src/sensors/qsensorpluginloader.cpp
changeset 0 876b1a06bc25
child 5 603d3f8b6302
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/sensors/qsensorpluginloader.cpp	Wed Aug 25 15:49:42 2010 +0300
@@ -0,0 +1,102 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 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/qdir.h>
+#include <QtCore/qdebug.h>
+
+#include "qsensorplugin.h"
+#include "qmobilitypluginsearch.h"
+
+QTM_BEGIN_NAMESPACE
+
+QSensorPluginLoader::QSensorPluginLoader(const char *iid, const QString &location)
+    : m_iid(iid)
+{
+    m_location = location + QLatin1String("/");
+    load();
+}
+
+QSensorPluginLoader::~QSensorPluginLoader()
+{
+    Q_FOREACH (QPluginLoader *loader, m_loaders) {
+        bool ok = loader->unload();
+        if (!ok) qWarning() << "Cannot unload" << loader->fileName();
+        delete loader;
+    }
+}
+
+void QSensorPluginLoader::load()
+{
+    if (!m_plugins.isEmpty())
+        return;
+
+    QStringList plugins;
+    plugins = mobilityPlugins(QLatin1String("sensors"));
+
+    /* Now discover the dynamic plugins */
+    for (int i=0; i < plugins.count(); i++) {
+        QPluginLoader *loader = new QPluginLoader(plugins.at(i));
+
+        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;
+                m_loaders << loader;
+            } else {
+                loader->unload();
+                delete loader;
+            }
+
+            continue;
+        } else {
+            qWarning() << "QSensorPluginLoader: Failed to load plugin: " << plugins.at(i) << loader->errorString();
+        }
+        delete o;
+        loader->unload();
+        delete loader;
+    }
+}
+
+QTM_END_NAMESPACE
+