| /**************************************************************************** |
| ** |
| ** 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; |
| QHash<QString, QJsonObject> ExtensionLoader::m_plugins; |
| bool ExtensionLoader::m_alreadyDiscovered = false; |
| |
| Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, loader, |
| (QVirtualKeyboardExtensionPluginFactoryInterface_iid, |
| QLatin1String("/virtualkeyboard"))) |
| |
| QHash<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.insertMulti(name, obj); |
| } |
| } |
| } |
| |
| } // namespace QtVirtualKeyboard |
| QT_END_NAMESPACE |