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      1 /*
      2  * Copyright (C) 2011 Ericsson AB. 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  *
      8  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer
     12  *    in the documentation and/or other materials provided with the
     13  *    distribution.
     14  * 3. Neither the name of Ericsson nor the names of its contributors
     15  *    may be used to endorse or promote products derived from this
     16  *    software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #ifndef UserMediaRequest_h
     32 #define UserMediaRequest_h
     33 
     34 #include "core/dom/ActiveDOMObject.h"
     35 #include "modules/mediastream/NavigatorUserMediaErrorCallback.h"
     36 #include "modules/mediastream/NavigatorUserMediaSuccessCallback.h"
     37 #include "platform/mediastream/MediaStreamSource.h"
     38 #include "public/platform/WebMediaConstraints.h"
     39 #include "wtf/Forward.h"
     40 #include "wtf/PassRefPtr.h"
     41 
     42 namespace blink {
     43 
     44 class Dictionary;
     45 class Document;
     46 class ExceptionState;
     47 class MediaStreamDescriptor;
     48 class UserMediaController;
     49 
     50 class UserMediaRequest FINAL : public GarbageCollectedFinalized<UserMediaRequest>, public ContextLifecycleObserver {
     51 public:
     52     static UserMediaRequest* create(ExecutionContext*, UserMediaController*, const Dictionary& options, NavigatorUserMediaSuccessCallback*, NavigatorUserMediaErrorCallback*, ExceptionState&);
     53     virtual ~UserMediaRequest();
     54 
     55     NavigatorUserMediaSuccessCallback* successCallback() const { return m_successCallback.get(); }
     56     NavigatorUserMediaErrorCallback* errorCallback() const { return m_errorCallback.get(); }
     57     Document* ownerDocument();
     58 
     59     void start();
     60 
     61     void succeed(PassRefPtr<MediaStreamDescriptor>);
     62     void failPermissionDenied(const String& message);
     63     void failConstraint(const String& constraintName, const String& message);
     64     void failUASpecific(const String& name, const String& message, const String& constraintName);
     65 
     66     bool audio() const;
     67     bool video() const;
     68     WebMediaConstraints audioConstraints() const;
     69     WebMediaConstraints videoConstraints() const;
     70 
     71     // ContextLifecycleObserver
     72     virtual void contextDestroyed() OVERRIDE;
     73 
     74     void trace(Visitor*);
     75 
     76 private:
     77     UserMediaRequest(ExecutionContext*, UserMediaController*, WebMediaConstraints audio, WebMediaConstraints video, NavigatorUserMediaSuccessCallback*, NavigatorUserMediaErrorCallback*);
     78 
     79     WebMediaConstraints m_audio;
     80     WebMediaConstraints m_video;
     81 
     82     UserMediaController* m_controller;
     83 
     84     Member<NavigatorUserMediaSuccessCallback> m_successCallback;
     85     Member<NavigatorUserMediaErrorCallback> m_errorCallback;
     86 };
     87 
     88 } // namespace blink
     89 
     90 #endif // UserMediaRequest_h
     91