idlefw/plugins/mcsplugin/publisher/src/mcspluginengine.cpp
changeset 0 79c6a41cd166
child 1 844b978f8d5e
equal deleted inserted replaced
-1:000000000000 0:79c6a41cd166
       
     1 /*
       
     2 * Copyright (c) 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:  The engine class of MCS plugin. 
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 // INCLUDE FILES
       
    20 #include "mcspluginengine.h"
       
    21 
       
    22 #include <gulicon.h>
       
    23 #include <AknsItemID.h>
       
    24 #include <gslauncher.h>
       
    25 #include <aisystemuids.hrh>
       
    26 
       
    27 #include <mcsmenuitem.h>
       
    28 #include <mcsmenufilter.h>
       
    29 #include <mcsmenuoperation.h>
       
    30 #include <mcsmenuiconutility.h>
       
    31 #include <ActiveFavouritesDbNotifier.h>
       
    32 #include <FavouritesItemList.h>
       
    33 
       
    34 #include <bautils.h>
       
    35 #include <StringLoader.h>
       
    36 #include <aknnotedialog.h>
       
    37 #include <avkon.rsg>
       
    38 #include <mcspluginres.rsg>
       
    39 #include "mcsplugin.h"
       
    40 #include "mcsplugindata.h"
       
    41 #include "mcspluginuids.hrh"
       
    42 
       
    43 #include <apgtask.h>
       
    44 #include <apgcli.h> 
       
    45 #include <apacmdln.h>
       
    46 #include <gfxtranseffect/gfxtranseffect.h>      // For Transition effect
       
    47 #include <akntranseffect.h>
       
    48 
       
    49 #include <AknsConstants.h>
       
    50 _LIT( KMyMenuData, "matrixmenudata" );
       
    51 _LIT( KSkin,         "skin" );
       
    52 _LIT( KMif,          "mif" );
       
    53 _LIT( KResourceDrive, "Z:" );
       
    54 _LIT( KResourceFile, "mcspluginres.rsc" );
       
    55 _LIT( KResPath, "\\resource\\" );
       
    56 _LIT( KMenuAttrRefcount, "ref_count" );
       
    57 _LIT( KMMApplication, "mm://" );
       
    58 _LIT( KHideExit, "?exit=hide" );
       
    59 _LIT( KHideExit2, "&exit=hide" );
       
    60 _LIT( KSetFocusString, "!setfocus?applicationgroup_name=" );
       
    61 _LIT( KApplicationGroupName, "applicationgroup_name" );
       
    62 _LIT( KSuiteName, "suite_name" );
       
    63 _LIT( KIcon, "icon" );
       
    64 _LIT( KMenuAttrUndefUid, "0x99999991" );
       
    65 
       
    66 const TUid KHomescreenUid = { AI_UID3_AIFW_COMMON };
       
    67 const TUid KMMUid = { 0x101F4CD2 };
       
    68 
       
    69 // ======== LOCAL FUNCTIONS ========
       
    70 
       
    71 static TPtrC NextIdToken( TLex& aLexer )
       
    72    {
       
    73    aLexer.SkipSpace();
       
    74    aLexer.Mark();
       
    75    while( !aLexer.Eos() && !aLexer.Peek().IsSpace() && aLexer.Peek() != ')' )
       
    76        {
       
    77        aLexer.Inc();
       
    78        }
       
    79    return aLexer.MarkedToken();
       
    80    }
       
    81 
       
    82 // ============================ MEMBER FUNCTIONS ===============================
       
    83 // ---------------------------------------------------------
       
    84 // Default constructor
       
    85 // ---------------------------------------------------------
       
    86 //
       
    87 CMCSPluginEngine::CMCSPluginEngine( CMCSPlugin& aPlugin, const TDesC8& aInstanceUid ) 
       
    88     : iPlugin( aPlugin ), iInstanceUid( aInstanceUid ),
       
    89       iSuspend( EFalse )
       
    90     {
       
    91     }
       
    92     
       
    93 // ---------------------------------------------------------
       
    94 // Two-phased constructor.
       
    95 // Create instance of concrete ECOM interface implementation
       
    96 // ---------------------------------------------------------
       
    97 //
       
    98 CMCSPluginEngine* CMCSPluginEngine::NewL( CMCSPlugin& aPlugin, const TDesC8& aInstanceUid )
       
    99     {
       
   100     CMCSPluginEngine* self = new( ELeave ) CMCSPluginEngine( aPlugin, aInstanceUid );
       
   101     CleanupStack::PushL( self );
       
   102     self->ConstructL();
       
   103     CleanupStack::Pop( self );
       
   104 
       
   105     return self;
       
   106     }
       
   107 
       
   108 // ---------------------------------------------------------
       
   109 // Symbian 2nd phase constructor can leave
       
   110 // ---------------------------------------------------------
       
   111 //
       
   112 void CMCSPluginEngine::ConstructL()
       
   113     {
       
   114     TFullName resourceFile( KResourceDrive );
       
   115     resourceFile.Append( KResPath );
       
   116     resourceFile.Append( KResourceFile );
       
   117     BaflUtils::NearestLanguageFile(
       
   118         CCoeEnv::Static()->FsSession(),
       
   119         resourceFile );
       
   120     iResourceOffset =
       
   121         CCoeEnv::Static()->AddResourceFileL( resourceFile );
       
   122     InitL();
       
   123     StartObservingL();
       
   124     }
       
   125     
       
   126 
       
   127 // ---------------------------------------------------------
       
   128 // Destructor.
       
   129 // ---------------------------------------------------------
       
   130 //
       
   131 CMCSPluginEngine::~CMCSPluginEngine()
       
   132     {
       
   133     StopObserving();
       
   134     
       
   135     delete iPluginData;
       
   136     iNotifier.Close();
       
   137     iMenu.Close();
       
   138     //iWatcher->Cancel();
       
   139     delete iWatcher;
       
   140     delete iNotifyWatcher;
       
   141     CCoeEnv::Static()->DeleteResourceFile( iResourceOffset );
       
   142     }
       
   143 
       
   144 
       
   145 // ---------------------------------------------------------------------------
       
   146 // 
       
   147 // ---------------------------------------------------------------------------
       
   148 //
       
   149 void CMCSPluginEngine::InitL()
       
   150     {
       
   151     iMenu.OpenL( KMyMenuData );
       
   152     iPluginData = CMCSPluginData::NewL( *this, iInstanceUid );
       
   153     iWatcher = CMCSPluginWatcher::NewL( CMCSPluginWatcher::EOperation );
       
   154     TInt err = iNotifier.Open( iMenu ); 
       
   155     if ( err == KErrNone )
       
   156         {
       
   157         iNotifyWatcher = CMCSPluginWatcher::NewL( CMCSPluginWatcher::ENotify );
       
   158         iNotifier.Notify( 0,
       
   159             RMenuNotifier::EItemsAddedRemoved |
       
   160             RMenuNotifier::EItemsReordered |
       
   161             RMenuNotifier::EItemAttributeChanged,
       
   162             iNotifyWatcher->iStatus );
       
   163         iNotifyWatcher->WatchNotify( this );
       
   164         }
       
   165     }
       
   166 
       
   167 // ---------------------------------------------------------------------------
       
   168 // Tells the settings container to start observing for changes
       
   169 // ---------------------------------------------------------------------------
       
   170 //
       
   171 void CMCSPluginEngine::StartObservingL()
       
   172     {
       
   173     // registering to bookmarks db. changes observing
       
   174     User::LeaveIfError( iBookmarkSession.Connect() );
       
   175     User::LeaveIfError( iBookmarkDb.Open( iBookmarkSession, KBrowserBookmarks ) );
       
   176 
       
   177     iBookmarkDbObserver = new (ELeave) CActiveFavouritesDbNotifier(
       
   178                                         iBookmarkDb, *this );
       
   179     iBookmarkDbObserver->Start();
       
   180 
       
   181     // registering to mailbox db. changes observing
       
   182     iMsvSession = CMsvSession::OpenAsObserverL( *this) ;
       
   183     }
       
   184 
       
   185 // ---------------------------------------------------------------------------
       
   186 // Tells the settings container to stop observing for changes
       
   187 // ---------------------------------------------------------------------------
       
   188 //
       
   189 void CMCSPluginEngine::StopObserving()
       
   190     {
       
   191     if ( iBookmarkDbObserver )
       
   192         {
       
   193         delete iBookmarkDbObserver;
       
   194         iBookmarkDbObserver = NULL;
       
   195         }
       
   196     iBookmarkDb.Close();
       
   197     iBookmarkSession.Close();
       
   198 
       
   199     if ( iMsvSession )
       
   200         {
       
   201         delete iMsvSession;
       
   202         iMsvSession = NULL;
       
   203         }
       
   204     }
       
   205 
       
   206 // ---------------------------------------------------------------------------
       
   207 // 
       
   208 // ---------------------------------------------------------------------------
       
   209 //
       
   210 TMCSData& CMCSPluginEngine::MenuDataL( const TInt& aIndex )
       
   211     {
       
   212     return iPluginData->DataItemL( aIndex );
       
   213     }
       
   214 
       
   215 // ---------------------------------------------------------------------------
       
   216 // 
       
   217 // ---------------------------------------------------------------------------
       
   218 //
       
   219 TInt CMCSPluginEngine::MenuItemCount()
       
   220     {
       
   221     return iPluginData->DataCount();
       
   222     }
       
   223 
       
   224 // ---------------------------------------------------------------------------
       
   225 // Returns the menu item header, which matches the given filter.
       
   226 // ---------------------------------------------------------------------------
       
   227 //
       
   228 TMenuItem CMCSPluginEngine::FindMenuItemL( CMenuFilter& aFilter )
       
   229     {    
       
   230     TMenuItem item;
       
   231     const TInt root = iMenu.RootFolderL();
       
   232     RArray<TMenuItem> items;
       
   233     CleanupClosePushL( items );
       
   234     iMenu.GetItemsL( items, root, &aFilter, ETrue );
       
   235     if( items.Count() > 0 )
       
   236         {
       
   237 
       
   238         item = items[0];
       
   239         }
       
   240 
       
   241     CleanupStack::PopAndDestroy( &items );
       
   242     return item;
       
   243     }
       
   244 
       
   245 // ---------------------------------------------------------------------------
       
   246 // Returns the actual menu item for the given header.
       
   247 // ---------------------------------------------------------------------------
       
   248 //
       
   249 CMenuItem* CMCSPluginEngine::FetchMenuItemL( const TMenuItem& aMenuItem )
       
   250     {
       
   251     return CMenuItem::OpenL( iMenu, aMenuItem );
       
   252     }
       
   253 
       
   254 // ---------------------------------------------------------------------------
       
   255 // Returns MCS default icon if attribute is 'icon' else parses the
       
   256 // skin definition from attribute and sets attributes to aMenuItem.
       
   257 // ---------------------------------------------------------------------------
       
   258 //
       
   259 CGulIcon* CMCSPluginEngine::ItemIconL( CMenuItem& aMenuItem, const TDesC& aAttr )
       
   260     {
       
   261     CAknIcon* icon( NULL );
       
   262     CGulIcon* gIcon( NULL );
       
   263     TBool exists( ETrue );
       
   264     if( aAttr != KIcon )
       
   265         {
       
   266         // Resolve secondary icon definition from attribute
       
   267         TPtrC iconDef = aMenuItem.GetAttributeL( aAttr, exists );
       
   268         if( exists )
       
   269             {
       
   270             exists = ConstructMenuItemForIconL( iconDef, aMenuItem );
       
   271             }
       
   272         }
       
   273     if( exists )
       
   274         {
       
   275         icon = MenuIconUtility::GetItemIconL( aMenuItem );
       
   276         if( icon )
       
   277             {
       
   278             CleanupStack::PushL( icon );
       
   279             gIcon = CGulIcon::NewL(icon->Bitmap(), icon->Mask());
       
   280             // Detach and delete
       
   281             icon->SetBitmap( NULL );
       
   282             icon->SetMask( NULL );    
       
   283             CleanupStack::PopAndDestroy( icon );
       
   284             }
       
   285         }
       
   286     return gIcon;
       
   287     }
       
   288 
       
   289 // ---------------------------------------------------------------------------
       
   290 // Returns text string for the given attribute
       
   291 // ---------------------------------------------------------------------------
       
   292 //
       
   293 TPtrC CMCSPluginEngine::ItemTextL( CMenuItem& aMenuItem, const TDesC& aAttr  )
       
   294     {    
       
   295     TBool exists( KErrNotFound );
       
   296     TPtrC name = aMenuItem.GetAttributeL( aAttr, exists );
       
   297     if( exists )
       
   298         {
       
   299         return name;
       
   300         }
       
   301     else
       
   302         {
       
   303         return KNullDesC();
       
   304         }
       
   305     }
       
   306 
       
   307 // ---------------------------------------------------------------------------
       
   308 // Calls the open command for the given menu item header
       
   309 // ---------------------------------------------------------------------------
       
   310 //
       
   311 void CMCSPluginEngine::LaunchItemL( const TInt& aIndex )
       
   312     {
       
   313 
       
   314     if ( iSuspend )
       
   315         {
       
   316         HBufC* temp = StringLoader::LoadLC( R_MCS_DISABLE_OPEN_ITEM );
       
   317 
       
   318         CAknNoteDialog* dialog = new (ELeave) CAknNoteDialog(
       
   319             CAknNoteDialog::EConfirmationTone,
       
   320             CAknNoteDialog::ENoTimeout );
       
   321         dialog->SetTextL( temp->Des() );
       
   322         dialog->ExecuteDlgLD( R_MCS_DISABLE_OPEN_ITEM_DLG );
       
   323         CleanupStack::PopAndDestroy( temp );
       
   324         return;
       
   325         }
       
   326     if( iWatcher->IsActive())
       
   327         {
       
   328         return;
       
   329         }
       
   330 
       
   331 
       
   332     TMCSData& dataItem = iPluginData->DataItemL( aIndex );
       
   333     CMenuItem* item = CMenuItem::OpenL( iMenu, dataItem.MenuItem());
       
   334     CleanupStack::PushL( item );
       
   335     TPtrC type = item->Type();
       
   336 
       
   337     // run suite/folder
       
   338     if ( type == KMenuTypeSuite || type == KMenuTypeFolder )
       
   339         {
       
   340 
       
   341         // message for MM application
       
   342         HBufC8* message; 
       
   343 
       
   344         if ( type == KMenuTypeSuite )
       
   345             {
       
   346             // prepare message for launching suite
       
   347             TBool hasSuiteName = EFalse;
       
   348             TPtrC suiteName = item->GetAttributeL( KSuiteName, hasSuiteName );
       
   349             if ( !hasSuiteName )
       
   350                 { 
       
   351                 CleanupStack::PopAndDestroy( item );
       
   352                 return;
       
   353                 }
       
   354             message = HBufC8::NewLC( KMMApplication().Length() + 
       
   355                                      suiteName.Length() + 
       
   356                                      KHideExit().Length() );
       
   357 
       
   358             message->Des().Copy( KMMApplication );
       
   359             message->Des().Append( suiteName );
       
   360             message->Des().Append( KHideExit );
       
   361             }
       
   362         else 
       
   363             {
       
   364             // prepare message for launching folder
       
   365             TBool hasApplicationGroupName = EFalse;
       
   366             TPtrC applicationGroupName = item->GetAttributeL( KApplicationGroupName, 
       
   367                                                               hasApplicationGroupName );
       
   368             if ( !hasApplicationGroupName )
       
   369                 {
       
   370                 CleanupStack::PopAndDestroy( item );
       
   371                 return;
       
   372                 }
       
   373             message = HBufC8::NewLC( KMMApplication().Length() + 
       
   374                                      KSetFocusString().Length() +
       
   375                                      applicationGroupName.Length() + 
       
   376                                      KHideExit2().Length() );
       
   377 
       
   378             message->Des().Copy( KMMApplication );
       
   379             message->Des().Append( KSetFocusString );
       
   380             message->Des().Append( applicationGroupName );
       
   381             message->Des().Append( KHideExit2 );
       
   382             }
       
   383 
       
   384         // find MM application
       
   385         TApaTaskList taskList( CCoeEnv::Static()->WsSession() );
       
   386         TApaTask task = taskList.FindApp( KMMUid );
       
   387 
       
   388         if ( task.Exists() )
       
   389             {
       
   390             // MM is already running in background - send APA Message
       
   391             task.SendMessage( TUid::Uid( KUidApaMessageSwitchOpenFileValue ), *message );
       
   392             }
       
   393         else
       
   394             { 
       
   395             // MM not running yet - use Command Line Tail
       
   396             RApaLsSession appArcSession;
       
   397             CleanupClosePushL( appArcSession );
       
   398             User::LeaveIfError( appArcSession.Connect() );
       
   399             TApaAppInfo appInfo;
       
   400             TInt err = appArcSession.GetAppInfo( appInfo, KMMUid );
       
   401             if ( err == KErrNone )
       
   402                 {
       
   403                 CApaCommandLine* cmdLine = CApaCommandLine::NewLC();
       
   404                 cmdLine->SetExecutableNameL( appInfo.iFullName );
       
   405                 cmdLine->SetCommandL( EApaCommandRun );
       
   406                 cmdLine->SetTailEndL( *message );
       
   407                 appArcSession.StartApp( *cmdLine );
       
   408                 CleanupStack::PopAndDestroy( cmdLine );
       
   409                 }
       
   410             CleanupStack::PopAndDestroy( &appArcSession ); 
       
   411             }
       
   412         CleanupStack::PopAndDestroy( message );
       
   413         }
       
   414     else
       
   415         {
       
   416         TBool exists( EFalse );
       
   417         TPtrC desc( item->GetAttributeL( KMenuAttrUid, exists ) );
       
   418         
       
   419         if( exists )
       
   420             {      
       
   421             _LIT( KPrefix, "0x" );
       
   422             const TInt pos( desc.FindF( KPrefix ) );
       
   423             
       
   424             if( pos != KErrNotFound )
       
   425                 {
       
   426                 TLex lex( desc.Mid( pos + KPrefix().Length() ) );
       
   427                 // Hex parsing needs unsigned int
       
   428                 TUint32 value = 0;
       
   429                 const TInt parseResult = lex.Val( value, EHex );
       
   430                 
       
   431                 if ( parseResult == KErrNone )
       
   432                     {
       
   433                     TUid uid( KNullUid );  
       
   434                     TInt32 value32( value );
       
   435                     uid.iUid = value32;   
       
   436                     
       
   437                     if( uid != KNullUid )
       
   438                         {
       
   439                         //start a full screen effect
       
   440                         GfxTransEffect::BeginFullScreen( 
       
   441                         AknTransEffect::EApplicationStart,
       
   442                         TRect(0,0,0,0), 
       
   443                         AknTransEffect::EParameterType, 
       
   444                         AknTransEffect::GfxTransParam( uid,
       
   445                         AknTransEffect::TParameter::EActivateExplicitContinue ));
       
   446                         }
       
   447                     }
       
   448                 }
       
   449             }
       
   450 
       
   451         // run application/shortcut/bookmark
       
   452         CMenuOperation* operation = item->HandleCommandL(
       
   453             KMenuCmdOpen, KNullDesC8, iWatcher->iStatus );
       
   454         iWatcher->Watch( operation );  
       
   455         }
       
   456     CleanupStack::PopAndDestroy( item );
       
   457     }
       
   458 
       
   459 // ---------------------------------------------------------------------------
       
   460 // Handle the change in Menu Content
       
   461 // ---------------------------------------------------------------------------
       
   462 //
       
   463 void CMCSPluginEngine::HandleNotifyL()
       
   464     {
       
   465     TInt count( iPluginData->DataCount());
       
   466     for( TInt i = 0; i < count; i++ )
       
   467         {
       
   468         TMCSData& data = iPluginData->DataItemL(i);
       
   469         // Check that all the data still exist is MCS, if flag is hidden or
       
   470         // missing, we have to remove data from UI
       
   471         CMenuItem* menuItem = CMenuItem::OpenL( iMenu, data.MenuItem().Id() );
       
   472         CleanupStack::PushL( menuItem );
       
   473         if ( !menuItem || 
       
   474              ( menuItem->Flags() & TMenuItem::EHidden ) ||
       
   475              ( menuItem->Flags() & TMenuItem::EMissing ) )
       
   476             {
       
   477             // Get the replacement for hidden data
       
   478             CMenuFilter* filter = CMenuFilter::NewL();
       
   479             CleanupStack::PushL( filter );
       
   480             // 'Undefined' item
       
   481             filter->HaveAttributeL( KMenuAttrUid, KMenuAttrUndefUid );
       
   482             TMenuItem undefItem = FindMenuItemL( *filter );
       
   483             iPluginData->ReplaceMenuItemL( i, undefItem );
       
   484             iPluginData->SaveSettingsL( i, *FetchMenuItemL(undefItem) );
       
   485             CleanupStack::PopAndDestroy( filter );
       
   486             }
       
   487         CleanupStack::PopAndDestroy( menuItem );
       
   488         menuItem = NULL;
       
   489         }
       
   490     // Notification must be activated again
       
   491     iNotifyWatcher->Cancel();
       
   492     iNotifier.Notify( 0,
       
   493                 RMenuNotifier::EItemsAddedRemoved |
       
   494                 RMenuNotifier::EItemsReordered |
       
   495                 RMenuNotifier::EItemAttributeChanged,
       
   496                 iNotifyWatcher->iStatus );
       
   497 
       
   498     iNotifyWatcher->WatchNotify( this );
       
   499     // Publish changed data
       
   500     iPlugin.PublishL();
       
   501     }
       
   502 
       
   503 // ---------------------------------------------------------------------------
       
   504 // From class MMsvSessionObserver.
       
   505 // Handles an event from the message server.
       
   506 // ---------------------------------------------------------------------------
       
   507 //
       
   508 void CMCSPluginEngine::HandleSessionEventL(
       
   509     TMsvSessionEvent aEvent, TAny* /*aArg1*/, TAny* /*aArg2*/, TAny* /*aArg3*/)
       
   510     {
       
   511     switch ( aEvent )
       
   512         {
       
   513     case EMsvEntriesDeleted:
       
   514         // fall-through intended here
       
   515     case EMsvEntriesChanged:
       
   516         {
       
   517 
       
   518         }
       
   519         break;
       
   520     default:
       
   521         break;
       
   522         }
       
   523     }
       
   524 
       
   525 // -----------------------------------------------------------------------------
       
   526 // From class MFavouritesDbObserver.
       
   527 // Handles database event.
       
   528 // -----------------------------------------------------------------------------
       
   529 //
       
   530 void CMCSPluginEngine::HandleFavouritesDbEventL( RDbNotifier::TEvent aEvent )
       
   531     {
       
   532     switch ( aEvent )
       
   533         {
       
   534         case RDbNotifier::ERollback:
       
   535             // fall-through intended here
       
   536         case RDbNotifier::ERecover:
       
   537             // fall-through intended here
       
   538         case RDbNotifier::ECommit:
       
   539             {
       
   540             // Get list of favourites bookmarks
       
   541             CFavouritesItemList* favItems =
       
   542                     new (ELeave) CFavouritesItemList();
       
   543             CleanupStack::PushL( favItems );
       
   544             TInt err = iBookmarkDb.GetAll( *favItems, KFavouritesNullUid,
       
   545                     CFavouritesItem::EItem );
       
   546             if ( err != KErrNone )
       
   547                 {
       
   548                 ASSERT(0);
       
   549                 }
       
   550             TInt count_fav = favItems->Count();
       
   551 
       
   552             // Do for each plugin data (4x times)
       
   553             TInt count_data( iPluginData->DataCount() );
       
   554             for ( TInt item_index = 0; item_index < count_data; item_index++ )
       
   555                 {
       
   556                 // Get item ID and open its menu related item
       
   557                 TMCSData& data = iPluginData->DataItemL( item_index );
       
   558                 TInt itemID( data.MenuItem().Id() );
       
   559                 CMenuItem* menuItem = CMenuItem::OpenL( iMenu, itemID );
       
   560                 CleanupStack::PushL( menuItem );
       
   561 
       
   562                 // Get URL aatribute
       
   563                 TBool attrExists = EFalse;
       
   564                 TPtrC url = menuItem->GetAttributeL( _L("url"), attrExists );
       
   565                 // If bookmark...
       
   566                 if ( attrExists )
       
   567                     {
       
   568                     // Get bookmark UID
       
   569                     TPtrC uid_item_ptr = menuItem->GetAttributeL(
       
   570                             KMenuAttrUid, attrExists );
       
   571 
       
   572                     // Compare with each item in fav. bookmarks list
       
   573                     TBool itemExists = EFalse;
       
   574                     for ( TInt fav_index = count_fav - 1; fav_index >= 0; fav_index-- ) // newest on top
       
   575                         {
       
   576                         // Get list item UID 
       
   577                         TUid uid_fav = TUid::Uid( favItems->At( fav_index )->Uid() );
       
   578                         if ( uid_fav.Name() == uid_item_ptr )
       
   579                             {
       
   580                             // Bookmark still exist in fav. bookmarks list
       
   581                             itemExists = ETrue;
       
   582                             break;
       
   583                             }
       
   584                         }
       
   585 
       
   586                     if ( !itemExists )
       
   587                         {
       
   588                         // If item not axist any more, replace it by undefined icon
       
   589                         CMenuFilter* filter = CMenuFilter::NewL();
       
   590                         CleanupStack::PushL( filter );
       
   591                         // 'Undefined' item
       
   592                         filter->HaveAttributeL( KMenuAttrUid,
       
   593                                 KMenuAttrUndefUid );
       
   594                         TMenuItem undefItem = FindMenuItemL( *filter );
       
   595                         iPluginData->ReplaceMenuItemL( item_index, undefItem );
       
   596                         iPluginData->SaveSettingsL( item_index, *FetchMenuItemL(
       
   597                                 undefItem ) );
       
   598                         CleanupStack::PopAndDestroy( filter );
       
   599                         }
       
   600                     }
       
   601                 CleanupStack::PopAndDestroy( menuItem );
       
   602                 }
       
   603             CleanupStack::PopAndDestroy( favItems );
       
   604             }
       
   605             break;
       
   606         default:
       
   607             break;
       
   608         }
       
   609     }
       
   610 
       
   611 // ---------------------------------------------------------------------------
       
   612 // Resumes the engine
       
   613 // ---------------------------------------------------------------------------
       
   614 //
       
   615 void CMCSPluginEngine::ResumeL()
       
   616     {
       
   617     iSuspend = EFalse;
       
   618     }
       
   619 
       
   620 // ---------------------------------------------------------------------------
       
   621 // Suspends the engine
       
   622 // ---------------------------------------------------------------------------
       
   623 //
       
   624 void CMCSPluginEngine::Suspend()
       
   625     {
       
   626     iSuspend = ETrue;
       
   627     }
       
   628 
       
   629 // ---------------------------------------------------------------------------
       
   630 // Launch General Settings plugin
       
   631 // ---------------------------------------------------------------------------
       
   632 //
       
   633 void CMCSPluginEngine::ShowSettingsL()
       
   634     { 
       
   635     TUid uid = {AI_UID_ECOM_IMPLEMENTATION_SETTINGS_MCSPLUGIN};
       
   636     CGSLauncher* l = CGSLauncher::NewLC();
       
   637     l->LaunchGSViewL ( uid,
       
   638                        KHomescreenUid,
       
   639                        iInstanceUid );            
       
   640     CleanupStack::PopAndDestroy( l );
       
   641 
       
   642     }
       
   643 // ---------------------------------------------------------------------------
       
   644 // ResolveSkinItemId
       
   645 // Syntax: skin(major minor):mif(filename bimapId maskId)
       
   646 // ---------------------------------------------------------------------------
       
   647 //
       
   648 TBool CMCSPluginEngine::ConstructMenuItemForIconL( const TDesC& aPath, CMenuItem& aMenuItem )
       
   649    {
       
   650    TInt pos = aPath.Locate( ':' );
       
   651    if( pos == KErrNotFound )
       
   652        {
       
   653        pos = aPath.Length();
       
   654        }
       
   655    TPtrC skin = aPath.Left( pos );
       
   656    TInt sf = skin.FindF( KSkin );
       
   657    if( sf == KErrNotFound )
       
   658        {
       
   659        return EFalse;
       
   660        }
       
   661    TPtrC temp = skin.Mid( sf + KSkin().Length());
       
   662    TLex input( temp );
       
   663    input.SkipSpace();
       
   664    if( !input.Eos() && input.Peek() == '(')
       
   665        {
       
   666        input.Inc();
       
   667        }
       
   668    TPtrC majorId = NextIdToken( input );
       
   669    TPtrC minorId = NextIdToken( input );
       
   670    aMenuItem.SetAttributeL( KMenuAttrIconSkinMajorId, majorId );
       
   671    aMenuItem.SetAttributeL( KMenuAttrIconSkinMinorId, minorId );
       
   672       
       
   673    //TPtrC mif = aPath.Mid( pos + 1 );
       
   674    //TInt mf = mif.FindF( KMif );
       
   675    if( aPath.Length() > pos && (aPath.Mid( pos + 1 ).FindF( KMif ) != KErrNotFound ))
       
   676        {
       
   677        TPtrC mif = aPath.Mid( pos + 1 );
       
   678        TInt mf = mif.FindF( KMif );
       
   679        //TPtrC temp1 = mif.Mid( mf+ KMif().Length());
       
   680        TLex input1( mif.Mid( mf+ KMif().Length()) );
       
   681        input1.SkipSpace();
       
   682        if( !input1.Eos() && input1.Peek() == '(')
       
   683           {
       
   684           input1.Inc();
       
   685           }
       
   686        TPtrC file = NextIdToken( input1 );
       
   687        TPtrC bitmapId = NextIdToken( input1 );
       
   688        TPtrC maskId = NextIdToken( input1 );
       
   689        aMenuItem.SetAttributeL( KMenuAttrIconFile, file );
       
   690        aMenuItem.SetAttributeL( KMenuAttrIconId, bitmapId );
       
   691        aMenuItem.SetAttributeL( KMenuAttrMaskId, maskId );
       
   692        }
       
   693    return ETrue;
       
   694    }
       
   695 
       
   696 // ---------------------------------------------------------------------------
       
   697 // Called during plugin desctruction
       
   698 // Decrements reference counters of all run-time generated items
       
   699 // and deletes those which have reference counter == 0
       
   700 // ---------------------------------------------------------------------------
       
   701 //
       
   702 void CMCSPluginEngine::CleanMCSItemsL()
       
   703     {
       
   704     const TInt count( iPluginData->DataCount() );
       
   705     for( TInt i = 0; i < count; i++ )
       
   706         {
       
   707         TMCSData& data = iPluginData->DataItemL(i);
       
   708         
       
   709         CMenuItem* menuItem = CMenuItem::OpenL( iMenu, data.MenuItem().Id() );        
       
   710         if( !menuItem )
       
   711             {
       
   712             continue;
       
   713             }        
       
   714         CleanupStack::PushL( menuItem );
       
   715         
       
   716         // check if ref_count attribute exists
       
   717         TBool exists = EFalse;
       
   718         TPtrC param = menuItem->GetAttributeL( KMenuAttrRefcount, exists );
       
   719         if( exists )
       
   720             {                
       
   721             const TInt references = UpdateMenuItemsRefCountL( menuItem, -1 );
       
   722             
       
   723             // Create a nested loop inside CActiveScheduler.
       
   724             CActiveSchedulerWait* wait = new (ELeave) CActiveSchedulerWait;
       
   725             CleanupStack::PushL( wait );
       
   726             
       
   727             if( references > 0 )
       
   728                 {
       
   729                 // if counter is still > 0, update its value in MCS 
       
   730                 CMenuOperation* op = menuItem->SaveL( iWatcher->iStatus );
       
   731                 iWatcher->StopAndWatch( op, wait );
       
   732                 
       
   733                 // Start the nested scheduler loop.
       
   734                 wait->Start();
       
   735                 }
       
   736             else
       
   737                 {                     
       
   738                  // counter reached 0 -> item is not referenced by any shortcut
       
   739                  // so remove it from MCS
       
   740                  if( !iWatcher->IsActive() )
       
   741                      {
       
   742                      CMenuOperation* op = iMenu.RemoveL( menuItem->Id(), iWatcher->iStatus );
       
   743                      iWatcher->StopAndWatch( op, wait );
       
   744                      
       
   745                       // Start the nested scheduler loop.
       
   746                      wait->Start();
       
   747                      }
       
   748                 }
       
   749             
       
   750             CleanupStack::PopAndDestroy( wait );
       
   751             wait = NULL;
       
   752             }
       
   753         
       
   754         CleanupStack::PopAndDestroy( menuItem );
       
   755         menuItem = NULL;
       
   756         }
       
   757     }
       
   758 
       
   759 
       
   760 // ---------------------------------------------------------------------------
       
   761 // Helper method. Adds a given constant to a value of reference counter  
       
   762 // ---------------------------------------------------------------------------
       
   763 //
       
   764 TInt CMCSPluginEngine::UpdateMenuItemsRefCountL( CMenuItem* aItem, 
       
   765                                                  const TInt aValueToAdd )
       
   766     {
       
   767     TBool exists = EFalse;
       
   768     CleanupStack::PushL( aItem ); 
       
   769     TPtrC param = aItem->GetAttributeL( KMenuAttrRefcount, exists );
       
   770     CleanupStack::Pop( aItem );
       
   771     if ( exists )
       
   772         {
       
   773         TInt references;
       
   774         TLex16 lextmp( param );
       
   775         lextmp.Val( references );
       
   776         references += aValueToAdd;
       
   777         TBuf<128> buf;
       
   778         buf.NumUC( references );
       
   779 
       
   780         // set new ref_count
       
   781         CleanupStack::PushL( aItem ); 
       
   782         aItem->SetAttributeL( KMenuAttrRefcount, buf);
       
   783         CleanupStack::Pop( aItem );
       
   784         // return new ref_count
       
   785         return references;
       
   786         }
       
   787     return -1;
       
   788     }