1 /*

     2 * Copyright (c) 2008 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:  HID Keyboard Layout ECOM interface definition.

    15  *

    16 */

    17 

    18 

    19 #ifndef __HIDLAYOUTPLUGININTERFACE_H__

    20 #define __HIDLAYOUTPLUGININTERFACE_H__

    21 

    22 #include <ecom/ecom.h>

    23 #include "hiddebug.h"

    24 #include "hiduids.h"

    25 

    26 // Constant for plugin interface:

    27 const TUid KHidLayoutPluginInterfaceUid =

    28     {

    29     LAYOUT_PLUGIN_IF

    30     };

    31 

    32 /**

    33  * Interface class for HID Layout plugin. All plugins will implement this class.

    34  *

    35  * @lib kbdlayout.lib ?

    36  * @since ...

    37  */

    38 class CHidLayoutPluginInterface : public CBase

    39     {

    40 public:

    41     // Constructors & destructors

    42 

    43     /**

    44      * Creates new plugin having the given UID.

    45      * Uses Leave code KErrNotFound if implementation is not found.

    46      *

    47      * @param aImplementationUid Implementation UID of the plugin to be

    48      *        created.

    49      */

    50     inline static CHidLayoutPluginInterface* NewL(

    51             const TUid aImplementationUid);

    52 

    53     /**

    54      * Destructor

    55      */

    56     inline ~CHidLayoutPluginInterface();

    57 

    58 protected:

    59     // New

    60 

    61     /**

    62      * C++ constructor.

    63      */

    64     inline CHidLayoutPluginInterface();

    65 

    66 private:

    67     // Data

    68 

    69     /**

    70      * ECOM plugin instance UID.

    71      */

    72     TUid iDtor_ID_Key;

    73     };

    74 

    75 inline CHidLayoutPluginInterface::CHidLayoutPluginInterface()

    76     {

    77     }

    78 

    79 inline CHidLayoutPluginInterface::~CHidLayoutPluginInterface()

    80     {

    81     DBG(RDebug::Print(_L("[HID]\tCHidLayoutPluginInterface: destroying plugin 0x%08x"),iDtor_ID_Key));

    82     REComSession::DestroyedImplementation(iDtor_ID_Key);

    83     }

    84 

    85 inline CHidLayoutPluginInterface* CHidLayoutPluginInterface::NewL(

    86         TUid aImplementationUid)

    87     {

    88     DBG(RDebug::Print(_L("[HID]\tCHidLayoutPluginInterface: Loading plugin 0x%08x"),aImplementationUid.iUid));

    89 

    90     TAny* ptr;

    91     TInt32 keyOffset = _FOFF( CHidLayoutPluginInterface, iDtor_ID_Key );

    92 

    93     ptr = REComSession::CreateImplementationL(aImplementationUid, keyOffset);

    94 

    95     DEBUG_PRINT( _L( "[HID]\tCHidLayoutPluginInterface: Loading done." ) );

    96 

    97     return reinterpret_cast<CHidLayoutPluginInterface*> (ptr);

    98     }

    99 

   100 #endif

   101