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 auto newSupplement = std::make_unique<DOMWindowIndexedDatabase>(window); 60 supplement = newSupplement.get(); 61 provideTo(window, supplementName(), WTF::move(newSupplement)); 62 } 63 return supplement; 64} 65 66void DOMWindowIndexedDatabase::disconnectFrameForPageCache() 67{ 68 m_suspendedIDBFactory = m_idbFactory.release(); 69 DOMWindowProperty::disconnectFrameForPageCache(); 70} 71 72void DOMWindowIndexedDatabase::reconnectFrameFromPageCache(Frame* frame) 73{ 74 DOMWindowProperty::reconnectFrameFromPageCache(frame); 75 m_idbFactory = m_suspendedIDBFactory.release(); 76} 77 78void DOMWindowIndexedDatabase::willDestroyGlobalObjectInCachedFrame() 79{ 80 m_suspendedIDBFactory = nullptr; 81 DOMWindowProperty::willDestroyGlobalObjectInCachedFrame(); 82} 83 84void DOMWindowIndexedDatabase::willDestroyGlobalObjectInFrame() 85{ 86 m_idbFactory = nullptr; 87 DOMWindowProperty::willDestroyGlobalObjectInFrame(); 88} 89 90void DOMWindowIndexedDatabase::willDetachGlobalObjectFromFrame() 91{ 92 m_idbFactory = nullptr; 93 DOMWindowProperty::willDetachGlobalObjectFromFrame(); 94} 95 96IDBFactory* DOMWindowIndexedDatabase::indexedDB(DOMWindow* window) 97{ 98 return from(window)->indexedDB(); 99} 100 101IDBFactory* DOMWindowIndexedDatabase::indexedDB() 102{ 103 Document* document = m_window->document(); 104 if (!document) 105 return 0; 106 107 Page* page = document->page(); 108 if (!page) 109 return 0; 110 111 if (!m_window->isCurrentlyDisplayedInFrame()) 112 return 0; 113 114 if (!m_idbFactory) 115 m_idbFactory = IDBFactory::create(PageGroupIndexedDatabase::from(page->group())->factoryBackend()); 116 return m_idbFactory.get(); 117} 118 119} // namespace WebCore 120 121#endif // ENABLE(INDEXED_DATABASE) 122