1 /*

     2 * Copyright (c) 2001 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  Implementation of classes derived from MAknWsEventObserver  

    15 *  Support for the observation of events prior to their normal handling in the the

    16 *  App Ui.

    17 *

    18 *

    19 */

    20 

    21 

    22 

    23 // INCLUDES

    24 #include "AknWsEventObserver.h"

    25 

    26 

    27 // LOCAL FUNCTIONS

    28 

    29 GLDEF_C void Panic(TAknWsEventObserverPanic aPanic)

    30 	{

    31 	_LIT(KPanicCat,"Avkon Ws Event Observer");

    32 	User::Panic(KPanicCat, aPanic);

    33 	}

    34 

    35 // IMPLEMENTATIONS

    36 

    37 CAknWsEventMonitor* CAknWsEventMonitor::NewL()

    38 	{

    39 	CAknWsEventMonitor* self=new(ELeave)CAknWsEventMonitor();

    40 	CleanupStack::PushL(self);

    41 	self->ConstructL();

    42 	CleanupStack::Pop();

    43 	return self;

    44 	}

    45 

    46 CAknWsEventMonitor::~CAknWsEventMonitor()

    47 	{

    48 	if (iEventObservers)

    49 	    iEventObservers->Close();

    50 	delete iEventObservers;

    51 	}

    52 

    53 void CAknWsEventMonitor::ConstructL()

    54 	{

    55 	iEventObservers = new (ELeave) RPointerArray<MAknWsEventObserver>(4);

    56 	}

    57 

    58 EXPORT_C void CAknWsEventMonitor::AddObserverL( MAknWsEventObserver* aEventObserver)

    59 	{

    60     TInt index = iEventObservers->Find(aEventObserver);

    61     if (index == KErrNotFound)

    62         {

    63         iEventObservers->AppendL(aEventObserver);

    64         }

    65 	}

    66 

    67 EXPORT_C void CAknWsEventMonitor::RemoveObserver(const MAknWsEventObserver* aEventObserver)

    68 	{

    69 	// Remove the pointer, as the object may want to disappear...

    70     TInt index = iEventObservers->Find(aEventObserver);

    71     if (index != KErrNotFound)

    72         {

    73         iEventObservers->Remove(index);

    74         }

    75 	}

    76 

    77 EXPORT_C void CAknWsEventMonitor::HandleWsEventL(const TWsEvent& aEvent, CCoeControl* aDestination )

    78     {

    79     // make a quickshot for current Observers.

    80     TInt count = iEventObservers->Count();

    81     if ( count == 0 )

    82         {

    83         return;

    84         }

    85     

    86     // not own

    87     RArray<MAknWsEventObserver*> snapShot( 4 );

    88     CleanupClosePushL( snapShot );

    89     

    90     for ( TInt i = 0; i < count; i++ )

    91         {

    92         snapShot.AppendL( (*iEventObservers)[i] );

    93         }

    94     

    95     for ( TInt i = 0; i < count; i++ )

    96         {

    97         MAknWsEventObserver* eventObserver = snapShot[i];

    98         if ( eventObserver && iEventObservers->Find( eventObserver ) != KErrNotFound )

    99             {

   100             eventObserver->HandleWsEventL(aEvent, aDestination);

   101             }

   102         }

   103    

   104     CleanupStack::PopAndDestroy(); // CleanupClosePushL( quichShort );

   105     }

   106 

   107 EXPORT_C void CAknWsEventMonitor::Enable(TBool aEnable)

   108     {

   109     iEnabled = aEnable;

   110     }

   111 	

   112 TBool CAknWsEventMonitor::IsEnabled()

   113     {

   114     return iEnabled;

   115     }

   116 

   117 EXPORT_C void CAknWsEventMonitor::Reserved_1()

   118 	{

   119 	}

   120 

   121