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/*
* Copyright (C) 2013 University of Washington. All rights reserved.
* Copyright (C) 2014 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 THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
* HOLDER 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.
*/
#ifndef EventLoopInputDispatcher_h
#define EventLoopInputDispatcher_h
#if ENABLE(WEB_REPLAY)
#include "EventLoopInput.h"
#include "ReplayingInputCursor.h"
#include "Timer.h"
#include <wtf/Noncopyable.h>
#include <wtf/Vector.h>
#include <wtf/text/WTFString.h>
namespace WebCore {
class Page;
enum class DispatchSpeed {
RealTime,
FastForward,
};
class EventLoopInputDispatcherClient {
public:
EventLoopInputDispatcherClient() { }
virtual ~EventLoopInputDispatcherClient() { }
virtual void willDispatchInput(const EventLoopInputBase&) =0;
virtual void didDispatchInput(const EventLoopInputBase&) =0;
virtual void didDispatchFinalInput() =0;
};
class EventLoopInputDispatcher {
WTF_MAKE_NONCOPYABLE(EventLoopInputDispatcher);
public:
EventLoopInputDispatcher(Page&, ReplayingInputCursor&, EventLoopInputDispatcherClient*);
void run();
void pause();
void setDispatchSpeed(DispatchSpeed speed) { m_speed = speed; }
DispatchSpeed dispatchSpeed() const { return m_speed; }
bool isRunning() const { return m_running; }
bool isDispatching() const { return m_dispatching; }
private:
void dispatchInputSoon();
void dispatchInput();
void timerFired();
Page& m_page;
EventLoopInputDispatcherClient* m_client;
ReplayingInputCursor& m_cursor;
Timer m_timer;
// This data is valid when an event loop input is presently dispatching.
EventLoopInputData m_currentWork;
// Whether the dispatcher is currently calling out to an inputs' dispatch() method.
bool m_dispatching {false};
// Whether the dispatcher is waiting to dispatch or actively dispatching inputs.
bool m_running {false};
DispatchSpeed m_speed;
// The time at which the last input dispatch() method was called.
double m_previousDispatchStartTime {0.0};
// The timestamp specified by the last dispatched input.
double m_previousInputTimestamp {0.0};
};
} // namespace WebCore
#endif // ENABLE(WEB_REPLAY)
#endif // EventLoopInputDispatcher_h
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