landmarksui/uicontrols/src/TLmkDeletionHelper.cpp
branchRCL_3
changeset 18 870918037e16
parent 0 522cd55cc3d7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/landmarksui/uicontrols/src/TLmkDeletionHelper.cpp	Wed Sep 01 12:31:27 2010 +0100
@@ -0,0 +1,154 @@
+/*
+* Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:    LandmarksUi Content File -
+*
+*/
+
+
+
+
+
+
+
+
+
+// INCLUDE FILES
+#include "TLmkDeletionHelper.h"
+#include <eiklbx.h>
+#include <aknlists.h>
+#include <lmkerrors.h>
+
+
+#if defined(_DEBUG)
+
+// CONSTANTS
+/// Unnamed namespace for local definitions
+namespace {
+_LIT( KPanicMsg, "TLmkDeletionHelper" );
+
+void Panic( TPanicCode aReason )
+    {
+    User::Panic( KPanicMsg, aReason );
+    }
+}  // namespace
+#endif
+
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// -----------------------------------------------------------------------------
+// TLmkDeletionHelper::TLmkDeletionHelper
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// -----------------------------------------------------------------------------
+//
+TLmkDeletionHelper::TLmkDeletionHelper()
+    : iUserRequestedDelete( EFalse ),
+      iCurrentItemIndexBeforeRemoval( -1 ),
+      iCurrentItemWasRemoved( EFalse ),
+      iIndexesToRemovedItems( NULL ),
+      iListBox( NULL )
+    {
+    }
+
+// ----------------------------------------------------
+// TLmkDeletionHelper::~TLmkDeletionHelper
+// ----------------------------------------------------
+//
+TLmkDeletionHelper::~TLmkDeletionHelper()
+    {
+    }
+
+// -----------------------------------------------------------------------------
+// TLmkDeletionHelper::StoreListInformation
+// -----------------------------------------------------------------------------
+//
+void TLmkDeletionHelper::StoreListInformation(
+    CEikListBox& aListBox,
+    TBool aMultipleItems )
+    {
+    iListBox = &aListBox;
+    iUserRequestedDelete = ETrue;
+    /*
+    * After deletion, the focus must go to the first item,
+    * commenting re-assigning the iCurrentItemIndexBeforeRemoval
+    * with zero.
+    */
+	iCurrentItemIndexBeforeRemoval = iListBox->CurrentItemIndex();
+	//iCurrentItemIndexBeforeRemoval = KTopListIndex;
+    if ( aMultipleItems )
+        {
+        iIndexesToRemovedItems = iListBox->SelectionIndexes();
+        // This parameter is not important in this case:
+        iCurrentItemWasRemoved = EFalse;
+        }
+    else
+        {
+        iCurrentItemWasRemoved = ETrue;
+        // This parameter is not important in this case:
+        iIndexesToRemovedItems = NULL;
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// TLmkDeletionHelper::UpdateListIfDeleteHappenedL
+// -----------------------------------------------------------------------------
+//
+TBool TLmkDeletionHelper::UpdateListIfDeleteHappenedL()
+    {
+    // Avkon's utility seems to work nicely even if operation was cancelled
+    // and some items were not deleted.
+
+    if ( iUserRequestedDelete )
+        {
+        if( iIndexesToRemovedItems )
+            {
+            // We need to make a copy of the index array since AknListBoxUtils
+            // requires a non-const parameter:
+            TInt count = iIndexesToRemovedItems->Count();
+            // If index array exists it always contains some items:
+            __ASSERT_DEBUG( count > 0, Panic( KLmkPanicDeletionInfo ) );
+            CArrayFix<TInt>* removedItems =
+                new( ELeave ) CArrayFixFlat<TInt>( count );
+            CleanupStack::PushL( removedItems );
+            for ( TInt i( 0 ); i < count; ++i )
+                {
+                removedItems->AppendL( iIndexesToRemovedItems->At( i ) );
+                }
+
+            AknListBoxUtils::HandleItemRemovalAndPositionHighlightL(
+                                                iListBox,
+                                                iCurrentItemIndexBeforeRemoval,
+                                                *removedItems );
+            CleanupStack::PopAndDestroy( removedItems );
+            }
+        else
+            {
+            AknListBoxUtils::HandleItemRemovalAndPositionHighlightL(
+                                                iListBox,
+                                                iCurrentItemIndexBeforeRemoval,
+                                                iCurrentItemWasRemoved );
+            }
+        // List update now done, set indicator to EFalse:
+        iUserRequestedDelete = EFalse;
+        return ETrue;
+        }
+    else
+        { // Delete hasn't been performed by the user,
+          // i.e. StoreListInformation() hasn't been called
+        return EFalse;
+        }
+    }
+
+//  End of File