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/*
* Copyright (C) 2014-2025 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.
*/
#pragma once
#include "PlatformMediaSessionInterface.h"
namespace WebCore {
class PlatformMediaSession : public PlatformMediaSessionInterface {
WTF_MAKE_TZONE_ALLOCATED(PlatformMediaSession);
public:
static Ref<PlatformMediaSession> create(PlatformMediaSessionClient& client)
{
return adoptRef(*new PlatformMediaSession(client));
}
virtual ~PlatformMediaSession();
void setActive(bool) final;
State state() const final { return m_state; }
void setState(State) final;
State stateToRestore() const final { return m_stateToRestore; }
InterruptionType interruptionType() const final;
void clientCharacteristicsChanged(bool) override;
void beginInterruption(InterruptionType) final;
void endInterruption(OptionSet<EndInterruptionFlags>) final;
void clientWillBeginAutoplaying() override;
bool clientWillBeginPlayback() override;
bool clientWillPausePlayback() override;
void clientWillBeDOMSuspended() final;
void pauseSession() final;
void stopSession() final;
void didReceiveRemoteControlCommand(RemoteControlCommandType, const RemoteCommandArgument&) override;
bool isPlayingToWirelessPlaybackTarget() const override { return m_isPlayingToWirelessPlaybackTarget; }
void isPlayingToWirelessPlaybackTargetChanged(bool) final;
bool blockedBySystemInterruption() const final;
bool activeAudioSessionRequired() const final;
void canProduceAudioChanged() final;
bool preparingToPlay() const final { return m_preparingToPlay; }
#if !RELEASE_LOG_DISABLED
const Logger& logger() const override;
uint64_t logIdentifier() const override;
ASCIILiteral logClassName() const override { return "PlatformMediaSession"_s; }
WTFLogChannel& logChannel() const override;
#endif
bool canPlayConcurrently(const PlatformMediaSessionInterface&) const final;
WeakPtr<PlatformMediaSessionInterface> selectBestMediaSession(const Vector<WeakPtr<PlatformMediaSessionInterface>>&, PlaybackControlsPurpose) final;
bool isActiveNowPlayingSession() const final { return m_isActiveNowPlayingSession; }
void setActiveNowPlayingSession(bool) final;
#if !RELEASE_LOG_DISABLED
String description() const override;
#endif
protected:
PlatformMediaSession(PlatformMediaSessionClient& client)
: PlatformMediaSessionInterface(client)
{
}
private:
bool processClientWillPausePlayback(DelayCallingUpdateNowPlaying);
size_t activeInterruptionCount() const;
State m_state { State::Idle };
State m_stateToRestore { State::Idle };
struct Interruption {
InterruptionType type { InterruptionType::NoInterruption };
bool ignored { false };
};
Vector<Interruption> m_interruptionStack;
bool m_active { false };
bool m_notifyingClient { false };
bool m_isPlayingToWirelessPlaybackTarget { false };
bool m_preparingToPlay { false };
bool m_isActiveNowPlayingSession { false };
};
String convertEnumerationToString(PlatformMediaSession::State);
String convertEnumerationToString(PlatformMediaSession::InterruptionType);
String convertEnumerationToString(PlatformMediaSession::MediaType);
WEBCORE_EXPORT String convertEnumerationToString(PlatformMediaSession::RemoteControlCommandType);
} // namespace WebCore
namespace WTF {
template<typename Type>
struct LogArgument;
template <>
struct LogArgument<WebCore::PlatformMediaSession::State> {
static String toString(const WebCore::PlatformMediaSession::State state)
{
return convertEnumerationToString(state);
}
};
template <>
struct LogArgument<WebCore::PlatformMediaSession::InterruptionType> {
static String toString(const WebCore::PlatformMediaSession::InterruptionType state)
{
return convertEnumerationToString(state);
}
};
template <>
struct LogArgument<WebCore::PlatformMediaSession::RemoteControlCommandType> {
static String toString(const WebCore::PlatformMediaSession::RemoteControlCommandType command)
{
return convertEnumerationToString(command);
}
};
template <>
struct LogArgument<WebCore::PlatformMediaSession::MediaType> {
static String toString(const WebCore::PlatformMediaSession::MediaType mediaType)
{
return convertEnumerationToString(mediaType);
}
};
} // namespace WTF
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