1/* 2 * Copyright (C) 2011 Ericsson AB. All rights reserved. 3 * Copyright (C) 2012 Google Inc. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer 13 * in the documentation and/or other materials provided with the 14 * distribution. 15 * 3. Neither the name of Ericsson nor the names of its contributors 16 * may be used to endorse or promote products derived from this 17 * software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32#ifndef MediaStreamCenter_h 33#define MediaStreamCenter_h 34 35#if ENABLE(MEDIA_STREAM) 36 37#include <wtf/PassRefPtr.h> 38#include <wtf/text/WTFString.h> 39 40namespace WebCore { 41 42class MediaStreamComponent; 43class MediaStreamDescriptor; 44class MediaStreamSourcesQueryClient; 45 46class MediaStreamCenter { 47public: 48 virtual ~MediaStreamCenter(); 49 50 static MediaStreamCenter& instance(); 51 52 virtual void queryMediaStreamSources(PassRefPtr<MediaStreamSourcesQueryClient>) = 0; 53 54 // FIXME: add a way to mute a MediaStreamSource from the WebKit API layer 55 56 // Calls from the DOM objects to notify the platform 57 virtual void didSetMediaStreamTrackEnabled(MediaStreamDescriptor*, MediaStreamComponent*) = 0; 58 virtual bool didAddMediaStreamTrack(MediaStreamDescriptor*, MediaStreamComponent*) = 0; 59 virtual bool didRemoveMediaStreamTrack(MediaStreamDescriptor*, MediaStreamComponent*) = 0; 60 virtual void didStopLocalMediaStream(MediaStreamDescriptor*) = 0; 61 virtual void didCreateMediaStream(MediaStreamDescriptor*) = 0; 62 63protected: 64 MediaStreamCenter(); 65 66 void endLocalMediaStream(MediaStreamDescriptor*); 67 void addMediaStreamTrack(MediaStreamDescriptor*, MediaStreamComponent*); 68 void removeMediaStreamTrack(MediaStreamDescriptor*, MediaStreamComponent*); 69}; 70 71} // namespace WebCore 72 73#endif // ENABLE(MEDIA_STREAM) 74 75#endif // MediaStreamCenter_h 76