--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vtuis/videotelui/inc/commands/cvtuicmdcontext.h	Mon Nov 23 14:47:47 2009 +0200
@@ -0,0 +1,147 @@
+/*
+* 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:  Command context base class definition.
+*
+*/
+
+
+#ifndef C_VTUICMDCONTEXT_H
+#define C_VTUICMDCONTEXT_H
+
+#include <e32base.h>
+
+#include "tvtuicmdcontexttype.h"
+
+class CVtUiCmdValidatorBase;
+class CVtUiCmdValidationActionBase;
+class MVtUiCommandManager;
+class CVtUiCmdCustomValidationActionBase;
+
+/**
+ *  CVtUiCmdContext
+ *
+ *  Command context base class. This class defines context in which commands
+ *  will be validated.
+ *
+ *  @since S60 v3.2
+ */
+NONSHARABLE_CLASS( CVtUiCmdContext ) : public CBase
+    {
+
+public: // public methods
+
+    /**
+     * C++ destructor.
+     */
+    ~CVtUiCmdContext();
+
+    /**
+     * Returns reference priority.
+     *
+     * @return Validator priority.
+     */
+     TInt ReferencePriority() const;
+
+    /**
+     * Returns context type.
+     *
+     * @return Context type.
+     */
+     TVtUiCmdContextType ContextType() const;
+
+    /**
+     * Adds validator to context.
+     *
+     * @param aValidator Validator reference to be added into this context.
+     * @return KErrNone if validator supports this context and adding succeeded.
+     * KErrNotSupported if validator does not support this context.
+     * Other system wide error code that may happen during add.
+     */
+    TInt AddValidator( CVtUiCmdValidatorBase& aValidator );
+
+    /**
+     * Removes validator to context.
+     *
+     * @param aValidator Constant validator reference to be removed from this
+     * context.
+     * @return Validator priority.
+     */
+    void RemoveValidator( const CVtUiCmdValidatorBase& aValidator );
+
+public: // pure virtual methods
+
+    /**
+     * Do validation.
+     *
+     * @param aAction Action to be validated.
+     */
+    virtual void ValidateL( CVtUiCmdValidationActionBase& aAction ) = 0;
+
+protected:
+
+    /**
+     * C++ constructor
+     */
+    CVtUiCmdContext( MVtUiCommandManager& aCommandManager,
+        TVtUiCmdContextType aCtxType, TInt aReferencePriority );
+
+    /**
+     * Validates menu items.
+    */
+    void ValidateMenuItemsL( CVtUiCmdValidationActionBase& aAction );
+
+    /**
+     * Validates softkey items.
+    */
+    void ValidateSoftkeyItemsL( CVtUiCmdValidationActionBase& aAction );
+
+    /**
+     * Validates toolbar items.
+    */
+    void ValidateToolbarItemsL( CVtUiCmdValidationActionBase& aAction );
+
+    /**
+     * Custom action validation.
+    */
+    void CustomValidationL( CVtUiCmdCustomValidationActionBase& aAction );
+
+    /**
+     * Registers command context to command policy manager.
+     */
+    void RegisterCommandContextL();
+
+    /**
+     * Unregisters command context from command policy manager.
+     */
+    void UnregisterCommandContext();
+
+protected: // data
+
+    // Reference to policy manager (for cleanup)
+    MVtUiCommandManager& iCommandManager;
+
+private: // data
+
+    // Validator list (ordered by priority)
+    RPointerArray< CVtUiCmdValidatorBase > iValidators;
+
+    // Validator priority
+    const TInt iReferencePriority;
+
+    // Context type.
+    const TVtUiCmdContextType iContextType;
+
+    };
+
+#endif // C_VTUICMDCONTEXT_H