| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "third_party/blink/renderer/modules/mediasource/track_default.h" |
| |
| #include "third_party/blink/renderer/bindings/core/v8/to_v8_for_core.h" |
| #include "third_party/blink/renderer/core/html/track/audio_track.h" |
| #include "third_party/blink/renderer/core/html/track/text_track.h" |
| #include "third_party/blink/renderer/core/html/track/video_track.h" |
| #include "third_party/blink/renderer/platform/bindings/exception_state.h" |
| #include "third_party/blink/renderer/platform/bindings/script_state.h" |
| |
| namespace blink { |
| |
| AtomicString TrackDefault::AudioKeyword() { |
| return "audio"; |
| } |
| |
| AtomicString TrackDefault::VideoKeyword() { |
| return "video"; |
| } |
| |
| AtomicString TrackDefault::TextKeyword() { |
| return "text"; |
| } |
| |
| ScriptValue TrackDefault::kinds(ScriptState* script_state) const { |
| return ScriptValue(script_state->GetIsolate(), ToV8(kinds_, script_state)); |
| } |
| |
| TrackDefault* TrackDefault::Create(const AtomicString& type, |
| const String& language, |
| const String& label, |
| const Vector<String>& kinds, |
| const String& byte_stream_track_id, |
| ExceptionState& exception_state) { |
| // Per 11 Nov 2014 Editor's Draft |
| // https://dvcs.w3.org/hg/html-media/raw-file/tip/media-source/media-source.html#idl-def-TrackDefault |
| // with expectation that |
| // https://www.w3.org/Bugs/Public/show_bug.cgi?id=27352 will be fixed soon: |
| // When this method is invoked, the user agent must run the following steps: |
| // 1. if |language| is not an empty string and |language| is not a BCP 47 |
| // language tag, then throw an INVALID_ACCESS_ERR and abort these steps. |
| // FIXME: Implement BCP 47 language tag validation. |
| |
| if (type == AudioKeyword()) { |
| // 2.1. If |type| equals "audio": |
| // If any string in |kinds| contains a value that is not listed as |
| // applying to audio in the kind categories table, then throw a |
| // TypeError and abort these steps. |
| for (const String& kind : kinds) { |
| if (!AudioTrack::IsValidKindKeyword(kind)) { |
| exception_state.ThrowTypeError("Invalid audio track default kind '" + |
| kind + "'"); |
| return nullptr; |
| } |
| } |
| } else if (type == VideoKeyword()) { |
| // 2.2. If |type| equals "video": |
| // If any string in |kinds| contains a value that is not listed as |
| // applying to video in the kind categories table, then throw a |
| // TypeError and abort these steps. |
| for (const String& kind : kinds) { |
| if (!VideoTrack::IsValidKindKeyword(kind)) { |
| exception_state.ThrowTypeError("Invalid video track default kind '" + |
| kind + "'"); |
| return nullptr; |
| } |
| } |
| } else if (type == TextKeyword()) { |
| // 2.3. If |type| equals "text": |
| // If any string in |kinds| contains a value that is not listed in the |
| // text track kind list, then throw a TypeError and abort these |
| // steps. |
| for (const String& kind : kinds) { |
| if (!TextTrack::IsValidKindKeyword(kind)) { |
| exception_state.ThrowTypeError("Invalid text track default kind '" + |
| kind + "'"); |
| return nullptr; |
| } |
| } |
| } else { |
| NOTREACHED(); // IDL enforcement should prevent this case. |
| return nullptr; |
| } |
| |
| // 3. Set the type attribute on this new object to |type|. |
| // 4. Set the language attribute on this new object to |language|. |
| // 5. Set the label attribute on this new object to |label|. |
| // 6. Set the kinds attribute on this new object to |kinds|. |
| // 7. Set the byteStreamTrackID attribute on this new object to |
| // |byteStreamTrackID|. |
| // These steps are done as constructor initializers. |
| return MakeGarbageCollected<TrackDefault>(type, language, label, kinds, |
| byte_stream_track_id); |
| } |
| |
| TrackDefault::~TrackDefault() = default; |
| |
| TrackDefault::TrackDefault(const AtomicString& type, |
| const String& language, |
| const String& label, |
| const Vector<String>& kinds, |
| const String& byte_stream_track_id) |
| : type_(type), |
| byte_stream_track_id_(byte_stream_track_id), |
| language_(language), |
| label_(label), |
| kinds_(kinds) {} |
| |
| } // namespace blink |