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 class WebSpeechSynthesizer; 36 class WebSpeechSynthesizerClient; 37 } 38 39 namespace WebCore { 40 41 enum SpeechBoundary { 42 SpeechWordBoundary, 43 SpeechSentenceBoundary 44 }; 45 46 class PlatformSpeechSynthesisUtterance; 47 class WebSpeechSynthesizerClientImpl; 48 49 class PlatformSpeechSynthesizerClient : public GarbageCollectedMixin { 50 public: 51 virtual void didStartSpeaking(PlatformSpeechSynthesisUtterance*) = 0; 52 virtual void didFinishSpeaking(PlatformSpeechSynthesisUtterance*) = 0; 53 virtual void didPauseSpeaking(PlatformSpeechSynthesisUtterance*) = 0; 54 virtual void didResumeSpeaking(PlatformSpeechSynthesisUtterance*) = 0; 55 virtual void speakingErrorOccurred(PlatformSpeechSynthesisUtterance*) = 0; 56 virtual void boundaryEventOccurred(PlatformSpeechSynthesisUtterance*, SpeechBoundary, unsigned charIndex) = 0; 57 virtual void voicesDidChange() = 0; 58 59 virtual void trace(Visitor*) { } 60 protected: 61 virtual ~PlatformSpeechSynthesizerClient() { } 62 }; 63 64 class PLATFORM_EXPORT PlatformSpeechSynthesizer : public GarbageCollectedFinalized<PlatformSpeechSynthesizer> { 65 WTF_MAKE_NONCOPYABLE(PlatformSpeechSynthesizer); 66 public: 67 static PlatformSpeechSynthesizer* create(PlatformSpeechSynthesizerClient*); 68 69 virtual ~PlatformSpeechSynthesizer(); 70 71 const HeapVector<Member<PlatformSpeechSynthesisVoice> >& voiceList() const { return m_voiceList; } 72 virtual void speak(PlatformSpeechSynthesisUtterance*); 73 virtual void pause(); 74 virtual void resume(); 75 virtual void cancel(); 76 77 PlatformSpeechSynthesizerClient* client() const { return m_speechSynthesizerClient; } 78 79 void setVoiceList(HeapVector<Member<PlatformSpeechSynthesisVoice> >&); 80 81 virtual void trace(Visitor*); 82 83 protected: 84 explicit PlatformSpeechSynthesizer(PlatformSpeechSynthesizerClient*); 85 86 virtual void initializeVoiceList(); 87 88 HeapVector<Member<PlatformSpeechSynthesisVoice> > m_voiceList; 89 90 private: 91 Member<PlatformSpeechSynthesizerClient> m_speechSynthesizerClient; 92 93 OwnPtr<blink::WebSpeechSynthesizer> m_webSpeechSynthesizer; 94 Member<WebCore::WebSpeechSynthesizerClientImpl> m_webSpeechSynthesizerClient; 95 }; 96 97 } // namespace WebCore 98 99 #endif // PlatformSpeechSynthesizer_h 100