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 #ifdef OLWM_HINTS
  42 # include "openlook.h"
  43 #endif
  44
  45 extern Atom _XA_WM_DELETE_WINDOW;
  46 extern Time LastTimestamp;
  47 extern int wScreenCount;
  48
  49
  50 static void wipeDesktop(WScreen *scr);
  51
  52
  53 /*
  54  *----------------------------------------------------------------------
  55  * Shutdown-
  56  *      Exits the window manager cleanly. If mode is WSLogoutMode,
  57  * the whole X session will be closed, by killing all clients if
  58  * no session manager is running or by asking a shutdown to
  59  * it if its present.
  60  *
  61  *----------------------------------------------------------------------
  62  */
  63 void
  64 Shutdown(WShutdownMode mode)
  65 {
  66     int i;
  67
  68     switch (mode) {
  69      case WSLogoutMode:
  70 #ifdef XSMP_ENABLED
  71         wSessionRequestShutdown();
  72         break;
  73 #else
  74         /* fall through */
  75 #endif
  76      case WSKillMode:
  77      case WSExitMode:
  78         /* if there is no session manager, send SAVE_YOURSELF to
  79          * the clients */
  80 #if 0
  81 #ifdef XSMP_ENABLED
  82         if (!wSessionIsManaged())
  83 #endif
  84             for (i = 0; i < wScreenCount; i++) {
  85                 WScreen *scr;
  86
  87                 scr = wScreenWithNumber(i);
  88                 if (scr) {
  89                     wSessionSendSaveYourself(scr);
  90                 }
  91             }
  92 #endif
  93         for (i = 0; i < wScreenCount; i++) {
  94             WScreen *scr;
  95
  96             scr = wScreenWithNumber(i);
  97             if (scr) {
  98                 if (scr->helper_pid)
  99                     kill(scr->helper_pid, SIGKILL);
 100
 101                 /* if the session is not being managed, save restart info */
 102 #ifdef XSMP_ENABLED
 103                 if (!wSessionIsManaged())
 104 #endif
 105                     wSessionSaveClients(scr);
 106
 107 #ifdef KWM_HINTS
 108                 wKWMShutdown(scr, True);
 109 #endif
 110                 wScreenSaveState(scr);
 111
 112                 if (mode == WSKillMode)
 113                     wipeDesktop(scr);
 114                 else
 115                     RestoreDesktop(scr);
 116             }
 117         }
 118         ExecExitScript();
 119         Exit(0);
 120         break;
 121
 122      case WSRestartPreparationMode:
 123         for (i=0; i<wScreenCount; i++) {
 124             WScreen *scr;
 125
 126             scr = wScreenWithNumber(i);
 127             if (scr) {
 128                 if (scr->helper_pid)
 129                     kill(scr->helper_pid, SIGKILL);
 130 #ifdef KWM_HINTS
 131                 wKWMShutdown(scr, False);
 132 #endif
 133 #ifdef OLWM_HINTS
 134                 wOLWMShutdown(scr);
 135 #endif
 136                 wScreenSaveState(scr);
 137
 138                 RestoreDesktop(scr);
 139             }
 140         }
 141         break;
 142     }
 143 }
 144
 145
 146
 147
 148 /*
 149  *----------------------------------------------------------------------
 150  * RestoreDesktop--
 151  *      Puts the desktop in a usable state when exiting.
 152  *
 153  * Side effects:
 154  *      All frame windows are removed and windows are reparented
 155  * back to root. Windows that are outside the screen are
 156  * brought to a viable place.
 157  *
 158  *----------------------------------------------------------------------
 159  */
 160 void
 161 RestoreDesktop(WScreen *scr)
 162 {
 163     int i;
 164
 165     if (scr->helper_pid > 0) {
 166         kill(scr->helper_pid, SIGTERM);
 167         scr->helper_pid = 0;
 168     }
 169
 170     XGrabServer(dpy);
 171     wDestroyInspectorPanels();
 172
 173     /* reparent windows back to the root window, keeping the stacking order */
 174     for (i=0; i<MAX_WINDOW_LEVELS; i++) {
 175         WCoreWindow *core, *next;
 176         WWindow *wwin;
 177
 178         if (!scr->stacking_list[i])
 179             continue;
 180
 181         core = scr->stacking_list[i];
 182         /* go to the end of the list */
 183         while (core->stacking->under)
 184             core = core->stacking->under;
 185
 186         while (core) {
 187             next = core->stacking->above;
 188
 189             if (core->descriptor.parent_type==WCLASS_WINDOW) {
 190                 Window window;
 191
 192                 wwin = core->descriptor.parent;
 193                 window = wwin->client_win;
 194                 wUnmanageWindow(wwin, !wwin->flags.internal_window, False);
 195                 XMapWindow(dpy, window);
 196             }
 197             core = next;
 198         }
 199     }
 200
 201     XUngrabServer(dpy);
 202     XSetInputFocus(dpy, PointerRoot, RevertToParent, CurrentTime);
 203     wColormapInstallForWindow(scr, NULL);
 204     PropCleanUp(scr->root_win);
 205     XSync(dpy, 0);
 206 }
 207
 208
 209 /*
 210  *----------------------------------------------------------------------
 211  * wipeDesktop--
 212  *      Kills all windows in a screen. Send DeleteWindow to all windows
 213  * that support it and KillClient on all windows that don't.
 214  *
 215  * Side effects:
 216  *      All managed windows are closed.
 217  *
 218  * TODO: change to XQueryTree()
 219  *----------------------------------------------------------------------
 220  */
 221 static void
 222 wipeDesktop(WScreen *scr)
 223 {
 224     WWindow *wwin;
 225
 226     wwin = scr->focused_window;
 227     while (wwin) {
 228         if (wwin->protocols.DELETE_WINDOW)
 229             wClientSendProtocol(wwin, _XA_WM_DELETE_WINDOW, LastTimestamp);
 230         else
 231             wClientKill(wwin);
 232         wwin = wwin->prev;
 233     }
 234     XSync(dpy, False);
 235 }
 236