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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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if ( iObserver )
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{
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iObserver->LoadDoneL( iWidgetListChanged );
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}
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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();
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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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// ---------------------------------------------------------
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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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{
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iWidgetListChanged = EFalse;
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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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// connect to widget registry
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OpenSessionL();
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// 1. load the widgets array
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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. load the widget order
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if ( iWidgetOrder ) { Cleanup(); }
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iWidgetOrder = CWmPersistentWidgetOrder::NewL( iWmPlugin.FileServer() );
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TRAPD( loadError, iWidgetOrder->LoadL() );
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// 3. prepare the widget data array & sort order array
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for( TInt i=0; i<iWidgetsList.WidgetDataCount(); ++i )
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{
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iWidgetsList.WidgetData(i, ETrue ).SetPersistentWidgetOrder( iWidgetOrder );
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iWidgetsList.WidgetData(i, ETrue ).SetValid( EFalse );
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}
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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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// 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;
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iLoading = ETrue;
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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; }
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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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{
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// update existing visible widget data
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existingData->SetValid( ETrue );
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if ( existingData->ReplaceContentInfo( contentInfo ) )
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{
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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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{
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order->UpdateName( existingData->Name() );
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}
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}
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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
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TRAP_IGNORE( AddWidgetDataL( contentInfo, widgetsAdded ); );
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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, ETrue ).IsValid() )
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{
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iWidgetsList.RemoveWidgetData( i, ETrue );
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++widgetsRemoved;
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}
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}
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// update listbox
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if ( widgetsAdded > 0 && !iWidgetsList.IsFindPaneIsVisible() )
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{
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iWidgetsList.HandleItemAdditionL();
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}
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if ( widgetsRemoved > 0 || widgetsAdded > 0 ||
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widgetsChanged > 0 )
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{
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if ( !iWidgetsList.IsFindPaneIsVisible() )
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{
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iWidgetsList.DrawDeferred();
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}
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iWidgetListChanged = ETrue;
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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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{
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TRAP_IGNORE( iWidgetOrder->StoreL( iWidgetsList.OrderDataArray() ); );
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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, ETrue ).EqualsTo( aContentInfo ) )
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{
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data = &iWidgetsList.WidgetData(i, ETrue );
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}
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}
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return data;
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}
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// ---------------------------------------------------------
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// CWmWidgetLoaderAo::OpenSessionL
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// ---------------------------------------------------------
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//
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void CWmWidgetLoaderAo::OpenSessionL()
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{
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if ( !iWidgetRegistry )
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{
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iWidgetRegistry = new (ELeave) RWidgetRegistryClientSession();
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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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}
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}
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}
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// ---------------------------------------------------------
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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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// ---------------------------------------------------------
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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 );
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// Becouse we show only widgets that can be added we need two arrays
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// to maintain order data and visible data.
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// All widgets are added to listbox's iOrderDataArray and
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// widgets that CanBeAdded are added also to iVisibleWidgetArray.
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CWmWidgetOrderData* order = CWmWidgetOrderData::NewLC(
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aContentInfo->PublisherId(),
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UidFromString( aContentInfo->Uid() ),
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aContentInfo->Name(),
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iWidgetOrder
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);
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// add to order data
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iWidgetsList.AddOrderDataL( order );
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CleanupStack::Pop( order );
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if ( aContentInfo->CanBeAdded() )
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{
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CWmWidgetData* widgetData = CWmWidgetData::NewL(
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iWidgetsList.LogoSize(),
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iWmPlugin.ResourceLoader(),
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aContentInfo, iWidgetRegistry );
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// widgetdata has taken ownership of contentinfo
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CleanupStack::Pop( aContentInfo );
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CleanupStack::PushL( widgetData );
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widgetData->SetPersistentWidgetOrder( iWidgetOrder );
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widgetData->SetValid( ETrue );
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// start uninstall animation if this widget
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// is currently been unistalled
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if ( iUninstallUid != KNullUid &&
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iUninstallUid == widgetData->PublisherUid() )
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{
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widgetData->VisualizeUninstallL();
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}
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// add to visible data
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iWidgetsList.AddWidgetDataL( widgetData, EFalse );
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CleanupStack::Pop( widgetData );
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aCount++;
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}
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else
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{
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//delete aContentInfo when it's not added to iVisibleWidgetArray
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CleanupStack::PopAndDestroy( aContentInfo );
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}
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}
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// ---------------------------------------------------------------------------
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// CWmWidgetLoaderAo::Cleanup
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// ---------------------------------------------------------------------------
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//
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void CWmWidgetLoaderAo::Cleanup()
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{
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iLoading = EFalse;
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// delete widget order and references to it
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for( TInt i=0; i<iWidgetsList.WidgetDataCount(); ++i )
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{
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iWidgetsList.WidgetData(i, ETrue ).SetPersistentWidgetOrder( NULL );
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}
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delete iWidgetOrder;
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iWidgetOrder = NULL;
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}
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// ----------------------------------------------------
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// CWmWidgetData::UidFromString
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// ----------------------------------------------------
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//
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TUid CWmWidgetLoaderAo::UidFromString( const TDesC8& aUidString ) const
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{
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TUid uid( KNullUid );
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const TInt KHexPrefixLength = 2;
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if ( aUidString.Length() > KHexPrefixLength )
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{
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TUint id = 0;
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TLex8 lex( aUidString.Mid( KHexPrefixLength ) );
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if ( lex.Val( id, EHex ) == KErrNone )
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{
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uid.iUid = (TInt32)id;
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}
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}
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return uid;
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}
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// ----------------------------------------------------
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// CWmWidgetData::IsLoading
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// ----------------------------------------------------
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//
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TBool CWmWidgetLoaderAo::IsLoading()
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{
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return iLoading;
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}
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// ----------------------------------------------------
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// CWmWidgetData::SetObserver
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// ----------------------------------------------------
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//
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void CWmWidgetLoaderAo::SetObserver( MWmWidgetloaderObserver* aObserver )
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{
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iObserver = aObserver;
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}
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// end of file
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