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/*
* Copyright (C) 2010 Google Inc. All Rights Reserved.
* Copyright (C) 2013 Apple 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. ``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
* 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.
*
*/
#pragma once
#include "Event.h"
#include "EventQueue.h"
#include <memory>
#include <wtf/HashSet.h>
#include <wtf/ListHashSet.h>
namespace WebCore {
class Document;
class Node;
class DocumentEventQueue final : public EventQueue {
public:
explicit DocumentEventQueue(Document&);
virtual ~DocumentEventQueue();
bool enqueueEvent(Ref<Event>&&) override;
bool cancelEvent(Event&) override;
void close() override;
void enqueueOrDispatchScrollEvent(Node&);
void enqueueScrollEvent(EventTarget&, Event::CanBubble, Event::IsCancelable);
void enqueueResizeEvent(EventTarget&, Event::CanBubble, Event::IsCancelable);
private:
void pendingEventTimerFired();
void dispatchEvent(Event&);
class Timer;
Document& m_document;
std::unique_ptr<Timer> m_pendingEventTimer;
ListHashSet<RefPtr<Event>> m_queuedEvents;
HashSet<EventTarget*> m_targetsWithQueuedScrollEvents;
HashSet<EventTarget*> m_targetsWithQueuedResizeEvents;
bool m_isClosed;
};
} // namespace WebCore