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/*
* Copyright (C) 2020 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. AND ITS CONTRIBUTORS ``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 ITS 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
#include "ActiveDOMObject.h"
#include "EventTarget.h"
#include "SpeechRecognitionConnection.h"
#include "SpeechRecognitionConnectionClient.h"
#include "SpeechRecognitionResult.h"
namespace WebCore {
class Document;
class SpeechRecognitionResult;
class SpeechRecognition final : public SpeechRecognitionConnectionClient, public ActiveDOMObject, public RefCounted<SpeechRecognition>, public EventTarget {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED(SpeechRecognition);
public:
void ref() const final { RefCounted::ref(); }
void deref() const final { RefCounted::deref(); }
static Ref<SpeechRecognition> create(Document&);
USING_CAN_MAKE_WEAKPTR(SpeechRecognitionConnectionClient);
const String& lang() const { return m_lang; }
void setLang(String&& lang) { m_lang = WTFMove(lang); }
bool continuous() const { return m_continuous; }
void setContinuous(bool continuous) { m_continuous = continuous; }
bool interimResults() const { return m_interimResults; }
void setInterimResults(bool interimResults) { m_interimResults = interimResults; }
uint64_t maxAlternatives() const { return m_maxAlternatives; }
void setMaxAlternatives(unsigned maxAlternatives) { m_maxAlternatives = maxAlternatives; }
ExceptionOr<void> startRecognition();
void stopRecognition();
void abortRecognition();
virtual ~SpeechRecognition();
private:
enum class State {
Inactive,
Starting,
Running,
Stopping,
Aborting,
};
explicit SpeechRecognition(Document&);
// SpeechRecognitionConnectionClient
void didStart() final;
void didStartCapturingAudio() final;
void didStartCapturingSound() final;
void didStartCapturingSpeech() final;
void didStopCapturingSpeech() final;
void didStopCapturingSound() final;
void didStopCapturingAudio() final;
void didFindNoMatch() final;
void didReceiveResult(Vector<SpeechRecognitionResultData>&& resultDatas) final;
void didError(const SpeechRecognitionError&) final;
void didEnd() final;
// ActiveDOMObject
void suspend(ReasonForSuspension) final;
void stop() final;
// EventTarget
ScriptExecutionContext* scriptExecutionContext() const final { return ActiveDOMObject::scriptExecutionContext(); }
enum EventTargetInterfaceType eventTargetInterface() const final { return EventTargetInterfaceType::SpeechRecognition; }
void refEventTarget() final { ref(); }
void derefEventTarget() final { deref(); }
bool virtualHasPendingActivity() const final;
String m_lang;
bool m_continuous { false };
bool m_interimResults { false };
uint64_t m_maxAlternatives { 1 };
State m_state { State::Inactive };
Vector<Ref<SpeechRecognitionResult>> m_finalResults;
RefPtr<SpeechRecognitionConnection> m_connection;
};
} // namespace WebCore
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