author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 14 Sep 2010 20:57:31 +0300 | |
branch | RCL_3 |
changeset 22 | f5c50b8af68c |
parent 0 | 6a9f87576119 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2002-2007 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: Navigable file list model |
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* |
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*/ |
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// INCLUDE FILES |
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#include <bautils.h> |
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#include "CGflmNavigatorModel.h" |
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#include "CGflmItemGroupImpl.h" |
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#include "CGflmItemLocalizer.h" |
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#include "CGflmDriveResolver.h" |
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#include "GFLM.hrh" |
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#include "GflmUtils.h" |
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#include "GFLMConsts.h" |
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// CONSTANTS |
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// Granularity of iBackstepStack array |
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const TInt KBackstepStackGranularity = 3; |
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// ============================ MEMBER FUNCTIONS =============================== |
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// ----------------------------------------------------------------------------- |
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// CGflmNavigatorModel::CGflmNavigatorModel |
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// C++ default constructor can NOT contain any code, that |
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// might leave. |
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// ----------------------------------------------------------------------------- |
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// |
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CGflmNavigatorModel::CGflmNavigatorModel( RFs& aFs ) : |
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CGflmFileListModel( aFs ) |
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{ |
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} |
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// ----------------------------------------------------------------------------- |
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// CGflmNavigatorModel::ConstructL() |
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// Symbian 2nd phase constructor can leave. |
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// ----------------------------------------------------------------------------- |
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// |
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void CGflmNavigatorModel::ConstructL() |
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{ |
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CGflmFileListModel::ConstructL(); |
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iBackstepStack = new( ELeave ) CDesCArraySeg( KBackstepStackGranularity ); |
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} |
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// ----------------------------------------------------------------------------- |
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// CGflmNavigatorModel::NewL() |
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// Two-phased constructor. |
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// ----------------------------------------------------------------------------- |
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// |
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EXPORT_C CGflmNavigatorModel* CGflmNavigatorModel::NewL( RFs& aFs ) |
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{ |
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CGflmNavigatorModel* self = new( ELeave ) CGflmNavigatorModel( aFs ); |
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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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// CGflmNavigatorModel::~CGflmNavigatorModel() |
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// ----------------------------------------------------------------------------- |
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// |
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CGflmNavigatorModel::~CGflmNavigatorModel() |
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{ |
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delete iBackstepStack; |
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} |
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// ----------------------------------------------------------------------------- |
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// CGflmNavigatorModel::GoToDirectoryL() |
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// ----------------------------------------------------------------------------- |
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// |
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EXPORT_C void CGflmNavigatorModel::GoToDirectoryL( |
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const TDesC& aPath, TBool aBackstepping ) |
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{ |
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if ( !aPath.CompareF( CurrentDirectory() ) ) |
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{ |
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return; // Already in the directory |
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} |
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SetBaseDirectoryL( aPath ); |
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// Update the backstepping stack after calling SetBaseDirectoryL() |
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// because it might leave |
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if ( !aBackstepping ) |
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{ |
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iBackstepStack->Reset(); |
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} |
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iBackstepStack->AppendL( aPath ); |
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} |
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// ----------------------------------------------------------------------------- |
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// CGflmNavigatorModel::BackstepL() |
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// (other items were commented in a header). |
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// ----------------------------------------------------------------------------- |
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// |
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EXPORT_C void CGflmNavigatorModel::BackstepL() |
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{ |
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if ( iBackstepStack->MdcaCount() ) |
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{ |
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iBackstepStack->Delete( iBackstepStack->MdcaCount() - 1 ); |
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if ( iBackstepStack->MdcaCount() ) |
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{ |
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TPtrC dir( iBackstepStack->MdcaPoint( |
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iBackstepStack->MdcaCount() - 1 ) ); |
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SetSourceL( dir ); |
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if ( !IsValidSource( dir ) ) |
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{ |
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User::Leave( KErrPathNotFound ); |
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} |
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} |
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else |
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{ |
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SetSourceL( KNullDesC ); |
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} |
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} |
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else |
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{ |
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User::Leave( KErrUnderflow ); |
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} |
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} |
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|
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// ----------------------------------------------------------------------------- |
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// CGflmNavigatorModel::GoToDirectoryL() |
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// (other items were commented in a header). |
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// ----------------------------------------------------------------------------- |
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// |
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EXPORT_C void CGflmNavigatorModel::GoToDirectoryL( const TDesC& aBasePath, |
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const TDesC& aTopPath ) |
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{ |
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// Use copies because descriptors may come from backstep stack itself |
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HBufC* basePathBuffer = aBasePath.AllocLC(); |
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TPtrC basePath( basePathBuffer->Des() ); |
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HBufC* topPathBuffer = aTopPath.AllocLC(); |
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TPtrC topPath( topPathBuffer->Des() ); |
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const TInt KNthMatch = 2; |
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|
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// Clear the backstepping stack |
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iBackstepStack->Reset(); |
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|
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// Construct the backstepping stack |
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|
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while ( basePath.CompareF( topPath ) ) |
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{ |
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iBackstepStack->InsertL( 0, topPath ); |
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|
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// Find the second backslash starting from the end |
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TInt cutPoint( GflmUtils::LocateReverseNth( |
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topPath, KGFLMBackslash()[ 0 ], KNthMatch ) ); |
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User::LeaveIfError( cutPoint ); |
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topPath.Set( topPath.Left( cutPoint + 1 ) ); |
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} |
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|
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// Add basepath too |
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iBackstepStack->InsertL( 0, topPath ); |
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|
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SetBaseDirectoryL( *topPathBuffer ); |
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|
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CleanupStack::PopAndDestroy( topPathBuffer ); |
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CleanupStack::PopAndDestroy( basePathBuffer ); |
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} |
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|
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// ----------------------------------------------------------------------------- |
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// CGflmNavigatorModel::CurrentDirectory() |
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// (other items were commented in a header). |
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// ----------------------------------------------------------------------------- |
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// |
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EXPORT_C TPtrC CGflmNavigatorModel::CurrentDirectory() const |
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{ |
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TInt stackSize( iBackstepStack->MdcaCount() ); |
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if ( stackSize <= 0 ) |
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{ |
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return KNullDesC(); |
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} |
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return iBackstepStack->MdcaPoint( stackSize - 1 ); |
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} |
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|
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// ----------------------------------------------------------------------------- |
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// CGflmNavigatorModel::LocalizedNameOfCurrentDirectory() |
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// (other items were commented in a header). |
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// ----------------------------------------------------------------------------- |
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// |
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EXPORT_C TPtrC CGflmNavigatorModel::LocalizedNameOfCurrentDirectory() const |
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{ |
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TInt stackSize( iBackstepStack->MdcaCount() ); |
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if ( stackSize <= 0 ) |
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{ |
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return TPtrC( KNullDesC ); |
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} |
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TPtrC directory( iBackstepStack->MdcaPoint( stackSize - 1 ) ); |
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TPtrC localizedName( iItemLocalizer->Localize( directory ) ); |
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if ( localizedName.Length() ) |
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{ |
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// Return the localized name |
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return localizedName; |
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} |
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// Directory has no localized name => return the name of the directory |
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TPtrC ptr( GflmUtils::StripFinalBackslash( directory ) ); |
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TInt lastBs( ptr.LocateReverse( KGFLMBackslash()[ 0 ] ) ); |
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if ( lastBs != KErrNotFound ) |
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{ |
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return ptr.Mid( lastBs + 1 ); |
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} |
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return TPtrC( KNullDesC ); |
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} |
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// ----------------------------------------------------------------------------- |
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// CGflmNavigatorModel::SetBaseDirectoryL() |
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// (other items were commented in a header). |
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// ----------------------------------------------------------------------------- |
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// |
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void CGflmNavigatorModel::SetBaseDirectoryL( const TDesC& aDirectory ) |
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{ |
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if ( IsValidSource( aDirectory ) ) |
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{ |
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SetSourceL( aDirectory ); |
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} |
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else |
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{ |
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User::Leave( KErrPathNotFound ); |
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} |
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} |
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|
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// ----------------------------------------------------------------------------- |
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// CGflmNavigatorModel::NavigationLevel() |
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// (other items were commented in a header). |
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// ----------------------------------------------------------------------------- |
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// |
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EXPORT_C TInt CGflmNavigatorModel::NavigationLevel() const |
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{ |
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return iBackstepStack->Count() - 1; |
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} |
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|
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// ----------------------------------------------------------------------------- |
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// CGflmNavigatorModel::CurrentDrive() |
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// (other items were commented in a header). |
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// ----------------------------------------------------------------------------- |
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// |
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EXPORT_C CGflmDriveItem* CGflmNavigatorModel::CurrentDrive() const |
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{ |
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return DriveFromPath( CurrentDirectory() ); |
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} |
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|
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// ----------------------------------------------------------------------------- |
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// CGflmNavigatorModel::SetSourceL() |
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// (other items were commented in a header). |
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// ----------------------------------------------------------------------------- |
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// |
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void CGflmNavigatorModel::SetSourceL( const TDesC& aSource ) |
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{ |
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TBool empty( !aSource.Length() ); |
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TInt groupCount( iGroups->Count() ); |
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for ( TInt i( 0 ); i < groupCount; i++ ) |
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{ |
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MGflmItemGroup* group = iGroups->At( i ); |
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group->ResetSources(); |
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if ( !empty ) |
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{ |
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group->AddSourceL( aSource ); |
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} |
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} |
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} |
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|
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// ----------------------------------------------------------------------------- |
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// CGflmNavigatorModel::IsValidSource() |
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// (other items were commented in a header). |
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// ----------------------------------------------------------------------------- |
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// |
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TBool CGflmNavigatorModel::IsValidSource( const TDesC& aSource ) const |
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{ |
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if ( aSource.Length() && |
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!iDriveResolver->IsRemoteDrive( aSource ) && |
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!BaflUtils::PathExists( iFs, aSource ) && |
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!iDriveResolver->IsRootPath( aSource ) ) |
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{ |
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return EFalse; |
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} |
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return ETrue; |
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} |
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|
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// End of File |