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f6a4f1885b
gecko-dev/docshell/base/nsWebShell.cpp
darin%netscape.com f6a4f1885b patch for bug 107789 "deprecate nsIRandomAccessStore (superceded by nsISeekableStream)" 
r=dougt, sr=rpotts
2001-11-14 06:45:27 +00:00

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: NPL 1.1/GPL 2.0/LGPL 2.1
*
* 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 Communicator client code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Travis Bogard <travis@netscape.com>
* Dan Rosen <dr@netscape.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the NPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the NPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifdef XP_OS2_VACPP
// XXX every other file that pulls in _os2.h has no problem with HTMX there;
// this one does; the problem may lie with the order of the headers below,
// which is why this fix is here instead of in _os2.h
typedef unsigned long HMTX;
#endif
#include "nsDocShell.h"
#include "nsIWebShell.h"
#include "nsWebShell.h"
#include "nsIWebBrowserChrome.h"
#include "nsIInterfaceRequestor.h"
#include "nsIInterfaceRequestorUtils.h"
#include "nsIWebProgress.h"
#include "nsIDocumentLoader.h"
#include "nsIDocumentLoaderFactory.h"
#include "nsIContentViewer.h"
#include "nsIDocumentViewer.h"
#include "nsIMarkupDocumentViewer.h"
#include "nsIClipboardCommands.h"
#include "nsILinkHandler.h"
#include "nsIStreamListener.h"
#include "nsIPrompt.h"
#include "nsNetUtil.h"
#include "nsIProtocolHandler.h"
#include "nsIDNSService.h"
#include "nsIRefreshURI.h"
#include "nsIScriptGlobalObject.h"
#include "nsIScriptGlobalObjectOwner.h"
#include "nsIDOMEvent.h"
#include "nsIPresContext.h"
#include "nsIComponentManager.h"
#include "nsIServiceManager.h"
#include "nsIEventQueueService.h"
#include "nsCRT.h"
#include "nsVoidArray.h"
#include "nsString.h"
#include "nsReadableUtils.h"
#include "nsWidgetsCID.h"
#include "nsGfxCIID.h"
#include "plevent.h"
#include "prprf.h"
#include "nsIPluginHost.h"
#include "nsplugin.h"
//#include "nsPluginsCID.h"
#include "nsIPluginManager.h"
#include "nsIPref.h"
#include "nsITimer.h"
#include "nsITimerCallback.h"
#include "nsIContent.h"
#include "prlog.h"
#include "nsCOMPtr.h"
#include "nsIPresShell.h"
#include "nsIWebShellServices.h"
#include "nsIGlobalHistory.h"
#include "prmem.h"
#include "prthread.h"
#include "nsXPIDLString.h"
#include "nsDOMError.h"
#include "nsIDOMHTMLElement.h"
#include "nsIDOMHTMLDocument.h"
#include "nsLayoutCID.h"
#include "nsIDOMRange.h"
#include "nsIURIContentListener.h"
#include "nsIDOMDocument.h"
#include "nsIBaseWindow.h"
#include "nsIDocShell.h"
#include "nsIDocShellTreeItem.h"
#include "nsIDocShellTreeNode.h"
#include "nsIDocShellTreeOwner.h"
#include "nsCURILoader.h"
#include "nsIDOMWindowInternal.h"
#include "nsEscape.h"
#include "nsIPlatformCharset.h"
#include "nsICharsetConverterManager.h"
#include "nsISocketTransportService.h"
#include "nsILayoutHistoryState.h"
#include "nsTextFormatter.h"
#include "nsPIDOMWindow.h"
#include "nsIController.h"
#include "nsIFocusController.h"
#include "nsGUIEvent.h"
#include "nsISelection.h"
#include "nsISelectionController.h"
#include "nsIFileStream.h"
#include "nsISHistoryInternal.h"
#include "nsIHistoryEntry.h"
#include "nsIHttpChannel.h" // add this to the ick include list...we need it to QI for post data interface
#include "nsIUploadChannel.h"
#include "nsILocaleService.h"
#include "nsIStringBundle.h"
#include "nsIIOService.h"
#include "nsIURL.h"
#include "nsIProtocolHandler.h"
#include "nsICachingChannel.h"
//XXX for nsIPostData; this is wrong; we shouldn't see the nsIDocument type
#include "nsIDocument.h"
#include "nsITextToSubURI.h"
#ifdef NS_DEBUG
/**
* Note: the log module is created during initialization which
* means that you cannot perform logging before then.
*/
static PRLogModuleInfo* gLogModule = PR_NewLogModule("webshell");
#endif
#define WEB_TRACE_CALLS 0x1
#define WEB_TRACE_HISTORY 0x2
#define WEB_LOG_TEST(_lm,_bit) (PRIntn((_lm)->level) & (_bit))
#ifdef NS_DEBUG
#define WEB_TRACE(_bit,_args) \
PR_BEGIN_MACRO \
if (WEB_LOG_TEST(gLogModule,_bit)) { \
PR_LogPrint _args; \
} \
PR_END_MACRO
#else
#define WEB_TRACE(_bit,_args)
#endif
//static NS_DEFINE_CID(kGlobalHistoryCID, NS_GLOBALHISTORY_CID);
//static NS_DEFINE_CID(kIOServiceCID, NS_IOSERVICE_CID);
static NS_DEFINE_CID(kSimpleURICID, NS_SIMPLEURI_CID);
//----------------------------------------------------------------------
//----------------------------------------------------------------------
// Class IID's
static NS_DEFINE_IID(kEventQueueServiceCID, NS_EVENTQUEUESERVICE_CID);
static NS_DEFINE_CID(kCDOMRangeCID, NS_RANGE_CID);
//----------------------------------------------------------------------
// Note: operator new zeros our memory
nsWebShell::nsWebShell() : nsDocShell()
{
#ifdef DEBUG
// We're counting the number of |nsWebShells| to help find leaks
++gNumberOfWebShells;
#endif
#ifdef DEBUG
printf("WEBSHELL+ = %ld\n", gNumberOfWebShells);
#endif
NS_INIT_REFCNT();
mThread = nsnull;
InitFrameData();
mItemType = typeContent;
mCharsetReloadState = eCharsetReloadInit;
mHistoryState = nsnull;
mBounds.SetRect(0, 0, 0, 0);
}
nsWebShell::~nsWebShell()
{
Destroy();
// Stop any pending document loads and destroy the loader...
if (nsnull != mDocLoader) {
mDocLoader->Stop();
mDocLoader->SetContainer(nsnull);
mDocLoader->Destroy();
NS_RELEASE(mDocLoader);
}
// Cancel any timers that were set for this loader.
CancelRefreshURITimers();
++mRefCnt; // following releases can cause this destructor to be called
// recursively if the refcount is allowed to remain 0
mContentViewer=nsnull;
mDeviceContext=nsnull;
NS_IF_RELEASE(mContainer);
if (mScriptGlobal) {
mScriptGlobal->SetDocShell(nsnull);
mScriptGlobal = nsnull;
}
if (mScriptContext) {
mScriptContext->SetOwner(nsnull);
mScriptContext = nsnull;
}
InitFrameData();
#ifdef DEBUG
// We're counting the number of |nsWebShells| to help find leaks
--gNumberOfWebShells;
#endif
#ifdef DEBUG
printf("WEBSHELL- = %ld\n", gNumberOfWebShells);
#endif
}
void nsWebShell::InitFrameData()
{
SetMarginWidth(-1);
SetMarginHeight(-1);
}
NS_IMPL_ADDREF_INHERITED(nsWebShell, nsDocShell)
NS_IMPL_RELEASE_INHERITED(nsWebShell, nsDocShell)
NS_INTERFACE_MAP_BEGIN(nsWebShell)
#if 0 // inherits from nsDocShell:
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIWebShell)
#endif
NS_INTERFACE_MAP_ENTRY(nsIWebShell)
NS_INTERFACE_MAP_ENTRY(nsIWebShellServices)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsIContentViewerContainer, nsIWebShell)
NS_INTERFACE_MAP_ENTRY(nsIWebShellContainer)
NS_INTERFACE_MAP_ENTRY(nsILinkHandler)
NS_INTERFACE_MAP_ENTRY(nsIClipboardCommands)
#if 0 // inherits from nsDocShell:
NS_INTERFACE_MAP_ENTRY(nsIScriptGlobalObjectOwner)
NS_INTERFACE_MAP_ENTRY(nsIInterfaceRequestor)
NS_INTERFACE_MAP_ENTRY(nsIBaseWindow)
NS_INTERFACE_MAP_ENTRY(nsIDocShell)
NS_INTERFACE_MAP_ENTRY(nsIDocShellTreeItem)
NS_INTERFACE_MAP_ENTRY(nsIDocShellTreeNode)
NS_INTERFACE_MAP_ENTRY(nsIWebNavigation)
NS_INTERFACE_MAP_ENTRY(nsIRefreshURI)
NS_INTERFACE_MAP_ENTRY(nsIScrollable)
#endif
NS_INTERFACE_MAP_END_INHERITING(nsDocShell)
NS_IMETHODIMP
nsWebShell::GetInterface(const nsIID &aIID, void** aInstancePtr)
{
NS_ENSURE_ARG_POINTER(aInstancePtr);
nsresult rv = NS_OK;
*aInstancePtr = nsnull;
if(aIID.Equals(NS_GET_IID(nsILinkHandler)))
{
*aInstancePtr = NS_STATIC_CAST(nsILinkHandler*, this);
NS_ADDREF((nsISupports*)*aInstancePtr);
return NS_OK;
}
else if(aIID.Equals(NS_GET_IID(nsIScriptGlobalObjectOwner)))
{
*aInstancePtr = NS_STATIC_CAST(nsIScriptGlobalObjectOwner*, this);
NS_ADDREF((nsISupports*)*aInstancePtr);
return NS_OK;
}
else if(aIID.Equals(NS_GET_IID(nsIScriptGlobalObject)))
{
NS_ENSURE_SUCCESS(EnsureScriptEnvironment(), NS_ERROR_FAILURE);
*aInstancePtr = mScriptGlobal;
NS_ADDREF((nsISupports*)*aInstancePtr);
return NS_OK;
}
else if(aIID.Equals(NS_GET_IID(nsIDOMWindowInternal)) ||
aIID.Equals(NS_GET_IID(nsIDOMWindow)))
{
NS_ENSURE_SUCCESS(EnsureScriptEnvironment(), NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(mScriptGlobal->QueryInterface(aIID, aInstancePtr),
NS_ERROR_FAILURE);
return NS_OK;
}
if (!*aInstancePtr || NS_FAILED(rv))
return nsDocShell::GetInterface(aIID,aInstancePtr);
else
return rv;
}
NS_IMETHODIMP
nsWebShell::SetupNewViewer(nsIContentViewer* aViewer)
{
NS_ENSURE_SUCCESS(nsDocShell::SetupNewViewer(aViewer), NS_ERROR_FAILURE);
// If the history state has been set by session history,
// set it on the pres shell now that we have a content
// viewer.
if(mContentViewer && mHistoryState)
{
nsCOMPtr<nsIDocumentViewer> docv(do_QueryInterface(mContentViewer));
if(docv)
{
nsCOMPtr<nsIPresShell> shell;
docv->GetPresShell(*getter_AddRefs(shell));
if(shell)
shell->SetHistoryState((nsILayoutHistoryState*)mHistoryState);
}
}
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::Embed(nsIContentViewer* aContentViewer,
const char* aCommand,
nsISupports* aExtraInfo)
{
return nsDocShell::Embed(aContentViewer, aCommand, aExtraInfo);
}
NS_IMETHODIMP
nsWebShell::SetContainer(nsIWebShellContainer* aContainer)
{
NS_IF_RELEASE(mContainer);
mContainer = aContainer;
NS_IF_ADDREF(mContainer);
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::GetContainer(nsIWebShellContainer*& aResult)
{
aResult = mContainer;
NS_IF_ADDREF(mContainer);
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::GetTopLevelWindow(nsIWebShellContainer** aTopLevelWindow)
{
NS_ENSURE_ARG_POINTER(aTopLevelWindow);
*aTopLevelWindow = nsnull;
nsCOMPtr<nsIWebShell> rootWebShell;
GetRootWebShellEvenIfChrome(getter_AddRefs(rootWebShell));
if(!rootWebShell)
return NS_OK;
nsCOMPtr<nsIWebShellContainer> rootContainer;
rootWebShell->GetContainer(*aTopLevelWindow);
return NS_OK;
}
nsEventStatus PR_CALLBACK
nsWebShell::HandleEvent(nsGUIEvent *aEvent)
{
return nsEventStatus_eIgnore;
}
NS_IMETHODIMP
nsWebShell::GetRootWebShell(nsIWebShell*& aResult)
{
nsCOMPtr<nsIDocShellTreeItem> top;
GetSameTypeRootTreeItem(getter_AddRefs(top));
nsCOMPtr<nsIWebShell> topAsWebShell(do_QueryInterface(top));
aResult = topAsWebShell;
NS_IF_ADDREF(aResult);
return NS_OK;
}
void
nsWebShell::GetRootWebShellEvenIfChrome(nsIWebShell** aResult)
{
nsCOMPtr<nsIDocShellTreeItem> top;
GetRootTreeItem(getter_AddRefs(top));
nsCOMPtr<nsIWebShell> topAsWebShell(do_QueryInterface(top));
*aResult = topAsWebShell;
NS_IF_ADDREF(*aResult);
}
/*
NS_IMETHODIMP
nsWebShell::SetParent(nsIWebShell* aParent)
{
nsCOMPtr<nsIDocShellTreeItem> parentAsTreeItem(do_QueryInterface(aParent));
mParent = parentAsTreeItem.get();
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::GetParent(nsIWebShell*& aParent)
{
nsCOMPtr<nsIDocShellTreeItem> parent;
NS_ENSURE_SUCCESS(GetSameTypeParent(getter_AddRefs(parent)), NS_ERROR_FAILURE);
if(parent)
parent->QueryInterface(NS_GET_IID(nsIWebShell), (void**)&aParent);
else
aParent = nsnull;
return NS_OK;
}
*/
NS_IMETHODIMP
nsWebShell::GetReferrer(nsIURI **aReferrer)
{
*aReferrer = mReferrerURI;
NS_IF_ADDREF(*aReferrer);
return NS_OK;
}
void
nsWebShell::SetReferrer(const PRUnichar* aReferrer)
{
NS_NewURI(getter_AddRefs(mReferrerURI), nsDependentString(aReferrer), nsnull);
}
NS_IMETHODIMP
nsWebShell::SetURL(const PRUnichar* aURL)
{
nsCOMPtr<nsIURI> uri;
NS_ENSURE_SUCCESS(NS_NewURI(getter_AddRefs(uri), nsDependentString(aURL),
nsnull),
NS_ERROR_FAILURE);
SetCurrentURI(uri);
return NS_OK;
}
/**
* Document Load methods
*/
NS_IMETHODIMP
nsWebShell::GetDocumentLoader(nsIDocumentLoader*& aResult)
{
aResult = mDocLoader;
NS_IF_ADDREF(mDocLoader);
return (nsnull != mDocLoader) ? NS_OK : NS_ERROR_FAILURE;
}
//----------------------------------------
// History methods
NS_IMETHODIMP nsWebShell::GoTo(PRInt32 aIndex)
{
NS_ENSURE_STATE(mSessionHistory);
NS_ENSURE_TRUE(!IsFrame(), NS_ERROR_FAILURE);
nsCOMPtr<nsIHistoryEntry> entry;
mSessionHistory->GetEntryAtIndex(aIndex, PR_TRUE, getter_AddRefs(entry));
NS_ENSURE_TRUE(entry, NS_ERROR_FAILURE);
nsCOMPtr<nsISHEntry> shEntry(do_QueryInterface(entry));
NS_ENSURE_TRUE(shEntry, NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(LoadHistoryEntry(shEntry, LOAD_HISTORY), NS_ERROR_FAILURE);
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::GetHistoryLength(PRInt32& aResult)
{
NS_ENSURE_STATE(mSessionHistory);
NS_ENSURE_TRUE(!IsFrame(), NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(mSessionHistory->GetCount(&aResult), NS_ERROR_FAILURE);
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::GetHistoryIndex(PRInt32& aResult)
{
NS_ENSURE_STATE(mSessionHistory);
NS_ENSURE_TRUE(!IsFrame(), NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(mSessionHistory->GetIndex(&aResult), NS_ERROR_FAILURE);
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::GetURL(PRInt32 aIndex, PRUnichar** aURLResult)
{
NS_ENSURE_STATE(mSessionHistory);
NS_ENSURE_TRUE(!IsFrame(), NS_ERROR_FAILURE);
nsCOMPtr<nsIHistoryEntry> entry;
NS_ENSURE_SUCCESS(mSessionHistory->GetEntryAtIndex(aIndex, PR_TRUE,
getter_AddRefs(entry)), NS_ERROR_FAILURE);
NS_ENSURE_TRUE(entry, NS_ERROR_FAILURE);
nsCOMPtr<nsIURI> uri;
entry->GetURI(getter_AddRefs(uri));
NS_ENSURE_TRUE(uri, NS_ERROR_FAILURE);
nsXPIDLCString spec;
uri->GetSpec(getter_Copies(spec));
*aURLResult = ToNewUnicode(NS_ConvertASCIItoUCS2(spec));
return NS_OK;
}
//----------------------------------------
//----------------------------------------------------------------------
// WebShell container implementation
NS_IMETHODIMP
nsWebShell::SetHistoryState(nsISupports* aLayoutHistoryState)
{
mHistoryState = aLayoutHistoryState;
return NS_OK;
}
//----------------------------------------------------------------------
// Web Shell Services API
NS_IMETHODIMP
nsWebShell::LoadDocument(const char* aURL,
const char* aCharset,
nsCharsetSource aSource)
{
// XXX hack. kee the aCharset and aSource wait to pick it up
nsCOMPtr<nsIContentViewer> cv;
NS_ENSURE_SUCCESS(GetContentViewer(getter_AddRefs(cv)), NS_ERROR_FAILURE);
if (cv)
{
nsCOMPtr<nsIMarkupDocumentViewer> muDV = do_QueryInterface(cv);
if (muDV)
{
nsCharsetSource hint;
muDV->GetHintCharacterSetSource((PRInt32 *)(&hint));
if( aSource > hint )
{
muDV->SetHintCharacterSet(NS_ConvertASCIItoUCS2(aCharset).get());
muDV->SetHintCharacterSetSource((PRInt32)aSource);
if(eCharsetReloadRequested != mCharsetReloadState)
{
mCharsetReloadState = eCharsetReloadRequested;
LoadURI(NS_ConvertASCIItoUCS2(aURL).get(), LOAD_FLAGS_NONE);
}
}
}
}
return NS_OK;
}
//This functions is only called when a new charset is detected in loading a document.
//Its name should be changed to "CharsetReloadDocument"
NS_IMETHODIMP
nsWebShell::ReloadDocument(const char* aCharset,
nsCharsetSource aSource)
{
// XXX hack. kee the aCharset and aSource wait to pick it up
nsCOMPtr<nsIContentViewer> cv;
NS_ENSURE_SUCCESS(GetContentViewer(getter_AddRefs(cv)), NS_ERROR_FAILURE);
if (cv)
{
nsCOMPtr<nsIMarkupDocumentViewer> muDV = do_QueryInterface(cv);
if (muDV)
{
nsCharsetSource hint;
muDV->GetHintCharacterSetSource((PRInt32 *)(&hint));
if( aSource > hint )
{
muDV->SetHintCharacterSet(NS_ConvertASCIItoUCS2(aCharset).get());
muDV->SetHintCharacterSetSource((PRInt32)aSource);
if(eCharsetReloadRequested != mCharsetReloadState)
{
mCharsetReloadState = eCharsetReloadRequested;
return Reload(LOAD_FLAGS_CHARSET_CHANGE);
}
}
}
}
//return failer if this request is not accepted due to mCharsetReloadState
return NS_ERROR_WEBSHELL_REQUEST_REJECTED;
}
NS_IMETHODIMP
nsWebShell::StopDocumentLoad(void)
{
if(eCharsetReloadRequested != mCharsetReloadState)
{
Stop(nsIWebNavigation::STOP_ALL);
return NS_OK;
}
//return failer if this request is not accepted due to mCharsetReloadState
return NS_ERROR_WEBSHELL_REQUEST_REJECTED;
}
NS_IMETHODIMP
nsWebShell::SetRendering(PRBool aRender)
{
if(eCharsetReloadRequested != mCharsetReloadState)
{
if (mContentViewer) {
mContentViewer->SetEnableRendering(aRender);
return NS_OK;
}
}
//return failer if this request is not accepted due to mCharsetReloadState
return NS_ERROR_WEBSHELL_REQUEST_REJECTED;
}
//----------------------------------------------------------------------
// WebShell link handling
struct OnLinkClickEvent : public PLEvent {
OnLinkClickEvent(nsWebShell* aHandler, nsIContent* aContent,
nsLinkVerb aVerb, const PRUnichar* aURLSpec,
const PRUnichar* aTargetSpec, nsIInputStream* aPostDataStream = 0,
nsIInputStream* aHeadersDataStream = 0);
~OnLinkClickEvent();
void HandleEvent() {
mHandler->HandleLinkClickEvent(mContent, mVerb, mURLSpec->get(),
mTargetSpec->get(), mPostDataStream,
mHeadersDataStream);
}
nsWebShell* mHandler;
nsString* mURLSpec;
nsString* mTargetSpec;
nsIInputStream* mPostDataStream;
nsIInputStream* mHeadersDataStream;
nsIContent* mContent;
nsLinkVerb mVerb;
};
static void PR_CALLBACK HandlePLEvent(OnLinkClickEvent* aEvent)
{
aEvent->HandleEvent();
}
static void PR_CALLBACK DestroyPLEvent(OnLinkClickEvent* aEvent)
{
delete aEvent;
}
OnLinkClickEvent::OnLinkClickEvent(nsWebShell* aHandler,
nsIContent *aContent,
nsLinkVerb aVerb,
const PRUnichar* aURLSpec,
const PRUnichar* aTargetSpec,
nsIInputStream* aPostDataStream,
nsIInputStream* aHeadersDataStream)
{
mHandler = aHandler;
NS_ADDREF(aHandler);
mURLSpec = new nsString(aURLSpec);
mTargetSpec = new nsString(aTargetSpec);
mPostDataStream = aPostDataStream;
NS_IF_ADDREF(mPostDataStream);
mHeadersDataStream = aHeadersDataStream;
NS_IF_ADDREF(mHeadersDataStream);
mContent = aContent;
NS_IF_ADDREF(mContent);
mVerb = aVerb;
PL_InitEvent(this, nsnull,
(PLHandleEventProc) ::HandlePLEvent,
(PLDestroyEventProc) ::DestroyPLEvent);
nsCOMPtr<nsIEventQueue> eventQueue;
aHandler->GetEventQueue(getter_AddRefs(eventQueue));
NS_ASSERTION(eventQueue, "no event queue");
if (eventQueue)
eventQueue->PostEvent(this);
}
OnLinkClickEvent::~OnLinkClickEvent()
{
NS_IF_RELEASE(mContent);
NS_IF_RELEASE(mHandler);
NS_IF_RELEASE(mPostDataStream);
NS_IF_RELEASE(mHeadersDataStream);
if (nsnull != mURLSpec) delete mURLSpec;
if (nsnull != mTargetSpec) delete mTargetSpec;
}
//----------------------------------------
NS_IMETHODIMP
nsWebShell::OnLinkClick(nsIContent* aContent,
nsLinkVerb aVerb,
const PRUnichar* aURLSpec,
const PRUnichar* aTargetSpec,
nsIInputStream* aPostDataStream,
nsIInputStream* aHeadersDataStream)
{
OnLinkClickEvent* ev;
nsresult rv = NS_OK;
ev = new OnLinkClickEvent(this, aContent, aVerb, aURLSpec,
aTargetSpec, aPostDataStream, aHeadersDataStream);
if (nsnull == ev) {
rv = NS_ERROR_OUT_OF_MEMORY;
}
return rv;
}
nsresult
nsWebShell::GetEventQueue(nsIEventQueue **aQueue)
{
NS_ENSURE_ARG_POINTER(aQueue);
*aQueue = 0;
nsCOMPtr<nsIEventQueueService> eventService(do_GetService(kEventQueueServiceCID));
if (eventService)
eventService->GetThreadEventQueue(mThread, aQueue);
return *aQueue ? NS_OK : NS_ERROR_FAILURE;
}
void
nsWebShell::HandleLinkClickEvent(nsIContent *aContent,
nsLinkVerb aVerb,
const PRUnichar* aURLSpec,
const PRUnichar* aTargetSpec,
nsIInputStream* aPostDataStream,
nsIInputStream* aHeadersDataStream)
{
nsresult rv;
nsAutoString target(aTargetSpec);
switch(aVerb) {
case eLinkVerb_New:
target.AssignWithConversion("_blank");
// Fall into replace case
case eLinkVerb_Undefined:
// Fall through, this seems like the most reasonable action
case eLinkVerb_Replace:
{
// for now, just hack the verb to be view-link-clicked
// and down in the load document code we'll detect this and
// set the correct uri loader command
nsCOMPtr<nsIURI> uri;
NS_NewURI(getter_AddRefs(uri), nsDependentString(aURLSpec), nsnull);
// No URI object? This may indicate the URLspec is for an
// unrecognized protocol. Embedders might still be interested
// in handling the click, so we fire a notification before
// throwing the click away.
if (!uri && NS_SUCCEEDED(EnsureContentListener()))
{
nsCOMPtr<nsIURIContentListener> listener = do_QueryInterface(mContentListener);
nsCAutoString spec; spec.AssignWithConversion(aURLSpec);
PRBool abort = PR_FALSE;
uri = do_CreateInstance(kSimpleURICID, &rv);
NS_ASSERTION(NS_SUCCEEDED(rv), "can't create simple uri");
if (NS_SUCCEEDED(rv))
{
rv = uri->SetSpec(spec.get());
NS_ASSERTION(NS_SUCCEEDED(rv), "spec is invalid");
if (NS_SUCCEEDED(rv))
{
listener->OnStartURIOpen(uri, &abort);
}
}
return;
}
rv = InternalLoad(uri, // New URI
mCurrentURI, // Referer URI
nsnull, // No onwer
PR_TRUE, // Inherit owner from document
target.get(), // Window target
aPostDataStream, // Post data stream
aHeadersDataStream, // Headers stream
LOAD_LINK, // Load type
nsnull); // No SHEntry
}
break;
case eLinkVerb_Embed:
// XXX TODO Should be similar to the HTML IMG ALT attribute handling
// in NS 4.x
default:
NS_ABORT_IF_FALSE(0,"unexpected link verb");
}
}
NS_IMETHODIMP
nsWebShell::OnOverLink(nsIContent* aContent,
const PRUnichar* aURLSpec,
const PRUnichar* aTargetSpec)
{
nsCOMPtr<nsIWebBrowserChrome> browserChrome(do_GetInterface(mTreeOwner));
nsresult rv = NS_ERROR_FAILURE;
if(browserChrome) {
nsCOMPtr<nsITextToSubURI> textToSubURI = do_GetService(NS_ITEXTTOSUBURI_CONTRACTID, &rv);
if (NS_FAILED(rv)) return rv;
PRUnichar *uStr;
nsString aSpec(aURLSpec);
PRInt32 pos = aSpec.FindChar(':');
nsAutoString scheme;
static const char kMailToURI[] = "mailto";
// If the scheme is mailtourl then should not convert from a document charset
if ((pos == (PRInt32)(sizeof kMailToURI - 1)) && (aSpec.Left(scheme, pos) != -1) &&
scheme.EqualsIgnoreCase(kMailToURI)) {
// use UTF-8 instead and apply URL escape.
rv = textToSubURI->UnEscapeAndConvert("UTF-8",NS_ConvertUCS2toUTF8(aURLSpec).get(), &uStr);
}
else {
// use doc charset instead and apply URL escape.
nsCOMPtr<nsIPresShell> presShell;
nsCOMPtr<nsIDocument> doc;
nsDocShell::GetPresShell(getter_AddRefs(presShell));
NS_ENSURE_TRUE(presShell, NS_ERROR_FAILURE);
presShell->GetDocument(getter_AddRefs(doc));
NS_ENSURE_TRUE(doc, NS_ERROR_FAILURE);
nsAutoString charset;
NS_ENSURE_SUCCESS(doc->GetDocumentCharacterSet(charset), NS_ERROR_FAILURE);
rv = textToSubURI->UnEscapeAndConvert(NS_ConvertUCS2toUTF8(charset.get()).get(),
NS_ConvertUCS2toUTF8(aURLSpec).get(), &uStr);
}
if (NS_SUCCEEDED(rv)) {
rv = browserChrome->SetStatus(nsIWebBrowserChrome::STATUS_LINK, uStr);
nsMemory::Free(uStr);
}
}
return rv;
}
NS_IMETHODIMP
nsWebShell::GetLinkState(const char* aLinkURI, nsLinkState& aState)
{
aState = eLinkState_Unvisited;
if(mGlobalHistory)
{
PRBool isVisited;
NS_ENSURE_SUCCESS(mGlobalHistory->IsVisited(aLinkURI, &isVisited),
NS_ERROR_FAILURE);
if (isVisited)
aState = eLinkState_Visited;
}
return NS_OK;
}
//----------------------------------------------------------------------
nsresult nsWebShell::EndPageLoad(nsIWebProgress *aProgress,
nsIChannel* channel,
nsresult aStatus)
{
nsresult rv = NS_OK;
if(!channel)
return NS_ERROR_NULL_POINTER;
nsCOMPtr<nsIURI> url;
rv = channel->GetURI(getter_AddRefs(url));
if (NS_FAILED(rv)) return rv;
// clean up reload state for meta charset
if(eCharsetReloadRequested == mCharsetReloadState)
mCharsetReloadState = eCharsetReloadStopOrigional;
else
mCharsetReloadState = eCharsetReloadInit;
//
// one of many safeguards that prevent death and destruction if
// someone is so very very rude as to bring this window down
// during this load handler.
//
nsCOMPtr<nsIWebShell> kungFuDeathGrip(this);
nsDocShell::EndPageLoad(aProgress, channel, aStatus);
//
// If the page load failed, then deal with the error condition...
// Errors are handled as follows:
// 1. Check to see if it a file not found error.
// 2. Send the URI to a keyword server (if enabled)
// 3. If the error was DNS failure, then add www and .com to the URI
// (if appropriate).
// 4. Throw an error dialog box...
//
if(url && NS_FAILED(aStatus)) {
if (aStatus == NS_ERROR_FILE_NOT_FOUND) {
nsCOMPtr<nsIPrompt> prompter;
nsCOMPtr<nsIStringBundle> stringBundle;
GetPromptAndStringBundle(getter_AddRefs(prompter),
getter_AddRefs(stringBundle));
if (stringBundle && prompter) {
nsXPIDLString messageStr;
nsresult rv = stringBundle->GetStringFromName(NS_LITERAL_STRING("fileNotFound").get(),
getter_Copies(messageStr));
if (NS_SUCCEEDED(rv) && messageStr) {
nsXPIDLCString spec;
url->GetPath(getter_Copies(spec));
PRUnichar *msg = nsTextFormatter::smprintf(messageStr, (const char*)spec);
if (!msg) return NS_ERROR_OUT_OF_MEMORY;
prompter->Alert(nsnull, msg);
nsTextFormatter::smprintf_free(msg);
}
}
return NS_OK;
}
nsXPIDLCString host;
rv = url->GetHost(getter_Copies(host));
if (!host) {
return rv;
}
CBufDescriptor buf((const char *)host, PR_TRUE, PL_strlen(host) + 1);
nsCAutoString hostStr(buf);
PRInt32 dotLoc = hostStr.FindChar('.');
nsXPIDLCString scheme;
url->GetScheme(getter_Copies(scheme));
PRUint32 schemeLen = PL_strlen((const char*)scheme);
CBufDescriptor schemeBuf((const char*)scheme, PR_TRUE, schemeLen+1, schemeLen);
nsCAutoString schemeStr(schemeBuf);
//
// First try sending the request to a keyword server (if enabled)...
//
if(aStatus == NS_ERROR_UNKNOWN_HOST ||
aStatus == NS_ERROR_CONNECTION_REFUSED ||
aStatus == NS_ERROR_NET_TIMEOUT)
{
PRBool keywordsEnabled = PR_FALSE;
if(mPrefs) {
rv = mPrefs->GetBoolPref("keyword.enabled", &keywordsEnabled);
if (NS_FAILED(rv)) return rv;
}
// we should only perform a keyword search under the following conditions:
// (0) Pref keyword.enabled is true
// (1) the url scheme is http (or https)
// (2) the url does not have a protocol scheme
// If we don't enforce such a policy, then we end up doing keyword searchs on urls
// we don't intend like imap, file, mailbox, etc. This could lead to a security
// problem where we send data to the keyword server that we shouldn't be.
// Someone needs to clean up keywords in general so we can determine on a per url basis
// if we want keywords enabled...this is just a bandaid...
if (keywordsEnabled && !schemeStr.IsEmpty() &&
(schemeStr.Find("http") != 0)) {
keywordsEnabled = PR_FALSE;
}
if(keywordsEnabled && (-1 == dotLoc)) {
// only send non-qualified hosts to the keyword server
nsAutoString keywordSpec; keywordSpec.AssignWithConversion("keyword:");
keywordSpec.Append(NS_ConvertUTF8toUCS2(host));
return LoadURI(keywordSpec.get(), LOAD_FLAGS_NONE);
} // end keywordsEnabled
}
//
// Next, try rewriting the URI using our www.*.com trick
//
if(aStatus == NS_ERROR_UNKNOWN_HOST) {
// Try our www.*.com trick.
nsCAutoString retryHost;
if(schemeStr.Find("http") == 0) {
if(-1 == dotLoc) {
retryHost = "www.";
retryHost += hostStr;
retryHost += ".com";
} else {
PRInt32 hostLen = hostStr.Length();
if(((hostLen - dotLoc) == 3) || ((hostLen - dotLoc) == 4)) {
retryHost = "www.";
retryHost += hostStr;
}
}
}
if(!retryHost.IsEmpty()) {
// This seems evil, since it is modifying the original URL
rv = url->SetHost(retryHost.get());
if (NS_FAILED(rv)) return rv;
rv = url->GetSpec(getter_Copies(host));
if (NS_FAILED(rv)) return rv;
// reload the url
return LoadURI(NS_ConvertASCIItoUCS2(host).get(), LOAD_FLAGS_NONE);
} // retry
}
//
// Well, none of the URI rewriting tricks worked :-(
// It is time to throw an error dialog box, and be done with it...
//
// Doc failed to load because the host was not found.
if(aStatus == NS_ERROR_UNKNOWN_HOST) {
// throw a DNS failure dialog
nsCOMPtr<nsIPrompt> prompter;
nsCOMPtr<nsIStringBundle> stringBundle;
rv = GetPromptAndStringBundle(getter_AddRefs(prompter),
getter_AddRefs(stringBundle));
if (!stringBundle) {
return rv;
}
nsXPIDLString messageStr;
rv = stringBundle->GetStringFromName(NS_LITERAL_STRING("dnsNotFound").get(),
getter_Copies(messageStr));
if (NS_FAILED(rv)) return rv;
if (host) {
PRUnichar *msg = nsTextFormatter::smprintf(messageStr, (const char*)host);
if (!msg) return NS_ERROR_OUT_OF_MEMORY;
prompter->Alert(nsnull, msg);
nsTextFormatter::smprintf_free(msg);
}
}
//
// Doc failed to load because we couldn't connect to the server.
// throw a connection failure dialog
//
else if(aStatus == NS_ERROR_CONNECTION_REFUSED) {
PRInt32 port = -1;
rv = url->GetPort(&port);
if (NS_FAILED(rv)) return rv;
nsCOMPtr<nsIPrompt> prompter;
nsCOMPtr<nsIStringBundle> stringBundle;
rv = GetPromptAndStringBundle(getter_AddRefs(prompter),
getter_AddRefs(stringBundle));
if (!stringBundle) {
return rv;
}
nsXPIDLString messageStr;
rv = stringBundle->GetStringFromName(NS_LITERAL_STRING("connectionFailure").get(),
getter_Copies(messageStr));
if (NS_FAILED(rv)) return rv;
// build up the host:port string.
nsCAutoString combo(host);
if (port > 0) {
combo.Append(':');
combo.AppendInt(port);
}
PRUnichar *msg = nsTextFormatter::smprintf(messageStr, combo.get());
if (!msg) return NS_ERROR_OUT_OF_MEMORY;
prompter->Alert(nsnull, msg);
nsTextFormatter::smprintf_free(msg);
}
//
// Doc failed to load because the socket function timed out.
// throw a timeout dialog
//
else if(aStatus == NS_ERROR_NET_TIMEOUT) {
nsCOMPtr<nsIPrompt> prompter;
nsCOMPtr<nsIStringBundle> stringBundle;
rv = GetPromptAndStringBundle(getter_AddRefs(prompter),
getter_AddRefs(stringBundle));
if (!stringBundle) {
return rv;
}
nsXPIDLString messageStr;
rv = stringBundle->GetStringFromName(NS_LITERAL_STRING("netTimeout").get(),
getter_Copies(messageStr));
if (NS_FAILED(rv)) return rv;
PRUnichar *msg = nsTextFormatter::smprintf(messageStr, (const char*)host);
if (!msg) return NS_ERROR_OUT_OF_MEMORY;
prompter->Alert(nsnull, msg);
nsTextFormatter::smprintf_free(msg);
} // end NS_ERROR_NET_TIMEOUT
else if (aStatus == NS_ERROR_DOCUMENT_NOT_CACHED) {
/* A document that was requested to be fetched *only* from
* the cache is not in cache. May be this is one of those
* postdata results. Throw a dialog to the user,
* saying that the page has expired from cache and ask if
* they wish to refetch the page from the net.
*/
nsCOMPtr<nsIPrompt> prompter;
PRBool repost;
nsCOMPtr<nsIStringBundle> stringBundle;
GetPromptAndStringBundle(getter_AddRefs(prompter),
getter_AddRefs(stringBundle));
if (stringBundle && prompter) {
nsXPIDLString messageStr;
nsresult rv = stringBundle->GetStringFromName(NS_LITERAL_STRING("repost").get(),
getter_Copies(messageStr));
if (NS_SUCCEEDED(rv) && messageStr) {
prompter->Confirm(nsnull, messageStr, &repost);
/* If the user pressed cancel in the dialog,
* return failure. Don't try to load the page with out
* the post data.
*/
if (!repost)
return NS_OK;
// The user wants to repost the data to the server.
// If the page was loaded due to a back/forward/go
// operation, update the session history index.
// This is similar to the updating done in
// nsDocShell::OnNewURI() for regular pages
nsCOMPtr<nsISHistory> rootSH=mSessionHistory;
if (!mSessionHistory) {
nsCOMPtr<nsIDocShellTreeItem> root;
//Get the root docshell
GetSameTypeRootTreeItem(getter_AddRefs(root));
if (root) {
// QI root to nsIWebNavigation
nsCOMPtr<nsIWebNavigation> rootAsWebnav(do_QueryInterface(root));
if (rootAsWebnav) {
// Get the handle to SH from the root docshell
rootAsWebnav->GetSessionHistory(getter_AddRefs(rootSH));
}
}
} // mSessionHistory
if (rootSH && (mLoadType & LOAD_CMD_HISTORY)) {
nsCOMPtr<nsISHistoryInternal> shInternal(do_QueryInterface(rootSH));
if (shInternal)
shInternal->UpdateIndex();
}
/* The user does want to repost the data to the server.
* Initiate a new load again.
*/
/* Get the postdata if any from the channel */
nsCOMPtr<nsIInputStream> inputStream;
nsCOMPtr<nsIURI> referrer;
if (channel) {
nsCOMPtr<nsIHttpChannel> httpChannel(do_QueryInterface(channel));
if(httpChannel) {
httpChannel->GetReferrer(getter_AddRefs(referrer));
httpChannel->GetUploadStream(getter_AddRefs(inputStream));
}
}
nsCOMPtr<nsISeekableStream> postDataSeekable(do_QueryInterface(inputStream));
if (postDataSeekable)
{
postDataSeekable->Seek(nsISeekableStream::NS_SEEK_SET, 0);
}
InternalLoad(url, // URI
referrer, // Refering URI
nsnull, // Owner
PR_TRUE, // Inherit owner
nsnull, // No window target
inputStream, // Post data stream
nsnull, // No headers stream
LOAD_RELOAD_BYPASS_PROXY_AND_CACHE,// Load type
nsnull); // No SHEntry
}
}
}
} // if we have a host
return NS_OK;
}
//
// Routines for selection and clipboard
//
#ifdef XP_MAC
#pragma mark -
#endif
nsresult
nsWebShell::GetControllerForCommand ( const nsAReadableString & inCommand, nsIController** outController )
{
NS_ENSURE_ARG_POINTER(outController);
*outController = nsnull;
nsresult rv = NS_ERROR_FAILURE;
nsCOMPtr<nsPIDOMWindow> window ( do_QueryInterface(mScriptGlobal) );
if ( window ) {
nsCOMPtr<nsIFocusController> focusController;
rv = window->GetRootFocusController ( getter_AddRefs(focusController) );
if ( focusController )
rv = focusController->GetControllerForCommand ( inCommand, outController );
} // if window
return rv;
} // GetControllerForCommand
nsresult
nsWebShell::IsCommandEnabled ( const nsAReadableString & inCommand, PRBool* outEnabled )
{
NS_ENSURE_ARG_POINTER(outEnabled);
*outEnabled = PR_FALSE;
nsresult rv = NS_ERROR_FAILURE;
nsCOMPtr<nsIController> controller;
rv = GetControllerForCommand ( inCommand, getter_AddRefs(controller) );
if ( controller )
rv = controller->IsCommandEnabled(inCommand, outEnabled);
return rv;
}
nsresult
nsWebShell::DoCommand ( const nsAReadableString & inCommand )
{
nsresult rv = NS_ERROR_FAILURE;
nsCOMPtr<nsIController> controller;
rv = GetControllerForCommand ( inCommand, getter_AddRefs(controller) );
if ( controller )
rv = controller->DoCommand(inCommand);
return rv;
}
NS_IMETHODIMP
nsWebShell::CanCutSelection(PRBool* aResult)
{
return IsCommandEnabled ( NS_LITERAL_STRING("cmd_cut"), aResult );
}
NS_IMETHODIMP
nsWebShell::CanCopySelection(PRBool* aResult)
{
return IsCommandEnabled ( NS_LITERAL_STRING("cmd_copy"), aResult );
}
NS_IMETHODIMP
nsWebShell::CanCopyLinkLocation(PRBool* aResult)
{
return IsCommandEnabled ( NS_LITERAL_STRING("cmd_copyLink"), aResult );
}
NS_IMETHODIMP
nsWebShell::CanCopyImageLocation(PRBool* aResult)
{
return IsCommandEnabled ( NS_LITERAL_STRING("cmd_copyImageLocation"),
aResult );
}
NS_IMETHODIMP
nsWebShell::CanCopyImageContents(PRBool* aResult)
{
return IsCommandEnabled ( NS_LITERAL_STRING("cmd_copyImageContents"),
aResult );
}
NS_IMETHODIMP
nsWebShell::CanPaste(PRBool* aResult)
{
return IsCommandEnabled ( NS_LITERAL_STRING("cmd_paste"), aResult );
}
NS_IMETHODIMP
nsWebShell::CutSelection(void)
{
return DoCommand ( NS_LITERAL_STRING("cmd_cut") );
}
NS_IMETHODIMP
nsWebShell::CopySelection(void)
{
return DoCommand ( NS_LITERAL_STRING("cmd_copy") );
}
NS_IMETHODIMP
nsWebShell::CopyLinkLocation(void)
{
return DoCommand ( NS_LITERAL_STRING("cmd_copyLink") );
}
NS_IMETHODIMP
nsWebShell::CopyImageLocation(void)
{
return DoCommand ( NS_LITERAL_STRING("cmd_copyImageLocation") );
}
NS_IMETHODIMP
nsWebShell::CopyImageContents(void)
{
return DoCommand ( NS_LITERAL_STRING("cmd_copyImageContents") );
}
NS_IMETHODIMP
nsWebShell::Paste(void)
{
return DoCommand ( NS_LITERAL_STRING("cmd_paste") );
}
NS_IMETHODIMP
nsWebShell::SelectAll(void)
{
return DoCommand ( NS_LITERAL_STRING("cmd_selectAll") );
}
//
// SelectNone
//
// Collapses the current selection, insertion point ends up at beginning
// of previous selection.
//
NS_IMETHODIMP
nsWebShell::SelectNone(void)
{
return DoCommand ( NS_LITERAL_STRING("cmd_selectNone") );
}
//----------------------------------------------------
NS_IMETHODIMP
nsWebShell::FindNext(const PRUnichar * aSearchStr, PRBool aMatchCase, PRBool aSearchDown, PRBool &aIsFound)
{
return NS_ERROR_FAILURE;
}
#ifdef XP_MAC
#pragma mark -
#endif
//*****************************************************************************
// nsWebShell::nsIBaseWindow
//*****************************************************************************
NS_IMETHODIMP nsWebShell::Create()
{
// Remember the current thread (in current and forseeable implementations,
// it'll just be the unique UI thread)
//
// Since this call must be made on the UI thread, we know the Event Queue
// will be associated with the current thread...
//
mThread = PR_GetCurrentThread();
WEB_TRACE(WEB_TRACE_CALLS,
("nsWebShell::Init: this=%p", this));
// HACK....force the uri loader to give us a load cookie for this webshell...then get it's
// doc loader and store it...as more of the docshell lands, we'll be able to get rid
// of this hack...
nsCOMPtr<nsIURILoader> uriLoader = do_GetService(NS_URI_LOADER_CONTRACTID);
uriLoader->GetDocumentLoaderForContext(NS_STATIC_CAST( nsISupports*, (nsIWebShell *) this), &mDocLoader);
// Set the webshell as the default IContentViewerContainer for the loader...
mDocLoader->SetContainer(NS_STATIC_CAST(nsIContentViewerContainer*, (nsIWebShell*)this));
return nsDocShell::Create();
}
NS_IMETHODIMP nsWebShell::Destroy()
{
nsDocShell::Destroy();
SetContainer(nsnull);
return NS_OK;
}
NS_IMETHODIMP nsWebShell::SetPositionAndSize(PRInt32 x, PRInt32 y, PRInt32 cx,
PRInt32 cy, PRBool fRepaint)
{
mBounds.SetRect(x, y, cx, cy);
return nsDocShell::SetPositionAndSize(x, y, cx, cy, fRepaint);
}
NS_IMETHODIMP nsWebShell::GetPositionAndSize(PRInt32* x, PRInt32* y,
PRInt32* cx, PRInt32* cy)
{
if(x)
*x = mBounds.x;
if(y)
*y = mBounds.y;
if(cx)
*cx = mBounds.width;
if(cy)
*cy = mBounds.height;
return NS_OK;
}
#ifdef DEBUG
unsigned long nsWebShell::gNumberOfWebShells = 0;
#endif
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