15f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian/* 25f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian * Copyright (C) 2006, 2007, 2009 Apple Inc. All rights reserved. 35f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies) 45f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian * 55f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian * This library is free software; you can redistribute it and/or 65f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian * modify it under the terms of the GNU Library General Public 75f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian * License as published by the Free Software Foundation; either 85f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian * version 2 of the License, or (at your option) any later version. 95f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian * 105f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian * This library is distributed in the hope that it will be useful, 115f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian * but WITHOUT ANY WARRANTY; without even the implied warranty of 125f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 135f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian * Library General Public License for more details. 145f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian * 155f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian * You should have received a copy of the GNU Library General Public License 165f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian * along with this library; see the file COPYING.LIB. If not, write to 175f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 185f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian * Boston, MA 02110-1301, USA. 195f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian */ 205f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 215f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian#include "config.h" 225f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian#include "PageGroupLoadDeferrer.h" 235f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 24cad810f21b803229eb11403f9209855525a25d57Steve Block#include "DocumentParser.h" 255f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian#include "Frame.h" 265f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian#include "Page.h" 275f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian#include "PageGroup.h" 282bde8e466a4451c7319e3a072d118917957d6554Steve Block#include "ScriptRunner.h" 295f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian#include <wtf/HashSet.h> 305f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 315f1ab04193ad0130ca8204aadaceae083aca9881Feng Qiannamespace WebCore { 325f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 335f1ab04193ad0130ca8204aadaceae083aca9881Feng Qianusing namespace std; 345f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 355f1ab04193ad0130ca8204aadaceae083aca9881Feng QianPageGroupLoadDeferrer::PageGroupLoadDeferrer(Page* page, bool deferSelf) 365f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian{ 375f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian const HashSet<Page*>& pages = page->group().pages(); 385f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 395f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian HashSet<Page*>::const_iterator end = pages.end(); 405f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian for (HashSet<Page*>::const_iterator it = pages.begin(); it != end; ++it) { 415f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian Page* otherPage = *it; 422bde8e466a4451c7319e3a072d118917957d6554Steve Block if ((deferSelf || otherPage != page)) { 432bde8e466a4451c7319e3a072d118917957d6554Steve Block if (!otherPage->defersLoading()) { 442bde8e466a4451c7319e3a072d118917957d6554Steve Block m_deferredFrames.append(otherPage->mainFrame()); 452bde8e466a4451c7319e3a072d118917957d6554Steve Block 462bde8e466a4451c7319e3a072d118917957d6554Steve Block // This code is not logically part of load deferring, but we do not want JS code executed beneath modal 472bde8e466a4451c7319e3a072d118917957d6554Steve Block // windows or sheets, which is exactly when PageGroupLoadDeferrer is used. 482bde8e466a4451c7319e3a072d118917957d6554Steve Block // NOTE: if PageGroupLoadDeferrer is ever used for tasks other than showing a modal window or sheet, 492bde8e466a4451c7319e3a072d118917957d6554Steve Block // the constructor will need to take a ActiveDOMObject::ReasonForSuspension. 502bde8e466a4451c7319e3a072d118917957d6554Steve Block for (Frame* frame = otherPage->mainFrame(); frame; frame = frame->tree()->traverseNext()) { 512bde8e466a4451c7319e3a072d118917957d6554Steve Block frame->document()->suspendScriptedAnimationControllerCallbacks(); 522bde8e466a4451c7319e3a072d118917957d6554Steve Block frame->document()->suspendActiveDOMObjects(ActiveDOMObject::WillShowDialog); 532bde8e466a4451c7319e3a072d118917957d6554Steve Block frame->document()->scriptRunner()->suspend(); 542bde8e466a4451c7319e3a072d118917957d6554Steve Block if (DocumentParser* parser = frame->document()->parser()) 552bde8e466a4451c7319e3a072d118917957d6554Steve Block parser->suspendScheduledTasks(); 562bde8e466a4451c7319e3a072d118917957d6554Steve Block } 572bde8e466a4451c7319e3a072d118917957d6554Steve Block } 582bde8e466a4451c7319e3a072d118917957d6554Steve Block } 595f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian } 605f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 615f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian size_t count = m_deferredFrames.size(); 625f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian for (size_t i = 0; i < count; ++i) 635f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian if (Page* page = m_deferredFrames[i]->page()) 645f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian page->setDefersLoading(true); 655f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian} 665f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 675f1ab04193ad0130ca8204aadaceae083aca9881Feng QianPageGroupLoadDeferrer::~PageGroupLoadDeferrer() 685f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian{ 695f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian for (size_t i = 0; i < m_deferredFrames.size(); ++i) { 702bde8e466a4451c7319e3a072d118917957d6554Steve Block if (Page* page = m_deferredFrames[i]->page()) { 715f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian page->setDefersLoading(false); 722bde8e466a4451c7319e3a072d118917957d6554Steve Block 732bde8e466a4451c7319e3a072d118917957d6554Steve Block for (Frame* frame = page->mainFrame(); frame; frame = frame->tree()->traverseNext()) { 742bde8e466a4451c7319e3a072d118917957d6554Steve Block frame->document()->resumeActiveDOMObjects(); 752bde8e466a4451c7319e3a072d118917957d6554Steve Block frame->document()->resumeScriptedAnimationControllerCallbacks(); 762bde8e466a4451c7319e3a072d118917957d6554Steve Block frame->document()->scriptRunner()->resume(); 772bde8e466a4451c7319e3a072d118917957d6554Steve Block if (DocumentParser* parser = frame->document()->parser()) 782bde8e466a4451c7319e3a072d118917957d6554Steve Block parser->resumeScheduledTasks(); 792bde8e466a4451c7319e3a072d118917957d6554Steve Block } 802bde8e466a4451c7319e3a072d118917957d6554Steve Block } 815f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian } 825f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian} 835f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 845f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 855f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian} // namespace WebCore 86