vtuis/videotelui/src/commands/cvtuicommandpolicymanager.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Mon, 23 Nov 2009 14:47:47 +0200
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/*
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* Copyright (c) 2006 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:  Command policy manager class.
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*
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*/
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#include <cvtlogger.h>
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#include "cvtuicommandpolicymanager.h"
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#include "cvtuicmdcontext.h"
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#include "cvtuicmdvalidatorbase.h"
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#include "cvtuicmdvalidationactionbase.h"
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#include "cvtuicmdcustomvalidationactionbase.h"
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#include "cvtuiprimarycmdpolicy.h"
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#include "cvtuicommandmanager.h"
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// ======== LOCAL FUNCTIONS ========
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// ---------------------------------------------------------------------------
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// Used in InsertInOrder() method to compare two instances of CVtUiCmdContext.
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// ---------------------------------------------------------------------------
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//
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TInt ContextTypeCmpFunc( const CVtUiCmdContext& aV1,
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    const CVtUiCmdContext& aV2 )
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    {
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    return static_cast< TInt >( aV1.ContextType() ) -
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        static_cast< TInt >( aV2.ContextType() );
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    }
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// ---------------------------------------------------------------------------
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// Used in FindInOrder() method to compare instances of CVtUiCmdContext versus
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// given key value.
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// ---------------------------------------------------------------------------
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//
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TInt ContextTypeCmpFuncVsKey( const TVtUiCmdContextType* aKey,
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    const CVtUiCmdContext& aValue )
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    {
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    return static_cast< TInt > ( *aKey ) -
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        static_cast< TInt >( aValue.ContextType() );
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    }
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// ======== MEMBER FUNCTIONS ========
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// ---------------------------------------------------------------------------
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// CVtUiCommandPolicyManager::NewL
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// ---------------------------------------------------------------------------
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//
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CVtUiCommandPolicyManager*
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CVtUiCommandPolicyManager::NewL( const CVtUiCommandManager& aCmdManager )
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    {
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    CVtUiCommandPolicyManager* self =
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        new ( ELeave ) CVtUiCommandPolicyManager( aCmdManager );
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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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// CVtUiCommandPolicyManager::~CVtUiCommandPolicyManager
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// ---------------------------------------------------------------------------
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//
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CVtUiCommandPolicyManager::~CVtUiCommandPolicyManager()
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    {
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    __VTPRINTENTER( "CmdPolicyMgr.~" )
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    iContexts.Reset();
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    iValidators.Reset();
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    delete iPrimaryCommandPolicy;
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    __VTPRINTEXIT( "CmdPolicyMgr.~" )
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    }
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// ---------------------------------------------------------------------------
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// CVtUiCommandPolicyManager::RegisterCommandContext
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// ---------------------------------------------------------------------------
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//
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TInt CVtUiCommandPolicyManager::RegisterCommandContext(
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    CVtUiCmdContext& aContext )
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    {
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    __VTPRINTENTER( "CmdPolicyMgr.RegisterCommandContext" )
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    TLinearOrder< CVtUiCmdContext > cmpFunc( ::ContextTypeCmpFunc );
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    TInt result( KErrNone );
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    TInt index( iContexts.FindInOrder( &aContext, cmpFunc ) );
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    if ( index == KErrNotFound )
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        {
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        TInt error( iContexts.InsertInOrder( &aContext, cmpFunc ) );
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        if ( !error )
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            {
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            CommandContextRegistered( aContext );
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            }
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        result = error;
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        }
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    else
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        {
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        result = KErrAlreadyExists;
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        }
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    __VTPRINTEXITR( "CmdPolicyMgr.RegisterCommandContext %d", result )
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    return result;
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    }
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// ---------------------------------------------------------------------------
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// CVtUiCommandPolicyManager::UnregisterCommandContext
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// ---------------------------------------------------------------------------
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//
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void CVtUiCommandPolicyManager::UnregisterCommandContext(
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    CVtUiCmdContext& aContext )
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    {
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    __VTPRINTENTER( "CmdPolicyMgr.UnregisterCommandContext" )
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    TLinearOrder< CVtUiCmdContext > cmpFunc( ::ContextTypeCmpFunc );
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    TInt index( iContexts.FindInOrder( &aContext, cmpFunc ) );
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    if ( index != KErrNotFound )
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        {
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        iContexts.Remove( index );
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        CommandContextUnregistered( aContext );
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        }
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    __VTPRINTEXIT( "CmdPolicyMgr.UnregisterCommandContext" )
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    }
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// ---------------------------------------------------------------------------
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// CVtUiCommandPolicyManager::AddValidator
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// ---------------------------------------------------------------------------
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//
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TInt CVtUiCommandPolicyManager::AddValidator(
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    CVtUiCmdValidatorBase& aValidator )
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    {
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    __VTPRINTENTER( "CmdPolicyMgr.AddValidator" )
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    TInt error( iValidators.Append( &aValidator ) );
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    if ( !error )
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        {
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        ValidatorAdded( aValidator );
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        }
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    __VTPRINTEXITR( "CmdPolicyMgr.AddValidator %d", error )
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    return error;
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    }
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// ---------------------------------------------------------------------------
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// CVtUiCommandPolicyManager::RemoveValidator
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// ---------------------------------------------------------------------------
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//
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void CVtUiCommandPolicyManager::RemoveValidator(
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    CVtUiCmdValidatorBase& aValidator )
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    {
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    __VTPRINTENTER( "CmdPolicyMgr.RemoveValidator" )
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    TInt index( iValidators.Find( &aValidator ) );
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    if ( index != KErrNotFound )
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        {
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        iValidators.Remove( index );
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        ValidatorRemoved( aValidator );
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        }
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    __VTPRINTEXIT( "CmdPolicyMgr.RemoveValidator" )
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    }
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// ---------------------------------------------------------------------------
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// CVtUiCommandPolicyManager::ValidateMenuItemsL
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// ---------------------------------------------------------------------------
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//
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void CVtUiCommandPolicyManager::ValidateMenuItemsL(
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    CVtUiCmdValidationActionBase& aAction )
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    {
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    __VTPRINTENTER( "CmdPolicyMgr.ValidateMenuItemsL" )
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    ValidateL( EVtUiCmdContextTypeMenu, aAction );
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    __VTPRINTEXIT( "CmdPolicyMgr.ValidateMenuItemsL" )
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    }
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// ---------------------------------------------------------------------------
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// CVtUiCommandPolicyManager::ValidateSoftkeyItemsL
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// ---------------------------------------------------------------------------
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//
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void CVtUiCommandPolicyManager::ValidateSoftkeyItemsL(
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    CVtUiCmdValidationActionBase& aAction )
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    {
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    __VTPRINTENTER( "CmdPolicyMgr.ValidateSoftkeyItemsL" )
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    ValidateL( EVtUiCmdContextTypeSoftkey, aAction );
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    __VTPRINTEXIT( "CmdPolicyMgr.ValidateSoftkeyItemsL" )
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    }
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// ---------------------------------------------------------------------------
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// CVtUiCommandPolicyManager::ValidateToolbarItemsL
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// ---------------------------------------------------------------------------
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//
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void CVtUiCommandPolicyManager::ValidateToolbarItemsL(
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    CVtUiCmdValidationActionBase& aAction )
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    {
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    __VTPRINTENTER( "CmdPolicyMgr.ValidateToolbarItemsL" )
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    ValidateL( EVtUiCmdContextTypeToolbar, aAction );
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    __VTPRINTEXIT( "CmdPolicyMgr.ValidateToolbarItemsL" )
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    }
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// ---------------------------------------------------------------------------
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// CVtUiCommandPolicyManager::CustomValidateL
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// ---------------------------------------------------------------------------
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//
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void CVtUiCommandPolicyManager::CustomValidateL(
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    CVtUiCmdCustomValidationActionBase& aAction )
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    {
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    __VTPRINTENTER( "CmdPolicyMgr.CustomValidateL" )
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    ValidateL( EVtUiCmdContextTypeExecution, aAction );
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    __VTPRINTEXIT( "CmdPolicyMgr.CustomValidateL" )
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    }
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   211
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// ---------------------------------------------------------------------------
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// CVtUiCommandPolicyManager::CVtUiCommandPolicyManager
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// ---------------------------------------------------------------------------
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//
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CVtUiCommandPolicyManager::CVtUiCommandPolicyManager(
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    const CVtUiCommandManager& aCmdManager ) : iCommandManager( aCmdManager )
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    {
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    __VTPRINTENTER( "CmdPolicyMgr.ctor" )
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    __VTPRINTEXIT( "CmdPolicyMgr.ctor" )
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    }
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   222
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// ---------------------------------------------------------------------------
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// CVtUiCommandPolicyManager::ConstructL
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// ---------------------------------------------------------------------------
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//
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void CVtUiCommandPolicyManager::ConstructL()
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    {
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    __VTPRINTENTER( "CmdPolicyMgr.ConstructL" )
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    iPrimaryCommandPolicy =
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        CVtUiPrimaryCmdPolicy::NewL( iCommandManager.UiStates(),
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        iCommandManager.AppUi() );
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    User::LeaveIfError( AddValidator( *iPrimaryCommandPolicy ) );
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    __VTPRINTEXIT( "CmdPolicyMgr.ConstructL" )
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    }
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// ---------------------------------------------------------------------------
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// CVtUiCommandPolicyManager::CommandContextRegistered
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// ---------------------------------------------------------------------------
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//
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void CVtUiCommandPolicyManager::CommandContextRegistered(
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    CVtUiCmdContext& aContext )
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    {
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    __VTPRINTENTER( "CmdPolicyMgr.CommandContextRegistered" )
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    for ( TInt i = iValidators.Count() - 1 ; i >= 0; i-- )
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        {
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        aContext.AddValidator( *iValidators[ i ] );
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        }
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    __VTPRINTEXIT( "CmdPolicyMgr.CommandContextRegistered" )
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    }
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// ---------------------------------------------------------------------------
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// CVtUiCommandPolicyManager::CommandContextUnregistered
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// ---------------------------------------------------------------------------
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//
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void CVtUiCommandPolicyManager::CommandContextUnregistered(
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    CVtUiCmdContext& aContext )
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    {
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    __VTPRINTENTER( "CmdPolicyMgr.CommandContextUnregistered" )
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    for ( TInt i = iValidators.Count() - 1 ; i >= 0; i-- )
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        {
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        aContext.RemoveValidator( *iValidators[ i ] );
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        }
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    __VTPRINTEXIT( "CmdPolicyMgr.CommandContextUnregistered" )
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    }
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// ---------------------------------------------------------------------------
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// CVtUiCommandPolicyManager::ValidatorAdded
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// ---------------------------------------------------------------------------
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//
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void CVtUiCommandPolicyManager::ValidatorAdded(
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    CVtUiCmdValidatorBase& aValidator )
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    {
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    __VTPRINTENTER( "CmdPolicyMgr.ValidatorAdded" )
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    for ( TInt i = iContexts.Count() - 1 ; i >= 0; i-- )
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        {
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        iContexts[ i ]->AddValidator( aValidator );
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        }
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    __VTPRINTEXIT( "CmdPolicyMgr.ValidatorAdded" )
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    }
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// ---------------------------------------------------------------------------
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// CVtUiCommandPolicyManager::ValidatorRemoved
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// ---------------------------------------------------------------------------
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//
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void CVtUiCommandPolicyManager::ValidatorRemoved(
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    CVtUiCmdValidatorBase& aValidator )
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    {
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    __VTPRINTENTER( "CmdPolicyMgr.ValidatorRemoved" )
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    for ( TInt i = iContexts.Count() - 1 ; i >= 0; i-- )
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        {
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        iContexts[ i ]->RemoveValidator( aValidator );
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        }
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    __VTPRINTEXIT( "CmdPolicyMgr.ValidatorRemoved" )
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    }
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// ---------------------------------------------------------------------------
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// CVtUiCommandPolicyManager::FindCommandContextByType
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// ---------------------------------------------------------------------------
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//
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CVtUiCmdContext* CVtUiCommandPolicyManager::FindCommandContextByType(
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        TVtUiCmdContextType aContextType )
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    {
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    __VTPRINTENTER( "CmdPolicyMgr.FindCommandContextByType" )
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    CVtUiCmdContext* result = NULL;
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    TInt index( iContexts.FindInOrder( aContextType,
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        ::ContextTypeCmpFuncVsKey ) );
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    if ( index != KErrNotFound )
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        {
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        result = iContexts[ index ];
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        }
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    __VTPRINTEXIT( "CmdPolicyMgr.FindCommandContextByType" )
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    return result;
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    }
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// ---------------------------------------------------------------------------
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// CVtUiCommandPolicyManager::ValidateL
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// ---------------------------------------------------------------------------
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//
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void CVtUiCommandPolicyManager::ValidateL( TVtUiCmdContextType aContextType,
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    CVtUiCmdValidationActionBase& aAction )
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    {
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    __VTPRINTENTER( "CmdPolicyMgr.ValidateL" )
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    CVtUiCmdContext* context =
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        FindCommandContextByType( aContextType );
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    if ( context )
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        {
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        aAction.BeginProcess();
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        context->ValidateL( aAction );
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        aAction.EndProcess();
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        }
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    __VTPRINTEXIT( "CmdPolicyMgr.ValidateL" )
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    }
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   334