/*

* 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 user's list of feeds.

*

*/

#include <avkon.rsg>

#include <aknviewappui.h>

#include <aknutils.h>

#include <AknToolbar.h>

#include <eikmenup.h>

#include <hlplch.h>

#include <s32mem.h>

#include "Browser.hrh"

#include <BrowserNG.rsg>

#include "BrowserAppUi.h"

#include "CommonConstants.h"

#include <FeedAttributes.h>

#include <FolderAttributes.h>

#include "FeedsFolderContainer.h"

#include "FeedsFolderView.h"

#include "Display.h"

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

// CFeedsFolderView::NewL

//

// Two-phased constructor.

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

//

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

	{

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

    CleanupStack::PushL(self);

    self->ConstructL(aRect);

    CleanupStack::Pop();

    return self;

	}

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

// CFeedsFolderView::CFeedsFolderView

//

// C++ default constructor.

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

//

CFeedsFolderView::CFeedsFolderView(MApiProvider& aApiProvider):

CBrowserViewBase( aApiProvider ),iPenEnabled(EFalse)

	{

    iPenEnabled = AknLayoutUtils::PenEnabled(); 

	}

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

// CFeedsFolderView::ConstructL

//

// Symbian 2nd phase constructor can leave.

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

//

void CFeedsFolderView::ConstructL(TRect& aRect)

    {

    BaseConstructL(R_FEEDS_FOLDER_VIEW);

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

    iContainer->MakeVisible(EFalse);

    if(iPenEnabled)

        {

        Toolbar()->SetToolbarObserver(this);        

        }

    }

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

// CFeedsFolderView::~CFeedsFolderView

//

// Deconstructor.

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

//

CFeedsFolderView::~CFeedsFolderView()

    {

    DoDeactivate();

    delete iContainer;

    }

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

// CFeedsFolderView::Id

//

// Returns the id of the view.

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

//

TUid CFeedsFolderView::Id() const

    {

    return KUidBrowserFeedsFolderViewId;

    }

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

// CFeedsFolderView::HandleCommandL

//

// Processes commands.

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

//

void CFeedsFolderView::HandleCommandL(TInt aCommand)

    {   

    TBool  handled = EFalse;

    // Handle softkeys and some standard commands first.

    switch (aCommand)

        {

		case EAknSoftkeyBack:

            if (!iContainer->HandleShowParentFolderL())

            	{

            	// If we are in embedded mode (perhaps someone imported a feed from the messaging app)

            	// then we want to close the browser vs. returning to the bookmark view

            	if (iApiProvider.IsEmbeddedModeOn())

            		{

					AppUi()->HandleCommandL( EWmlCmdCloseBrowser );

            		}

              	// Go back to content view only if we came from there. Note that ContentView can be 

               	// on the history if another application launched a URL.                 

                else if(((ApiProvider().GetPreviousViewFromViewHistory() == KUidBrowserContentViewId) 

                	&& (ApiProvider().FeedsClientUtilities().CalledFromView() == KUidBrowserContentViewId))

                	||(ApiProvider().GetPreviousViewFromViewHistory() == KUidBrowserFeedsTopicViewId)

                	&& (ApiProvider().FeedsClientUtilities().CalledFromView() != KUidBrowserBookmarksViewId))

                	{

                	 	iApiProvider.SetViewToBeActivatedIfNeededL( KUidBrowserContentViewId );	

                	}

            	else

            		{

                  	iApiProvider.SetViewToBeActivatedIfNeededL( KUidBrowserBookmarksViewId );

            		}

                }

            handled = ETrue;

            break;

        case EAknSoftkeyOk:

            iContainer->HandleOkL();

            handled = ETrue;

            break;

        case EAknSoftkeyCancel:

            iContainer->HandleCancelL();

            handled = ETrue;

            break;

		case EAknCmdMark:    	        

		case EAknCmdUnmark:    	        

		case EAknMarkAll:    	        

		case EAknUnmarkAll:

            iContainer->HandleMarkL(aCommand);

            handled = ETrue;

          	iContainer->UpdateCbaL();

            iContainer->UpdateToolbarButtonsState();

            break;

#ifdef __SERIES60_HELP

        case EAknCmdHelp:

            {

            iApiProvider.SetLastActiveViewId(Id());

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

                    AppUi()->AppHelpContextL());

            handled = ETrue;

            break;

            }

#endif //__SERIES60_HELP 

        case EEikCmdExit:

        case EAknSoftkeyExit:

            AppUi()->HandleCommandL(aCommand);

            handled = ETrue;

            break;

        }

    if (handled)

        {

        return;

        }

    // Handle menu commands.

    switch (aCommand)

        {

        case EFeedsOpen:

        case EFeedsActivate:

            iContainer->HandleSelectionL();

            break;

		case EFeedsUpdate:    

		    iContainer->HandleUpdateFeedL();

            break;

		case EFeedsUpdateAll:

		    iContainer->HandleUpdateFeedL(ETrue);

            break;

		case EFeedsNewFeed: 	        

            iContainer->HandleNewFeedL();

            iContainer->UpdateToolbarButtonsState();

            break;

		case EFeedsNewFolder:    	        

            iContainer->HandleNewFolderL();

            iContainer->UpdateToolbarButtonsState();

            break;

		case EFeedsEdit:

		case EFeedsRename:

            iContainer->HandleEditL();

            iContainer->UpdateToolbarButtonsState();

            break;

		case EFeedsDelete:

            iContainer->HandleDeleteL();

            break;

		case EFeedsMove:    	        

            iContainer->HandleMoveL();

            break;

		case EFeedsMoveToFolder:    	        

            iContainer->HandleMoveToFolderL();

            break;

		case EFeedsExport:

			iContainer->HandleExportL();

			break;

        case EWmlCmdDownloads:            

            ApiProvider().BrCtlInterface().HandleCommandL(

                							(TInt)TBrCtlDefs::ECommandShowDownloads +

                							(TInt)TBrCtlDefs::ECommandIdBase );

            break;

        default:

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

            break;

        }        

    }

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

// CFeedsFolderView::DoActivateL

//

// Called when the view is activated.

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

//

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

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

    {

   	StatusPane()->SwitchLayoutL( R_AVKON_STATUS_PANE_LAYOUT_USUAL );

  	StatusPane()->MakeVisible( ETrue );

	ApiProvider().Display().ClearMessageInfo();

    if (!iContainer)

        {

		iContainer = CFeedsFolderContainer::NewL( this, ApiProvider(), ClientRect() );

        // Set the root folder.

        if (iRootFolder != NULL)

            {

            iContainer->RootFolderChangedL(*iRootFolder);

            }

        }

    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);

        }

	iApiProvider.SetLastActiveViewId(Id());

    iContainer->UpdateTitleL();

    iContainer->UpdateNavigationPaneL();

    iContainer->UpdateListBoxL(iInitialItem);

	iContainer->UpdateCbaL();	

    }

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

// CFeedsFolderView::DoDeactivate

//

// Called when the view is deactivated.

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

//

void CFeedsFolderView::DoDeactivate()

    {

    if (iContainerOnStack)

        {

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

        iContainer->MakeVisible(EFalse);

        iContainer->ClearNavigationPane();

        iContainerOnStack = EFalse;

        iInitialItem = iContainer->CurrentItemIndex();

        }

	}

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

// CFeedsFolderView::DynInitMenuPaneL

//

// Disables unrelated menu options.

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

//

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

    {

    const CFeedsEntity*      item = NULL;

    // Get the current item.

    item = iContainer->CurrentItem();

    // Handle the main menu.

    if (aResourceId == R_FEEDS_FOLDER_VIEW_MENU)

        {

        // Dynamically build the menu.

        // Downloads (only if download menu not empty (ie, ongoing downloads)

        if (ApiProvider().BrCtlInterface().BrowserSettingL( TBrCtlDefs::ESettingsNumOfDownloads ))

            {

            iApiProvider.FeedsClientUtilities().AddItemL( *aMenuPane, EWmlCmdDownloads, R_FEEDS_OPTIONS_GO_DOWNLOADS);

            }

        iApiProvider.FeedsClientUtilities().AddCascadeL(*aMenuPane,EFeedsOptionsGoto,

            R_FEEDS_OPTIONS_GOTO, R_FEEDS_OPTIONS_GOTO_SUBMENU);

        iApiProvider.FeedsClientUtilities().AddCascadeL(*aMenuPane,EFeedsOptionsFeedsActions,

            R_FEEDS_OPTIONS_FEEDSACTIONS, R_FEEDS_OPTIONS_FEEDSACTIONS_SUBMENU);

        iApiProvider.FeedsClientUtilities().AddCascadeL(*aMenuPane,EFeedsOptionsEdit,

            R_FEEDS_OPTIONS_EDIT, R_FEEDS_OPTIONS_EDIT_SUBMENU);

        // these items only visible for non-empty folder

        if (item != NULL)

            {            

            // Mark/Unmark submenu - only for non-empty folder

            iApiProvider.FeedsClientUtilities().AddCascadeL(*aMenuPane,EFeedsOptionsMarkUnmark,

                R_FEEDS_OPTIONS_MARKUNMARK, R_FEEDS_OPTIONS_MARKUNMARK_SUBMENU);

            }

        // ie, privacy submenu

        //iApiProvider.FeedsClientUtilities().AddCascadeL(*aMenuPane,EFeedsOptionsClear,

        //    R_FEEDS_OPTIONS_CLEAR, R_FEEDS_OPTIONS_CLEAR_SUBMENU);

        iApiProvider.FeedsClientUtilities().AddCascadeL(*aMenuPane,EFeedsOptionsClear,

            R_FEEDS_OPTIONS_CLEAR, R_CLEAR_SUBMENU);

        }

     else if(aResourceId == R_FEEDS_OPTIONS_GOTO_SUBMENU)

        {     

        // Back to Page (if page loaded)

        if ( iApiProvider.IsPageLoaded() )

            {

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

            }

        // Bookmarks view (if browser wasn't launched directly into feeds)

        if ( !iApiProvider.BrowserWasLaunchedIntoFeeds() )

		    {

    	    iApiProvider.FeedsClientUtilities().AddItemL( *aMenuPane, EWmlCmdFavourites, R_BROWSER_MENU_ITEM_FAVOURITES );

		    } 

        }

     else if(aResourceId == R_FEEDS_OPTIONS_FEEDSACTIONS_SUBMENU)

        {

        if(iContainer &&

           iContainer->iCurrentFolder &&

           iContainer->iCurrentFolder->GetChildren().Count() > 0)

            {        

            if (!(item->GetType() == EFolder) && !iContainer->IsMarkedItemFolder())

                {

                // Update (only if feed has focus)

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

                }

            // Update All (only for non-empty views/folders)

            if(iContainer->SearchForFeedL(iRootFolder))

                {

                iApiProvider.FeedsClientUtilities().AddItemL(*aMenuPane, EFeedsUpdateAll, R_FEEDS_UPDATE_ALL);    

                }

            // Send (only for non-empty views/folders)

	    	iApiProvider.FeedsClientUtilities().AddItemL(*aMenuPane, EFeedsExport, R_OPTIONS_EXPORT_FEEDS);

            }

        // Import Feeds

		iApiProvider.FeedsClientUtilities().AddItemL(*aMenuPane, EFeedsImport, R_OPTIONS_IMPORT_FEEDS);

        // Create Feed

        iApiProvider.FeedsClientUtilities().AddItemL(*aMenuPane, EFeedsNewFeed, R_FEEDS_NEW_FEED);        

        }

    else if(aResourceId == R_FEEDS_OPTIONS_EDIT_SUBMENU)

        {        

        if (item != NULL)

        	{

        	TInt markedcount = (iContainer && iContainer->MarkedItems()) ? iContainer->MarkedItems()->Count() : 0;

	        // "Edit Feed" or "Rename Folder" depending upon which has focus

	        if (markedcount < 1)// don't allow edit/rename if feed(s)/folder(s) are marked

                {

                if (item->GetType() == EFolder)

    	            {

    	            iApiProvider.FeedsClientUtilities().AddItemL(*aMenuPane, EFeedsRename, R_FLDR_RENAME);

    	            }

    	        else

    	            {

    	            iApiProvider.FeedsClientUtilities().AddItemL(*aMenuPane, EFeedsEdit, R_FEEDS_EDIT);

    	            }

                }

	        // Delete (only if editable item has focus)

	        iApiProvider.FeedsClientUtilities().AddItemL(*aMenuPane, EFeedsDelete, R_FEEDS_DELETE);

	        // move

	        if ( iContainer &&

	             iContainer->iCurrentFolder &&

             iContainer->iCurrentFolder->GetChildren().Count() >= 2 )

	            {

	            iApiProvider.FeedsClientUtilities().AddItemL(*aMenuPane, EFeedsMove, R_OPTIONS_ORG_MOVE);

	            }

	        // move to folder only if a feed has focus and there are folders available

        if (!(item->GetType() == EFolder))

	            {            

                TInt folderCount = 0;

                iContainer->CountFolderFolders(iContainer->iRootFolder, folderCount);

                if(iContainer && (folderCount> 0) && !iContainer->IsMarkedItemFolder())

	                {   

	                iApiProvider.FeedsClientUtilities().AddItemL(*aMenuPane, EFeedsMoveToFolder, R_OPTIONS_ORG_MOVE_TO_FOLDER);

	                }            

	            }

        	}

        // Create Folder

        iApiProvider.FeedsClientUtilities().AddItemL(*aMenuPane, EFeedsNewFolder, R_OPTIONS_ORG_NEW_FOLDER);

        }

    else if( (aResourceId == R_FEEDS_OPTIONS_MARKUNMARK_SUBMENU) || (aResourceId == R_FEEDS_FOLDER_VIEW_MARK_UNMARK_MENU ) )

        {

        // Mark (or unmark)

        if(IsCurrentItemMarked())

            {

            iApiProvider.FeedsClientUtilities().AddItemL(*aMenuPane, EAknCmdUnmark, R_OPTIONS_LIST_UNMARK_ONE);            

            }

        else

            {

            iApiProvider.FeedsClientUtilities().AddItemL(*aMenuPane, EAknCmdMark, R_OPTIONS_LIST_MARK_ONE);  

            }

        // Mark All

        // Unmark ALL

        if (AnyMarkedItems())

            {

            iApiProvider.FeedsClientUtilities().AddItemL(*aMenuPane, EAknUnmarkAll, R_OPTIONS_LIST_UNMARK_ALL);            

            }

        }

    else if(aResourceId == R_FEEDS_OPTIONS_CLEAR_SUBMENU)

        {

        }

    else if(aResourceId == R_FEEDS_FOLDER_MENU_PANE_CONTEXT_MENU) 

            aMenuPane->SetItemDimmed(EFeedsMoveToFolder,ETrue);

            if (!(item->GetType() == EFolder))

                {            

                TInt folderCount = 0;

                iContainer->CountFolderFolders(iContainer->iRootFolder, folderCount);

                if(iContainer && (folderCount> 0) && !iContainer->IsMarkedItemFolder())

                    {   

                    aMenuPane->SetItemDimmed(EFeedsMoveToFolder,EFalse);

                    }            

                }

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

    }

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

// CFeedsFolderView::UpdateCbaL

//

// Updates the options softkey to reflect the command set.

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

//