src/third_party/WebKit/Source/modules/speech/SpeechSynthesisUtterance.cpp

   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 #include "config.h"
  27 #include "modules/speech/SpeechSynthesisUtterance.h"
  28
  29 namespace blink {
  30
  31 SpeechSynthesisUtterance* SpeechSynthesisUtterance::create(ExecutionContext* context, const String& text)
  32 {
  33     return new SpeechSynthesisUtterance(context, text);
  34 }
  35
  36 SpeechSynthesisUtterance::SpeechSynthesisUtterance(ExecutionContext* context, const String& text)
  37     : ContextLifecycleObserver(context)
  38     , m_platformUtterance(PlatformSpeechSynthesisUtterance::create(this))
  39 {
  40     m_platformUtterance->setText(text);
  41 }
  42
  43 SpeechSynthesisUtterance::~SpeechSynthesisUtterance()
  44 {
  45 }
  46
  47 ExecutionContext* SpeechSynthesisUtterance::executionContext() const
  48 {
  49     return ContextLifecycleObserver::executionContext();
  50 }
  51
  52 const AtomicString& SpeechSynthesisUtterance::interfaceName() const
  53 {
  54     return EventTargetNames::SpeechSynthesisUtterance;
  55 }
  56
  57 SpeechSynthesisVoice* SpeechSynthesisUtterance::voice() const
  58 {
  59     return m_voice.get();
  60 }
  61
  62 void SpeechSynthesisUtterance::setVoice(SpeechSynthesisVoice* voice)
  63 {
  64     // Cache our own version of the SpeechSynthesisVoice so that we don't have to do some lookup
  65     // to go from the platform voice back to the speech synthesis voice in the read property.
  66     m_voice = voice;
  67
  68     if (voice)
  69         m_platformUtterance->setVoice(voice->platformVoice());
  70 }
  71
  72 void SpeechSynthesisUtterance::trace(Visitor* visitor)
  73 {
  74     visitor->trace(m_platformUtterance);
  75     visitor->trace(m_voice);
  76     EventTargetWithInlineData::trace(visitor);
  77 }
  78
  79 } // namespace blink