Use inotify to check for changes to the defaults database. Workaround for
[wmaker-crm.git] / src / shutdown.c
1 /*
2 * Window Maker window manager
3 *
4 * Copyright (c) 1997-2003 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
31 #include "WindowMaker.h"
32 #include "window.h"
33 #include "client.h"
34 #include "funcs.h"
35 #include "properties.h"
36 #include "session.h"
37 #include "winspector.h"
38 #include "wmspec.h"
39
40 extern Atom _XA_WM_DELETE_WINDOW;
41 extern Time LastTimestamp;
42 extern int wScreenCount;
43
44
45 static void wipeDesktop(WScreen *scr);
46
47
48 /*
49 *----------------------------------------------------------------------
50 * Shutdown-
51 * Exits the window manager cleanly. If mode is WSLogoutMode,
52 * the whole X session will be closed, by killing all clients if
53 * no session manager is running or by asking a shutdown to
54 * it if its present.
55 *
56 *----------------------------------------------------------------------
57 */
58 void
59 Shutdown(WShutdownMode mode)
60 {
61 int i;
62 extern int inotifyFD;
63
64 switch (mode) {
65 case WSLogoutMode:
66 #ifdef XSMP_ENABLED
67 wSessionRequestShutdown();
68 break;
69 #else
70 /* fall through */
71 #endif
72 case WSKillMode:
73 case WSExitMode:
74 /* if there is no session manager, send SAVE_YOURSELF to
75 * the clients */
76 #if 0
77 #ifdef XSMP_ENABLED
78 if (!wSessionIsManaged())
79 #endif
80 for (i = 0; i < wScreenCount; i++) {
81 WScreen *scr;
82
83 scr = wScreenWithNumber(i);
84 if (scr) {
85 wSessionSendSaveYourself(scr);
86 }
87 }
88 #endif
89 close(inotifyFD);
90 for (i = 0; i < wScreenCount; i++) {
91 WScreen *scr;
92
93 scr = wScreenWithNumber(i);
94 if (scr) {
95 if (scr->helper_pid)
96 kill(scr->helper_pid, SIGKILL);
97
98 /* if the session is not being managed, save restart info */
99 #ifdef XSMP_ENABLED
100 if (!wSessionIsManaged())
101 #endif
102 wSessionSaveClients(scr);
103
104 wScreenSaveState(scr);
105
106 if (mode == WSKillMode)
107 wipeDesktop(scr);
108 else
109 RestoreDesktop(scr);
110 }
111 }
112 ExecExitScript();
113 Exit(0);
114 break;
115
116 case WSRestartPreparationMode:
117 for (i=0; i<wScreenCount; i++) {
118 WScreen *scr;
119
120 close(inotifyFD);
121 scr = wScreenWithNumber(i);
122 if (scr) {
123 if (scr->helper_pid)
124 kill(scr->helper_pid, SIGKILL);
125 wScreenSaveState(scr);
126 RestoreDesktop(scr);
127 }
128 }
129 break;
130 }
131 }
132
133
134 static void
135 restoreWindows(WMBag *bag, WMBagIterator iter)
136 {
137 WCoreWindow *next;
138 WCoreWindow *core;
139 WWindow *wwin;
140
141
142 if (iter == NULL) {
143 core = WMBagFirst(bag, &iter);
144 } else {
145 core = WMBagNext(bag, &iter);
146 }
147
148 if (core == NULL)
149 return;
150
151 restoreWindows(bag, iter);
152
153 /* go to the end of the list */
154 while (core->stacking->under)
155 core = core->stacking->under;
156
157 while (core) {
158 next = core->stacking->above;
159
160 if (core->descriptor.parent_type==WCLASS_WINDOW) {
161 Window window;
162
163 wwin = core->descriptor.parent;
164 window = wwin->client_win;
165 wUnmanageWindow(wwin, !wwin->flags.internal_window, False);
166 XMapWindow(dpy, window);
167 }
168 core = next;
169 }
170 }
171
172
173 /*
174 *----------------------------------------------------------------------
175 * RestoreDesktop--
176 * Puts the desktop in a usable state when exiting.
177 *
178 * Side effects:
179 * All frame windows are removed and windows are reparented
180 * back to root. Windows that are outside the screen are
181 * brought to a viable place.
182 *
183 *----------------------------------------------------------------------
184 */
185 void
186 RestoreDesktop(WScreen *scr)
187 {
188 if (scr->helper_pid > 0) {
189 kill(scr->helper_pid, SIGTERM);
190 scr->helper_pid = 0;
191 }
192
193 XGrabServer(dpy);
194 wDestroyInspectorPanels();
195
196 /* reparent windows back to the root window, keeping the stacking order */
197 restoreWindows(scr->stacking_list, NULL);
198
199 XUngrabServer(dpy);
200 XSetInputFocus(dpy, PointerRoot, RevertToParent, CurrentTime);
201 wColormapInstallForWindow(scr, NULL);
202 PropCleanUp(scr->root_win);
203 wNETWMCleanup(scr);
204 XSync(dpy, 0);
205 }
206
207
208 /*
209 *----------------------------------------------------------------------
210 * wipeDesktop--
211 * Kills all windows in a screen. Send DeleteWindow to all windows
212 * that support it and KillClient on all windows that don't.
213 *
214 * Side effects:
215 * All managed windows are closed.
216 *
217 * TODO: change to XQueryTree()
218 *----------------------------------------------------------------------
219 */
220 static void
221 wipeDesktop(WScreen *scr)
222 {
223 WWindow *wwin;
224
225 wwin = scr->focused_window;
226 while (wwin) {
227 if (wwin->protocols.DELETE_WINDOW)
228 wClientSendProtocol(wwin, _XA_WM_DELETE_WINDOW, LastTimestamp);
229 else
230 wClientKill(wwin);
231 wwin = wwin->prev;
232 }
233 XSync(dpy, False);
234 }
235