src/shutdown.c

   1 /*
   2  *  Window Maker window manager
   3  *
   4  *  Copyright (c) 1997, 1998 Alfredo K. Kojima
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  19  *  USA.
  20  */
  21
  22 #include "wconfig.h"
  23
  24 #include <stdlib.h>
  25 #include <signal.h>
  26 #include <unistd.h>
  27
  28 #include <X11/Xlib.h>
  29 #include <X11/Xutil.h>
  30 #include <X11/Intrinsic.h>
  31
  32 #include "WindowMaker.h"
  33 #include "window.h"
  34 #include "client.h"
  35 #include "funcs.h"
  36 #include "properties.h"
  37 #include "winspector.h"
  38 #ifdef KWM_HINTS
  39 #include "kwm.h"
  40 #endif
  41
  42 extern Atom _XA_WM_DELETE_WINDOW;
  43 extern Time LastTimestamp;
  44 extern int wScreenCount;
  45
  46
  47 static void wipeDesktop(WScreen *scr);
  48
  49
  50 /*
  51  *----------------------------------------------------------------------
  52  * Shutdown-
  53  *      Exits the window manager cleanly. If mode is WSLogoutMode,
  54  * the whole X session will be closed, by killing all clients if
  55  * no session manager is running or by asking a shutdown to
  56  * it if its present.
  57  *
  58  *----------------------------------------------------------------------
  59  */
  60 void
  61 Shutdown(WShutdownMode mode)
  62 {
  63     int i;
  64
  65     switch (mode) {
  66      case WSExitMode:
  67         for (i=0; i<wScreenCount; i++) {
  68             WScreen *scr;
  69
  70             scr = wScreenWithNumber(i);
  71             if (scr) {
  72                 if (scr->helper_pid)
  73                     kill(scr->helper_pid, SIGKILL);
  74
  75 #ifdef KWM_HINTS
  76                 wKWMShutdown(scr, True);
  77 #endif
  78                 wScreenSaveState(scr);
  79
  80                 RestoreDesktop(scr);
  81             }
  82         }
  83
  84         ExecExitScript();
  85         Exit(0);
  86         break;
  87
  88      case WSLogoutMode:
  89 #ifdef R6SM
  90         wSessionRequestShutdown();
  91         break;
  92 #else
  93         /* fall through */
  94 #endif
  95      case WSKillMode:
  96         for (i=0; i<wScreenCount; i++) {
  97             WScreen *scr;
  98
  99             scr = wScreenWithNumber(i);
 100             if (scr) {
 101                 if (scr->helper_pid)
 102                     kill(scr->helper_pid, SIGKILL);
 103 #ifdef KWM_HINTS
 104                 wKWMShutdown(scr, True);
 105 #endif
 106                 wScreenSaveState(scr);
 107
 108                 wipeDesktop(scr);
 109             }
 110         }
 111         ExecExitScript();
 112         Exit(0);
 113         break;
 114
 115      case WSRestartPreparationMode:
 116         for (i=0; i<wScreenCount; i++) {
 117             WScreen *scr;
 118
 119             scr = wScreenWithNumber(i);
 120             if (scr) {
 121                 if (scr->helper_pid)
 122                     kill(scr->helper_pid, SIGKILL);
 123 #ifdef KWM_HINTS
 124                 wKWMShutdown(scr, False);
 125 #endif
 126                 wScreenSaveState(scr);
 127
 128                 RestoreDesktop(scr);
 129             }
 130         }
 131         break;
 132     }
 133 }
 134
 135
 136
 137
 138 /*
 139  *----------------------------------------------------------------------
 140  * RestoreDesktop--
 141  *      Puts the desktop in a usable state when exiting.
 142  *
 143  * Side effects:
 144  *      All frame windows are removed and windows are reparented
 145  * back to root. Windows that are outside the screen are
 146  * brought to a viable place.
 147  *
 148  *----------------------------------------------------------------------
 149  */
 150 void
 151 RestoreDesktop(WScreen *scr)
 152 {
 153     int i;
 154
 155     if (scr->helper_pid) {
 156         kill(scr->helper_pid, SIGTERM);
 157         scr->helper_pid = 0;
 158     }
 159
 160     XGrabServer(dpy);
 161     wDestroyInspectorPanels();
 162
 163     /* reparent windows back to the root window, keeping the stacking order */
 164     for (i=0; i<MAX_WINDOW_LEVELS; i++) {
 165         WCoreWindow *core, *next;
 166         WWindow *wwin;
 167
 168         if (!scr->stacking_list[i])
 169             continue;
 170
 171         core = scr->stacking_list[i];
 172         /* go to the end of the list */
 173         while (core->stacking->under)
 174             core = core->stacking->under;
 175
 176         while (core) {
 177             next = core->stacking->above;
 178
 179             if (core->descriptor.parent_type==WCLASS_WINDOW) {
 180                 wwin = core->descriptor.parent;
 181                 wwin->flags.mapped=1;
 182                 wUnmanageWindow(wwin, !wwin->flags.internal_window);
 183             }
 184             core = next;
 185         }
 186     }
 187
 188     XUngrabServer(dpy);
 189     XSetInputFocus(dpy, PointerRoot, RevertToParent, CurrentTime);
 190     wColormapInstallForWindow(scr, NULL);
 191     PropCleanUp(scr->root_win);
 192     XSync(dpy, 0);
 193 }
 194
 195
 196 /*
 197  *----------------------------------------------------------------------
 198  * wipeDesktop--
 199  *      Kills all windows in a screen. Send DeleteWindow to all windows
 200  * that support it and KillClient on all windows that don't.
 201  *
 202  * Side effects:
 203  *      All managed windows are closed.
 204  *
 205  * TODO: change to XQueryTree()
 206  *----------------------------------------------------------------------
 207  */
 208 static void
 209 wipeDesktop(WScreen *scr)
 210 {
 211     WWindow *wwin;
 212
 213     wwin = scr->focused_window;
 214     while (wwin) {
 215         if (wwin->protocols.DELETE_WINDOW)
 216             wClientSendProtocol(wwin, _XA_WM_DELETE_WINDOW, LastTimestamp);
 217         else
 218             wClientKill(wwin);
 219         wwin = wwin->prev;
 220     }
 221     XSync(dpy, False);
 222 }
 223