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/*
* Copyright (C) 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. ``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
* 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
#if ENABLE(VIDEO) || ENABLE(WEB_AUDIO)
#include "MessageReceiver.h"
#include "MessageSender.h"
#include "RemoteAudioSessionConfiguration.h"
#include "WebProcessProxy.h"
#include <WebCore/AudioHardwareListener.h>
#include <WebCore/AudioSession.h>
#include <WebCore/MediaSessionIdentifier.h>
#include <WebCore/PageIdentifier.h>
#include <wtf/RefCounted.h>
#include <wtf/TZoneMalloc.h>
#if PLATFORM(IOS_FAMILY)
#include <WebCore/MediaSessionManagerIOS.h>
#define REMOTE_MEDIA_SESSION_MANAGER_BASE_CLASS MediaSessionManageriOS
#elif PLATFORM(COCOA)
#include <WebCore/MediaSessionManagerCocoa.h>
#define REMOTE_MEDIA_SESSION_MANAGER_BASE_CLASS MediaSessionManagerCocoa
#else
#include <WebCore/PlatformMediaSessionManager.h>
#define REMOTE_MEDIA_SESSION_MANAGER_BASE_CLASS PlatformMediaSessionManager
#endif
namespace WebCore {
class PlatformMediaSessionInterface;
}
namespace WebKit {
class RemoteMediaSessionManagerAudioHardwareListener;
class RemoteMediaSessionProxy;
class WebProcessProxy;
struct RemoteMediaSessionState;
class RemoteMediaSessionManagerProxy
: public WebCore::REMOTE_MEDIA_SESSION_MANAGER_BASE_CLASS
#if USE(AUDIO_SESSION)
, public WebCore::AudioSession
#endif
, public IPC::MessageReceiver
, public IPC::MessageSender {
WTF_MAKE_TZONE_ALLOCATED(RemoteMediaSessionManagerProxy);
public:
USING_CAN_MAKE_WEAKPTR(MessageReceiver);
static RefPtr<RemoteMediaSessionManagerProxy> create(WebCore::PageIdentifier, WebProcessProxy&);
virtual ~RemoteMediaSessionManagerProxy();
#if USE(AUDIO_SESSION)
void ref() const final { AudioSession::ref(); }
void deref() const final { AudioSession::deref(); }
#else
void ref() const final { ThreadSafeRefCountedAndCanMakeThreadSafeWeakPtr::ref(); }
void deref() const final { ThreadSafeRefCountedAndCanMakeThreadSafeWeakPtr::deref(); }
#endif
const Ref<WebProcessProxy> process() const { return m_process; }
void addRemoteMediaSessionManager(WebCore::PageIdentifier);
void removeRemoteMediaSessionManager(WebCore::PageIdentifier);
private:
RemoteMediaSessionManagerProxy(WebCore::PageIdentifier, WebProcessProxy&);
// Messages
void addMediaSession(RemoteMediaSessionState&&);
void removeMediaSession(RemoteMediaSessionState&&);
void setCurrentMediaSession(RemoteMediaSessionState&&);
void updateMediaSessionState();
void mediaSessionStateChanged(WebKit::RemoteMediaSessionState&&);
void mediaSessionWillBeginPlayback(RemoteMediaSessionState&&, CompletionHandler<void(bool)>&&);
void setCurrentSession(WebCore::PlatformMediaSessionInterface&) final;
void addMediaSessionRestriction(WebCore::PlatformMediaSessionMediaType, WebCore::MediaSessionRestrictions);
void removeMediaSessionRestriction(WebCore::PlatformMediaSessionMediaType, WebCore::MediaSessionRestrictions);
void resetMediaSessionRestrictions();
#if PLATFORM(COCOA)
void remoteAudioHardwareDidBecomeActive();
void remoteAudioHardwareDidBecomeInactive();
void remoteAudioOutputDeviceChanged(uint64_t bufferSizeMinimum, uint64_t bufferSizeMaximum);
#endif
#if USE(AUDIO_SESSION)
void remoteAudioConfigurationChanged(RemoteAudioSessionConfiguration&&);
// AudioSession
void setCategory(CategoryType, Mode, WebCore::RouteSharingPolicy) final;
CategoryType category() const final { return m_category; }
Mode mode() const final { return m_mode; }
WebCore::RouteSharingPolicy routeSharingPolicy() const final { return m_routeSharingPolicy; }
String routingContextUID() const final { return m_audioConfiguration.routingContextUID; }
float sampleRate() const final { return m_audioConfiguration.sampleRate; }
size_t bufferSize() const final { return m_audioConfiguration.bufferSize; }
size_t numberOfOutputChannels() const final { return m_audioConfiguration.numberOfOutputChannels; }
size_t maximumNumberOfOutputChannels() const final { return m_audioConfiguration.maximumNumberOfOutputChannels; }
size_t outputLatency() const final { return m_audioConfiguration.outputLatency; }
bool tryToSetActiveInternal(bool) final;
size_t preferredBufferSize() const final { return m_audioConfiguration.preferredBufferSize; }
void setPreferredBufferSize(size_t) final;
CategoryType categoryOverride() const final { return m_audioConfiguration.categoryOverride; }
#endif
void forEachRemoteSessionManager(NOESCAPE const Function<void(WebCore::PageIdentifier)>&);
RefPtr<WebCore::PlatformMediaSessionInterface> findAndUpdateSession(RemoteMediaSessionState&);
Ref<RemoteMediaSessionManagerAudioHardwareListener> ensureAudioHardwareListenerProxy(WebCore::AudioHardwareListener::Client&);
void didReceiveMessage(IPC::Connection&, IPC::Decoder&);
// IPC::MessageSender.
IPC::Connection* messageSenderConnection() const final;
uint64_t messageSenderDestinationID() const final;
std::optional<SharedPreferencesForWebProcess> sharedPreferencesForWebProcess() const;
#if !RELEASE_LOG_DISABLED
ASCIILiteral logClassName() const final;
#endif
const Ref<WebProcessProxy> m_process;
WebCore::PageIdentifier m_localPageID;
HashMap<WebCore::MediaSessionIdentifier, Ref<RemoteMediaSessionProxy>> m_sessionProxies;
HashSet<WebCore::PageIdentifier> m_remoteSessionManagerPages;
#if PLATFORM(COCOA)
RefPtr<RemoteMediaSessionManagerAudioHardwareListener> m_audioHardwareListenerProxy;
#endif
#if USE(AUDIO_SESSION)
CategoryType m_category { CategoryType::None };
Mode m_mode { Mode::Default };
WebCore::RouteSharingPolicy m_routeSharingPolicy { WebCore::RouteSharingPolicy::Default };
mutable RemoteAudioSessionConfiguration m_audioConfiguration;
#endif
bool m_isInterruptedForTesting { false };
bool m_isInSetCurrentSession { false };
};
#if !RELEASE_LOG_DISABLED
inline ASCIILiteral RemoteMediaSessionManagerProxy::logClassName() const { return "RemoteMediaSessionManagerProxy"_s; }
#endif
} // namespace WebKit
#endif // ENABLE(VIDEO) || ENABLE(WEB_AUDIO)
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