workspace/kwin/killwindow.cpp

   1 /********************************************************************
   2  KWin - the KDE window manager
   3  This file is part of the KDE project.
   4
   5 Copyright (C) 1999, 2000 Matthias Ettrich <ettrich@kde.org>
   6 Copyright (C) 2003 Lubos Lunak <l.lunak@kde.org>
   7
   8 This program is free software; you can redistribute it and/or modify
   9 it under the terms of the GNU General Public License as published by
  10 the Free Software Foundation; either version 2 of the License, or
  11 (at your option) any later version.
  12
  13 This program is distributed in the hope that it will be useful,
  14 but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 GNU General Public License for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 *********************************************************************/
  21
  22 //#ifndef QT_CLEAN_NAMESPACE
  23 //#define QT_CLEAN_NAMESPACE
  24 //#endif
  25 #include "killwindow.h"
  26 #include <QCursor>
  27 #include <X11/Xlib.h>
  28 #include <X11/keysym.h>
  29 #include <X11/keysymdef.h>
  30 #include <X11/cursorfont.h>
  31 #include <QX11Info>
  32
  33 namespace KWin
  34 {
  35
  36 KillWindow::KillWindow( Workspace* ws )
  37     : workspace( ws )
  38     {
  39     }
  40
  41 KillWindow::~KillWindow()
  42     {
  43     }
  44
  45 void KillWindow::start()
  46     {
  47     static Cursor kill_cursor = 0;
  48     if (!kill_cursor)
  49         kill_cursor = XCreateFontCursor(display(), XC_pirate);
  50
  51     if (XGrabPointer(display(), rootWindow(), False,
  52                      ButtonPressMask | ButtonReleaseMask |
  53                      PointerMotionMask |
  54                      EnterWindowMask | LeaveWindowMask,
  55                      GrabModeAsync, GrabModeAsync, None,
  56                      kill_cursor, CurrentTime) == GrabSuccess)
  57         {
  58         grabXKeyboard();
  59
  60         XEvent ev;
  61         int return_pressed  = 0;
  62         int escape_pressed  = 0;
  63         int button_released = 0;
  64
  65         grabXServer();
  66
  67         while (!return_pressed && !escape_pressed && !button_released)
  68             {
  69             XMaskEvent(display(), KeyPressMask | ButtonPressMask |
  70                        ButtonReleaseMask | PointerMotionMask, &ev);
  71
  72             if (ev.type == KeyPress)
  73                 {
  74                 int kc = XKeycodeToKeysym(display(), ev.xkey.keycode, 0);
  75                 int mx = 0;
  76                 int my = 0;
  77                 return_pressed = (kc == XK_Return) || (kc == XK_space);
  78                 escape_pressed = (kc == XK_Escape);
  79                 if (kc == XK_Left)  mx = -10;
  80                 if (kc == XK_Right) mx = 10;
  81                 if (kc == XK_Up)    my = -10;
  82                 if (kc == XK_Down)  my = 10;
  83                 if (ev.xkey.state & ControlMask)
  84                     {
  85                     mx /= 10;
  86                     my /= 10;
  87                     }
  88                 QCursor::setPos(cursorPos()+QPoint(mx, my));
  89                 }
  90
  91             if (ev.type == ButtonRelease)
  92                 {
  93                 button_released = (ev.xbutton.button == Button1);
  94                 if ( ev.xbutton.button == Button3 )
  95                     {
  96                     escape_pressed = true;
  97                     break;
  98                     }
  99                 if( ev.xbutton.button == Button1 || ev.xbutton.button == Button2 )
 100                     workspace->killWindowId(ev.xbutton.subwindow);
 101                 }
 102             continue;
 103             }
 104         if (return_pressed)
 105             {
 106             Window root, child;
 107             int dummy1, dummy2, dummy3, dummy4;
 108             unsigned int dummy5;
 109             if( XQueryPointer( display(), rootWindow(), &root, &child,
 110                 &dummy1, &dummy2, &dummy3, &dummy4, &dummy5 ) == true
 111                 && child != None )
 112                 workspace->killWindowId( child );
 113             }
 114
 115         ungrabXServer();
 116         ungrabXKeyboard();
 117         XUngrabPointer(display(), CurrentTime);
 118         }
 119     }
 120
 121 } // namespace