diff options
Diffstat (limited to 'vcl/unx/generic/desktopdetect/desktopdetector.cxx')
| -rw-r--r-- | vcl/unx/generic/desktopdetect/desktopdetector.cxx | 253 |
1 files changed, 253 insertions, 0 deletions
diff --git a/vcl/unx/generic/desktopdetect/desktopdetector.cxx b/vcl/unx/generic/desktopdetect/desktopdetector.cxx new file mode 100644 index 000000000..bad134fbd --- /dev/null +++ b/vcl/unx/generic/desktopdetect/desktopdetector.cxx @@ -0,0 +1,253 @@ +/* -*- 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 <unx/desktops.hxx> + +#include <rtl/bootstrap.hxx> +#include <rtl/process.h> +#include <osl/thread.h> + +#include <vclpluginapi.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: */ |