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 *);
124 const char *ltsymbol;
127 int by; /* bar geometry */
128 int mx, my, mw, mh; /* screen size */
129 int wx, wy, ww, wh; /* window area */
130 unsigned int seltags;
132 unsigned int tagset[2];
145 const char *instance;
152 /* function declarations */
153 static void applyrules(Client *c);
154 static Bool applysizehints(Client *c, int *x, int *y, int *w, int *h, Bool interact);
155 static void arrange(void);
156 static void attach(Client *c);
157 static void attachstack(Client *c);
158 static void buttonpress(XEvent *e);
159 static void checkotherwm(void);
160 static void cleanup(void);
161 static void cleanupmons(void);
162 static void clearurgent(Client *c);
163 static void configure(Client *c);
164 static void configurenotify(XEvent *e);
165 static void configurerequest(XEvent *e);
166 static void destroynotify(XEvent *e);
167 static void detach(Client *c);
168 static void detachstack(Client *c);
169 static void die(const char *errstr, ...);
170 static Monitor *dirtomon(int dir);
171 static void drawbar(Monitor *m);
172 static void drawbars(void);
173 static void drawsquare(Bool filled, Bool empty, Bool invert, unsigned long col[ColLast]);
174 static void drawtext(const char *text, unsigned long col[ColLast], Bool invert);
175 static void enternotify(XEvent *e);
176 static void expose(XEvent *e);
177 static void focus(Client *c);
178 static void focusin(XEvent *e);
179 static void focusmon(const Arg *arg);
180 static void focusstack(const Arg *arg);
181 static unsigned long getcolor(const char *colstr);
182 static Bool getrootptr(int *x, int *y);
183 static long getstate(Window w);
184 static Bool gettextprop(Window w, Atom atom, char *text, unsigned int size);
185 static void grabbuttons(Client *c, Bool focused);
186 static void grabkeys(void);
187 static void initfont(const char *fontstr);
188 static Bool isprotodel(Client *c);
189 static void keypress(XEvent *e);
190 static void killclient(const Arg *arg);
191 static void manage(Window w, XWindowAttributes *wa);
192 static void mappingnotify(XEvent *e);
193 static void maprequest(XEvent *e);
194 static void monocle(Monitor *m);
195 static void movemouse(const Arg *arg);
196 static Client *nexttiled(Client *c);
197 static Monitor *ptrtomon(int x, int y);
198 static void propertynotify(XEvent *e);
199 static void quit(const Arg *arg);
200 static void resize(Client *c, int x, int y, int w, int h, Bool interact);
201 static void resizemouse(const Arg *arg);
202 static void restack(Monitor *m);
203 static void run(void);
204 static void scan(void);
205 static void sendmon(Client *c, Monitor *m);
206 static void setclientstate(Client *c, long state);
207 static void setlayout(const Arg *arg);
208 static void setmfact(const Arg *arg);
209 static void setup(void);
210 static void showhide(Client *c);
211 static void sigchld(int unused);
212 static void spawn(const Arg *arg);
213 static void tag(const Arg *arg);
214 static void tagmon(const Arg *arg);
215 static int textnw(const char *text, unsigned int len);
216 static void tile(Monitor *);
217 static void togglebar(const Arg *arg);
218 static void togglefloating(const Arg *arg);
219 static void toggletag(const Arg *arg);
220 static void toggleview(const Arg *arg);
221 static void unfocus(Client *c);
222 static void unmanage(Client *c, Bool destroyed);
223 static void unmapnotify(XEvent *e);
224 static void updategeom(void);
225 static void updatebarpos(Monitor *m);
226 static void updatebars(void);
227 static void updatenumlockmask(void);
228 static void updatesizehints(Client *c);
229 static void updatestatus(void);
230 static void updatetitle(Client *c);
231 static void updatewmhints(Client *c);
232 static void view(const Arg *arg);
233 static Client *wintoclient(Window w);
234 static Monitor *wintomon(Window w);
235 static int xerror(Display *dpy, XErrorEvent *ee);
236 static int xerrordummy(Display *dpy, XErrorEvent *ee);
237 static int xerrorstart(Display *dpy, XErrorEvent *ee);
238 static void zoom(const Arg *arg);
241 static const char broken[] = "broken";
242 static char stext[256];
244 static int sw, sh; /* X display screen geometry width, height */
245 static int bh, blw = 0; /* bar geometry */
246 static int (*xerrorxlib)(Display *, XErrorEvent *);
247 static unsigned int numlockmask = 0;
248 static void (*handler[LASTEvent]) (XEvent *) = {
249 [ButtonPress] = buttonpress,
250 [ConfigureRequest] = configurerequest,
251 [ConfigureNotify] = configurenotify,
252 [DestroyNotify] = destroynotify,
253 [EnterNotify] = enternotify,
256 [KeyPress] = keypress,
257 [MappingNotify] = mappingnotify,
258 [MapRequest] = maprequest,
259 [PropertyNotify] = propertynotify,
260 [UnmapNotify] = unmapnotify
262 static Atom wmatom[WMLast], netatom[NetLast];
264 static Bool running = True;
265 static Cursor cursor[CurLast];
268 static Monitor *mons = NULL, *selmon = NULL;
271 /* configuration, allows nested code to access above variables */
274 /* compile-time check if all tags fit into an unsigned int bit array. */
275 struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; };
277 /* function implementations */
279 applyrules(Client *c) {
280 const char *class, *instance;
284 XClassHint ch = { 0 };
287 c->isfloating = c->tags = 0;
288 if(XGetClassHint(dpy, c->win, &ch)) {
289 class = ch.res_class ? ch.res_class : broken;
290 instance = ch.res_name ? ch.res_name : broken;
291 for(i = 0; i < LENGTH(rules); i++) {
293 if((!r->title || strstr(c->name, r->title))
294 && (!r->class || strstr(class, r->class))
295 && (!r->instance || strstr(instance, r->instance)))
297 c->isfloating = r->isfloating;
299 for(m = mons; m && m->num != r->monitor; m = m->next);
309 c->tags = c->tags & TAGMASK ? c->tags & TAGMASK : c->mon->tagset[c->mon->seltags];
313 applysizehints(Client *c, int *x, int *y, int *w, int *h, Bool interact) {
317 /* set minimum possible */
325 if(*x + *w + 2 * c->bw < 0)
327 if(*y + *h + 2 * c->bw < 0)
331 if(*x > m->mx + m->mw)
332 *x = m->mx + m->mw - WIDTH(c);
333 if(*y > m->my + m->mh)
334 *y = m->my + m->mh - HEIGHT(c);
335 if(*x + *w + 2 * c->bw < m->mx)
337 if(*y + *h + 2 * c->bw < m->my)
344 if(resizehints || c->isfloating) {
345 /* see last two sentences in ICCCM 4.1.2.3 */
346 baseismin = c->basew == c->minw && c->baseh == c->minh;
347 if(!baseismin) { /* temporarily remove base dimensions */
351 /* adjust for aspect limits */
352 if(c->mina > 0 && c->maxa > 0) {
353 if(c->maxa < (float)*w / *h)
354 *w = *h * c->maxa + 0.5;
355 else if(c->mina < (float)*h / *w)
356 *h = *w * c->mina + 0.5;
358 if(baseismin) { /* increment calculation requires this */
362 /* adjust for increment value */
367 /* restore base dimensions */
370 *w = MAX(*w, c->minw);
371 *h = MAX(*h, c->minh);
373 *w = MIN(*w, c->maxw);
375 *h = MIN(*h, c->maxh);
377 return *x != c->x || *y != c->y || *w != c->w || *h != c->h;
384 for(m = mons; m; m = m->next)
387 for(m = mons; m; m = m->next) {
388 m->ltsymbol = m->lt[m->sellt]->symbol;
389 if(m->lt[m->sellt]->arrange)
390 m->lt[m->sellt]->arrange(m);
397 c->next = c->mon->clients;
402 attachstack(Client *c) {
403 c->snext = c->mon->stack;
408 buttonpress(XEvent *e) {
409 unsigned int i, x, click;
413 XButtonPressedEvent *ev = &e->xbutton;
416 /* focus monitor if necessary */
417 if((m = wintomon(ev->window)) && m != selmon) {
418 unfocus(selmon->sel);
422 if(ev->window == selmon->barwin) {
426 } while(ev->x >= x && ++i < LENGTH(tags));
427 if(i < LENGTH(tags)) {
431 else if(ev->x < x + blw)
433 else if(ev->x > selmon->wx + selmon->ww - TEXTW(stext))
434 click = ClkStatusText;
438 else if((c = wintoclient(ev->window))) {
440 click = ClkClientWin;
442 for(i = 0; i < LENGTH(buttons); i++)
443 if(click == buttons[i].click && buttons[i].func && buttons[i].button == ev->button
444 && CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
445 buttons[i].func(click == ClkTagBar && buttons[i].arg.i == 0 ? &arg : &buttons[i].arg);
451 xerrorxlib = XSetErrorHandler(xerrorstart);
452 /* this causes an error if some other window manager is running */
453 XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask);
456 die("dwm: another window manager is already running\n");
457 XSetErrorHandler(xerror);
464 Layout foo = { "", NULL };
468 selmon->lt[selmon->sellt] = &foo;
469 for(m = mons; m; m = m->next)
471 unmanage(m->stack, False);
473 XFreeFontSet(dpy, dc.font.set);
475 XFreeFont(dpy, dc.font.xfont);
476 XUngrabKey(dpy, AnyKey, AnyModifier, root);
477 XFreePixmap(dpy, dc.drawable);
479 XFreeCursor(dpy, cursor[CurNormal]);
480 XFreeCursor(dpy, cursor[CurResize]);
481 XFreeCursor(dpy, cursor[CurMove]);
484 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
493 XUnmapWindow(dpy, mons->barwin);
494 XDestroyWindow(dpy, mons->barwin);
501 clearurgent(Client *c) {
505 if(!(wmh = XGetWMHints(dpy, c->win)))
507 wmh->flags &= ~XUrgencyHint;
508 XSetWMHints(dpy, c->win, wmh);
513 configure(Client *c) {
516 ce.type = ConfigureNotify;
524 ce.border_width = c->bw;
526 ce.override_redirect = False;
527 XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce);
531 configurenotify(XEvent *e) {
533 XConfigureEvent *ev = &e->xconfigure;
535 if(ev->window == root) {
540 XFreePixmap(dpy, dc.drawable);
541 dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
543 for(m = mons; m; m = m->next)
544 XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, m->ww, bh);
550 configurerequest(XEvent *e) {
553 XConfigureRequestEvent *ev = &e->xconfigurerequest;
556 if((c = wintoclient(ev->window))) {
557 if(ev->value_mask & CWBorderWidth)
558 c->bw = ev->border_width;
559 else if(c->isfloating || !selmon->lt[selmon->sellt]->arrange) {
561 if(ev->value_mask & CWX)
562 c->x = m->mx + ev->x;
563 if(ev->value_mask & CWY)
564 c->y = m->my + ev->y;
565 if(ev->value_mask & CWWidth)
567 if(ev->value_mask & CWHeight)
569 if((c->x + c->w) > m->mx + m->mw && c->isfloating)
570 c->x = m->mx + (m->mw / 2 - c->w / 2); /* center in x direction */
571 if((c->y + c->h) > m->my + m->mh && c->isfloating)
572 c->y = m->my + (m->mh / 2 - c->h / 2); /* center in y direction */
573 if((ev->value_mask & (CWX|CWY)) && !(ev->value_mask & (CWWidth|CWHeight)))
576 XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
584 wc.width = ev->width;
585 wc.height = ev->height;
586 wc.border_width = ev->border_width;
587 wc.sibling = ev->above;
588 wc.stack_mode = ev->detail;
589 XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
595 destroynotify(XEvent *e) {
597 XDestroyWindowEvent *ev = &e->xdestroywindow;
599 if((c = wintoclient(ev->window)))
607 for(tc = &c->mon->clients; *tc && *tc != c; tc = &(*tc)->next);
612 detachstack(Client *c) {
615 for(tc = &c->mon->stack; *tc && *tc != c; tc = &(*tc)->snext);
618 if(c == c->mon->sel) {
619 for(t = c->mon->stack; t && !ISVISIBLE(t); t = t->snext);
625 die(const char *errstr, ...) {
628 va_start(ap, errstr);
629 vfprintf(stderr, errstr, ap);
639 if(!(m = selmon->next))
644 for(m = mons; m->next; m = m->next);
646 for(m = mons; m->next != selmon; m = m->next);
652 drawbar(Monitor *m) {
654 unsigned int i, occ = 0, urg = 0;
658 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);
672 dc.w = blw = TEXTW(m->ltsymbol);
673 drawtext(m->ltsymbol, dc.norm, False);
676 if(m == selmon) { /* status is only drawn on selected monitor */
683 drawtext(stext, dc.norm, False);
687 if((dc.w = dc.x - x) > bh) {
690 col = m == selmon ? dc.sel : dc.norm;
691 drawtext(m->sel->name, col, False);
692 drawsquare(m->sel->isfixed, m->sel->isfloating, False, col);
695 drawtext(NULL, dc.norm, False);
697 XCopyArea(dpy, dc.drawable, m->barwin, dc.gc, 0, 0, m->ww, bh, 0, 0);
705 for(m = mons; m; m = m->next)
710 drawsquare(Bool filled, Bool empty, Bool invert, unsigned long col[ColLast]) {
713 XRectangle r = { dc.x, dc.y, dc.w, dc.h };
715 gcv.foreground = col[invert ? ColBG : ColFG];
716 XChangeGC(dpy, dc.gc, GCForeground, &gcv);
717 x = (dc.font.ascent + dc.font.descent + 2) / 4;
721 r.width = r.height = x + 1;
722 XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
725 r.width = r.height = x;
726 XDrawRectangles(dpy, dc.drawable, dc.gc, &r, 1);
731 drawtext(const char *text, unsigned long col[ColLast], Bool invert) {
733 int i, x, y, h, len, olen;
734 XRectangle r = { dc.x, dc.y, dc.w, dc.h };
736 XSetForeground(dpy, dc.gc, col[invert ? ColFG : ColBG]);
737 XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
741 h = dc.font.ascent + dc.font.descent;
742 y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
744 /* shorten text if necessary */
745 for(len = MIN(olen, sizeof buf); len && textnw(text, len) > dc.w - h; len--);
748 memcpy(buf, text, len);
750 for(i = len; i && i > len - 3; buf[--i] = '.');
751 XSetForeground(dpy, dc.gc, col[invert ? ColBG : ColFG]);
753 XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
755 XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
759 enternotify(XEvent *e) {
762 XCrossingEvent *ev = &e->xcrossing;
764 if((ev->mode != NotifyNormal || ev->detail == NotifyInferior) && ev->window != root)
766 if((m = wintomon(ev->window)) && m != selmon) {
767 unfocus(selmon->sel);
770 if((c = wintoclient(ev->window)))
779 XExposeEvent *ev = &e->xexpose;
781 if(ev->count == 0 && (m = wintomon(ev->window)))
787 if(!c || !ISVISIBLE(c))
788 for(c = selmon->stack; c && !ISVISIBLE(c); c = c->snext);
790 unfocus(selmon->sel);
798 grabbuttons(c, True);
799 XSetWindowBorder(dpy, c->win, dc.sel[ColBorder]);
800 XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
803 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
809 focusin(XEvent *e) { /* there are some broken focus acquiring clients */
810 XFocusChangeEvent *ev = &e->xfocus;
812 if(selmon->sel && ev->window != selmon->sel->win)
813 XSetInputFocus(dpy, selmon->sel->win, RevertToPointerRoot, CurrentTime);
817 focusmon(const Arg *arg) {
822 m = dirtomon(arg->i);
823 unfocus(selmon->sel);
829 focusstack(const Arg *arg) {
830 Client *c = NULL, *i;
835 for(c = selmon->sel->next; c && !ISVISIBLE(c); c = c->next);
837 for(c = selmon->clients; c && !ISVISIBLE(c); c = c->next);
840 for(i = selmon->clients; i != selmon->sel; i = i->next)
844 for(; i; i = i->next)
855 getcolor(const char *colstr) {
856 Colormap cmap = DefaultColormap(dpy, screen);
859 if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
860 die("error, cannot allocate color '%s'\n", colstr);
865 getrootptr(int *x, int *y) {
870 return XQueryPointer(dpy, root, &dummy, &dummy, x, y, &di, &di, &dui);
877 unsigned char *p = NULL;
878 unsigned long n, extra;
881 status = XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState],
882 &real, &format, &n, &extra, (unsigned char **)&p);
883 if(status != Success)
892 gettextprop(Window w, Atom atom, char *text, unsigned int size) {
897 if(!text || size == 0)
900 XGetTextProperty(dpy, w, &name, atom);
903 if(name.encoding == XA_STRING)
904 strncpy(text, (char *)name.value, size - 1);
906 if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success && n > 0 && *list) {
907 strncpy(text, *list, size - 1);
908 XFreeStringList(list);
911 text[size - 1] = '\0';
917 grabbuttons(Client *c, Bool focused) {
921 unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
922 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
924 for(i = 0; i < LENGTH(buttons); i++)
925 if(buttons[i].click == ClkClientWin)
926 for(j = 0; j < LENGTH(modifiers); j++)
927 XGrabButton(dpy, buttons[i].button,
928 buttons[i].mask | modifiers[j],
929 c->win, False, BUTTONMASK,
930 GrabModeAsync, GrabModeSync, None, None);
933 XGrabButton(dpy, AnyButton, AnyModifier, c->win, False,
934 BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
943 unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
946 XUngrabKey(dpy, AnyKey, AnyModifier, root);
947 for(i = 0; i < LENGTH(keys); i++) {
948 if((code = XKeysymToKeycode(dpy, keys[i].keysym)))
949 for(j = 0; j < LENGTH(modifiers); j++)
950 XGrabKey(dpy, code, keys[i].mod | modifiers[j], root,
951 True, GrabModeAsync, GrabModeAsync);
957 initfont(const char *fontstr) {
958 char *def, **missing;
962 dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
965 fprintf(stderr, "dwm: missing fontset: %s\n", missing[n]);
966 XFreeStringList(missing);
969 XFontSetExtents *font_extents;
970 XFontStruct **xfonts;
973 dc.font.ascent = dc.font.descent = 0;
974 font_extents = XExtentsOfFontSet(dc.font.set);
975 n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
976 for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
977 dc.font.ascent = MAX(dc.font.ascent, (*xfonts)->ascent);
978 dc.font.descent = MAX(dc.font.descent,(*xfonts)->descent);
983 if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))
984 && !(dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
985 die("error, cannot load font: '%s'\n", fontstr);
986 dc.font.ascent = dc.font.xfont->ascent;
987 dc.font.descent = dc.font.xfont->descent;
989 dc.font.height = dc.font.ascent + dc.font.descent;
993 isprotodel(Client *c) {
998 if(XGetWMProtocols(dpy, c->win, &protocols, &n)) {
999 for(i = 0; !ret && i < n; i++)
1000 if(protocols[i] == wmatom[WMDelete])
1008 keypress(XEvent *e) {
1014 keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
1015 for(i = 0; i < LENGTH(keys); i++)
1016 if(keysym == keys[i].keysym
1017 && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
1019 keys[i].func(&(keys[i].arg));
1023 killclient(const Arg *arg) {
1028 if(isprotodel(selmon->sel)) {
1029 ev.type = ClientMessage;
1030 ev.xclient.window = selmon->sel->win;
1031 ev.xclient.message_type = wmatom[WMProtocols];
1032 ev.xclient.format = 32;
1033 ev.xclient.data.l[0] = wmatom[WMDelete];
1034 ev.xclient.data.l[1] = CurrentTime;
1035 XSendEvent(dpy, selmon->sel->win, False, NoEventMask, &ev);
1039 XSetErrorHandler(xerrordummy);
1040 XSetCloseDownMode(dpy, DestroyAll);
1041 XKillClient(dpy, selmon->sel->win);
1043 XSetErrorHandler(xerror);
1049 manage(Window w, XWindowAttributes *wa) {
1051 Client *c, *t = NULL;
1052 Window trans = None;
1055 if(!(c = malloc(sizeof(Client))))
1056 die("fatal: could not malloc() %u bytes\n", sizeof(Client));
1060 if(XGetTransientForHint(dpy, w, &trans))
1061 t = wintoclient(trans);
1071 c->x = wa->x + c->mon->wx;
1072 c->y = wa->y + c->mon->wy;
1075 c->oldbw = wa->border_width;
1076 if(c->w == c->mon->mw && c->h == c->mon->mh) {
1082 if(c->x + WIDTH(c) > c->mon->mx + c->mon->mw)
1083 c->x = c->mon->mx + c->mon->mw - WIDTH(c);
1084 if(c->y + HEIGHT(c) > c->mon->my + c->mon->mh)
1085 c->y = c->mon->my + c->mon->mh - HEIGHT(c);
1086 c->x = MAX(c->x, c->mon->mx);
1087 /* only fix client y-offset, if the client center might cover the bar */
1088 c->y = MAX(c->y, ((c->mon->by == 0) && (c->x + (c->w / 2) >= c->mon->wx)
1089 && (c->x + (c->w / 2) < c->mon->wx + c->mon->ww)) ? bh : c->mon->my);
1092 wc.border_width = c->bw;
1093 XConfigureWindow(dpy, w, CWBorderWidth, &wc);
1094 XSetWindowBorder(dpy, w, dc.norm[ColBorder]);
1095 configure(c); /* propagates border_width, if size doesn't change */
1097 XSelectInput(dpy, w, EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask);
1098 grabbuttons(c, False);
1100 c->isfloating = trans != None || c->isfixed;
1102 XRaiseWindow(dpy, c->win);
1105 XMoveResizeWindow(dpy, c->win, c->x + 2 * sw, c->y, c->w, c->h); /* some windows require this */
1106 XMapWindow(dpy, c->win);
1107 setclientstate(c, NormalState);
1112 mappingnotify(XEvent *e) {
1113 XMappingEvent *ev = &e->xmapping;
1115 XRefreshKeyboardMapping(ev);
1116 if(ev->request == MappingKeyboard)
1121 maprequest(XEvent *e) {
1122 static XWindowAttributes wa;
1123 XMapRequestEvent *ev = &e->xmaprequest;
1125 if(!XGetWindowAttributes(dpy, ev->window, &wa))
1127 if(wa.override_redirect)
1129 if(!wintoclient(ev->window))
1130 manage(ev->window, &wa);
1134 monocle(Monitor *m) {
1135 static char ntext[8];
1139 for(c = m->clients; c; c = c->next)
1142 if(n > 0) { /* override layout symbol */
1143 snprintf(ntext, sizeof ntext, "[%d]", n);
1144 m->ltsymbol = ntext;
1146 for(c = nexttiled(m->clients); c; c = nexttiled(c->next))
1147 resize(c, m->wx, m->wy, m->ww - 2 * c->bw, m->wh - 2 * c->bw, False);
1151 movemouse(const Arg *arg) {
1152 int x, y, ocx, ocy, nx, ny;
1157 if(!(c = selmon->sel))
1162 if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
1163 None, cursor[CurMove], CurrentTime) != GrabSuccess)
1165 if(!getrootptr(&x, &y))
1168 XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
1170 case ConfigureRequest:
1173 handler[ev.type](&ev);
1176 nx = ocx + (ev.xmotion.x - x);
1177 ny = ocy + (ev.xmotion.y - y);
1178 if(snap && nx >= selmon->wx && nx <= selmon->wx + selmon->ww
1179 && ny >= selmon->wy && ny <= selmon->wy + selmon->wh) {
1180 if(abs(selmon->wx - nx) < snap)
1182 else if(abs((selmon->wx + selmon->ww) - (nx + WIDTH(c))) < snap)
1183 nx = selmon->wx + selmon->ww - WIDTH(c);
1184 if(abs(selmon->wy - ny) < snap)
1186 else if(abs((selmon->wy + selmon->wh) - (ny + HEIGHT(c))) < snap)
1187 ny = selmon->wy + selmon->wh - HEIGHT(c);
1188 if(!c->isfloating && selmon->lt[selmon->sellt]->arrange
1189 && (abs(nx - c->x) > snap || abs(ny - c->y) > snap))
1190 togglefloating(NULL);
1192 if(!selmon->lt[selmon->sellt]->arrange || c->isfloating)
1193 resize(c, nx, ny, c->w, c->h, True);
1196 } while(ev.type != ButtonRelease);
1197 XUngrabPointer(dpy, CurrentTime);
1198 if((m = ptrtomon(c->x + c->w / 2, c->y + c->h / 2)) != selmon) {
1206 nexttiled(Client *c) {
1207 for(; c && (c->isfloating || !ISVISIBLE(c)); c = c->next);
1212 ptrtomon(int x, int y) {
1215 for(m = mons; m; m = m->next)
1216 if(INRECT(x, y, m->wx, m->wy, m->ww, m->wh))
1222 propertynotify(XEvent *e) {
1225 XPropertyEvent *ev = &e->xproperty;
1227 if((ev->window == root) && (ev->atom == XA_WM_NAME))
1229 else if(ev->state == PropertyDelete)
1230 return; /* ignore */
1231 else if((c = wintoclient(ev->window))) {
1234 case XA_WM_TRANSIENT_FOR:
1235 XGetTransientForHint(dpy, c->win, &trans);
1236 if(!c->isfloating && (c->isfloating = (wintoclient(trans) != NULL)))
1239 case XA_WM_NORMAL_HINTS:
1247 if(ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
1249 if(c == c->mon->sel)
1256 quit(const Arg *arg) {
1261 resize(Client *c, int x, int y, int w, int h, Bool interact) {
1264 if(applysizehints(c, &x, &y, &w, &h, interact)) {
1267 c->w = wc.width = w;
1268 c->h = wc.height = h;
1269 wc.border_width = c->bw;
1270 XConfigureWindow(dpy, c->win, CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc);
1277 resizemouse(const Arg *arg) {
1284 if(!(c = selmon->sel))
1289 if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
1290 None, cursor[CurResize], CurrentTime) != GrabSuccess)
1292 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
1294 XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
1296 case ConfigureRequest:
1299 handler[ev.type](&ev);
1302 nw = MAX(ev.xmotion.x - ocx - 2 * c->bw + 1, 1);
1303 nh = MAX(ev.xmotion.y - ocy - 2 * c->bw + 1, 1);
1304 if(snap && nw >= selmon->wx && nw <= selmon->wx + selmon->ww
1305 && nh >= selmon->wy && nh <= selmon->wy + selmon->wh)
1307 if(!c->isfloating && selmon->lt[selmon->sellt]->arrange
1308 && (abs(nw - c->w) > snap || abs(nh - c->h) > snap))
1309 togglefloating(NULL);
1311 if(!selmon->lt[selmon->sellt]->arrange || c->isfloating)
1312 resize(c, c->x, c->y, nw, nh, True);
1315 } while(ev.type != ButtonRelease);
1316 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
1317 XUngrabPointer(dpy, CurrentTime);
1318 while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
1319 if((m = ptrtomon(c->x + c->w / 2, c->y + c->h / 2)) != selmon) {
1327 restack(Monitor *m) {
1335 if(m->sel->isfloating || !m->lt[m->sellt]->arrange)
1336 XRaiseWindow(dpy, m->sel->win);
1337 if(m->lt[m->sellt]->arrange) {
1338 wc.stack_mode = Below;
1339 wc.sibling = m->barwin;
1340 for(c = m->stack; c; c = c->snext)
1341 if(!c->isfloating && ISVISIBLE(c)) {
1342 XConfigureWindow(dpy, c->win, CWSibling|CWStackMode, &wc);
1343 wc.sibling = c->win;
1347 while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
1354 /* main event loop */
1356 while(running && !XNextEvent(dpy, &ev))
1357 if(handler[ev.type])
1358 handler[ev.type](&ev); /* call handler */
1363 unsigned int i, num;
1364 Window d1, d2, *wins = NULL;
1365 XWindowAttributes wa;
1367 if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
1368 for(i = 0; i < num; i++) {
1369 if(!XGetWindowAttributes(dpy, wins[i], &wa)
1370 || wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
1372 if(wa.map_state == IsViewable || getstate(wins[i]) == IconicState)
1373 manage(wins[i], &wa);
1375 for(i = 0; i < num; i++) { /* now the transients */
1376 if(!XGetWindowAttributes(dpy, wins[i], &wa))
1378 if(XGetTransientForHint(dpy, wins[i], &d1)
1379 && (wa.map_state == IsViewable || getstate(wins[i]) == IconicState))
1380 manage(wins[i], &wa);
1388 sendmon(Client *c, Monitor *m) {
1395 c->tags = m->tagset[m->seltags]; /* assign tags of target monitor */
1403 setclientstate(Client *c, long state) {
1404 long data[] = { state, None };
1406 XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,
1407 PropModeReplace, (unsigned char *)data, 2);
1411 setlayout(const Arg *arg) {
1412 if(!arg || !arg->v || arg->v != selmon->lt[selmon->sellt])
1415 selmon->lt[selmon->sellt] = (Layout *)arg->v;
1422 /* arg > 1.0 will set mfact absolutly */
1424 setmfact(const Arg *arg) {
1427 if(!arg || !selmon->lt[selmon->sellt]->arrange)
1429 f = arg->f < 1.0 ? arg->f + selmon->mfact : arg->f - 1.0;
1430 if(f < 0.1 || f > 0.9)
1438 XSetWindowAttributes wa;
1440 /* clean up any zombies immediately */
1444 screen = DefaultScreen(dpy);
1445 root = RootWindow(dpy, screen);
1447 sw = DisplayWidth(dpy, screen);
1448 sh = DisplayHeight(dpy, screen);
1449 bh = dc.h = dc.font.height + 2;
1452 wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
1453 wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
1454 wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);
1455 netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
1456 netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
1458 cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
1459 cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
1460 cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
1461 /* init appearance */
1462 dc.norm[ColBorder] = getcolor(normbordercolor);
1463 dc.norm[ColBG] = getcolor(normbgcolor);
1464 dc.norm[ColFG] = getcolor(normfgcolor);
1465 dc.sel[ColBorder] = getcolor(selbordercolor);
1466 dc.sel[ColBG] = getcolor(selbgcolor);
1467 dc.sel[ColFG] = getcolor(selfgcolor);
1468 dc.drawable = XCreatePixmap(dpy, root, DisplayWidth(dpy, screen), bh, DefaultDepth(dpy, screen));
1469 dc.gc = XCreateGC(dpy, root, 0, NULL);
1470 XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
1472 XSetFont(dpy, dc.gc, dc.font.xfont->fid);
1476 /* EWMH support per view */
1477 XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
1478 PropModeReplace, (unsigned char *) netatom, NetLast);
1479 /* select for events */
1480 wa.cursor = cursor[CurNormal];
1481 wa.event_mask = SubstructureRedirectMask|SubstructureNotifyMask|ButtonPressMask
1482 |EnterWindowMask|LeaveWindowMask|StructureNotifyMask
1483 |PropertyChangeMask;
1484 XChangeWindowAttributes(dpy, root, CWEventMask|CWCursor, &wa);
1485 XSelectInput(dpy, root, wa.event_mask);
1490 showhide(Client *c) {
1493 if(ISVISIBLE(c)) { /* show clients top down */
1494 XMoveWindow(dpy, c->win, c->x, c->y);
1495 if(!c->mon->lt[c->mon->sellt]->arrange || c->isfloating)
1496 resize(c, c->x, c->y, c->w, c->h, False);
1499 else { /* hide clients bottom up */
1501 XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
1507 sigchld(int unused) {
1508 if(signal(SIGCHLD, sigchld) == SIG_ERR)
1509 die("Can't install SIGCHLD handler");
1510 while(0 < waitpid(-1, NULL, WNOHANG));
1514 spawn(const Arg *arg) {
1517 close(ConnectionNumber(dpy));
1519 execvp(((char **)arg->v)[0], (char **)arg->v);
1520 fprintf(stderr, "dwm: execvp %s", ((char **)arg->v)[0]);
1527 tag(const Arg *arg) {
1528 if(selmon->sel && arg->ui & TAGMASK) {
1529 selmon->sel->tags = arg->ui & TAGMASK;
1535 tagmon(const Arg *arg) {
1536 if(!selmon->sel || !mons->next)
1538 sendmon(selmon->sel, dirtomon(arg->i));
1542 textnw(const char *text, unsigned int len) {
1546 XmbTextExtents(dc.font.set, text, len, NULL, &r);
1549 return XTextWidth(dc.font.xfont, text, len);
1558 for(n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
1562 c = nexttiled(m->clients);
1563 mw = m->mfact * m->ww;
1564 resize(c, m->wx, m->wy, (n == 1 ? m->ww : mw) - 2 * c->bw, m->wh - 2 * c->bw, False);
1568 x = (m->wx + mw > c->x + c->w) ? c->x + c->w + 2 * c->bw : m->wx + mw;
1570 w = (m->wx + mw > c->x + c->w) ? m->wx + m->ww - x : m->ww - mw;
1574 for(i = 0, c = nexttiled(c->next); c; c = nexttiled(c->next), i++) {
1575 resize(c, x, y, w - 2 * c->bw, /* remainder */ ((i + 1 == n)
1576 ? m->wy + m->wh - y - 2 * c->bw : h - 2 * c->bw), False);
1578 y = c->y + HEIGHT(c);
1583 togglebar(const Arg *arg) {
1584 selmon->showbar = !selmon->showbar;
1585 updatebarpos(selmon);
1586 XMoveResizeWindow(dpy, selmon->barwin, selmon->wx, selmon->by, selmon->ww, bh);
1591 togglefloating(const Arg *arg) {
1594 selmon->sel->isfloating = !selmon->sel->isfloating || selmon->sel->isfixed;
1595 if(selmon->sel->isfloating)
1596 resize(selmon->sel, selmon->sel->x, selmon->sel->y,
1597 selmon->sel->w, selmon->sel->h, False);
1602 toggletag(const Arg *arg) {
1603 unsigned int newtags;
1607 newtags = selmon->sel->tags ^ (arg->ui & TAGMASK);
1609 selmon->sel->tags = newtags;
1615 toggleview(const Arg *arg) {
1616 unsigned int newtagset = selmon->tagset[selmon->seltags] ^ (arg->ui & TAGMASK);
1619 selmon->tagset[selmon->seltags] = newtagset;
1625 unfocus(Client *c) {
1628 grabbuttons(c, False);
1629 XSetWindowBorder(dpy, c->win, dc.norm[ColBorder]);
1630 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
1634 unmanage(Client *c, Bool destroyed) {
1637 /* The server grab construct avoids race conditions. */
1641 wc.border_width = c->oldbw;
1643 XSetErrorHandler(xerrordummy);
1644 XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */
1645 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
1646 setclientstate(c, WithdrawnState);
1648 XSetErrorHandler(xerror);
1657 unmapnotify(XEvent *e) {
1659 XUnmapEvent *ev = &e->xunmap;
1661 if((c = wintoclient(ev->window)))
1668 XSetWindowAttributes wa;
1670 wa.override_redirect = True;
1671 wa.background_pixmap = ParentRelative;
1672 wa.event_mask = ButtonPressMask|ExposureMask;
1673 for(m = mons; m; m = m->next) {
1674 m->barwin = XCreateWindow(dpy, root, m->wx, m->by, m->ww, bh, 0, DefaultDepth(dpy, screen),
1675 CopyFromParent, DefaultVisual(dpy, screen),
1676 CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
1677 XDefineCursor(dpy, m->barwin, cursor[CurNormal]);
1678 XMapRaised(dpy, m->barwin);
1683 updatebarpos(Monitor *m) {
1688 m->by = m->topbar ? m->wy : m->wy + m->wh;
1689 m->wy = m->topbar ? m->wy + bh : m->wy;
1699 Monitor *newmons = NULL, *m = NULL, *tm;
1703 XineramaScreenInfo *info = NULL;
1705 if(XineramaIsActive(dpy))
1706 info = XineramaQueryScreens(dpy, &n);
1707 for(i = 1, nn = n; i < n; i++)
1708 if(info[i - 1].x_org == info[i].x_org && info[i - 1].y_org == info[i].y_org
1709 && info[i - 1].width == info[i].width && info[i - 1].height == info[i].height)
1711 n = nn; /* we only consider unique geometries as separate screens */
1712 #endif /* XINERAMA */
1713 /* allocate monitor(s) for the new geometry setup */
1714 for(i = 0; i < n; i++) {
1715 if(!(m = (Monitor *)malloc(sizeof(Monitor))))
1716 die("fatal: could not malloc() %u bytes\n", sizeof(Monitor));
1720 /* initialise monitor(s) */
1722 if(XineramaIsActive(dpy)) {
1723 for(i = 0, m = newmons; m; m = m->next, i++) {
1724 m->num = info[i].screen_number;
1725 m->mx = m->wx = info[i].x_org;
1726 m->my = m->wy = info[i].y_org;
1727 m->mw = m->ww = info[i].width;
1728 m->mh = m->wh = info[i].height;
1733 #endif /* XINERAMA */
1734 /* default monitor setup */
1742 /* bar geometry setup */
1743 for(m = newmons; m; m = m->next) {
1744 m->sel = m->stack = m->clients = NULL;
1747 m->tagset[0] = m->tagset[1] = 1;
1749 m->showbar = showbar;
1751 m->lt[0] = &layouts[0];
1752 m->lt[1] = &layouts[1 % LENGTH(layouts)];
1753 m->ltsymbol = layouts[0].symbol;
1756 /* reassign left over clients of disappeared monitors */
1757 for(tm = mons; tm; tm = tm->next)
1758 while(tm->clients) {
1760 tm->clients = c->next;
1766 /* select focused monitor */
1768 selmon = mons = newmons;
1769 selmon = wintomon(root);
1773 updatenumlockmask(void) {
1775 XModifierKeymap *modmap;
1778 modmap = XGetModifierMapping(dpy);
1779 for(i = 0; i < 8; i++)
1780 for(j = 0; j < modmap->max_keypermod; j++)
1781 if(modmap->modifiermap[i * modmap->max_keypermod + j]
1782 == XKeysymToKeycode(dpy, XK_Num_Lock))
1783 numlockmask = (1 << i);
1784 XFreeModifiermap(modmap);
1788 updatesizehints(Client *c) {
1792 if(!XGetWMNormalHints(dpy, c->win, &size, &msize))
1793 /* size is uninitialized, ensure that size.flags aren't used */
1795 if(size.flags & PBaseSize) {
1796 c->basew = size.base_width;
1797 c->baseh = size.base_height;
1799 else if(size.flags & PMinSize) {
1800 c->basew = size.min_width;
1801 c->baseh = size.min_height;
1804 c->basew = c->baseh = 0;
1805 if(size.flags & PResizeInc) {
1806 c->incw = size.width_inc;
1807 c->inch = size.height_inc;
1810 c->incw = c->inch = 0;
1811 if(size.flags & PMaxSize) {
1812 c->maxw = size.max_width;
1813 c->maxh = size.max_height;
1816 c->maxw = c->maxh = 0;
1817 if(size.flags & PMinSize) {
1818 c->minw = size.min_width;
1819 c->minh = size.min_height;
1821 else if(size.flags & PBaseSize) {
1822 c->minw = size.base_width;
1823 c->minh = size.base_height;
1826 c->minw = c->minh = 0;
1827 if(size.flags & PAspect) {
1828 c->mina = (float)size.min_aspect.y / size.min_aspect.x;
1829 c->maxa = (float)size.max_aspect.x / size.max_aspect.y;
1832 c->maxa = c->mina = 0.0;
1833 c->isfixed = (c->maxw && c->minw && c->maxh && c->minh
1834 && c->maxw == c->minw && c->maxh == c->minh);
1838 updatetitle(Client *c) {
1839 if(!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
1840 gettextprop(c->win, XA_WM_NAME, c->name, sizeof c->name);
1841 if(c->name[0] == '\0') /* hack to mark broken clients */
1842 strcpy(c->name, broken);
1846 updatestatus(void) {
1847 if(!gettextprop(root, XA_WM_NAME, stext, sizeof(stext)))
1848 strcpy(stext, "dwm-"VERSION);
1853 updatewmhints(Client *c) {
1856 if((wmh = XGetWMHints(dpy, c->win))) {
1857 if(c == selmon->sel && wmh->flags & XUrgencyHint) {
1858 wmh->flags &= ~XUrgencyHint;
1859 XSetWMHints(dpy, c->win, wmh);
1862 c->isurgent = (wmh->flags & XUrgencyHint) ? True : False;
1868 view(const Arg *arg) {
1869 if((arg->ui & TAGMASK) == selmon->tagset[selmon->seltags])
1871 selmon->seltags ^= 1; /* toggle sel tagset */
1872 if(arg->ui & TAGMASK)
1873 selmon->tagset[selmon->seltags] = arg->ui & TAGMASK;
1878 wintoclient(Window w) {
1882 for(m = mons; m; m = m->next)
1883 for(c = m->clients; c; c = c->next)
1890 wintomon(Window w) {
1895 if(w == root && getrootptr(&x, &y))
1896 return ptrtomon(x, y);
1897 for(m = mons; m; m = m->next)
1900 if((c = wintoclient(w)))
1905 /* There's no way to check accesses to destroyed windows, thus those cases are
1906 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
1907 * default error handler, which may call exit. */
1909 xerror(Display *dpy, XErrorEvent *ee) {
1910 if(ee->error_code == BadWindow
1911 || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
1912 || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
1913 || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
1914 || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
1915 || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
1916 || (ee->request_code == X_GrabButton && ee->error_code == BadAccess)
1917 || (ee->request_code == X_GrabKey && ee->error_code == BadAccess)
1918 || (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
1920 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
1921 ee->request_code, ee->error_code);
1922 return xerrorxlib(dpy, ee); /* may call exit */
1926 xerrordummy(Display *dpy, XErrorEvent *ee) {
1930 /* Startup Error handler to check if another window manager
1931 * is already running. */
1933 xerrorstart(Display *dpy, XErrorEvent *ee) {
1939 zoom(const Arg *arg) {
1940 Client *c = selmon->sel;
1942 if(!selmon->lt[selmon->sellt]->arrange
1943 || selmon->lt[selmon->sellt]->arrange == monocle
1944 || (selmon->sel && selmon->sel->isfloating))
1946 if(c == nexttiled(selmon->clients))
1947 if(!c || !(c = nexttiled(c->next)))
1956 main(int argc, char *argv[]) {
1957 if(argc == 2 && !strcmp("-v", argv[1]))
1958 die("dwm-"VERSION", © 2006-2009 dwm engineers, see LICENSE for details\n");
1960 die("usage: dwm [-v]\n");
1961 if(!setlocale(LC_CTYPE, "") || !XSupportsLocale())
1962 fputs("warning: no locale support\n", stderr);
1963 if(!(dpy = XOpenDisplay(NULL)))
1964 die("dwm: cannot open display\n");