1 /*

     2 * Copyright (c) 2010 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 <btdevsettingpluginloader.h>

    18 #include <QString>

    19 #include <QDir>

    20 #include <QFileInfo>

    21 #include <QPluginLoader>

    22 #include <btdevsettinginterface.h>

    23 #include <btdevsettingglobal.h>

    24 

    25 /*!

    26     \class BtDevSettingPluginLoader

    27     \brief The BtDevSettingPluginLoader class loads BT device setting plugins.

    28  */

    29 

    30 #ifdef WIN32

    31     #define PLUGINFILE_SUFFIX "dll"

    32 #else

    33     #define PLUGINFILE_SUFFIX "qtplugin"

    34 #endif

    35 

    36 

    37 static QStringList getDrives()

    38 {

    39     static QStringList drives;

    40     if (drives.empty()) {

    41 #ifdef WIN32

    42         drives.append("C:");

    43 #else

    44         QFileInfoList fileInfoList = QDir::drives();

    45         foreach(const QFileInfo &fileInfo,fileInfoList) {

    46             QString str = fileInfo.filePath();

    47             if (str.length() > 2) {

    48                 str = str.left(2);

    49             }

    50             drives.append(str);

    51         }

    52 #endif

    53     }

    54     return drives;

    55 }

    56 

    57 static QStringList directoriesFromAllDrives(const QString &baseDir)

    58 {

    59     QStringList dirs;

    60     QStringList drives = getDrives();

    61     foreach(const QString &drive,drives) {

    62         QString dir = drive + baseDir + QDir::separator();

    63         if (QFileInfo(dir).exists()) {

    64             dirs.append(dir);

    65         }

    66     }

    67     return dirs;

    68 }

    69 

    70 static BtDevSettingInterface* loadPluginInterface(const QFileInfo &pluginFile)

    71 {    

    72     QPluginLoader loader(pluginFile.absoluteFilePath());

    73     BtDevSettingInterface *plugin = 

    74             qobject_cast<BtDevSettingInterface*> (loader.instance());

    75     if (!plugin) {

    76         loader.unload();

    77     }

    78     return plugin;

    79 }

    80 

    81 /*!

    82    Load all setting interfaces.

    83    

    84    \return the list of plugin interface.

    85  */

    86 QList<BtDevSettingInterface*> BtDevSettingPluginLoader::loadDevSettingInterfaces()

    87 {

    88     QList<BtDevSettingInterface*> interfaces;

    89     

    90     static QStringList pluginDirs;

    91     if (pluginDirs.empty()) {

    92         pluginDirs = directoriesFromAllDrives(BTDEVSETTING_PLUGIN_PATH);

    93     }

    94     foreach(const QString &dirStr,pluginDirs) {

    95         QDir pluginDir( dirStr );

    96         QFileInfoList fileInfoList = pluginDir.entryInfoList( QDir::Files );

    97         foreach(const QFileInfo &fileInfo,fileInfoList) {

    98             int diff = fileInfo.suffix().compare(PLUGINFILE_SUFFIX,Qt::CaseInsensitive);

    99             if (!diff) {

   100                 BtDevSettingInterface* settingIf = loadPluginInterface(fileInfo);

   101                 if ( settingIf ) {

   102                     interfaces.append( settingIf );

   103                 }

   104             }

   105         }

   106     }

   107     

   108     return interfaces;

   109 }

   110