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/*
* Copyright (C) 2011 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 COMPUTER, 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 COMPUTER, 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.
*/
#ifndef MediaController_h
#define MediaController_h
#include "core/events/EventTarget.h"
#include "core/html/HTMLMediaElement.h"
#include "wtf/LinkedHashSet.h"
#include "wtf/PassRefPtr.h"
#include "wtf/RefCounted.h"
namespace blink {
class Clock;
class ExceptionState;
class ExecutionContext;
class GenericEventQueue;
class MediaController final : public EventTargetWithInlineData, public RefCountedWillBeNoBase<MediaController> {
DEFINE_WRAPPERTYPEINFO();
REFCOUNTED_EVENT_TARGET(MediaController);
public:
static PassRefPtrWillBeRawPtr<MediaController> create(ExecutionContext*);
virtual ~MediaController();
void addMediaElement(HTMLMediaElement*);
void removeMediaElement(HTMLMediaElement*);
PassRefPtrWillBeRawPtr<TimeRanges> buffered() const;
PassRefPtrWillBeRawPtr<TimeRanges> seekable() const;
PassRefPtrWillBeRawPtr<TimeRanges> played();
double duration() const;
double currentTime() const;
void setCurrentTime(double);
bool paused() const { return m_paused; }
void play();
void pause();
void unpause();
double defaultPlaybackRate() const { return m_defaultPlaybackRate; }
void setDefaultPlaybackRate(double);
double playbackRate() const;
void setPlaybackRate(double);
double volume() const { return m_volume; }
void setVolume(double, ExceptionState&);
bool muted() const { return m_muted; }
void setMuted(bool);
typedef HTMLMediaElement::ReadyState ReadyState;
ReadyState readyState() const { return m_readyState; }
enum PlaybackState { WAITING, PLAYING, ENDED };
const AtomicString& playbackState() const;
bool isRestrained() const;
bool isBlocked() const;
#if !ENABLE(OILPAN)
void clearExecutionContext() { m_executionContext = nullptr; }
#endif
virtual void trace(Visitor*) override;
private:
MediaController(ExecutionContext*);
void reportControllerState();
void updateReadyState();
void updatePlaybackState();
void updateMediaElements();
void bringElementUpToSpeed(HTMLMediaElement*);
void scheduleEvent(const AtomicString& eventName);
void clearPositionTimerFired(Timer<MediaController>*);
bool hasEnded() const;
void scheduleTimeupdateEvent();
void timeupdateTimerFired(Timer<MediaController>*);
void startTimeupdateTimer();
// EventTarget
virtual const AtomicString& interfaceName() const override;
virtual ExecutionContext* executionContext() const override { return m_executionContext; }
friend class HTMLMediaElement;
friend class MediaControllerEventListener;
// FIXME: A MediaController should ideally keep an otherwise
// unreferenced slaved media element alive. When Oilpan is
// enabled by default, consider making the hash set references
// strong to accomplish that. crbug.com/383072
typedef WillBeHeapLinkedHashSet<RawPtrWillBeWeakMember<HTMLMediaElement>> MediaElementSequence;
MediaElementSequence m_mediaElements;
bool m_paused;
double m_defaultPlaybackRate;
double m_volume;
mutable double m_position;
bool m_muted;
ReadyState m_readyState;
PlaybackState m_playbackState;
OwnPtrWillBeMember<GenericEventQueue> m_pendingEventsQueue;
mutable Timer<MediaController> m_clearPositionTimer;
OwnPtr<Clock> m_clock;
RawPtrWillBeWeakMember<ExecutionContext> m_executionContext;
Timer<MediaController> m_timeupdateTimer;
double m_previousTimeupdateTime;
};
} // namespace blink
#endif // MediaController_h
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