/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* ***** BEGIN LICENSE BLOCK ***** * Version: NPL 1.1/GPL 2.0/LGPL 2.1 * * The contents of this file are subject to the Netscape Public License * Version 1.1 (the "License"); you may not use this file except in * compliance with the License. You may obtain a copy of the License at * http://www.mozilla.org/NPL/ * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License * for the specific language governing rights and limitations under the * License. * * The Original Code is mozilla.org code. * * The Initial Developer of the Original Code is * Netscape Communications Corporation. * Portions created by the Initial Developer are Copyright (C) 1999 * the Initial Developer. All Rights Reserved. * * Contributor(s): * Pierre Phaneuf * * Alternatively, the contents of this file may be used under the terms of * either the GNU General Public License Version 2 or later (the "GPL"), or * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), * in which case the provisions of the GPL or the LGPL are applicable instead * of those above. If you wish to allow use of your version of this file only * under the terms of either the GPL or the LGPL, and not to allow others to * use your version of this file under the terms of the NPL, indicate your * decision by deleting the provisions above and replace them with the notice * and other provisions required by the GPL or the LGPL. If you do not delete * the provisions above, a recipient may use your version of this file under * the terms of any one of the NPL, the GPL or the LGPL. * * ***** END LICENSE BLOCK ***** */ #include "nsCOMPtr.h" #include "nsAutoLock.h" #include "nsString.h" #include "nsReadableUtils.h" #include "nsUnicharUtils.h" #include "nsVoidArray.h" #include "rdf.h" #include "nsIBaseWindow.h" #include "nsIWidget.h" #include "nsIDOMWindow.h" #include "nsIDOMWindowInternal.h" #include "nsIDOMElement.h" #include "nsIDocumentViewer.h" #include "nsIDocument.h" #include "nsIDOMDocument.h" #include "nsIRDFContainer.h" #include "nsIRDFContainerUtils.h" #include "nsIRDFDataSource.h" #include "nsIRDFNode.h" #include "nsIRDFObserver.h" #include "nsIRDFService.h" #include "nsIServiceManager.h" #include "nsISimpleEnumerator.h" #include "nsIWebShell.h" #include "nsAppShellWindowEnumerator.h" #include "nsRDFCID.h" #include "nsWindowMediator.h" #include "nsXPIDLString.h" // Interfaces Needed #include "nsIDocShell.h" #include "nsIInterfaceRequestor.h" #include "nsIInterfaceRequestorUtils.h" #include "nsIXULWindow.h" static NS_DEFINE_CID(kRDFInMemoryDataSourceCID, NS_RDFINMEMORYDATASOURCE_CID); static NS_DEFINE_CID(kRDFServiceCID, NS_RDFSERVICE_CID); static NS_DEFINE_CID(kRDFContainerUtilsCID, NS_RDFCONTAINERUTILS_CID); static NS_DEFINE_CID(kRDFContainerCID, NS_RDFCONTAINER_CID); static const char kURINC_WindowMediatorRoot[] = "NC:WindowMediatorRoot"; DEFINE_RDF_VOCAB(NC_NAMESPACE_URI, NC, Name); DEFINE_RDF_VOCAB(NC_NAMESPACE_URI, NC, URL); DEFINE_RDF_VOCAB(NC_NAMESPACE_URI, NC, KeyIndex); static nsIRDFService* gRDFService = nsnull; static nsresult GetDOMWindow( nsIXULWindow* inWindow, nsCOMPtr< nsIDOMWindowInternal>& outDOMWindow); static nsCOMPtr GetDOMNodeFromDocShell(nsIDocShell *aShell); static void GetAttribute( nsIXULWindow* inWindow, const nsAString& inAttribute, nsAString& outValue); static void GetWindowType( nsIXULWindow* inWindow, nsAutoString& outType); static inline PRUint32 GetWindowZ( nsIXULWindow *inWindow); static nsresult NS_NewMediatorListRDFContainer(nsIRDFDataSource* aDataSource, nsIRDFResource* aResource, nsIRDFContainer** aResult) { nsresult rv; rv = nsComponentManager::CreateInstance( kRDFContainerCID, NULL, NS_GET_IID(nsIRDFContainer), (void**)aResult); if (NS_FAILED(rv)) return rv; rv = (*aResult)->Init(aDataSource, aResource); if (NS_FAILED(rv)) { NS_RELEASE(*aResult); } return rv; } nsresult GetDOMWindow( nsIXULWindow* inWindow, nsCOMPtr< nsIDOMWindowInternal>& outDOMWindow) { nsCOMPtr docShell; inWindow->GetDocShell(getter_AddRefs(docShell)); outDOMWindow = do_GetInterface(docShell); return outDOMWindow ? NS_OK : NS_ERROR_FAILURE; } nsCOMPtr GetDOMNodeFromDocShell(nsIDocShell *aShell) { nsCOMPtr node; nsCOMPtr cv; aShell->GetContentViewer(getter_AddRefs(cv)); if (cv) { nsCOMPtr docv(do_QueryInterface(cv)); if (docv) { nsCOMPtr doc; docv->GetDocument(*getter_AddRefs(doc)); if (doc) { nsCOMPtr domdoc(do_QueryInterface(doc)); if (domdoc) { nsCOMPtr element; domdoc->GetDocumentElement(getter_AddRefs(element)); if (element) node = do_QueryInterface(element); } } } } return node; } void GetAttribute( nsIXULWindow* inWindow, const nsAString& inAttribute, nsAString& outValue) { nsCOMPtr shell; if ( inWindow && NS_SUCCEEDED(inWindow->GetDocShell(getter_AddRefs(shell)))) { nsCOMPtr node( GetDOMNodeFromDocShell(shell)); if (node) { nsCOMPtr webshellElement( do_QueryInterface(node)); if ( webshellElement.get()) webshellElement->GetAttribute(nsAutoString(inAttribute), outValue); } } } void GetWindowType(nsIXULWindow* inWindow, nsAString& outType) { GetAttribute(inWindow, NS_LITERAL_STRING("windowtype"), outType); } /* return an integer corresponding to the relative z order of the window. should probably be an explicit read-only method on nsIXULWindow */ PRUint32 GetWindowZ(nsIXULWindow *inWindow) { PRUint32 order; inWindow->GetZlevel(&order); return order; } nsIRDFResource *nsWindowMediator::kNC_WindowMediatorRoot = NULL; nsIRDFResource *nsWindowMediator::kNC_Name = NULL; nsIRDFResource *nsWindowMediator::kNC_URL = NULL; nsIRDFResource *nsWindowMediator::kNC_KeyIndex = NULL; PRInt32 nsWindowMediator::gRefCnt; nsIRDFDataSource *nsWindowMediator::mInner = NULL; nsWindowMediator::nsWindowMediator() : mEnumeratorList(), mOldestWindow(0), mTopmostWindow(0), mTimeStamp(0), mListLock(0) { NS_INIT_REFCNT(); // This should really be done in the static constructor fn. nsresult rv; rv = Init(); NS_ASSERTION(NS_SUCCEEDED(rv), "uh oh, couldn't Init() for some reason"); } nsWindowMediator::~nsWindowMediator() { if (--gRefCnt == 0) { // Delete data while (mOldestWindow) UnregisterWindow(mOldestWindow); // unregister this from the RDF service if (gRDFService) { gRDFService->UnregisterDataSource(this); nsServiceManager::ReleaseService(kRDFServiceCID, gRDFService); gRDFService = nsnull; } NS_IF_RELEASE(kNC_WindowMediatorRoot); NS_IF_RELEASE(kNC_Name); NS_IF_RELEASE(kNC_URL); NS_IF_RELEASE(kNC_KeyIndex); NS_IF_RELEASE(mInner); if (mListLock) PR_DestroyLock(mListLock); } } NS_IMETHODIMP nsWindowMediator::RegisterWindow(nsIXULWindow* inWindow) { if (inWindow == NULL) return NS_ERROR_INVALID_ARG; mTimeStamp++; // Create window info struct and add to list of windows nsWindowInfo* windowInfo = new nsWindowInfo (inWindow, mTimeStamp); if (windowInfo == NULL) return NS_ERROR_OUT_OF_MEMORY; nsresult returnValue = AddWindowToRDF(windowInfo); if (NS_FAILED(returnValue)) { delete windowInfo; return returnValue; } nsAutoLock lock(mListLock); if (mOldestWindow) windowInfo->InsertAfter(mOldestWindow->mOlder, 0); else mOldestWindow = windowInfo; return NS_OK; } NS_IMETHODIMP nsWindowMediator::UnregisterWindow(nsIXULWindow* inWindow) { // Find Window info nsWindowInfo *info, *listEnd; nsAutoLock lock(mListLock); info = mOldestWindow; listEnd = 0; while (info != listEnd) { if (info->mWindow.get() == inWindow) return UnregisterWindow(info); info = info->mYounger; listEnd = mOldestWindow; } return NS_ERROR_INVALID_ARG; } NS_IMETHODIMP nsWindowMediator::UnregisterWindow(nsWindowInfo *inInfo) { // Inform the iterators PRInt32 index = -1; while (++index < mEnumeratorList.Count()) ((nsAppShellWindowEnumerator*)mEnumeratorList[index])->WindowRemoved(inInfo); // Remove From RDF nsCOMPtr container; nsresult rv = NS_NewMediatorListRDFContainer(mInner, kNC_WindowMediatorRoot, getter_AddRefs(container)); if (NS_SUCCEEDED(rv)) container->RemoveElement(inInfo->mRDFID, PR_TRUE); // Remove from the lists and free up if (inInfo == mOldestWindow) mOldestWindow = inInfo->mYounger; if (inInfo == mTopmostWindow) mTopmostWindow = inInfo->mLower; inInfo->Unlink(PR_TRUE, PR_TRUE); if (inInfo == mOldestWindow) mOldestWindow = 0; if (inInfo == mTopmostWindow) mTopmostWindow = 0; delete inInfo; // inform WindowWatcher nsWindowInfo *info = MostRecentWindowInfo(0); nsCOMPtr domWindow; if (info && info->mWindow) { nsCOMPtr idomWindow; GetDOMWindow(info->mWindow, idomWindow); domWindow = do_QueryInterface(idomWindow); } // failure or no more windows sets it to 0, which is acceptable mWatcher->SetActiveWindow(domWindow); return NS_OK; } NS_METHOD nsWindowMediator::GetEnumerator( const PRUnichar* inType, nsISimpleEnumerator** outEnumerator) { if (outEnumerator == NULL) return NS_ERROR_INVALID_ARG; nsAutoLock lock(mListLock); nsAppShellWindowEnumerator *enumerator = new nsASDOMWindowEarlyToLateEnumerator(inType, *this); if (enumerator) return enumerator->QueryInterface(NS_GET_IID(nsISimpleEnumerator) , (void**)outEnumerator); return NS_ERROR_OUT_OF_MEMORY; } NS_METHOD nsWindowMediator::GetXULWindowEnumerator(const PRUnichar* inType, nsISimpleEnumerator** outEnumerator) { if (outEnumerator == NULL) return NS_ERROR_INVALID_ARG; nsAutoLock lock(mListLock); nsAppShellWindowEnumerator *enumerator = new nsASXULWindowEarlyToLateEnumerator(inType, *this); if (enumerator) return enumerator->QueryInterface( NS_GET_IID(nsISimpleEnumerator) , (void**)outEnumerator); return NS_ERROR_OUT_OF_MEMORY; } NS_METHOD nsWindowMediator::GetZOrderDOMWindowEnumerator( const PRUnichar *aWindowType, PRBool aFrontToBack, nsISimpleEnumerator **_retval) { if (!_retval) return NS_ERROR_INVALID_ARG; nsAutoLock lock(mListLock); nsAppShellWindowEnumerator *enumerator; if (aFrontToBack) enumerator = new nsASDOMWindowFrontToBackEnumerator(aWindowType, *this); else enumerator = new nsASDOMWindowBackToFrontEnumerator(aWindowType, *this); if (enumerator) return enumerator->QueryInterface(NS_GET_IID(nsISimpleEnumerator), (void**) _retval); return NS_ERROR_OUT_OF_MEMORY; } NS_METHOD nsWindowMediator::GetZOrderXULWindowEnumerator( const PRUnichar *aWindowType, PRBool aFrontToBack, nsISimpleEnumerator **_retval) { if (!_retval) return NS_ERROR_INVALID_ARG; nsAutoLock lock(mListLock); nsAppShellWindowEnumerator *enumerator; if (aFrontToBack) enumerator = new nsASXULWindowFrontToBackEnumerator(aWindowType, *this); else enumerator = new nsASXULWindowBackToFrontEnumerator(aWindowType, *this); if (enumerator) return enumerator->QueryInterface(NS_GET_IID(nsISimpleEnumerator), (void**) _retval); return NS_ERROR_OUT_OF_MEMORY; } PRInt32 nsWindowMediator::AddEnumerator(nsAppShellWindowEnumerator * inEnumerator) { return mEnumeratorList.AppendElement(inEnumerator); } PRInt32 nsWindowMediator::RemoveEnumerator( nsAppShellWindowEnumerator * inEnumerator) { return mEnumeratorList.RemoveElement(inEnumerator); } /* Returns the window of type inType ( if null return any window type ) which has the most recent time stamp */ NS_IMETHODIMP nsWindowMediator::GetMostRecentWindow( const PRUnichar* inType, nsIDOMWindowInternal** outWindow) { NS_ENSURE_ARG_POINTER(outWindow); *outWindow = NULL; // Find the most window with the highest time stamp that matches // the requested type nsAutoLock lock(mListLock); nsWindowInfo *info = MostRecentWindowInfo(inType); if (info && info->mWindow) { nsCOMPtr DOMWindow; if(NS_SUCCEEDED(GetDOMWindow(info->mWindow, DOMWindow))) { *outWindow = DOMWindow; NS_ADDREF(*outWindow); return NS_OK; } return NS_ERROR_FAILURE; } return NS_OK; } nsWindowInfo * nsWindowMediator::MostRecentWindowInfo(const PRUnichar* inType) { PRInt32 lastTimeStamp = -1; nsAutoString typeString(inType); PRBool allWindows = !inType || typeString.Length() == 0; // Find the most window with the highest time stamp that matches // the requested type nsWindowInfo *searchInfo, *listEnd, *foundInfo = 0; searchInfo = mOldestWindow; listEnd = 0; while (searchInfo != listEnd) { if ((allWindows || searchInfo->TypeEquals(typeString)) && searchInfo->mTimeStamp >= lastTimeStamp) { foundInfo = searchInfo; lastTimeStamp = searchInfo->mTimeStamp; } searchInfo = searchInfo->mYounger; listEnd = mOldestWindow; } return foundInfo; } NS_IMETHODIMP nsWindowMediator::UpdateWindowTimeStamp( nsIXULWindow* inWindow) { nsWindowInfo *info, *listEnd; nsAutoLock lock(mListLock); info = mOldestWindow; listEnd = 0; while (info != listEnd) { if (info->mWindow.get() == inWindow) { // increment the window's time stamp info->mTimeStamp = ++mTimeStamp; // inform WindowWatcher nsCOMPtr idomwindow; GetDOMWindow(info->mWindow, idomwindow); nsCOMPtr domwindow(do_QueryInterface(idomwindow)); // if for some reason anything failed, it'll be set to 0, which is // better than an invalid pointer. mWatcher->SetActiveWindow(domwindow); return NS_OK; } info = info->mYounger; listEnd = mOldestWindow; } return NS_ERROR_FAILURE; } NS_IMETHODIMP nsWindowMediator::UpdateWindowTitle( nsIXULWindow* inWindow, const PRUnichar* inTitle ) { nsWindowInfo *info, *listEnd; nsresult rv; nsAutoLock lock(mListLock); for (info = mOldestWindow, listEnd = 0; info != listEnd; info = info->mYounger, listEnd = mOldestWindow) { if (info->mWindow.get() != inWindow) continue; nsIRDFResource* window = info->mRDFID; // Get rid of the old value nsIRDFNode* target = NULL; if ( NS_SUCCEEDED(mInner->GetTarget( window, kNC_Name, PR_TRUE, &target) ) && (target != nsnull) ) { mInner->Unassert( window, kNC_Name, target ); NS_IF_RELEASE( target ); } // Add new title nsCOMPtr newTitle; if ( gRDFService && NS_FAILED(rv = gRDFService->GetLiteral( inTitle, getter_AddRefs(newTitle) ) ) ) { NS_ERROR("unable to create literal for window name"); return rv; } // Should this title be displayed PRBool display = PR_TRUE; nsAutoString displayString; GetAttribute( inWindow, NS_LITERAL_STRING("intaskslist"), displayString ); ToLowerCase(displayString); if ( displayString.Equals(NS_LITERAL_STRING("false")) ) display=PR_FALSE; rv = Assert( window , kNC_Name, newTitle, display ); if (rv != NS_RDF_ASSERTION_ACCEPTED) { NS_ERROR("unable to set window name"); } return NS_OK; } return NS_ERROR_FAILURE; } /* This method's plan is to intervene only when absolutely necessary. We will get requests to place our windows behind unknown windows. For the most part, we need to leave those alone (turning them into explicit requests to be on top breaks Windows.) So generally we calculate a change as seldom as possible. */ NS_IMETHODIMP nsWindowMediator::CalculateZPosition( nsIXULWindow *inWindow, PRUint32 inPosition, nsIWidget *inBelow, PRUint32 *outPosition, nsIWidget **outBelow, PRBool *outAltered) { if (!outBelow) return NS_ERROR_NULL_POINTER; *outBelow = 0; if (!inWindow || !outPosition || !outAltered) return NS_ERROR_NULL_POINTER; if (inPosition != nsIWindowMediator::zLevelTop && inPosition != nsIWindowMediator::zLevelBottom && inPosition != nsIWindowMediator::zLevelBelow) // || inPosition == nsIWindowMediator::zLevelBelow && !inBelow return NS_ERROR_INVALID_ARG; nsWindowInfo *info; nsIXULWindow *belowWindow = 0; PRBool found; nsresult result = NS_OK; PRUint32 inZ; inWindow->GetZlevel(&inZ); *outPosition = inPosition; *outAltered = PR_FALSE; nsAutoLock lock(mListLock); if (inPosition == nsIWindowMediator::zLevelBelow) { // locate inBelow. it had better be in the z-list if it's a valid window. info = mTopmostWindow; found = PR_FALSE; if (inBelow && info) do { nsCOMPtr scanWidget; nsCOMPtr base(do_QueryInterface(info->mWindow)); if (base) base->GetMainWidget(getter_AddRefs(scanWidget)); if (inBelow == scanWidget.get()) { found = PR_TRUE; break; } info = info->mLower; } while (info != mTopmostWindow); if (!found) { /* Treat unknown windows as a request to be on top. Not as it should be, but that's what Windows gives us. Note we change inPosition, but not *outPosition. This forces us to go through the "on top" calculation just below, without necessarily changing the output parameters. */ inPosition = nsIWindowMediator::zLevelTop; } } if (inPosition == nsIWindowMediator::zLevelTop) { if (mTopmostWindow && GetWindowZ(mTopmostWindow->mWindow) > inZ) { // asked for topmost, can't have it. locate highest allowed position. info = mTopmostWindow; do { if (GetWindowZ(info->mWindow) <= inZ) break; info = info->mLower; } while (info != mTopmostWindow); *outPosition = nsIWindowMediator::zLevelBelow; belowWindow = info->mHigher->mWindow; *outAltered = PR_TRUE; } } else if (inPosition == nsIWindowMediator::zLevelBottom) { if (mTopmostWindow && GetWindowZ(mTopmostWindow->mHigher->mWindow) < inZ) { // asked for bottommost, can't have it. locate lowest allowed position. info = mTopmostWindow; do { info = info->mHigher; if (GetWindowZ(info->mWindow) >= inZ) break; } while (info != mTopmostWindow); *outPosition = nsIWindowMediator::zLevelBelow; belowWindow = info->mWindow; *outAltered = PR_TRUE; } } else { unsigned long relativeZ; // check that we're in the right z-plane if (found) { belowWindow = info->mWindow; relativeZ = GetWindowZ(belowWindow); if (relativeZ > inZ) { // might be OK. is lower window, if any, lower? if (info->mLower != info && GetWindowZ(info->mLower->mWindow) > inZ) { do { if (GetWindowZ(info->mWindow) <= inZ) break; info = info->mLower; } while (info != mTopmostWindow); belowWindow = info->mHigher->mWindow; *outAltered = PR_TRUE; } } else if (relativeZ < inZ) { // nope. look for a higher window to be behind. do { info = info->mHigher; if (GetWindowZ(info->mWindow) >= inZ) break; } while (info != mTopmostWindow); if (GetWindowZ(info->mWindow) >= inZ) belowWindow = info->mWindow; else *outPosition = nsIWindowMediator::zLevelTop; *outAltered = PR_TRUE; } // else they're equal, so it's OK } } if (NS_SUCCEEDED(result) && belowWindow) { nsCOMPtr base(do_QueryInterface(belowWindow)); if (base) base->GetMainWidget(outBelow); else result = NS_ERROR_NO_INTERFACE; } return result; } NS_IMETHODIMP nsWindowMediator::SetZPosition( nsIXULWindow *inWindow, PRUint32 inPosition, nsIXULWindow *inBelow) { nsWindowInfo *inInfo, *belowInfo, *listEnd; if (inPosition != nsIWindowMediator::zLevelTop && inPosition != nsIWindowMediator::zLevelBottom && inPosition != nsIWindowMediator::zLevelBelow || !inWindow) // inPosition == nsIWindowMediator::zLevelBelow && !inBelow) return NS_ERROR_INVALID_ARG; nsAutoLock lock(mListLock); /* locate inWindow and unlink it from the z-order list notice we look for it in the age list, not the z-order list. this is because the former is guaranteed complete, while now may be this window's first exposure to the latter. */ inInfo = mOldestWindow; listEnd = 0; while (inInfo != listEnd) { if (inWindow == inInfo->mWindow.get()) break; inInfo = inInfo->mYounger; listEnd = mOldestWindow; } if (inInfo == listEnd) return NS_ERROR_INVALID_ARG; /* locate inBelow, place inWindow behind it. inBelow, if given, had better be in the z-order list. */ if (inPosition == nsIWindowMediator::zLevelBelow) { belowInfo = mTopmostWindow; listEnd = 0; while (belowInfo != listEnd) { if (inBelow == belowInfo->mWindow.get()) break; belowInfo = belowInfo->mLower; listEnd = mTopmostWindow; } if (belowInfo == listEnd) if (inBelow) return NS_ERROR_INVALID_ARG; else inPosition = nsIWindowMediator::zLevelTop; } if (inPosition == nsIWindowMediator::zLevelTop || inPosition == nsIWindowMediator::zLevelBottom) belowInfo = mTopmostWindow ? mTopmostWindow->mHigher : 0; if (inInfo != belowInfo) { inInfo->Unlink( PR_FALSE, PR_TRUE ); inInfo->InsertAfter( 0, belowInfo ); } if (inPosition == nsIWindowMediator::zLevelTop) mTopmostWindow = inInfo; return NS_OK; } NS_IMETHODIMP nsWindowMediator::GetWindowForResource( const PRUnichar* inResource, nsIDOMWindowInternal** outWindow ) { if ( outWindow == NULL ) return NS_ERROR_INVALID_ARG; *outWindow = NULL; // Find the window //nsresult result = NS_ERROR_FAILURE; nsAutoString temp( inResource ); char* resourceString = ToNewCString(temp); nsWindowInfo *info, *listEnd; nsAutoLock lock(mListLock); info = mOldestWindow; listEnd = 0; while (info != listEnd) { PRBool isMatch = PR_FALSE; if ( NS_SUCCEEDED( info->mRDFID->EqualsString( resourceString, &isMatch) ) && isMatch ) { nsCOMPtr DOMWindow; if( NS_SUCCEEDED ( GetDOMWindow( info->mWindow, DOMWindow ) ) ) { *outWindow = DOMWindow; NS_ADDREF(*outWindow); } break; } info = info->mYounger; listEnd = mOldestWindow; } delete resourceString; // Rather than returning an error when you pass in crap, return NS_OK // Doing this to avoid throwing a JS exception becasue event bubbling is not working as of 7/26/99 //return result; return NS_OK; } NS_IMETHODIMP nsWindowMediator::ConvertISupportsToDOMWindow( nsISupports* inInterface, nsIDOMWindowInternal** outWindow ) { return inInterface->QueryInterface(NS_GET_IID(nsIDOMWindowInternal) , (void**) outWindow ); } // COM NS_IMPL_ADDREF( nsWindowMediator ); NS_IMPL_RELEASE( nsWindowMediator ); NS_IMPL_QUERY_INTERFACE2(nsWindowMediator, nsIWindowMediator, nsIRDFDataSource) // RDF nsresult nsWindowMediator::Init() { nsresult rv; if (gRefCnt++ == 0) { mListLock = PR_NewLock(); if (!mListLock) return NS_ERROR_OUT_OF_MEMORY; rv = nsServiceManager::GetService( kRDFServiceCID, NS_GET_IID(nsIRDFService), (nsISupports**) &gRDFService ); if (NS_FAILED(rv)) return rv; gRDFService->GetResource( kURINC_WindowMediatorRoot, &kNC_WindowMediatorRoot ); gRDFService->GetResource( kURINC_Name, &kNC_Name ); gRDFService->GetResource( kURINC_URL, &kNC_URL ); gRDFService->GetResource( kURINC_KeyIndex, &kNC_KeyIndex ); } if (NS_FAILED(rv = nsComponentManager::CreateInstance(kRDFInMemoryDataSourceCID, nsnull, NS_GET_IID(nsIRDFDataSource), (void**) &mInner))) return rv; nsCOMPtr rdfc = do_GetService(kRDFContainerUtilsCID, &rv); if (NS_FAILED(rv)) return rv; rv = rdfc->MakeSeq(mInner, kNC_WindowMediatorRoot, NULL ); NS_ASSERTION(NS_SUCCEEDED(rv), "Unable to make NC:WindowMediatorRoot a sequence"); if (NS_FAILED(rv)) return rv; if ( gRDFService == NULL ) return NS_ERROR_NULL_POINTER; mWatcher = do_GetService("@mozilla.org/embedcomp/window-watcher;1", &rv); if (NS_FAILED(rv)) return rv; // register this as a named data source with the RDF service return gRDFService->RegisterDataSource(this, PR_FALSE); } NS_IMETHODIMP nsWindowMediator::GetTarget(nsIRDFResource* source, nsIRDFResource* property, PRBool tv, nsIRDFNode** target) { if (property == kNC_KeyIndex) { nsCOMPtr container; nsresult rv = NS_NewMediatorListRDFContainer(mInner, kNC_WindowMediatorRoot, getter_AddRefs(container)); if (NS_FAILED(rv)) return(rv); if (!container) return(NS_ERROR_FAILURE); PRInt32 theIndex = 0; rv = container->IndexOf(source, &theIndex); if (NS_FAILED(rv)) return(rv); // only allow the range of 1 to 9 for single key access if (theIndex < 1 || theIndex > 9) return(NS_RDF_NO_VALUE); nsCOMPtr indexInt; rv = gRDFService->GetIntLiteral(theIndex, getter_AddRefs(indexInt)); if (NS_FAILED(rv)) return(rv); if (!indexInt) return(NS_ERROR_FAILURE); return(CallQueryInterface(indexInt, target)); } return mInner->GetTarget(source, property, tv, target); } NS_IMETHODIMP nsWindowMediator::Assert(nsIRDFResource* aSource, nsIRDFResource* aProperty, nsIRDFNode* aTarget, PRBool aTruthValue) { // XXX TODO: filter out asserts we don't care about return mInner->Assert(aSource, aProperty, aTarget, aTruthValue); } NS_IMETHODIMP nsWindowMediator::Unassert(nsIRDFResource* aSource, nsIRDFResource* aProperty, nsIRDFNode* aTarget) { // XXX TODO: filter out unasserts we don't care about return mInner->Unassert(aSource, aProperty, aTarget); } NS_IMETHODIMP nsWindowMediator::Change(nsIRDFResource* aSource, nsIRDFResource* aProperty, nsIRDFNode* aOldTarget, nsIRDFNode* aNewTarget) { // XXX TODO: filter out changes we don't care about return mInner->Change(aSource, aProperty, aOldTarget, aNewTarget); } NS_IMETHODIMP nsWindowMediator::Move(nsIRDFResource* aOldSource, nsIRDFResource* aNewSource, nsIRDFResource* aProperty, nsIRDFNode* aTarget) { // XXX TODO: filter out changes we don't care about return mInner->Move(aOldSource, aNewSource, aProperty, aTarget); } NS_IMETHODIMP nsWindowMediator::GetAllCommands(nsIRDFResource* source, nsIEnumerator/**/** commands) { NS_NOTYETIMPLEMENTED("write me!"); return NS_ERROR_NOT_IMPLEMENTED; } NS_IMETHODIMP nsWindowMediator::GetAllCmds(nsIRDFResource* source, nsISimpleEnumerator/**/** commands) { NS_NOTYETIMPLEMENTED("write me!"); return NS_ERROR_NOT_IMPLEMENTED; } NS_IMETHODIMP nsWindowMediator::IsCommandEnabled(nsISupportsArray/**/* aSources, nsIRDFResource* aCommand, nsISupportsArray/**/* aArguments, PRBool* aResult) { NS_NOTYETIMPLEMENTED("write me!"); return NS_ERROR_NOT_IMPLEMENTED; } NS_IMETHODIMP nsWindowMediator::DoCommand(nsISupportsArray* aSources, nsIRDFResource* aCommand, nsISupportsArray* aArguments) { NS_NOTYETIMPLEMENTED("write me!"); return NS_ERROR_NOT_IMPLEMENTED; } // Private helpers nsresult nsWindowMediator::AddWindowToRDF( nsWindowInfo* ioWindowInfo ) { if ( !ioWindowInfo || !(ioWindowInfo->mWindow) || !gRDFService ) return NS_ERROR_NULL_POINTER; nsCOMPtr window; nsresult rv; nsAutoString windowTitle; // Make up a unique ID and create the RDF NODE nsAutoString uniqueID(NS_LITERAL_STRING("window-")); uniqueID.Append(windowTitle ); uniqueID.AppendInt( mTimeStamp, 10 ); char cID[ 256]; uniqueID.ToCString( cID, 256); if (NS_FAILED(rv = gRDFService->GetResource(cID, getter_AddRefs(window) ))) { NS_ERROR("unable to get window resource"); return rv; } ioWindowInfo->mRDFID = window ; #if 0 // Get the RDF literal and add it to our node nsCOMPtr windowTitleLiteral; if (NS_FAILED(rv = gRDFService->GetLiteral( windowTitle.get(), getter_AddRefs(windowTitleLiteral)))) { NS_ERROR("unable to create literal for window name"); return rv; } rv = Assert(window, kNC_Name, windowTitleLiteral, PR_TRUE); if (rv != NS_RDF_ASSERTION_ACCEPTED) { NS_ERROR("unable to set window name"); return rv; } #endif // Add the element to the container nsCOMPtr container; rv = NS_NewMediatorListRDFContainer(mInner, kNC_WindowMediatorRoot, getter_AddRefs(container)); if (NS_FAILED(rv)) return rv; if (NS_FAILED(rv = container->AppendElement( window ) ) /* rdf_ContainerAppendElement(mInner, kNC_WindowMediatorRoot, window) */ ) { NS_ERROR("unable to add window to container"); return rv; } return NS_OK; }