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