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/*
* 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 "core/CoreExport.h"
#include "core/dom/FrameRequestCallbackCollection.h"
#include "platform/heap/Handle.h"
#include "wtf/ListHashSet.h"
#include "wtf/Vector.h"
#include "wtf/text/AtomicString.h"
#include "wtf/text/StringImpl.h"
namespace blink {
class Document;
class Event;
class EventTarget;
class FrameRequestCallback;
class MediaQueryListListener;
class CORE_EXPORT ScriptedAnimationController
: public GarbageCollectedFinalized<ScriptedAnimationController> {
public:
static ScriptedAnimationController* create(Document* document) {
return new ScriptedAnimationController(document);
}
DECLARE_TRACE();
void clearDocumentPointer() { m_document = nullptr; }
// Animation frame callbacks are used for requestAnimationFrame().
typedef int CallbackId;
CallbackId registerCallback(FrameRequestCallback*);
void cancelCallback(CallbackId);
// Animation frame events are used for resize events, scroll events, etc.
void enqueueEvent(Event*);
void enqueuePerFrameEvent(Event*);
// Animation frame tasks are used for Fullscreen.
void enqueueTask(std::unique_ptr<WTF::Closure>);
// Used for the MediaQueryList change event.
void enqueueMediaQueryChangeListeners(
HeapVector<Member<MediaQueryListListener>>&);
// Invokes callbacks, dispatches events, etc. The order is defined by HTML:
// https://html.spec.whatwg.org/multipage/webappapis.html#event-loop-processing-model
void serviceScriptedAnimations(double monotonicTimeNow);
void suspend();
void resume();
void dispatchEventsAndCallbacksForPrinting();
private:
explicit ScriptedAnimationController(Document*);
void scheduleAnimationIfNeeded();
void runTasks();
void dispatchEvents(
const AtomicString& eventInterfaceFilter = AtomicString());
void executeCallbacks(double monotonicTimeNow);
void callMediaQueryListListeners();
bool hasScheduledItems() const;
Member<Document> m_document;
FrameRequestCallbackCollection m_callbackCollection;
int m_suspendCount;
Vector<std::unique_ptr<WTF::Closure>> m_taskQueue;
HeapVector<Member<Event>> m_eventQueue;
HeapListHashSet<std::pair<Member<const EventTarget>, const StringImpl*>>
m_perFrameEvents;
using MediaQueryListListeners =
HeapListHashSet<Member<MediaQueryListListener>>;
MediaQueryListListeners m_mediaQueryListListeners;
};
} // namespace blink
#endif // ScriptedAnimationController_h
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