author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Thu, 17 Dec 2009 08:40:49 +0200 | |
changeset 0 | f72a12da539e |
permissions | -rw-r--r-- |
0
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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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|
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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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|
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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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|
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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::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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// --------------------------------------------------------------------------- |
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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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: CAsyncOneShot( EPriorityLow ) |
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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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} |
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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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} |
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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 run data |
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Cleanup(); |
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|
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} |
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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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// cancel ongoing process |
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Cancel(); |
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} |
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Call(); |
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} |
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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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} |
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108 |
|
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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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114 |
{ |
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Cleanup(); |
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return KErrNone; |
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} |
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118 |
|
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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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// 1. mark all the existing widgets initially non-valid |
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for( TInt i=0; i<iWidgetsList.WidgetDataCount(); ++i ) |
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iWidgetsList.WidgetData(i).SetValid( EFalse ); |
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128 |
|
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// 2. 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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134 |
|
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// 3. load the widget order |
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iWidgetOrder = CWmPersistentWidgetOrder::NewL( iWmPlugin.FileServer() ); |
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TRAPD( loadError, iWidgetOrder->LoadL() ); |
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138 |
|
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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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for ( TInt i=0; i < contentInfoArray->Array().Count(); i++ ) |
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143 |
{ |
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CHsContentInfo* contentInfo = contentInfoArray->Array()[i]; |
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145 |
|
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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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151 |
{ |
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// keep the existing one |
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existingData->SetValid( ETrue ); |
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} |
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else |
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{ |
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// add a new one |
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AddWidgetDataL( *contentInfo ); |
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++widgetsAdded; |
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} |
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} |
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162 |
|
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// if widgets were added, extend the listbox |
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if ( widgetsAdded ) |
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iWidgetsList.HandleItemAdditionL(); |
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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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} |
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|
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// 6: cleanup |
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CleanupStack::PopAndDestroy( contentInfoArray ); |
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|
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// 7. redraw list |
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if ( widgetsAdded > 0 || widgetsRemoved > 0 ) |
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{ |
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iWidgetsList.DrawDeferred(); |
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} |
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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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iWidgetOrder->StoreL( iWidgetsList.WidgetDataArray() ); |
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} |
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|
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} |
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195 |
|
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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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|
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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 ) |
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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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User::LeaveIfError( iWidgetRegistry->Connect() ); |
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} |
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|
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CWmWidgetData* widgetData = CWmWidgetData::NewLC( |
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aContentInfo, iWidgetRegistry ); |
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widgetData->SetPersistentWidgetOrder( iWidgetOrder ); |
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widgetData->SetValid( ETrue ); |
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iWidgetsList.AddWidgetDataL( widgetData ); |
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CleanupStack::Pop( widgetData ); |
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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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// 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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// delete widget order |
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delete iWidgetOrder; |
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iWidgetOrder = NULL; |
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} |
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|
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// end of file |
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