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      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 WebCore {
     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 WebCore
    102