1 /*

     2 * Copyright (c) 2009 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 *

    16 */

    17 #include <cppluginloader.h>

    18 #include <QString>

    19 #include <QDir>

    20 #include <QFileInfo>

    21 #include <QPluginLoader>

    22 #include <cpplugininterface.h>

    23 #include <cplauncherinterface.h>

    24 #include "cputility.h"

    25 #include <cplogger.h>

    26 

    27 

    28 /*!

    29     \class CpPluginLoader

    30     \brief The CpPluginLoader class loads a controlpanel plugin at run-time.

    31  */

    32 

    33 #ifdef WIN32

    34     #define PLUGINFILE_SUFFIX "dll"

    35 #else

    36     #define PLUGINFILE_SUFFIX "qtplugin"

    37 #endif

    38 

    39 template <typename INTERFACE>

    40 static INTERFACE* loadPluginInterface(const QString &pluginFile)

    41 {

    42     CPPERF_LOG( QLatin1String("Loading plugin: ") + pluginFile );

    43     

    44     QFileInfo fileInfo(pluginFile);

    45 

    46     if (!fileInfo.isAbsolute()) {

    47         QString fileName = fileInfo.fileName();

    48         if (fileInfo.suffix().compare(PLUGINFILE_SUFFIX,Qt::CaseInsensitive)) {

    49             fileName = fileInfo.baseName() + '.' + PLUGINFILE_SUFFIX;

    50         }

    51 

    52 		QStringList pluginDirs = CpUtility::pluginDirectories();

    53 		foreach(const QString &pluginDir,pluginDirs) {

    54 			fileInfo.setFile(pluginDir + fileName);

    55 			if (fileInfo.exists() && QLibrary::isLibrary(fileInfo.absoluteFilePath())) {

    56 			    CPPERF_LOG( QLatin1String("Valid plugin stub found: ") + fileInfo.absoluteFilePath() );

    57 				break;

    58 			}

    59 		}

    60     }

    61 

    62 	QPluginLoader loader(fileInfo.absoluteFilePath());

    63 	INTERFACE *plugin = qobject_cast<INTERFACE*> (loader.instance());

    64 	if (!plugin) {

    65 		loader.unload();

    66 	}

    67 	

    68 	CPPERF_LOG( QLatin1String("Load plugin ") + (plugin ? QLatin1String("succeed.") : QLatin1String("failed.")) );

    69     

    70     return plugin;

    71 }

    72 

    73 /*!

    74     load a CpPluginInterface by plugin file.

    75     the plugin file can either absoulte file path or only file name.

    76     acceptable format:

    77         sampleplugin

    78         sampleplugin.qtplugin

    79         sampleplugin.dll

    80         C:/resource/qt/plugins/controlpanel/sampleplugin.qtplugin

    81         C:/resource/qt/plugins/controlpanel/sampleplugin.dll

    82  */

    83 CpPluginInterface *CpPluginLoader::loadCpPluginInterface(const QString &pluginFile)

    84 {

    85     return ::loadPluginInterface<CpPluginInterface>(pluginFile);

    86 }

    87 

    88 /*!

    89     load a CpLauncherInterface by plugin file.

    90     the plugin file can either absoulte file path or only file name.

    91     acceptable format:

    92         sampleplugin

    93         sampleplugin.qtplugin

    94         sampleplugin.dll

    95         C:/resource/qt/plugins/controlpanel/sampleplugin.qtplugin

    96         C:/resource/qt/plugins/controlpanel/sampleplugin.dll

    97  */

    98 CpLauncherInterface *CpPluginLoader::loadCpLauncherInterface(const QString &pluginFile)

    99 {

   100     return ::loadPluginInterface<CpLauncherInterface>(pluginFile);    

   101 }

   102 

   103