2) > 200.0) { + //pos2 = vec4(pos.xyz-vel.xyz,1.0); + pos2 = vec4(0.,0.,0.,1.); + } + + outPos = pos2; + outVel = vec4(vel.x, vel.y,vel.z,1.0); + outAcc = vec4(acc.x, acc.y,acc.z,1.0); + outMass = mass; +} + diff --git a/src/webgl.js b/src/webgl.js new file mode 100644 index 00000000..6c4675cb --- /dev/null +++ b/src/webgl.js @@ -0,0 +1,190 @@ +function createProgram(gl, vertexShader, fragmentShader) { + var program = gl.createProgram(); + gl.attachShader(program, vertexShader); + gl.attachShader(program, fragmentShader); + gl.linkProgram(program); + var success = gl.getProgramParameter(program, gl.LINK_STATUS); + if (success) { + return program; + } + + console.log(gl.getProgramInfoLog(program)); + gl.deleteProgram(program); +} + +function createShader(gl, source, type) { + var shader = gl.createShader(type); + gl.shaderSource(shader, source); + gl.compileShader(shader); + var success = gl.getShaderParameter(shader, gl.COMPILE_STATUS); + if (success) { + return shader; + } + + console.log(gl.getShaderInfoLog(shader)); + gl.deleteShader(shader); +} + +export default function WebGL2() { + + + this.canvas = document.getElementById('canvas'); + this.gl = canvas.getContext('webgl2'); + this.programs = []; + + this.attributeBuffers = []; + + this.createPrograms = function(fileNames) { + + var gl = this.gl; + + for (var i = 0; i < fileNames.length; i++) { + + var vertexShaderSource = require('./shaders/' + fileNames[i] + '-vert.glsl'); + var fragmentShaderSource = require('./shaders/' + fileNames[i] + '-frag.glsl'); + + var vertexShader = createShader(gl, vertexShaderSource, gl.VERTEX_SHADER); + var fragmentShader = createShader(gl, fragmentShaderSource, gl.FRAGMENT_SHADER); + this.programs[i] = createProgram(gl, vertexShader, fragmentShader); + this.programs[i].attributeBuffers = []; + } + + return this.programs; + } + + this.setAttributeLocations = function (program, attributeNames) { + + var gl = this.gl; + program.attributeLocations = []; + + for (var i = 0; i < attributeNames.length; i++) { + program.attributeLocations[i] = gl.getAttribLocation(program, attributeNames[i]); + gl.enableVertexAttribArray(program.attributeLocations[i]); + } + + return program.attributeLocations; + } + + this.setAttributeLocationAtIndex = function (program, name, index) { + + var gl = this.gl; + + program.attributeLocations[index] = gl.getAttribLocation(program, name); + gl.enableVertexAttribArray(program.attributeLocations[index]); + + return program.attributeLocations; + } + + this.setUniformLocations = function (program, uniformNames) { + + var gl = this.gl; + program.uniformLocations = []; + + for (var i = 0; i < uniformNames.length; i++) { + program.uniformLocations[i] = gl.getUniformLocation(program, uniformNames[i]); + } + + return program.uniformLocations; + } + + this.setUniformLocationsAtIndices = function (program, uniformNames, uniformIndices) { + + var gl = this.gl; + + if ("undefined" === typeof program.uniformLocations) + program.uniformLocations = []; + + for (var i = 0; i < uniformNames.length; i++) { + program.uniformLocations[uniformIndices[i]] = gl.getUniformLocation(program, uniformNames[i]); + } + + return program.uniformLocations; + } + + this.setAttributeBufferAtIndex = function (program, bufferIndex, data) { + + var gl = this.gl; + var index = bufferIndex; + + program.attributeBuffers[index] = gl.createBuffer(); + gl.bindBuffer(gl.ARRAY_BUFFER, program.attributeBuffers[index]); + gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(data), gl.DYNAMIC_COPY); + + return program.attributeBuffers; + } + + + this.setVertexAttributePointerAtIndex = function (program, bufferIndex, components, offset) { + + var gl = this.gl; + gl.bindBuffer(gl.ARRAY_BUFFER, program.attributeBuffers[bufferIndex]); + //components per iteration, data is 32bit floats, don't normalize the data + gl.vertexAttribPointer(program.attributeLocations[bufferIndex], + components, gl.FLOAT, gl.FALSE, 0, offset); + } + + + this.setVertexAttributePointerAtIndices = function (program, bufferIndices, componentsArray, offset) { + + var gl = this.gl; + + for (var i = 0; i < bufferIndices.length; i++) { + + var index = bufferIndices[i]; + gl.bindBuffer(gl.ARRAY_BUFFER, program.attributeBuffers[index]); + //components per iteration, data is 32bit floats, don't normalize the data + gl.vertexAttribPointer(program.attributeLocations[index], + componentsArray[i], gl.FLOAT, gl.FALSE, 0, offset); + } + + } + + this.setVertexAttributePointers = function (program, bufferIndices) { + + var gl = this.gl; + + for (var i = 0; i < bufferIndices.length; i++) { + gl.bindBuffer(gl.ARRAY_BUFFER, program.attributeBuffers[bufferIndices[i]]); + //4 components per iteration, data is 32bit floats, don't normalize the data + gl.vertexAttribPointer(program.attributeLocations[bufferIndices[i]], + 4, gl.FLOAT, gl.FALSE, 0, 0); + } + } + + this.bindBufferBase = function (program, indices) { + + var gl = this.gl; + + for (var i = 0; i < indices.length; i++) { + + var index = indices[i]; + gl.bindBufferBase(gl.TRANSFORM_FEEDBACK_BUFFER, index, program.attributeBuffers[index]); + + } + + } + + this.clearBufferBase = function (program, indices) { + + var gl = this.gl; + + for (var i = 0; i < indices.length; i++) { + + var index = indices[i]; + gl.bindBufferBase(gl.TRANSFORM_FEEDBACK_BUFFER, index, null); + + } + + } + + this.swapAttributeBuffers = function (programs, bufferIndices) { + + for (var i = 0; i < bufferIndices.length; i++) { + var t = programs[0].attributeBuffers[bufferIndices[i]]; + programs[0].attributeBuffers[bufferIndices[i]] = programs[1].attributeBuffers[bufferIndices[i]]; + programs[1].attributeBuffers[bufferIndices[i]] = t; + } + + } + +} \ No newline at end of file diff --git a/webpack.config.js b/webpack.config.js new file mode 100644 index 00000000..4bd4eecd --- /dev/null +++ b/webpack.config.js @@ -0,0 +1,35 @@ +const path = require('path'); +module.exports = { + entry: path.join(__dirname, "src/main"), + output: { + path: path.join(__dirname, "build"), + filename: "bundle.js" + }, + module: { + loaders: [ + { + test: /\.js$/, + exclude: /(node_modules|bower_components)/, + loader: 'babel-loader', + query: { + presets: ['es2015'] + } + }, + { + test: /\.glsl$/, + loader: 'webpack-glsl-loader' + }, + { + test: /\.(obj|bmp|png|jpg|gif|mp3)$/, + loader: 'file-loader?name=./assets/[name]-[hash:6].[ext]' + } + ] + }, + devtool: 'source-map', + devServer: { + port: 7000 + }, + node: { + fs: 'empty' + } +} \ No newline at end of file