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/*
* Copyright (C) 2013 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY GOOGLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GOOGLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#if ENABLE(WEB_RTC)
#include <WebCore/ActiveDOMObject.h>
#include <WebCore/EventTarget.h>
#include <WebCore/EventTargetInterfaces.h>
#include <WebCore/ScriptWrappable.h>
#include <WebCore/Timer.h>
namespace WebCore {
class MediaStreamTrack;
class RTCDTMFSenderBackend;
class RTCRtpSender;
template<typename> class ExceptionOr;
class RTCDTMFSender final : public RefCounted<RTCDTMFSender>, public EventTarget, public ActiveDOMObject {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED(RTCDTMFSender);
public:
void ref() const final { RefCounted::ref(); }
void deref() const final { RefCounted::deref(); }
static Ref<RTCDTMFSender> create(ScriptExecutionContext&, RTCRtpSender&, std::unique_ptr<RTCDTMFSenderBackend>&&);
virtual ~RTCDTMFSender();
bool canInsertDTMF() const;
String toneBuffer() const;
ExceptionOr<void> insertDTMF(const String& tones, size_t duration, size_t interToneGap);
private:
RTCDTMFSender(ScriptExecutionContext&, RTCRtpSender&, std::unique_ptr<RTCDTMFSenderBackend>&&);
// ActiveDOMObject.
void stop() final;
enum EventTargetInterfaceType eventTargetInterface() const final { return EventTargetInterfaceType::RTCDTMFSender; }
ScriptExecutionContext* scriptExecutionContext() const final;
using ActiveDOMObject::protectedScriptExecutionContext;
bool virtualHasPendingActivity() const final { return m_isPendingPlayoutTask; }
void refEventTarget() final { ref(); }
void derefEventTarget() final { deref(); }
bool isStopped() const { return !m_sender; }
void playNextTone();
void onTonePlayed();
void toneTimerFired();
Timer m_toneTimer;
WeakPtr<RTCRtpSender> m_sender;
std::unique_ptr<RTCDTMFSenderBackend> m_backend;
String m_tones;
size_t m_duration;
size_t m_interToneGap;
bool m_isPendingPlayoutTask { false };
};
} // namespace WebCore
#endif // ENABLE(WEB_RTC)
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