appinstaller/AppMngr2/src/appmngr2listcontainer.cpp
changeset 0 ba25891c3a9e
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     1 /*
       
     2 * Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description:   Base class for AppMngr2 list view containers
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 #include "appmngr2listcontainer.h"      // CAppMngr2ListContainer
       
    20 #include "appmngr2appui.h"              // CAppMngr2AppUi
       
    21 #include "appmngr2model.h"              // CAppMngr2Model
       
    22 #include "appmngr2listview.h"           // CAppMngr2ListView
       
    23 #include "appmngr2.hrh"                 // Icon IDs
       
    24 #include <appmngr2runtime.h>            // CAppMngr2Runtime
       
    25 #include <appmngr2infobase.h>           // CAppMngr2InfoBase
       
    26 #include <appmngr2debugutils.h>         // FLOG macros
       
    27 #include <aknlists.h>                   // CAknDoubleLargeStyleListBox
       
    28 #include <eiktxlbm.h>                   // CTextListBoxModel
       
    29 #include <AknIconArray.h>               // CAknIconArray
       
    30 #include <StringLoader.h>               // StringLoader
       
    31 #include <gulicon.h>                    // CGulIcon
       
    32 
       
    33 const TInt KGranularity = 8;
       
    34 const TInt KSpaceForTabsAndIconIndexes = 9; // 3 tabs + 2 * 3 digits
       
    35 _LIT( KItemFormatFull,  "%d\t%S\t%S\t%d" );
       
    36 _LIT( KItemFormatNoInd, "%d\t%S\t%S" );
       
    37 
       
    38 
       
    39 // ======== MEMBER FUNCTIONS ========
       
    40 
       
    41 // ---------------------------------------------------------------------------
       
    42 // CAppMngr2ListContainer::CAppMngr2ListContainer()
       
    43 // ---------------------------------------------------------------------------
       
    44 //
       
    45 CAppMngr2ListContainer::CAppMngr2ListContainer( CAppMngr2ListView& aView )
       
    46         : iView( aView )
       
    47     {
       
    48     }
       
    49 
       
    50 // ---------------------------------------------------------------------------
       
    51 // CAppMngr2ListContainer::~CAppMngr2ListContainer()
       
    52 // ---------------------------------------------------------------------------
       
    53 //
       
    54 CAppMngr2ListContainer::~CAppMngr2ListContainer()
       
    55     {
       
    56     delete iListBox;
       
    57     delete iItemArray;
       
    58     }
       
    59 
       
    60 // ---------------------------------------------------------------------------
       
    61 // CAppMngr2ListContainer::OfferKeyEventL()
       
    62 // ---------------------------------------------------------------------------
       
    63 //
       
    64 TKeyResponse CAppMngr2ListContainer::OfferKeyEventL(
       
    65         const TKeyEvent& aKeyEvent, TEventCode aType )
       
    66     {
       
    67     TKeyResponse response = iListBox->OfferKeyEventL( aKeyEvent, aType ); 
       
    68     if( aKeyEvent.iCode == EKeyUpArrow || aKeyEvent.iCode == EKeyDownArrow )
       
    69         {
       
    70         iView.UpdateMiddleSoftkeyCommandL();
       
    71         iView.CurrentItemSelectedByUser( ETrue );
       
    72         }
       
    73     return response;
       
    74     }
       
    75 
       
    76 // ---------------------------------------------------------------------------
       
    77 // CAppMngr2ListContainer::HandleResourceChange()
       
    78 // ---------------------------------------------------------------------------
       
    79 //
       
    80 void CAppMngr2ListContainer::HandleResourceChange( TInt aType )
       
    81     {
       
    82     CCoeControl::HandleResourceChange( aType );
       
    83 
       
    84     if( aType == KAknsMessageSkinChange )
       
    85         {
       
    86         TRAP_IGNORE( LoadIconsL() );
       
    87         }
       
    88 
       
    89     if( aType == KEikDynamicLayoutVariantSwitch )
       
    90         {
       
    91         TRect mainPaneRect;
       
    92         if( AknLayoutUtils::LayoutMetricsRect( AknLayoutUtils::EMainPane,
       
    93                 mainPaneRect ) )
       
    94             {
       
    95             SetRect( mainPaneRect );
       
    96             }
       
    97         DrawDeferred();
       
    98         }
       
    99     }
       
   100 
       
   101 // ---------------------------------------------------------------------------
       
   102 // CAppMngr2ListContainer::SizeChanged()
       
   103 // ---------------------------------------------------------------------------
       
   104 //
       
   105 void CAppMngr2ListContainer::SizeChanged()
       
   106     {
       
   107     if( iListBox )
       
   108         {
       
   109         iListBox->SetRect( Rect() );
       
   110         }
       
   111     }
       
   112 
       
   113 // ---------------------------------------------------------------------------
       
   114 // CAppMngr2ListContainer::CountComponentControls()
       
   115 // ---------------------------------------------------------------------------
       
   116 //
       
   117 TInt CAppMngr2ListContainer::CountComponentControls() const
       
   118     {
       
   119     return 1;   // always only iListBox
       
   120     }
       
   121 
       
   122 // ---------------------------------------------------------------------------
       
   123 // CAppMngr2ListContainer::ComponentControl()
       
   124 // ---------------------------------------------------------------------------
       
   125 //
       
   126 CCoeControl* CAppMngr2ListContainer::ComponentControl( TInt /*aIndex*/ ) const
       
   127     {
       
   128     return iListBox;
       
   129     }
       
   130 
       
   131 // ---------------------------------------------------------------------------
       
   132 // CAppMngr2ListContainer::HandleListBoxEventL()
       
   133 // ---------------------------------------------------------------------------
       
   134 //
       
   135 void CAppMngr2ListContainer::HandleListBoxEventL( CEikListBox* /*aListBox*/,
       
   136         TListBoxEvent aEventType )
       
   137     {
       
   138     if( aEventType == EEventItemClicked || aEventType == EEventItemSingleClicked )
       
   139         {
       
   140         iView.UpdateMiddleSoftkeyCommandL();
       
   141         iView.CurrentItemSelectedByUser( ETrue );
       
   142         }
       
   143     }
       
   144 
       
   145 // ---------------------------------------------------------------------------
       
   146 // CAppMngr2ListContainer::IsListEmpty()
       
   147 // ---------------------------------------------------------------------------
       
   148 //
       
   149 TBool CAppMngr2ListContainer::IsListEmpty() const
       
   150     {
       
   151     if( iItemArray )
       
   152         {
       
   153         return ( iItemArray->Count() == 0 );
       
   154         }
       
   155     return ETrue;
       
   156     }
       
   157 
       
   158 // ---------------------------------------------------------------------------
       
   159 // CAppMngr2ListContainer::HandleGenericCommandL()
       
   160 // ---------------------------------------------------------------------------
       
   161 //
       
   162 void CAppMngr2ListContainer::HandleGenericCommandL( TInt aCommand )
       
   163     {
       
   164     if( !IsListEmpty() )
       
   165         {
       
   166         CAppMngr2InfoBase& currentItem = CurrentItem();
       
   167         if( currentItem.SupportsGenericCommand( aCommand ) )
       
   168             {
       
   169             Model().HandleCommandL( currentItem, aCommand );
       
   170             }
       
   171         }
       
   172     }
       
   173 
       
   174 // ---------------------------------------------------------------------------
       
   175 // CAppMngr2ListContainer::RefreshL()
       
   176 // ---------------------------------------------------------------------------
       
   177 //
       
   178 void CAppMngr2ListContainer::RefreshL( TBool aPreserveSelectedItem,
       
   179         TBool& aSelectedItemChanged, TInt aMoreRefreshesExpected )
       
   180     {
       
   181     FLOG( "CAppMngr2ListContainer::RefreshL( %d )", aPreserveSelectedItem );
       
   182     
       
   183     // Record the item text of the current item if selection must be preserved in
       
   184     // the current item. The item text is used to identify the item later, so that
       
   185     // it can be selected again.
       
   186     HBufC* itemText = NULL;
       
   187     TInt currentItemIndex = iListBox->CurrentItemIndex();
       
   188     if( aPreserveSelectedItem && currentItemIndex >= 0 )
       
   189         {
       
   190         itemText = (*iItemArray)[ currentItemIndex ].AllocL();
       
   191         CleanupStack::PushL( itemText );
       
   192         }
       
   193 
       
   194     SetEmptyTextL( aMoreRefreshesExpected );    // defines empty text in first refresh
       
   195     CreateItemArrayL();                         // resets the item array
       
   196     PopulateItemArrayL();                       // fills in new items
       
   197     iListBox->HandleItemAdditionL();            // re-calculates size and scrollbar
       
   198     
       
   199     // If selection must be preserved, search the item in new item array
       
   200     // and select it again. Make sure to delete itemText if it was allocated.
       
   201     TBool currentItemSet = EFalse;
       
   202     TInt itemCount = iItemArray->Count();
       
   203     if( itemText )
       
   204         {
       
   205         for( TInt index = 0; index < itemCount && !currentItemSet; index++ )
       
   206             {
       
   207             if( itemText->Compare( (*iItemArray)[ index ] ) == 0 )
       
   208                 {
       
   209                 iListBox->SetCurrentItemIndex( index );
       
   210                 currentItemSet = ETrue;
       
   211                 }
       
   212             }
       
   213         CleanupStack::PopAndDestroy( itemText );
       
   214         }
       
   215     
       
   216     // If item is not found (it may have been deleted), then tell to the
       
   217     // caller that the selected item was changed and select another item
       
   218     // from the same row number than the previously selected item.
       
   219     aSelectedItemChanged = !currentItemSet;
       
   220     if( aSelectedItemChanged )
       
   221         {
       
   222         if( currentItemIndex >= itemCount )
       
   223             {
       
   224             currentItemIndex = itemCount - 1;
       
   225             }
       
   226         if( currentItemIndex < 0 )
       
   227             {
       
   228             currentItemIndex = 0;
       
   229             }
       
   230         if( currentItemIndex != iListBox->CurrentItemIndex() )
       
   231             {
       
   232             iListBox->SetCurrentItemIndex( currentItemIndex );
       
   233             }
       
   234         }
       
   235     }
       
   236 
       
   237 // ---------------------------------------------------------------------------
       
   238 // CAppMngr2ListContainer::ConstructL()
       
   239 // ---------------------------------------------------------------------------
       
   240 //
       
   241 void CAppMngr2ListContainer::ConstructL( const TRect& aRect )
       
   242     {
       
   243     CreateWindowL();
       
   244     SetRect( aRect );
       
   245     iListBox = new (ELeave) CAknDoubleLargeStyleListBox;
       
   246     iListBox->SetContainerWindowL( *this );
       
   247     iListBox->ConstructL( this, EAknListBoxSelectionList );
       
   248     iListBox->SetListBoxObserver( this );
       
   249     
       
   250     // Dont display default "(no data)" empty text
       
   251     iListBox->View()->SetListEmptyTextL( KNullDesC );
       
   252 
       
   253     LoadIconsL();
       
   254     CreateItemArrayL();
       
   255     PopulateItemArrayL();
       
   256     
       
   257     iListBox->CreateScrollBarFrameL();
       
   258     iListBox->ScrollBarFrame()->SetScrollBarVisibilityL(
       
   259             CEikScrollBarFrame::EOff, CEikScrollBarFrame::EAuto );
       
   260     iListBox->SetRect( aRect.Size() );
       
   261     
       
   262     // Enable marquee effect
       
   263     iListBox->ItemDrawer()->ColumnData()->EnableMarqueeL( ETrue );
       
   264     }
       
   265 
       
   266 // ---------------------------------------------------------------------------
       
   267 // CAppMngr2ListContainer::Model()
       
   268 // ---------------------------------------------------------------------------
       
   269 //
       
   270 CAppMngr2Model& CAppMngr2ListContainer::Model() const
       
   271     {
       
   272     return reinterpret_cast<CAppMngr2AppUi*>( iEikonEnv->EikAppUi() )->Model();
       
   273     }
       
   274 
       
   275 // ---------------------------------------------------------------------------
       
   276 // CAppMngr2ListContainer::LoadIconsL()
       
   277 // ---------------------------------------------------------------------------
       
   278 //
       
   279 void CAppMngr2ListContainer::LoadIconsL()
       
   280     {
       
   281     CAknIconArray* iconArray = new ( ELeave ) CAknIconArray( KGranularity );
       
   282     CleanupStack::PushL( iconArray );
       
   283     Model().LoadIconsL( *iconArray );
       
   284     delete iListBox->ItemDrawer()->ColumnData()->IconArray();
       
   285     iListBox->ItemDrawer()->ColumnData()->SetIconArray( iconArray );
       
   286     CleanupStack::Pop( iconArray );
       
   287     iItemSpecificIcons = 0;
       
   288     }
       
   289 
       
   290 // ---------------------------------------------------------------------------
       
   291 // CAppMngr2ListContainer::CreateItemArrayL()
       
   292 // ---------------------------------------------------------------------------
       
   293 //
       
   294 void CAppMngr2ListContainer::CreateItemArrayL()
       
   295     {
       
   296     if( iItemArray )
       
   297         {
       
   298         iListBox->Model()->SetItemTextArray( NULL );
       
   299         delete iItemArray;
       
   300         iItemArray = NULL;
       
   301         }
       
   302     iItemArray = new ( ELeave ) CDesCArrayFlat( KGranularity );
       
   303     iListBox->Model()->SetItemTextArray( iItemArray );
       
   304     iListBox->Model()->SetOwnershipType( ELbmDoesNotOwnItemArray );
       
   305     }
       
   306 
       
   307 // ---------------------------------------------------------------------------
       
   308 // CAppMngr2ListContainer::PopulateItemArrayL()
       
   309 // ---------------------------------------------------------------------------
       
   310 //
       
   311 void CAppMngr2ListContainer::PopulateItemArrayL()
       
   312     {
       
   313     FLOG( "CAppMngr2ListContainer::PopulateItemArrayL()" );
       
   314     
       
   315     CArrayPtr<CGulIcon>* iconArray = iListBox->ItemDrawer()->ColumnData()->IconArray();
       
   316     DeleteItemSpecificIcons( *iconArray );
       
   317     
       
   318     TInt count = ItemCount();
       
   319     for( TInt index = 0; index < count; index++ )
       
   320         {
       
   321         const CAppMngr2InfoBase& appInfo = ItemInfo( index );
       
   322 
       
   323         // Get name and details
       
   324         TPtrC name = appInfo.Name();
       
   325         TPtrC size = appInfo.Details();
       
   326 
       
   327         // Get icon indexes that plugin loaded in LoadIconsL()
       
   328         TInt iconIndexBase;
       
   329         TInt iconIndexMax;
       
   330         Model().GetIconIndexesL( appInfo.Runtime().RuntimeUid(),
       
   331                 iconIndexBase, iconIndexMax );
       
   332         
       
   333         // Get list icon index from plugin
       
   334         TInt iconIndex = appInfo.IconIndex();
       
   335         
       
   336         // Convert index into the range of 0 .. (icons - 1)
       
   337         if( iconIndex == EAppMngr2UseSpecificIcon )
       
   338             {
       
   339             CGulIcon* icon = NULL;
       
   340             TRAP_IGNORE( icon = appInfo.SpecificIconL() );
       
   341             if( icon )
       
   342                 {
       
   343                 CleanupStack::PushL( icon );
       
   344                 iconIndex = iconArray->Count();
       
   345                 iconArray->AppendL( icon );
       
   346                 CleanupStack::Pop( icon );
       
   347                 iItemSpecificIcons++;
       
   348                 }
       
   349             else
       
   350                 {
       
   351                 iconIndex = EAppMngr2IconIndex_QgnPropUnknown;
       
   352                 }
       
   353             }
       
   354         else
       
   355             {
       
   356             // There are no default list icons that plugins could use, so
       
   357             // this must be list icon that plugin has loaded in LoadIconsL().
       
   358             // Icons (of this plugin) are indexed from iconIndexBase.
       
   359             iconIndex += iconIndexBase;
       
   360 
       
   361             // Plugin should use only those icons it has provided. Use
       
   362             // default unknown icon if plugin tries to use icons that
       
   363             // another plugin has loaded.
       
   364             if( iconIndex < iconIndexBase || iconIndex >= iconIndexMax )
       
   365                 {
       
   366                 iconIndex = EAppMngr2IconIndex_QgnPropUnknown;
       
   367                 }
       
   368             }
       
   369         // Sanity check - index must be in range, otherwise list panics 
       
   370         if( iconIndex < 0 || iconIndex >= iconArray->Count() )
       
   371             {
       
   372             iconIndex = EAppMngr2IconIndex_QgnPropUnknown;
       
   373             }
       
   374 
       
   375         // Get indicator icon index from plugin
       
   376         TInt indIconIndex = appInfo.IndicatorIconIndex();
       
   377         
       
   378         // Convert indicator icon index into the range of 0 .. (icons-1) or
       
   379         // leave special value EAppMngr2NoIndicatorIcon in it
       
   380         if( indIconIndex == EAppMngr2UseSpecificIcon )
       
   381             {
       
   382             CGulIcon* icon = NULL;
       
   383             TRAP_IGNORE( icon = appInfo.SpecificIndicatorIconL() );
       
   384             if( icon )
       
   385                 {
       
   386                 CleanupStack::PushL( icon );
       
   387                 indIconIndex = iconArray->Count();
       
   388                 iconArray->AppendL( icon );
       
   389                 CleanupStack::Pop( icon );
       
   390                 iItemSpecificIcons++;
       
   391                 }
       
   392             else
       
   393                 {
       
   394                 indIconIndex = EAppMngr2NoIndicatorIcon;
       
   395                 }
       
   396             }
       
   397         else
       
   398             {
       
   399             // EAppMngr2NoIndicatorIcon is special value that is handled later
       
   400             if( indIconIndex != EAppMngr2NoIndicatorIcon )
       
   401                 {
       
   402                 // Default icon indexes (starting from EAppMngr2NoIndicatorIcon) are
       
   403                 // all above the icon index range reserved for plugins
       
   404                 if( indIconIndex > EAppMngr2NoIndicatorIcon )
       
   405                     {
       
   406                     // Use default icons, indexes start from zero
       
   407                     indIconIndex -= ( EAppMngr2NoIndicatorIcon + 1 );
       
   408                     }
       
   409                 else
       
   410                     {
       
   411                     // Use item specific icons, indexes start from iconIndexBase
       
   412                     indIconIndex += iconIndexBase;
       
   413                     }
       
   414                 }
       
   415             }
       
   416         // Sanity check - icon index must be in range, otherwise list panics
       
   417         if( ( indIconIndex != EAppMngr2NoIndicatorIcon ) &&
       
   418                 ( indIconIndex < 0 || indIconIndex >= iconArray->Count() ) )
       
   419             {
       
   420             indIconIndex = EAppMngr2NoIndicatorIcon;
       
   421             }
       
   422 
       
   423         // Construct line to be displayed
       
   424         HBufC* temp = HBufC::NewLC( name.Length() + size.Length() + KSpaceForTabsAndIconIndexes );
       
   425         TPtr line = temp->Des();
       
   426         if( indIconIndex == EAppMngr2NoIndicatorIcon )
       
   427             {
       
   428             line.AppendFormat( KItemFormatNoInd, iconIndex, &name, &size );
       
   429             }
       
   430         else
       
   431             {
       
   432             line.AppendFormat( KItemFormatFull, iconIndex, &name, &size, indIconIndex );
       
   433             }
       
   434         iItemArray->AppendL( line );
       
   435         FLOG( "CAppMngr2ListContainer::PopulateItemArrayL(): %S", temp );
       
   436         CleanupStack::PopAndDestroy( temp );
       
   437         }
       
   438     }
       
   439 
       
   440 // ---------------------------------------------------------------------------
       
   441 // CAppMngr2ListContainer::DeleteItemSpecificIcons()
       
   442 // ---------------------------------------------------------------------------
       
   443 //
       
   444 void CAppMngr2ListContainer::DeleteItemSpecificIcons( CArrayPtr<CGulIcon>& aIconArray )
       
   445     {
       
   446     if( iItemSpecificIcons )
       
   447         {
       
   448         TInt iconArrayCount = aIconArray.Count();
       
   449         TInt firstItemSpecificIcon = iconArrayCount - iItemSpecificIcons;
       
   450         for( TInt index = firstItemSpecificIcon; index < iconArrayCount; index++ )
       
   451             {
       
   452             delete aIconArray[ index ];
       
   453             }
       
   454         aIconArray.Delete( firstItemSpecificIcon, iItemSpecificIcons );
       
   455         iItemSpecificIcons = 0;
       
   456         }
       
   457     }
       
   458 
       
   459 // ---------------------------------------------------------------------------
       
   460 // CAppMngr2ListContainer::SetEmptyTextL()
       
   461 // ---------------------------------------------------------------------------
       
   462 //
       
   463 void CAppMngr2ListContainer::SetEmptyTextL( TInt aMoreRefreshesExpected )
       
   464     {
       
   465     // Set empty text if it is not already set
       
   466     CListBoxView* view = iListBox->View();
       
   467     if( view )
       
   468         {
       
   469         const TDesC* text = view->EmptyListText();
       
   470         if( text == NULL || text->Length() == 0 )
       
   471             {
       
   472             // The first refresh may happen too soon. If there are no items
       
   473             // to be displayed, and more refreshes are still expected, then
       
   474             // do not set the empty text yet -- it would be displayed.
       
   475             if( ItemCount() > 0 || !aMoreRefreshesExpected )
       
   476                 {
       
   477                 HBufC* emptyText = StringLoader::LoadLC( ListEmptyTextResourceId() );
       
   478                 view->SetListEmptyTextL( *emptyText );
       
   479                 CleanupStack::PopAndDestroy( emptyText );
       
   480                 }
       
   481             }
       
   482         }
       
   483     }
       
   484