1 /*

     2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 *

     5 * This program is free software: you can redistribute it and/or modify

     6 * it under the terms of the GNU Lesser General Public License as published by

     7 * the Free Software Foundation, version 2.1 of the License.

     8 * 

     9 * This program is distributed in the hope that it will be useful,

    10 * but WITHOUT ANY WARRANTY; without even the implied warranty of

    11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    12 * GNU Lesser General Public License for more details.

    13 *

    14 * You should have received a copy of the GNU Lesser General Public License

    15 * along with this program.  If not, 

    16 * see "http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html/".

    17 *

    18 * Description:  Private plugin loader implementation

    19 *

    20 */

    21 

    22 #ifndef QPLUGINLOADER2PRIVATE_H

    23 #define QPLUGINLOADER2PRIVATE_H

    24 

    25 #include <QObject>

    26 #include <QString>

    27 #include <QList>

    28 #include <QtGlobal>

    29 #include <QLibrary>

    30 #include <QSettings>

    31 

    32 //Incudes

    33 #include <ecom/implementationinformation.h>

    34 #include <ecom/ecom.h>

    35 

    36 //Forward class declaration

    37 class XQPluginInfo;

    38 

    39 //Class declaration

    40 class XQPluginLoaderPrivate

    41 {

    42 public:

    43     int pHnd;

    44 

    45     QString fileName;

    46     const int uid;

    47     bool loadPlugin(); 

    48     bool unload();

    49     void release();

    50 

    51     static XQPluginLoaderPrivate *findOrCreate(const QString &fileName, const QString &version = QString());

    52     static XQPluginLoaderPrivate *findOrCreate(int, const QString &version = QString());

    53 

    54     QString errorString;

    55     QLibrary::LoadHints loadHints;

    56 

    57     bool isPlugin(QSettings *settings = 0);

    58 

    59     QObject* instance();

    60 

    61     /**

    62      * Function retrive plugin description information from ECom framework

    63      * @param infoArr - plugins description array

    64      *                  ( definition from ECom framework )

    65      * @param interfaceName - reqursted plugin interface name

    66      * @param impls - list of plugin descrpions. plugins implement requested 

    67      *                interface 

    68      */ 

    69     static void listImplementationsL( 

    70             RImplInfoPtrArray& infoArr, 

    71             const QString &interfaceName, 

    72             QList<XQPluginInfo> &impls);

    73     

    74 private:

    75     XQPluginLoaderPrivate( int uid, const QString &version= QString() );

    76     ~XQPluginLoaderPrivate();

    77     

    78     void loadL();

    79     static void findOrCreateL( XQPluginLoaderPrivate*& pluginLoader, const QString &fileName, const QString &version );

    80     void setFileName(const QString& fileName);

    81     QObject* pluginInstance;

    82     

    83     QAtomicInt loaderRefCount;

    84     QAtomicInt loaderUnloadCount;    

    85     

    86 };

    87 

    88 #endif // QPLUGINLOADER2PRIVATE_H