1 /*

     2  * Copyright (c) 2005-2009 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:  Declares USB UI notifiers base class.

    15  *

    16  */

    17 

    18 // INCLUDE FILES

    19 #include <eikenv.h>          // Eikon environment

    20 #include <bautils.h>         // BAFL utils (for language file)

    21 #include <StringLoader.h>    // Localisation stringloader

    22 #include <centralrepository.h> 

    23 #include <coreapplicationuisdomainpskeys.h>

    24 #include <data_caging_path_literals.hrh> 

    25 #include <featmgr.h>

    26 #include <AknNotiferAppServerApplication.h>

    27 

    28 #include "usbnotifier.h"     // Own class 

    29 #include "usbuinotifdebug.h"

    30 #include "aknkeylock.h" //RAknKeyLock

    31 // CONSTANTS

    32 

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

    34 

    35 // ----------------------------------------------------------------------------

    36 // CUSBUINotifierBase::CBTNotifierBase

    37 // C++ default constructor can NOT contain any code, that

    38 // might leave. Sets the AOs priority and puts

    39 // itself to the active scheduler stack.

    40 // ----------------------------------------------------------------------------

    41 //

    42 CUSBUINotifierBase::CUSBUINotifierBase() :

    43     CActive( EPriorityStandard )

    44     {

    45         FLOG(_L("[USBUINOTIF]\t CUSBUINotifierBase::Default constructor()"));

    46     CActiveScheduler::Add( this );

    47     }

    48 

    49 // ----------------------------------------------------------------------------

    50 // CUSBUINotifierBase::ConstructL

    51 // Symbian 2nd phase constructor can leave.

    52 // Create registry object and open resource file.

    53 // ----------------------------------------------------------------------------

    54 //

    55 void CUSBUINotifierBase::ConstructL()

    56     {

    57     iEikEnv = CEikonEnv::Static();

    58     iAppsKeyBlocked = EFalse;

    59     iKeylockChanged = EFalse;

    60 

    61     FLOG(_L("[USBUINOTIF]\t CUSBUINotifierBase::ConstructL()"));

    62     TFileName filename;

    63 

    64     const TDriveNumber KStoreDrive = EDriveZ;

    65     TDriveUnit driveUnit( KStoreDrive );

    66     TDriveName drive = driveUnit.Name();

    67     filename.Insert( 0, drive );

    68 

    69     filename += KDC_RESOURCE_FILES_DIR; // From data_caging_path_literals.hrh

    70     filename += KResourceFileName;

    71     BaflUtils::NearestLanguageFile( iEikEnv->FsSession(), filename );

    72     iResourceFileFlag = iEikEnv->AddResourceFileL( filename );

    73 

    74     FeatureManager::InitializeLibL();

    75     iCoverDisplaySupported = FeatureManager::FeatureSupported(

    76             KFeatureIdCoverDisplay );

    77     FeatureManager::UnInitializeLib();

    78 

    79     FLOG(_L("[USBUINOTIF]\t CUSBUINotifierBase::ConstructL() completed"));

    80     }

    81 

    82 // ----------------------------------------------------------------------------

    83 // Destructor.

    84 // ----------------------------------------------------------------------------

    85 //

    86 CUSBUINotifierBase::~CUSBUINotifierBase()

    87     {

    88     FLOG(_L("[USBUINOTIF]\t CUSBUINotifierBase::Destructor"));

    89     //Make sure that the request is completed. Note that inside the destructor,

    90     //this virtual function call is to the local CUSBUINotifierBase::Cancel, 

    91     //not to any possibly derived class implementation. 

    92     Cancel();

    93     iEikEnv->DeleteResourceFile( iResourceFileFlag );

    94 

    95     // Complete the RMessage2 if needed

    96     //

    97     CompleteMessage( KErrDied );

    98 

    99     // Activate apps -key again (if not previously activated yet)

   100     SuppressAppSwitching( EFalse );

   101 

   102     // Restore the keylock if not restored before (caused by Leave).

   103     // If the Keylock is restored already, the function does nothing.

   104     RestoreKeylock();

   105 

   106     FLOG(_L("[USBUINOTIF]\t CUSBUINotifierBase::Destructor completed"));

   107     }

   108 

   109 // ----------------------------------------------------------------------------

   110 // CUSBUINotifierBase::Release

   111 // Release itself. Call to destructor.

   112 // ----------------------------------------------------------------------------

   113 //

   114 void CUSBUINotifierBase::Release()

   115     {

   116     FLOG(_L("[USBUINOTIF]\t CUSBUINotifierBase::Release()"));

   117     delete this;

   118     }

   119 

   120 // ----------------------------------------------------------------------------

   121 // CUSBUINotifierBase::Info

   122 // Return registered information.

   123 // ----------------------------------------------------------------------------

   124 //

   125 CUSBUINotifierBase::TNotifierInfo CUSBUINotifierBase::Info() const

   126     {

   127     FTRACE(FPrint(_L("[USBUINOTIF]\t CUSBUINotifierBase::Info() id %d channel %d priority %d"), iInfo.iUid, iInfo.iChannel, iInfo.iPriority ));

   128     return iInfo;

   129     }

   130 

   131 // ----------------------------------------------------------------------------

   132 // CUSBUINotifierBase::StartL

   133 // Synchronic notifier launch. Does nothing

   134 // ----------------------------------------------------------------------------

   135 //

   136 TPtrC8 CUSBUINotifierBase::StartL(const TDesC8& /*aBuffer*/)

   137     {

   138     FLOG(_L("[USBUINOTIF]\t CUSBUINotifierBase::StartL()"));

   139 

   140     TPtrC8 ret( KNullDesC8 );

   141     return (ret);

   142     }

   143 

   144 // ----------------------------------------------------------------------------

   145 // CUSBUINotifierBase::StartL

   146 // Asynchronic notifier launch.

   147 // ----------------------------------------------------------------------------

   148 //

   149 void CUSBUINotifierBase::StartL(const TDesC8& aBuffer, TInt aReplySlot,

   150         const RMessagePtr2& aMessage)

   151     {

   152     FLOG(_L("[USBUINOTIF]\t CUSBUINotifierBase::StartL()"));

   153     TRAPD( err, GetParamsL( aBuffer, aReplySlot, aMessage ));

   154     if (err)

   155         {

   156         aMessage.Complete( err );

   157         iNeedToCompleteMessage = EFalse;

   158         User::Leave( err );

   159         }

   160     FLOG(_L("[USBUINOTIF]\t CUSBUINotifierBase::StartL completed()"));

   161     }

   162 

   163 // ----------------------------------------------------------------------------

   164 // CUSBUINotifierBase::Cancel

   165 // Cancelling method.

   166 // ----------------------------------------------------------------------------

   167 //

   168 void CUSBUINotifierBase::Cancel()

   169     {

   170     FLOG(_L("[USBUINOTIF]\t CUSBUINotifierBase::Cancel()"));

   171     CActive::Cancel();

   172     FLOG(_L("[USBUINOTIF]\t CUSBUINotifierBase::Cancel completed()"));

   173     }

   174 

   175 // ----------------------------------------------------------------------------

   176 // CUSBUINotifierBase::UpdateL

   177 // Notifier update. Not supported.

   178 // ----------------------------------------------------------------------------

   179 //

   180 TPtrC8 CUSBUINotifierBase::UpdateL(const TDesC8& /*aBuffer*/)

   181     {

   182     TPtrC8 ret( KNullDesC8 );

   183     return (ret);

   184     }

   185 

   186 // ----------------------------------------------------------------------------

   187 // CUSBUINotifierBase::DoCancel

   188 // This method will be called by framework (CActive)

   189 // if active object is still active.

   190 // Does nothing here.

   191 // ----------------------------------------------------------------------------

   192 //

   193 void CUSBUINotifierBase::DoCancel()

   194     {

   195     FLOG(_L("[USBUINOTIF]\t CUSBUINotifierBase::DoCancel()"));

   196     }

   197 

   198 // ----------------------------------------------------------------------------

   199 // CUSBUINotifierBase::RunError

   200 // This method is called if any leaving has been occured

   201 // during RunL. Optional method for CActive derived objects.

   202 // ----------------------------------------------------------------------------

   203 //

   204 TInt CUSBUINotifierBase::RunError(TInt aError)

   205     {

   206     FLOG(_L("[USBUINOTIF]\t CUSBUINotifierBase::RunError()"));

   207 

   208     // Activate apps -key again (if not previously activated yet)

   209     //

   210     SuppressAppSwitching( EFalse );

   211 

   212     // Write error message to caller

   213     //

   214     CompleteMessage( aError );

   215 

   216     FLOG(_L("[USBUINOTIF]\t CUSBUINotifierBase::RunError() completed"));

   217 

   218     return aError;

   219     }

   220 

   221 // ----------------------------------------------------------------------------

   222 // CUSBUINotifierBase::SuppressAppSwitching

   223 // 

   224 // ----------------------------------------------------------------------------

   225 //

   226 void CUSBUINotifierBase::SuppressAppSwitching(TBool aEnable)

   227     {

   228     FTRACE(FPrint(_L("[USBUINOTIF]\t CUSBUINotifierBase::SuppressAppSwitching() %d"), aEnable));

   229 

   230     if (iAppsKeyBlocked != aEnable)

   231         {

   232         TInt err = iAknServer.ConnectAndSendAppsKeySuppress( aEnable ); // error is stored only for logging purposes

   233         iAppsKeyBlocked = aEnable;

   234         FTRACE(FPrint(_L("[USBUINOTIF]\t CUSBUINotifierBase::SuppressAppSwitching() ConnectAndSendAppsKeySuppress returned %d"), err ));

   235         }

   236 

   237     if (!iAppsKeyBlocked)

   238         {

   239         iAknServer.Close(); // close the connection once we have re-enabled swithcing

   240         }

   241     FLOG(_L("[USBUINOTIF]\t CUSBUINotifierBase::SuppressAppSwitching() completed"));

   242     }

   243 

   244 // ----------------------------------------------------------------------------

   245 // CUSBUINotifierBase::CompleteMessage

   246 // Check if message needs to be completed and complete it. 

   247 // ----------------------------------------------------------------------------

   248 //

   249 void CUSBUINotifierBase::CompleteMessage(TInt aReason)

   250     {

   251     FLOG(_L("[USBUINOTIF]\t CUSBUINotifierBase::CompleteMessage()"));

   252     if (iNeedToCompleteMessage)

   253         {

   254         iMessage.Complete( aReason );

   255         iNeedToCompleteMessage = EFalse;

   256         }

   257     iReplySlot = 0;

   258     FLOG(_L("[USBUINOTIF]\t CUSBUINotifierBase::CompleteMessage() completed"));

   259     }

   260 

   261 // ----------------------------------------------------------------------------

   262 // CUSBUINotifierBase::DisableKeylock

   263 // ----------------------------------------------------------------------------

   264 // Turn off the keyguard if it was on.

   265 //

   266 void CUSBUINotifierBase::DisableKeylock()

   267     {

   268     FLOG(_L("[USBUINOTIF]\t CUSBUINotifierBase::DisableKeylock()"));

   269     RAknKeylock2 keylock;

   270     iKeylockChanged = EFalse;

   271     if (KErrNone == keylock.Connect())

   272         {

   273         if (keylock.IsKeyLockEnabled()) //Check and save the keylock status

   274             {

   275             keylock.DisableWithoutNote();// Unlock

   276             iKeylockChanged = ETrue;

   277             }

   278         keylock.Close();

   279         }

   280     else

   281         {

   282         FLOG( _L( "[USBUINOTIF]\t CUSBUINotifierBase::DisableKeylock() fail caused by RAknKeylock2::Connect()") );

   283         }

   284 

   285     FLOG(_L("[USBUINOTIF]\t CUSBUINotifierBase::DisableKeylock() completed"));

   286     }

   287 

   288 // ----------------------------------------------------------------------------

   289 // CUSBUINotifierBase::RestoreKeylock

   290 // ----------------------------------------------------------------------------

   291 // Restore the keyguard on.

   292 //

   293 void CUSBUINotifierBase::RestoreKeylock()

   294     {

   295     FLOG(_L("[USBUINOTIF]\t CUSBUINotifierBase::RestoreKeylock()"));

   296     if (iKeylockChanged)

   297         {

   298         FLOG(_L("[USBUINOTIF]\t CUSBUINotifierBase::RestoreKeylock(): iKeylockChanged true"));

   299         RAknKeylock2 keylock;

   300         FLOG(_L("[USBUINOTIF]\t CUSBUINotifierBase::RestoreKeylock(): RAknKeyLock2 initialized"));

   301         if (KErrNone == keylock.Connect())

   302             {

   303             FLOG(_L("[USBUINOTIF]\t CUSBUINotifierBase::RestoreKeylock(): RAknKeyLock2::Connect() complete"));

   304             keylock.EnableWithoutNote();// Lock back

   305             FLOG(_L("[USBUINOTIF]\t CUSBUINotifierBase::RestoreKeylock(): RAknKeyLock2::EnableWithoutNote() complete"));

   306             keylock.Close();

   307             FLOG(_L("[USBUINOTIF]\t CUSBUINotifierBase::RestoreKeylock(): RAknKeyLock2::Close() complete"));

   308             iKeylockChanged = EFalse;

   309             }

   310         else

   311             {

   312             FLOG( _L( "[USBUINOTIF]\t CUSBUINotifierBase::RestoreKeylock() fail caused by RAknKeylock2::Connect()") );

   313             }

   314         }

   315     FLOG(_L("[USBUINOTIF]\t CUSBUINotifierBase::RestoreKeylock() completed"));

   316     }

   317 

   318 // End of File