/*
* Copyright (C) 2011 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:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT 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 ScriptedAnimationController_h
#define ScriptedAnimationController_h
#include "heap/Handle.h"
#include "wtf/ListHashSet.h"
#include "wtf/RefCounted.h"
#include "wtf/RefPtr.h"
#include "wtf/Vector.h"
#include "wtf/text/StringImpl.h"
namespace WebCore {
class Document;
class Event;
class EventTarget;
class RequestAnimationFrameCallback;
class ScriptedAnimationController : public RefCounted<ScriptedAnimationController> {
public:
static PassRefPtr<ScriptedAnimationController> create(Document* document)
{
return adoptRef(new ScriptedAnimationController(document));
}
~ScriptedAnimationController();
void clearDocumentPointer() { m_document = 0; }
typedef int CallbackId;
int registerCallback(PassOwnPtr<RequestAnimationFrameCallback>);
void cancelCallback(CallbackId);
void serviceScriptedAnimations(double monotonicTimeNow);
void enqueueEvent(PassRefPtrWillBeRawPtr<Event>);
void enqueuePerFrameEvent(PassRefPtrWillBeRawPtr<Event>);
void suspend();
void resume();
private:
explicit ScriptedAnimationController(Document*);
void scheduleAnimationIfNeeded();
void dispatchEvents();
void executeCallbacks(double monotonicTimeNow);
typedef Vector<OwnPtr<RequestAnimationFrameCallback> > CallbackList;
CallbackList m_callbacks;
CallbackList m_callbacksToInvoke; // only non-empty while inside executeCallbacks
Document* m_document;
CallbackId m_nextCallbackId;
int m_suspendCount;
WillBePersistentHeapVector<RefPtrWillBeMember<Event> > m_eventQueue;
ListHashSet<std::pair<const EventTarget*, const StringImpl*> > m_perFrameEvents;
};
}
#endif // ScriptedAnimationController_h