/*

* Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "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:    Implementation of Single Line metapane for Fulscreen view

*

*/

// Avkon Headers

#include <stringloader.h>                           // String loader

#include <data_caging_path_literals.hrh>            // KDC_APP_RESOURCE_DIR

#include <pathinfo.h>                               // For Path info

#include <driveinfo.h>                              // Added for DriveInfo class

#include <avkon.rsg>                                // Added for R_QTN_DATE_USUAL_WITH_ZERO

#include <akntoolbar.h>

// Alf Headers

#include <alf/alfenv.h>

#include <alf/alfgridlayout.h>

#include <alf/alfanchorlayout.h>

#include <alf/alfcontrolgroup.h>

#include <alf/alfroster.h>

#include <alf/alftexture.h>

#include <alf/alfimage.h>

#include <alf/alfimagevisual.h>

#include <alf/alftextvisual.h>

#include <alf/alflinevisual.h>

#include <alf/alfutil.h>

#include <alf/alfevent.h>

#include <alf/alfbrusharray.h>

#include <alf/alfborderbrush.h>

// Photos Headers

#include <glxtracer.h>                              // Tracer logs

#include <glxlog.h>                                 // Glx logs

#include <mglxmedialist.h>                          // CGlxMedialist

#include <glxustringconverter.h>                    // Converts the symbian types to UString type

#include <glxattributecontext.h>                    // Attribute context

#include <glxuistd.h>                               // Attribute fetch priority

#include <glxuiutility.h>                           // UiUtility Singleton

#include <glxfullscreenviewdata.rsg>                // FS resource

#include <glxicons.mbg>                             // icons

#include <glxtexturemanager.h>                      // Texturemanager

#include <glxcommandhandlers.hrh>                   // Commandhandlers

#include <glxgeneraluiutilities.h>                  // General utilties class definition

#include <glxslmpfavmlobserver.h>

// User Includes

#include <glxsinglelinemetapanecontrol.h>           // User include

// Contants and Literals

const TInt KGlxFullScreenControlGrpId =0x113;       // This is the same control grp id used in FS view

const TInt KGridColoumns = 4;

const TInt KGridRows = 1;

const TReal KOpacityOpaque = 1.0;

const TReal KOpacityTransparent = 0.0;

_LIT(KEmptyText, "");

_LIT(KFormat, " ");

_LIT8(KTagLoc, "Loc");

_LIT8(KTagFav, "Fav");

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

// NewL

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

//  

        MGlxMediaList& aMediaList, CGlxUiUtility& aUiUtility)

    {

            aMediaList, aUiUtility);

    CleanupStack::PushL(self);

    self->ConstructL();

    CleanupStack::Pop(self);

    return self;

    }

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

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

//  

        MGlxMediaList& aMediaList, CGlxUiUtility& aUiUtility) :iFullscreenView(aFullscreenView),

        iMediaList(aMediaList), iUiUtility(aUiUtility)

    {

    // No Implementation

    }

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

// ConstructL

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

//  

    {

    // Construct the base class.

    // Get the icon file

    TFileName resFile(KDC_APP_BITMAP_DIR);

    resFile.Append(KGlxIconsFilename);

    iEnv = iUiUtility.Env();

    CAlfControl::ConstructL(*iEnv);

    CAlfTexture& backgroundTexture = iUiUtility.GlxTextureManager().CreateIconTextureL(

            EMbmGlxiconsQgn_lgal_bg, resFile ) ;

    //----------------------- LAYOUT HIERARCHY -------------------------------

    //

    //                             ->iDateTextVisual 

    //                            |

    //                            |                   

    //                            |->iFavIconImageVisual

    //                            |

    // iMainVisual-->iGridVisual->

    //                            |->iMapIconImageVisual                   

    //                            |                    

    //                            |

    //                             ->iLocationTextVisual 

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

    iMainVisual = CAlfAnchorLayout::AddNewL(*this);

    // BackGround Border Image Visual

    iBackgroundBorderImageVisual = CAlfImageVisual::AddNewL(*this,iMainVisual);

    iBackgroundBorderImageVisual->EnableBrushesL();

    iBackgroundBorderImageVisual->SetImage(TAlfImage(backgroundTexture));

    iBackgroundBorderImageVisual->SetOpacity( 0.6 );

    iGridVisual = CAlfGridLayout::AddNewL(*this, KGridColoumns, KGridRows, iMainVisual);

    CAlfControlGroup* group =&iEnv->ControlGroup(KGlxFullScreenControlGrpId);

    group->AppendL(this);

    // Create a 1 pixel Border brush and append it to the background visual

    CAlfBorderBrush* borderBrush= CAlfBorderBrush::NewLC(*iEnv, 1, 1, 0, 0);

    borderBrush->SetColor(KRgbWhite);

    iBackgroundBorderImageVisual->Brushes()->AppendL(borderBrush, EAlfHasOwnership);

    CleanupStack::Pop(borderBrush);

    iMediaList.AddMediaListObserverL( this );

    // Set up and add the context

    iAttribContext = CGlxDefaultAttributeContext::NewL();

    // add all the attributes needed in handleattributes available

    // this is because even

    iAttribContext->AddAttributeL( KMPXMediaGeneralDate );

    iAttribContext->AddAttributeL( KGlxMediaGeneralLocation );

    // Using priority as same as UMP view's album pane

    iMediaList.AddContextL( iAttribContext, KGlxFetchContextPriorityLow );

    // Hide the Metapane at the initial start up, to avoid flicker

    ShowMetaPane(EFalse);

    CreateGridL();

    iMainVisual->SetFlag(EAlfVisualFlagManualLayout);

    // Update the pos and size of the visual 

    UpdatePosition();

    // Create the Metapane

    iSLMPFavMLObserver = CGlxSLMPFavMLObserver::NewL(*this, iMediaList.FocusIndex(), &iMediaList);

    // Update the Grid Visuals with initial Data

    UpdateMetaPaneL(iMediaList.FocusIndex(), &iMediaList, ETrue);

    // Setting the Flag to get layout change notifications

    iMainVisual->SetFlag ( EAlfVisualFlagLayoutUpdateNotification); 

    // Store the Current Screensize

    iScreenSize = GetScreenSize();

    }

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

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

//  

    {

    iMediaList.RemoveMediaListObserver(this);

    if( iAttribContext )

        {

        iMediaList.RemoveContext( iAttribContext );

        delete iAttribContext;

        }

    if (iMainVisual)

        {

        iMainVisual->RemoveAndDestroyAllD();

        iMainVisual = NULL;

        }

    if (iSLMPFavMLObserver)

        {

        delete iSLMPFavMLObserver;

        iSLMPFavMLObserver= NULL;

        }

    }

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

// CreateIconTextureAndUpdateVisualsL

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

//  

    {

    // Get the icon file

    TFileName resFile(KDC_APP_BITMAP_DIR);

    resFile.Append(KGlxIconsFilename);

    CGlxTextureManager& tm = (iUiUtility.GlxTextureManager());

    //Create the texture for broken thumbnail

    iFavNotAddedIconTexture = &(tm.CreateIconTextureL(

            EMbmGlxiconsQgn_lgal_fav2, resFile ) ) ;

    iFavAddedIconTexture = &(tm.CreateIconTextureL(

            EMbmGlxiconsQgn_lgal_fav1, resFile ) );

    CAlfTexture& locIconTexture = tm.CreateIconTextureL(

            EMbmGlxiconsQgn_menu_maps, resFile ) ;

    iLocIconImageVisual->SetImage(TAlfImage(locIconTexture));

    }

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

// CreateGridL

// @bug :tapadar :major :This function is using magic numbers, would be corrected with updated LAF docs

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

//  

    {

    iGridVisual->SetPadding(TPoint(1,1));

    iGridVisual->SetInnerPadding( TPoint(1,1) );

    RArray<TInt> weights;

    CleanupClosePushL(weights);

    User::LeaveIfError(weights.Append(2));

    User::LeaveIfError(weights.Append(1));

    User::LeaveIfError(weights.Append(1));

    User::LeaveIfError(weights.Append(5));

    iGridVisual->SetColumnsL(weights);

    CleanupStack::PopAndDestroy(&weights);

    iDateTextVisual = CAlfTextVisual::AddNewL(*this,iGridVisual);

    iDateTextVisual->SetStyle( EAlfTextStyleSmall, EAlfBackgroundTypeDark );

    iDateTextVisual->SetWrapping( CAlfTextVisual::ELineWrapTruncate );

    iDateTextVisual->SetTextL( KEmptyText );

    iDateTextVisual->SetAlign(EAlfAlignHLocale, EAlfAlignVCenter);

    iFavIconImageVisual= CAlfImageVisual::AddNewL(*this,iGridVisual);

    iFavIconImageVisual->SetScaleMode(CAlfImageVisual::EScaleFitInside);

    iFavIconImageVisual->SetTagL(KTagFav);

    CAlfBorderBrush* borderBrush= CAlfBorderBrush::NewLC(*iEnv, 1, 1, 0, 0);

    borderBrush->SetColor(KRgbWhite);

    borderBrush->SetOpacity(0.35f);

    iFavIconImageVisual->EnableBrushesL();

    iFavIconImageVisual->Brushes()->AppendL(borderBrush, EAlfHasOwnership);

    CleanupStack::Pop(borderBrush);

    iLocIconImageVisual = CAlfImageVisual::AddNewL(*this,iGridVisual);

    iLocIconImageVisual->SetScaleMode(CAlfImageVisual::EScaleFitInside);

    // Creates the Icon Textures and Updates the Favourite and Loc Icon Visuals

    CreateIconTextureAndUpdateVisualsL();

    iLocationTextVisual = CAlfTextVisual::AddNewL(*this,iGridVisual);

    iLocationTextVisual->SetStyle( EAlfTextStyleSmall, EAlfBackgroundTypeDark );

    iLocationTextVisual->SetWrapping( CAlfTextVisual::ELineWrapTruncate );

    HBufC* noLocationInfo = 

        StringLoader::LoadLC(R_FULLSCREEN_NO_LOCATION_INFO);

    iLocationTextVisual->SetTextL(*noLocationInfo);

    CleanupStack::PopAndDestroy(noLocationInfo );

    iLocationTextVisual->SetTagL(KTagLoc);

    iLocationTextVisual->SetAlign(EAlfAlignHLocale, EAlfAlignVCenter);

    }

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

// ShowMetaPane

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

//  

    {

    if(aShow)

        {

        iMainVisual->SetOpacity(KOpacityOpaque);    

        }

    else

        {

        iMainVisual->SetOpacity(KOpacityTransparent);

        }

    }

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

// OfferEventL

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

//  

    {

    TBool consumed = EFalse;

    if (aEvent.IsKeyEvent())

        {

        }

    // Dont handle if not visible. [HACK ALERT]: This might probably be a hack. 

	// Further investigation needed. 

    if (KOpacityTransparent == iMainVisual->Opacity().ValueNow())

        {

        return consumed;

        }

    if(aEvent.IsPointerEvent() && aEvent.PointerDown() )

        {

        CAlfVisual* onVisual = NULL;

        onVisual = aEvent.Visual();

        if(AlfUtil::TagMatches(onVisual->Tag(), KTagFav))

            {

            if (iFavIconStatus)

                {

                iFullscreenView.HandleCommandL(EGlxCmdRemoveFromFavourites,this);

                }

            else

                {

                iFullscreenView.HandleCommandL(EGlxCmdAddToFavourites,this);    

                }

            consumed = ETrue;

            }

        else if (AlfUtil::TagMatches(onVisual->Tag(), KTagLoc))

            {

            iFullscreenView.HandleCommandL(KGlxCmdMnShowMap,this); 

            consumed = ETrue;

            }

        }

    return consumed;

    }

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

// VisualLayoutUpdated

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

//  

    {

    // Update the Screen positions only if the layout has changed.

    // For performace improvement

    TRect presentScreenSize = GetScreenSize();

    if (iScreenSize.Width() != presentScreenSize.Width())

        {

        UpdatePosition();

        iScreenSize = presentScreenSize;

        }

    }

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

// DetermineOrientation

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

//  

    {

    TInt orientationValue = (aRect.Width()>aRect.Height()?EMetaOrinentaionLandscape:

                                                            EMetaOrinentaionPortrait);

    return orientationValue;

    }

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

// GetScreenSize

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

//  

    {

    return AlfUtil::ScreenSize();

    }

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

// UpdatePosition

// @bug :tapadar :major :This function is using magic numbers, would be corrected with updated LAF docs

// @bug :tapadar :major :This function needs to be worked upon across corrolla and ivalo once LAF present

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

//  

    {

    TRect rect = GetScreenSize();

    TInt screenWidth = rect.Width();

    TInt screenHeight = rect.Height();

    TInt orientation = DetermineOrientation(rect);

    // Switch off the Flag for layout update notification, else a change in size/pos 

    // will call VisualLayoutUpdated multiple times.

    iMainVisual->ClearFlag( EAlfVisualFlagLayoutUpdateNotification);

    if (EMetaOrinentaionPortrait == orientation)

        {

        if (toolbar->IsToolbarDisabled())

            {

            //set the control size

            iMainVisual->SetSize(TSize(screenWidth-6,45));

            iMainVisual->SetPos(TAlfRealPoint(3,screenHeight-100));

            }

        else

            {

            //set the control size

            iMainVisual->SetSize(TSize(screenWidth-6,45));

            iMainVisual->SetPos(TAlfRealPoint(3,screenHeight-160));

            }

        }

    else if(EMetaOrinentaionLandscape == orientation)

        {

        //set the control size

        iMainVisual->SetSize(TSize(screenWidth-100,45));

        iMainVisual->SetPos(TAlfRealPoint(3,screenHeight-45));

        }

    else

        {

        }

    iMainVisual->SetFlag ( EAlfVisualFlagLayoutUpdateNotification);

    }

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

// UpdateMetaPaneL

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

//  

            TBool aUpdateFavIcon)

    {

    const TGlxMedia& item = aList->Item(aFocusIndex);

    const CGlxMedia* media = item.Properties();

    CGlxUStringConverter* stringConverter = CGlxUStringConverter::NewL();

    CleanupStack::PushL(stringConverter );

    HBufC* dataString = NULL;

    if (media->IsSupported(KMPXMediaGeneralDate))

        {

        // R_QTN_DATE_USUAL is for the Date of format 08/02/1982 type

        stringConverter->AsStringL( item, KMPXMediaGeneralDate,R_QTN_DATE_USUAL, 

                dataString );

        if (dataString)

            {

            iDateTextVisual->SetTextL(*dataString);            

            }

        }

    if (media->IsSupported(KGlxMediaGeneralLocation))

        {

        stringConverter->AsStringL( item, KGlxMediaGeneralLocation,0, dataString );

        if (dataString->Compare(KFormat) != 0)

            {

            iLocationTextVisual->SetTextL(*dataString);

            }

        }

    else

        {

        HBufC* noLocationInfo = 

                  StringLoader::LoadLC(R_FULLSCREEN_NO_LOCATION_INFO);

        iLocationTextVisual->SetTextL(*noLocationInfo);

        CleanupStack::PopAndDestroy(noLocationInfo );

        }

    delete dataString;

    dataString = NULL;

    CleanupStack::PopAndDestroy(stringConverter );

    // Setting the not created icon to the FavIcon initially, would update it once available 

    // through HandleObjectChangeL

    if (aUpdateFavIcon)

        {

        iFavIconStatus = EFalse;

        iFavIconImageVisual->SetImage(TAlfImage(*iFavNotAddedIconTexture));

        }

    }

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

// HandleUpdateIconL

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

//  

    {

    // Check if the item is added to favourites already

    if (aModify)

        {

        iFavIconStatus = ETrue;

        iFavIconImageVisual->SetImage(TAlfImage(*iFavAddedIconTexture));

        }

    else

        {

        iFavIconStatus = EFalse;

        iFavIconImageVisual->SetImage(TAlfImage(*iFavNotAddedIconTexture));

        }

    }

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

// HandleItemAddedL

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

//  

        MGlxMediaList* /*aList*/ )

    {