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about.cpp
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about.cpp
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/**********************************************************************
*
**********************************************************************
* Copyright (C) 2023 MX Authors
*
* Authors: Adrian <adrian@mxlinux.org>
* MX Linux <http://mxlinux.org>
*
* This is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this package. If not, see <http://www.gnu.org/licenses/>.
**********************************************************************/
#include "about.h"
#include <QApplication>
#include <QFileInfo>
#include <QMessageBox>
#include <QProcess>
#include <QPushButton>
#include <QStandardPaths>
#include <QTextEdit>
#include <QVBoxLayout>
#include <unistd.h>
extern const QString starting_home;
// Display doc as nomal user when run as root
void displayDoc(const QString &url, const QString &title)
{
bool started_as_root = false;
if (qEnvironmentVariable("HOME") == "root") {
started_as_root = true;
qputenv("HOME", starting_home.toUtf8()); // Use original home for theming purposes
}
// Prefer mx-viewer otherwise use xdg-open (use runuser to run that as logname user)
QString executablePath = QStandardPaths::findExecutable("mx-viewer");
if (!executablePath.isEmpty()) {
QProcess::startDetached("mx-viewer", {url, title});
} else {
if (getuid() != 0) {
QProcess::startDetached("xdg-open", {url});
} else {
QProcess proc;
proc.start("logname", {}, QIODevice::ReadOnly);
proc.waitForFinished();
QString user = QString::fromUtf8(proc.readAllStandardOutput()).trimmed();
QProcess::startDetached("runuser", {"-u", user, "--", "xdg-open", url});
}
}
if (started_as_root) {
qputenv("HOME", "/root");
}
}
void displayAboutMsgBox(const QString &title, const QString &message, const QString &licence_url,
const QString &license_title)
{
const auto width = 600;
const auto height = 500;
QMessageBox msgBox(QMessageBox::NoIcon, title, message);
auto *btnLicense = msgBox.addButton(QObject::tr("License"), QMessageBox::HelpRole);
auto *btnChangelog = msgBox.addButton(QObject::tr("Changelog"), QMessageBox::HelpRole);
auto *btnCancel = msgBox.addButton(QObject::tr("Cancel"), QMessageBox::NoRole);
btnCancel->setIcon(QIcon::fromTheme("window-close"));
msgBox.exec();
if (msgBox.clickedButton() == btnLicense) {
displayDoc(licence_url, license_title);
} else if (msgBox.clickedButton() == btnChangelog) {
auto *changelog = new QDialog;
changelog->setWindowTitle(QObject::tr("Changelog"));
changelog->resize(width, height);
auto *text = new QTextEdit(changelog);
text->setReadOnly(true);
QProcess proc;
proc.start(
"zless",
{"/usr/share/doc/" + QFileInfo(QCoreApplication::applicationFilePath()).fileName() + "/changelog.gz"},
QIODevice::ReadOnly);
proc.waitForFinished();
text->setText(proc.readAllStandardOutput());
auto *btnClose = new QPushButton(QObject::tr("&Close"), changelog);
btnClose->setIcon(QIcon::fromTheme("window-close"));
QObject::connect(btnClose, &QPushButton::clicked, changelog, &QDialog::close);
auto *layout = new QVBoxLayout(changelog);
layout->addWidget(text);
layout->addWidget(btnClose);
changelog->setLayout(layout);
changelog->exec();
}
}