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#pragma once
27
28#if ENABLE(WEB_RTC_DTMF)
29
30#include "ActiveDOMObject.h"
31#include "EventTarget.h"
32#include "ExceptionOr.h"
33#include "ScriptWrappable.h"
34#include "Timer.h"
35
36namespace WebCore {
37
38class MediaStreamTrack;
39
40class RTCDTMFSender final : public RefCounted<RTCDTMFSender>, public EventTargetWithInlineData, public ActiveDOMObject {
41 WTF_MAKE_ISO_ALLOCATED(RTCDTMFSender);
42public:
43 virtual ~RTCDTMFSender();
44
45 bool canInsertDTMF() const;
46 MediaStreamTrack* track() const;
47 String toneBuffer() const;
48 int duration() const { return m_duration; }
49 int interToneGap() const { return m_interToneGap; }
50
51 ExceptionOr<void> insertDTMF(const String& tones, Optional<int> duration, Optional<int> interToneGap);
52
53 using RefCounted::ref;
54 using RefCounted::deref;
55
56private:
57 RTCDTMFSender(ScriptExecutionContext&, RefPtr<MediaStreamTrack>&&);
58
59 void stop() final;
60 const char* activeDOMObjectName() const final;
61 bool canSuspendForDocumentSuspension() const final;
62
63 EventTargetInterface eventTargetInterface() const final { return RTCDTMFSenderEventTargetInterfaceType; }
64 ScriptExecutionContext* scriptExecutionContext() const final { return ActiveDOMObject::scriptExecutionContext(); }
65
66 void refEventTarget() final { ref(); }
67 void derefEventTarget() final { deref(); }
68
69 void didPlayTone(const String&);
70
71 void scheduleDispatchEvent(Ref<Event>&&);
72 void scheduledEventTimerFired();
73
74 RefPtr<MediaStreamTrack> m_track;
75 int m_duration;
76 int m_interToneGap;
77
78 bool m_stopped;
79
80 Timer m_scheduledEventTimer;
81 Vector<Ref<Event>> m_scheduledEvents;
82};
83
84} // namespace WebCore
85
86#endif // ENABLE(WEB_RTC)
87