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      1 /*
      2  * Copyright (C) 2010, 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 #ifndef AudioProcessingEvent_h
     26 #define AudioProcessingEvent_h
     27 
     28 #include "modules/EventModules.h"
     29 #include "modules/webaudio/AudioBuffer.h"
     30 #include "wtf/PassRefPtr.h"
     31 #include "wtf/RefPtr.h"
     32 
     33 namespace blink {
     34 
     35 class AudioBuffer;
     36 
     37 class AudioProcessingEvent FINAL : public Event {
     38     DEFINE_WRAPPERTYPEINFO();
     39 public:
     40     static PassRefPtrWillBeRawPtr<AudioProcessingEvent> create();
     41     static PassRefPtrWillBeRawPtr<AudioProcessingEvent> create(AudioBuffer* inputBuffer, AudioBuffer* outputBuffer, double playbackTime);
     42 
     43     virtual ~AudioProcessingEvent();
     44 
     45     AudioBuffer* inputBuffer() { return m_inputBuffer.get(); }
     46     AudioBuffer* outputBuffer() { return m_outputBuffer.get(); }
     47     double playbackTime() const { return m_playbackTime; }
     48 
     49     virtual const AtomicString& interfaceName() const OVERRIDE;
     50 
     51     virtual void trace(Visitor*) OVERRIDE;
     52 
     53 private:
     54     AudioProcessingEvent();
     55     AudioProcessingEvent(AudioBuffer* inputBuffer, AudioBuffer* outputBuffer, double playbackTime);
     56 
     57     PersistentWillBeMember<AudioBuffer> m_inputBuffer;
     58     PersistentWillBeMember<AudioBuffer> m_outputBuffer;
     59     double m_playbackTime;
     60 };
     61 
     62 } // namespace blink
     63 
     64 #endif // AudioProcessingEvent_h
     65