File indexing completed on 2023-09-24 04:14:57

0001 /*
0002     SPDX-FileCopyrightText: 2008 Aaron Seigo <aseigo@kde.org>
0003 
0004     SPDX-License-Identifier: LGPL-2.0-or-later
0005 */
0006 
0007 #include "service.h"
0008 #include "private/service_p.h"
0009 
0010 #include "config-plasma.h"
0011 
0012 #include <QFile>
0013 #include <QTimer>
0014 
0015 #include <KConfigLoader>
0016 #include <KConfigSkeleton>
0017 #include <KService>
0018 #include <KSharedConfig>
0019 #include <QDebug>
0020 
0021 #include <QStandardPaths>
0022 
0023 #include "debug_p.h"
0024 #include "pluginloader.h"
0025 #include "version.h"
0026 
0027 namespace Plasma
0028 {
0029 Service::Service(QObject *parent)
0030     : QObject(parent)
0031     , d(new ServicePrivate(this))
0032 {
0033 }
0034 
0035 Service::Service(QObject *parent, const QVariantList &args)
0036     : QObject(parent)
0037     , d(new ServicePrivate(this))
0038 {
0039     Q_UNUSED(args)
0040 }
0041 
0042 Service::~Service()
0043 {
0044     delete d;
0045 }
0046 
0047 void Service::setDestination(const QString &destination)
0048 {
0049     d->destination = destination;
0050 }
0051 
0052 QString Service::destination() const
0053 {
0054     return d->destination;
0055 }
0056 
0057 QStringList Service::operationNames() const
0058 {
0059     if (d->operationsMap.isEmpty()) {
0060 #ifndef NDEBUG
0061         // qCDebug(LOG_PLASMA) << "No valid operations scheme has been registered";
0062 #endif
0063         return QStringList();
0064     }
0065 
0066     return d->operationsMap.keys();
0067 }
0068 
0069 QVariantMap Service::operationDescription(const QString &operationName)
0070 {
0071     if (d->operationsMap.isEmpty()) {
0072 #ifndef NDEBUG
0073         // qCDebug(LOG_PLASMA) << "No valid operations scheme has been registered";
0074 #endif
0075         return QVariantMap();
0076     }
0077 
0078     // qCDebug(LOG_PLASMA) << "operation" << operationName
0079     //         << "requested, has keys" << d->operationsMap.keys();
0080     return d->operationsMap.value(operationName);
0081 }
0082 
0083 ServiceJob *Service::startOperationCall(const QVariantMap &description, QObject *parent)
0084 {
0085     // TODO: nested groups?
0086     ServiceJob *job = nullptr;
0087     const QString op = !description.isEmpty() ? description.value(QStringLiteral("_name")).toString() : QString();
0088 
0089     if (d->operationsMap.isEmpty()) {
0090 #ifndef NDEBUG
0091         // qCDebug(LOG_PLASMA) << "No valid operations scheme has been registered";
0092 #endif
0093     } else if (!op.isEmpty() && d->operationsMap.contains(op)) {
0094         if (d->disabledOperations.contains(op)) {
0095 #ifndef NDEBUG
0096             // qCDebug(LOG_PLASMA) << "Operation" << op << "is disabled";
0097 #endif
0098         } else {
0099             QVariantMap map = description;
0100             job = createJob(op, map);
0101         }
0102     } else {
0103 #ifndef NDEBUG
0104         // qCDebug(LOG_PLASMA) << op << "is not a valid group; valid groups are:" << d->operationsMap.keys();
0105 #endif
0106     }
0107 
0108     if (!job) {
0109         job = new NullServiceJob(d->destination, op, this);
0110     }
0111 
0112     job->setParent(parent ? parent : this);
0113     QTimer::singleShot(0, job, SLOT(autoStart()));
0114     return job;
0115 }
0116 
0117 QString Service::name() const
0118 {
0119     return d->name;
0120 }
0121 
0122 void Service::setName(const QString &name)
0123 {
0124     d->name = name;
0125 
0126     // now reset the config, which may be based on our name
0127     d->operationsMap.clear();
0128 
0129     registerOperationsScheme();
0130 
0131     Q_EMIT serviceReady(this);
0132 }
0133 
0134 void Service::setOperationEnabled(const QString &operation, bool enable)
0135 {
0136     if (d->operationsMap.isEmpty() || !d->operationsMap.contains(operation)) {
0137         return;
0138     }
0139 
0140     if (enable) {
0141         d->disabledOperations.remove(operation);
0142     } else {
0143         d->disabledOperations.insert(operation);
0144     }
0145 
0146     Q_EMIT operationEnabledChanged(operation, enable);
0147 }
0148 
0149 bool Service::isOperationEnabled(const QString &operation) const
0150 {
0151     return d->operationsMap.contains(operation) && !d->disabledOperations.contains(operation);
0152 }
0153 
0154 void Service::setOperationsScheme(QIODevice *xml)
0155 {
0156     d->operationsMap.clear();
0157 
0158     // /dev/null is because I need to pass a filename argument to construct a
0159     //  KSharedConfig. We need a config object for the config loader even
0160     //  though we dont' actually want to use any config parts from it,
0161     //  we just want to share the KConfigLoader XML parsing.
0162     KSharedConfigPtr config = KSharedConfig::openConfig(QStringLiteral("/dev/null"), KConfig::SimpleConfig);
0163     KConfigLoader loader(config, xml);
0164 
0165     const auto groupList = loader.groupList();
0166     for (const QString &group : groupList) {
0167         d->operationsMap[group][QStringLiteral("_name")] = group;
0168     }
0169     const auto itemsList = loader.items();
0170     for (KConfigSkeletonItem *item : itemsList) {
0171         d->operationsMap[item->group()][item->key()] = item->property();
0172     }
0173 }
0174 
0175 void Service::registerOperationsScheme()
0176 {
0177     if (!d->operationsMap.isEmpty()) {
0178         // we've already done our job. let's go home.
0179         return;
0180     }
0181 
0182     if (d->name.isEmpty()) {
0183 #ifndef NDEBUG
0184         // qCDebug(LOG_PLASMA) << "No name found";
0185 #endif
0186         return;
0187     }
0188 
0189     const QString path = QStandardPaths::locate(QStandardPaths::GenericDataLocation,
0190                                                 QStringLiteral(PLASMA_RELATIVE_DATA_INSTALL_DIR "/services/") + d->name + QStringLiteral(".operations"));
0191 
0192     if (path.isEmpty()) {
0193 #ifndef NDEBUG
0194         // qCDebug(LOG_PLASMA) << "Cannot find operations description:" << d->name << ".operations";
0195 #endif
0196         return;
0197     }
0198 
0199     QFile file(path);
0200     setOperationsScheme(&file);
0201 }
0202 
0203 } // namespace Plasma
0204 
0205 #include "moc_service.cpp"