2 * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
3 * See LICENSE file for license details.
13 #include <X11/cursorfont.h>
14 #include <X11/Xatom.h>
15 #include <X11/Xproto.h>
19 /********** CUSTOMIZE **********/
22 [Tscratch] = "scratch",
28 /********** CUSTOMIZE **********/
33 Atom wm_atom[WMLast], net_atom[NetLast];
34 Cursor cursor[CurLast];
38 int tsel = Tdev; /* default tag */
39 int screen, sx, sy, sw, sh, bx, by, bw, bh, mw;
43 Client *clients = NULL;
46 static Bool other_wm_running;
47 static const char version[] =
48 "dwm-" VERSION ", (C)opyright MMVI Anselm R. Garbe\n";
49 static int (*x_error_handler) (Display *, XErrorEvent *);
52 usage() { error("usage: dwm [-v]\n"); }
62 if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
63 for(i = 0; i < num; i++) {
64 if(!XGetWindowAttributes(dpy, wins[i], &wa))
66 if(wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
68 if(wa.map_state == IsViewable)
77 win_property(Window w, Atom a, Atom t, long l, unsigned char **prop)
81 unsigned long res, extra;
84 status = XGetWindowProperty(dpy, w, a, 0L, l, False, t, &real, &format,
87 if(status != Success || *prop == 0) {
99 unsigned char *protocols;
104 res = win_property(w, wm_atom[WMProtocols], XA_ATOM, 20L, &protocols);
108 for(i = 0; i < res; i++) {
109 if(protocols[i] == wm_atom[WMDelete])
110 protos |= WM_PROTOCOL_DELWIN;
112 free((char *) protocols);
117 send_message(Window w, Atom a, long value)
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);
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
138 error_handler(Display *dpy, XErrorEvent *error)
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))
154 fprintf(stderr, "dwm: 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() */
160 * Startup Error handler to check if another window manager
161 * is already running.
164 startup_error_handler(Display *dpy, XErrorEvent *error)
166 other_wm_running = True;
177 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
187 main(int argc, char *argv[])
191 XSetWindowAttributes wa;
196 for(i = 1; (i < argc) && (argv[i][0] == '-'); i++) {
197 switch (argv[i][1]) {
199 fprintf(stdout, "%s", version);
208 dpy = XOpenDisplay(0);
210 error("dwm: cannot connect X server\n");
212 screen = DefaultScreen(dpy);
213 root = RootWindow(dpy, screen);
215 /* check if another WM is already running */
216 other_wm_running = False;
217 XSetErrorHandler(startup_error_handler);
218 /* this causes an error if some other WM is running */
219 XSelectInput(dpy, root, SubstructureRedirectMask);
223 error("dwm: another window manager is already running\n");
226 x_error_handler = XSetErrorHandler(error_handler);
229 wm_atom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
230 wm_atom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
231 net_atom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
232 net_atom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
233 XChangeProperty(dpy, root, net_atom[NetSupported], XA_ATOM, 32,
234 PropModeReplace, (unsigned char *) net_atom, NetLast);
237 cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
238 cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
239 cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
244 dc.bg = initcolor(BGCOLOR);
245 dc.fg = initcolor(FGCOLOR);
246 dc.border = initcolor(BORDERCOLOR);
250 sw = DisplayWidth(dpy, screen);
251 sh = DisplayHeight(dpy, screen);
252 mw = (sw * MASTERW) / 100;
254 wa.override_redirect = 1;
255 wa.background_pixmap = ParentRelative;
256 wa.event_mask = ButtonPressMask | ExposureMask;
260 dc.h = bh = dc.font.height + 4;
261 barwin = XCreateWindow(dpy, root, bx, by, bw, bh, 0, DefaultDepth(dpy, screen),
262 CopyFromParent, DefaultVisual(dpy, screen),
263 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
264 XDefineCursor(dpy, barwin, cursor[CurNormal]);
265 XMapRaised(dpy, barwin);
267 issel = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask);
269 wa.event_mask = SubstructureRedirectMask | EnterWindowMask \
271 wa.cursor = cursor[CurNormal];
273 XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
275 dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
276 dc.gc = XCreateGC(dpy, root, 0, 0);
278 strcpy(stext, "dwm-"VERSION);
282 /* main event loop, reads status text from stdin as well */
286 FD_SET(ConnectionNumber(dpy), &rd);
288 i = select(ConnectionNumber(dpy) + 1, &rd, 0, 0, 0);
289 if(i == -1 && errno == EINTR)
292 error("select failed\n");
294 if(FD_ISSET(ConnectionNumber(dpy), &rd) && XPending(dpy) > 0) {
295 XNextEvent(dpy, &ev);
297 (handler[ev.type])(&ev); /* call handler */
299 if(FD_ISSET(0, &rd)) {
301 while((i = getchar()) != '\n' && n < sizeof(stext) - 1)