2a09d1a4
 liuqimichale
添加宜春 天水 宣化
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/**
* 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.
*/
// If we're in Node.js then require VTTCue so we can extend it, otherwise assume
// VTTCue is on the global.
if (typeof module !== "undefined" && module.exports) {
this.VTTCue = this.VTTCue || require("./vttcue").VTTCue;
}
// Extend VTTCue with methods to convert to JSON, from JSON, and construct a
// VTTCue from an options object. The primary purpose of this is for use in the
// vtt.js test suite (for testing only properties that we care about). It's also
// useful if you need to work with VTTCues in JSON format.
(function(root) {
root.VTTCue.prototype.toJSON = function() {
var cue = {},
self = this;
// Filter out getCueAsHTML as it's a function and hasBeenReset and displayState as
// they're only used when running the processing model algorithm.
Object.keys(this).forEach(function(key) {
if (key !== "getCueAsHTML" && key !== "hasBeenReset" && key !== "displayState") {
cue[key] = self[key];
}
});
return cue;
};
root.VTTCue.create = function(options) {
if (!options.hasOwnProperty("startTime") || !options.hasOwnProperty("endTime") ||
!options.hasOwnProperty("text")) {
throw new Error("You must at least have start time, end time, and text.");
}
var cue = new root.VTTCue(options.startTime, options.endTime, options.text);
for (var key in options) {
if (cue.hasOwnProperty(key)) {
cue[key] = options[key];
}
}
return cue;
};
root.VTTCue.fromJSON = function(json) {
return this.create(JSON.parse(json));
};
}(this));
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