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 Atom wmatom[WMLast], netatom[NetLast];
20 Cursor cursor[CurLast];
24 int tsel = Tdev; /* default tag */
25 int screen, sx, sy, sw, sh, bx, by, bw, bh, mw;
29 Client *clients = NULL;
33 static int (*xerrorxlib)(Display *, XErrorEvent *);
35 /* static functions */
44 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
55 if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
56 for(i = 0; i < num; i++) {
57 if(!XGetWindowAttributes(dpy, wins[i], &wa))
59 if(wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
61 if(wa.map_state == IsViewable)
70 win_property(Window w, Atom a, Atom t, long l, unsigned char **prop)
74 unsigned long res, extra;
77 status = XGetWindowProperty(dpy, w, a, 0L, l, False, t, &real, &format,
80 if(status != Success || *prop == 0) {
90 * Startup Error handler to check if another window manager
94 xerrorstart(Display *dsply, XErrorEvent *ee)
100 /* extern functions */
105 unsigned char *protocols;
110 res = win_property(w, wmatom[WMProtocols], XA_ATOM, 20L, &protocols);
114 for(i = 0; i < res; i++) {
115 if(protocols[i] == wmatom[WMDelete])
116 protos |= WM_PROTOCOL_DELWIN;
118 free((char *) protocols);
123 sendevent(Window w, Atom a, long value)
127 e.type = ClientMessage;
128 e.xclient.window = w;
129 e.xclient.message_type = a;
130 e.xclient.format = 32;
131 e.xclient.data.l[0] = value;
132 e.xclient.data.l[1] = CurrentTime;
133 XSendEvent(dpy, w, False, NoEventMask, &e);
144 * There's no way to check accesses to destroyed windows, thus
145 * those cases are ignored (especially on UnmapNotify's).
146 * Other types of errors call Xlib's default error handler, which
150 xerror(Display *dpy, XErrorEvent *ee)
152 if(ee->error_code == BadWindow
153 || (ee->request_code == X_SetInputFocus
154 && ee->error_code == BadMatch)
155 || (ee->request_code == X_PolyText8
156 && ee->error_code == BadDrawable)
157 || (ee->request_code == X_PolyFillRectangle
158 && ee->error_code == BadDrawable)
159 || (ee->request_code == X_PolySegment
160 && ee->error_code == BadDrawable)
161 || (ee->request_code == X_ConfigureWindow
162 && ee->error_code == BadMatch)
163 || (ee->request_code == X_GrabKey
164 && ee->error_code == BadAccess))
166 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
167 ee->request_code, ee->error_code);
168 return xerrorxlib(dpy, ee); /* may call exit() */
172 main(int argc, char *argv[])
176 XSetWindowAttributes wa;
178 Bool readstdin = True;
182 for(i = 1; (i < argc) && (argv[i][0] == '-'); i++) {
183 switch (argv[i][1]) {
185 fprintf(stdout, "%s",
186 "dwm-"VERSION", (C)opyright MMVI Anselm R. Garbe\n");
190 eprint("usage: dwm [-v]\n");
195 dpy = XOpenDisplay(0);
197 eprint("dwm: cannot connect X server\n");
199 screen = DefaultScreen(dpy);
200 root = RootWindow(dpy, screen);
202 /* check if another WM is already running */
204 XSetErrorHandler(xerrorstart);
205 /* this causes an error if some other WM is running */
206 XSelectInput(dpy, root, SubstructureRedirectMask);
210 eprint("dwm: another window manager is already running\n");
212 XSetErrorHandler(NULL);
213 xerrorxlib = XSetErrorHandler(xerror);
216 wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
217 wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
218 netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
219 netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
220 XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
221 PropModeReplace, (unsigned char *) netatom, NetLast);
224 cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
225 cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
226 cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
231 dc.bg = getcolor(BGCOLOR);
232 dc.fg = getcolor(FGCOLOR);
233 dc.border = getcolor(BORDERCOLOR);
237 sw = DisplayWidth(dpy, screen);
238 sh = DisplayHeight(dpy, screen);
239 mw = (sw * MASTERW) / 100;
241 wa.override_redirect = 1;
242 wa.background_pixmap = ParentRelative;
243 wa.event_mask = ButtonPressMask | ExposureMask;
247 dc.h = bh = dc.font.height + 4;
248 barwin = XCreateWindow(dpy, root, bx, by, bw, bh, 0, DefaultDepth(dpy, screen),
249 CopyFromParent, DefaultVisual(dpy, screen),
250 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
251 XDefineCursor(dpy, barwin, cursor[CurNormal]);
252 XMapRaised(dpy, barwin);
254 dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
255 dc.gc = XCreateGC(dpy, root, 0, 0);
258 issel = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask);
260 wa.event_mask = SubstructureRedirectMask | EnterWindowMask \
262 wa.cursor = cursor[CurNormal];
264 XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
266 strcpy(stext, "dwm-"VERSION);
269 /* main event loop, reads status text from stdin as well */
274 FD_SET(STDIN_FILENO, &rd);
275 FD_SET(ConnectionNumber(dpy), &rd);
277 i = select(ConnectionNumber(dpy) + 1, &rd, 0, 0, 0);
278 if(i == -1 && errno == EINTR)
281 eprint("select failed\n");
283 if(FD_ISSET(ConnectionNumber(dpy), &rd)) {
284 while(XPending(dpy)) {
285 XNextEvent(dpy, &ev);
287 (handler[ev.type])(&ev); /* call handler */
290 if(readstdin && FD_ISSET(STDIN_FILENO, &rd)) {
293 if((i = getchar()) == EOF) {
294 /* broken pipe/end of producer */
296 strcpy(stext, "broken pipe");
299 if(i == '\n' || n >= sizeof(stext) - 1)