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's 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 #include <ecom/implementationinformation.h>

    33 #include <ecom/ecom.h>

    34 

    35 class XQPluginInfo;

    36 

    37 class XQPluginLoaderPrivate

    38 {

    39 public:

    40     int pHnd;

    41 

    42     QString fileName;

    43     const int uid;

    44     bool loadPlugin(); 

    45     bool unload();

    46     void release();

    47 

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

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

    50 

    51     QString errorString;

    52     QLibrary::LoadHints loadHints;

    53 

    54     bool isPlugin(QSettings *settings = 0);

    55 

    56     QObject* instance();

    57 

    58     /**

    59      * Function retrive plugin description information from ECom framework

    60      * @param infoArr - plugins description array

    61      *                  ( definition from ECom framework )

    62      * @param interfaceName - reqursted plugin interface name

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

    64      *                interface 

    65      */ 

    66     static void listImplementationsL( 

    67             RImplInfoPtrArray& infoArr, 

    68             const QString &interfaceName, 

    69             QList<XQPluginInfo> &impls);

    70     

    71 private:

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

    73     ~XQPluginLoaderPrivate();

    74     

    75     void loadL();

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

    77     void setFileName(const QString& fileName);

    78     QObject* pluginInstance;

    79     

    80     QAtomicInt loaderRefCount;

    81     QAtomicInt loaderUnloadCount;    

    82     

    83 };

    84 

    85 #endif // QPLUGINLOADER2PRIVATE_H