| /* |
| * Copyright (C) 2013 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef SpeechSynthesis_h |
| #define SpeechSynthesis_h |
| |
| #include "bindings/v8/ScriptWrappable.h" |
| #include "core/dom/ContextLifecycleObserver.h" |
| #include "core/events/EventTarget.h" |
| #include "modules/speech/SpeechSynthesisUtterance.h" |
| #include "modules/speech/SpeechSynthesisVoice.h" |
| #include "platform/speech/PlatformSpeechSynthesisUtterance.h" |
| #include "platform/speech/PlatformSpeechSynthesizer.h" |
| #include "wtf/Deque.h" |
| #include "wtf/PassRefPtr.h" |
| #include "wtf/RefCounted.h" |
| #include "wtf/RefPtr.h" |
| |
| namespace WebCore { |
| |
| class ExceptionState; |
| class PlatformSpeechSynthesizerClient; |
| class SpeechSynthesisVoice; |
| |
| class SpeechSynthesis : public PlatformSpeechSynthesizerClient, public ScriptWrappable, public RefCounted<SpeechSynthesis>, public ContextLifecycleObserver, public EventTargetWithInlineData { |
| REFCOUNTED_EVENT_TARGET(SpeechSynthesis); |
| public: |
| static PassRefPtr<SpeechSynthesis> create(ExecutionContext*); |
| |
| bool pending() const; |
| bool speaking() const; |
| bool paused() const; |
| |
| void speak(SpeechSynthesisUtterance*, ExceptionState&); |
| void cancel(); |
| void pause(); |
| void resume(); |
| |
| const Vector<RefPtr<SpeechSynthesisVoice> >& getVoices(); |
| |
| // Used in testing to use a mock platform synthesizer |
| void setPlatformSynthesizer(PassOwnPtr<PlatformSpeechSynthesizer>); |
| |
| DEFINE_ATTRIBUTE_EVENT_LISTENER(voiceschanged); |
| |
| virtual ExecutionContext* executionContext() const; |
| |
| private: |
| explicit SpeechSynthesis(ExecutionContext*); |
| |
| // PlatformSpeechSynthesizerClient override methods. |
| virtual void voicesDidChange() OVERRIDE; |
| virtual void didStartSpeaking(PassRefPtr<PlatformSpeechSynthesisUtterance>) OVERRIDE; |
| virtual void didPauseSpeaking(PassRefPtr<PlatformSpeechSynthesisUtterance>) OVERRIDE; |
| virtual void didResumeSpeaking(PassRefPtr<PlatformSpeechSynthesisUtterance>) OVERRIDE; |
| virtual void didFinishSpeaking(PassRefPtr<PlatformSpeechSynthesisUtterance>) OVERRIDE; |
| virtual void speakingErrorOccurred(PassRefPtr<PlatformSpeechSynthesisUtterance>) OVERRIDE; |
| virtual void boundaryEventOccurred(PassRefPtr<PlatformSpeechSynthesisUtterance>, SpeechBoundary, unsigned charIndex) OVERRIDE; |
| |
| void startSpeakingImmediately(); |
| void handleSpeakingCompleted(SpeechSynthesisUtterance*, bool errorOccurred); |
| void fireEvent(const AtomicString& type, SpeechSynthesisUtterance*, unsigned long charIndex, const String& name); |
| |
| // Returns the utterance at the front of the queue. |
| SpeechSynthesisUtterance* currentSpeechUtterance() const; |
| |
| OwnPtr<PlatformSpeechSynthesizer> m_platformSpeechSynthesizer; |
| Vector<RefPtr<SpeechSynthesisVoice> > m_voiceList; |
| Deque<RefPtr<SpeechSynthesisUtterance> > m_utteranceQueue; |
| bool m_isPaused; |
| |
| // EventTarget |
| virtual const AtomicString& interfaceName() const OVERRIDE; |
| }; |
| |
| } // namespace WebCore |
| |
| #endif // SpeechSynthesisEvent_h |