/*

* Copyright (c) 2008 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:   This is the source file for the CClockAppUi class.

*

*/

// System includes

#include <e32base.h>

#include <avkon.hrh>

#include <avkon.rsg>

#include <bacntf.h>

#include <clock.rsg>

#include <akntitle.h>

#include <akntabgrp.h>

#include <aknnavide.h>

#include <clockapp_tab.mbg>

#include <AknsConstants.h>

#include <featmgr.h>  

// User includes

#include "clock.h"

#include "clockappui.h"

#include "clockmainview.h"

#include "clockworldview.h"

#include "clkdatetimeview.h"

#include "clkuialarmmodel.h"

#include "clockdocument.h"

#include "clock.hrh"

#include "clkdatetimeview.hrh"

#include "clock_debug.h"

// Constants

const TInt KClockNotiferPriority( CActive::EPriorityIdle );

const TInt KMaxTitleLength( 64 );

const TInt KInitialEvent( EChangesLocale |

                          EChangesMidnightCrossover |

                          EChangesThreadDeath |

                          EChangesPowerStatus |

                          EChangesSystemTime |

                          EChangesFreeMemory |

                          EChangesOutOfMemory );

// Literals

_LIT( KIconFileName, "\\resource\\apps\\clockapp_tab.mif" );

_LIT( KIAParamExec, "clock.exe" );

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

// CClockAppUi::CClockAppUi

// rest of the details are commented in the header

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

//

CClockAppUi::CClockAppUi()

    {

    // No implementation yet.

    }

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

// CClockAppUi::~CClockAppUi

// rest of the details are commented in the header

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

//

CClockAppUi::~CClockAppUi()

    {

    // No more observing tab change events.

    if( iTabGroup )

        {

        iTabGroup->SetObserver( NULL );

        }

    if( iEnvChangeNotifier )

        {

        delete iEnvChangeNotifier;

        iEnvChangeNotifier = NULL;

        }

    if( iNavigationDecorator )

        {

        delete iNavigationDecorator;

        iNavigationDecorator = NULL;

        }

    // These should be deleted already when they are not needed any more, otherwise

       // the client-server connection is kept open.

       // These are here just in case they were not deleted earlier.

    if( iUpdate )

        {

        delete iUpdate;

        iUpdate = NULL;

        }

    if( iParameters )

        {

        delete iParameters;

        iParameters = NULL;

        }

    }

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

// CClockAppUi::ConstructL

// rest of the details are commented in the header

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

//

void CClockAppUi::ConstructL()

	{

	//single click integration

    BaseConstructL( EAknEnableMSK | EAknEnableSkin |

            EAknSingleClickCompatible );

	iIADUpdateFlag = ETrue;

	// Get the alarm model.

	CClkUiAlarmModel* alarmModel = static_cast< CClockDocument* > ( Document() )->AlarmModel();

	// Construct the view and add it to the view server stack.

	CClockMainView* clockMainView = CClockMainView::NewL( alarmModel );

	AddViewL( clockMainView );

	// Construct the world view and add it to the view server stack.

	CClockWorldView* clockWorldView = CClockWorldView::NewL();

	AddViewL( clockWorldView );

	// Construct the datetime settings view.

    CClkDateTimeView* dateTimeView = CClkDateTimeView::NewLC( KClockAppMainViewId, ETrue );

    AddViewL( dateTimeView );

    CleanupStack::Pop( dateTimeView );

	// Start the model.

	alarmModel->Start();

	// Construct and start the environment change notifier.

	TCallBack callBack( NotifierCallbackL, this );

	iEnvChangeNotifier = CEnvironmentChangeNotifier::NewL( KClockNotiferPriority, callBack );

	if( !iEnvChangeNotifier->IsActive() )

	    {

	    iEnvChangeNotifier->Start();

	    }

	// Set the above view as default.

	SetDefaultViewL( *clockMainView );

    // Setup Navigation Pane.

    SetupNavigationPaneL();

	// Clock is one of the applications which is launched in the phone boot and it runs in background. If thats the case,

	// the view is not activated when it is in background and it happens when clock is opened for the first time.

	// If the app is in background, we activate the main view here to ensure faster bootup when the application is opened for the first time.

	if( !IsForeground() )

		{

		if( ExitHidesInBackground() )

			{

			// First hide application in the background.

            HideInBackground();

            // Set a flag indicating that the app is hidden.

            SetAppHidden( ETrue );

            // Prevent the control from getting displayed immediately.

            SetCustomControl( 1 );

            // Reset to initial state

            ResetToInitialStateL();

            // This allows the prevented control to be displayed after the application is

            // reopened.

            // SetCustomControl( 0 );

			}

		}

	}

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

// CClockAppUi::NotifierCallbackL

// rest of the details are commented in the header

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

//

TInt CClockAppUi::NotifierCallbackL( TAny* aPtr )

    {

    // Get the this object.

    CClockAppUi* self = static_cast< CClockAppUi* >( aPtr );

    // Get the changes in environment.

    TInt envChanges( self->iEnvChangeNotifier->Change() );

    if( KInitialEvent <= envChanges )

        {

        // We're not concerned about handling environment changes in that range.

        return FALSE;

        }

    if( envChanges & ( EChangesMidnightCrossover |

                       EChangesLocale |

                       EChangesSystemTime ) )

        {

        // We have to handle one of these changes.

        self->HandleEnvChangeL( EEnvChanged );

        }

    return FALSE;

    }

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

// CClockAppUi::HandleCommandL

// rest of the details are commented in the header

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

//

void CClockAppUi::HandleCommandL( TInt aCommandId )

    {

    switch( aCommandId )

    	{

    	case EClockSettings:

    	    {

    	    // Open datetime settings view

    	    OpenSettingsViewL();

    	    }

    	    break;

    	case EClockMainViewExit:

    	case EClockWorldExit:

    	case EClkSettExitCmd:

    	case EClockAlarmExit:

    	case EAknSoftkeyExit:

    	    {

    	    if( ExitHidesInBackground() )

    	        {

    	        HandleCommandL( EAknCmdHideInBackground );

    	        }

    	    else

    	        {

    	        Exit();

    	        }

    	    }

    	    break;

    	case EAknCmdHideInBackground:

    	    {

    	    // First hide application in the background.

            HideInBackground();

            // Set a flag indicating that the app is hidden.

            SetAppHidden( ETrue );

            iIADUpdateFlag = ETrue;

            // Prevent the control from getting displayed immediately.

            SetCustomControl( 1 );

            // Reset to initial state

            ResetToInitialStateL();

    	    }

    	    break;

    	case EEikCmdExit:

        case EAknCmdExit:

            {

            iIADUpdateFlag = ETrue;

            // In these two cases, we do a hard exit i.e., we close the application.

            Exit();

            }

    	default:

    		{

    		// No implementation yet.

    		}

    		break;

    	}

    }

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

// CClockAppUi::TabChangedL

// rest of the details are commented in the header

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

//

void CClockAppUi::TabChangedL( TInt aTabIndex )

    {

    TInt activeTabId( iTabGroup->TabIdFromIndex( aTabIndex ) );

    // Switch on the active tab id and activate the corresponding view.

    switch( activeTabId )

        {

        case EClockAppMainViewId:

            {

            // The main view.

            ActivateLocalViewL( KClockAppMainViewId );

            }

            break;

        case EClockAppWorldViewId:

            {

            // The clockworld view.

            ActivateLocalViewL( KClockAppWorldViewId );

            }

            break;

        default:

            {

            // No implementaiton yet.

            }

            break;

        }

    }

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

// CClockAppUi::HandleKeyEventL

// rest of the details are commented in the header

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

//

TKeyResponse CClockAppUi::HandleKeyEventL( const TKeyEvent& aKeyEvent, TEventCode aType )

    {

    TKeyResponse keyResponse( EKeyWasNotConsumed );

    if( iTabGroup )

        {

        CAknTabGroup* tabGroup = NULL;

        if ( iNavigationDecorator )

            {

            // Get the pointer to the tab group.

            tabGroup = ( CAknTabGroup* ) iNavigationDecorator->DecoratedControl();

            // Pass the event to the tab group so that it handles the event.

            keyResponse = tabGroup->OfferKeyEventL( aKeyEvent, aType );

            }

        }

    // Return the result.

    return keyResponse;

    }

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

// CClockAppUi::HandleForegroundEventL

// rest of the details are commented in the header

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

//

void CClockAppUi::HandleForegroundEventL( TBool aForeground )

    {

    __PRINTS( "CClockAppUi::HandleForegroundEventL - Entry" );

    if( aForeground )

        {

        __PRINTS( "CClockAppUi::HandleForegroundEventL - aForeground ETrue" );

        if( iIADUpdateFlag )

            {

            __PRINTS( "CClockAppUi::HandleForegroundEventL - iIADUpdateFlag ETrue" );

            // check for IAD updates

            HandleIADUpdateL();

            __PRINTS( "CClockAppUi::HandleForegroundEventL - Checking for updates" );

            iIADUpdateFlag = EFalse;

            __PRINTS( "CClockAppUi::HandleForegroundEventL - iIADUpdateFlag EFalse" );

            }

        }

    // Inform the world clock view about the change

    CClockWorldView* clockWorldView = static_cast< CClockWorldView* > ( View( KClockAppWorldViewId ) );

    if( clockWorldView )

        {

        clockWorldView->HandleForegroundEventL( aForeground );

        }

    CClockMainView* clockMainView = static_cast< CClockMainView* >( View( KClockAppMainViewId ) );

    if( clockMainView )

        {

        clockMainView->HandleForegroundEventL( aForeground );

        }

	CAknAppUi::HandleForegroundEventL( aForeground );

    __PRINTS( "CClockAppUi::HandleForegroundEventL - Exit" );

    }

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

// CClockAppUi::CheckUpdatesComplete

// rest of the details commented in the header

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

//

void CClockAppUi::CheckUpdatesComplete( TInt aErrorCode, TInt aAvailableUpdates )

    {

    __PRINTS( "CClockAppUi::CheckUpdatesComplete - Entry" );

    __PRINT( "aErrorCode: %d", aErrorCode );

    if ( aErrorCode == KErrNone )

        {

        if ( aAvailableUpdates > 0 )

            {

            __PRINT( "aAvailableUpdates: %d", aAvailableUpdates );

            // There were some updates available. Let's ask if the user wants to update them.

            iUpdate->UpdateQuery();      

            __PRINTS( "CClockAppUi::CheckUpdatesComplete - update available" );

            }

        else

            {

            __PRINTS( "CClockAppUi::CheckUpdatesComplete - no update available" );

            // No updates available. CIAUpdate object could be deleted already now, since we are not 

            // going to call anything else from the API. This will also close down the IAUpdate server.

            delete iUpdate;

            iUpdate = NULL;

            delete iParameters;

            iParameters = NULL;           

            }

        }

    __PRINTS( "CClockAppUi::CheckUpdatesComplete - Exit" );

    }

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

// CClockAppUi::UpdateComplete

// rest of the details commented in the header

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

//

void CClockAppUi::UpdateComplete( TInt aErrorCode, CIAUpdateResult* aResult )

    {

    __PRINTS( "CClockAppUi::UpdateComplete - Entry" );

    __PRINT( "aErrorCode: %d", aErrorCode );

    delete aResult; // Ownership was transferred, so this must be deleted by the client

    // We do not need the client-server session anymore, let's delete the object to close the session

    delete iUpdate;

    iUpdate = NULL;

    delete iParameters;

    iParameters = NULL;

    __PRINTS( "CClockAppUi::UpdateComplete - Exit" );

    }

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

// CClockAppUi::UpdateQueryComplete

// rest of the details commented in the header

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

//    

void CClockAppUi::UpdateQueryComplete( TInt aErrorCode, TBool aUpdateNow )

    {

    __PRINTS( "CClockAppUi::UpdateQueryComplete - Entry" );

    __PRINT( "aErrorCode: %d", aErrorCode );

    if ( aErrorCode == KErrNone )

        {

        if ( aUpdateNow )

            {

            __PRINTS( "CClockAppUi::UpdateQueryComplete - aUpdateNow is true" );

            // User choosed to update now, so let's launch the IAUpdate UI.

            iUpdate->ShowUpdates( *iParameters );

            }

        else

            {

            __PRINTS( "CClockAppUi::UpdateQueryComplete - update later" );

            // The answer was 'Later'. CIAUpdate object could be deleted already now, since we are not 

            // going to call anything else from the API. This will also close down the IAUpdate server.

            delete iUpdate;

            iUpdate = NULL;

            delete iParameters;

            iParameters = NULL;                

            }

        }

    __PRINTS( "CClockAppUi::UpdateQueryComplete - Exit" );

    }

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

// CClockAppUi::HandleEnvChangeL

// rest of the details are commented in the header

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

//

void CClockAppUi::HandleEnvChangeL( TClockEnvChanged aEnvChanged )

    {

    // Notify the views about the change, so that they can update themselves.

    CClockMainView* mainView = static_cast< CClockMainView* > ( View( KClockAppMainViewId ) );

    mainView->HandleEnvChangeL( aEnvChanged );

    // Notify the views about the change, so that they can update themselves.

    CClockWorldView* clockworldView = static_cast< CClockWorldView* > ( View( KClockAppWorldViewId ) );

    clockworldView->HandleEnvChangeL( aEnvChanged );

    }

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

// CClockAppUi::OpenSettingsViewL

// rest of the details are commented in the header

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

//

void CClockAppUi::OpenSettingsViewL()

    {

    // Set the title pane text first

    SetTitlePaneTextL( R_CLOCK_TITLE_SETTINGS );

    // Don't display the navigation pane when switching to settings view.

    if( iNavigationDecorator )

        {

        iNavigationDecorator->MakeVisible( EFalse );

        }

    // Activate the date and time settings view

    ActivateLocalViewL( KClkDateTimeViewId );

    }

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

// CClockAppUi::SetTitlePaneTextL

// rest of the details are commented in the header

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

//

void CClockAppUi::SetTitlePaneTextL( TInt aResourceId )

    {

    CEikStatusPane* statusPane = StatusPane();

    // Set the title pane text

    TBuf< KMaxTitleLength > titleText;

    iCoeEnv->ReadResourceL( titleText, aResourceId );

    CAknTitlePane* titlePane = STATIC_CAST( CAknTitlePane*, statusPane->ControlL( TUid::Uid( EEikStatusPaneUidTitle ) ) );

    titlePane->SetTextL( titleText );

    titlePane->DrawNow();

    }

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

// CClockAppUi::ResetToInitialStateL

// rest of the details commented in the header

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

//

void CClockAppUi::ResetToInitialStateL()

    {

    TVwsViewId viewId;