File indexing completed on 2024-04-28 16:55:13

0001 /***************************************************************************
0002  *   Copyright (C) 2010 by Dario Freddi <drf@kde.org>                      *
0003  *                                                                         *
0004  *   This program is free software; you can redistribute it and/or modify  *
0005  *   it under the terms of the GNU General Public License as published by  *
0006  *   the Free Software Foundation; either version 2 of the License, or     *
0007  *   (at your option) any later version.                                   *
0008  *                                                                         *
0009  *   This program is distributed in the hope that it will be useful,       *
0010  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
0011  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
0012  *   GNU General Public License for more details.                          *
0013  *                                                                         *
0014  *   You should have received a copy of the GNU General Public License     *
0015  *   along with this program; if not, write to the                         *
0016  *   Free Software Foundation, Inc.,                                       *
0017  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA .        *
0018  ***************************************************************************/
0019 
0020 
0021 #include "powerdevilactionpool.h"
0022 
0023 #include "powerdevilaction.h"
0024 #include "powerdevilcore.h"
0025 #include "powerdevil_debug.h"
0026 
0027 #include <config-powerdevil.h>
0028 
0029 #include <KConfigGroup>
0030 
0031 #include <KPluginFactory>
0032 #include <QDBusConnection>
0033 #include <QDebug>
0034 
0035 namespace PowerDevil
0036 {
0037 
0038 class ActionPoolHelper
0039 {
0040 public:
0041     ActionPoolHelper() : q(nullptr) {}
0042     ~ActionPoolHelper() {
0043         delete q;
0044     }
0045     ActionPool *q;
0046 };
0047 
0048 Q_GLOBAL_STATIC(ActionPoolHelper, s_globalActionPool)
0049 
0050 ActionPool *ActionPool::instance()
0051 {
0052     if (!s_globalActionPool->q) {
0053         new ActionPool;
0054     }
0055 
0056     return s_globalActionPool->q;
0057 }
0058 
0059 ActionPool::ActionPool()
0060 {
0061     Q_ASSERT(!s_globalActionPool->q);
0062     s_globalActionPool->q = this;
0063 }
0064 
0065 ActionPool::~ActionPool()
0066 {
0067     clearCache();
0068 }
0069 
0070 void ActionPool::clearCache()
0071 {
0072     QHash< QString, Action* >::iterator i = m_actionPool.begin();
0073     while (i != m_actionPool.end()) {
0074         // Delete the associated action and erase
0075         i.value()->deleteLater();
0076         i = m_actionPool.erase(i);
0077     }
0078 }
0079 
0080 void ActionPool::init(PowerDevil::Core *parent)
0081 {
0082     const QVector<KPluginMetaData> offers = KPluginMetaData::findPlugins(QStringLiteral("powerdevil/action"));
0083     for (const KPluginMetaData &data : offers) {
0084         if (auto plugin = KPluginFactory::instantiatePlugin<PowerDevil::Action>(data, parent).plugin) {
0085             m_actionPool.insert(data.value(QStringLiteral("X-KDE-PowerDevil-Action-ID")), plugin);
0086         }
0087     }
0088 
0089     // Verify support
0090     QHash<QString,Action*>::iterator i = m_actionPool.begin();
0091     while (i != m_actionPool.end()) {
0092         Action *action = i.value();
0093         if (!action->isSupported()) {
0094             i = m_actionPool.erase(i);
0095             action->deleteLater();
0096         } else {
0097             ++i;
0098         }
0099     }
0100 
0101     // Register DBus objects
0102     for (const KPluginMetaData &offer : offers) {
0103         QString actionId = offer.value(QStringLiteral("X-KDE-PowerDevil-Action-ID"));
0104         if (offer.value(QStringLiteral("X-KDE-PowerDevil-Action-RegistersDBusInterface"), false) && m_actionPool.contains(actionId)) {
0105             QDBusConnection::sessionBus().registerObject(QStringLiteral("/org/kde/Solid/PowerManagement/Actions/") + actionId, m_actionPool[actionId]);
0106         }
0107     }
0108 }
0109 
0110 Action* ActionPool::loadAction(const QString& actionId, const KConfigGroup& group, PowerDevil::Core *parent)
0111 {
0112     Q_UNUSED(parent);
0113     // Let's retrieve the action
0114     if (m_actionPool.contains(actionId)) {
0115         Action *retaction = m_actionPool[actionId];
0116 
0117         if (group.isValid()) {
0118 
0119             if (m_activeActions.contains(actionId)) {
0120                 // We are reloading the action: let's unload it first then.
0121                 retaction->onProfileUnload();
0122                 retaction->unloadAction();
0123                 m_activeActions.removeOne(actionId);
0124             }
0125 
0126             retaction->loadAction(group);
0127             m_activeActions.append(actionId);
0128         }
0129 
0130         return retaction;
0131     } else {
0132         // Hmm... troubles in configuration. Np, let's just return 0 and let the core handle this
0133         return nullptr;
0134     }
0135 }
0136 
0137 void ActionPool::unloadAllActiveActions()
0138 {
0139     for (const QString &action : qAsConst(m_activeActions)) {
0140         m_actionPool[action]->onProfileUnload();
0141         m_actionPool[action]->unloadAction();
0142     }
0143     m_activeActions.clear();
0144 }
0145 
0146 }