webengine/osswebengine/WebCore/bindings/js/kjs_window.cpp
changeset 0 dd21522fd290
child 16 a359256acfc6
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/osswebengine/WebCore/bindings/js/kjs_window.cpp	Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,1921 @@
+// -*- c-basic-offset: 4 -*-
+/*
+ *  Copyright (C) 2000 Harri Porten (porten@kde.org)
+ *  Copyright (C) 2006 Jon Shier (jshier@iastate.edu)
+ *  Copyright (C) 2003, 2004, 2005, 2006, 2007 Apple Inc. All rights reseved.
+ *  Copyright (C) 2006 Alexey Proskuryakov (ap@webkit.org)
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser 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
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include "config.h"
+
+#if PLATFORM(SYMBIAN)
+#include "../../bidi.h"
+#endif
+
+#include "kjs_window.h"
+
+#include "Base64.h"
+#include "CString.h"
+#include "Chrome.h"
+#include "DOMWindow.h"
+#include "Element.h"
+#include "EventListener.h"
+#include "EventNames.h"
+#include "ExceptionCode.h"
+#include "FloatRect.h"
+#include "Frame.h"
+#include "FrameLoadRequest.h"
+#include "FrameLoader.h"
+#include "FrameTree.h"
+#include "FrameView.h"
+#include "GCController.h"
+#include "HTMLDocument.h"
+#include "JSCSSRule.h"
+#include "JSCSSValue.h"
+#include "JSDOMExceptionConstructor.h"
+#include "JSDOMWindow.h"
+#include "JSEvent.h"
+#include "JSHTMLCollection.h"
+#include "JSHTMLOptionElementConstructor.h"
+#include "JSMutationEvent.h"
+#include "JSNode.h"
+#include "JSNodeFilter.h"
+#include "JSRange.h"
+#include "JSXMLHttpRequest.h"
+#include "Logging.h"
+#include "Page.h"
+#include "PlatformScreen.h"
+#include "PlugInInfoStore.h"
+#include "RenderView.h"
+#include "SecurityOrigin.h"
+#include "Settings.h"
+#include "WindowFeatures.h"
+#include "htmlediting.h"
+#include "kjs_css.h"
+#include "kjs_events.h"
+#include "kjs_navigator.h"
+#include "kjs_proxy.h"
+#include <wtf/MathExtras.h>
+#include "symbian/kjs_console.h"
+
+#if ENABLE(XSLT)
+#include "JSXSLTProcessor.h"
+#endif
+
+using namespace WebCore;
+using namespace EventNames;
+
+namespace KJS {
+
+static int lastUsedTimeoutId;
+
+static int timerNestingLevel = 0;
+const int cMaxTimerNestingLevel = 5;
+const double cMinimumTimerInterval = 0.010;
+
+struct WindowPrivate {
+    WindowPrivate()
+        : loc(0)
+        , m_evt(0)
+        , m_dialogArguments(0)
+        , m_returnValueSlot(0)
+    {
+    }
+
+    Window::ListenersMap jsEventListeners;
+    Window::ListenersMap jsHTMLEventListeners;
+    Window::UnprotectedListenersMap jsUnprotectedEventListeners;
+    Window::UnprotectedListenersMap jsUnprotectedHTMLEventListeners;
+    mutable Location* loc;
+    WebCore::Event *m_evt;
+    JSValue* m_dialogArguments;
+    JSValue** m_returnValueSlot;
+    typedef HashMap<int, DOMWindowTimer*> TimeoutsMap;
+    TimeoutsMap m_timeouts;
+};
+
+class DOMWindowTimer : public TimerBase {
+public:
+    DOMWindowTimer(int timeoutId, int nestingLevel, Window* o, ScheduledAction* a)
+        : m_timeoutId(timeoutId), m_nestingLevel(nestingLevel), m_object(o), m_action(a) { }
+    virtual ~DOMWindowTimer()
+    {
+        JSLock lock;
+        delete m_action;
+    }
+
+    int timeoutId() const { return m_timeoutId; }
+
+    int nestingLevel() const { return m_nestingLevel; }
+    void setNestingLevel(int n) { m_nestingLevel = n; }
+
+    ScheduledAction* action() const { return m_action; }
+    ScheduledAction* takeAction() { ScheduledAction* a = m_action; m_action = 0; return a; }
+
+private:
+    virtual void fired();
+
+    int m_timeoutId;
+    int m_nestingLevel;
+    Window* m_object;
+    ScheduledAction* m_action;
+};
+
+class PausedTimeout {
+public:
+    int timeoutId;
+    int nestingLevel;
+    double nextFireInterval;
+    double repeatInterval;
+    ScheduledAction *action;
+};
+
+} // namespace KJS
+
+#include "kjs_window.lut.h"
+
+namespace KJS {
+
+////////////////////// Window Object ////////////////////////
+
+const ClassInfo Window::info = { "Window", 0, &WindowTable, 0 };
+
+/*
+@begin WindowTable 119
+# Warning, when adding a function to this object you need to add a case in Window::get
+# -- Functions --
+  atob                  Window::AToB                DontDelete|Function 1
+  btoa                  Window::BToA                DontDelete|Function 1
+  scroll                Window::Scroll              DontDelete|Function 2
+  scrollBy              Window::ScrollBy            DontDelete|Function 2
+  scrollTo              Window::ScrollTo            DontDelete|Function 2
+  moveBy                Window::MoveBy              DontDelete|Function 2
+  moveTo                Window::MoveTo              DontDelete|Function 2
+  resizeBy              Window::ResizeBy            DontDelete|Function 2
+  resizeTo              Window::ResizeTo            DontDelete|Function 2
+  open                  Window::Open                DontDelete|Function 3
+  setTimeout            Window::SetTimeout          DontDelete|Function 2
+  clearTimeout          Window::ClearTimeout        DontDelete|Function 1
+  setInterval           Window::SetInterval         DontDelete|Function 2
+  clearInterval         Window::ClearInterval       DontDelete|Function 1
+  captureEvents         Window::CaptureEvents       DontDelete|Function 0
+  releaseEvents         Window::ReleaseEvents       DontDelete|Function 0
+  addEventListener      Window::AddEventListener    DontDelete|Function 3
+  removeEventListener   Window::RemoveEventListener DontDelete|Function 3
+  showModalDialog       Window::ShowModalDialog     DontDelete|Function 1
+# -- Attributes --
+  crypto                Window::Crypto              DontDelete|ReadOnly
+  event                 Window::Event_              DontDelete
+  location              Window::Location_           DontDelete
+  navigator             Window::Navigator_          DontDelete|ReadOnly
+  clientInformation     Window::ClientInformation   DontDelete|ReadOnly
+  console				Window::Console_			DontDelete
+# -- Event Listeners --
+  onabort               Window::Onabort             DontDelete
+  onblur                Window::Onblur              DontDelete
+  onchange              Window::Onchange            DontDelete
+  onclick               Window::Onclick             DontDelete
+  ondblclick            Window::Ondblclick          DontDelete
+  onerror               Window::Onerror             DontDelete
+  onfocus               Window::Onfocus             DontDelete
+  onkeydown             Window::Onkeydown           DontDelete
+  onkeypress            Window::Onkeypress          DontDelete
+  onkeyup               Window::Onkeyup             DontDelete
+  onload                Window::Onload              DontDelete
+  onmousedown           Window::Onmousedown         DontDelete
+  onmousemove           Window::Onmousemove         DontDelete
+  onmouseout            Window::Onmouseout          DontDelete
+  onmouseover           Window::Onmouseover         DontDelete
+  onmouseup             Window::Onmouseup           DontDelete
+  onmousewheel          Window::OnWindowMouseWheel  DontDelete
+  onreset               Window::Onreset             DontDelete
+  onresize              Window::Onresize            DontDelete
+  onscroll              Window::Onscroll            DontDelete
+  onsearch              Window::Onsearch            DontDelete
+  onselect              Window::Onselect            DontDelete
+  onsubmit              Window::Onsubmit            DontDelete
+  onunload              Window::Onunload            DontDelete
+  onbeforeunload        Window::Onbeforeunload      DontDelete
+# -- Constructors --
+  DOMException          Window::DOMException        DontDelete
+  Image                 Window::Image               DontDelete
+  Option                Window::Option              DontDelete
+  XMLHttpRequest        Window::XMLHttpRequest      DontDelete
+  XSLTProcessor         Window::XSLTProcessor_      DontDelete
+@end
+*/
+
+Window::Window(DOMWindow* window)
+  : m_impl(window)
+  , d(new WindowPrivate)
+{
+}
+
+Window::~Window()
+{
+    clearAllTimeouts();
+
+    // Clear any backpointers to the window
+
+    ListenersMap::iterator i2 = d->jsEventListeners.begin();
+    ListenersMap::iterator e2 = d->jsEventListeners.end();
+    for (; i2 != e2; ++i2)
+        i2->second->clearWindowObj();
+    i2 = d->jsHTMLEventListeners.begin();
+    e2 = d->jsHTMLEventListeners.end();
+    for (; i2 != e2; ++i2)
+        i2->second->clearWindowObj();
+
+    UnprotectedListenersMap::iterator i1 = d->jsUnprotectedEventListeners.begin();
+    UnprotectedListenersMap::iterator e1 = d->jsUnprotectedEventListeners.end();
+    for (; i1 != e1; ++i1)
+        i1->second->clearWindowObj();
+    i1 = d->jsUnprotectedHTMLEventListeners.begin();
+    e1 = d->jsUnprotectedHTMLEventListeners.end();
+    for (; i1 != e1; ++i1)
+        i1->second->clearWindowObj();
+}
+
+ScriptInterpreter* Window::interpreter() const
+{
+    Frame* frame = impl()->frame();
+    if (!frame)
+        return 0;
+
+    return frame->scriptProxy()->interpreter();
+}
+
+Window *Window::retrieveWindow(Frame *f)
+{
+    JSObject *o = retrieve(f)->getObject();
+
+    ASSERT(o || !f->settings() || !f->settings()->isJavaScriptEnabled());
+    return static_cast<Window *>(o);
+}
+
+Window *Window::retrieveActive(ExecState *exec)
+{
+    JSValue *imp = exec->dynamicInterpreter()->globalObject();
+    ASSERT(imp);
+    return static_cast<Window*>(imp);
+}
+
+JSValue *Window::retrieve(Frame *p)
+{
+    ASSERT(p);
+    if (KJSProxy *proxy = p->scriptProxy())
+        return proxy->interpreter()->globalObject(); // the Global object is the "window"
+
+    return jsUndefined(); // This can happen with JS disabled on the domain of that window
+}
+
+Location *Window::location() const
+{
+  if (!d->loc)
+    d->loc = new Location(impl()->frame());
+  return d->loc;
+}
+
+ConsoleObject *Window::console(ExecState *exec) const
+{
+  return new ConsoleObject(exec, impl()->frame()->page()->chrome());
+}
+
+// reference our special objects during garbage collection
+void Window::mark()
+{
+  JSObject::mark();
+  if (d->loc && !d->loc->marked())
+    d->loc->mark();
+}
+
+static bool allowPopUp(ExecState *exec, Window *window)
+{
+    Frame* frame = window->impl()->frame();
+    if (!frame)
+        return false;
+    if (static_cast<ScriptInterpreter*>(exec->dynamicInterpreter())->wasRunByUserGesture())
+        return true;
+    Settings* settings = frame->settings();
+    return settings && settings->JavaScriptCanOpenWindowsAutomatically();
+}
+
+static HashMap<String, String> parseModalDialogFeatures(ExecState *exec, JSValue *featuresArg)
+{
+    HashMap<String, String> map;
+
+    Vector<String> features = valueToStringWithUndefinedOrNullCheck(exec, featuresArg).split(';');
+    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);
+        }
+    }
+
+    return map;
+}
+
+static bool boolFeature(const HashMap<String, String>& features, const char* key, bool defaultValue = false)
+{
+    HashMap<String, String>::const_iterator it = features.find(key);
+    if (it == features.end())
+        return defaultValue;
+    const String& value = it->second;
+    return value.isNull() || value == "1" || value == "yes" || value == "on";
+}
+
+static float floatFeature(const HashMap<String, String> &features, const char *key, float min, float max, float defaultValue)
+{
+    HashMap<String, String>::const_iterator it = features.find(key);
+    if (it == features.end())
+        return defaultValue;
+    // FIXME: Can't distinguish "0q" from string with no digits in it -- both return d == 0 and ok == false.
+    // Would be good to tell them apart somehow since string with no digits should be default value and
+    // "0q" should be minimum value.
+    bool ok;
+    double d = it->second.toDouble(&ok);
+    if ((d == 0 && !ok) || isnan(d))
+        return defaultValue;
+    if (d < min || max <= min)
+        return min;
+    if (d > max)
+        return max;
+    return static_cast<int>(d);
+}
+
+static Frame* createWindow(ExecState* exec, Frame* openerFrame, const String& url,
+    const String& frameName, const WindowFeatures& windowFeatures)
+{
+    Frame* activeFrame = Window::retrieveActive(exec)->impl()->frame();
+
+    ResourceRequest request;
+    if (activeFrame)
+        request.setHTTPReferrer(activeFrame->loader()->outgoingReferrer());
+    FrameLoadRequest frameRequest(request, frameName);
+
+    // FIXME: It's much better for client API if a new window starts with a URL, here where we
+    // know what URL we are going to open. Unfortunately, this code passes the empty string
+    // for the URL, but there's a reason for that. Before loading we have to set up the opener,
+    // openedByDOM, and dialogArguments values. Also, to decide whether to use the URL we currently
+    // do an isSafeScript call using the window we create, which can't be done before creating it.
+    // We'd have to resolve all those issues to pass the URL instead of "".
+
+    bool created;
+    Frame* newFrame = openerFrame->loader()->createWindow(frameRequest, windowFeatures, created);
+    if (!newFrame)
+        return 0;
+
+    newFrame->loader()->setOpener(openerFrame);
+    newFrame->loader()->setOpenedByDOM();
+
+    Window* newWindow = Window::retrieveWindow(newFrame);
+
+    if (!url.startsWith("javascript:", false) || newWindow->isSafeScript(exec)) {
+        String completedURL = url.isEmpty() ? url : activeFrame->document()->completeURL(url);
+        bool userGesture = static_cast<ScriptInterpreter *>(exec->dynamicInterpreter())->wasRunByUserGesture();
+
+        if (created) {
+            newFrame->loader()->changeLocation(KURL(completedURL.deprecatedString()), activeFrame->loader()->outgoingReferrer(), false, userGesture);
+            if (Document* oldDoc = openerFrame->document()) {
+                newFrame->document()->setDomainInternal(oldDoc->domain());
+                newFrame->document()->setBaseURL(oldDoc->baseURL());
+            }
+        } else if (!url.isEmpty())
+            newFrame->loader()->scheduleLocationChange(completedURL, activeFrame->loader()->outgoingReferrer(), false, userGesture);
+    }
+
+    return newFrame;
+}
+
+static bool canShowModalDialog(const Window *window)
+{
+    Frame* frame = window->impl()->frame();
+    if (!frame)
+        return false;
+
+    return frame->page()->chrome()->canRunModal();
+}
+
+static bool canShowModalDialogNow(const Window *window)
+{
+    Frame* frame = window->impl()->frame();
+    if (!frame)
+        return false;
+
+    return frame->page()->chrome()->canRunModalNow();
+}
+
+static JSValue* showModalDialog(ExecState* exec, Window* openerWindow, const List& args)
+{
+    if (!canShowModalDialogNow(openerWindow) || !allowPopUp(exec, openerWindow))
+        return jsUndefined();
+
+    const HashMap<String, String> features = parseModalDialogFeatures(exec, args[2]);
+
+    bool trusted = false;
+
+    WindowFeatures wargs;
+
+    // The following features from Microsoft's documentation are not implemented:
+    // - default font settings
+    // - width, height, left, and top specified in units other than "px"
+    // - edge (sunken or raised, default is raised)
+    // - dialogHide: trusted && boolFeature(features, "dialoghide"), makes dialog hide when you print
+    // - help: boolFeature(features, "help", true), makes help icon appear in dialog (what does it do on Windows?)
+    // - unadorned: trusted && boolFeature(features, "unadorned");
+    Frame* frame = openerWindow->impl()->frame();
+    if (!frame)
+        return jsUndefined();
+
+    FloatRect screenRect = screenAvailableRect(frame->view());
+
+    wargs.width = floatFeature(features, "dialogwidth", 100, screenRect.width(), 620); // default here came from frame size of dialog in MacIE
+    wargs.widthSet = true;
+    wargs.height = floatFeature(features, "dialogheight", 100, screenRect.height(), 450); // default here came from frame size of dialog in MacIE
+    wargs.heightSet = true;
+
+    wargs.x = floatFeature(features, "dialogleft", screenRect.x(), screenRect.right() - wargs.width, -1);
+    wargs.xSet = wargs.x > 0;
+    wargs.y = floatFeature(features, "dialogtop", screenRect.y(), screenRect.bottom() - wargs.height, -1);
+    wargs.ySet = wargs.y > 0;
+
+    if (boolFeature(features, "center", true)) {
+        if (!wargs.xSet) {
+            wargs.x = screenRect.x() + (screenRect.width() - wargs.width) / 2;
+            wargs.xSet = true;
+        }
+        if (!wargs.ySet) {
+            wargs.y = screenRect.y() + (screenRect.height() - wargs.height) / 2;
+            wargs.ySet = true;
+        }
+    }
+
+    wargs.dialog = true;
+    wargs.resizable = boolFeature(features, "resizable");
+    wargs.scrollbarsVisible = boolFeature(features, "scroll", true);
+    wargs.statusBarVisible = boolFeature(features, "status", !trusted);
+    wargs.menuBarVisible = false;
+    wargs.toolBarVisible = false;
+    wargs.locationBarVisible = false;
+    wargs.fullscreen = false;
+
+    Frame* dialogFrame = createWindow(exec, frame, valueToStringWithUndefinedOrNullCheck(exec, args[0]), "", wargs);
+    if (!dialogFrame)
+        return jsUndefined();
+
+    Window* dialogWindow = Window::retrieveWindow(dialogFrame);
+
+    dialogWindow->putDirect("dialogArguments", args[1]);
+
+    // Get the return value either just before clearing the dialog window's
+    // properties (in Window::clear), or when on return from runModal.
+    JSValue* returnValue = 0;
+    dialogWindow->setDialogArgumentsAndReturnValueSlot(args[1], &returnValue);
+    dialogFrame->page()->chrome()->runModal();
+    dialogWindow->setDialogArgumentsAndReturnValueSlot(0, 0);
+
+    // If we don't have a return value, get it now.
+    // Either Window::clear was not called yet, or there was no return value,
+    // and in that case, there's no harm in trying again (no benefit either).
+    if (!returnValue)
+        returnValue = dialogWindow->getDirect("returnValue");
+
+    return returnValue ? returnValue : jsUndefined();
+}
+
+JSValue *Window::getValueProperty(ExecState *exec, int token) const
+{
+   ASSERT(impl()->frame());
+
+   switch (token) {
+   case Console_:
+      return console(exec);
+   case Crypto:
+      if (!isSafeScript(exec))
+        return jsUndefined();
+      return jsUndefined(); // FIXME: implement this
+   case DOMException:
+      if (!isSafeScript(exec))
+        return jsUndefined();
+      return getDOMExceptionConstructor(exec);
+    case Event_:
+      if (!isSafeScript(exec))
+        return jsUndefined();
+      if (!d->m_evt)
+        return jsUndefined();
+      return toJS(exec, d->m_evt);
+    case Location_:
+      return location();
+    case Navigator_:
+    case ClientInformation: {
+      if (!isSafeScript(exec))
+        return jsUndefined();
+      // Store the navigator in the object so we get the same one each time.
+      Navigator *n = new Navigator(exec, impl()->frame());
+      // FIXME: this will make the "navigator" object accessible from windows that fail
+      // the security check the first time, but not subsequent times, seems weird.
+      const_cast<Window *>(this)->putDirect("navigator", n, DontDelete|ReadOnly);
+      const_cast<Window *>(this)->putDirect("clientInformation", n, DontDelete|ReadOnly);
+      return n;
+    }
+    case Image:
+      if (!isSafeScript(exec))
+        return jsUndefined();
+      // FIXME: this property (and the few below) probably shouldn't create a new object every
+      // time
+      return new ImageConstructorImp(exec, impl()->frame()->document());
+    case Option:
+      if (!isSafeScript(exec))
+        return jsUndefined();
+      return new JSHTMLOptionElementConstructor(exec, impl()->frame()->document());
+    case XMLHttpRequest:
+      if (!isSafeScript(exec))
+        return jsUndefined();
+      return new JSXMLHttpRequestConstructorImp(exec, impl()->frame()->document());
+#if ENABLE(XSLT)
+    case XSLTProcessor_:
+      if (!isSafeScript(exec))
+        return jsUndefined();
+      return new XSLTProcessorConstructorImp(exec);
+#else
+    case XSLTProcessor_:
+      return jsUndefined();
+#endif
+   }
+
+   if (!isSafeScript(exec))
+     return jsUndefined();
+
+   switch (token) {
+   case Onabort:
+     return getListener(exec, abortEvent);
+   case Onblur:
+     return getListener(exec, blurEvent);
+   case Onchange:
+     return getListener(exec, changeEvent);
+   case Onclick:
+     return getListener(exec, clickEvent);
+   case Ondblclick:
+     return getListener(exec, dblclickEvent);
+   case Onerror:
+     return getListener(exec, errorEvent);
+   case Onfocus:
+     return getListener(exec, focusEvent);
+   case Onkeydown:
+     return getListener(exec, keydownEvent);
+   case Onkeypress:
+     return getListener(exec, keypressEvent);
+   case Onkeyup:
+     return getListener(exec, keyupEvent);
+   case Onload:
+     return getListener(exec, loadEvent);
+   case Onmousedown:
+     return getListener(exec, mousedownEvent);
+   case Onmousemove:
+     return getListener(exec, mousemoveEvent);
+   case Onmouseout:
+     return getListener(exec, mouseoutEvent);
+   case Onmouseover:
+     return getListener(exec, mouseoverEvent);
+   case Onmouseup:
+     return getListener(exec, mouseupEvent);
+   case OnWindowMouseWheel:
+     return getListener(exec, mousewheelEvent);
+   case Onreset:
+     return getListener(exec, resetEvent);
+   case Onresize:
+     return getListener(exec,resizeEvent);
+   case Onscroll:
+     return getListener(exec,scrollEvent);
+   case Onsearch:
+     return getListener(exec,searchEvent);
+   case Onselect:
+     return getListener(exec,selectEvent);
+   case Onsubmit:
+     return getListener(exec,submitEvent);
+   case Onbeforeunload:
+      return getListener(exec, beforeunloadEvent);
+    case Onunload:
+     return getListener(exec, unloadEvent);
+   }
+   ASSERT(0);
+   return jsUndefined();
+}
+
+JSValue* Window::childFrameGetter(ExecState*, JSObject*, const Identifier& propertyName, const PropertySlot& slot)
+{
+    return retrieve(static_cast<Window*>(slot.slotBase())->impl()->frame()->tree()->child(AtomicString(propertyName)));
+}
+
+JSValue* Window::indexGetter(ExecState*, JSObject*, const Identifier&, const PropertySlot& slot)
+{
+    return retrieve(static_cast<Window*>(slot.slotBase())->impl()->frame()->tree()->child(slot.index()));
+}
+
+JSValue *Window::namedItemGetter(ExecState *exec, JSObject *originalObject, const Identifier& propertyName, const PropertySlot& slot)
+{
+  Window *thisObj = static_cast<Window *>(slot.slotBase());
+  Document *doc = thisObj->impl()->frame()->document();
+  ASSERT(thisObj->isSafeScript(exec) && doc && doc->isHTMLDocument());
+
+  String name = propertyName;
+  RefPtr<WebCore::HTMLCollection> collection = doc->windowNamedItems(name);
+  if (collection->length() == 1)
+    return toJS(exec, collection->firstItem());
+  return toJS(exec, collection.get());
+}
+
+bool Window::getOwnPropertySlot(ExecState *exec, const Identifier& propertyName, PropertySlot& slot)
+{
+  // Check for child frames by name before built-in properties to
+  // match Mozilla. This does not match IE, but some sites end up
+  // naming frames things that conflict with window properties that
+  // are in Moz but not IE. Since we have some of these, we have to do
+  // it the Moz way.
+  if (impl()->frame()->tree()->child(propertyName)) {
+    slot.setCustom(this, childFrameGetter);
+    return true;
+  }
+
+  const HashEntry* entry = Lookup::findEntry(&WindowTable, propertyName);
+  if (entry) {
+    if (entry->attr & Function) {
+      switch (entry->value) {
+      case ShowModalDialog:
+        if (!canShowModalDialog(this))
+          return false;
+        // fall through
+      default:
+        if (isSafeScript(exec))
+          slot.setStaticEntry(this, entry, staticFunctionGetter<WindowFunc>);
+        else
+          slot.setUndefined(this);
+      }
+    } else
+      slot.setStaticEntry(this, entry, staticValueGetter<Window>);
+    return true;
+  }
+
+  // FIXME: Search the whole frame hierachy somewhere around here.
+  // We need to test the correct priority order.
+
+  // allow window[1] or parent[1] etc. (#56983)
+  bool ok;
+  unsigned i = propertyName.toArrayIndex(&ok);
+  if (ok && i < impl()->frame()->tree()->childCount()) {
+    slot.setCustomIndex(this, i, indexGetter);
+    return true;
+  }
+
+  // allow shortcuts like 'Image1' instead of document.images.Image1
+  Document* doc = impl()->frame()->document();
+  if (doc && doc->isHTMLDocument()) {
+    if (!isSafeScript(exec)) {
+      slot.setUndefined(this);
+      return true;
+    }
+
+    AtomicString atomicPropertyName = propertyName;
+    if (static_cast<HTMLDocument*>(doc)->hasNamedItem(atomicPropertyName) || doc->getElementById(atomicPropertyName)) {
+      slot.setCustom(this, namedItemGetter);
+      return true;
+    }
+  }
+
+  if (!isSafeScript(exec)) {
+    slot.setUndefined(this);
+    return true;
+  }
+
+  return JSObject::getOwnPropertySlot(exec, propertyName, slot);
+}
+
+void Window::put(ExecState* exec, const Identifier& propertyName, JSValue* value, int attr)
+{
+  const HashEntry* entry = Lookup::findEntry(&WindowTable, propertyName);
+  if (entry) {
+     if (entry->attr & Function) {
+       if (isSafeScript(exec))
+         JSObject::put(exec, propertyName, value, attr);
+       return;
+    }
+    if (entry->attr & ReadOnly)
+      return;
+
+    switch (entry->value) {
+    case Location_: {
+      Frame* p = Window::retrieveActive(exec)->impl()->frame();
+      if (p) {
+        if (!p->loader()->shouldAllowNavigation(impl()->frame()))
+          return;
+        DeprecatedString dstUrl = p->loader()->completeURL(DeprecatedString(value->toString(exec))).url();
+        if (!dstUrl.startsWith("javascript:", false) || isSafeScript(exec)) {
+          bool userGesture = static_cast<ScriptInterpreter *>(exec->dynamicInterpreter())->wasRunByUserGesture();
+          // We want a new history item if this JS was called via a user gesture
+          impl()->frame()->loader()->scheduleLocationChange(dstUrl, p->loader()->outgoingReferrer(), false, userGesture);
+        }
+      }
+      return;
+    }
+    case Onabort:
+      if (isSafeScript(exec))
+        setListener(exec, abortEvent,value);
+      return;
+    case Onblur:
+      if (isSafeScript(exec))
+        setListener(exec, blurEvent,value);
+      return;
+    case Onchange:
+      if (isSafeScript(exec))
+        setListener(exec, changeEvent,value);
+      return;
+    case Onclick:
+      if (isSafeScript(exec))
+        setListener(exec,clickEvent,value);
+      return;
+    case Ondblclick:
+      if (isSafeScript(exec))
+        setListener(exec, dblclickEvent,value);
+      return;
+    case Onerror:
+      if (isSafeScript(exec))
+        setListener(exec, errorEvent, value);
+      return;
+    case Onfocus:
+      if (isSafeScript(exec))
+        setListener(exec,focusEvent,value);
+      return;
+    case Onkeydown:
+      if (isSafeScript(exec))
+        setListener(exec,keydownEvent,value);
+      return;
+    case Onkeypress:
+      if (isSafeScript(exec))
+        setListener(exec,keypressEvent,value);
+      return;
+    case Onkeyup:
+      if (isSafeScript(exec))
+        setListener(exec,keyupEvent,value);
+      return;
+    case Onload:
+      if (isSafeScript(exec))
+        setListener(exec,loadEvent,value);
+      return;
+    case Onmousedown:
+      if (isSafeScript(exec))
+        setListener(exec,mousedownEvent,value);
+      return;
+    case Onmousemove:
+      if (isSafeScript(exec))
+        setListener(exec,mousemoveEvent,value);
+      return;
+    case Onmouseout:
+      if (isSafeScript(exec))
+        setListener(exec,mouseoutEvent,value);
+      return;
+    case Onmouseover:
+      if (isSafeScript(exec))
+        setListener(exec,mouseoverEvent,value);
+      return;
+    case Onmouseup:
+      if (isSafeScript(exec))
+        setListener(exec,mouseupEvent,value);
+      return;
+    case OnWindowMouseWheel:
+      if (isSafeScript(exec))
+        setListener(exec, mousewheelEvent,value);
+      return;
+    case Onreset:
+      if (isSafeScript(exec))
+        setListener(exec,resetEvent,value);
+      return;
+    case Onresize:
+      if (isSafeScript(exec))
+        setListener(exec,resizeEvent,value);
+      return;
+    case Onscroll:
+      if (isSafeScript(exec))
+        setListener(exec,scrollEvent,value);
+      return;
+    case Onsearch:
+        if (isSafeScript(exec))
+            setListener(exec,searchEvent,value);
+        return;
+    case Onselect:
+      if (isSafeScript(exec))
+        setListener(exec,selectEvent,value);
+      return;
+    case Onsubmit:
+      if (isSafeScript(exec))
+        setListener(exec,submitEvent,value);
+      return;
+    case Onbeforeunload:
+      if (isSafeScript(exec))
+        setListener(exec, beforeunloadEvent, value);
+      return;
+    case Onunload:
+      if (isSafeScript(exec))
+        setListener(exec, unloadEvent, value);
+      return;
+    default:
+      break;
+    }
+  }
+  if (isSafeScript(exec))
+    JSObject::put(exec, propertyName, value, attr);
+}
+
+static bool shouldLoadAsEmptyDocument(const KURL &url)
+{
+  return url.protocol().lower() == "about" || url.isEmpty();
+}
+
+bool Window::isSafeScript(const ScriptInterpreter *origin, const ScriptInterpreter *target)
+{
+    if (origin == target)
+        return true;
+
+    Frame* originFrame = origin->frame();
+    Frame* targetFrame = target->frame();
+
+    // JS may be attempting to access the "window" object, which should be valid,
+    // even if the document hasn't been constructed yet.  If the document doesn't
+    // exist yet allow JS to access the window object.
+    if (!targetFrame->document())
+        return true;
+
+    WebCore::Document *originDocument = originFrame->document();
+    WebCore::Document *targetDocument = targetFrame->document();
+
+    if (!targetDocument) {
+        return false;
+    }
+
+    WebCore::String targetDomain = targetDocument->domain();
+
+    // Always allow local pages to execute any JS.
+    if (targetDomain.isNull())
+        return true;
+
+    WebCore::String originDomain = originDocument->domain();
+
+    // if this document is being initially loaded as empty by its parent
+    // or opener, allow access from any document in the same domain as
+    // the parent or opener.
+    if (shouldLoadAsEmptyDocument(targetFrame->loader()->url())) {
+        Frame* ancestorFrame = targetFrame->loader()->opener() ? targetFrame->loader()->opener() : targetFrame->tree()->parent();
+        while (ancestorFrame && shouldLoadAsEmptyDocument(ancestorFrame->loader()->url()))
+            ancestorFrame = ancestorFrame->tree()->parent();
+        if (ancestorFrame)
+            originDomain = ancestorFrame->document()->domain();
+    }
+
+    if ( targetDomain == originDomain )
+        return true;
+
+    if (Interpreter::shouldPrintExceptions()) {
+        printf("Unsafe JavaScript attempt to access frame with URL %s from frame with URL %s. Domains must match.\n",
+             targetDocument->URL().latin1(), originDocument->URL().latin1());
+    }
+    String message = String::format("Unsafe JavaScript attempt to access frame with URL %s from frame with URL %s. Domains must match.\n",
+                  targetDocument->URL().latin1(), originDocument->URL().latin1());
+    if (Page* page = targetFrame->page())
+        page->chrome()->addMessageToConsole(JSMessageSource, ErrorMessageLevel, message, 1, String()); // FIXME: provide a real line number and source URL.
+
+    return false;
+}
+
+bool Window::isSafeScript(ExecState *exec) const
+{
+  Frame* frame = impl()->frame();
+  if (!frame)
+    return false;
+  Frame* activeFrame = static_cast<ScriptInterpreter*>(exec->dynamicInterpreter())->frame();
+  if (!activeFrame)
+    return false;
+  if (activeFrame == frame)
+    return true;
+
+  WebCore::Document* thisDocument = frame->document();
+
+  // JS may be attempting to access the "window" object, which should be valid,
+  // even if the document hasn't been constructed yet.  If the document doesn't
+  // exist yet allow JS to access the window object.
+  if (!thisDocument)
+      return true;
+
+  WebCore::Document* actDocument = activeFrame->document();
+
+  const SecurityOrigin& actSecurityOrigin = actDocument->securityOrigin();
+  const SecurityOrigin& thisSecurityOrigin = thisDocument->securityOrigin();
+
+  if (actSecurityOrigin.canAccess(thisSecurityOrigin))
+    return true;
+
+  // FIXME: this error message should contain more specifics of why the same origin check has failed.
+  String message = String::format("Unsafe JavaScript attempt to access frame with URL %s from frame with URL %s. Domains, protocols and ports must match.\n",
+                                  thisDocument->URL().utf8().data(), actDocument->URL().utf8().data());
+
+  if (Interpreter::shouldPrintExceptions())
+    printf("%s", message.utf8().data());
+
+  if (Page* page = frame->page())
+      page->chrome()->addMessageToConsole(JSMessageSource, ErrorMessageLevel, message, 1, String());
+
+  return false;
+}
+
+void Window::setListener(ExecState *exec, const AtomicString &eventType, JSValue *func)
+{
+  if (!isSafeScript(exec))
+    return;
+  Frame* frame = impl()->frame();
+  if (!frame)
+    return;
+  Document* doc = frame->document();
+  if (!doc)
+    return;
+
+  doc->setHTMLWindowEventListener(eventType, findOrCreateJSEventListener(func,true));
+}
+
+JSValue *Window::getListener(ExecState *exec, const AtomicString &eventType) const
+{
+  if (!isSafeScript(exec))
+    return jsUndefined();
+  Frame* frame = impl()->frame();
+  if (!frame)
+    return jsUndefined();
+  Document* doc = frame->document();
+  if (!doc)
+    return jsUndefined();
+
+  WebCore::EventListener *listener = doc->getHTMLWindowEventListener(eventType);
+  if (listener && static_cast<JSEventListener*>(listener)->listenerObj())
+    return static_cast<JSEventListener*>(listener)->listenerObj();
+  else
+    return jsNull();
+}
+
+JSEventListener* Window::findJSEventListener(JSValue* val, bool html)
+{
+    if (!val->isObject())
+        return 0;
+    JSObject* object = static_cast<JSObject*>(val);
+    ListenersMap& listeners = html ? d->jsHTMLEventListeners : d->jsEventListeners;
+    return listeners.get(object);
+}
+
+JSEventListener *Window::findOrCreateJSEventListener(JSValue *val, bool html)
+{
+  JSEventListener *listener = findJSEventListener(val, html);
+  if (listener)
+    return listener;
+
+  if (!val->isObject())
+    return 0;
+  JSObject *object = static_cast<JSObject *>(val);
+
+  // Note that the JSEventListener constructor adds it to our jsEventListeners list
+  return new JSEventListener(object, this, html);
+}
+
+JSUnprotectedEventListener* Window::findJSUnprotectedEventListener(JSValue* val, bool html)
+{
+    if (!val->isObject())
+        return 0;
+    JSObject* object = static_cast<JSObject*>(val);
+    UnprotectedListenersMap& listeners = html ? d->jsUnprotectedHTMLEventListeners : d->jsUnprotectedEventListeners;
+    return listeners.get(object);
+}
+
+JSUnprotectedEventListener *Window::findOrCreateJSUnprotectedEventListener(JSValue *val, bool html)
+{
+  JSUnprotectedEventListener *listener = findJSUnprotectedEventListener(val, html);
+  if (listener)
+    return listener;
+
+  if (!val->isObject())
+    return 0;
+  JSObject *object = static_cast<JSObject *>(val);
+
+  // The JSUnprotectedEventListener constructor adds it to our jsUnprotectedEventListeners map.
+  return new JSUnprotectedEventListener(object, this, html);
+}
+
+void Window::clearHelperObjectProperties()
+{
+  d->loc = 0;
+  d->m_evt = 0;
+}
+
+void Window::clear()
+{
+  JSLock lock;
+
+  if (d->m_returnValueSlot && !*d->m_returnValueSlot)
+    *d->m_returnValueSlot = getDirect("returnValue");
+
+  clearAllTimeouts();
+  clearProperties();
+  clearHelperObjectProperties();
+  setPrototype(JSDOMWindowPrototype::self()); // clear the prototype
+
+  // Now recreate a working global object for the next URL that will use us; but only if we haven't been
+  // disconnected yet
+  if (Frame* frame = impl()->frame())
+    frame->scriptProxy()->interpreter()->initGlobalObject();
+
+  if (d->m_dialogArguments)
+    putDirect("dialogArguments", d->m_dialogArguments);
+
+  // there's likely to be lots of garbage now
+  gcController().garbageCollectSoon();
+}
+
+void Window::setCurrentEvent(Event *evt)
+{
+  d->m_evt = evt;
+}
+
+static void setWindowFeature(const String& keyString, const String& valueString, WindowFeatures& windowFeatures)
+{
+    int value;
+
+    if (valueString.length() == 0 || // listing a key with no value is shorthand for key=yes
+        valueString == "yes")
+        value = 1;
+    else
+        value = valueString.toInt();
+
+    if (keyString == "left" || keyString == "screenx") {
+        windowFeatures.xSet = true;
+        windowFeatures.x = value;
+    } else if (keyString == "top" || keyString == "screeny") {
+        windowFeatures.ySet = true;
+        windowFeatures.y = value;
+    } else if (keyString == "width" || keyString == "innerwidth") {
+        windowFeatures.widthSet = true;
+        windowFeatures.width = value;
+    } else if (keyString == "height" || keyString == "innerheight") {
+        windowFeatures.heightSet = true;
+        windowFeatures.height = value;
+    } else if (keyString == "menubar")
+        windowFeatures.menuBarVisible = value;
+    else if (keyString == "toolbar")
+        windowFeatures.toolBarVisible = value;
+    else if (keyString == "location")
+        windowFeatures.locationBarVisible = value;
+    else if (keyString == "status")
+        windowFeatures.statusBarVisible = value;
+    else if (keyString == "resizable")
+        windowFeatures.resizable = value;
+    else if (keyString == "fullscreen")
+        windowFeatures.fullscreen = value;
+    else if (keyString == "scrollbars")
+        windowFeatures.scrollbarsVisible = value;
+}
+
+// Though isspace() considers \t and \v to be whitespace, Win IE doesn't.
+static bool isSeparator(::UChar c)
+{
+    return c == ' ' || c == '\t' || c == '\n' || c == '\r' || c == '=' || c == ',' || c == '\0';
+}
+
+static void parseWindowFeatures(const String& features, WindowFeatures& windowFeatures)
+{
+    /*
+     The IE rule is: all features except for channelmode and fullscreen default to YES, but
+     if the user specifies a feature string, all features default to NO. (There is no public
+     standard that applies to this method.)
+
+     <http://msdn.microsoft.com/workshop/author/dhtml/reference/methods/open_0.asp>
+     */
+
+    windowFeatures.dialog = false;
+    windowFeatures.fullscreen = false;
+
+    windowFeatures.xSet = false;
+    windowFeatures.ySet = false;
+    windowFeatures.widthSet = false;
+    windowFeatures.heightSet = false;
+
+    if (features.length() == 0) {
+        windowFeatures.menuBarVisible = true;
+        windowFeatures.statusBarVisible = true;
+        windowFeatures.toolBarVisible = true;
+        windowFeatures.locationBarVisible = true;
+        windowFeatures.scrollbarsVisible = true;
+        windowFeatures.resizable = true;
+
+        return;
+    }
+
+    windowFeatures.menuBarVisible = false;
+    windowFeatures.statusBarVisible = false;
+    windowFeatures.toolBarVisible = false;
+    windowFeatures.locationBarVisible = false;
+    windowFeatures.scrollbarsVisible = false;
+    windowFeatures.resizable = false;
+
+    // Tread lightly in this code -- it was specifically designed to mimic Win IE's parsing behavior.
+    int keyBegin, keyEnd;
+    int valueBegin, valueEnd;
+
+    int i = 0;
+    int length = features.length();
+    String buffer = features.lower();
+    while (i < length) {
+        // skip to first non-separator, but don't skip past the end of the string
+        while (isSeparator(buffer[i])) {
+            if (i >= length)
+                break;
+            i++;
+        }
+        keyBegin = i;
+
+        // skip to first separator
+        while (!isSeparator(buffer[i]))
+            i++;
+        keyEnd = i;
+
+        // skip to first '=', but don't skip past a ',' or the end of the string
+        while (buffer[i] != '=') {
+            if (buffer[i] == ',' || i >= length)
+                break;
+            i++;
+        }
+
+        // skip to first non-separator, but don't skip past a ',' or the end of the string
+        while (isSeparator(buffer[i])) {
+            if (buffer[i] == ',' || i >= length)
+                break;
+            i++;
+        }
+        valueBegin = i;
+
+        // skip to first separator
+        while (!isSeparator(buffer[i]))
+            i++;
+        valueEnd = i;
+
+        ASSERT(i <= length);
+
+        String keyString(buffer.substring(keyBegin, keyEnd - keyBegin));
+        String valueString(buffer.substring(valueBegin, valueEnd - valueBegin));
+        setWindowFeature(keyString, valueString, windowFeatures);
+    }
+}
+
+// FIXME instead of the screen should we actually check the workspace?
+static void constrainToVisible(const FloatRect& screen, FloatRect& window)
+{
+    float x = window.x() + screen.x();
+    if (x < screen.x() || x >= screen.right())
+        x = screen.x(); // only safe choice until size is determined
+    window.setX(x);
+
+    float y = window.y() + screen.y();
+    if (y < screen.y() || y >= screen.bottom())
+        y = screen.y(); // only safe choice until size is determined
+    window.setY(y);
+
+    float height = window.height();
+    if (height > screen.height())
+        height = screen.height();
+    if (height < 100)
+        height = 100;
+    window.setHeight(height);
+
+    float width = window.width();
+    if (width > screen.width())
+        width = screen.width();
+    if (width < 100)
+        width = 100;
+    window.setWidth(width);
+}
+
+JSValue *WindowFunc::callAsFunction(ExecState *exec, JSObject *thisObj, const List &args)
+{
+  if (!thisObj->inherits(&Window::info))
+    return throwError(exec, TypeError);
+  Window *window = static_cast<Window *>(thisObj);
+  Frame *frame = window->impl()->frame();
+  if (!frame)
+    return jsUndefined();
+
+  FrameView *widget = frame->view();
+  Page* page = frame->page();
+  JSValue *v = args[0];
+  UString s = v->toString(exec);
+  String str = s;
+  String str2;
+
+  switch (id) {
+  case Window::AToB:
+  case Window::BToA: {
+    if (args.size() < 1)
+        return throwError(exec, SyntaxError, "Not enough arguments");
+    if (v->isNull())
+        return jsString();
+    if (!s.is8Bit()) {
+        setDOMException(exec, INVALID_CHARACTER_ERR);
+        return jsUndefined();
+    }
+
+    Vector<char> in(s.size());
+    for (int i = 0; i < s.size(); ++i)
+        in[i] = static_cast<char>(s.data()[i].unicode());
+    Vector<char> out;
+
+    if (id == Window::AToB) {
+        if (!base64Decode(in, out))
+            return throwError(exec, GeneralError, "Cannot decode base64");
+    } else
+        base64Encode(in, out);
+
+    return jsString(String(out.data(), out.size()));
+  }
+  case Window::Open:
+  {
+      Frame* activeFrame = Window::retrieveActive(exec)->impl()->frame();
+      if (!activeFrame)
+          return jsUndefined();
+
+      String urlString = valueToStringWithUndefinedOrNullCheck(exec, args[0]);
+      AtomicString frameName = args[1]->isUndefinedOrNull() ? "_blank" : AtomicString(args[1]->toString(exec));
+
+      // Because FrameTree::find() returns true for empty strings, we must check for empty framenames.
+      // Otherwise, illegitimate window.open() calls with no name will pass right through the popup blocker.
+      if (!allowPopUp(exec, window) && (frameName.isEmpty() || !frame->tree()->find(frameName)))
+          return jsUndefined();
+
+      // Get the target frame for the special cases of _top and _parent.  In those
+      // cases, we can schedule a location change right now and return early.
+      bool topOrParent = false;
+      if (frameName == "_top") {
+          frame = frame->tree()->top();
+          topOrParent = true;
+      } else if (frameName == "_parent") {
+          if (Frame* parent = frame->tree()->parent())
+              frame = parent;
+          if (!activeFrame->loader()->shouldAllowNavigation(frame))
+              return jsUndefined();
+          topOrParent = true;
+      }
+
+      if (topOrParent) {
+          String completedURL;
+          if (!urlString.isEmpty())
+              completedURL = activeFrame->document()->completeURL(urlString);
+
+          const Window* window = Window::retrieveWindow(frame);
+          if (!completedURL.isEmpty() && (!completedURL.startsWith("javascript:", false) || (window && window->isSafeScript(exec)))) {
+              bool userGesture = static_cast<ScriptInterpreter *>(exec->dynamicInterpreter())->wasRunByUserGesture();
+              frame->loader()->scheduleLocationChange(completedURL, activeFrame->loader()->outgoingReferrer(), false, userGesture);
+          }
+          return Window::retrieve(frame);
+      }
+
+      // In the case of a named frame or a new window, we'll use the createWindow() helper
+      WindowFeatures windowFeatures;
+      String features = valueToStringWithUndefinedOrNullCheck(exec, args[2]);
+      parseWindowFeatures(features, windowFeatures);
+      FloatRect windowRect(windowFeatures.x, windowFeatures.y, windowFeatures.width, windowFeatures.height);
+      constrainToVisible(screenRect(page->mainFrame()->view()), windowRect);
+
+      windowFeatures.x = windowRect.x();
+      windowFeatures.y = windowRect.y();
+      windowFeatures.height = windowRect.height();
+      windowFeatures.width = windowRect.width();
+
+      frame = createWindow(exec, frame, urlString, frameName, windowFeatures);
+
+      if (!frame)
+          return jsUndefined();
+
+      return Window::retrieve(frame); // global object
+  }
+  case Window::ScrollBy:
+    window->updateLayout();
+    if(args.size() >= 2 && widget)
+      widget->scrollBy(args[0]->toInt32(exec), args[1]->toInt32(exec));
+    return jsUndefined();
+  case Window::Scroll:
+  case Window::ScrollTo:
+    window->updateLayout();
+    if (args.size() >= 2 && widget)
+      widget->setContentsPos(args[0]->toInt32(exec), args[1]->toInt32(exec));
+    return jsUndefined();
+  case Window::MoveBy:
+    if (args.size() >= 2 && page) {
+      FloatRect fr = page->chrome()->windowRect();
+      fr.move(args[0]->toFloat(exec), args[1]->toFloat(exec));
+      // Security check (the spec talks about UniversalBrowserWrite to disable this check...)
+      constrainToVisible(screenRect(page->mainFrame()->view()), fr);
+      page->chrome()->setWindowRect(fr);
+    }
+    return jsUndefined();
+  case Window::MoveTo:
+    if (args.size() >= 2 && page) {
+      FloatRect fr = page->chrome()->windowRect();
+      FloatRect sr = screenRect(page->mainFrame()->view());
+      fr.setLocation(sr.location());
+      fr.move(args[0]->toFloat(exec), args[1]->toFloat(exec));
+      // Security check (the spec talks about UniversalBrowserWrite to disable this check...)
+      constrainToVisible(sr, fr);
+      page->chrome()->setWindowRect(fr);
+    }
+    return jsUndefined();
+  case Window::ResizeBy:
+    if (args.size() >= 2 && page) {
+      FloatRect r = page->chrome()->windowRect();
+      FloatSize dest = r.size() + FloatSize(args[0]->toFloat(exec), args[1]->toFloat(exec));
+      FloatRect fr = FloatRect(r.location(), dest);
+      constrainToVisible(screenRect(page->mainFrame()->view()), fr);
+      page->chrome()->setWindowRect(fr);
+    }
+    return jsUndefined();
+  case Window::ResizeTo:
+    if (args.size() >= 2 && page) {
+      FloatRect r = page->chrome()->windowRect();
+      FloatSize dest = FloatSize(args[0]->toFloat(exec), args[1]->toFloat(exec));
+      FloatRect fr = FloatRect(r.location(), dest);
+      constrainToVisible(screenRect(page->mainFrame()->view()), fr);
+      page->chrome()->setWindowRect(fr);
+    }
+    return jsUndefined();
+  case Window::SetTimeout:
+    if (!window->isSafeScript(exec))
+        return jsUndefined();
+    if (v->isString()) {
+      int i = args[1]->toInt32(exec);
+      int r = (const_cast<Window*>(window))->installTimeout(s, i, true /*single shot*/);
+      return jsNumber(r);
+    }
+    else if (v->isObject() && static_cast<JSObject *>(v)->implementsCall()) {
+      JSValue *func = args[0];
+      int i = args[1]->toInt32(exec);
+
+      // All arguments after the second should go to the function
+      // FIXME: could be more efficient
+      List funcArgs = args.copyTail().copyTail();
+
+      int r = (const_cast<Window*>(window))->installTimeout(func, funcArgs, i, true /*single shot*/);
+      return jsNumber(r);
+    }
+    else
+      return jsUndefined();
+  case Window::SetInterval:
+    if (!window->isSafeScript(exec))
+        return jsUndefined();
+    if (args.size() >= 2 && v->isString()) {
+      int i = args[1]->toInt32(exec);
+      int r = (const_cast<Window*>(window))->installTimeout(s, i, false);
+      return jsNumber(r);
+    }
+    else if (args.size() >= 2 && v->isObject() && static_cast<JSObject *>(v)->implementsCall()) {
+      JSValue *func = args[0];
+      int i = args[1]->toInt32(exec);
+
+      // All arguments after the second should go to the function
+      // FIXME: could be more efficient
+      List funcArgs = args.copyTail().copyTail();
+
+      int r = (const_cast<Window*>(window))->installTimeout(func, funcArgs, i, false);
+      return jsNumber(r);
+    }
+    else
+      return jsUndefined();
+  case Window::ClearTimeout:
+  case Window::ClearInterval:
+    if (!window->isSafeScript(exec))
+        return jsUndefined();
+    (const_cast<Window*>(window))->clearTimeout(v->toInt32(exec));
+    return jsUndefined();
+  case Window::CaptureEvents:
+  case Window::ReleaseEvents:
+    // If anyone implements these, they need the safe script security check.
+    if (!window->isSafeScript(exec))
+        return jsUndefined();
+    // Not implemented.
+    return jsUndefined();
+  case Window::AddEventListener:
+        if (!window->isSafeScript(exec))
+            return jsUndefined();
+        if (JSEventListener* listener = window->findOrCreateJSEventListener(args[1]))
+            if (Document *doc = frame->document())
+                doc->addWindowEventListener(AtomicString(args[0]->toString(exec)), listener, args[2]->toBoolean(exec));
+        return jsUndefined();
+  case Window::RemoveEventListener:
+        if (!window->isSafeScript(exec))
+            return jsUndefined();
+        if (JSEventListener* listener = window->findJSEventListener(args[1]))
+            if (Document *doc = frame->document())
+                doc->removeWindowEventListener(AtomicString(args[0]->toString(exec)), listener, args[2]->toBoolean(exec));
+        return jsUndefined();
+  case Window::ShowModalDialog: {
+    JSValue* result = showModalDialog(exec, window, args);
+    return result;
+  }
+  }
+  return jsUndefined();
+}
+
+void Window::updateLayout() const
+{
+  Frame* frame = impl()->frame();
+  if (!frame)
+    return;
+  WebCore::Document* docimpl = frame->document();
+  if (docimpl)
+    docimpl->updateLayoutIgnorePendingStylesheets();
+}
+
+void Window::setDialogArgumentsAndReturnValueSlot(JSValue* dialogArgs, JSValue** returnValueSlot)
+{
+    d->m_dialogArguments = dialogArgs;
+    d->m_returnValueSlot = returnValueSlot;
+}
+
+////////////////////// ScheduledAction ////////////////////////
+
+void ScheduledAction::execute(Window* window)
+{
+    RefPtr<Frame> frame = window->impl()->frame();
+    if (!frame)
+        return;
+
+    KJSProxy* scriptProxy = frame->scriptProxy();
+    if (!scriptProxy)
+        return;
+
+    RefPtr<ScriptInterpreter> interpreter = scriptProxy->interpreter();
+
+    interpreter->setProcessingTimerCallback(true);
+
+    if (JSValue* func = m_func.get()) {
+        JSLock lock;
+        if (func->isObject() && static_cast<JSObject*>(func)->implementsCall()) {
+            ExecState* exec = interpreter->globalExec();
+            ASSERT(window == interpreter->globalObject());
+            interpreter->startTimeoutCheck();
+            static_cast<JSObject*>(func)->call(exec, window, m_args);
+            interpreter->stopTimeoutCheck();
+            if (exec->hadException()) {
+                JSObject* exception = exec->exception()->toObject(exec);
+                exec->clearException();
+                String message = exception->get(exec, exec->propertyNames().message)->toString(exec);
+                int lineNumber = exception->get(exec, "line")->toInt32(exec);
+                if (Interpreter::shouldPrintExceptions())
+                    printf("(timer):%s\n", message.utf8().data());
+                if (Page* page = frame->page())
+                    page->chrome()->addMessageToConsole(JSMessageSource, ErrorMessageLevel, message, lineNumber, String());
+            }
+        }
+    } else
+        frame->loader()->executeScript(m_code);
+
+    // Update our document's rendering following the execution of the timeout callback.
+    // FIXME: Why not use updateDocumentsRendering to update rendering of all documents?
+    // FIXME: Is this really the right point to do the update? We need a place that works
+    // for all possible entry points that might possibly execute script, but this seems
+    // to be a bit too low-level.
+    if (Document* doc = frame->document())
+        doc->updateRendering();
+
+    interpreter->setProcessingTimerCallback(false);
+}
+
+////////////////////// timeouts ////////////////////////
+
+void Window::clearAllTimeouts()
+{
+    deleteAllValues(d->m_timeouts);
+    d->m_timeouts.clear();
+}
+
+int Window::installTimeout(ScheduledAction* a, int t, bool singleShot)
+{
+    
+#if PLATFORM(SYMBIAN)
+    if (d->m_evt && d->m_evt->type() == "mouseover")  {
+        impl()->frame()->page()->chrome()->setElementVisibilityChanged(true);
+    }
+#endif        
+
+    int timeoutId = ++lastUsedTimeoutId;
+    int nestLevel = timerNestingLevel + 1;
+    DOMWindowTimer* timer = new DOMWindowTimer(timeoutId, nestLevel, this, a);
+    ASSERT(!d->m_timeouts.get(timeoutId));
+    d->m_timeouts.set(timeoutId, timer);
+    // Use a minimum interval of 10 ms to match other browsers, but only once we've
+    // nested enough to notice that we're repeating.
+    // Faster timers might be "better", but they're incompatible.
+    double interval = max(0.001, t * 0.001);
+    if (interval < cMinimumTimerInterval && nestLevel >= cMaxTimerNestingLevel)
+        interval = cMinimumTimerInterval;
+    if (singleShot)
+        timer->startOneShot(interval);
+    else
+        timer->startRepeating(interval);
+    return timeoutId;
+}
+
+int Window::installTimeout(const UString& handler, int t, bool singleShot)
+{
+    return installTimeout(new ScheduledAction(handler), t, singleShot);
+}
+
+int Window::installTimeout(JSValue* func, const List& args, int t, bool singleShot)
+{
+    return installTimeout(new ScheduledAction(func, args), t, singleShot);
+}
+
+PausedTimeouts* Window::pauseTimeouts()
+{
+    size_t count = d->m_timeouts.size();
+    if (count == 0)
+        return 0;
+
+    PausedTimeout* t = new PausedTimeout [count];
+    PausedTimeouts* result = new PausedTimeouts(t, count);
+
+    WindowPrivate::TimeoutsMap::iterator it = d->m_timeouts.begin();
+    for (size_t i = 0; i != count; ++i, ++it) {
+        int timeoutId = it->first;
+        DOMWindowTimer* timer = it->second;
+        t[i].timeoutId = timeoutId;
+        t[i].nestingLevel = timer->nestingLevel();
+        t[i].nextFireInterval = timer->nextFireInterval();
+        t[i].repeatInterval = timer->repeatInterval();
+        t[i].action = timer->takeAction();
+    }
+    ASSERT(it == d->m_timeouts.end());
+
+    deleteAllValues(d->m_timeouts);
+    d->m_timeouts.clear();
+
+    return result;
+}
+
+void Window::resumeTimeouts(PausedTimeouts* timeouts)
+{
+    if (!timeouts)
+        return;
+    size_t count = timeouts->numTimeouts();
+    PausedTimeout* array = timeouts->takeTimeouts();
+    for (size_t i = 0; i != count; ++i) {
+        int timeoutId = array[i].timeoutId;
+        DOMWindowTimer* timer = new DOMWindowTimer(timeoutId, array[i].nestingLevel, this, array[i].action);
+        d->m_timeouts.set(timeoutId, timer);
+        timer->start(array[i].nextFireInterval, array[i].repeatInterval);
+    }
+    delete [] array;
+}
+
+void Window::clearTimeout(int timeoutId, bool delAction)
+{
+    WindowPrivate::TimeoutsMap::iterator it = d->m_timeouts.find(timeoutId);
+    if (it == d->m_timeouts.end())
+        return;
+    DOMWindowTimer* timer = it->second;
+    d->m_timeouts.remove(it);
+    delete timer;
+}
+
+void Window::timerFired(DOMWindowTimer* timer)
+{
+    // Simple case for non-one-shot timers.
+    if (timer->isActive()) {
+        int timeoutId = timer->timeoutId();
+
+        timer->action()->execute(this);
+        if (d->m_timeouts.contains(timeoutId) && timer->repeatInterval() && timer->repeatInterval() < cMinimumTimerInterval) {
+            timer->setNestingLevel(timer->nestingLevel() + 1);
+            if (timer->nestingLevel() >= cMaxTimerNestingLevel)
+                timer->augmentRepeatInterval(cMinimumTimerInterval - timer->repeatInterval());
+        }
+        return;
+    }
+
+    // Delete timer before executing the action for one-shot timers.
+    ScheduledAction* action = timer->takeAction();
+    d->m_timeouts.remove(timer->timeoutId());
+    delete timer;
+    action->execute(this);
+
+    JSLock lock;
+    delete action;
+}
+
+void Window::disconnectFrame()
+{
+    clearAllTimeouts();
+    if (d->loc)
+        d->loc->m_frame = 0;
+}
+
+Window::ListenersMap& Window::jsEventListeners()
+{
+    return d->jsEventListeners;
+}
+
+Window::ListenersMap& Window::jsHTMLEventListeners()
+{
+    return d->jsHTMLEventListeners;
+}
+
+Window::UnprotectedListenersMap& Window::jsUnprotectedEventListeners()
+{
+    return d->jsUnprotectedEventListeners;
+}
+
+Window::UnprotectedListenersMap& Window::jsUnprotectedHTMLEventListeners()
+{
+    return d->jsUnprotectedHTMLEventListeners;
+}
+
+////////////////////// Location Object ////////////////////////
+
+const ClassInfo Location::info = { "Location", 0, &LocationTable, 0 };
+/*
+@begin LocationTable 12
+  assign        Location::Assign        DontDelete|Function 1
+  hash          Location::Hash          DontDelete
+  host          Location::Host          DontDelete
+  hostname      Location::Hostname      DontDelete
+  href          Location::Href          DontDelete
+  pathname      Location::Pathname      DontDelete
+  port          Location::Port          DontDelete
+  protocol      Location::Protocol      DontDelete
+  search        Location::Search        DontDelete
+  toString      Location::ToString      DontEnum|DontDelete|Function 0
+  replace       Location::Replace       DontDelete|Function 1
+  reload        Location::Reload        DontDelete|Function 0
+@end
+*/
+KJS_IMPLEMENT_PROTOTYPE_FUNCTION(LocationFunc)
+Location::Location(Frame *p) : m_frame(p)
+{
+}
+
+JSValue *Location::getValueProperty(ExecState *exec, int token) const
+{
+  KURL url = m_frame->loader()->url();
+  switch (token) {
+  case Hash:
+    return jsString(url.ref().isNull() ? "" : "#" + url.ref());
+  case Host: {
+    // Note: this is the IE spec. The NS spec swaps the two, it says
+    // "The hostname property is the concatenation of the host and port properties, separated by a colon."
+    // Bleh.
+    UString str = url.host();
+    if (url.port())
+        str += ":" + String::number((int)url.port());
+    return jsString(str);
+  }
+  case Hostname:
+    return jsString(url.host());
+  case Href:
+    if (!url.hasPath())
+      return jsString(url.prettyURL() + "/");
+    return jsString(url.prettyURL());
+  case Pathname:
+    return jsString(url.path().isEmpty() ? "/" : url.path());
+  case Port:
+    return jsString(url.port() ? String::number((int)url.port()) : "");
+  case Protocol:
+    return jsString(url.protocol() + ":");
+  case Search:
+    return jsString(url.query());
+  default:
+    ASSERT(0);
+    return jsUndefined();
+  }
+}
+
+bool Location::getOwnPropertySlot(ExecState *exec, const Identifier& propertyName, PropertySlot& slot)
+{
+  if (!m_frame)
+    return false;
+
+  const Window* window = Window::retrieveWindow(m_frame);
+
+  const HashEntry *entry = Lookup::findEntry(&LocationTable, propertyName);
+  if (!entry || (entry->value != Replace && entry->value != Reload && entry->value != Assign))
+    if (!window || !window->isSafeScript(exec)) {
+      slot.setUndefined(this);
+      return true;
+    }
+
+  return getStaticPropertySlot<LocationFunc, Location, JSObject>(exec, &LocationTable, this, propertyName, slot);
+}
+
+void Location::put(ExecState *exec, const Identifier &p, JSValue *v, int attr)
+{
+  if (!m_frame)
+    return;
+
+  DeprecatedString str = v->toString(exec);
+  KURL url = m_frame->loader()->url();
+  const Window* window = Window::retrieveWindow(m_frame);
+  bool sameDomainAccess = window && window->isSafeScript(exec);
+
+  const HashEntry *entry = Lookup::findEntry(&LocationTable, p);
+
+  if (entry) {
+      // cross-domain access to the location is allowed when assigning the whole location,
+      // but not when assigning the individual pieces, since that might inadvertently
+      // disclose other parts of the original location.
+      if (entry->value != Href && !sameDomainAccess)
+          return;
+
+      switch (entry->value) {
+      case Href: {
+          Frame* frame = Window::retrieveActive(exec)->impl()->frame();
+          if (!frame)
+              return;
+          if (!frame->loader()->shouldAllowNavigation(m_frame))
+              return;
+          url = frame->loader()->completeURL(str).url();
+          break;
+      }
+      case Hash: {
+          if (str.startsWith("#"))
+              str = str.mid(1);
+
+          if (url.ref() == str)
+              return;
+
+          url.setRef(str);
+          break;
+      }
+      case Host: {
+          url.setHostAndPort(str);
+          break;
+      }
+      case Hostname:
+          url.setHost(str);
+          break;
+      case Pathname:
+          url.setPath(str);
+          break;
+      case Port:
+          url.setPort(str.toUInt());
+          break;
+      case Protocol:
+          url.setProtocol(str);
+          break;
+      case Search:
+          url.setQuery(str);
+          break;
+      default:
+          // Disallow changing other properties in LocationTable. e.g., "window.location.toString = ...".
+          // <http://bugs.webkit.org/show_bug.cgi?id=12720>
+          return;
+      }
+  } else {
+      if (sameDomainAccess)
+          JSObject::put(exec, p, v, attr);
+      return;
+  }
+
+  Frame* activeFrame = Window::retrieveActive(exec)->impl()->frame();
+  if (!url.url().startsWith("javascript:", false) || sameDomainAccess) {
+    bool userGesture = static_cast<ScriptInterpreter *>(exec->dynamicInterpreter())->wasRunByUserGesture();
+    m_frame->loader()->scheduleLocationChange(url.url(), activeFrame->loader()->outgoingReferrer(), false, userGesture);
+  }
+}
+
+JSValue *LocationFunc::callAsFunction(ExecState *exec, JSObject *thisObj, const List &args)
+{
+  if (!thisObj->inherits(&Location::info))
+    return throwError(exec, TypeError);
+  Location *location = static_cast<Location *>(thisObj);
+  Frame *frame = location->frame();
+  if (frame) {
+
+    Window* window = Window::retrieveWindow(frame);
+    if (id != Location::Replace && !window->isSafeScript(exec))
+        return jsUndefined();
+
+    switch (id) {
+    case Location::Replace:
+    {
+      Frame* p = Window::retrieveActive(exec)->impl()->frame();
+      if (p) {
+        if (!p->loader()->shouldAllowNavigation(frame))
+          return jsUndefined();
+        DeprecatedString str = args[0]->toString(exec);
+        const Window* window = Window::retrieveWindow(frame);
+        if (!str.startsWith("javascript:", false) || (window && window->isSafeScript(exec))) {
+          bool userGesture = static_cast<ScriptInterpreter *>(exec->dynamicInterpreter())->wasRunByUserGesture();
+          frame->loader()->scheduleLocationChange(p->loader()->completeURL(str).url(), p->loader()->outgoingReferrer(), true, userGesture);
+        }
+      }
+      break;
+    }
+    case Location::Reload:
+    {
+      const Window* window = Window::retrieveWindow(frame);
+      if (!frame->loader()->url().url().startsWith("javascript:", false) || (window && window->isSafeScript(exec))) {
+        bool userGesture = static_cast<ScriptInterpreter *>(exec->dynamicInterpreter())->wasRunByUserGesture();
+        frame->loader()->scheduleRefresh(userGesture);
+      }
+      break;
+    }
+    case Location::Assign:
+    {
+        Frame *p = Window::retrieveActive(exec)->impl()->frame();
+        if (p) {
+            if (!p->loader()->shouldAllowNavigation(frame))
+                return jsUndefined();
+            const Window *window = Window::retrieveWindow(frame);
+            DeprecatedString dstUrl = p->loader()->completeURL(DeprecatedString(args[0]->toString(exec))).url();
+            if (!dstUrl.startsWith("javascript:", false) || (window && window->isSafeScript(exec))) {
+                bool userGesture = static_cast<ScriptInterpreter *>(exec->dynamicInterpreter())->wasRunByUserGesture();
+                // We want a new history item if this JS was called via a user gesture
+                frame->loader()->scheduleLocationChange(dstUrl, p->loader()->outgoingReferrer(), false, userGesture);
+            }
+        }
+        break;
+    }
+    case Location::ToString:
+        if (!frame || !Window::retrieveWindow(frame)->isSafeScript(exec))
+            return jsString();
+
+        if (!frame->loader()->url().hasPath())
+            return jsString(frame->loader()->url().prettyURL() + "/");
+        return jsString(frame->loader()->url().prettyURL());
+    }
+  }
+  return jsUndefined();
+}
+
+/////////////////////////////////////////////////////////////////////////////
+
+PausedTimeouts::~PausedTimeouts()
+{
+    PausedTimeout *array = m_array;
+    if (!array)
+        return;
+    size_t count = m_length;
+    for (size_t i = 0; i != count; ++i)
+        delete array[i].action;
+    delete [] array;
+}
+
+void DOMWindowTimer::fired()
+{
+    timerNestingLevel = m_nestingLevel;
+    m_object->timerFired(this);
+    timerNestingLevel = 0;
+}
+
+} // namespace KJS
+
+using namespace KJS;
+
+namespace WebCore {
+
+JSValue* toJS(ExecState*, DOMWindow* domWindow)
+{
+    if (!domWindow)
+        return jsNull();
+    Frame* frame = domWindow->frame();
+    if (!frame)
+        return jsNull();
+    return Window::retrieve(frame);
+}
+
+} // namespace WebCore