devicediagnosticsfw/diagpluginbase/src/diagpluginwaitingdialogwrapper.cpp
branchRCL_3
changeset 26 19bba8228ff0
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/devicediagnosticsfw/diagpluginbase/src/diagpluginwaitingdialogwrapper.cpp	Wed Sep 01 12:27:42 2010 +0100
@@ -0,0 +1,120 @@
+/*
+* Copyright (c) 2007 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:  Class definition of CDiagPluginWaitingDialogWrapper
+*
+*/
+
+
+// CLASS DECLARATION
+#include "diagpluginwaitingdialogwrapper.h"
+
+// SYSTEM INCLUDE FILES
+#include <AknDialog.h>                      // CAknDialog
+
+// USER INCLUDE FILES
+#include "diagpluginbase.pan"               // Panic Codes
+
+// LOCAL TYPES
+
+// ======== LOCAL FUNCTIONS ========
+
+// ======== MEMBER FUNCTIONS ========
+
+// ---------------------------------------------------------------------------
+// CDiagPluginWaitingDialogWrapper::NewL
+// ---------------------------------------------------------------------------
+//
+EXPORT_C CDiagPluginWaitingDialogWrapper* CDiagPluginWaitingDialogWrapper::NewL( 
+        CAknDialog* aWaitingDialog )
+    {
+    CleanupStack::PushL( aWaitingDialog );
+    CDiagPluginWaitingDialogWrapper* self = new ( ELeave ) 
+        CDiagPluginWaitingDialogWrapper( aWaitingDialog );
+    CleanupStack::Pop( aWaitingDialog );
+
+    return self;
+    }
+
+// ---------------------------------------------------------------------------
+// CDiagPluginWaitingDialogWrapper::CDiagPluginWaitingDialogWrapper
+// ---------------------------------------------------------------------------
+//
+CDiagPluginWaitingDialogWrapper::CDiagPluginWaitingDialogWrapper( 
+        CAknDialog* aWaitingDialog )
+    :   iWaitingDialog( aWaitingDialog ),
+        iIsObjectDeletedPtr( NULL )
+    {
+    // Dialog must not be NULL
+    __ASSERT_ALWAYS( iWaitingDialog, Panic( EDiagPluginBasePanicBadArgument ) );
+
+    // Coverity Change .....  Dialog must have EEikDialogFlagWait flag set
+    __ASSERT_ALWAYS( (iWaitingDialog->DialogFlags() & EEikDialogFlagWait),
+                     Panic( EDiagPluginBasePanicBadArgument ) );
+    }
+
+// ---------------------------------------------------------------------------
+// CDiagPluginWaitingDialogWrapper::~CDiagPluginWaitingDialogWrapper
+// ---------------------------------------------------------------------------
+//
+EXPORT_C CDiagPluginWaitingDialogWrapper::~CDiagPluginWaitingDialogWrapper()
+    {
+    if( iIsObjectDeletedPtr )
+        {
+        // If this pointer is set, we are still in RunLD().
+        __ASSERT_DEBUG( iWaitingDialog, Panic( EDiagPluginBasePanicInternal ) );
+        
+        *iIsObjectDeletedPtr = ETrue;
+        iIsObjectDeletedPtr = NULL;
+
+        delete iWaitingDialog;
+        iWaitingDialog = NULL;
+        }
+    }
+
+// ---------------------------------------------------------------------------
+// CDiagPluginWaitingDialogWrapper::RunLD
+// ---------------------------------------------------------------------------
+EXPORT_C TBool CDiagPluginWaitingDialogWrapper::RunLD( TInt& aDialogResponse )
+    {
+    // Make sure that this function is not called twice.
+    __ASSERT_ALWAYS( iIsObjectDeletedPtr == NULL,
+        Panic( EDiagPluginBasePanicInvalidState ) );
+
+    TBool isObjectDeleted = EFalse;
+    
+    iIsObjectDeletedPtr = &isObjectDeleted;
+
+    aDialogResponse = iWaitingDialog->RunLD();
+    // Do not access local variable until isObjectDeleted
+    // value is checked first. "this" pointer may be invalid at this pointer.
+
+    if ( isObjectDeleted )
+        {
+        // this class is already deleted. Exit immediately.
+        return EFalse;
+        }
+    else
+        {
+        // iWaitingDialog->RunLD() returned with user response.
+        iIsObjectDeletedPtr = NULL;
+        iWaitingDialog = NULL;
+
+        // Self-destruct as it is a "D" function.
+        delete this;
+        return ETrue;
+        }
+    }
+
+// End of File
+