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 * Calls to fetch an X event from the event queue are blocking. Due reading
10 * status text from standard input, a select()-driven main loop has been
11 * implemented which selects for reads on the X connection and STDIN_FILENO to
12 * handle all data smoothly. The event handlers of dwm are organized in an
13 * array which is accessed whenever a new event has been fetched. This allows
14 * event dispatching in O(1) time.
16 * Each child of the root window is called a client, except windows which have
17 * set the override_redirect flag. Clients are organized in a global
18 * doubly-linked client list, the focus history is remembered through a global
19 * stack list. Each client contains an array of Bools of the same size as the
20 * global tags array to indicate the tags of a client.
22 * Keys and tagging rules are organized as arrays and defined in config.h.
24 * To understand everything else, start reading main().
33 #include <sys/select.h>
34 #include <sys/types.h>
37 #include <X11/cursorfont.h>
38 #include <X11/keysym.h>
39 #include <X11/Xatom.h>
41 #include <X11/Xproto.h>
42 #include <X11/Xutil.h>
44 #include <X11/extensions/Xinerama.h>
48 #define BUTTONMASK (ButtonPressMask | ButtonReleaseMask)
49 #define CLEANMASK(mask) (mask & ~(numlockmask | LockMask))
50 #define LENGTH(x) (sizeof x / sizeof x[0])
52 #define MOUSEMASK (BUTTONMASK | PointerMotionMask)
56 enum { BarTop, BarBot, BarOff }; /* bar position */
57 enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
58 enum { ColBorder, ColFG, ColBG, ColLast }; /* color */
59 enum { NetSupported, NetWMName, NetLast }; /* EWMH atoms */
60 enum { WMProtocols, WMDelete, WMName, WMState, WMLast };/* default atoms */
63 typedef struct Client Client;
67 int basew, baseh, incw, inch, maxw, maxh, minw, minh;
68 int minax, maxax, minay, maxay;
70 unsigned int border, oldborder;
71 Bool isbanned, isfixed, isfloating;
82 unsigned long norm[ColLast];
83 unsigned long sel[ColLast];
93 } DC; /* draw context */
98 void (*func)(const char *arg);
104 void (*arrange)(void);
124 int sx, sy, sw, sh, wax, way, wah, waw;
132 /* function declarations */
133 void applyrules(Client *c);
135 void attach(Client *c);
136 void attachstack(Client *c);
138 void buttonpress(XEvent *e);
139 void checkotherwm(void);
141 void compileregs(void);
142 void configure(Client *c);
143 void configurenotify(XEvent *e);
144 void configurerequest(XEvent *e);
145 void destroynotify(XEvent *e);
146 void detach(Client *c);
147 void detachstack(Client *c);
149 void drawsquare(Monitor *, Bool filled, Bool empty, unsigned long col[ColLast]);
150 void drawtext(Monitor *, const char *text, unsigned long col[ColLast]);
151 void *emallocz(unsigned int size);
152 void enternotify(XEvent *e);
153 void eprint(const char *errstr, ...);
154 void expose(XEvent *e);
155 void floating(void); /* default floating layout */
156 void focus(Client *c);
157 void focusin(XEvent *e);
158 void focusnext(const char *arg);
159 void focusprev(const char *arg);
160 Client *getclient(Window w);
161 unsigned long getcolor(const char *colstr);
162 long getstate(Window w);
163 Bool gettextprop(Window w, Atom atom, char *text, unsigned int size);
164 void grabbuttons(Client *c, Bool focused);
166 unsigned int idxoftag(const char *tag);
167 void initfont(Monitor*, const char *fontstr);
168 Bool isoccupied(Monitor *m, unsigned int t);
169 Bool isprotodel(Client *c);
170 Bool isvisible(Client *c, Monitor *m);
171 void keypress(XEvent *e);
172 void killclient(const char *arg);
173 void leavenotify(XEvent *e);
174 void manage(Window w, XWindowAttributes *wa);
175 void mappingnotify(XEvent *e);
176 void maprequest(XEvent *e);
177 void maximize(const char *arg);
178 void movemouse(Client *c);
179 Client *nexttiled(Client *c, Monitor *m);
180 void propertynotify(XEvent *e);
181 void quit(const char *arg);
182 void reapply(const char *arg);
183 void resize(Client *c, int x, int y, int w, int h, Bool sizehints);
184 void resizemouse(Client *c);
188 void setclientstate(Client *c, long state);
189 void setlayout(const char *arg);
190 void setmwfact(const char *arg);
192 void spawn(const char *arg);
193 void tag(const char *arg);
194 unsigned int textnw(Monitor*, const char *text, unsigned int len);
195 unsigned int textw(Monitor*, const char *text);
197 void togglebar(const char *arg);
198 void togglefloating(const char *arg);
199 void toggletag(const char *arg);
200 void toggleview(const char *arg);
201 void unban(Client *c);
202 void unmanage(Client *c);
203 void unmapnotify(XEvent *e);
204 void updatebarpos(Monitor *s);
205 void updatesizehints(Client *c);
206 void updatetitle(Client *c);
207 void view(const char *arg);
208 void viewprevtag(const char *arg); /* views previous selected tags */
209 int xerror(Display *dpy, XErrorEvent *ee);
210 int xerrordummy(Display *dsply, XErrorEvent *ee);
211 int xerrorstart(Display *dsply, XErrorEvent *ee);
212 void zoom(const char *arg);
213 int monitorat(int, int);
214 void movetomonitor(const char *arg);
215 void selectmonitor(const char *arg);
221 //int screen, sx, sy, sw, sh, wax, way, waw, wah;
222 int (*xerrorxlib)(Display *, XErrorEvent *);
223 unsigned int bh, bpos;
224 unsigned int blw = 0;
225 unsigned int numlockmask = 0;
226 void (*handler[LASTEvent]) (XEvent *) = {
227 [ButtonPress] = buttonpress,
228 [ConfigureRequest] = configurerequest,
229 [ConfigureNotify] = configurenotify,
230 [DestroyNotify] = destroynotify,
231 [EnterNotify] = enternotify,
234 [KeyPress] = keypress,
235 [LeaveNotify] = leavenotify,
236 [MappingNotify] = mappingnotify,
237 [MapRequest] = maprequest,
238 [PropertyNotify] = propertynotify,
239 [UnmapNotify] = unmapnotify
241 Atom wmatom[WMLast], netatom[NetLast];
242 Bool domwfact = True;
244 Bool otherwm, readin;
246 //Bool selscreen = True;
247 Client *clients = NULL;
249 Client *stack = NULL;
250 Cursor cursor[CurLast];
254 //Layout *layout = NULL;
255 //Window barwin, root;
260 /* configuration, allows nested code to access above variables */
263 //Bool prevtags[LENGTH(tags)];
265 /* function implementations */
267 applyrules(Client *c) {
268 static char buf[512];
271 Bool matched_tag = False;
272 Bool matched_monitor = False;
273 XClassHint ch = { 0 };
276 XGetClassHint(dpy, c->win, &ch);
277 snprintf(buf, sizeof buf, "%s:%s:%s",
278 ch.res_class ? ch.res_class : "",
279 ch.res_name ? ch.res_name : "", c->name);
280 for(i = 0; i < LENGTH(rules); i++)
281 if(regs[i].propregex && !regexec(regs[i].propregex, buf, 1, &tmp, 0)) {
282 if (rules[i].monitor >= 0 && rules[i].monitor < mcount) {
283 matched_monitor = True;
284 c->monitor = rules[i].monitor;
287 c->isfloating = rules[i].isfloating;
288 for(j = 0; regs[i].tagregex && j < LENGTH(tags); j++) {
289 if(!regexec(regs[i].tagregex, tags[j], 1, &tmp, 0)) {
300 memcpy(c->tags, monitors[monitorat(-1, -1)].seltags, sizeof initags);
301 if (!matched_monitor)
302 c->monitor = monitorat(-1, -1);
309 for(c = clients; c; c = c->next)
310 if(isvisible(c, &monitors[c->monitor]))
315 monitors[selmonitor].layout->arrange();
329 attachstack(Client *c) {
338 XMoveWindow(dpy, c->win, c->x + 3 * monitors[c->monitor].sw, c->y);
343 buttonpress(XEvent *e) {
346 XButtonPressedEvent *ev = &e->xbutton;
348 Monitor s = monitors[monitorat(-1, -1)];
350 if(ev->window == s.barwin) {
352 for(i = 0; i < LENGTH(tags); i++) {
353 x += textw(&s, tags[i]);
355 if(ev->button == Button1) {
356 if(ev->state & MODKEY)
361 else if(ev->button == Button3) {
362 if(ev->state & MODKEY)
370 if((ev->x < x + blw) && ev->button == Button1)
373 else if((c = getclient(ev->window))) {
375 if(CLEANMASK(ev->state) != MODKEY)
377 if(ev->button == Button1) {
378 if((s.layout->arrange == floating) || c->isfloating)
381 togglefloating(NULL);
384 else if(ev->button == Button2) {
385 if((floating != s.layout->arrange) && c->isfloating)
386 togglefloating(NULL);
390 else if(ev->button == Button3 && !c->isfixed) {
391 if((floating == s.layout->arrange) || c->isfloating)
394 togglefloating(NULL);
403 XSetErrorHandler(xerrorstart);
405 /* this causes an error if some other window manager is running */
406 XSelectInput(dpy, root, SubstructureRedirectMask);
409 eprint("dwm: another window manager is already running\n");
411 XSetErrorHandler(NULL);
412 xerrorxlib = XSetErrorHandler(xerror);
424 for(i = 0; i < mcount; i++) {
425 Monitor *m = &monitors[i];
427 XFreeFontSet(dpy, m->dc.font.set);
429 XFreeFont(dpy, m->dc.font.xfont);
430 XUngrabKey(dpy, AnyKey, AnyModifier, root);
431 XFreePixmap(dpy, m->dc.drawable);
432 XFreeGC(dpy, m->dc.gc);
433 XDestroyWindow(dpy, m->barwin);
434 XFreeCursor(dpy, cursor[CurNormal]);
435 XFreeCursor(dpy, cursor[CurResize]);
436 XFreeCursor(dpy, cursor[CurMove]);
437 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
449 regs = emallocz(LENGTH(rules) * sizeof(Regs));
450 for(i = 0; i < LENGTH(rules); i++) {
452 reg = emallocz(sizeof(regex_t));
453 if(regcomp(reg, rules[i].prop, REG_EXTENDED))
456 regs[i].propregex = reg;
459 reg = emallocz(sizeof(regex_t));
460 if(regcomp(reg, rules[i].tags, REG_EXTENDED))
463 regs[i].tagregex = reg;
469 configure(Client *c) {
472 ce.type = ConfigureNotify;
480 ce.border_width = c->border;
482 ce.override_redirect = False;
483 XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce);
487 configurenotify(XEvent *e) {
488 XConfigureEvent *ev = &e->xconfigure;
489 Monitor *m = &monitors[selmonitor];
491 if(ev->window == root && (ev->width != m->sw || ev->height != m->sh)) {
494 XFreePixmap(dpy, dc.drawable);
495 dc.drawable = XCreatePixmap(dpy, root, m->sw, bh, DefaultDepth(dpy, screen));
496 XResizeWindow(dpy, m->barwin, m->sw, bh);
503 configurerequest(XEvent *e) {
505 XConfigureRequestEvent *ev = &e->xconfigurerequest;
508 if((c = getclient(ev->window))) {
509 Monitor *m = &monitors[c->monitor];
510 if(ev->value_mask & CWBorderWidth)
511 c->border = ev->border_width;
512 if(c->isfixed || c->isfloating || (floating == m->layout->arrange)) {
513 if(ev->value_mask & CWX)
515 if(ev->value_mask & CWY)
517 if(ev->value_mask & CWWidth)
519 if(ev->value_mask & CWHeight)
521 if((c->x - m->sx + c->w) > m->sw && c->isfloating)
522 c->x = m->sx + (m->sw / 2 - c->w / 2); /* center in x direction */
523 if((c->y - m->sy + c->h) > m->sh && c->isfloating)
524 c->y = m->sy + (m->sh / 2 - c->h / 2); /* center in y direction */
525 if((ev->value_mask & (CWX | CWY))
526 && !(ev->value_mask & (CWWidth | CWHeight)))
528 if(isvisible(c, &monitors[monitorat(-1,-1)]))
529 XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
537 wc.width = ev->width;
538 wc.height = ev->height;
539 wc.border_width = ev->border_width;
540 wc.sibling = ev->above;
541 wc.stack_mode = ev->detail;
542 XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
548 destroynotify(XEvent *e) {
550 XDestroyWindowEvent *ev = &e->xdestroywindow;
552 if((c = getclient(ev->window)))
559 c->prev->next = c->next;
561 c->next->prev = c->prev;
564 c->next = c->prev = NULL;
568 detachstack(Client *c) {
571 for(tc=&stack; *tc && *tc != c; tc=&(*tc)->snext);
579 for(s = 0; s < mcount; ++s) {
580 Monitor *m = &monitors[s];
582 for(i = 0; i < LENGTH(tags); i++) {
583 m->dc.w = textw(m, tags[i]);
585 drawtext(m, tags[i], m->dc.sel);
586 drawsquare(m, sel && sel->tags[i] && sel->monitor == m->id, isoccupied(m, i), m->dc.sel);
589 drawtext(m, tags[i], m->dc.norm);
590 drawsquare(m, sel && sel->tags[i] && sel->monitor == m->id, isoccupied(m, i), m->dc.norm);
595 drawtext(m, m->layout->symbol, m->dc.norm);
596 x = m->dc.x + m->dc.w;
597 m->dc.w = textw(m, stext);
598 m->dc.x = m->sw - m->dc.w;
603 drawtext(m, stext, m->dc.norm);
604 if((m->dc.w = m->dc.x - x) > bh) {
606 if(sel && sel->monitor == m->id) {
607 drawtext(m, sel->name, m->dc.sel);
608 drawsquare(m, False, sel->isfloating, m->dc.sel);
611 drawtext(m, NULL, m->dc.norm);
613 XCopyArea(dpy, m->dc.drawable, m->barwin, m->dc.gc, 0, 0, m->sw, bh, 0, 0);
619 drawsquare(Monitor *m, Bool filled, Bool empty, unsigned long col[ColLast]) {
622 XRectangle r = { m->dc.x, m->dc.y, m->dc.w, m->dc.h };
624 gcv.foreground = col[ColFG];
625 XChangeGC(dpy, m->dc.gc, GCForeground, &gcv);
626 x = (m->dc.font.ascent + m->dc.font.descent + 2) / 4;
630 r.width = r.height = x + 1;
631 XFillRectangles(dpy, m->dc.drawable, m->dc.gc, &r, 1);
634 r.width = r.height = x;
635 XDrawRectangles(dpy, m->dc.drawable, m->dc.gc, &r, 1);
640 drawtext(Monitor *m, const char *text, unsigned long col[ColLast]) {
642 static char buf[256];
643 unsigned int len, olen;
644 XRectangle r = { m->dc.x, m->dc.y, m->dc.w, m->dc.h };
646 XSetForeground(dpy, m->dc.gc, col[ColBG]);
647 XFillRectangles(dpy, m->dc.drawable, m->dc.gc, &r, 1);
651 olen = len = strlen(text);
652 if(len >= sizeof buf)
653 len = sizeof buf - 1;
654 memcpy(buf, text, len);
656 h = m->dc.font.ascent + m->dc.font.descent;
657 y = m->dc.y + (m->dc.h / 2) - (h / 2) + m->dc.font.ascent;
658 x = m->dc.x + (h / 2);
659 /* shorten text if necessary */
660 while(len && (w = textnw(m, buf, len)) > m->dc.w - h)
671 return; /* too long */
672 XSetForeground(dpy, m->dc.gc, col[ColFG]);
674 XmbDrawString(dpy, m->dc.drawable, m->dc.font.set, m->dc.gc, x, y, buf, len);
676 XDrawString(dpy, m->dc.drawable, m->dc.gc, x, y, buf, len);
680 emallocz(unsigned int size) {
681 void *res = calloc(1, size);
684 eprint("fatal: could not malloc() %u bytes\n", size);
689 enternotify(XEvent *e) {
691 XCrossingEvent *ev = &e->xcrossing;
693 if(ev->mode != NotifyNormal || ev->detail == NotifyInferior)
695 if((c = getclient(ev->window)))
697 else if(ev->window == root) {
704 eprint(const char *errstr, ...) {
707 va_start(ap, errstr);
708 vfprintf(stderr, errstr, ap);
715 XExposeEvent *ev = &e->xexpose;
718 if(ev->window == monitors[selmonitor].barwin)
724 floating(void) { /* default floating layout */
727 domwfact = dozoom = False;
728 for(c = clients; c; c = c->next)
729 if(isvisible(c, &monitors[selmonitor]))
730 resize(c, c->x, c->y, c->w, c->h, True);
735 Monitor *m = &monitors[monitorat(-1, -1)];
736 if(!c || (c && !isvisible(c, m)))
737 for(c = stack; c && !isvisible(c, m); c = c->snext);
738 if(sel && sel != c) {
739 grabbuttons(sel, False);
740 XSetWindowBorder(dpy, sel->win, monitors[sel->monitor].dc.norm[ColBorder]);
745 grabbuttons(c, True);
750 XSetWindowBorder(dpy, c->win, monitors[c->monitor].dc.sel[ColBorder]);
751 XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
752 selmonitor = monitorat(c->x, c->y);
755 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
756 selmonitor = monitorat(-1, -1);
761 focusin(XEvent *e) { /* there are some broken focus acquiring clients */
762 XFocusChangeEvent *ev = &e->xfocus;
764 if(sel && ev->window != sel->win)
765 XSetInputFocus(dpy, sel->win, RevertToPointerRoot, CurrentTime);
769 focusnext(const char *arg) {
771 Monitor *m = &monitors[selmonitor];
775 for(c = sel->next; c && !isvisible(c, m); c = c->next);
777 for(c = clients; c && !isvisible(c, m); c = c->next);
785 focusprev(const char *arg) {
787 Monitor *m = &monitors[selmonitor];
791 for(c = sel->prev; c && !isvisible(c, m); c = c->prev);
793 for(c = clients; c && c->next; c = c->next);
794 for(; c && !isvisible(c, m); c = c->prev);
803 getclient(Window w) {
806 for(c = clients; c && c->win != w; c = c->next);
811 getcolor(const char *colstr) {
812 Colormap cmap = DefaultColormap(dpy, screen);
815 if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
816 eprint("error, cannot allocate color '%s'\n", colstr);
824 unsigned char *p = NULL;
825 unsigned long n, extra;
828 status = XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState],
829 &real, &format, &n, &extra, (unsigned char **)&p);
830 if(status != Success)
839 gettextprop(Window w, Atom atom, char *text, unsigned int size) {
844 if(!text || size == 0)
847 XGetTextProperty(dpy, w, &name, atom);
850 if(name.encoding == XA_STRING)
851 strncpy(text, (char *)name.value, size - 1);
853 if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success
855 strncpy(text, *list, size - 1);
856 XFreeStringList(list);
859 text[size - 1] = '\0';
865 grabbuttons(Client *c, Bool focused) {
866 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
869 XGrabButton(dpy, Button1, MODKEY, c->win, False, BUTTONMASK,
870 GrabModeAsync, GrabModeSync, None, None);
871 XGrabButton(dpy, Button1, MODKEY | LockMask, c->win, False, BUTTONMASK,
872 GrabModeAsync, GrabModeSync, None, None);
873 XGrabButton(dpy, Button1, MODKEY | numlockmask, c->win, False, BUTTONMASK,
874 GrabModeAsync, GrabModeSync, None, None);
875 XGrabButton(dpy, Button1, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK,
876 GrabModeAsync, GrabModeSync, None, None);
878 XGrabButton(dpy, Button2, MODKEY, c->win, False, BUTTONMASK,
879 GrabModeAsync, GrabModeSync, None, None);
880 XGrabButton(dpy, Button2, MODKEY | LockMask, c->win, False, BUTTONMASK,
881 GrabModeAsync, GrabModeSync, None, None);
882 XGrabButton(dpy, Button2, MODKEY | numlockmask, c->win, False, BUTTONMASK,
883 GrabModeAsync, GrabModeSync, None, None);
884 XGrabButton(dpy, Button2, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK,
885 GrabModeAsync, GrabModeSync, None, None);
887 XGrabButton(dpy, Button3, MODKEY, c->win, False, BUTTONMASK,
888 GrabModeAsync, GrabModeSync, None, None);
889 XGrabButton(dpy, Button3, MODKEY | LockMask, c->win, False, BUTTONMASK,
890 GrabModeAsync, GrabModeSync, None, None);
891 XGrabButton(dpy, Button3, MODKEY | numlockmask, c->win, False, BUTTONMASK,
892 GrabModeAsync, GrabModeSync, None, None);
893 XGrabButton(dpy, Button3, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK,
894 GrabModeAsync, GrabModeSync, None, None);
897 XGrabButton(dpy, AnyButton, AnyModifier, c->win, False, BUTTONMASK,
898 GrabModeAsync, GrabModeSync, None, None);
906 XUngrabKey(dpy, AnyKey, AnyModifier, root);
907 for(i = 0; i < LENGTH(keys); i++) {
908 code = XKeysymToKeycode(dpy, keys[i].keysym);
909 XGrabKey(dpy, code, keys[i].mod, root, True,
910 GrabModeAsync, GrabModeAsync);
911 XGrabKey(dpy, code, keys[i].mod | LockMask, root, True,
912 GrabModeAsync, GrabModeAsync);
913 XGrabKey(dpy, code, keys[i].mod | numlockmask, root, True,
914 GrabModeAsync, GrabModeAsync);
915 XGrabKey(dpy, code, keys[i].mod | numlockmask | LockMask, root, True,
916 GrabModeAsync, GrabModeAsync);
921 idxoftag(const char *tag) {
924 for(i = 0; (i < LENGTH(tags)) && (tags[i] != tag); i++);
925 return (i < LENGTH(tags)) ? i : 0;
929 initfont(Monitor *m, const char *fontstr) {
930 char *def, **missing;
935 XFreeFontSet(dpy, m->dc.font.set);
936 m->dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
939 fprintf(stderr, "dwm: missing fontset: %s\n", missing[n]);
940 XFreeStringList(missing);
943 XFontSetExtents *font_extents;
944 XFontStruct **xfonts;
946 m->dc.font.ascent = m->dc.font.descent = 0;
947 font_extents = XExtentsOfFontSet(m->dc.font.set);
948 n = XFontsOfFontSet(m->dc.font.set, &xfonts, &font_names);
949 for(i = 0, m->dc.font.ascent = 0, m->dc.font.descent = 0; i < n; i++) {
950 if(m->dc.font.ascent < (*xfonts)->ascent)
951 m->dc.font.ascent = (*xfonts)->ascent;
952 if(m->dc.font.descent < (*xfonts)->descent)
953 m->dc.font.descent = (*xfonts)->descent;
959 XFreeFont(dpy, m->dc.font.xfont);
960 m->dc.font.xfont = NULL;
961 if(!(m->dc.font.xfont = XLoadQueryFont(dpy, fontstr))
962 && !(m->dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
963 eprint("error, cannot load font: '%s'\n", fontstr);
964 m->dc.font.ascent = m->dc.font.xfont->ascent;
965 m->dc.font.descent = m->dc.font.xfont->descent;
967 m->dc.font.height = m->dc.font.ascent + m->dc.font.descent;
971 isoccupied(Monitor *m, unsigned int t) {
974 for(c = clients; c; c = c->next)
975 if(c->tags[t] && c->monitor == m->id)
981 isprotodel(Client *c) {
986 if(XGetWMProtocols(dpy, c->win, &protocols, &n)) {
987 for(i = 0; !ret && i < n; i++)
988 if(protocols[i] == wmatom[WMDelete])
996 isvisible(Client *c, Monitor *m) {
999 for(i = 0; i < LENGTH(tags); i++)
1000 if(c->tags[i] && monitors[c->monitor].seltags[i] && m->id == c->monitor)
1006 keypress(XEvent *e) {
1012 keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
1013 for(i = 0; i < LENGTH(keys); i++)
1014 if(keysym == keys[i].keysym
1015 && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state))
1018 keys[i].func(keys[i].arg);
1023 killclient(const char *arg) {
1028 if(isprotodel(sel)) {
1029 ev.type = ClientMessage;
1030 ev.xclient.window = 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, sel->win, False, NoEventMask, &ev);
1038 XKillClient(dpy, sel->win);
1042 leavenotify(XEvent *e) {
1043 XCrossingEvent *ev = &e->xcrossing;
1045 if((ev->window == root) && !ev->same_screen) {
1052 manage(Window w, XWindowAttributes *wa) {
1053 Client *c, *t = NULL;
1058 c = emallocz(sizeof(Client));
1059 c->tags = emallocz(sizeof initags);
1063 Monitor *m = &monitors[c->monitor];
1069 c->oldborder = wa->border_width;
1071 if (monitorat(c->x, c->y) != c->monitor) {
1076 if(c->w == m->sw && c->h == m->sh) {
1079 c->border = wa->border_width;
1082 if(c->x + c->w + 2 * c->border > m->wax + m->waw)
1083 c->x = m->wax + m->waw - c->w - 2 * c->border;
1084 if(c->y + c->h + 2 * c->border > m->way + m->wah)
1085 c->y = m->way + m->wah - c->h - 2 * c->border;
1090 c->border = BORDERPX;
1092 wc.border_width = c->border;
1093 XConfigureWindow(dpy, w, CWBorderWidth, &wc);
1094 XSetWindowBorder(dpy, w, m->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 if((rettrans = XGetTransientForHint(dpy, w, &trans) == Success))
1101 for(t = clients; t && t->win != trans; t = t->next);
1103 memcpy(c->tags, t->tags, sizeof initags);
1105 c->isfloating = (rettrans == Success) || c->isfixed;
1108 XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h); /* some windows require this */
1110 XMapWindow(dpy, c->win);
1111 setclientstate(c, NormalState);
1116 mappingnotify(XEvent *e) {
1117 XMappingEvent *ev = &e->xmapping;
1119 XRefreshKeyboardMapping(ev);
1120 if(ev->request == MappingKeyboard)
1125 maprequest(XEvent *e) {
1126 static XWindowAttributes wa;
1127 XMapRequestEvent *ev = &e->xmaprequest;
1129 if(!XGetWindowAttributes(dpy, ev->window, &wa))
1131 if(wa.override_redirect)
1133 if(!getclient(ev->window))
1134 manage(ev->window, &wa);
1138 maximize(const char *arg) {
1140 if(!sel || (!sel->isfloating && layout->arrange != floating))
1142 resize(sel, wax, way, waw - 2 * sel->border, wah - 2 * sel->border, True);
1147 movemouse(Client *c) {
1148 int x1, y1, ocx, ocy, di, nx, ny;
1155 if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
1156 None, cursor[CurMove], CurrentTime) != GrabSuccess)
1158 XQueryPointer(dpy, root, &dummy, &dummy, &x1, &y1, &di, &di, &dui);
1160 XMaskEvent(dpy, MOUSEMASK | ExposureMask | SubstructureRedirectMask, &ev);
1163 XUngrabPointer(dpy, CurrentTime);
1165 case ConfigureRequest:
1168 handler[ev.type](&ev);
1172 nx = ocx + (ev.xmotion.x - x1);
1173 ny = ocy + (ev.xmotion.y - y1);
1174 Monitor *m = &monitors[monitorat(nx, ny)];
1175 if(abs(m->wax - nx) < SNAP)
1177 else if(abs((m->wax + m->waw) - (nx + c->w + 2 * c->border)) < SNAP)
1178 nx = m->wax + m->waw - c->w - 2 * c->border;
1179 if(abs(m->way - ny) < SNAP)
1181 else if(abs((m->way + m->wah) - (ny + c->h + 2 * c->border)) < SNAP)
1182 ny = m->way + m->wah - c->h - 2 * c->border;
1183 resize(c, nx, ny, c->w, c->h, False);
1184 memcpy(c->tags, monitors[monitorat(nx, ny)].seltags, sizeof initags);
1191 nexttiled(Client *c, Monitor *m) {
1192 for(; c && (c->isfloating || !isvisible(c, m)); c = c->next);
1197 propertynotify(XEvent *e) {
1200 XPropertyEvent *ev = &e->xproperty;
1202 if(ev->state == PropertyDelete)
1203 return; /* ignore */
1204 if((c = getclient(ev->window))) {
1207 case XA_WM_TRANSIENT_FOR:
1208 XGetTransientForHint(dpy, c->win, &trans);
1209 if(!c->isfloating && (c->isfloating = (getclient(trans) != NULL)))
1212 case XA_WM_NORMAL_HINTS:
1216 if(ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
1225 quit(const char *arg) {
1226 readin = running = False;
1230 reapply(const char *arg) {
1231 static Bool zerotags[LENGTH(tags)] = { 0 };
1234 for(c = clients; c; c = c->next) {
1235 memcpy(c->tags, zerotags, sizeof zerotags);
1242 resize(Client *c, int x, int y, int w, int h, Bool sizehints) {
1244 Monitor scr = monitors[monitorat(x, y)];
1245 c->monitor = scr.id;
1248 /* set minimum possible */
1254 /* temporarily remove base dimensions */
1258 /* adjust for aspect limits */
1259 if (c->minay > 0 && c->maxay > 0 && c->minax > 0 && c->maxax > 0) {
1260 if (w * c->maxay > h * c->maxax)
1261 w = h * c->maxax / c->maxay;
1262 else if (w * c->minay < h * c->minax)
1263 h = w * c->minay / c->minax;
1266 /* adjust for increment value */
1272 /* restore base dimensions */
1276 if(c->minw > 0 && w < c->minw)
1278 if(c->minh > 0 && h < c->minh)
1280 if(c->maxw > 0 && w > c->maxw)
1282 if(c->maxh > 0 && h > c->maxh)
1285 if(w <= 0 || h <= 0)
1287 /* TODO: offscreen appearance fixes */
1290 x = scr.sw - w - 2 * c->border;
1292 y = scr.sh - h - 2 * c->border;
1293 if(x + w + 2 * c->border < scr.sx)
1295 if(y + h + 2 * c->border < scr.sy)
1298 if(c->x != x || c->y != y || c->w != w || c->h != h) {
1301 c->w = wc.width = w;
1302 c->h = wc.height = h;
1303 wc.border_width = c->border;
1304 XConfigureWindow(dpy, c->win, CWX | CWY | CWWidth | CWHeight | CWBorderWidth, &wc);
1311 resizemouse(Client *c) {
1318 if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
1319 None, cursor[CurResize], CurrentTime) != GrabSuccess)
1321 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->border - 1, c->h + c->border - 1);
1323 XMaskEvent(dpy, MOUSEMASK | ExposureMask | SubstructureRedirectMask , &ev);
1326 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0,
1327 c->w + c->border - 1, c->h + c->border - 1);
1328 XUngrabPointer(dpy, CurrentTime);
1329 while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
1331 case ConfigureRequest:
1334 handler[ev.type](&ev);
1338 if((nw = ev.xmotion.x - ocx - 2 * c->border + 1) <= 0)
1340 if((nh = ev.xmotion.y - ocy - 2 * c->border + 1) <= 0)
1342 resize(c, c->x, c->y, nw, nh, True);
1358 if(sel->isfloating || (monitors[selmonitor].layout->arrange == floating))
1359 XRaiseWindow(dpy, sel->win);
1360 if(monitors[selmonitor].layout->arrange != floating) {
1361 wc.stack_mode = Below;
1362 wc.sibling = monitors[selmonitor].barwin;
1363 if(!sel->isfloating) {
1364 XConfigureWindow(dpy, sel->win, CWSibling | CWStackMode, &wc);
1365 wc.sibling = sel->win;
1367 for(s = 0; s < mcount; s++) {
1368 for(c = nexttiled(clients, &monitors[s]); c; c = nexttiled(c->next, &monitors[s])) {
1371 XConfigureWindow(dpy, c->win, CWSibling | CWStackMode, &wc);
1372 wc.sibling = c->win;
1377 while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
1383 char buf[sizeof stext];
1386 unsigned int len, offset;
1389 /* main event loop, also reads status text from stdin */
1391 xfd = ConnectionNumber(dpy);
1394 len = sizeof stext - 1;
1395 buf[len] = stext[len] = '\0'; /* 0-terminator is never touched */
1399 FD_SET(STDIN_FILENO, &rd);
1401 if(select(xfd + 1, &rd, NULL, NULL, NULL) == -1) {
1404 eprint("select failed\n");
1406 if(FD_ISSET(STDIN_FILENO, &rd)) {
1407 switch((r = read(STDIN_FILENO, buf + offset, len - offset))) {
1409 strncpy(stext, strerror(errno), len);
1413 strncpy(stext, "EOF", 4);
1417 for(p = buf + offset; r > 0; p++, r--, offset++)
1418 if(*p == '\n' || *p == '\0') {
1420 strncpy(stext, buf, len);
1421 p += r - 1; /* p is buf + offset + r - 1 */
1422 for(r = 0; *(p - r) && *(p - r) != '\n'; r++);
1425 memmove(buf, p - r + 1, r);
1432 while(XPending(dpy)) {
1433 XNextEvent(dpy, &ev);
1434 if(handler[ev.type])
1435 (handler[ev.type])(&ev); /* call handler */
1442 unsigned int i, num;
1443 Window *wins, d1, d2;
1444 XWindowAttributes wa;
1447 if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
1448 for(i = 0; i < num; i++) {
1449 if(!XGetWindowAttributes(dpy, wins[i], &wa)
1450 || wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
1452 if(wa.map_state == IsViewable || getstate(wins[i]) == IconicState)
1453 manage(wins[i], &wa);
1455 for(i = 0; i < num; i++) { /* now the transients */
1456 if(!XGetWindowAttributes(dpy, wins[i], &wa))
1458 if(XGetTransientForHint(dpy, wins[i], &d1)
1459 && (wa.map_state == IsViewable || getstate(wins[i]) == IconicState))
1460 manage(wins[i], &wa);
1468 setclientstate(Client *c, long state) {
1469 long data[] = {state, None};
1471 XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,
1472 PropModeReplace, (unsigned char *)data, 2);
1476 setlayout(const char *arg) {
1478 Monitor *m = &monitors[monitorat(-1, -1)];
1482 if(m->layout == &layouts[LENGTH(layouts)])
1483 m->layout = &layouts[0];
1486 for(i = 0; i < LENGTH(layouts); i++)
1487 if(!strcmp(arg, layouts[i].symbol))
1489 if(i == LENGTH(layouts))
1491 m->layout = &layouts[i];
1500 setmwfact(const char *arg) {
1503 Monitor *m = &monitors[monitorat(-1, -1)];
1507 /* arg handling, manipulate mwfact */
1510 else if(sscanf(arg, "%lf", &delta) == 1) {
1511 if(arg[0] == '+' || arg[0] == '-')
1517 else if(m->mwfact > 0.9)
1525 unsigned int i, j, k;
1526 XModifierKeymap *modmap;
1527 XSetWindowAttributes wa;
1530 XineramaScreenInfo *info = NULL;
1533 wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
1534 wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
1535 wmatom[WMName] = XInternAtom(dpy, "WM_NAME", False);
1536 wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);
1537 netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
1538 netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
1539 XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
1540 PropModeReplace, (unsigned char *) netatom, NetLast);
1543 cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
1544 cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
1545 cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
1548 /* init modifier map */
1549 modmap = XGetModifierMapping(dpy);
1550 for(i = 0; i < 8; i++)
1551 for(j = 0; j < modmap->max_keypermod; j++) {
1552 if(modmap->modifiermap[i * modmap->max_keypermod + j]
1553 == XKeysymToKeycode(dpy, XK_Num_Lock))
1554 numlockmask = (1 << i);
1556 XFreeModifiermap(modmap);
1558 /* select for events */
1559 wa.event_mask = SubstructureRedirectMask | SubstructureNotifyMask
1560 | EnterWindowMask | LeaveWindowMask | StructureNotifyMask;
1561 wa.cursor = cursor[CurNormal];
1562 XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
1563 XSelectInput(dpy, root, wa.event_mask);
1571 if (XineramaIsActive(dpy)) {
1572 info = XineramaQueryScreens(dpy, &s);
1575 monitors = emallocz(s*sizeof(Monitor));
1578 for(i = 0; i < s; i++) {
1581 monitors[i].sx = info[i].x_org;
1582 monitors[i].sy = info[i].y_org;
1583 monitors[i].sw = info[i].width;
1584 monitors[i].sh = info[i].height;
1589 monitors[i].sw = DisplayWidth(dpy, screen);
1590 monitors[i].sh = DisplayHeight(dpy, screen);
1594 monitors[i].seltags = emallocz(sizeof initags);
1595 monitors[i].prevtags = emallocz(sizeof initags);
1597 memcpy(monitors[i].seltags, initags, sizeof initags);
1598 memcpy(monitors[i].prevtags, initags, sizeof initags);
1600 /* init appearance */
1601 monitors[i].dc.norm[ColBorder] = getcolor(NORMBORDERCOLOR);
1602 monitors[i].dc.norm[ColBG] = getcolor(NORMBGCOLOR);
1603 monitors[i].dc.norm[ColFG] = getcolor(NORMFGCOLOR);
1604 monitors[i].dc.sel[ColBorder] = getcolor(SELBORDERCOLOR);
1605 monitors[i].dc.sel[ColBG] = getcolor(SELBGCOLOR);
1606 monitors[i].dc.sel[ColFG] = getcolor(SELFGCOLOR);
1607 initfont(&(monitors[i]), FONT);
1608 monitors[i].dc.h = bh = monitors[i].dc.font.height + 2;
1611 monitors[i].mwfact = MWFACT;
1612 monitors[i].layout = &layouts[0];
1613 for(blw = k = 0; k < LENGTH(layouts); k++) {
1614 j = textw(&monitors[i], layouts[k].symbol);
1620 wa.override_redirect = 1;
1621 wa.background_pixmap = ParentRelative;
1622 wa.event_mask = ButtonPressMask | ExposureMask;
1625 monitors[i].barwin = XCreateWindow(dpy, root, monitors[i].sx, monitors[i].sy, monitors[i].sw, bh, 0,
1626 DefaultDepth(dpy, screen), CopyFromParent, DefaultVisual(dpy, screen),
1627 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
1628 XDefineCursor(dpy, monitors[i].barwin, cursor[CurNormal]);
1629 updatebarpos(&monitors[i]);
1630 XMapRaised(dpy, monitors[i].barwin);
1631 strcpy(stext, "dwm-"VERSION);
1632 monitors[i].dc.drawable = XCreatePixmap(dpy, root, monitors[i].sw, bh, DefaultDepth(dpy, screen));
1633 g = XCreateGC(dpy, root, 0, 0);
1634 monitors[i].dc.gc = XCreateGC(dpy, root, 0, 0);
1635 XSetLineAttributes(dpy, monitors[i].dc.gc, 1, LineSolid, CapButt, JoinMiter);
1636 if(!monitors[i].dc.font.set)
1637 XSetFont(dpy, monitors[i].dc.gc, monitors[i].dc.font.xfont->fid);
1642 spawn(const char *arg) {
1643 static char *shell = NULL;
1645 if(!shell && !(shell = getenv("SHELL")))
1649 /* The double-fork construct avoids zombie processes and keeps the code
1650 * clean from stupid signal handlers. */
1654 close(ConnectionNumber(dpy));
1656 execl(shell, shell, "-c", arg, (char *)NULL);
1657 fprintf(stderr, "dwm: execl '%s -c %s'", shell, arg);
1666 tag(const char *arg) {
1671 for(i = 0; i < LENGTH(tags); i++)
1672 sel->tags[i] = (NULL == arg);
1673 sel->tags[idxoftag(arg)] = True;
1678 textnw(Monitor *m, const char *text, unsigned int len) {
1681 if(m->dc.font.set) {
1682 XmbTextExtents(m->dc.font.set, text, len, NULL, &r);
1685 return XTextWidth(m->dc.font.xfont, text, len);
1689 textw(Monitor *m, const char *text) {
1690 return textnw(m, text, strlen(text)) + m->dc.font.height;
1695 unsigned int i, n, nx, ny, nw, nh, mw, th;
1699 domwfact = dozoom = True;
1701 nw = 0; /* gcc stupidity requires this */
1703 for (s = 0; s < mcount; s++) {
1704 Monitor *m = &monitors[s];
1706 for(n = 0, c = nexttiled(clients, m); c; c = nexttiled(c->next, m))
1709 for(i = 0, c = mc = nexttiled(clients, m); c; c = nexttiled(c->next, m)) {
1711 mw = (n == 1) ? m->waw : m->mwfact * m->waw;
1712 th = (n > 1) ? m->wah / (n - 1) : 0;
1713 if(n > 1 && th < bh)
1715 if(i == 0) { /* master */
1718 nw = mw - 2 * c->border;
1719 nh = m->wah - 2 * c->border;
1721 else { /* tile window */
1724 nx += mc->w + 2 * mc->border;
1725 nw = m->waw - mw - 2 * c->border;
1727 if(i + 1 == n) /* remainder */
1728 nh = (m->way + m->wah) - ny - 2 * c->border;
1730 nh = th - 2 * c->border;
1732 resize(c, nx, ny, nw, nh, RESIZEHINTS);
1733 if((RESIZEHINTS) && ((c->h < bh) || (c->h > nh) || (c->w < bh) || (c->w > nw)))
1734 /* client doesn't accept size constraints */
1735 resize(c, nx, ny, nw, nh, False);
1736 if(n > 1 && th != m->wah)
1737 ny = c->y + c->h + 2 * c->border;
1744 togglebar(const char *arg) {
1746 bpos = (BARPOS == BarOff) ? BarTop : BARPOS;
1749 updatebarpos(&monitors[monitorat(-1,-1)]);
1754 togglefloating(const char *arg) {
1757 sel->isfloating = !sel->isfloating;
1759 resize(sel, sel->x, sel->y, sel->w, sel->h, True);
1764 toggletag(const char *arg) {
1770 sel->tags[i] = !sel->tags[i];
1771 for(j = 0; j < LENGTH(tags) && !sel->tags[j]; j++);
1772 if(j == LENGTH(tags))
1773 sel->tags[i] = True; /* at least one tag must be enabled */
1778 toggleview(const char *arg) {
1781 Monitor *m = &monitors[monitorat(-1, -1)];
1784 m->seltags[i] = !m->seltags[i];
1785 for(j = 0; j < LENGTH(tags) && !m->seltags[j]; j++);
1786 if(j == LENGTH(tags))
1787 m->seltags[i] = True; /* at least one tag must be viewed */
1795 XMoveWindow(dpy, c->win, c->x, c->y);
1796 c->isbanned = False;
1800 unmanage(Client *c) {
1803 wc.border_width = c->oldborder;
1804 /* The server grab construct avoids race conditions. */
1806 XSetErrorHandler(xerrordummy);
1807 XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */
1812 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
1813 setclientstate(c, WithdrawnState);
1817 XSetErrorHandler(xerror);
1823 unmapnotify(XEvent *e) {
1825 XUnmapEvent *ev = &e->xunmap;
1827 if((c = getclient(ev->window)))
1832 updatebarpos(Monitor *s) {
1843 XMoveWindow(dpy, s->barwin, s->sx, s->sy);
1847 XMoveWindow(dpy, s->barwin, s->sx, s->sy + s->wah);
1850 XMoveWindow(dpy, s->barwin, s->sx, s->sy - bh);
1854 while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
1858 updatesizehints(Client *c) {
1862 if(!XGetWMNormalHints(dpy, c->win, &size, &msize) || !size.flags)
1864 c->flags = size.flags;
1865 if(c->flags & PBaseSize) {
1866 c->basew = size.base_width;
1867 c->baseh = size.base_height;
1869 else if(c->flags & PMinSize) {
1870 c->basew = size.min_width;
1871 c->baseh = size.min_height;
1874 c->basew = c->baseh = 0;
1875 if(c->flags & PResizeInc) {
1876 c->incw = size.width_inc;
1877 c->inch = size.height_inc;
1880 c->incw = c->inch = 0;
1881 if(c->flags & PMaxSize) {
1882 c->maxw = size.max_width;
1883 c->maxh = size.max_height;
1886 c->maxw = c->maxh = 0;
1887 if(c->flags & PMinSize) {
1888 c->minw = size.min_width;
1889 c->minh = size.min_height;
1891 else if(c->flags & PBaseSize) {
1892 c->minw = size.base_width;
1893 c->minh = size.base_height;
1896 c->minw = c->minh = 0;
1897 if(c->flags & PAspect) {
1898 c->minax = size.min_aspect.x;
1899 c->maxax = size.max_aspect.x;
1900 c->minay = size.min_aspect.y;
1901 c->maxay = size.max_aspect.y;
1904 c->minax = c->maxax = c->minay = c->maxay = 0;
1905 c->isfixed = (c->maxw && c->minw && c->maxh && c->minh
1906 && c->maxw == c->minw && c->maxh == c->minh);
1910 updatetitle(Client *c) {
1911 if(!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
1912 gettextprop(c->win, wmatom[WMName], c->name, sizeof c->name);
1915 /* There's no way to check accesses to destroyed windows, thus those cases are
1916 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
1917 * default error handler, which may call exit. */
1919 xerror(Display *dpy, XErrorEvent *ee) {
1920 if(ee->error_code == BadWindow
1921 || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
1922 || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
1923 || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
1924 || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
1925 || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
1926 || (ee->request_code == X_GrabKey && ee->error_code == BadAccess)
1927 || (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
1929 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
1930 ee->request_code, ee->error_code);
1931 return xerrorxlib(dpy, ee); /* may call exit */
1935 xerrordummy(Display *dsply, XErrorEvent *ee) {
1939 /* Startup Error handler to check if another window manager
1940 * is already running. */
1942 xerrorstart(Display *dsply, XErrorEvent *ee) {
1948 view(const char *arg) {
1951 Monitor *m = &monitors[monitorat(-1, -1)];
1953 memcpy(m->prevtags, m->seltags, sizeof initags);
1954 for(i = 0; i < LENGTH(tags); i++)
1955 m->seltags[i] = (NULL == arg);
1956 m->seltags[idxoftag(arg)] = True;
1961 viewprevtag(const char *arg) {
1962 static Bool tmp[LENGTH(tags)];
1964 Monitor *m = &monitors[monitorat(-1, -1)];
1966 memcpy(tmp, m->seltags, sizeof initags);
1967 memcpy(m->seltags, m->prevtags, sizeof initags);
1968 memcpy(m->prevtags, tmp, sizeof initags);
1973 zoom(const char *arg) {
1976 if(!sel || !dozoom || sel->isfloating)
1978 if((c = sel) == nexttiled(clients, &monitors[c->monitor]))
1979 if(!(c = nexttiled(c->next, &monitors[c->monitor])))
1988 monitorat(int x, int y) {
1991 if(!XineramaIsActive(dpy))
1994 if (x < 0 || y < 0) {
1997 XQueryPointer(dpy, root, &win, &win, &x, &y, &i, &i, &mask);
2000 for(i = 0; i < mcount; i++)
2001 if((x < 0 || (x >= monitors[i].sx && x < monitors[i].sx + monitors[i].sw))
2002 && (y < 0 || (y >= monitors[i].sy && y < monitors[i].sy + monitors[i].sh)))
2010 movetomonitor(const char *arg) {
2012 sel->monitor = arg ? atoi(arg) : (sel->monitor+1) % mcount;
2014 memcpy(sel->tags, monitors[sel->monitor].seltags, sizeof initags);
2015 resize(sel, monitors[sel->monitor].wax, monitors[sel->monitor].way, sel->w, sel->h, True);
2021 selectmonitor(const char *arg) {
2022 Monitor *m = &monitors[arg ? atoi(arg) : (monitorat(-1, -1)+1) % mcount];
2024 XWarpPointer(dpy, None, root, 0, 0, 0, 0, m->wax+m->waw/2, m->way+m->wah/2);
2030 main(int argc, char *argv[]) {
2031 if(argc == 2 && !strcmp("-v", argv[1]))
2032 eprint("dwm-"VERSION", © 2006-2007 Anselm R. Garbe, Sander van Dijk, "
2033 "Jukka Salmi, Premysl Hruby, Szabolcs Nagy\n");
2035 eprint("usage: dwm [-v]\n");
2037 setlocale(LC_CTYPE, "");
2038 if(!(dpy = XOpenDisplay(0)))
2039 eprint("dwm: cannot open display\n");
2040 screen = DefaultScreen(dpy);
2041 root = RootWindow(dpy, screen);