uifw/AvKon/src/aknApp.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 11 May 2010 16:27:42 +0300
branchRCL_3
changeset 10 3d340a0166ff
parent 0 2f259fa3e83a
child 19 aecbbf00d063
permissions -rw-r--r--
Revision: 201017 Kit: 201019
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/*
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* Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description: 
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*
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*/
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#include "aknapp.h"
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#include <eikenv.h>
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#ifdef SYMBIAN_ENABLE_SPLIT_HEADERS
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#include <uikon/eikenvinterface.h>
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#endif
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#include <apgtask.h>
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#include <apgwgnam.h>
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#include <AknServerApp.h>
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#include "AknTaskList.h"
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#include <aknenv.h>
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#include <akntranseffect.h> // for Transition effect enumerations
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#include <UikonInternalPSKeys.h>
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#include <e32property.h>
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#include <AknSgcc.h>
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#include <w32std.h>
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LOCAL_C TBool IsInHiddenList(const TUid& aUid)
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	{
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	TBuf16<2 * KMaxHiddenApps> lst;
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	if(KErrNone != RProperty::Get(KPSUidUikon, KUikAppHiddenList, lst))
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		return EFalse;
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	for(TInt i = 0; i < KMaxHiddenApps; i++)
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		{
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		const TInt bytePos = i << 1;
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		const TUint32 uid = (lst[bytePos] << 16) | lst[bytePos + 1];
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		if(aUid.iUid == uid)
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			return ETrue;
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		if(uid == 0) //end of list
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			return EFalse;
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		}
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	return EFalse;
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	}
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EXPORT_C void CAknApplication::PreDocConstructL()
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	{
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	CEikonEnv* env = CEikonEnv::Static();
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	if (!env->StartedAsServerApp() && !env->EikAppUi())
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		{
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		// Only run this check for top level (non embedded) apps.
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		RWsSession& ws = env->WsSession();
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		const TInt myWg = env->RootWin().Identifier();
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		TInt wgId = 0;
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		// set this apps UID in the window group name to remove the gap between this check and it being set in UpdateTaskNameL()
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		TUid uid(AppDllUid());
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		CApaWindowGroupName* wgName = CApaWindowGroupName::NewLC(ws, myWg);
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		wgName->SetAppUid(uid);
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		wgName->SetWindowGroupName(env->RootWin());
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        // Use a CAknTaskList to check for root instances of apps
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        CAknTaskList* taskList = CAknTaskList::NewLC(ws);
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        TBool foundInstance = EFalse;
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0
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		// Look for another instance of this app
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		while (wgId>=0)
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			{
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		    TBool rootTask = taskList->IsRootWindowGroup(wgId);
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		    TBool rootWg = EFalse;
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		    TInt wndPriority = -1;
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		    if ( wgId != myWg && wgId > 0  && !rootTask )
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		        {
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                wndPriority = ws.GetWindowGroupOrdinalPriority( wgId );
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                RArray<RWsSession::TWindowGroupChainInfo> wgs;
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                // it seems effecient to call WindowGroupList here, this codes will seldom executed.
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                ws.WindowGroupList( wndPriority,  &wgs );
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                TInt count = wgs.Count();
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                for ( TInt ii=0; ii<count; ii++ )
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                    {
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                    const RWsSession::TWindowGroupChainInfo& info = wgs[ii];
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                    // find the window group id and check that it has no parent
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                    if ( info.iId == wgId )
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                        {
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                        rootWg = (info.iParentId <= 0);
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                        break;
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                        }
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                    }
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                wgs.Close();
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		        }
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			if (wgId && wgId != myWg  &&  ( rootWg || rootTask ) )
0
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				{	// found another app, switch to it & die
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				/*
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				TApaTask other(ws);
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				other.SetWgId(wgId);
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				other.BringToForeground();
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				CBaActiveScheduler::Exit();
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				*/
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				foundInstance = ETrue;
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				break;
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   112
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				}
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   114
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			CApaWindowGroupName::FindByAppUid(uid,ws,wgId);
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			}
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   117
			
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		if(!foundInstance)
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			{
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			//
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            // Application launched with commands EApaCommandBackground or 
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            // EApaCommandRunWithoutViews has non-zero ordinal position for their
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            // window group.
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            // For such applications transition effects on application start
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            // should not be used.
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            // 
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            TInt ordPosition = env->RootWin().OrdinalPosition();
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			if (!ordPosition)
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			    {
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			    iAvkonEnv->TransitionEvent(AknTransEffect::EApplicationStart, AppDllUid());    
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			    }			            
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			else
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			    {
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			    iAvkonEnv->TransitionEvent( AknTransEffect::EAppStartupBackground, AppDllUid() );
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			    }
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			}
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        else
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            {
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            // If application is launched to background, then do not bring application to
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            // foreground. This needs to be deduced using ordinal position of root window
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            // as command line parameters are not available to this method. With this
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            // approach, there is small chance for error, but it's considered to be so
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            // rare that this is acceptable. For example, otherwise applications launched
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            // to background during startup might cause foreground application changes.
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            const TInt ordPosition = env->RootWin().OrdinalPosition();
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            if ( !ordPosition )
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                {
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                if(wgName->Hidden() || IsInHiddenList(AppDllUid()))
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                    {
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                    iAvkonEnv->TransitionEvent(AknTransEffect::EApplicationStartSwitch, AppDllUid());
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                    }
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                CAknSgcClient::MoveApp(wgId, ESgcMoveAppToForeground);
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                }
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            CBaActiveScheduler::Exit();
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            }
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        CleanupStack::PopAndDestroy(taskList); //taskList        
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        CleanupStack::PopAndDestroy(wgName);
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        }
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   160
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	if(env->StartedAsServerApp())
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		{
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		// Start embedded
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		iAvkonEnv->TransitionEvent(AknTransEffect::EEmbeddedApplicationStart, AppDllUid());
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		}
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	CEikApplication::PreDocConstructL();
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	}
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   168
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EXPORT_C CDictionaryStore* CAknApplication::OpenIniFileLC(RFs& /*aFs*/) const
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	{
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	// By default, ini files are not supported by SERIES60 applications.
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	// If you want to use an ini file, either override this function to base call
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	// CEikApplication::OpenIniFileLC, or call it directly.
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	User::Leave(KErrNotSupported);
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	return NULL;
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	}
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   177
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EXPORT_C void CAknApplication::NewAppServerL(CApaAppServer*& aAppServer)
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	{
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	aAppServer = new(ELeave) CAknAppServer;
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	}