aewl
view wm.c @ 27:f96fb3fd8203
added grid mode on Mod1Mask g
| author | Anselm R. Garbe <garbeam@wmii.de> |
|---|---|
| date | Wed, 12 Jul 2006 16:00:51 +0200 |
| parents | e8f627998d6f |
| children | 2e0fb4130bfb |
line source
1 /*
2 * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
3 * See LICENSE file for license details.
4 */
6 #include <errno.h>
8 #include <stdarg.h>
9 #include <stdio.h>
10 #include <stdlib.h>
12 #include <sys/types.h>
13 #include <sys/time.h>
15 #include <X11/cursorfont.h>
16 #include <X11/Xatom.h>
17 #include <X11/Xproto.h>
19 #include "wm.h"
21 /* X structs */
22 Display *dpy;
23 Window root, barwin;
24 Atom wm_atom[WMLast], net_atom[NetLast];
25 Cursor cursor[CurLast];
26 Bool running = True;
27 Bool sel_screen;
29 char statustext[1024], tag[256];
30 int screen, sx, sy, sw, sh, bx, by, bw, bh;
32 Brush brush = {0};
33 Client *clients = NULL;
34 Client *stack = NULL;
36 static Bool other_wm_running;
37 static const char version[] = "gridwm - " VERSION ", (C)opyright MMVI Anselm R. Garbe\n";
38 static int (*x_error_handler) (Display *, XErrorEvent *);
40 static const char *status[] = {
41 "sh", "-c", "echo -n `date '+%Y-%m-%d %H:%M'`"
42 " `uptime | sed 's/.*://; s/,//g'`"
43 " `acpi | awk '{print $4}' | sed 's/,//'`", 0
44 };
46 static void
47 usage()
48 {
49 fputs("usage: gridwm [-v]\n", stderr);
50 exit(1);
51 }
53 static void
54 scan_wins()
55 {
56 unsigned int i, num;
57 Window *wins;
58 XWindowAttributes wa;
59 Window d1, d2;
61 if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
62 for(i = 0; i < num; i++) {
63 if(!XGetWindowAttributes(dpy, wins[i], &wa))
64 continue;
65 if(wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
66 continue;
67 if(wa.map_state == IsViewable)
68 manage(wins[i], &wa);
69 }
70 }
71 if(wins)
72 XFree(wins);
73 }
75 static int
76 win_property(Window w, Atom a, Atom t, long l, unsigned char **prop)
77 {
78 Atom real;
79 int format;
80 unsigned long res, extra;
81 int status;
83 status = XGetWindowProperty(dpy, w, a, 0L, l, False, t, &real, &format,
84 &res, &extra, prop);
86 if(status != Success || *prop == 0) {
87 return 0;
88 }
89 if(res == 0) {
90 free((void *) *prop);
91 }
92 return res;
93 }
95 int
96 win_proto(Window w)
97 {
98 Atom *protocols;
99 long res;
100 int protos = 0;
101 int i;
103 res = win_property(w, wm_atom[WMProtocols], XA_ATOM, 20L,
104 ((unsigned char **) &protocols));
105 if(res <= 0) {
106 return protos;
107 }
108 for(i = 0; i < res; i++) {
109 if(protocols[i] == wm_atom[WMDelete])
110 protos |= WM_PROTOCOL_DELWIN;
111 }
112 free((char *) protocols);
113 return protos;
114 }
116 void
117 send_message(Window w, Atom a, long value)
118 {
119 XEvent e;
121 e.type = ClientMessage;
122 e.xclient.window = w;
123 e.xclient.message_type = a;
124 e.xclient.format = 32;
125 e.xclient.data.l[0] = value;
126 e.xclient.data.l[1] = CurrentTime;
127 XSendEvent(dpy, w, False, NoEventMask, &e);
128 XFlush(dpy);
129 }
131 /*
132 * There's no way to check accesses to destroyed windows, thus
133 * those cases are ignored (especially on UnmapNotify's).
134 * Other types of errors call Xlib's default error handler, which
135 * calls exit().
136 */
137 int
138 error_handler(Display *dpy, XErrorEvent *error)
139 {
140 if(error->error_code == BadWindow
141 || (error->request_code == X_SetInputFocus
142 && error->error_code == BadMatch)
143 || (error->request_code == X_PolyText8
144 && error->error_code == BadDrawable)
145 || (error->request_code == X_PolyFillRectangle
146 && error->error_code == BadDrawable)
147 || (error->request_code == X_PolySegment
148 && error->error_code == BadDrawable)
149 || (error->request_code == X_ConfigureWindow
150 && error->error_code == BadMatch)
151 || (error->request_code == X_GrabKey
152 && error->error_code == BadAccess))
153 return 0;
154 fprintf(stderr, "gridwm: fatal error: request code=%d, error code=%d\n",
155 error->request_code, error->error_code);
156 return x_error_handler(dpy, error); /* may call exit() */
157 }
159 /*
160 * Startup Error handler to check if another window manager
161 * is already running.
162 */
163 static int
164 startup_error_handler(Display *dpy, XErrorEvent *error)
165 {
166 other_wm_running = True;
167 return -1;
168 }
170 static void
171 cleanup()
172 {
173 while(clients)
174 unmanage(clients);
175 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
176 }
178 void
179 run(void *aux)
180 {
181 spawn(dpy, aux);
182 }
184 void
185 quit(void *aux)
186 {
187 running = False;
188 }
190 int
191 main(int argc, char *argv[])
192 {
193 int i;
194 XSetWindowAttributes wa;
195 unsigned int mask;
196 Window w;
197 XEvent ev;
198 fd_set fds;
199 struct timeval t, timeout = {
200 .tv_usec = 0,
201 .tv_sec = STATUSDELAY,
202 };
204 /* command line args */
205 for(i = 1; (i < argc) && (argv[i][0] == '-'); i++) {
206 switch (argv[i][1]) {
207 case 'v':
208 fprintf(stdout, "%s", version);
209 exit(0);
210 break;
211 default:
212 usage();
213 break;
214 }
215 }
217 dpy = XOpenDisplay(0);
218 if(!dpy)
219 error("gridwm: cannot connect X server\n");
221 screen = DefaultScreen(dpy);
222 root = RootWindow(dpy, screen);
224 /* check if another WM is already running */
225 other_wm_running = False;
226 XSetErrorHandler(startup_error_handler);
227 /* this causes an error if some other WM is running */
228 XSelectInput(dpy, root, SubstructureRedirectMask);
229 XFlush(dpy);
231 if(other_wm_running)
232 error("gridwm: another window manager is already running\n");
234 sx = sy = 0;
235 sw = DisplayWidth(dpy, screen);
236 sh = DisplayHeight(dpy, screen);
237 sel_screen = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask);
239 XSetErrorHandler(0);
240 x_error_handler = XSetErrorHandler(error_handler);
242 /* init atoms */
243 wm_atom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
244 wm_atom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
245 net_atom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
246 net_atom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
248 XChangeProperty(dpy, root, net_atom[NetSupported], XA_ATOM, 32,
249 PropModeReplace, (unsigned char *) net_atom, NetLast);
252 /* init cursors */
253 cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
254 cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
255 cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
257 update_keys();
259 /* style */
260 loadcolors(dpy, screen, &brush, BGCOLOR, FGCOLOR, BORDERCOLOR);
261 loadfont(dpy, &brush.font, FONT);
263 wa.override_redirect = 1;
264 wa.background_pixmap = ParentRelative;
265 wa.event_mask = ExposureMask;
267 bx = by = 0;
268 bw = sw;
269 bh = texth(&brush.font);
270 barwin = XCreateWindow(dpy, root, bx, by, bw, bh, 0, DefaultDepth(dpy, screen),
271 CopyFromParent, DefaultVisual(dpy, screen),
272 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
273 XDefineCursor(dpy, barwin, cursor[CurNormal]);
274 XMapRaised(dpy, barwin);
276 brush.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
277 brush.gc = XCreateGC(dpy, root, 0, 0);
279 pipe_spawn(statustext, sizeof(statustext), dpy, (char **)status);
280 draw_bar();
282 wa.event_mask = SubstructureRedirectMask | EnterWindowMask \
283 | LeaveWindowMask;
284 wa.cursor = cursor[CurNormal];
285 XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
287 scan_wins();
289 while(running) {
290 if(XPending(dpy) > 0) {
291 XNextEvent(dpy, &ev);
292 if(handler[ev.type])
293 (handler[ev.type]) (&ev); /* call handler */
294 continue;
295 }
296 FD_ZERO(&fds);
297 FD_SET(ConnectionNumber(dpy), &fds);
298 t = timeout;
299 if(select(ConnectionNumber(dpy) + 1, &fds, NULL, NULL, &t) > 0)
300 continue;
301 else if(errno != EINTR) {
302 pipe_spawn(statustext, sizeof(statustext), dpy, (char **)status);
303 draw_bar();
304 }
305 }
307 cleanup();
308 XCloseDisplay(dpy);
310 return 0;
311 }