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       1             : /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2             : /* vim: set ts=8 sts=2 et sw=2 tw=80: */
       3             : /* This Source Code Form is subject to the terms of the Mozilla Public
       4             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       5             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
       6             : 
       7             : #ifndef mozilla_dom_SourceBufferList_h_
       8             : #define mozilla_dom_SourceBufferList_h_
       9             : 
      10             : #include "SourceBuffer.h"
      11             : #include "js/RootingAPI.h"
      12             : #include "mozilla/Assertions.h"
      13             : #include "mozilla/Attributes.h"
      14             : #include "mozilla/DOMEventTargetHelper.h"
      15             : #include "nsCycleCollectionNoteChild.h"
      16             : #include "nsCycleCollectionParticipant.h"
      17             : #include "nsISupports.h"
      18             : #include "nsTArray.h"
      19             : 
      20             : struct JSContext;
      21             : class JSObject;
      22             : 
      23             : namespace mozilla {
      24             : 
      25             : template <typename T> class AsyncEventRunner;
      26             : 
      27             : namespace dom {
      28             : 
      29             : class MediaSource;
      30             : 
      31             : class SourceBufferList final : public DOMEventTargetHelper
      32             : {
      33             : public:
      34             :   /** WebIDL Methods. */
      35             :   SourceBuffer* IndexedGetter(uint32_t aIndex, bool& aFound);
      36             : 
      37             :   uint32_t Length();
      38             : 
      39           0 :   IMPL_EVENT_HANDLER(addsourcebuffer);
      40           0 :   IMPL_EVENT_HANDLER(removesourcebuffer);
      41             : 
      42             :   /** End WebIDL methods. */
      43             : 
      44             :   NS_DECL_ISUPPORTS_INHERITED
      45           0 :   NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(SourceBufferList,
      46             :                                            DOMEventTargetHelper)
      47             : 
      48             :   explicit SourceBufferList(MediaSource* aMediaSource);
      49             : 
      50             :   MediaSource* GetParentObject() const;
      51             : 
      52             :   JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
      53             : 
      54             :   // Append a SourceBuffer and fire "addsourcebuffer" at the list.
      55             :   void Append(SourceBuffer* aSourceBuffer);
      56             : 
      57             :   // Remove a SourceBuffer and fire "removesourcebuffer" at the list.
      58             :   void Remove(SourceBuffer* aSourceBuffer);
      59             : 
      60             :   // Returns true if aSourceBuffer is present in the list.
      61             :   bool Contains(SourceBuffer* aSourceBuffer);
      62             : 
      63             :   // Remove all SourceBuffers and fire a single "removesourcebuffer" at the list.
      64             :   void Clear();
      65             : 
      66             :   // True if list has zero entries.
      67             :   bool IsEmpty();
      68             : 
      69             :   // Returns true if updating is true on any SourceBuffers in the list.
      70             :   bool AnyUpdating();
      71             : 
      72             :   // Runs the range removal steps from the MSE specification on each SourceBuffer.
      73             :   void RangeRemoval(double aStart, double aEnd);
      74             : 
      75             :   // Mark all SourceBuffers input buffers as ended.
      76             :   void Ended();
      77             : 
      78             :   // Returns the highest end time of any of the Sourcebuffers.
      79             :   double GetHighestBufferedEndTime();
      80             : 
      81             :   // Append a SourceBuffer to the list. No event is fired.
      82             :   void AppendSimple(SourceBuffer* aSourceBuffer);
      83             : 
      84             :   // Remove all SourceBuffers from mSourceBuffers.
      85             :   //  No event is fired and no action is performed on the sourcebuffers.
      86             :   void ClearSimple();
      87             : 
      88             :   double HighestStartTime();
      89             :   double HighestEndTime();
      90             : 
      91             : private:
      92             :   ~SourceBufferList();
      93             : 
      94             :   friend class AsyncEventRunner<SourceBufferList>;
      95             :   void DispatchSimpleEvent(const char* aName);
      96             :   void QueueAsyncSimpleEvent(const char* aName);
      97             : 
      98             :   RefPtr<MediaSource> mMediaSource;
      99             :   nsTArray<RefPtr<SourceBuffer> > mSourceBuffers;
     100             :   const RefPtr<AbstractThread> mAbstractMainThread;
     101             : };
     102             : 
     103             : } // namespace dom
     104             : 
     105             : } // namespace mozilla
     106             : 
     107             : #endif /* mozilla_dom_SourceBufferList_h_ */