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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.
*/
#include "config.h"
#include "MediaSessionManager.h"
#include "MediaSession.h"
namespace WebCore {
#if !PLATFORM(IOS)
MediaSessionManager& MediaSessionManager::sharedManager()
{
DEFINE_STATIC_LOCAL(MediaSessionManager, manager, ());
return manager;
}
#endif
MediaSessionManager::MediaSessionManager()
: m_interruptions(0)
{
resetRestrictions();
}
void MediaSessionManager::resetRestrictions()
{
m_restrictions[MediaSession::Video] = NoRestrictions;
m_restrictions[MediaSession::Audio] = NoRestrictions;
m_restrictions[MediaSession::WebAudio] = NoRestrictions;
}
bool MediaSessionManager::has(MediaSession::MediaType type) const
{
ASSERT(type >= MediaSession::None && type <= MediaSession::WebAudio);
for (auto* session : m_sessions) {
if (session->mediaType() == type)
return true;
}
return false;
}
int MediaSessionManager::count(MediaSession::MediaType type) const
{
ASSERT(type >= MediaSession::None && type <= MediaSession::WebAudio);
int count = 0;
for (auto* session : m_sessions) {
if (session->mediaType() == type)
++count;
}
return count;
}
void MediaSessionManager::beginInterruption()
{
if (++m_interruptions > 1)
return;
for (auto* session : m_sessions)
session->beginInterruption();
}
void MediaSessionManager::endInterruption(MediaSession::EndInterruptionFlags flags)
{
ASSERT(m_interruptions > 0);
if (--m_interruptions)
return;
for (auto* session : m_sessions)
session->endInterruption(flags);
}
void MediaSessionManager::addSession(MediaSession& session)
{
m_sessions.append(&session);
session.setState(m_interruptions ? MediaSession::Interrupted : MediaSession::Running);
updateSessionState();
}
void MediaSessionManager::removeSession(MediaSession& session)
{
size_t index = m_sessions.find(&session);
ASSERT(index != notFound);
if (index == notFound)
return;
m_sessions.remove(index);
updateSessionState();
}
void MediaSessionManager::addRestriction(MediaSession::MediaType type, SessionRestrictions restriction)
{
ASSERT(type > MediaSession::None && type <= MediaSession::WebAudio);
m_restrictions[type] |= restriction;
}
void MediaSessionManager::removeRestriction(MediaSession::MediaType type, SessionRestrictions restriction)
{
ASSERT(type > MediaSession::None && type <= MediaSession::WebAudio);
m_restrictions[type] &= ~restriction;
}
MediaSessionManager::SessionRestrictions MediaSessionManager::restrictions(MediaSession::MediaType type)
{
ASSERT(type > MediaSession::None && type <= MediaSession::WebAudio);
return m_restrictions[type];
}
void MediaSessionManager::sessionWillBeginPlayback(const MediaSession& session) const
{
MediaSession::MediaType sessionType = session.mediaType();
SessionRestrictions restrictions = m_restrictions[sessionType];
if (!restrictions & ConcurrentPlaybackNotPermitted)
return;
for (auto* oneSession : m_sessions) {
if (oneSession == &session)
continue;
if (oneSession->mediaType() != sessionType)
continue;
if (restrictions & ConcurrentPlaybackNotPermitted)
oneSession->pauseSession();
}
}
bool MediaSessionManager::sessionRestrictsInlineVideoPlayback(const MediaSession& session) const
{
MediaSession::MediaType sessionType = session.mediaType();
if (sessionType != MediaSession::Video)
return false;
return m_restrictions[sessionType] & InlineVideoPlaybackRestricted;
}
#if !PLATFORM(MAC)
void MediaSessionManager::updateSessionState()
{
}
#endif
}
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