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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 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (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.
*/
#include "nsIWebShell.h"
#include "nsIDocumentLoader.h"
#include "nsIContentViewer.h"
#include "nsIDocumentViewer.h"
#include "nsIClipboardCommands.h"
#include "nsIDeviceContext.h"
#include "nsILinkHandler.h"
#include "nsIStreamListener.h"
#include "nsINetSupport.h"
#include "nsIScriptGlobalObject.h"
#include "nsIScriptContextOwner.h"
#include "nsIDocumentLoaderObserver.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 "nsIRefreshUrl.h"
#include "nsITimer.h"
#include "nsITimerCallback.h"
#include "jsurl.h"
#include "nsIBrowserWindow.h"
#include "nsIContent.h"
#include "prlog.h"
#include "nsCOMPtr.h"
#include "nsIPresShell.h"
#include "nsIStreamObserver.h"
#include "nsIWebShellServices.h"
#include "nsIGlobalHistory.h"
#ifdef XP_PC
#include <windows.h>
#endif
//XXX used for nsIStreamObserver implementation. This sould be replaced by DocLoader
// notifications...
#include "nsIURL.h"
#ifdef NECKO
#include "nsIIOService.h"
#include "nsIURI.h"
#endif // NECKO
//XXX for nsIPostData; this is wrong; we shouldn't see the nsIDocument type
#include "nsIDocument.h"
#ifdef DEBUG
#undef NOISY_LINKS
#else
#undef NOISY_LINKS
#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
#if OLD_EVENT_QUEUE
/* The following is not used for the GTK version of the browser.
* It is still lurking around for Motif
*/
PLEventQueue* gWebShell_UnixEventQueue;
void nsWebShell_SetUnixEventQueue(PLEventQueue* aEventQueue)
{
gWebShell_UnixEventQueue = aEventQueue;
}
#endif /* OLD_EVENT_QUEUE */
static NS_DEFINE_CID(kGlobalHistoryCID, NS_GLOBALHISTORY_CID);
#ifdef NECKO
static NS_DEFINE_CID(kIOServiceCID, NS_IOSERVICE_CID);
#endif // NECKO
//----------------------------------------------------------------------
class nsWebShell : public nsIWebShell,
public nsIWebShellContainer,
public nsIWebShellServices,
public nsILinkHandler,
public nsIScriptContextOwner,
public nsIDocumentLoaderObserver,
public nsIRefreshUrl,
public nsINetSupport,
// public nsIStreamObserver,
public nsIClipboardCommands
{
public:
nsWebShell();
virtual ~nsWebShell();
NS_DECL_AND_IMPL_ZEROING_OPERATOR_NEW
// nsISupports
NS_DECL_ISUPPORTS
// nsIContentViewerContainer
NS_IMETHOD QueryCapability(const nsIID &aIID, void** aResult);
NS_IMETHOD Embed(nsIContentViewer* aDocViewer,
const char* aCommand,
nsISupports* aExtraInfo);
NS_IMETHOD GetContentViewer(nsIContentViewer** aResult);
// nsIWebShell
NS_IMETHOD Init(nsNativeWidget aNativeParent,
PRInt32 x, PRInt32 y, PRInt32 w, PRInt32 h,
nsScrollPreference aScrolling = nsScrollPreference_kAuto,
PRBool aAllowPlugins = PR_TRUE,
PRBool aIsSunkenBorder = PR_FALSE);
NS_IMETHOD Destroy(void);
NS_IMETHOD GetBounds(PRInt32 &x, PRInt32 &y, PRInt32 &w, PRInt32 &h);
NS_IMETHOD SetBounds(PRInt32 x, PRInt32 y, PRInt32 w, PRInt32 h);
NS_IMETHOD MoveTo(PRInt32 aX, PRInt32 aY);
NS_IMETHOD Show();
NS_IMETHOD Hide();
NS_IMETHOD SetFocus();
NS_IMETHOD RemoveFocus();
NS_IMETHOD Repaint(PRBool aForce);
NS_IMETHOD SetContentViewer(nsIContentViewer* aViewer);
NS_IMETHOD SetContainer(nsIWebShellContainer* aContainer);
NS_IMETHOD GetContainer(nsIWebShellContainer*& aResult);
NS_IMETHOD SetObserver(nsIStreamObserver* anObserver);
NS_IMETHOD GetObserver(nsIStreamObserver*& aResult);
NS_IMETHOD SetDocLoaderObserver(nsIDocumentLoaderObserver* anObserver);
NS_IMETHOD GetDocLoaderObserver(nsIDocumentLoaderObserver*& aResult);
NS_IMETHOD SetPrefs(nsIPref* aPrefs);
NS_IMETHOD GetPrefs(nsIPref*& aPrefs);
NS_IMETHOD GetRootWebShell(nsIWebShell*& aResult);
NS_IMETHOD GetRootWebShellEvenIfChrome(nsIWebShell*& aResult);
NS_IMETHOD SetParent(nsIWebShell* aParent);
NS_IMETHOD GetParent(nsIWebShell*& aParent);
NS_IMETHOD GetParentEvenIfChrome(nsIWebShell*& aParent);
NS_IMETHOD GetChildCount(PRInt32& aResult);
NS_IMETHOD AddChild(nsIWebShell* aChild);
NS_IMETHOD RemoveChild(nsIWebShell* aChild);
NS_IMETHOD ChildAt(PRInt32 aIndex, nsIWebShell*& aResult);
NS_IMETHOD GetName(const PRUnichar** aName);
NS_IMETHOD SetName(const PRUnichar* aName);
NS_IMETHOD FindChildWithName(const PRUnichar* aName,
nsIWebShell*& aResult);
NS_IMETHOD SetWebShellType(nsWebShellType aWebShellType);
NS_IMETHOD GetWebShellType(nsWebShellType& aWebShellType);
NS_IMETHOD GetContainingChromeShell(nsIWebShell** aResult);
NS_IMETHOD SetContainingChromeShell(nsIWebShell* aChromeShell);
NS_IMETHOD GetMarginWidth (PRInt32& aWidth);
NS_IMETHOD SetMarginWidth (PRInt32 aWidth);
NS_IMETHOD GetMarginHeight(PRInt32& aWidth);
NS_IMETHOD SetMarginHeight(PRInt32 aHeight);
NS_IMETHOD GetScrolling(PRInt32& aScrolling);
NS_IMETHOD SetScrolling(PRInt32 aScrolling, PRBool aSetCurrentAndInitial = PR_TRUE);
NS_IMETHOD GetIsFrame(PRBool& aIsFrame);
NS_IMETHOD SetIsFrame(PRBool aIsFrame);
NS_IMETHOD SetZoom(float aZoom);
NS_IMETHOD GetZoom(float *aZoom);
// Document load api's
NS_IMETHOD GetDocumentLoader(nsIDocumentLoader*& aResult);
NS_IMETHOD LoadURL(const PRUnichar *aURLSpec,
nsIPostData* aPostData=nsnull,
PRBool aModifyHistory=PR_TRUE,
nsURLReloadType aType = nsURLReload,
const PRUint32 localIP = 0);
NS_IMETHOD LoadURL(const PRUnichar *aURLSpec,
const char* aCommand,
nsIPostData* aPostData=nsnull,
PRBool aModifyHistory=PR_TRUE,
nsURLReloadType aType = nsURLReload,
const PRUint32 localIP = 0);
NS_IMETHOD Stop(void);
NS_IMETHOD Reload(nsURLReloadType aType);
// History api's
NS_IMETHOD Back(void);
NS_IMETHOD CanBack(void);
NS_IMETHOD Forward(void);
NS_IMETHOD CanForward(void);
NS_IMETHOD GoTo(PRInt32 aHistoryIndex);
NS_IMETHOD GetHistoryLength(PRInt32& aResult);
NS_IMETHOD GetHistoryIndex(PRInt32& aResult);
NS_IMETHOD GetURL(PRInt32 aHistoryIndex, const PRUnichar** aURLResult);
// Chrome api's
NS_IMETHOD SetTitle(const PRUnichar* aTitle);
NS_IMETHOD GetTitle(const PRUnichar** aResult);
// nsIWebShellContainer
NS_IMETHOD WillLoadURL(nsIWebShell* aShell, const PRUnichar* aURL, nsLoadType aReason);
NS_IMETHOD BeginLoadURL(nsIWebShell* aShell, const PRUnichar* aURL);
NS_IMETHOD ProgressLoadURL(nsIWebShell* aShell, const PRUnichar* aURL, PRInt32 aProgress, PRInt32 aProgressMax);
NS_IMETHOD EndLoadURL(nsIWebShell* aShell, const PRUnichar* aURL, PRInt32 aStatus);
NS_IMETHOD NewWebShell(PRUint32 aChromeMask,
PRBool aVisible,
nsIWebShell *&aNewWebShell);
NS_IMETHOD ContentShellAdded(nsIWebShell* aChildShell, nsIContent* frameNode);
NS_IMETHOD CreatePopup(nsIDOMElement* aElement, nsIDOMElement* aPopupContent,
PRInt32 aXPos, PRInt32 aYPos,
const nsString& aPopupType, const nsString& anAnchorAlignment,
const nsString& aPopupAlignment,
nsIDOMWindow* aWindow);
NS_IMETHOD FindWebShellWithName(const PRUnichar* aName, nsIWebShell*& aResult);
NS_IMETHOD FocusAvailable(nsIWebShell* aFocusedWebShell, PRBool& aFocusTaken);
// 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,
nsIPostData* aPostData = 0);
NS_IMETHOD OnOverLink(nsIContent* aContent,
const PRUnichar* aURLSpec,
const PRUnichar* aTargetSpec);
NS_IMETHOD GetLinkState(const PRUnichar* aURLSpec, nsLinkState& aState);
// nsIScriptContextOwner
NS_IMETHOD GetScriptContext(nsIScriptContext **aContext);
NS_IMETHOD GetScriptGlobalObject(nsIScriptGlobalObject **aGlobal);
NS_IMETHOD ReleaseScriptContext(nsIScriptContext *aContext);
// nsIDocumentLoaderObserver
NS_IMETHOD OnStartDocumentLoad(nsIDocumentLoader* loader,
nsIURL* aURL,
const char* aCommand);
NS_IMETHOD OnEndDocumentLoad(nsIDocumentLoader* loader,
nsIURL* aURL,
PRInt32 aStatus,
nsIDocumentLoaderObserver * );
NS_IMETHOD OnStartURLLoad(nsIDocumentLoader* loader,
nsIURL* aURL, const char* aContentType,
nsIContentViewer* aViewer);
NS_IMETHOD OnProgressURLLoad(nsIDocumentLoader* loader,
nsIURL* aURL, PRUint32 aProgress,
PRUint32 aProgressMax);
NS_IMETHOD OnStatusURLLoad(nsIDocumentLoader* loader,
nsIURL* aURL, nsString& aMsg);
NS_IMETHOD OnEndURLLoad(nsIDocumentLoader* loader,
nsIURL* aURL, PRInt32 aStatus);
NS_IMETHOD HandleUnknownContentType(nsIDocumentLoader* loader,
nsIURL* aURL,
const char *aContentType,
const char *aCommand );
// NS_IMETHOD OnConnectionsComplete();
// nsIRefreshURL interface methods...
NS_IMETHOD RefreshURL(nsIURL* aURL, PRInt32 millis, PRBool repeat);
NS_IMETHOD RefreshURL(const char* aURL, PRInt32 millis, PRBool repeat);
NS_IMETHOD CancelRefreshURLTimers(void);
#if 0
// nsIStreamObserver
NS_IMETHOD OnStartBinding(nsIURL* aURL, const char *aContentType);
NS_IMETHOD OnProgress(nsIURL* aURL, PRUint32 aProgress, PRUint32 aProgressMax);
NS_IMETHOD OnStatus(nsIURL* aURL, const PRUnichar* aMsg);
NS_IMETHOD OnStopBinding(nsIURL* aURL, nsresult aStatus, const PRUnichar* aMsg);
#endif /* 0 */
// nsINetSupport interface methods
NS_IMETHOD_(void) Alert(const nsString &aText);
NS_IMETHOD_(PRBool) Confirm(const nsString &aText);
NS_IMETHOD_(PRBool) Prompt(const nsString &aText,
const nsString &aDefault,
nsString &aResult);
NS_IMETHOD_(PRBool) PromptUserAndPassword(const nsString &aText,
nsString &aUser,
nsString &aPassword);
NS_IMETHOD_(PRBool) PromptPassword(const nsString &aText,
nsString &aPassword);
// 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);
// nsWebShell
nsIEventQueue* GetEventQueue(void);
void HandleLinkClickEvent(nsIContent *aContent,
nsLinkVerb aVerb,
const PRUnichar* aURLSpec,
const PRUnichar* aTargetSpec,
nsIPostData* aPostDat = 0);
void ShowHistory();
nsIWebShell* GetTarget(const PRUnichar* aName);
nsIBrowserWindow* GetBrowserWindow(void);
static void RefreshURLCallback(nsITimer* aTimer, void* aClosure);
static nsEventStatus PR_CALLBACK HandleEvent(nsGUIEvent *aEvent);
nsresult CreatePluginHost(PRBool aAllowPlugins);
nsresult DestroyPluginHost(void);
NS_IMETHOD GetDefaultCharacterSet (const PRUnichar** aDefaultCharacterSet);
NS_IMETHOD SetDefaultCharacterSet (const PRUnichar* aDefaultCharacterSet);
NS_IMETHOD GetForceCharacterSet (const PRUnichar** aForceCharacterSet);
NS_IMETHOD SetForceCharacterSet (const PRUnichar* aForceCharacterSet);
NS_IMETHOD GetCharacterSetHint (const PRUnichar** oHintCharset, nsCharsetSource* oSource);
NS_IMETHOD SetSessionHistory(nsISessionHistory * aSHist);
NS_IMETHOD GetSessionHistory(nsISessionHistory *& aResult);
NS_IMETHOD SetIsInSHist(PRBool aIsFrame);
NS_IMETHOD GetIsInSHist(PRBool& aIsFrame);
NS_IMETHOD GetURL(const PRUnichar** aURL);
NS_IMETHOD SetURL(const PRUnichar* aURL);
protected:
void InitFrameData(PRBool aCompleteInitScrolling);
nsresult CheckForTrailingSlash(nsIURL* aURL);
nsIEventQueue* mThreadEventQueue;
nsIScriptGlobalObject *mScriptGlobal;
nsIScriptContext* mScriptContext;
nsIStreamObserver * mObserver;
nsIWebShellContainer* mContainer;
nsIContentViewer* mContentViewer;
nsIDeviceContext* mDeviceContext;
nsIPref* mPrefs;
nsIWidget* mWindow;
nsIDocumentLoader* mDocLoader;
nsIDocumentLoaderObserver* mDocLoaderObserver;
nsINetSupport* mNetSupport;
nsIWebShell* mParent;
nsVoidArray mChildren;
nsString mName;
nsString mDefaultCharacterSet;
nsVoidArray mHistory;
PRInt32 mHistoryIndex;
nsIGlobalHistory* mHistoryService;
nsISessionHistory * mSHist;
nsString mTitle;
nsString mURL;
nsString mOverURL;
nsString mOverTarget;
PRBool mIsInSHist;
nsScrollPreference mScrollPref;
PRInt32 mMarginWidth;
PRInt32 mMarginHeight;
PRInt32 mScrolling[2];
PRBool mIsFrame;
nsVoidArray mRefreshments;
nsWebShellType mWebShellType;
nsIWebShell* mChromeShell; // Weak reference.
void ReleaseChildren();
void DestroyChildren();
nsresult CreateScriptEnvironment();
nsresult DoLoadURL(const nsString& aUrlSpec,
const char* aCommand,
nsIPostData* aPostData,
nsURLReloadType aType,
const PRUint32 aLocalIP);
float mZoom;
static nsIPluginHost *mPluginHost;
static nsIPluginManager *mPluginManager;
static PRUint32 mPluginInitCnt;
PRBool mProcessedEndDocumentLoad;
// XXX store mHintCharset and mHintCharsetSource here untill we find out a good cood path
nsString mHintCharset;
nsCharsetSource mHintCharsetSource;
nsString mForceCharacterSet;
};
//----------------------------------------------------------------------
// Class IID's
static NS_DEFINE_IID(kEventQueueServiceCID, NS_EVENTQUEUESERVICE_CID);
static NS_DEFINE_IID(kChildCID, NS_CHILD_CID);
static NS_DEFINE_IID(kDeviceContextCID, NS_DEVICE_CONTEXT_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(kIDocumentLoaderObserverIID,
NS_IDOCUMENT_LOADER_OBSERVER_IID);
static NS_DEFINE_IID(kIDeviceContextIID, NS_IDEVICE_CONTEXT_IID);
static NS_DEFINE_IID(kIDocumentLoaderIID, NS_IDOCUMENTLOADER_IID);
static NS_DEFINE_IID(kIFactoryIID, NS_IFACTORY_IID);
static NS_DEFINE_IID(kIScriptContextOwnerIID, NS_ISCRIPTCONTEXTOWNER_IID);
static NS_DEFINE_IID(kIStreamObserverIID, NS_ISTREAMOBSERVER_IID);
static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
static NS_DEFINE_IID(kINetSupportIID, NS_INETSUPPORT_IID);
static NS_DEFINE_IID(kIWebShellIID, NS_IWEB_SHELL_IID);
static NS_DEFINE_IID(kIWebShellServicesIID, NS_IWEB_SHELL_SERVICES_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(kCPluginHostCID, NS_PLUGIN_HOST_CID);
static NS_DEFINE_IID(kCPluginManagerCID, NS_PLUGINMANAGER_CID);
static NS_DEFINE_IID(kIDocumentViewerIID, NS_IDOCUMENT_VIEWER_IID);
static NS_DEFINE_IID(kRefreshURLIID, NS_IREFRESHURL_IID);
static NS_DEFINE_IID(kITimerCallbackIID, NS_ITIMERCALLBACK_IID);
static NS_DEFINE_IID(kIWebShellContainerIID, NS_IWEB_SHELL_CONTAINER_IID);
static NS_DEFINE_IID(kIBrowserWindowIID, NS_IBROWSER_WINDOW_IID);
static NS_DEFINE_IID(kIClipboardCommandsIID, NS_ICLIPBOARDCOMMANDS_IID);
static NS_DEFINE_IID(kIEventQueueServiceIID, NS_IEVENTQUEUESERVICE_IID);
static NS_DEFINE_IID(kISessionHistoryIID, NS_ISESSION_HISTORY_IID);
// XXX not sure
static NS_DEFINE_IID(kILinkHandlerIID, NS_ILINKHANDLER_IID);
nsIPluginHost *nsWebShell::mPluginHost = nsnull;
nsIPluginManager *nsWebShell::mPluginManager = nsnull;
PRUint32 nsWebShell::mPluginInitCnt = 0;
nsresult nsWebShell::CreatePluginHost(PRBool aAllowPlugins)
{
nsresult rv = NS_OK;
if ((PR_TRUE == aAllowPlugins) && (0 == mPluginInitCnt))
{
if (nsnull == mPluginManager)
{
// use the service manager to obtain the plugin manager.
rv = nsServiceManager::GetService(kCPluginManagerCID, kIPluginManagerIID,
(nsISupports**)&mPluginManager);
if (NS_OK == rv)
{
if (NS_OK == mPluginManager->QueryInterface(kIPluginHostIID,
(void **)&mPluginHost))
{
mPluginHost->Init();
}
}
}
}
mPluginInitCnt++;
return rv;
}
nsresult nsWebShell::DestroyPluginHost(void)
{
mPluginInitCnt--;
NS_ASSERTION(!(mPluginInitCnt < 0), "underflow in plugin host destruction");
if (0 == mPluginInitCnt)
{
if (nsnull != mPluginHost) {
mPluginHost->Destroy();
mPluginHost->Release();
mPluginHost = NULL;
}
// use the service manager to release the plugin manager.
if (nsnull != mPluginManager) {
nsServiceManager::ReleaseService(kCPluginManagerCID, mPluginManager);
mPluginManager = NULL;
}
}
return NS_OK;
}
//----------------------------------------------------------------------
// Note: operator new zeros our memory
nsWebShell::nsWebShell()
{
NS_INIT_REFCNT();
mHistoryIndex = -1;
mScrollPref = nsScrollPreference_kAuto;
mScriptGlobal = nsnull;
mScriptContext = nsnull;
mThreadEventQueue = nsnull;
InitFrameData(PR_TRUE);
mIsFrame = PR_FALSE;
mWebShellType = nsWebShellContent;
mChromeShell = nsnull;
mSHist = nsnull;
mIsInSHist = PR_FALSE;
// XXX we should get such mDefaultCharacterSet from pref laster...
mDefaultCharacterSet = "ISO-8859-1";
mProcessedEndDocumentLoad = PR_FALSE;
mHintCharset = "";
mHintCharsetSource = kCharsetUninitialized;
mForceCharacterSet = "";
mHistoryService = nsnull;
}
nsWebShell::~nsWebShell()
{
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.
CancelRefreshURLTimers();
++mRefCnt; // following releases can cause this destructor to be called
// recursively if the refcount is allowed to remain 0
NS_IF_RELEASE(mWindow);
NS_IF_RELEASE(mThreadEventQueue);
NS_IF_RELEASE(mContentViewer);
NS_IF_RELEASE(mDeviceContext);
NS_IF_RELEASE(mPrefs);
NS_IF_RELEASE(mContainer);
NS_IF_RELEASE(mObserver);
NS_IF_RELEASE(mNetSupport);
if (nsnull != mScriptGlobal) {
mScriptGlobal->SetWebShell(nsnull);
NS_RELEASE(mScriptGlobal);
}
NS_IF_RELEASE(mScriptContext);
InitFrameData(PR_TRUE);
mIsFrame = PR_FALSE;
// XXX Because we hold references to the children and they hold references
// to us we never get destroyed. See Destroy() instead...
#if 0
// Release references on our children
ReleaseChildren();
#endif
// Free up history memory
PRInt32 i, n = mHistory.Count();
for (i = 0; i < n; i++) {
nsString* s = (nsString*) mHistory.ElementAt(i);
delete s;
}
DestroyPluginHost();
}
void nsWebShell::InitFrameData(PRBool aCompleteInitScrolling)
{
if (aCompleteInitScrolling) {
mScrolling[0] = -1;
mScrolling[1] = -1;
mMarginWidth = -1;
mMarginHeight = -1;
}
else {
mScrolling[1] = mScrolling[0];
}
}
void
nsWebShell::ReleaseChildren()
{
PRInt32 i, n = mChildren.Count();
for (i = 0; i < n; i++) {
nsIWebShell* shell = (nsIWebShell*) mChildren.ElementAt(i);
shell->SetParent(nsnull);
//Break circular reference of webshell to contentviewer
shell->SetContentViewer(nsnull);
NS_RELEASE(shell);
}
mChildren.Clear();
}
void
nsWebShell::DestroyChildren()
{
PRInt32 i, n = mChildren.Count();
for (i = 0; i < n; i++) {
nsIWebShell* shell = (nsIWebShell*) mChildren.ElementAt(i);
shell->SetParent(nsnull);
shell->Destroy();
NS_RELEASE(shell);
}
mChildren.Clear();
}
NS_IMETHODIMP_(nsrefcnt) nsWebShell::AddRef(void)
{
NS_PRECONDITION(PRInt32(mRefCnt) >= 0, "illegal refcnt");
++mRefCnt;
return mRefCnt;
}
NS_IMETHODIMP_(nsrefcnt) nsWebShell::Release(void)
{
NS_PRECONDITION(0 != mRefCnt, "dup release");
--mRefCnt;
if (mRefCnt == 0) {
NS_DELETEXPCOM(this);
return 0;
}
return mRefCnt;
}
nsresult
nsWebShell::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
nsresult rv = NS_NOINTERFACE;
if (NULL == aInstancePtr) {
return NS_ERROR_NULL_POINTER;
}
if (aIID.Equals(kIWebShellServicesIID)) {
*aInstancePtr = (void*)(nsIWebShellServices*)this;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(kIWebShellIID)) {
*aInstancePtr = (void*)(nsIWebShell*)this;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(kIContentViewerContainerIID)) {
*aInstancePtr = (void*)(nsIContentViewerContainer*)this;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(kIScriptContextOwnerIID)) {
*aInstancePtr = (void*)(nsIScriptContextOwner*)this;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(kIDocumentLoaderObserverIID)) {
*aInstancePtr = (void*)(nsIDocumentLoaderObserver*)this;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(kIWebShellContainerIID)) {
*aInstancePtr = (void*)(nsIWebShellContainer*)this;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(kILinkHandlerIID)) {
//I added this for plugin support of jumping
//through links. maybe there is a better way... MMP
*aInstancePtr = (void*)(nsILinkHandler*)this;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(kRefreshURLIID)) {
*aInstancePtr = (void*)(nsIRefreshUrl*)this;
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(kINetSupportIID)) {
*aInstancePtr = (void*) ((nsINetSupport*)this);
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(kIClipboardCommandsIID)) {
*aInstancePtr = (void*) ((nsIClipboardCommands*)this);
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(kISupportsIID)) {
*aInstancePtr = (void*)(nsISupports*)(nsIWebShell*)this;
NS_ADDREF_THIS();
return NS_OK;
}
#if defined(NS_DEBUG)
/*
* Check for the debug-only interface indicating thread-safety
*/
static NS_DEFINE_IID(kIsThreadsafeIID, NS_ISTHREADSAFE_IID);
if (aIID.Equals(kIsThreadsafeIID)) {
return NS_OK;
}
#endif /* NS_DEBUG */
return rv;
}
NS_IMETHODIMP
nsWebShell::QueryCapability(const nsIID &aIID, void** aInstancePtr)
{
if (nsnull == aInstancePtr) {
return NS_ERROR_NULL_POINTER;
}
if (aIID.Equals(kILinkHandlerIID)) {
*aInstancePtr = (void*) ((nsILinkHandler*)this);
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(kIScriptContextOwnerIID)) {
*aInstancePtr = (void*) ((nsIScriptContextOwner*)this);
NS_ADDREF_THIS();
return NS_OK;
}
//XXX this seems a little wrong. MMP
if (nsnull != mPluginManager)
return mPluginManager->QueryInterface(aIID, aInstancePtr);
return NS_NOINTERFACE;
}
NS_IMETHODIMP
nsWebShell::Embed(nsIContentViewer* aContentViewer,
const char* aCommand,
nsISupports* aExtraInfo)
{
nsresult rv;
nsRect bounds;
WEB_TRACE(WEB_TRACE_CALLS,
("nsWebShell::Embed: this=%p aDocViewer=%p aCommand=%s aExtraInfo=%p",
this, aContentViewer, aCommand ? aCommand : "", aExtraInfo));
NS_IF_RELEASE(mContentViewer);
if (nsnull != mScriptContext) {
mScriptContext->GC();
}
mContentViewer = aContentViewer;
NS_ADDREF(aContentViewer);
mWindow->GetClientBounds(bounds);
bounds.x = bounds.y = 0;
rv = mContentViewer->Init(mWindow->GetNativeData(NS_NATIVE_WIDGET),
mDeviceContext,
mPrefs,
bounds,
mScrollPref);
if (NS_SUCCEEDED(rv)) {
mContentViewer->Show();
}
// Now that we have switched documents, forget all of our children
DestroyChildren();
return rv;
}
NS_IMETHODIMP
nsWebShell::GetContentViewer(nsIContentViewer** aResult)
{
nsresult rv = NS_OK;
if (nsnull == aResult) {
rv = NS_ERROR_NULL_POINTER;
} else {
*aResult = mContentViewer;
NS_IF_ADDREF(mContentViewer);
}
return rv;
}
NS_IMETHODIMP
nsWebShell::HandleUnknownContentType(nsIDocumentLoader* loader,
nsIURL* aURL,
const char *aContentType,
const char *aCommand ) {
// If we have a doc loader observer, let it respond to this.
return mDocLoaderObserver ? mDocLoaderObserver->HandleUnknownContentType( mDocLoader, aURL, aContentType, aCommand )
: NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsWebShell::Init(nsNativeWidget aNativeParent,
PRInt32 x, PRInt32 y, PRInt32 w, PRInt32 h,
nsScrollPreference aScrolling,
PRBool aAllowPlugins,
PRBool aIsSunkenBorder)
{
nsresult rv = NS_OK;
// 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...
//
nsIEventQueueService* eventService;
rv = nsServiceManager::GetService(kEventQueueServiceCID,
kIEventQueueServiceIID,
(nsISupports **)&eventService);
if (NS_SUCCEEDED(rv)) {
// XXX: What if this fails?
rv = eventService->GetThreadEventQueue(PR_GetCurrentThread(),
&mThreadEventQueue);
nsServiceManager::ReleaseService(kEventQueueServiceCID, eventService);
}
//XXX make sure plugins have started up. this really needs to
//be associated with the nsIContentViewerContainer interfaces,
//not the nsIWebShell interfaces. this is a hack. MMP
nsRect aBounds(x,y,w,h);
nsWidgetInitData widgetInit;
CreatePluginHost(aAllowPlugins);
//mScrollPref = aScrolling;
WEB_TRACE(WEB_TRACE_CALLS,
("nsWebShell::Init: this=%p", this));
// Initial error checking...
NS_PRECONDITION(nsnull != aNativeParent, "null Parent Window");
if (nsnull == aNativeParent) {
rv = NS_ERROR_NULL_POINTER;
goto done;
}
// Create a document loader...
if (nsnull != mParent) {
nsIDocumentLoader* parentLoader;
// Create a child document loader...
rv = mParent->GetDocumentLoader(parentLoader);
if (NS_SUCCEEDED(rv)) {
rv = parentLoader->CreateDocumentLoader(&mDocLoader);
NS_RELEASE(parentLoader);
}
} else {
nsIDocumentLoader* docLoaderService;
// Get the global document loader service...
rv = nsServiceManager::GetService(kDocLoaderServiceCID,
kIDocumentLoaderIID,
(nsISupports **)&docLoaderService);
if (NS_SUCCEEDED(rv)) {
rv = docLoaderService->CreateDocumentLoader(&mDocLoader);
nsServiceManager::ReleaseService(kDocLoaderServiceCID, docLoaderService);
}
}
if (NS_FAILED(rv)) {
goto done;
}
// Set the webshell as the default IContentViewerContainer for the loader...
mDocLoader->SetContainer(this);
//Register ourselves as an observer for the new doc loader
mDocLoader->AddObserver((nsIDocumentLoaderObserver*)this);
// Create device context
rv = nsComponentManager::CreateInstance(kDeviceContextCID, nsnull,
kIDeviceContextIID,
(void **)&mDeviceContext);
if (NS_FAILED(rv)) {
goto done;
}
mDeviceContext->Init(aNativeParent);
float dev2twip;
mDeviceContext->GetDevUnitsToTwips(dev2twip);
mDeviceContext->SetDevUnitsToAppUnits(dev2twip);
float twip2dev;
mDeviceContext->GetTwipsToDevUnits(twip2dev);
mDeviceContext->SetAppUnitsToDevUnits(twip2dev);
// mDeviceContext->SetGamma(1.7f);
mDeviceContext->SetGamma(1.0f);
// Create a Native window for the shell container...
rv = nsComponentManager::CreateInstance(kChildCID, nsnull, kIWidgetIID, (void**)&mWindow);
if (NS_FAILED(rv)) {
goto done;
}
widgetInit.clipChildren = PR_FALSE;
//widgetInit.mBorderStyle = aIsSunkenBorder ? eBorderStyle_3DChildWindow : eBorderStyle_none;
mWindow->Create(aNativeParent, aBounds, nsWebShell::HandleEvent,
mDeviceContext, nsnull, nsnull, &widgetInit);
done:
return rv;
}
NS_IMETHODIMP
nsWebShell::Destroy()
{
nsresult rv = NS_OK;
//Fire unload event before we blow anything away.
if (nsnull != mScriptGlobal) {
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_UNLOAD;
rv = mScriptGlobal->HandleDOMEvent(*presContext, &event, nsnull, NS_EVENT_FLAG_INIT, status);
NS_RELEASE(presContext);
}
NS_RELEASE(docViewer);
}
}
// Stop any URLs that are currently being loaded...
Stop();
SetContainer(nsnull);
SetObserver(nsnull);
SetDocLoaderObserver(nsnull);
// Remove this webshell from its parent's child list
if (nsnull != mParent) {
mParent->RemoveChild(this);
}
if (nsnull != mDocLoader) {
mDocLoader->SetContainer(nsnull);
}
NS_IF_RELEASE(mContentViewer);
// Destroy our child web shells and release references to them
DestroyChildren();
return rv;
}
NS_IMETHODIMP
nsWebShell::GetBounds(PRInt32 &x, PRInt32 &y, PRInt32 &w, PRInt32 &h)
{
nsRect aResult;
NS_PRECONDITION(nsnull != mWindow, "null window");
aResult.SetRect(0, 0, 0, 0);
if (nsnull != mWindow) {
mWindow->GetClientBounds(aResult);
}
x = aResult.x;
y = aResult.y;
w = aResult.width;
h = aResult.height;
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::SetBounds(PRInt32 x, PRInt32 y, PRInt32 w, PRInt32 h)
{
NS_PRECONDITION(nsnull != mWindow, "null window");
PRInt32 borderWidth = 0;
PRInt32 borderHeight = 0;
if (nsnull != mWindow) {
mWindow->GetBorderSize(borderWidth, borderHeight);
// Don't have the widget repaint. Layout will generate repaint requests
// during reflow
mWindow->Resize(x, y, w, h, PR_FALSE);
}
// Set the size of the content area, which is the size of the window
// minus the borders
if (nsnull != mContentViewer) {
nsRect rr(0, 0, w-(borderWidth*2), h-(borderHeight*2));
mContentViewer->SetBounds(rr);
}
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::MoveTo(PRInt32 aX, PRInt32 aY)
{
NS_PRECONDITION(nsnull != mWindow, "null window");
if (nsnull != mWindow) {
mWindow->Move(aX, aY);
}
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::Show()
{
NS_PRECONDITION(nsnull != mWindow, "null window");
if (nsnull != mWindow) {
mWindow->Show(PR_TRUE);
}
if (nsnull != mContentViewer) {
mContentViewer->Show();
}
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::Hide()
{
NS_PRECONDITION(nsnull != mWindow, "null window");
if (nsnull != mWindow) {
mWindow->Show(PR_FALSE);
}
if (nsnull != mContentViewer) {
mContentViewer->Hide();
}
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::SetFocus()
{
NS_PRECONDITION(nsnull != mWindow, "null window");
if (nsnull != mWindow) {
mWindow->SetFocus();
}
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::RemoveFocus()
{
NS_PRECONDITION(nsnull != mWindow, "null window");
if (nsnull != mWindow) {
nsIWidget *parentWidget = mWindow->GetParent();
if (nsnull != parentWidget) {
parentWidget->SetFocus();
NS_RELEASE(parentWidget);
}
}
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::Repaint(PRBool aForce)
{
NS_PRECONDITION(nsnull != mWindow, "null window");
if (nsnull != mWindow) {
mWindow->Invalidate(aForce);
}
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::SetContentViewer(nsIContentViewer* aViewer)
{
NS_IF_RELEASE(mContentViewer);
mContentViewer = aViewer;
NS_IF_ADDREF(aViewer);
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::SetContainer(nsIWebShellContainer* aContainer)
{
NS_IF_RELEASE(mContainer);
mContainer = aContainer;
NS_IF_ADDREF(aContainer);
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::GetContainer(nsIWebShellContainer*& aResult)
{
aResult = mContainer;
NS_IF_ADDREF(mContainer);
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::SetObserver(nsIStreamObserver* anObserver)
{
NS_IF_RELEASE(mObserver);
NS_IF_RELEASE(mNetSupport);
mObserver = anObserver;
if (nsnull != mObserver) {
mObserver->QueryInterface(kINetSupportIID, (void **) &mNetSupport);
NS_ADDREF(mObserver);
}
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::GetObserver(nsIStreamObserver*& aResult)
{
aResult = mObserver;
NS_IF_ADDREF(mObserver);
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::SetDocLoaderObserver(nsIDocumentLoaderObserver* anObserver)
{
NS_IF_RELEASE(mDocLoaderObserver);
mDocLoaderObserver = anObserver;
NS_IF_ADDREF(mDocLoaderObserver);
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::GetDocLoaderObserver(nsIDocumentLoaderObserver*& aResult)
{
aResult = mDocLoaderObserver;
NS_IF_ADDREF(mDocLoaderObserver);
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::SetPrefs(nsIPref* aPrefs)
{
NS_IF_RELEASE(mPrefs);
mPrefs = aPrefs;
NS_IF_ADDREF(mPrefs);
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::GetPrefs(nsIPref*& aPrefs)
{
aPrefs = mPrefs;
NS_IF_ADDREF(aPrefs);
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::GetRootWebShell(nsIWebShell*& aResult)
{
nsIWebShell* top = this;
NS_ADDREF(this);
for (;;) {
nsIWebShell* parent;
top->GetParent(parent);
if (nsnull == parent) {
break;
}
NS_RELEASE(top);
top = parent;
}
aResult = top;
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::GetRootWebShellEvenIfChrome(nsIWebShell*& aResult)
{
nsIWebShell* top = this;
NS_ADDREF(this);
for (;;) {
nsIWebShell* parent;
top->GetParentEvenIfChrome(parent);
if (nsnull == parent) {
break;
}
NS_RELEASE(top);
top = parent;
}
aResult = top;
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::SetParent(nsIWebShell* aParent)
{
NS_IF_RELEASE(mParent);
mParent = aParent;
NS_IF_ADDREF(aParent);
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::GetParent(nsIWebShell*& aParent)
{
if (mWebShellType == nsWebShellContent)
{
// We cannot return our parent if it is a chrome webshell.
nsWebShellType parentType;
if (mParent)
{
mParent->GetWebShellType(parentType);
if (parentType == nsWebShellChrome)
{
aParent = nsnull; // Just return null.
return NS_OK;
}
}
}
aParent = mParent;
NS_IF_ADDREF(mParent);
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::GetParentEvenIfChrome(nsIWebShell*& aParent)
{
aParent = mParent;
NS_IF_ADDREF(mParent);
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::GetChildCount(PRInt32& aResult)
{
aResult = mChildren.Count();
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::AddChild(nsIWebShell* aChild)
{
NS_PRECONDITION(nsnull != aChild, "null ptr");
if (nsnull == aChild) {
return NS_ERROR_NULL_POINTER;
}
mChildren.AppendElement(aChild);
aChild->SetParent(this);
aChild->SetDefaultCharacterSet(mDefaultCharacterSet.GetUnicode());
aChild->SetForceCharacterSet(mForceCharacterSet.GetUnicode());
NS_ADDREF(aChild);
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::RemoveChild(nsIWebShell* aChild)
{
NS_PRECONDITION(nsnull != aChild, "nsWebShell::RemoveChild(): null ptr");
if (nsnull == aChild) {
return NS_ERROR_NULL_POINTER;
}
mChildren.RemoveElement(aChild);
aChild->SetParent(nsnull);
NS_RELEASE(aChild);
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::ChildAt(PRInt32 aIndex, nsIWebShell*& aResult)
{
if (PRUint32(aIndex) >= PRUint32(mChildren.Count())) {
aResult = nsnull;
}
else {
aResult = (nsIWebShell*) mChildren.ElementAt(aIndex);
NS_IF_ADDREF(aResult);
}
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::GetName(const PRUnichar** aName)
{
*aName = mName.GetUnicode();
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::SetName(const PRUnichar* aName)
{
mName = aName;
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::GetURL(const PRUnichar** aURL)
{
*aURL = mURL.GetUnicode();
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::SetURL(const PRUnichar* aURL)
{
mURL = aURL;
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;
}
NS_IMETHODIMP
nsWebShell::FindChildWithName(const PRUnichar* aName1,
nsIWebShell*& aResult)
{
aResult = nsnull;
nsString aName(aName1);
const PRUnichar *childName;
PRInt32 i, n = mChildren.Count();
for (i = 0; i < n; i++) {
nsIWebShell* child = (nsIWebShell*) mChildren.ElementAt(i);
if (nsnull != child) {
child->GetName(&childName);
if (aName.Equals(childName)) {
aResult = child;
NS_ADDREF(child);
break;
}
// See if child contains the shell with the given name
nsresult rv = child->FindChildWithName(aName.GetUnicode(), aResult);
if (NS_FAILED(rv)) {
return rv;
}
if (nsnull != aResult) {
break;
}
}
}
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::GetWebShellType(nsWebShellType& aWebShellType)
{
aWebShellType = mWebShellType;
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::SetWebShellType(nsWebShellType aWebShellType)
{
if (aWebShellType != nsWebShellChrome &&
aWebShellType != nsWebShellContent)
{
NS_ERROR("Attempt to set bogus webshell type: values should be content or chrome.");
return NS_ERROR_FAILURE;
}
mWebShellType = aWebShellType;
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::GetContainingChromeShell(nsIWebShell** aResult)
{
NS_IF_ADDREF(mChromeShell);
*aResult = mChromeShell;
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::SetContainingChromeShell(nsIWebShell* aChromeShell)
{
// Weak reference. Don't addref.
mChromeShell = aChromeShell;
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::GetMarginWidth(PRInt32& aWidth)
{
aWidth = mMarginWidth;
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::SetMarginWidth(PRInt32 aWidth)
{
mMarginWidth = aWidth;
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::GetMarginHeight(PRInt32& aHeight)
{
aHeight = mMarginHeight;
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::SetMarginHeight(PRInt32 aHeight)
{
mMarginHeight = aHeight;
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::GetScrolling(PRInt32& aScrolling)
{
aScrolling = mScrolling[1];
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::SetScrolling(PRInt32 aScrolling, PRBool aSetCurrentAndInitial)
{
mScrolling[1] = aScrolling;
if (aSetCurrentAndInitial) {
mScrolling[0] = aScrolling;
}
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::GetIsFrame(PRBool& aIsFrame)
{
aIsFrame = mIsFrame;
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::SetIsFrame(PRBool aIsFrame)
{
mIsFrame = aIsFrame;
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::SetZoom(float aZoom)
{
mZoom = aZoom;
if (mDeviceContext)
mDeviceContext->SetZoom(mZoom);
if (mContentViewer) {
nsIDocumentViewer* docv = nsnull;
mContentViewer->QueryInterface(kIDocumentViewerIID, (void**) &docv);
if (nsnull != docv) {
nsIPresContext* cx = nsnull;
docv->GetPresContext(cx);
if (nsnull != cx) {
nsIPresShell *shell = nsnull;
cx->GetShell(&shell);
if (nsnull != shell) {
nsIViewManager *vm = nsnull;
shell->GetViewManager(&vm);
if (nsnull != vm) {
nsIView *rootview = nsnull;
nsIScrollableView *sv = nsnull;
vm->GetRootScrollableView(&sv);
if (nsnull != sv)
sv->ComputeScrollOffsets();
vm->GetRootView(rootview);
if (nsnull != rootview)
vm->UpdateView(rootview, nsnull, 0);
NS_RELEASE(vm);
}
NS_RELEASE(shell);
}
NS_RELEASE(cx);
}
NS_RELEASE(docv);
}
}
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::GetZoom(float *aZoom)
{
*aZoom = mZoom;
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;
}
#define FILE_PROTOCOL "file:///"
static void convertFileToURL(const nsString &aIn, nsString &aOut)
{
#ifdef XP_PC
char szFile[1000];
aIn.ToCString(szFile, sizeof(szFile));
if (PL_strchr(szFile, '\\')) {
PRInt32 len = strlen(szFile);
PRInt32 sum = len + sizeof(FILE_PROTOCOL);
char* lpszFileURL = (char *)PR_Malloc(sum + 1);
// Translate '\' to '/'
for (PRInt32 i = 0; i < len; i++) {
if (szFile[i] == '\\') {
szFile[i] = '/';
}
if (szFile[i] == ':') {
szFile[i] = '|';
}
}
// Build the file URL
PR_snprintf(lpszFileURL, sum, "%s%s", FILE_PROTOCOL, szFile);
aOut = lpszFileURL;
PR_Free((void *)lpszFileURL);
}
else
#endif
{
aOut = aIn;
}
}
NS_IMETHODIMP
nsWebShell::LoadURL(const PRUnichar *aURLSpec,
nsIPostData* aPostData,
PRBool aModifyHistory,
nsURLReloadType aType,
const PRUint32 aLocalIP)
{
// Initialize margnwidth, marginheight. Put scrolling back the way it was
// before the last document was loaded.
InitFrameData(PR_FALSE);
return LoadURL(aURLSpec,"view",aPostData,aModifyHistory,aType, aLocalIP);
}
nsresult
nsWebShell::DoLoadURL(const nsString& aUrlSpec,
const char* aCommand,
nsIPostData* aPostData,
nsURLReloadType aType,
const PRUint32 aLocalIP)
{
// 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
if ((aType == nsURLReload) && (nsnull != mContentViewer)) {
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<nsIURL> docURL = nsDontAddRef<nsIURL>(doc->GetDocumentURL());
// See if they're the same
nsCOMPtr<nsIURL> url;
#ifndef NECKO
NS_NewURL(getter_AddRefs(url), aUrlSpec);
#else
nsresult rv;
NS_WITH_SERVICE(nsIIOService, service, kIOServiceCID, &rv);
if (NS_FAILED(rv)) return rv;
nsIURI *uri = nsnull;
const char *uriSpec = aUrlSpec.GetBuffer();
rv = service->NewURI(uriSpec, nsnull, &uri);
if (NS_FAILED(rv)) return rv;
rv = uri->QueryInterface(nsIURL::GetIID(), (void**)&url);
NS_RELEASE(uri);
if (NS_FAILED(rv)) return rv;
#endif // NECKO
if ((PRBool)docURL->Equals(url)) {
// See if there's a destination anchor
const char* ref;
url->GetRef(&ref);
if (nsnull != ref) {
// Get the pres shell object
nsCOMPtr<nsIPresShell> presShell;
docViewer->GetPresShell(*getter_AddRefs(presShell));
presShell->GoToAnchor(nsAutoString(ref));
return NS_OK;
}
}
}
}
// Stop loading the current document (if any...). This call may result in
// firing an EndLoadURL notification for the old document...
Stop();
// Tell web-shell-container we are loading a new url
if (nsnull != mContainer) {
nsresult rv = mContainer->BeginLoadURL(this, aUrlSpec.GetUnicode());
if (NS_FAILED(rv)) {
return rv;
}
}
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.
* - Radha
*/
return mDocLoader->LoadDocument(aUrlSpec, // URL string
aCommand, // Command
this, // Container
aPostData, // Post Data
nsnull, // Extra Info...
mObserver, // Observer
aType, // reload type
aLocalIP); // load attributes.
}
NS_IMETHODIMP
nsWebShell::LoadURL(const PRUnichar *aURLSpec,
const char* aCommand,
nsIPostData* aPostData,
PRBool aModifyHistory,
nsURLReloadType aType,
const PRUint32 aLocalIP)
{
nsresult rv;
PRInt32 colon, fSlash;
PRUnichar port;
nsAutoString urlSpec;
convertFileToURL(nsString(aURLSpec), urlSpec);
fSlash=urlSpec.Find('/');
// if no scheme (protocol) is found, assume http.
if ( ((colon=urlSpec.Find(':')) == -1) // no colon at all
|| ( (fSlash > -1) && (colon > fSlash) ) // the only colon comes after the first slash
|| ( (colon < urlSpec.Length()-1) // the first char after the first colon is a digit (i.e. a port)
&& ((port=urlSpec.CharAt(colon+1)) <= '9')
&& (port > '0') )) {
// find host name
int hostPos = urlSpec.FindCharInSet("./:");
if (hostPos == -1) {
hostPos = urlSpec.Length();
}
// extract host name
nsAutoString hostSpec;
urlSpec.Left(hostSpec, hostPos);
// insert url spec corresponding to host name
if (hostSpec.EqualsIgnoreCase("www")) {
nsString ftpDef("http://");
urlSpec.Insert(ftpDef, 0, 7);
} else if (hostSpec.EqualsIgnoreCase("ftp")) {
nsString ftpDef("ftp://");
urlSpec.Insert(ftpDef, 0, 6);
} else {
nsString httpDef("http://");
urlSpec.Insert(httpDef, 0, 7);
}
}
mURL = urlSpec.GetUnicode();
/* If this is one of the frames, get it from the top level shell */
if (aModifyHistory) {
nsCOMPtr<nsIWebShell> webShell;
GetRootWebShell(*getter_AddRefs(webShell));
if (webShell)
{
nsCOMPtr<nsISessionHistory> shist;
webShell->GetSessionHistory(*getter_AddRefs(shist));
/* Add yourself to the Session History */
if (shist) {
PRInt32 ret=0;
ret = shist->add(this);
}
}
}
nsString* url = new nsString(urlSpec);
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();
/* The session History may have changed the URL. So pass on the
* right one for loading
*/
const PRUnichar * urlString=nsnull;
GetURL(&urlString);
nsAutoString newURL(urlString);
printf("Loading url %s in WEbshell %x\n", mURL.ToNewCString(), this);
// Give web-shell-container right of refusal
if (nsnull != mContainer) {
rv = mContainer->WillLoadURL(this, mURL.GetUnicode(), nsLoadURL);
if (NS_FAILED(rv)) {
return rv;
}
}
return DoLoadURL(newURL, aCommand, aPostData, aType, aLocalIP);
}
NS_IMETHODIMP nsWebShell::Stop(void)
{
if (nsnull != mContentViewer) {
mContentViewer->Stop();
}
// Cancel any timers that were set for this loader.
CancelRefreshURLTimers();
if (mDocLoader) {
// Stop any documents that are currently being loaded...
mDocLoader->Stop();
}
// Stop the documents being loaded by children too...
PRInt32 i, n = mChildren.Count();
for (i = 0; i < n; i++) {
nsIWebShell* shell = (nsIWebShell*) mChildren.ElementAt(i);
shell->Stop();
}
return NS_OK;
}
NS_IMETHODIMP nsWebShell::Reload(nsURLReloadType aType)
{
nsString* s = (nsString*) mHistory.ElementAt(mHistoryIndex);
if (nsnull != s) {
// XXX What about the post data?
return LoadURL(s->GetUnicode(), nsnull, PR_FALSE, aType);
}
return NS_ERROR_FAILURE;
}
//----------------------------------------
// History methods
NS_IMETHODIMP
nsWebShell::Back(void)
{
return GoTo(mHistoryIndex - 1);
}
NS_IMETHODIMP
nsWebShell::CanBack(void)
{
return (mHistoryIndex > 0 ? NS_OK : NS_COMFALSE);
}
NS_IMETHODIMP
nsWebShell::Forward(void)
{
return GoTo(mHistoryIndex + 1);
}
NS_IMETHODIMP
nsWebShell::CanForward(void)
{
return (mHistoryIndex < mHistory.Count() - 1 ? NS_OK : NS_COMFALSE);
}
NS_IMETHODIMP
nsWebShell::GoTo(PRInt32 aHistoryIndex)
{
nsresult rv = NS_ERROR_ILLEGAL_VALUE;
if ((aHistoryIndex >= 0) &&
(aHistoryIndex < mHistory.Count())) {
nsString* s = (nsString*) mHistory.ElementAt(aHistoryIndex);
// Give web-shell-container right of refusal
nsAutoString urlSpec(*s);
if (nsnull != mContainer) {
rv = mContainer->WillLoadURL(this, urlSpec.GetUnicode(), nsLoadHistory);
if (NS_FAILED(rv)) {
return rv;
}
}
printf("Goto %d\n", aHistoryIndex);
mHistoryIndex = aHistoryIndex;
ShowHistory();
rv = DoLoadURL(urlSpec, // URL string
"view", // Command
nsnull, // Post Data
nsURLReload, // the reload type
0); // load attributes
}
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;
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()
{
#ifdef 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
}
//----------------------------------------
// Chrome API's
NS_IMETHODIMP
nsWebShell::SetTitle(const PRUnichar* aTitle)
{
// Record local title
mTitle = aTitle;
// Title's set on the top level web-shell are passed ont to the container
nsIWebShell* parent;
GetParent(parent);
if (nsnull == parent) {
nsIBrowserWindow *browserWindow = GetBrowserWindow();
if (nsnull != browserWindow) {
browserWindow->SetTitle(aTitle);
NS_RELEASE(browserWindow);
}
} else {
NS_RELEASE(parent);
}
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::GetTitle(const PRUnichar** aResult)
{
*aResult = mTitle.GetUnicode();
return NS_OK;
}
//----------------------------------------------------------------------
// WebShell container implementation
NS_IMETHODIMP
nsWebShell::WillLoadURL(nsIWebShell* aShell, const PRUnichar* aURL, nsLoadType aReason)
{
nsresult rv = NS_OK;
if (nsnull != mContainer) {
rv = mContainer->WillLoadURL(aShell, aURL, aReason);
}
return rv;
}
NS_IMETHODIMP
nsWebShell::BeginLoadURL(nsIWebShell* aShell, const PRUnichar* aURL)
{
if (nsnull != mContainer) {
// XXX: do not propagate this notification up from any frames...
return mContainer->BeginLoadURL(aShell, aURL);
}
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::ProgressLoadURL(nsIWebShell* aShell,
const PRUnichar* aURL,
PRInt32 aProgress,
PRInt32 aProgressMax)
{
nsresult rv = NS_OK;
if (nsnull != mContainer) {
rv = mContainer->ProgressLoadURL(aShell, aURL, aProgress, aProgressMax);
}
return rv;
}
NS_IMETHODIMP
nsWebShell::EndLoadURL(nsIWebShell* aShell, const PRUnichar* aURL, PRInt32 aStatus)
{
nsresult rv = NS_OK;
if (nsnull != mContainer) {
// XXX: do not propagate this notification up from any frames...
return mContainer->EndLoadURL(aShell, aURL, aStatus);
}
return rv;
}
NS_IMETHODIMP
nsWebShell::NewWebShell(PRUint32 aChromeMask,
PRBool aVisible,
nsIWebShell *&aNewWebShell)
{
if (nsnull != mContainer) {
return mContainer->NewWebShell(aChromeMask, aVisible, aNewWebShell);
}
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::ContentShellAdded(nsIWebShell* aChildShell, nsIContent* frameNode)
{
if (nsnull != mContainer) {
return mContainer->ContentShellAdded(aChildShell, frameNode);
}
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::CreatePopup(nsIDOMElement* aElement, nsIDOMElement* aPopupContent,
PRInt32 aXPos, PRInt32 aYPos,
const nsString& aPopupType, const nsString& anAnchorAlignment,
const nsString& aPopupAlignment,
nsIDOMWindow* aWindow)
{
if (nsnull != mContainer) {
return mContainer->CreatePopup(aElement, aPopupContent, aXPos, aYPos, aPopupType,
anAnchorAlignment, aPopupAlignment,
aWindow);
}
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::FindWebShellWithName(const PRUnichar* aName, nsIWebShell*& aResult)
{
if (nsnull != mContainer) {
return mContainer->FindWebShellWithName(aName, aResult);
}
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::FocusAvailable(nsIWebShell* aFocusedWebShell, PRBool& aFocusTaken)
{
//If the WebShell with focus is us, pass this up to container
if (this == aFocusedWebShell && nsnull != mContainer) {
mContainer->FocusAvailable(this, aFocusTaken);
}
nsIWebShell* shell = nsnull;
//Other wise, check children and move focus to next one
PRInt32 i, n = mChildren.Count();
for (i = 0; i < n; i++) {
shell = (nsIWebShell*)mChildren.ElementAt(i);
if (shell == aFocusedWebShell) {
if (++i < n) {
shell = (nsIWebShell*)mChildren.ElementAt(i);
shell->SetFocus();
break;
}
else if (nsnull != mContainer) {
mContainer->FocusAvailable(this, aFocusTaken);
break;
}
}
}
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
mHintCharset = aCharset;
mHintCharsetSource = aSource;
nsAutoString url(aURL);
LoadURL(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
mHintCharset = aCharset;
mHintCharsetSource= aSource;
nsString* s = (nsString*) mHistory.ElementAt(mHistoryIndex);
nsresult rv = NS_OK;
if(s) {
char* url = s->ToNewCString();
if(url) {
mHistoryIndex--;
rv = this->RefreshURL((const char*)url,0,PR_FALSE);
delete [] url;
}
}
return rv;
}
NS_IMETHODIMP
nsWebShell::StopDocumentLoad(void)
{
Stop();
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::SetRendering(PRBool aRender)
{
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, nsIPostData* aPostData = 0);
~OnLinkClickEvent();
void HandleEvent() {
mHandler->HandleLinkClickEvent(mContent, mVerb, mURLSpec->GetUnicode(), mTargetSpec->GetUnicode(), mPostData);
}
nsWebShell* mHandler;
nsString* mURLSpec;
nsString* mTargetSpec;
nsIPostData* mPostData;
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,
nsIPostData* aPostData)
{
nsIEventQueue* eventQueue;
mHandler = aHandler;
NS_ADDREF(aHandler);
mURLSpec = new nsString(aURLSpec);
mTargetSpec = new nsString(aTargetSpec);
mPostData = aPostData;
NS_IF_ADDREF(mPostData);
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(mPostData);
if (nsnull != mURLSpec) delete mURLSpec;
if (nsnull != mTargetSpec) delete mTargetSpec;
}
//----------------------------------------
NS_IMETHODIMP
nsWebShell::OnLinkClick(nsIContent* aContent,
nsLinkVerb aVerb,
const PRUnichar* aURLSpec,
const PRUnichar* aTargetSpec,
nsIPostData* aPostData)
{
OnLinkClickEvent* ev;
nsresult rv = NS_OK;
ev = new OnLinkClickEvent(this, aContent, aVerb, aURLSpec,
aTargetSpec, aPostData);
if (nsnull == ev) {
rv = NS_ERROR_OUT_OF_MEMORY;
}
return rv;
}
// Find the web shell in the entire tree that we can reach that the
// link click should go to.
// XXX This doesn't yet know how to target other windows with their
// own tree
nsIWebShell*
nsWebShell::GetTarget(const PRUnichar* aName)
{
nsAutoString name(aName);
nsIWebShell* target = nsnull;
if (0 == name.Length()) {
NS_ADDREF_THIS();
return this;
}
if (name.EqualsIgnoreCase("_blank")) {
nsIWebShell *shell;
if (NS_OK == NewWebShell(PRUint32(~0), PR_TRUE, shell))
target = shell;
else
{
//don't know what to do here? MMP
NS_ASSERTION(PR_FALSE, "unable to get new webshell");
}
}
else if (name.EqualsIgnoreCase("_self")) {
target = this;
NS_ADDREF(target);
}
else if (name.EqualsIgnoreCase("_parent")) {
if (nsnull == mParent) {
target = this;
}
else {
target = mParent;
}
NS_ADDREF(target);
}
else if (name.EqualsIgnoreCase("_top")) {
GetRootWebShell(target); // this addrefs, which is OK
}
else {
// Look from the top of the tree downward
if (nsnull != mContainer) {
mContainer->FindWebShellWithName(aName, target);
if (nsnull == target) {
mContainer->NewWebShell(PRUint32(~0), PR_TRUE, target);
}
if (nsnull != target) {
target->SetName(aName);
}
else {
target = this;
NS_ADDREF(target);
}
}
}
return target;
}
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,
nsIPostData* aPostData)
{
nsAutoString target(aTargetSpec);
switch(aVerb) {
case eLinkVerb_New:
target.SetString("_blank");
// Fall into replace case
case eLinkVerb_Replace:
{
nsIWebShell* shell = GetTarget(target.GetUnicode());
if (nsnull != shell) {
shell->LoadURL(aURLSpec, aPostData);
NS_RELEASE(shell);
}
}
break;
case eLinkVerb_Embed:
default:
;
// XXX Need to do this
}
}
NS_IMETHODIMP
nsWebShell::OnOverLink(nsIContent* aContent,
const PRUnichar* aURLSpec,
const PRUnichar* aTargetSpec)
{
if (!mOverURL.Equals(aURLSpec) || !mOverTarget.Equals(aTargetSpec)) {
#ifdef NOISY_LINKS
fputs("Was '", stdout);
fputs(mOverURL, stdout);
fputs("' '", stdout);
fputs(mOverTarget, stdout);
fputs("'\n", stdout);
fputs("Over link '", stdout);
fputs(aURLSpec, stdout);
fputs("' '", stdout);
fputs(aTargetSpec, stdout);
fputs("'\n", stdout);
#endif /* NS_DEBUG */
mOverURL = aURLSpec;
mOverTarget = aTargetSpec;
// Get the browser window and setStatus
nsIBrowserWindow *browserWindow;
browserWindow = GetBrowserWindow();
if (nsnull != browserWindow) {
browserWindow->SetStatus(aURLSpec);
NS_RELEASE(browserWindow);
}
}
return NS_OK;
}
NS_IMETHODIMP
nsWebShell:: GetLinkState(const PRUnichar* aURLSpec, nsLinkState& aState)
{
nsString URLSpec(aURLSpec);
aState = eLinkState_Unvisited;
nsresult rv;
// XXX: GlobalHistory is going to be moved out of the webshell into a more appropriate place.
if (nsnull == mHistoryService) {
rv = nsServiceManager::GetService(kGlobalHistoryCID,
nsIGlobalHistory::GetIID(),
(nsISupports**) &mHistoryService);
if (NS_FAILED(rv))
return NS_OK; // XXX Okay, we couldn't color the link. Big deal.
}
// XXX aURLSpec should really be a char*, not a PRUnichar*.
nsAutoString urlStr(aURLSpec);
char buf[256];
char* url = buf;
if (urlStr.Length() >= 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;
}
//----------------------------------------------------------------------
nsIBrowserWindow* nsWebShell::GetBrowserWindow()
{
nsIBrowserWindow *browserWindow = nsnull;
nsIWebShell *rootWebShell;
GetRootWebShellEvenIfChrome(rootWebShell);
if (nsnull != rootWebShell) {
nsIWebShellContainer *rootContainer;
rootWebShell->GetContainer(rootContainer);
if (nsnull != rootContainer) {
rootContainer->QueryInterface(kIBrowserWindowIID, (void**)&browserWindow);
NS_RELEASE(rootContainer);
}
NS_RELEASE(rootWebShell);
}
return browserWindow;
}
nsresult
nsWebShell::CreateScriptEnvironment()
{
nsresult res = NS_OK;
if (nsnull == mScriptGlobal) {
res = NS_NewScriptGlobalObject(&mScriptGlobal);
if (NS_FAILED(res)) {
return res;
}
mScriptGlobal->SetWebShell(this);
}
if (nsnull == mScriptContext) {
res = NS_CreateContext(mScriptGlobal, &mScriptContext);
}
return res;
}
nsresult
nsWebShell::GetScriptContext(nsIScriptContext** aContext)
{
NS_PRECONDITION(nsnull != aContext, "null arg");
nsresult res = NS_OK;
res = CreateScriptEnvironment();
if (NS_SUCCEEDED(res)) {
*aContext = mScriptContext;
NS_ADDREF(mScriptContext);
}
return res;
}
nsresult
nsWebShell::GetScriptGlobalObject(nsIScriptGlobalObject** aGlobal)
{
NS_PRECONDITION(nsnull != aGlobal, "null arg");
nsresult res = NS_OK;
res = CreateScriptEnvironment();
if (NS_SUCCEEDED(res)) {
*aGlobal = mScriptGlobal;
NS_IF_ADDREF(mScriptGlobal);
}
return res;
}
nsresult
nsWebShell::ReleaseScriptContext(nsIScriptContext *aContext)
{
// XXX Is this right? Why are we passing in a context?
NS_IF_RELEASE(aContext);
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::OnStartDocumentLoad(nsIDocumentLoader* loader,
nsIURL* aURL,
const char* aCommand)
{
#if DEBUG_nisheeth
const char* spec;
aURL->GetSpec(&spec);
printf("nsWebShell::OnStartDocumentLoad:%p: loader=%p url=%s command=%s\n", this, loader, spec, aCommand);
#endif
nsIDocumentViewer* docViewer;
nsresult rv = NS_ERROR_FAILURE;
if ((nsnull != 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);
}
}
/*
*Fire the OnStartDocumentLoad of the webshell observer
*/
if ((nsnull != mContainer) && (nsnull != mDocLoaderObserver))
{
mDocLoaderObserver->OnStartDocumentLoad(mDocLoader, aURL, aCommand);
}
return rv;
}
NS_IMETHODIMP
nsWebShell::OnEndDocumentLoad(nsIDocumentLoader* loader,
nsIURL* aURL,
PRInt32 aStatus,
nsIDocumentLoaderObserver * aWebShell)
{
#if DEBUG_nisheeth
const char* spec;
aURL->GetSpec(&spec);
printf("nsWebShell::OnEndDocumentLoad:%p: loader=%p url=%s status=%d\n", this, loader, spec, aStatus);
#endif
nsresult rv = NS_ERROR_FAILURE;
if (!mProcessedEndDocumentLoad) {
mProcessedEndDocumentLoad = PR_TRUE;
if (nsnull != mScriptGlobal) {
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);
}
}
// Fire the EndLoadURL of the web shell container
if (nsnull != aURL) {
nsAutoString urlString;
const char* spec;
rv = aURL->GetSpec(&spec);
if (NS_SUCCEEDED(rv)) {
urlString = spec;
if (nsnull != mContainer) {
rv = mContainer->EndLoadURL(this, urlString.GetUnicode(), 0);
}
}
}
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<nsIWebShell> root;
GetRootWebShell(*getter_AddRefs(root));
if (root)
root->GetDocLoaderObserver(*getter_AddRefs(dlObserver));
}
else
{
dlObserver = do_QueryInterface(mDocLoaderObserver); // we need this to addref
}
/*
* Fire the OnEndDocumentLoad of the DocLoaderobserver
*/
if (dlObserver && (nsnull != aURL)) {
dlObserver->OnEndDocumentLoad(mDocLoader, aURL, aStatus, aWebShell);
}
} //!mProcessedEndDocumentLoad
else {
rv = NS_OK;
}
return rv;
}
NS_IMETHODIMP
nsWebShell::OnStartURLLoad(nsIDocumentLoader* loader,
nsIURL* aURL,
const char* aContentType,
nsIContentViewer* aViewer)
{
// XXX This is a temporary hack for meeting the M4 milestone
// for seamonkey. I think Netlib should send a message to all stream listeners
// when it changes the URL like this. That would mean adding a new method
// to nsIStreamListener. Need to talk to Rick, Kipp, Gagan about this.
/* Overriding comments: History mechanism has changed. So is Necko changing.
* Need to check in the new world if this is still valid. If so, new methods
* need to be added to nsISessionHistory. Until then. We don't need this.
* This is being done so that old History code can be removed.
*/
// CheckForTrailingSlash(aURL);
/*
*Fire the OnStartDocumentLoad of the webshell observer
*/
if ((nsnull != mContainer) && (nsnull != mDocLoaderObserver))
{
mDocLoaderObserver->OnStartURLLoad(mDocLoader, aURL, aContentType, aViewer);
}
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::OnProgressURLLoad(nsIDocumentLoader* loader,
nsIURL* aURL,
PRUint32 aProgress,
PRUint32 aProgressMax)
{
/*
*Fire the OnStartDocumentLoad of the webshell observer and container...
*/
if ((nsnull != mContainer) && (nsnull != mDocLoaderObserver))
{
mDocLoaderObserver->OnProgressURLLoad(mDocLoader, aURL, aProgress, aProgressMax);
}
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::OnStatusURLLoad(nsIDocumentLoader* loader,
nsIURL* aURL,
nsString& aMsg)
{
/*
*Fire the OnStartDocumentLoad of the webshell observer and container...
*/
if ((nsnull != mContainer) && (nsnull != mDocLoaderObserver))
{
mDocLoaderObserver->OnStatusURLLoad(mDocLoader, aURL, aMsg);
}
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::OnEndURLLoad(nsIDocumentLoader* loader,
nsIURL* aURL,
PRInt32 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 OnStartDocumentLoad of the webshell observer
*/
if ((nsnull != mContainer) && (nsnull != mDocLoaderObserver))
{
mDocLoaderObserver->OnEndURLLoad(mDocLoader, aURL, aStatus);
}
return NS_OK;
}
/* For use with redirect/refresh url api */
class refreshData : public nsITimerCallback
{
public:
refreshData();
NS_DECL_ISUPPORTS
// nsITimerCallback interface
virtual void Notify(nsITimer *timer);
nsIWebShell* mShell;
nsString mUrlSpec;
PRBool mRepeat;
PRInt32 mDelay;
protected:
virtual ~refreshData();
};
refreshData::refreshData()
{
NS_INIT_REFCNT();
mShell = nsnull;
}
refreshData::~refreshData()
{
NS_IF_RELEASE(mShell);
}
NS_IMPL_ISUPPORTS(refreshData, kITimerCallbackIID);
void refreshData::Notify(nsITimer *aTimer)
{
NS_PRECONDITION((nsnull != mShell), "Null pointer...");
if (nsnull != mShell) {
mShell->LoadURL(mUrlSpec.GetUnicode(), nsnull, PR_TRUE, nsURLReload);
}
/*
* LoadURL(...) will cancel all refresh timers... This causes the Timer and
* its refreshData instance to be released...
*/
}
NS_IMETHODIMP
nsWebShell::RefreshURL(nsIURL* aURL, PRInt32 millis, PRBool repeat)
{
nsresult rv = NS_OK;
if (nsnull == aURL) {
NS_PRECONDITION((aURL != nsnull), "Null pointer");
rv = NS_ERROR_NULL_POINTER;
goto done;
}
const char* spec;
aURL->GetSpec(&spec);
rv = RefreshURL(spec, millis, repeat);
done:
return rv;
}
NS_IMETHODIMP
nsWebShell::RefreshURL(const char* aURL, PRInt32 millis, PRBool repeat)
{
nsresult rv = NS_OK;
nsITimer *timer=nsnull;
refreshData *data;
if (nsnull == aURL) {
NS_PRECONDITION((aURL != nsnull), "Null pointer");
rv = NS_ERROR_NULL_POINTER;
goto done;
}
NS_NEWXPCOM(data, refreshData);
if (nsnull == data) {
rv = NS_ERROR_OUT_OF_MEMORY;
goto done;
}
// Set the reference count to one...
NS_ADDREF(data);
data->mShell = this;
NS_ADDREF(data->mShell);
data->mUrlSpec = aURL;
data->mDelay = millis;
data->mRepeat = repeat;
/* Create the timer. */
if (NS_OK == NS_NewTimer(&timer)) {
/* Add the timer to our array. */
NS_LOCK_INSTANCE();
mRefreshments.AppendElement(timer);
timer->Init(data, millis);
NS_UNLOCK_INSTANCE();
}
NS_RELEASE(data);
done:
return rv;
}
NS_IMETHODIMP
nsWebShell::CancelRefreshURLTimers(void)
{
PRInt32 i;
nsITimer* timer;
/* Right now all we can do is cancel all the timers for this webshell. */
NS_LOCK_INSTANCE();
/* Walk the list backwards to avoid copying the array as it shrinks.. */
for (i = mRefreshments.Count()-1; (0 <= i); i--) {
timer=(nsITimer*)mRefreshments.ElementAt(i);
/* Remove the entry from the list before releasing the timer.*/
mRefreshments.RemoveElementAt(i);
if (timer) {
timer->Cancel();
NS_RELEASE(timer);
}
}
NS_UNLOCK_INSTANCE();
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(nsIURL* aURL)
{
nsString* historyURL = (nsString*) mHistory.ElementAt(mHistoryIndex);
const char* spec;
aURL->GetSpec(&spec);
nsString* newURL = (nsString*) new nsString(spec);
if (newURL && newURL->Last() == '/' && !historyURL->Equals(*newURL)) {
// Replace the top most history entry with the new url
if (nsnull != historyURL) {
delete historyURL;
}
mHistory.ReplaceElementAt(newURL, mHistoryIndex);
} else
delete newURL;
return NS_OK;
}
#if 0
NS_IMETHODIMP
nsWebShell::OnStartBinding(nsIURL* aURL, const char *aContentType)
{
nsresult rv = NS_OK;
if (nsnull != mObserver) {
rv = mObserver->OnStartBinding(aURL, aContentType);
}
return rv;
}
NS_IMETHODIMP
nsWebShell::OnProgress(nsIURL* aURL, PRUint32 aProgress, PRUint32 aProgressMax)
{
nsresult rv = NS_OK;
if (nsnull != mObserver) {
rv = mObserver->OnProgress(aURL, aProgress, aProgressMax);
}
// Pass status messages out to the nsIBrowserWindow...
nsIBrowserWindow *browserWindow;
browserWindow = GetBrowserWindow();
if (nsnull != browserWindow) {
browserWindow->SetProgress(aProgress, aProgressMax);
NS_RELEASE(browserWindow);
}
return rv;
}
NS_IMETHODIMP
nsWebShell::OnStatus(nsIURL* aURL, const PRUnichar* aMsg)
{
nsresult rv = NS_OK;
if (nsnull != mObserver) {
rv = mObserver->OnStatus(aURL, aMsg);
}
// Pass status messages out to the nsIBrowserWindow...
nsIBrowserWindow *browserWindow;
browserWindow = GetBrowserWindow();
if (nsnull != browserWindow) {
browserWindow->SetStatus(aMsg);
NS_RELEASE(browserWindow);
}
return rv;
}
NS_IMETHODIMP
nsWebShell::OnStopBinding(nsIURL* aURL, nsresult aStatus, const PRUnichar* aMsg)
{
nsresult rv = NS_OK;
if (nsnull != mObserver) {
rv = mObserver->OnStopBinding(aURL, aStatus, aMsg);
}
return rv;
}
#endif /* 0 */
//----------------------------------------------------------------------
NS_IMETHODIMP_(void)
nsWebShell::Alert(const nsString &aText)
{
if (nsnull != mNetSupport) {
mNetSupport->Alert(aText);
}
}
NS_IMETHODIMP_(PRBool)
nsWebShell::Confirm(const nsString &aText)
{
PRBool bResult = PR_FALSE;
if (nsnull != mNetSupport) {
bResult = mNetSupport->Confirm(aText);
}
return bResult;
}
NS_IMETHODIMP_(PRBool)
nsWebShell::Prompt(const nsString &aText,
const nsString &aDefault,
nsString &aResult)
{
PRBool bResult = PR_FALSE;
if (nsnull != mNetSupport) {
bResult = mNetSupport->Prompt(aText, aDefault, aResult);
}
return bResult;
}
NS_IMETHODIMP_(PRBool)
nsWebShell::PromptUserAndPassword(const nsString &aText,
nsString &aUser,
nsString &aPassword)
{
PRBool bResult = PR_FALSE;
if (nsnull != mNetSupport) {
bResult = mNetSupport->PromptUserAndPassword(aText, aUser, aPassword);
}
return bResult;
}
NS_IMETHODIMP_(PRBool)
nsWebShell::PromptPassword(const nsString &aText,
nsString &aPassword)
{
PRBool bResult = PR_FALSE;
if (nsnull != mNetSupport) {
bResult = mNetSupport->PromptPassword(aText, aPassword);
}
return bResult;
}
//----------------------------------------------------
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)
{
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsWebShell::SelectNone(void)
{
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsWebShell::GetDefaultCharacterSet (const PRUnichar** aDefaultCharacterSet)
{
*aDefaultCharacterSet = mDefaultCharacterSet.GetUnicode();
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::SetDefaultCharacterSet (const PRUnichar* aDefaultCharacterSet)
{
mDefaultCharacterSet = aDefaultCharacterSet;
PRInt32 i, n = mChildren.Count();
for (i = 0; i < n; i++) {
nsIWebShell* child = (nsIWebShell*) mChildren.ElementAt(i);
if (nsnull != child) {
child->SetDefaultCharacterSet(aDefaultCharacterSet);
}
}
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::GetForceCharacterSet (const PRUnichar** aForceCharacterSet)
{
nsString emptyStr = "";
if (mForceCharacterSet.Equals(emptyStr)) {
*aForceCharacterSet = nsnull;
}
else {
*aForceCharacterSet = mForceCharacterSet.GetUnicode();
}
return NS_OK;
}
NS_IMETHODIMP
nsWebShell::SetForceCharacterSet (const PRUnichar* aForceCharacterSet)
{
mForceCharacterSet = aForceCharacterSet;
PRInt32 i, n = mChildren.Count();
for (i = 0; i < n; i++) {
nsIWebShell* child = (nsIWebShell*) mChildren.ElementAt(i);
if (nsnull != child) {
child->SetForceCharacterSet(aForceCharacterSet);
}
}
return NS_OK;
}
NS_IMETHODIMP nsWebShell::GetCharacterSetHint (const PRUnichar** oHintCharset, nsCharsetSource* oSource)
{
*oSource = mHintCharsetSource;
if(kCharsetUninitialized == mHintCharsetSource) {
*oHintCharset = nsnull;
} else {
*oHintCharset = mHintCharset.GetUnicode();
// clean up after we access it.
mHintCharsetSource = kCharsetUninitialized;
}
return NS_OK;
}
//----------------------------------------------------
NS_IMETHODIMP
nsWebShell::FindNext(const PRUnichar * aSearchStr, PRBool aMatchCase, PRBool aSearchDown, PRBool &aIsFound)
{
return NS_ERROR_FAILURE;
}
//----------------------------------------------------------------------
// Factory code for creating nsWebShell's
class nsWebShellFactory : public nsIFactory
{
public:
nsWebShellFactory();
virtual ~nsWebShellFactory();
// nsISupports methods
NS_IMETHOD QueryInterface(const nsIID &aIID, void **aResult);
NS_IMETHOD_(nsrefcnt) AddRef(void);
NS_IMETHOD_(nsrefcnt) Release(void);
// nsIFactory methods
NS_IMETHOD CreateInstance(nsISupports *aOuter,
const nsIID &aIID,
void **aResult);
NS_IMETHOD LockFactory(PRBool aLock);
private:
// XXX TEMPORARY placeholder for starting up some
// services in lieu of a service manager.
static void StartServices();
static PRBool mStartedServices;
nsrefcnt mRefCnt;
};
PRBool nsWebShellFactory::mStartedServices = PR_FALSE;
void
nsWebShellFactory::StartServices()
{
// XXX TEMPORARY Till we have real pluggable protocol handlers
NET_InitJavaScriptProtocol();
mStartedServices = PR_TRUE;
}
nsWebShellFactory::nsWebShellFactory()
{
if (!mStartedServices) {
StartServices();
}
mRefCnt = 0;
}
nsWebShellFactory::~nsWebShellFactory()
{
NS_ASSERTION(mRefCnt == 0, "non-zero refcnt at destruction");
}
nsresult
nsWebShellFactory::QueryInterface(const nsIID &aIID, void **aResult)
{
if (aResult == NULL) {
return NS_ERROR_NULL_POINTER;
}
// Always NULL result, in case of failure
*aResult = NULL;
if (aIID.Equals(kISupportsIID)) {
*aResult = (void *)(nsISupports*)this;
} else if (aIID.Equals(kIFactoryIID)) {
*aResult = (void *)(nsIFactory*)this;
}
if (*aResult == NULL) {
return NS_NOINTERFACE;
}
NS_ADDREF_THIS(); // Increase reference count for caller
return NS_OK;
}
nsrefcnt
nsWebShellFactory::AddRef()
{
return ++mRefCnt;
}
nsrefcnt
nsWebShellFactory::Release()
{
if (--mRefCnt == 0) {
delete this;
return 0; // Don't access mRefCnt after deleting!
}
return mRefCnt;
}
nsresult
nsWebShellFactory::CreateInstance(nsISupports *aOuter,
const nsIID &aIID,
void **aResult)
{
nsresult rv;
nsWebShell *inst;
if (aResult == NULL) {
return NS_ERROR_NULL_POINTER;
}
*aResult = NULL;
if (nsnull != aOuter) {
rv = NS_ERROR_NO_AGGREGATION;
goto done;
}
NS_NEWXPCOM(inst, nsWebShell);
if (inst == NULL) {
rv = NS_ERROR_OUT_OF_MEMORY;
goto done;
}
NS_ADDREF(inst);
rv = inst->QueryInterface(aIID, aResult);
NS_RELEASE(inst);
done:
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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