idlehomescreen/widgetmanager/src/wmwidgetloaderao.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Wed, 09 Jun 2010 09:29:04 +0300
branchRCL_3
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parent 16 9674c1a575e9
child 59 d721605b30d0
permissions -rw-r--r--
Revision: 201021 Kit: 2010123
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/*
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* Copyright (c) 2009 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 "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:
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* Active object to load widgets into list
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*
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*/
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// INCLUDE FILES
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#include "wmcommon.h"
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#include "wmplugin.h"
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#include "wmresourceloader.h"
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#include "wmpersistentwidgetorder.h"
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#include "wmlistbox.h"
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#include "wmwidgetloaderao.h"
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#include "wminstaller.h"
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#include "wmwidgetorderdata.h"
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#include <hscontentcontroller.h> // content control api
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#include <hscontentinfoarray.h> // content control api
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#include <widgetregistryclient.h> // widget reqistry
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#include <avkon.rsg> // avkon resources
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#include <barsread.h> // TResourceReader
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// ---------------------------------------------------------------------------
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// CWmWidgetLoaderAo::NewL
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// ---------------------------------------------------------------------------
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//
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CWmWidgetLoaderAo* CWmWidgetLoaderAo::NewL(
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        CWmPlugin& aWmPlugin,
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        CWmListBox& aTargetList )
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    {
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    CWmWidgetLoaderAo* self = new (ELeave) CWmWidgetLoaderAo(
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            aWmPlugin, aTargetList );
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    CleanupStack::PushL( self );
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    self->ConstructL();
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    CleanupStack::Pop( self );
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    return self;
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    }
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// ---------------------------------------------------------------------------
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// CWmWidgetLoaderAo::NewL
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// ---------------------------------------------------------------------------
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//
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CWmWidgetLoaderAo::CWmWidgetLoaderAo(
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        CWmPlugin& aWmPlugin,
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        CWmListBox& aTargetList )
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    : CActive( EPriorityNormal )
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    , iWmPlugin( aWmPlugin )
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    , iWidgetsList( aTargetList )
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    {
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    iWidgetRegistry = NULL;
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    iWidgetOrder = NULL;
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    iLoading = EFalse;
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    }
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// ---------------------------------------------------------------------------
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// CWmWidgetLoaderAo::ConstructL
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// ---------------------------------------------------------------------------
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//
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void CWmWidgetLoaderAo::ConstructL()
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    {
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    CActiveScheduler::Add( this );
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    }
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// ---------------------------------------------------------------------------
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// CWmWidgetLoaderAo::~CWmWidgetLoaderAo
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// ---------------------------------------------------------------------------
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//
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CWmWidgetLoaderAo::~CWmWidgetLoaderAo()
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    {
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    // cancel ongoing operation
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    Cancel();
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    // cleanup and close session
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    Cleanup();
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    CloseSession();
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    }
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// ---------------------------------------------------------------------------
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// CWmWidgetLoaderAo::StartLoading
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// ---------------------------------------------------------------------------
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//
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void CWmWidgetLoaderAo::StartLoading()
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    {
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    if ( IsActive() )
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        {
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        return; // already active                
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        }
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    // call itself
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    iStatus = KRequestPending;
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    TRequestStatus *pS = (&iStatus);
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    User::RequestComplete( pS, KErrNone );
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    SetActive();
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    }
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// ---------------------------------------------------------------------------
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// CWmWidgetLoaderAo::RunL
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// ---------------------------------------------------------------------------
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//
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void CWmWidgetLoaderAo::RunL()
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    {
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    DoLoadWidgetsL();
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    Cleanup();
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    CloseSession();
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    }
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// ---------------------------------------------------------------------------
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// CWmWidgetLoaderAo::RunError
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// ---------------------------------------------------------------------------
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//
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TInt CWmWidgetLoaderAo::RunError( TInt /*aError*/ )
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    {
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    Cleanup();
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    CloseSession();
1
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    return KErrNone;
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    }
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// ---------------------------------------------------------
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// CWmWidgetLoaderAo::DoCancel
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// ---------------------------------------------------------
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//
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void CWmWidgetLoaderAo::DoCancel()
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    {
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    }
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// ---------------------------------------------------------
1
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// CWmWidgetLoaderAo::DoLoadWidgetsL
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// ---------------------------------------------------------
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//
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void CWmWidgetLoaderAo::DoLoadWidgetsL()
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    {
5
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    // Check if unistallation is ongoing for for some widget
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	// iUninstallUid is null no uninstallation is ongoing
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    iUninstallUid = iWmPlugin.WmInstaller().UninstallUid();
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16
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    // connect to widget registry
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    OpenSessionL();
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2
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    // 1. load the widgets array
1
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    MHsContentController& controller = iWmPlugin.ContentController();    
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    CHsContentInfoArray* contentInfoArray = CHsContentInfoArray::NewL();
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    CleanupStack::PushL( contentInfoArray );
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    controller.WidgetListL( *contentInfoArray );
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2
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    // 2. load the widget order
16
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    if ( iWidgetOrder ) { Cleanup(); }    
1
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    iWidgetOrder = CWmPersistentWidgetOrder::NewL( iWmPlugin.FileServer() );
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    TRAPD( loadError, iWidgetOrder->LoadL() );
16
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    // 3. prepare the widget data array & sort order array
2
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    for( TInt i=0; i<iWidgetsList.WidgetDataCount(); ++i )
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        {
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        iWidgetsList.WidgetData(i).SetPersistentWidgetOrder( iWidgetOrder );
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        iWidgetsList.WidgetData(i).SetValid( EFalse );
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        }
15
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    for( TInt i = 0; i < iWidgetsList.OrderDataArray().Count(); ++i )
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        {
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        iWidgetsList.OrderData(i)->SetPersistentWidgetOrder( iWidgetOrder );
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        }
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1
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    // 4. loop through the content array and compare it against the existing
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    // widget data.
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    TInt widgetsAdded = 0;
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    TInt widgetsChanged = 0;
16
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    iLoading = ETrue;
1
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    while( contentInfoArray->Array().Count() > 0 )
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        {
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        CHsContentInfo* contentInfo = contentInfoArray->Array()[0];
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        if ( !contentInfo ) { break; }
1
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        contentInfoArray->Array().Remove( 0 );
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        // check if this widget exists.
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        // if it does, keep the existing one
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        // if it does not, add it
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        CWmWidgetData* existingData = FindWidgetData( *contentInfo );
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        if ( existingData )
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            {
15
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            // update existing visible widget data
1
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            existingData->SetValid( ETrue );
16
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            if ( existingData->ReplaceContentInfo( contentInfo ) )
1
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                {
15
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                // Update name to order array if name changed
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                for ( TInt i=0; i < iWidgetsList.OrderDataArray().Count(); i++ )
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                    {
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                    CWmWidgetOrderData* order = iWidgetsList.OrderData(i);
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                    if ( order->EqualsTo( 
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                            existingData->Uid(), existingData->PublisherId() ) )
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                        {
16
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                        order->UpdateName( existingData->Name() );
15
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                        }
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                    }
1
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                ++widgetsChanged;
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                }
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            }
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        else
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            {
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            // add a new widget data
16
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            TRAP_IGNORE( AddWidgetDataL( contentInfo, widgetsAdded ); );
1
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            }
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        }
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    // 5: finally, remove all UI widgets that during the loading process were
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    // NOT marked as VALID. those widgets do not exist anymore.
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    TInt widgetsRemoved = 0;
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    for( TInt i=0; i<iWidgetsList.WidgetDataCount(); i++ )
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        {
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        if( !iWidgetsList.WidgetData(i).IsValid() )
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            {
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            iWidgetsList.RemoveWidgetData( i );
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            ++widgetsRemoved;
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            }
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        }
2
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   225
    
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    // update listbox
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    if ( widgetsAdded > 0 )
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        {
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        iWidgetsList.HandleItemAdditionL();
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        }
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   231
    
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    if ( widgetsRemoved > 0 || widgetsAdded > 0 ||
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        widgetsChanged > 0 )
1
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        {
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        iWidgetsList.DrawDeferred();
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        }
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    // 6: cleanup
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    CleanupStack::PopAndDestroy( contentInfoArray );
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    // 7. check list empty condition
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    if ( iWidgetsList.WidgetDataCount() == 0 )
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        {
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        TResourceReader rr;
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        CEikonEnv::Static()->CreateResourceReaderLC(
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                rr, R_AVKON_LISTBOX_DEFAULT_EMPTY_TEXT );
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        TPtrC empty= rr.ReadTPtrC();
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        iWidgetsList.View()->SetListEmptyTextL( empty );
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        CleanupStack::PopAndDestroy();
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        iWidgetsList.DrawDeferred();
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        }
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    // 8. store list order if necessary
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    if ( loadError != KErrNone || widgetsAdded > 0 || widgetsRemoved > 0 )
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        {
16
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        TRAP_IGNORE( iWidgetOrder->StoreL( iWidgetsList.OrderDataArray() ); );
1
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        }
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    }
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// ---------------------------------------------------------
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// CWmWidgetLoaderAo::FindWidgetDataL
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// ---------------------------------------------------------
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//
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CWmWidgetData* CWmWidgetLoaderAo::FindWidgetData(
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        CHsContentInfo& aContentInfo )
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    {
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    CWmWidgetData* data = NULL;
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    for( TInt i=0; i<iWidgetsList.WidgetDataCount() && !data; ++i )
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        {
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        if ( iWidgetsList.WidgetData(i).EqualsTo( aContentInfo ) )
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            {
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            data = &iWidgetsList.WidgetData(i);
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            }
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        }
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    return data;
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    }
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// ---------------------------------------------------------
16
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// CWmWidgetLoaderAo::OpenSessionL
1
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// ---------------------------------------------------------
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//
16
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void CWmWidgetLoaderAo::OpenSessionL()
1
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    {
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    if ( !iWidgetRegistry )
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        {
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        iWidgetRegistry = new (ELeave) RWidgetRegistryClientSession();
15
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        TInt err = iWidgetRegistry->Connect();
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        if ( KErrNone != err )
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            {
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            delete iWidgetRegistry;
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            iWidgetRegistry = NULL;
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            User::Leave( err );
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            }
1
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        }
16
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    }
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// ---------------------------------------------------------
54
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// CWmWidgetLoaderAo::CloseSession
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// ---------------------------------------------------------
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//
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void CWmWidgetLoaderAo::CloseSession()
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    {
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    // disconnect widget registry
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    if ( iWidgetRegistry )
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        {
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        iWidgetRegistry->Disconnect();
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        iWidgetRegistry->Close();
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        delete iWidgetRegistry;
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        iWidgetRegistry = NULL;
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        }
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    }
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// ---------------------------------------------------------
16
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// CWmWidgetLoaderAo::AddWidgetDataL
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// ---------------------------------------------------------
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//
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void CWmWidgetLoaderAo::AddWidgetDataL(
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        CHsContentInfo* aContentInfo, TInt& aCount )
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    {
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    CleanupStack::PushL( aContentInfo );
15
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diff changeset
   321
            
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    // Becouse we show only widgets that can be added we need two arrays
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   323
    // to maintain order data and visible data. 
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   324
    // All widgets are added to listbox's iOrderDataArray and 
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   325
    // widgets that CanBeAdded are added also to iVisibleWidgetArray.
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   326
    CWmWidgetOrderData* order = CWmWidgetOrderData::NewLC(
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   327
            aContentInfo->PublisherId(), 
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   328
            UidFromString( aContentInfo->Uid() ), 
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   329
            aContentInfo->Name(),
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   330
            iWidgetOrder
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   331
            );
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   332
    
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   333
    // add to order data
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   334
    iWidgetsList.AddOrderDataL( order );
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   335
    CleanupStack::Pop( order );
1
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   336
    
15
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   337
    if ( aContentInfo->CanBeAdded() )
5
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diff changeset
   338
        {
16
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   339
        CWmWidgetData* widgetData = CWmWidgetData::NewL(
15
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   340
                iWidgetsList.LogoSize(),
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   341
                iWmPlugin.ResourceLoader(),
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diff changeset
   342
                aContentInfo, iWidgetRegistry );
16
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diff changeset
   343
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   344
        // widgetdata has taken ownership of contentinfo
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   345
        CleanupStack::Pop( aContentInfo );
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   346
        
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   347
        CleanupStack::PushL( widgetData );
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diff changeset
   348
        
15
ff572dfe6d86 Revision: 201007
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parents: 9
diff changeset
   349
        widgetData->SetPersistentWidgetOrder( iWidgetOrder );
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parents: 9
diff changeset
   350
        widgetData->SetValid( ETrue );
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parents: 9
diff changeset
   351
        
ff572dfe6d86 Revision: 201007
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parents: 9
diff changeset
   352
        // start uninstall animation if this widget
ff572dfe6d86 Revision: 201007
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parents: 9
diff changeset
   353
        // is currently been unistalled
ff572dfe6d86 Revision: 201007
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parents: 9
diff changeset
   354
        if ( iUninstallUid != KNullUid &&
ff572dfe6d86 Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 9
diff changeset
   355
            iUninstallUid == widgetData->PublisherUid() )
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parents: 9
diff changeset
   356
            {
ff572dfe6d86 Revision: 201007
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parents: 9
diff changeset
   357
            widgetData->VisualizeUninstallL();
ff572dfe6d86 Revision: 201007
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parents: 9
diff changeset
   358
            }
ff572dfe6d86 Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 9
diff changeset
   359
        // add to visible data
ff572dfe6d86 Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 9
diff changeset
   360
        iWidgetsList.AddWidgetDataL( widgetData, EFalse );
ff572dfe6d86 Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 9
diff changeset
   361
        CleanupStack::Pop( widgetData );
ff572dfe6d86 Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 9
diff changeset
   362
		aCount++;
5
c743ef5928ba Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 2
diff changeset
   363
        }
15
ff572dfe6d86 Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 9
diff changeset
   364
    else
ff572dfe6d86 Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 9
diff changeset
   365
        {
ff572dfe6d86 Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 9
diff changeset
   366
        //delete aContentInfo when it's not added to iVisibleWidgetArray
ff572dfe6d86 Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 9
diff changeset
   367
        CleanupStack::PopAndDestroy( aContentInfo );
ff572dfe6d86 Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 9
diff changeset
   368
        }
1
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parents:
diff changeset
   369
    }
5315654608de Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   370
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parents:
diff changeset
   371
// ---------------------------------------------------------------------------
5315654608de Revision: 200951
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parents:
diff changeset
   372
// CWmWidgetLoaderAo::Cleanup
5315654608de Revision: 200951
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parents:
diff changeset
   373
// ---------------------------------------------------------------------------
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parents:
diff changeset
   374
//
5315654608de Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   375
void CWmWidgetLoaderAo::Cleanup()
5315654608de Revision: 200951
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parents:
diff changeset
   376
    {
16
9674c1a575e9 Revision: 201009
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   377
    iLoading = EFalse;
9674c1a575e9 Revision: 201009
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   378
    
2
08c6ee43b396 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 1
diff changeset
   379
    // delete widget order and references to it
08c6ee43b396 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 1
diff changeset
   380
    for( TInt i=0; i<iWidgetsList.WidgetDataCount(); ++i )
08c6ee43b396 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 1
diff changeset
   381
        {
08c6ee43b396 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 1
diff changeset
   382
        iWidgetsList.WidgetData(i).SetPersistentWidgetOrder( NULL );
08c6ee43b396 Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 1
diff changeset
   383
        }
1
5315654608de Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   384
    delete iWidgetOrder;
5315654608de Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   385
    iWidgetOrder = NULL;
5315654608de Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   386
    }
5315654608de Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   387
15
ff572dfe6d86 Revision: 201007
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parents: 9
diff changeset
   388
// ----------------------------------------------------
ff572dfe6d86 Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 9
diff changeset
   389
// CWmWidgetData::UidFromString
ff572dfe6d86 Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 9
diff changeset
   390
// ----------------------------------------------------
ff572dfe6d86 Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 9
diff changeset
   391
//
ff572dfe6d86 Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 9
diff changeset
   392
TUid CWmWidgetLoaderAo::UidFromString( const TDesC8& aUidString ) const
ff572dfe6d86 Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 9
diff changeset
   393
    {
ff572dfe6d86 Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 9
diff changeset
   394
    TUid uid( KNullUid );
ff572dfe6d86 Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 9
diff changeset
   395
    const TInt KHexPrefixLength = 2;
ff572dfe6d86 Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 9
diff changeset
   396
    if ( aUidString.Length() > KHexPrefixLength )
ff572dfe6d86 Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 9
diff changeset
   397
        {
ff572dfe6d86 Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 9
diff changeset
   398
        TUint id = 0;
ff572dfe6d86 Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 9
diff changeset
   399
        TLex8 lex( aUidString.Mid( KHexPrefixLength ) );
ff572dfe6d86 Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 9
diff changeset
   400
        if ( lex.Val( id, EHex ) == KErrNone )
ff572dfe6d86 Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 9
diff changeset
   401
            {
ff572dfe6d86 Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 9
diff changeset
   402
            uid.iUid = (TInt32)id;
ff572dfe6d86 Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 9
diff changeset
   403
            }
ff572dfe6d86 Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 9
diff changeset
   404
        }
ff572dfe6d86 Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 9
diff changeset
   405
    return uid;
ff572dfe6d86 Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 9
diff changeset
   406
    }
16
9674c1a575e9 Revision: 201009
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   407
9674c1a575e9 Revision: 201009
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   408
// ----------------------------------------------------
9674c1a575e9 Revision: 201009
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   409
// CWmWidgetData::IsLoading
9674c1a575e9 Revision: 201009
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   410
// ----------------------------------------------------
9674c1a575e9 Revision: 201009
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   411
//
9674c1a575e9 Revision: 201009
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   412
TBool CWmWidgetLoaderAo::IsLoading()
9674c1a575e9 Revision: 201009
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   413
    {
9674c1a575e9 Revision: 201009
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   414
    return iLoading;
9674c1a575e9 Revision: 201009
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   415
    }
9674c1a575e9 Revision: 201009
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 15
diff changeset
   416
1
5315654608de Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   417
// end of file
5315654608de Revision: 200951
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   418