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/quota/DOMWindowQuota.h" 33 34#include "core/frame/LocalDOMWindow.h" 35#include "core/frame/LocalFrame.h" 36#include "modules/quota/DeprecatedStorageInfo.h" 37#include "wtf/PassRefPtr.h" 38 39namespace blink { 40 41DOMWindowQuota::DOMWindowQuota(LocalDOMWindow& window) 42 : DOMWindowProperty(window.frame()) 43{ 44} 45 46DEFINE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(DOMWindowQuota); 47 48const char* DOMWindowQuota::supplementName() 49{ 50 return "DOMWindowQuota"; 51} 52 53// static 54DOMWindowQuota& DOMWindowQuota::from(LocalDOMWindow& window) 55{ 56 DOMWindowQuota* supplement = static_cast<DOMWindowQuota*>(WillBeHeapSupplement<LocalDOMWindow>::from(window, supplementName())); 57 if (!supplement) { 58 supplement = new DOMWindowQuota(window); 59 provideTo(window, supplementName(), adoptPtrWillBeNoop(supplement)); 60 } 61 return *supplement; 62} 63 64// static 65DeprecatedStorageInfo* DOMWindowQuota::webkitStorageInfo(LocalDOMWindow& window) 66{ 67 return DOMWindowQuota::from(window).webkitStorageInfo(); 68} 69 70DeprecatedStorageInfo* DOMWindowQuota::webkitStorageInfo() const 71{ 72 if (!m_storageInfo && frame()) 73 m_storageInfo = DeprecatedStorageInfo::create(); 74 return m_storageInfo.get(); 75} 76 77void DOMWindowQuota::trace(Visitor* visitor) 78{ 79 visitor->trace(m_storageInfo); 80 WillBeHeapSupplement<LocalDOMWindow>::trace(visitor); 81 DOMWindowProperty::trace(visitor); 82} 83 84} // namespace blink 85