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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 "RemoteMediaSessionState.h"
#include "SharedPreferencesForWebProcess.h"
#include "WebPageProxyIdentifier.h"
#include <WebCore/MediaSessionIdentifier.h>
#include <WebCore/PageIdentifier.h>
#include <wtf/HashMap.h>
#include <wtf/TZoneMalloc.h>
#include <wtf/Vector.h>
#include <wtf/WeakListHashSet.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 WebKit {
class WebPage;
class RemoteMediaSessionManager
: public WebCore::REMOTE_MEDIA_SESSION_MANAGER_BASE_CLASS
, public IPC::MessageReceiver
, public IPC::MessageSender {
WTF_MAKE_TZONE_ALLOCATED(RemoteMediaSessionManager);
public:
static RefPtr<RemoteMediaSessionManager> create(WebPage& topPage, WebPage& localPage);
virtual ~RemoteMediaSessionManager();
void ref() const final { WebCore::REMOTE_MEDIA_SESSION_MANAGER_BASE_CLASS::ref(); }
void deref() const final { WebCore::REMOTE_MEDIA_SESSION_MANAGER_BASE_CLASS::deref(); }
protected:
RemoteMediaSessionManager(WebPage& topPage, WebPage& localPage);
// Messages
void clientShouldResumeAutoplaying(WebCore::MediaSessionIdentifier);
void clientMayResumePlayback(WebCore::MediaSessionIdentifier, bool);
void clientShouldSuspendPlayback(WebCore::MediaSessionIdentifier);
void clientSetShouldPlayToPlaybackTarget(WebCore::MediaSessionIdentifier, bool);
void clientDidReceiveRemoteControlCommand(WebCore::MediaSessionIdentifier, WebCore::PlatformMediaSessionRemoteControlCommandType, WebCore::PlatformMediaSessionRemoteCommandArgument);
void setCurrentMediaSession(std::optional<WebCore::MediaSessionIdentifier>);
#if USE(AUDIO_SESSION)
void setAudioSessionCategory(WebCore::AudioSessionCategory, WebCore::AudioSessionMode, WebCore::RouteSharingPolicy);
void setAudioSessionPreferredBufferSize(uint64_t);
void tryToSetAudioSessionActive(bool);
#endif
void didReceiveMessage(IPC::Connection&, IPC::Decoder&);
// IPC::MessageSender.
IPC::Connection* messageSenderConnection() const final;
uint64_t messageSenderDestinationID() const final;
std::optional<SharedPreferencesForWebProcess> sharedPreferencesForWebProcess() const;
private:
RemoteMediaSessionState& currentSessionState(const WebCore::PlatformMediaSessionInterface&);
RemoteMediaSessionState fullSessionState(const WebCore::PlatformMediaSessionInterface&);
void updateCachedSessionState(const WebCore::PlatformMediaSessionInterface&, RemoteMediaSessionState&);
void addSession(WebCore::PlatformMediaSessionInterface&) final;
void removeSession(WebCore::PlatformMediaSessionInterface&) final;
void setCurrentSession(WebCore::PlatformMediaSessionInterface&) final;
void sessionWillBeginPlayback(WebCore::PlatformMediaSessionInterface&, CompletionHandler<void(bool)>&&) final;
void updateSessionState() final;
void sessionStateChanged(WebCore::PlatformMediaSessionInterface&) final;
void addRestriction(WebCore::PlatformMediaSessionMediaType, WebCore::MediaSessionRestrictions) final;
void removeRestriction(WebCore::PlatformMediaSessionMediaType, WebCore::MediaSessionRestrictions) final;
void resetRestrictions() final;
RefPtr<WebCore::PlatformMediaSessionInterface> sessionWithIdentifier(WebCore::MediaSessionIdentifier);
#if PLATFORM(COCOA)
// AudioHardwareListenerClient
void audioHardwareDidBecomeActive() final;
void audioHardwareDidBecomeInactive() final;
void audioOutputDeviceChanged() final;
#endif
#if !RELEASE_LOG_DISABLED
ASCIILiteral logClassName() const final;
#endif
WeakPtr<WebPage> m_topPage;
WeakPtr<WebPage> m_localPage;
WebCore::PageIdentifier m_topPageID;
WebCore::PageIdentifier m_localPageID;
HashMap<WebCore::MediaSessionIdentifier, UniqueRef<RemoteMediaSessionState>> m_cachedSessionState;
};
#if !RELEASE_LOG_DISABLED
inline ASCIILiteral RemoteMediaSessionManager::logClassName() const { return "RemoteMediaSessionManager"_s; }
#endif
} // namespace WebKit
#endif // ENABLE(VIDEO) || ENABLE(WEB_AUDIO)
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