1/* 2 * Copyright (C) 2011, 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 met: 6 * 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 GOOGLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND 14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16 * ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE 17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 19 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 20 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH 23 * DAMAGE. 24 */ 25 26#include "config.h" 27#include "DOMWindowIndexedDatabase.h" 28 29#if ENABLE(INDEXED_DATABASE) 30 31#include "DOMWindow.h" 32#include "Document.h" 33#include "IDBFactory.h" 34#include "Page.h" 35#include "PageGroupIndexedDatabase.h" 36#include "SecurityOrigin.h" 37 38namespace WebCore { 39 40DOMWindowIndexedDatabase::DOMWindowIndexedDatabase(DOMWindow* window) 41 : DOMWindowProperty(window->frame()) 42 , m_window(window) 43{ 44} 45 46DOMWindowIndexedDatabase::~DOMWindowIndexedDatabase() 47{ 48} 49 50const char* DOMWindowIndexedDatabase::supplementName() 51{ 52 return "DOMWindowIndexedDatabase"; 53} 54 55DOMWindowIndexedDatabase* DOMWindowIndexedDatabase::from(DOMWindow* window) 56{ 57 DOMWindowIndexedDatabase* supplement = static_cast<DOMWindowIndexedDatabase*>(Supplement<DOMWindow>::from(window, supplementName())); 58 if (!supplement) { 59 supplement = new DOMWindowIndexedDatabase(window); 60 provideTo(window, supplementName(), adoptPtr(supplement)); 61 } 62 return supplement; 63} 64 65void DOMWindowIndexedDatabase::disconnectFrameForPageCache() 66{ 67 m_suspendedIDBFactory = m_idbFactory.release(); 68 DOMWindowProperty::disconnectFrameForPageCache(); 69} 70 71void DOMWindowIndexedDatabase::reconnectFrameFromPageCache(Frame* frame) 72{ 73 DOMWindowProperty::reconnectFrameFromPageCache(frame); 74 m_idbFactory = m_suspendedIDBFactory.release(); 75} 76 77void DOMWindowIndexedDatabase::willDestroyGlobalObjectInCachedFrame() 78{ 79 m_suspendedIDBFactory = nullptr; 80 DOMWindowProperty::willDestroyGlobalObjectInCachedFrame(); 81} 82 83void DOMWindowIndexedDatabase::willDestroyGlobalObjectInFrame() 84{ 85 m_idbFactory = nullptr; 86 DOMWindowProperty::willDestroyGlobalObjectInFrame(); 87} 88 89void DOMWindowIndexedDatabase::willDetachGlobalObjectFromFrame() 90{ 91 m_idbFactory = nullptr; 92 DOMWindowProperty::willDetachGlobalObjectFromFrame(); 93} 94 95IDBFactory* DOMWindowIndexedDatabase::indexedDB(DOMWindow* window) 96{ 97 return from(window)->indexedDB(); 98} 99 100IDBFactory* DOMWindowIndexedDatabase::indexedDB() 101{ 102 Document* document = m_window->document(); 103 if (!document) 104 return 0; 105 106 Page* page = document->page(); 107 if (!page) 108 return 0; 109 110 if (!m_window->isCurrentlyDisplayedInFrame()) 111 return 0; 112 113 if (!m_idbFactory) 114 m_idbFactory = IDBFactory::create(PageGroupIndexedDatabase::from(page->group())->factoryBackend()); 115 return m_idbFactory.get(); 116} 117 118} // namespace WebCore 119 120#endif // ENABLE(INDEXED_DATABASE) 121