1// Copyright (c) 2013 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#ifndef CONTENT_RENDERER_MEDIA_RTC_DTMF_SENDER_HANDLER_H_ 6#define CONTENT_RENDERER_MEDIA_RTC_DTMF_SENDER_HANDLER_H_ 7 8#include <string> 9 10#include "base/memory/ref_counted.h" 11#include "base/threading/non_thread_safe.h" 12#include "content/common/content_export.h" 13#include "third_party/WebKit/public/platform/WebRTCDTMFSenderHandler.h" 14#include "third_party/WebKit/public/platform/WebRTCDTMFSenderHandlerClient.h" 15#include "third_party/libjingle/source/talk/app/webrtc/dtmfsenderinterface.h" 16 17namespace content { 18 19// RtcDtmfSenderHandler is a delegate for the RTC DTMF Sender API messages 20// going between WebKit and native DTMF Sender in libjingle. 21// Instances of this class are owned by WebKit. 22// WebKit call all of these methods on the main render thread. 23// Callbacks to the webrtc::DtmfSenderObserverInterface implementation also 24// occur on the main render thread. 25class CONTENT_EXPORT RtcDtmfSenderHandler 26 : NON_EXPORTED_BASE(public blink::WebRTCDTMFSenderHandler), 27 NON_EXPORTED_BASE(public webrtc::DtmfSenderObserverInterface), 28 NON_EXPORTED_BASE(public base::NonThreadSafe) { 29 public: 30 explicit RtcDtmfSenderHandler(webrtc::DtmfSenderInterface* dtmf_sender); 31 virtual ~RtcDtmfSenderHandler(); 32 33 // blink::WebRTCDTMFSenderHandler implementation. 34 virtual void setClient( 35 blink::WebRTCDTMFSenderHandlerClient* client) OVERRIDE; 36 virtual blink::WebString currentToneBuffer() OVERRIDE; 37 virtual bool canInsertDTMF() OVERRIDE; 38 virtual bool insertDTMF(const blink::WebString& tones, long duration, 39 long interToneGap) OVERRIDE; 40 41 // webrtc::DtmfSenderObserverInterface implementation. 42 virtual void OnToneChange(const std::string& tone) OVERRIDE; 43 44 private: 45 scoped_refptr<webrtc::DtmfSenderInterface> dtmf_sender_; 46 blink::WebRTCDTMFSenderHandlerClient* webkit_client_; 47}; 48 49} // namespace content 50 51#endif // CONTENT_RENDERER_MEDIA_RTC_DTMF_SENDER_HANDLER_H_ 52 53