kcms/desktoptheme/plasma-apply-desktoptheme.cpp

0001 /*
0002     SPDX-FileCopyrightText: 2021 Dan Leinir Turthra Jensen <admin@leinir.dk>
0003
0004     SPDX-License-Identifier: LGPL-2.0-only
0005 */
0006
0007 #include "themesmodel.h"
0008
0009 #include <Plasma/Theme>
0010
0011 #include <KLocalizedString>
0012
0013 #include <QApplication>
0014 #include <QCommandLineParser>
0015 #include <QDebug>
0016 #include <QTimer>
0017
0018 int main(int argc, char **argv)
0019 {
0020     // This is a CLI application, but we require at least a QGuiApplication for things
0021     // in Plasma::Theme, so let's just roll with one of these
0022     QApplication app(argc, argv);
0023     QCoreApplication::setApplicationName(QStringLiteral("plasma-apply-desktoptheme"));
0024     QCoreApplication::setApplicationVersion(QStringLiteral("1.0"));
0025     QCoreApplication::setOrganizationDomain(QStringLiteral("kde.org"));
0026     KLocalizedString::setApplicationDomain("plasma-apply-desktoptheme");
0027
0028     QCommandLineParser *parser = new QCommandLineParser;
0029     parser->addHelpOption();
0030     parser->setApplicationDescription(
0031         i18n("This tool allows you to set the theme of the current Plasma session, without accidentally setting it to one that is either not available, or "
0032              "which is already set."));
0033     parser->addPositionalArgument(
0034         QStringLiteral("themename"),
0035         i18n("The name of the theme you wish to set for your current Plasma session (passing a full path will only use the last part of the path)"));
0036     parser->addOption(QCommandLineOption(QStringLiteral("list-themes"), i18n("Show all the themes available on the system (and which is the current theme)")));
0037     parser->process(app);
0038
0039     int errorCode{0};
0040     QTextStream ts(stdout);
0041     ThemesModel *model{new ThemesModel(&app)};
0042     if (!parser->positionalArguments().isEmpty()) {
0043         QString requestedTheme{parser->positionalArguments().first()};
0044         const QString dirSplit{"/"};
0045         if (requestedTheme.contains(dirSplit)) {
0046             requestedTheme = requestedTheme.split(dirSplit, Qt::SkipEmptyParts).last();
0047         }
0048         if (Plasma::Theme().themeName() == requestedTheme) {
0049             ts << i18n("The requested theme \"%1\" is already set as the theme for the current Plasma session.", requestedTheme) << Qt::endl;
0050             // Not an error condition really, let's just ignore that
0051         } else {
0052             bool found{false};
0053             QStringList availableThemes;
0054             model->load();
0055             for (int i = 0; i < model->rowCount(); ++i) {
0056                 QString currentTheme{model->data(model->index(i), ThemesModel::PluginNameRole).toString()};
0057                 if (currentTheme == requestedTheme) {
0058                     Plasma::Theme().setThemeName(requestedTheme);
0059                     found = true;
0060                     break;
0061                 }
0062                 availableThemes << currentTheme;
0063             }
0064             if (found) {
0065                 ts << i18n("The current Plasma session's theme has been set to %1", requestedTheme) << Qt::endl;
0066             } else {
0067                 ts << i18n("Could not find theme \"%1\". The theme should be one of the following options: %2",
0068                            requestedTheme,
0069                            availableThemes.join(QLatin1String{", "}))
0070                    << Qt::endl;
0071                 errorCode = -1;
0072             }
0073         }
0074     } else if (parser->isSet(QStringLiteral("list-themes"))) {
0075         ts << i18n("You have the following Plasma themes on your system:") << Qt::endl;
0076         model->load();
0077         for (int i = 0; i < model->rowCount(); ++i) {
0078             QString themeName{model->data(model->index(i), ThemesModel::PluginNameRole).toString()};
0079             if (Plasma::Theme().themeName() == themeName) {
0080                 ts << QString(" * %1 (current theme for this Plasma session)").arg(themeName) << Qt::endl;
0081             } else {
0082                 ts << QString(" * %1").arg(themeName) << Qt::endl;
0083             }
0084         }
0085     } else {
0086         parser->showHelp();
0087     }
0088     QTimer::singleShot(0, &app, [&app, &errorCode]() {
0089         app.exit(errorCode);
0090     });
0091
0092     return app.exec();
0093 }