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      1 /*
      2  * Copyright (C) 2011 Google Inc.  All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 enum TextTrackMode { "disabled",  "hidden",  "showing" };
     27 enum TextTrackKind { "subtitles",  "captions",  "descriptions",  "chapters",  "metadata" };
     28 
     29 [
     30     SetWrapperReferenceFrom=owner,
     31     WillBeGarbageCollected,
     32 ] interface TextTrack : EventTarget {
     33     readonly attribute TextTrackKind kind;
     34     readonly attribute DOMString label;
     35     readonly attribute DOMString language;
     36 
     37     readonly attribute DOMString id;
     38 
     39              attribute TextTrackMode mode;
     40 
     41     readonly attribute TextTrackCueList cues;
     42     readonly attribute TextTrackCueList activeCues;
     43 
     44     void addCue(TextTrackCue cue);
     45     [RaisesException] void removeCue(TextTrackCue cue);
     46 
     47              attribute EventHandler oncuechange;
     48 
     49     [RuntimeEnabled=WebVTTRegions] readonly attribute VTTRegionList regions;
     50     [RuntimeEnabled=WebVTTRegions] void addRegion(VTTRegion region);
     51     [RaisesException, RuntimeEnabled=WebVTTRegions] void removeRegion(VTTRegion region);
     52 };
     53