workspace/kcontrol/kxkb/extension.cpp

   1 /*
   2  *  Copyright (C) 2003-2006 Andriy Rysin (rysin@kde.org)
   3  *
   4  *  This program is free software; you can redistribute it and/or modify
   5  *  it under the terms of the GNU General Public License as published by
   6  *  the Free Software Foundation; either version 2 of the License, or
   7  *  (at your option) any later version.
   8  *
   9  *  This program 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
  12  *  GNU General Public License for more details.
  13  *
  14  *  You should have received a copy of the GNU General Public License
  15  *  along with this program; if not, write to the Free Software
  16  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  17  */
  18
  19 #include <string.h>
  20 #include <errno.h>
  21
  22
  23 #include <QX11Info>
  24 #include <QDir>
  25 #include <QFile>
  26
  27 #include <kdebug.h>
  28 #include <kstandarddirs.h>
  29 #include <kprocess.h>
  30
  31 #include <X11/Xatom.h>
  32 #include <X11/Xos.h>
  33 #include <X11/Xlib.h>
  34 #include <X11/XKBlib.h>
  35 #ifndef HAVE_XKLAVIER
  36 #include <X11/extensions/XKBfile.h>
  37 #endif
  38
  39 #include "extension.h"
  40
  41
  42 static const char* SETXKBMAP_SEPARATOR=",";
  43
  44 QString XKBExtension::m_setxkbmap_exe = "";
  45
  46 XKBExtension::XKBExtension(Display *d)
  47 {
  48     if ( d == NULL )
  49         d = QX11Info::display();
  50     m_dpy = d;
  51 }
  52
  53 bool XKBExtension::init()
  54 {
  55     // Verify the Xlib has matching XKB extension.
  56
  57     int major = XkbMajorVersion;
  58     int minor = XkbMinorVersion;
  59
  60     if (!XkbLibraryVersion(&major, &minor))
  61     {
  62         kError() << "Xlib XKB extension " << major << '.' << minor <<
  63             " != " << XkbMajorVersion << '.' << XkbMinorVersion << endl;
  64         return false;
  65     }
  66
  67     // Verify the X server has matching XKB extension.
  68
  69     int opcode_rtrn;
  70     int error_rtrn;
  71 //    int xkb_opcode;
  72     if (!XkbQueryExtension(m_dpy, &opcode_rtrn, &xkb_opcode, &error_rtrn,
  73                          &major, &minor))
  74     {
  75         kError() << "X server XKB extension " << major << '.' << minor <<
  76             " != " << XkbMajorVersion << '.' << XkbMinorVersion << endl;
  77         return false;
  78     }
  79
  80 #ifndef HAVE_XKLAVIER
  81     // Do it, or face horrible memory corrupting bugs
  82     ::XkbInitAtoms(NULL);
  83 #endif
  84
  85     int eventMask = XkbNewKeyboardNotifyMask | XkbStateNotifyMask;
  86     if( !XkbSelectEvents(m_dpy, XkbUseCoreKbd, eventMask, eventMask) ) {
  87         kDebug() << "Couldn't select desired XKB events";
  88         return false;
  89     }
  90
  91     kDebug() << "XKB inited";
  92
  93     return true;
  94 }
  95
  96 XKBExtension::~XKBExtension()
  97 {
  98 }
  99
 100 QString XKBExtension::getSetxkbmapExe()
 101 {
 102     if( m_setxkbmap_exe.isEmpty() ) {
 103         m_setxkbmap_exe = KGlobal::dirs()->findExe("setxkbmap");
 104         if( m_setxkbmap_exe.isEmpty() )
 105             kError() << "Can't find setxkbmap" << endl;
 106     }
 107     return m_setxkbmap_exe;
 108 }
 109
 110 QString XKBExtension::getXkbOptionsCommand(const QStringList& options, bool resetOld)
 111 {
 112     if( options.empty() && ! resetOld )
 113         return "";
 114
 115     QString cmd = "setxkbmap";
 116     if( resetOld )
 117         cmd += " -option";
 118
 119     if( ! options.empty() ) {
 120         cmd += " -option ";
 121         cmd += options.join(SETXKBMAP_SEPARATOR);
 122     }
 123     return cmd;
 124 }
 125
 126 bool XKBExtension::setXkbOptions(const QStringList& options, bool resetOld)
 127 {
 128     kDebug() << "Setting XKB options " << options.join(SETXKBMAP_SEPARATOR);
 129
 130     if( options.empty() && ! resetOld )
 131         return true;
 132
 133     getSetxkbmapExe();
 134     if( m_setxkbmap_exe.isEmpty() )
 135         return false;
 136
 137     KProcess p;
 138     p << m_setxkbmap_exe;
 139
 140     if( resetOld )
 141         p << "-option";
 142     p << "-option" << options.join(SETXKBMAP_SEPARATOR);
 143
 144     kDebug() << "executing" << p.program().join(" ");
 145
 146     return p.execute() == 0;
 147 }
 148
 149 void XKBExtension::executeXmodmap(const QString& configFileName)
 150 {
 151     if( QFile(configFileName).exists() ) {
 152         QString xmodmap_exe = KGlobal::dirs()->findExe("xmodmap");
 153         if( ! xmodmap_exe.isEmpty() ) {
 154             KProcess xmodmapProcess;
 155             xmodmapProcess << xmodmap_exe;
 156             xmodmapProcess << configFileName;
 157             kDebug() << "executing" << xmodmapProcess.program().join(" ");
 158             xmodmapProcess.execute();
 159         }
 160     }
 161 }
 162
 163
 164 QString XKBExtension::getLayoutGroupsCommand(const QString& model, const QStringList& layouts, const QStringList& variants)
 165 {
 166     if( layouts.empty() )
 167         return "";
 168
 169     QString cmd = "setxkbmap";
 170
 171     if( ! model.isEmpty() ) {
 172         cmd += " -model ";
 173         cmd += model;
 174     }
 175
 176     cmd += " -layout ";
 177     cmd += layouts.join(SETXKBMAP_SEPARATOR);
 178
 179     if( ! variants.empty() ) {
 180         cmd += " -variant ";
 181         cmd += variants.join(SETXKBMAP_SEPARATOR);
 182     }
 183     return cmd;
 184 }
 185
 186 bool XKBExtension::setLayoutGroups(const QString& model, const QStringList& layouts, const QStringList& variants,
 187         const QStringList& options, bool resetOldOptions)
 188 {
 189     if( layouts.empty() )
 190         return false;
 191
 192     getSetxkbmapExe();
 193     if( m_setxkbmap_exe.isEmpty() )
 194         return false;
 195
 196     KProcess p;
 197     p << m_setxkbmap_exe;
 198
 199     if( ! model.isEmpty() )
 200         p << "-model" << model;
 201
 202     p << "-layout" << layouts.join(SETXKBMAP_SEPARATOR);
 203
 204     if( ! variants.empty() )
 205         p << "-variant" << variants.join(SETXKBMAP_SEPARATOR);
 206
 207     if( ! options.empty() ) {
 208         if( resetOldOptions )
 209             p << "-option";
 210         p << "-option" << options.join(SETXKBMAP_SEPARATOR);
 211     }
 212
 213     kDebug() << "executing" << p.program().join(" ");
 214
 215     bool setxkbmapOk = (p.execute() == 0);
 216
 217 //    QString configFileName = QDir("/etc/X11/xinit").filePath(".Xmodmap");
 218 //    executeXmodmap(configFileName);
 219     QString configFileName = QDir::home().filePath(".Xmodmap");
 220     executeXmodmap(configFileName);
 221
 222     return setxkbmapOk;
 223 }
 224
 225 bool XKBExtension::setGroup(unsigned int group)
 226 {
 227 //      kDebug() << "Setting group " << group;
 228         return XkbLockGroup( m_dpy, XkbUseCoreKbd, group );
 229 }
 230
 231 unsigned int XKBExtension::getGroup() const
 232 {
 233         XkbStateRec xkbState;
 234         XkbGetState( m_dpy, XkbUseCoreKbd, &xkbState );
 235         return xkbState.group;
 236 }
 237
 238 bool XKBExtension::isGroupSwitchEvent(XEvent* event)
 239 {
 240     XkbEvent *xkbEvent = (XkbEvent*) event;
 241 #define GROUP_CHANGE_MASK \
 242     ( XkbGroupStateMask | XkbGroupBaseMask | XkbGroupLatchMask | XkbGroupLockMask )
 243
 244     return xkbEvent->any.xkb_type == XkbStateNotify && xkbEvent->state.changed & GROUP_CHANGE_MASK;
 245 }
 246
 247 bool XKBExtension::isLayoutSwitchEvent(XEvent* event)
 248 {
 249     XkbEvent *xkbEvent = (XkbEvent*) event;
 250
 251     return //( (xkbEvent->any.xkb_type == XkbMapNotify) && (xkbEvent->map.changed & XkbKeySymsMask) ) ||
 252 /*        || ( (xkbEvent->any.xkb_type == XkbNamesNotify) && (xkbEvent->names.changed & XkbGroupNamesMask) || )*/
 253            (xkbEvent->any.xkb_type == XkbNewKeyboardNotify);
 254 }