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/****************************************************************************
**
** Copyright (C) 2018 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Virtual Keyboard module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
** approved by the KDE Free Qt Foundation. The licenses are as published by
** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "extensionloader.h"
#include <QtVirtualKeyboard/QVirtualKeyboardExtensionPlugin>
#include <QtCore/private/qfactoryloader_p.h>
QT_BEGIN_NAMESPACE
namespace QtVirtualKeyboard {
QMutex ExtensionLoader::m_mutex;
QMultiHash<QString, QJsonObject> ExtensionLoader::m_plugins;
bool ExtensionLoader::m_alreadyDiscovered = false;
Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, loader,
(QVirtualKeyboardExtensionPluginFactoryInterface_iid,
QLatin1String("/virtualkeyboard")))
QMultiHash<QString, QJsonObject> ExtensionLoader::plugins(bool reload)
{
QMutexLocker lock(&m_mutex);
if (reload == true)
m_alreadyDiscovered = false;
if (!m_alreadyDiscovered) {
loadPluginMetadata();
m_alreadyDiscovered = true;
}
return m_plugins;
}
QJsonObject ExtensionLoader::loadMeta(const QString &extensionName)
{
QJsonObject metaData;
metaData = QJsonObject();
metaData.insert(QLatin1String("index"), -1);
QList<QJsonObject> candidates = ExtensionLoader::plugins().values(extensionName);
int versionFound = -1;
int idx = -1;
// figure out which version of the plugin we want
for (int i = 0; i < candidates.size(); ++i) {
QJsonObject meta = candidates[i];
if (meta.contains(QLatin1String("Version"))
&& meta.value(QLatin1String("Version")).isDouble()) {
int ver = int(meta.value(QLatin1String("Version")).toDouble());
if (ver > versionFound) {
versionFound = ver;
idx = i;
}
}
}
if (idx != -1) {
metaData = candidates[idx];
return metaData;
}
return QJsonObject();
}
QVirtualKeyboardExtensionPlugin *ExtensionLoader::loadPlugin(QJsonObject metaData)
{
if (int(metaData.value(QLatin1String("index")).toDouble()) < 0) {
return NULL;
}
int idx = int(metaData.value(QLatin1String("index")).toDouble());
return qobject_cast<QVirtualKeyboardExtensionPlugin *>(loader()->instance(idx));
}
void ExtensionLoader::loadPluginMetadata()
{
QFactoryLoader *l = loader();
QList<QJsonObject> meta = l->metaData();
for (int i = 0; i < meta.size(); ++i) {
QJsonObject obj = meta.at(i).value(QLatin1String("MetaData")).toObject();
QString name = obj.value(QLatin1String("Name")).toString();
if (!name.isEmpty()) {
obj.insert(QLatin1String("index"), i);
m_plugins.insert(name, obj);
}
}
}
} // namespace QtVirtualKeyboard
QT_END_NAMESPACE
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