156 lines
4.2 KiB
C++
156 lines
4.2 KiB
C++
/*
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* Copyright (C) 2021 CutefishOS Team.
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*
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* Author: rekols <revenmartin@gmail.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* 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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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "systemappmonitor.h"
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#include <QFileSystemWatcher>
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#include <QRegularExpression>
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#include <QDirIterator>
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#include <QSettings>
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#include <QLocale>
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#define SystemApplicationsFolder "/usr/share/applications"
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static SystemAppMonitor *SELF = nullptr;
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static QByteArray detectDesktopEnvironment()
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{
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const QByteArray desktop = qgetenv("XDG_CURRENT_DESKTOP");
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if (!desktop.isEmpty())
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return desktop.toUpper();
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return QByteArray("UNKNOWN");
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}
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SystemAppMonitor *SystemAppMonitor::self()
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{
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if (SELF == nullptr)
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SELF = new SystemAppMonitor;
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return SELF;
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}
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SystemAppMonitor::SystemAppMonitor(QObject *parent)
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: QObject(parent)
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{
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QFileSystemWatcher *watcher = new QFileSystemWatcher(this);
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watcher->addPath(SystemApplicationsFolder);
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connect(watcher, &QFileSystemWatcher::directoryChanged, this, &SystemAppMonitor::refresh);
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refresh();
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}
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SystemAppMonitor::~SystemAppMonitor()
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{
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while (!m_items.isEmpty())
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delete m_items.takeFirst();
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}
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SystemAppItem *SystemAppMonitor::find(const QString &filePath)
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{
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for (SystemAppItem *item : m_items)
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if (item->path == filePath)
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return item;
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return nullptr;
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}
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void SystemAppMonitor::refresh()
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{
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QStringList addedEntries;
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for (SystemAppItem *item : m_items)
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addedEntries.append(item->path);
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QStringList allEntries;
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QDirIterator it(SystemApplicationsFolder, { "*.desktop" }, QDir::NoFilter, QDirIterator::Subdirectories);
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while (it.hasNext()) {
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const QString &filePath = it.next();
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if (!QFile::exists(filePath))
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continue;
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allEntries.append(filePath);
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}
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for (const QString &filePath : allEntries) {
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if (!addedEntries.contains(filePath)) {
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addApplication(filePath);
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}
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}
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for (SystemAppItem *item : m_items) {
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if (!allEntries.contains(item->path)) {
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removeApplication(item);
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}
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}
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emit refreshed();
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}
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void SystemAppMonitor::addApplication(const QString &filePath)
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{
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if (find(filePath))
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return;
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QSettings desktop(filePath, QSettings::IniFormat);
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desktop.setIniCodec("UTF-8");
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desktop.beginGroup("Desktop Entry");
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if (desktop.contains("OnlyShowIn")) {
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const QString &value = desktop.value("OnlyShowIn").toString();
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if (!value.contains(detectDesktopEnvironment(), Qt::CaseInsensitive)) {
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return;
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}
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}
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if (desktop.value("NoDisplay").toBool() ||
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desktop.value("Hidden").toBool()) {
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return;
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}
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QString appName = desktop.value(QString("Name[%1]").arg(QLocale::system().name())).toString();
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QString appExec = desktop.value("Exec").toString();
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if (appName.isEmpty())
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appName = desktop.value("Name").toString();
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appExec.remove(QRegularExpression("%."));
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appExec.remove(QRegularExpression("^\""));
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// appExec.remove(QRegularExpression(" *$"));
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appExec = appExec.simplified();
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SystemAppItem *item = new SystemAppItem;
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item->path = filePath;
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item->name = appName;
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item->genericName = desktop.value("GenericName").toString();
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item->comment = desktop.value("Comment").toString();
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item->iconName = desktop.value("Icon").toString();
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item->startupWMClass = desktop.value("StartupWMClass").toString();
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item->exec = appExec;
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item->args = appExec.split(" ");
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m_items.append(item);
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}
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void SystemAppMonitor::removeApplication(SystemAppItem *item)
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{
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m_items.removeOne(item);
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item->deleteLater();
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}
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