Add screenshot button to video annotator

resources/assets/js/annotations/annotatorContainer.vue

@@ -87,6 +87,7 @@ export default {
             userUpdatedVolareResolution: false,
             userId: null,
             crossOriginError: false,
+            imageFilenames: {}
         };
     },
     computed: {
@@ -682,6 +683,7 @@ export default {
         this.volumeId = biigle.$require('annotations.volumeId');
         this.isEditor = biigle.$require('annotations.isEditor');
         this.userId = biigle.$require('annotations.userId');
+        this.imageFilenames = biigle.$require('annotations.imagesFilenames');
         this.annotationFilters = [
             new LabelFilter(),
             new UserFilter(),

resources/assets/js/annotations/components/screenshotButton.vue

@@ -9,16 +9,29 @@ import Keyboard from '../../core/keyboard';
  * @type {Object}
  */
 export default {
+    props: {
+        filenames: {
+            type: Array,
+            default: () => [],
+        },
+        currentId: {
+            type: Number,
+            default: -1,
+        },
+        ids: {
+            type: Array,
+            default: () => []
+        }
+    },
     data() {
         return {
-            filenames: {},
-            currentId: null,
-        };
+            filesObj: {}
+        }
     },
     computed: {
         filename() {
             if (this.currentId) {
-                let name = this.filenames[this.currentId].split('.');
+                let name = this.filesObj[this.currentId].split('.');
                 if (name.length > 1) {
                     name[name.length - 1] = 'png';
                 }
@@ -145,21 +158,14 @@ export default {
         setMap(map) {
             this.map = map;
         },
-        updateCurrentId(id) {
-            this.currentId = id;
-        },
     },
     created() {
-        let ids = biigle.$require('annotations.imagesIds');
-        let filenames = {};
-        biigle.$require('annotations.imagesFilenames').forEach((filename, index) => {
-            filenames[ids[index]] = filename;
+        this.filenames.forEach((filename, index) => {
+            this.filesObj[this.ids[index]] = filename;
         });
-        this.filenames = filenames;
-        this.currentId = biigle.$require('annotations.imageId');
-        Events.$on('images.change', this.updateCurrentId);
-        Events.$on('annotations.map.init', this.setMap);
+
         Keyboard.on('p', this.capture);
+        Events.$on(['annotations.map.init', 'videos.map.init'], this.setMap);
     },
 };
 </script>

resources/assets/js/annotations/components/settingsTab.vue

@@ -30,6 +30,18 @@ export default {
             type: Object,
             default: null,
         },
+        imageFilenames: {
+            type: Array,
+            default: () => [],
+        },
+        currentId: {
+            type: Number,
+            default: -1,
+        },
+        ids: {
+            type: Array,
+            default: () => []
+        }
     },
     data() {
         return {

resources/assets/js/videos/components/settingsTab.vue

@@ -1,17 +1,39 @@
 <script>
 import PowerToggle from '../../core/components/powerToggle';
 import Settings from '../stores/settings';
+import ScreenshotButton from '../../annotations/components/screenshotButton.vue';
 import Keyboard from '../../core/keyboard';
 
 export default {
     components: {
         powerToggle: PowerToggle,
+        screenshotButton: ScreenshotButton
     },
     props: {
         supportsJumpByFrame: {
             type: Boolean,
             default: false,
         },
+        crossOriginError: {
+            type: Boolean,
+            default: false,
+        },
+        videoFilenames: {
+            type: Array,
+            default: () => []
+        },
+        currentId: {
+            type: Number,
+            default: -1,
+        },
+        map: {
+            type: Object,
+            default: null,
+        },
+        ids: {
+            type: Array,
+            default: () => []
+        }
     },
     data() {
         return {

resources/assets/js/videos/videoContainer.vue

@@ -99,6 +99,8 @@ export default {
             swappingLabel: false,
             disableJobTracking: false,
             supportsJumpByFrame: false,
+            hasCrossOriginError: false,
+            videoFilenames: null,
             focusInputFindlabel: false,
         };
     },
@@ -557,6 +559,7 @@ export default {
             let videoPromise = new Vue.Promise((resolve) => {
                 this.video.addEventListener('canplay', resolve);
             });
+            videoPromise.then(this.checkCORSProperty);
             let annotationPromise = VideoAnnotationApi.query({id: video.id});
             let promise = Vue.Promise.all([annotationPromise, videoPromise])
                 .then(this.setAnnotations)
@@ -586,6 +589,16 @@ export default {
 
             return promise;
         },
+        checkCORSProperty() {
+            let testCanvas = document.createElement('canvas');
+            let ctx = testCanvas.getContext('2d');
+            ctx.drawImage(this.video, 0, 0);
+            try {
+                ctx.getImageData(0, 0, 1, 1);
+            } catch (e) {                
+                this.hasCrossOriginError = true;
+            }
+        },
         showPreviousVideo() {
             this.reset();
             let length = this.videoIds.length;
@@ -723,6 +736,7 @@ export default {
         this.labelTrees = biigle.$require('videos.labelTrees');
         this.errors = biigle.$require('videos.errors');
         this.user = biigle.$require('videos.user');
+        this.videoFilenames = biigle.$require('videos.videoFilenames');
 
         this.initAnnotationFilters();
         this.restoreUrlParams();
@@ -769,6 +783,8 @@ export default {
         if(navigator.userAgent.toLowerCase().indexOf('firefox') > -1){
             Messages.danger('Current versions of the Firefox browser may not show the correct video frame for a given time. Annotations may be placed incorrectly. Please consider using Chrome until the issue is fixed in Firefox. Learn more on https://github.com/biigle/core/issues/391.');
         }
+
+        Events.$emit('videos.map.init', this.$refs.videoScreen.map);
     },
 };
 </script>

resources/views/annotations/show/tabs/settings.blade.php

@@ -1,9 +1,22 @@
 <sidebar-tab name="settings" icon="cog" title="Settings" :highlight="highlightSettingsTab">
-    <settings-tab v-cloak :image="image" v-on:change="handleSettingsChange" inline-template>
+    <settings-tab
+    v-cloak
+    :image="image"
+    :current-id="imageId"
+    :image-filenames="imageFilenames"
+    :ids="allImagesIds"
+    v-on:change="handleSettingsChange"
+    inline-template>
         <div class="annotator-tab">
             <div class="sidebar-tab__section">
                 <button v-if="crossOrigin" class="btn btn-default" title="Screenshots are not available for remote images without cross-origin resource sharing" disabled="disabled" ><span class="fa fa-camera" aria-hidden="true"></span> Capture screenshot</button>
-                <screenshot-button v-else inline-template>
+                <screenshot-button
+                    v-else
+                    inline-template
+                    :current-id="currentId"
+                    :filenames="imageFilenames"
+                    :ids="ids"
+                    >
                     <button class="btn btn-default" title="Get a screenshot of the visible area 𝗣" v-on:click="capture"><span class="fa fa-camera" aria-hidden="true"></span> Capture screenshot</button>
                 </screenshot-button>
             </div>

resources/views/manual/tutorials/videos/shortcuts.blade.php

@@ -123,6 +123,9 @@
                     <td><kbd>c</kbd></td>
                     <td>Select last created annotation</td>
                 </tr>
+                 <tr>
+                    <td><kbd>p</kbd></td>
+                    <td>Capture a screenshot</td>
                 <tr>
                     <td><kbd>Ctrl</kbd>+<kbd>k</kbd></td>
                     <td>Open label trees sidebar and focus the find label input field</td>

resources/views/videos/show/sidebar-settings.blade.php

@@ -2,8 +2,24 @@
     <settings-tab inline-template
         v-on:update="handleUpdatedSettings"
         :supports-jump-by-frame="supportsJumpByFrame"
+        :cross-origin-error="hasCrossOriginError"
+        :current-id="videoId"
+        :video-filenames="videoFilenames"
+        :ids="videoIds"
         >
             <div class="annotator-tab settings-tab">
+                <div class="sidebar-tab__section">
+                    <button v-if="crossOriginError" class="btn btn-default" title="Screenshots are not available for remote videos without cross-origin resource sharing" disabled="disabled" ><span class="fa fa-camera" aria-hidden="true"></span> Capture screenshot</button>
+                    <screenshot-button
+                    v-else
+                    inline-template
+                    :current-id="currentId"
+                    :filenames="videoFilenames"
+                    :ids="ids"
+                    >
+                        <button class="btn btn-default" title="Get a screenshot of the visible area 𝗣" v-on:click="capture"><span class="fa fa-camera" aria-hidden="true"></span> Capture screenshot</button>
+                    </screenshot-button>
+                </div>
 
                 <div class="sidebar-tab__section">
                     <h5 title="Set the opacity of annotations">Annotation Opacity (<span v-text="annotationOpacity"></span>)</h5>