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      1 /*
      2  * Copyright (C) 2011 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1.  Redistributions of source code must retain the above copyright
      8  *     notice, this list of conditions and the following disclaimer.
      9  * 2.  Redistributions in binary form must reproduce the above copyright
     10  *     notice, this list of conditions and the following disclaimer in the
     11  *     documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     15  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     16  * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     17  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     18  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     19  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
     20  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     21  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     22  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     23  */
     24 
     25 #include "config.h"
     26 #include "modules/mediastream/MediaStreamRegistry.h"
     27 
     28 #include "core/html/HTMLMediaElement.h"
     29 #include "modules/mediastream/MediaStream.h"
     30 #include "platform/weborigin/KURL.h"
     31 #include "wtf/MainThread.h"
     32 
     33 namespace WebCore {
     34 
     35 MediaStreamRegistry& MediaStreamRegistry::registry()
     36 {
     37     // Since WebWorkers cannot obtain MediaStream objects, we should be on the main thread.
     38     ASSERT(isMainThread());
     39     DEFINE_STATIC_LOCAL(MediaStreamRegistry, instance, ());
     40     return instance;
     41 }
     42 
     43 void MediaStreamRegistry::registerURL(SecurityOrigin*, const KURL& url, URLRegistrable* stream)
     44 {
     45     ASSERT(&stream->registry() == this);
     46     ASSERT(isMainThread());
     47     m_streamDescriptors.set(url.string(), static_cast<MediaStream*>(stream)->descriptor());
     48 }
     49 
     50 void MediaStreamRegistry::unregisterURL(const KURL& url)
     51 {
     52     ASSERT(isMainThread());
     53     m_streamDescriptors.remove(url.string());
     54 }
     55 
     56 bool MediaStreamRegistry::contains(const String& url)
     57 {
     58     ASSERT(isMainThread());
     59     return m_streamDescriptors.contains(url);
     60 }
     61 
     62 MediaStreamDescriptor* MediaStreamRegistry::lookupMediaStreamDescriptor(const String& url)
     63 {
     64     ASSERT(isMainThread());
     65     return m_streamDescriptors.get(url);
     66 }
     67 
     68 MediaStreamRegistry::MediaStreamRegistry()
     69 {
     70     HTMLMediaElement::setMediaStreamRegistry(this);
     71 }
     72 
     73 } // namespace WebCore
     74