--- /dev/null
+'use strict';
+
+exports.__esModule = true;
+
+var _component = require('../component');
+
+var _component2 = _interopRequireDefault(_component);
+
+var _fn = require('../utils/fn.js');
+
+var Fn = _interopRequireWildcard(_fn);
+
+var _window = require('global/window');
+
+var _window2 = _interopRequireDefault(_window);
+
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj['default'] = obj; return newObj; } }
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
+
+function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } /**
+ * @file text-track-display.js
+ */
+
+
+var darkGray = '#222';
+var lightGray = '#ccc';
+var fontMap = {
+ monospace: 'monospace',
+ sansSerif: 'sans-serif',
+ serif: 'serif',
+ monospaceSansSerif: '"Andale Mono", "Lucida Console", monospace',
+ monospaceSerif: '"Courier New", monospace',
+ proportionalSansSerif: 'sans-serif',
+ proportionalSerif: 'serif',
+ casual: '"Comic Sans MS", Impact, fantasy',
+ script: '"Monotype Corsiva", cursive',
+ smallcaps: '"Andale Mono", "Lucida Console", monospace, sans-serif'
+};
+
+/**
+ * Construct an rgba color from a given hex color code.
+ *
+ * @param {number} color
+ * Hex number for color, like #f0e.
+ *
+ * @param {number} opacity
+ * Value for opacity, 0.0 - 1.0.
+ *
+ * @return {string}
+ * The rgba color that was created, like 'rgba(255, 0, 0, 0.3)'.
+ *
+ * @private
+ */
+function constructColor(color, opacity) {
+ return 'rgba(' +
+ // color looks like "#f0e"
+ parseInt(color[1] + color[1], 16) + ',' + parseInt(color[2] + color[2], 16) + ',' + parseInt(color[3] + color[3], 16) + ',' + opacity + ')';
+}
+
+/**
+ * Try to update the style of a DOM element. Some style changes will throw an error,
+ * particularly in IE8. Those should be noops.
+ *
+ * @param {Element} el
+ * The DOM element to be styled.
+ *
+ * @param {string} style
+ * The CSS property on the element that should be styled.
+ *
+ * @param {string} rule
+ * The style rule that should be applied to the property.
+ */
+function tryUpdateStyle(el, style, rule) {
+ try {
+ el.style[style] = rule;
+ } catch (e) {
+
+ // Satisfies linter.
+ return;
+ }
+}
+
+/**
+ * The component for displaying text track cues.
+ *
+ * @extends Component
+ */
+
+var TextTrackDisplay = function (_Component) {
+ _inherits(TextTrackDisplay, _Component);
+
+ /**
+ * Creates an instance of this class.
+ *
+ * @param {Player} player
+ * The `Player` that this class should be attached to.
+ *
+ * @param {Object} [options]
+ * The key/value store of player options.
+ *
+ * @param {Component~ReadyCallback} [ready]
+ * The function to call when `TextTrackDisplay` is ready.
+ */
+ function TextTrackDisplay(player, options, ready) {
+ _classCallCheck(this, TextTrackDisplay);
+
+ var _this = _possibleConstructorReturn(this, _Component.call(this, player, options, ready));
+
+ player.on('loadstart', Fn.bind(_this, _this.toggleDisplay));
+ player.on('texttrackchange', Fn.bind(_this, _this.updateDisplay));
+
+ // This used to be called during player init, but was causing an error
+ // if a track should show by default and the display hadn't loaded yet.
+ // Should probably be moved to an external track loader when we support
+ // tracks that don't need a display.
+ player.ready(Fn.bind(_this, function () {
+ if (player.tech_ && player.tech_.featuresNativeTextTracks) {
+ this.hide();
+ return;
+ }
+
+ player.on('fullscreenchange', Fn.bind(this, this.updateDisplay));
+
+ var tracks = this.options_.playerOptions.tracks || [];
+
+ for (var i = 0; i < tracks.length; i++) {
+ this.player_.addRemoteTextTrack(tracks[i], true);
+ }
+
+ var modes = { captions: 1, subtitles: 1 };
+ var trackList = this.player_.textTracks();
+ var firstDesc = void 0;
+ var firstCaptions = void 0;
+
+ if (trackList) {
+ for (var _i = 0; _i < trackList.length; _i++) {
+ var track = trackList[_i];
+
+ if (track['default']) {
+ if (track.kind === 'descriptions' && !firstDesc) {
+ firstDesc = track;
+ } else if (track.kind in modes && !firstCaptions) {
+ firstCaptions = track;
+ }
+ }
+ }
+
+ // We want to show the first default track but captions and subtitles
+ // take precedence over descriptions.
+ // So, display the first default captions or subtitles track
+ // and otherwise the first default descriptions track.
+ if (firstCaptions) {
+ firstCaptions.mode = 'showing';
+ } else if (firstDesc) {
+ firstDesc.mode = 'showing';
+ }
+ }
+ }));
+ return _this;
+ }
+
+ /**
+ * Turn display of {@link TextTrack}'s from the current state into the other state.
+ * There are only two states:
+ * - 'shown'
+ * - 'hidden'
+ *
+ * @listens Player#loadstart
+ */
+
+
+ TextTrackDisplay.prototype.toggleDisplay = function toggleDisplay() {
+ if (this.player_.tech_ && this.player_.tech_.featuresNativeTextTracks) {
+ this.hide();
+ } else {
+ this.show();
+ }
+ };
+
+ /**
+ * Create the {@link Component}'s DOM element.
+ *
+ * @return {Element}
+ * The element that was created.
+ */
+
+
+ TextTrackDisplay.prototype.createEl = function createEl() {
+ return _Component.prototype.createEl.call(this, 'div', {
+ className: 'vjs-text-track-display'
+ }, {
+ 'aria-live': 'off',
+ 'aria-atomic': 'true'
+ });
+ };
+
+ /**
+ * Clear all displayed {@link TextTrack}s.
+ */
+
+
+ TextTrackDisplay.prototype.clearDisplay = function clearDisplay() {
+ if (typeof _window2['default'].WebVTT === 'function') {
+ _window2['default'].WebVTT.processCues(_window2['default'], [], this.el_);
+ }
+ };
+
+ /**
+ * Update the displayed TextTrack when a either a {@link Player#texttrackchange} or
+ * a {@link Player#fullscreenchange} is fired.
+ *
+ * @listens Player#texttrackchange
+ * @listens Player#fullscreenchange
+ */
+
+
+ TextTrackDisplay.prototype.updateDisplay = function updateDisplay() {
+ var tracks = this.player_.textTracks();
+
+ this.clearDisplay();
+
+ if (!tracks) {
+ return;
+ }
+
+ // Track display prioritization model: if multiple tracks are 'showing',
+ // display the first 'subtitles' or 'captions' track which is 'showing',
+ // otherwise display the first 'descriptions' track which is 'showing'
+
+ var descriptionsTrack = null;
+ var captionsSubtitlesTrack = null;
+
+ var i = tracks.length;
+
+ while (i--) {
+ var track = tracks[i];
+
+ if (track.mode === 'showing') {
+ if (track.kind === 'descriptions') {
+ descriptionsTrack = track;
+ } else {
+ captionsSubtitlesTrack = track;
+ }
+ }
+ }
+
+ if (captionsSubtitlesTrack) {
+ if (this.getAttribute('aria-live') !== 'off') {
+ this.setAttribute('aria-live', 'off');
+ }
+ this.updateForTrack(captionsSubtitlesTrack);
+ } else if (descriptionsTrack) {
+ if (this.getAttribute('aria-live') !== 'assertive') {
+ this.setAttribute('aria-live', 'assertive');
+ }
+ this.updateForTrack(descriptionsTrack);
+ }
+ };
+
+ /**
+ * Add an {@link Texttrack} to to the {@link Tech}s {@link TextTrackList}.
+ *
+ * @param {TextTrack} track
+ * Text track object to be added to the list.
+ */
+
+
+ TextTrackDisplay.prototype.updateForTrack = function updateForTrack(track) {
+ if (typeof _window2['default'].WebVTT !== 'function' || !track.activeCues) {
+ return;
+ }
+
+ var overrides = this.player_.textTrackSettings.getValues();
+ var cues = [];
+
+ for (var _i2 = 0; _i2 < track.activeCues.length; _i2++) {
+ cues.push(track.activeCues[_i2]);
+ }
+
+ _window2['default'].WebVTT.processCues(_window2['default'], cues, this.el_);
+
+ var i = cues.length;
+
+ while (i--) {
+ var cue = cues[i];
+
+ if (!cue) {
+ continue;
+ }
+
+ var cueDiv = cue.displayState;
+
+ if (overrides.color) {
+ cueDiv.firstChild.style.color = overrides.color;
+ }
+ if (overrides.textOpacity) {
+ tryUpdateStyle(cueDiv.firstChild, 'color', constructColor(overrides.color || '#fff', overrides.textOpacity));
+ }
+ if (overrides.backgroundColor) {
+ cueDiv.firstChild.style.backgroundColor = overrides.backgroundColor;
+ }
+ if (overrides.backgroundOpacity) {
+ tryUpdateStyle(cueDiv.firstChild, 'backgroundColor', constructColor(overrides.backgroundColor || '#000', overrides.backgroundOpacity));
+ }
+ if (overrides.windowColor) {
+ if (overrides.windowOpacity) {
+ tryUpdateStyle(cueDiv, 'backgroundColor', constructColor(overrides.windowColor, overrides.windowOpacity));
+ } else {
+ cueDiv.style.backgroundColor = overrides.windowColor;
+ }
+ }
+ if (overrides.edgeStyle) {
+ if (overrides.edgeStyle === 'dropshadow') {
+ cueDiv.firstChild.style.textShadow = '2px 2px 3px ' + darkGray + ', 2px 2px 4px ' + darkGray + ', 2px 2px 5px ' + darkGray;
+ } else if (overrides.edgeStyle === 'raised') {
+ cueDiv.firstChild.style.textShadow = '1px 1px ' + darkGray + ', 2px 2px ' + darkGray + ', 3px 3px ' + darkGray;
+ } else if (overrides.edgeStyle === 'depressed') {
+ cueDiv.firstChild.style.textShadow = '1px 1px ' + lightGray + ', 0 1px ' + lightGray + ', -1px -1px ' + darkGray + ', 0 -1px ' + darkGray;
+ } else if (overrides.edgeStyle === 'uniform') {
+ cueDiv.firstChild.style.textShadow = '0 0 4px ' + darkGray + ', 0 0 4px ' + darkGray + ', 0 0 4px ' + darkGray + ', 0 0 4px ' + darkGray;
+ }
+ }
+ if (overrides.fontPercent && overrides.fontPercent !== 1) {
+ var fontSize = _window2['default'].parseFloat(cueDiv.style.fontSize);
+
+ cueDiv.style.fontSize = fontSize * overrides.fontPercent + 'px';
+ cueDiv.style.height = 'auto';
+ cueDiv.style.top = 'auto';
+ cueDiv.style.bottom = '2px';
+ }
+ if (overrides.fontFamily && overrides.fontFamily !== 'default') {
+ if (overrides.fontFamily === 'small-caps') {
+ cueDiv.firstChild.style.fontVariant = 'small-caps';
+ } else {
+ cueDiv.firstChild.style.fontFamily = fontMap[overrides.fontFamily];
+ }
+ }
+ }
+ };
+
+ return TextTrackDisplay;
+}(_component2['default']);
+
+_component2['default'].registerComponent('TextTrackDisplay', TextTrackDisplay);
+exports['default'] = TextTrackDisplay;
projects / yaffs-website / blobdiff