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/*
* Copyright (C) 2013 Apple 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 APPLE 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 APPLE 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(SPEECH_SYNTHESIS)
#include "ActiveDOMObject.h"
#include "EventTarget.h"
#include "PlatformSpeechSynthesisUtterance.h"
#include "SpeechSynthesisErrorCode.h"
#include "SpeechSynthesisVoice.h"
#include <wtf/RefCounted.h>
#include <wtf/TZoneMalloc.h>
namespace WebCore {
class WEBCORE_EXPORT SpeechSynthesisUtterance final : public PlatformSpeechSynthesisUtteranceClient, public RefCounted<SpeechSynthesisUtterance>, public ActiveDOMObject, public EventTarget {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED_EXPORT(SpeechSynthesisUtterance, WEBCORE_EXPORT);
public:
void ref() const final;
void deref() const final;
using UtteranceCompletionHandler = Function<void(const SpeechSynthesisUtterance&)>;
static Ref<SpeechSynthesisUtterance> create(ScriptExecutionContext&, const String&, UtteranceCompletionHandler&&);
static Ref<SpeechSynthesisUtterance> create(ScriptExecutionContext&, const String&);
// Create an empty default constructor so SpeechSynthesisEventInit compiles.
SpeechSynthesisUtterance();
virtual ~SpeechSynthesisUtterance();
const String& text() const { return m_platformUtterance->text(); }
void setText(const String& text) { m_platformUtterance->setText(text); }
const String& lang() const { return m_platformUtterance->lang(); }
void setLang(const String& lang) { m_platformUtterance->setLang(lang); }
SpeechSynthesisVoice* voice() const;
void setVoice(SpeechSynthesisVoice*);
float volume() const { return m_platformUtterance->volume(); }
void setVolume(float volume) { m_platformUtterance->setVolume(volume); }
float rate() const { return m_platformUtterance->rate(); }
void setRate(float rate) { m_platformUtterance->setRate(rate); }
float pitch() const { return m_platformUtterance->pitch(); }
void setPitch(float pitch) { m_platformUtterance->setPitch(pitch); }
MonotonicTime startTime() const { return m_platformUtterance->startTime(); }
void setStartTime(MonotonicTime startTime) { m_platformUtterance->setStartTime(startTime); }
PlatformSpeechSynthesisUtterance* platformUtterance() const { return m_platformUtterance.get(); }
void eventOccurred(const AtomString& type, unsigned long charIndex, unsigned long charLength, const String& name);
void errorEventOccurred(const AtomString& type, SpeechSynthesisErrorCode);
void setIsActiveForEventDispatch(bool);
private:
SpeechSynthesisUtterance(ScriptExecutionContext&, const String&, UtteranceCompletionHandler&&);
void dispatchEventAndUpdateState(Event&);
void incrementActivityCountForEventDispatch();
void decrementActivityCountForEventDispatch();
// ActiveDOMObject
bool virtualHasPendingActivity() const final;
// EventTarget
ScriptExecutionContext* scriptExecutionContext() const final { return ActiveDOMObject::scriptExecutionContext(); }
enum EventTargetInterfaceType eventTargetInterface() const final { return EventTargetInterfaceType::SpeechSynthesisUtterance; }
void refEventTarget() final { ref(); }
void derefEventTarget() final { deref(); }
friend class SpeechSynthesisUtteranceActivity;
RefPtr<PlatformSpeechSynthesisUtterance> m_platformUtterance;
RefPtr<SpeechSynthesisVoice> m_voice;
UtteranceCompletionHandler m_completionHandler;
unsigned m_activityCountForEventDispatch { 0 };
};
class SpeechSynthesisUtteranceActivity {
WTF_MAKE_TZONE_ALLOCATED(SpeechSynthesisUtteranceActivity);
public:
SpeechSynthesisUtteranceActivity(Ref<SpeechSynthesisUtterance>&& utterance)
: m_utterance(utterance)
{
m_utterance->incrementActivityCountForEventDispatch();
}
~SpeechSynthesisUtteranceActivity()
{
m_utterance->decrementActivityCountForEventDispatch();
}
SpeechSynthesisUtterance& utterance() { return m_utterance.get(); }
private:
Ref<SpeechSynthesisUtterance> m_utterance;
};
} // namespace WebCore
#endif // ENABLE(SPEECH_SYNTHESIS)
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