diff options
Diffstat (limited to 'vcl/unx/generic/desktopdetect/desktopdetector.cxx')
| -rw-r--r-- | vcl/unx/generic/desktopdetect/desktopdetector.cxx | 343 |
1 files changed, 343 insertions, 0 deletions
diff --git a/vcl/unx/generic/desktopdetect/desktopdetector.cxx b/vcl/unx/generic/desktopdetect/desktopdetector.cxx new file mode 100644 index 000000000000..777e5aa921d3 --- /dev/null +++ b/vcl/unx/generic/desktopdetect/desktopdetector.cxx @@ -0,0 +1,343 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org 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 Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +// MARKER(update_precomp.py): autogen include statement, do not remove +#include "precompiled_vcl.hxx" + +#include <unx/svunx.h> +#include <tools/prex.h> +#include <X11/Xatom.h> +#include <tools/postx.h> + +#include "rtl/ustrbuf.hxx" +#include "osl/module.h" +#include "osl/process.h" +#include "osl/thread.h" + +#include "vclpluginapi.h" + +#include <unistd.h> + +using namespace rtl; + +enum { + DESKTOP_NONE = 0, + DESKTOP_UNKNOWN, + DESKTOP_GNOME, + DESKTOP_KDE, + DESKTOP_KDE4, + DESKTOP_CDE +}; + +static const char * desktop_strings[] = { "none", "unknown", "GNOME", "KDE", "KDE4", "CDE" }; + +static bool is_gnome_desktop( Display* pDisplay ) +{ + bool ret = false; + + // warning: these checks are coincidental, GNOME does not + // explicitly advertise itself + + if ( NULL != getenv( "GNOME_DESKTOP_SESSION_ID" ) ) + ret = true; + + if( ! ret ) + { + 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; + } + XFree( pProperties ); + } + } + } + + if( ! ret ) + { + 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 + XLIB_Window aRoot, aParent, *pChildren = NULL; + 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 = NULL; + XGetWindowProperty( pDisplay, + pChildren[i], + nNetWMNameAtom, + 0, 8, + False, + nUTFAtom, + &nType, + &nFormat, + &nItems, + &nBytes, + &pProp ); + if( pProp && nType == nUTFAtom ) + { + OString aWMName( (sal_Char*)pProp ); + if( aWMName.equalsIgnoreAsciiCase( "gnome-panel" ) ) + ret = true; + } + if( pProp ) + XFree( pProp ); + } + XFree( pChildren ); + } + } + } + + return ret; +} + +static bool bWasXError = false; + +static inline bool WasXError() +{ + bool bRet = bWasXError; + bWasXError = false; + return bRet; +} + +extern "C" +{ + static int autodect_error_handler( Display*, XErrorEvent* ) + { + bWasXError = true; + return 0; + } + + typedef int(* XErrorHandler)(Display*,XErrorEvent*); +} + +static int KDEVersion( Display* pDisplay ) +{ + int nRet = 0; + + Atom nFullSession = XInternAtom( pDisplay, "KDE_FULL_SESSION", True ); + Atom nKDEVersion = XInternAtom( pDisplay, "KDE_SESSION_VERSION", True ); + + if( nFullSession ) + { + if( !nKDEVersion ) + return 3; + + Atom aRealType = None; + int nFormat = 8; + unsigned long nItems = 0; + unsigned long nBytesLeft = 0; + unsigned char* pProperty = NULL; + XGetWindowProperty( pDisplay, + DefaultRootWindow( pDisplay ), + nKDEVersion, + 0, 1, + False, + AnyPropertyType, + &aRealType, + &nFormat, + &nItems, + &nBytesLeft, + &pProperty ); + if( !WasXError() && nItems != 0 && pProperty ) + { + nRet = *reinterpret_cast< sal_Int32* >( pProperty ); + } + if( pProperty ) + { + XFree( pProperty ); + pProperty = NULL; + } + } + return nRet; +} + +static bool is_kde_desktop( Display* pDisplay ) +{ + if ( NULL != getenv( "KDE_FULL_SESSION" ) ) + { + const char *pVer = getenv( "KDE_SESSION_VERSION" ); + if ( !pVer || pVer[0] == '0' ) + { + return true; // does not exist => KDE3 + } + + rtl::OUString aVer( RTL_CONSTASCII_USTRINGPARAM( "3" ) ); + if ( aVer.equalsIgnoreAsciiCaseAscii( pVer ) ) + { + return true; + } + } + + if ( KDEVersion( pDisplay ) == 3 ) + return true; + + return false; +} + +static bool is_kde4_desktop( Display* pDisplay ) +{ + if ( NULL != getenv( "KDE_FULL_SESSION" ) ) + { + rtl::OUString aVer( RTL_CONSTASCII_USTRINGPARAM( "4" ) ); + + const char *pVer = getenv( "KDE_SESSION_VERSION" ); + if ( pVer && aVer.equalsIgnoreAsciiCaseAscii( pVer ) ) + return true; + } + + if ( KDEVersion( pDisplay ) == 4 ) + return true; + + return false; +} + +static bool is_cde_desktop( Display* pDisplay ) +{ + void* pLibrary = NULL; + + Atom nDtAtom = XInternAtom( pDisplay, "_DT_WM_READY", True ); + OUString aPathName( RTL_CONSTASCII_USTRINGPARAM( "file:///usr/dt/lib/libDtSvc.so" ) ); + if( nDtAtom && ( pLibrary = osl_loadModule( aPathName.pData, SAL_LOADMODULE_DEFAULT ) ) ) + { + osl_unloadModule( (oslModule)pLibrary ); + return true; + } + + return false; +} + + +extern "C" +{ + +DESKTOP_DETECTOR_PUBLIC rtl::OUString get_desktop_environment() +{ + rtl::OUStringBuffer aRet( 8 ); + static const char *pOverride = getenv( "OOO_FORCE_DESKTOP" ); + + if ( pOverride && *pOverride ) + { + OString aOver( pOverride ); + + if ( aOver.equalsIgnoreAsciiCase( "cde" ) ) + aRet.appendAscii( desktop_strings[DESKTOP_CDE] ); + if ( aOver.equalsIgnoreAsciiCase( "kde4" ) ) + aRet.appendAscii( desktop_strings[DESKTOP_KDE4] ); + if ( aOver.equalsIgnoreAsciiCase( "gnome" ) ) + aRet.appendAscii( desktop_strings[DESKTOP_GNOME] ); + if ( aOver.equalsIgnoreAsciiCase( "kde" ) ) + aRet.appendAscii( desktop_strings[DESKTOP_KDE] ); + if ( aOver.equalsIgnoreAsciiCase( "none" ) ) + aRet.appendAscii( desktop_strings[DESKTOP_UNKNOWN] ); + } + + if( aRet.getLength() == 0 ) + { + // get display to connect to + const char* pDisplayStr = getenv( "DISPLAY" ); + int nParams = osl_getCommandArgCount(); + OUString aParam; + OString aBParm; + for( int i = 0; i < nParams; i++ ) + { + osl_getCommandArg( i, &aParam.pData ); + if( aParam.equalsAscii( "-headless" ) ) + { + pDisplayStr = NULL; + break; + } + if( i < nParams-1 && (aParam.equalsAscii( "-display" ) || aParam.equalsAscii( "--display" )) ) + { + osl_getCommandArg( i+1, &aParam.pData ); + aBParm = OUStringToOString( aParam, osl_getThreadTextEncoding() ); + pDisplayStr = aBParm.getStr(); + break; + } + } + + // no server at all + if( ! pDisplayStr || !*pDisplayStr ) + aRet.appendAscii( desktop_strings[DESKTOP_NONE] ); + else + { + /* #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 ) + { + XErrorHandler pOldHdl = XSetErrorHandler( autodect_error_handler ); + + if ( is_kde4_desktop( pDisplay ) ) + aRet.appendAscii( desktop_strings[DESKTOP_KDE4] ); + else if ( is_gnome_desktop( pDisplay ) ) + aRet.appendAscii( desktop_strings[DESKTOP_GNOME] ); + else if ( is_cde_desktop( pDisplay ) ) + aRet.appendAscii( desktop_strings[DESKTOP_CDE] ); + else if ( is_kde_desktop( pDisplay ) ) + aRet.appendAscii( desktop_strings[DESKTOP_KDE] ); + else + aRet.appendAscii( desktop_strings[DESKTOP_UNKNOWN] ); + + // set the default handler again + XSetErrorHandler( pOldHdl ); + + XCloseDisplay( pDisplay ); + } + } + } + + return aRet.makeStringAndClear(); +} + +} |