memspyui/ui/avkon/src/MemSpyContainer.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 14 May 2010 15:53:02 +0300
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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:
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*
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*/
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#include "MemSpyContainer.h"
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// System includes
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#include <eikrted.h>  // for example label control
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#include <txtrich.h>
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#include <apgtask.h>
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// Engine includes
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#include <memspy/engine/memspyengine.h>
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#include <memspy/engine/memspyengineobjectprocess.h>
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#include <memspy/engine/memspyengineobjectthread.h>
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#include <memspy/engine/memspyengineobjectcontainer.h>
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#include <memspy/engine/memspyengineobjectthreadinfoobjects.h>
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#include <memspy/engine/memspyengineobjectthreadinfocontainer.h>
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// User includes
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#include "MemSpyViewMainMenu.h"
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#include "MemSpyContainerObserver.h"
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/*
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CMemSpyContainer::CMemSpyContainer( CMemSpyEngine& aEngine, MMemSpyContainerObserver& aObserver  )
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:   iEngine( aEngine ), iObserver( aObserver )
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    {
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    }
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*/
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CMemSpyContainer::CMemSpyContainer( RMemSpySession& aSession, MMemSpyContainerObserver& aObserver  )
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:   iMemSpySession( aSession ), iObserver( aObserver )
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    {
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    }
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CMemSpyContainer::~CMemSpyContainer()
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    {
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    delete iPreviousView;
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    delete iActiveView;
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    }
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void CMemSpyContainer::ConstructL(const TRect& aRect)
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    {
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    CreateWindowL();
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    SetRect(aRect);
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    PrepareTopLevelViewL();
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    ActivateL();
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    }
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void CMemSpyContainer::NavigateToParentViewL()
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    {
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    CMemSpyViewBase* parentView = iActiveView->PrepareParentViewL();
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    //
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    if  ( parentView == NULL )
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        {
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        // Parent can be null, in which case, revert to top-level view
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        PrepareTopLevelViewL();
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        }
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    else
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        {
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        SetNewActiveViewL( parentView );
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        }
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    }
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void CMemSpyContainer::NavigateToChildViewL()
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    {
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    CMemSpyViewBase* childView = iActiveView->PrepareChildViewL();
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    //
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    if  ( childView != NULL )
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        {
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        SetNewActiveViewL( childView );
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        }
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    }
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void CMemSpyContainer::HandleCommandL( TInt aCommand )
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    {
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    switch( aCommand )
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        {
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	case EMemSpyCmdViewRefresh:
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        OnCmdViewRefreshL();
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        break;
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    default:
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        if  ( iActiveView )
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            {
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            iActiveView->HandleCommandL( aCommand );
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            }
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        break;
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        }
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    }
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void CMemSpyContainer::OnCmdViewRefreshL()
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    {
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    if  ( iActiveView )
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        {
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        TRAPD(err, iActiveView->RefreshL());
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        if  ( err != KErrNone )
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            {
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            // Error during view refreshing (perhaps the thread doesn't exist anymore).
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            // Try to replace the active view with its parent...
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            NavigateToParentViewL();
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            }
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        }
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    }
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void CMemSpyContainer::SizeChanged()
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    {
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    if  ( iActiveView )
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        {
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        iActiveView->SetRect( Rect() );
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        }
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    }
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TInt CMemSpyContainer::CountComponentControls() const
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    {
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    return 1;
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    }
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CCoeControl* CMemSpyContainer::ComponentControl(TInt /*aIndex*/) const
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    {
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    return iActiveView;
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    }
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void CMemSpyContainer::Draw(const TRect& aRect) const
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    {
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    CWindowGc& gc = SystemGc();
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    //
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    gc.SetPenStyle(CGraphicsContext::ENullPen);
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    gc.SetBrushColor(KRgbGray);
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    gc.SetBrushStyle(CGraphicsContext::ESolidBrush);
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    gc.DrawRect(aRect);
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    }
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TKeyResponse CMemSpyContainer::OfferKeyEventL( const TKeyEvent& aKeyEvent, TEventCode aType )
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    {
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    TKeyResponse response = EKeyWasNotConsumed;
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    //
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    if  ( iActiveView )
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        {
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        response = iActiveView->OfferKeyEventL( aKeyEvent, aType );
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        }
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    //
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    return response;
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    }
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void CMemSpyContainer::HandleMemSpyViewEventL( TViewEventType aEvent, TMemSpyViewType /*aViewType*/, CMemSpyViewBase& aReportingView, TAny* /*aContext*/ )
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    {
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    if  ( aEvent == EEventItemActioned )
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        {
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        // Get the view to generate a child
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        CMemSpyViewBase* child = aReportingView.PrepareChildViewL();
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        if  ( child == NULL )
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            {
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            // View doesn't have a child - treat it as item activation and
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            // report event to observer.
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            }
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        else
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            {
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            // Child view becomes the active one
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            SetNewActiveViewL( child );
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            }
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        }
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    }
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CMemSpyViewBase* CMemSpyContainer::PrepareTopLevelViewL()
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    {
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    //CMemSpyViewMainMenu* view = new(ELeave) CMemSpyViewMainMenu( iEngine, *this );
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	CMemSpyViewMainMenu* view = new(ELeave) CMemSpyViewMainMenu( iMemSpySession, *this );
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    CleanupStack::PushL( view );
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    view->ConstructL( Rect(), *this );
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    SetNewActiveViewL( view );
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    CleanupStack::Pop( view );
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    return view;
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    }
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void CMemSpyContainer::SetNewActiveViewL( CMemSpyViewBase* aNewView )
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    {
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    delete iPreviousView;
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    //
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    iPreviousView = iActiveView;
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    if  ( iPreviousView )
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        {
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        iPreviousView->MakeVisible( EFalse );
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        iPreviousView->SetFocus( EFalse );
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        }
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    //
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    iActiveView = aNewView;
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    iActiveView->RefreshL();
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    iActiveView->SetFocus( ETrue );
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    //
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    ReportEventL( MCoeControlObserver::EEventStateChanged );
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   219
    }
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   220
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   227