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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "modules/mediasource/TrackDefaultList.h" | 5 #include "modules/mediasource/TrackDefaultList.h" |
| 6 | 6 |
| 7 #include "bindings/core/v8/ExceptionState.h" | 7 #include "bindings/core/v8/ExceptionState.h" |
| 8 #include "core/dom/ExceptionCode.h" | 8 #include "core/dom/ExceptionCode.h" |
| 9 #include "wtf/text/AtomicStringHash.h" | 9 #include "wtf/text/AtomicStringHash.h" |
| 10 #include "wtf/text/StringHash.h" | 10 #include "wtf/text/StringHash.h" |
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| 37 TypeAndID(trackDefault->type(), trackDefault->byteStreamTrackID()); | 37 TypeAndID(trackDefault->type(), trackDefault->byteStreamTrackID()); |
| 38 if (!typeAndIDToTrackDefaultMap.add(key, trackDefault).isNewEntry) { | 38 if (!typeAndIDToTrackDefaultMap.add(key, trackDefault).isNewEntry) { |
| 39 exceptionState.throwDOMException( | 39 exceptionState.throwDOMException( |
| 40 InvalidAccessError, "Duplicate TrackDefault type (" + key.first + | 40 InvalidAccessError, "Duplicate TrackDefault type (" + key.first + |
| 41 ") and byteStreamTrackID (" + key.second + | 41 ") and byteStreamTrackID (" + key.second + |
| 42 ")"); | 42 ")"); |
| 43 return nullptr; | 43 return nullptr; |
| 44 } | 44 } |
| 45 } | 45 } |
| 46 | 46 |
| 47 // 2. Store a shallow copy of |trackDefaults| in this new object so the values
can | 47 // 2. Store a shallow copy of |trackDefaults| in this new object so the values |
| 48 // be returned by the accessor methods. | 48 // can be returned by the accessor methods. |
| 49 // This step is done in constructor initializer. | 49 // This step is done in constructor initializer. |
| 50 return new TrackDefaultList(trackDefaults); | 50 return new TrackDefaultList(trackDefaults); |
| 51 } | 51 } |
| 52 | 52 |
| 53 TrackDefault* TrackDefaultList::item(unsigned index) const { | 53 TrackDefault* TrackDefaultList::item(unsigned index) const { |
| 54 // Per 11 Dec 2014 Editor's Draft | 54 // Per 11 Dec 2014 Editor's Draft |
| 55 // https://w3c.github.io/media-source/#trackdefaultlist | 55 // https://w3c.github.io/media-source/#trackdefaultlist |
| 56 // When this method is invoked, the user agent must run the following steps: | 56 // When this method is invoked, the user agent must run the following steps: |
| 57 // 1. If |index| is greater than or equal to the length attribute then | 57 // 1. If |index| is greater than or equal to the length attribute then |
| 58 // return undefined and abort these steps. | 58 // return undefined and abort these steps. |
| 59 if (index >= m_trackDefaults.size()) | 59 if (index >= m_trackDefaults.size()) |
| 60 return 0; | 60 return 0; |
| 61 | 61 |
| 62 // 2. Return the |index|'th TrackDefault object in the list. | 62 // 2. Return the |index|'th TrackDefault object in the list. |
| 63 return m_trackDefaults[index].get(); | 63 return m_trackDefaults[index].get(); |
| 64 } | 64 } |
| 65 | 65 |
| 66 TrackDefaultList::TrackDefaultList() {} | 66 TrackDefaultList::TrackDefaultList() {} |
| 67 | 67 |
| 68 TrackDefaultList::TrackDefaultList( | 68 TrackDefaultList::TrackDefaultList( |
| 69 const HeapVector<Member<TrackDefault>>& trackDefaults) | 69 const HeapVector<Member<TrackDefault>>& trackDefaults) |
| 70 : m_trackDefaults(trackDefaults) {} | 70 : m_trackDefaults(trackDefaults) {} |
| 71 | 71 |
| 72 DEFINE_TRACE(TrackDefaultList) { | 72 DEFINE_TRACE(TrackDefaultList) { |
| 73 visitor->trace(m_trackDefaults); | 73 visitor->trace(m_trackDefaults); |
| 74 } | 74 } |
| 75 | 75 |
| 76 } // namespace blink | 76 } // namespace blink |
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