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/heap/Handle.h" 31 #include "platform/speech/PlatformSpeechSynthesisVoice.h" 32 #include "wtf/Vector.h" 33 34 namespace blink { 35 36 enum SpeechBoundary { 37 SpeechWordBoundary, 38 SpeechSentenceBoundary 39 }; 40 41 class PlatformSpeechSynthesisUtterance; 42 class WebSpeechSynthesizer; 43 class WebSpeechSynthesizerClientImpl; 44 45 class PlatformSpeechSynthesizerClient : public GarbageCollectedMixin { 46 public: 47 virtual void didStartSpeaking(PlatformSpeechSynthesisUtterance*) = 0; 48 virtual void didFinishSpeaking(PlatformSpeechSynthesisUtterance*) = 0; 49 virtual void didPauseSpeaking(PlatformSpeechSynthesisUtterance*) = 0; 50 virtual void didResumeSpeaking(PlatformSpeechSynthesisUtterance*) = 0; 51 virtual void speakingErrorOccurred(PlatformSpeechSynthesisUtterance*) = 0; 52 virtual void boundaryEventOccurred(PlatformSpeechSynthesisUtterance*, SpeechBoundary, unsigned charIndex) = 0; 53 virtual void voicesDidChange() = 0; 54 55 protected: ~PlatformSpeechSynthesizerClient()56 virtual ~PlatformSpeechSynthesizerClient() { } 57 }; 58 59 class PLATFORM_EXPORT PlatformSpeechSynthesizer : public GarbageCollectedFinalized<PlatformSpeechSynthesizer> { 60 WTF_MAKE_NONCOPYABLE(PlatformSpeechSynthesizer); 61 public: 62 static PlatformSpeechSynthesizer* create(PlatformSpeechSynthesizerClient*); 63 64 virtual ~PlatformSpeechSynthesizer(); 65 voiceList()66 const HeapVector<Member<PlatformSpeechSynthesisVoice> >& voiceList() const { return m_voiceList; } 67 virtual void speak(PlatformSpeechSynthesisUtterance*); 68 virtual void pause(); 69 virtual void resume(); 70 virtual void cancel(); 71 client()72 PlatformSpeechSynthesizerClient* client() const { return m_speechSynthesizerClient; } 73 74 void setVoiceList(HeapVector<Member<PlatformSpeechSynthesisVoice> >&); 75 76 virtual void trace(Visitor*); 77 78 protected: 79 explicit PlatformSpeechSynthesizer(PlatformSpeechSynthesizerClient*); 80 81 virtual void initializeVoiceList(); 82 83 HeapVector<Member<PlatformSpeechSynthesisVoice> > m_voiceList; 84 85 private: 86 Member<PlatformSpeechSynthesizerClient> m_speechSynthesizerClient; 87 88 OwnPtr<WebSpeechSynthesizer> m_webSpeechSynthesizer; 89 Member<WebSpeechSynthesizerClientImpl> m_webSpeechSynthesizerClient; 90 }; 91 92 } // namespace blink 93 94 #endif // PlatformSpeechSynthesizer_h 95