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      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 SpeechSynthesisUtterance_h
     27 #define SpeechSynthesisUtterance_h
     28 
     29 #include "bindings/v8/ScriptWrappable.h"
     30 #include "core/dom/ContextLifecycleObserver.h"
     31 #include "modules/EventTargetModules.h"
     32 #include "modules/speech/SpeechSynthesisVoice.h"
     33 #include "platform/heap/Handle.h"
     34 #include "platform/speech/PlatformSpeechSynthesisUtterance.h"
     35 #include "wtf/PassRefPtr.h"
     36 
     37 namespace WebCore {
     38 
     39 class SpeechSynthesisUtterance FINAL : public RefCountedGarbageCollectedWillBeGarbageCollectedFinalized<SpeechSynthesisUtterance>, public PlatformSpeechSynthesisUtteranceClient, public ScriptWrappable, public ContextLifecycleObserver, public EventTargetWithInlineData {
     40     DEFINE_EVENT_TARGET_REFCOUNTING_WILL_BE_REMOVED(RefCountedGarbageCollected<SpeechSynthesisUtterance>);
     41     USING_GARBAGE_COLLECTED_MIXIN(SpeechSynthesisUtterance);
     42 public:
     43     static SpeechSynthesisUtterance* create(ExecutionContext*, const String&);
     44 
     45     virtual ~SpeechSynthesisUtterance();
     46 
     47     const String& text() const { return m_platformUtterance->text(); }
     48     void setText(const String& text) { m_platformUtterance->setText(text); }
     49 
     50     const String& lang() const { return m_platformUtterance->lang(); }
     51     void setLang(const String& lang) { m_platformUtterance->setLang(lang); }
     52 
     53     SpeechSynthesisVoice* voice() const;
     54     void setVoice(SpeechSynthesisVoice*);
     55 
     56     float volume() const { return m_platformUtterance->volume(); }
     57     void setVolume(float volume) { m_platformUtterance->setVolume(volume); }
     58 
     59     float rate() const { return m_platformUtterance->rate(); }
     60     void setRate(float rate) { m_platformUtterance->setRate(rate); }
     61 
     62     float pitch() const { return m_platformUtterance->pitch(); }
     63     void setPitch(float pitch) { m_platformUtterance->setPitch(pitch); }
     64 
     65     double startTime() const { return m_platformUtterance->startTime(); }
     66     void setStartTime(double startTime) { m_platformUtterance->setStartTime(startTime); }
     67 
     68     DEFINE_ATTRIBUTE_EVENT_LISTENER(start);
     69     DEFINE_ATTRIBUTE_EVENT_LISTENER(end);
     70     DEFINE_ATTRIBUTE_EVENT_LISTENER(error);
     71     DEFINE_ATTRIBUTE_EVENT_LISTENER(pause);
     72     DEFINE_ATTRIBUTE_EVENT_LISTENER(resume);
     73     DEFINE_ATTRIBUTE_EVENT_LISTENER(mark);
     74     DEFINE_ATTRIBUTE_EVENT_LISTENER(boundary);
     75 
     76     virtual ExecutionContext* executionContext() const OVERRIDE;
     77 
     78     PlatformSpeechSynthesisUtterance* platformUtterance() const { return m_platformUtterance; }
     79 
     80     virtual void trace(Visitor*) OVERRIDE;
     81 
     82 private:
     83     SpeechSynthesisUtterance(ExecutionContext*, const String&);
     84     Member<PlatformSpeechSynthesisUtterance> m_platformUtterance;
     85     Member<SpeechSynthesisVoice> m_voice;
     86 
     87     // EventTarget
     88     virtual const AtomicString& interfaceName() const OVERRIDE;
     89 };
     90 
     91 } // namespace WebCore
     92 
     93 #endif // SpeechSynthesisUtterance_h
     94