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 "session.h"
  38 #include "winspector.h"
  39 #ifdef KWM_HINTS
  40 # include "kwm.h"
  41 #endif
  42 #ifdef OLWM_HINTS
  43 # include "openlook.h"
  44 #endif
  45
  46 extern Atom _XA_WM_DELETE_WINDOW;
  47 extern Time LastTimestamp;
  48 extern int wScreenCount;
  49
  50
  51 static void wipeDesktop(WScreen *scr);
  52
  53
  54 /*
  55  *----------------------------------------------------------------------
  56  * Shutdown-
  57  *      Exits the window manager cleanly. If mode is WSLogoutMode,
  58  * the whole X session will be closed, by killing all clients if
  59  * no session manager is running or by asking a shutdown to
  60  * it if its present.
  61  *
  62  *----------------------------------------------------------------------
  63  */
  64 void
  65 Shutdown(WShutdownMode mode)
  66 {
  67     int i;
  68
  69     switch (mode) {
  70      case WSLogoutMode:
  71 #ifdef XSMP_ENABLED
  72         wSessionRequestShutdown();
  73         break;
  74 #else
  75         /* fall through */
  76 #endif
  77      case WSKillMode:
  78      case WSExitMode:
  79         /* if there is no session manager, send SAVE_YOURSELF to
  80          * the clients */
  81 #if 0
  82 #ifdef XSMP_ENABLED
  83         if (!wSessionIsManaged())
  84 #endif
  85             for (i = 0; i < wScreenCount; i++) {
  86                 WScreen *scr;
  87
  88                 scr = wScreenWithNumber(i);
  89                 if (scr) {
  90                     wSessionSendSaveYourself(scr);
  91                 }
  92             }
  93 #endif
  94         for (i = 0; i < wScreenCount; i++) {
  95             WScreen *scr;
  96
  97             scr = wScreenWithNumber(i);
  98             if (scr) {
  99                 if (scr->helper_pid)
 100                     kill(scr->helper_pid, SIGKILL);
 101
 102                 /* if the session is not being managed, save restart info */
 103 #ifdef XSMP_ENABLED
 104                 if (!wSessionIsManaged())
 105 #endif
 106                     wSessionSaveClients(scr);
 107
 108 #ifdef KWM_HINTS
 109                 wKWMShutdown(scr, True);
 110 #endif
 111                 wScreenSaveState(scr);
 112
 113                 if (mode == WSKillMode)
 114                     wipeDesktop(scr);
 115                 else
 116                     RestoreDesktop(scr);
 117             }
 118         }
 119         ExecExitScript();
 120         Exit(0);
 121         break;
 122
 123      case WSRestartPreparationMode:
 124         for (i=0; i<wScreenCount; i++) {
 125             WScreen *scr;
 126
 127             scr = wScreenWithNumber(i);
 128             if (scr) {
 129                 if (scr->helper_pid)
 130                     kill(scr->helper_pid, SIGKILL);
 131 #ifdef KWM_HINTS
 132                 wKWMShutdown(scr, False);
 133 #endif
 134 #ifdef OLWM_HINTS
 135                 wOLWMShutdown(scr);
 136 #endif
 137                 wScreenSaveState(scr);
 138
 139                 RestoreDesktop(scr);
 140             }
 141         }
 142         break;
 143     }
 144 }
 145
 146
 147
 148
 149 /*
 150  *----------------------------------------------------------------------
 151  * RestoreDesktop--
 152  *      Puts the desktop in a usable state when exiting.
 153  *
 154  * Side effects:
 155  *      All frame windows are removed and windows are reparented
 156  * back to root. Windows that are outside the screen are
 157  * brought to a viable place.
 158  *
 159  *----------------------------------------------------------------------
 160  */
 161 void
 162 RestoreDesktop(WScreen *scr)
 163 {
 164     WMBagIterator iter;
 165     WCoreWindow *core;
 166
 167     if (scr->helper_pid > 0) {
 168         kill(scr->helper_pid, SIGTERM);
 169         scr->helper_pid = 0;
 170     }
 171
 172     XGrabServer(dpy);
 173     wDestroyInspectorPanels();
 174
 175     /* reparent windows back to the root window, keeping the stacking order */
 176     for (core = WMBagFirst(scr->stacking_list, &iter);
 177          core != NULL;
 178          core = WMBagNext(scr->stacking_list, &iter)) {
 179         WCoreWindow *next;
 180         WWindow *wwin;
 181
 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