qtmobility/src/sensors/qsensorpluginloader.cpp
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0:cfcbf08528c4 1:2b40d63a9c3d
       
     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
       
     4 ** All rights reserved.
       
     5 ** Contact: Nokia Corporation (qt-info@nokia.com)
       
     6 **
       
     7 ** This file is part of the Qt Mobility Components.
       
     8 **
       
     9 ** $QT_BEGIN_LICENSE:LGPL$
       
    10 ** No Commercial Usage
       
    11 ** This file contains pre-release code and may not be distributed.
       
    12 ** You may use this file in accordance with the terms and conditions
       
    13 ** contained in the Technology Preview License Agreement accompanying
       
    14 ** this package.
       
    15 **
       
    16 ** GNU Lesser General Public License Usage
       
    17 ** Alternatively, this file may be used under the terms of the GNU Lesser
       
    18 ** General Public License version 2.1 as published by the Free Software
       
    19 ** Foundation and appearing in the file LICENSE.LGPL included in the
       
    20 ** packaging of this file.  Please review the following information to
       
    21 ** ensure the GNU Lesser General Public License version 2.1 requirements
       
    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
       
    23 **
       
    24 ** In addition, as a special exception, Nokia gives you certain additional
       
    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception
       
    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
       
    27 **
       
    28 ** If you have questions regarding the use of this file, please contact
       
    29 ** Nokia at qt-info@nokia.com.
       
    30 **
       
    31 **
       
    32 **
       
    33 **
       
    34 **
       
    35 **
       
    36 **
       
    37 **
       
    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 
       
    42 #include "qsensorpluginloader_p.h"
       
    43 #include <QtCore/qcoreapplication.h>
       
    44 #include <QtCore/qpluginloader.h>
       
    45 #include <QtCore/qdir.h>
       
    46 #include <QtCore/qdebug.h>
       
    47 
       
    48 #include "qsensorplugin.h"
       
    49 
       
    50 QTM_BEGIN_NAMESPACE
       
    51 
       
    52 QSensorPluginLoader::QSensorPluginLoader(const char *iid, const QString &location)
       
    53     : m_iid(iid)
       
    54 {
       
    55     m_location = location + QLatin1String("/");
       
    56     load();
       
    57 }
       
    58 
       
    59 void QSensorPluginLoader::load()
       
    60 {
       
    61     if (!m_plugins.isEmpty())
       
    62         return;
       
    63 
       
    64     QStringList     paths = QCoreApplication::libraryPaths();
       
    65 
       
    66     Q_FOREACH (QString const &path, paths) {
       
    67         QString     pluginPathName(path + m_location);
       
    68         QDir        pluginDir(pluginPathName);
       
    69 
       
    70         if (!pluginDir.exists())
       
    71             continue;
       
    72 
       
    73         Q_FOREACH (QString pluginLib, pluginDir.entryList(QDir::Files)) {
       
    74             QPluginLoader   loader(pluginPathName + pluginLib);
       
    75 
       
    76             QObject *o = loader.instance();
       
    77             if (o != 0 && o->qt_metacast(m_iid) != 0) {
       
    78                 QSensorPluginInterface *p = qobject_cast<QSensorPluginInterface*>(o);
       
    79                 if (p != 0) {
       
    80                     m_plugins << p;
       
    81                 }
       
    82 
       
    83                 continue;
       
    84             } else {
       
    85                 qWarning() << "QSensorPluginLoader: Failed to load plugin: " << pluginLib << loader.errorString();
       
    86             }
       
    87             delete o;
       
    88             loader.unload();
       
    89         }
       
    90     }
       
    91 }
       
    92 
       
    93 QTM_END_NAMESPACE
       
    94