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 View View;
64 typedef struct Client Client;
68 int basew, baseh, incw, inch, maxw, maxh, minw, minh;
69 int minax, maxax, minay, maxay;
72 unsigned int border, oldborder;
73 Bool isbanned, isfixed, isfloating, isurgent;
82 unsigned long norm[ColLast];
83 unsigned long sel[ColLast];
93 } DC; /* draw context */
98 void (*func)(const char *arg);
104 void (*arrange)(View *);
120 int x, y, w, h, wax, way, wah, waw;
126 /* function declarations */
127 void applyrules(Client *c);
129 void attach(Client *c);
130 void attachstack(Client *c);
132 void buttonpress(XEvent *e);
133 void checkotherwm(void);
135 void compileregs(void);
136 void configure(Client *c);
137 void configurenotify(XEvent *e);
138 void configurerequest(XEvent *e);
139 void destroynotify(XEvent *e);
140 void detach(Client *c);
141 void detachstack(Client *c);
142 void drawbar(View *v);
143 void drawsquare(View *v, Bool filled, Bool empty, Bool invert, unsigned long col[ColLast]);
144 void drawtext(View *v, const char *text, unsigned long col[ColLast], Bool invert);
145 void *emallocz(unsigned int size);
146 void enternotify(XEvent *e);
147 void eprint(const char *errstr, ...);
148 void expose(XEvent *e);
149 void floating(View *v); /* default floating layout */
150 void focus(Client *c);
151 void focusin(XEvent *e);
152 void focusnext(const char *arg);
153 void focusprev(const char *arg);
154 Client *getclient(Window w);
155 unsigned long getcolor(const char *colstr);
156 View *getviewbar(Window barwin);
157 View *getview(Client *c);
158 long getstate(Window w);
159 Bool gettextprop(Window w, Atom atom, char *text, unsigned int size);
160 void grabbuttons(Client *c, Bool focused);
162 unsigned int idxoftag(const char *tag);
163 void initfont(const char *fontstr);
164 Bool isoccupied(unsigned int t);
165 Bool isprotodel(Client *c);
166 Bool isurgent(unsigned int t);
167 Bool isvisible(Client *c);
168 void keypress(XEvent *e);
169 void killclient(const char *arg);
170 void manage(Window w, XWindowAttributes *wa);
171 void mappingnotify(XEvent *e);
172 void maprequest(XEvent *e);
174 void movemouse(Client *c);
175 Client *nexttiled(Client *c, View *v);
176 void propertynotify(XEvent *e);
177 void quit(const char *arg);
178 void reapply(const char *arg);
179 void resize(Client *c, int x, int y, int w, int h, Bool sizehints);
180 void resizemouse(Client *c);
181 void restack(View *v);
184 void setclientstate(Client *c, long state);
185 void setlayout(const char *arg);
186 void setmwfact(const char *arg);
188 void spawn(const char *arg);
189 void tag(const char *arg);
190 unsigned int textnw(const char *text, unsigned int len);
191 unsigned int textw(const char *text);
193 void togglebar(const char *arg);
194 void togglefloating(const char *arg);
195 void toggletag(const char *arg);
196 void toggleview(const char *arg);
197 void unban(Client *c);
198 void unmanage(Client *c);
199 void unmapnotify(XEvent *e);
200 void updatebarpos(View *v);
201 void updatesizehints(Client *c);
202 void updatetitle(Client *c);
203 void updatewmhints(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 *dpy, XErrorEvent *ee);
208 int xerrorstart(Display *dpy, XErrorEvent *ee);
209 void zoom(const char *arg);
210 void selectview(const char *arg);
219 int (*xerrorxlib)(Display *, XErrorEvent *);
220 unsigned int bh, bpos;
221 unsigned int blw = 0;
222 unsigned int numlockmask = 0;
223 void (*handler[LASTEvent]) (XEvent *) = {
224 [ButtonPress] = buttonpress,
225 [ConfigureRequest] = configurerequest,
226 [ConfigureNotify] = configurenotify,
227 [DestroyNotify] = destroynotify,
228 [EnterNotify] = enternotify,
231 [KeyPress] = keypress,
232 [MappingNotify] = mappingnotify,
233 [MapRequest] = maprequest,
234 [PropertyNotify] = propertynotify,
235 [UnmapNotify] = unmapnotify
237 Atom wmatom[WMLast], netatom[NetLast];
238 Bool isxinerama = False;
239 Bool domwfact = True;
241 Bool otherwm, readin;
243 Client *clients = NULL;
245 Client *stack = NULL;
246 Cursor cursor[CurLast];
253 /* configuration, allows nested code to access above variables */
256 /* function implementations */
258 applyrules(Client *c) {
259 static char buf[512];
262 Bool matched_tag = False;
263 XClassHint ch = { 0 };
266 XGetClassHint(dpy, c->win, &ch);
267 snprintf(buf, sizeof buf, "%s:%s:%s",
268 ch.res_class ? ch.res_class : "",
269 ch.res_name ? ch.res_name : "", c->name);
270 for(i = 0; i < LENGTH(rules); i++)
271 if(regs[i].propregex && !regexec(regs[i].propregex, buf, 1, &tmp, 0)) {
272 c->isfloating = rules[i].isfloating;
273 for(j = 0; regs[i].tagregex && j < LENGTH(tags); j++) {
274 if(!regexec(regs[i].tagregex, tags[j], 1, &tmp, 0)) {
276 c->tags[j] = selview->id;
285 memcpy(c->tags, seltags, sizeof initags);
295 for(c = clients; c; c = c->next)
301 for(i = 0; i < nviews; i++) {
302 views[i].layout->arrange(&views[i]);
317 attachstack(Client *c) {
326 XMoveWindow(dpy, c->win, c->x + 3 * getview(c)->w, c->y);
331 buttonpress(XEvent *e) {
334 XButtonPressedEvent *ev = &e->xbutton;
338 if(ev->window == v->barwin) {
340 for(i = 0; i < LENGTH(tags); i++) {
343 if(ev->button == Button1) {
344 if(ev->state & MODKEY)
349 else if(ev->button == Button3) {
350 if(ev->state & MODKEY)
358 if((ev->x < x + blw) && ev->button == Button1)
361 else if((c = getclient(ev->window))) {
363 if(CLEANMASK(ev->state) != MODKEY)
365 if(ev->button == Button1) {
369 else if(ev->button == Button2) {
370 if((floating != v->layout->arrange) && c->isfloating)
371 togglefloating(NULL);
375 else if(ev->button == Button3 && !c->isfixed) {
385 XSetErrorHandler(xerrorstart);
387 /* this causes an error if some other window manager is running */
388 XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask);
391 eprint("dwm: another window manager is already running\n");
393 XSetErrorHandler(NULL);
394 xerrorxlib = XSetErrorHandler(xerror);
407 XFreeFontSet(dpy, dc.font.set);
409 XFreeFont(dpy, dc.font.xfont);
411 XUngrabKey(dpy, AnyKey, AnyModifier, root);
412 XFreePixmap(dpy, dc.drawable);
414 XFreeCursor(dpy, cursor[CurNormal]);
415 XFreeCursor(dpy, cursor[CurResize]);
416 XFreeCursor(dpy, cursor[CurMove]);
417 for(i = 0; i < nviews; i++)
418 XDestroyWindow(dpy, views[i].barwin);
420 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
430 regs = emallocz(LENGTH(rules) * sizeof(Regs));
431 for(i = 0; i < LENGTH(rules); i++) {
433 reg = emallocz(sizeof(regex_t));
434 if(regcomp(reg, rules[i].prop, REG_EXTENDED))
437 regs[i].propregex = reg;
440 reg = emallocz(sizeof(regex_t));
441 if(regcomp(reg, rules[i].tags, REG_EXTENDED))
444 regs[i].tagregex = reg;
450 configure(Client *c) {
453 ce.type = ConfigureNotify;
461 ce.border_width = c->border;
463 ce.override_redirect = False;
464 XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce);
468 configurenotify(XEvent *e) {
469 XConfigureEvent *ev = &e->xconfigure;
472 if(ev->window == root && (ev->width != v->w || ev->height != v->h)) {
473 /* TODO -- update Xinerama dimensions here */
476 XFreePixmap(dpy, dc.drawable);
477 dc.drawable = XCreatePixmap(dpy, root, DisplayWidth(root, screen), bh, DefaultDepth(dpy, screen));
478 XResizeWindow(dpy, v->barwin, v->w, bh);
485 configurerequest(XEvent *e) {
487 XConfigureRequestEvent *ev = &e->xconfigurerequest;
490 if((c = getclient(ev->window))) {
491 View *v = getview(c);
492 if(ev->value_mask & CWBorderWidth)
493 c->border = ev->border_width;
494 if(c->isfixed || c->isfloating || (floating == v->layout->arrange)) {
495 if(ev->value_mask & CWX)
497 if(ev->value_mask & CWY)
499 if(ev->value_mask & CWWidth)
501 if(ev->value_mask & CWHeight)
503 if((c->x - v->x + c->w) > v->w && c->isfloating)
504 c->x = v->x + (v->w / 2 - c->w / 2); /* center in x direction */
505 if((c->y - v->y + c->h) > v->h && c->isfloating)
506 c->y = v->y + (v->h / 2 - c->h / 2); /* center in y direction */
507 if((ev->value_mask & (CWX|CWY))
508 && !(ev->value_mask & (CWWidth|CWHeight)))
511 XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
519 wc.width = ev->width;
520 wc.height = ev->height;
521 wc.border_width = ev->border_width;
522 wc.sibling = ev->above;
523 wc.stack_mode = ev->detail;
524 XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
530 destroynotify(XEvent *e) {
532 XDestroyWindowEvent *ev = &e->xdestroywindow;
534 if((c = getclient(ev->window)))
541 c->prev->next = c->next;
543 c->next->prev = c->prev;
546 c->next = c->prev = NULL;
550 detachstack(Client *c) {
553 for(tc=&stack; *tc && *tc != c; tc=&(*tc)->snext);
563 for(c = stack; c && !isvisible(c); c = c->snext);
564 for(i = 0; i < LENGTH(tags); i++) {
565 dc.w = textw(tags[i]);
567 drawtext(v, tags[i], dc.sel, isurgent(i));
568 drawsquare(v, c && c->tags[i], isoccupied(i), isurgent(i), dc.sel);
571 drawtext(v, tags[i], dc.norm, isurgent(i));
572 drawsquare(v, c && c->tags[i], isoccupied(i), isurgent(i), dc.norm);
577 drawtext(v, v->layout->symbol, dc.norm, False);
586 drawtext(v, stext, dc.norm, False);
590 if((dc.w = dc.x - x) > bh) {
593 drawtext(v, c->name, dc.sel, False);
594 drawsquare(v, False, c->isfloating, False, dc.sel);
597 drawtext(v, NULL, dc.norm, False);
599 XCopyArea(dpy, dc.drawable, v->barwin, dc.gc, 0, 0, v->w, bh, 0, 0);
604 drawsquare(View *v, Bool filled, Bool empty, Bool invert, unsigned long col[ColLast]) {
607 XRectangle r = { dc.x, dc.y, dc.w, dc.h };
609 gcv.foreground = col[invert ? ColBG : ColFG];
610 XChangeGC(dpy, dc.gc, GCForeground, &gcv);
611 x = (dc.font.ascent + dc.font.descent + 2) / 4;
615 r.width = r.height = x + 1;
616 XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
619 r.width = r.height = x;
620 XDrawRectangles(dpy, dc.drawable, dc.gc, &r, 1);
625 drawtext(View *v, const char *text, unsigned long col[ColLast], Bool invert) {
627 static char buf[256];
628 unsigned int len, olen;
629 XRectangle r = { dc.x, dc.y, dc.w, dc.h };
631 XSetForeground(dpy, dc.gc, col[invert ? ColFG : ColBG]);
632 XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
636 olen = len = strlen(text);
637 if(len >= sizeof buf)
638 len = sizeof buf - 1;
639 memcpy(buf, text, len);
641 h = dc.font.ascent + dc.font.descent;
642 y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
644 /* shorten text if necessary */
645 while(len && (w = textnw(buf, len)) > dc.w - h)
656 return; /* too long */
657 XSetForeground(dpy, dc.gc, col[invert ? ColBG : ColFG]);
659 XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
661 XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
665 emallocz(unsigned int size) {
666 void *res = calloc(1, size);
669 eprint("fatal: could not malloc() %u bytes\n", size);
674 enternotify(XEvent *e) {
676 XCrossingEvent *ev = &e->xcrossing;
678 if(ev->mode != NotifyNormal || ev->detail == NotifyInferior) {
679 if(!isxinerama || ev->window != root)
682 if((c = getclient(ev->window)))
689 eprint(const char *errstr, ...) {
692 va_start(ap, errstr);
693 vfprintf(stderr, errstr, ap);
701 XExposeEvent *ev = &e->xexpose;
703 if(ev->count == 0 && (v = getviewbar(ev->window)))
708 floating(View *v) { /* default floating layout */
711 domwfact = dozoom = False;
712 for(c = clients; c; c = c->next)
714 resize(c, c->x, c->y, c->w, c->h, True);
721 selview = getview(c);
726 if(!c || (c && !isvisible(c)))
727 for(c = stack; c && !isvisible(c); c = c->snext);
728 if(sel && sel != c) {
729 grabbuttons(sel, False);
730 XSetWindowBorder(dpy, sel->win, dc.norm[ColBorder]);
735 grabbuttons(c, True);
739 XSetWindowBorder(dpy, c->win, dc.sel[ColBorder]);
740 XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
741 selview = getview(c);
744 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
749 focusin(XEvent *e) { /* there are some broken focus acquiring clients */
750 XFocusChangeEvent *ev = &e->xfocus;
752 if(sel && ev->window != sel->win)
753 XSetInputFocus(dpy, sel->win, RevertToPointerRoot, CurrentTime);
757 focusnext(const char *arg) {
762 for(c = sel->next; c && !isvisible(c); c = c->next);
764 for(c = clients; c && !isvisible(c); c = c->next);
772 focusprev(const char *arg) {
777 for(c = sel->prev; c && !isvisible(c); c = c->prev);
779 for(c = clients; c && c->next; c = c->next);
780 for(; c && !isvisible(c); c = c->prev);
789 getclient(Window w) {
792 for(c = clients; c && c->win != w; c = c->next);
797 getcolor(const char *colstr) {
798 Colormap cmap = DefaultColormap(dpy, screen);
801 if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
802 eprint("error, cannot allocate color '%s'\n", colstr);
807 getviewbar(Window barwin) {
810 for(i = 0; i < nviews; i++)
811 if(views[i].barwin == barwin)
820 for(i = 0; i < LENGTH(tags); i++)
822 return &views[c->tags[i] - 1];
823 return &views[0]; /* fallback */
830 unsigned char *p = NULL;
831 unsigned long n, extra;
834 status = XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState],
835 &real, &format, &n, &extra, (unsigned char **)&p);
836 if(status != Success)
845 gettextprop(Window w, Atom atom, char *text, unsigned int size) {
850 if(!text || size == 0)
853 XGetTextProperty(dpy, w, &name, atom);
856 if(name.encoding == XA_STRING)
857 strncpy(text, (char *)name.value, size - 1);
859 if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success
861 strncpy(text, *list, size - 1);
862 XFreeStringList(list);
865 text[size - 1] = '\0';
871 grabbuttons(Client *c, Bool focused) {
872 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
875 XGrabButton(dpy, Button1, MODKEY, c->win, False, BUTTONMASK,
876 GrabModeAsync, GrabModeSync, None, None);
877 XGrabButton(dpy, Button1, MODKEY|LockMask, c->win, False, BUTTONMASK,
878 GrabModeAsync, GrabModeSync, None, None);
879 XGrabButton(dpy, Button1, MODKEY|numlockmask, c->win, False, BUTTONMASK,
880 GrabModeAsync, GrabModeSync, None, None);
881 XGrabButton(dpy, Button1, MODKEY|numlockmask|LockMask, c->win, False, BUTTONMASK,
882 GrabModeAsync, GrabModeSync, None, None);
884 XGrabButton(dpy, Button2, MODKEY, c->win, False, BUTTONMASK,
885 GrabModeAsync, GrabModeSync, None, None);
886 XGrabButton(dpy, Button2, MODKEY|LockMask, c->win, False, BUTTONMASK,
887 GrabModeAsync, GrabModeSync, None, None);
888 XGrabButton(dpy, Button2, MODKEY|numlockmask, c->win, False, BUTTONMASK,
889 GrabModeAsync, GrabModeSync, None, None);
890 XGrabButton(dpy, Button2, MODKEY|numlockmask|LockMask, c->win, False, BUTTONMASK,
891 GrabModeAsync, GrabModeSync, None, None);
893 XGrabButton(dpy, Button3, MODKEY, c->win, False, BUTTONMASK,
894 GrabModeAsync, GrabModeSync, None, None);
895 XGrabButton(dpy, Button3, MODKEY|LockMask, c->win, False, BUTTONMASK,
896 GrabModeAsync, GrabModeSync, None, None);
897 XGrabButton(dpy, Button3, MODKEY|numlockmask, c->win, False, BUTTONMASK,
898 GrabModeAsync, GrabModeSync, None, None);
899 XGrabButton(dpy, Button3, MODKEY|numlockmask|LockMask, c->win, False, BUTTONMASK,
900 GrabModeAsync, GrabModeSync, None, None);
903 XGrabButton(dpy, AnyButton, AnyModifier, c->win, False, BUTTONMASK,
904 GrabModeAsync, GrabModeSync, None, None);
911 XModifierKeymap *modmap;
913 /* init modifier map */
914 modmap = XGetModifierMapping(dpy);
915 for(i = 0; i < 8; i++)
916 for(j = 0; j < modmap->max_keypermod; j++) {
917 if(modmap->modifiermap[i * modmap->max_keypermod + j] == XKeysymToKeycode(dpy, XK_Num_Lock))
918 numlockmask = (1 << i);
920 XFreeModifiermap(modmap);
922 XUngrabKey(dpy, AnyKey, AnyModifier, root);
923 for(i = 0; i < LENGTH(keys); i++) {
924 code = XKeysymToKeycode(dpy, keys[i].keysym);
925 XGrabKey(dpy, code, keys[i].mod, root, True,
926 GrabModeAsync, GrabModeAsync);
927 XGrabKey(dpy, code, keys[i].mod|LockMask, root, True,
928 GrabModeAsync, GrabModeAsync);
929 XGrabKey(dpy, code, keys[i].mod|numlockmask, root, True,
930 GrabModeAsync, GrabModeAsync);
931 XGrabKey(dpy, code, keys[i].mod|numlockmask|LockMask, root, True,
932 GrabModeAsync, GrabModeAsync);
937 idxoftag(const char *tag) {
940 for(i = 0; (i < LENGTH(tags)) && (tags[i] != tag); i++);
941 return (i < LENGTH(tags)) ? i : 0;
945 initfont(const char *fontstr) {
946 char *def, **missing;
951 XFreeFontSet(dpy, dc.font.set);
952 dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
955 fprintf(stderr, "dwm: missing fontset: %s\n", missing[n]);
956 XFreeStringList(missing);
959 XFontSetExtents *font_extents;
960 XFontStruct **xfonts;
962 dc.font.ascent = dc.font.descent = 0;
963 font_extents = XExtentsOfFontSet(dc.font.set);
964 n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
965 for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
966 if(dc.font.ascent < (*xfonts)->ascent)
967 dc.font.ascent = (*xfonts)->ascent;
968 if(dc.font.descent < (*xfonts)->descent)
969 dc.font.descent = (*xfonts)->descent;
975 XFreeFont(dpy, dc.font.xfont);
976 dc.font.xfont = NULL;
977 if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))
978 && !(dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
979 eprint("error, cannot load font: '%s'\n", fontstr);
980 dc.font.ascent = dc.font.xfont->ascent;
981 dc.font.descent = dc.font.xfont->descent;
983 dc.font.height = dc.font.ascent + dc.font.descent;
987 isoccupied(unsigned int t) {
990 for(c = clients; c; c = c->next)
997 isprotodel(Client *c) {
1002 if(XGetWMProtocols(dpy, c->win, &protocols, &n)) {
1003 for(i = 0; !ret && i < n; i++)
1004 if(protocols[i] == wmatom[WMDelete])
1012 isurgent(unsigned int t) {
1015 for(c = clients; c; c = c->next)
1016 if(c->isurgent && c->tags[t])
1022 isvisible(Client *c) {
1025 for(i = 0; i < LENGTH(tags); i++)
1026 if(c->tags[i] && seltags[i])
1032 keypress(XEvent *e) {
1038 keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
1039 for(i = 0; i < LENGTH(keys); i++)
1040 if(keysym == keys[i].keysym
1041 && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state))
1044 keys[i].func(keys[i].arg);
1049 killclient(const char *arg) {
1054 if(isprotodel(sel)) {
1055 ev.type = ClientMessage;
1056 ev.xclient.window = sel->win;
1057 ev.xclient.message_type = wmatom[WMProtocols];
1058 ev.xclient.format = 32;
1059 ev.xclient.data.l[0] = wmatom[WMDelete];
1060 ev.xclient.data.l[1] = CurrentTime;
1061 XSendEvent(dpy, sel->win, False, NoEventMask, &ev);
1064 XKillClient(dpy, sel->win);
1068 manage(Window w, XWindowAttributes *wa) {
1069 Client *c, *t = NULL;
1075 c = emallocz(sizeof(Client));
1076 c->tags = emallocz(sizeof initags);
1083 c->x = wa->x + v->x;
1084 c->y = wa->y + v->y;
1087 c->oldborder = wa->border_width;
1089 if(c->w == v->w && c->h == v->h) {
1092 c->border = wa->border_width;
1095 if(c->x + c->w + 2 * c->border > v->wax + v->waw)
1096 c->x = v->wax + v->waw - c->w - 2 * c->border;
1097 if(c->y + c->h + 2 * c->border > v->way + v->wah)
1098 c->y = v->way + v->wah - c->h - 2 * c->border;
1103 c->border = BORDERPX;
1105 wc.border_width = c->border;
1106 XConfigureWindow(dpy, w, CWBorderWidth, &wc);
1107 XSetWindowBorder(dpy, w, dc.norm[ColBorder]);
1108 configure(c); /* propagates border_width, if size doesn't change */
1110 XSelectInput(dpy, w, EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask);
1111 grabbuttons(c, False);
1113 if((rettrans = XGetTransientForHint(dpy, w, &trans) == Success))
1114 for(t = clients; t && t->win != trans; t = t->next);
1116 memcpy(c->tags, t->tags, sizeof initags);
1118 c->isfloating = (rettrans == Success) || c->isfixed;
1121 XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h); /* some windows require this */
1123 XMapWindow(dpy, c->win);
1124 setclientstate(c, NormalState);
1129 mappingnotify(XEvent *e) {
1130 XMappingEvent *ev = &e->xmapping;
1132 XRefreshKeyboardMapping(ev);
1133 if(ev->request == MappingKeyboard)
1138 maprequest(XEvent *e) {
1139 static XWindowAttributes wa;
1140 XMapRequestEvent *ev = &e->xmaprequest;
1142 if(!XGetWindowAttributes(dpy, ev->window, &wa))
1144 if(wa.override_redirect)
1146 if(!getclient(ev->window))
1147 manage(ev->window, &wa);
1156 XQueryPointer(dpy, root, &win, &win, &x, &y, &i, &i, &mask);
1157 for(i = 0; i < nviews; i++) {
1158 if((x >= views[i].x && x < views[i].x + views[i].w)
1159 && (y >= views[i].y && y < views[i].y + views[i].h)) {
1167 movemouse(Client *c) {
1168 int x1, y1, ocx, ocy, di, nx, ny;
1177 if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
1178 None, cursor[CurMove], CurrentTime) != GrabSuccess)
1180 XQueryPointer(dpy, root, &dummy, &dummy, &x1, &y1, &di, &di, &dui);
1182 XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
1185 XUngrabPointer(dpy, CurrentTime);
1187 case ConfigureRequest:
1190 handler[ev.type](&ev);
1194 nx = ocx + (ev.xmotion.x - x1);
1195 ny = ocy + (ev.xmotion.y - y1);
1196 if(abs(v->wax - nx) < SNAP)
1198 else if(abs((v->wax + v->waw) - (nx + c->w + 2 * c->border)) < SNAP)
1199 nx = v->wax + v->waw - c->w - 2 * c->border;
1200 if(abs(v->way - ny) < SNAP)
1202 else if(abs((v->way + v->wah) - (ny + c->h + 2 * c->border)) < SNAP)
1203 ny = v->way + v->wah - c->h - 2 * c->border;
1204 if(!c->isfloating && (v->layout->arrange != floating) && (abs(nx - c->x) > SNAP || abs(ny - c->y) > SNAP))
1205 togglefloating(NULL);
1206 if((v->layout->arrange == floating) || c->isfloating)
1207 resize(c, nx, ny, c->w, c->h, False);
1214 nexttiled(Client *c, View *v) {
1215 for(; c && (c->isfloating || getview(c) != v || !isvisible(c)); c = c->next);
1220 propertynotify(XEvent *e) {
1223 XPropertyEvent *ev = &e->xproperty;
1225 if(ev->state == PropertyDelete)
1226 return; /* ignore */
1227 if((c = getclient(ev->window))) {
1230 case XA_WM_TRANSIENT_FOR:
1231 XGetTransientForHint(dpy, c->win, &trans);
1232 if(!c->isfloating && (c->isfloating = (getclient(trans) != NULL)))
1235 case XA_WM_NORMAL_HINTS:
1240 drawbar(getview(c));
1243 if(ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
1252 quit(const char *arg) {
1253 readin = running = False;
1257 reapply(const char *arg) {
1258 static Bool zerotags[LENGTH(tags)] = { 0 };
1261 for(c = clients; c; c = c->next) {
1262 memcpy(c->tags, zerotags, sizeof zerotags);
1269 resize(Client *c, int x, int y, int w, int h, Bool sizehints) {
1275 /* set minimum possible */
1281 /* temporarily remove base dimensions */
1285 /* adjust for aspect limits */
1286 if (c->minay > 0 && c->maxay > 0 && c->minax > 0 && c->maxax > 0) {
1287 if (w * c->maxay > h * c->maxax)
1288 w = h * c->maxax / c->maxay;
1289 else if (w * c->minay < h * c->minax)
1290 h = w * c->minay / c->minax;
1293 /* adjust for increment value */
1299 /* restore base dimensions */
1303 if(c->minw > 0 && w < c->minw)
1305 if(c->minh > 0 && h < c->minh)
1307 if(c->maxw > 0 && w > c->maxw)
1309 if(c->maxh > 0 && h > c->maxh)
1312 if(w <= 0 || h <= 0)
1315 x = v->w - w - 2 * c->border;
1317 y = v->h - h - 2 * c->border;
1318 if(x + w + 2 * c->border < v->x)
1320 if(y + h + 2 * c->border < v->y)
1322 if(c->x != x || c->y != y || c->w != w || c->h != h) {
1325 c->w = wc.width = w;
1326 c->h = wc.height = h;
1327 wc.border_width = c->border;
1328 XConfigureWindow(dpy, c->win,
1329 CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc);
1336 resizemouse(Client *c) {
1345 if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
1346 None, cursor[CurResize], CurrentTime) != GrabSuccess)
1348 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->border - 1, c->h + c->border - 1);
1350 XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask , &ev);
1353 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0,
1354 c->w + c->border - 1, c->h + c->border - 1);
1355 XUngrabPointer(dpy, CurrentTime);
1356 while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
1358 case ConfigureRequest:
1361 handler[ev.type](&ev);
1365 if((nw = ev.xmotion.x - ocx - 2 * c->border + 1) <= 0)
1367 if((nh = ev.xmotion.y - ocy - 2 * c->border + 1) <= 0)
1369 if(!c->isfloating && (v->layout->arrange != floating) && (abs(nw - c->w) > SNAP || abs(nh - c->h) > SNAP))
1370 togglefloating(NULL);
1371 if((v->layout->arrange == floating) || c->isfloating)
1372 resize(c, c->x, c->y, nw, nh, True);
1387 if(sel->isfloating || (v->layout->arrange == floating))
1388 XRaiseWindow(dpy, sel->win);
1389 if(v->layout->arrange != floating) {
1390 wc.stack_mode = Below;
1391 wc.sibling = v->barwin;
1392 if(!sel->isfloating) {
1393 XConfigureWindow(dpy, sel->win, CWSibling|CWStackMode, &wc);
1394 wc.sibling = sel->win;
1396 for(c = nexttiled(clients, v); c; c = nexttiled(c->next, v)) {
1399 XConfigureWindow(dpy, c->win, CWSibling|CWStackMode, &wc);
1400 wc.sibling = c->win;
1404 while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
1410 char buf[sizeof stext];
1413 unsigned int len, offset;
1416 /* main event loop, also reads status text from stdin */
1418 xfd = ConnectionNumber(dpy);
1421 len = sizeof stext - 1;
1422 buf[len] = stext[len] = '\0'; /* 0-terminator is never touched */
1426 FD_SET(STDIN_FILENO, &rd);
1428 if(select(xfd + 1, &rd, NULL, NULL, NULL) == -1) {
1431 eprint("select failed\n");
1433 if(FD_ISSET(STDIN_FILENO, &rd)) {
1434 switch((r = read(STDIN_FILENO, buf + offset, len - offset))) {
1436 strncpy(stext, strerror(errno), len);
1440 strncpy(stext, "EOF", 4);
1444 for(p = buf + offset; r > 0; p++, r--, offset++)
1445 if(*p == '\n' || *p == '\0') {
1447 strncpy(stext, buf, len);
1448 p += r - 1; /* p is buf + offset + r - 1 */
1449 for(r = 0; *(p - r) && *(p - r) != '\n'; r++);
1452 memmove(buf, p - r + 1, r);
1459 while(XPending(dpy)) {
1460 XNextEvent(dpy, &ev);
1461 if(handler[ev.type])
1462 (handler[ev.type])(&ev); /* call handler */
1469 unsigned int i, num;
1470 Window *wins, d1, d2;
1471 XWindowAttributes wa;
1474 if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
1475 for(i = 0; i < num; i++) {
1476 if(!XGetWindowAttributes(dpy, wins[i], &wa)
1477 || wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
1479 if(wa.map_state == IsViewable || getstate(wins[i]) == IconicState)
1480 manage(wins[i], &wa);
1482 for(i = 0; i < num; i++) { /* now the transients */
1483 if(!XGetWindowAttributes(dpy, wins[i], &wa))
1485 if(XGetTransientForHint(dpy, wins[i], &d1)
1486 && (wa.map_state == IsViewable || getstate(wins[i]) == IconicState))
1487 manage(wins[i], &wa);
1495 setclientstate(Client *c, long state) {
1496 long data[] = {state, None};
1498 XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,
1499 PropModeReplace, (unsigned char *)data, 2);
1503 setlayout(const char *arg) {
1509 if(v->layout == &layouts[LENGTH(layouts)])
1510 v->layout = &layouts[0];
1513 for(i = 0; i < LENGTH(layouts); i++)
1514 if(!strcmp(arg, layouts[i].symbol))
1516 if(i == LENGTH(layouts))
1518 v->layout = &layouts[i];
1527 setmwfact(const char *arg) {
1534 /* arg handling, manipulate mwfact */
1537 else if(sscanf(arg, "%lf", &delta) == 1) {
1538 if(arg[0] == '+' || arg[0] == '-')
1544 else if(v->mwfact > 0.9)
1554 XSetWindowAttributes wa;
1555 XineramaScreenInfo *info = NULL;
1558 wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
1559 wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
1560 wmatom[WMName] = XInternAtom(dpy, "WM_NAME", False);
1561 wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);
1562 netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
1563 netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
1566 wa.cursor = cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
1567 cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
1568 cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
1570 if((isxinerama = XineramaIsActive(dpy)))
1571 info = XineramaQueryScreens(dpy, &nviews);
1572 #if defined(AIM_XINERAMA)
1574 nviews = 2; /* aim Xinerama */
1576 selview = views = emallocz(nviews * sizeof(View));
1578 screen = DefaultScreen(dpy);
1579 root = RootWindow(dpy, screen);
1581 /* init appearance */
1582 dc.norm[ColBorder] = getcolor(NORMBORDERCOLOR);
1583 dc.norm[ColBG] = getcolor(NORMBGCOLOR);
1584 dc.norm[ColFG] = getcolor(NORMFGCOLOR);
1585 dc.sel[ColBorder] = getcolor(SELBORDERCOLOR);
1586 dc.sel[ColBG] = getcolor(SELBGCOLOR);
1587 dc.sel[ColFG] = getcolor(SELFGCOLOR);
1589 dc.h = bh = dc.font.height + 2;
1590 dc.drawable = XCreatePixmap(dpy, root, DisplayWidth(dpy, screen), bh, DefaultDepth(dpy, screen));
1591 dc.gc = XCreateGC(dpy, root, 0, 0);
1592 XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
1594 XSetFont(dpy, dc.gc, dc.font.xfont->fid);
1596 for(blw = i = 0; i < LENGTH(layouts); i++) {
1597 i = textw(layouts[i].symbol);
1602 seltags = emallocz(sizeof initags);
1603 prevtags = emallocz(sizeof initags);
1604 memcpy(seltags, initags, sizeof initags);
1605 memcpy(prevtags, initags, sizeof initags);
1607 for(i = 0; i < nviews; i++) {
1612 if(nviews != 1 && isxinerama) {
1614 #if defined(AIM_XINERAMA)
1615 v->w = DisplayWidth(dpy, screen) / 2;
1616 v->x = (i == 0) ? 0 : v->w;
1618 v->h = DisplayHeight(dpy, screen);
1620 v->x = info[i].x_org;
1621 v->y = info[i].y_org;
1622 v->w = info[i].width;
1623 v->h = info[i].height;
1629 v->w = DisplayWidth(dpy, screen);
1630 v->h = DisplayHeight(dpy, screen);
1635 v->layout = &layouts[0];
1637 // TODO: bpos per screen?
1639 wa.override_redirect = 1;
1640 wa.background_pixmap = ParentRelative;
1641 wa.event_mask = ButtonPressMask|ExposureMask;
1644 v->barwin = XCreateWindow(dpy, root, v->x, v->y, v->w, bh, 0,
1645 DefaultDepth(dpy, screen), CopyFromParent, DefaultVisual(dpy, screen),
1646 CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
1647 XDefineCursor(dpy, v->barwin, cursor[CurNormal]);
1649 XMapRaised(dpy, v->barwin);
1650 strcpy(stext, "dwm-"VERSION);
1652 /* EWMH support per view */
1653 XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
1654 PropModeReplace, (unsigned char *) netatom, NetLast);
1656 /* select for events */
1657 wa.event_mask = SubstructureRedirectMask|SubstructureNotifyMask
1658 |EnterWindowMask|LeaveWindowMask|StructureNotifyMask;
1659 XChangeWindowAttributes(dpy, root, CWEventMask|CWCursor, &wa);
1660 XSelectInput(dpy, root, wa.event_mask);
1673 selview = &views[0];
1677 spawn(const char *arg) {
1678 static char *shell = NULL;
1680 if(!shell && !(shell = getenv("SHELL")))
1684 /* The double-fork construct avoids zombie processes and keeps the code
1685 * clean from stupid signal handlers. */
1689 close(ConnectionNumber(dpy));
1691 execl(shell, shell, "-c", arg, (char *)NULL);
1692 fprintf(stderr, "dwm: execl '%s -c %s'", shell, arg);
1701 tag(const char *arg) {
1706 for(i = 0; i < LENGTH(tags); i++)
1707 sel->tags[i] = (NULL == arg) ? selview->id : 0;
1708 sel->tags[idxoftag(arg)] = selview->id;
1713 textnw(const char *text, unsigned int len) {
1717 XmbTextExtents(dc.font.set, text, len, NULL, &r);
1720 return XTextWidth(dc.font.xfont, text, len);
1724 textw(const char *text) {
1725 return textnw(text, strlen(text)) + dc.font.height;
1730 unsigned int i, n, nx, ny, nw, nh, mw, th;
1733 domwfact = dozoom = True;
1737 for(n = 0, c = nexttiled(clients, v); c; c = nexttiled(c->next, v))
1741 mw = (n == 1) ? v->waw : v->mwfact * v->waw;
1742 th = (n > 1) ? v->wah / (n - 1) : 0;
1743 if(n > 1 && th < bh)
1746 for(i = 0, c = mc = nexttiled(clients, v); c; c = nexttiled(c->next, v)) {
1747 if(i == 0) { /* master */
1750 nw = mw - 2 * c->border;
1751 nh = v->wah - 2 * c->border;
1753 else { /* tile window */
1756 nx += mc->w + 2 * mc->border;
1757 nw = v->waw - mw - 2 * c->border;
1759 if(i + 1 == n) /* remainder */
1760 nh = (v->way + v->wah) - ny - 2 * c->border;
1762 nh = th - 2 * c->border;
1764 fprintf(stderr, "tile %d %d %d %d\n", nx, ny, nw, nh);
1765 resize(c, nx, ny, nw, nh, RESIZEHINTS);
1766 if((RESIZEHINTS) && ((c->h < bh) || (c->h > nh) || (c->w < bh) || (c->w > nw)))
1767 /* client doesn't accept size constraints */
1768 resize(c, nx, ny, nw, nh, False);
1769 if(n > 1 && th != v->wah)
1770 ny = c->y + c->h + 2 * c->border;
1776 togglebar(const char *arg) {
1778 bpos = (BARPOS == BarOff) ? BarTop : BARPOS;
1781 updatebarpos(selview);
1786 togglefloating(const char *arg) {
1789 sel->isfloating = !sel->isfloating;
1791 resize(sel, sel->x, sel->y, sel->w, sel->h, True);
1796 toggletag(const char *arg) {
1802 sel->tags[i] = !sel->tags[i];
1803 for(j = 0; j < LENGTH(tags) && !sel->tags[j]; j++);
1804 if(j == LENGTH(tags))
1805 sel->tags[i] = selview->id; /* at least one tag must be enabled */
1810 toggleview(const char *arg) {
1814 seltags[i] = !seltags[i];
1815 for(j = 0; j < LENGTH(tags) && !seltags[j]; j++);
1816 if(j == LENGTH(tags))
1817 seltags[i] = selview->id; /* at least one tag must be viewed */
1825 XMoveWindow(dpy, c->win, c->x, c->y);
1826 c->isbanned = False;
1830 unmanage(Client *c) {
1833 wc.border_width = c->oldborder;
1834 /* The server grab construct avoids race conditions. */
1836 XSetErrorHandler(xerrordummy);
1837 XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */
1842 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
1843 setclientstate(c, WithdrawnState);
1847 XSetErrorHandler(xerror);
1853 unmapnotify(XEvent *e) {
1855 XUnmapEvent *ev = &e->xunmap;
1857 if((c = getclient(ev->window)))
1862 updatebarpos(View *v) {
1873 XMoveWindow(dpy, v->barwin, v->x, v->y);
1877 XMoveWindow(dpy, v->barwin, v->x, v->y + v->wah);
1880 XMoveWindow(dpy, v->barwin, v->x, v->y - bh);
1884 while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
1888 updatesizehints(Client *c) {
1892 if(!XGetWMNormalHints(dpy, c->win, &size, &msize) || !size.flags)
1894 c->flags = size.flags;
1895 if(c->flags & PBaseSize) {
1896 c->basew = size.base_width;
1897 c->baseh = size.base_height;
1899 else if(c->flags & PMinSize) {
1900 c->basew = size.min_width;
1901 c->baseh = size.min_height;
1904 c->basew = c->baseh = 0;
1905 if(c->flags & PResizeInc) {
1906 c->incw = size.width_inc;
1907 c->inch = size.height_inc;
1910 c->incw = c->inch = 0;
1911 if(c->flags & PMaxSize) {
1912 c->maxw = size.max_width;
1913 c->maxh = size.max_height;
1916 c->maxw = c->maxh = 0;
1917 if(c->flags & PMinSize) {
1918 c->minw = size.min_width;
1919 c->minh = size.min_height;
1921 else if(c->flags & PBaseSize) {
1922 c->minw = size.base_width;
1923 c->minh = size.base_height;
1926 c->minw = c->minh = 0;
1927 if(c->flags & PAspect) {
1928 c->minax = size.min_aspect.x;
1929 c->maxax = size.max_aspect.x;
1930 c->minay = size.min_aspect.y;
1931 c->maxay = size.max_aspect.y;
1934 c->minax = c->maxax = c->minay = c->maxay = 0;
1935 c->isfixed = (c->maxw && c->minw && c->maxh && c->minh
1936 && c->maxw == c->minw && c->maxh == c->minh);
1940 updatetitle(Client *c) {
1941 if(!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
1942 gettextprop(c->win, wmatom[WMName], c->name, sizeof c->name);
1946 updatewmhints(Client *c) {
1949 if((wmh = XGetWMHints(dpy, c->win))) {
1950 c->isurgent = (wmh->flags & XUrgencyHint) ? True : False;
1955 /* There's no way to check accesses to destroyed windows, thus those cases are
1956 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
1957 * default error handler, which may call exit. */
1959 xerror(Display *dpy, XErrorEvent *ee) {
1960 if(ee->error_code == BadWindow
1961 || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
1962 || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
1963 || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
1964 || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
1965 || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
1966 || (ee->request_code == X_GrabKey && ee->error_code == BadAccess)
1967 || (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
1969 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
1970 ee->request_code, ee->error_code);
1971 return xerrorxlib(dpy, ee); /* may call exit */
1975 xerrordummy(Display *dpy, XErrorEvent *ee) {
1979 /* Startup Error handler to check if another window manager
1980 * is already running. */
1982 xerrorstart(Display *dpy, XErrorEvent *ee) {
1988 view(const char *arg) {
1990 int tmp[LENGTH(tags)];
1992 for(i = 0; i < LENGTH(tags); i++)
1993 tmp[i] = (NULL == arg) ? selview->id : 0;
1994 tmp[idxoftag(arg)] = selview->id;
1995 if(memcmp(seltags, tmp, sizeof initags) != 0) {
1996 memcpy(prevtags, seltags, sizeof initags);
1997 memcpy(seltags, tmp, sizeof initags);
2003 viewprevtag(const char *arg) {
2004 static Bool tmp[LENGTH(tags)];
2006 memcpy(tmp, seltags, sizeof initags);
2007 memcpy(seltags, prevtags, sizeof initags);
2008 memcpy(prevtags, tmp, sizeof initags);
2013 zoom(const char *arg) {
2016 if(!sel || !dozoom || sel->isfloating)
2018 if(c == nexttiled(clients, getview(c)))
2019 if(!(c = nexttiled(c->next, getview(c))))
2028 selectview(const char *arg) {
2036 v = &views[i % nviews];
2037 XWarpPointer(dpy, None, root, 0, 0, 0, 0, v->wax+v->waw/2, v->way+v->wah/2);
2043 main(int argc, char *argv[]) {
2044 if(argc == 2 && !strcmp("-v", argv[1]))
2045 eprint("dwm-"VERSION", © 2006-2008 dwm engineers, see LICENSE for details\n");
2047 eprint("usage: dwm [-v]\n");
2049 setlocale(LC_CTYPE, "");
2050 if(!(dpy = XOpenDisplay(0)))
2051 eprint("dwm: cannot open display\n");