2 * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
3 * See LICENSE file for license details.
12 #include <sys/select.h>
13 #include <X11/cursorfont.h>
14 #include <X11/keysym.h>
15 #include <X11/Xatom.h>
16 #include <X11/Xproto.h>
20 static int (*xerrorxlib)(Display *, XErrorEvent *);
27 resize(sel, True, TopLeft);
30 XUngrabKey(dpy, AnyKey, AnyModifier, root);
31 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
43 if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
44 for(i = 0; i < num; i++) {
45 if(!XGetWindowAttributes(dpy, wins[i], &wa))
47 if(wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
49 if(wa.map_state == IsViewable)
58 win_property(Window w, Atom a, Atom t, long l, unsigned char **prop)
61 unsigned long res, extra;
64 status = XGetWindowProperty(dpy, w, a, 0L, l, False, t, &real, &format,
67 if(status != Success || *prop == 0) {
77 * Startup Error handler to check if another window manager
81 xerrorstart(Display *dsply, XErrorEvent *ee)
91 int screen, sx, sy, sw, sh, bx, by, bw, bh, mw;
92 unsigned int ntags, numlockmask;
93 Atom wmatom[WMLast], netatom[NetLast];
96 Client *clients = NULL;
98 Cursor cursor[CurLast];
111 res = win_property(w, wmatom[WMProtocols], XA_ATOM, 20L,
112 ((unsigned char **)&protocols));
116 for(i = 0; i < res; i++) {
117 if(protocols[i] == wmatom[WMDelete])
118 protos |= PROTODELWIN;
120 free((char *) protocols);
125 sendevent(Window w, Atom a, long value)
129 e.type = ClientMessage;
130 e.xclient.window = w;
131 e.xclient.message_type = a;
132 e.xclient.format = 32;
133 e.xclient.data.l[0] = value;
134 e.xclient.data.l[1] = CurrentTime;
135 XSendEvent(dpy, w, False, NoEventMask, &e);
146 * There's no way to check accesses to destroyed windows, thus those cases are
147 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
148 * default error handler, which calls exit().
151 xerror(Display *dpy, XErrorEvent *ee)
153 if(ee->error_code == BadWindow
154 || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
155 || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
156 || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
157 || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
158 || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
159 || (ee->request_code == X_GrabKey && ee->error_code == BadAccess))
161 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
162 ee->request_code, ee->error_code);
163 return xerrorxlib(dpy, ee); /* may call exit() */
167 main(int argc, char *argv[])
174 XModifierKeymap *modmap;
175 XSetWindowAttributes wa;
177 if(argc == 2 && !strncmp("-v", argv[1], 3)) {
178 fputs("dwm-"VERSION", (C)opyright MMVI Anselm R. Garbe\n", stdout);
182 eprint("usage: dwm [-v]\n");
184 dpy = XOpenDisplay(0);
186 eprint("dwm: cannot open display\n");
188 xfd = ConnectionNumber(dpy);
189 screen = DefaultScreen(dpy);
190 root = RootWindow(dpy, screen);
193 XSetErrorHandler(xerrorstart);
194 /* this causes an error if some other window manager is running */
195 XSelectInput(dpy, root, SubstructureRedirectMask);
199 eprint("dwm: another window manager is already running\n");
202 XSetErrorHandler(NULL);
203 xerrorxlib = XSetErrorHandler(xerror);
207 wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
208 wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
209 netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
210 netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
211 XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
212 PropModeReplace, (unsigned char *) netatom, NetLast);
215 cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
216 cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
217 cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
219 modmap = XGetModifierMapping(dpy);
220 for (i = 0; i < 8; i++) {
221 for (j = 0; j < modmap->max_keypermod; j++) {
222 if(modmap->modifiermap[i * modmap->max_keypermod + j] == XKeysymToKeycode(dpy, XK_Num_Lock))
223 numlockmask = (1 << i);
228 wa.event_mask = SubstructureRedirectMask | SubstructureNotifyMask | EnterWindowMask | LeaveWindowMask;
229 wa.cursor = cursor[CurNormal];
230 XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
235 for(ntags = 0; tags[ntags]; ntags++);
236 seltag = emallocz(sizeof(Bool) * ntags);
237 seltag[DEFTAG] = True;
240 dc.bg = getcolor(BGCOLOR);
241 dc.fg = getcolor(FGCOLOR);
242 dc.border = getcolor(BORDERCOLOR);
246 sw = DisplayWidth(dpy, screen);
247 sh = DisplayHeight(dpy, screen);
248 mw = (sw * MASTERW) / 100;
252 dc.h = bh = dc.font.height + 4;
253 wa.override_redirect = 1;
254 wa.background_pixmap = ParentRelative;
255 wa.event_mask = ButtonPressMask | ExposureMask;
256 barwin = XCreateWindow(dpy, root, bx, by, bw, bh, 0, DefaultDepth(dpy, screen),
257 CopyFromParent, DefaultVisual(dpy, screen),
258 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
259 XDefineCursor(dpy, barwin, cursor[CurNormal]);
260 XMapRaised(dpy, barwin);
262 dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
263 dc.gc = XCreateGC(dpy, root, 0, 0);
265 strcpy(stext, "dwm-"VERSION);
268 issel = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask);
272 /* main event loop, also reads status text from stdin */
278 FD_SET(STDIN_FILENO, &rd);
280 i = select(xfd + 1, &rd, NULL, NULL, NULL);
281 if(i == -1 && errno == EINTR)
284 eprint("select failed\n");
286 if(readin && FD_ISSET(STDIN_FILENO, &rd)) {
287 readin = NULL != fgets(stext, sizeof(stext), stdin);
289 stext[strlen(stext) - 1] = 0;
291 strcpy(stext, "broken pipe");
294 if(FD_ISSET(xfd, &rd))