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85 lines
3.3 KiB
85 lines
3.3 KiB
// Copyright (C) 2024 Simon Quigley <tsimonq2@ubuntu.com>
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either version 3
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// of the License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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#include <QApplication>
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#include <QSystemTrayIcon>
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#include <QtDBus/QtDBus>
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#include <QTimer>
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#include <QMessageBox>
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int main(int argc, char *argv[]) {
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QApplication app(argc, argv);
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// Create and set application icon
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QIcon appIcon = QIcon::fromTheme("dialog-information");
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QApplication::setWindowIcon(appIcon);
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// DBus interface to systemd
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QDBusInterface systemd("org.freedesktop.systemd1",
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"/org/freedesktop/systemd1",
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"org.freedesktop.systemd1.Manager",
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QDBusConnection::systemBus());
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// Retrieve current status of snapd.seeded.service, which tracks the preseed process
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QDBusMessage methodCall = systemd.call("GetUnit", "snapd.seeded.service");
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QDBusObjectPath unitPath = methodCall.arguments().at(0).value<QDBusObjectPath>();
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QDBusInterface unit("org.freedesktop.systemd1",
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unitPath.path(),
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"org.freedesktop.systemd1.Unit",
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QDBusConnection::systemBus());
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QVariant activeState = unit.property("ActiveState");
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QVariant subState = unit.property("SubState");
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// System tray icon setup
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QSystemTrayIcon trayIcon(appIcon);
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trayIcon.setToolTip("Snap Installation Monitor");
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// Initial message displayed in the system tray
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auto showMessage = [&trayIcon]() {
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trayIcon.showMessage("Installation Notice", "Finalizing installation of snaps, please wait...",
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QSystemTrayIcon::Information, 15000);
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};
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// If the user clicks the system tray icon, display the notification again
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QObject::connect(&trayIcon, &QSystemTrayIcon::activated, [&](QSystemTrayIcon::ActivationReason reason) {
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if (reason == QSystemTrayIcon::Trigger) {
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showMessage();
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}
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});
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// Exit immediately if the service is "active (exited)", launch the GUI parts otherwise
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if (activeState.toString() == "active" && subState.toString() == "exited") { return 0; }
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trayIcon.show();
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showMessage();
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QTimer timer;
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QObject::connect(&timer, &QTimer::timeout, [&unit, &trayIcon]() {
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QVariant newState = unit.property("ActiveState");
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QVariant newSubState = unit.property("SubState");
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if (newState.toString() == "active" && newSubState.toString() == "exited") {
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trayIcon.hide();
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QMessageBox messageBox;
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messageBox.setIcon(QMessageBox::Information);
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messageBox.setText("Background snap installation is complete.");
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messageBox.setWindowTitle("Installation Complete");
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messageBox.setStandardButtons(QMessageBox::Ok);
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messageBox.exec();
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QApplication::quit();
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}
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});
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timer.start(5000); // Check every 5 seconds
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return app.exec();
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}
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