1 /* © 2006-2007 Anselm R. Garbe <garbeam at gmail dot com>
2 * © 2006-2007 Sander van Dijk <a dot h dot vandijk at gmail dot com>
3 * © 2006-2007 Jukka Salmi <jukka at salmi dot ch>
4 * © 2007 Premysl Hruby <dfenze at gmail dot com>
5 * © 2007 Szabolcs Nagy <nszabolcs at gmail dot com>
6 * See LICENSE file for license details. */
14 #include <sys/select.h>
15 #include <X11/cursorfont.h>
16 #include <X11/keysym.h>
17 #include <X11/Xatom.h>
18 #include <X11/Xproto.h>
23 int screen, sx, sy, sw, sh, wax, way, waw, wah;
24 unsigned int bh, bpos, ntags, numlockmask;
25 Atom wmatom[WMLast], netatom[NetLast];
27 Bool selscreen = True;
28 Client *clients = NULL;
31 Cursor cursor[CurLast];
38 static int (*xerrorxlib)(Display *, XErrorEvent *);
39 static Bool otherwm, readin;
40 static Bool running = True;
47 XMoveWindow(dpy, stack->win, stack->x, stack->y);
51 XFreeFontSet(dpy, dc.font.set);
53 XFreeFont(dpy, dc.font.xfont);
54 XUngrabKey(dpy, AnyKey, AnyModifier, root);
55 XFreePixmap(dpy, dc.drawable);
57 XDestroyWindow(dpy, barwin);
58 XFreeCursor(dpy, cursor[CurNormal]);
59 XFreeCursor(dpy, cursor[CurResize]);
60 XFreeCursor(dpy, cursor[CurMove]);
61 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
67 initcolor(const char *colstr) {
68 Colormap cmap = DefaultColormap(dpy, screen);
71 if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
72 eprint("error, cannot allocate color '%s'\n", colstr);
77 initfont(const char *fontstr) {
83 XFreeFontSet(dpy, dc.font.set);
84 dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
87 fprintf(stderr, "dwm: missing fontset: %s\n", missing[n]);
88 XFreeStringList(missing);
91 XFontSetExtents *font_extents;
94 dc.font.ascent = dc.font.descent = 0;
95 font_extents = XExtentsOfFontSet(dc.font.set);
96 n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
97 for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
98 if(dc.font.ascent < (*xfonts)->ascent)
99 dc.font.ascent = (*xfonts)->ascent;
100 if(dc.font.descent < (*xfonts)->descent)
101 dc.font.descent = (*xfonts)->descent;
107 XFreeFont(dpy, dc.font.xfont);
108 dc.font.xfont = NULL;
109 if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr)))
110 eprint("error, cannot load font: '%s'\n", fontstr);
111 dc.font.ascent = dc.font.xfont->ascent;
112 dc.font.descent = dc.font.xfont->descent;
114 dc.font.height = dc.font.ascent + dc.font.descent;
120 Window *wins, d1, d2;
121 XWindowAttributes wa;
124 if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
125 for(i = 0; i < num; i++) {
126 if(!XGetWindowAttributes(dpy, wins[i], &wa)
127 || wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
129 if(wa.map_state == IsViewable)
130 manage(wins[i], &wa);
142 XModifierKeymap *modmap;
143 XSetWindowAttributes wa;
146 wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
147 wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
148 wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);
149 netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
150 netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
151 XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
152 PropModeReplace, (unsigned char *) netatom, NetLast);
154 cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
155 cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
156 cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
157 /* init modifier map */
159 modmap = XGetModifierMapping(dpy);
160 for (i = 0; i < 8; i++)
161 for (j = 0; j < modmap->max_keypermod; j++) {
162 if(modmap->modifiermap[i * modmap->max_keypermod + j]
163 == XKeysymToKeycode(dpy, XK_Num_Lock))
164 numlockmask = (1 << i);
166 XFreeModifiermap(modmap);
167 /* select for events */
168 wa.event_mask = SubstructureRedirectMask | SubstructureNotifyMask
169 | EnterWindowMask | LeaveWindowMask | StructureNotifyMask;
170 wa.cursor = cursor[CurNormal];
171 XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
172 XSelectInput(dpy, root, wa.event_mask);
175 for(ntags = 0; tags[ntags]; ntags++);
176 seltag = emallocz(sizeof(Bool) * ntags);
179 dc.norm[ColBorder] = initcolor(NORMBORDERCOLOR);
180 dc.norm[ColBG] = initcolor(NORMBGCOLOR);
181 dc.norm[ColFG] = initcolor(NORMFGCOLOR);
182 dc.sel[ColBorder] = initcolor(SELBORDERCOLOR);
183 dc.sel[ColBG] = initcolor(SELBGCOLOR);
184 dc.sel[ColFG] = initcolor(SELFGCOLOR);
188 sw = DisplayWidth(dpy, screen);
189 sh = DisplayHeight(dpy, screen);
192 dc.h = bh = dc.font.height + 2;
193 wa.override_redirect = 1;
194 wa.background_pixmap = ParentRelative;
195 wa.event_mask = ButtonPressMask | ExposureMask;
196 barwin = XCreateWindow(dpy, root, sx, sy, sw, bh, 0,
197 DefaultDepth(dpy, screen), CopyFromParent, DefaultVisual(dpy, screen),
198 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
199 XDefineCursor(dpy, barwin, cursor[CurNormal]);
202 XMapRaised(dpy, barwin);
203 strcpy(stext, "dwm-"VERSION);
204 /* pixmap for everything */
205 dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
206 dc.gc = XCreateGC(dpy, root, 0, 0);
207 XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
209 XSetFont(dpy, dc.gc, dc.font.xfont->fid);
210 /* multihead support */
211 selscreen = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask);
215 * Startup Error handler to check if another window manager
216 * is already running.
219 xerrorstart(Display *dsply, XErrorEvent *ee) {
227 quit(const char *arg) {
228 readin = running = False;
243 XMoveWindow(dpy, barwin, sx, sy);
247 XMoveWindow(dpy, barwin, sx, sy + wah);
250 XMoveWindow(dpy, barwin, sx, sy - bh);
254 while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
257 /* There's no way to check accesses to destroyed windows, thus those cases are
258 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
259 * default error handler, which may call exit.
262 xerror(Display *dpy, XErrorEvent *ee) {
263 if(ee->error_code == BadWindow
264 || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
265 || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
266 || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
267 || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
268 || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
269 || (ee->request_code == X_GrabKey && ee->error_code == BadAccess)
270 || (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
272 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
273 ee->request_code, ee->error_code);
274 return xerrorxlib(dpy, ee); /* may call exit */
278 main(int argc, char *argv[]) {
284 if(argc == 2 && !strcmp("-v", argv[1]))
285 eprint("dwm-"VERSION", © 2006-2007 A. R. Garbe, S. van Dijk, J. Salmi, P. Hruby, S. Nagy\n");
287 eprint("usage: dwm [-v]\n");
288 setlocale(LC_CTYPE, "");
289 if(!(dpy = XOpenDisplay(0)))
290 eprint("dwm: cannot open display\n");
291 xfd = ConnectionNumber(dpy);
292 screen = DefaultScreen(dpy);
293 root = RootWindow(dpy, screen);
295 XSetErrorHandler(xerrorstart);
296 /* this causes an error if some other window manager is running */
297 XSelectInput(dpy, root, SubstructureRedirectMask);
300 eprint("dwm: another window manager is already running\n");
303 XSetErrorHandler(NULL);
304 xerrorxlib = XSetErrorHandler(xerror);
310 /* main event loop, also reads status text from stdin */
316 FD_SET(STDIN_FILENO, &rd);
318 if(select(xfd + 1, &rd, NULL, NULL, NULL) == -1) {
321 eprint("select failed\n");
323 if(FD_ISSET(STDIN_FILENO, &rd)) {
324 switch(r = read(STDIN_FILENO, stext, sizeof stext - 1)) {
326 strncpy(stext, strerror(errno), sizeof stext - 1);
327 stext[sizeof stext - 1] = '\0';
331 strncpy(stext, "EOF", 4);
335 for(stext[r] = '\0', p = stext + strlen(stext) - 1; p >= stext && *p == '\n'; *p-- = '\0');
336 for(; p >= stext && *p != '\n'; --p);
338 strncpy(stext, p + 1, sizeof stext);
342 while(XPending(dpy)) {
343 XNextEvent(dpy, &ev);
345 (handler[ev.type])(&ev); /* call handler */