2 * Copyright (C) 2006, 2007, 2009 Apple Inc. All rights reserved.
3 * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
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.
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.
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.
22 #include "PageGroupLoadDeferrer.h"
25 #include "DocumentParser.h"
28 #include "PageGroup.h"
29 #include "ScriptRunner.h"
30 #include <wtf/HashSet.h>
36 PageGroupLoadDeferrer::PageGroupLoadDeferrer(Page* page, bool deferSelf)
38 const HashSet<Page*>& pages = page->group().pages();
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());
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 // NOTE: if PageGroupLoadDeferrer is ever used for tasks other than showing a modal window or sheet,
50 // the constructor will need to take a ActiveDOMObject::ReasonForSuspension.
51 for (Frame* frame = otherPage->mainFrame(); frame; frame = frame->tree()->traverseNext()) {
52 frame->document()->suspendScriptedAnimationControllerCallbacks();
53 frame->document()->suspendActiveDOMObjects(ActiveDOMObject::WillShowDialog);
54 frame->document()->scriptRunner()->suspend();
55 if (DocumentParser* parser = frame->document()->parser())
56 parser->suspendScheduledTasks();
62 size_t count = m_deferredFrames.size();
63 for (size_t i = 0; i < count; ++i)
64 if (Page* page = m_deferredFrames[i]->page())
65 page->setDefersLoading(true);
68 PageGroupLoadDeferrer::~PageGroupLoadDeferrer()
70 for (size_t i = 0; i < m_deferredFrames.size(); ++i) {
71 if (Page* page = m_deferredFrames[i]->page()) {
72 page->setDefersLoading(false);
74 for (Frame* frame = page->mainFrame(); frame; frame = frame->tree()->traverseNext()) {
75 frame->document()->resumeActiveDOMObjects();
76 frame->document()->resumeScriptedAnimationControllerCallbacks();
77 frame->document()->scriptRunner()->resume();
78 if (DocumentParser* parser = frame->document()->parser())
79 parser->resumeScheduledTasks();
86 } // namespace WebCore