iaupdate/IAD/ui/src/iaupdatedeputils.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 31 Aug 2010 15:21:33 +0300
branchRCL_3
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permissions -rw-r--r--
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/*
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:   This module contains the implementation of IAUpdateDepUtils class 
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*                member functions.
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*
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*/
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// INCLUDES
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#include "iaupdatedeputils.h"
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#include "iaupdatebasenode.h"
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#include "iaupdatenode.h"
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// ---------------------------------------------------------------------------
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// IAUpdateDepUtils::GetDependenciesL
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// 
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// ---------------------------------------------------------------------------
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//
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void IAUpdateDepUtils::GetDependenciesL( const MIAUpdateNode& aNode,
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                                         const RPointerArray<MIAUpdateNode>& aAllNodes,  
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                                         RPointerArray<MIAUpdateNode>& aDependencyNodes ) 
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    {
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    RPointerArray<MIAUpdateNode> dependencies;
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    CleanupClosePushL( dependencies );
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    // Include hidden nodes here. So, we can check the whole hierarchy
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    // of dependencies. Maybe there are some hidden nodes in the middle of the
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    // hierarchy. So, this way we can be sure that visible dependencies after
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    // those hidden nodes are also counted here.
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    // Notice, ownership of the nodes is not transferred here.
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    aNode.GetDependenciesL( dependencies, ETrue );
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    for ( TInt i = 0; i < dependencies.Count(); ++i )
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        {
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        MIAUpdateNode* dependencyNode( dependencies[ i ] );
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        if ( dependencyNode != &aNode ) //skip if dependency is node itself
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            {
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            TInt nodeInd = aAllNodes.Find( dependencyNode );
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            if ( nodeInd >= 0 ) // be sure that dependency is shown in UI
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                {
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                if ( !aAllNodes[ nodeInd ]->Base().IsSelected() )  
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                    { // dependency is umarked 
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                    if ( aDependencyNodes.Find( dependencyNode ) == KErrNotFound )//skip if dependency already in a list
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                        {
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                        aDependencyNodes.AppendL( dependencyNode );
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                        GetDependenciesL( *dependencyNode, aAllNodes, aDependencyNodes );
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                        }
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                    }
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                }
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            else if ( dependencyNode->Base().Hidden() )
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                {
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                // Hidden nodes are not included into the list but
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                // still their dependencies need to be checked.                
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                // Notice, that some nodes in the middle of the 
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                // dependency chain may be hidden. But, some of 
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                // their dependencies may still be visible. So, 
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                // those dependencies should be shown in the UI
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                // in a normal way.
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                GetDependenciesL( *dependencyNode, aAllNodes, aDependencyNodes );
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                }
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            }
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        }
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    CleanupStack::PopAndDestroy( &dependencies );
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    }
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// ---------------------------------------------------------------------------
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// IAUpdateDepUtils::GetDependantsL
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// 
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// ---------------------------------------------------------------------------
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//    
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void IAUpdateDepUtils::GetDependantsL( const MIAUpdateNode& aNode, 
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                                       const RPointerArray<MIAUpdateNode>& aAllNodes,  
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                                       RPointerArray<MIAUpdateNode>& aDependantNodes ) 
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    {
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    RPointerArray<MIAUpdateNode> dependants;
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    CleanupClosePushL( dependants );
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    // Include hidden nodes here. So, we can check the whole hierarchy
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    // of dependants. Maybe there are some hidden nodes in the middle of the
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    // hierarchy. So, this way we can be sure that visible dependants after
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    // those hidden nodes are also counted here.
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    // Notice, ownership of the nodes is not transferred here.
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    aNode.GetDependantsL( dependants, ETrue );
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    for ( TInt i = 0; i < dependants.Count(); ++i )
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        {
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        MIAUpdateNode* dependantNode = dependants[ i ];
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        if ( dependantNode != &aNode ) //skip if dependant is node itself
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            {
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            TInt nodeInd = aAllNodes.Find( dependantNode );
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            if ( nodeInd >= 0 ) // be sure that dependant is shown in UI
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                {
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                if ( aAllNodes[ nodeInd ]->Base().IsSelected() )
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                    { // dependant is marked 
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                    if ( aDependantNodes.Find( dependantNode ) == KErrNotFound )//skip if dependant already in a list
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                        {
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                        aDependantNodes.AppendL( dependantNode );
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                        GetDependantsL( *dependantNode, aAllNodes, aDependantNodes );
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                        }
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                    }
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                }
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            else if ( dependantNode->Base().Hidden() )
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                {
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                // Hidden nodes are not included into the list but
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                // still their dependants need to be checked.                
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                // Notice, that some nodes in the middle of the 
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                // dependant chain may be hidden. But, some of 
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                // their dependants may still be visible. So, 
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                // those dependants should be shown in the UI
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                // in a normal way.
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                GetDependantsL( *dependantNode, aAllNodes, aDependantNodes );
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                }
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            }
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        }
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    CleanupStack::PopAndDestroy( &dependants );
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    }