mirror of https://github.com/procxx/kepka.git
139 lines
4.0 KiB
C++
139 lines
4.0 KiB
C++
//
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// This file is part of Kepka,
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// an unofficial desktop version of Telegram messaging app,
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// see https://github.com/procxx/kepka
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//
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// Kepka 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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// (at your option) any later version.
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//
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// It 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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// In addition, as a special exception, the copyright holders give permission
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// to link the code of portions of this program with the OpenSSL library.
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//
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// Full license: https://github.com/procxx/kepka/blob/master/LICENSE
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// Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
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// Copyright (c) 2017- Kepka Contributors, https://github.com/procxx
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//
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#include "platform/linux/linux_desktop_environment.h"
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#include "logs.h"
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#include <QDBusInterface>
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#define qstr QString // to avoid #include bloat utils.h
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namespace Platform {
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namespace DesktopEnvironment {
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namespace {
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QString GetEnv(const char *name) {
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auto result = getenv(name);
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auto value = result ? QString::fromLatin1(result) : QString();
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LOG(("Getting DE, %1: '%2'").arg(name).arg(value));
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return value;
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}
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Type Compute() {
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auto xdgCurrentDesktop = GetEnv("XDG_CURRENT_DESKTOP").toLower();
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auto list = xdgCurrentDesktop.split(':', QString::SkipEmptyParts);
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auto desktopSession = GetEnv("DESKTOP_SESSION").toLower();
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auto kdeSession = GetEnv("KDE_SESSION_VERSION");
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if (!list.isEmpty()) {
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if (list.contains("unity")) {
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// gnome-fallback sessions set XDG_CURRENT_DESKTOP to Unity
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// DESKTOP_SESSION can be gnome-fallback or gnome-fallback-compiz
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if (desktopSession.indexOf(QString("gnome-fallback")) >= 0) {
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return Type::Gnome;
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}
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return Type::Unity;
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} else if (list.contains("xfce")) {
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return Type::XFCE;
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} else if (list.contains("pantheon")) {
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return Type::Pantheon;
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} else if (list.contains("gnome")) {
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return Type::Gnome;
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} else if (list.contains("kde")) {
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if (kdeSession == QString("5")) {
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return Type::KDE5;
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}
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return Type::KDE4;
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}
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}
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if (!desktopSession.isEmpty()) {
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if (desktopSession == qstr("gnome") || desktopSession == qstr("mate")) {
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return Type::Gnome;
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} else if (desktopSession == qstr("kde4") || desktopSession == qstr("kde-plasma")) {
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return Type::KDE4;
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} else if (desktopSession == qstr("kde")) {
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// This may mean KDE4 on newer systems, so we have to check.
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if (!kdeSession.isEmpty()) {
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return Type::KDE4;
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}
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return Type::KDE3;
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} else if (desktopSession.indexOf(qstr("xfce")) >= 0 || desktopSession == qstr("xubuntu")) {
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return Type::XFCE;
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}
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}
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// Fall back on some older environment variables.
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// Useful particularly in the DESKTOP_SESSION=default case.
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if (!GetEnv("GNOME_DESKTOP_SESSION_ID").isEmpty()) {
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return Type::Gnome;
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} else if (!GetEnv("KDE_FULL_SESSION").isEmpty()) {
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if (!kdeSession.isEmpty()) {
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return Type::KDE4;
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}
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return Type::KDE3;
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}
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return Type::Other;
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}
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Type ComputeAndLog() {
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auto result = Compute();
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auto name = [result]() -> QString {
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switch (result) {
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case Type::Other: return "Other";
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case Type::Gnome: return "Gnome";
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case Type::KDE3: return "KDE3";
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case Type::KDE4: return "KDE4";
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case Type::KDE5: return "KDE5";
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case Type::Unity: return "Unity";
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case Type::XFCE: return "XFCE";
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case Type::Pantheon: return "Pantheon";
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}
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return QString::number(static_cast<int>(result));
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};
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LOG(("DE: %1").arg(name()));
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return result;
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}
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} // namespace
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// Thanks Chromium.
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Type Get() {
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static const auto result = ComputeAndLog();
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return result;
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}
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bool TryQtTrayIcon() {
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return !IsPantheon();
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}
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bool PreferAppIndicatorTrayIcon() {
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return IsXFCE() || IsUnity() || (IsGnome() && QDBusInterface("org.kde.StatusNotifierWatcher", "/").isValid());
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}
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bool TryUnityCounter() {
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return IsUnity() || IsPantheon();
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}
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} // namespace DesktopEnvironment
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} // namespace Platform
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