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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xatom.h>
#include <unx/desktops.hxx>
#include <rtl/bootstrap.hxx>
#include <rtl/process.h>
#include <rtl/ustrbuf.hxx>
#include <osl/module.h>
#include <osl/thread.h>
#include <vclpluginapi.h>
#include <unistd.h>
#include <string.h>
#include <comphelper/string.hxx>
static bool is_gnome_desktop( Display* pDisplay )
{
// warning: these checks are coincidental, GNOME does not
// explicitly advertise itself
if ( getenv( "GNOME_DESKTOP_SESSION_ID" ) )
return true;
bool ret = false;
Atom nAtom1 = XInternAtom( pDisplay, "GNOME_SM_PROXY", True );
Atom nAtom2 = XInternAtom( pDisplay, "NAUTILUS_DESKTOP_WINDOW_ID", True );
if( nAtom1 || nAtom2 )
{
int nProperties = 0;
Atom* pProperties = XListProperties( pDisplay, DefaultRootWindow( pDisplay ), &nProperties );
if( pProperties && nProperties )
{
for( int i = 0; i < nProperties; i++ )
if( pProperties[ i ] == nAtom1 ||
pProperties[ i ] == nAtom2 )
{
ret = true;
break;
}
XFree( pProperties );
}
}
if (ret)
return true;
Atom nUTFAtom = XInternAtom( pDisplay, "UTF8_STRING", True );
Atom nNetWMNameAtom = XInternAtom( pDisplay, "_NET_WM_NAME", True );
if( nUTFAtom && nNetWMNameAtom )
{
// another, more expensive check: search for a gnome-panel
::Window aRoot, aParent, *pChildren = nullptr;
unsigned int nChildren = 0;
XQueryTree( pDisplay, DefaultRootWindow( pDisplay ),
&aRoot, &aParent, &pChildren, &nChildren );
if( pChildren && nChildren )
{
for( unsigned int i = 0; i < nChildren && ! ret; i++ )
{
Atom nType = None;
int nFormat = 0;
unsigned long nItems = 0, nBytes = 0;
unsigned char* pProp = nullptr;
XGetWindowProperty( pDisplay,
pChildren[i],
nNetWMNameAtom,
0, 8,
False,
nUTFAtom,
&nType,
&nFormat,
&nItems,
&nBytes,
&pProp );
if( pProp && nType == nUTFAtom )
{
OString aWMName( reinterpret_cast<char*>(pProp) );
if (
(aWMName.equalsIgnoreAsciiCase("gnome-shell")) ||
(aWMName.equalsIgnoreAsciiCase("gnome-panel"))
)
{
ret = true;
}
}
if( pProp )
XFree( pProp );
}
XFree( pChildren );
}
}
return ret;
}
static bool is_plasma5_desktop()
{
static const char* pFullVersion = getenv("KDE_FULL_SESSION");
static const char* pSessionVersion = getenv("KDE_SESSION_VERSION");
return pFullVersion && pSessionVersion && (0 == strcmp(pSessionVersion, "5"));
}
extern "C"
{
DESKTOP_DETECTOR_PUBLIC DesktopType get_desktop_environment()
{
static const char *pOverride = getenv( "OOO_FORCE_DESKTOP" );
if ( pOverride && *pOverride )
{
OString aOver( pOverride );
if ( aOver.equalsIgnoreAsciiCase( "lxqt" ) )
return DESKTOP_LXQT;
if (aOver.equalsIgnoreAsciiCase("plasma5") || aOver.equalsIgnoreAsciiCase("plasma"))
return DESKTOP_PLASMA5;
if ( aOver.equalsIgnoreAsciiCase( "gnome" ) )
return DESKTOP_GNOME;
if ( aOver.equalsIgnoreAsciiCase( "gnome-wayland" ) )
return DESKTOP_GNOME;
if ( aOver.equalsIgnoreAsciiCase( "unity" ) )
return DESKTOP_UNITY;
if ( aOver.equalsIgnoreAsciiCase( "xfce" ) )
return DESKTOP_XFCE;
if ( aOver.equalsIgnoreAsciiCase( "mate" ) )
return DESKTOP_MATE;
if ( aOver.equalsIgnoreAsciiCase( "none" ) )
return DESKTOP_UNKNOWN;
}
OUString plugin;
rtl::Bootstrap::get("SAL_USE_VCLPLUGIN", plugin);
if (plugin == "svp")
return DESKTOP_NONE;
const char *pDesktop = getenv( "XDG_CURRENT_DESKTOP" );
if ( pDesktop )
{
OString aCurrentDesktop( pDesktop, strlen( pDesktop ) );
//it may be separated by colon ( e.g. unity:unity7:ubuntu )
std::vector<OUString> aSplitCurrentDesktop = comphelper::string::split(
OStringToOUString( aCurrentDesktop, RTL_TEXTENCODING_UTF8), ':');
for (const auto& rCurrentDesktopStr : aSplitCurrentDesktop)
{
if ( rCurrentDesktopStr.equalsIgnoreAsciiCase( "unity" ) )
return DESKTOP_UNITY;
else if ( rCurrentDesktopStr.equalsIgnoreAsciiCase( "gnome" ) )
return DESKTOP_GNOME;
else if ( rCurrentDesktopStr.equalsIgnoreAsciiCase( "lxqt" ) )
return DESKTOP_LXQT;
}
}
const char *pSession = getenv( "DESKTOP_SESSION" );
OString aDesktopSession;
if ( pSession )
aDesktopSession = OString( pSession, strlen( pSession ) );
// fast environment variable checks
if ( aDesktopSession.equalsIgnoreAsciiCase( "gnome" ) )
return DESKTOP_GNOME;
else if ( aDesktopSession.equalsIgnoreAsciiCase( "gnome-wayland" ) )
return DESKTOP_GNOME;
else if ( aDesktopSession.equalsIgnoreAsciiCase( "mate" ) )
return DESKTOP_MATE;
else if ( aDesktopSession.equalsIgnoreAsciiCase( "xfce" ) )
return DESKTOP_XFCE;
else if ( aDesktopSession.equalsIgnoreAsciiCase( "lxqt" ) )
return DESKTOP_LXQT;
if (is_plasma5_desktop())
return DESKTOP_PLASMA5;
// tdf#121275 if we still can't tell, and WAYLAND_DISPLAY
// is set, default to gtk3
const char* pWaylandStr = getenv("WAYLAND_DISPLAY");
if (pWaylandStr && *pWaylandStr)
return DESKTOP_GNOME;
// these guys can be slower, with X property fetches,
// round-trips etc. and so are done later.
// get display to connect to
const char* pDisplayStr = getenv( "DISPLAY" );
int nParams = rtl_getAppCommandArgCount();
OUString aParam;
OString aBParm;
for( int i = 0; i < nParams; i++ )
{
rtl_getAppCommandArg( i, &aParam.pData );
if( i < nParams-1 && (aParam == "-display" || aParam == "--display" ) )
{
rtl_getAppCommandArg( i+1, &aParam.pData );
aBParm = OUStringToOString( aParam, osl_getThreadTextEncoding() );
pDisplayStr = aBParm.getStr();
break;
}
}
// no server at all
if( ! pDisplayStr || !*pDisplayStr )
return DESKTOP_NONE;
/* #i92121# workaround deadlocks in the X11 implementation
*/
static const char* pNoXInitThreads = getenv( "SAL_NO_XINITTHREADS" );
/* #i90094#
from now on we know that an X connection will be
established, so protect X against itself
*/
if( ! ( pNoXInitThreads && *pNoXInitThreads ) )
XInitThreads();
Display* pDisplay = XOpenDisplay( pDisplayStr );
if( pDisplay == nullptr )
return DESKTOP_NONE;
DesktopType ret;
if ( is_gnome_desktop( pDisplay ) )
ret = DESKTOP_GNOME;
else
ret = DESKTOP_UNKNOWN;
XCloseDisplay( pDisplay );
return ret;
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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