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/*
* Copyright (C) 2019 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
#if ENABLE(SPEECH_SYNTHESIS)
#include <wtf/WeakPtr.h>
namespace WebCore {
class PlatformSpeechSynthesisUtterance;
class SpeechSynthesisClientObserver;
class PlatformSpeechSynthesisVoice;
class SpeechSynthesisClient : public CanMakeWeakPtr<SpeechSynthesisClient> {
public:
virtual ~SpeechSynthesisClient() = default;
virtual void setObserver(WeakPtr<SpeechSynthesisClientObserver>) = 0;
virtual WeakPtr<SpeechSynthesisClientObserver> observer() const = 0;
virtual const Vector<RefPtr<PlatformSpeechSynthesisVoice>>& voiceList() = 0;
virtual void speak(RefPtr<PlatformSpeechSynthesisUtterance>) = 0;
virtual void cancel() = 0;
virtual void pause() = 0;
virtual void resume() = 0;
virtual void resetState() = 0;
};
class SpeechSynthesisClientObserver : public CanMakeWeakPtr<SpeechSynthesisClientObserver> {
public:
virtual ~SpeechSynthesisClientObserver() = default;
virtual void didStartSpeaking() = 0;
virtual void didFinishSpeaking() = 0;
virtual void didPauseSpeaking() = 0;
virtual void didResumeSpeaking() = 0;
virtual void speakingErrorOccurred() = 0;
virtual void boundaryEventOccurred(bool wordBoundary, unsigned charIndex) = 0;
virtual void voicesChanged() = 0;
};
} // namespace WebCore
#endif // ENABLE(SPEECH_SYNTHESIS)