content/media/TextTrackList.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim:set ts=2 sw=2 et tw=78: */
   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_TextTrackList_h
   8 #define mozilla_dom_TextTrackList_h
   9
  10 #include "mozilla/dom/TextTrack.h"
  11 #include "nsCycleCollectionParticipant.h"
  12 #include "nsDOMEventTargetHelper.h"
  13
  14 namespace mozilla {
  15 namespace dom {
  16
  17 class TrackEvent;
  18 class TrackEventRunner;
  19
  20 class TextTrackList MOZ_FINAL : public nsDOMEventTargetHelper
  21 {
  22 public:
  23   NS_DECL_ISUPPORTS_INHERITED
  24   NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(TextTrackList, nsDOMEventTargetHelper)
  25
  26   TextTrackList(nsISupports* aGlobal);
  27
  28   virtual JSObject* WrapObject(JSContext* aCx,
  29                                JS::Handle<JSObject*> aScope) MOZ_OVERRIDE;
  30
  31   nsISupports* GetParentObject() const
  32   {
  33     return mGlobal;
  34   }
  35
  36   uint32_t Length() const
  37   {
  38     return mTextTracks.Length();
  39   }
  40
  41   // Time is in seconds.
  42   void Update(double aTime);
  43
  44   TextTrack* IndexedGetter(uint32_t aIndex, bool& aFound);
  45
  46   already_AddRefed<TextTrack> AddTextTrack(HTMLMediaElement* aMediaElement,
  47                                            TextTrackKind aKind,
  48                                            const nsAString& aLabel,
  49                                            const nsAString& aLanguage);
  50   TextTrack* GetTrackById(const nsAString& aId);
  51
  52   void AddTextTrack(TextTrack* aTextTrack) {
  53     mTextTracks.AppendElement(aTextTrack);
  54   }
  55
  56   void RemoveTextTrack(TextTrack* aTrack);
  57   void DidSeek();
  58
  59   nsresult DispatchTrackEvent(TrackEvent* aEvent);
  60
  61   IMPL_EVENT_HANDLER(addtrack)
  62   IMPL_EVENT_HANDLER(removetrack)
  63
  64 private:
  65   nsCOMPtr<nsISupports> mGlobal;
  66   nsTArray< nsRefPtr<TextTrack> > mTextTracks;
  67
  68   void CreateAndDispatchTrackEventRunner(TextTrack* aTrack,
  69                                          const nsAString& aEventName);
  70 };
  71
  72 } // namespace dom
  73 } // namespace mozilla
  74
  75 #endif // mozilla_dom_TextTrackList_h