| /* |
| * 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. |
| */ |
| |
| #ifndef PlatformSpeechSynthesizer_h |
| #define PlatformSpeechSynthesizer_h |
| |
| #if ENABLE(SPEECH_SYNTHESIS) |
| |
| #include "PlatformSpeechSynthesisVoice.h" |
| #include <wtf/Vector.h> |
| |
| #if PLATFORM(COCOA) |
| #include <wtf/RetainPtr.h> |
| OBJC_CLASS WebSpeechSynthesisWrapper; |
| #endif |
| |
| namespace WebCore { |
| |
| enum class SpeechBoundary : uint8_t { |
| SpeechWordBoundary, |
| SpeechSentenceBoundary |
| }; |
| |
| class PlatformSpeechSynthesisUtterance; |
| |
| class PlatformSpeechSynthesizerClient { |
| public: |
| virtual void didStartSpeaking(PlatformSpeechSynthesisUtterance&) = 0; |
| virtual void didFinishSpeaking(PlatformSpeechSynthesisUtterance&) = 0; |
| virtual void didPauseSpeaking(PlatformSpeechSynthesisUtterance&) = 0; |
| virtual void didResumeSpeaking(PlatformSpeechSynthesisUtterance&) = 0; |
| virtual void speakingErrorOccurred(PlatformSpeechSynthesisUtterance&) = 0; |
| virtual void boundaryEventOccurred(PlatformSpeechSynthesisUtterance&, SpeechBoundary, unsigned charIndex) = 0; |
| virtual void voicesDidChange() = 0; |
| protected: |
| virtual ~PlatformSpeechSynthesizerClient() = default; |
| }; |
| |
| class WEBCORE_EXPORT PlatformSpeechSynthesizer { |
| WTF_MAKE_FAST_ALLOCATED; |
| public: |
| WEBCORE_EXPORT explicit PlatformSpeechSynthesizer(PlatformSpeechSynthesizerClient*); |
| |
| // FIXME: We have multiple virtual functions just so we can support a mock for testing. |
| // Seems wasteful. Would be nice to find a better way. |
| WEBCORE_EXPORT virtual ~PlatformSpeechSynthesizer(); |
| |
| const Vector<RefPtr<PlatformSpeechSynthesisVoice>>& voiceList() const; |
| virtual void speak(RefPtr<PlatformSpeechSynthesisUtterance>&&); |
| virtual void pause(); |
| virtual void resume(); |
| virtual void cancel(); |
| |
| void resetState(); |
| PlatformSpeechSynthesizerClient* client() const { return m_speechSynthesizerClient; } |
| |
| protected: |
| Vector<RefPtr<PlatformSpeechSynthesisVoice>> m_voiceList; |
| |
| private: |
| virtual void initializeVoiceList(); |
| |
| bool m_voiceListIsInitialized { false }; |
| PlatformSpeechSynthesizerClient* m_speechSynthesizerClient; |
| |
| #if PLATFORM(COCOA) |
| RetainPtr<WebSpeechSynthesisWrapper> m_platformSpeechWrapper; |
| #endif |
| }; |
| |
| } // namespace WebCore |
| |
| #endif // ENABLE(SPEECH_SYNTHESIS) |
| |
| #endif // PlatformSpeechSynthesizer_h |