1 /* See LICENSE file for copyright and license details.
3 * dynamic window manager is designed like any other X client as well. It is
4 * driven through handling X events. In contrast to other X clients, a window
5 * manager selects for SubstructureRedirectMask on the root window, to receive
6 * events about window (dis-)appearance. Only one X connection at a time is
7 * allowed to select for this event mask.
9 * The event handlers of dwm are organized in an array which is accessed
10 * whenever a new event has been fetched. This allows event dispatching
13 * Each child of the root window is called a client, except windows which have
14 * set the override_redirect flag. Clients are organized in a linked client
15 * list on each monitor, the focus history is remembered through a stack list
16 * on each monitor. Each client contains a bit array to indicate the tags of a
19 * Keys and tagging rules are organized as arrays and defined in config.h.
21 * To understand everything else, start reading main().
31 #include <sys/types.h>
33 #include <X11/cursorfont.h>
34 #include <X11/keysym.h>
35 #include <X11/Xatom.h>
37 #include <X11/Xproto.h>
38 #include <X11/Xutil.h>
40 #include <X11/extensions/Xinerama.h>
47 #define BUTTONMASK (ButtonPressMask|ButtonReleaseMask)
48 #define CLEANMASK(mask) (mask & ~(numlockmask|LockMask) & (ShiftMask|ControlMask|Mod1Mask|Mod2Mask|Mod3Mask|Mod4Mask|Mod5Mask))
49 #define INTERSECT(x,y,w,h,m) (MAX(0, MIN((x)+(w),(m)->wx+(m)->ww) - MAX((x),(m)->wx)) \
50 * MAX(0, MIN((y)+(h),(m)->wy+(m)->wh) - MAX((y),(m)->wy)))
51 #define ISVISIBLE(C) ((C->tags & C->mon->tagset[C->mon->seltags]))
52 #define LENGTH(X) (sizeof X / sizeof X[0])
53 #define MOUSEMASK (BUTTONMASK|PointerMotionMask)
54 #define WIDTH(X) ((X)->w + 2 * (X)->bw)
55 #define HEIGHT(X) ((X)->h + 2 * (X)->bw)
56 #define TAGMASK ((1 << LENGTH(tags)) - 1)
57 #define TEXTW(X) (drw_font_getexts_width(drw->font, X, strlen(X)) + drw->font->h)
60 enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
61 enum { ColBorder, ColFG, ColBG, ColLast }; /* color */
62 enum { NetSupported, NetWMName, NetWMState,
63 NetWMFullscreen, NetActiveWindow, NetWMWindowType,
64 NetWMWindowTypeDialog, NetClientList, NetLast }; /* EWMH atoms */
65 enum { WMProtocols, WMDelete, WMState, WMTakeFocus, WMLast }; /* default atoms */
66 enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle,
67 ClkClientWin, ClkRootWin, ClkLast }; /* clicks */
80 void (*func)(const Arg *arg);
84 typedef struct Monitor Monitor;
85 typedef struct Client Client;
90 int oldx, oldy, oldw, oldh;
91 int basew, baseh, incw, inch, maxw, maxh, minw, minh;
94 Bool isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen;
104 void (*func)(const Arg *);
110 void (*arrange)(Monitor *);
118 int by; /* bar geometry */
119 int mx, my, mw, mh; /* screen size */
120 int wx, wy, ww, wh; /* window area */
121 unsigned int seltags;
123 unsigned int tagset[2];
136 const char *instance;
143 /* function declarations */
144 static void applyrules(Client *c);
145 static Bool applysizehints(Client *c, int *x, int *y, int *w, int *h, Bool interact);
146 static void arrange(Monitor *m);
147 static void arrangemon(Monitor *m);
148 static void attach(Client *c);
149 static void attachstack(Client *c);
150 static void buttonpress(XEvent *e);
151 static void checkotherwm(void);
152 static void cleanup(void);
153 static void cleanupmon(Monitor *mon);
154 static void clearurgent(Client *c);
155 static void clientmessage(XEvent *e);
156 static void configure(Client *c);
157 static void configurenotify(XEvent *e);
158 static void configurerequest(XEvent *e);
159 static Monitor *createmon(void);
160 static void destroynotify(XEvent *e);
161 static void detach(Client *c);
162 static void detachstack(Client *c);
163 static Monitor *dirtomon(int dir);
164 static void drawbar(Monitor *m);
165 static void drawbars(void);
166 static void enternotify(XEvent *e);
167 static void expose(XEvent *e);
168 static void focus(Client *c);
169 static void focusin(XEvent *e);
170 static void focusmon(const Arg *arg);
171 static void focusstack(const Arg *arg);
172 static Bool getrootptr(int *x, int *y);
173 static long getstate(Window w);
174 static Bool gettextprop(Window w, Atom atom, char *text, unsigned int size);
175 static void grabbuttons(Client *c, Bool focused);
176 static void grabkeys(void);
177 static void incnmaster(const Arg *arg);
178 static void keypress(XEvent *e);
179 static void killclient(const Arg *arg);
180 static void manage(Window w, XWindowAttributes *wa);
181 static void mappingnotify(XEvent *e);
182 static void maprequest(XEvent *e);
183 static void monocle(Monitor *m);
184 static void motionnotify(XEvent *e);
185 static void movemouse(const Arg *arg);
186 static Client *nexttiled(Client *c);
187 static void pop(Client *);
188 static void propertynotify(XEvent *e);
189 static void quit(const Arg *arg);
190 static Monitor *recttomon(int x, int y, int w, int h);
191 static void resize(Client *c, int x, int y, int w, int h, Bool interact);
192 static void resizeclient(Client *c, int x, int y, int w, int h);
193 static void resizemouse(const Arg *arg);
194 static void restack(Monitor *m);
195 static void run(void);
196 static void scan(void);
197 static Bool sendevent(Client *c, Atom proto);
198 static void sendmon(Client *c, Monitor *m);
199 static void setclientstate(Client *c, long state);
200 static void setfocus(Client *c);
201 static void setfullscreen(Client *c, Bool fullscreen);
202 static void setlayout(const Arg *arg);
203 static void setmfact(const Arg *arg);
204 static void setup(void);
205 static void showhide(Client *c);
206 static void sigchld(int unused);
207 static void spawn(const Arg *arg);
208 static void tag(const Arg *arg);
209 static void tagmon(const Arg *arg);
210 static void tile(Monitor *);
211 static void togglebar(const Arg *arg);
212 static void togglefloating(const Arg *arg);
213 static void toggletag(const Arg *arg);
214 static void toggleview(const Arg *arg);
215 static void unfocus(Client *c, Bool setfocus);
216 static void unmanage(Client *c, Bool destroyed);
217 static void unmapnotify(XEvent *e);
218 static Bool updategeom(void);
219 static void updatebarpos(Monitor *m);
220 static void updatebars(void);
221 static void updateclientlist(void);
222 static void updatenumlockmask(void);
223 static void updatesizehints(Client *c);
224 static void updatestatus(void);
225 static void updatewindowtype(Client *c);
226 static void updatetitle(Client *c);
227 static void updatewmhints(Client *c);
228 static void view(const Arg *arg);
229 static Client *wintoclient(Window w);
230 static Monitor *wintomon(Window w);
231 static int xerror(Display *dpy, XErrorEvent *ee);
232 static int xerrordummy(Display *dpy, XErrorEvent *ee);
233 static int xerrorstart(Display *dpy, XErrorEvent *ee);
234 static void zoom(const Arg *arg);
237 static const char broken[] = "broken";
238 static char stext[256];
240 static int sw, sh; /* X display screen geometry width, height */
241 static int bh, blw = 0; /* bar geometry */
242 static int (*xerrorxlib)(Display *, XErrorEvent *);
243 static unsigned int numlockmask = 0;
244 static void (*handler[LASTEvent]) (XEvent *) = {
245 [ButtonPress] = buttonpress,
246 [ClientMessage] = clientmessage,
247 [ConfigureRequest] = configurerequest,
248 [ConfigureNotify] = configurenotify,
249 [DestroyNotify] = destroynotify,
250 [EnterNotify] = enternotify,
253 [KeyPress] = keypress,
254 [MappingNotify] = mappingnotify,
255 [MapRequest] = maprequest,
256 [MotionNotify] = motionnotify,
257 [PropertyNotify] = propertynotify,
258 [UnmapNotify] = unmapnotify
260 static Atom wmatom[WMLast], netatom[NetLast];
261 static Bool running = True;
262 static Cur *cursor[CurLast];
263 static Theme thmnorm[ColLast];
264 static Theme thmsel[ColLast];
268 static Monitor *mons, *selmon;
271 /* configuration, allows nested code to access above variables */
274 /* compile-time check if all tags fit into an unsigned int bit array. */
275 struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; };
277 /* function implementations */
279 applyrules(Client *c) {
280 const char *class, *instance;
284 XClassHint ch = { NULL, NULL };
287 c->isfloating = c->tags = 0;
288 XGetClassHint(dpy, c->win, &ch);
289 class = ch.res_class ? ch.res_class : broken;
290 instance = ch.res_name ? ch.res_name : broken;
292 for(i = 0; i < LENGTH(rules); i++) {
294 if((!r->title || strstr(c->name, r->title))
295 && (!r->class || strstr(class, r->class))
296 && (!r->instance || strstr(instance, r->instance)))
298 c->isfloating = r->isfloating;
300 for(m = mons; m && m->num != r->monitor; m = m->next);
309 c->tags = c->tags & TAGMASK ? c->tags & TAGMASK : c->mon->tagset[c->mon->seltags];
313 applysizehints(Client *c, int *x, int *y, int *w, int *h, Bool interact) {
317 /* set minimum possible */
325 if(*x + *w + 2 * c->bw < 0)
327 if(*y + *h + 2 * c->bw < 0)
331 if(*x >= m->wx + m->ww)
332 *x = m->wx + m->ww - WIDTH(c);
333 if(*y >= m->wy + m->wh)
334 *y = m->wy + m->wh - HEIGHT(c);
335 if(*x + *w + 2 * c->bw <= m->wx)
337 if(*y + *h + 2 * c->bw <= m->wy)
344 if(resizehints || c->isfloating || !c->mon->lt[c->mon->sellt]->arrange) {
345 /* see last two sentences in ICCCM 4.1.2.3 */
346 baseismin = c->basew == c->minw && c->baseh == c->minh;
347 if(!baseismin) { /* temporarily remove base dimensions */
351 /* adjust for aspect limits */
352 if(c->mina > 0 && c->maxa > 0) {
353 if(c->maxa < (float)*w / *h)
354 *w = *h * c->maxa + 0.5;
355 else if(c->mina < (float)*h / *w)
356 *h = *w * c->mina + 0.5;
358 if(baseismin) { /* increment calculation requires this */
362 /* adjust for increment value */
367 /* restore base dimensions */
368 *w = MAX(*w + c->basew, c->minw);
369 *h = MAX(*h + c->baseh, c->minh);
371 *w = MIN(*w, c->maxw);
373 *h = MIN(*h, c->maxh);
375 return *x != c->x || *y != c->y || *w != c->w || *h != c->h;
379 arrange(Monitor *m) {
382 else for(m = mons; m; m = m->next)
387 } else for(m = mons; m; m = m->next)
392 arrangemon(Monitor *m) {
393 strncpy(m->ltsymbol, m->lt[m->sellt]->symbol, sizeof m->ltsymbol);
394 if(m->lt[m->sellt]->arrange)
395 m->lt[m->sellt]->arrange(m);
400 c->next = c->mon->clients;
405 attachstack(Client *c) {
406 c->snext = c->mon->stack;
411 buttonpress(XEvent *e) {
412 unsigned int i, x, click;
416 XButtonPressedEvent *ev = &e->xbutton;
419 /* focus monitor if necessary */
420 if((m = wintomon(ev->window)) && m != selmon) {
421 unfocus(selmon->sel, True);
425 if(ev->window == selmon->barwin) {
429 while(ev->x >= x && ++i < LENGTH(tags));
430 if(i < LENGTH(tags)) {
434 else if(ev->x < x + blw)
436 else if(ev->x > selmon->ww - TEXTW(stext))
437 click = ClkStatusText;
441 else if((c = wintoclient(ev->window))) {
443 click = ClkClientWin;
445 for(i = 0; i < LENGTH(buttons); i++)
446 if(click == buttons[i].click && buttons[i].func && buttons[i].button == ev->button
447 && CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
448 buttons[i].func(click == ClkTagBar && buttons[i].arg.i == 0 ? &arg : &buttons[i].arg);
453 xerrorxlib = XSetErrorHandler(xerrorstart);
454 /* this causes an error if some other window manager is running */
455 XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask);
457 XSetErrorHandler(xerror);
464 Layout foo = { "", NULL };
468 selmon->lt[selmon->sellt] = &foo;
469 for(m = mons; m; m = m->next)
471 unmanage(m->stack, False);
472 XUngrabKey(dpy, AnyKey, AnyModifier, root);
475 drw_cur_free(drw, cursor[CurNormal]);
476 drw_cur_free(drw, cursor[CurResize]);
477 drw_cur_free(drw, cursor[CurMove]);
478 drw_font_free(dpy, fnt);
479 drw_clr_free(thmnorm->border);
480 drw_clr_free(thmnorm->bg);
481 drw_clr_free(thmnorm->fg);
482 drw_clr_free(thmsel->border);
483 drw_clr_free(thmsel->bg);
484 drw_clr_free(thmsel->fg);
487 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
488 XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
492 cleanupmon(Monitor *mon) {
498 for(m = mons; m && m->next != mon; m = m->next);
501 XUnmapWindow(dpy, mon->barwin);
502 XDestroyWindow(dpy, mon->barwin);
507 clearurgent(Client *c) {
511 if(!(wmh = XGetWMHints(dpy, c->win)))
513 wmh->flags &= ~XUrgencyHint;
514 XSetWMHints(dpy, c->win, wmh);
519 clientmessage(XEvent *e) {
520 XClientMessageEvent *cme = &e->xclient;
521 Client *c = wintoclient(cme->window);
525 if(cme->message_type == netatom[NetWMState]) {
526 if(cme->data.l[1] == netatom[NetWMFullscreen] || cme->data.l[2] == netatom[NetWMFullscreen])
527 setfullscreen(c, (cme->data.l[0] == 1 /* _NET_WM_STATE_ADD */
528 || (cme->data.l[0] == 2 /* _NET_WM_STATE_TOGGLE */ && !c->isfullscreen)));
530 else if(cme->message_type == netatom[NetActiveWindow]) {
532 c->mon->seltags ^= 1;
533 c->mon->tagset[c->mon->seltags] = c->tags;
540 configure(Client *c) {
543 ce.type = ConfigureNotify;
551 ce.border_width = c->bw;
553 ce.override_redirect = False;
554 XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce);
558 configurenotify(XEvent *e) {
560 XConfigureEvent *ev = &e->xconfigure;
563 // TODO: updategeom handling sucks, needs to be simplified
564 if(ev->window == root) {
565 dirty = (sw != ev->width || sh != ev->height);
568 if(updategeom() || dirty) {
569 drw_resize(drw, sw, bh);
571 for(m = mons; m; m = m->next)
572 XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, m->ww, bh);
580 configurerequest(XEvent *e) {
583 XConfigureRequestEvent *ev = &e->xconfigurerequest;
586 if((c = wintoclient(ev->window))) {
587 if(ev->value_mask & CWBorderWidth)
588 c->bw = ev->border_width;
589 else if(c->isfloating || !selmon->lt[selmon->sellt]->arrange) {
591 if(ev->value_mask & CWX) {
593 c->x = m->mx + ev->x;
595 if(ev->value_mask & CWY) {
597 c->y = m->my + ev->y;
599 if(ev->value_mask & CWWidth) {
603 if(ev->value_mask & CWHeight) {
607 if((c->x + c->w) > m->mx + m->mw && c->isfloating)
608 c->x = m->mx + (m->mw / 2 - WIDTH(c) / 2); /* center in x direction */
609 if((c->y + c->h) > m->my + m->mh && c->isfloating)
610 c->y = m->my + (m->mh / 2 - HEIGHT(c) / 2); /* center in y direction */
611 if((ev->value_mask & (CWX|CWY)) && !(ev->value_mask & (CWWidth|CWHeight)))
614 XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
622 wc.width = ev->width;
623 wc.height = ev->height;
624 wc.border_width = ev->border_width;
625 wc.sibling = ev->above;
626 wc.stack_mode = ev->detail;
627 XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
636 if(!(m = (Monitor *)calloc(1, sizeof(Monitor))))
637 die("fatal: could not malloc() %u bytes\n", sizeof(Monitor));
638 m->tagset[0] = m->tagset[1] = 1;
640 m->nmaster = nmaster;
641 m->showbar = showbar;
643 m->lt[0] = &layouts[0];
644 m->lt[1] = &layouts[1 % LENGTH(layouts)];
645 strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol);
650 destroynotify(XEvent *e) {
652 XDestroyWindowEvent *ev = &e->xdestroywindow;
654 if((c = wintoclient(ev->window)))
662 for(tc = &c->mon->clients; *tc && *tc != c; tc = &(*tc)->next);
667 detachstack(Client *c) {
670 for(tc = &c->mon->stack; *tc && *tc != c; tc = &(*tc)->snext);
673 if(c == c->mon->sel) {
674 for(t = c->mon->stack; t && !ISVISIBLE(t); t = t->snext);
684 if(!(m = selmon->next))
687 else if(selmon == mons)
688 for(m = mons; m->next; m = m->next);
690 for(m = mons; m->next != selmon; m = m->next);
695 drawbar(Monitor *m) {
697 unsigned int i, occ = 0, urg = 0;
700 for(c = m->clients; c; c = c->next) {
706 for(i = 0; i < LENGTH(tags); i++) {
708 drw_settheme(drw, m->tagset[m->seltags] & 1 << i ? thmsel : thmnorm);
709 drw_text(drw, x, 0, w, bh, tags[i], urg & 1 << i);
710 drw_rect(drw, x, 0, w, bh, m == selmon && selmon->sel && selmon->sel->tags & 1 << i,
711 occ & 1 << i, urg & 1 << i);
714 w = blw = TEXTW(m->ltsymbol);
715 drw_settheme(drw, thmnorm);
716 drw_text(drw, x, 0, w, bh, m->ltsymbol, 0);
719 if(m == selmon) { /* status is only drawn on selected monitor */
726 drw_text(drw, x, 0, w, bh, stext, 0);
730 if((w = x - xx) > bh) {
733 drw_settheme(drw, m == selmon ? thmsel : thmnorm);
734 drw_text(drw, x, 0, w, bh, m->sel->name, 0);
735 drw_rect(drw, x, 0, w, bh, m->sel->isfixed, m->sel->isfloating, 0);
738 drw_settheme(drw, thmnorm);
739 drw_text(drw, x, 0, w, bh, NULL, 0);
742 drw_map(drw, m->barwin, 0, 0, m->ww, bh);
749 for(m = mons; m; m = m->next)
754 enternotify(XEvent *e) {
757 XCrossingEvent *ev = &e->xcrossing;
759 if((ev->mode != NotifyNormal || ev->detail == NotifyInferior) && ev->window != root)
761 c = wintoclient(ev->window);
762 m = c ? c->mon : wintomon(ev->window);
764 unfocus(selmon->sel, True);
767 else if(!c || c == selmon->sel)
775 XExposeEvent *ev = &e->xexpose;
777 if(ev->count == 0 && (m = wintomon(ev->window)))
783 if(!c || !ISVISIBLE(c))
784 for(c = selmon->stack; c && !ISVISIBLE(c); c = c->snext);
785 /* was if(selmon->sel) */
786 if(selmon->sel && selmon->sel != c)
787 unfocus(selmon->sel, False);
795 grabbuttons(c, True);
796 XSetWindowBorder(dpy, c->win, thmsel->border->rgb);
800 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
801 XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
808 focusin(XEvent *e) { /* there are some broken focus acquiring clients */
809 XFocusChangeEvent *ev = &e->xfocus;
811 if(selmon->sel && ev->window != selmon->sel->win)
812 setfocus(selmon->sel);
816 focusmon(const Arg *arg) {
821 if((m = dirtomon(arg->i)) == selmon)
823 unfocus(selmon->sel, False); /* s/True/False/ fixes input focus issues
824 in gedit and anjuta */
830 focusstack(const Arg *arg) {
831 Client *c = NULL, *i;
836 for(c = selmon->sel->next; c && !ISVISIBLE(c); c = c->next);
838 for(c = selmon->clients; c && !ISVISIBLE(c); c = c->next);
841 for(i = selmon->clients; i != selmon->sel; i = i->next)
845 for(; i; i = i->next)
856 getatomprop(Client *c, Atom prop) {
859 unsigned char *p = NULL;
860 Atom da, atom = None;
862 if(XGetWindowProperty(dpy, c->win, prop, 0L, sizeof atom, False, XA_ATOM,
863 &da, &di, &dl, &dl, &p) == Success && p) {
871 getrootptr(int *x, int *y) {
876 return XQueryPointer(dpy, root, &dummy, &dummy, x, y, &di, &di, &dui);
883 unsigned char *p = NULL;
884 unsigned long n, extra;
887 if(XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState],
888 &real, &format, &n, &extra, (unsigned char **)&p) != Success)
897 gettextprop(Window w, Atom atom, char *text, unsigned int size) {
902 if(!text || size == 0)
905 XGetTextProperty(dpy, w, &name, atom);
908 if(name.encoding == XA_STRING)
909 strncpy(text, (char *)name.value, size - 1);
911 if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success && n > 0 && *list) {
912 strncpy(text, *list, size - 1);
913 XFreeStringList(list);
916 text[size - 1] = '\0';
922 grabbuttons(Client *c, Bool focused) {
926 unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
927 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
929 for(i = 0; i < LENGTH(buttons); i++)
930 if(buttons[i].click == ClkClientWin)
931 for(j = 0; j < LENGTH(modifiers); j++)
932 XGrabButton(dpy, buttons[i].button,
933 buttons[i].mask | modifiers[j],
934 c->win, False, BUTTONMASK,
935 GrabModeAsync, GrabModeSync, None, None);
938 XGrabButton(dpy, AnyButton, AnyModifier, c->win, False,
939 BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
948 unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
951 XUngrabKey(dpy, AnyKey, AnyModifier, root);
952 for(i = 0; i < LENGTH(keys); i++)
953 if((code = XKeysymToKeycode(dpy, keys[i].keysym)))
954 for(j = 0; j < LENGTH(modifiers); j++)
955 XGrabKey(dpy, code, keys[i].mod | modifiers[j], root,
956 True, GrabModeAsync, GrabModeAsync);
961 incnmaster(const Arg *arg) {
962 selmon->nmaster = MAX(selmon->nmaster + arg->i, 0);
968 isuniquegeom(XineramaScreenInfo *unique, size_t n, XineramaScreenInfo *info) {
970 if(unique[n].x_org == info->x_org && unique[n].y_org == info->y_org
971 && unique[n].width == info->width && unique[n].height == info->height)
975 #endif /* XINERAMA */
978 keypress(XEvent *e) {
984 keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
985 for(i = 0; i < LENGTH(keys); i++)
986 if(keysym == keys[i].keysym
987 && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
989 keys[i].func(&(keys[i].arg));
993 killclient(const Arg *arg) {
996 if(!sendevent(selmon->sel, wmatom[WMDelete])) {
998 XSetErrorHandler(xerrordummy);
999 XSetCloseDownMode(dpy, DestroyAll);
1000 XKillClient(dpy, selmon->sel->win);
1002 XSetErrorHandler(xerror);
1008 manage(Window w, XWindowAttributes *wa) {
1009 Client *c, *t = NULL;
1010 Window trans = None;
1013 if(!(c = calloc(1, sizeof(Client))))
1014 die("fatal: could not malloc() %u bytes\n", sizeof(Client));
1017 if(XGetTransientForHint(dpy, w, &trans) && (t = wintoclient(trans))) {
1026 c->x = c->oldx = wa->x;
1027 c->y = c->oldy = wa->y;
1028 c->w = c->oldw = wa->width;
1029 c->h = c->oldh = wa->height;
1030 c->oldbw = wa->border_width;
1032 if(c->x + WIDTH(c) > c->mon->mx + c->mon->mw)
1033 c->x = c->mon->mx + c->mon->mw - WIDTH(c);
1034 if(c->y + HEIGHT(c) > c->mon->my + c->mon->mh)
1035 c->y = c->mon->my + c->mon->mh - HEIGHT(c);
1036 c->x = MAX(c->x, c->mon->mx);
1037 /* only fix client y-offset, if the client center might cover the bar */
1038 c->y = MAX(c->y, ((c->mon->by == c->mon->my) && (c->x + (c->w / 2) >= c->mon->wx)
1039 && (c->x + (c->w / 2) < c->mon->wx + c->mon->ww)) ? bh : c->mon->my);
1042 wc.border_width = c->bw;
1043 XConfigureWindow(dpy, w, CWBorderWidth, &wc);
1044 XSetWindowBorder(dpy, w, thmnorm->border->rgb);
1045 configure(c); /* propagates border_width, if size doesn't change */
1046 updatewindowtype(c);
1049 XSelectInput(dpy, w, EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask);
1050 grabbuttons(c, False);
1052 c->isfloating = c->oldstate = trans != None || c->isfixed;
1054 XRaiseWindow(dpy, c->win);
1057 XChangeProperty(dpy, root, netatom[NetClientList], XA_WINDOW, 32, PropModeAppend,
1058 (unsigned char *) &(c->win), 1);
1059 XMoveResizeWindow(dpy, c->win, c->x + 2 * sw, c->y, c->w, c->h); /* some windows require this */
1060 setclientstate(c, NormalState);
1061 if (c->mon == selmon)
1062 unfocus(selmon->sel, False);
1065 XMapWindow(dpy, c->win);
1070 mappingnotify(XEvent *e) {
1071 XMappingEvent *ev = &e->xmapping;
1073 XRefreshKeyboardMapping(ev);
1074 if(ev->request == MappingKeyboard)
1079 maprequest(XEvent *e) {
1080 static XWindowAttributes wa;
1081 XMapRequestEvent *ev = &e->xmaprequest;
1083 if(!XGetWindowAttributes(dpy, ev->window, &wa))
1085 if(wa.override_redirect)
1087 if(!wintoclient(ev->window))
1088 manage(ev->window, &wa);
1092 monocle(Monitor *m) {
1096 for(c = m->clients; c; c = c->next)
1099 if(n > 0) /* override layout symbol */
1100 snprintf(m->ltsymbol, sizeof m->ltsymbol, "[%d]", n);
1101 for(c = nexttiled(m->clients); c; c = nexttiled(c->next))
1102 resize(c, m->wx, m->wy, m->ww - 2 * c->bw, m->wh - 2 * c->bw, False);
1106 motionnotify(XEvent *e) {
1107 static Monitor *mon = NULL;
1109 XMotionEvent *ev = &e->xmotion;
1111 if(ev->window != root)
1113 if((m = recttomon(ev->x_root, ev->y_root, 1, 1)) != mon && mon) {
1114 unfocus(selmon->sel, True);
1122 movemouse(const Arg *arg) {
1123 int x, y, ocx, ocy, nx, ny;
1128 if(!(c = selmon->sel))
1130 if(c->isfullscreen) /* no support moving fullscreen windows by mouse */
1135 if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
1136 None, cursor[CurMove]->cursor, CurrentTime) != GrabSuccess)
1138 if(!getrootptr(&x, &y))
1141 XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
1143 case ConfigureRequest:
1146 handler[ev.type](&ev);
1149 nx = ocx + (ev.xmotion.x - x);
1150 ny = ocy + (ev.xmotion.y - y);
1151 if(nx >= selmon->wx && nx <= selmon->wx + selmon->ww
1152 && ny >= selmon->wy && ny <= selmon->wy + selmon->wh) {
1153 if(abs(selmon->wx - nx) < snap)
1155 else if(abs((selmon->wx + selmon->ww) - (nx + WIDTH(c))) < snap)
1156 nx = selmon->wx + selmon->ww - WIDTH(c);
1157 if(abs(selmon->wy - ny) < snap)
1159 else if(abs((selmon->wy + selmon->wh) - (ny + HEIGHT(c))) < snap)
1160 ny = selmon->wy + selmon->wh - HEIGHT(c);
1161 if(!c->isfloating && selmon->lt[selmon->sellt]->arrange
1162 && (abs(nx - c->x) > snap || abs(ny - c->y) > snap))
1163 togglefloating(NULL);
1165 if(!selmon->lt[selmon->sellt]->arrange || c->isfloating)
1166 resize(c, nx, ny, c->w, c->h, True);
1169 } while(ev.type != ButtonRelease);
1170 XUngrabPointer(dpy, CurrentTime);
1171 if((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) {
1179 nexttiled(Client *c) {
1180 for(; c && (c->isfloating || !ISVISIBLE(c)); c = c->next);
1193 propertynotify(XEvent *e) {
1196 XPropertyEvent *ev = &e->xproperty;
1198 if((ev->window == root) && (ev->atom == XA_WM_NAME))
1200 else if(ev->state == PropertyDelete)
1201 return; /* ignore */
1202 else if((c = wintoclient(ev->window))) {
1205 case XA_WM_TRANSIENT_FOR:
1206 if(!c->isfloating && (XGetTransientForHint(dpy, c->win, &trans)) &&
1207 (c->isfloating = (wintoclient(trans)) != NULL))
1210 case XA_WM_NORMAL_HINTS:
1218 if(ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
1220 if(c == c->mon->sel)
1223 if(ev->atom == netatom[NetWMWindowType])
1224 updatewindowtype(c);
1229 quit(const Arg *arg) {
1234 recttomon(int x, int y, int w, int h) {
1235 Monitor *m, *r = selmon;
1238 for(m = mons; m; m = m->next)
1239 if((a = INTERSECT(x, y, w, h, m)) > area) {
1247 resize(Client *c, int x, int y, int w, int h, Bool interact) {
1248 if(applysizehints(c, &x, &y, &w, &h, interact))
1249 resizeclient(c, x, y, w, h);
1253 resizeclient(Client *c, int x, int y, int w, int h) {
1256 c->oldx = c->x; c->x = wc.x = x;
1257 c->oldy = c->y; c->y = wc.y = y;
1258 c->oldw = c->w; c->w = wc.width = w;
1259 c->oldh = c->h; c->h = wc.height = h;
1260 wc.border_width = c->bw;
1261 XConfigureWindow(dpy, c->win, CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc);
1267 resizemouse(const Arg *arg) {
1274 if(!(c = selmon->sel))
1276 if(c->isfullscreen) /* no support resizing fullscreen windows by mouse */
1281 if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
1282 None, cursor[CurResize]->cursor, CurrentTime) != GrabSuccess)
1284 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
1286 XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
1288 case ConfigureRequest:
1291 handler[ev.type](&ev);
1294 nw = MAX(ev.xmotion.x - ocx - 2 * c->bw + 1, 1);
1295 nh = MAX(ev.xmotion.y - ocy - 2 * c->bw + 1, 1);
1296 if(c->mon->wx + nw >= selmon->wx && c->mon->wx + nw <= selmon->wx + selmon->ww
1297 && c->mon->wy + nh >= selmon->wy && c->mon->wy + nh <= selmon->wy + selmon->wh)
1299 if(!c->isfloating && selmon->lt[selmon->sellt]->arrange
1300 && (abs(nw - c->w) > snap || abs(nh - c->h) > snap))
1301 togglefloating(NULL);
1303 if(!selmon->lt[selmon->sellt]->arrange || c->isfloating)
1304 resize(c, c->x, c->y, nw, nh, True);
1307 } while(ev.type != ButtonRelease);
1308 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
1309 XUngrabPointer(dpy, CurrentTime);
1310 while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
1311 if((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) {
1319 restack(Monitor *m) {
1327 if(m->sel->isfloating || !m->lt[m->sellt]->arrange)
1328 XRaiseWindow(dpy, m->sel->win);
1329 if(m->lt[m->sellt]->arrange) {
1330 wc.stack_mode = Below;
1331 wc.sibling = m->barwin;
1332 for(c = m->stack; c; c = c->snext)
1333 if(!c->isfloating && ISVISIBLE(c)) {
1334 XConfigureWindow(dpy, c->win, CWSibling|CWStackMode, &wc);
1335 wc.sibling = c->win;
1339 while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
1345 /* main event loop */
1347 while(running && !XNextEvent(dpy, &ev))
1348 if(handler[ev.type])
1349 handler[ev.type](&ev); /* call handler */
1354 unsigned int i, num;
1355 Window d1, d2, *wins = NULL;
1356 XWindowAttributes wa;
1358 if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
1359 for(i = 0; i < num; i++) {
1360 if(!XGetWindowAttributes(dpy, wins[i], &wa)
1361 || wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
1363 if(wa.map_state == IsViewable || getstate(wins[i]) == IconicState)
1364 manage(wins[i], &wa);
1366 for(i = 0; i < num; i++) { /* now the transients */
1367 if(!XGetWindowAttributes(dpy, wins[i], &wa))
1369 if(XGetTransientForHint(dpy, wins[i], &d1)
1370 && (wa.map_state == IsViewable || getstate(wins[i]) == IconicState))
1371 manage(wins[i], &wa);
1379 sendmon(Client *c, Monitor *m) {
1386 c->tags = m->tagset[m->seltags]; /* assign tags of target monitor */
1394 setclientstate(Client *c, long state) {
1395 long data[] = { state, None };
1397 XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,
1398 PropModeReplace, (unsigned char *)data, 2);
1402 sendevent(Client *c, Atom proto) {
1405 Bool exists = False;
1408 if(XGetWMProtocols(dpy, c->win, &protocols, &n)) {
1409 while(!exists && n--)
1410 exists = protocols[n] == proto;
1414 ev.type = ClientMessage;
1415 ev.xclient.window = c->win;
1416 ev.xclient.message_type = wmatom[WMProtocols];
1417 ev.xclient.format = 32;
1418 ev.xclient.data.l[0] = proto;
1419 ev.xclient.data.l[1] = CurrentTime;
1420 XSendEvent(dpy, c->win, False, NoEventMask, &ev);
1426 setfocus(Client *c) {
1427 if(!c->neverfocus) {
1428 XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
1429 XChangeProperty(dpy, root, netatom[NetActiveWindow],
1430 XA_WINDOW, 32, PropModeReplace,
1431 (unsigned char *) &(c->win), 1);
1433 sendevent(c, wmatom[WMTakeFocus]);
1437 setfullscreen(Client *c, Bool fullscreen) {
1439 XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
1440 PropModeReplace, (unsigned char*)&netatom[NetWMFullscreen], 1);
1441 c->isfullscreen = True;
1442 c->oldstate = c->isfloating;
1445 c->isfloating = True;
1446 resizeclient(c, c->mon->mx, c->mon->my, c->mon->mw, c->mon->mh);
1447 XRaiseWindow(dpy, c->win);
1450 XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
1451 PropModeReplace, (unsigned char*)0, 0);
1452 c->isfullscreen = False;
1453 c->isfloating = c->oldstate;
1459 resizeclient(c, c->x, c->y, c->w, c->h);
1465 setlayout(const Arg *arg) {
1466 if(!arg || !arg->v || arg->v != selmon->lt[selmon->sellt])
1469 selmon->lt[selmon->sellt] = (Layout *)arg->v;
1470 strncpy(selmon->ltsymbol, selmon->lt[selmon->sellt]->symbol, sizeof selmon->ltsymbol);
1477 /* arg > 1.0 will set mfact absolutly */
1479 setmfact(const Arg *arg) {
1482 if(!arg || !selmon->lt[selmon->sellt]->arrange)
1484 f = arg->f < 1.0 ? arg->f + selmon->mfact : arg->f - 1.0;
1485 if(f < 0.1 || f > 0.9)
1493 XSetWindowAttributes wa;
1495 /* clean up any zombies immediately */
1499 screen = DefaultScreen(dpy);
1500 root = RootWindow(dpy, screen);
1501 fnt = drw_font_create(dpy, font);
1502 sw = DisplayWidth(dpy, screen);
1503 sh = DisplayHeight(dpy, screen);
1505 drw = drw_create(dpy, screen, root, sw, sh);
1506 drw_setfont(drw, fnt);
1509 wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
1510 wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
1511 wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);
1512 wmatom[WMTakeFocus] = XInternAtom(dpy, "WM_TAKE_FOCUS", False);
1513 netatom[NetActiveWindow] = XInternAtom(dpy, "_NET_ACTIVE_WINDOW", False);
1514 netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
1515 netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
1516 netatom[NetWMState] = XInternAtom(dpy, "_NET_WM_STATE", False);
1517 netatom[NetWMFullscreen] = XInternAtom(dpy, "_NET_WM_STATE_FULLSCREEN", False);
1518 netatom[NetWMWindowType] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False);
1519 netatom[NetWMWindowTypeDialog] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False);
1520 netatom[NetClientList] = XInternAtom(dpy, "_NET_CLIENT_LIST", False);
1522 cursor[CurNormal] = drw_cur_create(drw, XC_left_ptr);
1523 cursor[CurResize] = drw_cur_create(drw, XC_sizing);
1524 cursor[CurMove] = drw_cur_create(drw, XC_fleur);
1525 /* init appearance */
1526 thmnorm->border = drw_clr_create(drw, normbordercolor);
1527 thmnorm->bg = drw_clr_create(drw, normbgcolor);
1528 thmnorm->fg = drw_clr_create(drw, normfgcolor);
1529 thmsel->border = drw_clr_create(drw, selbordercolor);
1530 thmsel->bg = drw_clr_create(drw, selbgcolor);
1531 thmsel->fg = drw_clr_create(drw, selfgcolor);
1535 /* EWMH support per view */
1536 XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
1537 PropModeReplace, (unsigned char *) netatom, NetLast);
1538 XDeleteProperty(dpy, root, netatom[NetClientList]);
1539 /* select for events */
1540 wa.cursor = cursor[CurNormal]->cursor;
1541 wa.event_mask = SubstructureRedirectMask|SubstructureNotifyMask|ButtonPressMask|PointerMotionMask
1542 |EnterWindowMask|LeaveWindowMask|StructureNotifyMask|PropertyChangeMask;
1543 XChangeWindowAttributes(dpy, root, CWEventMask|CWCursor, &wa);
1544 XSelectInput(dpy, root, wa.event_mask);
1549 showhide(Client *c) {
1552 if(ISVISIBLE(c)) { /* show clients top down */
1553 XMoveWindow(dpy, c->win, c->x, c->y);
1554 if((!c->mon->lt[c->mon->sellt]->arrange || c->isfloating) && !c->isfullscreen)
1555 resize(c, c->x, c->y, c->w, c->h, False);
1558 else { /* hide clients bottom up */
1560 XMoveWindow(dpy, c->win, WIDTH(c) * -2, c->y);
1565 sigchld(int unused) {
1566 if(signal(SIGCHLD, sigchld) == SIG_ERR)
1567 die("Can't install SIGCHLD handler");
1568 while(0 < waitpid(-1, NULL, WNOHANG));
1572 spawn(const Arg *arg) {
1575 close(ConnectionNumber(dpy));
1577 execvp(((char **)arg->v)[0], (char **)arg->v);
1578 fprintf(stderr, "dwm: execvp %s", ((char **)arg->v)[0]);
1585 tag(const Arg *arg) {
1586 if(selmon->sel && arg->ui & TAGMASK) {
1587 selmon->sel->tags = arg->ui & TAGMASK;
1594 tagmon(const Arg *arg) {
1595 if(!selmon->sel || !mons->next)
1597 sendmon(selmon->sel, dirtomon(arg->i));
1602 unsigned int i, n, h, mw, my, ty;
1605 for(n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
1610 mw = m->nmaster ? m->ww * m->mfact : 0;
1613 for(i = my = ty = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
1614 if(i < m->nmaster) {
1615 h = (m->wh - my) / (MIN(n, m->nmaster) - i);
1616 resize(c, m->wx, m->wy + my, mw - (2*c->bw), h - (2*c->bw), False);
1620 h = (m->wh - ty) / (n - i);
1621 resize(c, m->wx + mw, m->wy + ty, m->ww - mw - (2*c->bw), h - (2*c->bw), False);
1627 togglebar(const Arg *arg) {
1628 selmon->showbar = !selmon->showbar;
1629 updatebarpos(selmon);
1630 XMoveResizeWindow(dpy, selmon->barwin, selmon->wx, selmon->by, selmon->ww, bh);
1635 togglefloating(const Arg *arg) {
1638 if(selmon->sel->isfullscreen) /* no support for fullscreen windows */
1640 selmon->sel->isfloating = !selmon->sel->isfloating || selmon->sel->isfixed;
1641 if(selmon->sel->isfloating)
1642 resize(selmon->sel, selmon->sel->x, selmon->sel->y,
1643 selmon->sel->w, selmon->sel->h, False);
1648 toggletag(const Arg *arg) {
1649 unsigned int newtags;
1653 newtags = selmon->sel->tags ^ (arg->ui & TAGMASK);
1655 selmon->sel->tags = newtags;
1662 toggleview(const Arg *arg) {
1663 unsigned int newtagset = selmon->tagset[selmon->seltags] ^ (arg->ui & TAGMASK);
1666 selmon->tagset[selmon->seltags] = newtagset;
1673 unfocus(Client *c, Bool setfocus) {
1676 grabbuttons(c, False);
1677 XSetWindowBorder(dpy, c->win, thmnorm->border->rgb);
1679 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
1680 XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
1685 unmanage(Client *c, Bool destroyed) {
1686 Monitor *m = c->mon;
1689 /* The server grab construct avoids race conditions. */
1693 wc.border_width = c->oldbw;
1695 XSetErrorHandler(xerrordummy);
1696 XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */
1697 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
1698 setclientstate(c, WithdrawnState);
1700 XSetErrorHandler(xerror);
1710 unmapnotify(XEvent *e) {
1712 XUnmapEvent *ev = &e->xunmap;
1714 if((c = wintoclient(ev->window))) {
1716 setclientstate(c, WithdrawnState);
1725 XSetWindowAttributes wa = {
1726 .override_redirect = True,
1727 .background_pixmap = ParentRelative,
1728 .event_mask = ButtonPressMask|ExposureMask
1730 for(m = mons; m; m = m->next) {
1733 m->barwin = XCreateWindow(dpy, root, m->wx, m->by, m->ww, bh, 0, DefaultDepth(dpy, screen),
1734 CopyFromParent, DefaultVisual(dpy, screen),
1735 CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
1736 XDefineCursor(dpy, m->barwin, cursor[CurNormal]->cursor);
1737 XMapRaised(dpy, m->barwin);
1742 updatebarpos(Monitor *m) {
1747 m->by = m->topbar ? m->wy : m->wy + m->wh;
1748 m->wy = m->topbar ? m->wy + bh : m->wy;
1755 updateclientlist() {
1759 XDeleteProperty(dpy, root, netatom[NetClientList]);
1760 for(m = mons; m; m = m->next)
1761 for(c = m->clients; c; c = c->next)
1762 XChangeProperty(dpy, root, netatom[NetClientList],
1763 XA_WINDOW, 32, PropModeAppend,
1764 (unsigned char *) &(c->win), 1);
1772 if(XineramaIsActive(dpy)) {
1776 XineramaScreenInfo *info = XineramaQueryScreens(dpy, &nn);
1777 XineramaScreenInfo *unique = NULL;
1779 for(n = 0, m = mons; m; m = m->next, n++);
1780 /* only consider unique geometries as separate screens */
1781 if(!(unique = (XineramaScreenInfo *)malloc(sizeof(XineramaScreenInfo) * nn)))
1782 die("fatal: could not malloc() %u bytes\n", sizeof(XineramaScreenInfo) * nn);
1783 for(i = 0, j = 0; i < nn; i++)
1784 if(isuniquegeom(unique, j, &info[i]))
1785 memcpy(&unique[j++], &info[i], sizeof(XineramaScreenInfo));
1789 for(i = 0; i < (nn - n); i++) { /* new monitors available */
1790 for(m = mons; m && m->next; m = m->next);
1792 m->next = createmon();
1796 for(i = 0, m = mons; i < nn && m; m = m->next, i++)
1798 || (unique[i].x_org != m->mx || unique[i].y_org != m->my
1799 || unique[i].width != m->mw || unique[i].height != m->mh))
1803 m->mx = m->wx = unique[i].x_org;
1804 m->my = m->wy = unique[i].y_org;
1805 m->mw = m->ww = unique[i].width;
1806 m->mh = m->wh = unique[i].height;
1810 else { /* less monitors available nn < n */
1811 for(i = nn; i < n; i++) {
1812 for(m = mons; m && m->next; m = m->next);
1816 m->clients = c->next;
1830 #endif /* XINERAMA */
1831 /* default monitor setup */
1835 if(mons->mw != sw || mons->mh != sh) {
1837 mons->mw = mons->ww = sw;
1838 mons->mh = mons->wh = sh;
1844 selmon = wintomon(root);
1850 updatenumlockmask(void) {
1852 XModifierKeymap *modmap;
1855 modmap = XGetModifierMapping(dpy);
1856 for(i = 0; i < 8; i++)
1857 for(j = 0; j < modmap->max_keypermod; j++)
1858 if(modmap->modifiermap[i * modmap->max_keypermod + j]
1859 == XKeysymToKeycode(dpy, XK_Num_Lock))
1860 numlockmask = (1 << i);
1861 XFreeModifiermap(modmap);
1865 updatesizehints(Client *c) {
1869 if(!XGetWMNormalHints(dpy, c->win, &size, &msize))
1870 /* size is uninitialized, ensure that size.flags aren't used */
1872 if(size.flags & PBaseSize) {
1873 c->basew = size.base_width;
1874 c->baseh = size.base_height;
1876 else if(size.flags & PMinSize) {
1877 c->basew = size.min_width;
1878 c->baseh = size.min_height;
1881 c->basew = c->baseh = 0;
1882 if(size.flags & PResizeInc) {
1883 c->incw = size.width_inc;
1884 c->inch = size.height_inc;
1887 c->incw = c->inch = 0;
1888 if(size.flags & PMaxSize) {
1889 c->maxw = size.max_width;
1890 c->maxh = size.max_height;
1893 c->maxw = c->maxh = 0;
1894 if(size.flags & PMinSize) {
1895 c->minw = size.min_width;
1896 c->minh = size.min_height;
1898 else if(size.flags & PBaseSize) {
1899 c->minw = size.base_width;
1900 c->minh = size.base_height;
1903 c->minw = c->minh = 0;
1904 if(size.flags & PAspect) {
1905 c->mina = (float)size.min_aspect.y / size.min_aspect.x;
1906 c->maxa = (float)size.max_aspect.x / size.max_aspect.y;
1909 c->maxa = c->mina = 0.0;
1910 c->isfixed = (c->maxw && c->minw && c->maxh && c->minh
1911 && c->maxw == c->minw && c->maxh == c->minh);
1915 updatetitle(Client *c) {
1916 if(!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
1917 gettextprop(c->win, XA_WM_NAME, c->name, sizeof c->name);
1918 if(c->name[0] == '\0') /* hack to mark broken clients */
1919 strcpy(c->name, broken);
1923 updatestatus(void) {
1924 if(!gettextprop(root, XA_WM_NAME, stext, sizeof(stext)))
1925 strcpy(stext, "dwm-"VERSION);
1930 updatewindowtype(Client *c) {
1931 Atom state = getatomprop(c, netatom[NetWMState]);
1932 Atom wtype = getatomprop(c, netatom[NetWMWindowType]);
1934 if(state == netatom[NetWMFullscreen])
1935 setfullscreen(c, True);
1936 if(wtype == netatom[NetWMWindowTypeDialog])
1937 c->isfloating = True;
1941 updatewmhints(Client *c) {
1944 if((wmh = XGetWMHints(dpy, c->win))) {
1945 if(c == selmon->sel && wmh->flags & XUrgencyHint) {
1946 wmh->flags &= ~XUrgencyHint;
1947 XSetWMHints(dpy, c->win, wmh);
1950 c->isurgent = (wmh->flags & XUrgencyHint) ? True : False;
1951 if(wmh->flags & InputHint)
1952 c->neverfocus = !wmh->input;
1954 c->neverfocus = False;
1960 view(const Arg *arg) {
1961 if((arg->ui & TAGMASK) == selmon->tagset[selmon->seltags])
1963 selmon->seltags ^= 1; /* toggle sel tagset */
1964 if(arg->ui & TAGMASK)
1965 selmon->tagset[selmon->seltags] = arg->ui & TAGMASK;
1971 wintoclient(Window w) {
1975 for(m = mons; m; m = m->next)
1976 for(c = m->clients; c; c = c->next)
1983 wintomon(Window w) {
1988 if(w == root && getrootptr(&x, &y))
1989 return recttomon(x, y, 1, 1);
1990 for(m = mons; m; m = m->next)
1993 if((c = wintoclient(w)))
1998 /* There's no way to check accesses to destroyed windows, thus those cases are
1999 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
2000 * default error handler, which may call exit. */
2002 xerror(Display *dpy, XErrorEvent *ee) {
2003 if(ee->error_code == BadWindow
2004 || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
2005 || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
2006 || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
2007 || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
2008 || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
2009 || (ee->request_code == X_GrabButton && ee->error_code == BadAccess)
2010 || (ee->request_code == X_GrabKey && ee->error_code == BadAccess)
2011 || (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
2013 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
2014 ee->request_code, ee->error_code);
2015 return xerrorxlib(dpy, ee); /* may call exit */
2019 xerrordummy(Display *dpy, XErrorEvent *ee) {
2023 /* Startup Error handler to check if another window manager
2024 * is already running. */
2026 xerrorstart(Display *dpy, XErrorEvent *ee) {
2027 die("dwm: another window manager is already running\n");
2032 zoom(const Arg *arg) {
2033 Client *c = selmon->sel;
2035 if(!selmon->lt[selmon->sellt]->arrange
2036 || (selmon->sel && selmon->sel->isfloating))
2038 if(c == nexttiled(selmon->clients))
2039 if(!c || !(c = nexttiled(c->next)))
2045 main(int argc, char *argv[]) {
2046 if(argc == 2 && !strcmp("-v", argv[1]))
2047 die("dwm-"VERSION", © 2006-2012 dwm engineers, see LICENSE for details\n");
2049 die("usage: dwm [-v]\n");
2050 if(!setlocale(LC_CTYPE, "") || !XSupportsLocale())
2051 fputs("warning: no locale support\n", stderr);
2052 if(!(dpy = XOpenDisplay(NULL)))
2053 die("dwm: cannot open display\n");
2060 return EXIT_SUCCESS;