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;
30 Cursor cursor[CurLast];
37 static int (*xerrorxlib)(Display *, XErrorEvent *);
38 static Bool otherwm, readin;
45 resize(sel, True, TopLeft);
49 XFreeFontSet(dpy, dc.font.set);
51 XFreeFont(dpy, dc.font.xfont);
52 XUngrabKey(dpy, AnyKey, AnyModifier, root);
53 XFreePixmap(dpy, dc.drawable);
55 XDestroyWindow(dpy, barwin);
56 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
69 if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
70 for(i = 0; i < num; i++) {
71 if(!XGetWindowAttributes(dpy, wins[i], &wa))
73 if(wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
75 if(wa.map_state == IsViewable)
89 XModifierKeymap *modmap;
90 XSetWindowAttributes wa;
93 wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
94 wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
95 netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
96 netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
97 XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
98 PropModeReplace, (unsigned char *) netatom, NetLast);
101 cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
102 cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
103 cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
105 modmap = XGetModifierMapping(dpy);
106 for (i = 0; i < 8; i++) {
107 for (j = 0; j < modmap->max_keypermod; j++) {
108 if(modmap->modifiermap[i * modmap->max_keypermod + j] == XKeysymToKeycode(dpy, XK_Num_Lock))
109 numlockmask = (1 << i);
114 wa.event_mask = SubstructureRedirectMask | SubstructureNotifyMask | EnterWindowMask | LeaveWindowMask;
115 wa.cursor = cursor[CurNormal];
116 XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
121 for(ntags = 0; tags[ntags]; ntags++);
122 seltag = emallocz(sizeof(Bool) * ntags);
126 dc.norm[ColBG] = getcolor(NORMBGCOLOR);
127 dc.norm[ColFG] = getcolor(NORMFGCOLOR);
128 dc.sel[ColBG] = getcolor(SELBGCOLOR);
129 dc.sel[ColFG] = getcolor(SELFGCOLOR);
130 dc.status[ColBG] = getcolor(STATUSBGCOLOR);
131 dc.status[ColFG] = getcolor(STATUSFGCOLOR);
134 bmw = textw(FLOATSYMBOL) > textw(TILESYMBOL) ? textw(FLOATSYMBOL) : textw(TILESYMBOL);
136 sw = DisplayWidth(dpy, screen);
137 sh = DisplayHeight(dpy, screen);
138 mw = (sw * MASTERW) / 100;
142 dc.h = bh = dc.font.height + 2;
143 wa.override_redirect = 1;
144 wa.background_pixmap = ParentRelative;
145 wa.event_mask = ButtonPressMask | ExposureMask;
146 barwin = XCreateWindow(dpy, root, bx, by, bw, bh, 0, DefaultDepth(dpy, screen),
147 CopyFromParent, DefaultVisual(dpy, screen),
148 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
149 XDefineCursor(dpy, barwin, cursor[CurNormal]);
150 XMapRaised(dpy, barwin);
152 dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
153 dc.gc = XCreateGC(dpy, root, 0, 0);
154 XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
156 issel = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask);
157 strcpy(stext, "dwm-"VERSION);
161 * Startup Error handler to check if another window manager
162 * is already running.
165 xerrorstart(Display *dsply, XErrorEvent *ee)
176 int i, format, protos, status;
177 unsigned long extra, res;
178 Atom *protocols, real;
181 status = XGetWindowProperty(dpy, w, wmatom[WMProtocols], 0L, 20L, False,
182 XA_ATOM, &real, &format, &res, &extra, (unsigned char **)&protocols);
183 if(status != Success || protocols == 0)
185 for(i = 0; i < res; i++)
186 if(protocols[i] == wmatom[WMDelete])
187 protos |= PROTODELWIN;
193 sendevent(Window w, Atom a, long value)
197 e.type = ClientMessage;
198 e.xclient.window = w;
199 e.xclient.message_type = a;
200 e.xclient.format = 32;
201 e.xclient.data.l[0] = value;
202 e.xclient.data.l[1] = CurrentTime;
203 XSendEvent(dpy, w, False, NoEventMask, &e);
210 readin = running = False;
214 * There's no way to check accesses to destroyed windows, thus those cases are
215 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
216 * default error handler, which calls exit().
219 xerror(Display *dpy, XErrorEvent *ee)
221 if(ee->error_code == BadWindow
222 || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
223 || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
224 || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
225 || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
226 || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
227 || (ee->request_code == X_GrabKey && ee->error_code == BadAccess))
229 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
230 ee->request_code, ee->error_code);
231 return xerrorxlib(dpy, ee); /* may call exit() */
235 main(int argc, char *argv[])
240 if(argc == 2 && !strncmp("-v", argv[1], 3)) {
241 fputs("dwm-"VERSION", (C)opyright MMVI Anselm R. Garbe\n", stdout);
245 eprint("usage: dwm [-v]\n");
247 dpy = XOpenDisplay(0);
249 eprint("dwm: cannot open display\n");
251 xfd = ConnectionNumber(dpy);
252 screen = DefaultScreen(dpy);
253 root = RootWindow(dpy, screen);
256 XSetErrorHandler(xerrorstart);
257 /* this causes an error if some other window manager is running */
258 XSelectInput(dpy, root, SubstructureRedirectMask);
262 eprint("dwm: another window manager is already running\n");
265 XSetErrorHandler(NULL);
266 xerrorxlib = XSetErrorHandler(xerror);
273 /* main event loop, also reads status text from stdin */
280 FD_SET(STDIN_FILENO, &rd);
282 r = select(xfd + 1, &rd, NULL, NULL, NULL);
283 if((r == -1) && (errno == EINTR))
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");
296 eprint("select failed\n");