--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/contextframework/cfw/inc/basicoperationsplugin/cfclausenode.h	Tue Feb 02 10:12:00 2010 +0200
@@ -0,0 +1,166 @@
+/*
+* Copyright (c) 2007-2008 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:  CCFClauseNode class declaration.
+*
+*/
+
+
+
+#ifndef C_CFCLAUSENODE_H
+#define C_CFCLAUSENODE_H
+
+// INCLUDES
+#include <e32base.h>
+#include <cfkeyvaluepair.h>
+#include <cfoperationnode.h>
+
+// FORWARD DECLARATIONS
+class CMDXMLNode;
+class CCFScriptAction;
+class CCFContextSourceCommandParameter;
+
+// CLASS DECLARATION
+
+/**
+*  This class implements abstract clause node as a base class for XML clause
+*  nodes (like if, elseif, and else) on Context Framework Scripts.
+*
+*  @lib CFScriptEngine
+*  @since S60 v5.0
+*/
+NONSHARABLE_CLASS( CCFClauseNode ): public CCFOperationNode
+    {
+public: // Constructors and destructor
+
+    /**
+    * Destructor.
+    */
+    virtual ~CCFClauseNode();
+
+public: // New functions
+
+    /**
+    * Fires actions of the node.
+    * @return None.
+    */
+    virtual void FireActionsL() = 0;
+
+public: // Functions from CCFOperationNode
+
+    /**
+    * Activates this node, e.g. subscribes contexts or restores values
+    * from persistent storage. Depending on the goal of the node, it should
+    * pass the activate call to its' children.
+    */
+    virtual void ActivateL() = 0;
+
+    /**
+    * Deactivates this node, e.g. removes subscriptions. Depending on the
+    * goal of the node, it should pass the deactivate call to its' children.
+    */
+    virtual void Deactivate() = 0;
+
+    /**
+    * Asks this node to check its security (via services interface). For
+    * example, the security of contexts to be subscribed or actions to be
+    * performed.
+    * @return KErrNone if security check passed, otherwise any of the system
+    *   wide error codes.
+    */
+    virtual TInt CheckSecurity() = 0;
+
+    /**
+    * Called by child node, to ask the parent to re-evaluate its value,
+    * since the child's value has changed.
+    * @return None.
+    */
+    virtual void Evaluate() = 0;
+
+protected:
+
+    /**
+    * C++ default constructor.
+    * @param aServices is the operation services interface for nodes.
+    * @param aParent is parent node for this node. The ownership of the parent
+    *   is not transffered.
+    */
+    CCFClauseNode( MCFOperationServices& aServices, CCFOperationNode* aParent );
+
+protected: // New functions
+
+    /**
+    * Parses actions from an xml node.
+    * @param aNode is the node to be parsed, root action node.
+    * @param aActions is the array where parsed actions are stored.
+    * @return None, may leave with any system wide error code.
+    */
+    void ParseActionsL( CMDXMLNode& aNode,
+            RPointerArray< CCFScriptAction >& aActions );
+
+private: // New functions
+
+    /**
+    * Parses a notify action from an xml node and returns a pointer to
+    * CCFScriptAction instance.
+    * @param aNode is the node to be parsed.
+    * @return a ptr to CCFScriptAction instance parsed from the given node,
+    *   Note that the ownership is transferred. Leaves with code
+    *   KErrNotSupported if the node cannot be parsed.
+    */
+    CCFScriptAction* ParseNotifyActionL( CMDXMLNode& aNode );
+
+    /**
+    * Parses a publish context action from an xml node and returns a pointer to
+    * CCFScriptAction instance.
+    * @param aNode is the node to be parsed.
+    * @return a ptr to CCFScriptAction instance parsed from the given node,
+    *   Note that the ownership is transferred. Leaves with code
+    *   KErrNotSupported if the node cannot be parsed.
+    */
+    CCFScriptAction* ParsePublishContextActionL( CMDXMLNode& aNode );
+
+    /**
+    * Parses a source command action from an xml node and returns a pointer to
+    * CCFScriptAction instance.
+    * @param aNode is the node to be parsed.
+    * @return a ptr to CCFScriptAction instance parsed from the given node,
+    *   Note that the ownership is transferred. Leaves with code
+    *   KErrNotSupported if the node cannot be parsed.
+    */
+    CCFScriptAction* ParseSourceCommandActionL( CMDXMLNode& aNode );
+
+    /**
+    * Gets attributes from an xml node as key value pairs.
+    * @param aNode is the node to be parsed for attributes.
+    * @param aAttributes is the array for the attributes as key value pairs.
+    * @return None.
+    */
+    void GetAttributesL( CMDXMLNode& aNode, RKeyValueArray& aAttributes );
+
+    /**
+    * Gets nested source command parameters containing optional nested
+    * parameters (via recursive calls to itself) from an xml node.
+    * @param aNode is the node to be parsed for the parameter.
+    * @param aParent is the parent parameter.
+    * @return None.
+    */
+    void GetNestedSourceCommandParametersL( CMDXMLNode& aNode,
+            CCFContextSourceCommandParameter& aParent );
+
+private: // Data
+
+    };
+
+
+#endif // C_CFCLAUSENODE_H