Home | History | Annotate | Download | only in mediastream
      1 /*
      2  * Copyright (C) 2013 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 RTCDTMFSender_h
     27 #define RTCDTMFSender_h
     28 
     29 #include "bindings/v8/ScriptWrappable.h"
     30 #include "core/dom/ActiveDOMObject.h"
     31 #include "core/events/EventTarget.h"
     32 #include "platform/Timer.h"
     33 #include "platform/mediastream/RTCDTMFSenderHandlerClient.h"
     34 #include "wtf/RefCounted.h"
     35 
     36 namespace WebCore {
     37 
     38 class ExceptionState;
     39 class MediaStreamTrack;
     40 class RTCDTMFSenderHandler;
     41 class RTCPeerConnectionHandler;
     42 
     43 class RTCDTMFSender : public RefCounted<RTCDTMFSender>, public ScriptWrappable, public EventTargetWithInlineData, public RTCDTMFSenderHandlerClient, public ActiveDOMObject {
     44     REFCOUNTED_EVENT_TARGET(RTCDTMFSender);
     45 public:
     46     static PassRefPtr<RTCDTMFSender> create(ExecutionContext*, RTCPeerConnectionHandler*, PassRefPtr<MediaStreamTrack>, ExceptionState&);
     47     ~RTCDTMFSender();
     48 
     49     bool canInsertDTMF() const;
     50     MediaStreamTrack* track() const;
     51     String toneBuffer() const;
     52     long duration() const { return m_duration; }
     53     long interToneGap() const { return m_interToneGap; }
     54 
     55     void insertDTMF(const String& tones, ExceptionState&);
     56     void insertDTMF(const String& tones, long duration, ExceptionState&);
     57     void insertDTMF(const String& tones, long duration, long interToneGap, ExceptionState&);
     58 
     59     DEFINE_ATTRIBUTE_EVENT_LISTENER(tonechange);
     60 
     61     // EventTarget
     62     virtual const AtomicString& interfaceName() const OVERRIDE;
     63     virtual ExecutionContext* executionContext() const OVERRIDE;
     64 
     65     // ActiveDOMObject
     66     virtual void stop() OVERRIDE;
     67 
     68 private:
     69     RTCDTMFSender(ExecutionContext*, PassRefPtr<MediaStreamTrack>, PassOwnPtr<RTCDTMFSenderHandler>);
     70 
     71     void scheduleDispatchEvent(PassRefPtr<Event>);
     72     void scheduledEventTimerFired(Timer<RTCDTMFSender>*);
     73 
     74     // RTCDTMFSenderHandlerClient
     75     virtual void didPlayTone(const String&) OVERRIDE;
     76 
     77     RefPtr<MediaStreamTrack> m_track;
     78     long m_duration;
     79     long m_interToneGap;
     80 
     81     OwnPtr<RTCDTMFSenderHandler> m_handler;
     82 
     83     bool m_stopped;
     84 
     85     Timer<RTCDTMFSender> m_scheduledEventTimer;
     86     Vector<RefPtr<Event> > m_scheduledEvents;
     87 };
     88 
     89 } // namespace WebCore
     90 
     91 #endif // RTCDTMFSender_h
     92