Introducing Stagehand

.gitignore

@@ -0,0 +1,32 @@
+# OS X
+.DS_Store
+
+# Xcode
+build/
+*.pbxuser
+!default.pbxuser
+*.mode1v3
+!default.mode1v3
+*.mode2v3
+!default.mode2v3
+*.perspectivev3
+!default.perspectivev3
+xcuserdata/
+*.xccheckout
+profile
+*.moved-aside
+DerivedData
+*.hmap
+*.ipa
+
+# Bundler
+.bundle
+
+# Carthage
+Carthage/Build
+
+# CocoaPods
+Pods/
+
+# Swift Playgrounds
+timeline.xctimeline

.travis.yml

@@ -0,0 +1,8 @@
+osx_image: xcode10.3
+language: objective-c
+install:
+  - bundle install --gemfile=Example/Gemfile
+  - bundle exec --gemfile=Example/Gemfile pod install --project-directory=Example
+script:
+  - set -o pipefail && xcodebuild test -enableCodeCoverage YES -workspace Example/Stagehand.xcworkspace -scheme "Stagehand Demo App" -sdk iphonesimulator12.4 ONLY_ACTIVE_ARCH=NO | xcpretty
+  - bundle exec --gemfile=Example/Gemfile pod lib lint

CONTRIBUTING.md

@@ -0,0 +1,23 @@
+### Sign the CLA
+
+All contributors to your PR must sign our [Individual Contributor License Agreement (CLA)](https://spreadsheets.google.com/spreadsheet/viewform?formkey=dDViT2xzUHAwRkI3X3k5Z0lQM091OGc6MQ&ndplr=1). The CLA is a short form that ensures that you are eligible to contribute.
+
+### One Issue per Pull Request
+
+Keep your Pull Requests small. Small PRs are easier to reason about which makes them significantly more likely to get merged.
+
+### Issues Before Features
+
+If you want to add a feature, please file an [Issue](https://github.com/CashApp/Stagehand/issues) first. An Issue gives us the opportunity to discuss the requirements and implications of a feature with you before you start writing code.
+
+### Backwards Compatibility
+
+Respect the minimum deployment target. If you are adding code that uses new APIs, make sure to prevent older clients from crashing or misbehaving. Our CI runs against our minimum deployment targets, so you will not get a green build unless your code is backwards compatible.
+
+### Forwards Compatibility
+
+Please do not write new code using deprecated APIs.
+
+### Keep the Demo App and Documentation Updated
+
+When adding new features or making changes to existing features, make sure to update the included demo app and tutorial playground so new users can understand what's available.

Example/Gemfile

@@ -0,0 +1,3 @@
+source 'https://rubygems.org' do
+	gem 'cocoapods', '~> 1.8'
+end

Example/Gemfile.lock

@@ -0,0 +1,83 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    CFPropertyList (3.0.1)
+    activesupport (4.2.11.1)
+      i18n (~> 0.7)
+      minitest (~> 5.1)
+      thread_safe (~> 0.3, >= 0.3.4)
+      tzinfo (~> 1.1)
+    algoliasearch (1.27.1)
+      httpclient (~> 2.8, >= 2.8.3)
+      json (>= 1.5.1)
+    atomos (0.1.3)
+    claide (1.0.3)
+    cocoapods (1.8.4)
+      activesupport (>= 4.0.2, < 5)
+      claide (>= 1.0.2, < 2.0)
+      cocoapods-core (= 1.8.4)
+      cocoapods-deintegrate (>= 1.0.3, < 2.0)
+      cocoapods-downloader (>= 1.2.2, < 2.0)
+      cocoapods-plugins (>= 1.0.0, < 2.0)
+      cocoapods-search (>= 1.0.0, < 2.0)
+      cocoapods-stats (>= 1.0.0, < 2.0)
+      cocoapods-trunk (>= 1.4.0, < 2.0)
+      cocoapods-try (>= 1.1.0, < 2.0)
+      colored2 (~> 3.1)
+      escape (~> 0.0.4)
+      fourflusher (>= 2.3.0, < 3.0)
+      gh_inspector (~> 1.0)
+      molinillo (~> 0.6.6)
+      nap (~> 1.0)
+      ruby-macho (~> 1.4)
+      xcodeproj (>= 1.11.1, < 2.0)
+    cocoapods-core (1.8.4)
+      activesupport (>= 4.0.2, < 6)
+      algoliasearch (~> 1.0)
+      concurrent-ruby (~> 1.1)
+      fuzzy_match (~> 2.0.4)
+      nap (~> 1.0)
+    cocoapods-deintegrate (1.0.4)
+    cocoapods-downloader (1.2.2)
+    cocoapods-plugins (1.0.0)
+      nap
+    cocoapods-search (1.0.0)
+    cocoapods-stats (1.1.0)
+    cocoapods-trunk (1.4.1)
+      nap (>= 0.8, < 2.0)
+      netrc (~> 0.11)
+    cocoapods-try (1.1.0)
+    colored2 (3.1.2)
+    concurrent-ruby (1.1.5)
+    escape (0.0.4)
+    fourflusher (2.3.1)
+    fuzzy_match (2.0.4)
+    gh_inspector (1.1.3)
+    httpclient (2.8.3)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
+    json (2.2.0)
+    minitest (5.12.2)
+    molinillo (0.6.6)
+    nanaimo (0.2.6)
+    nap (1.1.0)
+    netrc (0.11.0)
+    ruby-macho (1.4.0)
+    thread_safe (0.3.6)
+    tzinfo (1.2.5)
+      thread_safe (~> 0.1)
+    xcodeproj (1.13.0)
+      CFPropertyList (>= 2.3.3, < 4.0)
+      atomos (~> 0.1.3)
+      claide (>= 1.0.2, < 2.0)
+      colored2 (~> 3.1)
+      nanaimo (~> 0.2.6)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  cocoapods (~> 1.8)!
+
+BUNDLED WITH
+   1.17.3

Example/Performance Tests/AnimationCurvePerformanceTests.swift

@@ -0,0 +1,68 @@
+//
+//  Copyright 2019 Square Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at
+//
+//  http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+//
+
+import Stagehand
+import XCTest
+
+final class AnimationCurvePerformanceTests: XCTestCase {
+
+    func testParabolicEaseInPerformance() {
+        let curve = ParabolicEaseInAnimationCurve()
+        measure {
+            for _ in 0...100 {
+                for i in 0...10000 {
+                    let progress = Double(i) / 10000
+                    _ = curve.adjustedProgress(for: progress)
+                }
+            }
+        }
+    }
+
+    func testParabolicEaseOutPerformance() {
+        let curve = ParabolicEaseOutAnimationCurve()
+        measure {
+            for _ in 0...100 {
+                for i in 0...10000 {
+                    let progress = Double(i) / 10000
+                    _ = curve.adjustedProgress(for: progress)
+                }
+            }
+        }
+    }
+
+    func testSinusoidalEaseInEaseOutPerformance() {
+        let curve = SinusoidalEaseInEaseOutAnimationCurve()
+        measure {
+            for _ in 0...100 {
+                for i in 0...10000 {
+                    let progress = Double(i) / 10000
+                    _ = curve.adjustedProgress(for: progress)
+                }
+            }
+        }
+    }
+
+    func testCubicBezierEaseInPerformance() {
+        let curve = CubicBezierAnimationCurve.easeIn
+        measure {
+            for i in 0...10000 {
+                let progress = Double(i) / 10000
+                _ = curve.adjustedProgress(for: progress)
+            }
+        }
+    }
+
+}

Example/Performance Tests/Info.plist

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>BNDL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+</dict>
+</plist>

Example/Podfile

@@ -0,0 +1,21 @@
+use_frameworks!
+
+platform :ios, '10.0'
+
+target 'Stagehand_Example' do
+  pod 'Stagehand', :path => '../'
+
+  target 'Stagehand-UnitTests' do
+    inherit! :search_paths
+
+    pod 'StagehandTesting', :path => '../'
+  end
+
+  target 'Stagehand-PerformanceTests' do
+    inherit! :search_paths
+
+    pod 'Stagehand', :path => '../'
+  end
+end
+
+install! 'cocoapods', disable_input_output_paths: true

Example/Podfile.lock

@@ -0,0 +1,33 @@
+PODS:
+  - iOSSnapshotTestCase (6.2.0):
+    - iOSSnapshotTestCase/SwiftSupport (= 6.2.0)
+  - iOSSnapshotTestCase/Core (6.2.0)
+  - iOSSnapshotTestCase/SwiftSupport (6.2.0):
+    - iOSSnapshotTestCase/Core
+  - Stagehand (1.0)
+  - StagehandTesting (1.0):
+    - iOSSnapshotTestCase (~> 6.1)
+    - Stagehand (= 1.0)
+
+DEPENDENCIES:
+  - Stagehand (from `../`)
+  - StagehandTesting (from `../`)
+
+SPEC REPOS:
+  trunk:
+    - iOSSnapshotTestCase
+
+EXTERNAL SOURCES:
+  Stagehand:
+    :path: "../"
+  StagehandTesting:
+    :path: "../"
+
+SPEC CHECKSUMS:
+  iOSSnapshotTestCase: 9ab44cb5aa62b84d31847f40680112e15ec579a6
+  Stagehand: 98d49307100b8f506e18a101d87d3a7079f8e80b
+  StagehandTesting: 62f623e597e5935c91bd78b735b60351bf607f64
+
+PODFILE CHECKSUM: e2058eb578e4d6fb432b015c43b4e221c1b70e87
+
+COCOAPODS: 1.8.4