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>
44 #define BUTTONMASK (ButtonPressMask|ButtonReleaseMask)
45 #define CLEANMASK(mask) (mask & ~(numlockmask|LockMask) & (ShiftMask|ControlMask|Mod1Mask|Mod2Mask|Mod3Mask|Mod4Mask|Mod5Mask))
46 #define INRECT(X,Y,RX,RY,RW,RH) ((X) >= (RX) && (X) < (RX) + (RW) && (Y) >= (RY) && (Y) < (RY) + (RH))
47 #define ISVISIBLE(C) ((C->tags & C->mon->tagset[C->mon->seltags]))
48 #define LENGTH(X) (sizeof X / sizeof X[0])
49 #define MAX(A, B) ((A) > (B) ? (A) : (B))
50 #define MIN(A, B) ((A) < (B) ? (A) : (B))
51 #define MOUSEMASK (BUTTONMASK|PointerMotionMask)
52 #define WIDTH(X) ((X)->w + 2 * (X)->bw)
53 #define HEIGHT(X) ((X)->h + 2 * (X)->bw)
54 #define TAGMASK ((1 << LENGTH(tags)) - 1)
55 #define TEXTW(X) (textnw(X, strlen(X)) + dc.font.height)
58 enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
59 enum { ColBorder, ColFG, ColBG, ColLast }; /* color */
60 enum { NetSupported, NetWMName, NetWMState,
61 NetWMFullscreen, NetActiveWindow, NetWMWindowType,
62 NetWMWindowTypeDialog, NetLast }; /* EWMH atoms */
63 enum { WMProtocols, WMDelete, WMState, WMTakeFocus, WMLast }; /* default atoms */
64 enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle,
65 ClkClientWin, ClkRootWin, ClkLast }; /* clicks */
78 void (*func)(const Arg *arg);
82 typedef struct Monitor Monitor;
83 typedef struct Client Client;
88 int oldx, oldy, oldw, oldh;
89 int basew, baseh, incw, inch, maxw, maxh, minw, minh;
92 Bool isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen;
101 unsigned long norm[ColLast];
102 unsigned long sel[ColLast];
112 } DC; /* draw context */
117 void (*func)(const Arg *);
123 void (*arrange)(Monitor *);
131 int by; /* bar geometry */
132 int mx, my, mw, mh; /* screen size */
133 int wx, wy, ww, wh; /* window area */
134 unsigned int seltags;
136 unsigned int tagset[2];
149 const char *instance;
156 /* function declarations */
157 static void applyrules(Client *c);
158 static Bool applysizehints(Client *c, int *x, int *y, int *w, int *h, Bool interact);
159 static void arrange(Monitor *m);
160 static void arrangemon(Monitor *m);
161 static void attach(Client *c);
162 static void attachstack(Client *c);
163 static void buttonpress(XEvent *e);
164 static void checkotherwm(void);
165 static void cleanup(void);
166 static void cleanupmon(Monitor *mon);
167 static void clearurgent(Client *c);
168 static void clientmessage(XEvent *e);
169 static void configure(Client *c);
170 static void configurenotify(XEvent *e);
171 static void configurerequest(XEvent *e);
172 static Monitor *createmon(void);
173 static void destroynotify(XEvent *e);
174 static void detach(Client *c);
175 static void detachstack(Client *c);
176 static void die(const char *errstr, ...);
177 static Monitor *dirtomon(int dir);
178 static void drawbar(Monitor *m);
179 static void drawbars(void);
180 static void drawsquare(Bool filled, Bool empty, Bool invert, unsigned long col[ColLast]);
181 static void drawtext(const char *text, unsigned long col[ColLast], Bool invert);
182 static void enternotify(XEvent *e);
183 static void expose(XEvent *e);
184 static void focus(Client *c);
185 static void focusin(XEvent *e);
186 static void focusmon(const Arg *arg);
187 static void focusstack(const Arg *arg);
188 static unsigned long getcolor(const char *colstr);
189 static Bool getrootptr(int *x, int *y);
190 static long getstate(Window w);
191 static Bool gettextprop(Window w, Atom atom, char *text, unsigned int size);
192 static void grabbuttons(Client *c, Bool focused);
193 static void grabkeys(void);
194 static void incnmaster(const Arg *arg);
195 static void initfont(const char *fontstr);
196 static void keypress(XEvent *e);
197 static void killclient(const Arg *arg);
198 static void manage(Window w, XWindowAttributes *wa);
199 static void mappingnotify(XEvent *e);
200 static void maprequest(XEvent *e);
201 static void monocle(Monitor *m);
202 static void movemouse(const Arg *arg);
203 static Client *nexttiled(Client *c);
204 static void pop(Client *);
205 static void propertynotify(XEvent *e);
206 static Monitor *ptrtomon(int x, int y);
207 static void quit(const Arg *arg);
208 static void resize(Client *c, int x, int y, int w, int h, Bool interact);
209 static void resizeclient(Client *c, int x, int y, int w, int h);
210 static void resizemouse(const Arg *arg);
211 static void restack(Monitor *m);
212 static void run(void);
213 static void scan(void);
214 static Bool sendevent(Client *c, Atom proto);
215 static void sendmon(Client *c, Monitor *m);
216 static void setclientstate(Client *c, long state);
217 static void setfocus(Client *c);
218 static void setlayout(const Arg *arg);
219 static void setmfact(const Arg *arg);
220 static void setup(void);
221 static void showhide(Client *c);
222 static void sigchld(int unused);
223 static void spawn(const Arg *arg);
224 static void tag(const Arg *arg);
225 static void tagmon(const Arg *arg);
226 static int textnw(const char *text, unsigned int len);
227 static void tile(Monitor *);
228 static void togglebar(const Arg *arg);
229 static void togglefloating(const Arg *arg);
230 static void toggletag(const Arg *arg);
231 static void toggleview(const Arg *arg);
232 static void unfocus(Client *c, Bool setfocus);
233 static void unmanage(Client *c, Bool destroyed);
234 static void unmapnotify(XEvent *e);
235 static Bool updategeom(void);
236 static void updatebarpos(Monitor *m);
237 static void updatebars(void);
238 static void updatenumlockmask(void);
239 static void updatesizehints(Client *c);
240 static void updatestatus(void);
241 static void updatewindowtype(Client *c);
242 static void updatetitle(Client *c);
243 static void updatewmhints(Client *c);
244 static void view(const Arg *arg);
245 static Client *wintoclient(Window w);
246 static Monitor *wintomon(Window w);
247 static int xerror(Display *dpy, XErrorEvent *ee);
248 static int xerrordummy(Display *dpy, XErrorEvent *ee);
249 static int xerrorstart(Display *dpy, XErrorEvent *ee);
250 static void zoom(const Arg *arg);
253 static const char broken[] = "broken";
254 static char stext[256];
256 static int sw, sh; /* X display screen geometry width, height */
257 static int bh, blw = 0; /* bar geometry */
258 static int (*xerrorxlib)(Display *, XErrorEvent *);
259 static unsigned int numlockmask = 0;
260 static void (*handler[LASTEvent]) (XEvent *) = {
261 [ButtonPress] = buttonpress,
262 [ClientMessage] = clientmessage,
263 [ConfigureRequest] = configurerequest,
264 [ConfigureNotify] = configurenotify,
265 [DestroyNotify] = destroynotify,
266 [EnterNotify] = enternotify,
269 [KeyPress] = keypress,
270 [MappingNotify] = mappingnotify,
271 [MapRequest] = maprequest,
272 [PropertyNotify] = propertynotify,
273 [UnmapNotify] = unmapnotify
275 static Atom wmatom[WMLast], netatom[NetLast];
276 static Bool running = True;
277 static Cursor cursor[CurLast];
280 static Monitor *mons = NULL, *selmon = NULL;
283 /* configuration, allows nested code to access above variables */
286 /* compile-time check if all tags fit into an unsigned int bit array. */
287 struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; };
289 /* function implementations */
291 applyrules(Client *c) {
292 const char *class, *instance;
296 XClassHint ch = { NULL, NULL };
299 c->isfloating = c->tags = 0;
300 XGetClassHint(dpy, c->win, &ch);
301 class = ch.res_class ? ch.res_class : broken;
302 instance = ch.res_name ? ch.res_name : broken;
304 for(i = 0; i < LENGTH(rules); i++) {
306 if((!r->title || strstr(c->name, r->title))
307 && (!r->class || strstr(class, r->class))
308 && (!r->instance || strstr(instance, r->instance)))
310 c->isfloating = r->isfloating;
312 for(m = mons; m && m->num != r->monitor; m = m->next);
321 c->tags = c->tags & TAGMASK ? c->tags & TAGMASK : c->mon->tagset[c->mon->seltags];
325 applysizehints(Client *c, int *x, int *y, int *w, int *h, Bool interact) {
329 /* set minimum possible */
337 if(*x + *w + 2 * c->bw < 0)
339 if(*y + *h + 2 * c->bw < 0)
343 if(*x >= m->wx + m->ww)
344 *x = m->wx + m->ww - WIDTH(c);
345 if(*y >= m->wy + m->wh)
346 *y = m->wy + m->wh - HEIGHT(c);
347 if(*x + *w + 2 * c->bw <= m->wx)
349 if(*y + *h + 2 * c->bw <= m->wy)
356 if(resizehints || c->isfloating || !c->mon->lt[c->mon->sellt]->arrange) {
357 /* see last two sentences in ICCCM 4.1.2.3 */
358 baseismin = c->basew == c->minw && c->baseh == c->minh;
359 if(!baseismin) { /* temporarily remove base dimensions */
363 /* adjust for aspect limits */
364 if(c->mina > 0 && c->maxa > 0) {
365 if(c->maxa < (float)*w / *h)
366 *w = *h * c->maxa + 0.5;
367 else if(c->mina < (float)*h / *w)
368 *h = *w * c->mina + 0.5;
370 if(baseismin) { /* increment calculation requires this */
374 /* adjust for increment value */
379 /* restore base dimensions */
380 *w = MAX(*w + c->basew, c->minw);
381 *h = MAX(*h + c->baseh, c->minh);
383 *w = MIN(*w, c->maxw);
385 *h = MIN(*h, c->maxh);
387 return *x != c->x || *y != c->y || *w != c->w || *h != c->h;
391 arrange(Monitor *m) {
394 else for(m = mons; m; m = m->next)
398 else for(m = mons; m; m = m->next)
403 arrangemon(Monitor *m) {
404 strncpy(m->ltsymbol, m->lt[m->sellt]->symbol, sizeof m->ltsymbol);
405 if(m->lt[m->sellt]->arrange)
406 m->lt[m->sellt]->arrange(m);
412 c->next = c->mon->clients;
417 attachstack(Client *c) {
418 c->snext = c->mon->stack;
423 buttonpress(XEvent *e) {
424 unsigned int i, x, click;
428 XButtonPressedEvent *ev = &e->xbutton;
431 /* focus monitor if necessary */
432 if((m = wintomon(ev->window)) && m != selmon) {
433 unfocus(selmon->sel, True);
437 if(ev->window == selmon->barwin) {
441 while(ev->x >= x && ++i < LENGTH(tags));
442 if(i < LENGTH(tags)) {
446 else if(ev->x < x + blw)
448 else if(ev->x > selmon->ww - TEXTW(stext))
449 click = ClkStatusText;
453 else if((c = wintoclient(ev->window))) {
455 click = ClkClientWin;
457 for(i = 0; i < LENGTH(buttons); i++)
458 if(click == buttons[i].click && buttons[i].func && buttons[i].button == ev->button
459 && CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
460 buttons[i].func(click == ClkTagBar && buttons[i].arg.i == 0 ? &arg : &buttons[i].arg);
465 xerrorxlib = XSetErrorHandler(xerrorstart);
466 /* this causes an error if some other window manager is running */
467 XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask);
469 XSetErrorHandler(xerror);
476 Layout foo = { "", NULL };
480 selmon->lt[selmon->sellt] = &foo;
481 for(m = mons; m; m = m->next)
483 unmanage(m->stack, False);
485 XFreeFontSet(dpy, dc.font.set);
487 XFreeFont(dpy, dc.font.xfont);
488 XUngrabKey(dpy, AnyKey, AnyModifier, root);
489 XFreePixmap(dpy, dc.drawable);
491 XFreeCursor(dpy, cursor[CurNormal]);
492 XFreeCursor(dpy, cursor[CurResize]);
493 XFreeCursor(dpy, cursor[CurMove]);
497 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
501 cleanupmon(Monitor *mon) {
507 for(m = mons; m && m->next != mon; m = m->next);
510 XUnmapWindow(dpy, mon->barwin);
511 XDestroyWindow(dpy, mon->barwin);
516 clearurgent(Client *c) {
520 if(!(wmh = XGetWMHints(dpy, c->win)))
522 wmh->flags &= ~XUrgencyHint;
523 XSetWMHints(dpy, c->win, wmh);
528 clientmessage(XEvent *e) {
529 XClientMessageEvent *cme = &e->xclient;
530 Client *c = wintoclient(cme->window);
534 if(cme->message_type == netatom[NetWMState] && cme->data.l[1] == netatom[NetWMFullscreen]) {
535 if(cme->data.l[0] && !c->isfullscreen) {
536 XChangeProperty(dpy, cme->window, netatom[NetWMState], XA_ATOM, 32,
537 PropModeReplace, (unsigned char*)&netatom[NetWMFullscreen], 1);
538 c->isfullscreen = True;
539 c->oldstate = c->isfloating;
542 c->isfloating = True;
543 resizeclient(c, c->mon->mx, c->mon->my, c->mon->mw, c->mon->mh);
544 XRaiseWindow(dpy, c->win);
547 XChangeProperty(dpy, cme->window, netatom[NetWMState], XA_ATOM, 32,
548 PropModeReplace, (unsigned char*)0, 0);
549 c->isfullscreen = False;
550 c->isfloating = c->oldstate;
556 resizeclient(c, c->x, c->y, c->w, c->h);
560 else if(cme->message_type == netatom[NetActiveWindow]) {
562 c->mon->seltags ^= 1;
563 c->mon->tagset[c->mon->seltags] = c->tags;
570 configure(Client *c) {
573 ce.type = ConfigureNotify;
581 ce.border_width = c->bw;
583 ce.override_redirect = False;
584 XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce);
588 configurenotify(XEvent *e) {
590 XConfigureEvent *ev = &e->xconfigure;
593 if(ev->window == root) {
594 dirty = (sw != ev->width);
597 if(updategeom() || dirty) {
599 XFreePixmap(dpy, dc.drawable);
600 dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
602 for(m = mons; m; m = m->next)
603 XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, m->ww, bh);
611 configurerequest(XEvent *e) {
614 XConfigureRequestEvent *ev = &e->xconfigurerequest;
617 if((c = wintoclient(ev->window))) {
618 if(ev->value_mask & CWBorderWidth)
619 c->bw = ev->border_width;
620 else if(c->isfloating || !selmon->lt[selmon->sellt]->arrange) {
622 if(ev->value_mask & CWX) {
624 c->x = m->mx + ev->x;
626 if(ev->value_mask & CWY) {
628 c->y = m->my + ev->y;
630 if(ev->value_mask & CWWidth) {
634 if(ev->value_mask & CWHeight) {
638 if((c->x + c->w) > m->mx + m->mw && c->isfloating)
639 c->x = m->mx + (m->mw / 2 - WIDTH(c) / 2); /* center in x direction */
640 if((c->y + c->h) > m->my + m->mh && c->isfloating)
641 c->y = m->my + (m->mh / 2 - HEIGHT(c) / 2); /* center in y direction */
642 if((ev->value_mask & (CWX|CWY)) && !(ev->value_mask & (CWWidth|CWHeight)))
645 XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
653 wc.width = ev->width;
654 wc.height = ev->height;
655 wc.border_width = ev->border_width;
656 wc.sibling = ev->above;
657 wc.stack_mode = ev->detail;
658 XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
667 if(!(m = (Monitor *)calloc(1, sizeof(Monitor))))
668 die("fatal: could not malloc() %u bytes\n", sizeof(Monitor));
669 m->tagset[0] = m->tagset[1] = 1;
671 m->nmaster = nmaster;
672 m->showbar = showbar;
674 m->lt[0] = &layouts[0];
675 m->lt[1] = &layouts[1 % LENGTH(layouts)];
676 strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol);
681 destroynotify(XEvent *e) {
683 XDestroyWindowEvent *ev = &e->xdestroywindow;
685 if((c = wintoclient(ev->window)))
693 for(tc = &c->mon->clients; *tc && *tc != c; tc = &(*tc)->next);
698 detachstack(Client *c) {
701 for(tc = &c->mon->stack; *tc && *tc != c; tc = &(*tc)->snext);
704 if(c == c->mon->sel) {
705 for(t = c->mon->stack; t && !ISVISIBLE(t); t = t->snext);
711 die(const char *errstr, ...) {
714 va_start(ap, errstr);
715 vfprintf(stderr, errstr, ap);
725 if(!(m = selmon->next))
728 else if(selmon == mons)
729 for(m = mons; m->next; m = m->next);
731 for(m = mons; m->next != selmon; m = m->next);
736 drawbar(Monitor *m) {
738 unsigned int i, occ = 0, urg = 0;
742 for(c = m->clients; c; c = c->next) {
748 for(i = 0; i < LENGTH(tags); i++) {
749 dc.w = TEXTW(tags[i]);
750 col = m->tagset[m->seltags] & 1 << i ? dc.sel : dc.norm;
751 drawtext(tags[i], col, urg & 1 << i);
752 drawsquare(m == selmon && selmon->sel && selmon->sel->tags & 1 << i,
753 occ & 1 << i, urg & 1 << i, col);
756 dc.w = blw = TEXTW(m->ltsymbol);
757 drawtext(m->ltsymbol, dc.norm, False);
760 if(m == selmon) { /* status is only drawn on selected monitor */
767 drawtext(stext, dc.norm, False);
771 if((dc.w = dc.x - x) > bh) {
774 col = m == selmon ? dc.sel : dc.norm;
775 drawtext(m->sel->name, col, False);
776 drawsquare(m->sel->isfixed, m->sel->isfloating, False, col);
779 drawtext(NULL, dc.norm, False);
781 XCopyArea(dpy, dc.drawable, m->barwin, dc.gc, 0, 0, m->ww, bh, 0, 0);
789 for(m = mons; m; m = m->next)
794 drawsquare(Bool filled, Bool empty, Bool invert, unsigned long col[ColLast]) {
797 XSetForeground(dpy, dc.gc, col[invert ? ColBG : ColFG]);
798 x = (dc.font.ascent + dc.font.descent + 2) / 4;
800 XFillRectangle(dpy, dc.drawable, dc.gc, dc.x+1, dc.y+1, x+1, x+1);
802 XDrawRectangle(dpy, dc.drawable, dc.gc, dc.x+1, dc.y+1, x, x);
806 drawtext(const char *text, unsigned long col[ColLast], Bool invert) {
808 int i, x, y, h, len, olen;
810 XSetForeground(dpy, dc.gc, col[invert ? ColFG : ColBG]);
811 XFillRectangle(dpy, dc.drawable, dc.gc, dc.x, dc.y, dc.w, dc.h);
815 h = dc.font.ascent + dc.font.descent;
816 y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
818 /* shorten text if necessary */
819 for(len = MIN(olen, sizeof buf); len && textnw(text, len) > dc.w - h; len--);
822 memcpy(buf, text, len);
824 for(i = len; i && i > len - 3; buf[--i] = '.');
825 XSetForeground(dpy, dc.gc, col[invert ? ColBG : ColFG]);
827 XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
829 XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
833 enternotify(XEvent *e) {
836 XCrossingEvent *ev = &e->xcrossing;
838 if((ev->mode != NotifyNormal || ev->detail == NotifyInferior) && ev->window != root)
840 c = wintoclient(ev->window);
841 m = c ? c->mon : wintomon(ev->window);
843 unfocus(selmon->sel, True);
846 else if(!c || c == selmon->sel)
854 XExposeEvent *ev = &e->xexpose;
856 if(ev->count == 0 && (m = wintomon(ev->window)))
862 if(!c || !ISVISIBLE(c))
863 for(c = selmon->stack; c && !ISVISIBLE(c); c = c->snext);
864 /* was if(selmon->sel) */
865 if(selmon->sel && selmon->sel != c)
866 unfocus(selmon->sel, False);
874 grabbuttons(c, True);
875 XSetWindowBorder(dpy, c->win, dc.sel[ColBorder]);
879 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
885 focusin(XEvent *e) { /* there are some broken focus acquiring clients */
886 XFocusChangeEvent *ev = &e->xfocus;
888 if(selmon->sel && ev->window != selmon->sel->win)
889 setfocus(selmon->sel);
893 focusmon(const Arg *arg) {
898 if((m = dirtomon(arg->i)) == selmon)
900 unfocus(selmon->sel, True);
906 focusstack(const Arg *arg) {
907 Client *c = NULL, *i;
912 for(c = selmon->sel->next; c && !ISVISIBLE(c); c = c->next);
914 for(c = selmon->clients; c && !ISVISIBLE(c); c = c->next);
917 for(i = selmon->clients; i != selmon->sel; i = i->next)
921 for(; i; i = i->next)
932 getcolor(const char *colstr) {
933 Colormap cmap = DefaultColormap(dpy, screen);
936 if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
937 die("error, cannot allocate color '%s'\n", colstr);
942 getrootptr(int *x, int *y) {
947 return XQueryPointer(dpy, root, &dummy, &dummy, x, y, &di, &di, &dui);
954 unsigned char *p = NULL;
955 unsigned long n, extra;
958 if(XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState],
959 &real, &format, &n, &extra, (unsigned char **)&p) != Success)
968 gettextprop(Window w, Atom atom, char *text, unsigned int size) {
973 if(!text || size == 0)
976 XGetTextProperty(dpy, w, &name, atom);
979 if(name.encoding == XA_STRING)
980 strncpy(text, (char *)name.value, size - 1);
982 if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success && n > 0 && *list) {
983 strncpy(text, *list, size - 1);
984 XFreeStringList(list);
987 text[size - 1] = '\0';
993 grabbuttons(Client *c, Bool focused) {
997 unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
998 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
1000 for(i = 0; i < LENGTH(buttons); i++)
1001 if(buttons[i].click == ClkClientWin)
1002 for(j = 0; j < LENGTH(modifiers); j++)
1003 XGrabButton(dpy, buttons[i].button,
1004 buttons[i].mask | modifiers[j],
1005 c->win, False, BUTTONMASK,
1006 GrabModeAsync, GrabModeSync, None, None);
1009 XGrabButton(dpy, AnyButton, AnyModifier, c->win, False,
1010 BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
1016 updatenumlockmask();
1019 unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
1022 XUngrabKey(dpy, AnyKey, AnyModifier, root);
1023 for(i = 0; i < LENGTH(keys); i++)
1024 if((code = XKeysymToKeycode(dpy, keys[i].keysym)))
1025 for(j = 0; j < LENGTH(modifiers); j++)
1026 XGrabKey(dpy, code, keys[i].mod | modifiers[j], root,
1027 True, GrabModeAsync, GrabModeAsync);
1032 incnmaster(const Arg *arg) {
1033 selmon->nmaster = MAX(selmon->nmaster + arg->i, 0);
1038 initfont(const char *fontstr) {
1039 char *def, **missing;
1042 dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
1045 fprintf(stderr, "dwm: missing fontset: %s\n", missing[n]);
1046 XFreeStringList(missing);
1049 XFontStruct **xfonts;
1052 dc.font.ascent = dc.font.descent = 0;
1053 XExtentsOfFontSet(dc.font.set);
1054 n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
1056 dc.font.ascent = MAX(dc.font.ascent, (*xfonts)->ascent);
1057 dc.font.descent = MAX(dc.font.descent,(*xfonts)->descent);
1062 if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))
1063 && !(dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
1064 die("error, cannot load font: '%s'\n", fontstr);
1065 dc.font.ascent = dc.font.xfont->ascent;
1066 dc.font.descent = dc.font.xfont->descent;
1068 dc.font.height = dc.font.ascent + dc.font.descent;
1073 isuniquegeom(XineramaScreenInfo *unique, size_t n, XineramaScreenInfo *info) {
1075 if(unique[n].x_org == info->x_org && unique[n].y_org == info->y_org
1076 && unique[n].width == info->width && unique[n].height == info->height)
1080 #endif /* XINERAMA */
1083 keypress(XEvent *e) {
1089 keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
1090 for(i = 0; i < LENGTH(keys); i++)
1091 if(keysym == keys[i].keysym
1092 && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
1094 keys[i].func(&(keys[i].arg));
1098 killclient(const Arg *arg) {
1101 if(!sendevent(selmon->sel, wmatom[WMDelete])) {
1103 XSetErrorHandler(xerrordummy);
1104 XSetCloseDownMode(dpy, DestroyAll);
1105 XKillClient(dpy, selmon->sel->win);
1107 XSetErrorHandler(xerror);
1113 manage(Window w, XWindowAttributes *wa) {
1114 Client *c, *t = NULL;
1115 Window trans = None;
1118 if(!(c = calloc(1, sizeof(Client))))
1119 die("fatal: could not malloc() %u bytes\n", sizeof(Client));
1122 if(XGetTransientForHint(dpy, w, &trans) && (t = wintoclient(trans))) {
1131 c->x = c->oldx = wa->x;
1132 c->y = c->oldy = wa->y;
1133 c->w = c->oldw = wa->width;
1134 c->h = c->oldh = wa->height;
1135 c->oldbw = wa->border_width;
1136 if(c->w == c->mon->mw && c->h == c->mon->mh) {
1137 c->isfloating = True; // regression with flash, XXXX
1143 if(c->x + WIDTH(c) > c->mon->mx + c->mon->mw)
1144 c->x = c->mon->mx + c->mon->mw - WIDTH(c);
1145 if(c->y + HEIGHT(c) > c->mon->my + c->mon->mh)
1146 c->y = c->mon->my + c->mon->mh - HEIGHT(c);
1147 c->x = MAX(c->x, c->mon->mx);
1148 /* only fix client y-offset, if the client center might cover the bar */
1149 c->y = MAX(c->y, ((c->mon->by == c->mon->my) && (c->x + (c->w / 2) >= c->mon->wx)
1150 && (c->x + (c->w / 2) < c->mon->wx + c->mon->ww)) ? bh : c->mon->my);
1153 wc.border_width = c->bw;
1154 XConfigureWindow(dpy, w, CWBorderWidth, &wc);
1155 XSetWindowBorder(dpy, w, dc.norm[ColBorder]);
1156 configure(c); /* propagates border_width, if size doesn't change */
1157 updatewindowtype(c);
1160 XSelectInput(dpy, w, EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask);
1161 grabbuttons(c, False);
1163 c->isfloating = c->oldstate = trans != None || c->isfixed;
1165 XRaiseWindow(dpy, c->win);
1168 XMoveResizeWindow(dpy, c->win, c->x + 2 * sw, c->y, c->w, c->h); /* some windows require this */
1169 setclientstate(c, NormalState);
1170 if (c->mon == selmon)
1171 unfocus(selmon->sel, False);
1174 XMapWindow(dpy, c->win);
1179 mappingnotify(XEvent *e) {
1180 XMappingEvent *ev = &e->xmapping;
1182 XRefreshKeyboardMapping(ev);
1183 if(ev->request == MappingKeyboard)
1188 maprequest(XEvent *e) {
1189 static XWindowAttributes wa;
1190 XMapRequestEvent *ev = &e->xmaprequest;
1192 if(!XGetWindowAttributes(dpy, ev->window, &wa))
1194 if(wa.override_redirect)
1196 if(!wintoclient(ev->window))
1197 manage(ev->window, &wa);
1201 monocle(Monitor *m) {
1205 for(c = m->clients; c; c = c->next)
1208 if(n > 0) /* override layout symbol */
1209 snprintf(m->ltsymbol, sizeof m->ltsymbol, "[%d]", n);
1210 for(c = nexttiled(m->clients); c; c = nexttiled(c->next))
1211 resize(c, m->wx, m->wy, m->ww - 2 * c->bw, m->wh - 2 * c->bw, False);
1215 movemouse(const Arg *arg) {
1216 int x, y, ocx, ocy, nx, ny;
1221 if(!(c = selmon->sel))
1226 if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
1227 None, cursor[CurMove], CurrentTime) != GrabSuccess)
1229 if(!getrootptr(&x, &y))
1232 XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
1234 case ConfigureRequest:
1237 handler[ev.type](&ev);
1240 nx = ocx + (ev.xmotion.x - x);
1241 ny = ocy + (ev.xmotion.y - y);
1242 if(nx >= selmon->wx && nx <= selmon->wx + selmon->ww
1243 && ny >= selmon->wy && ny <= selmon->wy + selmon->wh) {
1244 if(abs(selmon->wx - nx) < snap)
1246 else if(abs((selmon->wx + selmon->ww) - (nx + WIDTH(c))) < snap)
1247 nx = selmon->wx + selmon->ww - WIDTH(c);
1248 if(abs(selmon->wy - ny) < snap)
1250 else if(abs((selmon->wy + selmon->wh) - (ny + HEIGHT(c))) < snap)
1251 ny = selmon->wy + selmon->wh - HEIGHT(c);
1252 if(!c->isfloating && selmon->lt[selmon->sellt]->arrange
1253 && (abs(nx - c->x) > snap || abs(ny - c->y) > snap))
1254 togglefloating(NULL);
1256 if(!selmon->lt[selmon->sellt]->arrange || c->isfloating)
1257 resize(c, nx, ny, c->w, c->h, True);
1260 } while(ev.type != ButtonRelease);
1261 XUngrabPointer(dpy, CurrentTime);
1262 if((m = ptrtomon(c->x + c->w / 2, c->y + c->h / 2)) != selmon) {
1270 nexttiled(Client *c) {
1271 for(; c && (c->isfloating || !ISVISIBLE(c)); c = c->next);
1284 propertynotify(XEvent *e) {
1287 XPropertyEvent *ev = &e->xproperty;
1289 if((ev->window == root) && (ev->atom == XA_WM_NAME))
1291 else if(ev->state == PropertyDelete)
1292 return; /* ignore */
1293 else if((c = wintoclient(ev->window))) {
1296 case XA_WM_TRANSIENT_FOR:
1297 if(!c->isfloating && (XGetTransientForHint(dpy, c->win, &trans)) &&
1298 (c->isfloating = (wintoclient(trans)) != NULL))
1301 case XA_WM_NORMAL_HINTS:
1309 if(ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
1311 if(c == c->mon->sel)
1314 if(ev->atom == netatom[NetWMWindowType])
1315 updatewindowtype(c);
1320 ptrtomon(int x, int y) {
1323 for(m = mons; m; m = m->next)
1324 if(INRECT(x, y, m->wx, m->wy, m->ww, m->wh))
1330 quit(const Arg *arg) {
1335 resize(Client *c, int x, int y, int w, int h, Bool interact) {
1336 if(applysizehints(c, &x, &y, &w, &h, interact))
1337 resizeclient(c, x, y, w, h);
1341 resizeclient(Client *c, int x, int y, int w, int h) {
1344 c->oldx = c->x; c->x = wc.x = x;
1345 c->oldy = c->y; c->y = wc.y = y;
1346 c->oldw = c->w; c->w = wc.width = w;
1347 c->oldh = c->h; c->h = wc.height = h;
1348 wc.border_width = c->bw;
1349 XConfigureWindow(dpy, c->win, CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc);
1355 resizemouse(const Arg *arg) {
1362 if(!(c = selmon->sel))
1367 if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
1368 None, cursor[CurResize], CurrentTime) != GrabSuccess)
1370 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
1372 XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
1374 case ConfigureRequest:
1377 handler[ev.type](&ev);
1380 nw = MAX(ev.xmotion.x - ocx - 2 * c->bw + 1, 1);
1381 nh = MAX(ev.xmotion.y - ocy - 2 * c->bw + 1, 1);
1382 if(c->mon->wx + nw >= selmon->wx && c->mon->wx + nw <= selmon->wx + selmon->ww
1383 && c->mon->wy + nh >= selmon->wy && c->mon->wy + nh <= selmon->wy + selmon->wh)
1385 if(!c->isfloating && selmon->lt[selmon->sellt]->arrange
1386 && (abs(nw - c->w) > snap || abs(nh - c->h) > snap))
1387 togglefloating(NULL);
1389 if(!selmon->lt[selmon->sellt]->arrange || c->isfloating)
1390 resize(c, c->x, c->y, nw, nh, True);
1393 } while(ev.type != ButtonRelease);
1394 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
1395 XUngrabPointer(dpy, CurrentTime);
1396 while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
1397 if((m = ptrtomon(c->x + c->w / 2, c->y + c->h / 2)) != selmon) {
1405 restack(Monitor *m) {
1413 if(m->sel->isfloating || !m->lt[m->sellt]->arrange)
1414 XRaiseWindow(dpy, m->sel->win);
1415 if(m->lt[m->sellt]->arrange) {
1416 wc.stack_mode = Below;
1417 wc.sibling = m->barwin;
1418 for(c = m->stack; c; c = c->snext)
1419 if(!c->isfloating && ISVISIBLE(c)) {
1420 XConfigureWindow(dpy, c->win, CWSibling|CWStackMode, &wc);
1421 wc.sibling = c->win;
1425 while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
1431 /* main event loop */
1433 while(running && !XNextEvent(dpy, &ev))
1434 if(handler[ev.type])
1435 handler[ev.type](&ev); /* call handler */
1440 unsigned int i, num;
1441 Window d1, d2, *wins = NULL;
1442 XWindowAttributes wa;
1444 if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
1445 for(i = 0; i < num; i++) {
1446 if(!XGetWindowAttributes(dpy, wins[i], &wa)
1447 || wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
1449 if(wa.map_state == IsViewable || getstate(wins[i]) == IconicState)
1450 manage(wins[i], &wa);
1452 for(i = 0; i < num; i++) { /* now the transients */
1453 if(!XGetWindowAttributes(dpy, wins[i], &wa))
1455 if(XGetTransientForHint(dpy, wins[i], &d1)
1456 && (wa.map_state == IsViewable || getstate(wins[i]) == IconicState))
1457 manage(wins[i], &wa);
1465 sendmon(Client *c, Monitor *m) {
1472 c->tags = m->tagset[m->seltags]; /* assign tags of target monitor */
1480 setclientstate(Client *c, long state) {
1481 long data[] = { state, None };
1483 XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,
1484 PropModeReplace, (unsigned char *)data, 2);
1488 sendevent(Client *c, Atom proto) {
1491 Bool exists = False;
1494 if(XGetWMProtocols(dpy, c->win, &protocols, &n)) {
1495 while(!exists && n--)
1496 exists = protocols[n] == proto;
1500 ev.type = ClientMessage;
1501 ev.xclient.window = c->win;
1502 ev.xclient.message_type = wmatom[WMProtocols];
1503 ev.xclient.format = 32;
1504 ev.xclient.data.l[0] = proto;
1505 ev.xclient.data.l[1] = CurrentTime;
1506 XSendEvent(dpy, c->win, False, NoEventMask, &ev);
1512 setfocus(Client *c) {
1514 XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
1515 sendevent(c, wmatom[WMTakeFocus]);
1519 setlayout(const Arg *arg) {
1520 if(!arg || !arg->v || arg->v != selmon->lt[selmon->sellt])
1523 selmon->lt[selmon->sellt] = (Layout *)arg->v;
1524 strncpy(selmon->ltsymbol, selmon->lt[selmon->sellt]->symbol, sizeof selmon->ltsymbol);
1531 /* arg > 1.0 will set mfact absolutly */
1533 setmfact(const Arg *arg) {
1536 if(!arg || !selmon->lt[selmon->sellt]->arrange)
1538 f = arg->f < 1.0 ? arg->f + selmon->mfact : arg->f - 1.0;
1539 if(f < 0.1 || f > 0.9)
1547 XSetWindowAttributes wa;
1549 /* clean up any zombies immediately */
1553 screen = DefaultScreen(dpy);
1554 root = RootWindow(dpy, screen);
1556 sw = DisplayWidth(dpy, screen);
1557 sh = DisplayHeight(dpy, screen);
1558 bh = dc.h = dc.font.height + 2;
1561 wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
1562 wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
1563 wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);
1564 wmatom[WMTakeFocus] = XInternAtom(dpy, "WM_TAKE_FOCUS", False);
1565 netatom[NetActiveWindow] = XInternAtom(dpy, "_NET_ACTIVE_WINDOW", False);
1566 netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
1567 netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
1568 netatom[NetWMState] = XInternAtom(dpy, "_NET_WM_STATE", False);
1569 netatom[NetWMFullscreen] = XInternAtom(dpy, "_NET_WM_STATE_FULLSCREEN", False);
1570 netatom[NetWMWindowType] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False);
1571 netatom[NetWMWindowTypeDialog] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False);
1573 cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
1574 cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
1575 cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
1576 /* init appearance */
1577 dc.norm[ColBorder] = getcolor(normbordercolor);
1578 dc.norm[ColBG] = getcolor(normbgcolor);
1579 dc.norm[ColFG] = getcolor(normfgcolor);
1580 dc.sel[ColBorder] = getcolor(selbordercolor);
1581 dc.sel[ColBG] = getcolor(selbgcolor);
1582 dc.sel[ColFG] = getcolor(selfgcolor);
1583 dc.drawable = XCreatePixmap(dpy, root, DisplayWidth(dpy, screen), bh, DefaultDepth(dpy, screen));
1584 dc.gc = XCreateGC(dpy, root, 0, NULL);
1585 XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
1587 XSetFont(dpy, dc.gc, dc.font.xfont->fid);
1591 /* EWMH support per view */
1592 XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
1593 PropModeReplace, (unsigned char *) netatom, NetLast);
1594 /* select for events */
1595 wa.cursor = cursor[CurNormal];
1596 wa.event_mask = SubstructureRedirectMask|SubstructureNotifyMask|ButtonPressMask
1597 |EnterWindowMask|LeaveWindowMask|StructureNotifyMask
1598 |PropertyChangeMask;
1599 XChangeWindowAttributes(dpy, root, CWEventMask|CWCursor, &wa);
1600 XSelectInput(dpy, root, wa.event_mask);
1605 showhide(Client *c) {
1608 if(ISVISIBLE(c)) { /* show clients top down */
1609 XMoveWindow(dpy, c->win, c->x, c->y);
1610 if((!c->mon->lt[c->mon->sellt]->arrange || c->isfloating) && !c->isfullscreen)
1611 resize(c, c->x, c->y, c->w, c->h, False);
1614 else { /* hide clients bottom up */
1616 XMoveWindow(dpy, c->win, WIDTH(c) * -2, c->y);
1621 sigchld(int unused) {
1622 if(signal(SIGCHLD, sigchld) == SIG_ERR)
1623 die("Can't install SIGCHLD handler");
1624 while(0 < waitpid(-1, NULL, WNOHANG));
1628 spawn(const Arg *arg) {
1631 close(ConnectionNumber(dpy));
1633 execvp(((char **)arg->v)[0], (char **)arg->v);
1634 fprintf(stderr, "dwm: execvp %s", ((char **)arg->v)[0]);
1641 tag(const Arg *arg) {
1642 if(selmon->sel && arg->ui & TAGMASK) {
1643 selmon->sel->tags = arg->ui & TAGMASK;
1650 tagmon(const Arg *arg) {
1651 if(!selmon->sel || !mons->next)
1653 sendmon(selmon->sel, dirtomon(arg->i));
1657 textnw(const char *text, unsigned int len) {
1661 XmbTextExtents(dc.font.set, text, len, NULL, &r);
1664 return XTextWidth(dc.font.xfont, text, len);
1669 unsigned int i, n, h, mw, my, ty;
1672 for(n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
1677 mw = m->nmaster ? m->ww * m->mfact : 0;
1680 for(i = my = ty = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
1681 if(i < m->nmaster) {
1682 h = (m->wh - my) / (MIN(n, m->nmaster) - i);
1683 resize(c, m->wx, m->wy + my, mw - (2*c->bw), h - (2*c->bw), False);
1687 h = (m->wh - ty) / (n - i);
1688 resize(c, m->wx + mw, m->wy + ty, m->ww - mw - (2*c->bw), h - (2*c->bw), False);
1694 togglebar(const Arg *arg) {
1695 selmon->showbar = !selmon->showbar;
1696 updatebarpos(selmon);
1697 XMoveResizeWindow(dpy, selmon->barwin, selmon->wx, selmon->by, selmon->ww, bh);
1702 togglefloating(const Arg *arg) {
1705 selmon->sel->isfloating = !selmon->sel->isfloating || selmon->sel->isfixed;
1706 if(selmon->sel->isfloating)
1707 resize(selmon->sel, selmon->sel->x, selmon->sel->y,
1708 selmon->sel->w, selmon->sel->h, False);
1713 toggletag(const Arg *arg) {
1714 unsigned int newtags;
1718 newtags = selmon->sel->tags ^ (arg->ui & TAGMASK);
1720 selmon->sel->tags = newtags;
1727 toggleview(const Arg *arg) {
1728 unsigned int newtagset = selmon->tagset[selmon->seltags] ^ (arg->ui & TAGMASK);
1731 selmon->tagset[selmon->seltags] = newtagset;
1738 unfocus(Client *c, Bool setfocus) {
1741 grabbuttons(c, False);
1742 XSetWindowBorder(dpy, c->win, dc.norm[ColBorder]);
1744 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
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);
1772 unmapnotify(XEvent *e) {
1774 XUnmapEvent *ev = &e->xunmap;
1776 if((c = wintoclient(ev->window))) {
1778 setclientstate(c, WithdrawnState);
1787 XSetWindowAttributes wa = {
1788 .override_redirect = True,
1789 .background_pixmap = ParentRelative,
1790 .event_mask = ButtonPressMask|ExposureMask
1792 for(m = mons; m; m = m->next) {
1793 m->barwin = XCreateWindow(dpy, root, m->wx, m->by, m->ww, bh, 0, DefaultDepth(dpy, screen),
1794 CopyFromParent, DefaultVisual(dpy, screen),
1795 CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
1796 XDefineCursor(dpy, m->barwin, cursor[CurNormal]);
1797 XMapRaised(dpy, m->barwin);
1802 updatebarpos(Monitor *m) {
1807 m->by = m->topbar ? m->wy : m->wy + m->wh;
1808 m->wy = m->topbar ? m->wy + bh : m->wy;
1819 if(XineramaIsActive(dpy)) {
1823 XineramaScreenInfo *info = XineramaQueryScreens(dpy, &nn);
1824 XineramaScreenInfo *unique = NULL;
1826 for(n = 0, m = mons; m; m = m->next, n++);
1827 /* only consider unique geometries as separate screens */
1828 if(!(unique = (XineramaScreenInfo *)malloc(sizeof(XineramaScreenInfo) * nn)))
1829 die("fatal: could not malloc() %u bytes\n", sizeof(XineramaScreenInfo) * nn);
1830 for(i = 0, j = 0; i < nn; i++)
1831 if(isuniquegeom(unique, j, &info[i]))
1832 memcpy(&unique[j++], &info[i], sizeof(XineramaScreenInfo));
1836 for(i = 0; i < (nn - n); i++) { /* new monitors available */
1837 for(m = mons; m && m->next; m = m->next);
1839 m->next = createmon();
1843 for(i = 0, m = mons; i < nn && m; m = m->next, i++)
1845 || (unique[i].x_org != m->mx || unique[i].y_org != m->my
1846 || unique[i].width != m->mw || unique[i].height != m->mh))
1850 m->mx = m->wx = unique[i].x_org;
1851 m->my = m->wy = unique[i].y_org;
1852 m->mw = m->ww = unique[i].width;
1853 m->mh = m->wh = unique[i].height;
1857 else { /* less monitors available nn < n */
1858 for(i = nn; i < n; i++) {
1859 for(m = mons; m && m->next; m = m->next);
1863 m->clients = c->next;
1877 #endif /* XINERAMA */
1878 /* default monitor setup */
1882 if(mons->mw != sw || mons->mh != sh) {
1884 mons->mw = mons->ww = sw;
1885 mons->mh = mons->wh = sh;
1891 selmon = wintomon(root);
1897 updatenumlockmask(void) {
1899 XModifierKeymap *modmap;
1902 modmap = XGetModifierMapping(dpy);
1903 for(i = 0; i < 8; i++)
1904 for(j = 0; j < modmap->max_keypermod; j++)
1905 if(modmap->modifiermap[i * modmap->max_keypermod + j]
1906 == XKeysymToKeycode(dpy, XK_Num_Lock))
1907 numlockmask = (1 << i);
1908 XFreeModifiermap(modmap);
1912 updatesizehints(Client *c) {
1916 if(!XGetWMNormalHints(dpy, c->win, &size, &msize))
1917 /* size is uninitialized, ensure that size.flags aren't used */
1919 if(size.flags & PBaseSize) {
1920 c->basew = size.base_width;
1921 c->baseh = size.base_height;
1923 else if(size.flags & PMinSize) {
1924 c->basew = size.min_width;
1925 c->baseh = size.min_height;
1928 c->basew = c->baseh = 0;
1929 if(size.flags & PResizeInc) {
1930 c->incw = size.width_inc;
1931 c->inch = size.height_inc;
1934 c->incw = c->inch = 0;
1935 if(size.flags & PMaxSize) {
1936 c->maxw = size.max_width;
1937 c->maxh = size.max_height;
1940 c->maxw = c->maxh = 0;
1941 if(size.flags & PMinSize) {
1942 c->minw = size.min_width;
1943 c->minh = size.min_height;
1945 else if(size.flags & PBaseSize) {
1946 c->minw = size.base_width;
1947 c->minh = size.base_height;
1950 c->minw = c->minh = 0;
1951 if(size.flags & PAspect) {
1952 c->mina = (float)size.min_aspect.y / size.min_aspect.x;
1953 c->maxa = (float)size.max_aspect.x / size.max_aspect.y;
1956 c->maxa = c->mina = 0.0;
1957 c->isfixed = (c->maxw && c->minw && c->maxh && c->minh
1958 && c->maxw == c->minw && c->maxh == c->minh);
1962 updatetitle(Client *c) {
1963 if(!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
1964 gettextprop(c->win, XA_WM_NAME, c->name, sizeof c->name);
1965 if(c->name[0] == '\0') /* hack to mark broken clients */
1966 strcpy(c->name, broken);
1970 updatestatus(void) {
1971 if(!gettextprop(root, XA_WM_NAME, stext, sizeof(stext)))
1972 strcpy(stext, "dwm-"VERSION);
1977 updatewindowtype(Client *c)
1981 unsigned long n, extra;
1982 unsigned char *p = NULL;
1984 if(XGetWindowProperty(dpy, c->win, netatom[NetWMWindowType], 0L,
1985 sizeof(Atom), False, XA_ATOM, &real, &format,
1986 &n, &extra, (unsigned char **)&p) == Success && p) {
1990 if(wtype == netatom[NetWMWindowTypeDialog])
1991 c->isfloating = True;
1996 updatewmhints(Client *c) {
1999 if((wmh = XGetWMHints(dpy, c->win))) {
2000 if(c == selmon->sel && wmh->flags & XUrgencyHint) {
2001 wmh->flags &= ~XUrgencyHint;
2002 XSetWMHints(dpy, c->win, wmh);
2005 c->isurgent = (wmh->flags & XUrgencyHint) ? True : False;
2006 if(wmh->flags & InputHint)
2007 c->neverfocus = !wmh->input;
2009 c->neverfocus = False;
2015 view(const Arg *arg) {
2016 if((arg->ui & TAGMASK) == selmon->tagset[selmon->seltags])
2018 selmon->seltags ^= 1; /* toggle sel tagset */
2019 if(arg->ui & TAGMASK)
2020 selmon->tagset[selmon->seltags] = arg->ui & TAGMASK;
2026 wintoclient(Window w) {
2030 for(m = mons; m; m = m->next)
2031 for(c = m->clients; c; c = c->next)
2038 wintomon(Window w) {
2043 if(w == root && getrootptr(&x, &y))
2044 return ptrtomon(x, y);
2045 for(m = mons; m; m = m->next)
2048 if((c = wintoclient(w)))
2053 /* There's no way to check accesses to destroyed windows, thus those cases are
2054 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
2055 * default error handler, which may call exit. */
2057 xerror(Display *dpy, XErrorEvent *ee) {
2058 if(ee->error_code == BadWindow
2059 || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
2060 || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
2061 || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
2062 || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
2063 || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
2064 || (ee->request_code == X_GrabButton && ee->error_code == BadAccess)
2065 || (ee->request_code == X_GrabKey && ee->error_code == BadAccess)
2066 || (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
2068 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
2069 ee->request_code, ee->error_code);
2070 return xerrorxlib(dpy, ee); /* may call exit */
2074 xerrordummy(Display *dpy, XErrorEvent *ee) {
2078 /* Startup Error handler to check if another window manager
2079 * is already running. */
2081 xerrorstart(Display *dpy, XErrorEvent *ee) {
2082 die("dwm: another window manager is already running\n");
2087 zoom(const Arg *arg) {
2088 Client *c = selmon->sel;
2090 if(!selmon->lt[selmon->sellt]->arrange
2091 || (selmon->sel && selmon->sel->isfloating))
2093 if(c == nexttiled(selmon->clients))
2094 if(!c || !(c = nexttiled(c->next)))
2100 main(int argc, char *argv[]) {
2101 if(argc == 2 && !strcmp("-v", argv[1]))
2102 die("dwm-"VERSION", © 2006-2011 dwm engineers, see LICENSE for details\n");
2104 die("usage: dwm [-v]\n");
2105 if(!setlocale(LC_CTYPE, "") || !XSupportsLocale())
2106 fputs("warning: no locale support\n", stderr);
2107 if(!(dpy = XOpenDisplay(NULL)))
2108 die("dwm: cannot open display\n");
2115 return EXIT_SUCCESS;