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/*
* Copyright (C) 2006, 2007, 2009 Apple Inc. All rights reserved.
* Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include "core/page/ScopedPageLoadDeferrer.h"
#include "core/dom/Document.h"
#include "core/frame/LocalFrame.h"
#include "core/loader/FrameLoader.h"
#include "core/page/Page.h"
#include "wtf/HashSet.h"
namespace WebCore {
ScopedPageLoadDeferrer::ScopedPageLoadDeferrer(Page* exclusion)
{
const HashSet<Page*>& pages = Page::ordinaryPages();
HashSet<Page*>::const_iterator end = pages.end();
for (HashSet<Page*>::const_iterator it = pages.begin(); it != end; ++it) {
Page* page = *it;
if (page == exclusion || page->defersLoading())
continue;
if (page->mainFrame()->isLocalFrame()) {
m_deferredFrames.append(page->deprecatedLocalMainFrame());
// Ensure that we notify the client if the initial empty document is accessed before
// showing anything modal, to prevent spoofs while the modal window or sheet is visible.
page->deprecatedLocalMainFrame()->loader().notifyIfInitialDocumentAccessed();
}
// This code is not logically part of load deferring, but we do not want JS code executed
// beneath modal windows or sheets, which is exactly when ScopedPageLoadDeferrer is used.
for (Frame* frame = page->mainFrame(); frame; frame = frame->tree().traverseNext()) {
if (frame->isLocalFrame())
toLocalFrame(frame)->document()->suspendScheduledTasks();
}
}
size_t count = m_deferredFrames.size();
for (size_t i = 0; i < count; ++i) {
if (Page* page = m_deferredFrames[i]->page())
page->setDefersLoading(true);
}
}
ScopedPageLoadDeferrer::~ScopedPageLoadDeferrer()
{
for (size_t i = 0; i < m_deferredFrames.size(); ++i) {
if (Page* page = m_deferredFrames[i]->page()) {
page->setDefersLoading(false);
for (Frame* frame = page->mainFrame(); frame; frame = frame->tree().traverseNext()) {
if (frame->isLocalFrame())
toLocalFrame(frame)->document()->resumeScheduledTasks();
}
}
}
}
} // namespace WebCore
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