2 * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
3 * See LICENSE file for license details.
13 #include <sys/select.h>
14 #include <X11/cursorfont.h>
15 #include <X11/Xatom.h>
16 #include <X11/Xproto.h>
21 static int (*xerrorxlib)(Display *, XErrorEvent *);
28 resize(sel, True, TopLeft);
31 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)
59 unsigned long res, extra;
62 status = XGetWindowProperty(dpy, w, a, 0L, l, False, t, &real, &format,
65 if(status != Success || *prop == 0) {
75 * Startup Error handler to check if another window manager
79 xerrorstart(Display *dsply, XErrorEvent *ee)
89 int screen, sx, sy, sw, sh, bx, by, bw, bh, mw;
90 Atom wmatom[WMLast], netatom[NetLast];
93 Client *clients = NULL;
95 Cursor cursor[CurLast];
106 unsigned char *protocols;
108 res = win_property(w, wmatom[WMProtocols], XA_ATOM, 20L, &protocols);
112 for(i = 0; i < res; i++) {
113 if(protocols[i] == wmatom[WMDelete])
114 protos |= PROTODELWIN;
116 free((char *) protocols);
121 sendevent(Window w, Atom a, long value)
125 e.type = ClientMessage;
126 e.xclient.window = w;
127 e.xclient.message_type = a;
128 e.xclient.format = 32;
129 e.xclient.data.l[0] = value;
130 e.xclient.data.l[1] = CurrentTime;
131 XSendEvent(dpy, w, False, NoEventMask, &e);
142 * There's no way to check accesses to destroyed windows, thus those cases are
143 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
144 * default error handler, which calls exit().
147 xerror(Display *dpy, XErrorEvent *ee)
149 if(ee->error_code == BadWindow
150 || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
151 || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
152 || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
153 || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
154 || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
155 || (ee->request_code == X_GrabKey && ee->error_code == BadAccess))
157 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
158 ee->request_code, ee->error_code);
159 return xerrorxlib(dpy, ee); /* may call exit() */
163 main(int argc, char *argv[])
170 XSetWindowAttributes wa;
172 if(argc == 2 && !strncmp("-v", argv[1], 3)) {
173 fputs("dwm-"VERSION", (C)opyright MMVI Anselm R. Garbe\n", stdout);
177 eprint("usage: dwm [-v]\n");
179 dpy = XOpenDisplay(0);
181 eprint("dwm: cannot connect X server\n");
183 screen = DefaultScreen(dpy);
184 root = RootWindow(dpy, screen);
186 /* check if another WM is already running */
188 XSetErrorHandler(xerrorstart);
189 /* this causes an error if some other WM is running */
190 XSelectInput(dpy, root, SubstructureRedirectMask);
194 eprint("dwm: another window manager is already running\n");
196 XSetErrorHandler(NULL);
197 xerrorxlib = XSetErrorHandler(xerror);
200 wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
201 wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
202 netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
203 netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
204 XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
205 PropModeReplace, (unsigned char *) netatom, NetLast);
208 cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
209 cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
210 cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
215 dc.bg = getcolor(BGCOLOR);
216 dc.fg = getcolor(FGCOLOR);
217 dc.border = getcolor(BORDERCOLOR);
221 sw = DisplayWidth(dpy, screen);
222 sh = DisplayHeight(dpy, screen);
223 mw = (sw * MASTERW) / 100;
225 wa.override_redirect = 1;
226 wa.background_pixmap = ParentRelative;
227 wa.event_mask = ButtonPressMask | ExposureMask;
231 dc.h = bh = dc.font.height + 4;
232 barwin = XCreateWindow(dpy, root, bx, by, bw, bh, 0, DefaultDepth(dpy, screen),
233 CopyFromParent, DefaultVisual(dpy, screen),
234 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
235 XDefineCursor(dpy, barwin, cursor[CurNormal]);
236 XMapRaised(dpy, barwin);
238 dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
239 dc.gc = XCreateGC(dpy, root, 0, 0);
242 issel = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask);
244 wa.event_mask = SubstructureRedirectMask | EnterWindowMask | LeaveWindowMask;
245 wa.cursor = cursor[CurNormal];
246 XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
248 strcpy(stext, "dwm-"VERSION);
251 /* main event loop, reads status text from stdin as well */
254 FD_SET(STDIN_FILENO, &rd);
255 FD_SET(ConnectionNumber(dpy), &rd);
257 i = select(ConnectionNumber(dpy) + 1, &rd, 0, 0, 0);
258 if(i == -1 && errno == EINTR)
261 eprint("select failed\n");
263 if(FD_ISSET(ConnectionNumber(dpy), &rd)) {
264 while(XPending(dpy)) {
265 XNextEvent(dpy, &ev);
267 (handler[ev.type])(&ev); /* call handler */
270 if(FD_ISSET(STDIN_FILENO, &rd)) {
271 if(!fgets(stext, sizeof(stext), stdin))
274 stext[strlen(stext) - 1] = 0;