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>
21 static int (*xerrorxlib)(Display *, XErrorEvent *);
30 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
41 if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
42 for(i = 0; i < num; i++) {
43 if(!XGetWindowAttributes(dpy, wins[i], &wa))
45 if(wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
47 if(wa.map_state == IsViewable)
56 win_property(Window w, Atom a, Atom t, long l, unsigned char **prop)
60 unsigned long res, extra;
63 status = XGetWindowProperty(dpy, w, a, 0L, l, False, t, &real, &format,
66 if(status != Success || *prop == 0) {
76 * Startup Error handler to check if another window manager
80 xerrorstart(Display *dsply, XErrorEvent *ee)
89 int tsel = Tdev; /* default tag */
90 int screen, sx, sy, sw, sh, bx, by, bw, bh, mw;
91 Atom wmatom[WMLast], netatom[NetLast];
94 Client *clients = NULL;
96 Cursor cursor[CurLast];
104 unsigned char *protocols;
109 res = win_property(w, wmatom[WMProtocols], XA_ATOM, 20L, &protocols);
113 for(i = 0; i < res; i++) {
114 if(protocols[i] == wmatom[WMDelete])
115 protos |= WM_PROTOCOL_DELWIN;
117 free((char *) protocols);
122 sendevent(Window w, Atom a, long value)
126 e.type = ClientMessage;
127 e.xclient.window = w;
128 e.xclient.message_type = a;
129 e.xclient.format = 32;
130 e.xclient.data.l[0] = value;
131 e.xclient.data.l[1] = CurrentTime;
132 XSendEvent(dpy, w, False, NoEventMask, &e);
143 * There's no way to check accesses to destroyed windows, thus those cases are
144 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
145 * default error handler, which calls exit().
148 xerror(Display *dpy, XErrorEvent *ee)
150 if(ee->error_code == BadWindow
151 || (ee->request_code == X_SetInputFocus
152 && ee->error_code == BadMatch)
153 || (ee->request_code == X_PolyText8
154 && ee->error_code == BadDrawable)
155 || (ee->request_code == X_PolyFillRectangle
156 && ee->error_code == BadDrawable)
157 || (ee->request_code == X_PolySegment
158 && ee->error_code == BadDrawable)
159 || (ee->request_code == X_ConfigureWindow
160 && ee->error_code == BadMatch)
161 || (ee->request_code == X_GrabKey
162 && ee->error_code == BadAccess))
164 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
165 ee->request_code, ee->error_code);
166 return xerrorxlib(dpy, ee); /* may call exit() */
170 main(int argc, char *argv[])
174 XSetWindowAttributes wa;
176 Bool readstdin = True;
180 for(i = 1; (i < argc) && (argv[i][0] == '-'); i++) {
181 switch (argv[i][1]) {
183 fprintf(stdout, "%s",
184 "dwm-"VERSION", (C)opyright MMVI Anselm R. Garbe\n");
188 eprint("usage: dwm [-v]\n");
193 dpy = XOpenDisplay(0);
195 eprint("dwm: cannot connect X server\n");
197 screen = DefaultScreen(dpy);
198 root = RootWindow(dpy, screen);
200 /* check if another WM is already running */
202 XSetErrorHandler(xerrorstart);
203 /* this causes an error if some other WM is running */
204 XSelectInput(dpy, root, SubstructureRedirectMask);
208 eprint("dwm: another window manager is already running\n");
210 XSetErrorHandler(NULL);
211 xerrorxlib = XSetErrorHandler(xerror);
214 wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
215 wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
216 netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
217 netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
218 XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
219 PropModeReplace, (unsigned char *) netatom, NetLast);
222 cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
223 cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
224 cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
229 dc.bg = getcolor(BGCOLOR);
230 dc.fg = getcolor(FGCOLOR);
231 dc.border = getcolor(BORDERCOLOR);
235 sw = DisplayWidth(dpy, screen);
236 sh = DisplayHeight(dpy, screen);
237 mw = (sw * MASTERW) / 100;
239 wa.override_redirect = 1;
240 wa.background_pixmap = ParentRelative;
241 wa.event_mask = ButtonPressMask | ExposureMask;
245 dc.h = bh = dc.font.height + 4;
246 barwin = XCreateWindow(dpy, root, bx, by, bw, bh, 0, DefaultDepth(dpy, screen),
247 CopyFromParent, DefaultVisual(dpy, screen),
248 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
249 XDefineCursor(dpy, barwin, cursor[CurNormal]);
250 XMapRaised(dpy, barwin);
252 dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
253 dc.gc = XCreateGC(dpy, root, 0, 0);
256 issel = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask);
258 wa.event_mask = SubstructureRedirectMask | EnterWindowMask \
260 wa.cursor = cursor[CurNormal];
262 XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
264 strcpy(stext, "dwm-"VERSION);
267 /* main event loop, reads status text from stdin as well */
272 FD_SET(STDIN_FILENO, &rd);
273 FD_SET(ConnectionNumber(dpy), &rd);
275 i = select(ConnectionNumber(dpy) + 1, &rd, 0, 0, 0);
276 if(i == -1 && errno == EINTR)
279 eprint("select failed\n");
281 if(FD_ISSET(ConnectionNumber(dpy), &rd)) {
282 while(XPending(dpy)) {
283 XNextEvent(dpy, &ev);
285 (handler[ev.type])(&ev); /* call handler */
288 if(readstdin && FD_ISSET(STDIN_FILENO, &rd)) {
291 if((i = getchar()) == EOF) {
292 /* broken pipe/end of producer */
294 strcpy(stext, "broken pipe");
297 if(i == '\n' || n >= sizeof(stext) - 1)