1/* 2 * Copyright (C) 2012 Google 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 are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31#include "config.h" 32#include "modules/speech/DOMWindowSpeechSynthesis.h" 33 34#include "core/frame/LocalDOMWindow.h" 35#include "core/frame/LocalFrame.h" 36#include "wtf/PassRefPtr.h" 37 38namespace blink { 39 40DOMWindowSpeechSynthesis::DOMWindowSpeechSynthesis(LocalDOMWindow& window) 41 : DOMWindowProperty(window.frame()) 42{ 43} 44 45DEFINE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(DOMWindowSpeechSynthesis); 46 47const char* DOMWindowSpeechSynthesis::supplementName() 48{ 49 return "DOMWindowSpeechSynthesis"; 50} 51 52// static 53DOMWindowSpeechSynthesis& DOMWindowSpeechSynthesis::from(LocalDOMWindow& window) 54{ 55 DOMWindowSpeechSynthesis* supplement = static_cast<DOMWindowSpeechSynthesis*>(WillBeHeapSupplement<LocalDOMWindow>::from(window, supplementName())); 56 if (!supplement) { 57 supplement = new DOMWindowSpeechSynthesis(window); 58 provideTo(window, supplementName(), adoptPtrWillBeNoop(supplement)); 59 } 60 return *supplement; 61} 62 63// static 64SpeechSynthesis* DOMWindowSpeechSynthesis::speechSynthesis(LocalDOMWindow& window) 65{ 66 return DOMWindowSpeechSynthesis::from(window).speechSynthesis(); 67} 68 69SpeechSynthesis* DOMWindowSpeechSynthesis::speechSynthesis() 70{ 71 if (!m_speechSynthesis && frame()) 72 m_speechSynthesis = SpeechSynthesis::create(frame()->domWindow()->executionContext()); 73 return m_speechSynthesis.get(); 74} 75 76void DOMWindowSpeechSynthesis::trace(Visitor* visitor) 77{ 78 visitor->trace(m_speechSynthesis); 79 WillBeHeapSupplement<LocalDOMWindow>::trace(visitor); 80 DOMWindowProperty::trace(visitor); 81} 82 83} // namespace blink 84