qtmobility/src/sensors/qsensorpluginloader.cpp
changeset 1 2b40d63a9c3d
child 4 90517678cc4f
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/qtmobility/src/sensors/qsensorpluginloader.cpp	Fri Apr 16 15:51:22 2010 +0300
@@ -0,0 +1,94 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qsensorpluginloader_p.h"
+#include <QtCore/qcoreapplication.h>
+#include <QtCore/qpluginloader.h>
+#include <QtCore/qdir.h>
+#include <QtCore/qdebug.h>
+
+#include "qsensorplugin.h"
+
+QTM_BEGIN_NAMESPACE
+
+QSensorPluginLoader::QSensorPluginLoader(const char *iid, const QString &location)
+    : m_iid(iid)
+{
+    m_location = location + QLatin1String("/");
+    load();
+}
+
+void QSensorPluginLoader::load()
+{
+    if (!m_plugins.isEmpty())
+        return;
+
+    QStringList     paths = QCoreApplication::libraryPaths();
+
+    Q_FOREACH (QString const &path, paths) {
+        QString     pluginPathName(path + m_location);
+        QDir        pluginDir(pluginPathName);
+
+        if (!pluginDir.exists())
+            continue;
+
+        Q_FOREACH (QString pluginLib, pluginDir.entryList(QDir::Files)) {
+            QPluginLoader   loader(pluginPathName + pluginLib);
+
+            QObject *o = loader.instance();
+            if (o != 0 && o->qt_metacast(m_iid) != 0) {
+                QSensorPluginInterface *p = qobject_cast<QSensorPluginInterface*>(o);
+                if (p != 0) {
+                    m_plugins << p;
+                }
+
+                continue;
+            } else {
+                qWarning() << "QSensorPluginLoader: Failed to load plugin: " << pluginLib << loader.errorString();
+            }
+            delete o;
+            loader.unload();
+        }
+    }
+}
+
+QTM_END_NAMESPACE
+