src/third_party/WebKit/Source/platform/speech/PlatformSpeechSynthesizer.cpp

   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 #include "config.h"
  27 #include "platform/speech/PlatformSpeechSynthesizer.h"
  28
  29 #include "platform/exported/WebSpeechSynthesizerClientImpl.h"
  30 #include "platform/speech/PlatformSpeechSynthesisUtterance.h"
  31 #include "public/platform/Platform.h"
  32 #include "public/platform/WebSpeechSynthesisUtterance.h"
  33 #include "public/platform/WebSpeechSynthesizer.h"
  34 #include "public/platform/WebSpeechSynthesizerClient.h"
  35 #include "wtf/RetainPtr.h"
  36
  37 namespace blink {
  38
  39 PlatformSpeechSynthesizer* PlatformSpeechSynthesizer::create(PlatformSpeechSynthesizerClient* client)
  40 {
  41     PlatformSpeechSynthesizer* synthesizer = new PlatformSpeechSynthesizer(client);
  42     synthesizer->initializeVoiceList();
  43     return synthesizer;
  44 }
  45
  46 PlatformSpeechSynthesizer::PlatformSpeechSynthesizer(PlatformSpeechSynthesizerClient* client)
  47     : m_speechSynthesizerClient(client)
  48 {
  49     m_webSpeechSynthesizerClient = new WebSpeechSynthesizerClientImpl(this, client);
  50     m_webSpeechSynthesizer = adoptPtr(blink::Platform::current()->createSpeechSynthesizer(m_webSpeechSynthesizerClient));
  51 }
  52
  53 PlatformSpeechSynthesizer::~PlatformSpeechSynthesizer()
  54 {
  55 }
  56
  57 void PlatformSpeechSynthesizer::speak(PlatformSpeechSynthesisUtterance* utterance)
  58 {
  59     if (!m_webSpeechSynthesizer || !m_webSpeechSynthesizerClient)
  60         return;
  61
  62     m_webSpeechSynthesizer->speak(blink::WebSpeechSynthesisUtterance(utterance));
  63 }
  64
  65 void PlatformSpeechSynthesizer::pause()
  66 {
  67     if (m_webSpeechSynthesizer.get())
  68         m_webSpeechSynthesizer->pause();
  69 }
  70
  71 void PlatformSpeechSynthesizer::resume()
  72 {
  73     if (m_webSpeechSynthesizer.get())
  74         m_webSpeechSynthesizer->resume();
  75 }
  76
  77 void PlatformSpeechSynthesizer::cancel()
  78 {
  79     if (m_webSpeechSynthesizer.get())
  80         m_webSpeechSynthesizer->cancel();
  81 }
  82
  83 void PlatformSpeechSynthesizer::setVoiceList(HeapVector<Member<PlatformSpeechSynthesisVoice> >& voices)
  84 {
  85     m_voiceList = voices;
  86 }
  87
  88 void PlatformSpeechSynthesizer::initializeVoiceList()
  89 {
  90     if (m_webSpeechSynthesizer.get())
  91         m_webSpeechSynthesizer->updateVoiceList();
  92 }
  93
  94 void PlatformSpeechSynthesizer::trace(Visitor* visitor)
  95 {
  96     visitor->trace(m_speechSynthesizerClient);
  97     visitor->trace(m_voiceList);
  98     visitor->trace(m_webSpeechSynthesizerClient);
  99 }
 100
 101 } // namespace blink