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gecko-dev/docshell/base/nsWebShell.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vi:tw=2:ts=2:et:sw=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 Communicator client 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>
* Pierre Phaneuf <pp@ludusdesign.com>
*/
#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 "nsIWebBrowserChrome.h"
#include "nsIInterfaceRequestor.h"
#include "nsIDocumentLoader.h"
#include "nsIDocumentLoaderObserver.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 "nsIProgressEventSink.h"
#include "nsDOMEvent.h"
#include "nsIPresContext.h"
#include "nsIComponentManager.h"
#include "nsIServiceManager.h"
#include "nsIEventQueueService.h"
#include "nsCRT.h"
#include "nsVoidArray.h"
#include "nsString.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 "nsXPIDLString.h"
#include "nsDOMError.h"
#include "nsIDOMHTMLElement.h"
#include "nsIDOMHTMLDocument.h"
#include "nsLayoutCID.h"
#include "nsIDOMRange.h"
#include "nsIURIContentListener.h"
#include "nsIDOMDocument.h"
#include "nsTimer.h"
#include "nsIBaseWindow.h"
#include "nsIDocShell.h"
#include "nsIDocShellTreeItem.h"
#include "nsIDocShellTreeNode.h"
#include "nsIDocShellTreeOwner.h"
#include "nsCURILoader.h"
#include "nsIDOMWindow.h"
#include "nsEscape.h"
#include "nsIPlatformCharset.h"
#include "nsICharsetConverterManager.h"
#include "nsISocketTransportService.h"
#include "nsILayoutHistoryState.h"
#include "nsIHTTPChannel.h" // add this to the ick include list...we need it to QI for post data interface
#include "nsHTTPEnums.h"
#include "nsILocaleService.h"
#include "nsIStringBundle.h"
static NS_DEFINE_CID(kLocaleServiceCID, NS_LOCALESERVICE_CID);
static NS_DEFINE_CID(kPrefServiceCID, NS_PREF_CID);
static NS_DEFINE_CID(kCStringBundleServiceCID, NS_STRINGBUNDLESERVICE_CID);
static NS_DEFINE_CID(kPlatformCharsetCID, NS_PLATFORMCHARSET_CID);
static NS_DEFINE_CID(kCharsetConverterManagerCID, NS_ICHARSETCONVERTERMANAGER_CID);
#include "nsIIOService.h"
#include "nsIURL.h"
#include "nsIProtocolHandler.h"
//XXX for nsIPostData; this is wrong; we shouldn't see the nsIDocument type
#include "nsIDocument.h"
//#define DOCSHELL_LOAD 1
#ifdef DEBUG
#undef NOISY_LINKS
#undef NOISY_WEBSHELL_LEAKS
#else
#undef NOISY_LINKS
#undef NOISY_WEBSHELL_LEAKS
#endif
#define NOISY_WEBSHELL_LEAKS
#ifdef NOISY_WEBSHELL_LEAKS
#undef DETECT_WEBSHELL_LEAKS
#define DETECT_WEBSHELL_LEAKS
#endif
#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);
//----------------------------------------------------------------------
typedef enum {
eCharsetReloadInit,
eCharsetReloadRequested,
eCharsetReloadStopOrigional
} eCharsetReloadState;
class nsWebShell : public nsDocShell,
public nsIWebShell,
public nsIWebShellContainer,
public nsIWebShellServices,
public nsILinkHandler,
public nsIDocumentLoaderObserver,
public nsIProgressEventSink, // should go away (nsIDocLoaderObs)
public nsIURIContentListener,
public nsIClipboardCommands
{
public:
nsWebShell();
virtual ~nsWebShell();
NS_DECL_AND_IMPL_ZEROING_OPERATOR_NEW
// nsISupports
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_NSIURICONTENTLISTENER
// nsIInterfaceRequestor
NS_DECL_NSIINTERFACEREQUESTOR
NS_DECL_NSIDOCUMENTLOADEROBSERVER
NS_IMETHOD SetupNewViewer(nsIContentViewer* aViewer);
// nsIContentViewerContainer
NS_IMETHOD Embed(nsIContentViewer* aDocViewer,
const char* aCommand,
nsISupports* aExtraInfo);
// nsIWebShell
NS_IMETHOD SetContainer(nsIWebShellContainer* aContainer);
NS_IMETHOD GetContainer(nsIWebShellContainer*& aResult);
NS_IMETHOD GetTopLevelWindow(nsIWebShellContainer** aWebShellWindow);
NS_IMETHOD GetRootWebShell(nsIWebShell*& aResult);
NS_IMETHOD SetParent(nsIWebShell* aParent);
NS_IMETHOD GetParent(nsIWebShell*& aParent);
NS_IMETHOD GetReferrer(nsIURI **aReferrer);
// Document load api's
NS_IMETHOD GetDocumentLoader(nsIDocumentLoader*& aResult);
NS_IMETHOD LoadURL(const PRUnichar *aURLSpec,
const char* aCommand,
nsIInputStream* aPostDataStream=nsnull,
PRBool aModifyHistory=PR_TRUE,
nsLoadFlags aType = nsIChannel::LOAD_NORMAL,
nsISupports * aHistoryState=nsnull,
const PRUnichar* aReferrer=nsnull,
const char * aWindowTarget = nsnull);
NS_IMETHOD LoadURI(nsIURI * aUri,
const char * aCommand,
nsIInputStream* aPostDataStream=nsnull,
PRBool aModifyHistory=PR_TRUE,
nsLoadFlags aType = nsIChannel::LOAD_NORMAL,
nsISupports * aHistoryState=nsnull,
const PRUnichar* aReferrer=nsnull,
const char * aWindowTarget = nsnull);
NS_IMETHOD SessionHistoryInternalLoadURL(const PRUnichar *aURLSpec,
nsLoadFlags aType, nsISupports * aHistoryState, const PRUnichar* aReferrer);
NS_IMETHOD GetCanGoBack(PRBool* aCanGoBack);
NS_IMETHOD GetCanGoForward(PRBool* aCanGoForward);
NS_IMETHOD GoBack();
NS_IMETHOD GoForward();
NS_IMETHOD LoadURI(const PRUnichar* aURI);
NS_IMETHOD InternalLoad(nsIURI* aURI, nsIURI* aReferrer,
const char* aWindowTarget, nsIInputStream* aPostData, loadType aLoadType);
void SetReferrer(const PRUnichar* aReferrer);
// History api's
NS_IMETHOD GoTo(PRInt32 aHistoryIndex);
NS_IMETHOD GetHistoryLength(PRInt32& aResult);
NS_IMETHOD GetHistoryIndex(PRInt32& aResult);
NS_IMETHOD GetURL(PRInt32 aHistoryIndex, const PRUnichar** aURLResult);
// nsIWebShellContainer
NS_IMETHOD SetHistoryState(nsISupports* aLayoutHistoryState);
NS_IMETHOD FireUnloadEvent(void);
// nsIWebShellServices
NS_IMETHOD LoadDocument(const char* aURL,
const char* aCharset= nsnull ,
nsCharsetSource aSource = kCharsetUninitialized);
NS_IMETHOD ReloadDocument(const char* aCharset= nsnull ,
nsCharsetSource aSource = kCharsetUninitialized);
NS_IMETHOD StopDocumentLoad(void);
NS_IMETHOD SetRendering(PRBool aRender);
// nsILinkHandler
NS_IMETHOD OnLinkClick(nsIContent* aContent,
nsLinkVerb aVerb,
const PRUnichar* aURLSpec,
const PRUnichar* aTargetSpec,
nsIInputStream* aPostDataStream = 0);
NS_IMETHOD OnOverLink(nsIContent* aContent,
const PRUnichar* aURLSpec,
const PRUnichar* aTargetSpec);
NS_IMETHOD GetLinkState(const PRUnichar* aURLSpec, nsLinkState& aState);
// nsIProgressEventSink
NS_DECL_NSIPROGRESSEVENTSINK
// nsIClipboardCommands
NS_IMETHOD CanCutSelection (PRBool* aResult);
NS_IMETHOD CanCopySelection (PRBool* aResult);
NS_IMETHOD CanPasteSelection(PRBool* aResult);
NS_IMETHOD CutSelection (void);
NS_IMETHOD CopySelection (void);
NS_IMETHOD PasteSelection(void);
NS_IMETHOD SelectAll(void);
NS_IMETHOD SelectNone(void);
NS_IMETHOD FindNext(const PRUnichar * aSearchStr, PRBool aMatchCase, PRBool aSearchDown, PRBool &aIsFound);
// nsIBaseWindow
NS_IMETHOD Create();
NS_IMETHOD Destroy();
NS_IMETHOD SetPositionAndSize(PRInt32 x, PRInt32 y, PRInt32 cx, PRInt32 cy,
PRBool fRepaint);
NS_IMETHOD GetPositionAndSize(PRInt32* x, PRInt32* y, PRInt32* cx,
PRInt32* cy);
// nsIDocShell
NS_IMETHOD SetDocument(nsIDOMDocument *aDOMDoc, nsIDOMElement *aRootNode);
// nsWebShell
nsIEventQueue* GetEventQueue(void);
void HandleLinkClickEvent(nsIContent *aContent,
nsLinkVerb aVerb,
const PRUnichar* aURLSpec,
const PRUnichar* aTargetSpec,
nsIInputStream* aPostDataStream = 0);
void ShowHistory();
static nsEventStatus PR_CALLBACK HandleEvent(nsGUIEvent *aEvent);
NS_IMETHOD SetSessionHistory(nsISessionHistory * aSHist);
NS_IMETHOD GetSessionHistory(nsISessionHistory *& aResult);
NS_IMETHOD SetIsInSHist(PRBool aIsFrame);
NS_IMETHOD GetIsInSHist(PRBool& aIsFrame);
NS_IMETHOD SetURL(const PRUnichar* aURL);
protected:
void GetRootWebShellEvenIfChrome(nsIWebShell** aResult);
void InitFrameData();
nsresult CheckForTrailingSlash(nsIURI* aURL);
nsresult InitDialogVars(void);
nsIEventQueue* mThreadEventQueue;
nsIWebShellContainer* mContainer;
nsIDocumentLoader* mDocLoader;
nsCOMPtr<nsIPrompt> mPrompter;
nsCOMPtr<nsIStringBundle> mStringBundle;
nsString mDefaultCharacterSet;
nsVoidArray mHistory;
PRInt32 mHistoryIndex;
PRBool mFiredUnloadEvent;
nsIGlobalHistory* mHistoryService;
nsISessionHistory * mSHist;
nsRect mBounds;
PRPackedBool mIsInSHist;
PRPackedBool mFailedToLoadHistoryService;
eCharsetReloadState mCharsetReloadState;
nsISupports* mHistoryState; // Weak reference. Session history owns this.
nsresult FireUnloadForChildren();
nsresult DoLoadURL(nsIURI * aUri,
const char* aCommand,
nsIInputStream* aPostDataStream,
nsLoadFlags aType,
const PRUnichar* aReferrer,
const char * aWindowTarget,
PRBool aKickOffLoad = PR_TRUE);
nsresult PrepareToLoadURI(nsIURI * aUri,
nsIInputStream * aPostStream,
PRBool aModifyHistory,
nsLoadFlags aType,
nsISupports * aHistoryState,
const PRUnichar * aReferrer);
nsresult CreateViewer(nsIChannel* aChannel,
const char* aContentType,
const char* aCommand,
nsIStreamListener** aResult);
PRBool mProcessedEndDocumentLoad;
MOZ_TIMER_DECLARE(mTotalTime)
#ifdef DETECT_WEBSHELL_LEAKS
private:
// We're counting the number of |nsWebShells| to help find leaks
static unsigned long gNumberOfWebShells;
public:
static unsigned long TotalWebShellsInExistence() { return gNumberOfWebShells; }
#endif
};
#ifdef DETECT_WEBSHELL_LEAKS
unsigned long nsWebShell::gNumberOfWebShells = 0;
extern "C" NS_WEB
unsigned long
NS_TotalWebShellsInExistence()
{
return nsWebShell::TotalWebShellsInExistence();
}
#endif
//----------------------------------------------------------------------
// Class IID's
static NS_DEFINE_IID(kEventQueueServiceCID, NS_EVENTQUEUESERVICE_CID);
static NS_DEFINE_IID(kChildCID, NS_CHILD_CID);
static NS_DEFINE_IID(kDocLoaderServiceCID, NS_DOCUMENTLOADER_SERVICE_CID);
static NS_DEFINE_IID(kWebShellCID, NS_WEB_SHELL_CID);
// IID's
static NS_DEFINE_IID(kIContentViewerContainerIID,
NS_ICONTENT_VIEWER_CONTAINER_IID);
static NS_DEFINE_IID(kIProgressEventSinkIID, NS_IPROGRESSEVENTSINK_IID);
static NS_DEFINE_IID(kIDocumentLoaderIID, NS_IDOCUMENTLOADER_IID);
static NS_DEFINE_IID(kIFactoryIID, NS_IFACTORY_IID);
static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
static NS_DEFINE_IID(kRefreshURIIID, NS_IREFRESHURI_IID);
static NS_DEFINE_IID(kIWidgetIID, NS_IWIDGET_IID);
static NS_DEFINE_IID(kIPluginManagerIID, NS_IPLUGINMANAGER_IID);
static NS_DEFINE_IID(kIPluginHostIID, NS_IPLUGINHOST_IID);
static NS_DEFINE_IID(kCPluginManagerCID, NS_PLUGINMANAGER_CID);
static NS_DEFINE_IID(kIDocumentViewerIID, NS_IDOCUMENT_VIEWER_IID);
static NS_DEFINE_IID(kITimerCallbackIID, NS_ITIMERCALLBACK_IID);
static NS_DEFINE_IID(kIWebShellContainerIID, NS_IWEB_SHELL_CONTAINER_IID);
static NS_DEFINE_IID(kIClipboardCommandsIID, NS_ICLIPBOARDCOMMANDS_IID);
static NS_DEFINE_IID(kIEventQueueServiceIID, NS_IEVENTQUEUESERVICE_IID);
static NS_DEFINE_IID(kISessionHistoryIID, NS_ISESSIONHISTORY_IID);
static NS_DEFINE_IID(kIDOMHTMLDocumentIID, NS_IDOMHTMLDOCUMENT_IID);
static NS_DEFINE_CID(kCDOMRangeCID, NS_RANGE_CID);
// XXX not sure
static NS_DEFINE_IID(kILinkHandlerIID, NS_ILINKHANDLER_IID);
//----------------------------------------------------------------------
// Note: operator new zeros our memory
nsWebShell::nsWebShell() : nsDocShell()
{
#ifdef DETECT_WEBSHELL_LEAKS
// We're counting the number of |nsWebShells| to help find leaks
++gNumberOfWebShells;
#endif
#ifdef NOISY_WEBSHELL_LEAKS
printf("WEBSHELL+ = %ld\n", gNumberOfWebShells);
#endif
NS_INIT_REFCNT();
mHistoryIndex = -1;
mThreadEventQueue = nsnull;
InitFrameData();
mItemType = typeContent;
mSHist = nsnull;
mIsInSHist = PR_FALSE;
mFailedToLoadHistoryService = PR_FALSE;
mDefaultCharacterSet = "";
mProcessedEndDocumentLoad = PR_FALSE;
mCharsetReloadState = eCharsetReloadInit;
mHistoryService = nsnull;
mHistoryState = nsnull;
mFiredUnloadEvent = PR_FALSE;
mBounds.SetRect(0, 0, 0, 0);
}
nsWebShell::~nsWebShell()
{
Destroy();
if (nsnull != mHistoryService) {
nsServiceManager::ReleaseService(kGlobalHistoryCID, mHistoryService);
mHistoryService = nsnull;
}
// Stop any pending document loads and destroy the loader...
if (nsnull != mDocLoader) {
mDocLoader->Stop();
mDocLoader->RemoveObserver((nsIDocumentLoaderObserver*)this);
mDocLoader->SetContainer(nsnull);
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
NS_IF_RELEASE(mSHist);
NS_IF_RELEASE(mThreadEventQueue);
mContentViewer=nsnull;
mDeviceContext=nsnull;
NS_IF_RELEASE(mContainer);
if (mScriptGlobal) {
mScriptGlobal->SetDocShell(nsnull);
mScriptGlobal = nsnull;
}
if (mScriptContext) {
mScriptContext->SetOwner(nsnull);
mScriptContext = nsnull;
}
InitFrameData();
// Free up history memory
PRInt32 i, n = mHistory.Count();
for (i = 0; i < n; i++) {
nsString* s = (nsString*) mHistory.ElementAt(i);
delete s;
}
#ifdef DETECT_WEBSHELL_LEAKS
// We're counting the number of |nsWebShells| to help find leaks
--gNumberOfWebShells;
#endif
#ifdef NOISY_WEBSHELL_LEAKS
printf("WEBSHELL- = %ld\n", gNumberOfWebShells);
#endif
}
void nsWebShell::InitFrameData()
{
SetMarginWidth(-1);
SetMarginHeight(-1);
}
nsresult
nsWebShell::FireUnloadForChildren()
{
nsresult rv = NS_OK;
PRInt32 i, n = mChildren.Count();
for (i = 0; i < n; i++) {
nsIDocShell* shell = (nsIDocShell*) mChildren.ElementAt(i);
nsCOMPtr<nsIWebShell> webShell(do_QueryInterface(shell));
rv = webShell->FireUnloadEvent();
}
return rv;
}
NS_IMETHODIMP
nsWebShell::FireUnloadEvent()
{
nsresult rv = NS_OK;
if (mScriptGlobal) {
nsIDocumentViewer* docViewer;
if (mContentViewer && NS_SUCCEEDED(mContentViewer->QueryInterface(kIDocumentViewerIID, (void**)&docViewer))) {
nsIPresContext *presContext;
if (NS_SUCCEEDED(docViewer->GetPresContext(presContext))) {
nsEventStatus status = nsEventStatus_eIgnore;
nsMouseEvent event;
event.eventStructType = NS_EVENT;
event.message = NS_PAGE_UNLOAD;
rv = mScriptGlobal->HandleDOMEvent(presContext, &event, nsnull, NS_EVENT_FLAG_INIT, &status);
NS_RELEASE(presContext);
}
NS_RELEASE(docViewer);
}
}
//Fire child unloads now while our data is intact.
rv = FireUnloadForChildren();
mFiredUnloadEvent = PR_TRUE;
return rv;
}
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(nsIDocumentLoaderObserver)
NS_INTERFACE_MAP_ENTRY(nsIProgressEventSink)
NS_INTERFACE_MAP_ENTRY(nsIWebShellContainer)
NS_INTERFACE_MAP_ENTRY(nsILinkHandler)
NS_INTERFACE_MAP_ENTRY(nsIClipboardCommands)
NS_INTERFACE_MAP_ENTRY(nsIURIContentListener)
#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;
}
#ifndef DOCSHELL_LOAD
else if (aIID.Equals(NS_GET_IID(nsIURIContentListener)))
{
*aInstancePtr = NS_STATIC_CAST(nsIURIContentListener*, this);
NS_ADDREF((nsISupports*)*aInstancePtr);
return NS_OK;
}
#endif /* DOCSHELL_LOAD */
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(nsIDOMWindow)))
{
NS_ENSURE_SUCCESS(EnsureScriptEnvironment(), NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(mScriptGlobal->QueryInterface(NS_GET_IID(nsIDOMWindow),
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 SetupNewViewer(aContentViewer);
}
NS_IMETHODIMP
nsWebShell::SetContainer(nsIWebShellContainer* aContainer)
{
NS_IF_RELEASE(mContainer);
mContainer = aContainer;
NS_IF_ADDREF(mContainer);
// uri dispatching change.....if you set a container for a webshell
// and that container is a content listener itself....then use
// it as our parent container.
nsresult rv = NS_OK;
nsCOMPtr<nsIURIContentListener> contentListener = do_QueryInterface(mContainer, &rv);
if (NS_SUCCEEDED(rv) && contentListener)
SetParentContentListener(contentListener);
// if the container is getting set to null, then our parent must be going away
// so clear out our knowledge of the content listener represented by the container
if (!aContainer)
SetParentContentListener(nsnull);
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;
}
NS_IMETHODIMP
nsWebShell::SetSessionHistory(nsISessionHistory* aSHist)
{
NS_IF_RELEASE(mSHist);
mSHist = aSHist;
NS_IF_ADDREF(aSHist);
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::GetSessionHistory(nsISessionHistory *& aResult)
{
aResult = mSHist;
NS_IF_ADDREF(mSHist);
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), aReferrer, nsnull);
}
NS_IMETHODIMP
nsWebShell::SetURL(const PRUnichar* aURL)
{
nsCOMPtr<nsIURI> uri;
NS_ENSURE_SUCCESS(NS_NewURI(getter_AddRefs(uri), aURL, nsnull),
NS_ERROR_FAILURE);
SetCurrentURI(uri);
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::GetIsInSHist(PRBool& aResult)
{
aResult = mIsInSHist;
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::SetIsInSHist(PRBool aIsInSHist)
{
mIsInSHist = aIsInSHist;
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;
}
static PRBool EqualBaseURLs(nsIURI* url1, nsIURI* url2)
{
nsXPIDLCString spec1;
nsXPIDLCString spec2;
char * anchor1 = nsnull, * anchor2=nsnull;
PRBool rv = PR_FALSE;
if (url1 && url2) {
// XXX We need to make these strcmps case insensitive.
url1->GetSpec(getter_Copies(spec1));
url2->GetSpec(getter_Copies(spec2));
/* Don't look at the ref-part */
anchor1 = PL_strrchr(spec1, '#');
anchor2 = PL_strrchr(spec2, '#');
if (anchor1)
*anchor1 = '\0';
if (anchor2)
*anchor2 = '\0';
if (0 == PL_strcmp(spec1,spec2)) {
rv = PR_TRUE;
}
} // url1 && url2
return rv;
}
nsresult
nsWebShell::DoLoadURL(nsIURI * aUri,
const char* aCommand,
nsIInputStream* aPostDataStream,
nsLoadFlags aType,
const PRUnichar* aReferrer,
const char * aWindowTarget,
PRBool aKickOffLoad)
{
if (!aUri)
return NS_ERROR_NULL_POINTER;
nsXPIDLCString urlSpec;
nsresult rv = NS_OK;
rv = aUri->GetSpec(getter_Copies(urlSpec));
if (NS_FAILED(rv)) return rv;
// If it's a normal reload that uses the cache, look at the destination anchor
// and see if it's an element within the current document
// We don't have a reload loadtype yet in necko. So, check for just history
// loadtype
if ((aType == nsISessionHistory::LOAD_HISTORY || aType == nsIChannel::LOAD_NORMAL) && (nsnull != mContentViewer) &&
(nsnull == aPostDataStream))
{
nsCOMPtr<nsIDocumentViewer> docViewer;
if (NS_SUCCEEDED(mContentViewer->QueryInterface(kIDocumentViewerIID,
getter_AddRefs(docViewer))))
{
// Get the document object
nsCOMPtr<nsIDocument> doc;
docViewer->GetDocument(*getter_AddRefs(doc));
// Get the URL for the document
nsCOMPtr<nsIURI> docURL = getter_AddRefs(doc->GetDocumentURL());
if (aUri && docURL && EqualBaseURLs(docURL, aUri))
{
// See if there's a destination anchor
nsXPIDLCString ref;
nsCOMPtr<nsIURL> aUrl = do_QueryInterface(aUri);
if (aUrl)
rv = aUrl->GetRef(getter_Copies(ref));
nsCOMPtr<nsIPresShell> presShell;
rv = docViewer->GetPresShell(*getter_AddRefs(presShell));
if (NS_SUCCEEDED(rv) && presShell)
{
/* Pass OnStartDocument notifications to the docloaderobserver
* so that urlbar, forward/back buttons will
* behave properly when going to named anchors
*/
nsIInterfaceRequestor * interfaceRequestor = NS_STATIC_CAST(nsIInterfaceRequestor *, this);
nsCOMPtr<nsIChannel> dummyChannel;
// creating a channel is expensive...don't create it unless we know we have to
// so move the creation down into each of the if clauses...
if (nsnull != (const char *) ref)
{
rv = NS_OpenURI(getter_AddRefs(dummyChannel), aUri, nsnull, nsnull,
interfaceRequestor);
if (NS_FAILED(rv)) return rv;
if (!mProcessedEndDocumentLoad)
rv = OnStartDocumentLoad(mDocLoader, aUri, "load");
// Go to the anchor in the current document
rv = presShell->GoToAnchor(nsAutoString(ref));
// Set the URL & referrer if the anchor was successfully visited
if (NS_SUCCEEDED(rv))
{
SetCurrentURI(aUri);
SetReferrer(aReferrer);
}
// Pass on status of scrolling/anchor visit to docloaderobserver
if (!mProcessedEndDocumentLoad)
{
rv = OnEndDocumentLoad(mDocLoader, dummyChannel, rv);
}
return rv;
}
else if (aType == nsISessionHistory::LOAD_HISTORY)
{
rv = NS_OpenURI(getter_AddRefs(dummyChannel), aUri, nsnull, nsnull,
interfaceRequestor);
if (NS_FAILED(rv)) return rv;
rv = OnStartDocumentLoad(mDocLoader, aUri, "load");
// Go to the top of the current document
nsCOMPtr<nsIViewManager> viewMgr;
rv = presShell->GetViewManager(getter_AddRefs(viewMgr));
if (NS_SUCCEEDED(rv) && viewMgr)
{
nsIScrollableView* view;
rv = viewMgr->GetRootScrollableView(&view);
if (NS_SUCCEEDED(rv) && view)
rv = view->ScrollTo(0, 0, NS_VMREFRESH_IMMEDIATE);
if(NS_SUCCEEDED(rv))
{
SetCurrentURI(aUri);
SetReferrer(aReferrer);
}
mProcessedEndDocumentLoad = PR_FALSE;
// Pass on status of scrolling/anchor visit to docloaderobserver
rv = OnEndDocumentLoad(mDocLoader, dummyChannel, rv);
return rv;
}
}
#if 0
mProcessedEndDocumentLoad = PR_FALSE;
// Pass on status of scrolling/anchor visit to docloaderobserver
rv = OnEndDocumentLoad(mDocLoader, dummyChannel, rv);
return rv;
#endif /* 0 */
} // NS_SUCCEEDED(rv) && presShell
} // EqualBaseURLs(docURL, url)
}
}
// Stop loading the current document (if any...). This call may result in
// firing an EndLoadURL notification for the old document...
if (aKickOffLoad)
StopLoad();
mProcessedEndDocumentLoad = PR_FALSE;
/* WebShell was primarily passing the buck when it came to streamObserver.
* So, pass on the observer which is already a streamObserver to DocLoder.
*/
if (aKickOffLoad) {
#ifdef MOZ_PERF_METRICS
{
char* url;
nsresult rv = NS_OK;
rv = aUri->GetSpec(&url);
if (NS_SUCCEEDED(rv)) {
MOZ_TIMER_LOG(("*** Timing layout processes on url: '%s', webshell: %p\n", url, this));
delete [] url;
}
}
MOZ_TIMER_DEBUGLOG(("Reset and start: nsWebShell::DoLoadURL(), this=%p\n", this));
MOZ_TIMER_RESET(mTotalTime);
MOZ_TIMER_START(mTotalTime);
#endif
// Create a referrer URI
nsCOMPtr<nsIIOService> pNetService(do_GetService(kIOServiceCID));
nsCOMPtr<nsIURI> referrer;
if(aReferrer)
{
nsAutoString tempReferrer(aReferrer);
char* referrerStr = tempReferrer.ToNewCString();
pNetService->NewURI(referrerStr, nsnull, getter_AddRefs(referrer));
Recycle(referrerStr);
}
// now let's pass the channel into the uri loader
nsURILoadCommand loadCmd = nsIURILoader::viewNormal;
if(nsCRT::strcasecmp(aCommand, "view-link-click") == 0)
loadCmd = nsIURILoader::viewUserClick;
NS_ENSURE_SUCCESS(DoURILoad(aUri, referrer, loadCmd, aWindowTarget,
aPostDataStream), NS_ERROR_FAILURE);
return NS_OK;
}
return rv;
}
NS_IMETHODIMP nsWebShell::GetCanGoBack(PRBool* aCanGoBack)
{
#ifdef DOCSHELL_LOAD
return nsDocShell::GetCanGoBack(aCanGoBack);
#else /*!DOCSHELL_LOAD*/
*aCanGoBack = (mHistoryIndex - 1) > - 1 ? PR_TRUE : PR_FALSE;
return NS_OK;
#endif /*!DOCSHELL_LOAD*/
}
NS_IMETHODIMP nsWebShell::GetCanGoForward(PRBool* aCanGoForward)
{
#ifdef DOCSHELL_LOAD
return nsDocShell::GetCanGoForward(aCanGoForward);
#else /*!DOCSHELL_LOAD*/
*aCanGoForward = mHistoryIndex < mHistory.Count() - 1 ? PR_TRUE : PR_FALSE;
return NS_OK;
#endif /*!DOCSHELL_LOAD*/
}
NS_IMETHODIMP nsWebShell::GoBack()
{
#ifdef DOCSHELL_LOAD
return nsDocShell::GoBack();
#else /*!DOCSHELL_LOAD*/
NS_ENSURE_SUCCESS(GoTo(mHistoryIndex - 1), NS_ERROR_FAILURE);
return NS_OK;
#endif /*!DOCSHELL_LOAD*/
}
NS_IMETHODIMP nsWebShell::GoForward()
{
#ifdef DOCSHELL_LOAD
return nsDocShell::GoForward();
#else /*!DOCSHELL_LOAD*/
NS_ENSURE_SUCCESS(GoTo(mHistoryIndex + 1), NS_ERROR_FAILURE);
return NS_OK;
#endif /*!DOCSHELL_LOAD*/
}
NS_IMETHODIMP nsWebShell::LoadURI(const PRUnichar* aURI)
{
#ifdef DOCSHELL_LOAD
return nsDocShell::LoadURI(aURI);
#else /*!DOCSHELL_LOAD*/
return LoadURL(aURI, "view");
#endif /*!DOCSHELL_LOAD*/
}
NS_IMETHODIMP nsWebShell::InternalLoad(nsIURI* aURI, nsIURI* aReferrer,
const char* aWindowTarget, nsIInputStream* aPostData, loadType aLoadType)
{
#ifdef DOCSHELL_LOAD
return nsDocShell::InternalLoad(aURI, aReferrer, aWindowTarget, aPostData,
aLoadType);
#else /*!DOCSHELL_LOAD*/
PRBool updateHistory = PR_TRUE;
switch(aLoadType)
{
case loadHistory:
case loadReloadNormal:
case loadReloadBypassCache:
case loadReloadBypassProxy:
case loadRelaodBypassProxyAndCache:
updateHistory = PR_FALSE;
break;
default:
NS_ERROR("Need to update case");
// Fall through to a normal type of load.
case loadNormalReplace:
case loadNormal:
case loadLink:
updateHistory = PR_TRUE;
break;
}
nsXPIDLCString referrer;
if(aReferrer)
aReferrer->GetSpec(getter_Copies(referrer));
return LoadURI(aURI, "view", nsnull, updateHistory, nsIChannel::LOAD_NORMAL,
nsnull, nsAutoString(referrer).GetUnicode(), aWindowTarget);
#endif /*!DOCSHELL_LOAD*/
}
// nsIURIContentListener support
NS_IMETHODIMP nsWebShell::OnStartURIOpen(nsIURI* aURI,
const char* aWindowTarget, PRBool* aAbortOpen)
{
NS_ENSURE_SUCCESS(EnsureContentListener(), NS_ERROR_FAILURE);
return mContentListener->OnStartURIOpen(aURI, aWindowTarget, aAbortOpen);
}
NS_IMETHODIMP
nsWebShell::GetProtocolHandler(nsIURI *aURI, nsIProtocolHandler **aProtocolHandler)
{
// Farm this off to our content listener
NS_ENSURE_SUCCESS(EnsureContentListener(), NS_ERROR_FAILURE);
return mContentListener->GetProtocolHandler(aURI, aProtocolHandler);
}
NS_IMETHODIMP nsWebShell::IsPreferred(const char * aContentType,
nsURILoadCommand aCommand,
const char * aWindowTarget,
char ** aDesiredContentType,
PRBool * aCanHandleContent)
{
NS_ENSURE_SUCCESS(EnsureContentListener(), NS_ERROR_FAILURE);
return mContentListener->IsPreferred(aContentType, aCommand, aWindowTarget, aDesiredContentType,
aCanHandleContent);
}
NS_IMETHODIMP nsWebShell::CanHandleContent(const char * aContentType,
nsURILoadCommand aCommand,
const char * aWindowTarget,
char ** aDesiredContentType,
PRBool * aCanHandleContent)
{
NS_ENSURE_SUCCESS(EnsureContentListener(), NS_ERROR_FAILURE);
return mContentListener->CanHandleContent(aContentType, aCommand, aWindowTarget, aDesiredContentType,
aCanHandleContent);
}
NS_IMETHODIMP
nsWebShell::DoContent(const char * aContentType,
nsURILoadCommand aCommand,
const char * aWindowTarget,
nsIChannel * aOpenedChannel,
nsIStreamListener ** aContentHandler,
PRBool * aAbortProcess)
{
NS_ENSURE_ARG(aOpenedChannel);
nsresult rv = NS_OK;
if (aAbortProcess)
*aAbortProcess = PR_FALSE;
// determine if the channel has just been retargeted to us...
nsLoadFlags loadAttribs = 0;
aOpenedChannel->GetLoadAttributes(&loadAttribs);
// first, run any uri preparation stuff that we would have run normally
// had we gone through OpenURI
nsCOMPtr<nsIURI> aUri;
aOpenedChannel->GetURI(getter_AddRefs(aUri));
if (loadAttribs & nsIChannel::LOAD_RETARGETED_DOCUMENT_URI)
{
PrepareToLoadURI(aUri, nsnull, PR_TRUE, nsIChannel::LOAD_NORMAL, nsnull, nsnull);
// mscott: when I called DoLoadURL I found that we ran into problems because
// we currently don't have channel retargeting yet. Basically, what happens is that
// DoLoadURL calls StopBeforeRequestingURL and this cancels the current load group
// however since we can't retarget yet, we were basically canceling our very
// own load group!!! So the request would get canceled out from under us...
// after retargeting we may be able to safely call DoLoadURL.
DoLoadURL(aUri, "view", nsnull, nsIChannel::LOAD_NORMAL, nsnull, nsnull, PR_FALSE);
SetFocus(); // force focus to get set on the retargeted window...
}
OnLoadingSite(aOpenedChannel);
return CreateContentViewer(aContentType, aOpenedChannel, aContentHandler);
}
nsresult nsWebShell::PrepareToLoadURI(nsIURI * aUri,
nsIInputStream * aPostStream,
PRBool aModifyHistory,
nsLoadFlags aType,
nsISupports * aHistoryState,
const PRUnichar * aReferrer)
{
nsresult rv;
CancelRefreshURITimers();
nsXPIDLCString scheme, CUriSpec;
if (!aUri) return NS_ERROR_NULL_POINTER;
rv = aUri->GetScheme(getter_Copies(scheme));
if (NS_FAILED(rv)) return rv;
rv = aUri->GetSpec(getter_Copies(CUriSpec));
if (NS_FAILED(rv)) return rv;
nsAutoString uriSpec(CUriSpec);
nsXPIDLCString spec;
rv = aUri->GetSpec(getter_Copies(spec));
if (NS_FAILED(rv)) return rv;
nsString* url = new nsString(uriSpec);
if (aModifyHistory) {
// Discard part of history that is no longer reachable
PRInt32 i, n = mHistory.Count();
i = mHistoryIndex + 1;
while (--n >= i) {
nsString* u = (nsString*) mHistory.ElementAt(n);
delete u;
mHistory.RemoveElementAt(n);
}
// Tack on new url
mHistory.AppendElement(url);
mHistoryIndex++;
}
else {
// Replace the current history index with this URL
nsString* u = (nsString*) mHistory.ElementAt(mHistoryIndex);
if (nsnull != u) {
delete u;
}
mHistory.ReplaceElementAt(url, mHistoryIndex);
}
ShowHistory();
return rv;
}
NS_IMETHODIMP
nsWebShell::LoadURI(nsIURI * aUri,
const char * aCommand,
nsIInputStream* aPostDataStream,
PRBool aModifyHistory,
nsLoadFlags aType,
nsISupports * aHistoryState,
const PRUnichar* aReferrer,
const char * aWindowTarget)
{
nsresult rv = PrepareToLoadURI(aUri, aPostDataStream,
aModifyHistory, aType,
aHistoryState, aReferrer);
if (NS_SUCCEEDED(rv))
rv = DoLoadURL(aUri, aCommand, aPostDataStream, aType, aReferrer, aWindowTarget);
return rv;
}
NS_IMETHODIMP
nsWebShell::LoadURL(const PRUnichar *aURLSpec,
const char* aCommand,
nsIInputStream* aPostDataStream,
PRBool aModifyHistory,
nsLoadFlags aType,
nsISupports * aHistoryState,
const PRUnichar* aReferrer,
const char * aWindowTarget)
{
nsresult rv = NS_OK;
nsAutoString urlStr(aURLSpec);
nsXPIDLCString spec;
// no dice.
urlStr.Trim(" ");
nsCOMPtr<nsIURI> uri;
rv = CreateFixupURI(urlStr.GetUnicode(), getter_AddRefs(uri));
if(NS_ERROR_UNKNOWN_PROTOCOL == rv)
{
PRInt32 colon=urlStr.FindChar(':');
// we weren't able to find a protocol handler
rv = InitDialogVars();
if (NS_FAILED(rv))
return rv;
nsXPIDLString messageStr;
nsAutoString name("protocolNotFound");
rv = mStringBundle->GetStringFromName(name.GetUnicode(), getter_Copies(messageStr));
if (NS_FAILED(rv))
return rv;
NS_ASSERTION(colon != -1, "we shouldn't have gotten this far if we didn't have a colon");
// extract the scheme
nsAutoString scheme;
urlStr.Left(scheme, colon);
nsAutoString dnsMsg(scheme);
dnsMsg.Append(' ');
dnsMsg.Append(messageStr);
(void)mPrompter->Alert(dnsMsg.GetUnicode());
} // end unknown protocol
if(!uri)
return rv;
rv = uri->GetSpec(getter_Copies(spec));
if(NS_FAILED(rv))
return rv;
// Get hold of Root webshell
nsCOMPtr<nsIWebShell> root;
nsCOMPtr<nsISessionHistory> shist;
PRBool isLoadingHistory=PR_FALSE; // Is SH currently loading an entry from history?
rv = GetRootWebShell(*getter_AddRefs(root));
// Get hold of session History
if (NS_SUCCEEDED(rv) && root)
{
root->GetSessionHistory(*getter_AddRefs(shist));
}
if (shist)
shist->GetLoadingFlag(&isLoadingHistory);
/*
* Save the history state for the current index iff this loadurl() request
* is not from SH. When the request comes from SH, aModifyHistory will
* be false and nsSessionHistory.cpp takes of this.
*/
if (shist)
{
PRInt32 indix;
shist->GetCurrentIndex(&indix);
if(indix >= 0 && (aModifyHistory))
{
nsCOMPtr<nsILayoutHistoryState> historyState;
//XXX For now don't do it when we have frames
if(mChildren.Count())
{
nsCOMPtr<nsIPresShell> presShell;
GetPresShell(getter_AddRefs(presShell));
if(presShell)
rv = presShell->CaptureHistoryState(getter_AddRefs(historyState));
if(NS_SUCCEEDED(rv) && historyState)
shist->SetHistoryObjectForIndex(indix, historyState);
}
}
}
/* Set the History state object for the current page in the
* presentation shell. If it is a new page being visited,
* aHistoryState is null. If the load is coming from
* session History, it will be set to the cached history object by
* session History.
*/
SetHistoryState(aHistoryState);
/* If the current Uri is the same as the one to be loaded
* don't add it to session history. This avoids multiple
* entries for the same url in the go menu
*/
nsCOMPtr<nsIURI> currentURI;
nsresult res = GetCurrentURI(getter_AddRefs(currentURI));
if(NS_SUCCEEDED(res) && currentURI)
{
nsXPIDLCString currentUriSpec;
rv = currentURI->GetSpec(getter_Copies(currentUriSpec));
if(NS_FAILED(rv))
return rv;
nsAutoString currentURIString(currentUriSpec);
if(currentURIString.Equals(spec))
{
/* The url to be loaded is the same as the
* url already in the page. Don't add it to session history
*/
aModifyHistory = PR_FALSE;
}
}
/* Add the page to session history */
if(aModifyHistory && shist)
{
PRInt32 ret;
nsCAutoString referrer(aReferrer);
ret = shist->Add(spec, referrer, this);
}
nsCOMPtr<nsIWebShell> parent;
res = GetParent(*getter_AddRefs(parent));
nsCOMPtr<nsIURI> newURI;
if ((isLoadingHistory))
{
/* if LoadURL() got called from SH, AND If we are going "Back/Forward"
* to a frame page,SH will change the current uri to the right value
* for smoother redraw.
*/
res = GetCurrentURI(getter_AddRefs(newURI));
}
else
{
/* If the call is not from SH, use the url passed by the caller
* so that things like JS will work right. This is for bug # 1646.
* May regress in other situations.
* What a hack
*/
nsAutoString urlstr = (const char *) spec;
res = NS_NewURI(getter_AddRefs(newURI), urlstr, nsnull);
}
if(NS_SUCCEEDED(res))
{
// now that we have a uri, call the REAL LoadURI method which requires a nsIURI.
return LoadURI(newURI, aCommand, aPostDataStream, aModifyHistory, aType, aHistoryState, aReferrer, aWindowTarget);
}
return rv;
}
//----------------------------------------
NS_IMETHODIMP nsWebShell::SessionHistoryInternalLoadURL(const PRUnichar *aURLSpec,
nsLoadFlags aType, nsISupports * aHistoryState, const PRUnichar* aReferrer)
{
return LoadURL(aURLSpec, "view", nsnull, PR_FALSE, aType, aHistoryState, aReferrer);
}
// History methods
NS_IMETHODIMP
nsWebShell::GoTo(PRInt32 aHistoryIndex)
{
nsresult rv = NS_ERROR_ILLEGAL_VALUE;
if ((aHistoryIndex >= 0) &&
(aHistoryIndex < mHistory.Count())) {
nsString* s = (nsString*) mHistory.ElementAt(aHistoryIndex);
#ifdef DEBUG
printf("Goto %d\n", aHistoryIndex);
#endif
mHistoryIndex = aHistoryIndex;
ShowHistory();
nsAutoString urlSpec(*s);
// convert the uri spec into a url and then pass it to DoLoadURL
nsCOMPtr<nsIURI> uri;
rv = NS_NewURI(getter_AddRefs(uri), urlSpec, nsnull);
if (NS_FAILED(rv)) return rv;
rv = DoLoadURL(uri, // URL string
"view", // Command
nsnull, // Post Data
nsISessionHistory::LOAD_HISTORY, // the reload type
nsnull, // referrer
nsnull, // window target
PR_TRUE); // kick off load?
}
return rv;
}
NS_IMETHODIMP
nsWebShell::GetHistoryLength(PRInt32& aResult)
{
aResult = mHistory.Count();
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::GetHistoryIndex(PRInt32& aResult)
{
aResult = mHistoryIndex;
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::GetURL(PRInt32 aHistoryIndex, const PRUnichar** aURLResult)
{
nsresult rv = NS_ERROR_ILLEGAL_VALUE;
// XXX Ownership rules for the string passed back from this
// method are not XPCOM compliant. If they were correct,
// the caller would deallocate the string.
if ((aHistoryIndex >= 0) &&
(aHistoryIndex <= mHistory.Count() - 1)) {
nsString* s = (nsString*) mHistory.ElementAt(aHistoryIndex);
if (nsnull != s) {
*aURLResult = s->GetUnicode();
}
rv = NS_OK;
}
return rv;
}
void
nsWebShell::ShowHistory()
{
#if defined(NS_DEBUG)
if (WEB_LOG_TEST(gLogModule, WEB_TRACE_HISTORY)) {
PRInt32 i, n = mHistory.Count();
for (i = 0; i < n; i++) {
if (i == mHistoryIndex) {
printf("**");
}
else {
printf(" ");
}
nsString* u = (nsString*) mHistory.ElementAt(i);
fputs(*u, stdout);
printf("\n");
}
}
#endif
}
//----------------------------------------
//----------------------------------------------------------------------
// 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 )
{
nsAutoString inputCharSet(aCharset);
muDV->SetHintCharacterSet(inputCharSet.GetUnicode());
muDV->SetHintCharacterSetSource((PRInt32)aSource);
if(eCharsetReloadRequested != mCharsetReloadState)
{
mCharsetReloadState = eCharsetReloadRequested;
nsAutoString url(aURL);
LoadURI(url.GetUnicode());
}
}
}
}
return NS_OK;
}
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 )
{
nsAutoString inputCharSet(aCharset);
muDV->SetHintCharacterSet(inputCharSet.GetUnicode());
muDV->SetHintCharacterSetSource((PRInt32)aSource);
if(eCharsetReloadRequested != mCharsetReloadState)
{
mCharsetReloadState = eCharsetReloadRequested;
return Reload(reloadNormal);
}
}
}
}
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::StopDocumentLoad(void)
{
if(eCharsetReloadRequested != mCharsetReloadState)
{
Stop();
}
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::SetRendering(PRBool aRender)
{
if(eCharsetReloadRequested != mCharsetReloadState)
{
if (mContentViewer) {
mContentViewer->SetEnableRendering(aRender);
}
}
return NS_OK;
}
//----------------------------------------------------------------------
// WebShell link handling
struct OnLinkClickEvent : public PLEvent {
OnLinkClickEvent(nsWebShell* aHandler, nsIContent* aContent,
nsLinkVerb aVerb, const PRUnichar* aURLSpec,
const PRUnichar* aTargetSpec, nsIInputStream* aPostDataStream = 0);
~OnLinkClickEvent();
void HandleEvent() {
mHandler->HandleLinkClickEvent(mContent, mVerb, mURLSpec->GetUnicode(),
mTargetSpec->GetUnicode(), mPostDataStream);
}
nsWebShell* mHandler;
nsString* mURLSpec;
nsString* mTargetSpec;
nsIInputStream* mPostDataStream;
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)
{
nsIEventQueue* eventQueue;
mHandler = aHandler;
NS_ADDREF(aHandler);
mURLSpec = new nsString(aURLSpec);
mTargetSpec = new nsString(aTargetSpec);
mPostDataStream = aPostDataStream;
NS_IF_ADDREF(mPostDataStream);
mContent = aContent;
NS_IF_ADDREF(mContent);
mVerb = aVerb;
PL_InitEvent(this, nsnull,
(PLHandleEventProc) ::HandlePLEvent,
(PLDestroyEventProc) ::DestroyPLEvent);
eventQueue = aHandler->GetEventQueue();
eventQueue->PostEvent(this);
NS_RELEASE(eventQueue);
}
OnLinkClickEvent::~OnLinkClickEvent()
{
NS_IF_RELEASE(mContent);
NS_IF_RELEASE(mHandler);
NS_IF_RELEASE(mPostDataStream);
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)
{
OnLinkClickEvent* ev;
nsresult rv = NS_OK;
ev = new OnLinkClickEvent(this, aContent, aVerb, aURLSpec,
aTargetSpec, aPostDataStream);
if (nsnull == ev) {
rv = NS_ERROR_OUT_OF_MEMORY;
}
return rv;
}
nsIEventQueue* nsWebShell::GetEventQueue(void)
{
NS_PRECONDITION(nsnull != mThreadEventQueue, "EventQueue for thread is null");
NS_ADDREF(mThreadEventQueue);
return mThreadEventQueue;
}
void
nsWebShell::HandleLinkClickEvent(nsIContent *aContent,
nsLinkVerb aVerb,
const PRUnichar* aURLSpec,
const PRUnichar* aTargetSpec,
nsIInputStream* aPostDataStream)
{
nsAutoString target(aTargetSpec);
switch(aVerb) {
case eLinkVerb_New:
target.Assign("_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
nsXPIDLCString spec;
mCurrentURI->GetSpec(getter_Copies(spec));
nsAutoString specString(spec);
LoadURL(aURLSpec, "view-link-click", aPostDataStream,
PR_TRUE, nsIChannel::LOAD_NORMAL,
nsnull, specString.GetUnicode(), nsCAutoString(aTargetSpec));
}
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));
if(browserChrome)
browserChrome->SetOverLink(aURLSpec);
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::GetLinkState(const PRUnichar* aURLSpec, nsLinkState& aState)
{
aState = eLinkState_Unvisited;
nsresult rv;
// XXX: GlobalHistory is going to be moved out of the webshell into a more appropriate place.
if ((nsnull == mHistoryService) && !mFailedToLoadHistoryService) {
rv = nsServiceManager::GetService(kGlobalHistoryCID,
NS_GET_IID(nsIGlobalHistory),
(nsISupports**) &mHistoryService);
if (NS_FAILED(rv)) {
mFailedToLoadHistoryService = PR_TRUE;
}
}
if (mHistoryService) {
// XXX aURLSpec should really be a char*, not a PRUnichar*.
nsAutoString urlStr(aURLSpec);
char buf[256];
char* url = buf;
if (urlStr.Length() >= PRInt32(sizeof buf)) {
url = new char[urlStr.Length() + 1];
}
PRInt64 lastVisitDate;
if (url) {
urlStr.ToCString(url, urlStr.Length() + 1);
rv = mHistoryService->GetLastVisitDate(url, &lastVisitDate);
if (url != buf)
delete[] url;
}
else {
rv = NS_ERROR_OUT_OF_MEMORY;
}
//XXX: Moved to destructor nsServiceManager::ReleaseService(kGlobalHistoryCID, mHistoryService);
if (NS_FAILED(rv)) return rv;
// a last-visit-date of zero means we've never seen it before; so
// if it's not zero, we must've seen it.
if (! LL_IS_ZERO(lastVisitDate))
aState = eLinkState_Visited;
// XXX how to tell if eLinkState_OutOfDate?
}
return NS_OK;
}
//----------------------------------------------------------------------
NS_IMETHODIMP
nsWebShell::OnStartDocumentLoad(nsIDocumentLoader* loader,
nsIURI* aURL,
const char* aCommand)
{
nsIDocumentViewer* docViewer;
nsresult rv = NS_ERROR_FAILURE;
if ((mScriptGlobal) &&
(loader == mDocLoader)) {
if (nsnull != mContentViewer &&
NS_OK == mContentViewer->QueryInterface(kIDocumentViewerIID, (void**)&docViewer)) {
nsIPresContext *presContext;
if (NS_OK == docViewer->GetPresContext(presContext)) {
nsEventStatus status = nsEventStatus_eIgnore;
nsMouseEvent event;
event.eventStructType = NS_EVENT;
event.message = NS_PAGE_UNLOAD;
rv = mScriptGlobal->HandleDOMEvent(presContext, &event, nsnull, NS_EVENT_FLAG_INIT, &status);
NS_RELEASE(presContext);
}
NS_RELEASE(docViewer);
}
}
if (loader == mDocLoader) {
nsCOMPtr<nsIDocumentLoaderObserver> dlObserver;
if (!mDocLoaderObserver && mParent) {
/* If this is a frame (in which case it would have a parent && doesn't
* have a documentloaderObserver, get it from the rootWebShell
*/
nsCOMPtr<nsIDocShellTreeItem> rootItem;
GetSameTypeRootTreeItem(getter_AddRefs(rootItem));
nsCOMPtr<nsIDocShell> rootDocShell(do_QueryInterface(rootItem));
if (rootDocShell)
rootDocShell->GetDocLoaderObserver(getter_AddRefs(dlObserver));
}
else
{
dlObserver = do_QueryInterface(mDocLoaderObserver); // we need this to addref
}
/*
* Fire the OnStartDocumentLoad of the webshell observer
*/
if ((nsnull != mContainer) && (nsnull != dlObserver))
{
dlObserver->OnStartDocumentLoad(mDocLoader, aURL, aCommand);
}
}
return rv;
}
NS_IMETHODIMP
nsWebShell::OnEndDocumentLoad(nsIDocumentLoader* loader,
nsIChannel* channel,
nsresult aStatus)
{
#ifdef MOZ_PERF_METRICS
MOZ_TIMER_DEBUGLOG(("Stop: nsWebShell::OnEndDocumentLoad(), this=%p\n", this));
MOZ_TIMER_STOP(mTotalTime);
MOZ_TIMER_LOG(("Total (Layout + Page Load) Time (webshell=%p): ", this));
MOZ_TIMER_PRINT(mTotalTime);
#endif
nsresult rv = NS_ERROR_FAILURE;
if (!channel) {
return NS_ERROR_NULL_POINTER;
}
nsCOMPtr<nsIURI> aURL;
rv = channel->GetURI(getter_AddRefs(aURL));
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);
//if (!mProcessedEndDocumentLoad) {
if (loader == mDocLoader) {
mProcessedEndDocumentLoad = PR_TRUE;
if (mScriptGlobal && !mEODForCurrentDocument) {
nsIDocumentViewer* docViewer;
if (nsnull != mContentViewer &&
NS_OK == mContentViewer->QueryInterface(kIDocumentViewerIID, (void**)&docViewer)) {
nsIPresContext *presContext;
if (NS_OK == docViewer->GetPresContext(presContext)) {
nsEventStatus status = nsEventStatus_eIgnore;
nsMouseEvent event;
event.eventStructType = NS_EVENT;
event.message = NS_PAGE_LOAD;
rv = mScriptGlobal->HandleDOMEvent(presContext, &event, nsnull, NS_EVENT_FLAG_INIT, &status);
NS_RELEASE(presContext);
}
NS_RELEASE(docViewer);
}
}
mEODForCurrentDocument = PR_TRUE;
nsCOMPtr<nsIDocumentLoaderObserver> dlObserver;
if (!mDocLoaderObserver && mParent) {
/* If this is a frame (in which case it would have a parent && doesn't
* have a documentloaderObserver, get it from the rootWebShell
*/
nsCOMPtr<nsIDocShellTreeItem> rootItem;
GetSameTypeRootTreeItem(getter_AddRefs(rootItem));
nsCOMPtr<nsIDocShell> rootDocShell(do_QueryInterface(rootItem));
if (rootDocShell)
rootDocShell->GetDocLoaderObserver(getter_AddRefs(dlObserver));
}
else
{
/* Take care of the Trailing slash situation */
if (mSHist)
CheckForTrailingSlash(aURL);
dlObserver = do_QueryInterface(mDocLoaderObserver); // we need this to addref
}
/*
* Fire the OnEndDocumentLoad of the DocLoaderobserver
*/
if (dlObserver && (nsnull != aURL)) {
dlObserver->OnEndDocumentLoad(mDocLoader, channel, aStatus);
}
if (mDocLoader == loader && NS_FAILED(aStatus)) {
nsAutoString errorMsg;
nsXPIDLCString host;
rv = aURL->GetHost(getter_Copies(host));
if (NS_FAILED(rv)) return rv;
CBufDescriptor buf((const char *)host, PR_TRUE, PL_strlen(host) + 1);
nsCAutoString hostStr(buf);
PRInt32 dotLoc = hostStr.FindChar('.');
if (aStatus == NS_ERROR_UNKNOWN_HOST
|| aStatus == NS_ERROR_CONNECTION_REFUSED
|| aStatus == NS_ERROR_NET_TIMEOUT) {
// First see if we should throw it to the keyword server.
NS_ASSERTION(mPrefs, "the webshell's pref service wasn't initialized");
PRBool keywordsEnabled = PR_FALSE;
rv = mPrefs->GetBoolPref("keyword.enabled", &keywordsEnabled);
if (NS_FAILED(rv)) return rv;
if (keywordsEnabled && (-1 == dotLoc)) {
// only send non-qualified hosts to the keyword server
nsAutoString keywordSpec("keyword:");
keywordSpec.Append(host);
return LoadURI(keywordSpec.GetUnicode());
} // end keywordsEnabled
}
// Doc failed to load because the host was not found.
if (aStatus == NS_ERROR_UNKNOWN_HOST) {
// Try our www.*.com trick.
nsCAutoString retryHost;
nsXPIDLCString scheme;
rv = aURL->GetScheme(getter_Copies(scheme));
if (NS_FAILED(rv)) return rv;
PRUint32 schemeLen = PL_strlen((const char*)scheme);
CBufDescriptor schemeBuf((const char*)scheme, PR_TRUE, schemeLen+1, schemeLen);
nsCAutoString schemeStr(schemeBuf);
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()) {
rv = aURL->SetHost(retryHost.GetBuffer());
if (NS_FAILED(rv)) return rv;
nsXPIDLCString aSpec;
rv = aURL->GetSpec(getter_Copies(aSpec));
if (NS_FAILED(rv)) return rv;
nsAutoString newURL(aSpec);
// reload the url
return LoadURI(newURL.GetUnicode());
} // retry
// throw a DNS failure dialog
rv = InitDialogVars();
if (NS_FAILED(rv)) return rv;
nsXPIDLString messageStr;
nsAutoString name("dnsNotFound");
rv = mStringBundle->GetStringFromName(name.GetUnicode(), getter_Copies(messageStr));
if (NS_FAILED(rv)) return rv;
errorMsg.Assign(host);
errorMsg.Append(' ');
errorMsg.Append(messageStr);
(void)mPrompter->Alert(errorMsg.GetUnicode());
} else // unknown host
// Doc failed to load because we couldn't connect to the server.
if (aStatus == NS_ERROR_CONNECTION_REFUSED) {
// throw a connection failure dialog
PRInt32 port = -1;
rv = aURL->GetPort(&port);
if (NS_FAILED(rv)) return rv;
rv = InitDialogVars();
if (NS_FAILED(rv)) return rv;
nsXPIDLString messageStr;
nsAutoString name("connectionFailure");
rv = mStringBundle->GetStringFromName(name.GetUnicode(), getter_Copies(messageStr));
if (NS_FAILED(rv)) return rv;
errorMsg.Assign(messageStr);
errorMsg.Append(' ');
errorMsg.Append(host);
if (port > 0) {
errorMsg.Append(':');
errorMsg.Append(port);
}
errorMsg.Append('.');
(void)mPrompter->Alert(errorMsg.GetUnicode());
} else // end NS_ERROR_CONNECTION_REFUSED
// Doc failed to load because the socket function timed out.
if (aStatus == NS_ERROR_NET_TIMEOUT) {
// throw a timeout dialog
rv = InitDialogVars();
if (NS_FAILED(rv)) return rv;
nsXPIDLString messageStr;
nsAutoString name("netTimeout");
rv = mStringBundle->GetStringFromName(name.GetUnicode(), getter_Copies(messageStr));
if (NS_FAILED(rv)) return rv;
errorMsg.Assign(messageStr);
errorMsg.Append(' ');
errorMsg.Append(host);
errorMsg.Append('.');
(void)mPrompter->Alert(errorMsg.GetUnicode());
} // end NS_ERROR_NET_TIMEOUT
} // end mDocLoader == loader
} //!mProcessedEndDocumentLoad
else {
rv = NS_OK;
}
return rv;
}
NS_IMETHODIMP
nsWebShell::OnStartURLLoad(nsIDocumentLoader* loader,
nsIChannel* channel)
{
nsresult rv;
nsCOMPtr<nsIURI> aURL;
rv = channel->GetURI(getter_AddRefs(aURL));
if (NS_FAILED(rv)) return rv;
// Stop loading of the earlier document completely when the document url
// load starts. Now we know that this url is valid and available.
PRBool equals = PR_FALSE;
if (NS_SUCCEEDED(aURL->Equals(mCurrentURI, &equals)) && equals)
Stop();
/*
*Fire the OnStartDocumentLoad of the webshell observer
*/
if ((nsnull != mContainer) && (nsnull != mDocLoaderObserver))
{
mDocLoaderObserver->OnStartURLLoad(mDocLoader, channel);
}
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::OnProgressURLLoad(nsIDocumentLoader* loader,
nsIChannel* channel,
PRUint32 aProgress,
PRUint32 aProgressMax)
{
/*
*Fire the OnStartDocumentLoad of the webshell observer and container...
*/
if ((nsnull != mContainer) && (nsnull != mDocLoaderObserver))
{
mDocLoaderObserver->OnProgressURLLoad(mDocLoader, channel, aProgress, aProgressMax);
}
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::OnStatusURLLoad(nsIDocumentLoader* loader,
nsIChannel* channel,
nsString& aMsg)
{
/*
*Fire the OnStartDocumentLoad of the webshell observer and container...
*/
if ((nsnull != mContainer) && (nsnull != mDocLoaderObserver))
{
mDocLoaderObserver->OnStatusURLLoad(mDocLoader, channel, aMsg);
}
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::OnEndURLLoad(nsIDocumentLoader* loader,
nsIChannel* channel,
nsresult aStatus)
{
#if 0
const char* spec;
aURL->GetSpec(&spec);
printf("nsWebShell::OnEndURLLoad:%p: loader=%p url=%s status=%d\n", this, loader, spec, aStatus);
#endif
/*
*Fire the OnEndDocumentLoad of the webshell observer
*/
if ((nsnull != mContainer) && (nsnull != mDocLoaderObserver))
{
mDocLoaderObserver->OnEndURLLoad(mDocLoader, channel, aStatus);
}
return NS_OK;
}
//----------------------------------------------------------------------
/*
* There are cases where netlib does things like add a trailing slash
* to the url being retrieved. We need to watch out for such
* changes and update the currently loading url's entry in the history
* list. UpdateHistoryEntry() does this.
*
* Assumptions:
*
* 1) aURL is the URL that was inserted into the history list in LoadURL()
* 2) The load of aURL is in progress and this function is being called
* from one of the functions in nsIStreamListener implemented by nsWebShell.
*/
nsresult nsWebShell::CheckForTrailingSlash(nsIURI* aURL)
{
PRInt32 curIndex=0;
nsresult rv;
/* Get current history index and url for it */
rv = mSHist->GetCurrentIndex(&curIndex);
/* Get the url that netlib passed us */
char* spec;
aURL->GetSpec(&spec);
//Set it in session history
if (NS_SUCCEEDED(rv) && !mTitle.IsEmpty()) {
mSHist->SetTitleForIndex(curIndex, mTitle.GetUnicode());
// Replace the top most history entry with the new url
mSHist->SetURLForIndex(curIndex, spec);
}
nsCRT::free(spec);
return NS_OK;
}
//----------------------------------------------------
NS_IMETHODIMP
nsWebShell::CanCutSelection(PRBool* aResult)
{
nsresult rv = NS_OK;
if (nsnull == aResult) {
rv = NS_ERROR_NULL_POINTER;
} else {
*aResult = PR_FALSE;
}
return rv;
}
NS_IMETHODIMP
nsWebShell::CanCopySelection(PRBool* aResult)
{
nsresult rv = NS_OK;
if (nsnull == aResult) {
rv = NS_ERROR_NULL_POINTER;
} else {
*aResult = PR_FALSE;
}
return rv;
}
NS_IMETHODIMP
nsWebShell::CanPasteSelection(PRBool* aResult)
{
nsresult rv = NS_OK;
if (nsnull == aResult) {
rv = NS_ERROR_NULL_POINTER;
} else {
*aResult = PR_FALSE;
}
return rv;
}
NS_IMETHODIMP
nsWebShell::CutSelection(void)
{
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsWebShell::CopySelection(void)
{
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsWebShell::PasteSelection(void)
{
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsWebShell::SelectAll(void)
{
nsresult rv;
nsCOMPtr<nsIDocumentViewer> docViewer;
rv = mContentViewer->QueryInterface(kIDocumentViewerIID,
getter_AddRefs(docViewer));
if (NS_FAILED(rv) || !docViewer) return rv;
nsCOMPtr<nsIPresShell> presShell;
rv = docViewer->GetPresShell(*getter_AddRefs(presShell));
if (NS_FAILED(rv) || !presShell) return rv;
nsCOMPtr<nsIDOMSelection> selection;
rv = presShell->GetSelection(SELECTION_NORMAL, getter_AddRefs(selection));
if (NS_FAILED(rv) || !selection) return rv;
// Get the document object
nsCOMPtr<nsIDocument> doc;
rv = docViewer->GetDocument(*getter_AddRefs(doc));
if (NS_FAILED(rv) || !doc) return rv;
nsCOMPtr<nsIDOMHTMLDocument> htmldoc;
rv = doc->QueryInterface(kIDOMHTMLDocumentIID, (void**)&htmldoc);
if (NS_FAILED(rv) || !htmldoc) return rv;
nsCOMPtr<nsIDOMHTMLElement>bodyElement;
rv = htmldoc->GetBody(getter_AddRefs(bodyElement));
if (NS_FAILED(rv) || !bodyElement) return rv;
nsCOMPtr<nsIDOMNode>bodyNode = do_QueryInterface(bodyElement);
if (!bodyNode) return NS_ERROR_NO_INTERFACE;
#if 0
rv = selection->Collapse(bodyNode, 0);
if (NS_FAILED(rv)) return rv;
nsCOMPtr<nsIDOMRange>range;
rv = selection->GetRangeAt(0, getter_AddRefs(range));
if (NS_FAILED(rv) || !range) return rv;
#endif
rv = selection->ClearSelection();
if (NS_FAILED(rv)) return rv;
nsCOMPtr<nsIDOMRange> range;
rv = nsComponentManager::CreateInstance(kCDOMRangeCID, nsnull,
NS_GET_IID(nsIDOMRange),
getter_AddRefs(range));
rv = range->SelectNodeContents(bodyNode);
if (NS_FAILED(rv)) return rv;
rv = selection->AddRange(range);
return rv;
}
NS_IMETHODIMP
nsWebShell::SelectNone(void)
{
return NS_ERROR_FAILURE;
}
//----------------------------------------------------
NS_IMETHODIMP
nsWebShell::FindNext(const PRUnichar * aSearchStr, PRBool aMatchCase, PRBool aSearchDown, PRBool &aIsFound)
{
return NS_ERROR_FAILURE;
}
// Methods from nsIProgressEventSink
NS_IMETHODIMP
nsWebShell::OnProgress(nsIChannel* channel, nsISupports* ctxt,
PRUint32 aProgress,
PRUint32 aProgressMax)
{
if (nsnull != mDocLoaderObserver)
{
return mDocLoaderObserver->OnProgressURLLoad(
mDocLoader,
channel,
aProgress,
aProgressMax);
}
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::OnStatus(nsIChannel* channel, nsISupports* ctxt,
const PRUnichar* aMsg)
{
if (nsnull != mDocLoaderObserver)
{
nsAutoString temp(aMsg);
nsresult rv = mDocLoaderObserver->OnStatusURLLoad(
mDocLoader,
channel,
temp);
return rv;
}
return NS_OK;
}
#define DIALOG_STRING_URI "chrome://global/locale/appstrings.properties"
nsresult nsWebShell::InitDialogVars(void)
{
nsresult rv = NS_OK;
if (!mPrompter) {
// Get an nsIPrompt so we can throw dialogs.
mPrompter = do_GetInterface(NS_STATIC_CAST(nsIDocShell*, this));
}
if (!mStringBundle) {
// Get a string bundle so we can retrieve dialog strings
nsCOMPtr<nsILocale> locale;
NS_WITH_SERVICE(nsILocaleService, localeServ, kLocaleServiceCID, &rv);
if (NS_FAILED(rv)) return rv;
rv = localeServ->GetSystemLocale(getter_AddRefs(locale));
if (NS_FAILED(rv)) return rv;
NS_WITH_SERVICE(nsIStringBundleService, service, kCStringBundleServiceCID, &rv);
if (NS_FAILED(rv)) return rv;
rv = service->CreateBundle(DIALOG_STRING_URI, locale, getter_AddRefs(mStringBundle));
}
return rv;
}
//*****************************************************************************
// nsWebShell::nsIBaseWindow
//*****************************************************************************
NS_IMETHODIMP nsWebShell::Create()
{
// Cache the PL_EventQueue of the current UI thread...
//
// Since this call must be made on the UI thread, we know the Event Queue
// will be associated with the current thread...
//
nsCOMPtr<nsIEventQueueService> eventService(do_GetService(kEventQueueServiceCID));
NS_ENSURE_TRUE(eventService, NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(eventService->GetThreadEventQueue(NS_CURRENT_THREAD,
&mThreadEventQueue), NS_ERROR_FAILURE);
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_PROGID);
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));
//Register ourselves as an observer for the new doc loader
mDocLoader->AddObserver((nsIDocumentLoaderObserver*)this);
return nsDocShell::Create();
}
NS_IMETHODIMP nsWebShell::Destroy()
{
nsresult rv = NS_OK;
if (!mFiredUnloadEvent) {
//Fire unload event before we blow anything away.
rv = FireUnloadEvent();
}
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;
}
//*****************************************************************************
// nsWebShell::nsIDocShell
//*****************************************************************************
NS_IMETHODIMP nsWebShell::SetDocument(nsIDOMDocument *aDOMDoc,
nsIDOMElement *aRootNode)
{
// The tricky part is bypassing the normal load process and just putting a document into
// the webshell. This is particularly nasty, since webshells don't normally even know
// about their documents
// (1) Create a document viewer
nsCOMPtr<nsIContentViewer> documentViewer;
nsCOMPtr<nsIDocumentLoaderFactory> docFactory;
static NS_DEFINE_CID(kLayoutDocumentLoaderFactoryCID, NS_LAYOUT_DOCUMENT_LOADER_FACTORY_CID);
NS_ENSURE_SUCCESS(nsComponentManager::CreateInstance(kLayoutDocumentLoaderFactoryCID, nsnull,
NS_GET_IID(nsIDocumentLoaderFactory),
(void**)getter_AddRefs(docFactory)),
NS_ERROR_FAILURE);
nsCOMPtr<nsIDocument> doc = do_QueryInterface(aDOMDoc);
if (!doc) { return NS_ERROR_NULL_POINTER; }
NS_ENSURE_SUCCESS(docFactory->CreateInstanceForDocument(NS_STATIC_CAST(nsIContentViewerContainer*, (nsIWebShell*)this),
doc,
"view",
getter_AddRefs(documentViewer)),
NS_ERROR_FAILURE);
// (2) Feed the webshell to the content viewer
NS_ENSURE_SUCCESS(documentViewer->SetContainer((nsIWebShell*)this), NS_ERROR_FAILURE);
// (3) Tell the content viewer container to embed the content viewer.
// (This step causes everything to be set up for an initial flow.)
NS_ENSURE_SUCCESS(SetupNewViewer(documentViewer), NS_ERROR_FAILURE);
// XXX: It would be great to get rid of this dummy channel!
const nsAutoString uriString = "about:blank";
nsCOMPtr<nsIURI> uri;
NS_ENSURE_SUCCESS(NS_NewURI(getter_AddRefs(uri), uriString), NS_ERROR_FAILURE);
if (!uri) { return NS_ERROR_OUT_OF_MEMORY; }
nsCOMPtr<nsIChannel> dummyChannel;
NS_ENSURE_SUCCESS(NS_OpenURI(getter_AddRefs(dummyChannel), uri, nsnull), NS_ERROR_FAILURE);
// (4) fire start document load notification
nsCOMPtr<nsIStreamListener> outStreamListener; // a valid pointer is required for the returned stream listener
// XXX: warning: magic cookie! should get string "view delayedContentLoad"
// from somewhere, maybe nsIHTMLDocument?
NS_ENSURE_SUCCESS(doc->StartDocumentLoad("view delayedContentLoad", dummyChannel, nsnull, NS_STATIC_CAST(nsIContentViewerContainer*, (nsIWebShell*)this),
getter_AddRefs(outStreamListener)),
NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(OnStartDocumentLoad(mDocLoader, uri, "load"), NS_ERROR_FAILURE);
// (5) hook up the document and its content
nsCOMPtr<nsIContent> rootContent = do_QueryInterface(aRootNode);
if (!doc) { return NS_ERROR_OUT_OF_MEMORY; }
NS_ENSURE_SUCCESS(rootContent->SetDocument(doc, PR_FALSE), NS_ERROR_FAILURE);
doc->SetRootContent(rootContent);
rootContent->SetDocument(doc, PR_TRUE);
// (6) reflow the document
PRInt32 i;
PRInt32 ns = doc->GetNumberOfShells();
for (i = 0; i < ns; i++)
{
nsCOMPtr<nsIPresShell> shell(dont_AddRef(doc->GetShellAt(i)));
if (shell)
{
// Make shell an observer for next time
NS_ENSURE_SUCCESS(shell->BeginObservingDocument(), NS_ERROR_FAILURE);
// Resize-reflow this time
nsCOMPtr<nsIDocumentViewer> docViewer = do_QueryInterface(documentViewer);
if (!docViewer) { return NS_ERROR_OUT_OF_MEMORY; }
nsCOMPtr<nsIPresContext> presContext;
NS_ENSURE_SUCCESS(docViewer->GetPresContext(*(getter_AddRefs(presContext))), NS_ERROR_FAILURE);
if (!presContext) { return NS_ERROR_OUT_OF_MEMORY; }
float p2t;
presContext->GetScaledPixelsToTwips(&p2t);
nsRect r;
GetPositionAndSize(&r.x, &r.y, &r.width, &r.height);
NS_ENSURE_SUCCESS(shell->InitialReflow(NSToCoordRound(r.width * p2t), NSToCoordRound(r.height * p2t)), NS_ERROR_FAILURE);
// Now trigger a refresh
nsCOMPtr<nsIViewManager> vm;
NS_ENSURE_SUCCESS(shell->GetViewManager(getter_AddRefs(vm)), NS_ERROR_FAILURE);
if (vm)
{
PRBool enabled;
documentViewer->GetEnableRendering(&enabled);
if (enabled) {
vm->EnableRefresh(NS_VMREFRESH_IMMEDIATE);
}
NS_ENSURE_SUCCESS(vm->SetWindowDimensions(NSToCoordRound(r.width * p2t),
NSToCoordRound(r.height * p2t)),
NS_ERROR_FAILURE);
}
}
}
// (7) fire end document load notification
mProcessedEndDocumentLoad = PR_FALSE;
nsresult rv = NS_OK;
NS_ENSURE_SUCCESS(OnEndDocumentLoad(mDocLoader, dummyChannel, rv), NS_ERROR_FAILURE);
NS_ENSURE_SUCCESS(rv, NS_ERROR_FAILURE); // test the resulting out-param separately
return NS_OK;
}
NS_IMETHODIMP nsWebShell::GetParentContentListener(nsIURIContentListener** aParent)
{
return GetParentURIContentListener(aParent);
}
NS_IMETHODIMP nsWebShell::SetParentContentListener(nsIURIContentListener* aParent)
{
return SetParentURIContentListener(aParent);
}
NS_IMETHODIMP nsWebShell::GetLoadCookie(nsISupports ** aLoadCookie)
{
NS_ENSURE_SUCCESS(EnsureContentListener(), NS_ERROR_FAILURE);
return mContentListener->GetLoadCookie(aLoadCookie);
}
NS_IMETHODIMP nsWebShell::SetLoadCookie(nsISupports * aLoadCookie)
{
NS_ENSURE_SUCCESS(EnsureContentListener(), NS_ERROR_FAILURE);
return mContentListener->SetLoadCookie(aLoadCookie);
}
//----------------------------------------------------------------------
// Factory code for creating nsWebShell's
class nsWebShellFactory : public nsIFactory
{
public:
nsWebShellFactory();
virtual ~nsWebShellFactory();
NS_DECL_ISUPPORTS
// nsIFactory methods
NS_IMETHOD CreateInstance(nsISupports *aOuter,
const nsIID &aIID,
void **aResult);
NS_IMETHOD LockFactory(PRBool aLock);
};
nsWebShellFactory::nsWebShellFactory()
{
NS_INIT_REFCNT();
}
nsWebShellFactory::~nsWebShellFactory()
{
}
NS_IMPL_ADDREF(nsWebShellFactory);
NS_IMPL_RELEASE(nsWebShellFactory);
NS_INTERFACE_MAP_BEGIN(nsWebShellFactory)
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_ENTRY(nsIFactory)
NS_INTERFACE_MAP_END
nsresult
nsWebShellFactory::CreateInstance(nsISupports *aOuter,
const nsIID &aIID,
void **aResult)
{
nsresult rv;
nsWebShell *inst;
NS_ENSURE_ARG_POINTER(aResult);
NS_ENSURE_NO_AGGREGATION(aOuter);
*aResult = NULL;
NS_NEWXPCOM(inst, nsWebShell);
NS_ENSURE_TRUE(inst, NS_ERROR_OUT_OF_MEMORY);
NS_ADDREF(inst);
rv = inst->QueryInterface(aIID, aResult);
NS_RELEASE(inst);
return rv;
}
nsresult
nsWebShellFactory::LockFactory(PRBool aLock)
{
// Not implemented in simplest case.
return NS_OK;
}
extern "C" NS_WEB nsresult
NS_NewWebShellFactory(nsIFactory** aFactory)
{
nsresult rv = NS_OK;
nsIFactory* inst = new nsWebShellFactory();
if (nsnull == inst) {
rv = NS_ERROR_OUT_OF_MEMORY;
}
else {
NS_ADDREF(inst);
}
*aFactory = inst;
return rv;
}
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