--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/contextframework/cfw/src/basicoperationsplugin/cfifclause.cpp	Tue Feb 02 10:12:00 2010 +0200
@@ -0,0 +1,315 @@
+/*
+* Copyright (c) 2002-2008 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:  CCFIfClause class implementation.
+*
+*/
+
+
+
+// INCLUDE FILES
+#include "cfifclause.h"
+#include "cfscriptaction.h"
+#include "cfbasicoptrace.h"
+
+#include <gmxmlnode.h>
+
+// CONSTANTS
+_LIT( KScriptIfName16,        "if"        );
+_LIT( KScriptActionsName16,   "actions"   );
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// -----------------------------------------------------------------------------
+// CCFIfClause::CCFIfClause
+// C++ default constructor can NOT contain any code, that might leave.
+// -----------------------------------------------------------------------------
+//
+CCFIfClause::CCFIfClause( MCFOperationServices& aServices,
+    CCFOperationNode* aParent )
+    :   CCFClauseNode( aServices, aParent )
+    {
+    FUNC_LOG;
+    }
+
+// -----------------------------------------------------------------------------
+// CCFIfClause::ConstructL
+// Symbian 2nd phase constructor can leave.
+// -----------------------------------------------------------------------------
+//
+void CCFIfClause::ConstructL()
+    {
+    FUNC_LOG;
+    }
+
+// -----------------------------------------------------------------------------
+// CCFIfClause::NewL
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+//
+CCFIfClause* CCFIfClause::NewL( MCFOperationServices& aServices,
+    CCFOperationNode* aParent )
+    {
+    FUNC_LOG;
+
+    CCFIfClause* self = NewLC( aServices, aParent );
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+// -----------------------------------------------------------------------------
+// CCFIfClause::NewLC
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+//
+CCFIfClause* CCFIfClause::NewLC( MCFOperationServices& aServices,
+    CCFOperationNode* aParent )
+    {
+    FUNC_LOG;
+
+    CCFIfClause* self = new( ELeave ) CCFIfClause( aServices, aParent );
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    return self;
+    }
+
+// -----------------------------------------------------------------------------
+// CCFIfClause::ParseL
+// Construction with parsing from a DOM node.
+// -----------------------------------------------------------------------------
+//
+CCFIfClause* CCFIfClause::ParseL( MCFOperationServices& aServices,
+    CCFOperationNode* aParent,
+    CMDXMLNode& aNode )
+    {
+    FUNC_LOG;
+
+    if ( aNode.NodeName().CompareF( KScriptIfName16 ) != 0 )
+        {
+        return NULL; // Cannot create if clause from the given node.
+        }
+
+    CCFIfClause* self = NewLC( aServices, aParent );    // CLEANUP<< self
+
+    // Parse children.
+    TBool unsupportedNode( EFalse );
+    TBool actionsParsed( EFalse );
+    CMDXMLNode* child = aNode.FirstChild();
+    while ( child )
+        {
+        if ( child->NodeType() == CMDXMLNode::EElementNode )
+            {
+            if ( child->NodeName().CompareF( KScriptActionsName16 ) == 0 )
+                {
+                if ( actionsParsed )
+                    {
+                    INFO( "CCFIfClause::ParseL - Redefinition not allowed, actions already parsed" );
+                    unsupportedNode = ETrue;
+                    break;
+                    }
+                self->ParseActionsL( *child, self->iActions );
+                actionsParsed = ETrue;
+                }
+            else
+                {
+                if ( self->iChild )
+                    {
+                    TPtrC nodeName( child->NodeName() );
+                    INFO_1( "CCFIfClause::ParseL - One child operation is allowed. [%S] is not supported",
+                            &nodeName );
+                    unsupportedNode = ETrue; // Already parsed the child.
+                    break;
+                    }
+                CCFOperationNode* op = self->iServices.ParseL( self, *child );
+                if ( op )
+                    {
+                    self->iChild = op;
+                    }
+                else
+                    {
+                    TPtrC nodeName( child->NodeName() );
+                    INFO_1( "CCFIfClause::ParseL - Unsupported node [%S]",
+                            &nodeName );
+                    unsupportedNode = ETrue;
+                    break;
+                    }
+                }
+            }
+        else if ( child->NodeType() != CMDXMLNode::ECommentNode )
+            {
+            TPtrC nodeName( child->NodeName() );
+            INFO_1( "CCFIfClause::ParseL - Unsupported node [%S]",
+                    &nodeName );
+            unsupportedNode = ETrue;
+            break;
+            }
+        child = child->NextSibling();
+        }
+
+    CleanupStack::Pop( self );                          // CLEANUP>> self
+    if ( !self->iChild || unsupportedNode )
+        {
+        INFO( "CCFIfClause::ParseL - No child operation defined or unsupported node" );
+        delete self; // Discard unsupported if clause.
+        self = NULL;
+        }
+
+    CREATE_DOM_INFO( self, aNode );
+
+    return self;
+    }
+
+
+// Destructor
+CCFIfClause::~CCFIfClause()
+    {
+    FUNC_LOG;
+
+    delete iChild;
+    iActions.ResetAndDestroy();
+    }
+
+
+// -----------------------------------------------------------------------------
+// CCFIfClause::FireActionsL
+// -----------------------------------------------------------------------------
+//
+void CCFIfClause::FireActionsL()
+    {
+    FUNC_LOG;
+
+    ACTION_INFO_2( "Firing [%d] IF-actions for script ID=[%d]",
+            iActions.Count(),
+            iServices.ScriptId() );
+
+    for ( TInt i = 0; i < iActions.Count(); ++i )
+        {
+        iActions[ i ]->ActL();
+        }
+    }
+
+// ---------------------------------------------------------------------------
+// CCFIfClause::ActivateL
+// ---------------------------------------------------------------------------
+//
+void CCFIfClause::ActivateL()
+    {
+    FUNC_LOG;
+
+    if ( iChild )
+        {
+        iChild->ActivateL();
+        }
+    }
+
+// ---------------------------------------------------------------------------
+// CCFIfClause::Deactivate
+// ---------------------------------------------------------------------------
+//
+void CCFIfClause::Deactivate()
+    {
+    FUNC_LOG;
+
+    if ( iChild )
+        {
+        iChild->Deactivate();
+        }
+    }
+
+// ---------------------------------------------------------------------------
+// CCFIfClause::CheckSecurity
+// ---------------------------------------------------------------------------
+//
+TInt CCFIfClause::CheckSecurity()
+    {
+    FUNC_LOG;
+
+    TInt err( KErrNone );
+    // Check security for context subscriptions.
+    if ( iChild )
+        {
+        err = iChild->CheckSecurity();
+        if ( err != KErrNone )
+            {
+            ERROR( err, "CCFIfClause::CheckSecurity - Context read security check failed!" );
+            return err;
+            }
+        }
+
+    // Check security for actions.
+    for ( TInt i = 0; i < iActions.Count(); ++i )
+        {
+        TSecurityPolicy securityPolicy;
+        TInt err = iActions[ i ]->GetSecurityPolicy( securityPolicy );
+        if ( err != KErrNone )
+            {
+            ERROR( err, "CCFIfClause::CheckSecurity - Getting action security policy failed!" );
+            return err;
+            }
+
+        err = iServices.CheckScriptOwnerAccess( securityPolicy );
+        if ( err != KErrNone )
+            {
+            ERROR( err, "CCFIfClause::CheckSecurity - Checking action security policy failed!" );
+            return err;
+            }
+        }
+
+    return KErrNone;
+    }
+
+// -----------------------------------------------------------------------------
+// CCFIfClause::Evaluate
+// -----------------------------------------------------------------------------
+//
+void CCFIfClause::Evaluate()
+    {
+    FUNC_LOG;
+
+    DOM_INFO( "CCFIfClause::Evaluate" );
+
+    if ( iChild )
+        {
+        // If clause has a root condition.
+        TCFConditionValue newValue = iChild->Value();
+
+        if ( newValue != Value() )
+            {
+            INFO_1( "CCFIfClause::Evaluate - Value changed to (-1=undefined, 0=false, 1=true): %d", newValue );
+
+            iValue = newValue;
+            if ( iParent )
+                {
+                iParent->Evaluate();
+                }
+            }
+        else
+            {
+            INFO_1( "CCFIfClause::Evaluate - Value still (-1=undefined, 0=false, 1=true): %d", newValue );
+            }
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// CCFIfClause::Cleanup
+// -----------------------------------------------------------------------------
+//
+void CCFIfClause::Cleanup()
+    {
+    FUNC_LOG;
+
+    if ( iChild )
+        {
+        iChild->Cleanup();
+        }
+    }