src/third_party/WebKit/Source/core/html/track/AudioTrack.cpp

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "config.h"
   6 #include "core/html/track/AudioTrack.h"
   7
   8 #include "core/html/HTMLMediaElement.h"
   9
  10 namespace blink {
  11
  12 AudioTrack::AudioTrack(const String& id, const AtomicString& kind, const AtomicString& label, const AtomicString& language, bool enabled)
  13     : TrackBase(TrackBase::AudioTrack, label, language, id)
  14     , m_enabled(enabled)
  15 {
  16     setKind(kind);
  17 }
  18
  19 AudioTrack::~AudioTrack()
  20 {
  21 }
  22
  23 void AudioTrack::setEnabled(bool enabled)
  24 {
  25     if (enabled == m_enabled)
  26         return;
  27
  28     m_enabled = enabled;
  29
  30     if (mediaElement())
  31         mediaElement()->audioTrackChanged();
  32 }
  33
  34 const AtomicString& AudioTrack::alternativeKeyword()
  35 {
  36     DEFINE_STATIC_LOCAL(const AtomicString, keyword, ("alternative", AtomicString::ConstructFromLiteral));
  37     return keyword;
  38 }
  39
  40 const AtomicString& AudioTrack::descriptionsKeyword()
  41 {
  42     DEFINE_STATIC_LOCAL(const AtomicString, keyword, ("descriptions", AtomicString::ConstructFromLiteral));
  43     return keyword;
  44 }
  45
  46 const AtomicString& AudioTrack::mainKeyword()
  47 {
  48     DEFINE_STATIC_LOCAL(const AtomicString, keyword, ("main", AtomicString::ConstructFromLiteral));
  49     return keyword;
  50 }
  51
  52 const AtomicString& AudioTrack::mainDescriptionsKeyword()
  53 {
  54     DEFINE_STATIC_LOCAL(const AtomicString, keyword, ("main-desc", AtomicString::ConstructFromLiteral));
  55     return keyword;
  56 }
  57
  58 const AtomicString& AudioTrack::translationKeyword()
  59 {
  60     DEFINE_STATIC_LOCAL(const AtomicString, keyword, ("translation", AtomicString::ConstructFromLiteral));
  61     return keyword;
  62 }
  63
  64 const AtomicString& AudioTrack::commentaryKeyword()
  65 {
  66     DEFINE_STATIC_LOCAL(const AtomicString, keyword, ("commentary", AtomicString::ConstructFromLiteral));
  67     return keyword;
  68 }
  69
  70 bool AudioTrack::isValidKind(const AtomicString& kind) const
  71 {
  72     return (kind == alternativeKeyword())
  73         || (kind == descriptionsKeyword())
  74         || (kind == mainKeyword())
  75         || (kind == mainDescriptionsKeyword())
  76         || (kind == translationKeyword())
  77         || (kind == commentaryKeyword());
  78 }
  79
  80 AtomicString AudioTrack::defaultKind() const
  81 {
  82     return emptyAtom;
  83 }
  84
  85 }