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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
Components.utils.import("resource://gre/modules/vtt.jsm");
var Ci = Components.interfaces;
var WEBVTTPARSERWRAPPER_CID = "{acf6e493-0092-4b26-b172-241e375c57ab}";
var WEBVTTPARSERWRAPPER_CONTRACTID = "@mozilla.org/webvttParserWrapper;1";
function WebVTTParserWrapper()
{
// Nothing
}
WebVTTParserWrapper.prototype =
{
loadParser: function(window)
{
this.parser = new WebVTT.Parser(window, new TextDecoder("utf8"));
},
parse: function(data)
{
// We can safely translate the string data to a Uint8Array as we are
// guaranteed character codes only from \u0000 => \u00ff
var buffer = new Uint8Array(data.length);
for (var i = 0; i < data.length; i++) {
buffer[i] = data.charCodeAt(i);
}
this.parser.parse(buffer);
},
flush: function()
{
this.parser.flush();
},
watch: function(callback)
{
this.parser.oncue = callback.onCue;
this.parser.onregion = callback.onRegion;
this.parser.onparsingerror = function(e) {
// Passing the just the error code back is enough for our needs.
callback.onParsingError(("code" in e) ? e.code : -1);
};
},
convertCueToDOMTree: function(window, cue)
{
return WebVTT.convertCueToDOMTree(window, cue.text);
},
processCues: function(window, cues, overlay, controls)
{
WebVTT.processCues(window, cues, overlay, controls);
},
classDescription: "Wrapper for the JS WebVTT implementation (vtt.js)",
classID: Components.ID(WEBVTTPARSERWRAPPER_CID),
QueryInterface: XPCOMUtils.generateQI([Ci.nsIWebVTTParserWrapper]),
classInfo: XPCOMUtils.generateCI({
classID: WEBVTTPARSERWRAPPER_CID,
contractID: WEBVTTPARSERWRAPPER_CONTRACTID,
interfaces: [Ci.nsIWebVTTParserWrapper]
})
};
this.NSGetFactory = XPCOMUtils.generateNSGetFactory([WebVTTParserWrapper]);
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