/*

* Copyright (c) 2005-2008 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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:  A view to browse a feed's topics.

*

*/

#include <aknviewappui.h>

#include <aknutils.h>

#include <AknToolbar.h>

#include <eikbtgpc.h>

#include <eikmenup.h>

#include <hlplch.h>

#include "Browser.hrh"

#include <BrowserNG.rsg>

#include "BrowserAppUi.h"

#include "CommonConstants.h"

#include "FeedsTopicView.h"

#include "FeedsTopicContainer.h"

// -----------------------------------------------------------------------------

// CFeedsTopicView::NewL

//

// Two-phased constructor.

// -----------------------------------------------------------------------------

//

CFeedsTopicView* CFeedsTopicView::NewL(	MApiProvider& aApiProvider,	TRect& aRect )

	{

    CFeedsTopicView* self = new (ELeave) CFeedsTopicView(aApiProvider);

    CleanupStack::PushL(self);

    self->ConstructL(aRect);

    CleanupStack::Pop();

    return self;

	}

// -----------------------------------------------------------------------------

// CFeedsTopicView::CFeedsTopicView

//

// C++ default constructor.

// -----------------------------------------------------------------------------

//

CFeedsTopicView::CFeedsTopicView(MApiProvider& aApiProvider):

	 CBrowserViewBase( aApiProvider ),iPenEnabled(EFalse)

	{

    iPenEnabled = AknLayoutUtils::PenEnabled();

	}

// -----------------------------------------------------------------------------

// CFeedsTopicView::ConstructL

//

// Symbian 2nd phase constructor can leave.

// -----------------------------------------------------------------------------

//

void CFeedsTopicView::ConstructL(TRect& aRect)

    {

    BaseConstructL(R_FEEDS_TOPIC_VIEW);

    iContainer = CFeedsTopicContainer::NewL( this, ApiProvider(), aRect );

    iContainer->MakeVisible(EFalse);

    if(iPenEnabled)

        {

        Toolbar()->SetToolbarObserver(this);;        

        }

    }

// -----------------------------------------------------------------------------

// CFeedsTopicView::~CFeedsTopicView

//

// Deconstructor.

// -----------------------------------------------------------------------------

//

CFeedsTopicView::~CFeedsTopicView()

    {

    DoDeactivate();

    delete iContainer;

    }

// -----------------------------------------------------------------------------

// CFeedsTopicView::Id

//

// Returns the id of the view.

// -----------------------------------------------------------------------------

//

TUid CFeedsTopicView::Id() const

    {

    return KUidBrowserFeedsTopicViewId;

    }

// -----------------------------------------------------------------------------

// CFeedsTopicView::HandleCommandL

//

// Processes commands.

// -----------------------------------------------------------------------------

//

void CFeedsTopicView::HandleCommandL(TInt aCommand)

    {   

    TBool  handled = EFalse;

    // Handle softkeys and other Symbian commands first.

    switch (aCommand)

        {

		case EAknSoftkeyBack:

		    iApiProvider.FeedsClientUtilities().ShowFolderViewLocalL();

            handled = ETrue;

            break;

#ifdef __SERIES60_HELP

        case EAknCmdHelp:

            {

            iApiProvider.SetLastActiveViewId(Id());

            HlpLauncher::LaunchHelpApplicationL(iEikonEnv->WsSession(), 

                    AppUi()->AppHelpContextL());

            handled = ETrue;

            break;

            }

#endif //__SERIES60_HELP 

        }

    if (handled)

        {

        return;

        }

    // Handle menu commands.

    switch (aCommand)

        {

		case EFeedsOpen:

    		if ((iApiProvider.FeedsClientUtilities().CurrentFeed()->GetChildren().Count()) > 0)

        		{

                iContainer->HandleOpenL();     

        		}

            break;

		case EFeedsUpdate:

		    iContainer->HandleUpdateFeedL();

            break;

		case EFeedsBackToPage:

            iApiProvider.FeedsClientUtilities().HandleCommandL(Id(), EWmlCmdBackToPage );

			break;

        default:

            iApiProvider.FeedsClientUtilities().HandleCommandL(Id(),aCommand);

            break;

        }

    }

// -----------------------------------------------------------------------------

// CFeedsTopicView::DoActivateL

//

// Called when the view is activated.

// -----------------------------------------------------------------------------

//

void CFeedsTopicView::DoActivateL(const TVwsViewId& /*aPrevViewId*/, 

        TUid /*aCustomMessageId*/, const TDesC8& /*aCustomMessage*/)

    {

    // If need be, add the container to the control stack.

    if (!iContainerOnStack)

        {

        AppUi()->AddToViewStackL(*this, iContainer);

        iContainer->SetRect(ClientRect());

        iContainer->MakeVisible(ETrue);

        iContainerOnStack = ETrue;

        // resize screen after calling SetRect.  This way looks better

        iContainer->HandleResourceChange(KEikDynamicLayoutVariantSwitch);

        }

    // Set the current feed.

    iContainer->SetCurrentFeedL(*(iApiProvider.FeedsClientUtilities().CurrentFeed()), iInitialItem);

    iApiProvider.SetLastActiveViewId(Id());

    UpdateToolbarButtonsState();

    }

// -----------------------------------------------------------------------------

// CFeedsTopicView::DoDeactivate

//

// Called when the view is deactivated.

// -----------------------------------------------------------------------------

//

void CFeedsTopicView::DoDeactivate()

    {

    if (iContainerOnStack)

        {

        AppUi()->RemoveFromViewStack(*this, iContainer);

        iContainer->MakeVisible(EFalse);

        iContainer->ClearNavigationPane();

        iContainerOnStack = EFalse;

        iInitialItem = iContainer->CurrentIndex();

        }

	}

// -----------------------------------------------------------------------------

// CFeedsTopicView::DynInitMenuPaneL

//

// Disables unrelated menu options.

// -----------------------------------------------------------------------------

//

void CFeedsTopicView::DynInitMenuPaneL(TInt aResourceId, CEikMenuPane* aMenuPane)

    {

    if (aResourceId == R_FEEDS_TOPIC_VIEW_MENU)

        {

        // Refresh (same as update?)

        iApiProvider.FeedsClientUtilities().AddItemL(*aMenuPane, EFeedsUpdate, R_FEEDS_UPDATE);

        // Back to Page (if page loaded)

        if ( iApiProvider.IsPageLoaded() )

            {

            iApiProvider.FeedsClientUtilities().AddItemL( *aMenuPane, EWmlCmdBackToPage, R_BROWSER_MENU_ITEM_BACK_TO_PAGE );

            }

        }      

    iApiProvider.FeedsClientUtilities().DynInitMenuPaneL(aResourceId, aMenuPane );

    }

// -----------------------------------------------------------------------------

// CFeedsTopicView::SetCurrentFeedL

//

// Sets the current feed

// -----------------------------------------------------------------------------

//

void CFeedsTopicView::SetCurrentFeedL(const CFeedsEntity& aFeed, TInt aIndex)

    {

    iContainer->SetCurrentFeedL(aFeed, aIndex);

    }

// -----------------------------------------------------------------------------

// CFeedsTopicView::SetInitialItem

//

// Sets the initial item once the view is activated.

// -----------------------------------------------------------------------------

//

void CFeedsTopicView::SetInitialItem(TInt aItemIndex)

    {

    iInitialItem = aItemIndex;

    }

// -----------------------------------------------------------------------------

// CFeedsTopicView::UpdateToolbarButtonsState

//

// Updates the state of the toolbar buttons depending on the situation

// -----------------------------------------------------------------------------

//

void CFeedsTopicView::UpdateToolbarButtonsState()

    {

    if (iApiProvider.IsPageLoaded())

        {

        Toolbar()->SetItemDimmed(EFeedsBackToPage, EFalse, ETrue);     

        }

    else

        {

        Toolbar()->SetItemDimmed(EFeedsBackToPage, ETrue, ETrue);            

        }

    if ((iApiProvider.FeedsClientUtilities().CurrentFeed()->GetChildren().Count()) > 0)

        {

        Toolbar()->SetItemDimmed(EFeedsOpen, EFalse, ETrue);     

        }

    else

        {

        Toolbar()->SetItemDimmed(EFeedsOpen, ETrue, ETrue);            

        }

    }

// ---------------------------------------------------------------------------

// CFeedsTopicView::CommandSetResourceIdL

// ---------------------------------------------------------------------------

TInt CFeedsTopicView::CommandSetResourceIdL()

    {

    // It is never called, but this function have to be implemented

    return KWmlEmptyResourceId;

    }

// ---------------------------------------------------------

// CFeedsTopicView::HandleClientRectChange

// ---------------------------------------------------------

//

void CFeedsTopicView::HandleClientRectChange()

	{

	if( iContainer )

	    {

        iContainer->SetRect( ClientRect() );

        }

	}