/* * 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; }; 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)