/* * Copyright (C) 2015 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 MediaSessionInterruptionProvider_h #define MediaSessionInterruptionProvider_h #if ENABLE(MEDIA_SESSION) #include <wtf/RefCounted.h> namespace WebCore { enum class MediaSessionInterruptingCategory { Content, Transient, TransientSolo }; class MediaSessionInterruptionProviderClient { public: virtual void didReceiveStartOfInterruptionNotification(MediaSessionInterruptingCategory) = 0; virtual void didReceiveEndOfInterruptionNotification(MediaSessionInterruptingCategory) = 0; protected: virtual ~MediaSessionInterruptionProviderClient() { } }; class MediaSessionInterruptionProvider : public RefCounted<MediaSessionInterruptionProvider> { public: explicit MediaSessionInterruptionProvider(MediaSessionInterruptionProviderClient&); virtual ~MediaSessionInterruptionProvider(); // To be overriden by subclasses. virtual void beginListeningForInterruptions() = 0; virtual void stopListeningForInterruptions() = 0; MediaSessionInterruptionProviderClient& client() const { return *m_client; } private: MediaSessionInterruptionProviderClient* m_client; }; } // namespace WebCore #endif // ENABLE(MEDIA_SESSION) #endif /* MediaSessionInterruptionProvider_h */