src/multimedia/qmediapluginloader.cpp
changeset 0 876b1a06bc25
child 5 603d3f8b6302
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/multimedia/qmediapluginloader.cpp	Wed Aug 25 15:49:42 2010 +0300
@@ -0,0 +1,121 @@
+/****************************************************************************
+**
+** 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 "qmediapluginloader_p.h"
+#include <QtCore/qcoreapplication.h>
+#include <QtCore/qpluginloader.h>
+#include <QtCore/qdir.h>
+#include <QtCore/qdebug.h>
+
+#include "qmediaserviceproviderplugin.h"
+#include "qmobilitypluginsearch.h"
+
+QT_BEGIN_NAMESPACE
+
+typedef QMap<QString,QObjectList> ObjectListMap;
+Q_GLOBAL_STATIC(ObjectListMap, staticMediaPlugins);
+
+QMediaPluginLoader::QMediaPluginLoader(const char *iid, const QString &location, Qt::CaseSensitivity):
+    m_iid(iid)
+{
+    m_location = location + "/";
+    load();
+}
+
+QStringList QMediaPluginLoader::keys() const
+{
+    return m_instances.keys();
+}
+
+QObject* QMediaPluginLoader::instance(QString const &key)
+{
+    return m_instances.value(key);
+}
+
+QList<QObject*> QMediaPluginLoader::instances(QString const &key)
+{
+    return m_instances.values(key);
+}
+
+//to be used for testing purposes only
+void QMediaPluginLoader::setStaticPlugins(const QString &location, const QObjectList& objects)
+{
+    staticMediaPlugins()->insert(location+"/", objects);
+}
+
+void QMediaPluginLoader::load()
+{
+    if (!m_instances.isEmpty())
+        return;
+
+    if (staticMediaPlugins() && staticMediaPlugins()->contains(m_location)) {
+        foreach(QObject *o, staticMediaPlugins()->value(m_location)) {
+            if (o != 0 && o->qt_metacast(m_iid) != 0) {
+                QFactoryInterface* p = qobject_cast<QFactoryInterface*>(o);
+                if (p != 0) {
+                    foreach (QString const &key, p->keys())
+                        m_instances.insertMulti(key, o);
+                }
+            }
+        }
+    } else {
+        QStringList plugins = QTM_PREPEND_NAMESPACE(mobilityPlugins)(m_location);
+        for (int i=0; i < plugins.count(); i++) {
+            QPluginLoader   loader(plugins.at(i));
+            QObject *o = loader.instance();
+            if (o != 0 && o->qt_metacast(m_iid) != 0) {
+                QFactoryInterface* p = qobject_cast<QFactoryInterface*>(o);
+                if (p != 0) {
+                    foreach (QString const &key, p->keys())
+                        m_instances.insertMulti(key, o);
+                }
+
+                continue;
+            } else {
+                qWarning() << "QMediaPluginLoader: Failed to load plugin: " << plugins.at(i) << loader.errorString();
+            }
+            delete o;
+            loader.unload();
+        }
+    }
+}
+QT_END_NAMESPACE
+