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gecko-dev/docshell/base/nsWebShell.cpp
dougt%netscape.com 0d2808c511 Create a new xpcom obsolete library (and component library). 
Moved nsFileSpec and related classes into this obsolete library.
  Moved nsRegistry and related libreg functionality into the obsolete library.

Updated many callers using the obsolete nsFile spec to use nsIFile and Necko to do file IO.

Combined the following DLLs (source -> dest)
  uriloader -> docshell
  shistory -> docshell
  jsurl -> jsdom
  gkview -> gklayout

Moved nsAdapterEnumerator out of xpcom/ds and into mailnews, since they're the only consumer

Modifed the xpt_link tool so that you can specify a �only include� cid list that can mask CID�s that you are not interested in.

Added build options:
Prevent the building of xpinstall (--disable-xpinstall)
Prevent the building js component loader (--disable-jsloader)
A build option to only build a single profile (--enable-single-profile)
A build flag to only built the required xpfe components (--disable-xpfe-components).

Removal or hiding of unused functions and classes including nsEscape*, nsDequeIterator, nsRecyclingAllocatorImpl, nsDiscriminatedUnion, nsOpaqueKey, nsCRT::strlen, NS_NewCommandLineService

Bug 194240, r/sr = darin, alec.
2003-03-15 01:04:32 +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 "nsIContentViewer.h"
#include "nsIDocumentViewer.h"
#include "nsIMarkupDocumentViewer.h"
#include "nsIClipboardCommands.h"
#include "nsILinkHandler.h"
#include "nsIStreamListener.h"
#include "nsIPrompt.h"
#include "nsNetUtil.h"
#include "nsIDNSService.h"
#include "nsISocketProvider.h"
#include "nsIRefreshURI.h"
#include "nsIScriptGlobalObject.h"
#include "nsIScriptGlobalObjectOwner.h"
#include "nsIDOMEvent.h"
#include "nsIPresContext.h"
#include "nsIComponentManager.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 "nsIPluginManager.h"
#include "nsCDefaultURIFixup.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 "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 "nsPICommandUpdater.h"
#include "nsIController.h"
#include "nsIFocusController.h"
#include "nsGUIEvent.h"
#include "nsISHistoryInternal.h"
#include "nsIHttpChannel.h"
#include "nsIUploadChannel.h"
#include "nsISeekableStream.h"
#include "nsILocaleService.h"
#include "nsIStringBundle.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(kSimpleURICID, NS_SIMPLEURI_CID);
//----------------------------------------------------------------------
//----------------------------------------------------------------------
// Class IID's
static NS_DEFINE_IID(kEventQueueServiceCID, NS_EVENTQUEUESERVICE_CID);
static NS_DEFINE_CID(kCDOMRangeCID, NS_RANGE_CID);
//----------------------------------------------------------------------
static PRBool
IsOffline()
{
PRBool offline = PR_TRUE;
nsCOMPtr<nsIIOService> ios(do_GetIOService());
if (ios)
ios->GetOffline(&offline);
return offline;
}
//----------------------------------------------------------------------
// 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
mThread = nsnull;
InitFrameData();
mItemType = typeContent;
mCharsetReloadState = eCharsetReloadInit;
}
nsWebShell::~nsWebShell()
{
Destroy();
// Stop any pending document loads and destroy the loader...
if (mDocLoader) {
mDocLoader->Stop();
mDocLoader->SetContainer(nsnull);
mDocLoader->Destroy();
mDocLoader = nsnull;
}
// 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);
}
nsresult
nsWebShell::EnsureCommandHandler()
{
if (!mCommandManager)
{
mCommandManager = do_CreateInstance("@mozilla.org/embedcomp/command-manager;1");
if (!mCommandManager) return NS_ERROR_OUT_OF_MEMORY;
nsCOMPtr<nsPICommandUpdater> commandUpdater = do_QueryInterface(mCommandManager);
if (!commandUpdater) return NS_ERROR_FAILURE;
nsCOMPtr<nsIDOMWindow> domWindow = do_GetInterface(NS_STATIC_CAST(nsIInterfaceRequestor *, this));
nsresult rv = commandUpdater->Init(domWindow);
NS_ASSERTION(NS_SUCCEEDED(rv), "Initting command manager failed");
}
return mCommandManager ? NS_OK : NS_ERROR_FAILURE;
}
NS_IMPL_ADDREF_INHERITED(nsWebShell, nsDocShell)
NS_IMPL_RELEASE_INHERITED(nsWebShell, nsDocShell)
NS_INTERFACE_MAP_BEGIN(nsWebShell)
NS_INTERFACE_MAP_ENTRY(nsIWebShell)
NS_INTERFACE_MAP_ENTRY(nsIWebShellServices)
NS_INTERFACE_MAP_ENTRY(nsIWebShellContainer)
NS_INTERFACE_MAP_ENTRY(nsILinkHandler)
NS_INTERFACE_MAP_ENTRY(nsIClipboardCommands)
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;
}
else if(aIID.Equals(NS_GET_IID(nsICommandManager)))
{
NS_ENSURE_SUCCESS(EnsureCommandHandler(), NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(mCommandManager->QueryInterface(NS_GET_IID(nsICommandManager),
aInstancePtr), NS_ERROR_FAILURE);
return NS_OK;
}
if (!*aInstancePtr || NS_FAILED(rv))
return nsDocShell::GetInterface(aIID,aInstancePtr);
else
return rv;
}
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;
}
nsEventStatus PR_CALLBACK
nsWebShell::HandleEvent(nsGUIEvent *aEvent)
{
return nsEventStatus_eIgnore;
}
/**
* Document Load methods
*/
NS_IMETHODIMP
nsWebShell::GetDocumentLoader(nsIDocumentLoader*& aResult)
{
aResult = mDocLoader;
if (!mDocLoader)
return NS_ERROR_FAILURE;
NS_ADDREF(aResult);
return NS_OK;
}
//----------------------------------------------------------------------
// Web Shell Services API
NS_IMETHODIMP
nsWebShell::LoadDocument(const char* aURL,
const char* aCharset,
PRInt32 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)
{
PRInt32 hint;
muDV->GetHintCharacterSetSource(&hint);
if( aSource > hint )
{
muDV->SetHintCharacterSet(NS_ConvertASCIItoUCS2(aCharset).get());
muDV->SetHintCharacterSetSource(aSource);
if(eCharsetReloadRequested != mCharsetReloadState)
{
mCharsetReloadState = eCharsetReloadRequested;
LoadURI(NS_ConvertASCIItoUCS2(aURL).get(), // URI string
LOAD_FLAGS_NONE, // Load flags
nsnull, // Refering URI
nsnull, // Post data stream
nsnull); // Header stream
}
}
}
}
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,
PRInt32 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)
{
PRInt32 hint;
muDV->GetHintCharacterSetSource(&hint);
if( aSource > hint )
{
muDV->SetHintCharacterSet(NS_ConvertASCIItoUCS2(aCharset).get());
muDV->SetHintCharacterSetSource(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, nsIURI* aURI,
const PRUnichar* aTargetSpec, nsIInputStream* aPostDataStream = 0,
nsIInputStream* aHeadersDataStream = 0);
~OnLinkClickEvent();
void HandleEvent() {
mHandler->OnLinkClickSync(mContent, mVerb, mURI,
mTargetSpec.get(), mPostDataStream,
mHeadersDataStream,
nsnull, nsnull);
}
nsWebShell* mHandler;
nsCOMPtr<nsIURI> mURI;
nsString mTargetSpec;
nsCOMPtr<nsIInputStream> mPostDataStream;
nsCOMPtr<nsIInputStream> mHeadersDataStream;
nsCOMPtr<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,
nsIURI* aURI,
const PRUnichar* aTargetSpec,
nsIInputStream* aPostDataStream,
nsIInputStream* aHeadersDataStream)
{
mHandler = aHandler;
NS_ADDREF(aHandler);
mURI = aURI;
mTargetSpec.Assign(aTargetSpec);
mPostDataStream = aPostDataStream;
mHeadersDataStream = aHeadersDataStream;
mContent = aContent;
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(mHandler);
}
//----------------------------------------
NS_IMETHODIMP
nsWebShell::OnLinkClick(nsIContent* aContent,
nsLinkVerb aVerb,
nsIURI* aURI,
const PRUnichar* aTargetSpec,
nsIInputStream* aPostDataStream,
nsIInputStream* aHeadersDataStream)
{
OnLinkClickEvent* ev;
nsresult rv = NS_OK;
ev = new OnLinkClickEvent(this, aContent, aVerb, aURI,
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;
}
NS_IMETHODIMP
nsWebShell::OnLinkClickSync(nsIContent *aContent,
nsLinkVerb aVerb,
nsIURI* aURI,
const PRUnichar* aTargetSpec,
nsIInputStream* aPostDataStream,
nsIInputStream* aHeadersDataStream,
nsIDocShell** aDocShell,
nsIRequest** aRequest)
{
nsresult rv;
nsAutoString target(aTargetSpec);
// Initialize the DocShell / Request
if (aDocShell) {
*aDocShell = nsnull;
}
if (aRequest) {
*aRequest = nsnull;
}
switch(aVerb) {
case eLinkVerb_New:
target.Assign(NS_LITERAL_STRING("_blank"));
// Fall into replace case
case eLinkVerb_Undefined:
// Fall through, this seems like the most reasonable action
case eLinkVerb_Replace:
{
return InternalLoad(aURI, // 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
PR_TRUE, // first party site
aDocShell, // DocShell out-param
aRequest); // Request out-param
}
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");
return NS_ERROR_UNEXPECTED;
}
}
NS_IMETHODIMP
nsWebShell::OnOverLink(nsIContent* aContent,
nsIURI* aURI,
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;
// use url origin charset to unescape the URL
nsCAutoString charset;
rv = aURI->GetOriginCharset(charset);
NS_ENSURE_SUCCESS(rv, rv);
nsCAutoString spec;
rv = aURI->GetSpec(spec);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoString uStr;
rv = textToSubURI->UnEscapeURIForUI(charset, spec, uStr);
if (NS_SUCCEEDED(rv))
rv = browserChrome->SetStatus(nsIWebBrowserChrome::STATUS_LINK, uStr.get());
}
return rv;
}
NS_IMETHODIMP
nsWebShell::OnLeaveLink()
{
nsCOMPtr<nsIWebBrowserChrome> browserChrome(do_GetInterface(mTreeOwner));
nsresult rv = NS_ERROR_FAILURE;
if (browserChrome) {
rv = browserChrome->SetStatus(nsIWebBrowserChrome::STATUS_LINK,
NS_LITERAL_STRING("").get());
}
return rv;
}
nsresult
nsWebShell::NormalizeURI(nsACString& aURLSpec)
{
nsIURI *uri = nsnull;
nsCAutoString scheme;
nsresult rv = mIOService->ExtractScheme(aURLSpec, scheme);
if (NS_FAILED(rv)) return rv;
// keep tempUri up here to keep it in scope
nsCOMPtr<nsIURI> tempUri;
// used to avoid extra work later
PRBool clearUri(PR_TRUE);
if (scheme.Equals(NS_LITERAL_CSTRING("http"))) {
if (mCachedHttpUrl)
rv = mCachedHttpUrl->SetSpec(aURLSpec);
else
rv = NS_NewURI(getter_AddRefs(mCachedHttpUrl), aURLSpec);
uri = mCachedHttpUrl;
}
else if (scheme.Equals(NS_LITERAL_CSTRING("https"))) {
if (mCachedHttpsUrl)
rv = mCachedHttpsUrl->SetSpec(aURLSpec);
else
rv = NS_NewURI(getter_AddRefs(mCachedHttpsUrl), aURLSpec);
uri = mCachedHttpsUrl;
}
else if (scheme.Equals(NS_LITERAL_CSTRING("ftp"))) {
if (mCachedFtpUrl)
rv = mCachedFtpUrl->SetSpec(aURLSpec);
else
rv = NS_NewURI(getter_AddRefs(mCachedFtpUrl), aURLSpec);
uri = mCachedFtpUrl;
} else {
rv = NS_NewURI(getter_AddRefs(tempUri), aURLSpec);
uri = tempUri;
clearUri = PR_FALSE;
}
// covers all above failures
if (NS_FAILED(rv)) return rv;
rv = uri->GetSpec(aURLSpec);
// clear out the old spec, for security reasons - old data should
// not be floating around in cached URIs!
// (but avoid doing extra work if we're just destroying the uri)
if (clearUri)
uri->SetSpec(NS_LITERAL_CSTRING(""));
return rv;
}
NS_IMETHODIMP
nsWebShell::GetLinkState(const nsACString& aLinkURI, nsLinkState& aState)
{
aState = eLinkState_Unvisited;
// no history, leave state unchanged
if (!mGlobalHistory)
return NS_OK;
// default to the given URI
nsCAutoString resolvedPath(aLinkURI);
nsresult rv;
// get the cached IO service
if (!mIOService)
mIOService = do_GetService(NS_IOSERVICE_CONTRACTID, &rv);
NormalizeURI(resolvedPath);
PRBool isVisited;
NS_ENSURE_SUCCESS(mGlobalHistory->IsVisited(resolvedPath.get(), &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);
// Test if this is the top frame or a subframe
PRBool isTopFrame = PR_TRUE;
nsCOMPtr<nsIDocShellTreeItem> targetParentTreeItem;
rv = GetSameTypeParent(getter_AddRefs(targetParentTreeItem));
if (NS_SUCCEEDED(rv) && targetParentTreeItem)
{
isTopFrame = PR_FALSE;
}
//
// 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) {
DisplayLoadError(aStatus, url, nsnull);
return NS_OK;
}
// Create the fixup object if necessary
if (!mURIFixup)
{
mURIFixup = do_GetService(NS_URIFIXUP_CONTRACTID);
}
if (mURIFixup)
{
//
// Try and make an alternative URI from the old one
//
nsCOMPtr<nsIURI> newURI;
nsCAutoString oldSpec;
url->GetSpec(oldSpec);
//
// First try keyword fixup
//
if (aStatus == NS_ERROR_UNKNOWN_HOST ||
aStatus == NS_ERROR_CONNECTION_REFUSED ||
aStatus == NS_ERROR_NET_TIMEOUT ||
aStatus == NS_ERROR_NET_RESET)
{
PRBool keywordsEnabled = PR_FALSE;
if(mPrefs) {
rv = mPrefs->GetBoolPref("keyword.enabled", &keywordsEnabled);
if (NS_FAILED(rv)) return rv;
}
nsCAutoString host;
url->GetHost(host);
nsCAutoString scheme;
url->GetScheme(scheme);
PRInt32 dotLoc = host.FindChar('.');
// 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 && !scheme.IsEmpty() &&
(scheme.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));
NS_NewURI(getter_AddRefs(newURI), keywordSpec, nsnull);
} // end keywordsEnabled
}
//
// Now try change the address, e.g. turn http://foo into http://www.foo.com
//
if (aStatus == NS_ERROR_UNKNOWN_HOST ||
aStatus == NS_ERROR_NET_RESET)
{
PRBool doCreateAlternate = PR_TRUE;
// Skip fixup for anything except a normal document load operation on
// the topframe.
if (mLoadType != LOAD_NORMAL || !isTopFrame)
{
doCreateAlternate = PR_FALSE;
}
else
{
// Test if keyword lookup produced a new URI or not
if (newURI)
{
PRBool sameURI = PR_FALSE;
url->Equals(newURI, &sameURI);
if (!sameURI)
{
// Keyword lookup made a new URI so no need to try an
// alternate one.
doCreateAlternate = PR_FALSE;
}
}
}
if (doCreateAlternate)
{
newURI = nsnull;
mURIFixup->CreateFixupURI(NS_ConvertUTF8toUCS2(oldSpec),
nsIURIFixup::FIXUP_FLAGS_MAKE_ALTERNATE_URI, getter_AddRefs(newURI));
}
}
//
// Did we make a new URI that is different to the old one? If so load it.
//
if (newURI)
{
// Make sure the new URI is different from the old one, otherwise
// there's little point trying to load it again.
PRBool sameURI = PR_FALSE;
url->Equals(newURI, &sameURI);
if (!sameURI)
{
nsCAutoString newSpec;
newURI->GetSpec(newSpec);
NS_ConvertUTF8toUCS2 newSpecW(newSpec);
// This seems evil, since it is modifying the original URL
rv = url->SetSpec(newSpec);
if (NS_FAILED(rv)) return rv;
return LoadURI(newSpecW.get(), // URI string
LOAD_FLAGS_NONE, // Load flags
nsnull, // Refering URI
nsnull, // Post data stream
nsnull); // Headers stream
}
}
}
//
// Well, fixup didn't work :-(
// It is time to throw an error dialog box, and be done with it...
//
// Errors to be shown only on top-level frames
if ((aStatus == NS_ERROR_UNKNOWN_HOST ||
aStatus == NS_ERROR_CONNECTION_REFUSED ||
aStatus == NS_ERROR_UNKNOWN_PROXY_HOST ||
aStatus == NS_ERROR_PROXY_CONNECTION_REFUSED) &&
(isTopFrame || mUseErrorPages)) {
DisplayLoadError(aStatus, url, nsnull);
}
// Errors to be shown for any frame
else if (aStatus == NS_ERROR_NET_TIMEOUT ||
aStatus == NS_ERROR_REDIRECT_LOOP ||
aStatus == NS_ERROR_UNKNOWN_SOCKET_TYPE ||
aStatus == NS_ERROR_NET_INTERRUPT ||
aStatus == NS_ERROR_NET_RESET) {
DisplayLoadError(aStatus, url, nsnull);
}
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. Do this only
* if the request is a form post.
*/
nsCOMPtr<nsIHttpChannel> httpChannel(do_QueryInterface(channel));
nsCAutoString method;
if (httpChannel)
httpChannel->GetRequestMethod(method);
if (method.Equals("POST") && !IsOffline()) {
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));
nsCOMPtr<nsIUploadChannel> uploadChannel(do_QueryInterface(channel));
if (uploadChannel) {
uploadChannel->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
PR_TRUE, // first party site
nsnull, // No nsIDocShell
nsnull); // No nsIRequest
}
}
}
else {
DisplayLoadError(aStatus, url, nsnull);
}
}
} // if we have a host
return NS_OK;
}
//
// Routines for selection and clipboard
//
#ifdef XP_MAC
#pragma mark -
#endif
nsresult
nsWebShell::GetControllerForCommand ( const char * 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 char * 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 char * 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 ( "cmd_cut", aResult );
}
NS_IMETHODIMP
nsWebShell::CanCopySelection(PRBool* aResult)
{
return IsCommandEnabled ( "cmd_copy", aResult );
}
NS_IMETHODIMP
nsWebShell::CanCopyLinkLocation(PRBool* aResult)
{
return IsCommandEnabled ( "cmd_copyLink", aResult );
}
NS_IMETHODIMP
nsWebShell::CanCopyImageLocation(PRBool* aResult)
{
return IsCommandEnabled ( "cmd_copyImageLocation",
aResult );
}
NS_IMETHODIMP
nsWebShell::CanCopyImageContents(PRBool* aResult)
{
return IsCommandEnabled ( "cmd_copyImageContents",
aResult );
}
NS_IMETHODIMP
nsWebShell::CanPaste(PRBool* aResult)
{
return IsCommandEnabled ( "cmd_paste", aResult );
}
NS_IMETHODIMP
nsWebShell::CutSelection(void)
{
return DoCommand ( "cmd_cut" );
}
NS_IMETHODIMP
nsWebShell::CopySelection(void)
{
return DoCommand ( "cmd_copy" );
}
NS_IMETHODIMP
nsWebShell::CopyLinkLocation(void)
{
return DoCommand ( "cmd_copyLink" );
}
NS_IMETHODIMP
nsWebShell::CopyImageLocation(void)
{
return DoCommand ( "cmd_copyImageLocation" );
}
NS_IMETHODIMP
nsWebShell::CopyImageContents(void)
{
return DoCommand ( "cmd_copyImageContents" );
}
NS_IMETHODIMP
nsWebShell::Paste(void)
{
return DoCommand ( "cmd_paste" );
}
NS_IMETHODIMP
nsWebShell::SelectAll(void)
{
return DoCommand ( "cmd_selectAll" );
}
//
// SelectNone
//
// Collapses the current selection, insertion point ends up at beginning
// of previous selection.
//
NS_IMETHODIMP
nsWebShell::SelectNone(void)
{
return DoCommand ( "cmd_selectNone" );
}
#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(nsIWebShell*, this),
getter_AddRefs(mDocLoader));
nsCOMPtr<nsIContentViewerContainer> shellAsContainer = do_QueryInterface(NS_STATIC_CAST(nsIWebShell*, this));
// Set the webshell as the default IContentViewerContainer for the loader...
mDocLoader->SetContainer(shellAsContainer);
return nsDocShell::Create();
}
NS_IMETHODIMP nsWebShell::Destroy()
{
nsDocShell::Destroy();
SetContainer(nsnull);
return NS_OK;
}
#ifdef DEBUG
unsigned long nsWebShell::gNumberOfWebShells = 0;
#endif
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