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>
22 int bx, by, bw, bh, bmw, mw, screen, sx, sy, sw, sh;
23 unsigned int ntags, numlockmask;
24 Atom wmatom[WMLast], netatom[NetLast];
27 Bool maximized = False;
28 Client *clients = NULL;
31 Cursor cursor[CurLast];
38 static int (*xerrorxlib)(Display *, XErrorEvent *);
39 static Bool otherwm, readin;
46 resize(sel, True, TopLeft);
50 XFreeFontSet(dpy, dc.font.set);
52 XFreeFont(dpy, dc.font.xfont);
53 XUngrabKey(dpy, AnyKey, AnyModifier, root);
54 XFreePixmap(dpy, dc.drawable);
56 XDestroyWindow(dpy, barwin);
57 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
70 if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
71 for(i = 0; i < num; i++) {
72 if(!XGetWindowAttributes(dpy, wins[i], &wa))
74 if(wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
76 if(wa.map_state == IsViewable)
90 XModifierKeymap *modmap;
91 XSetWindowAttributes wa;
94 wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
95 wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
96 netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
97 netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
98 XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
99 PropModeReplace, (unsigned char *) netatom, NetLast);
102 cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
103 cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
104 cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
106 modmap = XGetModifierMapping(dpy);
107 for (i = 0; i < 8; i++) {
108 for (j = 0; j < modmap->max_keypermod; j++) {
109 if(modmap->modifiermap[i * modmap->max_keypermod + j] == XKeysymToKeycode(dpy, XK_Num_Lock))
110 numlockmask = (1 << i);
115 wa.event_mask = SubstructureRedirectMask | SubstructureNotifyMask | EnterWindowMask | LeaveWindowMask;
116 wa.cursor = cursor[CurNormal];
117 XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
122 for(ntags = 0; tags[ntags]; ntags++);
123 seltag = emallocz(sizeof(Bool) * ntags);
127 dc.norm[ColBG] = getcolor(NORMBGCOLOR);
128 dc.norm[ColFG] = getcolor(NORMFGCOLOR);
129 dc.sel[ColBG] = getcolor(SELBGCOLOR);
130 dc.sel[ColFG] = getcolor(SELFGCOLOR);
131 dc.status[ColBG] = getcolor(STATUSBGCOLOR);
132 dc.status[ColFG] = getcolor(STATUSFGCOLOR);
135 bmw = textw(FLOATSYMBOL) > textw(TILESYMBOL) ? textw(FLOATSYMBOL) : textw(TILESYMBOL);
137 sw = DisplayWidth(dpy, screen);
138 sh = DisplayHeight(dpy, screen);
139 mw = (sw * MASTERW) / 100;
143 dc.h = bh = dc.font.height + 2;
144 wa.override_redirect = 1;
145 wa.background_pixmap = ParentRelative;
146 wa.event_mask = ButtonPressMask | ExposureMask;
147 barwin = XCreateWindow(dpy, root, bx, by, bw, bh, 0, DefaultDepth(dpy, screen),
148 CopyFromParent, DefaultVisual(dpy, screen),
149 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
150 XDefineCursor(dpy, barwin, cursor[CurNormal]);
151 XMapRaised(dpy, barwin);
153 dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
154 dc.gc = XCreateGC(dpy, root, 0, 0);
155 XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
157 issel = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask);
158 strcpy(stext, "dwm-"VERSION);
162 * Startup Error handler to check if another window manager
163 * is already running.
166 xerrorstart(Display *dsply, XErrorEvent *ee)
177 int i, format, protos, status;
178 unsigned long extra, res;
179 Atom *protocols, real;
182 status = XGetWindowProperty(dpy, w, wmatom[WMProtocols], 0L, 20L, False,
183 XA_ATOM, &real, &format, &res, &extra, (unsigned char **)&protocols);
184 if(status != Success || protocols == 0)
186 for(i = 0; i < res; i++)
187 if(protocols[i] == wmatom[WMDelete])
188 protos |= PROTODELWIN;
194 sendevent(Window w, Atom a, long value)
198 e.type = ClientMessage;
199 e.xclient.window = w;
200 e.xclient.message_type = a;
201 e.xclient.format = 32;
202 e.xclient.data.l[0] = value;
203 e.xclient.data.l[1] = CurrentTime;
204 XSendEvent(dpy, w, False, NoEventMask, &e);
211 readin = running = False;
215 * There's no way to check accesses to destroyed windows, thus those cases are
216 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
217 * default error handler, which calls exit().
220 xerror(Display *dpy, XErrorEvent *ee)
222 if(ee->error_code == BadWindow
223 || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
224 || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
225 || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
226 || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
227 || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
228 || (ee->request_code == X_GrabKey && ee->error_code == BadAccess))
230 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
231 ee->request_code, ee->error_code);
232 return xerrorxlib(dpy, ee); /* may call exit() */
236 main(int argc, char *argv[])
241 if(argc == 2 && !strncmp("-v", argv[1], 3)) {
242 fputs("dwm-"VERSION", (C)opyright MMVI Anselm R. Garbe\n", stdout);
246 eprint("usage: dwm [-v]\n");
248 dpy = XOpenDisplay(0);
250 eprint("dwm: cannot open display\n");
252 xfd = ConnectionNumber(dpy);
253 screen = DefaultScreen(dpy);
254 root = RootWindow(dpy, screen);
257 XSetErrorHandler(xerrorstart);
258 /* this causes an error if some other window manager is running */
259 XSelectInput(dpy, root, SubstructureRedirectMask);
263 eprint("dwm: another window manager is already running\n");
266 XSetErrorHandler(NULL);
267 xerrorxlib = XSetErrorHandler(xerror);
274 /* main event loop, also reads status text from stdin */
281 FD_SET(STDIN_FILENO, &rd);
283 r = select(xfd + 1, &rd, NULL, NULL, NULL);
284 if((r == -1) && (errno == EINTR))
287 if(readin && FD_ISSET(STDIN_FILENO, &rd)) {
288 readin = NULL != fgets(stext, sizeof(stext), stdin);
290 stext[strlen(stext) - 1] = 0;
292 strcpy(stext, "broken pipe");
297 eprint("select failed\n");