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/*
* Copyright (C) 2013-2014 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 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 MediaSessionManager_h
#define MediaSessionManager_h
#include "AudioHardwareListener.h"
#include "MediaSession.h"
#include "RemoteCommandListener.h"
#include "Settings.h"
#include "SystemSleepListener.h"
#include <map>
#include <wtf/Vector.h>
namespace WebCore {
class HTMLMediaElement;
class MediaSession;
class RemoteCommandListener;
class MediaSessionManager : private RemoteCommandListenerClient, private SystemSleepListener::Client, private AudioHardwareListener::Client {
public:
WEBCORE_EXPORT static MediaSessionManager& sharedManager();
virtual ~MediaSessionManager() { }
bool has(MediaSession::MediaType) const;
int count(MediaSession::MediaType) const;
bool activeAudioSessionRequired() const;
WEBCORE_EXPORT void beginInterruption(MediaSession::InterruptionType);
WEBCORE_EXPORT void endInterruption(MediaSession::EndInterruptionFlags);
WEBCORE_EXPORT void applicationWillEnterForeground() const;
WEBCORE_EXPORT void applicationWillEnterBackground() const;
void wirelessRoutesAvailableChanged();
enum SessionRestrictionFlags {
NoRestrictions = 0,
ConcurrentPlaybackNotPermitted = 1 << 0,
InlineVideoPlaybackRestricted = 1 << 1,
MetadataPreloadingNotPermitted = 1 << 2,
AutoPreloadingNotPermitted = 1 << 3,
BackgroundPlaybackNotPermitted = 1 << 4,
};
typedef unsigned SessionRestrictions;
WEBCORE_EXPORT void addRestriction(MediaSession::MediaType, SessionRestrictions);
WEBCORE_EXPORT void removeRestriction(MediaSession::MediaType, SessionRestrictions);
WEBCORE_EXPORT SessionRestrictions restrictions(MediaSession::MediaType);
virtual void resetRestrictions();
virtual void sessionWillBeginPlayback(MediaSession&);
virtual void sessionWillEndPlayback(MediaSession&);
bool sessionRestrictsInlineVideoPlayback(const MediaSession&) const;
#if ENABLE(IOS_AIRPLAY)
virtual bool hasWirelessTargetsAvailable() { return false; }
virtual void startMonitoringAirPlayRoutes() { }
virtual void stopMonitoringAirPlayRoutes() { }
#endif
protected:
friend class MediaSession;
explicit MediaSessionManager();
void addSession(MediaSession&);
void removeSession(MediaSession&);
void setCurrentSession(MediaSession&);
MediaSession* currentSession();
private:
friend class Internals;
void updateSessionState();
// RemoteCommandListenerClient
WEBCORE_EXPORT virtual void didReceiveRemoteControlCommand(MediaSession::RemoteControlCommandType) override;
// AudioHardwareListenerClient
virtual void audioHardwareDidBecomeActive() override { }
virtual void audioHardwareDidBecomeInactive() override { }
virtual void audioOutputDeviceChanged() override;
// SystemSleepListener
virtual void systemWillSleep() override;
virtual void systemDidWake() override;
SessionRestrictions m_restrictions[MediaSession::WebAudio + 1];
Vector<MediaSession*> m_sessions;
std::unique_ptr<RemoteCommandListener> m_remoteCommandListener;
std::unique_ptr<SystemSleepListener> m_systemSleepListener;
RefPtr<AudioHardwareListener> m_audioHardwareListener;
bool m_interrupted;
};
}
#endif // MediaSessionManager_h
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