/*

* Copyright (c) 2002 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:  To create and handle, entry description field 

*                of Unifiededitor.

*/

// system includes

#include <aknnotewrappers.h>

#include <AknQueryDialog.h>

#include <calentry.h>

#include <eikmenup.h>

#include <NpdApi.h>

#include <StringLoader.h>

#include <CalenDefaultEditorsData.rsg>

// user includes

#include "CalenDescription.h"

#include "CalenDescriptionField.h"

#include "calenunifiededitor.h"

#include "CalenDefaultEditors.hrh"

// debug

#include "calendarui_debug.h"

// ============================ MEMBER FUNCTIONS ===============================

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

// CCalenDescription::CCalenDescription

// C++ constructor can NOT contain any code, that might leave.

// (other items were commented in a header).

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

//

CCalenDescription::CCalenDescription( CCalenUnifiedEditor& aEditor )

    : iEditor( aEditor )

    {

    TRACE_ENTRY_POINT;

    TRACE_EXIT_POINT;

    }

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

// CCalenDescription::ConstructL

// Leaving construction.

// (other items were commented in a header).

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

//

void CCalenDescription::ConstructL()

    {

    TRACE_ENTRY_POINT;

    TRACE_EXIT_POINT;

    }

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

// CCalenDescription::NewL

// Two-phased constructor.

// (other items were commented in a header).

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

//

CCalenDescription* CCalenDescription::NewL( CCalenUnifiedEditor& aEditor )

    {

    TRACE_ENTRY_POINT;

    CCalenDescription* self = new( ELeave ) CCalenDescription( aEditor );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop();

    TRACE_EXIT_POINT;

    return self;

    }

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

// CCalenDescription::~CCalenDescription

// Destructor.

// (other items were commented in a header).

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

//

CCalenDescription::~CCalenDescription()

    {

    TRACE_ENTRY_POINT;

    TRACE_EXIT_POINT;

    }

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

// CCalenDescription::CreateFieldL

// Create a description field.

// (other items were commented in a header).

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

//

SEikControlInfo CCalenDescription::CreateFieldL()

    {

    TRACE_ENTRY_POINT;

    SEikControlInfo control = { NULL, 0, 0 };

    control.iControl = new ( ELeave ) CCalenDescriptionField( *this );

    control.iTrailerTextId = 0;

    control.iFlags = 0;

    TRACE_EXIT_POINT;

    return control;

    }

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

// CCalenDescription::InitDescritpionFieldLayoutL

// Updates fields just before the form is shown.

// (other items were commented in a header).

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

//

void CCalenDescription::InitDescritpionFieldLayoutL()

    {

    TRACE_ENTRY_POINT;

    if ( EntryHasDescription() )

        {

        ShowFieldL();

        }

    TRACE_EXIT_POINT;

    }

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

// CCalenDescription::PostLayoutDynInitL

// (other items were commented in a header).

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

//

void CCalenDescription::PostLayoutDynInitL()

    {

    TRACE_ENTRY_POINT;

    TRACE_EXIT_POINT;

    }

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

// CCalenDescription::DynInitMenuPaneL

// Called just before the options menu is shown.

// (other items were commented in a header).

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

//

void CCalenDescription::DynInitMenuPaneL( TInt aResourceId, 

                                         CEikMenuPane* aMenuPane )

    {

    TRACE_ENTRY_POINT;

    // Handle unified editor menu pane

    if( aResourceId == R_CALEN_UNIFIED_EDITOR_MENUPANE )

        {

        aMenuPane->AddMenuItemsL( R_CALEN_DESCRIPTION_MENU_PANE );

        if( EntryHasDescription() )

            {

            // Entry already has Description, delete Add description menu item

            aMenuPane->DeleteMenuItem( ECalenCmdAddDescription );

            if ( !IsFieldFocused() )

                {

                // Description field not focused,

                // delete Show/Remove descripion menu item.

                aMenuPane->DeleteMenuItem( ECalenCmdShowDescription );

                aMenuPane->DeleteMenuItem( ECalenCmdRemoveDescription );

                }

            }

        else 

            {

            // Entry don't have description,

            // delete Show/Remove descripion menu item.

            aMenuPane->DeleteMenuItem( ECalenCmdShowDescription );

            aMenuPane->DeleteMenuItem( ECalenCmdRemoveDescription );

            }

        }

    TRACE_EXIT_POINT;

    }

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

// CCalenDescription::ProcessCommandL

// Process commands from the user.

// (other items were commented in a header).

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

//

TBool CCalenDescription::ProcessCommandL( TInt aCommandId )

    {

    TRACE_ENTRY_POINT;

    TBool processed = EFalse;

    switch( aCommandId )

        {

        case ECalenCmdAddDescriptionNew:

            {

            AddNewL();

            processed = ETrue;

            break;

            }

        case ECalenCmdAddDescriptionExisting:

            {

            AddMemoL();

            processed = ETrue;

            break;

            }

        case ECalenCmdAddDescription:

            {

            if(EntryHasDescription())

                {

                ShowL();

                processed = ETrue;

                }

            else

                {

                processed = HandleAddDescriptionL();

                }

            break;

            }

        case ECalenCmdShowDescription:

            {

            ShowL();

            processed = ETrue;

            break;

            }

        case ECalenCmdRemoveDescription:

            {

            RemoveL();

            processed = ETrue;

            break;

            }

         default:

            break;            

        }

    TRACE_EXIT_POINT;

    return processed;

    }

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

// CCalenDescription::AddNewL

// Add a new description.

// (other items were commented in a header).

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

//

void CCalenDescription::AddNewL()

    {

    TRACE_ENTRY_POINT;

    __ASSERT_DEBUG( !EntryHasDescription(), User::Invariant() );

    TInt status = KErrNone;

    HBufC* desc = ExecTextEditorL( status, KNullDesC );

    HandleAddL( status, desc );

    TRACE_EXIT_POINT;

    }

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

// CCalenDescription::AddMemoL

// Add a memo.

// (other items were commented in a header).

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

//

void CCalenDescription::AddMemoL()

    {

    TRACE_ENTRY_POINT;

    __ASSERT_DEBUG( !EntryHasDescription(), User::Invariant() );

    HBufC* desc = CNotepadApi::FetchMemoL();

    HandleAddL( KErrNone, desc ); // ownership of description transferred

    TRACE_EXIT_POINT;

    }

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

// CCalenDescription::ShowL

// Show the description.

// (other items were commented in a header).

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

//

void CCalenDescription::ShowL()

    {

    TRACE_ENTRY_POINT;

    __ASSERT_DEBUG( EntryHasDescription(), User::Invariant() );

    __ASSERT_DEBUG( IsFieldVisible(), User::Invariant() );

    __ASSERT_DEBUG( IsFieldFocused(), User::Invariant() );

    TInt status = KErrNone;

    // Get description text to 'oldDesc'

    const TDesC& oldDesc = iEditor.Edited().Description();

    // Open Description in edit mode

    HBufC* desc = ExecTextEditorL( status, oldDesc );

    HandleUpdateL( status, desc ); //ownership of description transferred

    TRACE_EXIT_POINT;

    }

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

// CCalenDescription::EditL

// Edit the description.

// (other items were commented in a header).

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

//

void CCalenDescription::EditL()

    {

    TRACE_ENTRY_POINT;

    __ASSERT_DEBUG( EntryHasDescription(), User::Invariant() );

    __ASSERT_DEBUG( IsFieldVisible(), User::Invariant() );

    __ASSERT_DEBUG( IsFieldFocused(), User::Invariant() );

    TInt status = KErrNone;

    // Get description text to 'oldDesc'

    const TDesC& oldDesc = iEditor.Edited().Description();

    // Edit Descripton 'oldDesc', in notepad viewer

    HBufC* desc = ExecTextEditorL( status, oldDesc );

    HandleUpdateL( status, desc ); //ownership of description transferred

    TRACE_EXIT_POINT;

    }

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

// CCalenDescription::RemoveL

// Remove the description.

// (other items were commented in a header).

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

//

void CCalenDescription::RemoveL()

    {

    TRACE_ENTRY_POINT;

    __ASSERT_DEBUG( EntryHasDescription(), User::Invariant() );

    __ASSERT_DEBUG( IsFieldVisible(), User::Invariant() );

    __ASSERT_DEBUG( IsFieldFocused(), User::Invariant() );

    // Ask remove description query.

    CAknQueryDialog* dlg = CAknQueryDialog::NewL();

    if( dlg->ExecuteLD(R_CALEN_REMOVE_DESCRIPTION_CONFIRMATION_QUERY) )

        {

        // remove description

        DoRemoveL();

        }

    TRACE_EXIT_POINT;

    }

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

// CCalenDescription::EntryHasDescription

// Returns ETrue if the entry has a desciption, EFalse otherwise.

// (other items were commented in a header).

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

//

TBool CCalenDescription::EntryHasDescription() const

    {

    TRACE_ENTRY_POINT;

    TRACE_EXIT_POINT;

    return iEditor.Edited().Description().Length() > 0;

    }

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

// CCalenDescription::IsEditedL

// Returns ETrue if the description has been edited, EFalse otherwise.

// (other items were commented in a header).

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

//

TBool CCalenDescription::IsEditedL() const

    {

    TRACE_ENTRY_POINT;

    TRACE_EXIT_POINT;

    return iEditor.EditorDataHandler().IsDescriptionEdited();

    }

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

// CCalenDescription::ShowFieldL

// Show the description field.

// (other items were commented in a header).

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

//

void CCalenDescription::ShowFieldL()

    {

    TRACE_ENTRY_POINT;

    Field()->SetTextL( &( iEditor.Edited().Description() ) );

    TRACE_EXIT_POINT;

    }

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

// CCalenDescription::HideFieldL

// Hide the description field.

// (other items were commented in a header).

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

//

void CCalenDescription::HideFieldL()

    {

    TRACE_ENTRY_POINT;

    if( iEditor.ControlOrNull( ECalenEditorDescription ) != NULL)

        {

        iEditor.DeleteLine( ECalenEditorDescription );

        }

    TRACE_EXIT_POINT;

    }

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

// CCalenDescription::Field

// Returns the description field.

// (other items were commented in a header).

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

//

CCalenDescriptionField* CCalenDescription::Field()

    {

    TRACE_ENTRY_POINT;

    TRACE_EXIT_POINT;

    return static_cast< CCalenDescriptionField* >( iEditor.Control( ECalenEditorDescription ) );

    }

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

// CCalenDescription::IsFieldVisible

// Returns ETrue if the description field is visible, EFalse otherwise.

// (other items were commented in a header).

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

//

TBool CCalenDescription::IsFieldVisible()

    {

    TRACE_ENTRY_POINT;

    TRACE_EXIT_POINT;

    return iEditor.ControlOrNull( ECalenEditorDescription ) != NULL;

    }

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

// CCalenDescription::IsFieldFocused

// Returns ETrue if the description field is focused, EFalse otherwise.

// (other items were commented in a header).

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

//

TBool CCalenDescription::IsFieldFocused()

    {

    TRACE_ENTRY_POINT;

    if( IsFieldVisible() )

        {

        TRACE_EXIT_POINT;

        return Field()->IsFocused();

        }

    else 

        {

        TRACE_EXIT_POINT;

        return EFalse;

        }

    }

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

// CCalenDescription::DoRemoveL

// Remove the description field.

// (other items were commented in a header).

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

//

void CCalenDescription::DoRemoveL()

    {

    TRACE_ENTRY_POINT;

    iEditor.Edited().SetDescriptionL( KNullDesC );

    const TDesC& emptyString = _L("");

    iEditor.SetEditorTextL( ECalenEditorDescription, &emptyString );

    iEditor.UpdateFormL();

    TRACE_EXIT_POINT;

    }

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

// CCalenDescription::HandleAddL

// Handles a new description being added. Sets the new description to the entry.

// (other items were commented in a header).

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

//

void CCalenDescription::HandleAddL( TInt aStatus, HBufC* aDescription )

    {

    TRACE_ENTRY_POINT;

    if ( aStatus == KErrNone && aDescription != NULL ) // entry was edited

        {

        CleanupStack::PushL( aDescription );

        iEditor.Edited().SetDescriptionL( *aDescription );

        CleanupStack::PopAndDestroy( aDescription );

        ShowFieldL();

        iEditor.UpdateFormL();

        iEditor.TryChangeFocusToL( ECalenEditorDescription );

        }

    else // error 

        {

        delete aDescription;

        }

    TRACE_EXIT_POINT;

    }

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

// CCalenDescription::HandleUpdateL

// Handle the description being updated.

// (other items were commented in a header).

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

//

void CCalenDescription::HandleUpdateL( TInt aStatus, HBufC* aDescription )

    {

    TRACE_ENTRY_POINT;

    CleanupStack::PushL( aDescription );

    if ( aStatus == CNotepadApi::ENpdDataDeleted || 

         aStatus == CNotepadApi::ENpdDataErased ) // entry was erased or deleted