1/* 2 * Copyright (C) 2006, 2007, 2009 Apple Inc. All rights reserved. 3 * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies) 4 * 5 * This library is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU Library General Public 7 * License as published by the Free Software Foundation; either 8 * version 2 of the License, or (at your option) any later version. 9 * 10 * This library is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * Library General Public License for more details. 14 * 15 * You should have received a copy of the GNU Library General Public License 16 * along with this library; see the file COPYING.LIB. If not, write to 17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 18 * Boston, MA 02110-1301, USA. 19 */ 20 21#include "config.h" 22#include "PageGroupLoadDeferrer.h" 23 24#include "Document.h" 25#include "DocumentParser.h" 26#include "Frame.h" 27#include "Page.h" 28#include "PageGroup.h" 29#include "ScriptRunner.h" 30#include <wtf/HashSet.h> 31 32namespace WebCore { 33 34using namespace std; 35 36PageGroupLoadDeferrer::PageGroupLoadDeferrer(Page* page, bool deferSelf) 37{ 38 const HashSet<Page*>& pages = page->group().pages(); 39 40 HashSet<Page*>::const_iterator end = pages.end(); 41 for (HashSet<Page*>::const_iterator it = pages.begin(); it != end; ++it) { 42 Page* otherPage = *it; 43 if ((deferSelf || otherPage != page)) { 44 if (!otherPage->defersLoading()) { 45 m_deferredFrames.append(otherPage->mainFrame()); 46 47 // This code is not logically part of load deferring, but we do not want JS code executed beneath modal 48 // windows or sheets, which is exactly when PageGroupLoadDeferrer is used. 49 for (Frame* frame = otherPage->mainFrame(); frame; frame = frame->tree()->traverseNext()) 50 frame->document()->suspendScheduledTasks(ActiveDOMObject::WillDeferLoading); 51 } 52 } 53 } 54 55 size_t count = m_deferredFrames.size(); 56 for (size_t i = 0; i < count; ++i) 57 if (Page* page = m_deferredFrames[i]->page()) 58 page->setDefersLoading(true); 59} 60 61PageGroupLoadDeferrer::~PageGroupLoadDeferrer() 62{ 63 for (size_t i = 0; i < m_deferredFrames.size(); ++i) { 64 if (Page* page = m_deferredFrames[i]->page()) { 65 page->setDefersLoading(false); 66 67 for (Frame* frame = page->mainFrame(); frame; frame = frame->tree()->traverseNext()) 68 frame->document()->resumeScheduledTasks(ActiveDOMObject::WillDeferLoading); 69 } 70 } 71} 72 73 74} // namespace WebCore 75