idlehomescreen/inc/xncomponent.h
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     1 /*
       
     2 * Copyright (c) 2002-2004 Nokia Corporation and/or its subsidiary(-ies).
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description:
       
    15 * Xuikon component base class
       
    16 *
       
    17 */
       
    18 
       
    19 #ifndef XNCOMPONENT_H
       
    20 #define XNCOMPONENT_H
       
    21 
       
    22 // System includes
       
    23 #include <e32base.h>
       
    24 
       
    25 // Forward declarations
       
    26 class CXnControlAdapter;
       
    27 class CXnNodePluginIf;
       
    28 namespace XnComponentInterface
       
    29     {
       
    30     class MXnComponentInterface;
       
    31     }
       
    32 
       
    33 // Class declaration
       
    34 /**
       
    35  *  Xuikon component base class.
       
    36  *
       
    37  *  @ingroup group_xnlayoutengine
       
    38  *  @lib ?library
       
    39  *  @since Series 60 3.1
       
    40  */
       
    41 class CXnComponent : public CBase
       
    42     {
       
    43 public: // Constructors and destructor
       
    44     /**
       
    45      * Two-phased constructor.
       
    46      * @param aType Type.
       
    47      */
       
    48     IMPORT_C static CXnComponent* NewL();
       
    49 
       
    50     /**
       
    51      * Destructor.
       
    52      */
       
    53     IMPORT_C virtual ~CXnComponent();
       
    54 
       
    55 public:
       
    56     // New functions
       
    57 
       
    58     /**
       
    59      * Sets a control adapter.
       
    60      *
       
    61      * @since Series 60 3.1
       
    62      * @param aAdapter Adapter.
       
    63      */
       
    64     IMPORT_C void SetControlAdapter( CXnControlAdapter* aAdapter );
       
    65 
       
    66     /**
       
    67      * Returns the control adapter.
       
    68      *
       
    69      * @since Series 60 3.1
       
    70      * @return Control adapter.
       
    71      */
       
    72     IMPORT_C CXnControlAdapter* ControlAdapter();
       
    73 
       
    74     /**
       
    75      * Returns component's node.
       
    76      *
       
    77      * @since Series 60 3.1
       
    78      * @return Node.
       
    79      */
       
    80     IMPORT_C CXnNodePluginIf* Node();
       
    81 
       
    82     /**
       
    83      * Sets the component's node.
       
    84      *
       
    85      * @since Series 60 3.1
       
    86      * @param aNode Node
       
    87      */
       
    88     IMPORT_C void SetNode( CXnNodePluginIf& aNode );
       
    89 
       
    90     /**
       
    91      * Enter power save mode. This is done when application goes to background
       
    92      * or lights go off.
       
    93      * Derived classes should override this function and stop animations,
       
    94      * timers etc. when the function is called.
       
    95      */
       
    96     IMPORT_C virtual void EnterPowerSaveModeL();
       
    97 
       
    98     /**
       
    99      * Exit power save mode. This is done when application comes to foreground
       
   100      * or lights go on.
       
   101      * Derived classes should override this function and restart animations,
       
   102      * timers etc. when the function is called.
       
   103      */
       
   104      IMPORT_C virtual void ExitPowerSaveModeL();
       
   105 
       
   106     /**
       
   107      * Create a component interface according to the given type.
       
   108      * @param aType Type of the interface to create
       
   109      * @return Created interface or NULL if the provided type is not supported.
       
   110      */
       
   111     IMPORT_C virtual XnComponentInterface::MXnComponentInterface* MakeInterfaceL(
       
   112         const TDesC8& aType );
       
   113 
       
   114 protected:
       
   115     /**
       
   116      * C++ default constructor.
       
   117      */
       
   118     IMPORT_C CXnComponent();
       
   119 
       
   120     /**
       
   121      * Two-phased constructor.
       
   122      */
       
   123     IMPORT_C void ConstructL();
       
   124 
       
   125 private:
       
   126     // Data
       
   127 
       
   128     /**
       
   129      * Pointer to control adapter.
       
   130      * Own.
       
   131      */
       
   132     CXnControlAdapter* iAdapter;
       
   133 
       
   134     /**
       
   135      * Component's node.
       
   136      * Not own.
       
   137      */
       
   138     CXnNodePluginIf* iNode;
       
   139     };
       
   140 
       
   141 #endif