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 { SchemeNorm, SchemeSel, SchemeLast }; /* color schemes */
62 enum { NetSupported, NetWMName, NetWMState,
63 NetWMFullscreen, NetWMWindowOpacity, 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 Client *nextvisible(Client *c);
188 static void pop(Client *);
189 static void propertynotify(XEvent *e);
190 static void quit(const Arg *arg);
191 static Monitor *recttomon(int x, int y, int w, int h);
192 static void resize(Client *c, int x, int y, int w, int h, Bool interact);
193 static void resizeclient(Client *c, int x, int y, int w, int h);
194 static void resizemouse(const Arg *arg);
195 static void restack(Monitor *m);
196 static void run(void);
197 static void scan(void);
198 static Bool sendevent(Client *c, Atom proto);
199 static void sendmon(Client *c, Monitor *m);
200 static void setclientstate(Client *c, long state);
201 static void setfocus(Client *c);
202 static void setfullscreen(Client *c, Bool fullscreen);
203 static void setlayout(const Arg *arg);
204 static void setmfact(const Arg *arg);
205 static void setup(void);
206 static void showhide(Client *c);
207 static void sigchld(int unused);
208 static void spawn(const Arg *arg);
209 static void tag(const Arg *arg);
210 static void tagmon(const Arg *arg);
211 static void tile(Monitor *);
212 static void togglebar(const Arg *arg);
213 static void togglefloating(const Arg *arg);
214 static void toggletag(const Arg *arg);
215 static void toggleview(const Arg *arg);
216 static void unfocus(Client *c, Bool setfocus);
217 static void unmanage(Client *c, Bool destroyed);
218 static void unmapnotify(XEvent *e);
219 static Bool updategeom(void);
220 static void updatebarpos(Monitor *m);
221 static void updatebars(void);
222 static void updateclientlist(void);
223 static void updatenumlockmask(void);
224 static void updatesizehints(Client *c);
225 static void updatestatus(void);
226 static void updatewindowtype(Client *c);
227 static void updatetitle(Client *c);
228 static void updatewmhints(Client *c);
229 static void view(const Arg *arg);
230 static Client *wintoclient(Window w);
231 static Monitor *wintomon(Window w);
232 static int xerror(Display *dpy, XErrorEvent *ee);
233 static int xerrordummy(Display *dpy, XErrorEvent *ee);
234 static int xerrorstart(Display *dpy, XErrorEvent *ee);
235 static void zoom(const Arg *arg);
238 static const char broken[] = "broken";
239 static char stext[256];
241 static int sw, sh; /* X display screen geometry width, height */
242 static int bh, blw = 0; /* bar geometry */
243 static int (*xerrorxlib)(Display *, XErrorEvent *);
244 static unsigned int numlockmask = 0;
245 static void (*handler[LASTEvent]) (XEvent *) = {
246 [ButtonPress] = buttonpress,
247 [ClientMessage] = clientmessage,
248 [ConfigureRequest] = configurerequest,
249 [ConfigureNotify] = configurenotify,
250 [DestroyNotify] = destroynotify,
251 [EnterNotify] = enternotify,
254 [KeyPress] = keypress,
255 [MappingNotify] = mappingnotify,
256 [MapRequest] = maprequest,
257 [MotionNotify] = motionnotify,
258 [PropertyNotify] = propertynotify,
259 [UnmapNotify] = unmapnotify
261 static Atom wmatom[WMLast], netatom[NetLast];
262 static Bool running = True;
263 static Cur *cursor[CurLast];
264 static ClrScheme scheme[SchemeLast];
268 static Monitor *mons, *selmon;
271 // unfocused windows get transparent (feature)
272 static const unsigned long unfocused_opacity[] = { 0xbfffffff };
273 static void window_set_opaque(Client *c);
274 static void window_set_translucent(Client *c);
276 window_set_opaque(Client *c) {
277 XDeleteProperty(dpy, c->win, netatom[NetWMWindowOpacity]);
280 window_set_translucent(Client *c) {
281 XChangeProperty(dpy, c->win, netatom[NetWMWindowOpacity], XA_CARDINAL, 32, PropModeReplace, (unsigned char *)unfocused_opacity, 1);
285 /* configuration, allows nested code to access above variables */
288 /* compile-time check if all tags fit into an unsigned int bit array. */
289 struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; };
291 /* function implementations */
293 applyrules(Client *c) {
294 const char *class, *instance;
298 XClassHint ch = { NULL, NULL };
301 c->isfloating = c->tags = 0;
302 XGetClassHint(dpy, c->win, &ch);
303 class = ch.res_class ? ch.res_class : broken;
304 instance = ch.res_name ? ch.res_name : broken;
306 for(i = 0; i < LENGTH(rules); i++) {
308 if((!r->title || strstr(c->name, r->title))
309 && (!r->class || strstr(class, r->class))
310 && (!r->instance || strstr(instance, r->instance)))
312 c->isfloating = r->isfloating;
314 for(m = mons; m && m->num != r->monitor; m = m->next);
323 c->tags = c->tags & TAGMASK ? c->tags & TAGMASK : c->mon->tagset[c->mon->seltags];
327 applysizehints(Client *c, int *x, int *y, int *w, int *h, Bool interact) {
331 /* set minimum possible */
339 if(*x + *w + 2 * c->bw < 0)
341 if(*y + *h + 2 * c->bw < 0)
345 if(*x >= m->wx + m->ww)
346 *x = m->wx + m->ww - WIDTH(c);
347 if(*y >= m->wy + m->wh)
348 *y = m->wy + m->wh - HEIGHT(c);
349 if(*x + *w + 2 * c->bw <= m->wx)
351 if(*y + *h + 2 * c->bw <= m->wy)
358 if(resizehints || c->isfloating || !c->mon->lt[c->mon->sellt]->arrange) {
359 /* see last two sentences in ICCCM 4.1.2.3 */
360 baseismin = c->basew == c->minw && c->baseh == c->minh;
361 if(!baseismin) { /* temporarily remove base dimensions */
365 /* adjust for aspect limits */
366 if(c->mina > 0 && c->maxa > 0) {
367 if(c->maxa < (float)*w / *h)
368 *w = *h * c->maxa + 0.5;
369 else if(c->mina < (float)*h / *w)
370 *h = *w * c->mina + 0.5;
372 if(baseismin) { /* increment calculation requires this */
376 /* adjust for increment value */
381 /* restore base dimensions */
382 *w = MAX(*w + c->basew, c->minw);
383 *h = MAX(*h + c->baseh, c->minh);
385 *w = MIN(*w, c->maxw);
387 *h = MIN(*h, c->maxh);
389 return *x != c->x || *y != c->y || *w != c->w || *h != c->h;
393 arrange(Monitor *m) {
396 else for(m = mons; m; m = m->next)
401 } else for(m = mons; m; m = m->next)
406 arrangemon(Monitor *m) {
407 strncpy(m->ltsymbol, m->lt[m->sellt]->symbol, sizeof m->ltsymbol);
408 if(m->lt[m->sellt]->arrange)
409 m->lt[m->sellt]->arrange(m);
415 c->next = c->mon->sel->next;
416 c->mon->sel->next = c;
418 c->next = c->mon->clients;
424 attachstack(Client *c) {
425 c->snext = c->mon->stack;
430 buttonpress(XEvent *e) {
431 unsigned int i, x, click;
435 XButtonPressedEvent *ev = &e->xbutton;
438 /* focus monitor if necessary */
439 if((m = wintomon(ev->window)) && m != selmon) {
440 unfocus(selmon->sel, True);
444 if(ev->window == selmon->barwin) {
448 while(ev->x >= x && ++i < LENGTH(tags));
449 if(i < LENGTH(tags)) {
453 else if(ev->x < x + blw)
455 else if(ev->x > selmon->ww - TEXTW(stext))
456 click = ClkStatusText;
460 else if((c = wintoclient(ev->window))) {
462 click = ClkClientWin;
464 for(i = 0; i < LENGTH(buttons); i++)
465 if(click == buttons[i].click && buttons[i].func && buttons[i].button == ev->button
466 && CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
467 buttons[i].func(click == ClkTagBar && buttons[i].arg.i == 0 ? &arg : &buttons[i].arg);
472 xerrorxlib = XSetErrorHandler(xerrorstart);
473 /* this causes an error if some other window manager is running */
474 XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask);
476 XSetErrorHandler(xerror);
483 Layout foo = { "", NULL };
487 selmon->lt[selmon->sellt] = &foo;
488 for(m = mons; m; m = m->next)
490 unmanage(m->stack, False);
491 XUngrabKey(dpy, AnyKey, AnyModifier, root);
494 drw_cur_free(drw, cursor[CurNormal]);
495 drw_cur_free(drw, cursor[CurResize]);
496 drw_cur_free(drw, cursor[CurMove]);
497 drw_font_free(dpy, fnt);
498 drw_clr_free(scheme[SchemeNorm].border);
499 drw_clr_free(scheme[SchemeNorm].bg);
500 drw_clr_free(scheme[SchemeNorm].fg);
501 drw_clr_free(scheme[SchemeSel].border);
502 drw_clr_free(scheme[SchemeSel].bg);
503 drw_clr_free(scheme[SchemeSel].fg);
506 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
507 XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
511 cleanupmon(Monitor *mon) {
517 for(m = mons; m && m->next != mon; m = m->next);
520 XUnmapWindow(dpy, mon->barwin);
521 XDestroyWindow(dpy, mon->barwin);
526 clearurgent(Client *c) {
530 if(!(wmh = XGetWMHints(dpy, c->win)))
532 wmh->flags &= ~XUrgencyHint;
533 XSetWMHints(dpy, c->win, wmh);
538 clientmessage(XEvent *e) {
539 XClientMessageEvent *cme = &e->xclient;
540 Client *c = wintoclient(cme->window);
544 if(cme->message_type == netatom[NetWMState]) {
545 if(cme->data.l[1] == netatom[NetWMFullscreen] || cme->data.l[2] == netatom[NetWMFullscreen])
546 setfullscreen(c, (cme->data.l[0] == 1 /* _NET_WM_STATE_ADD */
547 || (cme->data.l[0] == 2 /* _NET_WM_STATE_TOGGLE */ && !c->isfullscreen)));
549 else if(cme->message_type == netatom[NetActiveWindow]) {
551 c->mon->seltags ^= 1;
552 c->mon->tagset[c->mon->seltags] = c->tags;
559 configure(Client *c) {
562 ce.type = ConfigureNotify;
570 ce.border_width = c->bw;
572 ce.override_redirect = False;
573 XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce);
577 configurenotify(XEvent *e) {
579 XConfigureEvent *ev = &e->xconfigure;
582 // TODO: updategeom handling sucks, needs to be simplified
583 if(ev->window == root) {
584 dirty = (sw != ev->width || sh != ev->height);
587 if(updategeom() || dirty) {
588 drw_resize(drw, sw, bh);
590 for(m = mons; m; m = m->next)
591 XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, m->ww, bh);
599 configurerequest(XEvent *e) {
602 XConfigureRequestEvent *ev = &e->xconfigurerequest;
605 if((c = wintoclient(ev->window))) {
606 if(ev->value_mask & CWBorderWidth)
607 c->bw = ev->border_width;
608 else if(c->isfloating || !selmon->lt[selmon->sellt]->arrange) {
610 if(ev->value_mask & CWX) {
612 c->x = m->mx + ev->x;
614 if(ev->value_mask & CWY) {
616 c->y = m->my + ev->y;
618 if(ev->value_mask & CWWidth) {
622 if(ev->value_mask & CWHeight) {
626 if((c->x + c->w) > m->mx + m->mw && c->isfloating)
627 c->x = m->mx + (m->mw / 2 - WIDTH(c) / 2); /* center in x direction */
628 if((c->y + c->h) > m->my + m->mh && c->isfloating)
629 c->y = m->my + (m->mh / 2 - HEIGHT(c) / 2); /* center in y direction */
630 if((ev->value_mask & (CWX|CWY)) && !(ev->value_mask & (CWWidth|CWHeight)))
633 XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
641 wc.width = ev->width;
642 wc.height = ev->height;
643 wc.border_width = ev->border_width;
644 wc.sibling = ev->above;
645 wc.stack_mode = ev->detail;
646 XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
655 if(!(m = (Monitor *)calloc(1, sizeof(Monitor))))
656 die("fatal: could not malloc() %u bytes\n", sizeof(Monitor));
657 m->tagset[0] = m->tagset[1] = 1;
659 m->nmaster = nmaster;
660 m->showbar = showbar;
662 m->lt[0] = &layouts[0];
663 m->lt[1] = &layouts[1 % LENGTH(layouts)];
664 strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol);
669 destroynotify(XEvent *e) {
671 XDestroyWindowEvent *ev = &e->xdestroywindow;
673 if((c = wintoclient(ev->window)))
681 for(tc = &c->mon->clients; *tc && *tc != c; tc = &(*tc)->next);
685 // NOTE: the stack is for z-order and most-recently-focused
686 // only mon->clients determines position in visible layout
688 detachstack(Client *c) {
689 Client *prev = NULL, *next_sel = NULL, *i;
690 for(i = c->mon->stack; i && i != c; i = i->snext) {
693 if(c == c->mon->sel) {
694 // find last visible window before c
695 // WARNING if you detach() before detachstack() this will select last visible window
696 for(i = nextvisible(c->mon->clients); i && i != c; i = nextvisible(i->next))
698 // failing that, find first visible window (besides c)
700 for(i = nextvisible(c->mon->clients); i && i == c; i = nextvisible(i->next));
703 c->mon->sel = next_sel;
706 prev->snext = c->snext;
708 c->mon->stack = c->snext;
717 if(!(m = selmon->next))
720 else if(selmon == mons)
721 for(m = mons; m->next; m = m->next);
723 for(m = mons; m->next != selmon; m = m->next);
728 drawbar(Monitor *m) {
730 unsigned int i, occ = 0, urg = 0;
733 for(c = m->clients; c; c = c->next) {
739 for(i = 0; i < LENGTH(tags); i++) {
741 drw_setscheme(drw, m->tagset[m->seltags] & 1 << i ? &scheme[SchemeSel] : &scheme[SchemeNorm]);
742 drw_text(drw, x, 0, w, bh, tags[i], urg & 1 << i);
743 drw_rect(drw, x, 0, w, bh, m == selmon && selmon->sel && selmon->sel->tags & 1 << i,
744 occ & 1 << i, urg & 1 << i);
747 w = blw = TEXTW(m->ltsymbol);
748 drw_setscheme(drw, &scheme[SchemeNorm]);
749 drw_text(drw, x, 0, w, bh, m->ltsymbol, 0);
752 if(m == selmon) { /* status is only drawn on selected monitor */
759 drw_text(drw, x, 0, w, bh, stext, 0);
763 if((w = x - xx) > bh) {
766 drw_setscheme(drw, m == selmon ? &scheme[SchemeSel] : &scheme[SchemeNorm]);
767 drw_text(drw, x, 0, w, bh, m->sel->name, 0);
768 drw_rect(drw, x, 0, w, bh, m->sel->isfixed, m->sel->isfloating, 0);
771 drw_setscheme(drw, &scheme[SchemeNorm]);
772 drw_text(drw, x, 0, w, bh, NULL, 0);
775 drw_map(drw, m->barwin, 0, 0, m->ww, bh);
782 for(m = mons; m; m = m->next)
787 enternotify(XEvent *e) {
790 XCrossingEvent *ev = &e->xcrossing;
792 if((ev->mode != NotifyNormal || ev->detail == NotifyInferior) && ev->window != root)
794 c = wintoclient(ev->window);
795 m = c ? c->mon : wintomon(ev->window);
797 unfocus(selmon->sel, True);
800 else if(!c || c == selmon->sel)
808 XExposeEvent *ev = &e->xexpose;
810 if(ev->count == 0 && (m = wintomon(ev->window)))
816 if(!c || !ISVISIBLE(c))
817 for(c = selmon->stack; c && !ISVISIBLE(c); c = c->snext);
818 /* was if(selmon->sel) */
819 if(selmon->sel && selmon->sel != c)
820 unfocus(selmon->sel, False);
828 grabbuttons(c, True);
829 XSetWindowBorder(dpy, c->win, scheme[SchemeSel].border->rgb);
833 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
834 XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
838 if(c && (!root || (c->win!=root)) )
839 window_set_opaque(c);
843 focusin(XEvent *e) { /* there are some broken focus acquiring clients */
844 XFocusChangeEvent *ev = &e->xfocus;
846 if(selmon->sel && ev->window != selmon->sel->win)
847 setfocus(selmon->sel);
851 focusmon(const Arg *arg) {
856 if((m = dirtomon(arg->i)) == selmon)
858 unfocus(selmon->sel, False); /* s/True/False/ fixes input focus issues
859 in gedit and anjuta */
865 focusstack(const Arg *arg) {
866 Client *c = NULL, *i;
871 for(i = selmon->clients; i != selmon->sel; i = i->next) {
877 } else if(arg->i > 0) {
878 for(c = selmon->sel->next; c && !ISVISIBLE(c); c = c->next);
880 for(c = selmon->clients; c && !ISVISIBLE(c); c = c->next);
883 for(i = selmon->clients; i != selmon->sel; i = i->next)
887 for(; i; i = i->next)
898 getatomprop(Client *c, Atom prop) {
901 unsigned char *p = NULL;
902 Atom da, atom = None;
904 if(XGetWindowProperty(dpy, c->win, prop, 0L, sizeof atom, False, XA_ATOM,
905 &da, &di, &dl, &dl, &p) == Success && p) {
913 getrootptr(int *x, int *y) {
918 return XQueryPointer(dpy, root, &dummy, &dummy, x, y, &di, &di, &dui);
925 unsigned char *p = NULL;
926 unsigned long n, extra;
929 if(XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState],
930 &real, &format, &n, &extra, (unsigned char **)&p) != Success)
939 gettextprop(Window w, Atom atom, char *text, unsigned int size) {
944 if(!text || size == 0)
947 XGetTextProperty(dpy, w, &name, atom);
950 if(name.encoding == XA_STRING)
951 strncpy(text, (char *)name.value, size - 1);
953 if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success && n > 0 && *list) {
954 strncpy(text, *list, size - 1);
955 XFreeStringList(list);
958 text[size - 1] = '\0';
964 grabbuttons(Client *c, Bool focused) {
968 unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
969 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
971 for(i = 0; i < LENGTH(buttons); i++)
972 if(buttons[i].click == ClkClientWin)
973 for(j = 0; j < LENGTH(modifiers); j++)
974 XGrabButton(dpy, buttons[i].button,
975 buttons[i].mask | modifiers[j],
976 c->win, False, BUTTONMASK,
977 GrabModeAsync, GrabModeSync, None, None);
980 XGrabButton(dpy, AnyButton, AnyModifier, c->win, False,
981 BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
990 unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
993 XUngrabKey(dpy, AnyKey, AnyModifier, root);
994 for(i = 0; i < LENGTH(keys); i++)
995 if((code = XKeysymToKeycode(dpy, keys[i].keysym)))
996 for(j = 0; j < LENGTH(modifiers); j++)
997 XGrabKey(dpy, code, keys[i].mod | modifiers[j], root,
998 True, GrabModeAsync, GrabModeAsync);
1003 incnmaster(const Arg *arg) {
1004 selmon->nmaster = MAX(selmon->nmaster + arg->i, 0);
1010 isuniquegeom(XineramaScreenInfo *unique, size_t n, XineramaScreenInfo *info) {
1012 if(unique[n].x_org == info->x_org && unique[n].y_org == info->y_org
1013 && unique[n].width == info->width && unique[n].height == info->height)
1017 #endif /* XINERAMA */
1020 keypress(XEvent *e) {
1026 keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
1027 for(i = 0; i < LENGTH(keys); i++)
1028 if(keysym == keys[i].keysym
1029 && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
1031 keys[i].func(&(keys[i].arg));
1035 killclient(const Arg *arg) {
1038 if(!sendevent(selmon->sel, wmatom[WMDelete])) {
1040 XSetErrorHandler(xerrordummy);
1041 XSetCloseDownMode(dpy, DestroyAll);
1042 XKillClient(dpy, selmon->sel->win);
1044 XSetErrorHandler(xerror);
1050 manage(Window w, XWindowAttributes *wa) {
1051 Client *c, *t = NULL;
1052 Window trans = None;
1055 if(!(c = calloc(1, sizeof(Client))))
1056 die("fatal: could not malloc() %u bytes\n", sizeof(Client));
1059 if(XGetTransientForHint(dpy, w, &trans) && (t = wintoclient(trans))) {
1068 c->x = c->oldx = wa->x;
1069 c->y = c->oldy = wa->y;
1070 c->w = c->oldw = wa->width;
1071 c->h = c->oldh = wa->height;
1072 c->oldbw = wa->border_width;
1074 if(c->x + WIDTH(c) > c->mon->mx + c->mon->mw)
1075 c->x = c->mon->mx + c->mon->mw - WIDTH(c);
1076 if(c->y + HEIGHT(c) > c->mon->my + c->mon->mh)
1077 c->y = c->mon->my + c->mon->mh - HEIGHT(c);
1078 c->x = MAX(c->x, c->mon->mx);
1079 /* only fix client y-offset, if the client center might cover the bar */
1080 c->y = MAX(c->y, ((c->mon->by == c->mon->my) && (c->x + (c->w / 2) >= c->mon->wx)
1081 && (c->x + (c->w / 2) < c->mon->wx + c->mon->ww)) ? bh : c->mon->my);
1084 wc.border_width = c->bw;
1085 XConfigureWindow(dpy, w, CWBorderWidth, &wc);
1086 XSetWindowBorder(dpy, w, scheme[SchemeNorm].border->rgb);
1087 configure(c); /* propagates border_width, if size doesn't change */
1088 updatewindowtype(c);
1091 XSelectInput(dpy, w, EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask);
1092 grabbuttons(c, False);
1094 c->isfloating = c->oldstate = trans != None || c->isfixed;
1096 XRaiseWindow(dpy, c->win);
1099 XChangeProperty(dpy, root, netatom[NetClientList], XA_WINDOW, 32, PropModeAppend,
1100 (unsigned char *) &(c->win), 1);
1101 XMoveResizeWindow(dpy, c->win, c->x + 2 * sw, c->y, c->w, c->h); /* some windows require this */
1102 setclientstate(c, NormalState);
1103 if (c->mon == selmon)
1104 unfocus(selmon->sel, False);
1107 XMapWindow(dpy, c->win);
1112 mappingnotify(XEvent *e) {
1113 XMappingEvent *ev = &e->xmapping;
1115 XRefreshKeyboardMapping(ev);
1116 if(ev->request == MappingKeyboard)
1121 maprequest(XEvent *e) {
1122 static XWindowAttributes wa;
1123 XMapRequestEvent *ev = &e->xmaprequest;
1125 if(!XGetWindowAttributes(dpy, ev->window, &wa))
1127 if(wa.override_redirect)
1129 if(!wintoclient(ev->window))
1130 manage(ev->window, &wa);
1134 monocle(Monitor *m) {
1138 for(c = m->clients; c; c = c->next)
1141 if(n > 0) /* override layout symbol */
1142 snprintf(m->ltsymbol, sizeof m->ltsymbol, "[%d]", n);
1143 for(c = nexttiled(m->clients); c; c = nexttiled(c->next))
1144 resize(c, m->wx, m->wy, m->ww - 2 * c->bw, m->wh - 2 * c->bw, False);
1148 motionnotify(XEvent *e) {
1149 static Monitor *mon = NULL;
1151 XMotionEvent *ev = &e->xmotion;
1153 if(ev->window != root)
1155 if((m = recttomon(ev->x_root, ev->y_root, 1, 1)) != mon && mon) {
1156 unfocus(selmon->sel, True);
1164 movemouse(const Arg *arg) {
1165 int x, y, ocx, ocy, nx, ny;
1171 if(!(c = selmon->sel))
1173 if(c->isfullscreen) /* no support moving fullscreen windows by mouse */
1178 if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
1179 None, cursor[CurMove]->cursor, CurrentTime) != GrabSuccess)
1181 if(!getrootptr(&x, &y))
1184 XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
1186 case ConfigureRequest:
1189 handler[ev.type](&ev);
1192 if ((ev.xmotion.time - lasttime) <= (1000 / 60))
1194 lasttime = ev.xmotion.time;
1196 nx = ocx + (ev.xmotion.x - x);
1197 ny = ocy + (ev.xmotion.y - y);
1198 if(nx >= selmon->wx && nx <= selmon->wx + selmon->ww
1199 && ny >= selmon->wy && ny <= selmon->wy + selmon->wh) {
1200 if(abs(selmon->wx - nx) < snap)
1202 else if(abs((selmon->wx + selmon->ww) - (nx + WIDTH(c))) < snap)
1203 nx = selmon->wx + selmon->ww - WIDTH(c);
1204 if(abs(selmon->wy - ny) < snap)
1206 else if(abs((selmon->wy + selmon->wh) - (ny + HEIGHT(c))) < snap)
1207 ny = selmon->wy + selmon->wh - HEIGHT(c);
1208 if(!c->isfloating && selmon->lt[selmon->sellt]->arrange
1209 && (abs(nx - c->x) > snap || abs(ny - c->y) > snap))
1210 togglefloating(NULL);
1212 if(!selmon->lt[selmon->sellt]->arrange || c->isfloating)
1213 resize(c, nx, ny, c->w, c->h, True);
1216 } while(ev.type != ButtonRelease);
1217 XUngrabPointer(dpy, CurrentTime);
1218 if((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) {
1226 nexttiled(Client *c) {
1227 for(; c && (c->isfloating || !ISVISIBLE(c)); c = c->next);
1232 nextvisible(Client *c) {
1233 for(; c && !ISVISIBLE(c); c = c->next);
1246 propertynotify(XEvent *e) {
1249 XPropertyEvent *ev = &e->xproperty;
1251 if((ev->window == root) && (ev->atom == XA_WM_NAME))
1253 else if(ev->state == PropertyDelete)
1254 return; /* ignore */
1255 else if((c = wintoclient(ev->window))) {
1258 case XA_WM_TRANSIENT_FOR:
1259 if(!c->isfloating && (XGetTransientForHint(dpy, c->win, &trans)) &&
1260 (c->isfloating = (wintoclient(trans)) != NULL))
1263 case XA_WM_NORMAL_HINTS:
1271 if(ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
1273 if(c == c->mon->sel)
1276 if(ev->atom == netatom[NetWMWindowType])
1277 updatewindowtype(c);
1282 quit(const Arg *arg) {
1287 recttomon(int x, int y, int w, int h) {
1288 Monitor *m, *r = selmon;
1291 for(m = mons; m; m = m->next)
1292 if((a = INTERSECT(x, y, w, h, m)) > area) {
1300 resize(Client *c, int x, int y, int w, int h, Bool interact) {
1301 if(applysizehints(c, &x, &y, &w, &h, interact))
1302 resizeclient(c, x, y, w, h);
1306 resizeclient(Client *c, int x, int y, int w, int h) {
1309 c->oldx = c->x; c->x = wc.x = x;
1310 c->oldy = c->y; c->y = wc.y = y;
1311 c->oldw = c->w; c->w = wc.width = w;
1312 c->oldh = c->h; c->h = wc.height = h;
1313 wc.border_width = c->bw;
1314 XConfigureWindow(dpy, c->win, CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc);
1320 resizemouse(const Arg *arg) {
1321 int ocx, ocy, nw, nh;
1327 if(!(c = selmon->sel))
1329 if(c->isfullscreen) /* no support resizing fullscreen windows by mouse */
1334 if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
1335 None, cursor[CurResize]->cursor, CurrentTime) != GrabSuccess)
1337 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
1339 XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
1341 case ConfigureRequest:
1344 handler[ev.type](&ev);
1347 if ((ev.xmotion.time - lasttime) <= (1000 / 60))
1349 lasttime = ev.xmotion.time;
1351 nw = MAX(ev.xmotion.x - ocx - 2 * c->bw + 1, 1);
1352 nh = MAX(ev.xmotion.y - ocy - 2 * c->bw + 1, 1);
1353 if(c->mon->wx + nw >= selmon->wx && c->mon->wx + nw <= selmon->wx + selmon->ww
1354 && c->mon->wy + nh >= selmon->wy && c->mon->wy + nh <= selmon->wy + selmon->wh)
1356 if(!c->isfloating && selmon->lt[selmon->sellt]->arrange
1357 && (abs(nw - c->w) > snap || abs(nh - c->h) > snap))
1358 togglefloating(NULL);
1360 if(!selmon->lt[selmon->sellt]->arrange || c->isfloating)
1361 resize(c, c->x, c->y, nw, nh, True);
1364 } while(ev.type != ButtonRelease);
1365 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
1366 XUngrabPointer(dpy, CurrentTime);
1367 while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
1368 if((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) {
1376 restack(Monitor *m) {
1384 if(m->sel->isfloating || !m->lt[m->sellt]->arrange)
1385 XRaiseWindow(dpy, m->sel->win);
1386 if(m->lt[m->sellt]->arrange) {
1387 wc.stack_mode = Below;
1388 wc.sibling = m->barwin;
1389 for(c = m->stack; c; c = c->snext)
1390 if(!c->isfloating && ISVISIBLE(c)) {
1391 XConfigureWindow(dpy, c->win, CWSibling|CWStackMode, &wc);
1392 wc.sibling = c->win;
1396 while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
1402 /* main event loop */
1404 while(running && !XNextEvent(dpy, &ev))
1405 if(handler[ev.type])
1406 handler[ev.type](&ev); /* call handler */
1411 unsigned int i, num;
1412 Window d1, d2, *wins = NULL;
1413 XWindowAttributes wa;
1415 if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
1416 for(i = 0; i < num; i++) {
1417 if(!XGetWindowAttributes(dpy, wins[i], &wa)
1418 || wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
1420 if(wa.map_state == IsViewable || getstate(wins[i]) == IconicState)
1421 manage(wins[i], &wa);
1423 for(i = 0; i < num; i++) { /* now the transients */
1424 if(!XGetWindowAttributes(dpy, wins[i], &wa))
1426 if(XGetTransientForHint(dpy, wins[i], &d1)
1427 && (wa.map_state == IsViewable || getstate(wins[i]) == IconicState))
1428 manage(wins[i], &wa);
1436 sendmon(Client *c, Monitor *m) {
1443 c->tags = m->tagset[m->seltags]; /* assign tags of target monitor */
1451 setclientstate(Client *c, long state) {
1452 long data[] = { state, None };
1454 XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,
1455 PropModeReplace, (unsigned char *)data, 2);
1459 sendevent(Client *c, Atom proto) {
1462 Bool exists = False;
1465 if(XGetWMProtocols(dpy, c->win, &protocols, &n)) {
1466 while(!exists && n--)
1467 exists = protocols[n] == proto;
1471 ev.type = ClientMessage;
1472 ev.xclient.window = c->win;
1473 ev.xclient.message_type = wmatom[WMProtocols];
1474 ev.xclient.format = 32;
1475 ev.xclient.data.l[0] = proto;
1476 ev.xclient.data.l[1] = CurrentTime;
1477 XSendEvent(dpy, c->win, False, NoEventMask, &ev);
1483 setfocus(Client *c) {
1484 if(!c->neverfocus) {
1485 XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
1486 XChangeProperty(dpy, root, netatom[NetActiveWindow],
1487 XA_WINDOW, 32, PropModeReplace,
1488 (unsigned char *) &(c->win), 1);
1490 sendevent(c, wmatom[WMTakeFocus]);
1494 setfullscreen(Client *c, Bool fullscreen) {
1496 XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
1497 PropModeReplace, (unsigned char*)&netatom[NetWMFullscreen], 1);
1498 c->isfullscreen = True;
1499 c->oldstate = c->isfloating;
1502 c->isfloating = True;
1503 resizeclient(c, c->mon->mx, c->mon->my, c->mon->mw, c->mon->mh);
1504 XRaiseWindow(dpy, c->win);
1507 XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
1508 PropModeReplace, (unsigned char*)0, 0);
1509 c->isfullscreen = False;
1510 c->isfloating = c->oldstate;
1516 resizeclient(c, c->x, c->y, c->w, c->h);
1522 setlayout(const Arg *arg) {
1523 if(!arg || !arg->v || arg->v != selmon->lt[selmon->sellt])
1526 selmon->lt[selmon->sellt] = (Layout *)arg->v;
1527 strncpy(selmon->ltsymbol, selmon->lt[selmon->sellt]->symbol, sizeof selmon->ltsymbol);
1534 /* arg > 1.0 will set mfact absolutly */
1536 setmfact(const Arg *arg) {
1539 if(!arg || !selmon->lt[selmon->sellt]->arrange)
1541 f = arg->f < 1.0 ? arg->f + selmon->mfact : arg->f - 1.0;
1542 if(f < 0.1 || f > 0.9)
1550 XSetWindowAttributes wa;
1552 /* clean up any zombies immediately */
1556 screen = DefaultScreen(dpy);
1557 root = RootWindow(dpy, screen);
1558 fnt = drw_font_create(dpy, font);
1559 sw = DisplayWidth(dpy, screen);
1560 sh = DisplayHeight(dpy, screen);
1562 drw = drw_create(dpy, screen, root, sw, sh);
1563 drw_setfont(drw, fnt);
1566 wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
1567 wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
1568 wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);
1569 wmatom[WMTakeFocus] = XInternAtom(dpy, "WM_TAKE_FOCUS", False);
1570 netatom[NetActiveWindow] = XInternAtom(dpy, "_NET_ACTIVE_WINDOW", False);
1571 netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
1572 netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
1573 netatom[NetWMState] = XInternAtom(dpy, "_NET_WM_STATE", False);
1574 netatom[NetWMFullscreen] = XInternAtom(dpy, "_NET_WM_STATE_FULLSCREEN", False);
1575 netatom[NetWMWindowOpacity] = XInternAtom(dpy, "_NET_WM_WINDOW_OPACITY", False);
1576 netatom[NetWMWindowType] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False);
1577 netatom[NetWMWindowTypeDialog] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False);
1578 netatom[NetClientList] = XInternAtom(dpy, "_NET_CLIENT_LIST", False);
1580 cursor[CurNormal] = drw_cur_create(drw, XC_left_ptr);
1581 cursor[CurResize] = drw_cur_create(drw, XC_sizing);
1582 cursor[CurMove] = drw_cur_create(drw, XC_fleur);
1583 /* init appearance */
1584 scheme[SchemeNorm].border = drw_clr_create(drw, normbordercolor);
1585 scheme[SchemeNorm].bg = drw_clr_create(drw, normbgcolor);
1586 scheme[SchemeNorm].fg = drw_clr_create(drw, normfgcolor);
1587 scheme[SchemeSel].border = drw_clr_create(drw, selbordercolor);
1588 scheme[SchemeSel].bg = drw_clr_create(drw, selbgcolor);
1589 scheme[SchemeSel].fg = drw_clr_create(drw, selfgcolor);
1593 /* EWMH support per view */
1594 XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
1595 PropModeReplace, (unsigned char *) netatom, NetLast);
1596 XDeleteProperty(dpy, root, netatom[NetClientList]);
1597 /* select for events */
1598 wa.cursor = cursor[CurNormal]->cursor;
1599 wa.event_mask = SubstructureRedirectMask|SubstructureNotifyMask|ButtonPressMask|PointerMotionMask
1600 |EnterWindowMask|LeaveWindowMask|StructureNotifyMask|PropertyChangeMask;
1601 XChangeWindowAttributes(dpy, root, CWEventMask|CWCursor, &wa);
1602 XSelectInput(dpy, root, wa.event_mask);
1608 showhide(Client *c) {
1611 if(ISVISIBLE(c)) { /* show clients top down */
1612 XMoveWindow(dpy, c->win, c->x, c->y);
1613 if((!c->mon->lt[c->mon->sellt]->arrange || c->isfloating) && !c->isfullscreen)
1614 resize(c, c->x, c->y, c->w, c->h, False);
1617 else { /* hide clients bottom up */
1619 XMoveWindow(dpy, c->win, WIDTH(c) * -2, c->y);
1624 sigchld(int unused) {
1625 if(signal(SIGCHLD, sigchld) == SIG_ERR)
1626 die("Can't install SIGCHLD handler");
1627 while(0 < waitpid(-1, NULL, WNOHANG));
1631 spawn(const Arg *arg) {
1632 if(arg->v == dmenucmd)
1633 dmenumon[0] = '0' + selmon->num;
1636 close(ConnectionNumber(dpy));
1638 execvp(((char **)arg->v)[0], (char **)arg->v);
1639 fprintf(stderr, "dwm: execvp %s", ((char **)arg->v)[0]);
1646 tag(const Arg *arg) {
1647 if(selmon->sel && arg->ui & TAGMASK) {
1648 selmon->sel->tags = arg->ui & TAGMASK;
1655 tagmon(const Arg *arg) {
1656 if(!selmon->sel || !mons->next)
1658 sendmon(selmon->sel, dirtomon(arg->i));
1663 unsigned int i, n, h, mw, my, ty;
1666 for(n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
1671 mw = m->nmaster ? m->ww * m->mfact : 0;
1674 for(i = my = ty = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
1675 if(i < m->nmaster) {
1676 h = (m->wh - my) / (MIN(n, m->nmaster) - i);
1677 resize(c, m->wx, m->wy + my, mw - (2*c->bw), h - (2*c->bw), False);
1681 h = (m->wh - ty) / (n - i);
1682 resize(c, m->wx + mw, m->wy + ty, m->ww - mw - (2*c->bw), h - (2*c->bw), False);
1688 togglebar(const Arg *arg) {
1689 selmon->showbar = !selmon->showbar;
1690 updatebarpos(selmon);
1691 XMoveResizeWindow(dpy, selmon->barwin, selmon->wx, selmon->by, selmon->ww, bh);
1696 togglefloating(const Arg *arg) {
1699 if(selmon->sel->isfullscreen) /* no support for fullscreen windows */
1701 selmon->sel->isfloating = !selmon->sel->isfloating || selmon->sel->isfixed;
1702 if(selmon->sel->isfloating)
1703 resize(selmon->sel, selmon->sel->x, selmon->sel->y,
1704 selmon->sel->w, selmon->sel->h, False);
1709 toggletag(const Arg *arg) {
1710 unsigned int newtags;
1714 newtags = selmon->sel->tags ^ (arg->ui & TAGMASK);
1716 selmon->sel->tags = newtags;
1723 toggleview(const Arg *arg) {
1724 unsigned int newtagset = selmon->tagset[selmon->seltags] ^ (arg->ui & TAGMASK);
1727 selmon->tagset[selmon->seltags] = newtagset;
1734 unfocus(Client *c, Bool setfocus) {
1737 if(!root || c->win!=root)
1738 window_set_translucent(c);
1739 grabbuttons(c, False);
1740 XSetWindowBorder(dpy, c->win, scheme[SchemeNorm].border->rgb);
1742 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
1743 XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
1748 unmanage(Client *c, Bool destroyed) {
1749 Monitor *m = c->mon;
1752 /* The server grab construct avoids race conditions. */
1756 wc.border_width = c->oldbw;
1758 XSetErrorHandler(xerrordummy);
1759 XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */
1760 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
1761 setclientstate(c, WithdrawnState);
1763 XSetErrorHandler(xerror);
1767 focus(selmon ? selmon->sel : NULL);
1773 unmapnotify(XEvent *e) {
1775 XUnmapEvent *ev = &e->xunmap;
1777 if((c = wintoclient(ev->window))) {
1779 setclientstate(c, WithdrawnState);
1788 XSetWindowAttributes wa = {
1789 .override_redirect = True,
1790 .background_pixmap = ParentRelative,
1791 .event_mask = ButtonPressMask|ExposureMask
1793 for(m = mons; m; m = m->next) {
1796 m->barwin = XCreateWindow(dpy, root, m->wx, m->by, m->ww, bh, 0, DefaultDepth(dpy, screen),
1797 CopyFromParent, DefaultVisual(dpy, screen),
1798 CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
1799 XDefineCursor(dpy, m->barwin, cursor[CurNormal]->cursor);
1800 XMapRaised(dpy, m->barwin);
1805 updatebarpos(Monitor *m) {
1810 m->by = m->topbar ? m->wy : m->wy + m->wh;
1811 m->wy = m->topbar ? m->wy + bh : m->wy;
1818 updateclientlist() {
1822 XDeleteProperty(dpy, root, netatom[NetClientList]);
1823 for(m = mons; m; m = m->next)
1824 for(c = m->clients; c; c = c->next)
1825 XChangeProperty(dpy, root, netatom[NetClientList],
1826 XA_WINDOW, 32, PropModeAppend,
1827 (unsigned char *) &(c->win), 1);
1835 if(XineramaIsActive(dpy)) {
1839 XineramaScreenInfo *info = XineramaQueryScreens(dpy, &nn);
1840 XineramaScreenInfo *unique = NULL;
1842 for(n = 0, m = mons; m; m = m->next, n++);
1843 /* only consider unique geometries as separate screens */
1844 if(!(unique = (XineramaScreenInfo *)malloc(sizeof(XineramaScreenInfo) * nn)))
1845 die("fatal: could not malloc() %u bytes\n", sizeof(XineramaScreenInfo) * nn);
1846 for(i = 0, j = 0; i < nn; i++)
1847 if(isuniquegeom(unique, j, &info[i]))
1848 memcpy(&unique[j++], &info[i], sizeof(XineramaScreenInfo));
1852 for(i = 0; i < (nn - n); i++) { /* new monitors available */
1853 for(m = mons; m && m->next; m = m->next);
1855 m->next = createmon();
1859 for(i = 0, m = mons; i < nn && m; m = m->next, i++)
1861 || (unique[i].x_org != m->mx || unique[i].y_org != m->my
1862 || unique[i].width != m->mw || unique[i].height != m->mh))
1866 m->mx = m->wx = unique[i].x_org;
1867 m->my = m->wy = unique[i].y_org;
1868 m->mw = m->ww = unique[i].width;
1869 m->mh = m->wh = unique[i].height;
1873 else { /* less monitors available nn < n */
1874 for(i = nn; i < n; i++) {
1875 for(m = mons; m && m->next; m = m->next);
1879 m->clients = c->next;
1893 #endif /* XINERAMA */
1894 /* default monitor setup */
1898 if(mons->mw != sw || mons->mh != sh) {
1900 mons->mw = mons->ww = sw;
1901 mons->mh = mons->wh = sh;
1907 selmon = wintomon(root);
1913 updatenumlockmask(void) {
1915 XModifierKeymap *modmap;
1918 modmap = XGetModifierMapping(dpy);
1919 for(i = 0; i < 8; i++)
1920 for(j = 0; j < modmap->max_keypermod; j++)
1921 if(modmap->modifiermap[i * modmap->max_keypermod + j]
1922 == XKeysymToKeycode(dpy, XK_Num_Lock))
1923 numlockmask = (1 << i);
1924 XFreeModifiermap(modmap);
1928 updatesizehints(Client *c) {
1932 if(!XGetWMNormalHints(dpy, c->win, &size, &msize))
1933 /* size is uninitialized, ensure that size.flags aren't used */
1935 if(size.flags & PBaseSize) {
1936 c->basew = size.base_width;
1937 c->baseh = size.base_height;
1939 else if(size.flags & PMinSize) {
1940 c->basew = size.min_width;
1941 c->baseh = size.min_height;
1944 c->basew = c->baseh = 0;
1945 if(size.flags & PResizeInc) {
1946 c->incw = size.width_inc;
1947 c->inch = size.height_inc;
1950 c->incw = c->inch = 0;
1951 if(size.flags & PMaxSize) {
1952 c->maxw = size.max_width;
1953 c->maxh = size.max_height;
1956 c->maxw = c->maxh = 0;
1957 if(size.flags & PMinSize) {
1958 c->minw = size.min_width;
1959 c->minh = size.min_height;
1961 else if(size.flags & PBaseSize) {
1962 c->minw = size.base_width;
1963 c->minh = size.base_height;
1966 c->minw = c->minh = 0;
1967 if(size.flags & PAspect) {
1968 c->mina = (float)size.min_aspect.y / size.min_aspect.x;
1969 c->maxa = (float)size.max_aspect.x / size.max_aspect.y;
1972 c->maxa = c->mina = 0.0;
1973 c->isfixed = (c->maxw && c->minw && c->maxh && c->minh
1974 && c->maxw == c->minw && c->maxh == c->minh);
1978 updatetitle(Client *c) {
1979 if(!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
1980 gettextprop(c->win, XA_WM_NAME, c->name, sizeof c->name);
1981 if(c->name[0] == '\0') /* hack to mark broken clients */
1982 strcpy(c->name, broken);
1986 updatestatus(void) {
1987 if(!gettextprop(root, XA_WM_NAME, stext, sizeof(stext)))
1988 strcpy(stext, "dwm-"VERSION);
1993 updatewindowtype(Client *c) {
1994 Atom state = getatomprop(c, netatom[NetWMState]);
1995 Atom wtype = getatomprop(c, netatom[NetWMWindowType]);
1997 if(state == netatom[NetWMFullscreen])
1998 setfullscreen(c, True);
1999 if(wtype == netatom[NetWMWindowTypeDialog])
2000 c->isfloating = True;
2004 updatewmhints(Client *c) {
2007 if((wmh = XGetWMHints(dpy, c->win))) {
2008 if(c == selmon->sel && wmh->flags & XUrgencyHint) {
2009 wmh->flags &= ~XUrgencyHint;
2010 XSetWMHints(dpy, c->win, wmh);
2013 c->isurgent = (wmh->flags & XUrgencyHint) ? True : False;
2014 if(wmh->flags & InputHint)
2015 c->neverfocus = !wmh->input;
2017 c->neverfocus = False;
2023 view(const Arg *arg) {
2024 if((arg->ui & TAGMASK) == selmon->tagset[selmon->seltags])
2026 selmon->seltags ^= 1; /* toggle sel tagset */
2027 if(arg->ui & TAGMASK)
2028 selmon->tagset[selmon->seltags] = arg->ui & TAGMASK;
2034 wintoclient(Window w) {
2038 for(m = mons; m; m = m->next)
2039 for(c = m->clients; c; c = c->next)
2046 wintomon(Window w) {
2051 if(w == root && getrootptr(&x, &y))
2052 return recttomon(x, y, 1, 1);
2053 for(m = mons; m; m = m->next)
2056 if((c = wintoclient(w)))
2061 /* There's no way to check accesses to destroyed windows, thus those cases are
2062 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
2063 * default error handler, which may call exit. */
2065 xerror(Display *dpy, XErrorEvent *ee) {
2066 if(ee->error_code == BadWindow
2067 || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
2068 || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
2069 || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
2070 || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
2071 || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
2072 || (ee->request_code == X_GrabButton && ee->error_code == BadAccess)
2073 || (ee->request_code == X_GrabKey && ee->error_code == BadAccess)
2074 || (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
2076 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
2077 ee->request_code, ee->error_code);
2078 return xerrorxlib(dpy, ee); /* may call exit */
2082 xerrordummy(Display *dpy, XErrorEvent *ee) {
2086 /* Startup Error handler to check if another window manager
2087 * is already running. */
2089 xerrorstart(Display *dpy, XErrorEvent *ee) {
2090 die("dwm: another window manager is already running\n");
2095 zoom(const Arg *arg) {
2096 Client *c = selmon->sel;
2098 if(!selmon->lt[selmon->sellt]->arrange
2099 || (selmon->sel && selmon->sel->isfloating))
2101 if(c == nexttiled(selmon->clients))
2102 if(!c || !(c = nexttiled(c->next)))
2108 main(int argc, char *argv[]) {
2109 if(argc == 2 && !strcmp("-v", argv[1]))
2110 die("dwm-"VERSION", © 2006-2014 dwm engineers, see LICENSE for details\n");
2112 die("usage: dwm [-v]\n");
2113 if(!setlocale(LC_CTYPE, "") || !XSupportsLocale())
2114 fputs("warning: no locale support\n", stderr);
2115 if(!(dpy = XOpenDisplay(NULL)))
2116 die("dwm: cannot open display\n");
2123 return EXIT_SUCCESS;