Home | History | Annotate | Download | only in mediastream 
      1 /*
      2  * Copyright (C) 2014 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 GOOGLE INC. ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL GOOGLE INC. OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #ifndef MediaDevicesRequest_h
     27 #define MediaDevicesRequest_h
     28 
     29 #include "core/dom/ActiveDOMObject.h"
     30 #include "modules/mediastream/MediaDeviceInfo.h"
     31 #include "modules/mediastream/MediaDeviceInfoCallback.h"
     32 #include "platform/heap/Handle.h"
     33 #include "wtf/PassOwnPtr.h"
     34 #include "wtf/PassRefPtr.h"
     35 #include "wtf/RefCounted.h"
     36 
     37 namespace WebCore {
     38 
     39 class Document;
     40 class ExceptionState;
     41 class MediaStreamDescriptor;
     42 class UserMediaController;
     43 
     44 class MediaDevicesRequest FINAL : public RefCountedWillBeRefCountedGarbageCollected<MediaDevicesRequest>, public ActiveDOMObject {
     45 public:
     46     static PassRefPtrWillBeRawPtr<MediaDevicesRequest> create(ExecutionContext*, UserMediaController*, PassOwnPtr<MediaDeviceInfoCallback>, ExceptionState&);
     47     virtual ~MediaDevicesRequest();
     48 
     49     MediaDeviceInfoCallback* callback() const { return m_callback.get(); }
     50     Document* ownerDocument();
     51 
     52     void start();
     53 
     54     void succeed(const MediaDeviceInfoVector&);
     55 
     56     // ActiveDOMObject
     57     virtual void stop() OVERRIDE;
     58 
     59     void trace(Visitor*) { }
     60 
     61 private:
     62     MediaDevicesRequest(ExecutionContext*, UserMediaController*, PassOwnPtr<MediaDeviceInfoCallback>);
     63 
     64     UserMediaController* m_controller;
     65 
     66     OwnPtr<MediaDeviceInfoCallback> m_callback;
     67 };
     68 
     69 } // namespace WebCore
     70 
     71 #endif // MediaDevicesRequest_h
     72