Web Animations: Implement the AnimationPlayer finished promise

Source/core/animation/AnimationPlayer.h

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 13 matching lines @@
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef AnimationPlayer_h
 #define AnimationPlayer_h
 
+#include "bindings/core/v8/ScriptPromise.h"
+#include "bindings/core/v8/ScriptPromiseProperty.h"
 #include "core/animation/AnimationNode.h"
 #include "core/dom/ActiveDOMObject.h"
+#include "core/dom/DOMException.h"
 #include "core/events/EventTarget.h"
 #include "platform/heap/Handle.h"
 #include "wtf/RefPtr.h"
 
 namespace blink {
 
 class AnimationTimeline;
 class ExceptionState;
 
 class AnimationPlayer final
@@ skipping 36 matching lines @@
     bool paused() const { return m_paused && !m_isPausedForTesting; }
     static const char* playStateString(AnimationPlayState);
     String playState() { return playStateString(playStateInternal()); }
     AnimationPlayState playStateInternal() const;
 
     void pause();
     void play();
     void reverse();
     void finish(ExceptionState&);
 
+    ScriptPromise finished(ScriptState*);
+
     bool playing() const { return !(playStateInternal() == Idle || limited() || m_paused || m_isPausedForTesting); }
     bool limited() const { return limited(currentTimeInternal()); }
 
     DEFINE_ATTRIBUTE_EVENT_LISTENER(finish);
 
     virtual const AtomicString& interfaceName() const override;
     virtual ExecutionContext* executionContext() const override;
     virtual bool hasPendingActivity() const override;
     virtual void stop() override;
     virtual bool dispatchEvent(PassRefPtrWillBeRawPtr<Event>) override;
@@ skipping 74 matching lines @@
     void beginUpdatingState();
     void endUpdatingState();
 
     AnimationPlayState m_playState;
     double m_playbackRate;
     double m_startTime;
     double m_holdTime;
 
     unsigned m_sequenceNumber;
 
+    typedef ScriptPromiseProperty<RawPtrWillBeMember<AnimationPlayer>, RawPtrWillBeMember<AnimationPlayer>, RefPtrWillBeMember<DOMException> > AnimationPlayerPromise;
+    PersistentWillBeMember<AnimationPlayerPromise> m_finishedPromise;
+
     RefPtrWillBeMember<AnimationNode> m_content;
     RawPtrWillBeMember<AnimationTimeline> m_timeline;
     // Reflects all pausing, including via pauseForTesting().
     bool m_paused;
     bool m_held;
     bool m_isPausedForTesting;
 
     // This indicates timing information relevant to the player's effect
     // has changed by means other than the ordinary progression of time
     bool m_outdated;
@@ skipping 33 matching lines @@
         DoNotSetCompositorPending,
     };
 
     class PlayStateUpdateScope {
         STACK_ALLOCATED();
     public:
         PlayStateUpdateScope(AnimationPlayer&, TimingUpdateReason, CompositorPendingChange = SetCompositorPending);
         ~PlayStateUpdateScope();
     private:
         RawPtrWillBeMember<AnimationPlayer> m_player;
-        AnimationPlayState m_initial;
+        AnimationPlayState m_initialPlayState;
         CompositorPendingChange m_compositorPendingChange;
     };
 
     // This mirrors the known compositor state. It is created when a compositor
     // animation is started. Updated once the start time is known and each time
     // modifications are pushed to the compositor.
     OwnPtr<CompositorState> m_compositorState;
     bool m_compositorPending;
     int m_compositorGroup;
 
     bool m_currentTimePending;
     bool m_stateIsBeingUpdated;
 
 };
 
 } // namespace blink
 
 #endif // AnimationPlayer_h