X-Git-Url: http://www.aleph1.co.uk/gitweb/?p=yaffs-website;a=blobdiff_plain;f=node_modules%2Fvideojs-vtt.js%2Flib%2Fvttcue.js;fp=node_modules%2Fvideojs-vtt.js%2Flib%2Fvttcue.js;h=76c9f622544da21bb01df6031bdbb56560865774;hp=0000000000000000000000000000000000000000;hb=a2bd1bf0c2c1f1a17d188f4dc0726a45494cefae;hpb=57c063afa3f66b07c4bbddc2d6129a96d90f0aad diff --git a/node_modules/videojs-vtt.js/lib/vttcue.js b/node_modules/videojs-vtt.js/lib/vttcue.js new file mode 100644 index 000000000..76c9f6225 --- /dev/null +++ b/node_modules/videojs-vtt.js/lib/vttcue.js @@ -0,0 +1,309 @@ +/** + * Copyright 2013 vtt.js Contributors + * + * 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. + */ + +(function(root, vttjs) { + + var autoKeyword = "auto"; + var directionSetting = { + "": true, + "lr": true, + "rl": true + }; + var alignSetting = { + "start": true, + "middle": true, + "end": true, + "left": true, + "right": true + }; + + function findDirectionSetting(value) { + if (typeof value !== "string") { + return false; + } + var dir = directionSetting[value.toLowerCase()]; + return dir ? value.toLowerCase() : false; + } + + function findAlignSetting(value) { + if (typeof value !== "string") { + return false; + } + var align = alignSetting[value.toLowerCase()]; + return align ? value.toLowerCase() : false; + } + + function extend(obj) { + var i = 1; + for (; i < arguments.length; i++) { + var cobj = arguments[i]; + for (var p in cobj) { + obj[p] = cobj[p]; + } + } + + return obj; + } + + function VTTCue(startTime, endTime, text) { + var cue = this; + var isIE8 = (/MSIE\s8\.0/).test(navigator.userAgent); + var baseObj = {}; + + if (isIE8) { + cue = document.createElement('custom'); + } else { + baseObj.enumerable = true; + } + + /** + * Shim implementation specific properties. These properties are not in + * the spec. + */ + + // Lets us know when the VTTCue's data has changed in such a way that we need + // to recompute its display state. This lets us compute its display state + // lazily. + cue.hasBeenReset = false; + + /** + * VTTCue and TextTrackCue properties + * http://dev.w3.org/html5/webvtt/#vttcue-interface + */ + + var _id = ""; + var _pauseOnExit = false; + var _startTime = startTime; + var _endTime = endTime; + var _text = text; + var _region = null; + var _vertical = ""; + var _snapToLines = true; + var _line = "auto"; + var _lineAlign = "start"; + var _position = 50; + var _positionAlign = "middle"; + var _size = 50; + var _align = "middle"; + + Object.defineProperty(cue, + "id", extend({}, baseObj, { + get: function() { + return _id; + }, + set: function(value) { + _id = "" + value; + } + })); + + Object.defineProperty(cue, + "pauseOnExit", extend({}, baseObj, { + get: function() { + return _pauseOnExit; + }, + set: function(value) { + _pauseOnExit = !!value; + } + })); + + Object.defineProperty(cue, + "startTime", extend({}, baseObj, { + get: function() { + return _startTime; + }, + set: function(value) { + if (typeof value !== "number") { + throw new TypeError("Start time must be set to a number."); + } + _startTime = value; + this.hasBeenReset = true; + } + })); + + Object.defineProperty(cue, + "endTime", extend({}, baseObj, { + get: function() { + return _endTime; + }, + set: function(value) { + if (typeof value !== "number") { + throw new TypeError("End time must be set to a number."); + } + _endTime = value; + this.hasBeenReset = true; + } + })); + + Object.defineProperty(cue, + "text", extend({}, baseObj, { + get: function() { + return _text; + }, + set: function(value) { + _text = "" + value; + this.hasBeenReset = true; + } + })); + + Object.defineProperty(cue, + "region", extend({}, baseObj, { + get: function() { + return _region; + }, + set: function(value) { + _region = value; + this.hasBeenReset = true; + } + })); + + Object.defineProperty(cue, + "vertical", extend({}, baseObj, { + get: function() { + return _vertical; + }, + set: function(value) { + var setting = findDirectionSetting(value); + // Have to check for false because the setting an be an empty string. + if (setting === false) { + throw new SyntaxError("An invalid or illegal string was specified."); + } + _vertical = setting; + this.hasBeenReset = true; + } + })); + + Object.defineProperty(cue, + "snapToLines", extend({}, baseObj, { + get: function() { + return _snapToLines; + }, + set: function(value) { + _snapToLines = !!value; + this.hasBeenReset = true; + } + })); + + Object.defineProperty(cue, + "line", extend({}, baseObj, { + get: function() { + return _line; + }, + set: function(value) { + if (typeof value !== "number" && value !== autoKeyword) { + throw new SyntaxError("An invalid number or illegal string was specified."); + } + _line = value; + this.hasBeenReset = true; + } + })); + + Object.defineProperty(cue, + "lineAlign", extend({}, baseObj, { + get: function() { + return _lineAlign; + }, + set: function(value) { + var setting = findAlignSetting(value); + if (!setting) { + throw new SyntaxError("An invalid or illegal string was specified."); + } + _lineAlign = setting; + this.hasBeenReset = true; + } + })); + + Object.defineProperty(cue, + "position", extend({}, baseObj, { + get: function() { + return _position; + }, + set: function(value) { + if (value < 0 || value > 100) { + throw new Error("Position must be between 0 and 100."); + } + _position = value; + this.hasBeenReset = true; + } + })); + + Object.defineProperty(cue, + "positionAlign", extend({}, baseObj, { + get: function() { + return _positionAlign; + }, + set: function(value) { + var setting = findAlignSetting(value); + if (!setting) { + throw new SyntaxError("An invalid or illegal string was specified."); + } + _positionAlign = setting; + this.hasBeenReset = true; + } + })); + + Object.defineProperty(cue, + "size", extend({}, baseObj, { + get: function() { + return _size; + }, + set: function(value) { + if (value < 0 || value > 100) { + throw new Error("Size must be between 0 and 100."); + } + _size = value; + this.hasBeenReset = true; + } + })); + + Object.defineProperty(cue, + "align", extend({}, baseObj, { + get: function() { + return _align; + }, + set: function(value) { + var setting = findAlignSetting(value); + if (!setting) { + throw new SyntaxError("An invalid or illegal string was specified."); + } + _align = setting; + this.hasBeenReset = true; + } + })); + + /** + * Other spec defined properties + */ + + // http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#text-track-cue-display-state + cue.displayState = undefined; + + if (isIE8) { + return cue; + } + } + + /** + * VTTCue methods + */ + + VTTCue.prototype.getCueAsHTML = function() { + // Assume WebVTT.convertCueToDOMTree is on the global. + return WebVTT.convertCueToDOMTree(window, this.text); + }; + + root.VTTCue = root.VTTCue || VTTCue; + vttjs.VTTCue = VTTCue; +}(this, (this.vttjs || {})));