menufw/hierarchynavigator/hnmetadatamodel/src/hnxmlmodelprovider.cpp
branchRCL_3
changeset 83 5456b4e8b3a8
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/menufw/hierarchynavigator/hnmetadatamodel/src/hnxmlmodelprovider.cpp	Wed Sep 01 12:32:46 2010 +0100
@@ -0,0 +1,581 @@
+/*
+* Copyright (c) 2007-2008 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:   
+*
+*/
+
+#include <sysutil.h> 
+#include "hnxmlmodelprovider.h"
+#include "hnxmlmodelcache.h"	
+#include "hnglobals.h"
+#include "hnconvutils.h"
+#include "menudebug.h"
+#include "hnhelper.inl"
+#include "hnmdmodel.h"
+#include "hnmdmenuitem.h"
+
+// ======== MEMBER FUNCTIONS ========
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+void CHnXmlModelProvider::ConstructL()
+	{
+	iDomImpl.OpenL();
+	User::LeaveIfError(iDomParser.Open(iDomImpl));
+	iCache = CHnXmlModelCache::NewL();
+	}
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+EXPORT_C CHnXmlModelProvider* CHnXmlModelProvider::NewL()
+	{
+	CHnXmlModelProvider* self = CHnXmlModelProvider::NewLC();
+	CleanupStack::Pop(self);
+	return self;
+	}
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+EXPORT_C CHnXmlModelProvider* CHnXmlModelProvider::NewLC()
+	{
+	CHnXmlModelProvider* self = new (ELeave) CHnXmlModelProvider;
+	CleanupStack::PushL(self);
+	self->ConstructL();
+	return self;
+	}
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+CHnXmlModelProvider::CHnXmlModelProvider(): iEventMap(&HBuf16Hash, &HBuf16Ident)
+	{
+	 
+	}
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+EXPORT_C CHnXmlModelProvider::~CHnXmlModelProvider()
+	{
+	delete iCache;
+	iDomParser.Close();
+	iDomImpl.Close();
+
+	// clean up eventmap
+	THashMapIter<HBufC*, TInt> iter(iEventMap);
+	while (HBufC* const * ptr = iter.NextKey())
+		{
+		delete *ptr;
+		}
+	iEventMap.Close();
+	}
+
+#ifdef _DEBUG
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+void CHnXmlModelProvider::LogEventMapping(
+		const RHashMap<HBufC*, TInt>& aEventMap)
+	{
+    DEBUG(("\t_MM_: CHnXmlModelProvider::LogEventMapping IN"));
+    RFs fs;
+    if ( !fs.Connect() )
+        {
+        RFile logFile;
+        if ( !logFile.Replace( fs, KEventMapLogFile, EFileWrite ) )
+            {
+            // first line
+            TBuf8<256> buf1;
+            buf1.Append( _L8("EventName") );
+            buf1.Append( _L8("\t") );
+            buf1.Append( _L8("EventId") );
+            buf1.Append( _L8("\n") );
+            logFile.Write( 0, buf1 );                    
+            THashMapIter<HBufC*, TInt> iter( aEventMap );
+            while ( HBufC* const * ptr = iter.NextKey() )
+                {
+                TInt *v = iter.CurrentValue();
+                TBuf8<256> buf2;
+                buf2.Append( (*ptr)->Des() );
+                buf2.Append( _L8("\t") );
+                buf2.AppendNum( *v );
+                buf2.Append( _L8("\n") );
+                TInt size ( 0 );
+                logFile.Size( size );
+                logFile.Write( size, buf2 );
+                }
+            logFile.Close();
+            }
+        fs.Close();
+        }
+    DEBUG(("\t_MM_: CHnXmlModelProvider::LogEventMapping OUT"));
+    }
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+// 
+void CHnXmlModelProvider::LogSuiteModel( const TDesC& aName, 
+                                                    RXmlEngDocument& aDoc )
+    {
+    DEBUG(("\t_MM_: CHnXmlModelProvider::LogSuiteModel IN"));
+    TBuf8<256> buf1;
+    TFileName logFileName;
+    logFileName.Copy( KSuiteLoadingLogFile );
+    logFileName.Append( Kbackslash );
+    logFileName.Append( aName );
+    logFileName.Append( KXmlExt );
+    TRAP_IGNORE( aDoc.SaveL( logFileName, aDoc.DocumentElement() ) );
+    DEBUG(("\t_MM_: CHnXmlModelProvider::LogSuiteModel OUT"));
+    }
+#endif
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+RXmlEngDocument CHnXmlModelProvider::ParseFileL( const TDesC& aPath )
+    {
+    RBuf8 doc( ReadFileLC( aPath ) );
+    CleanupClosePushL(doc);
+    
+    RXmlEngDocument xmlDoc;
+    CleanupClosePushL( xmlDoc );
+    xmlDoc = ParseDocL(doc);
+    CleanupStack::Pop( &xmlDoc );
+    
+    // clean up
+    CleanupStack::PopAndDestroy( &doc );
+    
+    return xmlDoc;
+    }
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+RXmlEngDocument CHnXmlModelProvider::ParseDocL( const TDesC8& aDoc )
+    {
+    RXmlEngDocument doc;
+    CleanupClosePushL( doc );
+    doc = iDomParser.ParseL( aDoc );
+    CleanupStack::Pop( &doc );
+    return doc;
+    }
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+HBufC8* CHnXmlModelProvider::ReadFileLC(const TDesC& aPath)
+    {
+    RFile file;
+    User::LeaveIfError( file.Open( CEikonEnv::Static()->FsSession(),
+                                   aPath, EFileRead) );
+    CleanupClosePushL( file );
+    
+    TInt fileSize(0);
+    User::LeaveIfError( file.Size( fileSize ) );
+    HBufC8* buf = HBufC8::NewLC( fileSize );
+    TPtr8 bufPtr( buf->Des() );
+    User::LeaveIfError( file.Read( bufPtr ) );
+
+    // clean up
+    CleanupStack::Pop(buf);
+    CleanupStack::PopAndDestroy(&file);    
+
+    return buf;
+    }
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+void CHnXmlModelProvider::ChangeEventsToIdsInChildrenL(
+		TXmlEngElement & aElement)
+	{
+	RXmlEngNodeList<TXmlEngElement> children;
+	CleanupClosePushL(children);
+	aElement.GetChildElements(children);
+	TInt amount = children.Count();
+	for (TInt i(0); i < amount; i++)
+		{
+		TXmlEngElement child = children.Next();
+		TPtrC8 childName = child.Name();
+
+		if (!childName.Compare(KEventName8) 
+				|| CHnMdMenuItem::IsMenuItemElementName( childName )
+				|| !child.Name().Compare(KMenuToolbar8))
+			{
+			ChangeEventNamesToIdsL(child);
+			}
+		else if (!childName.Compare(KEditModeItem8))
+			{
+			ChangeEventsToIdsInChildrenL(child);
+			}
+		}
+
+	CleanupStack::PopAndDestroy(&children);
+	}
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+TInt CHnXmlModelProvider::CollectSuiteL( RXmlEngDocument& aXmlDoc )
+	{
+    TInt err(KErrNotFound);
+    RXmlEngDocument suiteDoc;
+	CleanupClosePushL( suiteDoc );
+	//hardcoded path for suites as there is only foldersuite
+	suiteDoc = ParseFileL( KFolderSuitePath );
+    
+    // one suite per file
+    RXmlEngNodeList<TXmlEngElement> elements;
+    suiteDoc.DocumentElement().GetChildElements( elements );
+    TXmlEngElement suiteElement;
+    while ( elements.HasNext() )
+        {
+        suiteElement = elements.Next();
+        TPtrC8 t = suiteElement.Name();
+        if ( !suiteElement.Name().Compare( KSuiteElementName8 ) )
+            {
+            ChangeEventsToIdsInChildrenL( suiteElement.AsElement() );    
+            break;
+            }
+        }
+    
+    aXmlDoc.OpenL( iDomImpl, suiteDoc.DocumentElement() );            
+    err = KErrNone;
+    
+    CleanupStack::PopAndDestroy( &suiteDoc );
+    return err;             
+    }
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+void CHnXmlModelProvider::CollectItemsL( RXmlEngDocument& aXmlDoc )
+    {
+    RXmlEngDocument itemDoc;
+    CleanupClosePushL( itemDoc );
+    //hardcoded path for items as there is only foldersuite
+    TInt err( KErrNone );
+    TRAP( err , itemDoc = ParseFileL(KFolderItemsPath) );
+    if( !err )
+        {
+        RXmlEngNodeList< TXmlEngElement > children;
+        CleanupClosePushL(children);
+        itemDoc.DocumentElement().GetChildElements(children);
+        
+        TPtrC8 itemGenre =
+            itemDoc.DocumentElement().AttributeNodeL(KGenreName8).Value();
+            
+        TInt amount = children.Count();
+        for( TInt i(0); i<amount; i++ )
+            {
+            TXmlEngElement child = children.Next();
+            TPtrC8 tempChildName = child.Name();
+            // append localizations to root
+            if (!child.Name().Compare(KLocalizationName8))
+                {
+                aXmlDoc.DocumentElement().AsElement().AppendChildL(child);
+                child.ReconcileNamespacesL();
+                }
+            // append itmes to proper suite
+            else if (!child.Name().Compare(KItemName8) )
+                {
+                // go througs item's children to change event names to ids
+                ChangeEventsToIdsInChildrenL(child);
+                
+                // edit_mode item
+                RXmlEngNodeList< TXmlEngElement > editModeItems;
+                CleanupClosePushL( editModeItems );
+                child.GetChildElements( editModeItems );
+                TInt count = editModeItems.Count();
+                for ( TInt ic( 0 ); ic < count; ic++ )
+                    {
+                    TXmlEngElement editModeItem = editModeItems.Next();
+                    if ( !editModeItem.Name().Compare( KEditModeItem8 ))
+                        {
+                        editModeItem.AddNewAttributeL(KSuiteElementName8,
+                                itemGenre);
+                        }
+                    }
+                CleanupStack::PopAndDestroy(&editModeItems);
+                // edit_mode items - end
+
+                RXmlEngNodeList<TXmlEngElement> suites;
+                CleanupClosePushL(suites);
+                aXmlDoc.DocumentElement().GetChildElements(suites);
+                TInt amountSuites = suites.Count();
+                for (TInt i(0); i < amountSuites; i++)
+                    {
+                    TXmlEngElement childSuite = suites.Next();
+                    TPtrC8 tempName = child.Name();
+                    //find suite
+                    if (!childSuite.Name().Compare(KTitleName8))
+                        {
+                        TPtrC8 suiteGenre = childSuite.AttributeNodeL(
+                                KGenreName8).Value();
+
+                        //find proper suite to append item
+                        if (!suiteGenre.Compare(itemGenre))
+                            {
+                            child.AddNewAttributeL(KSuiteElementName8,
+                                    itemGenre);
+                            childSuite.AppendChildL(child);
+                            }
+                        }
+                    }
+                aXmlDoc.DocumentElement().ReconcileNamespacesL();
+                CleanupStack::PopAndDestroy( &suites );
+                }
+            }
+        CleanupStack::PopAndDestroy( &children );
+        }
+    CleanupStack::PopAndDestroy( &itemDoc );
+    }        
+
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+TInt CHnXmlModelProvider::GetNewEventId( HBufC* aEventName )
+    {
+    TInt res( KErrGeneral );
+
+    if ( !aEventName->Compare( KKeyEmpty ) )
+        {
+        res = KKeyIdEmpty;
+        }
+    else if ( !aEventName->Compare( KKeySelect ) )
+        {
+        res = KKeyIdSelect;
+        }
+    else if ( !aEventName->Compare( KKeySelect2 ) )
+        {
+        res = KKeyIdSelect2;
+        }
+    else if ( !aEventName->Compare( KKeySelect3 ) )
+        {
+        res = KKeyIdSelect3;
+        }
+    else if ( !aEventName->Compare( KKeyCall ) )
+        {
+        res = KKeyIdCall;
+        }
+    else if ( !aEventName->Compare( KKeyClear ) )
+        {
+        res = KKeyIdClear;
+        }
+    else if ( !aEventName->Compare( KKeyMove ) )
+        {
+        res = KKeyIdMove;
+        }
+    else if ( !aEventName->Compare( KKeyMoveInto ) )
+        {
+        res = KKeyIdMoveInto;
+        }
+    else if ( !aEventName->Compare( KOnSuiteLoad ) )
+        {
+        res = KIdSuiteLoad;
+        }
+    else if ( !aEventName->Compare( KOnSuiteUnLoad ) )
+        {
+        res = KIdSuiteUnLoad;
+        }
+    else if ( !aEventName->Compare( KOnFocusGain ) )
+        {
+        res = KIdFocusGain;
+        }
+    else if ( !aEventName->Compare( KOnFocusLost ) )
+        {
+        res = KIdFocusLost;
+        }
+    else
+        {
+        THashMapIter<HBufC*, TInt> iter( iEventMap );
+        res = KCustomKeyOffset;
+        
+        while ( TInt const * v = iter.NextValue() )
+            {
+            if ( v != NULL && *v >= KCustomKeyOffset )
+                {
+                res++;
+                }
+            }
+        }
+    
+    return res;    
+    }
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+void CHnXmlModelProvider::ChangeEventNamesToIdsL( TXmlEngElement& aElement )
+    {
+    if ( aElement.HasChildNodes() && ( !aElement.Name().Compare( KMenuItemName8 )  
+            || !aElement.Name().Compare( KMenuToolbar8 ) ) )
+        {
+        
+        RXmlEngNodeList< TXmlEngElement > children;
+        CleanupClosePushL(children);
+        aElement.GetChildElements(children);
+        TInt count( children.Count() );
+        for( TInt i( 0 ); i < count; i++ )
+            {
+            TXmlEngElement element = children.Next();
+            if ( CHnMdMenuItem::IsMenuItemElementName( element.Name() ) ||
+                    !element.Name().Compare( KMenuButton8 ) )
+                {
+                ChangeEventNamesToIdsL( element );
+                }
+            }
+        CleanupStack::PopAndDestroy( &children );
+        }
+    else if( aElement.AttributeValueL( KEventAttrName8 ).Length() )
+        {
+        TBool bufferEmpty ( ETrue );
+        TBuf8<KMaxPath> newEventIds;
+             
+        // loop through all event names
+
+        // parsing events        
+        HBufC* events = HnConvUtils::Str8ToStrLC(
+            aElement.AttributeValueL( KEventName8 ) );
+        
+        TLex lex( events->Ptr() );
+        TChar ch;
+        
+        TInt length( events->Length() );
+        TInt cnt = 0;
+        while( ch = lex.Get() != 0 )
+            {
+            cnt++;
+            while ( ( ch = lex.Peek() ) != '|' && cnt < length)
+                {
+                lex.Inc();
+                cnt++;
+                }
+
+            // iEventMap takes ownership of "en"
+            HBufC* en = HBufC::NewL( lex.MarkedToken().Length() );
+            en->Des().Copy( lex.MarkedToken() );
+
+            TInt* resFind = iEventMap.Find( en );
+            TInt res = -1;
+            if ( resFind == NULL )
+                {
+                TInt newId( GetNewEventId( en ) );
+                iEventMap.Insert( en, newId );                
+                res = newId;
+                }
+            else
+                {
+                res = *resFind;
+                delete en;
+                }
+            
+            if ( bufferEmpty ) 
+                {
+                newEventIds.AppendNum( res );
+                bufferEmpty = EFalse;
+                }
+			else
+				{
+				newEventIds.Append(KPipe);
+				newEventIds.AppendNum(res);
+				}
+
+            lex.Inc();
+            cnt++;
+            lex.Mark();
+            if (cnt >= length)
+                break;
+            }
+
+        TXmlEngAttr att = aElement.AttributeNodeL( KEventName8 );
+        att.SetValueL( newEventIds );
+        aElement.SetAttributeNodeL( att );
+
+        CleanupStack::PopAndDestroy( events );
+        }
+    }
+    
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+// 
+void CHnXmlModelProvider::CreateModelL( RXmlEngDocument& aXmlDoc )
+    {
+    MMPERF( ( "CHnXmlModelProvider::CreateModelL IN") );
+    MMPERF( ( "    Suite name: %S", &aSuiteName ) );
+    
+    TBool suiteCollected = EFalse;
+    suiteCollected = CollectSuiteL( aXmlDoc );
+    
+    if ( !suiteCollected )
+        {
+        MMPERF(("CHnXmlModelProvider::CreateModelL - suite collected"));
+        CollectItemsL( aXmlDoc );
+        MMPERF(("CHnXmlModelProvider::CreateModelL - items collected"));
+        }
+    MMPERF( ( "CHnXmlModelProvider::CreateModelL OUT") );
+    }
+
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+// 
+EXPORT_C TInt CHnXmlModelProvider::GetModelL(
+    const TDesC& aSuiteName, RXmlEngDocument& aXmlDoc )
+    {
+    if ( !iCache->IsCachedL( aSuiteName ) )
+        {
+        RXmlEngDocument newXmlDoc;
+        CleanupClosePushL( newXmlDoc );
+        
+        CreateModelL( newXmlDoc );
+        
+        #ifdef _DEBUG
+            DEBUG(("_MM_:CHnXmlModelProvider::GetModelL _DEBUG IN"));
+            LogEventMapping( iEventMap );
+            LogSuiteModel( aSuiteName, newXmlDoc );
+            DEBUG(("_MM_:CHnXmlModelProvider::GetModelL _DEBUG OUT"));
+        #endif
+
+        // cache takes ownership of the suite name and the document  
+        iCache->AddL( aSuiteName, newXmlDoc );
+        
+        CleanupStack::Pop( &newXmlDoc );
+        }
+    
+    iCache->GetL( aSuiteName, aXmlDoc );
+    
+    return KErrNone;
+    }