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-rw-r--r--dom/media/webvtt/WebVTTParserWrapper.js72
1 files changed, 72 insertions, 0 deletions
diff --git a/dom/media/webvtt/WebVTTParserWrapper.js b/dom/media/webvtt/WebVTTParserWrapper.js
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+++ b/dom/media/webvtt/WebVTTParserWrapper.js
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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]);