diff -r 000000000000 -r 72b543305e3a email/mail/EditorSrc/cmsgmailbaseop.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/email/mail/EditorSrc/cmsgmailbaseop.cpp	Thu Dec 17 08:44:11 2009 +0200
@@ -0,0 +1,293 @@
+/*
+* Copyright (c) 2002-2007 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:  MMsgMailOpObserver
+*
+*/
+
+
+
+// INCLUDE FILES
+#include "cmsgmailbaseop.h"
+#include "mmsgmailappuiopdelegate.h"
+#include "MailLog.h"
+#include "MsgMailEditorDocument.h"
+#include <StringLoader.h>
+#include <eikenv.h>
+#include <MsgEditorAppUi.rsg>
+#include <MsgMailEditor.rsg>
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// -----------------------------------------------------------------------------
+// CMsgMailBaseOp::CMsgMailBaseOp
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// -----------------------------------------------------------------------------
+//
+CMsgMailBaseOp::CMsgMailBaseOp(
+    CMsgMailEditorDocument& aDocument )
+    : CActive( CActive::EPriorityStandard ),
+      iDocument( aDocument ),
+      iState( EIdleState ),
+      iWaitingError( KMaxTInt )
+    {
+    CActiveScheduler::Add( this );
+    }
+
+// Destructor
+CMsgMailBaseOp::~CMsgMailBaseOp()
+    {
+    LOG( "CMsgMailBaseOp::~CMsgMailBaseOp" );
+    }
+
+// -----------------------------------------------------------------------------
+// CMsgMailBaseOp::DoCancel
+// -----------------------------------------------------------------------------
+//
+void CMsgMailBaseOp::DoCancel()
+    {
+    LOG1( "CMsgMailBaseOp::DoCancel @ iState:%d", iState );
+    HandleOperationCancel(); // let subclass cancel outstanding request
+    CompleteOperation( KErrCancel );
+    }
+    
+// -----------------------------------------------------------------------------
+// CMsgMailBaseOp::RunL
+// -----------------------------------------------------------------------------
+//
+void CMsgMailBaseOp::RunL()
+    {
+    LOG1( "CMsgMailBaseOp::RunL @ iState:%d", iState );
+    TInt completionCode = iStatus.Int();
+    if ( completionCode != KErrNone )
+        { // entering this branch means that latest request (iteration) was
+          // completed with an error code
+        LOG1( "CMsgMailBaseOp::RunL, completed with error: %d",
+              completionCode );
+        if ( !HandleStateActionError( completionCode ) )
+            { // error wasn't handled -> complete operation
+            LOG( "CMsgMailBaseOp::RunL, error wasn't handled -> stopping" );
+            CompleteOperation( completionCode );
+            return;
+            }        
+        }
+
+    if( iWaitingError <= KErrNone && 
+        iState == EIdleState )
+        {
+        // Wait note was dismissed and we can complete the operation.
+        LOG1( "CMsgMailBaseOp::RunL, wait note dismissed -> operation done: %d", 
+            iWaitingError );
+        NotifyObservers( iWaitingError );
+        }
+    else
+        {
+        // Start handling next state
+        SetNextState();
+        
+        if ( iState == EIdleState )
+            {
+            CompleteOperation( KErrNone );
+            }
+        else
+            {
+            HandleStateActionL(); // call subclass to handle the action
+            }
+        }
+    }
+    
+// -----------------------------------------------------------------------------
+// CMsgMailBaseOp::RunError
+// -----------------------------------------------------------------------------
+//
+TInt CMsgMailBaseOp::RunError( TInt aError )
+    {   
+    LOG2( "CMsgMailBaseOp::RunError @ iState: %d, aError:%d", iState, aError );
+
+    // Usually we must return KErrNone, but with KLeaveExit,KErrDiskFull and KErrNoMemory
+    // we must return error code.  
+    // We have to return KLeaveExit to get appui deleted. We also don't want
+    // to notify observer anymore in that case.
+    // KErrDiskFull and KErrNoMemory are returned because otherwise error note is not shown.
+    if ( aError == KLeaveExit )
+        {        
+        LOG1("ERROR %d", aError);
+        return aError;
+        }
+    else if(aError == KErrDiskFull || aError == KErrNoMemory)
+        {
+        LOG1("ERROR KErrDiskFull or KErrNoMemory: %d", aError);
+        CompleteOperation( KErrCancel );
+        return aError;
+        }    
+    else if ( HandleStateActionError( aError ) )
+        { // error was handled -> we can continue with next step
+        LOG( "CMsgMailBaseOp::RunError, error was handled" );
+        return KErrNone;
+        }
+    else
+        { // error wasn't handled -> complete operation
+        LOG( "CMsgMailBaseOp::RunError, error wasn't handled -> stopping" );
+        CompleteOperation( aError );
+        return KErrNone;
+        }
+    }
+
+
+// -----------------------------------------------------------------------------
+// CMsgMailBaseOp::DialogDismissedL
+// -----------------------------------------------------------------------------
+//    
+void CMsgMailBaseOp::DialogDismissedL( TInt /*aButtonId*/ )
+    {
+    LOG( "CMsgMailBaseOp::DialogDismissedL" );    
+    TRequestStatus* status = &iStatus;
+    User::RequestComplete( status, KErrNone );
+    SetActive();
+    }
+
+// -----------------------------------------------------------------------------
+// CMsgMailBaseOp::HandleStateActionError
+// -----------------------------------------------------------------------------
+//    
+TBool CMsgMailBaseOp::HandleStateActionError( TInt /*aError*/ )
+    {
+    // By default errors are not handled or tolerated
+    return EFalse;
+    }
+
+// -----------------------------------------------------------------------------
+// CMsgMailBaseOp::StartOp
+// -----------------------------------------------------------------------------
+//    
+void CMsgMailBaseOp::StartOp( MMsgMailOpObserver& aObserver )
+    {
+    LOG( "CMsgMailBaseOp::StartOp" );
+    Cancel();
+    ASSERT( iState == EIdleState );
+    iObserver = &( aObserver );
+    // start iterating through operation states
+    CompleteStateAction();    
+    }
+
+// -----------------------------------------------------------------------------
+// CMsgMailBaseOp::StartOp
+// -----------------------------------------------------------------------------
+//    
+void CMsgMailBaseOp::StartOp( TRequestStatus& aStatus )
+    {
+    LOG( "CMsgMailBaseOp::StartOp" );
+    Cancel();
+    ASSERT( iState == EIdleState );
+    iExtRequestStatus = &( aStatus );
+    *iExtRequestStatus = KRequestPending;
+    // start iterating through operation states
+    CompleteStateAction();    
+    }
+
+// -----------------------------------------------------------------------------
+// CMsgMailBaseOp::CompleteStateAction
+// -----------------------------------------------------------------------------
+//    
+void CMsgMailBaseOp::CompleteStateAction( TInt aError )
+    {
+    LOG1( "CMsgMailBaseOp::CompleteStateAction @ aError:%d", aError );
+    TRequestStatus* status = &iStatus;
+    User::RequestComplete( status, aError );         
+    SetActive();
+    }
+
+// -----------------------------------------------------------------------------
+// CMsgMailBaseOp::CompleteOperation
+// -----------------------------------------------------------------------------
+//    
+void CMsgMailBaseOp::CompleteOperation( TInt aError )
+    {
+    LOG1( "CMsgMailBaseOp::CompleteOperation @ aError:%d", aError );
+    iState = EIdleState;
+    StopWaitNote(); // not necessarily started
+    
+    if( iWaitDialog )
+        {
+        // wait note is still active. we have to wait for it before 
+        // completing the operation.
+        iWaitDialog->SetCallback( this );
+        iWaitingError = aError;
+        }
+    else
+        {
+        // Nothing to wait, we can complete now.
+        NotifyObservers( aError );
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// CMsgMailBaseOp::NotifyObservers
+// -----------------------------------------------------------------------------
+//    
+void CMsgMailBaseOp::NotifyObservers( TInt aError )
+    {
+    LOG1( "CMsgMailBaseOp::NotifyObservers @ aError:%d", aError );
+    if ( iObserver )
+        {        
+        iObserver->HandleOpCompleted( *this, aError );
+        iObserver =  NULL; // mustn't reuse observer
+        }
+    if ( iExtRequestStatus )
+        {
+        LOG( "NotifyObservers, completing external request" );
+        ASSERT( iExtRequestStatus );
+        User::RequestComplete( iExtRequestStatus, aError );
+        iExtRequestStatus = NULL; // mustn't reuse request status
+        }
+    }
+
+// ----------------------------------------------------------------------------
+// CMsgMailBaseOp::StartWaitNoteL
+// ----------------------------------------------------------------------------
+//
+void CMsgMailBaseOp::StartWaitNoteL(
+    TInt aTextResourceId,
+    TBool aDelayOff,
+    TInt aResouceID )
+    {
+    LOG( "CMsgMailBaseOp::StartWaitNoteL" );
+    StopWaitNote();
+    iWaitDialog = new( ELeave ) CAknWaitDialog(
+        reinterpret_cast<CEikDialog**>( &iWaitDialog ), aDelayOff );
+    iWaitDialog->PrepareLC( aResouceID );
+    HBufC* text = StringLoader::LoadLC( aTextResourceId, CEikonEnv::Static() );		// CSI: 27 # Must be used because of 
+    																				// iEikEnv is not accessible.
+    iWaitDialog->SetTextL( *text );
+    CleanupStack::PopAndDestroy( text ); // text    
+
+	// safe to call LD even as a member variable, since sets itself to NULL when deleting
+    iWaitDialog->RunLD(); // CSI: 50 # see comment above
+    }
+  
+// ----------------------------------------------------------------------------
+// CMsgMailBaseOp::StopWaitNote
+// ----------------------------------------------------------------------------
+//  
+void CMsgMailBaseOp::StopWaitNote()
+    {
+    LOG( "CMsgMailBaseOp::StopWaitNote" );
+    if ( iWaitDialog )
+        {
+        TRAP_IGNORE( iWaitDialog->ProcessFinishedL() );
+        LOG1( "StopWaitNote - process finished @ iWaitDialog:%x",  iWaitDialog );
+        }
+    }
+    
+// End Of File