smartinstaller/common/utils.cpp
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47:3f419852be07 48:364021cecc90
       
     1 /*
       
     2 * Copyright (c) 2010 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:
       
    15 *   Static utility methods
       
    16 */
       
    17 
       
    18 #include <e32std.h>
       
    19 #include <e32debug.h>
       
    20 #include <centralrepository.h>
       
    21 #include "utils.h"
       
    22 
       
    23 const TInt KCenRepBufferSize = 255;
       
    24 const TText KStrComma = ',';
       
    25 const TUint32 KMenuHideApplication = 0x00000008;
       
    26 
       
    27 // Ovi Store launcher UID
       
    28 const TInt KUidOviStoreLauncher = 0x0;
       
    29 // Ovi Store widget UID
       
    30 const TInt KUidOviStoreWidget = 0x0;
       
    31 // Ovi Store downloader UID
       
    32 const TInt KUidOviStoreDownloader = 0x0;
       
    33 // Ovi Store ASServer UID
       
    34 const TInt KUidOviStoreASServer = 0x0;
       
    35 
       
    36 // -----------------------------------------------------------------------------
       
    37 // Check if Ovi Store client is running
       
    38 // @return ETrue, if the process is running
       
    39 // -----------------------------------------------------------------------------
       
    40 //
       
    41 TBool CUtils::OviStoreRunning()
       
    42 	{
       
    43 	TBool running = EFalse;
       
    44 	RArray<TInt> uids( 4 );
       
    45 	uids.Append(KUidOviStoreLauncher);
       
    46 	uids.Append(KUidOviStoreWidget);
       
    47 	uids.Append(KUidOviStoreDownloader);
       
    48 	uids.Append(KUidOviStoreASServer);
       
    49 	if ( CUtils::AreProcessesRunning(uids) != KErrNotFound )
       
    50 		{
       
    51 		running = ETrue;
       
    52 		}
       
    53 	uids.Close();
       
    54 	return running;
       
    55 	}
       
    56 
       
    57 // -----------------------------------------------------------------------------
       
    58 // Checks if the process with given UID is running.
       
    59 // @param aUid UID of the process
       
    60 // @return ETrue, if the process is running
       
    61 // -----------------------------------------------------------------------------
       
    62 //
       
    63 TBool CUtils::IsProcessRunning(const TInt aUid)
       
    64 	{
       
    65 	RArray<TInt> uids;
       
    66 	uids.Append(aUid);
       
    67 	const TBool ret = (AreProcessesRunning(uids) != KErrNotFound);
       
    68 	uids.Close();
       
    69 	return ret;
       
    70 	}
       
    71 
       
    72 // -----------------------------------------------------------------------------
       
    73 // @param aUid UID of the process
       
    74 // @return The index of the first matching UIDwithin the array.
       
    75 //         KErrNotFound, if no matching entry can be found.
       
    76 // -----------------------------------------------------------------------------
       
    77 //
       
    78 TInt CUtils::AreProcessesRunning(const RArray<TInt>& aUids)
       
    79 	{
       
    80 	TInt ret = KErrNotFound;
       
    81 	TFileName res;
       
    82 	TFindProcess find;
       
    83 	//RDebug::Print(_L("Searching. 0x%08x"), &aUids)
       
    84 
       
    85 	while (find.Next(res) == KErrNone)
       
    86 		{
       
    87 		RProcess ph;
       
    88 		ph.Open(res);
       
    89 		const TInt sid = ph.SecureId();
       
    90 		//RDebug::Print(_L("Scanning process: '%S' (0x%08x)"), &res, sid);
       
    91 
       
    92 		if ( (ret = aUids.Find(sid)) != KErrNotFound )
       
    93 			{
       
    94 			//RDebug::Print(_L("   Found process: '%S' %d (0x%08x)"), &res, ret, aUids[ret]);
       
    95 			ph.Close();
       
    96 			break;
       
    97 			}
       
    98 		ret = KErrNotFound;
       
    99 /*
       
   100 		if (ph.SecureId() == aUid)
       
   101 			{
       
   102 			RDebug::Print(_L("   Found process: '%S'"), &res);
       
   103 			ph.Close();
       
   104 			ret = ETrue;
       
   105 			break;
       
   106 			}
       
   107 */
       
   108 		ph.Close();
       
   109 		}
       
   110 
       
   111 	return ret;
       
   112 	}
       
   113 
       
   114 // -----------------------------------------------------------------------------
       
   115 // HideApplicationFromMenu() - Non-leaving version
       
   116 //
       
   117 // @param aUid UID of the application to hide/reveal from the menu
       
   118 // @param aHidden Flag to indicate the application visibility. ETrue = Hide
       
   119 // -----------------------------------------------------------------------------
       
   120 //
       
   121 TInt CUtils::HideApplicationFromMenu(TInt aUid, TBool aHidden)
       
   122 	{
       
   123 	TRAPD( ret, HideApplicationFromMenuL(aUid, aHidden) );
       
   124 	return ret;
       
   125 	}
       
   126 
       
   127 // -----------------------------------------------------------------------------
       
   128 // HideApplicationFromMenuL()
       
   129 //
       
   130 // @param aUid UID of the application to hide/reveal from the menu
       
   131 // @param aHidden Flag to indicate the application visibility. ETrue = Hide
       
   132 // -----------------------------------------------------------------------------
       
   133 //
       
   134 void CUtils::HideApplicationFromMenuL(TInt aUid, TBool aHidden)
       
   135 	{
       
   136 	const TUid KCRUidMenu = { 0x0 };
       
   137 
       
   138 	TBuf<KCenRepBufferSize> keyContent;
       
   139 	TBool updated( EFalse );
       
   140 
       
   141 	CRepository* aAppShellRepository = CRepository::NewLC( KCRUidMenu );
       
   142 	User::LeaveIfError(aAppShellRepository->Get( KMenuHideApplication, keyContent ));
       
   143 
       
   144 	TBuf<8> MenuUid;
       
   145 	UIDText( MenuUid, aUid);
       
   146 	TInt offset = keyContent.FindC( MenuUid );
       
   147 	if ( offset == KErrNotFound && aHidden )
       
   148 		{
       
   149 		__ASSERT_ALWAYS( keyContent.Length() + 9 < KCenRepBufferSize,
       
   150 						 User::Leave( KErrOverflow ) );
       
   151 		if ( keyContent.Length() > 0 )
       
   152 			keyContent.Append( KStrComma );
       
   153 		keyContent.Append( MenuUid );
       
   154 		updated = ETrue;
       
   155 		}
       
   156 	else if ( offset != KErrNotFound && !aHidden )
       
   157 		{
       
   158 		if ( offset == 0 )
       
   159 			{
       
   160 			keyContent.Delete( 0, Min( 9, keyContent.Length() ) );
       
   161 			updated = ETrue;
       
   162 			}
       
   163 		else if ( keyContent[offset - 1] == KStrComma )
       
   164 			{
       
   165 			keyContent.Delete( offset - 1, 9 );
       
   166 			updated = ETrue;
       
   167 			}
       
   168 		else
       
   169 			User::Leave( KErrCorrupt );
       
   170 		}
       
   171 	if ( updated )
       
   172 		User::LeaveIfError(aAppShellRepository->Set( KMenuHideApplication, keyContent ));
       
   173 
       
   174 	CleanupStack::PopAndDestroy(); // aAppShellRepository
       
   175 	}
       
   176 
       
   177 // -----------------------------------------------------------------------------
       
   178 // UIDText - Converts UID specified by aInt to string representation
       
   179 //
       
   180 // @param aUid Descriptor containing the string
       
   181 // @param aInt Int representing the UID
       
   182 // -----------------------------------------------------------------------------
       
   183 //
       
   184 void CUtils::UIDText(TDes& aUid, TInt aInt)
       
   185 	{
       
   186 	TUidName uidName( TUid::Uid( aInt ).Name() );
       
   187 	aUid.Copy( uidName.Mid( 1, KMaxUidName - 2 ) );
       
   188 	aUid.UpperCase();
       
   189 	}