tdesktop/Telegram/SourceFiles/platform/linux/linux_desktop_environment.cpp
John Preston c1aa1c5a0f Enable Qt tray icon in GNOME and derivatives.
As tested in Fedora Qt 5.6.2 tray icon works well in GNOME.
Also add more logs about DE and tray icon. Fix #3175 #3188
2017-04-03 20:46:09 +03:00

132 lines
3.8 KiB
C++

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