Differential D21725 Diff 59529 startkde/startplasma-x11.cpp

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startkde/startplasma-x11.cpp

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1		/* This file is part of the KDE project
2		Copyright (C) 2019 Aleix Pol Gonzalez <aleixpol@kde.org>
3
4		This library is free software; you can redistribute it and/or
5		modify it under the terms of the GNU Library General Public
6		License as published by the Free Software Foundation; either
7		version 2 of the License, or (at your option) any later version.
8
9		This library is distributed in the hope that it will be useful,
10		but WITHOUT ANY WARRANTY; without even the implied warranty of
11		MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12		Library General Public License for more details.
13
14		You should have received a copy of the GNU Library General Public License
15		along with this library; see the file COPYING.LIB. If not, write to
16		the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17		Boston, MA 02110-1301, USA.
18		*/
19
20		#include "startplasma.h"
21
22		#include <signal.h>
23		#include <unistd.h>
24		#include <KConfig>
25		#include <KConfigGroup>
26
27		void sighupHandler(int)
28		{
29		out << "GOT SIGHUP\n";
30		}
31
32		int main(int /argc/, char** /argv/)
33		{
34		// When the X server dies we get a HUP signal from xinit. We must ignore it
35		// because we still need to do some cleanup.
36		signal(SIGHUP, sighupHandler);
37
38		// Boot sequence:
39		//
40		// kdeinit is used to fork off processes which improves memory usage
41		// and startup time.
42		//
43		// * kdeinit starts klauncher first.
44		// * Then kded is started. kded is responsible for keeping the sycoca
45		// database up to date. When an up to date database is present it goes
46		// into the background and the startup continues.
47		// * Then kdeinit starts kcminit. kcminit performs initialisation of
48		// certain devices according to the user's settings
49		//
50		// * Then ksmserver is started which takes control of the rest of the startup sequence
51
52		// Check if a Plasma session already is running and whether it's possible to connect to X
53		switch (kCheckRunning()) {
54		case NoX11:
55		out << "$DISPLAY is not set or cannot connect to the X server.\n";
56		return 1;
57		case PlasmaRunning:
58		messageBox(QStringLiteral("Plasma seems to be already running on this display.\n"));
59		return 1;
60		case NoPlasmaRunning:
61		break;
62		}
63
64		createConfigDirectory();
65		runStartupConfig();
66
67		//Do not sync any of this section with the wayland versions as there scale factors are
68		//sent properly over wl_output
69
70		{
71		KConfig cfg(QStringLiteral("kdeglobals"));
72
73		const auto screenScaleFactors = cfg.group("KScreen").readEntry("ScreenScaleFactors", QByteArray());
74		if (!screenScaleFactors.isEmpty()) {
75		qputenv("QT_SCREEN_SCALE_FACTORS", screenScaleFactors);
76		if (screenScaleFactors == "2" \|\| screenScaleFactors == "3") {
77		qputenv("GDK_SCALE", screenScaleFactors);
78		qputenv("GDK_DPI_SCALE", QByteArray::number(1/screenScaleFactors.toInt(), 'g', 3));
	broulikUnsubmitted Done Won't that do an integer division? broulik: Won't that do an integer division?
79		}
80		}
81		}
82
83		setupCursor(false);
84		setupFontDpi();
85		QScopedPointer<QProcess, KillBeforeDeleter> ksplash(setupKSplash());
86
87		runEnvironmentScripts();
88
89		out << "startkde: Starting up...\n";
90
91		setupPlasmaEnvironment();
92		setupX11();
93
94		if (!syncDBusEnvironment()) {
95		// Startup error
96		messageBox(QStringLiteral("Could not sync environment to dbus.\n"));
97		return 1;
98		}
99
100		if (!startKDEInit())
101		return 1;
102
103		if (!startKSMServer())
104		return 1;
105
106		// Anything after here is logout
107		// It is not called after shutdown/restart
108		waitForKonqi();
109
110		out << "startkde: Shutting down...\n";
111
112		runSync(QStringLiteral("kdeinit5_shutdown"), {});
113
114		cleanupPlasmaEnvironment();
115		cleanupX11();
116
117		out << "startkde: Done.\n";
118
119		return 0;
120		}