1 /* 2 * Copyright (C) 2013 Apple 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 SpeechSynthesis_h 27 #define SpeechSynthesis_h 28 29 #include "bindings/v8/ScriptWrappable.h" 30 #include "core/platform/PlatformSpeechSynthesisUtterance.h" 31 #include "core/platform/PlatformSpeechSynthesizer.h" 32 #include "modules/speech/SpeechSynthesisUtterance.h" 33 #include "modules/speech/SpeechSynthesisVoice.h" 34 #include "wtf/Deque.h" 35 #include "wtf/PassRefPtr.h" 36 #include "wtf/RefCounted.h" 37 #include "wtf/RefPtr.h" 38 39 namespace WebCore { 40 41 class PlatformSpeechSynthesizerClient; 42 class SpeechSynthesisVoice; 43 44 class SpeechSynthesis : public PlatformSpeechSynthesizerClient, public ScriptWrappable, public RefCounted<SpeechSynthesis> { 45 public: 46 static PassRefPtr<SpeechSynthesis> create(); 47 48 bool pending() const; 49 bool speaking() const; 50 bool paused() const; 51 52 void speak(SpeechSynthesisUtterance*); 53 void cancel(); 54 void pause(); 55 void resume(); 56 57 const Vector<RefPtr<SpeechSynthesisVoice> >& getVoices(); 58 59 // Used in testing to use a mock platform synthesizer 60 void setPlatformSynthesizer(PassOwnPtr<PlatformSpeechSynthesizer>); 61 62 private: 63 SpeechSynthesis(); 64 65 // PlatformSpeechSynthesizerClient override methods. 66 virtual void voicesDidChange() OVERRIDE; 67 virtual void didStartSpeaking(PassRefPtr<PlatformSpeechSynthesisUtterance>) OVERRIDE; 68 virtual void didPauseSpeaking(PassRefPtr<PlatformSpeechSynthesisUtterance>) OVERRIDE; 69 virtual void didResumeSpeaking(PassRefPtr<PlatformSpeechSynthesisUtterance>) OVERRIDE; 70 virtual void didFinishSpeaking(PassRefPtr<PlatformSpeechSynthesisUtterance>) OVERRIDE; 71 virtual void speakingErrorOccurred(PassRefPtr<PlatformSpeechSynthesisUtterance>) OVERRIDE; 72 virtual void boundaryEventOccurred(PassRefPtr<PlatformSpeechSynthesisUtterance>, SpeechBoundary, unsigned charIndex) OVERRIDE; 73 74 void startSpeakingImmediately(SpeechSynthesisUtterance*); 75 void handleSpeakingCompleted(SpeechSynthesisUtterance*, bool errorOccurred); 76 void fireEvent(const AtomicString& type, SpeechSynthesisUtterance*, unsigned long charIndex, const String& name); 77 78 OwnPtr<PlatformSpeechSynthesizer> m_platformSpeechSynthesizer; 79 Vector<RefPtr<SpeechSynthesisVoice> > m_voiceList; 80 SpeechSynthesisUtterance* m_currentSpeechUtterance; 81 Deque<RefPtr<SpeechSynthesisUtterance> > m_utteranceQueue; 82 bool m_isPaused; 83 }; 84 85 } // namespace WebCore 86 87 #endif // SpeechSynthesisEvent_h 88
