1 /* 2 * Copyright (C) 2013 Apple Computer, Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef PlatformSpeechSynthesizer_h 27 #define PlatformSpeechSynthesizer_h 28 29 #include "core/platform/PlatformSpeechSynthesisVoice.h" 30 #include "wtf/PassOwnPtr.h" 31 #include "wtf/Vector.h" 32 33 namespace WebKit { 34 class WebSpeechSynthesizer; 35 class WebSpeechSynthesizerClient; 36 } 37 38 namespace WebCore { 39 40 enum SpeechBoundary { 41 SpeechWordBoundary, 42 SpeechSentenceBoundary 43 }; 44 45 class PlatformSpeechSynthesisUtterance; 46 47 class PlatformSpeechSynthesizerClient { 48 public: 49 virtual void didStartSpeaking(PassRefPtr<PlatformSpeechSynthesisUtterance>) = 0; 50 virtual void didFinishSpeaking(PassRefPtr<PlatformSpeechSynthesisUtterance>) = 0; 51 virtual void didPauseSpeaking(PassRefPtr<PlatformSpeechSynthesisUtterance>) = 0; 52 virtual void didResumeSpeaking(PassRefPtr<PlatformSpeechSynthesisUtterance>) = 0; 53 virtual void speakingErrorOccurred(PassRefPtr<PlatformSpeechSynthesisUtterance>) = 0; 54 virtual void boundaryEventOccurred(PassRefPtr<PlatformSpeechSynthesisUtterance>, SpeechBoundary, unsigned charIndex) = 0; 55 virtual void voicesDidChange() = 0; 56 protected: 57 virtual ~PlatformSpeechSynthesizerClient() { } 58 }; 59 60 class PlatformSpeechSynthesizer { 61 public: 62 static PassOwnPtr<PlatformSpeechSynthesizer> create(PlatformSpeechSynthesizerClient*); 63 64 virtual ~PlatformSpeechSynthesizer(); 65 66 const Vector<RefPtr<PlatformSpeechSynthesisVoice> >& voiceList() const { return m_voiceList; } 67 virtual void speak(PassRefPtr<PlatformSpeechSynthesisUtterance>); 68 virtual void pause(); 69 virtual void resume(); 70 virtual void cancel(); 71 72 PlatformSpeechSynthesizerClient* client() const { return m_speechSynthesizerClient; } 73 74 void setVoiceList(Vector<RefPtr<PlatformSpeechSynthesisVoice> >&); 75 76 protected: 77 virtual void initializeVoiceList(); 78 explicit PlatformSpeechSynthesizer(PlatformSpeechSynthesizerClient*); 79 Vector<RefPtr<PlatformSpeechSynthesisVoice> > m_voiceList; 80 81 private: 82 PlatformSpeechSynthesizerClient* m_speechSynthesizerClient; 83 84 OwnPtr<WebKit::WebSpeechSynthesizer> m_webSpeechSynthesizer; 85 OwnPtr<WebKit::WebSpeechSynthesizerClient> m_webSpeechSynthesizerClient; 86 }; 87 88 } // namespace WebCore 89 90 #endif // PlatformSpeechSynthesizer_h 91