gecko-dev/dom/src/base/nsGlobalWindow.cpp

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 *
 * The contents of this file are subject to the Netscape Public
 * License Version 1.1 (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy of
 * the License at http://www.mozilla.org/NPL/
 *
 * Software distributed under the License is distributed on an "AS
 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * rights and limitations under the License.
 *
 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is Netscape
 * Communications Corporation.  Portions created by Netscape are
 * Copyright (C) 1998 Netscape Communications Corporation. All
 * Rights Reserved.
 *
 * Contributor(s): 
 *   Travis Bogard <travis@netscape.com>
 */

// Local Includes
#include "nsGlobalWindow.h"
#include "nsScreen.h"
#include "nsHistory.h"
#include "nsBarProps.h"

// Helper Classes
#include "nsCOMPtr.h"
#include "nsXPIDLString.h"
#include "nsJSUtils.h"
#include "prmem.h"

// Other Classes
#include "nsEventListenerManager.h"
#include "nsEscape.h"
#include "nsDOMPropEnums.h"
#include "nsStyleCoord.h"
#include "nsHTMLReflowState.h"
#include "nsMimeTypeArray.h"
#include "nsNetUtil.h"
#include "nsPluginArray.h"
#include "nsRDFCID.h"

// Interfaces Needed
#include "nsIBaseWindow.h"
#include "nsICharsetConverterManager.h"
#include "nsICodebasePrincipal.h"
#include "nsIContent.h"
#include "nsIContentViewerFile.h"
#include "nsIContentViewerEdit.h"
#include "nsICookieService.h"
#include "nsIDocShell.h"
#include "nsIDocShellTreeItem.h"
#include "nsIDocShellTreeNode.h"
#include "nsIDocument.h"
#include "nsIDOMDocument.h"
#include "nsIDOMFocusListener.h"
#include "nsIDOMFormListener.h"
#include "nsIDOMKeyListener.h"
#include "nsIDOMLoadListener.h"
#include "nsIDOMMouseMotionListener.h"
#include "nsIDOMMouseListener.h"
#include "nsIDOMPaintListener.h"
#include "nsIEventQueueService.h"
#include "nsIHTTPProtocolHandler.h"
#include "nsIInterfaceRequestor.h"
#include "nsIMarkupDocumentViewer.h"
#include "nsIPresShell.h"
#include "nsIPrivateDOMEvent.h"
#include "nsIPrompt.h"
#include "nsIServiceManager.h"
#include "nsIScriptGlobalObjectOwner.h"
#include "nsIScriptSecurityManager.h"
#include "nsISelectionController.h"
#include "nsIWebNavigation.h"
#include "nsIWebBrowser.h"
#include "nsIWebBrowserChrome.h"
#include "nsIWebShell.h"

// XXX An unfortunate dependency exists here.
#include "nsIDOMXULDocument.h"
#include "nsIDOMXULCommandDispatcher.h"


// CIDs
static NS_DEFINE_IID(kEventQueueServiceCID, NS_EVENTQUEUESERVICE_CID);
static NS_DEFINE_CID(kPrefServiceCID, NS_PREF_CID);
static NS_DEFINE_IID(kCookieServiceCID, NS_COOKIESERVICE_CID);
static NS_DEFINE_CID(kHTTPHandlerCID, NS_IHTTPHANDLER_CID);
static NS_DEFINE_CID(kXULControllersCID, NS_XULCONTROLLERS_CID);
static NS_DEFINE_CID(kCharsetConverterManagerCID, NS_ICHARSETCONVERTERMANAGER_CID);

//*****************************************************************************
//***    GlobalWindowImpl: Object Management
//*****************************************************************************

GlobalWindowImpl::GlobalWindowImpl() : mScriptObject(nsnull),
   mNavigator(nsnull), mScreen(nsnull), mHistory(nsnull),
   mMenubar(nsnull), mToolbar(nsnull), mLocationbar(nsnull),
   mPersonalbar(nsnull), mStatusbar(nsnull), mScrollbars(nsnull),
   mLocation(nsnull), mFrames(nsnull), 
   mGlobalObjectOwner(nsnull), mTimeouts(nsnull),
   mTimeoutInsertionPoint(nsnull), mRunningTimeout(nsnull),
   mTimeoutPublicIdCounter(1), 
   mFirstDocumentLoad(PR_TRUE), mChromeEventHandler(nsnull), mDocShell(nsnull)
{
   NS_INIT_REFCNT();
}

GlobalWindowImpl::~GlobalWindowImpl() 
{  
   CleanUp();
}

void GlobalWindowImpl::CleanUp()
{
   mContext = nsnull; // Forces Release
   mDocument = nsnull; // Forces Release
   NS_IF_RELEASE(mNavigator);
   NS_IF_RELEASE(mScreen);
   NS_IF_RELEASE(mHistory);
   NS_IF_RELEASE(mMenubar);
   NS_IF_RELEASE(mToolbar);
   NS_IF_RELEASE(mLocationbar);
   NS_IF_RELEASE(mPersonalbar);
   NS_IF_RELEASE(mStatusbar);
   NS_IF_RELEASE(mScrollbars);
   NS_IF_RELEASE(mLocation);
   NS_IF_RELEASE(mFrames);
   mOpener = nsnull; // Forces Release
}

//*****************************************************************************
// GlobalWindowImpl::nsISupports
//*****************************************************************************   

NS_IMPL_ADDREF(GlobalWindowImpl)
NS_IMPL_RELEASE(GlobalWindowImpl)

NS_INTERFACE_MAP_BEGIN(GlobalWindowImpl)
   NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIScriptGlobalObject)
   NS_INTERFACE_MAP_ENTRY(nsIScriptObjectOwner)
   NS_INTERFACE_MAP_ENTRY(nsIScriptGlobalObject)
   NS_INTERFACE_MAP_ENTRY(nsIScriptObjectPrincipal)
   NS_INTERFACE_MAP_ENTRY(nsIDOMWindow)
   NS_INTERFACE_MAP_ENTRY(nsIJSScriptObject)
   NS_INTERFACE_MAP_ENTRY(nsIDOMEventReceiver)
   NS_INTERFACE_MAP_ENTRY(nsIDOMEventTarget)
   NS_INTERFACE_MAP_ENTRY(nsPIDOMWindow)
   NS_INTERFACE_MAP_ENTRY(nsIDOMAbstractView)
NS_INTERFACE_MAP_END

//*****************************************************************************
// GlobalWindowImpl::nsIScriptObjectOwner
//*****************************************************************************   

NS_IMETHODIMP GlobalWindowImpl::GetScriptObject(nsIScriptContext *aContext, 
   void** aScriptObject)
{
   NS_ENSURE_ARG_POINTER(aScriptObject);
   nsresult res = NS_OK;
   if(!mScriptObject)
      {
      res = NS_NewScriptWindow(aContext, NS_STATIC_CAST(nsIDOMWindow*,this),
                             nsnull, &mScriptObject);
      aContext->AddNamedReference(&mScriptObject, mScriptObject, 
                                "window_object");
      }
   *aScriptObject = mScriptObject;
   return res;
}

NS_IMETHODIMP GlobalWindowImpl::SetScriptObject(void *aScriptObject)
{
   mScriptObject = aScriptObject;
   return NS_OK;
}

//*****************************************************************************
// GlobalWindowImpl::nsIScriptGlobalObject
//*****************************************************************************   

NS_IMETHODIMP GlobalWindowImpl::SetContext(nsIScriptContext *aContext)
{
   mContext = aContext;
   return NS_OK; 
}

NS_IMETHODIMP GlobalWindowImpl::GetContext(nsIScriptContext **aContext)
{
   *aContext = mContext;
   NS_IF_ADDREF(*aContext);
   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::SetNewDocument(nsIDOMDocument *aDocument)
{
   if(mFirstDocumentLoad)
      {
      mFirstDocumentLoad = PR_FALSE;
      mDocument = aDocument;
      return NS_OK;
      }

   if(mDocument)
      {
      nsCOMPtr<nsIDocument> doc(do_QueryInterface(mDocument));
      nsCOMPtr<nsIURI> docURL;

      if(doc)
         {
         docURL = dont_AddRef(doc->GetDocumentURL());
         doc = nsnull; // Forces release now
         }

      if(docURL)
         {
         char* str;
         docURL->GetSpec(&str);

         nsAutoString url(str);

         //about:blank URL's do not have ClearScope called on page change.
         if(url != "about:blank")
            {
            ClearAllTimeouts();
  
            if(mListenerManager)
               mListenerManager->RemoveAllListeners(PR_FALSE);

            if(mScriptObject && mContext /*&& aDocument XXXbe why commented out?*/)
               JS_ClearScope((JSContext *)mContext->GetNativeContext(),
                              (JSObject *)mScriptObject);
            }
         nsCRT::free(str);
         }
      }

   //XXX Should this be outside the about:blank clearscope exception?
   if(mDocument)
      mDocument = nsnull; // Forces Release
   
   if(mContext) 
      mContext->GC();

   mDocument = aDocument;

   if(mDocument && mContext)
      mContext->InitContext(this);

   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::SetDocShell(nsIDocShell* aDocShell)
{
   // When SetDocShell(nsnull) is called, drop our references to the 
   // script object (held via a named JS root) and the script context
   // itself.
   if(!aDocShell && mContext)
      {
      if(mScriptObject)
         {
         // Indicate that the window is now closed. Since we've
         // cleared scope, we have to explicitly set a property.
         jsval val = BOOLEAN_TO_JSVAL(JS_TRUE);
         JS_SetProperty((JSContext*)mContext->GetNativeContext(),
                     (JSObject*)mScriptObject, "closed", &val);
         mContext->RemoveReference(&mScriptObject, mScriptObject);
         mScriptObject = nsnull;
         }
      mContext = nsnull; // force release now
      }
   mDocShell = aDocShell; // Weak Reference

   if(mLocation)
      mLocation->SetDocShell(aDocShell);
   if(mHistory)
      mHistory->SetDocShell(aDocShell);
   if(mFrames)
      mFrames->SetDocShell(aDocShell);
   if(mScreen)
      mScreen->SetDocShell(aDocShell);

   if(mDocShell)
      {
      // tell our member elements about the new browserwindow
      if(mMenubar)
         {
         nsCOMPtr<nsIWebBrowserChrome> browserChrome;
         GetWebBrowserChrome(getter_AddRefs(browserChrome));
         mMenubar->SetWebBrowserChrome(browserChrome);
         }

      // Get our enclosing chrome shell and retrieve its global window impl, so that we can
      // do some forwarding to the chrome document.
      nsCOMPtr<nsIChromeEventHandler> chromeEventHandler;
      mDocShell->GetChromeEventHandler(getter_AddRefs(chromeEventHandler));
      if(chromeEventHandler)
         mChromeEventHandler = chromeEventHandler.get(); //   ref
      }
   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::GetDocShell(nsIDocShell** aDocShell)
{
   *aDocShell = mDocShell;
   NS_IF_ADDREF(*aDocShell);
   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::SetOpenerWindow(nsIDOMWindow *aOpener)
{
   mOpener = aOpener;
   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::SetGlobalObjectOwner(nsIScriptGlobalObjectOwner* aOwner)
{
   mGlobalObjectOwner = aOwner; // Note this is supposed to be a weak ref.
   return NS_OK;   
}

NS_IMETHODIMP GlobalWindowImpl::GetGlobalObjectOwner(nsIScriptGlobalObjectOwner** aOwner)
{
   NS_ENSURE_ARG_POINTER(aOwner);

   *aOwner = mGlobalObjectOwner;
   NS_IF_ADDREF(*aOwner);
   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::HandleDOMEvent(nsIPresContext* aPresContext, 
   nsEvent* aEvent, nsIDOMEvent** aDOMEvent, PRUint32 aFlags,
   nsEventStatus* aEventStatus)
{
   nsresult ret = NS_OK;
   nsIDOMEvent* domEvent = nsnull;

   /* mChromeEventHandler and mContext go dangling in the middle of this
     function under some circumstances (events that destroy the window)
     without this addref. */
   nsCOMPtr<nsIChromeEventHandler> kungFuDeathGrip1(mChromeEventHandler);
   nsCOMPtr<nsIScriptContext> kungFuDeathGrip2(mContext);

   if(NS_EVENT_FLAG_INIT == aFlags)
      {
      aDOMEvent = &domEvent;  
      aEvent->flags = NS_EVENT_FLAG_NONE;
      }
  
   //Capturing stage
   if((NS_EVENT_FLAG_BUBBLE != aFlags) && mChromeEventHandler)
      {
      // Check chrome document capture here.
      mChromeEventHandler->HandleChromeEvent(aPresContext, aEvent, aDOMEvent, 
         NS_EVENT_FLAG_CAPTURE, aEventStatus);
      }

   //Local handling stage
   if(mListenerManager && !(aEvent->flags & NS_EVENT_FLAG_STOP_DISPATCH))
      {
      aEvent->flags |= aFlags;
      mListenerManager->HandleEvent(aPresContext, aEvent, aDOMEvent, aFlags, 
         aEventStatus);
      aEvent->flags &= ~aFlags;
      }

   //Bubbling stage
   if((NS_EVENT_FLAG_CAPTURE != aFlags) && mChromeEventHandler)
      {
      // Bubble to a chrome document if it exists
      // XXX Need a way to know if an event should really bubble or not.
      // For now filter out load and unload, since they cause problems.
      if((aEvent->message != NS_PAGE_LOAD) && 
         (aEvent->message != NS_PAGE_UNLOAD) && 
         (aEvent->message != NS_FOCUS_CONTENT) && 
         (aEvent->message != NS_BLUR_CONTENT))
         {
         mChromeEventHandler->HandleChromeEvent(aPresContext, aEvent, 
            aDOMEvent, NS_EVENT_FLAG_BUBBLE, aEventStatus);
         }
      }

   if(NS_EVENT_FLAG_INIT == aFlags)
      {
      // We're leaving the DOM event loop so if we created a DOM event, release here.
      if(*aDOMEvent)
         {
         nsrefcnt rc;
         NS_RELEASE2(*aDOMEvent, rc);
         if(rc)
            {
            //Okay, so someone in the DOM loop (a listener, JS object) still has a ref to the DOM Event but
            //the internal data hasn't been malloc'd.  Force a copy of the data here so the DOM Event is still valid.
            nsCOMPtr<nsIPrivateDOMEvent> privateEvent(do_QueryInterface(*aDOMEvent));
            if(privateEvent)
               privateEvent->DuplicatePrivateData();
            }
         }
      aDOMEvent = nsnull;
      }

   return ret;
}

//*****************************************************************************
// GlobalWindowImpl::nsIScriptObjectPrincipal
//*****************************************************************************   

NS_IMETHODIMP GlobalWindowImpl::GetPrincipal(nsIPrincipal **result) 
{
   nsCOMPtr<nsIDocument> doc(do_QueryInterface(mDocument));
   if(doc)
      return doc->GetPrincipal(result);
   return NS_ERROR_FAILURE;
}

//*****************************************************************************
// GlobalWindowImpl::nsIDOMWindow
//*****************************************************************************   

NS_IMETHODIMP GlobalWindowImpl::GetWindow(nsIDOMWindow** aWindow)
{
   *aWindow = NS_STATIC_CAST(nsIDOMWindow*, this);
   NS_ADDREF(*aWindow);
   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::GetSelf(nsIDOMWindow** aWindow)
{
   *aWindow = NS_STATIC_CAST(nsIDOMWindow*, this);
   NS_ADDREF(*aWindow);
   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::GetDocument(nsIDOMDocument** aDocument)
{
   *aDocument = mDocument;
   NS_IF_ADDREF(*aDocument);
   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::GetNavigator(nsIDOMNavigator** aNavigator)
{
   if(!mNavigator)
      {
      mNavigator = new NavigatorImpl();
      NS_ENSURE_TRUE(mNavigator, NS_ERROR_OUT_OF_MEMORY);
      NS_ADDREF(mNavigator);
      }

   *aNavigator = mNavigator;
   NS_ADDREF(*aNavigator);

   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::GetScreen(nsIDOMScreen** aScreen)
{
   if(!mScreen && mDocShell)
      {
      mScreen = new ScreenImpl(mDocShell);
      NS_ENSURE_TRUE(mScreen, NS_ERROR_OUT_OF_MEMORY);
      NS_ADDREF(mScreen);
      }
    
   *aScreen = mScreen;
   NS_ADDREF(*aScreen);
   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::GetHistory(nsIDOMHistory** aHistory)
{
   if(!mHistory && mDocShell)
      {
      mHistory = new HistoryImpl(mDocShell);
      NS_ENSURE_TRUE(mHistory, NS_ERROR_OUT_OF_MEMORY);
      NS_ADDREF(mHistory);
      }
   *aHistory = mHistory;
   NS_ADDREF(*aHistory);
   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::GetParent(nsIDOMWindow** aParent)
{
   NS_ENSURE_ARG_POINTER(aParent);
   *aParent = nsnull;
   if(!mDocShell)
      return NS_OK;

   nsCOMPtr<nsIDocShellTreeItem> docShellAsItem(do_QueryInterface(mDocShell));
   NS_ENSURE_TRUE(docShellAsItem, NS_ERROR_FAILURE);

   nsCOMPtr<nsIDocShellTreeItem> parent;
   docShellAsItem->GetSameTypeParent(getter_AddRefs(parent));

   if(parent)
      {
      nsCOMPtr<nsIScriptGlobalObject> globalObject(do_GetInterface(parent));
      NS_ENSURE_SUCCESS(CallQueryInterface(globalObject.get(), aParent),
         NS_ERROR_FAILURE);
      }
   else
      {
      *aParent = NS_STATIC_CAST(nsIDOMWindow*, this);
      NS_ADDREF(*aParent);
      }
   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::GetTop(nsIDOMWindow** aTop)
{
   nsresult ret = NS_OK;

   *aTop = nsnull;
   if(mDocShell)
      {
      nsCOMPtr<nsIDocShellTreeItem> docShellAsItem(do_QueryInterface(mDocShell));
      nsCOMPtr<nsIDocShellTreeItem> root;
      docShellAsItem->GetSameTypeRootTreeItem(getter_AddRefs(root));

      if(root)
         {
         nsCOMPtr<nsIScriptGlobalObject> globalObject(do_GetInterface(root));
         CallQueryInterface(globalObject.get(), aTop);
         }
      }

  return ret;
}

NS_IMETHODIMP GlobalWindowImpl::GetContent(nsIDOMWindow** aContent)
{
  *aContent = nsnull;

  nsCOMPtr<nsIDocShellTreeOwner> treeOwner;
  GetTreeOwner(getter_AddRefs(treeOwner));
  NS_ENSURE_TRUE(treeOwner, NS_ERROR_FAILURE);

  nsCOMPtr<nsIDocShellTreeItem> primaryContent;
  treeOwner->GetPrimaryContentShell(getter_AddRefs(primaryContent));

  nsCOMPtr<nsIDOMWindow> domWindow(do_GetInterface(primaryContent));
  *aContent = domWindow;
  NS_IF_ADDREF(*aContent);

  return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::GetMenubar(nsIDOMBarProp** aMenubar)
{
   if(!mMenubar)
      {
      mMenubar = new MenubarPropImpl();
      if(mMenubar)
         {
         NS_ADDREF(mMenubar);
         nsCOMPtr<nsIWebBrowserChrome> browserChrome;
         if(mDocShell && NS_OK == GetWebBrowserChrome(getter_AddRefs(browserChrome)))
            mMenubar->SetWebBrowserChrome(browserChrome);
         }
      }

   *aMenubar = mMenubar;
   NS_IF_ADDREF(mMenubar);
   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::GetToolbar(nsIDOMBarProp** aToolbar)
{
   if(!mToolbar)
      {
      mToolbar = new ToolbarPropImpl();
      if(mToolbar)
         {
         NS_ADDREF(mToolbar);
         nsCOMPtr<nsIWebBrowserChrome> browserChrome;
         if(mDocShell && NS_OK == GetWebBrowserChrome(getter_AddRefs(browserChrome)))
            mToolbar->SetWebBrowserChrome(browserChrome);
         }
      }

   *aToolbar = mToolbar;
   NS_IF_ADDREF(mToolbar);
   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::GetLocationbar(nsIDOMBarProp** aLocationbar)
{
   if(!mLocationbar) 
      {
      mLocationbar = new LocationbarPropImpl();
      if(mLocationbar)
         {
         NS_ADDREF(mLocationbar);
         nsCOMPtr<nsIWebBrowserChrome> browserChrome;
         if(mDocShell && NS_OK == GetWebBrowserChrome(getter_AddRefs(browserChrome)))
            mLocationbar->SetWebBrowserChrome(browserChrome);
         }
      }

   *aLocationbar = mLocationbar;
   NS_IF_ADDREF(mLocationbar);
   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::GetPersonalbar(nsIDOMBarProp** aPersonalbar)
{
   if(!mPersonalbar)
      {
      mPersonalbar = new PersonalbarPropImpl();
      if(mPersonalbar)
         {
         NS_ADDREF(mPersonalbar);
         nsCOMPtr<nsIWebBrowserChrome> browserChrome;
         if(mDocShell && NS_OK == GetWebBrowserChrome(getter_AddRefs(browserChrome)))
            mPersonalbar->SetWebBrowserChrome(browserChrome);
         }
      }

   *aPersonalbar = mPersonalbar;
   NS_IF_ADDREF(mPersonalbar);
   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::GetStatusbar(nsIDOMBarProp** aStatusbar)
{
   if(!mStatusbar)
      {
      mStatusbar = new StatusbarPropImpl();
      if(mStatusbar)
         {
         NS_ADDREF(mStatusbar);
         nsCOMPtr<nsIWebBrowserChrome> browserChrome;
         if(mDocShell && NS_OK == GetWebBrowserChrome(getter_AddRefs(browserChrome)))
            mStatusbar->SetWebBrowserChrome(browserChrome);
         }
      }

   *aStatusbar = mStatusbar;
   NS_IF_ADDREF(mStatusbar);
   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::GetScrollbars(nsIDOMBarProp** aScrollbars)
{
   if(!mScrollbars)
      {
      mScrollbars = new ScrollbarsPropImpl();
      if(mScrollbars)
         {
         NS_ADDREF(mScrollbars);
         nsCOMPtr<nsIWebBrowserChrome> browserChrome;
         if(mDocShell && NS_OK == GetWebBrowserChrome(getter_AddRefs(browserChrome)))
            mScrollbars->SetWebBrowserChrome(browserChrome);
         }
      }

   *aScrollbars = mScrollbars;
   NS_IF_ADDREF(mScrollbars);
   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::GetDirectories(nsIDOMBarProp** aDirectories)
{
   return GetPersonalbar(aDirectories);
}

NS_IMETHODIMP GlobalWindowImpl::GetClosed(PRBool* aClosed)
{
   if(!mDocShell)
      *aClosed = PR_TRUE;
   else 
      *aClosed = PR_FALSE;

   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::GetFrames(nsIDOMWindowCollection** aFrames)
{
   if(!mFrames && mDocShell)
      {
      mFrames = new nsDOMWindowList(mDocShell);
      NS_ENSURE_TRUE(mFrames, NS_ERROR_OUT_OF_MEMORY);
      NS_ADDREF(mFrames);
      }

   *aFrames = NS_STATIC_CAST(nsIDOMWindowCollection*, mFrames);
   NS_IF_ADDREF(mFrames);

   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::GetControllers(nsIControllers** aResult)
{
   if(!mControllers)
      {
      mControllers = do_CreateInstance(kXULControllersCID);
      NS_ENSURE_TRUE(mControllers, NS_ERROR_FAILURE);
      #ifdef DOM_CONTROLLER
      // Add in the default controller
    	nsDOMWindowController* domController = new nsDOMWindowController(this);
    	if(domController)
    	   {
			nsCOMPtr<nsIController> controller(domController);
			mControllers->AppendController(controller);
		   }
      #endif // DOM_CONTROLLER
      }
   *aResult = mControllers;
   NS_ADDREF(*aResult);
   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::GetOpener(nsIDOMWindow** aOpener)
{
   *aOpener = mOpener;
   NS_IF_ADDREF(*aOpener);
   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::SetOpener(nsIDOMWindow* aOpener)
{
   mOpener = aOpener;
   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::GetStatus(nsString& aStatus)
{
   aStatus = mStatus;
   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::SetStatus(const nsString& aStatus)
{
   mStatus = aStatus;

   nsCOMPtr<nsIWebBrowserChrome> browserChrome;
   GetWebBrowserChrome(getter_AddRefs(browserChrome));
   if(browserChrome)
      browserChrome->SetJSStatus(aStatus.GetUnicode());

   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::GetDefaultStatus(nsString& aDefaultStatus)
{
   aDefaultStatus = mDefaultStatus;
   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::SetDefaultStatus(const nsString& aDefaultStatus)
{
   mDefaultStatus = aDefaultStatus;

   nsCOMPtr<nsIWebBrowserChrome> browserChrome;
   GetWebBrowserChrome(getter_AddRefs(browserChrome));
   if(browserChrome)
      browserChrome->SetJSDefaultStatus(aDefaultStatus.GetUnicode());

   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::GetName(nsString& aName)
{
   nsXPIDLString name;
   nsCOMPtr<nsIDocShellTreeItem> docShellAsItem(do_QueryInterface(mDocShell));
   if(docShellAsItem)
      docShellAsItem->GetName(getter_Copies(name));

   aName = name;
   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::SetName(const nsString& aName)
{
   nsresult result = NS_OK;
   nsCOMPtr<nsIDocShellTreeItem> docShellAsItem(do_QueryInterface(mDocShell));
   if(docShellAsItem)
      result = docShellAsItem->SetName(aName.GetUnicode());
   return result;
}

NS_IMETHODIMP GlobalWindowImpl::GetInnerWidth(PRInt32* aInnerWidth)
{
   nsCOMPtr<nsIDOMWindow> parent;

   nsCOMPtr<nsIBaseWindow> docShellWin(do_QueryInterface(mDocShell));
   *aInnerWidth = 0;
   if(docShellWin)
      docShellWin->GetSize(aInnerWidth, nsnull);
  
   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::SetInnerWidth(PRInt32 aInnerWidth)
{
   nsCOMPtr<nsIDocShellTreeItem> docShellAsItem(do_QueryInterface(mDocShell));
   NS_ENSURE_TRUE(docShellAsItem, NS_ERROR_FAILURE);

   nsCOMPtr<nsIDocShellTreeItem> docShellParent;
   docShellAsItem->GetSameTypeParent(getter_AddRefs(docShellParent));

   // It's only valid to access this from a top window.  Doesn't work from 
   // sub-frames.
   if(!docShellParent) 
      {
      nsCOMPtr<nsIDocShellTreeOwner> treeOwner;
      docShellAsItem->GetTreeOwner(getter_AddRefs(treeOwner));
      NS_ENSURE_TRUE(treeOwner, NS_ERROR_FAILURE);

      nsCOMPtr<nsIBaseWindow> docShellAsWin(do_QueryInterface(mDocShell));
      PRInt32 cy = 0;
      docShellAsWin->GetSize(nsnull, &cy);
      NS_ENSURE_SUCCESS(treeOwner->SizeShellTo(docShellAsItem, aInnerWidth, cy),
         NS_ERROR_FAILURE); 
      }
   else
      return NS_ERROR_FAILURE;
  return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::GetInnerHeight(PRInt32* aInnerHeight)
{
   nsCOMPtr<nsIDOMWindow> parent;
   
   FlushPendingNotifications();

   nsCOMPtr<nsIBaseWindow> docShellWin(do_QueryInterface(mDocShell));
   *aInnerHeight = 0;
   if(docShellWin)
      docShellWin->GetSize(nsnull, aInnerHeight);
  
   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::SetInnerHeight(PRInt32 aInnerHeight)
{
   nsCOMPtr<nsIDocShellTreeItem> docShellAsItem(do_QueryInterface(mDocShell));
   NS_ENSURE_TRUE(docShellAsItem, NS_ERROR_FAILURE);

   nsCOMPtr<nsIDocShellTreeItem> docShellParent;
   docShellAsItem->GetSameTypeParent(getter_AddRefs(docShellParent));

   // It's only valid to access this from a top window.  Doesn't work from 
   // sub-frames.
   if(!docShellParent) 
      {
      nsCOMPtr<nsIDocShellTreeOwner> treeOwner;
      docShellParent->GetTreeOwner(getter_AddRefs(treeOwner));
      NS_ENSURE_TRUE(treeOwner, NS_ERROR_FAILURE);

      nsCOMPtr<nsIBaseWindow> docShellAsWin(do_QueryInterface(mDocShell));
      PRInt32 cx = 0;
      docShellAsWin->GetSize(&cx, nsnull);
      NS_ENSURE_SUCCESS(treeOwner->SizeShellTo(docShellAsItem, cx, aInnerHeight),
         NS_ERROR_FAILURE); 
      }
   else
      return NS_ERROR_FAILURE;
  return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::GetOuterWidth(PRInt32* aOuterWidth)
{
   nsCOMPtr<nsIBaseWindow> treeOwnerAsWin;
   GetTreeOwner(getter_AddRefs(treeOwnerAsWin));
   NS_ENSURE_TRUE(treeOwnerAsWin, NS_ERROR_FAILURE);

   FlushPendingNotifications();

   NS_ENSURE_SUCCESS(treeOwnerAsWin->GetSize(aOuterWidth, nsnull),
      NS_ERROR_FAILURE);

   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::SetOuterWidth(PRInt32 aOuterWidth)
{
   nsCOMPtr<nsIBaseWindow> treeOwnerAsWin;
   GetTreeOwner(getter_AddRefs(treeOwnerAsWin));
   NS_ENSURE_TRUE(treeOwnerAsWin, NS_ERROR_FAILURE);

   PRInt32 cy;
   NS_ENSURE_SUCCESS(treeOwnerAsWin->GetSize(nsnull, &cy),
      NS_ERROR_FAILURE);

   NS_ENSURE_SUCCESS(treeOwnerAsWin->SetSize(aOuterWidth, cy, PR_FALSE), 
      NS_ERROR_FAILURE);

   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::GetOuterHeight(PRInt32* aOuterHeight)
{
   nsCOMPtr<nsIBaseWindow> treeOwnerAsWin;
   GetTreeOwner(getter_AddRefs(treeOwnerAsWin));
   NS_ENSURE_TRUE(treeOwnerAsWin, NS_ERROR_FAILURE);

   FlushPendingNotifications();

   NS_ENSURE_SUCCESS(treeOwnerAsWin->GetSize(nsnull, aOuterHeight),
      NS_ERROR_FAILURE);

   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::SetOuterHeight(PRInt32 aOuterHeight)
{
   nsCOMPtr<nsIBaseWindow> treeOwnerAsWin;
   GetTreeOwner(getter_AddRefs(treeOwnerAsWin));
   NS_ENSURE_TRUE(treeOwnerAsWin, NS_ERROR_FAILURE);

   PRInt32 cx;
   NS_ENSURE_SUCCESS(treeOwnerAsWin->GetSize(&cx, nsnull),
      NS_ERROR_FAILURE);

   NS_ENSURE_SUCCESS(treeOwnerAsWin->SetSize(cx, aOuterHeight, PR_FALSE), 
      NS_ERROR_FAILURE);

   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::GetScreenX(PRInt32* aScreenX)
{
   nsCOMPtr<nsIBaseWindow> treeOwnerAsWin;
   GetTreeOwner(getter_AddRefs(treeOwnerAsWin));
   NS_ENSURE_TRUE(treeOwnerAsWin, NS_ERROR_FAILURE);

   FlushPendingNotifications();

   NS_ENSURE_SUCCESS(treeOwnerAsWin->GetPosition(aScreenX, nsnull),
      NS_ERROR_FAILURE);

   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::SetScreenX(PRInt32 aScreenX)
{
   nsCOMPtr<nsIBaseWindow> treeOwnerAsWin;
   GetTreeOwner(getter_AddRefs(treeOwnerAsWin));
   NS_ENSURE_TRUE(treeOwnerAsWin, NS_ERROR_FAILURE);

   PRInt32 y;
   NS_ENSURE_SUCCESS(treeOwnerAsWin->GetPosition(nsnull, &y),
      NS_ERROR_FAILURE);

   NS_ENSURE_SUCCESS(treeOwnerAsWin->SetPosition(aScreenX, y), 
      NS_ERROR_FAILURE);

   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::GetScreenY(PRInt32* aScreenY)
{
   nsCOMPtr<nsIBaseWindow> treeOwnerAsWin;
   GetTreeOwner(getter_AddRefs(treeOwnerAsWin));
   NS_ENSURE_TRUE(treeOwnerAsWin, NS_ERROR_FAILURE);

   FlushPendingNotifications();

   NS_ENSURE_SUCCESS(treeOwnerAsWin->GetPosition(nsnull, aScreenY),
      NS_ERROR_FAILURE);

   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::SetScreenY(PRInt32 aScreenY)
{
   nsCOMPtr<nsIBaseWindow> treeOwnerAsWin;
   GetTreeOwner(getter_AddRefs(treeOwnerAsWin));
   NS_ENSURE_TRUE(treeOwnerAsWin, NS_ERROR_FAILURE);

   PRInt32 x;
   NS_ENSURE_SUCCESS(treeOwnerAsWin->GetPosition(&x, nsnull),
      NS_ERROR_FAILURE);

   NS_ENSURE_SUCCESS(treeOwnerAsWin->SetPosition(x, aScreenY), 
      NS_ERROR_FAILURE);

   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::GetPageXOffset(PRInt32* aPageXOffset)
{
   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::SetPageXOffset(PRInt32 aPageXOffset)
{
   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::GetPageYOffset(PRInt32* aPageYOffset)
{
   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::SetPageYOffset(PRInt32 aPageYOffset)
{
   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::GetScrollX(PRInt32* aScrollX)
{
   nsresult result;
   nsCOMPtr<nsIScrollableView> view;
   float p2t, t2p;

   FlushPendingNotifications();

   GetScrollInfo(getter_AddRefs(view), &p2t, &t2p);
   if(view)
      {
      nscoord xPos, yPos;
      result = view->GetScrollPosition(xPos, yPos);
      *aScrollX = NSTwipsToIntPixels(xPos, t2p);
      }

   return result;
}

NS_IMETHODIMP GlobalWindowImpl::GetScrollY(PRInt32* aScrollY)
{
   nsresult result;
   nsCOMPtr<nsIScrollableView> view;
   float p2t, t2p;

   FlushPendingNotifications();

   GetScrollInfo(getter_AddRefs(view), &p2t, &t2p);
   if(view)
      {
      nscoord xPos, yPos;
      result = view->GetScrollPosition(xPos, yPos);
      *aScrollY = NSTwipsToIntPixels(yPos, t2p);
      }

   return result;
}

NS_IMETHODIMP GlobalWindowImpl::Dump(const nsString& aStr)
{
   char *cstr = aStr.ToNewCString();
  
#ifdef XP_MAC
   // have to convert \r to \n so that printing to the console works
   char *c = cstr, *cEnd = cstr + aStr.Length();
   while(c < cEnd)
      {
      if(*c == '\r')
         *c = '\n';
      c++;
      }
#endif

   if(cstr)
      {
      printf("%s", cstr);
      nsCRT::free(cstr);
      }
  
  return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::Alert(JSContext* cx, jsval* argv, PRUint32 argc)
{                                                           
   NS_ENSURE_STATE(mDocShell);

   nsAutoString str;

   if(argc > 0)
      nsJSUtils::nsConvertJSValToString(str, cx, argv[0]);
   else
      str.SetString("undefined");

   //XXXEMBEDDING really we should just instantiate a prompter service
   // don't bother calling up the stack.
   // nsCOMPtr<nsIPrompt> prompter(do_CreateInstance(NS_PROMPT_PROGID));
   // XXX This create instance should be the progid

   nsCOMPtr<nsIDocShellTreeOwner> treeOwner;
   GetTreeOwner(getter_AddRefs(treeOwner));
   NS_ENSURE_TRUE(treeOwner, NS_ERROR_FAILURE);
   nsCOMPtr<nsIPrompt> prompter(do_GetInterface(treeOwner));

   NS_ENSURE_TRUE(prompter, NS_ERROR_FAILURE);

   return prompter->Alert(str.GetUnicode());
}

NS_IMETHODIMP GlobalWindowImpl::Confirm(JSContext* cx, jsval* argv,
   PRUint32 argc, PRBool* aReturn)
{
   NS_ENSURE_STATE(mDocShell);
  
   nsAutoString str;

   *aReturn = PR_FALSE;
   if(argc > 0)
      nsJSUtils::nsConvertJSValToString(str, cx, argv[0]);
   else
      str.SetString("undefined");

   //XXXEMBEDDING really we should just instantiate a prompter service
   // don't bother calling up the stack.
   // nsCOMPtr<nsIPrompt> prompter(do_CreateInstance(NS_PROMPT_PROGID));
   // XXX This create instance should be the progid

   nsCOMPtr<nsIDocShellTreeOwner> treeOwner;
   GetTreeOwner(getter_AddRefs(treeOwner));
   NS_ENSURE_TRUE(treeOwner, NS_ERROR_FAILURE);
   nsCOMPtr<nsIPrompt> prompter(do_GetInterface(treeOwner));

   NS_ENSURE_TRUE(prompter, NS_ERROR_FAILURE);

   return prompter->Confirm(str.GetUnicode(), aReturn);
}

NS_IMETHODIMP GlobalWindowImpl::Prompt(JSContext* cx, jsval* argv, 
   PRUint32 argc, nsString& aReturn)
{
   NS_ENSURE_STATE(mDocShell);

   nsresult ret = NS_OK;
   nsAutoString str, initial;

   aReturn.Truncate();
   if(argc > 0)
      {
      nsJSUtils::nsConvertJSValToString(str, cx, argv[0]);
   
      if(argc > 1)
         nsJSUtils::nsConvertJSValToString(initial, cx, argv[1]);
      else 
         initial.SetString("undefined");
      }

   //XXXEMBEDDING really we should just instantiate a prompter service
   // don't bother calling up the stack.
   // nsCOMPtr<nsIPrompt> prompter(do_CreateInstance(NS_PROMPT_PROGID));
   // XXX This create instance should be the progid

   nsCOMPtr<nsIDocShellTreeOwner> treeOwner;
   GetTreeOwner(getter_AddRefs(treeOwner));
   NS_ENSURE_TRUE(treeOwner, NS_ERROR_FAILURE);
   nsCOMPtr<nsIPrompt> prompter(do_GetInterface(treeOwner));

   NS_ENSURE_TRUE(prompter, NS_ERROR_FAILURE);

   PRBool b;
   PRUnichar* uniResult = nsnull;
   ret = prompter->Prompt(str.GetUnicode(), initial.GetUnicode(), &uniResult, &b);
   aReturn = uniResult;
   if(uniResult)
      nsAllocator::Free(uniResult);
   if(NS_FAILED(ret) || !b)
      {
      // XXX Need to check return value and return null if the
      // user hits cancel. Currently, we can only return a 
      // string reference.
      aReturn.SetString("");
      }

  return ret;
}

NS_IMETHODIMP GlobalWindowImpl::Focus()
{
   nsCOMPtr<nsIBaseWindow> treeOwnerAsWin;
   GetTreeOwner(getter_AddRefs(treeOwnerAsWin));
   NS_ENSURE_TRUE(treeOwnerAsWin, NS_ERROR_FAILURE);

   treeOwnerAsWin->SetVisibility(PR_TRUE);

   nsCOMPtr<nsIPresShell> presShell;
   mDocShell->GetPresShell(getter_AddRefs(presShell));
   
   nsresult result = NS_OK;
   if(presShell)
      {
      nsCOMPtr<nsIViewManager> vm;
      presShell->GetViewManager(getter_AddRefs(vm));
      if(vm)
         {
         nsCOMPtr<nsIWidget> widget;
         vm->GetWidget(getter_AddRefs(widget));
         if(widget)
            result = widget->SetFocus();
         }
      }

   return result;
}

NS_IMETHODIMP GlobalWindowImpl::Blur()
{
   nsresult result = NS_OK;
   nsCOMPtr<nsIWebShell> webShell(do_QueryInterface(mDocShell));
   if(webShell)
      result = webShell->RemoveFocus();

   return result;
}

NS_IMETHODIMP GlobalWindowImpl::Back()
{
   nsCOMPtr<nsIWebNavigation> webNav(do_QueryInterface(mDocShell));
   NS_ENSURE_TRUE(webNav, NS_ERROR_FAILURE);

   return webNav->GoBack();
}

NS_IMETHODIMP GlobalWindowImpl::Forward()
{
   nsCOMPtr<nsIWebNavigation> webNav(do_QueryInterface(mDocShell));
   NS_ENSURE_TRUE(webNav, NS_ERROR_FAILURE);

   return webNav->GoForward();
}

NS_IMETHODIMP GlobalWindowImpl::Home()
{
   if(!mDocShell)
      return NS_OK;

   nsCOMPtr<nsIPref> prefs(do_GetService(kPrefServiceCID));
   NS_ENSURE_TRUE(prefs, NS_ERROR_FAILURE);

   // if we get here, we know prefs is not null
   char *url = nsnull;
   prefs->CopyCharPref(PREF_BROWSER_STARTUP_HOMEPAGE, &url);
   nsString homeURL;
   if(!url)
      {
      // if all else fails, use this
#ifdef DEBUG_seth
      printf("all else failed.  using %s as the home page\n",DEFAULT_HOME_PAGE);
#endif
      homeURL = DEFAULT_HOME_PAGE;
      }
   else 
      homeURL = url;
   PR_FREEIF(url);
   nsCOMPtr<nsIWebShell> webShell(do_QueryInterface(mDocShell));
   return webShell->LoadURL(homeURL.GetUnicode());
}

NS_IMETHODIMP GlobalWindowImpl::Stop()
{
   nsCOMPtr<nsIWebNavigation> webNav(do_QueryInterface(mDocShell));
   return webNav->Stop();
}

NS_IMETHODIMP GlobalWindowImpl::Print()
{
   if(mDocShell)
      {
      nsCOMPtr<nsIContentViewer> viewer;
      mDocShell->GetContentViewer(getter_AddRefs(viewer));
      if(viewer)
         {
         nsCOMPtr<nsIContentViewerFile> viewerFile(do_QueryInterface(viewer));
         if(viewerFile)
         return viewerFile->Print(PR_FALSE, nsnull);
         }
      }
   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::MoveTo(PRInt32 aXPos, PRInt32 aYPos)
{
   nsCOMPtr<nsIBaseWindow> treeOwnerAsWin;
   GetTreeOwner(getter_AddRefs(treeOwnerAsWin));
   NS_ENSURE_TRUE(treeOwnerAsWin, NS_ERROR_FAILURE);

   NS_ENSURE_SUCCESS(treeOwnerAsWin->SetPosition(aXPos, aYPos), 
      NS_ERROR_FAILURE);

   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::MoveBy(PRInt32 aXDif, PRInt32 aYDif)
{
   nsCOMPtr<nsIBaseWindow> treeOwnerAsWin;
   GetTreeOwner(getter_AddRefs(treeOwnerAsWin));
   NS_ENSURE_TRUE(treeOwnerAsWin, NS_ERROR_FAILURE);

   PRInt32 x, y;
   NS_ENSURE_SUCCESS(treeOwnerAsWin->GetPosition(&x, &y),
      NS_ERROR_FAILURE);

   NS_ENSURE_SUCCESS(treeOwnerAsWin->SetPosition(x + aXDif, y + aYDif), 
      NS_ERROR_FAILURE);

   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::ResizeTo(PRInt32 aWidth, PRInt32 aHeight)
{
   nsCOMPtr<nsIBaseWindow> treeOwnerAsWin;
   GetTreeOwner(getter_AddRefs(treeOwnerAsWin));
   NS_ENSURE_TRUE(treeOwnerAsWin, NS_ERROR_FAILURE);

   PRInt32 cy;
   NS_ENSURE_SUCCESS(treeOwnerAsWin->GetSize(nsnull, &cy),
      NS_ERROR_FAILURE);

   NS_ENSURE_SUCCESS(treeOwnerAsWin->SetSize(aWidth, aHeight, PR_FALSE), 
      NS_ERROR_FAILURE);

   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::ResizeBy(PRInt32 aWidthDif, PRInt32 aHeightDif)
{
   nsCOMPtr<nsIBaseWindow> treeOwnerAsWin;
   GetTreeOwner(getter_AddRefs(treeOwnerAsWin));
   NS_ENSURE_TRUE(treeOwnerAsWin, NS_ERROR_FAILURE);

   PRInt32 cx, cy;
   NS_ENSURE_SUCCESS(treeOwnerAsWin->GetSize(&cx, &cy),
      NS_ERROR_FAILURE);

   NS_ENSURE_SUCCESS(treeOwnerAsWin->SetSize(cx + aWidthDif, cy + aHeightDif,
      PR_FALSE), NS_ERROR_FAILURE);

   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::SizeToContent()
{
   nsCOMPtr<nsIDocShellTreeItem> docShellAsItem(do_QueryInterface(mDocShell));
   NS_ENSURE_TRUE(docShellAsItem, NS_ERROR_FAILURE);

   nsCOMPtr<nsIDocShellTreeItem> docShellParent;
   docShellAsItem->GetSameTypeParent(getter_AddRefs(docShellParent));

   // It's only valid to access this from a top window.  Doesn't work from 
   // sub-frames.
   if(docShellParent)
      return NS_ERROR_FAILURE;

    nsCOMPtr<nsIContentViewer> cv;
    mDocShell->GetContentViewer(getter_AddRefs(cv));
    nsCOMPtr<nsIMarkupDocumentViewer> markupViewer(do_QueryInterface(cv));
    NS_ENSURE_TRUE(markupViewer, NS_ERROR_FAILURE);
    NS_ENSURE_SUCCESS(markupViewer->SizeToContent(), NS_ERROR_FAILURE);

    return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::GetAttention()
{
   nsCOMPtr<nsIBaseWindow> treeOwnerAsWin;
   GetTreeOwner(getter_AddRefs(treeOwnerAsWin));
   NS_ENSURE_TRUE(treeOwnerAsWin, NS_ERROR_FAILURE);

   nsCOMPtr<nsIWidget> widget;
   treeOwnerAsWin->GetMainWidget(getter_AddRefs(widget));
   NS_ENSURE_TRUE(widget, NS_ERROR_FAILURE);
   NS_ENSURE_SUCCESS(widget->GetAttention(), NS_ERROR_FAILURE);

   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::Scroll(PRInt32 aXScroll, PRInt32 aYScroll)
{
   return ScrollTo(aXScroll, aYScroll);
}

NS_IMETHODIMP GlobalWindowImpl::ScrollTo(PRInt32 aXScroll, PRInt32 aYScroll)
{
   nsresult result;
   nsCOMPtr<nsIScrollableView> view;
   float p2t, t2p;
   result = GetScrollInfo(getter_AddRefs(view), &p2t, &t2p);

   if(view)
      {
      result = view->ScrollTo(NSIntPixelsToTwips(aXScroll, p2t),
                            NSIntPixelsToTwips(aYScroll, p2t), 
                            NS_VMREFRESH_IMMEDIATE);
      }
  
   return result;
}

NS_IMETHODIMP GlobalWindowImpl::ScrollBy(PRInt32 aXScrollDif, PRInt32 aYScrollDif)
{
   nsresult result;
   nsCOMPtr<nsIScrollableView> view;
   float p2t, t2p;
   result = GetScrollInfo(getter_AddRefs(view), &p2t, &t2p);
   
   if(view)
      {
      nscoord xPos, yPos;
      result = view->GetScrollPosition(xPos, yPos);
      if(NS_SUCCEEDED(result))
         {
         result = view->ScrollTo(xPos + NSIntPixelsToTwips(aXScrollDif, p2t),
                              yPos + NSIntPixelsToTwips(aYScrollDif, p2t), 
                              NS_VMREFRESH_IMMEDIATE);
         }
      }

   return result;
}

NS_IMETHODIMP GlobalWindowImpl::ClearTimeout(PRInt32 aTimerID)
{
   return ClearTimeoutOrInterval(aTimerID);
}

NS_IMETHODIMP GlobalWindowImpl::ClearInterval(PRInt32 aTimerID)
{
   return ClearTimeoutOrInterval(aTimerID);
}

NS_IMETHODIMP GlobalWindowImpl::SetTimeout(JSContext* cx, jsval* argv, 
   PRUint32 argc, PRInt32* aReturn)
{
   return SetTimeoutOrInterval(cx, argv, argc, aReturn, PR_FALSE);
}

NS_IMETHODIMP GlobalWindowImpl::SetInterval(JSContext* cx, jsval* argv, 
   PRUint32 argc, PRInt32* aReturn)
{
   return SetTimeoutOrInterval(cx, argv, argc, aReturn, PR_TRUE);
}

NS_IMETHODIMP GlobalWindowImpl::CaptureEvents(PRInt32 aEventFlags)
{
   nsCOMPtr<nsIEventListenerManager> manager;

   GetListenerManager(getter_AddRefs(manager));
   if(manager)
      {
      // manager->CaptureEvent(aListener);
      return NS_OK;
      }

   return NS_ERROR_FAILURE;
}

NS_IMETHODIMP GlobalWindowImpl::ReleaseEvents(PRInt32 aEventFlags)
{
   if(mListenerManager)
      {
      //mListenerManager->ReleaseEvent(aListener);
      return NS_OK;
      }
   return NS_ERROR_FAILURE;
}

NS_IMETHODIMP GlobalWindowImpl::RouteEvent(nsIDOMEvent* aEvt)
{
   //XXX Not the best solution -joki
   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::EnableExternalCapture()
{
   return NS_ERROR_FAILURE;
}

NS_IMETHODIMP GlobalWindowImpl::DisableExternalCapture()
{
   return NS_ERROR_FAILURE;
}

NS_IMETHODIMP GlobalWindowImpl::Open(JSContext* cx, jsval* argv, PRUint32 argc, 
   nsIDOMWindow** aReturn)
{
   return OpenInternal(cx, argv, argc, PR_FALSE, aReturn);
}

// like Open, but attaches to the new window any extra parameters past 
// [features] as a JS property named "arguments"
NS_IMETHODIMP GlobalWindowImpl::OpenDialog(JSContext* cx, jsval* argv, 
   PRUint32 argc, nsIDOMWindow** aReturn)
{
   return OpenInternal(cx, argv, argc, PR_TRUE, aReturn);
}

NS_IMETHODIMP GlobalWindowImpl::Close()
{
  // Note: the basic security check, rejecting windows not opened through JS,
  // has been removed. This was approved long ago by ...you're going to call me
  // on this, aren't you... well it was. And anyway, a better means is coming.
  // In the new world of application-level interfaces being written in JS, this
  // security check was causing problems.
  nsCOMPtr<nsIBaseWindow> treeOwnerAsWin;
  GetTreeOwner(getter_AddRefs(treeOwnerAsWin));
  NS_ENSURE_TRUE(treeOwnerAsWin, NS_ERROR_FAILURE);

  treeOwnerAsWin->Destroy();
  CleanUp();

  return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::Close(JSContext* cx, jsval* argv, PRUint32 argc)
{
   nsresult result = NS_OK;
   nsCOMPtr<nsIScriptContext> callingContext;

   nsJSUtils::nsGetDynamicScriptContext(cx, getter_AddRefs(callingContext));
   if(callingContext)
      {
      nsCOMPtr<nsIScriptContext> winContext;
      result = GetContext(getter_AddRefs(winContext));
      if(NS_SUCCEEDED(result))
         {
         if(winContext == callingContext)
            result = callingContext->SetTerminationFunction(CloseWindow, 
                                 NS_STATIC_CAST(nsIScriptGlobalObject*, this));
         else
            result = Close();
         }
      }
   return result;
}

NS_IMETHODIMP 
GlobalWindowImpl::UpdateCommands(const nsString& anAction)
{
  if (mChromeEventHandler) {
    // Just jump out to the chrome event handler.
    nsCOMPtr<nsIContent> content = do_QueryInterface(mChromeEventHandler);
    if (content) {
      // Cross the chrome/content boundary and get the nearest enclosing
      // chrome window.
      nsCOMPtr<nsIDocument> doc;
      content->GetDocument(*getter_AddRefs(doc));
      nsCOMPtr<nsIScriptGlobalObject> global;
      doc->GetScriptGlobalObject(getter_AddRefs(global));
      nsCOMPtr<nsIDOMWindow> domWindow = do_QueryInterface(global);
      return domWindow->UpdateCommands(anAction);
    }
    else {
      // XXX Handle the embedding case.  The chrome handler could be told
      // to poke menu items/update commands etc.  This can be used by
      // embedders if we set it up right and lets them know all sorts of
      // interesting things about Ender text fields.
    }

  }
  else {
    // See if we contain a XUL document.
    nsCOMPtr<nsIDOMDocument> domDoc;
    GetDocument(getter_AddRefs(domDoc));
    nsCOMPtr<nsIDOMXULDocument> xulDoc = do_QueryInterface(domDoc);
    if (xulDoc) {
      // Retrieve the command dispatcher and call updateCommands on it.
      nsCOMPtr<nsIDOMXULCommandDispatcher> xulCommandDispatcher;
      xulDoc->GetCommandDispatcher(getter_AddRefs(xulCommandDispatcher));
      xulCommandDispatcher->UpdateCommands(anAction);
    }

    // Now call UpdateCommands on our parent window.
    nsCOMPtr<nsIDOMWindow> parent;
    GetParent(getter_AddRefs(parent));
    return parent->UpdateCommands(anAction);
  }

  return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::Escape(const nsString& aStr, nsString& aReturn)
{
   nsresult result;
   nsCOMPtr<nsIUnicodeEncoder> encoder;
   nsAutoString charset;

   nsCOMPtr<nsICharsetConverterManager> ccm(do_GetService(kCharsetConverterManagerCID));
   NS_ENSURE_TRUE(ccm, NS_ERROR_FAILURE);

   // Get the document character set
   charset = "UTF-8"; // default to utf-8
   if(mDocument)
      {
      nsCOMPtr<nsIDocument> doc(do_QueryInterface(mDocument));

      if(doc)
         result = doc->GetDocumentCharacterSet(charset);
      }
   if(NS_FAILED(result))
      return result;

   // Get an encoder for the character set
   result = ccm->GetUnicodeEncoder(&charset, getter_AddRefs(encoder));
   if(NS_FAILED(result))
      return result;

   result = encoder->Reset();
   if(NS_FAILED(result))
      return result;

   PRInt32 maxByteLen, srcLen;
   srcLen = aStr.Length();
   const PRUnichar* src = aStr.GetUnicode();

   // Get the expected length of result string
   result = encoder->GetMaxLength(src, srcLen, &maxByteLen);
   if(NS_FAILED(result))
      return result;

   // Allocate a buffer of the maximum length
   char* dest = (char*)nsAllocator::Alloc(maxByteLen+1);
   PRInt32 destLen2, destLen = maxByteLen;
   if(!dest)
      return NS_ERROR_OUT_OF_MEMORY;
  
   // Convert from unicode to the character set
   result = encoder->Convert(src, &srcLen, dest, &destLen);
   if(NS_FAILED(result)) 
      {
      nsAllocator::Free(dest);
      return result;
      }

   // Allow the encoder to finish the conversion
   destLen2 = maxByteLen - destLen;
   encoder->Finish(dest+destLen, &destLen2);
   dest[destLen+destLen2] = '\0';

   // Escape the string
   char* outBuf = nsEscape(dest, nsEscapeMask(url_XAlphas | url_XPAlphas | url_Path)); 
   aReturn.SetString(outBuf);

   nsAllocator::Free(outBuf);
   nsAllocator::Free(dest);

   return result;
}

NS_IMETHODIMP GlobalWindowImpl::Unescape(const nsString& aStr, nsString& aReturn)
{
   nsresult result;
   nsCOMPtr<nsIUnicodeDecoder> decoder;
   nsAutoString charset;

   nsCOMPtr<nsICharsetConverterManager> ccm(do_GetService(kCharsetConverterManagerCID));
   NS_ENSURE_TRUE(ccm, NS_ERROR_FAILURE);

   // Get the document character set
   charset = "UTF-8"; // default to utf-8
   if(mDocument)
      {
      nsCOMPtr<nsIDocument> doc(do_QueryInterface(mDocument));

      if(doc)
         result = doc->GetDocumentCharacterSet(charset);
      }
   if(NS_FAILED(result))
      return result;

   // Get an decoder for the character set
   result = ccm->GetUnicodeDecoder(&charset, getter_AddRefs(decoder));
   if(NS_FAILED(result))
      return result;

   result = decoder->Reset();
   if(NS_FAILED(result))
      return result;

   // Need to copy to do the two-byte to one-byte deflation
   char* inBuf = aStr.ToNewCString();
   if(!inBuf)
      return NS_ERROR_OUT_OF_MEMORY;

   // Unescape the string
   char* src = nsUnescape(inBuf);

   PRInt32 maxLength, srcLen;
   srcLen = nsCRT::strlen(src);

   // Get the expected length of the result string
   result = decoder->GetMaxLength(src, srcLen, &maxLength);
   if(NS_FAILED(result))
      {
      nsAllocator::Free(src);
      return result;
      }

   // Allocate a buffer of the maximum length
   PRUnichar* dest = (PRUnichar*)nsAllocator::Alloc(sizeof(PRUnichar)*maxLength);
   PRInt32 destLen = maxLength;
   if(!dest)
      {
      nsAllocator::Free(src);
      return NS_ERROR_OUT_OF_MEMORY;
      }

   // Convert from character set to unicode
   result = decoder->Convert(src, &srcLen, dest, &destLen);
   nsAllocator::Free(src);
   if(NS_FAILED(result))
      {
      nsAllocator::Free(dest);
      return result;
      }

   aReturn.SetString(dest, destLen);
   nsAllocator::Free(dest);

   return NS_OK;
}

//*****************************************************************************
// GlobalWindowImpl::nsIJSScriptObject
//*****************************************************************************   

PRBool GlobalWindowImpl::AddProperty(JSContext* aContext, JSObject* aObj, 
   jsval aID, jsval* aVp)
{
   if((JS_TypeOfValue(aContext, *aVp) == JSTYPE_FUNCTION) &&
      JSVAL_IS_STRING(aID))
      {
      nsString mPropName;
      nsAutoString mPrefix;
      mPropName.SetString(JS_GetStringChars(JS_ValueToString(aContext, aID)));
      if(mPropName.Length() > 2)
         mPrefix.SetString(mPropName.GetUnicode(), 2);
      if(mPrefix == "on")
         return CheckForEventListener(aContext, mPropName);
      }
   return PR_TRUE;
}

PRBool GlobalWindowImpl::DeleteProperty(JSContext* aContext, JSObject* aObj, 
   jsval aID, jsval* aVp)
{
   return PR_TRUE;
}

PRBool GlobalWindowImpl::GetProperty(JSContext* aContext, JSObject* aObj,
   jsval aID, jsval* aVp)
{
   if(JSVAL_IS_STRING(aID))
      {
      char* cString = JS_GetStringBytes(JS_ValueToString(aContext, aID));
      if(PL_strcmp("location", cString) == 0)
         {
         nsCOMPtr<nsIDOMLocation> location;
    
         if(NS_OK == GetLocation(getter_AddRefs(location)))
            {
            if(location)
               {
               nsCOMPtr<nsIScriptObjectOwner> owner(do_QueryInterface(location));
               if(owner)
                  {
                  JSObject *object = nsnull;
                  nsCOMPtr<nsIScriptContext> scriptCX;
                  nsJSUtils::nsGetDynamicScriptContext(aContext, getter_AddRefs(scriptCX));
                  if(scriptCX &&
                     (NS_OK == owner->GetScriptObject(scriptCX, (void**)&object)))
                     {
                     // set the return value
                     *aVp = OBJECT_TO_JSVAL(object);
                     }
                  }
               }
            else
               *aVp = JSVAL_NULL;
            }
         else 
            return PR_FALSE;
         }
      else if(PL_strcmp("title", cString) == 0)
         {
         if (mDocShell)
            {
            // See if we're a chrome shell.
            PRInt32 type;
            nsCOMPtr<nsIDocShellTreeItem> docShellAsItem(do_QueryInterface(mDocShell));
            docShellAsItem->GetItemType(&type);
            if(type == nsIDocShellTreeItem::typeChrome)
               {
               nsCOMPtr<nsIBaseWindow> docShellAsWin(do_QueryInterface(mDocShell));
               if(docShellAsWin)
                  {
                  nsXPIDLString title;
                  docShellAsWin->GetTitle(getter_Copies(title));

                  JSString* jsString = JS_NewUCStringCopyZ(aContext, (const jschar*)title);
                  if (!jsString)
                     return PR_FALSE;
              
                  *aVp = STRING_TO_JSVAL(jsString);
                  }
               }
            }
         }
      }
   return PR_TRUE;
}

PRBool GlobalWindowImpl::SetProperty(JSContext* aContext, JSObject* aObj, 
   jsval aID, jsval* aVp)
{
   PRBool result = PR_TRUE;
   if((JS_TypeOfValue(aContext, *aVp) == JSTYPE_FUNCTION) &&
      JSVAL_IS_STRING(aID))
      {
      nsAutoString propName;
      nsAutoString prefix;
      propName.SetString(JS_GetStringChars(JS_ValueToString(aContext, aID)));
      if(propName.Length() > 2)
         {
         prefix.SetString(propName.GetUnicode(), 2);
         if(prefix.EqualsIgnoreCase("on"))
            result = CheckForEventListener(aContext, propName);
         }
      }
   else if(JSVAL_IS_STRING(aID))
      {
      char* cString = JS_GetStringBytes(JS_ValueToString(aContext, aID));
    
      if(PL_strcmp("location", cString) == 0)
         {
         nsCOMPtr<nsIDOMLocation> location;
      
         if(NS_OK == GetLocation(getter_AddRefs(location)))
            {
            nsCOMPtr<nsIJSScriptObject> scriptObj = do_QueryInterface(location);
            JSString* str = JS_NewStringCopyZ(aContext, "href");
        
            if(scriptObj && str)
               result = scriptObj->SetProperty(aContext, aObj, STRING_TO_JSVAL(str), aVp);
            }
         else
            result = PR_FALSE;
         }
      else if(PL_strcmp("title", cString) == 0)
         {
         if(mDocShell)
            {
            // See if we're a chrome shell.
            PRInt32 type;
            nsCOMPtr<nsIDocShellTreeItem> docShellAsItem(do_QueryInterface(mDocShell));
            docShellAsItem->GetItemType(&type);
            if(type == nsIDocShellTreeItem::typeChrome)
               {
               nsCOMPtr<nsIBaseWindow> docShellAsWin(do_QueryInterface(mDocShell));
               if(docShellAsWin)
                  {
                  JSString *jsString = JS_ValueToString(aContext, *aVp);
                  if(!jsString)
                     {
                     result = PR_FALSE;
                     }
                  else
                     {
                     const PRUnichar* uniTitle = JS_GetStringChars(jsString);
                     docShellAsWin->SetTitle(uniTitle);
                     }
                  }
               }
            }
         }
      }

   return result;
}

PRBool GlobalWindowImpl::EnumerateProperty(JSContext* aContext, JSObject* aObj)
{
   return PR_TRUE;
}

PRBool GlobalWindowImpl::Resolve(JSContext* aContext, JSObject* aObj, jsval aID)
{
   if(JSVAL_IS_STRING(aID))
      {
      if(PL_strcmp("location", JS_GetStringBytes(JS_ValueToString(aContext, aID))) == 0)
         ::JS_DefineProperty(aContext, (JSObject *)mScriptObject, "location",
                          JSVAL_NULL, nsnull, nsnull, 0);
      else if(mDocShell)
         {
         nsCOMPtr<nsIDocShellTreeNode> docShellAsNode(do_QueryInterface(mDocShell));
         PRInt32 count;
         if(NS_SUCCEEDED(docShellAsNode->GetChildCount(&count)) && count)
            {
            nsCOMPtr<nsIDocShellTreeItem> child;
            nsAutoString name(JS_GetStringBytes(JS_ValueToString(aContext, aID)));
            if(NS_SUCCEEDED(docShellAsNode->FindChildWithName(name.GetUnicode(),
               PR_FALSE, nsnull, getter_AddRefs(child)))) 
               {
               if(child)
                  {
                  JSObject *childObj;
                  //We found a subframe of the right name.  The rest of this is to get its script object.
                  nsCOMPtr<nsIScriptGlobalObject> childGlobalObject(do_GetInterface(child));
                  if(childGlobalObject)
                     {
                     nsCOMPtr<nsIScriptObjectOwner> objOwner(do_QueryInterface(childGlobalObject));
                     if(objOwner) 
                        {
                        nsCOMPtr<nsIScriptContext> scriptContext;
               
                        childGlobalObject->GetContext(getter_AddRefs(scriptContext));
                        if(scriptContext)
                           objOwner->GetScriptObject(scriptContext, (void**)&childObj);
                        } 
                     }
                  //Okay, if we now have a childObj, we can define it and proceed.
                  if(childObj)
                     ::JS_DefineProperty(aContext, (JSObject *)mScriptObject, 
                                  JS_GetStringBytes(JS_ValueToString(aContext, aID)),
                                  OBJECT_TO_JSVAL(childObj), nsnull, nsnull, 0);
                  }
               }
            }
         }
      }

  return PR_TRUE;
}

PRBool GlobalWindowImpl::Convert(JSContext* aContext, JSObject* aObj, jsval aID)
{
   return PR_TRUE;
}

void GlobalWindowImpl::Finalize(JSContext* aContext, JSObject* aObj)
{
}

//*****************************************************************************
// GlobalWindowImpl::nsIDOMEventTarget
//*****************************************************************************   

NS_IMETHODIMP GlobalWindowImpl::AddEventListener(const nsString& aType, 
   nsIDOMEventListener* aListener, PRBool aUseCapture)
{
   nsCOMPtr<nsIEventListenerManager> manager;

   if(NS_OK == GetListenerManager(getter_AddRefs(manager)))
      {
      PRInt32 flags = aUseCapture ? NS_EVENT_FLAG_CAPTURE : NS_EVENT_FLAG_BUBBLE;

      manager->AddEventListenerByType(aListener, aType, flags);
      return NS_OK;
      }
   return NS_ERROR_FAILURE;
}

NS_IMETHODIMP GlobalWindowImpl::RemoveEventListener(const nsString& aType, 
   nsIDOMEventListener* aListener, PRBool aUseCapture)
{
   if(mListenerManager)
      {
      PRInt32 flags = aUseCapture ? NS_EVENT_FLAG_CAPTURE : NS_EVENT_FLAG_BUBBLE;

      mListenerManager->RemoveEventListenerByType(aListener, aType, flags);
      return NS_OK;
      }
   return NS_ERROR_FAILURE;
}

//*****************************************************************************
// GlobalWindowImpl::nsIDOMEventReceiver
//*****************************************************************************   

NS_IMETHODIMP GlobalWindowImpl::AddEventListenerByIID(nsIDOMEventListener *aListener,
   const nsIID& aIID)
{
   nsCOMPtr<nsIEventListenerManager> manager;

   if(NS_OK == GetListenerManager(getter_AddRefs(manager)))
      {
      manager->AddEventListenerByIID(aListener, aIID, NS_EVENT_FLAG_BUBBLE);
      return NS_OK;
      } 
   return NS_ERROR_FAILURE;
}

NS_IMETHODIMP GlobalWindowImpl::RemoveEventListenerByIID(nsIDOMEventListener *aListener, 
   const nsIID& aIID)
{
   if(mListenerManager)
      {
      mListenerManager->RemoveEventListenerByIID(aListener, aIID, 
         NS_EVENT_FLAG_BUBBLE);
      return NS_OK;
      }
   return NS_ERROR_FAILURE;
}

NS_IMETHODIMP GlobalWindowImpl::GetListenerManager(nsIEventListenerManager **aInstancePtrResult)
{
   if(mListenerManager)
      return CallQueryInterface(mListenerManager, aInstancePtrResult);
  
   //This is gonna get ugly.  Can't use NS_NewEventListenerManager because of a circular link problem.
   nsCOMPtr<nsIDOMEventReceiver> doc(do_QueryInterface(mDocument));

   if(doc)
      {
      if(NS_OK == doc->GetNewListenerManager(aInstancePtrResult))
         {
         mListenerManager = *aInstancePtrResult;
         return NS_OK;
         }
      }
   return NS_ERROR_FAILURE;
}

//XXX I need another way around the circular link problem.
NS_IMETHODIMP GlobalWindowImpl::GetNewListenerManager(nsIEventListenerManager **aInstancePtrResult)
{
   return NS_ERROR_FAILURE;
}

//*****************************************************************************
// GlobalWindowImpl::nsPIDOMWindow
//*****************************************************************************   

NS_IMETHODIMP GlobalWindowImpl::GetPrivateParent(nsPIDOMWindow** aParent)
{
   nsCOMPtr<nsIDOMWindow> parent;
   *aParent = nsnull; // Set to null so we can bail out later

   GetParent(getter_AddRefs(parent));

   if(NS_STATIC_CAST(nsIDOMWindow*, this) == parent.get())
      {
      nsCOMPtr<nsIContent> chromeElement(do_QueryInterface(mChromeEventHandler));
      if(!chromeElement)
         return NS_OK; // This is ok, just means a null parent.

      nsCOMPtr<nsIDocument> doc;
      chromeElement->GetDocument(*getter_AddRefs(doc));
      if(!doc)
         return NS_OK; // This is ok, just means a null parent.

      nsCOMPtr<nsIScriptGlobalObject> globalObject;
      doc->GetScriptGlobalObject(getter_AddRefs(globalObject));
      if(!globalObject)
         return NS_OK; // This is ok, just means a null parent.

      parent = do_QueryInterface(globalObject);
      }

   if(parent)
      CallQueryInterface(parent.get(), aParent);

   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::GetPrivateRoot(nsIDOMWindow** aParent)
{
   *aParent = nsnull; // Set to null so we can bail out later

   nsCOMPtr<nsIDOMWindow> parent;
   GetTop(getter_AddRefs(parent));

   nsCOMPtr<nsIScriptGlobalObject> parentTop = do_QueryInterface(parent);
   nsCOMPtr<nsIDocShell> docShell;
   parentTop->GetDocShell(getter_AddRefs(docShell));
   nsCOMPtr<nsIChromeEventHandler> chromeEventHandler;
   docShell->GetChromeEventHandler(getter_AddRefs(chromeEventHandler));

   nsCOMPtr<nsIContent> chromeElement(do_QueryInterface(mChromeEventHandler));
   if(chromeElement) {
     nsCOMPtr<nsIDocument> doc;
     chromeElement->GetDocument(*getter_AddRefs(doc));
     if (doc) {
       nsCOMPtr<nsIScriptGlobalObject> globalObject;
       doc->GetScriptGlobalObject(getter_AddRefs(globalObject));
      
       parent = do_QueryInterface(globalObject);
       parent->GetTop(aParent); // Addref done here.
       return NS_OK;
     }
   }

   if (parent) {
     *aParent = parent.get();
     NS_ADDREF(*aParent);
   }

   return NS_OK;
}


NS_IMETHODIMP GlobalWindowImpl::GetLocation(nsIDOMLocation** aLocation)
{
   if(!mLocation && mDocShell)
      {
      mLocation = new LocationImpl(mDocShell);
      NS_IF_ADDREF(mLocation);
      }

   *aLocation = mLocation;
   NS_IF_ADDREF(mLocation);

   return NS_OK;
}

// NS_IMETHODIMP GlobalWindowImpl::GetDocShell(nsIDocShell** aDocShell)
// Implemented by nsIScriptGlobalObject

NS_IMETHODIMP GlobalWindowImpl::Activate()
{
/*
   nsCOMPtr<nsIBaseWindow> treeOwnerAsWin;
   GetTreeOwner(getter_AddRefs(treeOwnerAsWin));
   if(treeOwnerAsWin)
      treeOwnerAsWin->SetVisibility(PR_TRUE);

   nsCOMPtr<nsIPresShell> presShell;
   mDocShell->GetPresShell(getter_AddRefs(presShell));
   NS_ENSURE_TRUE(presShell, NS_ERROR_FAILURE);

   nsCOMPtr<nsIViewManager> vm;
   presShell->GetViewManager(getter_AddRefs(vm));
   NS_ENSURE_TRUE(vm, NS_ERROR_FAILURE);

   nsIView* rootView;
   vm->GetRootView(rootView);
   NS_ENSURE_TRUE(rootView, NS_ERROR_FAILURE);
   
   nsCOMPtr<nsIWidget> widget;
   rootView->GetWidget(*getter_AddRefs(widget));
   NS_ENSURE_TRUE(widget, NS_ERROR_FAILURE);

   return widget->SetFocus();
   
 */
    nsCOMPtr<nsIBaseWindow> treeOwnerAsWin;
   GetTreeOwner(getter_AddRefs(treeOwnerAsWin));
   if(treeOwnerAsWin)
      treeOwnerAsWin->SetVisibility(PR_TRUE);

   nsCOMPtr<nsIPresShell> presShell;
   mDocShell->GetPresShell(getter_AddRefs(presShell));
   NS_ENSURE_TRUE(presShell, NS_ERROR_FAILURE);

   nsCOMPtr<nsIViewManager> vm;
   presShell->GetViewManager(getter_AddRefs(vm));
   NS_ENSURE_TRUE(vm, NS_ERROR_FAILURE);

   nsIView* rootView;
   vm->GetRootView(rootView);
   NS_ENSURE_TRUE(rootView, NS_ERROR_FAILURE);
   
   nsCOMPtr<nsIWidget> widget;
   rootView->GetWidget(*getter_AddRefs(widget));
   NS_ENSURE_TRUE(widget, NS_ERROR_FAILURE);

   nsEventStatus status;
   nsGUIEvent	guiEvent;

	guiEvent.eventStructType = NS_GUI_EVENT;
	guiEvent.point.x = 0;
	guiEvent.point.y = 0;
	guiEvent.time = PR_IntervalNow();
	guiEvent.nativeMsg = nsnull;
	guiEvent.message = NS_DEACTIVATE;
	guiEvent.widget = widget;

   vm->DispatchEvent(&guiEvent, &status);

   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::Deactivate()
{
   nsCOMPtr<nsIBaseWindow> treeOwnerAsWin;
   GetTreeOwner(getter_AddRefs(treeOwnerAsWin));
   if(treeOwnerAsWin)
      treeOwnerAsWin->SetVisibility(PR_TRUE);

   nsCOMPtr<nsIPresShell> presShell;
   mDocShell->GetPresShell(getter_AddRefs(presShell));
   NS_ENSURE_TRUE(presShell, NS_ERROR_FAILURE);

   nsCOMPtr<nsIViewManager> vm;
   presShell->GetViewManager(getter_AddRefs(vm));
   NS_ENSURE_TRUE(vm, NS_ERROR_FAILURE);

   nsIView* rootView;
   vm->GetRootView(rootView);
   NS_ENSURE_TRUE(rootView, NS_ERROR_FAILURE);
   
   nsCOMPtr<nsIWidget> widget;
   rootView->GetWidget(*getter_AddRefs(widget));
   NS_ENSURE_TRUE(widget, NS_ERROR_FAILURE);

   nsEventStatus status;
   nsGUIEvent	guiEvent;

	guiEvent.eventStructType = NS_GUI_EVENT;
	guiEvent.point.x = 0;
	guiEvent.point.y = 0;
	guiEvent.time = PR_IntervalNow();
	guiEvent.nativeMsg = nsnull;
	guiEvent.message = NS_DEACTIVATE;
	guiEvent.widget = widget;

   vm->DispatchEvent(&guiEvent, &status);

   return NS_OK;
}

//*****************************************************************************
// GlobalWindowImpl::nsIDOMAbstractView
//*****************************************************************************   

//NS_IMETHODIMP GlobalWindowImpl::GetDocument(nsIDOMDocument** aDocument)
// implemented by nsIDOMWindow

//*****************************************************************************
// GlobalWindowImpl: Window Control Functions
//*****************************************************************************   

NS_IMETHODIMP GlobalWindowImpl::OpenInternal(JSContext* cx, jsval* argv, 
   PRUint32 argc, PRBool aDialog, nsIDOMWindow** aReturn)
{
   PRUint32 chromeFlags;
   nsAutoString mAbsURL, name;
   JSString* str;
   char* options;
   *aReturn = nsnull;
   PRBool nameSpecified = PR_FALSE;
   PRBool loadURL = PR_TRUE;

   if(argc == 0)
      loadURL = PR_FALSE;
   else if(argc > 0)
      {
      JSString *mJSStrURL = JS_ValueToString(cx, argv[0]);
      NS_ENSURE_TRUE(mJSStrURL, NS_ERROR_FAILURE);

      nsAutoString mURL;
      mURL.SetString(JS_GetStringChars(mJSStrURL));
    
      if(mURL.Equals(""))
         loadURL = PR_FALSE;
      else 
         {
         if(mDocument)
            {
            // Build absolute URL relative to this document.
            nsCOMPtr<nsIURI> docURL;
            nsCOMPtr<nsIDocument> doc(do_QueryInterface(mDocument));
            if(doc)
               docURL = dont_AddRef(doc->GetDocumentURL());
    
            nsCOMPtr<nsIURI> baseUri(do_QueryInterface(docURL));
            NS_ENSURE_TRUE(baseUri, NS_ERROR_FAILURE);
    
            NS_ENSURE_SUCCESS(NS_MakeAbsoluteURI(mURL, baseUri, mAbsURL),
               NS_ERROR_FAILURE);
            } 
         else 
            {
            // No document.  Probably because this window's URL hasn't finished
            // loading.  All we can do is hope the URL we've been given is absolute.
            mAbsURL.SetString(JS_GetStringChars(mJSStrURL));
            nsCOMPtr<nsIURI> test;
            // Make URI; if mAbsURL is relative (or otherwise bogus) this will fail.
            NS_ENSURE_SUCCESS(NS_NewURI(getter_AddRefs(test), mAbsURL),
               NS_ERROR_FAILURE);
            }
         }
      }
  
   /* Sanity-check the optional window_name argument. */
   if(argc > 1)
      {
      JSString *mJSStrName = JS_ValueToString(cx, argv[1]);
      NS_ENSURE_TRUE(mJSStrName, NS_ERROR_FAILURE);

      name.SetString(JS_GetStringChars(mJSStrName));
      nameSpecified = PR_TRUE;

      NS_ENSURE_SUCCESS(CheckWindowName(cx, name), NS_ERROR_FAILURE);
      } 

   options = nsnull;
   if(argc > 2)
      {
      NS_ENSURE_TRUE((str = JS_ValueToString(cx, argv[2])), NS_ERROR_FAILURE);
      options = JS_GetStringBytes(str);
      }
   chromeFlags = CalculateChromeFlags(options, aDialog);

   nsCOMPtr<nsIDocShellTreeOwner> treeOwner;
   GetTreeOwner(getter_AddRefs(treeOwner));
   NS_ENSURE_TRUE(treeOwner, NS_ERROR_FAILURE);
   
   nsCOMPtr<nsIDocShellTreeItem> newDocShellItem;
   // Check for existing window of same name
   if(nameSpecified)
      treeOwner->FindItemWithName(name.GetUnicode(), nsnull, 
                                    getter_AddRefs(newDocShellItem));

   nsIEventQueue* modalEventQueue; // This has an odd ownership model
   nsCOMPtr<nsIEventQueueService> eventQService;

   PRBool windowIsNew = PR_FALSE;
   PRBool windowIsModal = PR_FALSE;

   if(!newDocShellItem)
      {
      windowIsNew = PR_TRUE;
      if(chromeFlags & nsIWebBrowserChrome::modal)
         {
         eventQService = do_GetService(kEventQueueServiceCID);
         if(eventQService && 
            NS_SUCCEEDED(eventQService->PushThreadEventQueue(
                                             &modalEventQueue)))
            windowIsModal = PR_TRUE;
         }
      treeOwner->GetNewWindow(chromeFlags, getter_AddRefs(newDocShellItem));
      NS_ENSURE_TRUE(newDocShellItem, NS_ERROR_FAILURE);
      }

   NS_ENSURE_SUCCESS(ReadyOpenedDocShellItem(newDocShellItem, aReturn),
      NS_ERROR_FAILURE);

   if(aDialog && argc > 3)
      AttachArguments(*aReturn, argv+3, argc-3);

   nsCOMPtr<nsIScriptSecurityManager> secMan;
   if(loadURL)
      {
      // Get security manager, check to see if URI is allowed.
      nsCOMPtr<nsIURI> newUrl;
      nsCOMPtr<nsIScriptContext> scriptCX;
      nsJSUtils::nsGetStaticScriptContext(cx, (JSObject*)mScriptObject, 
                                     getter_AddRefs(scriptCX));
      if(!scriptCX ||
         NS_FAILED(scriptCX->GetSecurityManager(getter_AddRefs(secMan))) ||
         NS_FAILED(NS_NewURI(getter_AddRefs(newUrl), mAbsURL)) ||
         NS_FAILED(secMan->CheckLoadURIFromScript(cx, newUrl))) 
         return NS_ERROR_FAILURE;
      }

   if(nameSpecified)
      newDocShellItem->SetName(name.GetUnicode());
   else 
      newDocShellItem->SetName(nsnull);

   nsCOMPtr<nsIWebShell> webShell(do_QueryInterface(newDocShellItem));
   if (loadURL) {
      nsCOMPtr<nsIPrincipal> principal;
      if (NS_FAILED(secMan->GetSubjectPrincipal(getter_AddRefs(principal))))
         return NS_ERROR_FAILURE;
      nsCOMPtr<nsICodebasePrincipal> codebase = do_QueryInterface(principal);
      if (codebase) {
         nsCOMPtr<nsIURI> codebaseURI;
         nsresult rv;
         if (NS_FAILED(rv = codebase->GetURI(getter_AddRefs(codebaseURI))))
            return rv;
         nsXPIDLCString spec;
         if (NS_FAILED(rv = codebaseURI->GetSpec(getter_Copies(spec))))
            return rv;
         nsAutoString referrer(spec);
         webShell->LoadURL(mAbsURL.GetUnicode(), nsnull, PR_TRUE, 
                           nsIChannel::LOAD_NORMAL, 0, nsnull, 
                           referrer.GetUnicode());
      } else {
         webShell->LoadURL(mAbsURL.GetUnicode());
      }
   }

   if(windowIsNew)
      SizeOpenedDocShellItem(newDocShellItem, options, chromeFlags);
   if(windowIsModal)
      {
      nsCOMPtr<nsIDocShellTreeOwner> newTreeOwner;
      newDocShellItem->GetTreeOwner(getter_AddRefs(newTreeOwner));
      
      if(newTreeOwner)
         newTreeOwner->ShowModal();

      eventQService->PopThreadEventQueue(modalEventQueue);
      }

   return NS_OK;
}

// attach the given array of JS values to the given window, as a property array
// named "arguments"
NS_IMETHODIMP GlobalWindowImpl::AttachArguments(nsIDOMWindow* aWindow, 
   jsval* argv, PRUint32 argc)
{
   if(argc == 0)
      return NS_OK;

   // copy the extra parameters into a JS Array and attach it
   nsCOMPtr<nsIScriptGlobalObject> scriptGlobal(do_QueryInterface(aWindow));
   if(!scriptGlobal)
      return NS_OK;

   nsCOMPtr<nsIScriptContext> scriptContext;
   scriptGlobal->GetContext(getter_AddRefs(scriptContext));
   if(!scriptContext)
      return NS_OK;
   
   JSContext *jsContext;
   jsContext = (JSContext *)scriptContext->GetNativeContext();
   nsCOMPtr<nsIScriptObjectOwner> owner(do_QueryInterface(aWindow));
   if(!owner)
      return NS_OK;
   
   JSObject *scriptObject;
   owner->GetScriptObject(scriptContext, (void **)&scriptObject);
   
   JSObject *args;
   args = JS_NewArrayObject(jsContext, argc, argv);
   if(!args)
      return NS_OK;
   
   jsval argsVal = OBJECT_TO_JSVAL(args);
   // JS_DefineProperty(jsContext, scriptObject, "arguments",
   // argsVal, NULL, NULL, JSPROP_PERMANENT);
   JS_SetProperty(jsContext, scriptObject, "arguments", &argsVal);

   return NS_OK;
}

/**
 * Calculate the chrome bitmask from a string list of features.
 * @param aFeatures a string containing a list of named chrome features
 * @param aDialog affects the assumptions made about unnamed features
 * @return the chrome bitmask
 */
PRUint32 GlobalWindowImpl::CalculateChromeFlags(char* aFeatures, PRBool aDialog)
{
   if(!aFeatures)
      {
      if(aDialog)
         return   nsIWebBrowserChrome::allChrome | 
                  nsIWebBrowserChrome::openAsDialog | 
                  nsIWebBrowserChrome::openAsChrome;
      else
         return nsIWebBrowserChrome::allChrome;
      }

   /* This function has become complicated since browser windows and
      dialogs diverged. The difference is, browser windows assume all
      chrome not explicitly mentioned is off, if the features string
      is not null. Exceptions are some OS border chrome new with Mozilla.
      Dialogs interpret a (mostly) empty features string to mean
      "OS's choice," and also support an "all" flag explicitly disallowed
      in the standards-compliant window.(normal)open. */

   PRUint32  chromeFlags = 0;
   PRBool presenceFlag = PR_FALSE;


   chromeFlags = nsIWebBrowserChrome::windowBordersOn;
   if(aDialog && WinHasOption(aFeatures, "all", &presenceFlag))
      chromeFlags = nsIWebBrowserChrome::allChrome;

   /* Next, allow explicitly named options to override the initial settings */

   chromeFlags |= WinHasOption(aFeatures, "titlebar", &presenceFlag) ? 
                  nsIWebBrowserChrome::titlebarOn : 0;
   chromeFlags |= WinHasOption(aFeatures, "close", &presenceFlag) ? 
                  nsIWebBrowserChrome::windowCloseOn : 0;
   chromeFlags |= WinHasOption(aFeatures, "toolbar", &presenceFlag) ? 
                  nsIWebBrowserChrome::toolBarOn : 0;
   chromeFlags |= WinHasOption(aFeatures, "location", &presenceFlag) ? 
                  nsIWebBrowserChrome::locationBarOn : 0;
   chromeFlags |= (WinHasOption(aFeatures, "directories", &presenceFlag) || 
                  WinHasOption(aFeatures, "personalbar", &presenceFlag)) ?
                  nsIWebBrowserChrome::personalToolBarOn : 0;
   chromeFlags |= WinHasOption(aFeatures, "status", &presenceFlag) ?
                  nsIWebBrowserChrome::statusBarOn : 0;
   chromeFlags |= WinHasOption(aFeatures, "menubar", &presenceFlag) ? 
                  nsIWebBrowserChrome::menuBarOn : 0;
   chromeFlags |= WinHasOption(aFeatures, "scrollbars", &presenceFlag) ? 
                  nsIWebBrowserChrome::scrollbarsOn : 0;
   chromeFlags |= WinHasOption(aFeatures, "resizable", &presenceFlag) ?
                  nsIWebBrowserChrome::windowResizeOn : 0;

   /* OK.
      Normal browser windows, in spite of a stated pattern of turning off
      all chrome not mentioned explicitly, will want the new OS chrome (window
      borders, titlebars, closebox) on, unless explicitly turned off.
      Dialogs, on the other hand, take the absence of any explicit settings
      to mean "OS' choice." */

   // default titlebar and closebox to "on," if not mentioned at all
   if(!PL_strcasestr(aFeatures, "titlebar"))
      chromeFlags |= nsIWebBrowserChrome::titlebarOn;
   if(!PL_strcasestr(aFeatures, "close"))
      chromeFlags |= nsIWebBrowserChrome::windowCloseOn;

   if(aDialog && !presenceFlag)
      chromeFlags = nsIWebBrowserChrome::defaultChrome;

   /* Finally, once all the above normal chrome has been divined, deal
      with the features that are more operating hints than appearance
      instructions. (Note modality implies dependence.) */

   chromeFlags |= WinHasOption(aFeatures, "chrome", nsnull) ? 
      nsIWebBrowserChrome::openAsChrome : 0;
   chromeFlags |= WinHasOption(aFeatures, "dependent", nsnull) ? 
      nsIWebBrowserChrome::dependent : 0;
   chromeFlags |= WinHasOption(aFeatures, "modal", nsnull) ? 
      (nsIWebBrowserChrome::modal | nsIWebBrowserChrome::dependent) : 0;
   chromeFlags |= WinHasOption(aFeatures, "dialog", nsnull) ? 
      nsIWebBrowserChrome::openAsDialog : 0;

   /* and dialogs need to have the last word. assume dialogs are dialogs,
      and opened as chrome, unless explicitly told otherwise. */
   if(aDialog)
      {
      if(!PL_strcasestr(aFeatures, "dialog"))
         chromeFlags |= nsIWebBrowserChrome::openAsDialog;
      if(!PL_strcasestr(aFeatures, "chrome"))
         chromeFlags |= nsIWebBrowserChrome::openAsChrome;
      }

   /*z-ordering, history, dependent
   chromeFlags->topmost         = WinHasOption(aFeatures, "alwaysRaised");
   chromeFlags->bottommost      = WinHasOption(aFeatures, "alwaysLowered");
   chromeFlags->z_lock          = WinHasOption(aFeatures, "z-lock");
   chromeFlags->is_modal        = WinHasOption(aFeatures, "modal");
   chromeFlags->hide_title_bar  = !(WinHasOption(aFeatures, "titlebar"));
   chromeFlags->dependent       = WinHasOption(aFeatures, "dependent");
   chromeFlags->copy_history    = FALSE;
   */

   /* Allow disabling of commands only if there is no menubar */
   /*if(!chromeFlags & NS_CHROME_MENU_BAR_ON)
      {
      chromeFlags->disable_commands = !WinHasOption(aFeatures, "hotkeys");
      if(XP_STRCASESTR(aFeatures,"hotkeys")==NULL)
         chromeFlags->disable_commands = FALSE;
      }
   */

   /* XXX Add security check on z-ordering, modal, hide title, disable hotkeys */

   /* XXX Add security check for sizing and positioning.  
      * See mozilla/lib/libmocha/lm_win.c for current constraints */

   return chromeFlags;
}

NS_IMETHODIMP GlobalWindowImpl::SizeOpenedDocShellItem(nsIDocShellTreeItem *aDocShellItem,
   char *aFeatures, PRUint32 aChromeFlags)
{
   NS_ENSURE_ARG(aDocShellItem);

   // Size the chrome if we are being opened as chrome
   PRBool sizeChrome = (aChromeFlags & nsIWebBrowserChrome::openAsChrome) != 0;

   // Use the current window's sizes as our default
   PRInt32 chromeX = 0, chromeY = 0, chromeCX = 0, chromeCY = 0;
   PRInt32 contentCX = 0, contentCY = 0;

   nsCOMPtr<nsIBaseWindow> currentTreeOwnerAsWin;
   GetTreeOwner(getter_AddRefs(currentTreeOwnerAsWin));
   NS_ENSURE_TRUE(currentTreeOwnerAsWin, NS_ERROR_FAILURE);

   currentTreeOwnerAsWin->GetPositionAndSize(&chromeX, &chromeY, &chromeCX, 
      &chromeCY);

   // if we are content, we may need the content sizes
   if(!sizeChrome)
      {
      nsCOMPtr<nsIBaseWindow> currentDocShellAsWin(do_QueryInterface(mDocShell));
      currentDocShellAsWin->GetSize(&contentCX, &contentCY);
      }

   PRBool present = PR_FALSE;
   PRInt32 temp;

   if((temp = WinHasOption(aFeatures, "left", &present)) || present)
      chromeX = temp;
   else if((temp = WinHasOption(aFeatures, "screenX", &present)) || present)
      chromeX = temp;

   present = PR_FALSE;

   if((temp = WinHasOption(aFeatures, "top", &present)) || present)
      chromeY = temp;
   else if((temp = WinHasOption(aFeatures, "screenY", &present)) || present)
      chromeY = temp;

   present = PR_FALSE;

   PRBool sizeSpecified = PR_FALSE;

   if((temp = WinHasOption(aFeatures, "width", &present)) || present)
      {
      chromeCX = temp;
      sizeChrome = PR_TRUE;
      sizeSpecified = PR_TRUE;
      }
   else if((temp = WinHasOption(aFeatures, "outerWidth", &present)) || present)
      {
      chromeCX = temp;
      sizeChrome = PR_TRUE;
      sizeSpecified = PR_TRUE;
      }

   present = PR_FALSE;

   if((temp = WinHasOption(aFeatures, "height", &present)) || present)
      {
      chromeCY = temp;
      sizeChrome = PR_TRUE;
      sizeSpecified = PR_TRUE;
      }
   else if((temp = WinHasOption(aFeatures, "outerHeight", &present)) || present)
      {
      chromeCY = temp;
      sizeChrome = PR_TRUE;
      sizeSpecified = PR_TRUE;
      }

   // We haven't switched to chrome sizing so we need to get the content area
   if(!sizeChrome)
      {
      if((temp = WinHasOption(aFeatures, "innerWidth", &present)) || present)
         {
         contentCX = temp;
         sizeSpecified = PR_TRUE;
         }
      if((temp = WinHasOption(aFeatures, "innerHeight", &present)) || present)
         {
         contentCY = temp;
         sizeSpecified = PR_TRUE;
         }
      }

   nsCOMPtr<nsIDocShellTreeOwner> treeOwner;
   aDocShellItem->GetTreeOwner(getter_AddRefs(treeOwner));
   nsCOMPtr<nsIBaseWindow> treeOwnerAsWin(do_QueryInterface(treeOwner));
   NS_ENSURE_TRUE(treeOwnerAsWin, NS_ERROR_FAILURE);

   if(sizeChrome)
      {
      if(sizeSpecified)
         treeOwnerAsWin->SetPositionAndSize(chromeX, chromeY, chromeCX, 
            chromeCY, PR_FALSE);
      else
         treeOwnerAsWin->SetPosition(chromeX, chromeY);
      }
   else
      {
      treeOwnerAsWin->SetPosition(chromeX, chromeY);
      treeOwner->SizeShellTo(aDocShellItem, contentCX, contentCY);
      }
   treeOwnerAsWin->SetVisibility(PR_TRUE);

   return NS_OK;
}

// return the nsIDOMWindow corresponding to the given nsIWebShell
// note this forces the creation of a script context, if one has not already been created
// note it also sets the window's opener to this -- because it's just convenient, that's all
NS_IMETHODIMP GlobalWindowImpl::ReadyOpenedDocShellItem(nsIDocShellTreeItem *aDocShellItem,
   nsIDOMWindow **aDOMWindow)
{
  nsresult              res;

  *aDOMWindow = nsnull;
  nsCOMPtr<nsIScriptGlobalObject> globalObject(do_GetInterface(aDocShellItem));
  NS_ENSURE_TRUE(globalObject, NS_ERROR_FAILURE);
  res = CallQueryInterface(globalObject.get(), aDOMWindow);
  globalObject->SetOpenerWindow(this); // damnit
  return res;
}

NS_IMETHODIMP GlobalWindowImpl::CheckWindowName(JSContext* cx, nsString& aName)
{
   PRInt32 strIndex;
   PRUnichar mChar;

   for(strIndex = 0; strIndex < aName.Length(); strIndex++)
      {
      mChar = aName.CharAt(strIndex);
      if(!nsString::IsAlpha(mChar) && !nsString::IsDigit(mChar) && 
         mChar != '_')
         {
         char* cp = aName.ToNewCString();
         JS_ReportError(cx, 
            "illegal character '%c' ('\\%o') in window name %s", mChar, mChar,
            cp);
         nsCRT::free(cp);
         return NS_ERROR_FAILURE;
         }
      }
   return NS_OK;
}

PRInt32 GlobalWindowImpl::WinHasOption(char *options, char *name, PRBool* aPresenceFlag)
{
   if(!options)
      return 0;
   char *comma, *equal;
   PRInt32 found = 0;

   while(PR_TRUE)
      {
      comma = strchr(options, ',');
      if(comma)
         *comma = '\0';
      equal = strchr(options, '=');
      if(equal)
         *equal = '\0';
      if(nsCRT::strcasecmp(options, name) == 0)
         {
         if(aPresenceFlag)
            *aPresenceFlag = PR_TRUE;
         if(!equal || (nsCRT::strcasecmp(equal + 1, "yes") == 0))
            found = 1;
         else
            found = atoi(equal + 1);
         }
      if(equal)
         *equal = '=';
      if(comma)
         *comma = ',';
      if(found || !comma)
         break;
      options = comma + 1;
      }
   return found;
}

void GlobalWindowImpl::CloseWindow(nsISupports* aWindow)
{
   nsCOMPtr<nsIDOMWindow> win(do_QueryInterface(aWindow));

   win->Close();
}

//*****************************************************************************
// GlobalWindowImpl: Timeout Functions
//*****************************************************************************   

static const char *kSetIntervalStr = "setInterval";
static const char *kSetTimeoutStr = "setTimeout";

NS_IMETHODIMP GlobalWindowImpl::SetTimeoutOrInterval(JSContext* cx, jsval* argv, 
   PRUint32 argc, PRInt32* aReturn, PRBool aIsInterval)
{
   JSString *expr = nsnull;
   JSObject *funobj = nsnull;
   nsTimeoutImpl *timeout, **insertion_point;
   jsdouble interval;
   PRInt64 now, delta;

   if(argc < 2)
      {
      JS_ReportError(cx, "Function %s requires at least 2 parameters",
                   aIsInterval ? kSetIntervalStr : kSetTimeoutStr);
      return NS_ERROR_FAILURE;
      }

   if(!JS_ValueToNumber(cx, argv[1], &interval))
      {
      JS_ReportError(cx,
                   "Second argument to %s must be a millisecond interval",
                   aIsInterval ? kSetIntervalStr : kSetTimeoutStr);
      return NS_ERROR_ILLEGAL_VALUE;
      }

   switch(JS_TypeOfValue(cx, argv[0]))
      {
      case JSTYPE_FUNCTION:
         funobj = JSVAL_TO_OBJECT(argv[0]);
         break;

      case JSTYPE_STRING:
      case JSTYPE_OBJECT:
         if(!(expr = JS_ValueToString(cx, argv[0])))
            return NS_ERROR_FAILURE;
         if(!expr)
            return NS_ERROR_OUT_OF_MEMORY;
         argv[0] = STRING_TO_JSVAL(expr);
         break;

      default:
         JS_ReportError(cx, "useless %s call (missing quotes around argument?)",
                     aIsInterval ? kSetIntervalStr : kSetTimeoutStr);
         return NS_ERROR_FAILURE;
      }

   timeout = PR_NEWZAP(nsTimeoutImpl);
   if(!timeout)
      return NS_ERROR_OUT_OF_MEMORY;

   // Initial ref_count to indicate that this timeout struct will
   // be held as the closure of a timer.
   timeout->ref_count = 1;
   if(aIsInterval)
      timeout->interval = (PRInt32)interval;
   if(expr)
      {
      if(!JS_AddNamedRoot(cx, &timeout->expr, "timeout.expr"))
         {
         PR_DELETE(timeout);
         return NS_ERROR_OUT_OF_MEMORY;
         }
      timeout->expr = expr;
      }
   else if(funobj)
      {
      int i;

      /* Leave an extra slot for a secret final argument that
         indicates to the called function how "late" the timeout is. */
      timeout->argv = (jsval *)PR_MALLOC((argc - 1) * sizeof(jsval));
      if(!timeout->argv)
         {
         DropTimeout(timeout);
         return NS_ERROR_OUT_OF_MEMORY;
         }

      if(!JS_AddNamedRoot(cx, &timeout->funobj, "timeout.funobj"))
         {
         DropTimeout(timeout);
         return NS_ERROR_FAILURE;
         }
      timeout->funobj = funobj;
          
      timeout->argc = 0;
      for(i = 2; (PRUint32)i < argc; i++)
         {
         timeout->argv[i - 2] = argv[i];
         if(!JS_AddNamedRoot(cx, &timeout->argv[i - 2], "timeout.argv[i]"))
            {
            DropTimeout(timeout);
            return NS_ERROR_FAILURE;
            }
         timeout->argc++;
         }
      }

   const char* filename;
   if(nsJSUtils::nsGetCallingLocation(cx, &filename, &timeout->lineno))
      {
      timeout->filename = PL_strdup(filename);
      if(!timeout->filename)
         {
         DropTimeout(timeout);
         return NS_ERROR_OUT_OF_MEMORY;
         }
      }

   timeout->version = JS_VersionToString(JS_GetVersion(cx));

   // Get principal of currently executing code, save for execution of timeout
   nsresult rv;
   nsCOMPtr<nsIScriptSecurityManager> 
      securityManager(do_GetService(NS_SCRIPTSECURITYMANAGER_PROGID, &rv));  
   if(NS_FAILED(rv))
      return NS_ERROR_FAILURE;
   if(NS_FAILED(securityManager->GetSubjectPrincipal(&timeout->principal)))
      return NS_ERROR_FAILURE;

   LL_I2L(now, PR_IntervalNow());
   LL_D2L(delta, PR_MillisecondsToInterval((PRUint32)interval));
   LL_ADD(timeout->when, now, delta);
   nsresult err = NS_NewTimer(&timeout->timer);
   if(NS_OK != err)
      {
      DropTimeout(timeout);
      return err;
      } 
  
   err = timeout->timer->Init(nsGlobalWindow_RunTimeout, timeout, 
                             (PRInt32)interval, NS_PRIORITY_LOWEST);
   if(NS_OK != err)
      {
      DropTimeout(timeout);
      return err;
      } 
   timeout->window = this;
   NS_ADDREF(this);
   insertion_point = (mTimeoutInsertionPoint == NULL)
                    ? &mTimeouts
                    : mTimeoutInsertionPoint;

   InsertTimeoutIntoList(insertion_point, timeout);
   timeout->public_id = ++mTimeoutPublicIdCounter;
   *aReturn = timeout->public_id;
  
   return NS_OK;
}

PRBool GlobalWindowImpl::RunTimeout(nsTimeoutImpl *aTimeout)
{
   nsTimeoutImpl *next, *timeout;
   nsTimeoutImpl *last_expired_timeout;
   nsTimeoutImpl dummy_timeout;
   JSContext *cx;
   PRInt64 now;
   nsITimer *timer;
   nsresult rv;

   /* Make sure that the window or the script context don't go away as 
      a result of running timeouts */
   GlobalWindowImpl* temp = this;
   NS_ADDREF(temp);
   nsIScriptContext* tempContext = mContext;
   NS_ADDREF(tempContext);

   timer = aTimeout->timer;
   cx = (JSContext *)mContext->GetNativeContext();

   /* A native timer has gone off.  See which of our timeouts need
      servicing */
   LL_I2L(now, PR_IntervalNow());

   /* The timeout list is kept in deadline order.  Discover the
      latest timeout whose deadline has expired. On some platforms,
      native timeout events fire "early", so we need to test the
      timer as well as the deadline. */
   last_expired_timeout = nsnull;
   for(timeout = mTimeouts; timeout; timeout = timeout->next)
      {
      if((timeout == aTimeout) || !LL_CMP(timeout->when, >, now))
         last_expired_timeout = timeout;
      }

   /* Maybe the timeout that the event was fired for has been deleted
      and there are no others timeouts with deadlines that make them
      eligible for execution yet.  Go away. */
   if(!last_expired_timeout)
      {
      NS_RELEASE(temp);
      NS_RELEASE(tempContext);
      return PR_TRUE;
      }

   /* Insert a dummy timeout into the list of timeouts between the portion
      of the list that we are about to process now and those timeouts that
      will be processed in a future call to win_run_timeout().  This dummy
      timeout serves as the head of the list for any timeouts inserted as
      a result of running a timeout. */
   dummy_timeout.timer = NULL;
   dummy_timeout.public_id = 0;
   dummy_timeout.next = last_expired_timeout->next;
   last_expired_timeout->next = &dummy_timeout;

   /* Don't let ClearWindowTimeouts throw away our stack-allocated
      dummy timeout. */
   dummy_timeout.ref_count = 2;
   
   mTimeoutInsertionPoint = &dummy_timeout.next;
   
   for(timeout = mTimeouts; timeout != &dummy_timeout; timeout = next)
      {
      next = timeout->next;
      /* Hold the timeout in case expr or funobj releases its doc. */
      HoldTimeout(timeout);
      mRunningTimeout = timeout;

      if(timeout->expr)
         {
         /* Evaluate the timeout expression. */
         nsAutoString script = JS_GetStringChars(timeout->expr);
         nsAutoString blank = "";
         PRBool isUndefined;
         rv = mContext->EvaluateString(script,
                                     mScriptObject,
                                     timeout->principal,
                                     timeout->filename,
                                     timeout->lineno,
                                     timeout->version,
                                     blank,
                                     &isUndefined);
         } 
      else 
         {
         PRInt64 lateness64;
         PRInt32 lateness;

         /* Add "secret" final argument that indicates timeout
            lateness in milliseconds */
         LL_SUB(lateness64, now, timeout->when);
         LL_L2I(lateness, lateness64);
         lateness = PR_IntervalToMilliseconds(lateness);
         timeout->argv[timeout->argc] = INT_TO_JSVAL((jsint)lateness);
         PRBool aBoolResult;
         rv = mContext->CallEventHandler(mScriptObject, timeout->funobj,
                                       timeout->argc + 1, timeout->argv,
                                       &aBoolResult);
         }
      if(NS_FAILED(rv))
         {
         NS_RELEASE(temp);
         NS_RELEASE(tempContext);
         return PR_TRUE;
         }

      mRunningTimeout = nsnull;
      /* If the temporary reference is the only one that is keeping
         the timeout around, the document was released and we should
         restart this function. */
      if(timeout->ref_count == 1)
         {
         DropTimeout(timeout, tempContext);
         NS_RELEASE(temp);
         NS_RELEASE(tempContext);
         return PR_FALSE;
         }
      DropTimeout(timeout, tempContext);

      /* If we have a regular interval timer, we re-fire the
       *  timeout, accounting for clock drift.
       */
      if(timeout->interval)
         {
         /* Compute time to next timeout for interval timer. */
         PRInt32 delay32;
         PRInt64 interval, delay;
         LL_I2L(interval, PR_MillisecondsToInterval(timeout->interval));
         LL_ADD(timeout->when, timeout->when, interval);
         LL_I2L(now, PR_IntervalNow());
         LL_SUB(delay, timeout->when, now);
         LL_L2I(delay32, delay);

         /* If the next interval timeout is already supposed to
          *  have happened then run the timeout immediately.
          */
         if(delay32 < 0)
            delay32 = 0;
         delay32 = PR_IntervalToMilliseconds(delay32);

         NS_IF_RELEASE(timeout->timer);

         /* Reschedule timeout.  Account for possible error return in
            code below that checks for zero toid. */
         nsresult err = NS_NewTimer(&timeout->timer);
         if(NS_OK != err)
            {
            NS_RELEASE(temp);
            NS_RELEASE(tempContext);
            return PR_TRUE;
            } 
       
         err = timeout->timer->Init(nsGlobalWindow_RunTimeout, timeout, 
                                  delay32, NS_PRIORITY_LOWEST);
         if(NS_OK != err)
            {
            NS_RELEASE(temp);
            NS_RELEASE(tempContext);
            return PR_TRUE;
            } 
         // Increment ref_count to indicate that this timer is holding
         // on to the timeout struct.
         HoldTimeout(timeout);
         }

      /* Running a timeout can cause another timeout to be deleted,
         so we need to reset the pointer to the following timeout. */
      next = timeout->next;
      mTimeouts = next;
      // Drop timeout struct since it's out of the list
      DropTimeout(timeout, tempContext);

      /* Free the timeout if this is not a repeating interval
       *  timeout (or if it was an interval timeout, but we were
       *  unsuccessful at rescheduling it.)
       */
      if(timeout->interval && timeout->timer)
         {
         /* Reschedule an interval timeout */
         /* Insert interval timeout onto list sorted in deadline order. */
         InsertTimeoutIntoList(mTimeoutInsertionPoint, timeout);
         }
      }
   /* Take the dummy timeout off the head of the list */
   mTimeouts = dummy_timeout.next;
   mTimeoutInsertionPoint = nsnull;

   /* Get rid of our temporary reference to ourselves and the 
      script context */
   NS_RELEASE(temp);
   NS_RELEASE(tempContext);
   return PR_TRUE;
}

void GlobalWindowImpl::DropTimeout(nsTimeoutImpl *aTimeout,
   nsIScriptContext* aContext)
{
   JSContext *cx;
  
   if(--aTimeout->ref_count > 0)
      return;
  
   if(!aContext)
      aContext = mContext;
   if(aContext)
      {
      cx = (JSContext *) aContext->GetNativeContext();
 
      if(aTimeout->expr)
         JS_RemoveRoot(cx, &aTimeout->expr);
      else if(aTimeout->funobj)
         {
         JS_RemoveRoot(cx, &aTimeout->funobj);
         if(aTimeout->argv)
            {
            int i;
            for (i = 0; i < aTimeout->argc; i++)
               JS_RemoveRoot(cx, &aTimeout->argv[i]);
            PR_FREEIF(aTimeout->argv);
            }
         }
      }
   NS_IF_RELEASE(aTimeout->timer);
   PR_FREEIF(aTimeout->filename);
   NS_IF_RELEASE(aTimeout->window);
   NS_IF_RELEASE(aTimeout->principal);
   PR_DELETE(aTimeout);
}

void GlobalWindowImpl::HoldTimeout(nsTimeoutImpl *aTimeout)
{
   aTimeout->ref_count++;
}

NS_IMETHODIMP GlobalWindowImpl::ClearTimeoutOrInterval(PRInt32 aTimerID)
{
   PRUint32 public_id;
   nsTimeoutImpl **top, *timeout;

   public_id = (PRUint32)aTimerID;
   if(!public_id)    /* id of zero is reserved for internal use */
      return NS_ERROR_FAILURE;
   for(top = &mTimeouts; (timeout = *top) != NULL; top = &timeout->next)
      {
      if(timeout->public_id == public_id)
         {
         if(mRunningTimeout == timeout)
            {
            /* We're running from inside the timeout.  Mark this
               timeout for deferred deletion by the code in
               win_run_timeout() */
            timeout->interval = 0;
            } 
         else 
            {
            /* Delete the timeout from the pending timeout list */
            *top = timeout->next;
            if(timeout->timer)
               {
               timeout->timer->Cancel();
               NS_RELEASE(timeout->timer);
               DropTimeout(timeout);
               }
            DropTimeout(timeout);
            }
         break;
         }
      }
   return NS_OK;
}

void GlobalWindowImpl::ClearAllTimeouts()
{
   nsTimeoutImpl *timeout, *next;

   for(timeout = mTimeouts; timeout; timeout = next)
      {
      /* If RunTimeout() is higher up on the stack for this
         window, e.g. as a result of document.write from a timeout,
         then we need to reset the list insertion point for
         newly-created timeouts in case the user adds a timeout,
         before we pop the stack back to RunTimeout. */
      if(mRunningTimeout == timeout)
         mTimeoutInsertionPoint = nsnull;
        
      next = timeout->next;
      if(timeout->timer)
         {
         timeout->timer->Cancel();
         NS_RELEASE(timeout->timer);
         // Drop the count since the timer isn't going to hold on
         // anymore.
         DropTimeout(timeout);
         }
      // Drop the count since we're removing it from the list.
      DropTimeout(timeout);
      }
   mTimeouts = NULL;
}

void GlobalWindowImpl::InsertTimeoutIntoList(nsTimeoutImpl **aList, 
                                        nsTimeoutImpl *aTimeout)
{
   nsTimeoutImpl *to;
  
   while((to = *aList) != nsnull)
      {
      if(LL_CMP(to->when, >, aTimeout->when))
         break;
      aList = &to->next;
      }
   aTimeout->next = to;
   *aList = aTimeout;
   // Increment the ref_count since we're in the list
   HoldTimeout(aTimeout);
}

void nsGlobalWindow_RunTimeout(nsITimer *aTimer, void *aClosure)
{
   nsTimeoutImpl *timeout = (nsTimeoutImpl *)aClosure;

   if(timeout->window->RunTimeout(timeout))
      {
      // Drop the ref_count since the timer won't be holding on to the
      // timeout struct anymore
      timeout->window->DropTimeout(timeout);
      }
}

//*****************************************************************************
// GlobalWindowImpl: Helper Functions
//*****************************************************************************   

NS_IMETHODIMP GlobalWindowImpl::GetTreeOwner(nsIDocShellTreeOwner** aTreeOwner)
{
   nsCOMPtr<nsIDocShellTreeItem> docShellAsItem(do_QueryInterface(mDocShell));
   NS_ENSURE_TRUE(docShellAsItem, NS_ERROR_FAILURE);

   return docShellAsItem->GetTreeOwner(aTreeOwner);
}

NS_IMETHODIMP GlobalWindowImpl::GetTreeOwner(nsIBaseWindow** aTreeOwner)
{
   nsCOMPtr<nsIDocShellTreeItem> docShellAsItem(do_QueryInterface(mDocShell));
   NS_ENSURE_TRUE(docShellAsItem, NS_ERROR_FAILURE);

   nsCOMPtr<nsIDocShellTreeOwner> treeOwner;
   docShellAsItem->GetTreeOwner(getter_AddRefs(treeOwner));
   if(!treeOwner)
      {
      *aTreeOwner = nsnull;
      return NS_OK;
      }

   return CallQueryInterface(treeOwner, aTreeOwner);
}

NS_IMETHODIMP GlobalWindowImpl::GetWebBrowserChrome(nsIWebBrowserChrome** 
   aBrowserChrome)
{
   nsCOMPtr<nsIDocShellTreeOwner> treeOwner;
   GetTreeOwner(getter_AddRefs(treeOwner));

   nsCOMPtr<nsIWebBrowserChrome> browserChrome(do_GetInterface(treeOwner));
   *aBrowserChrome = browserChrome;
   NS_IF_ADDREF(*aBrowserChrome);
   return NS_OK;
}

NS_IMETHODIMP GlobalWindowImpl::GetScrollInfo(nsIScrollableView** aScrollableView,
   float* aP2T, float* aT2P)
{
   nsCOMPtr<nsIPresContext> presContext;
   mDocShell->GetPresContext(getter_AddRefs(presContext));
   if(presContext)
      {
      presContext->GetPixelsToTwips(aP2T);
      presContext->GetTwipsToPixels(aT2P);

      nsCOMPtr<nsIPresShell> presShell;
      presContext->GetShell(getter_AddRefs(presShell));
      if(presShell)
         {
         nsCOMPtr<nsIViewManager> vm;
         presShell->GetViewManager(getter_AddRefs(vm));
         if(vm)
            return vm->GetRootScrollableView(aScrollableView);
         }
      }
   return NS_OK;
}

PRBool GlobalWindowImpl::CheckForEventListener(JSContext* aContext, nsString& aPropName)
{
   nsCOMPtr<nsIEventListenerManager> manager;
   nsCOMPtr<nsIAtom> atom(getter_AddRefs(NS_NewAtom(aPropName)));
  
   // XXX Comparisons should really be atom based

   if(aPropName == "onmousedown" || aPropName == "onmouseup" ||
      aPropName ==  "onclick" || aPropName == "onmouseover" ||
      aPropName == "onmouseout")
      {
      if(NS_OK == GetListenerManager(getter_AddRefs(manager)))
         {
         nsCOMPtr<nsIScriptContext> scriptCX;
         nsJSUtils::nsGetDynamicScriptContext(aContext, getter_AddRefs(scriptCX));
         if(!scriptCX ||
            NS_OK != manager->RegisterScriptEventListener(scriptCX, this, 
            atom, NS_GET_IID(nsIDOMMouseListener)))
            {
            return PR_FALSE;
            }
         }
      }
   else if(aPropName == "onkeydown" || aPropName == "onkeyup" || 
      aPropName == "onkeypress")
      {
      if(NS_OK == GetListenerManager(getter_AddRefs(manager)))
         {
         nsCOMPtr<nsIScriptContext> scriptCX;
         nsJSUtils::nsGetDynamicScriptContext(aContext,
            getter_AddRefs(scriptCX));
         if(!scriptCX ||
            NS_OK != manager->RegisterScriptEventListener(scriptCX, this,
            atom, NS_GET_IID(nsIDOMKeyListener)))
            {
            return PR_FALSE;
            }
         }
      }
   else if(aPropName == "onmousemove")
      {
      if(NS_OK == GetListenerManager(getter_AddRefs(manager)))
         {
         nsCOMPtr<nsIScriptContext> scriptCX;
         nsJSUtils::nsGetDynamicScriptContext(aContext,
            getter_AddRefs(scriptCX));
         if(!scriptCX ||
            NS_OK != manager->RegisterScriptEventListener(scriptCX, this, atom,
            NS_GET_IID(nsIDOMMouseMotionListener)))
            {
            return PR_FALSE;
            }
         }
      }
   else if(aPropName == "onfocus" || aPropName == "onblur")
      {
      if(NS_OK == GetListenerManager(getter_AddRefs(manager)))
         {
         nsCOMPtr<nsIScriptContext> scriptCX;
         nsJSUtils::nsGetDynamicScriptContext(aContext, 
            getter_AddRefs(scriptCX));
         if(!scriptCX ||
            NS_OK != manager->RegisterScriptEventListener(scriptCX, this, atom,
            NS_GET_IID(nsIDOMFocusListener)))
            {
            return PR_FALSE;
            }
         }
      }
   else if(aPropName == "onsubmit" || aPropName == "onreset" || 
      aPropName == "onchange" || aPropName == "onselect")
      {
      if(NS_OK == GetListenerManager(getter_AddRefs(manager)))
         {
         nsCOMPtr<nsIScriptContext> scriptCX;
         nsJSUtils::nsGetDynamicScriptContext(aContext, 
            getter_AddRefs(scriptCX));
         if(!scriptCX ||
            NS_OK != manager->RegisterScriptEventListener(scriptCX, this, atom,
            NS_GET_IID(nsIDOMFormListener)))
            {
            return PR_FALSE;
            }
         }
      }
   else if(aPropName == "onload" || aPropName == "onunload" || 
      aPropName == "onclose" || aPropName == "onabort" || 
      aPropName == "onerror")
      {
      if(NS_OK == GetListenerManager(getter_AddRefs(manager)))
         {
         nsCOMPtr<nsIScriptContext> scriptCX;
         nsJSUtils::nsGetDynamicScriptContext(aContext, 
            getter_AddRefs(scriptCX));
         if(!scriptCX ||
            NS_OK != manager->RegisterScriptEventListener(scriptCX, this, atom,
            NS_GET_IID(nsIDOMLoadListener)))
            {
            return PR_FALSE;
            }
         }
      }
   else if(aPropName == "onpaint")
      {
      if(NS_OK == GetListenerManager(getter_AddRefs(manager)))
         {
         nsCOMPtr<nsIScriptContext> scriptCX;
         nsJSUtils::nsGetDynamicScriptContext(aContext, getter_AddRefs(scriptCX));
         if(!scriptCX ||
            NS_OK != manager->RegisterScriptEventListener(scriptCX, this, atom,
            NS_GET_IID(nsIDOMPaintListener)))
            {
            return PR_FALSE;
            }
         }
      }

   return PR_TRUE;
}

void GlobalWindowImpl::FlushPendingNotifications()
{
  if (mDocument) {
    nsCOMPtr<nsIDocument> doc(do_QueryInterface(mDocument));
    if (doc)
      doc->FlushPendingNotifications();
  }
}

//*****************************************************************************
// GlobalWindowImpl: Creator Function (This should go away)
//*****************************************************************************   

extern "C" NS_DOM nsresult
NS_NewScriptGlobalObject(nsIScriptGlobalObject **aResult)
{
   NS_ENSURE_ARG_POINTER(aResult);
   
   *aResult = nsnull;
  
   GlobalWindowImpl *global = new GlobalWindowImpl();
   NS_ENSURE_TRUE(global, NS_ERROR_OUT_OF_MEMORY);

   return CallQueryInterface(NS_STATIC_CAST(nsIScriptGlobalObject*, global),
      aResult);
}

//*****************************************************************************
//***    NavigatorImpl: Object Management
//*****************************************************************************

NavigatorImpl::NavigatorImpl() : mScriptObject(nsnull), mMimeTypes(nsnull),
   mPlugins(nsnull)
{
   NS_INIT_REFCNT();
}

NavigatorImpl::~NavigatorImpl()
{
   NS_IF_RELEASE(mMimeTypes);
   NS_IF_RELEASE(mPlugins);
}

//*****************************************************************************
//    NavigatorImpl::nsISupports
//*****************************************************************************

NS_IMPL_ADDREF(NavigatorImpl)
NS_IMPL_RELEASE(NavigatorImpl)

NS_INTERFACE_MAP_BEGIN(NavigatorImpl)
   NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIScriptObjectOwner)
   NS_INTERFACE_MAP_ENTRY(nsIScriptObjectOwner)
   NS_INTERFACE_MAP_ENTRY(nsIDOMNavigator)
NS_INTERFACE_MAP_END

//*****************************************************************************
//    NavigatorImpl::nsIScriptObjectOwner
//*****************************************************************************

NS_IMETHODIMP NavigatorImpl::SetScriptObject(void* aScriptObject)
{
   mScriptObject = aScriptObject;
   return NS_OK;
}

NS_IMETHODIMP NavigatorImpl::GetScriptObject(nsIScriptContext* aContext, 
   void** aScriptObject)
{
   NS_PRECONDITION(nsnull != aScriptObject, "null arg");
   nsresult res = NS_OK;
   if(!mScriptObject)
      {
      nsIScriptGlobalObject *global = aContext->GetGlobalObject();
      res = NS_NewScriptNavigator(aContext, (nsISupports *)(nsIDOMNavigator *)this, global, &mScriptObject);
      NS_IF_RELEASE(global);
      }
  
   *aScriptObject = mScriptObject;
   return res;
}

//*****************************************************************************
//    NavigatorImpl::nsIDOMNavigator
//*****************************************************************************

NS_IMETHODIMP NavigatorImpl::GetUserAgent(nsString& aUserAgent)
{
   nsresult res;
   nsCOMPtr<nsIHTTPProtocolHandler> service(do_GetService(kHTTPHandlerCID, &res));
   if(NS_SUCCEEDED(res) && (nsnull != service))
      {
      PRUnichar *ua = nsnull;
      res = service->GetUserAgent(&ua);
      aUserAgent = ua;
      Recycle(ua);
      }

   return res;
}

NS_IMETHODIMP NavigatorImpl::GetAppCodeName(nsString& aAppCodeName)
{
   nsresult res;
   nsCOMPtr<nsIHTTPProtocolHandler> service(do_GetService(kHTTPHandlerCID, &res));
   if(NS_SUCCEEDED(res) && (nsnull != service))
      {
      PRUnichar *appName = nsnull;
      res = service->GetAppName(&appName);
      aAppCodeName = appName;
      Recycle(appName);
      }

   return res;
}

NS_IMETHODIMP NavigatorImpl::GetAppVersion(nsString& aAppVersion)
{
   nsresult res;
   nsCOMPtr<nsIHTTPProtocolHandler> service(do_GetService(kHTTPHandlerCID, &res));
   if(NS_SUCCEEDED(res) && (nsnull != service))
      {
      PRUnichar *str = nsnull;
      res = service->GetAppVersion(&str);
      aAppVersion = str;
      Recycle(str);

      aAppVersion += " (";                                                        
      res = service->GetPlatform(&str);                                           
      if(NS_FAILED(res)) return res;                                             
                      
      aAppVersion += str;                                                         
      Recycle(str);                                                               
                      
      aAppVersion += "; ";                                                        
                      
      res = service->GetLanguage(&str);                                           
      if (NS_FAILED(res)) return res;                                             
                      
      aAppVersion += str;                                                         
      Recycle(str);                                                               
                      
      aAppVersion += ')';    
      }

   return res;
}

NS_IMETHODIMP NavigatorImpl::GetAppName(nsString& aAppName)
{
   nsresult res;
   nsCOMPtr<nsIHTTPProtocolHandler> service(do_GetService(kHTTPHandlerCID, &res));
   if(NS_SUCCEEDED(res) && (nsnull != service))
      {
      PRUnichar *appName = nsnull;
      res = service->GetAppName(&appName);
      aAppName = appName;
      Recycle(appName);
      }

   return res;
}

NS_IMETHODIMP NavigatorImpl::GetLanguage(nsString& aLanguage)
{
   nsresult res;
   nsCOMPtr<nsIHTTPProtocolHandler> service(do_GetService(kHTTPHandlerCID, &res));
   if(NS_SUCCEEDED(res) && (nsnull != service))
      {
      PRUnichar *lang = nsnull;
      res = service->GetLanguage(&lang);
      aLanguage = lang;
      Recycle(lang);
      }

   return res;
}

NS_IMETHODIMP NavigatorImpl::GetPlatform(nsString& aPlatform)
{
   nsresult res;
   nsCOMPtr<nsIHTTPProtocolHandler> service(do_GetService(kHTTPHandlerCID, &res));
   if(NS_SUCCEEDED(res) && (nsnull != service))
      {
      PRUnichar *plat = nsnull;
      res = service->GetPlatform(&plat);
      aPlatform = plat;
      Recycle(plat);
      }

   return res;
}

NS_IMETHODIMP NavigatorImpl::GetSecurityPolicy(nsString& aSecurityPolicy)
{
   return NS_OK;
}

NS_IMETHODIMP NavigatorImpl::GetMimeTypes(nsIDOMMimeTypeArray** aMimeTypes)
{
   if(!mMimeTypes)
      {
      mMimeTypes = new MimeTypeArrayImpl(this);
      NS_IF_ADDREF(mMimeTypes);
      }

   *aMimeTypes = mMimeTypes;
   NS_IF_ADDREF(mMimeTypes);

   return NS_OK;
}

NS_IMETHODIMP NavigatorImpl::GetPlugins(nsIDOMPluginArray** aPlugins)
{
   if(!mPlugins)
      {
      mPlugins = new PluginArrayImpl(this);
      NS_IF_ADDREF(mPlugins);
      }

   *aPlugins = mPlugins;
   NS_IF_ADDREF(mPlugins);

   return NS_OK;
}

NS_IMETHODIMP NavigatorImpl::GetCookieEnabled(PRBool* aCookieEnabled)
{
   nsresult rv = NS_OK;
   *aCookieEnabled = PR_FALSE;

   NS_WITH_SERVICE(nsICookieService, service, kCookieServiceCID, &rv);
   if(NS_FAILED(rv) || service == nsnull)
      return rv;

   return service->CookieEnabled(aCookieEnabled);
}


NS_IMETHODIMP NavigatorImpl::JavaEnabled(PRBool* aReturn)
{
   nsresult rv = NS_OK;
   *aReturn = PR_FALSE;

   // determine whether user has enabled java.
   NS_WITH_SERVICE(nsIPref, prefs, kPrefServiceCID, &rv);
   if(NS_FAILED(rv) || prefs == nsnull)
      return rv;
  
   // if pref doesn't exist, map result to false.
   if(prefs->GetBoolPref("security.enable_java", aReturn) != NS_OK)
      *aReturn = PR_FALSE;

   return rv;
}

NS_IMETHODIMP NavigatorImpl::TaintEnabled(PRBool* aReturn)
{
   *aReturn = PR_FALSE;
   return NS_OK;
}

NS_IMETHODIMP NavigatorImpl::Preference(JSContext* cx, jsval* argv, 
   PRUint32 argc, jsval* aReturn)
{
   nsresult result = NS_OK;

   *aReturn = JSVAL_NULL;

   JSObject* self = (JSObject*)mScriptObject;
   if(!self)
      return NS_ERROR_FAILURE;

   NS_WITH_SERVICE(nsIScriptSecurityManager, secMan,
                  NS_SCRIPTSECURITYMANAGER_PROGID, &result);
   if(NS_FAILED(result))
      return result;

   result = secMan->CheckScriptAccess(cx, self, NS_DOM_PROP_NAVIGATOR_PREFERENCE, 
                            (argc == 1 ? PR_FALSE : PR_TRUE));
   if(NS_FAILED(result))
      {
      //Need to throw error here
      return NS_ERROR_FAILURE;
      }

   NS_WITH_SERVICE(nsIPref, pref, kPrefServiceCID, &result);
   if(NS_FAILED(result))
      return result;

   if(argc > 0)
      {
      JSString* str = JS_ValueToString(cx, argv[0]);
      if(str)
         {
         char* prefStr = JS_GetStringBytes(str);
         if(argc == 1)
            {
            PRInt32 prefType;
            pref->GetPrefType(prefStr, &prefType);
            switch(prefType & nsIPref::ePrefValuetypeMask)
               {
               case nsIPref::ePrefString:
                  {
                  char* prefCharVal;
                  result = pref->CopyCharPref(prefStr, &prefCharVal);
                  if(NS_SUCCEEDED(result))
                     {
                     JSString* retStr = JS_NewStringCopyZ(cx, prefCharVal);
                     if(retStr)
                        *aReturn = STRING_TO_JSVAL(retStr);
                     PL_strfree(prefCharVal);
                     }
                  break;
                  }

               case nsIPref::ePrefInt:
                  {
                  PRInt32 prefIntVal;
                  result = pref->GetIntPref(prefStr, &prefIntVal);
                  if(NS_SUCCEEDED(result))
                     *aReturn = INT_TO_JSVAL(prefIntVal);
                  break;
                  }

               case nsIPref::ePrefBool:
                  {
                  PRBool prefBoolVal;
                  result = pref->GetBoolPref(prefStr, &prefBoolVal);
                  if(NS_SUCCEEDED(result))
                     *aReturn = BOOLEAN_TO_JSVAL(prefBoolVal);
                  break;
                  }
               }
            }
         else 
            {
            if(JSVAL_IS_STRING(argv[1]))
               {
               JSString* valueJSStr = JS_ValueToString(cx, argv[1]);
               if(valueJSStr)
                  result = pref->SetCharPref(prefStr, JS_GetStringBytes(valueJSStr));
               }
            else if(JSVAL_IS_INT(argv[1]))
               {
               jsint valueInt = JSVAL_TO_INT(argv[1]);
               result = pref->SetIntPref(prefStr, (PRInt32)valueInt);
               }
            else if(JSVAL_IS_BOOLEAN(argv[1])) 
               {
               JSBool valueBool = JSVAL_TO_BOOLEAN(argv[1]);
               result = pref->SetBoolPref(prefStr, (PRBool)valueBool);
               }
            else if (JSVAL_IS_NULL(argv[1]))
               result = pref->DeleteBranch(prefStr);
            }
         }
      }

   return result;
}

//*****************************************************************************
//***  DOM Controller Stuff
//*****************************************************************************

#ifdef DOM_CONTROLLER
// nsDOMWindowController
const   char* sCopyString = "cmd_copy";
const   char* sCutString = "cmd_cut";
const   char* sPasteString = "cmd_paste";
const   char* sSelectAllString = "cmd_selectAll";

const   char* sBeginLineString = "cmd_beginLine";
const   char* sEndLineString   = "cmd_endLine";
const   char* sSelectBeginLineString = "cmd_selectBeginLine";
const   char* sSelectEndLineString   = "cmd_selectEndLine";

const   char* sScrollTopString = "cmd_scrollTop";
const   char* sScrollBottomString = "cmd_scrollBottom";

const   char* sMoveTopString   = "cmd_moveTop";
const   char* sMoveBottomString= "cmd_moveBottom";
const   char* sSelectMoveTopString   = "cmd_selectTop";
const   char* sSelectMoveBottomString= "cmd_selectBottom";

const   char* sDownString      = "cmd_linedown";
const   char* sUpString        = "cmd_lineup";
const   char* sSelectDownString = "cmd_selectLineDown";
const   char* sSelectUpString   = "cmd_selectLineUp";

const   char* sLeftString      = "cmd_charPrevious";
const   char* sRightString     = "cmd_charNext";
const   char* sSelectLeftString = "cmd_selectCharPrevious";
const   char* sSelectRightString= "cmd_selectCharNext";


const   char* sWordLeftString      = "cmd_wordPrevious";
const   char* sWordRightString     = "cmd_wordNext";
const   char* sSelectWordLeftString = "cmd_selectWordPrevious";
const   char* sSelectWordRightString= "cmd_selectWordNext";

const   char* sScrollPageUp    = "cmd_scrollPageUp";
const   char* sScrollPageDown  = "cmd_scrollPageDown";

const   char* sScrollLineUp    = "cmd_scrollLineUp";
const   char* sScrollLineDown  = "cmd_scrollLineDown";

const   char* sMovePageUp    = "cmd_scrollPageUp";
const   char* sMovePageDown  = "cmd_scrollPageDown";
const   char* sSelectMovePageUp     = "cmd_selectPageUp";
const   char* sSelectMovePageDown   = "cmd_selectPageDown";

NS_IMPL_ADDREF( nsDOMWindowController )
NS_IMPL_RELEASE( nsDOMWindowController )


NS_INTERFACE_MAP_BEGIN(nsDOMWindowController)
   NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIController)
   NS_INTERFACE_MAP_ENTRY(nsIController)
NS_INTERFACE_MAP_END


//NS_IMPL_QUERY_INTERFACE1(nsDOMWindowController, nsIController)

nsDOMWindowController::nsDOMWindowController( nsIDOMWindow* aWindow)
{
	NS_INIT_REFCNT();
	mWindow =  aWindow;
}

nsresult nsDOMWindowController::GetEditInterface(nsIContentViewerEdit** aEditInterface)
{	 
   nsresult result = NS_ERROR_FAILURE;
	nsCOMPtr<nsPIDOMWindow> piwindow(do_QueryInterface(mWindow));
   NS_ENSURE_TRUE(piwindow, NS_ERROR_FAILURE);

   nsCOMPtr<nsIDocShell> docShell;
   piwindow->GetDocShell(getter_AddRefs(docShell));
   NS_ENSURE_TRUE(docShell, NS_ERROR_FAILURE);

   nsCOMPtr<nsIContentViewer> viewer;
   docShell->GetContentViewer(getter_AddRefs(viewer));
   nsCOMPtr<nsIContentViewerEdit> edit(do_QueryInterface(viewer));
   NS_ENSURE_TRUE(edit, NS_ERROR_FAILURE);
   
   *aEditInterface = edit;
   NS_ADDREF(*aEditInterface);
   return NS_OK;
}

nsresult nsDOMWindowController::GetPresShell(nsIPresShell** aPresShell)
{
   nsresult result = NS_ERROR_FAILURE;
	nsCOMPtr<nsPIDOMWindow> piwindow(do_QueryInterface(mWindow));
   NS_ENSURE_TRUE(piwindow, NS_ERROR_FAILURE);

   nsCOMPtr<nsIDocShell> docShell;
   piwindow->GetDocShell(getter_AddRefs(docShell));
   NS_ENSURE_TRUE(docShell, NS_ERROR_FAILURE);

   NS_ENSURE_SUCCESS(docShell->GetPresShell(aPresShell), NS_ERROR_FAILURE);
   return NS_OK;
}

nsresult
nsDOMWindowController::GetSelectionController(nsISelectionController **aSelCon)
{
  nsCOMPtr<nsIPresShell> presShell;
  nsresult result = GetPresShell(getter_AddRefs(presShell));
  if (presShell && NS_SUCCEEDED(result))
  {
    nsCOMPtr<nsISelectionController> selController = do_QueryInterface(presShell); 
    if (selController)
    {
      *aSelCon = selController;
      NS_ADDREF(*aSelCon);
      return NS_OK;
    }
  }
  return result ? result : NS_ERROR_FAILURE;
}



NS_IMETHODIMP nsDOMWindowController::IsCommandEnabled(const PRUnichar *aCommand, PRBool *aResult)
{
  NS_ENSURE_ARG_POINTER(aCommand);
  NS_ENSURE_ARG_POINTER(aResult);

  *aResult = PR_FALSE;
  nsresult rv = NS_ERROR_FAILURE;
  
  nsCOMPtr< nsIContentViewerEdit> editInterface;
  rv = GetEditInterface( getter_AddRefs( editInterface) );
  if ( NS_FAILED (rv ) )
  	return rv;
  	
  if (PR_TRUE== nsAutoString(sCopyString).Equals(aCommand))
  { 
    rv = editInterface->GetCopyable( aResult );
  }
  else if (PR_TRUE==nsAutoString(sCutString).Equals(aCommand))    
  { 
    rv =  editInterface->GetCutable( aResult);
  }
  else if (PR_TRUE==nsAutoString(sPasteString).Equals(aCommand))    
  { 
    rv = editInterface->GetPasteable( aResult );
  }
  else if (PR_TRUE==nsAutoString(sSelectAllString).Equals(aCommand))    
  { 
    *aResult = PR_TRUE;
    rv = NS_OK;
  }
  return rv;

}

NS_IMETHODIMP nsDOMWindowController::SupportsCommand(const PRUnichar *aCommand, PRBool *aResult)
{
  NS_ENSURE_ARG_POINTER(aCommand);
  NS_ENSURE_ARG_POINTER(aResult);
  
  *aResult = PR_FALSE;
  if (
  	(PR_TRUE== nsAutoString(sCopyString).Equals(aCommand)) ||
  	  (PR_TRUE== nsAutoString(sSelectAllString).Equals(aCommand)) ||
  	  (PR_TRUE== nsAutoString(sCutString).Equals(aCommand)) ||
  	  (PR_TRUE== nsAutoString(sPasteString).Equals(aCommand)) ||
      (PR_TRUE== nsAutoString(sBeginLineString).Equals(aCommand)) ||
      (PR_TRUE== nsAutoString(sEndLineString).Equals(aCommand)) ||
      (PR_TRUE== nsAutoString(sSelectBeginLineString).Equals(aCommand)) ||
      (PR_TRUE== nsAutoString(sSelectEndLineString).Equals(aCommand)) ||
      (PR_TRUE== nsAutoString(sScrollTopString).Equals(aCommand)) ||
      (PR_TRUE== nsAutoString(sScrollBottomString).Equals(aCommand)) ||
      (PR_TRUE== nsAutoString(sMoveTopString).Equals(aCommand)) ||
      (PR_TRUE== nsAutoString(sMoveBottomString).Equals(aCommand)) ||
      (PR_TRUE== nsAutoString(sSelectMoveTopString).Equals(aCommand)) ||
      (PR_TRUE== nsAutoString(sSelectMoveBottomString).Equals(aCommand)) ||
      (PR_TRUE== nsAutoString(sDownString).Equals(aCommand)) ||
      (PR_TRUE== nsAutoString(sUpString).Equals(aCommand)) ||
      (PR_TRUE== nsAutoString(sLeftString).Equals(aCommand)) ||
      (PR_TRUE== nsAutoString(sRightString).Equals(aCommand)) ||
      (PR_TRUE== nsAutoString(sSelectDownString).Equals(aCommand)) ||
      (PR_TRUE== nsAutoString(sSelectUpString).Equals(aCommand)) ||
      (PR_TRUE== nsAutoString(sSelectLeftString).Equals(aCommand)) ||
      (PR_TRUE== nsAutoString(sSelectRightString).Equals(aCommand)) ||
      (PR_TRUE== nsAutoString(sWordLeftString).Equals(aCommand)) ||
      (PR_TRUE== nsAutoString(sWordRightString).Equals(aCommand)) ||
      (PR_TRUE== nsAutoString(sSelectWordLeftString).Equals(aCommand)) ||
      (PR_TRUE== nsAutoString(sSelectWordRightString).Equals(aCommand)) ||
      (PR_TRUE== nsAutoString(sScrollPageUp).Equals(aCommand)) ||
      (PR_TRUE== nsAutoString(sScrollPageDown).Equals(aCommand)) ||
      (PR_TRUE== nsAutoString(sScrollLineUp).Equals(aCommand)) ||
      (PR_TRUE== nsAutoString(sScrollLineDown).Equals(aCommand)) ||
      (PR_TRUE== nsAutoString(sMovePageUp).Equals(aCommand)) ||
      (PR_TRUE== nsAutoString(sMovePageDown).Equals(aCommand)) ||
      (PR_TRUE== nsAutoString(sSelectMovePageUp).Equals(aCommand)) ||
      (PR_TRUE== nsAutoString(sSelectMovePageDown).Equals(aCommand))
      )
  {
    *aResult = PR_TRUE;
  }

  return NS_OK;
}

NS_IMETHODIMP nsDOMWindowController::DoCommand(const PRUnichar *aCommand)
{
  NS_ENSURE_ARG_POINTER(aCommand);
  nsresult rv = NS_ERROR_FAILURE;
  nsCOMPtr< nsIContentViewerEdit> editInterface;
  nsCOMPtr<nsISelectionController> selCont;
  rv = GetEditInterface( getter_AddRefs( editInterface ) );
  nsCOMPtr<nsIPresShell> presShell;
  if ( NS_FAILED ( rv ) )
  	return rv;
  	
  if (PR_TRUE== nsAutoString(sCopyString).Equals(aCommand))
  { 
    rv = editInterface->CopySelection();
  }
  else if (PR_TRUE== nsAutoString(sCutString).Equals(aCommand))    
  { 
    rv = editInterface->CutSelection();
  }
  else if (PR_TRUE== nsAutoString(sPasteString).Equals(aCommand))    
  { 
    rv = editInterface->Paste();
  }
  else if (PR_TRUE== nsAutoString(sSelectAllString).Equals(aCommand))    
  { 
    rv = editInterface->SelectAll();
  }
  else if (PR_TRUE==nsAutoString(sScrollPageUp).Equals(aCommand))  //ScrollPageUp
  { 
    NS_ENSURE_SUCCESS(GetSelectionController(getter_AddRefs(selCont)),NS_ERROR_FAILURE);
    return selCont->ScrollPage(PR_FALSE);
  }
  else if (PR_TRUE==nsAutoString(sScrollPageDown).Equals(aCommand))  //ScrollPageDown
  { 
    NS_ENSURE_SUCCESS(GetSelectionController(getter_AddRefs(selCont)),NS_ERROR_FAILURE);
    return selCont->ScrollPage(PR_TRUE);
  }
  else if (PR_TRUE==nsAutoString(sScrollLineUp).Equals(aCommand))  //ScrollLineUp
  { 
    NS_ENSURE_SUCCESS(GetSelectionController(getter_AddRefs(selCont)),NS_ERROR_FAILURE);
    return selCont->ScrollLine(PR_FALSE);
  }
  else if (PR_TRUE==nsAutoString(sScrollLineDown).Equals(aCommand))  //ScrollLineDown
  { 
    NS_ENSURE_SUCCESS(GetSelectionController(getter_AddRefs(selCont)),NS_ERROR_FAILURE);
    return selCont->ScrollLine(PR_TRUE);
  }

  return NS_OK;
}

NS_IMETHODIMP nsDOMWindowController::OnEvent(const PRUnichar *aEventName)
{
  return NS_OK;
}
#endif