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/*
* 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. 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 "MediaSession.h"
#include "Settings.h"
#include <map>
#include <wtf/Vector.h>
namespace WebCore {
class HTMLMediaElement;
class MediaSession;
class MediaSessionManager {
public:
static MediaSessionManager& sharedManager();
virtual ~MediaSessionManager() { }
bool has(MediaSession::MediaType) const;
int count(MediaSession::MediaType) const;
void beginInterruption();
void endInterruption(MediaSession::EndInterruptionFlags);
enum SessionRestrictionFlags {
NoRestrictions = 0,
ConcurrentPlaybackNotPermitted = 1 << 0,
InlineVideoPlaybackRestricted = 1 << 1,
MetadataPreloadingNotPermitted = 1 << 2,
AutoPreloadingNotPermitted = 1 << 3,
};
typedef unsigned SessionRestrictions;
void addRestriction(MediaSession::MediaType, SessionRestrictions);
void removeRestriction(MediaSession::MediaType, SessionRestrictions);
SessionRestrictions restrictions(MediaSession::MediaType);
virtual void resetRestrictions();
void sessionWillBeginPlayback(const MediaSession&) const;
bool sessionRestrictsInlineVideoPlayback(const MediaSession&) const;
protected:
friend class MediaSession;
explicit MediaSessionManager();
void addSession(MediaSession&);
void removeSession(MediaSession&);
private:
void updateSessionState();
SessionRestrictions m_restrictions[MediaSession::WebAudio + 1];
Vector<MediaSession*> m_sessions;
int m_interruptions;
};
}
#endif // MediaSessionManager_h
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