third_party/WebKit/Source/modules/mediastream/MediaStreamRegistry.h

/*
 * Copyright (C) 2011 Google 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 MediaStreamRegistry_h
#define MediaStreamRegistry_h

#include "core/html/URLRegistry.h"
#include "modules/ModulesExport.h"
#include "platform/heap/Handle.h"
#include "wtf/HashMap.h"
#include "wtf/text/StringHash.h"

namespace blink {

class KURL;
class MediaStreamDescriptor;

class MODULES_EXPORT MediaStreamRegistry final : public URLRegistry {
 public:
  // Returns a single instance of MediaStreamRegistry.
  static MediaStreamRegistry& registry();

  // Registers a blob URL referring to the specified stream data.
  void registerURL(SecurityOrigin*, const KURL&, URLRegistrable*) override;
  void unregisterURL(const KURL&) override;
  bool contains(const String&) override;

  MediaStreamDescriptor* lookupMediaStreamDescriptor(const String& url);

 private:
  MediaStreamRegistry();
  PersistentHeapHashMap<String, Member<MediaStreamDescriptor>>
      m_streamDescriptors;
};

}  // namespace blink

#endif  // MediaStreamRegistry_h