--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/3rdparty/webkit/WebCore/page/DOMWindow.cpp Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,1347 @@
+/*
+ * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "DOMWindow.h"
+
+#include "BarInfo.h"
+#include "BeforeUnloadEvent.h"
+#include "CSSComputedStyleDeclaration.h"
+#include "CSSRuleList.h"
+#include "CSSStyleSelector.h"
+#include "CString.h"
+#include "Chrome.h"
+#include "Console.h"
+#include "Database.h"
+#include "DOMApplicationCache.h"
+#include "DOMSelection.h"
+#include "DOMTimer.h"
+#include "PageTransitionEvent.h"
+#include "Document.h"
+#include "Element.h"
+#include "EventException.h"
+#include "EventListener.h"
+#include "EventNames.h"
+#include "ExceptionCode.h"
+#include "FloatRect.h"
+#include "Frame.h"
+#include "FrameLoader.h"
+#include "FrameTree.h"
+#include "FrameView.h"
+#include "HTMLFrameOwnerElement.h"
+#include "History.h"
+#include "InspectorController.h"
+#include "Location.h"
+#include "Media.h"
+#include "MessageEvent.h"
+#include "Navigator.h"
+#include "NotificationCenter.h"
+#include "Page.h"
+#include "PageGroup.h"
+#include "PlatformScreen.h"
+#include "PlatformString.h"
+#include "Screen.h"
+#include "SecurityOrigin.h"
+#include "SerializedScriptValue.h"
+#include "Settings.h"
+#include "Storage.h"
+#include "StorageArea.h"
+#include "StorageNamespace.h"
+#include "SuddenTermination.h"
+#include "WebKitPoint.h"
+#include <algorithm>
+#include <wtf/MathExtras.h>
+
+using std::min;
+using std::max;
+
+namespace WebCore {
+
+class PostMessageTimer : public TimerBase {
+public:
+ PostMessageTimer(DOMWindow* window, PassRefPtr<SerializedScriptValue> message, const String& sourceOrigin, PassRefPtr<DOMWindow> source, PassOwnPtr<MessagePortChannelArray> channels, SecurityOrigin* targetOrigin)
+ : m_window(window)
+ , m_message(message)
+ , m_origin(sourceOrigin)
+ , m_source(source)
+ , m_channels(channels)
+ , m_targetOrigin(targetOrigin)
+ {
+ }
+
+ PassRefPtr<MessageEvent> event(ScriptExecutionContext* context)
+ {
+ OwnPtr<MessagePortArray> messagePorts = MessagePort::entanglePorts(*context, m_channels.release());
+ return MessageEvent::create(messagePorts.release(), m_message, m_origin, "", m_source);
+ }
+ SecurityOrigin* targetOrigin() const { return m_targetOrigin.get(); }
+
+private:
+ virtual void fired()
+ {
+ m_window->postMessageTimerFired(this);
+ }
+
+ RefPtr<DOMWindow> m_window;
+ RefPtr<SerializedScriptValue> m_message;
+ String m_origin;
+ RefPtr<DOMWindow> m_source;
+ OwnPtr<MessagePortChannelArray> m_channels;
+ RefPtr<SecurityOrigin> m_targetOrigin;
+};
+
+typedef HashCountedSet<DOMWindow*> DOMWindowSet;
+
+static DOMWindowSet& windowsWithUnloadEventListeners()
+{
+ DEFINE_STATIC_LOCAL(DOMWindowSet, windowsWithUnloadEventListeners, ());
+ return windowsWithUnloadEventListeners;
+}
+
+static DOMWindowSet& windowsWithBeforeUnloadEventListeners()
+{
+ DEFINE_STATIC_LOCAL(DOMWindowSet, windowsWithBeforeUnloadEventListeners, ());
+ return windowsWithBeforeUnloadEventListeners;
+}
+
+static void addUnloadEventListener(DOMWindow* domWindow)
+{
+ DOMWindowSet& set = windowsWithUnloadEventListeners();
+ if (set.isEmpty())
+ disableSuddenTermination();
+ set.add(domWindow);
+}
+
+static void removeUnloadEventListener(DOMWindow* domWindow)
+{
+ DOMWindowSet& set = windowsWithUnloadEventListeners();
+ DOMWindowSet::iterator it = set.find(domWindow);
+ if (it == set.end())
+ return;
+ set.remove(it);
+ if (set.isEmpty())
+ enableSuddenTermination();
+}
+
+static void removeAllUnloadEventListeners(DOMWindow* domWindow)
+{
+ DOMWindowSet& set = windowsWithUnloadEventListeners();
+ DOMWindowSet::iterator it = set.find(domWindow);
+ if (it == set.end())
+ return;
+ set.removeAll(it);
+ if (set.isEmpty())
+ enableSuddenTermination();
+}
+
+static void addBeforeUnloadEventListener(DOMWindow* domWindow)
+{
+ DOMWindowSet& set = windowsWithBeforeUnloadEventListeners();
+ if (set.isEmpty())
+ disableSuddenTermination();
+ set.add(domWindow);
+}
+
+static void removeBeforeUnloadEventListener(DOMWindow* domWindow)
+{
+ DOMWindowSet& set = windowsWithBeforeUnloadEventListeners();
+ DOMWindowSet::iterator it = set.find(domWindow);
+ if (it == set.end())
+ return;
+ set.remove(it);
+ if (set.isEmpty())
+ enableSuddenTermination();
+}
+
+static void removeAllBeforeUnloadEventListeners(DOMWindow* domWindow)
+{
+ DOMWindowSet& set = windowsWithBeforeUnloadEventListeners();
+ DOMWindowSet::iterator it = set.find(domWindow);
+ if (it == set.end())
+ return;
+ set.removeAll(it);
+ if (set.isEmpty())
+ enableSuddenTermination();
+}
+
+static bool allowsBeforeUnloadListeners(DOMWindow* window)
+{
+ ASSERT_ARG(window, window);
+ Frame* frame = window->frame();
+ if (!frame)
+ return false;
+ Page* page = frame->page();
+ if (!page)
+ return false;
+ return frame == page->mainFrame();
+}
+
+bool DOMWindow::dispatchAllPendingBeforeUnloadEvents()
+{
+ DOMWindowSet& set = windowsWithBeforeUnloadEventListeners();
+ if (set.isEmpty())
+ return true;
+
+ static bool alreadyDispatched = false;
+ ASSERT(!alreadyDispatched);
+ if (alreadyDispatched)
+ return true;
+
+ Vector<RefPtr<DOMWindow> > windows;
+ DOMWindowSet::iterator end = set.end();
+ for (DOMWindowSet::iterator it = set.begin(); it != end; ++it)
+ windows.append(it->first);
+
+ size_t size = windows.size();
+ for (size_t i = 0; i < size; ++i) {
+ DOMWindow* window = windows[i].get();
+ if (!set.contains(window))
+ continue;
+
+ Frame* frame = window->frame();
+ if (!frame)
+ continue;
+
+ if (!frame->shouldClose())
+ return false;
+ }
+
+ enableSuddenTermination();
+
+ alreadyDispatched = true;
+
+ return true;
+}
+
+unsigned DOMWindow::pendingUnloadEventListeners() const
+{
+ return windowsWithUnloadEventListeners().count(const_cast<DOMWindow*>(this));
+}
+
+void DOMWindow::dispatchAllPendingUnloadEvents()
+{
+ DOMWindowSet& set = windowsWithUnloadEventListeners();
+ if (set.isEmpty())
+ return;
+
+ static bool alreadyDispatched = false;
+ ASSERT(!alreadyDispatched);
+ if (alreadyDispatched)
+ return;
+
+ Vector<RefPtr<DOMWindow> > windows;
+ DOMWindowSet::iterator end = set.end();
+ for (DOMWindowSet::iterator it = set.begin(); it != end; ++it)
+ windows.append(it->first);
+
+ size_t size = windows.size();
+ for (size_t i = 0; i < size; ++i) {
+ DOMWindow* window = windows[i].get();
+ if (!set.contains(window))
+ continue;
+
+ window->dispatchEvent(PageTransitionEvent::create(EventNames().pagehideEvent, false), window->document());
+ window->dispatchEvent(Event::create(eventNames().unloadEvent, false, false), window->document());
+ }
+
+ enableSuddenTermination();
+
+ alreadyDispatched = true;
+}
+
+// This function:
+// 1) Validates the pending changes are not changing to NaN
+// 2) Constrains the window rect to no smaller than 100 in each dimension and no
+// bigger than the the float rect's dimensions.
+// 3) Constrain window rect to within the top and left boundaries of the screen rect
+// 4) Constraint the window rect to within the bottom and right boundaries of the
+// screen rect.
+// 5) Translate the window rect coordinates to be within the coordinate space of
+// the screen rect.
+void DOMWindow::adjustWindowRect(const FloatRect& screen, FloatRect& window, const FloatRect& pendingChanges)
+{
+ // Make sure we're in a valid state before adjusting dimensions.
+ ASSERT(isfinite(screen.x()));
+ ASSERT(isfinite(screen.y()));
+ ASSERT(isfinite(screen.width()));
+ ASSERT(isfinite(screen.height()));
+ ASSERT(isfinite(window.x()));
+ ASSERT(isfinite(window.y()));
+ ASSERT(isfinite(window.width()));
+ ASSERT(isfinite(window.height()));
+
+ // Update window values if new requested values are not NaN.
+ if (!isnan(pendingChanges.x()))
+ window.setX(pendingChanges.x());
+ if (!isnan(pendingChanges.y()))
+ window.setY(pendingChanges.y());
+ if (!isnan(pendingChanges.width()))
+ window.setWidth(pendingChanges.width());
+ if (!isnan(pendingChanges.height()))
+ window.setHeight(pendingChanges.height());
+
+ // Resize the window to between 100 and the screen width and height.
+ window.setWidth(min(max(100.0f, window.width()), screen.width()));
+ window.setHeight(min(max(100.0f, window.height()), screen.height()));
+
+ // Constrain the window position to the screen.
+ window.setX(max(screen.x(), min(window.x(), screen.right() - window.width())));
+ window.setY(max(screen.y(), min(window.y(), screen.bottom() - window.height())));
+}
+
+void DOMWindow::parseModalDialogFeatures(const String& featuresArg, HashMap<String, String>& map)
+{
+ Vector<String> features;
+ featuresArg.split(';', features);
+ Vector<String>::const_iterator end = features.end();
+ for (Vector<String>::const_iterator it = features.begin(); it != end; ++it) {
+ String s = *it;
+ int pos = s.find('=');
+ int colonPos = s.find(':');
+ if (pos >= 0 && colonPos >= 0)
+ continue; // ignore any strings that have both = and :
+ if (pos < 0)
+ pos = colonPos;
+ if (pos < 0) {
+ // null string for value means key without value
+ map.set(s.stripWhiteSpace().lower(), String());
+ } else {
+ String key = s.left(pos).stripWhiteSpace().lower();
+ String val = s.substring(pos + 1).stripWhiteSpace().lower();
+ int spacePos = val.find(' ');
+ if (spacePos != -1)
+ val = val.left(spacePos);
+ map.set(key, val);
+ }
+ }
+}
+
+bool DOMWindow::allowPopUp(Frame* activeFrame)
+{
+ ASSERT(activeFrame);
+ if (activeFrame->script()->processingUserGesture())
+ return true;
+ Settings* settings = activeFrame->settings();
+ return settings && settings->javaScriptCanOpenWindowsAutomatically();
+}
+
+bool DOMWindow::canShowModalDialog(const Frame* frame)
+{
+ if (!frame)
+ return false;
+ Page* page = frame->page();
+ if (!page)
+ return false;
+ return page->chrome()->canRunModal();
+}
+
+bool DOMWindow::canShowModalDialogNow(const Frame* frame)
+{
+ if (!frame)
+ return false;
+ Page* page = frame->page();
+ if (!page)
+ return false;
+ return page->chrome()->canRunModalNow();
+}
+
+DOMWindow::DOMWindow(Frame* frame)
+ : m_frame(frame)
+{
+}
+
+DOMWindow::~DOMWindow()
+{
+ if (m_frame)
+ m_frame->clearFormerDOMWindow(this);
+
+ removeAllUnloadEventListeners(this);
+ removeAllBeforeUnloadEventListeners(this);
+}
+
+ScriptExecutionContext* DOMWindow::scriptExecutionContext() const
+{
+ return document();
+}
+
+void DOMWindow::disconnectFrame()
+{
+ m_frame = 0;
+ clear();
+}
+
+void DOMWindow::clear()
+{
+ if (m_screen)
+ m_screen->disconnectFrame();
+ m_screen = 0;
+
+ if (m_selection)
+ m_selection->disconnectFrame();
+ m_selection = 0;
+
+ if (m_history)
+ m_history->disconnectFrame();
+ m_history = 0;
+
+ if (m_locationbar)
+ m_locationbar->disconnectFrame();
+ m_locationbar = 0;
+
+ if (m_menubar)
+ m_menubar->disconnectFrame();
+ m_menubar = 0;
+
+ if (m_personalbar)
+ m_personalbar->disconnectFrame();
+ m_personalbar = 0;
+
+ if (m_scrollbars)
+ m_scrollbars->disconnectFrame();
+ m_scrollbars = 0;
+
+ if (m_statusbar)
+ m_statusbar->disconnectFrame();
+ m_statusbar = 0;
+
+ if (m_toolbar)
+ m_toolbar->disconnectFrame();
+ m_toolbar = 0;
+
+ if (m_console)
+ m_console->disconnectFrame();
+ m_console = 0;
+
+ if (m_navigator)
+ m_navigator->disconnectFrame();
+ m_navigator = 0;
+
+ if (m_location)
+ m_location->disconnectFrame();
+ m_location = 0;
+
+#if ENABLE(DOM_STORAGE)
+ if (m_sessionStorage)
+ m_sessionStorage->disconnectFrame();
+ m_sessionStorage = 0;
+
+ if (m_localStorage)
+ m_localStorage->disconnectFrame();
+ m_localStorage = 0;
+#endif
+
+#if ENABLE(OFFLINE_WEB_APPLICATIONS)
+ if (m_applicationCache)
+ m_applicationCache->disconnectFrame();
+ m_applicationCache = 0;
+#endif
+
+#if ENABLE(NOTIFICATIONS)
+ m_notifications = 0;
+#endif
+}
+
+#if ENABLE(ORIENTATION_EVENTS)
+int DOMWindow::orientation() const
+{
+ if (!m_frame)
+ return 0;
+
+ return m_frame->orientation();
+}
+#endif
+
+Screen* DOMWindow::screen() const
+{
+ if (!m_screen)
+ m_screen = Screen::create(m_frame);
+ return m_screen.get();
+}
+
+History* DOMWindow::history() const
+{
+ if (!m_history)
+ m_history = History::create(m_frame);
+ return m_history.get();
+}
+
+BarInfo* DOMWindow::locationbar() const
+{
+ if (!m_locationbar)
+ m_locationbar = BarInfo::create(m_frame, BarInfo::Locationbar);
+ return m_locationbar.get();
+}
+
+BarInfo* DOMWindow::menubar() const
+{
+ if (!m_menubar)
+ m_menubar = BarInfo::create(m_frame, BarInfo::Menubar);
+ return m_menubar.get();
+}
+
+BarInfo* DOMWindow::personalbar() const
+{
+ if (!m_personalbar)
+ m_personalbar = BarInfo::create(m_frame, BarInfo::Personalbar);
+ return m_personalbar.get();
+}
+
+BarInfo* DOMWindow::scrollbars() const
+{
+ if (!m_scrollbars)
+ m_scrollbars = BarInfo::create(m_frame, BarInfo::Scrollbars);
+ return m_scrollbars.get();
+}
+
+BarInfo* DOMWindow::statusbar() const
+{
+ if (!m_statusbar)
+ m_statusbar = BarInfo::create(m_frame, BarInfo::Statusbar);
+ return m_statusbar.get();
+}
+
+BarInfo* DOMWindow::toolbar() const
+{
+ if (!m_toolbar)
+ m_toolbar = BarInfo::create(m_frame, BarInfo::Toolbar);
+ return m_toolbar.get();
+}
+
+Console* DOMWindow::console() const
+{
+ if (!m_console)
+ m_console = Console::create(m_frame);
+ return m_console.get();
+}
+
+#if ENABLE(OFFLINE_WEB_APPLICATIONS)
+DOMApplicationCache* DOMWindow::applicationCache() const
+{
+ if (!m_applicationCache)
+ m_applicationCache = DOMApplicationCache::create(m_frame);
+ return m_applicationCache.get();
+}
+#endif
+
+Navigator* DOMWindow::navigator() const
+{
+ if (!m_navigator)
+ m_navigator = Navigator::create(m_frame);
+ return m_navigator.get();
+}
+
+Location* DOMWindow::location() const
+{
+ if (!m_location)
+ m_location = Location::create(m_frame);
+ return m_location.get();
+}
+
+#if ENABLE(DOM_STORAGE)
+Storage* DOMWindow::sessionStorage() const
+{
+ if (m_sessionStorage)
+ return m_sessionStorage.get();
+
+ Document* document = this->document();
+ if (!document)
+ return 0;
+
+ Page* page = document->page();
+ if (!page)
+ return 0;
+
+ if (!page->settings()->sessionStorageEnabled())
+ return 0;
+
+ RefPtr<StorageArea> storageArea = page->sessionStorage()->storageArea(document->securityOrigin());
+#if ENABLE(INSPECTOR)
+ page->inspectorController()->didUseDOMStorage(storageArea.get(), false, m_frame);
+#endif
+
+ m_sessionStorage = Storage::create(m_frame, storageArea.release());
+ return m_sessionStorage.get();
+}
+
+Storage* DOMWindow::localStorage() const
+{
+ if (m_localStorage)
+ return m_localStorage.get();
+
+ Document* document = this->document();
+ if (!document)
+ return 0;
+
+ Page* page = document->page();
+ if (!page)
+ return 0;
+
+ if (!page->settings()->localStorageEnabled())
+ return 0;
+
+ RefPtr<StorageArea> storageArea = page->group().localStorage()->storageArea(document->securityOrigin());
+#if ENABLE(INSPECTOR)
+ page->inspectorController()->didUseDOMStorage(storageArea.get(), true, m_frame);
+#endif
+
+ m_localStorage = Storage::create(m_frame, storageArea.release());
+ return m_localStorage.get();
+}
+#endif
+
+#if ENABLE(NOTIFICATIONS)
+NotificationCenter* DOMWindow::webkitNotifications() const
+{
+ if (m_notifications)
+ return m_notifications.get();
+
+ Document* document = this->document();
+ if (!document)
+ return 0;
+
+ Page* page = document->page();
+ if (!page)
+ return 0;
+
+ if (!page->settings()->experimentalNotificationsEnabled())
+ return 0;
+
+ NotificationPresenter* provider = page->chrome()->notificationPresenter();
+ if (provider)
+ m_notifications = NotificationCenter::create(document, provider);
+
+ return m_notifications.get();
+}
+#endif
+
+void DOMWindow::postMessage(PassRefPtr<SerializedScriptValue> message, MessagePort* port, const String& targetOrigin, DOMWindow* source, ExceptionCode& ec)
+{
+ MessagePortArray ports;
+ if (port)
+ ports.append(port);
+ postMessage(message, &ports, targetOrigin, source, ec);
+}
+
+void DOMWindow::postMessage(PassRefPtr<SerializedScriptValue> message, const MessagePortArray* ports, const String& targetOrigin, DOMWindow* source, ExceptionCode& ec)
+{
+ if (!m_frame)
+ return;
+
+ // Compute the target origin. We need to do this synchronously in order
+ // to generate the SYNTAX_ERR exception correctly.
+ RefPtr<SecurityOrigin> target;
+ if (targetOrigin != "*") {
+ target = SecurityOrigin::createFromString(targetOrigin);
+ if (target->isEmpty()) {
+ ec = SYNTAX_ERR;
+ return;
+ }
+ }
+
+ OwnPtr<MessagePortChannelArray> channels = MessagePort::disentanglePorts(ports, ec);
+ if (ec)
+ return;
+
+ // Capture the source of the message. We need to do this synchronously
+ // in order to capture the source of the message correctly.
+ Document* sourceDocument = source->document();
+ if (!sourceDocument)
+ return;
+ String sourceOrigin = sourceDocument->securityOrigin()->toString();
+
+ // Schedule the message.
+ PostMessageTimer* timer = new PostMessageTimer(this, message, sourceOrigin, source, channels.release(), target.get());
+ timer->startOneShot(0);
+}
+
+void DOMWindow::postMessageTimerFired(PostMessageTimer* t)
+{
+ OwnPtr<PostMessageTimer> timer(t);
+
+ if (!document())
+ return;
+
+ if (timer->targetOrigin()) {
+ // Check target origin now since the target document may have changed since the simer was scheduled.
+ if (!timer->targetOrigin()->isSameSchemeHostPort(document()->securityOrigin())) {
+ String message = String::format("Unable to post message to %s. Recipient has origin %s.\n",
+ timer->targetOrigin()->toString().utf8().data(), document()->securityOrigin()->toString().utf8().data());
+ console()->addMessage(JSMessageSource, LogMessageType, ErrorMessageLevel, message, 0, String());
+ return;
+ }
+ }
+
+ dispatchEvent(timer->event(document()));
+}
+
+DOMSelection* DOMWindow::getSelection()
+{
+ if (!m_selection)
+ m_selection = DOMSelection::create(m_frame);
+ return m_selection.get();
+}
+
+Element* DOMWindow::frameElement() const
+{
+ if (!m_frame)
+ return 0;
+
+ return m_frame->ownerElement();
+}
+
+void DOMWindow::focus()
+{
+ if (!m_frame)
+ return;
+
+ m_frame->focusWindow();
+}
+
+void DOMWindow::blur()
+{
+ if (!m_frame)
+ return;
+
+ m_frame->unfocusWindow();
+}
+
+void DOMWindow::close()
+{
+ if (!m_frame)
+ return;
+
+ Page* page = m_frame->page();
+ if (!page)
+ return;
+
+ if (m_frame != page->mainFrame())
+ return;
+
+ Settings* settings = m_frame->settings();
+ bool allowScriptsToCloseWindows = settings && settings->allowScriptsToCloseWindows();
+
+ if (page->openedByDOM() || page->getHistoryLength() <= 1 || allowScriptsToCloseWindows)
+ m_frame->scheduleClose();
+}
+
+void DOMWindow::print()
+{
+ if (!m_frame)
+ return;
+
+ Page* page = m_frame->page();
+ if (!page)
+ return;
+
+ page->chrome()->print(m_frame);
+}
+
+void DOMWindow::stop()
+{
+ if (!m_frame)
+ return;
+
+ // We must check whether the load is complete asynchronously, because we might still be parsing
+ // the document until the callstack unwinds.
+ m_frame->loader()->stopForUserCancel(true);
+}
+
+void DOMWindow::alert(const String& message)
+{
+ if (!m_frame)
+ return;
+
+ m_frame->document()->updateStyleIfNeeded();
+
+ Page* page = m_frame->page();
+ if (!page)
+ return;
+
+ page->chrome()->runJavaScriptAlert(m_frame, message);
+}
+
+bool DOMWindow::confirm(const String& message)
+{
+ if (!m_frame)
+ return false;
+
+ m_frame->document()->updateStyleIfNeeded();
+
+ Page* page = m_frame->page();
+ if (!page)
+ return false;
+
+ return page->chrome()->runJavaScriptConfirm(m_frame, message);
+}
+
+String DOMWindow::prompt(const String& message, const String& defaultValue)
+{
+ if (!m_frame)
+ return String();
+
+ m_frame->document()->updateStyleIfNeeded();
+
+ Page* page = m_frame->page();
+ if (!page)
+ return String();
+
+ String returnValue;
+ if (page->chrome()->runJavaScriptPrompt(m_frame, message, defaultValue, returnValue))
+ return returnValue;
+
+ return String();
+}
+
+bool DOMWindow::find(const String& string, bool caseSensitive, bool backwards, bool wrap, bool /*wholeWord*/, bool /*searchInFrames*/, bool /*showDialog*/) const
+{
+ if (!m_frame)
+ return false;
+
+ // FIXME (13016): Support wholeWord, searchInFrames and showDialog
+ return m_frame->findString(string, !backwards, caseSensitive, wrap, false);
+}
+
+bool DOMWindow::offscreenBuffering() const
+{
+ return true;
+}
+
+int DOMWindow::outerHeight() const
+{
+ if (!m_frame)
+ return 0;
+
+ Page* page = m_frame->page();
+ if (!page)
+ return 0;
+
+ return static_cast<int>(page->chrome()->windowRect().height());
+}
+
+int DOMWindow::outerWidth() const
+{
+ if (!m_frame)
+ return 0;
+
+ Page* page = m_frame->page();
+ if (!page)
+ return 0;
+
+ return static_cast<int>(page->chrome()->windowRect().width());
+}
+
+int DOMWindow::innerHeight() const
+{
+ if (!m_frame)
+ return 0;
+
+ FrameView* view = m_frame->view();
+ if (!view)
+ return 0;
+
+ return static_cast<int>(view->height() / m_frame->pageZoomFactor());
+}
+
+int DOMWindow::innerWidth() const
+{
+ if (!m_frame)
+ return 0;
+
+ FrameView* view = m_frame->view();
+ if (!view)
+ return 0;
+
+ return static_cast<int>(view->width() / m_frame->pageZoomFactor());
+}
+
+int DOMWindow::screenX() const
+{
+ if (!m_frame)
+ return 0;
+
+ Page* page = m_frame->page();
+ if (!page)
+ return 0;
+
+ return static_cast<int>(page->chrome()->windowRect().x());
+}
+
+int DOMWindow::screenY() const
+{
+ if (!m_frame)
+ return 0;
+
+ Page* page = m_frame->page();
+ if (!page)
+ return 0;
+
+ return static_cast<int>(page->chrome()->windowRect().y());
+}
+
+int DOMWindow::scrollX() const
+{
+ if (!m_frame)
+ return 0;
+
+ FrameView* view = m_frame->view();
+ if (!view)
+ return 0;
+
+ m_frame->document()->updateLayoutIgnorePendingStylesheets();
+
+ return static_cast<int>(view->scrollX() / m_frame->pageZoomFactor());
+}
+
+int DOMWindow::scrollY() const
+{
+ if (!m_frame)
+ return 0;
+
+ FrameView* view = m_frame->view();
+ if (!view)
+ return 0;
+
+ m_frame->document()->updateLayoutIgnorePendingStylesheets();
+
+ return static_cast<int>(view->scrollY() / m_frame->pageZoomFactor());
+}
+
+bool DOMWindow::closed() const
+{
+ return !m_frame;
+}
+
+unsigned DOMWindow::length() const
+{
+ if (!m_frame)
+ return 0;
+
+ return m_frame->tree()->childCount();
+}
+
+String DOMWindow::name() const
+{
+ if (!m_frame)
+ return String();
+
+ return m_frame->tree()->name();
+}
+
+void DOMWindow::setName(const String& string)
+{
+ if (!m_frame)
+ return;
+
+ m_frame->tree()->setName(string);
+}
+
+String DOMWindow::status() const
+{
+ if (!m_frame)
+ return String();
+
+ return m_frame->jsStatusBarText();
+}
+
+void DOMWindow::setStatus(const String& string)
+{
+ if (!m_frame)
+ return;
+
+ m_frame->setJSStatusBarText(string);
+}
+
+String DOMWindow::defaultStatus() const
+{
+ if (!m_frame)
+ return String();
+
+ return m_frame->jsDefaultStatusBarText();
+}
+
+void DOMWindow::setDefaultStatus(const String& string)
+{
+ if (!m_frame)
+ return;
+
+ m_frame->setJSDefaultStatusBarText(string);
+}
+
+DOMWindow* DOMWindow::self() const
+{
+ if (!m_frame)
+ return 0;
+
+ return m_frame->domWindow();
+}
+
+DOMWindow* DOMWindow::opener() const
+{
+ if (!m_frame)
+ return 0;
+
+ Frame* opener = m_frame->loader()->opener();
+ if (!opener)
+ return 0;
+
+ return opener->domWindow();
+}
+
+DOMWindow* DOMWindow::parent() const
+{
+ if (!m_frame)
+ return 0;
+
+ Frame* parent = m_frame->tree()->parent(true);
+ if (parent)
+ return parent->domWindow();
+
+ return m_frame->domWindow();
+}
+
+DOMWindow* DOMWindow::top() const
+{
+ if (!m_frame)
+ return 0;
+
+ Page* page = m_frame->page();
+ if (!page)
+ return 0;
+
+ return m_frame->tree()->top(true)->domWindow();
+}
+
+Document* DOMWindow::document() const
+{
+ // FIXME: This function shouldn't need a frame to work.
+ if (!m_frame)
+ return 0;
+
+ // The m_frame pointer is not zeroed out when the window is put into b/f cache, so it can hold an unrelated document/window pair.
+ // FIXME: We should always zero out the frame pointer on navigation to avoid accidentally accessing the new frame content.
+ if (m_frame->domWindow() != this)
+ return 0;
+
+ ASSERT(m_frame->document());
+ return m_frame->document();
+}
+
+PassRefPtr<Media> DOMWindow::media() const
+{
+ return Media::create(const_cast<DOMWindow*>(this));
+}
+
+PassRefPtr<CSSStyleDeclaration> DOMWindow::getComputedStyle(Element* elt, const String&) const
+{
+ if (!elt)
+ return 0;
+
+ // FIXME: This needs take pseudo elements into account.
+ return computedStyle(elt);
+}
+
+PassRefPtr<CSSRuleList> DOMWindow::getMatchedCSSRules(Element* elt, const String& pseudoElt, bool authorOnly) const
+{
+ if (!m_frame)
+ return 0;
+
+ Document* doc = m_frame->document();
+
+ if (!pseudoElt.isEmpty())
+ return doc->styleSelector()->pseudoStyleRulesForElement(elt, pseudoElt, authorOnly);
+ return doc->styleSelector()->styleRulesForElement(elt, authorOnly);
+}
+
+PassRefPtr<WebKitPoint> DOMWindow::webkitConvertPointFromNodeToPage(Node* node, const WebKitPoint* p) const
+{
+ if (!node || !p)
+ return 0;
+
+ FloatPoint pagePoint(p->x(), p->y());
+ pagePoint = node->convertToPage(pagePoint);
+ return WebKitPoint::create(pagePoint.x(), pagePoint.y());
+}
+
+PassRefPtr<WebKitPoint> DOMWindow::webkitConvertPointFromPageToNode(Node* node, const WebKitPoint* p) const
+{
+ if (!node || !p)
+ return 0;
+
+ FloatPoint nodePoint(p->x(), p->y());
+ nodePoint = node->convertFromPage(nodePoint);
+ return WebKitPoint::create(nodePoint.x(), nodePoint.y());
+}
+
+double DOMWindow::devicePixelRatio() const
+{
+ if (!m_frame)
+ return 0.0;
+
+ Page* page = m_frame->page();
+ if (!page)
+ return 0.0;
+
+ return page->chrome()->scaleFactor();
+}
+
+#if ENABLE(DATABASE)
+PassRefPtr<Database> DOMWindow::openDatabase(const String& name, const String& version, const String& displayName, unsigned long estimatedSize, ExceptionCode& ec)
+{
+ if (!m_frame)
+ return 0;
+
+ Document* doc = m_frame->document();
+
+ Settings* settings = m_frame->settings();
+ if (!settings || !settings->databasesEnabled())
+ return 0;
+
+ return Database::openDatabase(doc, name, version, displayName, estimatedSize, ec);
+}
+#endif
+
+void DOMWindow::scrollBy(int x, int y) const
+{
+ if (!m_frame)
+ return;
+
+ m_frame->document()->updateLayoutIgnorePendingStylesheets();
+
+ FrameView* view = m_frame->view();
+ if (!view)
+ return;
+
+ view->scrollBy(IntSize(x, y));
+}
+
+void DOMWindow::scrollTo(int x, int y) const
+{
+ if (!m_frame)
+ return;
+
+ m_frame->document()->updateLayoutIgnorePendingStylesheets();
+
+ FrameView* view = m_frame->view();
+ if (!view)
+ return;
+
+ int zoomedX = static_cast<int>(x * m_frame->pageZoomFactor());
+ int zoomedY = static_cast<int>(y * m_frame->pageZoomFactor());
+ view->setScrollPosition(IntPoint(zoomedX, zoomedY));
+}
+
+void DOMWindow::moveBy(float x, float y) const
+{
+ if (!m_frame)
+ return;
+
+ Page* page = m_frame->page();
+ if (!page)
+ return;
+
+ if (m_frame != page->mainFrame())
+ return;
+
+ FloatRect fr = page->chrome()->windowRect();
+ FloatRect update = fr;
+ update.move(x, y);
+ // Security check (the spec talks about UniversalBrowserWrite to disable this check...)
+ adjustWindowRect(screenAvailableRect(page->mainFrame()->view()), fr, update);
+ page->chrome()->setWindowRect(fr);
+}
+
+void DOMWindow::moveTo(float x, float y) const
+{
+ if (!m_frame)
+ return;
+
+ Page* page = m_frame->page();
+ if (!page)
+ return;
+
+ if (m_frame != page->mainFrame())
+ return;
+
+ FloatRect fr = page->chrome()->windowRect();
+ FloatRect sr = screenAvailableRect(page->mainFrame()->view());
+ fr.setLocation(sr.location());
+ FloatRect update = fr;
+ update.move(x, y);
+ // Security check (the spec talks about UniversalBrowserWrite to disable this check...)
+ adjustWindowRect(sr, fr, update);
+ page->chrome()->setWindowRect(fr);
+}
+
+void DOMWindow::resizeBy(float x, float y) const
+{
+ if (!m_frame)
+ return;
+
+ Page* page = m_frame->page();
+ if (!page)
+ return;
+
+ if (m_frame != page->mainFrame())
+ return;
+
+ FloatRect fr = page->chrome()->windowRect();
+ FloatSize dest = fr.size() + FloatSize(x, y);
+ FloatRect update(fr.location(), dest);
+ adjustWindowRect(screenAvailableRect(page->mainFrame()->view()), fr, update);
+ page->chrome()->setWindowRect(fr);
+}
+
+void DOMWindow::resizeTo(float width, float height) const
+{
+ if (!m_frame)
+ return;
+
+ Page* page = m_frame->page();
+ if (!page)
+ return;
+
+ if (m_frame != page->mainFrame())
+ return;
+
+ FloatRect fr = page->chrome()->windowRect();
+ FloatSize dest = FloatSize(width, height);
+ FloatRect update(fr.location(), dest);
+ adjustWindowRect(screenAvailableRect(page->mainFrame()->view()), fr, update);
+ page->chrome()->setWindowRect(fr);
+}
+
+int DOMWindow::setTimeout(ScheduledAction* action, int timeout)
+{
+ return DOMTimer::install(scriptExecutionContext(), action, timeout, true);
+}
+
+void DOMWindow::clearTimeout(int timeoutId)
+{
+ DOMTimer::removeById(scriptExecutionContext(), timeoutId);
+}
+
+int DOMWindow::setInterval(ScheduledAction* action, int timeout)
+{
+ return DOMTimer::install(scriptExecutionContext(), action, timeout, false);
+}
+
+void DOMWindow::clearInterval(int timeoutId)
+{
+ DOMTimer::removeById(scriptExecutionContext(), timeoutId);
+}
+
+bool DOMWindow::addEventListener(const AtomicString& eventType, PassRefPtr<EventListener> listener, bool useCapture)
+{
+ if (!EventTarget::addEventListener(eventType, listener, useCapture))
+ return false;
+
+ if (Document* document = this->document())
+ document->addListenerTypeIfNeeded(eventType);
+
+ if (eventType == eventNames().unloadEvent)
+ addUnloadEventListener(this);
+ else if (eventType == eventNames().beforeunloadEvent && allowsBeforeUnloadListeners(this))
+ addBeforeUnloadEventListener(this);
+
+ return true;
+}
+
+bool DOMWindow::removeEventListener(const AtomicString& eventType, EventListener* listener, bool useCapture)
+{
+ if (!EventTarget::removeEventListener(eventType, listener, useCapture))
+ return false;
+
+ if (eventType == eventNames().unloadEvent)
+ removeUnloadEventListener(this);
+ else if (eventType == eventNames().beforeunloadEvent && allowsBeforeUnloadListeners(this))
+ removeBeforeUnloadEventListener(this);
+
+ return true;
+}
+
+void DOMWindow::dispatchLoadEvent()
+{
+ dispatchEvent(Event::create(eventNames().loadEvent, false, false), document());
+
+ // For load events, send a separate load event to the enclosing frame only.
+ // This is a DOM extension and is independent of bubbling/capturing rules of
+ // the DOM.
+ Element* ownerElement = document()->ownerElement();
+ if (ownerElement) {
+ RefPtr<Event> ownerEvent = Event::create(eventNames().loadEvent, false, false);
+ ownerEvent->setTarget(ownerElement);
+ ownerElement->dispatchGenericEvent(ownerEvent.release());
+ }
+
+#if ENABLE(INSPECTOR)
+ if (!frame() || !frame()->page())
+ return;
+
+ if (InspectorController* controller = frame()->page()->inspectorController())
+ controller->mainResourceFiredLoadEvent(frame()->loader()->documentLoader(), url());
+#endif
+}
+
+bool DOMWindow::dispatchEvent(PassRefPtr<Event> prpEvent, PassRefPtr<EventTarget> prpTarget)
+{
+ RefPtr<EventTarget> protect = this;
+ RefPtr<Event> event = prpEvent;
+
+ event->setTarget(prpTarget ? prpTarget : this);
+ event->setCurrentTarget(this);
+ event->setEventPhase(Event::AT_TARGET);
+
+ return fireEventListeners(event.get());
+}
+
+void DOMWindow::removeAllEventListeners()
+{
+ EventTarget::removeAllEventListeners();
+
+ removeAllUnloadEventListeners(this);
+ removeAllBeforeUnloadEventListeners(this);
+}
+
+void DOMWindow::captureEvents()
+{
+ // Not implemented.
+}
+
+void DOMWindow::releaseEvents()
+{
+ // Not implemented.
+}
+
+EventTargetData* DOMWindow::eventTargetData()
+{
+ return &m_eventTargetData;
+}
+
+EventTargetData* DOMWindow::ensureEventTargetData()
+{
+ return &m_eventTargetData;
+}
+
+} // namespace WebCore