webengine/widgetengine/src/Preferences.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Mon, 18 Jan 2010 21:20:18 +0200
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Revision: 201001 Kit: 201003
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/*
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* Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of the License "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  This class represents the Widget Preferences object
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*
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*/
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// INCLUDE FILES
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#include <e32std.h>
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#include <S32FILE.H>
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#include <f32file.h>
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#include <uri16.h>
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#include <e32hashtab.h>
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#include "Preferences.h"
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// EXTERNAL DATA STRUCTURES
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// EXTERNAL FUNCTION PROTOTYPES
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// CONSTANTS
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const TInt KMaxIntLength = 10;
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const TInt KMaxKeyValueSize = 4096; //4 k
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_LIT( KKeyFormat, "%d.%S" );
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_LIT( KPrefsFile,"prefs.dat" );
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_LIT( KPrefsTmpFile,"prefs.dat.tmp" );
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_LIT( KPrefsBakFile, "prefs.dat.bak" );
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// ----------------------------------------------------------------------------
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// WidgetPreferences::WidgetPreferences
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// C++ Constructor
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//
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//
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// ----------------------------------------------------------------------------
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WidgetPreferences::WidgetPreferences() :m_widgetid(0),
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                                        m_widgetbundleid(0),
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                                        m_basepath(0),
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                                        m_filepath(0)
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{
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    m_preferences = new RPtrHashMap<TDesC,PrefElement>();    
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}
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// ----------------------------------------------------------------------------
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// WidgetPreferences::~WidgetPreferences
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// Destructor
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//
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//
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// ----------------------------------------------------------------------------
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WidgetPreferences::~WidgetPreferences()
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{
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    //TRAP_IGNORE( saveL() );
0
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    if (m_preferences) {
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        m_preferences->ResetAndDestroy();
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        m_preferences->Close();
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        delete m_preferences;        
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    }
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    delete m_basepath;
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    delete m_widgetbundleid;        
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    delete m_filepath; 
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}
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// ----------------------------------------------------------------------------
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// WidgetPreferences::setBasePathL
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//
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//
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// ----------------------------------------------------------------------------
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void WidgetPreferences::setBasePathL(const TDesC& aValue)
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{
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    m_basepath = aValue.AllocL();    
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}
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// ----------------------------------------------------------------------------
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// WidgetPreferences::setWidgetId
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//
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//
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// ----------------------------------------------------------------------------
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void WidgetPreferences::setWidgetId(TInt aValue)
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{
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    m_widgetid = aValue;
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}
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// ----------------------------------------------------------------------------
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// WidgetPreferences::setBundleIdL
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//
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//
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// ----------------------------------------------------------------------------
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void WidgetPreferences::setWidgetBundleId(const TDesC& aValue)
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{
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    m_widgetbundleid = aValue.AllocL();
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}
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// ----------------------------------------------------------------------------
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// WidgetPreferences::setBundleIdL
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//
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//
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// ----------------------------------------------------------------------------
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TDesC& WidgetPreferences::getWidgetBundleId()
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{
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   return *m_widgetbundleid;
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}
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// ----------------------------------------------------------------------------
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// WidgetPreferences::PreferenceL
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// Get preference for a key
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//
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//
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// ----------------------------------------------------------------------------
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TInt WidgetPreferences::preferenceL( const TDesC& akey, HBufC*& avalue)
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{
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    TInt rSuccess = KErrNotFound;
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    TInt size = 0;
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    if ( !m_basepath || (m_basepath->Length() <= 0) )
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        return rSuccess;
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    if ( akey.Length() <= KMaxKeyValueSize ) {
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        HBufC* k = HBufC::NewLC( akey.Length() + KMaxIntLength + 1 );
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        k->Des().Format( KKeyFormat, m_widgetid, &akey );
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        PrefElement* pref = m_preferences->Find( *k );
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        if ( !pref ) {
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            CleanupStack::PopAndDestroy( k );
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            return rSuccess;
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        }
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        size = pref->valueSize();            
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        if ( size > KMaxKeyValueSize ) {
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            // return contents from temp file whose name is stored 
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            // in the m_value member of m_preferences
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            RFs fs;
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            if ( fs.Connect() == KErrNone ) {
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                CleanupClosePushL( fs );
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                HBufC* filePath = HBufC::NewLC( pref->value().Length() );
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                TPtr fName( filePath->Des() );
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                fName.Append( pref->value() );
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                RFileReadStream readStream;
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                if ( readStream.Open( fs, *filePath, EFileRead ) == KErrNone ) {
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                    CleanupClosePushL( readStream );
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                    TInt len( readStream.ReadInt32L() );
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                    if ( len > 0 ) {                                       
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                        HBufC* v = HBufC::NewLC( len );
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                        TPtr ptrvalue = v->Des();
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                        readStream.ReadL( ptrvalue, len );    
5
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                        avalue = v; // ownership xfered
0
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                        CleanupStack::Pop( v );
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                        rSuccess = KErrNone;
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                    }     
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                    CleanupStack::PopAndDestroy();//readStream
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                }   
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                CleanupStack::PopAndDestroy( 2 ); //filePath,fs
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            }
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        }        
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        else if ( size >= 0 ) {
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            avalue = pref->value().AllocL();
0
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            rSuccess = KErrNone;
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        }
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        CleanupStack::PopAndDestroy( k );
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    }
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    return rSuccess;
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}
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// ----------------------------------------------------------------------------
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// WidgetPreferences::SetPreferenceL
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// set Preference for a key
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//
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//
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// ----------------------------------------------------------------------------
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void WidgetPreferences::setPreferenceL( const TDesC& akey, const TDesC& avalue)
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{
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    if ( !m_basepath || (m_basepath->Length() <= 0) )
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        return;
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    if ( akey.Length() <= KMaxKeyValueSize ) {
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        HBufC* k = HBufC::NewLC( akey.Length() + KMaxIntLength + 1 );
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        k->Des().Format( KKeyFormat, m_widgetid, &akey );
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        // if hash has the key and its value
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        // delete the old value later when the new value was successfully updated
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        PrefElement* prefExisting = NULL;
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        prefExisting = m_preferences->Find( *k );                            
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        if ( avalue.Length() <= KMaxKeyValueSize ) {
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            PrefElement* pref = new (ELeave) PrefElement;   
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            CleanupStack::PushL( pref );   
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            pref->setValueL( avalue );
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            pref->setValueSize( avalue.Length() );
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            m_preferences->InsertL( k, pref );
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            CleanupStack::Pop(); //pref   
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        }
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        else {
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            // create a temp file and save the value in temp file. 
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            // m_value member of PrefElement contains the temp file name.
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            RFs fs;
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            RFile file;
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            if ( fs.Connect() == KErrNone ) {
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                CleanupClosePushL( fs );
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                // create and write to file
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                TFileName tempFileName;
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                file.Temp( fs, *m_basepath, tempFileName, EFileWrite|EFileShareExclusive );
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                CleanupClosePushL( file );
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                HBufC* filePath = HBufC::NewLC( tempFileName.Length() );
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                TPtr fName( filePath->Des() );
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                fName.Append( tempFileName );
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                RFileWriteStream writeStream( file );
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                CleanupClosePushL( writeStream );        
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                TRAPD( err, 
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                    writeStream.WriteInt32L( avalue.Length() );
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                    writeStream.WriteL( avalue );             
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   235
                    writeStream.CommitL(); );
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   236
                // If an error occured while writing to the file, delete the temp file
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                // This should be the case when disk is full
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   238
                if ( err != KErrNone )
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   239
                    {
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                    CleanupStack::PopAndDestroy( ); //writeStream
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                    file.Close();
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                    fs.Delete( *filePath );
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                    User::Leave( err );
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                    }
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                // create new preference element
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                PrefElement* pref = new ( ELeave ) PrefElement;
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                CleanupStack::PushL( pref );  
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                pref->setValueSize( avalue.Length() );
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                pref->setValueL( *filePath );               
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                // update new preference element
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                m_preferences->InsertL( k, pref );
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                CleanupStack::Pop( pref );
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                CleanupStack::PopAndDestroy( ); //writeStream
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                CleanupStack::PopAndDestroy( 3 ); //filePath,file,fs
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            }           
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        }        
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        // now the new value is updated, it's safe to delete the old value
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        if ( prefExisting ) {
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            prefExisting->setCleanFileFlag( ETrue );
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            delete prefExisting;
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   264
        }
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        CleanupStack::Pop();   // k
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        // Save update to persistent storage
26
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        TRAPD(err, saveL());
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        if(err!= KErrNone)
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   271
            {
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            deleteAllPrefFiles();
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            }
0
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    }
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}
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// ----------------------------------------------------------------------------
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// WidgetPreferences::removePreferenceL
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// remove Preference for a key
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//
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//
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// ----------------------------------------------------------------------------
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void WidgetPreferences::removePreferenceL( const TDesC& akey, const TDesC& avalue)
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{
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    if ( !m_basepath || (m_basepath->Length() <= 0) )
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        return;
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    // double check value is NULL
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    if ( avalue != KNullDesC ) {
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        return;
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        }
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    if ( akey.Length() <= KMaxKeyValueSize ) {
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        HBufC* k = HBufC::NewLC( akey.Length() + KMaxIntLength + 1 );
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        k->Des().Format( KKeyFormat, m_widgetid, &akey );
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        // if hash has the key and its value
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        // delete the old value later when the new value was successfully updated
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        PrefElement* prefExisting = NULL;
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        prefExisting = m_preferences->Find( *k );                            
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        m_preferences->Remove(k);
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        // now the new value is updated, it's safe to delete the old value
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        if ( prefExisting ) {
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            prefExisting->setCleanFileFlag( ETrue );
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            delete prefExisting;
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        }
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        CleanupStack::PopAndDestroy();   // k
15
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   313
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        // Save update to persistent storage
26
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	TRAPD(err, saveL());
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   316
    if(err!= KErrNone) {
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        deleteAllPrefFiles();
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   318
        }
0
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    }
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}
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// ----------------------------------------------------------------------------
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// WidgetPreferences::SaveL
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// SAve preferences to persistent storage
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//
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   326
//
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// ----------------------------------------------------------------------------
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void WidgetPreferences::saveL()
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   329
{
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   330
    if ( !m_basepath || (m_basepath->Length() <= 0) )
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   331
        return;
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   332
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   333
    RFs fs;
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   334
26
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diff changeset
   335
        
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   336
    // Connect to file server
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   337
    User::LeaveIfError(fs.Connect());
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   338
    CleanupClosePushL( fs );
0
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   339
        
26
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   340
    // Form filenames
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   341
    HBufC* tmpFilePath = HBufC::NewLC( m_basepath->Length() + KPrefsTmpFile().Length() );
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   342
    HBufC* bakFilePath = HBufC::NewLC( m_basepath->Length() + KPrefsBakFile().Length() );
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   343
    HBufC* filePath = HBufC::NewLC( m_basepath->Length() + KPrefsFile().Length() );
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   344
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   345
    TPtr fName( tmpFilePath->Des() );
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   346
    fName.Append( *m_basepath );
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   347
    fName.Append( KPrefsTmpFile );
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   348
    
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   349
    fName.Set( bakFilePath->Des() );
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   350
    fName.Append( *m_basepath );
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   351
    fName.Append( KPrefsBakFile );
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   352
    
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   353
    fName.Set( filePath->Des() );
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   354
    fName.Append( *m_basepath );
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   355
    fName.Append( KPrefsFile );
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   356
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   357
	  RFileWriteStream writeStream;
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   358
    writeStream.PushL();
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diff changeset
   359
    
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   360
	// Try to create the temp file
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   361
	if(writeStream.Replace(fs, *tmpFilePath, EFileWrite|EFileShareExclusive) != KErrNone) {
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   362
		// Make sure the private path exists
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   363
		fs.CreatePrivatePath( EDriveC );
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   364
		
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   365
		// Try again to create the file
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   366
		User::LeaveIfError(writeStream.Create(fs, *tmpFilePath, EFileWrite|EFileShareExclusive));
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   367
	}
0
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   368
26
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   369
    // Try to externalize the data to the stream
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   370
    TRAPD(err, externalizeL(writeStream));
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   371
    
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   372
    // Close the stream
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   373
    CleanupStack::PopAndDestroy(); // writeStream
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   374
    	     
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   375
    // If no error at this point then we're guaranteed to have a valid file
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   376
    if(err!=KErrNone)
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   377
    	{
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   378
    	// Delete the temp file
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   379
    	fs.Delete(*tmpFilePath);
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   380
    	
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   381
    	// And leave with the error code
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   382
    	User::Leave(err);
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   383
    	}
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   384
    	
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   385
    // Backup any old valid file just in case
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   386
    fs.Delete(*bakFilePath);
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   387
    fs.Rename(*filePath, *bakFilePath);
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   388
    
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   389
    // Rename the temp file to be the actual settings file
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   390
    err = fs.Rename(*tmpFilePath, *filePath);
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   391
    if(err!=KErrNone)
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   392
    	{
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   393
    	// If we had a backup settings file, try to return it
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   394
    	fs.Rename(*bakFilePath, *filePath);
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   395
    	User::Leave(err);
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   396
    	}
0
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   397
26
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   398
	// Cleanup
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   399
	CleanupStack::PopAndDestroy(4); // filePath, bakFilePath, tmpFilePath, fs
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   400
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   401
}
0
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   402
26
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   403
// ----------------------------------------------------------------------------
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   404
// WidgetPreferences::externalizeL
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   405
//
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   406
//
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   407
// ----------------------------------------------------------------------------
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   408
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   409
void WidgetPreferences::externalizeL(RWriteStream& aStream) const
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   410
{
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   411
    aStream.WriteInt32L( m_preferences->Count() );
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   412
	
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   413
    TPtrHashMapIter<TDesC,PrefElement> it( *m_preferences );
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   414
    const TDesC* key;
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   415
    const PrefElement* pref;
0
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   416
26
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   417
    while ( ( key = it.NextKey() ) != 0 ) {
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   418
        pref = it.CurrentValue();
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   419
        aStream.WriteInt32L( key->Length() );
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   420
        aStream.WriteL( *key );
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   421
        aStream.WriteInt32L( pref->value().Length() );
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   422
        aStream.WriteL( pref->value() );
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   423
        aStream.WriteInt32L( pref->valueSize() );
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   424
    }
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   425
    aStream.CommitL();
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   426
    
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   427
}
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   428
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   429
// ----------------------------------------------------------------------------
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   430
// WidgetPreferences::internalizeL
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   431
//
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   432
//
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   433
// ----------------------------------------------------------------------------
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   434
void WidgetPreferences::internalizeL(RReadStream& aStream)
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   435
{
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   436
    TInt count( aStream.ReadInt32L() );
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   437
    for( TInt i = 0; i < count; i++ ) {
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   438
        
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   439
        TInt len = aStream.ReadInt32L();
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   440
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   441
        if ( len > 0 ) {
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   442
            HBufC* key = HBufC::NewLC( len );
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   443
            TPtr ptrkey = key->Des();
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   444
            aStream.ReadL( ptrkey, len );
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   445
            len = aStream.ReadInt32L();
0
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   446
26
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   447
            if ( len <= KMaxKeyValueSize ) {
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   448
                HBufC* value = HBufC::NewLC( len );
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   449
                TPtr ptrvalue = value->Des();
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   450
                aStream.ReadL( ptrvalue, len );
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   451
                PrefElement* pref = new ( ELeave ) PrefElement;
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   452
                CleanupStack::PushL( pref );
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   453
                pref->setValueL( ptrvalue );
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   454
                TInt size = aStream.ReadInt32L();
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   455
                pref->setValueSize( size );
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   456
                m_preferences->InsertL( key, pref );
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   457
                CleanupStack::Pop(); //pref
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   458
                CleanupStack::PopAndDestroy(); //value
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   459
                CleanupStack::Pop(); //key
0
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   460
            }
26
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   461
            else {
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   462
                CleanupStack::PopAndDestroy( key );
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   463
             }
0
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   464
26
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   465
         }
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   466
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   467
        else {
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   468
            break;
0
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   469
        }
26
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   470
     }
0
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   471
26
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   472
 }
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   473
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   474
// ----------------------------------------------------------------------------
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   475
// WidgetPreferences::deleteAllPrefFiles
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   476
//
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   477
//
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   478
// ----------------------------------------------------------------------------
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   479
void WidgetPreferences::deleteAllPrefFiles(){
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   480
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   481
   if ( !m_basepath || (m_basepath->Length() <= 0) ) 
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   482
         return;
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   483
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   484
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   485
   RFs fs;
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   486
   // Deleting bkUp and main prefs file.
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   487
   User::LeaveIfError(fs.Connect());
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   488
   CleanupClosePushL( fs );
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   489
   
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   490
   HBufC* bkFilePath = HBufC::NewLC( m_basepath->Length() + KPrefsBakFile().Length() );
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   491
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   492
   TPtr fName( bkFilePath->Des() );
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   493
   fName.Append( *m_basepath );
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   494
   fName.Append( KPrefsBakFile );
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   495
 
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   496
   fs.Delete( *bkFilePath  );
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   497
         
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   498
   CleanupStack::PopAndDestroy(); 
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   499
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   500
   HBufC* prefFilePath = HBufC::NewLC( m_basepath->Length() + KPrefsFile().Length() );
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   501
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   502
   TPtr fNamePr( prefFilePath->Des() );
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   503
   fNamePr.Append( *m_basepath );
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   504
   fNamePr.Append( KPrefsFile);
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   505
 
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   506
   fs.Delete( *prefFilePath  );
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   507
         
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   508
   CleanupStack::PopAndDestroy(2);
0
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   509
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   510
}
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   511
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   512
// ----------------------------------------------------------------------------
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   513
// WidgetPreferences::LoadL
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   514
// Load preferences from persistent storage
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   515
//
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   516
//
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   517
// ----------------------------------------------------------------------------
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   518
void WidgetPreferences::loadL()
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   519
{
26
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   520
   if ( !m_basepath || (m_basepath->Length() <= 0) ) 
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   521
         return;
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   522
    
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   523
    // Try to connect to file server
0
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   524
    RFs fs;
26
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   525
    User::LeaveIfError(fs.Connect());
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   526
    CleanupClosePushL( fs );
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   527
    
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   528
    // Form settings file name
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   529
    HBufC* filePath = HBufC::NewLC( m_basepath->Length() + KPrefsFile().Length() );
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   530
    TPtr fName( filePath->Des() );
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   531
    fName.Append( *m_basepath );
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   532
    fName.Append( KPrefsFile );
0
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   533
26
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   534
    // Open stream
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   535
    RFileReadStream readStream;
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   536
    readStream.PushL();
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   537
    TInt err = readStream.Open( fs, *filePath, EFileRead );
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   538
    if(err!=KErrNone) {
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   539
        User::Leave(err);
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   540
    }
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   541
    
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   542
    // Read the data from the stream
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   543
    internalizeL(readStream);
0
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   544
26
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   545
    CleanupStack::PopAndDestroy(3); // readStream, filePath, fs
0
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   546
}
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   547
    
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   548
// ----------------------------------------------------------------------------
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   549
// PrefElement::PrefElement
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   550
// C++ constructor
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   551
//
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   552
//
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   553
// ----------------------------------------------------------------------------    
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   554
PrefElement::PrefElement() : m_value (0), m_valuesize (0), m_cleanFileFlag (EFalse)
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   555
{
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   556
}
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   557
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   558
    
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   559
// ----------------------------------------------------------------------------
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   560
// PrefElement::~PrefElement
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   561
// Destructor
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   562
//
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   563
//
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   564
// ----------------------------------------------------------------------------
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   565
PrefElement::~PrefElement()
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   566
{
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   567
    // When we update the existing key with newer value:
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   568
    // if the value > 4k, which means a file was created to store the value;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   569
    // we need to delete the old file.
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   570
    // If called from ~Preferences(), we shouldn't do this -- cleanFileFlag is false
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   571
    if ( m_cleanFileFlag && m_valuesize > KMaxKeyValueSize ) {
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   572
        HBufC* filePathExisting = HBufC::NewLC( value().Length() );
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   573
        TPtr fName( filePathExisting->Des() );
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   574
        fName.Append( value() );
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   575
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   576
        RFs fs;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   577
        if ( fs.Connect() == KErrNone ) {
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   578
            fs.Delete(*filePathExisting);
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   579
            fs.Close();
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   580
        }              
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   581
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   582
        CleanupStack::PopAndDestroy(); //filePathExisting
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   583
    }
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   584
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   585
    delete m_value;
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   586
}
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   587
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   588
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   589
// ----------------------------------------------------------------------------
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   590
// PrefElement::setValueL
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
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// set value for a preference
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
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   592
//
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
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   593
//
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
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   594
// ----------------------------------------------------------------------------
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
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   595
void PrefElement::setValueL( const TDesC& value )
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
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   596
{
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
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   597
    if ( m_value ) {
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
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        delete m_value;
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Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
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    }
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
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   600
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
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   601
    m_value  = value.AllocL();
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
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   602
}
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
diff changeset
   603
dd21522fd290 Revision: 200911
Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com>
parents:
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   604
26
cb62a4f66ebe Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   605