1 /* See LICENSE file for copyright and license details.
3 * dynamic window manager is designed like any other X client as well. It is
4 * driven through handling X events. In contrast to other X clients, a window
5 * manager selects for SubstructureRedirectMask on the root window, to receive
6 * events about window (dis-)appearance. Only one X connection at a time is
7 * allowed to select for this event mask.
9 * The event handlers of dwm are organized in an array which is accessed
10 * whenever a new event has been fetched. This allows event dispatching
13 * Each child of the root window is called a client, except windows which have
14 * set the override_redirect flag. Clients are organized in a linked client
15 * list on each monitor, the focus history is remembered through a stack list
16 * on each monitor. Each client contains a bit array to indicate the tags of a
19 * Keys and tagging rules are organized as arrays and defined in config.h.
21 * To understand everything else, start reading main().
31 #include <sys/types.h>
33 #include <X11/cursorfont.h>
34 #include <X11/keysym.h>
35 #include <X11/Xatom.h>
37 #include <X11/Xproto.h>
38 #include <X11/Xutil.h>
40 #include <X11/extensions/Xinerama.h>
44 #define BUTTONMASK (ButtonPressMask|ButtonReleaseMask)
45 #define CLEANMASK(mask) (mask & ~(numlockmask|LockMask))
46 #define INRECT(X,Y,RX,RY,RW,RH) ((X) >= (RX) && (X) < (RX) + (RW) && (Y) >= (RY) && (Y) < (RY) + (RH))
47 #define ISVISIBLE(C) ((C->tags & C->mon->tagset[C->mon->seltags]))
48 #define LENGTH(X) (sizeof X / sizeof X[0])
49 #define MAX(A, B) ((A) > (B) ? (A) : (B))
50 #define MIN(A, B) ((A) < (B) ? (A) : (B))
51 #define MOUSEMASK (BUTTONMASK|PointerMotionMask)
52 #define WIDTH(X) ((X)->w + 2 * (X)->bw)
53 #define HEIGHT(X) ((X)->h + 2 * (X)->bw)
54 #define TAGMASK ((1 << LENGTH(tags)) - 1)
55 #define TEXTW(X) (textnw(X, strlen(X)) + dc.font.height)
58 enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
59 enum { ColBorder, ColFG, ColBG, ColLast }; /* color */
60 enum { NetSupported, NetWMName, NetLast }; /* EWMH atoms */
61 enum { WMProtocols, WMDelete, WMState, WMLast }; /* default atoms */
62 enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle,
63 ClkClientWin, ClkRootWin, ClkLast }; /* clicks */
76 void (*func)(const Arg *arg);
80 typedef struct Monitor Monitor;
81 typedef struct Client Client;
86 int basew, baseh, incw, inch, maxw, maxh, minw, minh;
89 Bool isfixed, isfloating, isurgent;
98 unsigned long norm[ColLast];
99 unsigned long sel[ColLast];
109 } DC; /* draw context */
114 void (*func)(const Arg *);
120 void (*arrange)(Monitor *);
126 int by; /* bar geometry */
127 int mx, my, mw, mh; /* screen size */
128 int wx, wy, ww, wh; /* window area */
129 unsigned int seltags;
131 unsigned int tagset[2];
144 const char *instance;
151 /* function declarations */
152 static void applyrules(Client *c);
153 static Bool applysizehints(Client *c, int *x, int *y, int *w, int *h, Bool interact);
154 static void arrange(void);
155 static void attach(Client *c);
156 static void attachstack(Client *c);
157 static void buttonpress(XEvent *e);
158 static void checkotherwm(void);
159 static void cleanup(void);
160 static void cleanupmons(void);
161 static void clearurgent(Client *c);
162 static void configure(Client *c);
163 static void configurenotify(XEvent *e);
164 static void configurerequest(XEvent *e);
165 static void destroynotify(XEvent *e);
166 static void detach(Client *c);
167 static void detachstack(Client *c);
168 static void die(const char *errstr, ...);
169 static Monitor *dirtomon(int dir);
170 static void drawbar(Monitor *m);
171 static void drawbars(void);
172 static void drawsquare(Bool filled, Bool empty, Bool invert, unsigned long col[ColLast]);
173 static void drawtext(const char *text, unsigned long col[ColLast], Bool invert);
174 static void enternotify(XEvent *e);
175 static void expose(XEvent *e);
176 static void focus(Client *c);
177 static void focusin(XEvent *e);
178 static void focusmon(const Arg *arg);
179 static void focusstack(const Arg *arg);
180 static unsigned long getcolor(const char *colstr);
181 static Bool getrootptr(int *x, int *y);
182 static long getstate(Window w);
183 static Bool gettextprop(Window w, Atom atom, char *text, unsigned int size);
184 static void grabbuttons(Client *c, Bool focused);
185 static void grabkeys(void);
186 static void initfont(const char *fontstr);
187 static Bool isprotodel(Client *c);
188 static void keypress(XEvent *e);
189 static void killclient(const Arg *arg);
190 static void manage(Window w, XWindowAttributes *wa);
191 static void mappingnotify(XEvent *e);
192 static void maprequest(XEvent *e);
193 static void monocle(Monitor *m);
194 static void movemouse(const Arg *arg);
195 static Client *nexttiled(Client *c);
196 static Monitor *ptrtomon(int x, int y);
197 static void propertynotify(XEvent *e);
198 static void quit(const Arg *arg);
199 static void resize(Client *c, int x, int y, int w, int h, Bool interact);
200 static void resizemouse(const Arg *arg);
201 static void restack(Monitor *m);
202 static void run(void);
203 static void scan(void);
204 static void sendmon(Client *c, Monitor *m);
205 static void setclientstate(Client *c, long state);
206 static void setlayout(const Arg *arg);
207 static void setmfact(const Arg *arg);
208 static void setup(void);
209 static void showhide(Client *c);
210 static void sigchld(int signal);
211 static void spawn(const Arg *arg);
212 static void tag(const Arg *arg);
213 static void tagmon(const Arg *arg);
214 static int textnw(const char *text, unsigned int len);
215 static void tile(Monitor *);
216 static void togglebar(const Arg *arg);
217 static void togglefloating(const Arg *arg);
218 static void toggletag(const Arg *arg);
219 static void toggleview(const Arg *arg);
220 static void unfocus(Client *c);
221 static void unmanage(Client *c);
222 static void unmapnotify(XEvent *e);
223 static void updategeom(void);
224 static void updatebarpos(Monitor *m);
225 static void updatebars(void);
226 static void updatenumlockmask(void);
227 static void updatesizehints(Client *c);
228 static void updatestatus(void);
229 static void updatetitle(Client *c);
230 static void updatewmhints(Client *c);
231 static void view(const Arg *arg);
232 static Client *wintoclient(Window w);
233 static Monitor *wintomon(Window w);
234 static int xerror(Display *dpy, XErrorEvent *ee);
235 static int xerrordummy(Display *dpy, XErrorEvent *ee);
236 static int xerrorstart(Display *dpy, XErrorEvent *ee);
237 static void zoom(const Arg *arg);
240 static const char broken[] = "broken";
241 static char stext[256], ntext[8];
243 static int sw, sh; /* X display screen geometry width, height */
244 static int bh, blw = 0; /* bar geometry */
245 static int (*xerrorxlib)(Display *, XErrorEvent *);
246 static unsigned int numlockmask = 0;
247 static void (*handler[LASTEvent]) (XEvent *) = {
248 [ButtonPress] = buttonpress,
249 [ConfigureRequest] = configurerequest,
250 [ConfigureNotify] = configurenotify,
251 [DestroyNotify] = destroynotify,
252 [EnterNotify] = enternotify,
255 [KeyPress] = keypress,
256 [MappingNotify] = mappingnotify,
257 [MapRequest] = maprequest,
258 [PropertyNotify] = propertynotify,
259 [UnmapNotify] = unmapnotify
261 static Atom wmatom[WMLast], netatom[NetLast];
263 static Bool running = True;
264 static Cursor cursor[CurLast];
267 static Monitor *mons = NULL, *selmon = NULL;
270 /* configuration, allows nested code to access above variables */
273 /* compile-time check if all tags fit into an unsigned int bit array. */
274 struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; };
276 /* function implementations */
278 applyrules(Client *c) {
279 const char *class, *instance;
283 XClassHint ch = { 0 };
286 c->isfloating = c->tags = 0;
287 if(XGetClassHint(dpy, c->win, &ch)) {
288 class = ch.res_class ? ch.res_class : broken;
289 instance = ch.res_name ? ch.res_name : broken;
290 for(i = 0; i < LENGTH(rules); i++) {
292 if((!r->title || strstr(c->name, r->title))
293 && (!r->class || strstr(class, r->class))
294 && (!r->instance || strstr(instance, r->instance)))
296 c->isfloating = r->isfloating;
298 for(m = mons; m && m->num != r->monitor; m = m->next);
308 c->tags = c->tags & TAGMASK ? c->tags & TAGMASK : c->mon->tagset[c->mon->seltags];
312 applysizehints(Client *c, int *x, int *y, int *w, int *h, Bool interact) {
316 /* set minimum possible */
324 if(*x + *w + 2 * c->bw < 0)
326 if(*y + *h + 2 * c->bw < 0)
330 if(*x > m->mx + m->mw)
331 *x = m->mx + m->mw - WIDTH(c);
332 if(*y > m->my + m->mh)
333 *y = m->my + m->mh - HEIGHT(c);
334 if(*x + *w + 2 * c->bw < m->mx)
336 if(*y + *h + 2 * c->bw < m->my)
343 if(resizehints || c->isfloating) {
344 /* see last two sentences in ICCCM 4.1.2.3 */
345 baseismin = c->basew == c->minw && c->baseh == c->minh;
346 if(!baseismin) { /* temporarily remove base dimensions */
350 /* adjust for aspect limits */
351 if(c->mina > 0 && c->maxa > 0) {
352 if(c->maxa < (float)*w / *h)
353 *w = *h * c->maxa + 0.5;
354 else if(c->mina < (float)*h / *w)
355 *h = *w * c->mina + 0.5;
357 if(baseismin) { /* increment calculation requires this */
361 /* adjust for increment value */
366 /* restore base dimensions */
369 *w = MAX(*w, c->minw);
370 *h = MAX(*h, c->minh);
372 *w = MIN(*w, c->maxw);
374 *h = MIN(*h, c->maxh);
376 return *x != c->x || *y != c->y || *w != c->w || *h != c->h;
383 for(m = mons; m; m = m->next)
386 for(m = mons; m; m = m->next) {
387 if(m->lt[m->sellt]->arrange)
388 m->lt[m->sellt]->arrange(m);
395 c->next = c->mon->clients;
400 attachstack(Client *c) {
401 c->snext = c->mon->stack;
406 buttonpress(XEvent *e) {
407 unsigned int i, x, click;
411 XButtonPressedEvent *ev = &e->xbutton;
414 /* focus monitor if necessary */
415 if((m = wintomon(ev->window)) && m != selmon) {
416 unfocus(selmon->sel);
420 if(ev->window == selmon->barwin) {
424 } while(ev->x >= x && ++i < LENGTH(tags));
425 if(i < LENGTH(tags)) {
429 else if(ev->x < x + blw)
431 else if(ev->x > selmon->wx + selmon->ww - TEXTW(stext))
432 click = ClkStatusText;
436 else if((c = wintoclient(ev->window))) {
438 click = ClkClientWin;
440 for(i = 0; i < LENGTH(buttons); i++)
441 if(click == buttons[i].click && buttons[i].func && buttons[i].button == ev->button
442 && CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
443 buttons[i].func(click == ClkTagBar && buttons[i].arg.i == 0 ? &arg : &buttons[i].arg);
449 xerrorxlib = XSetErrorHandler(xerrorstart);
450 /* this causes an error if some other window manager is running */
451 XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask);
454 die("dwm: another window manager is already running\n");
455 XSetErrorHandler(xerror);
462 Layout foo = { "", NULL };
466 selmon->lt[selmon->sellt] = &foo;
467 for(m = mons; m; m = m->next)
471 XFreeFontSet(dpy, dc.font.set);
473 XFreeFont(dpy, dc.font.xfont);
474 XUngrabKey(dpy, AnyKey, AnyModifier, root);
475 XFreePixmap(dpy, dc.drawable);
477 XFreeCursor(dpy, cursor[CurNormal]);
478 XFreeCursor(dpy, cursor[CurResize]);
479 XFreeCursor(dpy, cursor[CurMove]);
482 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
491 XUnmapWindow(dpy, mons->barwin);
492 XDestroyWindow(dpy, mons->barwin);
499 clearurgent(Client *c) {
503 if(!(wmh = XGetWMHints(dpy, c->win)))
505 wmh->flags &= ~XUrgencyHint;
506 XSetWMHints(dpy, c->win, wmh);
511 configure(Client *c) {
514 ce.type = ConfigureNotify;
522 ce.border_width = c->bw;
524 ce.override_redirect = False;
525 XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce);
529 configurenotify(XEvent *e) {
531 XConfigureEvent *ev = &e->xconfigure;
533 if(ev->window == root && (ev->width != sw || ev->height != sh)) {
538 XFreePixmap(dpy, dc.drawable);
539 dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
541 for(m = mons; m; m = m->next)
542 XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, m->ww, bh);
548 configurerequest(XEvent *e) {
551 XConfigureRequestEvent *ev = &e->xconfigurerequest;
554 if((c = wintoclient(ev->window))) {
555 if(ev->value_mask & CWBorderWidth)
556 c->bw = ev->border_width;
557 else if(c->isfloating || !selmon->lt[selmon->sellt]->arrange) {
559 if(ev->value_mask & CWX)
560 c->x = m->mx + ev->x;
561 if(ev->value_mask & CWY)
562 c->y = m->my + ev->y;
563 if(ev->value_mask & CWWidth)
565 if(ev->value_mask & CWHeight)
567 if((c->x - m->mx + c->w) > m->mw && c->isfloating)
568 c->x = m->mx + (m->mw / 2 - c->w / 2); /* center in x direction */
569 if((c->y - m->my + c->h) > m->mh && c->isfloating)
570 c->y = m->my + (m->mh / 2 - c->h / 2); /* center in y direction */
571 if((ev->value_mask & (CWX|CWY)) && !(ev->value_mask & (CWWidth|CWHeight)))
574 XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
582 wc.width = ev->width;
583 wc.height = ev->height;
584 wc.border_width = ev->border_width;
585 wc.sibling = ev->above;
586 wc.stack_mode = ev->detail;
587 XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
593 destroynotify(XEvent *e) {
595 XDestroyWindowEvent *ev = &e->xdestroywindow;
597 if((c = wintoclient(ev->window)))
605 for(tc = &c->mon->clients; *tc && *tc != c; tc = &(*tc)->next);
610 detachstack(Client *c) {
613 for(tc = &c->mon->stack; *tc && *tc != c; tc = &(*tc)->snext);
616 if(c == c->mon->sel) {
617 for(t = c->mon->stack; t && !ISVISIBLE(t); t = t->snext);
623 die(const char *errstr, ...) {
626 va_start(ap, errstr);
627 vfprintf(stderr, errstr, ap);
637 if(!(m = selmon->next))
642 for(m = mons; m->next; m = m->next);
644 for(m = mons; m->next != selmon; m = m->next);
650 drawbar(Monitor *m) {
652 unsigned int i, n = 0, occ = 0, urg = 0;
656 for(c = m->clients; c; c = c->next) {
664 for(i = 0; i < LENGTH(tags); i++) {
665 dc.w = TEXTW(tags[i]);
666 col = m->tagset[m->seltags] & 1 << i ? dc.sel : dc.norm;
667 drawtext(tags[i], col, urg & 1 << i);
668 drawsquare(m == selmon && selmon->sel && selmon->sel->tags & 1 << i,
669 occ & 1 << i, urg & 1 << i, col);
674 drawtext(m->lt[m->sellt]->symbol, dc.norm, False);
677 snprintf(ntext, sizeof ntext, "%u", n);
679 drawtext(ntext, dc.norm, False);
681 if(m == selmon) { /* status is only drawn on selected monitor */
688 drawtext(stext, dc.norm, False);
692 if((dc.w = dc.x - x) > bh) {
695 col = m == selmon ? dc.sel : dc.norm;
696 drawtext(m->sel->name, col, False);
697 drawsquare(m->sel->isfixed, m->sel->isfloating, False, col);
700 drawtext(NULL, dc.norm, False);
702 XCopyArea(dpy, dc.drawable, m->barwin, dc.gc, 0, 0, m->ww, bh, 0, 0);
710 for(m = mons; m; m = m->next)
715 drawsquare(Bool filled, Bool empty, Bool invert, unsigned long col[ColLast]) {
718 XRectangle r = { dc.x, dc.y, dc.w, dc.h };
720 gcv.foreground = col[invert ? ColBG : ColFG];
721 XChangeGC(dpy, dc.gc, GCForeground, &gcv);
722 x = (dc.font.ascent + dc.font.descent + 2) / 4;
726 r.width = r.height = x + 1;
727 XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
730 r.width = r.height = x;
731 XDrawRectangles(dpy, dc.drawable, dc.gc, &r, 1);
736 drawtext(const char *text, unsigned long col[ColLast], Bool invert) {
738 int i, x, y, h, len, olen;
739 XRectangle r = { dc.x, dc.y, dc.w, dc.h };
741 XSetForeground(dpy, dc.gc, col[invert ? ColFG : ColBG]);
742 XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
746 h = dc.font.ascent + dc.font.descent;
747 y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
749 /* shorten text if necessary */
750 for(len = MIN(olen, sizeof buf); len && textnw(text, len) > dc.w - h; len--);
753 memcpy(buf, text, len);
755 for(i = len; i && i > len - 3; buf[--i] = '.');
756 XSetForeground(dpy, dc.gc, col[invert ? ColBG : ColFG]);
758 XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
760 XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
764 enternotify(XEvent *e) {
767 XCrossingEvent *ev = &e->xcrossing;
769 if((ev->mode != NotifyNormal || ev->detail == NotifyInferior) && ev->window != root)
771 if((m = wintomon(ev->window)) && m != selmon) {
772 unfocus(selmon->sel);
775 if((c = wintoclient(ev->window)))
784 XExposeEvent *ev = &e->xexpose;
786 if(ev->count == 0 && (m = wintomon(ev->window)))
792 if(!c || !ISVISIBLE(c))
793 for(c = selmon->stack; c && !ISVISIBLE(c); c = c->snext);
795 unfocus(selmon->sel);
803 grabbuttons(c, True);
804 XSetWindowBorder(dpy, c->win, dc.sel[ColBorder]);
805 XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
808 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
814 focusin(XEvent *e) { /* there are some broken focus acquiring clients */
815 XFocusChangeEvent *ev = &e->xfocus;
817 if(selmon->sel && ev->window != selmon->sel->win)
818 XSetInputFocus(dpy, selmon->sel->win, RevertToPointerRoot, CurrentTime);
822 focusmon(const Arg *arg) {
827 m = dirtomon(arg->i);
828 unfocus(selmon->sel);
834 focusstack(const Arg *arg) {
835 Client *c = NULL, *i;
840 for(c = selmon->sel->next; c && !ISVISIBLE(c); c = c->next);
842 for(c = selmon->clients; c && !ISVISIBLE(c); c = c->next);
845 for(i = selmon->clients; i != selmon->sel; i = i->next)
849 for(; i; i = i->next)
860 getcolor(const char *colstr) {
861 Colormap cmap = DefaultColormap(dpy, screen);
864 if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
865 die("error, cannot allocate color '%s'\n", colstr);
870 getrootptr(int *x, int *y) {
875 return XQueryPointer(dpy, root, &dummy, &dummy, x, y, &di, &di, &dui);
882 unsigned char *p = NULL;
883 unsigned long n, extra;
886 status = XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState],
887 &real, &format, &n, &extra, (unsigned char **)&p);
888 if(status != Success)
897 gettextprop(Window w, Atom atom, char *text, unsigned int size) {
902 if(!text || size == 0)
905 XGetTextProperty(dpy, w, &name, atom);
908 if(name.encoding == XA_STRING)
909 strncpy(text, (char *)name.value, size - 1);
911 if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success && n > 0 && *list) {
912 strncpy(text, *list, size - 1);
913 XFreeStringList(list);
916 text[size - 1] = '\0';
922 grabbuttons(Client *c, Bool focused) {
926 unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
927 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
929 for(i = 0; i < LENGTH(buttons); i++)
930 if(buttons[i].click == ClkClientWin)
931 for(j = 0; j < LENGTH(modifiers); j++)
932 XGrabButton(dpy, buttons[i].button,
933 buttons[i].mask | modifiers[j],
934 c->win, False, BUTTONMASK,
935 GrabModeAsync, GrabModeSync, None, None);
938 XGrabButton(dpy, AnyButton, AnyModifier, c->win, False,
939 BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
948 unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
951 XUngrabKey(dpy, AnyKey, AnyModifier, root);
952 for(i = 0; i < LENGTH(keys); i++) {
953 if((code = XKeysymToKeycode(dpy, keys[i].keysym)))
954 for(j = 0; j < LENGTH(modifiers); j++)
955 XGrabKey(dpy, code, keys[i].mod | modifiers[j], root,
956 True, GrabModeAsync, GrabModeAsync);
962 initfont(const char *fontstr) {
963 char *def, **missing;
967 dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
970 fprintf(stderr, "dwm: missing fontset: %s\n", missing[n]);
971 XFreeStringList(missing);
974 XFontSetExtents *font_extents;
975 XFontStruct **xfonts;
978 dc.font.ascent = dc.font.descent = 0;
979 font_extents = XExtentsOfFontSet(dc.font.set);
980 n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
981 for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
982 dc.font.ascent = MAX(dc.font.ascent, (*xfonts)->ascent);
983 dc.font.descent = MAX(dc.font.descent,(*xfonts)->descent);
988 if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))
989 && !(dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
990 die("error, cannot load font: '%s'\n", fontstr);
991 dc.font.ascent = dc.font.xfont->ascent;
992 dc.font.descent = dc.font.xfont->descent;
994 dc.font.height = dc.font.ascent + dc.font.descent;
998 isprotodel(Client *c) {
1003 if(XGetWMProtocols(dpy, c->win, &protocols, &n)) {
1004 for(i = 0; !ret && i < n; i++)
1005 if(protocols[i] == wmatom[WMDelete])
1013 keypress(XEvent *e) {
1019 keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
1020 for(i = 0; i < LENGTH(keys); i++)
1021 if(keysym == keys[i].keysym
1022 && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
1024 keys[i].func(&(keys[i].arg));
1028 killclient(const Arg *arg) {
1033 if(isprotodel(selmon->sel)) {
1034 ev.type = ClientMessage;
1035 ev.xclient.window = selmon->sel->win;
1036 ev.xclient.message_type = wmatom[WMProtocols];
1037 ev.xclient.format = 32;
1038 ev.xclient.data.l[0] = wmatom[WMDelete];
1039 ev.xclient.data.l[1] = CurrentTime;
1040 XSendEvent(dpy, selmon->sel->win, False, NoEventMask, &ev);
1043 XKillClient(dpy, selmon->sel->win);
1047 manage(Window w, XWindowAttributes *wa) {
1049 Client *c, *t = NULL;
1050 Window trans = None;
1053 if(!(c = malloc(sizeof(Client))))
1054 die("fatal: could not malloc() %u bytes\n", sizeof(Client));
1058 if(XGetTransientForHint(dpy, w, &trans))
1059 t = wintoclient(trans);
1069 c->x = wa->x + c->mon->wx;
1070 c->y = wa->y + c->mon->wy;
1073 c->oldbw = wa->border_width;
1074 if(c->w == c->mon->mw && c->h == c->mon->mh) {
1080 if(c->x + WIDTH(c) > c->mon->mx + c->mon->mw)
1081 c->x = c->mon->mx + c->mon->mw - WIDTH(c);
1082 if(c->y + HEIGHT(c) > c->mon->my + c->mon->mh)
1083 c->y = c->mon->my + c->mon->mh - HEIGHT(c);
1084 c->x = MAX(c->x, c->mon->mx);
1085 /* only fix client y-offset, if the client center might cover the bar */
1086 c->y = MAX(c->y, ((c->mon->by == 0) && (c->x + (c->w / 2) >= c->mon->wx)
1087 && (c->x + (c->w / 2) < c->mon->wx + c->mon->ww)) ? bh : c->mon->my);
1090 wc.border_width = c->bw;
1091 XConfigureWindow(dpy, w, CWBorderWidth, &wc);
1092 XSetWindowBorder(dpy, w, dc.norm[ColBorder]);
1093 configure(c); /* propagates border_width, if size doesn't change */
1095 XSelectInput(dpy, w, EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask);
1096 grabbuttons(c, False);
1098 c->isfloating = trans != None || c->isfixed;
1100 XRaiseWindow(dpy, c->win);
1103 XMoveResizeWindow(dpy, c->win, c->x + 2 * sw, c->y, c->w, c->h); /* some windows require this */
1104 XMapWindow(dpy, c->win);
1105 setclientstate(c, NormalState);
1110 mappingnotify(XEvent *e) {
1111 XMappingEvent *ev = &e->xmapping;
1113 XRefreshKeyboardMapping(ev);
1114 if(ev->request == MappingKeyboard)
1119 maprequest(XEvent *e) {
1120 static XWindowAttributes wa;
1121 XMapRequestEvent *ev = &e->xmaprequest;
1123 if(!XGetWindowAttributes(dpy, ev->window, &wa))
1125 if(wa.override_redirect)
1127 if(!wintoclient(ev->window))
1128 manage(ev->window, &wa);
1132 monocle(Monitor *m) {
1135 for(c = nexttiled(m->clients); c; c = nexttiled(c->next))
1136 resize(c, m->wx, m->wy, m->ww - 2 * c->bw, m->wh - 2 * c->bw, False);
1140 movemouse(const Arg *arg) {
1141 int x, y, ocx, ocy, nx, ny;
1146 if(!(c = selmon->sel))
1151 if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
1152 None, cursor[CurMove], CurrentTime) != GrabSuccess)
1154 if(!getrootptr(&x, &y))
1157 XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
1159 case ConfigureRequest:
1162 handler[ev.type](&ev);
1165 nx = ocx + (ev.xmotion.x - x);
1166 ny = ocy + (ev.xmotion.y - y);
1167 if(snap && nx >= selmon->wx && nx <= selmon->wx + selmon->ww
1168 && ny >= selmon->wy && ny <= selmon->wy + selmon->wh) {
1169 if(abs(selmon->wx - nx) < snap)
1171 else if(abs((selmon->wx + selmon->ww) - (nx + WIDTH(c))) < snap)
1172 nx = selmon->wx + selmon->ww - WIDTH(c);
1173 if(abs(selmon->wy - ny) < snap)
1175 else if(abs((selmon->wy + selmon->wh) - (ny + HEIGHT(c))) < snap)
1176 ny = selmon->wy + selmon->wh - HEIGHT(c);
1177 if(!c->isfloating && selmon->lt[selmon->sellt]->arrange
1178 && (abs(nx - c->x) > snap || abs(ny - c->y) > snap))
1179 togglefloating(NULL);
1181 if(!selmon->lt[selmon->sellt]->arrange || c->isfloating)
1182 resize(c, nx, ny, c->w, c->h, True);
1185 } while(ev.type != ButtonRelease);
1186 XUngrabPointer(dpy, CurrentTime);
1187 if((m = ptrtomon(c->x + c->w / 2, c->y + c->h / 2)) != selmon) {
1195 nexttiled(Client *c) {
1196 for(; c && (c->isfloating || !ISVISIBLE(c)); c = c->next);
1201 ptrtomon(int x, int y) {
1204 for(m = mons; m; m = m->next)
1205 if(INRECT(x, y, m->wx, m->wy, m->ww, m->wh))
1211 propertynotify(XEvent *e) {
1214 XPropertyEvent *ev = &e->xproperty;
1216 if((ev->window == root) && (ev->atom == XA_WM_NAME))
1218 else if(ev->state == PropertyDelete)
1219 return; /* ignore */
1220 else if((c = wintoclient(ev->window))) {
1223 case XA_WM_TRANSIENT_FOR:
1224 XGetTransientForHint(dpy, c->win, &trans);
1225 if(!c->isfloating && (c->isfloating = (wintoclient(trans) != NULL)))
1228 case XA_WM_NORMAL_HINTS:
1236 if(ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
1238 if(c == selmon->sel)
1245 quit(const Arg *arg) {
1250 resize(Client *c, int x, int y, int w, int h, Bool interact) {
1253 if(applysizehints(c, &x, &y, &w, &h, interact)) {
1256 c->w = wc.width = w;
1257 c->h = wc.height = h;
1258 wc.border_width = c->bw;
1259 XConfigureWindow(dpy, c->win, CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc);
1266 resizemouse(const Arg *arg) {
1273 if(!(c = selmon->sel))
1278 if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
1279 None, cursor[CurResize], CurrentTime) != GrabSuccess)
1281 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
1283 XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
1285 case ConfigureRequest:
1288 handler[ev.type](&ev);
1291 nw = MAX(ev.xmotion.x - ocx - 2 * c->bw + 1, 1);
1292 nh = MAX(ev.xmotion.y - ocy - 2 * c->bw + 1, 1);
1293 if(snap && nw >= selmon->wx && nw <= selmon->wx + selmon->ww
1294 && nh >= selmon->wy && nh <= selmon->wy + selmon->wh)
1296 if(!c->isfloating && selmon->lt[selmon->sellt]->arrange
1297 && (abs(nw - c->w) > snap || abs(nh - c->h) > snap))
1298 togglefloating(NULL);
1300 if(!selmon->lt[selmon->sellt]->arrange || c->isfloating)
1301 resize(c, c->x, c->y, nw, nh, True);
1304 } while(ev.type != ButtonRelease);
1305 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
1306 XUngrabPointer(dpy, CurrentTime);
1307 while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
1308 if((m = ptrtomon(c->x + c->w / 2, c->y + c->h / 2)) != selmon) {
1316 restack(Monitor *m) {
1324 if(m->sel->isfloating || !m->lt[m->sellt]->arrange)
1325 XRaiseWindow(dpy, m->sel->win);
1326 if(m->lt[m->sellt]->arrange) {
1327 wc.stack_mode = Below;
1328 wc.sibling = m->barwin;
1329 for(c = m->stack; c; c = c->snext)
1330 if(!c->isfloating && ISVISIBLE(c)) {
1331 XConfigureWindow(dpy, c->win, CWSibling|CWStackMode, &wc);
1332 wc.sibling = c->win;
1336 while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
1343 /* main event loop */
1345 while(running && !XNextEvent(dpy, &ev))
1346 if(handler[ev.type])
1347 handler[ev.type](&ev); /* call handler */
1352 unsigned int i, num;
1353 Window d1, d2, *wins = NULL;
1354 XWindowAttributes wa;
1356 if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
1357 for(i = 0; i < num; i++) {
1358 if(!XGetWindowAttributes(dpy, wins[i], &wa)
1359 || wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
1361 if(wa.map_state == IsViewable || getstate(wins[i]) == IconicState)
1362 manage(wins[i], &wa);
1364 for(i = 0; i < num; i++) { /* now the transients */
1365 if(!XGetWindowAttributes(dpy, wins[i], &wa))
1367 if(XGetTransientForHint(dpy, wins[i], &d1)
1368 && (wa.map_state == IsViewable || getstate(wins[i]) == IconicState))
1369 manage(wins[i], &wa);
1377 sendmon(Client *c, Monitor *m) {
1384 c->tags = m->tagset[m->seltags]; /* assign tags of target monitor */
1392 setclientstate(Client *c, long state) {
1393 long data[] = { state, None };
1395 XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,
1396 PropModeReplace, (unsigned char *)data, 2);
1400 setlayout(const Arg *arg) {
1401 if(!arg || !arg->v || arg->v != selmon->lt[selmon->sellt])
1404 selmon->lt[selmon->sellt] = (Layout *)arg->v;
1411 /* arg > 1.0 will set mfact absolutly */
1413 setmfact(const Arg *arg) {
1416 if(!arg || !selmon->lt[selmon->sellt]->arrange)
1418 f = arg->f < 1.0 ? arg->f + selmon->mfact : arg->f - 1.0;
1419 if(f < 0.1 || f > 0.9)
1429 XSetWindowAttributes wa;
1432 screen = DefaultScreen(dpy);
1433 root = RootWindow(dpy, screen);
1435 sw = DisplayWidth(dpy, screen);
1436 sh = DisplayHeight(dpy, screen);
1437 bh = dc.h = dc.font.height + 2;
1440 wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
1441 wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
1442 wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);
1443 netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
1444 netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
1446 cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
1447 cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
1448 cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
1449 /* init appearance */
1450 dc.norm[ColBorder] = getcolor(normbordercolor);
1451 dc.norm[ColBG] = getcolor(normbgcolor);
1452 dc.norm[ColFG] = getcolor(normfgcolor);
1453 dc.sel[ColBorder] = getcolor(selbordercolor);
1454 dc.sel[ColBG] = getcolor(selbgcolor);
1455 dc.sel[ColFG] = getcolor(selfgcolor);
1456 dc.drawable = XCreatePixmap(dpy, root, DisplayWidth(dpy, screen), bh, DefaultDepth(dpy, screen));
1457 dc.gc = XCreateGC(dpy, root, 0, NULL);
1458 XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
1460 XSetFont(dpy, dc.gc, dc.font.xfont->fid);
1462 for(blw = i = 0; LENGTH(layouts) > 1 && i < LENGTH(layouts); i++) {
1463 w = TEXTW(layouts[i].symbol);
1468 /* EWMH support per view */
1469 XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
1470 PropModeReplace, (unsigned char *) netatom, NetLast);
1471 /* select for events */
1472 wa.cursor = cursor[CurNormal];
1473 wa.event_mask = SubstructureRedirectMask|SubstructureNotifyMask|ButtonPressMask
1474 |EnterWindowMask|LeaveWindowMask|StructureNotifyMask
1475 |PropertyChangeMask;
1476 XChangeWindowAttributes(dpy, root, CWEventMask|CWCursor, &wa);
1477 XSelectInput(dpy, root, wa.event_mask);
1482 showhide(Client *c) {
1485 if(ISVISIBLE(c)) { /* show clients top down */
1486 XMoveWindow(dpy, c->win, c->x, c->y);
1487 if(!c->mon->lt[c->mon->sellt]->arrange || c->isfloating)
1488 resize(c, c->x, c->y, c->w, c->h, False);
1491 else { /* hide clients bottom up */
1493 XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
1499 sigchld(int signal) {
1500 while(0 < waitpid(-1, NULL, WNOHANG));
1504 spawn(const Arg *arg) {
1505 signal(SIGCHLD, sigchld);
1508 close(ConnectionNumber(dpy));
1510 execvp(((char **)arg->v)[0], (char **)arg->v);
1511 fprintf(stderr, "dwm: execvp %s", ((char **)arg->v)[0]);
1518 tag(const Arg *arg) {
1519 if(selmon->sel && arg->ui & TAGMASK) {
1520 selmon->sel->tags = arg->ui & TAGMASK;
1526 tagmon(const Arg *arg) {
1527 if(!selmon->sel || !mons->next)
1529 sendmon(selmon->sel, dirtomon(arg->i));
1533 textnw(const char *text, unsigned int len) {
1537 XmbTextExtents(dc.font.set, text, len, NULL, &r);
1540 return XTextWidth(dc.font.xfont, text, len);
1549 for(n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
1553 c = nexttiled(m->clients);
1554 mw = m->mfact * m->ww;
1555 resize(c, m->wx, m->wy, (n == 1 ? m->ww : mw) - 2 * c->bw, m->wh - 2 * c->bw, False);
1559 x = (m->wx + mw > c->x + c->w) ? c->x + c->w + 2 * c->bw : m->wx + mw;
1561 w = (m->wx + mw > c->x + c->w) ? m->wx + m->ww - x : m->ww - mw;
1565 for(i = 0, c = nexttiled(c->next); c; c = nexttiled(c->next), i++) {
1566 resize(c, x, y, w - 2 * c->bw, /* remainder */ ((i + 1 == n)
1567 ? m->wy + m->wh - y - 2 * c->bw : h - 2 * c->bw), False);
1569 y = c->y + HEIGHT(c);
1574 togglebar(const Arg *arg) {
1575 selmon->showbar = !selmon->showbar;
1576 updatebarpos(selmon);
1577 XMoveResizeWindow(dpy, selmon->barwin, selmon->wx, selmon->by, selmon->ww, bh);
1582 togglefloating(const Arg *arg) {
1585 selmon->sel->isfloating = !selmon->sel->isfloating || selmon->sel->isfixed;
1586 if(selmon->sel->isfloating)
1587 resize(selmon->sel, selmon->sel->x, selmon->sel->y,
1588 selmon->sel->w, selmon->sel->h, False);
1593 toggletag(const Arg *arg) {
1598 mask = selmon->sel->tags ^ (arg->ui & TAGMASK);
1600 selmon->sel->tags = mask;
1606 toggleview(const Arg *arg) {
1607 unsigned int mask = selmon->tagset[selmon->seltags] ^ (arg->ui & TAGMASK);
1610 selmon->tagset[selmon->seltags] = mask;
1616 unfocus(Client *c) {
1619 grabbuttons(c, False);
1620 XSetWindowBorder(dpy, c->win, dc.norm[ColBorder]);
1621 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
1625 unmanage(Client *c) {
1628 wc.border_width = c->oldbw;
1629 /* The server grab construct avoids race conditions. */
1631 XSetErrorHandler(xerrordummy);
1632 XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */
1635 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
1636 setclientstate(c, WithdrawnState);
1639 XSetErrorHandler(xerror);
1646 unmapnotify(XEvent *e) {
1648 XUnmapEvent *ev = &e->xunmap;
1650 if((c = wintoclient(ev->window)))
1657 XSetWindowAttributes wa;
1659 wa.override_redirect = True;
1660 wa.background_pixmap = ParentRelative;
1661 wa.event_mask = ButtonPressMask|ExposureMask;
1662 for(m = mons; m; m = m->next) {
1663 m->barwin = XCreateWindow(dpy, root, m->wx, m->by, m->ww, bh, 0, DefaultDepth(dpy, screen),
1664 CopyFromParent, DefaultVisual(dpy, screen),
1665 CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
1666 XDefineCursor(dpy, m->barwin, cursor[CurNormal]);
1667 XMapRaised(dpy, m->barwin);
1672 updatebarpos(Monitor *m) {
1677 m->by = m->topbar ? m->wy : m->wy + m->wh;
1678 m->wy = m->topbar ? m->wy + bh : m->wy;
1688 Monitor *newmons = NULL, *m = NULL, *tm;
1691 XineramaScreenInfo *info = NULL;
1693 if(XineramaIsActive(dpy))
1694 info = XineramaQueryScreens(dpy, &n);
1695 for(i = 1, nn = n; i < n; i++)
1696 if(info[i - 1].x_org == info[i].x_org && info[i - 1].y_org == info[i].y_org
1697 && info[i - 1].width == info[i].width && info[i - 1].height == info[i].height)
1699 n = nn; /* we only consider unique geometries as separate screens */
1700 #endif /* XINERAMA */
1701 /* allocate monitor(s) for the new geometry setup */
1702 for(i = 0; i < n; i++) {
1703 if(!(m = (Monitor *)malloc(sizeof(Monitor))))
1704 die("fatal: could not malloc() %u bytes\n", sizeof(Monitor));
1708 /* initialise monitor(s) */
1710 if(XineramaIsActive(dpy)) {
1711 for(i = 0, m = newmons; m; m = m->next, i++) {
1712 m->num = info[i].screen_number;
1713 m->mx = m->wx = info[i].x_org;
1714 m->my = m->wy = info[i].y_org;
1715 m->mw = m->ww = info[i].width;
1716 m->mh = m->wh = info[i].height;
1721 #endif /* XINERAMA */
1722 /* default monitor setup */
1730 /* bar geometry setup */
1731 for(m = newmons; m; m = m->next) {
1732 m->sel = m->stack = m->clients = NULL;
1735 m->tagset[0] = m->tagset[1] = 1;
1737 m->showbar = showbar;
1739 m->lt[0] = &layouts[0];
1740 m->lt[1] = &layouts[1 % LENGTH(layouts)];
1743 /* reassign left over clients of disappeared monitors */
1744 for(tm = mons; tm; tm = tm->next)
1745 while(tm->clients) {
1747 tm->clients = c->next;
1753 /* select focused monitor */
1755 selmon = mons = newmons;
1756 selmon = wintomon(root);
1760 updatenumlockmask(void) {
1762 XModifierKeymap *modmap;
1765 modmap = XGetModifierMapping(dpy);
1766 for(i = 0; i < 8; i++)
1767 for(j = 0; j < modmap->max_keypermod; j++)
1768 if(modmap->modifiermap[i * modmap->max_keypermod + j]
1769 == XKeysymToKeycode(dpy, XK_Num_Lock))
1770 numlockmask = (1 << i);
1771 XFreeModifiermap(modmap);
1775 updatesizehints(Client *c) {
1779 if(!XGetWMNormalHints(dpy, c->win, &size, &msize))
1780 /* size is uninitialized, ensure that size.flags aren't used */
1782 if(size.flags & PBaseSize) {
1783 c->basew = size.base_width;
1784 c->baseh = size.base_height;
1786 else if(size.flags & PMinSize) {
1787 c->basew = size.min_width;
1788 c->baseh = size.min_height;
1791 c->basew = c->baseh = 0;
1792 if(size.flags & PResizeInc) {
1793 c->incw = size.width_inc;
1794 c->inch = size.height_inc;
1797 c->incw = c->inch = 0;
1798 if(size.flags & PMaxSize) {
1799 c->maxw = size.max_width;
1800 c->maxh = size.max_height;
1803 c->maxw = c->maxh = 0;
1804 if(size.flags & PMinSize) {
1805 c->minw = size.min_width;
1806 c->minh = size.min_height;
1808 else if(size.flags & PBaseSize) {
1809 c->minw = size.base_width;
1810 c->minh = size.base_height;
1813 c->minw = c->minh = 0;
1814 if(size.flags & PAspect) {
1815 c->mina = (float)size.min_aspect.y / size.min_aspect.x;
1816 c->maxa = (float)size.max_aspect.x / size.max_aspect.y;
1819 c->maxa = c->mina = 0.0;
1820 c->isfixed = (c->maxw && c->minw && c->maxh && c->minh
1821 && c->maxw == c->minw && c->maxh == c->minh);
1825 updatetitle(Client *c) {
1826 if(!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
1827 gettextprop(c->win, XA_WM_NAME, c->name, sizeof c->name);
1828 if(c->name[0] == '\0') /* hack to mark broken clients */
1829 strcpy(c->name, broken);
1833 updatestatus(void) {
1834 if(!gettextprop(root, XA_WM_NAME, stext, sizeof(stext)))
1835 strcpy(stext, "dwm-"VERSION);
1840 updatewmhints(Client *c) {
1843 if((wmh = XGetWMHints(dpy, c->win))) {
1844 if(c == selmon->sel && wmh->flags & XUrgencyHint) {
1845 wmh->flags &= ~XUrgencyHint;
1846 XSetWMHints(dpy, c->win, wmh);
1849 c->isurgent = (wmh->flags & XUrgencyHint) ? True : False;
1855 view(const Arg *arg) {
1856 if((arg->ui & TAGMASK) == selmon->tagset[selmon->seltags])
1858 selmon->seltags ^= 1; /* toggle sel tagset */
1859 if(arg->ui & TAGMASK)
1860 selmon->tagset[selmon->seltags] = arg->ui & TAGMASK;
1865 wintoclient(Window w) {
1869 for(m = mons; m; m = m->next)
1870 for(c = m->clients; c; c = c->next)
1877 wintomon(Window w) {
1882 if(w == root && getrootptr(&x, &y))
1883 return ptrtomon(x, y);
1884 for(m = mons; m; m = m->next)
1887 if((c = wintoclient(w)))
1892 /* There's no way to check accesses to destroyed windows, thus those cases are
1893 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
1894 * default error handler, which may call exit. */
1896 xerror(Display *dpy, XErrorEvent *ee) {
1897 if(ee->error_code == BadWindow
1898 || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
1899 || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
1900 || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
1901 || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
1902 || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
1903 || (ee->request_code == X_GrabButton && ee->error_code == BadAccess)
1904 || (ee->request_code == X_GrabKey && ee->error_code == BadAccess)
1905 || (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
1907 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
1908 ee->request_code, ee->error_code);
1909 return xerrorxlib(dpy, ee); /* may call exit */
1913 xerrordummy(Display *dpy, XErrorEvent *ee) {
1917 /* Startup Error handler to check if another window manager
1918 * is already running. */
1920 xerrorstart(Display *dpy, XErrorEvent *ee) {
1926 zoom(const Arg *arg) {
1927 Client *c = selmon->sel;
1929 if(!selmon->lt[selmon->sellt]->arrange
1930 || selmon->lt[selmon->sellt]->arrange == monocle
1931 || (selmon->sel && selmon->sel->isfloating))
1933 if(c == nexttiled(selmon->clients))
1934 if(!c || !(c = nexttiled(c->next)))
1943 main(int argc, char *argv[]) {
1944 if(argc == 2 && !strcmp("-v", argv[1]))
1945 die("dwm-"VERSION", © 2006-2009 dwm engineers, see LICENSE for details\n");
1947 die("usage: dwm [-v]\n");
1948 if(!setlocale(LC_CTYPE, "") || !XSupportsLocale())
1949 fputs("warning: no locale support\n", stderr);
1950 if(!(dpy = XOpenDisplay(NULL)))
1951 die("dwm: cannot open display\n");