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 "platform/PlatformExport.h" 30 #include "platform/speech/PlatformSpeechSynthesisVoice.h" 31 #include "wtf/PassOwnPtr.h" 32 #include "wtf/Vector.h" 33 34 namespace blink { 35 class WebSpeechSynthesizer; 36 class WebSpeechSynthesizerClient; 37 } 38 39 namespace WebCore { 40 41 enum SpeechBoundary { 42 SpeechWordBoundary, 43 SpeechSentenceBoundary 44 }; 45 46 class PlatformSpeechSynthesisUtterance; 47 48 class PlatformSpeechSynthesizerClient { 49 public: 50 virtual void didStartSpeaking(PassRefPtr<PlatformSpeechSynthesisUtterance>) = 0; 51 virtual void didFinishSpeaking(PassRefPtr<PlatformSpeechSynthesisUtterance>) = 0; 52 virtual void didPauseSpeaking(PassRefPtr<PlatformSpeechSynthesisUtterance>) = 0; 53 virtual void didResumeSpeaking(PassRefPtr<PlatformSpeechSynthesisUtterance>) = 0; 54 virtual void speakingErrorOccurred(PassRefPtr<PlatformSpeechSynthesisUtterance>) = 0; 55 virtual void boundaryEventOccurred(PassRefPtr<PlatformSpeechSynthesisUtterance>, SpeechBoundary, unsigned charIndex) = 0; 56 virtual void voicesDidChange() = 0; 57 protected: ~PlatformSpeechSynthesizerClient()58 virtual ~PlatformSpeechSynthesizerClient() { } 59 }; 60 61 class PLATFORM_EXPORT PlatformSpeechSynthesizer { 62 WTF_MAKE_NONCOPYABLE(PlatformSpeechSynthesizer); 63 public: 64 static PassOwnPtr<PlatformSpeechSynthesizer> create(PlatformSpeechSynthesizerClient*); 65 66 virtual ~PlatformSpeechSynthesizer(); 67 voiceList()68 const Vector<RefPtr<PlatformSpeechSynthesisVoice> >& voiceList() const { return m_voiceList; } 69 virtual void speak(PassRefPtr<PlatformSpeechSynthesisUtterance>); 70 virtual void pause(); 71 virtual void resume(); 72 virtual void cancel(); 73 client()74 PlatformSpeechSynthesizerClient* client() const { return m_speechSynthesizerClient; } 75 76 void setVoiceList(Vector<RefPtr<PlatformSpeechSynthesisVoice> >&); 77 78 protected: 79 virtual void initializeVoiceList(); 80 explicit PlatformSpeechSynthesizer(PlatformSpeechSynthesizerClient*); 81 Vector<RefPtr<PlatformSpeechSynthesisVoice> > m_voiceList; 82 83 private: 84 PlatformSpeechSynthesizerClient* m_speechSynthesizerClient; 85 86 OwnPtr<blink::WebSpeechSynthesizer> m_webSpeechSynthesizer; 87 OwnPtr<blink::WebSpeechSynthesizerClient> m_webSpeechSynthesizerClient; 88 }; 89 90 } // namespace WebCore 91 92 #endif // PlatformSpeechSynthesizer_h 93