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);
123 int sx, sy, sw, sh, wax, way, wah, waw;
131 /* function declarations */
132 void applyrules(Client *c);
134 void attach(Client *c);
135 void attachstack(Client *c);
137 void buttonpress(XEvent *e);
138 void checkotherwm(void);
140 void compileregs(void);
141 void configure(Client *c);
142 void configurenotify(XEvent *e);
143 void configurerequest(XEvent *e);
144 void destroynotify(XEvent *e);
145 void detach(Client *c);
146 void detachstack(Client *c);
148 void drawsquare(Monitor *, Bool filled, Bool empty, unsigned long col[ColLast]);
149 void drawtext(Monitor *, const char *text, unsigned long col[ColLast]);
150 void *emallocz(unsigned int size);
151 void enternotify(XEvent *e);
152 void eprint(const char *errstr, ...);
153 void expose(XEvent *e);
154 void floating(void); /* default floating layout */
155 void focus(Client *c);
156 void focusin(XEvent *e);
157 void focusnext(const char *arg);
158 void focusprev(const char *arg);
159 Client *getclient(Window w);
160 unsigned long getcolor(const char *colstr, int screen);
161 long getstate(Window w);
162 Bool gettextprop(Window w, Atom atom, char *text, unsigned int size);
163 void grabbuttons(Client *c, Bool focused);
165 unsigned int idxoftag(const char *tag);
166 void initfont(Monitor*, const char *fontstr);
167 Bool isoccupied(Monitor *m, unsigned int t);
168 Bool isprotodel(Client *c);
169 Bool isvisible(Client *c, Monitor *m);
170 void keypress(XEvent *e);
171 void killclient(const char *arg);
172 void manage(Window w, XWindowAttributes *wa);
173 void mappingnotify(XEvent *e);
174 void maprequest(XEvent *e);
175 void movemouse(Client *c);
176 Client *nexttiled(Client *c, Monitor *m);
177 void propertynotify(XEvent *e);
178 void quit(const char *arg);
179 void reapply(const char *arg);
180 void resize(Client *c, int x, int y, int w, int h, Bool sizehints);
181 void resizemouse(Client *c);
185 void setclientstate(Client *c, long state);
186 void setlayout(const char *arg);
187 void setmwfact(const char *arg);
189 void spawn(const char *arg);
190 void tag(const char *arg);
191 unsigned int textnw(Monitor*, const char *text, unsigned int len);
192 unsigned int textw(Monitor*, const char *text);
194 void togglebar(const char *arg);
195 void togglefloating(const char *arg);
196 void toggletag(const char *arg);
197 void toggleview(const char *arg);
198 void unban(Client *c);
199 void unmanage(Client *c);
200 void unmapnotify(XEvent *e);
201 void updatebarpos(Monitor *s);
202 void updatesizehints(Client *c);
203 void updatetitle(Client *c);
204 void view(const char *arg);
205 void viewprevtag(const char *arg); /* views previous selected tags */
206 int xerror(Display *dpy, XErrorEvent *ee);
207 int xerrordummy(Display *dsply, XErrorEvent *ee);
208 int xerrorstart(Display *dsply, XErrorEvent *ee);
209 void zoom(const char *arg);
210 int monitorat(int, int);
211 void movetomonitor(const char *arg);
212 void selectmonitor(const char *arg);
218 int (*xerrorxlib)(Display *, XErrorEvent *);
219 unsigned int bh, bpos;
220 unsigned int blw = 0;
221 unsigned int numlockmask = 0;
222 void (*handler[LASTEvent]) (XEvent *) = {
223 [ButtonPress] = buttonpress,
224 [ConfigureRequest] = configurerequest,
225 [ConfigureNotify] = configurenotify,
226 [DestroyNotify] = destroynotify,
227 [EnterNotify] = enternotify,
230 [KeyPress] = keypress,
231 [MappingNotify] = mappingnotify,
232 [MapRequest] = maprequest,
233 [PropertyNotify] = propertynotify,
234 [UnmapNotify] = unmapnotify
236 Atom wmatom[WMLast], netatom[NetLast];
237 Bool domwfact = True;
239 Bool otherwm, readin;
241 Client *clients = NULL;
243 Client *stack = NULL;
244 Cursor cursor[CurLast];
251 /* configuration, allows nested code to access above variables */
254 //Bool prevtags[LENGTH(tags)];
256 /* function implementations */
258 applyrules(Client *c) {
259 static char buf[512];
262 Bool matched_tag = False;
263 Bool matched_monitor = False;
264 XClassHint ch = { 0 };
267 XGetClassHint(dpy, c->win, &ch);
268 snprintf(buf, sizeof buf, "%s:%s:%s",
269 ch.res_class ? ch.res_class : "",
270 ch.res_name ? ch.res_name : "", c->name);
271 for(i = 0; i < LENGTH(rules); i++)
272 if(regs[i].propregex && !regexec(regs[i].propregex, buf, 1, &tmp, 0)) {
273 if (rules[i].monitor >= 0 && rules[i].monitor < mcount) {
274 matched_monitor = True;
275 c->monitor = rules[i].monitor;
278 c->isfloating = rules[i].isfloating;
279 for(j = 0; regs[i].tagregex && j < LENGTH(tags); j++) {
280 if(!regexec(regs[i].tagregex, tags[j], 1, &tmp, 0)) {
291 memcpy(c->tags, monitors[monitorat(-1, -1)].seltags, sizeof initags);
292 if (!matched_monitor)
293 c->monitor = monitorat(-1, -1);
300 for(c = clients; c; c = c->next)
301 if(isvisible(c, &monitors[c->monitor]))
306 monitors[selmonitor].layout->arrange();
320 attachstack(Client *c) {
329 XMoveWindow(dpy, c->win, c->x + 3 * monitors[c->monitor].sw, c->y);
334 buttonpress(XEvent *e) {
337 XButtonPressedEvent *ev = &e->xbutton;
339 Monitor s = monitors[monitorat(-1, -1)];
341 if(ev->window == s.barwin) {
343 for(i = 0; i < LENGTH(tags); i++) {
344 x += textw(&s, tags[i]);
346 if(ev->button == Button1) {
347 if(ev->state & MODKEY)
352 else if(ev->button == Button3) {
353 if(ev->state & MODKEY)
361 if((ev->x < x + blw) && ev->button == Button1)
364 else if((c = getclient(ev->window))) {
366 if(CLEANMASK(ev->state) != MODKEY)
368 if(ev->button == Button1) {
369 if((s.layout->arrange == floating) || c->isfloating)
372 togglefloating(NULL);
375 else if(ev->button == Button2) {
376 if((floating != s.layout->arrange) && c->isfloating)
377 togglefloating(NULL);
381 else if(ev->button == Button3 && !c->isfixed) {
382 if((floating == s.layout->arrange) || c->isfloating)
385 togglefloating(NULL);
394 XSetErrorHandler(xerrorstart);
396 /* this causes an error if some other window manager is running */
397 XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask);
400 eprint("dwm: another window manager is already running\n");
402 XSetErrorHandler(NULL);
403 xerrorxlib = XSetErrorHandler(xerror);
415 for(i = 0; i < mcount; i++) {
416 Monitor *m = &monitors[i];
418 XFreeFontSet(dpy, m->dc.font.set);
420 XFreeFont(dpy, m->dc.font.xfont);
421 XUngrabKey(dpy, AnyKey, AnyModifier, m->root);
422 XFreePixmap(dpy, m->dc.drawable);
423 XFreeGC(dpy, m->dc.gc);
424 XDestroyWindow(dpy, m->barwin);
425 XFreeCursor(dpy, cursor[CurNormal]);
426 XFreeCursor(dpy, cursor[CurResize]);
427 XFreeCursor(dpy, cursor[CurMove]);
428 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
440 regs = emallocz(LENGTH(rules) * sizeof(Regs));
441 for(i = 0; i < LENGTH(rules); i++) {
443 reg = emallocz(sizeof(regex_t));
444 if(regcomp(reg, rules[i].prop, REG_EXTENDED))
447 regs[i].propregex = reg;
450 reg = emallocz(sizeof(regex_t));
451 if(regcomp(reg, rules[i].tags, REG_EXTENDED))
454 regs[i].tagregex = reg;
460 configure(Client *c) {
463 ce.type = ConfigureNotify;
471 ce.border_width = c->border;
473 ce.override_redirect = False;
474 XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce);
478 configurenotify(XEvent *e) {
479 XConfigureEvent *ev = &e->xconfigure;
480 Monitor *m = &monitors[selmonitor];
482 if(ev->window == m->root && (ev->width != m->sw || ev->height != m->sh)) {
485 XFreePixmap(dpy, dc.drawable);
486 dc.drawable = XCreatePixmap(dpy, m->root, m->sw, bh, DefaultDepth(dpy, m->screen));
487 XResizeWindow(dpy, m->barwin, m->sw, bh);
494 configurerequest(XEvent *e) {
496 XConfigureRequestEvent *ev = &e->xconfigurerequest;
499 if((c = getclient(ev->window))) {
500 Monitor *m = &monitors[c->monitor];
501 if(ev->value_mask & CWBorderWidth)
502 c->border = ev->border_width;
503 if(c->isfixed || c->isfloating || (floating == m->layout->arrange)) {
504 if(ev->value_mask & CWX)
506 if(ev->value_mask & CWY)
508 if(ev->value_mask & CWWidth)
510 if(ev->value_mask & CWHeight)
512 if((c->x - m->sx + c->w) > m->sw && c->isfloating)
513 c->x = m->sx + (m->sw / 2 - c->w / 2); /* center in x direction */
514 if((c->y - m->sy + c->h) > m->sh && c->isfloating)
515 c->y = m->sy + (m->sh / 2 - c->h / 2); /* center in y direction */
516 if((ev->value_mask & (CWX | CWY))
517 && !(ev->value_mask & (CWWidth | CWHeight)))
519 if(isvisible(c, &monitors[monitorat(-1,-1)]))
520 XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
528 wc.width = ev->width;
529 wc.height = ev->height;
530 wc.border_width = ev->border_width;
531 wc.sibling = ev->above;
532 wc.stack_mode = ev->detail;
533 XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
539 destroynotify(XEvent *e) {
541 XDestroyWindowEvent *ev = &e->xdestroywindow;
543 if((c = getclient(ev->window)))
550 c->prev->next = c->next;
552 c->next->prev = c->prev;
555 c->next = c->prev = NULL;
559 detachstack(Client *c) {
562 for(tc=&stack; *tc && *tc != c; tc=&(*tc)->snext);
570 for(s = 0; s < mcount; ++s) {
571 Monitor *m = &monitors[s];
573 for(i = 0; i < LENGTH(tags); i++) {
574 m->dc.w = textw(m, tags[i]);
576 drawtext(m, tags[i], m->dc.sel);
577 drawsquare(m, sel && sel->tags[i] && sel->monitor == selmonitor, isoccupied(m, i), m->dc.sel);
580 drawtext(m, tags[i], m->dc.norm);
581 drawsquare(m, sel && sel->tags[i] && sel->monitor == selmonitor, isoccupied(m, i), m->dc.norm);
586 drawtext(m, m->layout->symbol, m->dc.norm);
587 x = m->dc.x + m->dc.w;
588 m->dc.w = textw(m, stext);
589 m->dc.x = m->sw - m->dc.w;
594 drawtext(m, stext, m->dc.norm);
595 if((m->dc.w = m->dc.x - x) > bh) {
597 if(sel && sel->monitor == selmonitor) {
598 drawtext(m, sel->name, m->dc.sel);
599 drawsquare(m, False, sel->isfloating, m->dc.sel);
602 drawtext(m, NULL, m->dc.norm);
604 XCopyArea(dpy, m->dc.drawable, m->barwin, m->dc.gc, 0, 0, m->sw, bh, 0, 0);
610 drawsquare(Monitor *m, Bool filled, Bool empty, unsigned long col[ColLast]) {
613 XRectangle r = { m->dc.x, m->dc.y, m->dc.w, m->dc.h };
615 gcv.foreground = col[ColFG];
616 XChangeGC(dpy, m->dc.gc, GCForeground, &gcv);
617 x = (m->dc.font.ascent + m->dc.font.descent + 2) / 4;
621 r.width = r.height = x + 1;
622 XFillRectangles(dpy, m->dc.drawable, m->dc.gc, &r, 1);
625 r.width = r.height = x;
626 XDrawRectangles(dpy, m->dc.drawable, m->dc.gc, &r, 1);
631 drawtext(Monitor *m, const char *text, unsigned long col[ColLast]) {
633 static char buf[256];
634 unsigned int len, olen;
635 XRectangle r = { m->dc.x, m->dc.y, m->dc.w, m->dc.h };
637 XSetForeground(dpy, m->dc.gc, col[ColBG]);
638 XFillRectangles(dpy, m->dc.drawable, m->dc.gc, &r, 1);
642 olen = len = strlen(text);
643 if(len >= sizeof buf)
644 len = sizeof buf - 1;
645 memcpy(buf, text, len);
647 h = m->dc.font.ascent + m->dc.font.descent;
648 y = m->dc.y + (m->dc.h / 2) - (h / 2) + m->dc.font.ascent;
649 x = m->dc.x + (h / 2);
650 /* shorten text if necessary */
651 while(len && (w = textnw(m, buf, len)) > m->dc.w - h)
662 return; /* too long */
663 XSetForeground(dpy, m->dc.gc, col[ColFG]);
665 XmbDrawString(dpy, m->dc.drawable, m->dc.font.set, m->dc.gc, x, y, buf, len);
667 XDrawString(dpy, m->dc.drawable, m->dc.gc, x, y, buf, len);
671 emallocz(unsigned int size) {
672 void *res = calloc(1, size);
675 eprint("fatal: could not malloc() %u bytes\n", size);
680 enternotify(XEvent *e) {
683 XCrossingEvent *ev = &e->xcrossing;
685 if(ev->mode != NotifyNormal || ev->detail == NotifyInferior)
687 if((c = getclient(ev->window)))
690 for(i = 0; i < mcount; i++)
691 if(ev->window == monitors[i].root) {
700 eprint(const char *errstr, ...) {
703 va_start(ap, errstr);
704 vfprintf(stderr, errstr, ap);
711 XExposeEvent *ev = &e->xexpose;
714 if(ev->window == monitors[selmonitor].barwin)
720 floating(void) { /* default floating layout */
723 domwfact = dozoom = False;
724 for(c = clients; c; c = c->next)
725 if(isvisible(c, &monitors[selmonitor]))
726 resize(c, c->x, c->y, c->w, c->h, True);
731 Monitor *m = &monitors[c ? c->monitor : selmonitor];
732 if(!c || (c && !isvisible(c, m)))
733 for(c = stack; c && !isvisible(c, m); c = c->snext);
734 if(sel && sel != c) {
735 grabbuttons(sel, False);
736 XSetWindowBorder(dpy, sel->win, monitors[sel->monitor].dc.norm[ColBorder]);
741 grabbuttons(c, True);
746 XSetWindowBorder(dpy, c->win, m->dc.sel[ColBorder]);
747 XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
748 selmonitor = c->monitor;
751 XSetInputFocus(dpy, m->root, RevertToPointerRoot, CurrentTime);
756 focusin(XEvent *e) { /* there are some broken focus acquiring clients */
757 XFocusChangeEvent *ev = &e->xfocus;
759 if(sel && ev->window != sel->win)
760 XSetInputFocus(dpy, sel->win, RevertToPointerRoot, CurrentTime);
764 focusnext(const char *arg) {
766 Monitor *m = &monitors[selmonitor];
770 for(c = sel->next; c && !isvisible(c, m); c = c->next);
772 for(c = clients; c && !isvisible(c, m); c = c->next);
780 focusprev(const char *arg) {
782 Monitor *m = &monitors[selmonitor];
786 for(c = sel->prev; c && !isvisible(c, m); c = c->prev);
788 for(c = clients; c && c->next; c = c->next);
789 for(; c && !isvisible(c, m); c = c->prev);
798 getclient(Window w) {
801 for(c = clients; c && c->win != w; c = c->next);
806 getcolor(const char *colstr, int screen) {
807 Colormap cmap = DefaultColormap(dpy, screen);
810 if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
811 eprint("error, cannot allocate color '%s'\n", colstr);
819 unsigned char *p = NULL;
820 unsigned long n, extra;
823 status = XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState],
824 &real, &format, &n, &extra, (unsigned char **)&p);
825 if(status != Success)
834 gettextprop(Window w, Atom atom, char *text, unsigned int size) {
839 if(!text || size == 0)
842 XGetTextProperty(dpy, w, &name, atom);
845 if(name.encoding == XA_STRING)
846 strncpy(text, (char *)name.value, size - 1);
848 if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success
850 strncpy(text, *list, size - 1);
851 XFreeStringList(list);
854 text[size - 1] = '\0';
860 grabbuttons(Client *c, Bool focused) {
861 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
864 XGrabButton(dpy, Button1, MODKEY, c->win, False, BUTTONMASK,
865 GrabModeAsync, GrabModeSync, None, None);
866 XGrabButton(dpy, Button1, MODKEY | LockMask, c->win, False, BUTTONMASK,
867 GrabModeAsync, GrabModeSync, None, None);
868 XGrabButton(dpy, Button1, MODKEY | numlockmask, c->win, False, BUTTONMASK,
869 GrabModeAsync, GrabModeSync, None, None);
870 XGrabButton(dpy, Button1, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK,
871 GrabModeAsync, GrabModeSync, None, None);
873 XGrabButton(dpy, Button2, MODKEY, c->win, False, BUTTONMASK,
874 GrabModeAsync, GrabModeSync, None, None);
875 XGrabButton(dpy, Button2, MODKEY | LockMask, c->win, False, BUTTONMASK,
876 GrabModeAsync, GrabModeSync, None, None);
877 XGrabButton(dpy, Button2, MODKEY | numlockmask, c->win, False, BUTTONMASK,
878 GrabModeAsync, GrabModeSync, None, None);
879 XGrabButton(dpy, Button2, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK,
880 GrabModeAsync, GrabModeSync, None, None);
882 XGrabButton(dpy, Button3, MODKEY, c->win, False, BUTTONMASK,
883 GrabModeAsync, GrabModeSync, None, None);
884 XGrabButton(dpy, Button3, MODKEY | LockMask, c->win, False, BUTTONMASK,
885 GrabModeAsync, GrabModeSync, None, None);
886 XGrabButton(dpy, Button3, MODKEY | numlockmask, c->win, False, BUTTONMASK,
887 GrabModeAsync, GrabModeSync, None, None);
888 XGrabButton(dpy, Button3, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK,
889 GrabModeAsync, GrabModeSync, None, None);
892 XGrabButton(dpy, AnyButton, AnyModifier, c->win, False, BUTTONMASK,
893 GrabModeAsync, GrabModeSync, None, None);
900 XModifierKeymap *modmap;
902 /* init modifier map */
903 modmap = XGetModifierMapping(dpy);
904 for(i = 0; i < 8; i++)
905 for(j = 0; j < modmap->max_keypermod; j++) {
906 if(modmap->modifiermap[i * modmap->max_keypermod + j] == XKeysymToKeycode(dpy, XK_Num_Lock))
907 numlockmask = (1 << i);
909 XFreeModifiermap(modmap);
911 for(i = 0; i < mcount; i++) {
912 Monitor *m = &monitors[i];
913 XUngrabKey(dpy, AnyKey, AnyModifier, m->root);
914 for(j = 0; j < LENGTH(keys); j++) {
915 code = XKeysymToKeycode(dpy, keys[j].keysym);
916 XGrabKey(dpy, code, keys[j].mod, m->root, True,
917 GrabModeAsync, GrabModeAsync);
918 XGrabKey(dpy, code, keys[j].mod | LockMask, m->root, True,
919 GrabModeAsync, GrabModeAsync);
920 XGrabKey(dpy, code, keys[j].mod | numlockmask, m->root, True,
921 GrabModeAsync, GrabModeAsync);
922 XGrabKey(dpy, code, keys[j].mod | numlockmask | LockMask, m->root, True,
923 GrabModeAsync, GrabModeAsync);
929 idxoftag(const char *tag) {
932 for(i = 0; (i < LENGTH(tags)) && (tags[i] != tag); i++);
933 return (i < LENGTH(tags)) ? i : 0;
937 initfont(Monitor *m, const char *fontstr) {
938 char *def, **missing;
943 XFreeFontSet(dpy, m->dc.font.set);
944 m->dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
947 fprintf(stderr, "dwm: missing fontset: %s\n", missing[n]);
948 XFreeStringList(missing);
951 XFontSetExtents *font_extents;
952 XFontStruct **xfonts;
954 m->dc.font.ascent = m->dc.font.descent = 0;
955 font_extents = XExtentsOfFontSet(m->dc.font.set);
956 n = XFontsOfFontSet(m->dc.font.set, &xfonts, &font_names);
957 for(i = 0, m->dc.font.ascent = 0, m->dc.font.descent = 0; i < n; i++) {
958 if(m->dc.font.ascent < (*xfonts)->ascent)
959 m->dc.font.ascent = (*xfonts)->ascent;
960 if(m->dc.font.descent < (*xfonts)->descent)
961 m->dc.font.descent = (*xfonts)->descent;
967 XFreeFont(dpy, m->dc.font.xfont);
968 m->dc.font.xfont = NULL;
969 if(!(m->dc.font.xfont = XLoadQueryFont(dpy, fontstr))
970 && !(m->dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
971 eprint("error, cannot load font: '%s'\n", fontstr);
972 m->dc.font.ascent = m->dc.font.xfont->ascent;
973 m->dc.font.descent = m->dc.font.xfont->descent;
975 m->dc.font.height = m->dc.font.ascent + m->dc.font.descent;
979 isoccupied(Monitor *m, unsigned int t) {
982 for(c = clients; c; c = c->next)
983 if(c->tags[t] && c->monitor == selmonitor)
989 isprotodel(Client *c) {
994 if(XGetWMProtocols(dpy, c->win, &protocols, &n)) {
995 for(i = 0; !ret && i < n; i++)
996 if(protocols[i] == wmatom[WMDelete])
1004 isvisible(Client *c, Monitor *m) {
1007 for(i = 0; i < LENGTH(tags); i++)
1008 if(c->tags[i] && monitors[c->monitor].seltags[i] && c->monitor == selmonitor)
1014 keypress(XEvent *e) {
1020 keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
1021 for(i = 0; i < LENGTH(keys); i++)
1022 if(keysym == keys[i].keysym
1023 && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state))
1026 keys[i].func(keys[i].arg);
1031 killclient(const char *arg) {
1036 if(isprotodel(sel)) {
1037 ev.type = ClientMessage;
1038 ev.xclient.window = sel->win;
1039 ev.xclient.message_type = wmatom[WMProtocols];
1040 ev.xclient.format = 32;
1041 ev.xclient.data.l[0] = wmatom[WMDelete];
1042 ev.xclient.data.l[1] = CurrentTime;
1043 XSendEvent(dpy, sel->win, False, NoEventMask, &ev);
1046 XKillClient(dpy, sel->win);
1050 manage(Window w, XWindowAttributes *wa) {
1051 Client *c, *t = NULL;
1052 Monitor *m = &monitors[selmonitor];
1057 c = emallocz(sizeof(Client));
1058 c->tags = emallocz(sizeof initags);
1063 c->x = wa->x + m->sx;
1064 c->y = wa->y + m->sy;
1067 c->oldborder = wa->border_width;
1069 if (monitorat(c->x, c->y) != c->monitor) {
1074 if(c->w == m->sw && c->h == m->sh) {
1077 c->border = wa->border_width;
1080 if(c->x + c->w + 2 * c->border > m->wax + m->waw)
1081 c->x = m->wax + m->waw - c->w - 2 * c->border;
1082 if(c->y + c->h + 2 * c->border > m->way + m->wah)
1083 c->y = m->way + m->wah - c->h - 2 * c->border;
1088 c->border = BORDERPX;
1090 wc.border_width = c->border;
1091 XConfigureWindow(dpy, w, CWBorderWidth, &wc);
1092 XSetWindowBorder(dpy, w, m->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 if((rettrans = XGetTransientForHint(dpy, w, &trans) == Success))
1099 for(t = clients; t && t->win != trans; t = t->next);
1101 memcpy(c->tags, t->tags, sizeof initags);
1103 c->isfloating = (rettrans == Success) || c->isfixed;
1106 XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h); /* some windows require this */
1108 XMapWindow(dpy, c->win);
1109 setclientstate(c, NormalState);
1114 mappingnotify(XEvent *e) {
1115 XMappingEvent *ev = &e->xmapping;
1117 XRefreshKeyboardMapping(ev);
1118 if(ev->request == MappingKeyboard)
1123 maprequest(XEvent *e) {
1124 static XWindowAttributes wa;
1125 XMapRequestEvent *ev = &e->xmaprequest;
1127 if(!XGetWindowAttributes(dpy, ev->window, &wa))
1129 if(wa.override_redirect)
1131 if(!getclient(ev->window))
1132 manage(ev->window, &wa);
1136 movemouse(Client *c) {
1137 int x1, y1, ocx, ocy, di, nx, ny;
1144 if(XGrabPointer(dpy, monitors[selmonitor].root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
1145 None, cursor[CurMove], CurrentTime) != GrabSuccess)
1147 XQueryPointer(dpy, monitors[selmonitor].root, &dummy, &dummy, &x1, &y1, &di, &di, &dui);
1149 XMaskEvent(dpy, MOUSEMASK | ExposureMask | SubstructureRedirectMask, &ev);
1152 XUngrabPointer(dpy, CurrentTime);
1154 case ConfigureRequest:
1157 handler[ev.type](&ev);
1161 nx = ocx + (ev.xmotion.x - x1);
1162 ny = ocy + (ev.xmotion.y - y1);
1163 Monitor *m = &monitors[monitorat(nx, ny)];
1164 if(abs(m->wax - nx) < SNAP)
1166 else if(abs((m->wax + m->waw) - (nx + c->w + 2 * c->border)) < SNAP)
1167 nx = m->wax + m->waw - c->w - 2 * c->border;
1168 if(abs(m->way - ny) < SNAP)
1170 else if(abs((m->way + m->wah) - (ny + c->h + 2 * c->border)) < SNAP)
1171 ny = m->way + m->wah - c->h - 2 * c->border;
1172 resize(c, nx, ny, c->w, c->h, False);
1173 memcpy(c->tags, monitors[monitorat(nx, ny)].seltags, sizeof initags);
1180 nexttiled(Client *c, Monitor *m) {
1181 for(; c && (c->isfloating || !isvisible(c, m)); c = c->next);
1186 propertynotify(XEvent *e) {
1189 XPropertyEvent *ev = &e->xproperty;
1191 if(ev->state == PropertyDelete)
1192 return; /* ignore */
1193 if((c = getclient(ev->window))) {
1196 case XA_WM_TRANSIENT_FOR:
1197 XGetTransientForHint(dpy, c->win, &trans);
1198 if(!c->isfloating && (c->isfloating = (getclient(trans) != NULL)))
1201 case XA_WM_NORMAL_HINTS:
1205 if(ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
1214 quit(const char *arg) {
1215 readin = running = False;
1219 reapply(const char *arg) {
1220 static Bool zerotags[LENGTH(tags)] = { 0 };
1223 for(c = clients; c; c = c->next) {
1224 memcpy(c->tags, zerotags, sizeof zerotags);
1231 resize(Client *c, int x, int y, int w, int h, Bool sizehints) {
1233 Monitor scr = monitors[monitorat(x, y)];
1234 c->monitor = monitorat(x, y);
1237 /* set minimum possible */
1243 /* temporarily remove base dimensions */
1247 /* adjust for aspect limits */
1248 if (c->minay > 0 && c->maxay > 0 && c->minax > 0 && c->maxax > 0) {
1249 if (w * c->maxay > h * c->maxax)
1250 w = h * c->maxax / c->maxay;
1251 else if (w * c->minay < h * c->minax)
1252 h = w * c->minay / c->minax;
1255 /* adjust for increment value */
1261 /* restore base dimensions */
1265 if(c->minw > 0 && w < c->minw)
1267 if(c->minh > 0 && h < c->minh)
1269 if(c->maxw > 0 && w > c->maxw)
1271 if(c->maxh > 0 && h > c->maxh)
1274 if(w <= 0 || h <= 0)
1276 /* TODO: offscreen appearance fixes */
1279 x = scr.sw - w - 2 * c->border;
1281 y = scr.sh - h - 2 * c->border;
1282 if(x + w + 2 * c->border < scr.sx)
1284 if(y + h + 2 * c->border < scr.sy)
1287 if(c->x != x || c->y != y || c->w != w || c->h != h) {
1290 c->w = wc.width = w;
1291 c->h = wc.height = h;
1292 wc.border_width = c->border;
1293 XConfigureWindow(dpy, c->win, CWX | CWY | CWWidth | CWHeight | CWBorderWidth, &wc);
1300 resizemouse(Client *c) {
1307 if(XGrabPointer(dpy, monitors[selmonitor].root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
1308 None, cursor[CurResize], CurrentTime) != GrabSuccess)
1310 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->border - 1, c->h + c->border - 1);
1312 XMaskEvent(dpy, MOUSEMASK | ExposureMask | SubstructureRedirectMask , &ev);
1315 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0,
1316 c->w + c->border - 1, c->h + c->border - 1);
1317 XUngrabPointer(dpy, CurrentTime);
1318 while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
1320 case ConfigureRequest:
1323 handler[ev.type](&ev);
1327 if((nw = ev.xmotion.x - ocx - 2 * c->border + 1) <= 0)
1329 if((nh = ev.xmotion.y - ocy - 2 * c->border + 1) <= 0)
1331 resize(c, c->x, c->y, nw, nh, True);
1347 if(sel->isfloating || (monitors[selmonitor].layout->arrange == floating))
1348 XRaiseWindow(dpy, sel->win);
1349 if(monitors[selmonitor].layout->arrange != floating) {
1350 wc.stack_mode = Below;
1351 wc.sibling = monitors[selmonitor].barwin;
1352 if(!sel->isfloating) {
1353 XConfigureWindow(dpy, sel->win, CWSibling | CWStackMode, &wc);
1354 wc.sibling = sel->win;
1356 for(s = 0; s < mcount; s++) {
1357 for(c = nexttiled(clients, &monitors[s]); c; c = nexttiled(c->next, &monitors[s])) {
1360 XConfigureWindow(dpy, c->win, CWSibling | CWStackMode, &wc);
1361 wc.sibling = c->win;
1366 while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
1372 char buf[sizeof stext];
1375 unsigned int len, offset;
1378 /* main event loop, also reads status text from stdin */
1380 xfd = ConnectionNumber(dpy);
1383 len = sizeof stext - 1;
1384 buf[len] = stext[len] = '\0'; /* 0-terminator is never touched */
1388 FD_SET(STDIN_FILENO, &rd);
1390 if(select(xfd + 1, &rd, NULL, NULL, NULL) == -1) {
1393 eprint("select failed\n");
1395 if(FD_ISSET(STDIN_FILENO, &rd)) {
1396 switch((r = read(STDIN_FILENO, buf + offset, len - offset))) {
1398 strncpy(stext, strerror(errno), len);
1402 strncpy(stext, "EOF", 4);
1406 for(p = buf + offset; r > 0; p++, r--, offset++)
1407 if(*p == '\n' || *p == '\0') {
1409 strncpy(stext, buf, len);
1410 p += r - 1; /* p is buf + offset + r - 1 */
1411 for(r = 0; *(p - r) && *(p - r) != '\n'; r++);
1414 memmove(buf, p - r + 1, r);
1421 while(XPending(dpy)) {
1422 XNextEvent(dpy, &ev);
1423 if(handler[ev.type])
1424 (handler[ev.type])(&ev); /* call handler */
1431 unsigned int i, j, num;
1432 Window *wins, d1, d2;
1433 XWindowAttributes wa;
1435 for(i = 0; i < mcount; i++) {
1436 Monitor *m = &monitors[i];
1438 if(XQueryTree(dpy, m->root, &d1, &d2, &wins, &num)) {
1439 for(j = 0; j < num; j++) {
1440 if(!XGetWindowAttributes(dpy, wins[j], &wa)
1441 || wa.override_redirect || XGetTransientForHint(dpy, wins[j], &d1))
1443 if(wa.map_state == IsViewable || getstate(wins[j]) == IconicState)
1444 manage(wins[j], &wa);
1446 for(j = 0; j < num; j++) { /* now the transients */
1447 if(!XGetWindowAttributes(dpy, wins[j], &wa))
1449 if(XGetTransientForHint(dpy, wins[j], &d1)
1450 && (wa.map_state == IsViewable || getstate(wins[j]) == IconicState))
1451 manage(wins[j], &wa);
1460 setclientstate(Client *c, long state) {
1461 long data[] = {state, None};
1463 XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,
1464 PropModeReplace, (unsigned char *)data, 2);
1468 setlayout(const char *arg) {
1470 Monitor *m = &monitors[monitorat(-1, -1)];
1474 if(m->layout == &layouts[LENGTH(layouts)])
1475 m->layout = &layouts[0];
1478 for(i = 0; i < LENGTH(layouts); i++)
1479 if(!strcmp(arg, layouts[i].symbol))
1481 if(i == LENGTH(layouts))
1483 m->layout = &layouts[i];
1492 setmwfact(const char *arg) {
1495 Monitor *m = &monitors[monitorat(-1, -1)];
1499 /* arg handling, manipulate mwfact */
1502 else if(sscanf(arg, "%lf", &delta) == 1) {
1503 if(arg[0] == '+' || arg[0] == '-')
1509 else if(m->mwfact > 0.9)
1517 unsigned int i, j, k;
1519 XSetWindowAttributes wa;
1520 XineramaScreenInfo *info = NULL;
1523 wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
1524 wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
1525 wmatom[WMName] = XInternAtom(dpy, "WM_NAME", False);
1526 wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);
1527 netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
1528 netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
1531 wa.cursor = cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
1532 cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
1533 cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
1535 // init screens/monitors first
1536 if (XineramaIsActive(dpy)) {
1537 info = XineramaQueryScreens(dpy, &mcount);
1540 monitors = emallocz(mcount * sizeof(Monitor));
1542 for(i = 0; i < mcount; i++) {
1547 m->root = RootWindow(dpy, i);
1549 if (mcount != 1) { // TODO: Xinerama
1550 m->sx = info[i].x_org;
1551 m->sy = info[i].y_org;
1552 m->sw = info[i].width;
1553 m->sh = info[i].height;
1558 m->sw = DisplayWidth(dpy, m->screen);
1559 m->sh = DisplayHeight(dpy, m->screen);
1562 m->seltags = emallocz(sizeof initags);
1563 m->prevtags = emallocz(sizeof initags);
1565 memcpy(m->seltags, initags, sizeof initags);
1566 memcpy(m->prevtags, initags, sizeof initags);
1568 /* init appearance */
1569 m->dc.norm[ColBorder] = getcolor(NORMBORDERCOLOR, i);
1570 m->dc.norm[ColBG] = getcolor(NORMBGCOLOR, i);
1571 m->dc.norm[ColFG] = getcolor(NORMFGCOLOR, i);
1572 m->dc.sel[ColBorder] = getcolor(SELBORDERCOLOR, i);
1573 m->dc.sel[ColBG] = getcolor(SELBGCOLOR, i);
1574 m->dc.sel[ColFG] = getcolor(SELFGCOLOR, i);
1576 m->dc.h = bh = m->dc.font.height + 2;
1580 m->layout = &layouts[0];
1581 for(blw = k = 0; k < LENGTH(layouts); k++) {
1582 j = textw(m, layouts[k].symbol);
1587 // TODO: bpos per screen?
1589 wa.override_redirect = 1;
1590 wa.background_pixmap = ParentRelative;
1591 wa.event_mask = ButtonPressMask | ExposureMask;
1594 m->barwin = XCreateWindow(dpy, m->root, m->sx, m->sy, m->sw, bh, 0,
1595 DefaultDepth(dpy, m->screen), CopyFromParent, DefaultVisual(dpy, m->screen),
1596 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
1597 XDefineCursor(dpy, m->barwin, cursor[CurNormal]);
1599 XMapRaised(dpy, m->barwin);
1600 strcpy(stext, "dwm-"VERSION);
1601 m->dc.drawable = XCreatePixmap(dpy, m->root, m->sw, bh, DefaultDepth(dpy, m->screen));
1602 m->dc.gc = XCreateGC(dpy, m->root, 0, 0);
1603 XSetLineAttributes(dpy, m->dc.gc, 1, LineSolid, CapButt, JoinMiter);
1605 XSetFont(dpy, m->dc.gc, m->dc.font.xfont->fid);
1607 /* EWMH support per monitor */
1608 XChangeProperty(dpy, m->root, netatom[NetSupported], XA_ATOM, 32,
1609 PropModeReplace, (unsigned char *) netatom, NetLast);
1611 /* select for events */
1612 wa.event_mask = SubstructureRedirectMask | SubstructureNotifyMask
1613 | EnterWindowMask | LeaveWindowMask | StructureNotifyMask;
1614 XChangeWindowAttributes(dpy, m->root, CWEventMask | CWCursor, &wa);
1615 XSelectInput(dpy, m->root, wa.event_mask);
1626 spawn(const char *arg) {
1627 static char *shell = NULL;
1629 if(!shell && !(shell = getenv("SHELL")))
1633 /* The double-fork construct avoids zombie processes and keeps the code
1634 * clean from stupid signal handlers. */
1638 close(ConnectionNumber(dpy));
1640 execl(shell, shell, "-c", arg, (char *)NULL);
1641 fprintf(stderr, "dwm: execl '%s -c %s'", shell, arg);
1650 tag(const char *arg) {
1655 for(i = 0; i < LENGTH(tags); i++)
1656 sel->tags[i] = (NULL == arg);
1657 sel->tags[idxoftag(arg)] = True;
1662 textnw(Monitor *m, const char *text, unsigned int len) {
1665 if(m->dc.font.set) {
1666 XmbTextExtents(m->dc.font.set, text, len, NULL, &r);
1669 return XTextWidth(m->dc.font.xfont, text, len);
1673 textw(Monitor *m, const char *text) {
1674 return textnw(m, text, strlen(text)) + m->dc.font.height;
1679 unsigned int i, n, nx, ny, nw, nh, mw, th;
1683 domwfact = dozoom = True;
1685 nw = 0; /* gcc stupidity requires this */
1687 for (s = 0; s < mcount; s++) {
1688 Monitor *m = &monitors[s];
1690 for(n = 0, c = nexttiled(clients, m); c; c = nexttiled(c->next, m))
1693 for(i = 0, c = mc = nexttiled(clients, m); c; c = nexttiled(c->next, m)) {
1695 mw = (n == 1) ? m->waw : m->mwfact * m->waw;
1696 th = (n > 1) ? m->wah / (n - 1) : 0;
1697 if(n > 1 && th < bh)
1699 if(i == 0) { /* master */
1702 nw = mw - 2 * c->border;
1703 nh = m->wah - 2 * c->border;
1705 else { /* tile window */
1708 nx += mc->w + 2 * mc->border;
1709 nw = m->waw - mw - 2 * c->border;
1711 if(i + 1 == n) /* remainder */
1712 nh = (m->way + m->wah) - ny - 2 * c->border;
1714 nh = th - 2 * c->border;
1716 resize(c, nx, ny, nw, nh, RESIZEHINTS);
1717 if((RESIZEHINTS) && ((c->h < bh) || (c->h > nh) || (c->w < bh) || (c->w > nw)))
1718 /* client doesn't accept size constraints */
1719 resize(c, nx, ny, nw, nh, False);
1720 if(n > 1 && th != m->wah)
1721 ny = c->y + c->h + 2 * c->border;
1728 togglebar(const char *arg) {
1730 bpos = (BARPOS == BarOff) ? BarTop : BARPOS;
1733 updatebarpos(&monitors[monitorat(-1,-1)]);
1738 togglefloating(const char *arg) {
1741 sel->isfloating = !sel->isfloating;
1743 resize(sel, sel->x, sel->y, sel->w, sel->h, True);
1748 toggletag(const char *arg) {
1754 sel->tags[i] = !sel->tags[i];
1755 for(j = 0; j < LENGTH(tags) && !sel->tags[j]; j++);
1756 if(j == LENGTH(tags))
1757 sel->tags[i] = True; /* at least one tag must be enabled */
1762 toggleview(const char *arg) {
1765 Monitor *m = &monitors[monitorat(-1, -1)];
1768 m->seltags[i] = !m->seltags[i];
1769 for(j = 0; j < LENGTH(tags) && !m->seltags[j]; j++);
1770 if(j == LENGTH(tags))
1771 m->seltags[i] = True; /* at least one tag must be viewed */
1779 XMoveWindow(dpy, c->win, c->x, c->y);
1780 c->isbanned = False;
1784 unmanage(Client *c) {
1787 wc.border_width = c->oldborder;
1788 /* The server grab construct avoids race conditions. */
1790 XSetErrorHandler(xerrordummy);
1791 XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */
1796 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
1797 setclientstate(c, WithdrawnState);
1801 XSetErrorHandler(xerror);
1807 unmapnotify(XEvent *e) {
1809 XUnmapEvent *ev = &e->xunmap;
1811 if((c = getclient(ev->window)))
1816 updatebarpos(Monitor *s) {
1827 XMoveWindow(dpy, s->barwin, s->sx, s->sy);
1831 XMoveWindow(dpy, s->barwin, s->sx, s->sy + s->wah);
1834 XMoveWindow(dpy, s->barwin, s->sx, s->sy - bh);
1838 while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
1842 updatesizehints(Client *c) {
1846 if(!XGetWMNormalHints(dpy, c->win, &size, &msize) || !size.flags)
1848 c->flags = size.flags;
1849 if(c->flags & PBaseSize) {
1850 c->basew = size.base_width;
1851 c->baseh = size.base_height;
1853 else if(c->flags & PMinSize) {
1854 c->basew = size.min_width;
1855 c->baseh = size.min_height;
1858 c->basew = c->baseh = 0;
1859 if(c->flags & PResizeInc) {
1860 c->incw = size.width_inc;
1861 c->inch = size.height_inc;
1864 c->incw = c->inch = 0;
1865 if(c->flags & PMaxSize) {
1866 c->maxw = size.max_width;
1867 c->maxh = size.max_height;
1870 c->maxw = c->maxh = 0;
1871 if(c->flags & PMinSize) {
1872 c->minw = size.min_width;
1873 c->minh = size.min_height;
1875 else if(c->flags & PBaseSize) {
1876 c->minw = size.base_width;
1877 c->minh = size.base_height;
1880 c->minw = c->minh = 0;
1881 if(c->flags & PAspect) {
1882 c->minax = size.min_aspect.x;
1883 c->maxax = size.max_aspect.x;
1884 c->minay = size.min_aspect.y;
1885 c->maxay = size.max_aspect.y;
1888 c->minax = c->maxax = c->minay = c->maxay = 0;
1889 c->isfixed = (c->maxw && c->minw && c->maxh && c->minh
1890 && c->maxw == c->minw && c->maxh == c->minh);
1894 updatetitle(Client *c) {
1895 if(!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
1896 gettextprop(c->win, wmatom[WMName], c->name, sizeof c->name);
1899 /* There's no way to check accesses to destroyed windows, thus those cases are
1900 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
1901 * default error handler, which may call exit. */
1903 xerror(Display *dpy, XErrorEvent *ee) {
1904 if(ee->error_code == BadWindow
1905 || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
1906 || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
1907 || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
1908 || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
1909 || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
1910 || (ee->request_code == X_GrabKey && ee->error_code == BadAccess)
1911 || (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
1913 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
1914 ee->request_code, ee->error_code);
1915 return xerrorxlib(dpy, ee); /* may call exit */
1919 xerrordummy(Display *dsply, XErrorEvent *ee) {
1923 /* Startup Error handler to check if another window manager
1924 * is already running. */
1926 xerrorstart(Display *dsply, XErrorEvent *ee) {
1932 view(const char *arg) {
1935 Monitor *m = &monitors[monitorat(-1, -1)];
1937 memcpy(m->prevtags, m->seltags, sizeof initags);
1938 for(i = 0; i < LENGTH(tags); i++)
1939 m->seltags[i] = (NULL == arg);
1940 m->seltags[idxoftag(arg)] = True;
1945 viewprevtag(const char *arg) {
1946 static Bool tmp[LENGTH(tags)];
1948 Monitor *m = &monitors[monitorat(-1, -1)];
1950 memcpy(tmp, m->seltags, sizeof initags);
1951 memcpy(m->seltags, m->prevtags, sizeof initags);
1952 memcpy(m->prevtags, tmp, sizeof initags);
1957 zoom(const char *arg) {
1960 if(!sel || !dozoom || sel->isfloating)
1962 if((c = sel) == nexttiled(clients, &monitors[c->monitor]))
1963 if(!(c = nexttiled(c->next, &monitors[c->monitor])))
1972 monitorat(int x, int y) {
1976 if(!XineramaIsActive(dpy))
1979 if (x < 0 || y < 0) {
1982 XQueryPointer(dpy, DefaultRootWindow(dpy), &win, &win, &x, &y, &i, &i, &mask);
1985 for(i = 0; i < mcount; i++) {
1986 Monitor *m = &monitors[i];
1987 if((x < 0 || (x >= m->sx && x < m->sx + m->sw))
1988 && (y < 0 || (y >= m->sy && y < m->sy + m->sh)))
1997 movetomonitor(const char *arg) {
1999 sel->monitor = arg ? atoi(arg) : (sel->monitor+1) % mcount;
2001 memcpy(sel->tags, monitors[sel->monitor].seltags, sizeof initags);
2002 resize(sel, monitors[sel->monitor].wax, monitors[sel->monitor].way, sel->w, sel->h, True);
2008 selectmonitor(const char *arg) {
2009 Monitor *m = &monitors[arg ? atoi(arg) : (monitorat(-1, -1)+1) % mcount];
2011 XWarpPointer(dpy, None, m->root, 0, 0, 0, 0, m->wax+m->waw/2, m->way+m->wah/2);
2017 main(int argc, char *argv[]) {
2018 if(argc == 2 && !strcmp("-v", argv[1]))
2019 eprint("dwm-"VERSION", © 2006-2007 Anselm R. Garbe, Sander van Dijk, "
2020 "Jukka Salmi, Premysl Hruby, Szabolcs Nagy, Christof Musik\n");
2022 eprint("usage: dwm [-v]\n");
2024 setlocale(LC_CTYPE, "");
2025 if(!(dpy = XOpenDisplay(0)))
2026 eprint("dwm: cannot open display\n");