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comparison config/dwm/dwm.c @ 0:face7f4d84f7

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author Yasuri <yasuri@charliesmp.net>
date Mon, 28 Sep 2026 13:10:19 -0500
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1 /* See LICENSE file for copyright and license details.
2 *
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.
8 *
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
11 * in O(1) time.
12 *
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
17 * client.
18 *
19 * Keys and tagging rules are organized as arrays and defined in config.h.
20 *
21 * To understand everything else, start reading main().
22 */
23 #include <errno.h>
24 #include <locale.h>
25 #include <signal.h>
26 #include <stdarg.h>
27 #include <stdio.h>
28 #include <stdlib.h>
29 #include <string.h>
30 #include <unistd.h>
31 #include <sys/types.h>
32 #include <sys/wait.h>
33 #include <X11/cursorfont.h>
34 #include <X11/keysym.h>
35 #include <X11/Xatom.h>
36 #include <X11/Xlib.h>
37 #include <X11/Xproto.h>
38 #include <X11/Xutil.h>
39 #ifdef XINERAMA
40 #include <X11/extensions/Xinerama.h>
41 #endif /* XINERAMA */
42 #include <X11/Xft/Xft.h>
43
44 #include "drw.h"
45 #include "util.h"
46
47 /* macros */
48 #define BUTTONMASK (ButtonPressMask|ButtonReleaseMask)
49 #define CLEANMASK(mask) (mask & ~(numlockmask|LockMask) & (ShiftMask|ControlMask|Mod1Mask|Mod2Mask|Mod3Mask|Mod4Mask|Mod5Mask))
50 #define INTERSECT(x,y,w,h,m) (MAX(0, MIN((x)+(w),(m)->wx+(m)->ww) - MAX((x),(m)->wx)) \
51 * MAX(0, MIN((y)+(h),(m)->wy+(m)->wh) - MAX((y),(m)->wy)))
52 #define ISVISIBLE(C) ((C->tags & C->mon->tagset[C->mon->seltags]))
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_fontset_getwidth(drw, (X)) + lrpad)
58
59 /* enums */
60 enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
61 enum { SchemeNorm, SchemeSel }; /* color schemes */
62 enum { NetSupported, NetWMName, NetWMState, NetWMCheck,
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 */
68
69 typedef union {
70 int i;
71 unsigned int ui;
72 float f;
73 const void *v;
74 } Arg;
75
76 typedef struct {
77 unsigned int click;
78 unsigned int mask;
79 unsigned int button;
80 void (*func)(const Arg *arg);
81 const Arg arg;
82 } Button;
83
84 typedef struct Monitor Monitor;
85 typedef struct Client Client;
86 struct Client {
87 char name[256];
88 float mina, maxa;
89 float cfact;
90 int x, y, w, h;
91 int oldx, oldy, oldw, oldh;
92 int basew, baseh, incw, inch, maxw, maxh, minw, minh, hintsvalid;
93 int bw, oldbw;
94 unsigned int tags;
95 int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen;
96 Client *next;
97 Client *snext;
98 Monitor *mon;
99 Window win;
100 };
101
102 typedef struct {
103 unsigned int mod;
104 KeySym keysym;
105 void (*func)(const Arg *);
106 const Arg arg;
107 } Key;
108
109 typedef struct {
110 const char *symbol;
111 void (*arrange)(Monitor *);
112 } Layout;
113
114 struct Monitor {
115 char ltsymbol[16];
116 float mfact;
117 int nmaster;
118 int num;
119 int by; /* bar geometry */
120 int mx, my, mw, mh; /* screen size */
121 int wx, wy, ww, wh; /* window area */
122 int gappih; /* horizontal gap between windows */
123 int gappiv; /* vertical gap between windows */
124 int gappoh; /* horizontal outer gaps */
125 int gappov; /* vertical outer gaps */
126 unsigned int seltags;
127 unsigned int sellt;
128 unsigned int tagset[2];
129 int showbar;
130 int topbar;
131 Client *clients;
132 Client *sel;
133 Client *stack;
134 Monitor *next;
135 Window barwin;
136 const Layout *lt[2];
137 };
138
139 typedef struct {
140 const char *class;
141 const char *instance;
142 const char *title;
143 unsigned int tags;
144 int isfloating;
145 int monitor;
146 } Rule;
147
148 /* function declarations */
149 static void applyrules(Client *c);
150 static int applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact);
151 static void arrange(Monitor *m);
152 static void arrangemon(Monitor *m);
153 static void attach(Client *c);
154 static void attachstack(Client *c);
155 static void buttonpress(XEvent *e);
156 static void checkotherwm(void);
157 static void cleanup(void);
158 static void cleanupmon(Monitor *mon);
159 static void clientmessage(XEvent *e);
160 static void configure(Client *c);
161 static void configurenotify(XEvent *e);
162 static void configurerequest(XEvent *e);
163 static Monitor *createmon(void);
164 static void destroynotify(XEvent *e);
165 static void detach(Client *c);
166 static void detachstack(Client *c);
167 static Monitor *dirtomon(int dir);
168 static void drawbar(Monitor *m);
169 static void drawbars(void);
170 static void enternotify(XEvent *e);
171 static void expose(XEvent *e);
172 static void focus(Client *c);
173 static void focusin(XEvent *e);
174 static void focusmon(const Arg *arg);
175 static void focusstack(const Arg *arg);
176 static Atom getatomprop(Client *c, Atom prop);
177 static int getrootptr(int *x, int *y);
178 static long getstate(Window w);
179 static int gettextprop(Window w, Atom atom, char *text, unsigned int size);
180 static void grabbuttons(Client *c, int focused);
181 static void grabkeys(void);
182 static void incnmaster(const Arg *arg);
183 static void keypress(XEvent *e);
184 static void killclient(const Arg *arg);
185 static void manage(Window w, XWindowAttributes *wa);
186 static void mappingnotify(XEvent *e);
187 static void maprequest(XEvent *e);
188 static void monocle(Monitor *m);
189 static void motionnotify(XEvent *e);
190 static void movemouse(const Arg *arg);
191 static Client *nexttiled(Client *c);
192 static void pop(Client *c);
193 static void propertynotify(XEvent *e);
194 static void quit(const Arg *arg);
195 static Monitor *recttomon(int x, int y, int w, int h);
196 static void resize(Client *c, int x, int y, int w, int h, int interact);
197 static void resizeclient(Client *c, int x, int y, int w, int h);
198 static void resizemouse(const Arg *arg);
199 static void restack(Monitor *m);
200 static void run(void);
201 static void scan(void);
202 static int sendevent(Client *c, Atom proto);
203 static void sendmon(Client *c, Monitor *m);
204 static void setclientstate(Client *c, long state);
205 static void setfocus(Client *c);
206 static void setfullscreen(Client *c, int fullscreen);
207 static void setlayout(const Arg *arg);
208 static void setcfact(const Arg *arg);
209 static void setmfact(const Arg *arg);
210 static void setup(void);
211 static void seturgent(Client *c, int urg);
212 static void showhide(Client *c);
213 static void spawn(const Arg *arg);
214 static void tag(const Arg *arg);
215 static void tagmon(const Arg *arg);
216 static void togglebar(const Arg *arg);
217 static void togglefloating(const Arg *arg);
218 static void toggletag(const Arg *arg);
219 static void toggleview(const Arg *arg);
220 static void unfocus(Client *c, int setfocus);
221 static void unmanage(Client *c, int destroyed);
222 static void unmapnotify(XEvent *e);
223 static void updatebarpos(Monitor *m);
224 static void updatebars(void);
225 static void updateclientlist(void);
226 static int updategeom(void);
227 static void updatenumlockmask(void);
228 static void updatesizehints(Client *c);
229 static void updatestatus(void);
230 static void updatetitle(Client *c);
231 static void updatewindowtype(Client *c);
232 static void updatewmhints(Client *c);
233 static void view(const Arg *arg);
234 static Client *wintoclient(Window w);
235 static Monitor *wintomon(Window w);
236 static int xerror(Display *dpy, XErrorEvent *ee);
237 static int xerrordummy(Display *dpy, XErrorEvent *ee);
238 static int xerrorstart(Display *dpy, XErrorEvent *ee);
239 static void zoom(const Arg *arg);
240
241 /* variables */
242 static const char broken[] = "broken";
243 static char stext[256];
244 static int screen;
245 static int sw, sh; /* X display screen geometry width, height */
246 static int bh; /* bar height */
247 static int lrpad; /* sum of left and right padding for text */
248 static int (*xerrorxlib)(Display *, XErrorEvent *);
249 static unsigned int numlockmask = 0;
250 static void (*handler[LASTEvent]) (XEvent *) = {
251 [ButtonPress] = buttonpress,
252 [ClientMessage] = clientmessage,
253 [ConfigureRequest] = configurerequest,
254 [ConfigureNotify] = configurenotify,
255 [DestroyNotify] = destroynotify,
256 [EnterNotify] = enternotify,
257 [Expose] = expose,
258 [FocusIn] = focusin,
259 [KeyPress] = keypress,
260 [MappingNotify] = mappingnotify,
261 [MapRequest] = maprequest,
262 [MotionNotify] = motionnotify,
263 [PropertyNotify] = propertynotify,
264 [UnmapNotify] = unmapnotify
265 };
266 static Atom wmatom[WMLast], netatom[NetLast];
267 static int running = 1;
268 static Cur *cursor[CurLast];
269 static Clr **scheme;
270 static Display *dpy;
271 static Drw *drw;
272 static Monitor *mons, *selmon;
273 static Window root, wmcheckwin;
274
275 /* configuration, allows nested code to access above variables */
276 #include "config.h"
277
278 /* compile-time check if all tags fit into an unsigned int bit array. */
279 struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; };
280
281 /* function implementations */
282 void
283 applyrules(Client *c)
284 {
285 const char *class, *instance;
286 unsigned int i;
287 const Rule *r;
288 Monitor *m;
289 XClassHint ch = { NULL, NULL };
290
291 /* rule matching */
292 c->isfloating = 0;
293 c->tags = 0;
294 XGetClassHint(dpy, c->win, &ch);
295 class = ch.res_class ? ch.res_class : broken;
296 instance = ch.res_name ? ch.res_name : broken;
297
298 for (i = 0; i < LENGTH(rules); i++) {
299 r = &rules[i];
300 if ((!r->title || strstr(c->name, r->title))
301 && (!r->class || strstr(class, r->class))
302 && (!r->instance || strstr(instance, r->instance)))
303 {
304 c->isfloating = r->isfloating;
305 c->tags |= r->tags;
306 for (m = mons; m && m->num != r->monitor; m = m->next);
307 if (m)
308 c->mon = m;
309 }
310 }
311 if (ch.res_class)
312 XFree(ch.res_class);
313 if (ch.res_name)
314 XFree(ch.res_name);
315 c->tags = c->tags & TAGMASK ? c->tags & TAGMASK : c->mon->tagset[c->mon->seltags];
316 }
317
318 int
319 applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact)
320 {
321 int baseismin;
322 Monitor *m = c->mon;
323
324 /* set minimum possible */
325 *w = MAX(1, *w);
326 *h = MAX(1, *h);
327 if (interact) {
328 if (*x > sw)
329 *x = sw - WIDTH(c);
330 if (*y > sh)
331 *y = sh - HEIGHT(c);
332 if (*x + *w + 2 * c->bw < 0)
333 *x = 0;
334 if (*y + *h + 2 * c->bw < 0)
335 *y = 0;
336 } else {
337 if (*x >= m->wx + m->ww)
338 *x = m->wx + m->ww - WIDTH(c);
339 if (*y >= m->wy + m->wh)
340 *y = m->wy + m->wh - HEIGHT(c);
341 if (*x + *w + 2 * c->bw <= m->wx)
342 *x = m->wx;
343 if (*y + *h + 2 * c->bw <= m->wy)
344 *y = m->wy;
345 }
346 if (*h < bh)
347 *h = bh;
348 if (*w < bh)
349 *w = bh;
350 if (resizehints || c->isfloating || !c->mon->lt[c->mon->sellt]->arrange) {
351 if (!c->hintsvalid)
352 updatesizehints(c);
353 /* see last two sentences in ICCCM 4.1.2.3 */
354 baseismin = c->basew == c->minw && c->baseh == c->minh;
355 if (!baseismin) { /* temporarily remove base dimensions */
356 *w -= c->basew;
357 *h -= c->baseh;
358 }
359 /* adjust for aspect limits */
360 if (c->mina > 0 && c->maxa > 0) {
361 if (c->maxa < (float)*w / *h)
362 *w = *h * c->maxa + 0.5;
363 else if (c->mina < (float)*h / *w)
364 *h = *w * c->mina + 0.5;
365 }
366 if (baseismin) { /* increment calculation requires this */
367 *w -= c->basew;
368 *h -= c->baseh;
369 }
370 /* adjust for increment value */
371 if (c->incw)
372 *w -= *w % c->incw;
373 if (c->inch)
374 *h -= *h % c->inch;
375 /* restore base dimensions */
376 *w = MAX(*w + c->basew, c->minw);
377 *h = MAX(*h + c->baseh, c->minh);
378 if (c->maxw)
379 *w = MIN(*w, c->maxw);
380 if (c->maxh)
381 *h = MIN(*h, c->maxh);
382 }
383 return *x != c->x || *y != c->y || *w != c->w || *h != c->h;
384 }
385
386 void
387 arrange(Monitor *m)
388 {
389 if (m)
390 showhide(m->stack);
391 else for (m = mons; m; m = m->next)
392 showhide(m->stack);
393 if (m) {
394 arrangemon(m);
395 restack(m);
396 } else for (m = mons; m; m = m->next)
397 arrangemon(m);
398 }
399
400 void
401 arrangemon(Monitor *m)
402 {
403 strncpy(m->ltsymbol, m->lt[m->sellt]->symbol, sizeof m->ltsymbol);
404 if (m->lt[m->sellt]->arrange)
405 m->lt[m->sellt]->arrange(m);
406 }
407
408 void
409 attach(Client *c)
410 {
411 c->next = c->mon->clients;
412 c->mon->clients = c;
413 }
414
415 void
416 attachstack(Client *c)
417 {
418 c->snext = c->mon->stack;
419 c->mon->stack = c;
420 }
421
422 void
423 buttonpress(XEvent *e)
424 {
425 unsigned int i, x, click;
426 Arg arg = {0};
427 Client *c;
428 Monitor *m;
429 XButtonPressedEvent *ev = &e->xbutton;
430
431 click = ClkRootWin;
432 /* focus monitor if necessary */
433 if ((m = wintomon(ev->window)) && m != selmon) {
434 unfocus(selmon->sel, 1);
435 selmon = m;
436 focus(NULL);
437 }
438 if (ev->window == selmon->barwin) {
439 i = x = 0;
440 do
441 x += TEXTW(tags[i]);
442 while (ev->x >= x && ++i < LENGTH(tags));
443 if (i < LENGTH(tags)) {
444 click = ClkTagBar;
445 arg.ui = 1 << i;
446 } else if (ev->x < x + TEXTW(selmon->ltsymbol))
447 click = ClkLtSymbol;
448 else if (ev->x > selmon->ww - (int)TEXTW(stext) + lrpad - 2)
449 click = ClkStatusText;
450 else
451 click = ClkWinTitle;
452 } else if ((c = wintoclient(ev->window))) {
453 focus(c);
454 restack(selmon);
455 XAllowEvents(dpy, ReplayPointer, CurrentTime);
456 click = ClkClientWin;
457 }
458 for (i = 0; i < LENGTH(buttons); i++)
459 if (click == buttons[i].click && buttons[i].func && buttons[i].button == ev->button
460 && CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
461 buttons[i].func(click == ClkTagBar && buttons[i].arg.i == 0 ? &arg : &buttons[i].arg);
462 }
463
464 void
465 checkotherwm(void)
466 {
467 xerrorxlib = XSetErrorHandler(xerrorstart);
468 /* this causes an error if some other window manager is running */
469 XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask);
470 XSync(dpy, False);
471 XSetErrorHandler(xerror);
472 XSync(dpy, False);
473 }
474
475 void
476 cleanup(void)
477 {
478 Arg a = {.ui = ~0};
479 Layout foo = { "", NULL };
480 Monitor *m;
481 size_t i;
482
483 view(&a);
484 selmon->lt[selmon->sellt] = &foo;
485 for (m = mons; m; m = m->next)
486 while (m->stack)
487 unmanage(m->stack, 0);
488 XUngrabKey(dpy, AnyKey, AnyModifier, root);
489 while (mons)
490 cleanupmon(mons);
491 for (i = 0; i < CurLast; i++)
492 drw_cur_free(drw, cursor[i]);
493 for (i = 0; i < LENGTH(colors); i++)
494 drw_scm_free(drw, scheme[i], 3);
495 free(scheme);
496 XDestroyWindow(dpy, wmcheckwin);
497 drw_free(drw);
498 XSync(dpy, False);
499 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
500 XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
501 }
502
503 void
504 cleanupmon(Monitor *mon)
505 {
506 Monitor *m;
507
508 if (mon == mons)
509 mons = mons->next;
510 else {
511 for (m = mons; m && m->next != mon; m = m->next);
512 m->next = mon->next;
513 }
514 XUnmapWindow(dpy, mon->barwin);
515 XDestroyWindow(dpy, mon->barwin);
516 free(mon);
517 }
518
519 void
520 clientmessage(XEvent *e)
521 {
522 XClientMessageEvent *cme = &e->xclient;
523 Client *c = wintoclient(cme->window);
524
525 if (!c)
526 return;
527 if (cme->message_type == netatom[NetWMState]) {
528 if (cme->data.l[1] == netatom[NetWMFullscreen]
529 || cme->data.l[2] == netatom[NetWMFullscreen])
530 setfullscreen(c, (cme->data.l[0] == 1 /* _NET_WM_STATE_ADD */
531 || (cme->data.l[0] == 2 /* _NET_WM_STATE_TOGGLE */ && !c->isfullscreen)));
532 } else if (cme->message_type == netatom[NetActiveWindow]) {
533 if (c != selmon->sel && !c->isurgent)
534 seturgent(c, 1);
535 }
536 }
537
538 void
539 configure(Client *c)
540 {
541 XConfigureEvent ce;
542
543 ce.type = ConfigureNotify;
544 ce.display = dpy;
545 ce.event = c->win;
546 ce.window = c->win;
547 ce.x = c->x;
548 ce.y = c->y;
549 ce.width = c->w;
550 ce.height = c->h;
551 ce.border_width = c->bw;
552 ce.above = None;
553 ce.override_redirect = False;
554 XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce);
555 }
556
557 void
558 configurenotify(XEvent *e)
559 {
560 Monitor *m;
561 Client *c;
562 XConfigureEvent *ev = &e->xconfigure;
563 int dirty;
564
565 /* TODO: updategeom handling sucks, needs to be simplified */
566 if (ev->window == root) {
567 dirty = (sw != ev->width || sh != ev->height);
568 sw = ev->width;
569 sh = ev->height;
570 if (updategeom() || dirty) {
571 drw_resize(drw, sw, bh);
572 updatebars();
573 for (m = mons; m; m = m->next) {
574 for (c = m->clients; c; c = c->next)
575 if (c->isfullscreen)
576 resizeclient(c, m->mx, m->my, m->mw, m->mh);
577 XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, m->ww, bh);
578 }
579 focus(NULL);
580 arrange(NULL);
581 }
582 }
583 }
584
585 void
586 configurerequest(XEvent *e)
587 {
588 Client *c;
589 Monitor *m;
590 XConfigureRequestEvent *ev = &e->xconfigurerequest;
591 XWindowChanges wc;
592
593 if ((c = wintoclient(ev->window))) {
594 if (ev->value_mask & CWBorderWidth)
595 c->bw = ev->border_width;
596 else if (c->isfloating || !selmon->lt[selmon->sellt]->arrange) {
597 m = c->mon;
598 if (ev->value_mask & CWX) {
599 c->oldx = c->x;
600 c->x = m->mx + ev->x;
601 }
602 if (ev->value_mask & CWY) {
603 c->oldy = c->y;
604 c->y = m->my + ev->y;
605 }
606 if (ev->value_mask & CWWidth) {
607 c->oldw = c->w;
608 c->w = ev->width;
609 }
610 if (ev->value_mask & CWHeight) {
611 c->oldh = c->h;
612 c->h = ev->height;
613 }
614 if ((c->x + c->w) > m->mx + m->mw && c->isfloating)
615 c->x = m->mx + (m->mw / 2 - WIDTH(c) / 2); /* center in x direction */
616 if ((c->y + c->h) > m->my + m->mh && c->isfloating)
617 c->y = m->my + (m->mh / 2 - HEIGHT(c) / 2); /* center in y direction */
618 if ((ev->value_mask & (CWX|CWY)) && !(ev->value_mask & (CWWidth|CWHeight)))
619 configure(c);
620 if (ISVISIBLE(c))
621 XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
622 } else
623 configure(c);
624 } else {
625 wc.x = ev->x;
626 wc.y = ev->y;
627 wc.width = ev->width;
628 wc.height = ev->height;
629 wc.border_width = ev->border_width;
630 wc.sibling = ev->above;
631 wc.stack_mode = ev->detail;
632 XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
633 }
634 XSync(dpy, False);
635 }
636
637 Monitor *
638 createmon(void)
639 {
640 Monitor *m;
641
642 m = ecalloc(1, sizeof(Monitor));
643 m->tagset[0] = m->tagset[1] = 1;
644 m->mfact = mfact;
645 m->nmaster = nmaster;
646 m->showbar = showbar;
647 m->topbar = topbar;
648 m->gappih = gappih;
649 m->gappiv = gappiv;
650 m->gappoh = gappoh;
651 m->gappov = gappov;
652 m->lt[0] = &layouts[0];
653 m->lt[1] = &layouts[1 % LENGTH(layouts)];
654 strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol);
655 return m;
656 }
657
658 void
659 destroynotify(XEvent *e)
660 {
661 Client *c;
662 XDestroyWindowEvent *ev = &e->xdestroywindow;
663
664 if ((c = wintoclient(ev->window)))
665 unmanage(c, 1);
666 }
667
668 void
669 detach(Client *c)
670 {
671 Client **tc;
672
673 for (tc = &c->mon->clients; *tc && *tc != c; tc = &(*tc)->next);
674 *tc = c->next;
675 }
676
677 void
678 detachstack(Client *c)
679 {
680 Client **tc, *t;
681
682 for (tc = &c->mon->stack; *tc && *tc != c; tc = &(*tc)->snext);
683 *tc = c->snext;
684
685 if (c == c->mon->sel) {
686 for (t = c->mon->stack; t && !ISVISIBLE(t); t = t->snext);
687 c->mon->sel = t;
688 }
689 }
690
691 Monitor *
692 dirtomon(int dir)
693 {
694 Monitor *m = NULL;
695
696 if (dir > 0) {
697 if (!(m = selmon->next))
698 m = mons;
699 } else if (selmon == mons)
700 for (m = mons; m->next; m = m->next);
701 else
702 for (m = mons; m->next != selmon; m = m->next);
703 return m;
704 }
705
706 void
707 drawbar(Monitor *m)
708 {
709 int x, w, tw = 0;
710 int boxs = drw->fonts->h / 9;
711 int boxw = drw->fonts->h / 6 + 2;
712 unsigned int i, occ = 0, urg = 0;
713 Client *c;
714
715 if (!m->showbar)
716 return;
717
718 /* draw status first so it can be overdrawn by tags later */
719 if (m == selmon) { /* status is only drawn on selected monitor */
720 drw_setscheme(drw, scheme[SchemeNorm]);
721 tw = TEXTW(stext) - lrpad + 2; /* 2px right padding */
722 drw_text(drw, m->ww - tw, 0, tw, bh, 0, stext, 0);
723 }
724
725 for (c = m->clients; c; c = c->next) {
726 occ |= c->tags;
727 if (c->isurgent)
728 urg |= c->tags;
729 }
730 x = 0;
731 for (i = 0; i < LENGTH(tags); i++) {
732 w = TEXTW(tags[i]);
733 drw_setscheme(drw, scheme[m->tagset[m->seltags] & 1 << i ? SchemeSel : SchemeNorm]);
734 drw_text(drw, x, 0, w, bh, lrpad / 2, tags[i], urg & 1 << i);
735 if (occ & 1 << i)
736 drw_rect(drw, x + boxs, boxs, boxw, boxw,
737 m == selmon && selmon->sel && selmon->sel->tags & 1 << i,
738 urg & 1 << i);
739 x += w;
740 }
741 w = TEXTW(m->ltsymbol);
742 drw_setscheme(drw, scheme[SchemeNorm]);
743 x = drw_text(drw, x, 0, w, bh, lrpad / 2, m->ltsymbol, 0);
744
745 if ((w = m->ww - tw - x) > bh) {
746 if (m->sel) {
747 drw_setscheme(drw, scheme[m == selmon ? SchemeSel : SchemeNorm]);
748 drw_text(drw, x, 0, w, bh, lrpad / 2, m->sel->name, 0);
749 if (m->sel->isfloating)
750 drw_rect(drw, x + boxs, boxs, boxw, boxw, m->sel->isfixed, 0);
751 } else {
752 drw_setscheme(drw, scheme[SchemeNorm]);
753 drw_rect(drw, x, 0, w, bh, 1, 1);
754 }
755 }
756 drw_map(drw, m->barwin, 0, 0, m->ww, bh);
757 }
758
759 void
760 drawbars(void)
761 {
762 Monitor *m;
763
764 for (m = mons; m; m = m->next)
765 drawbar(m);
766 }
767
768 void
769 enternotify(XEvent *e)
770 {
771 Client *c;
772 Monitor *m;
773 XCrossingEvent *ev = &e->xcrossing;
774
775 if ((ev->mode != NotifyNormal || ev->detail == NotifyInferior) && ev->window != root)
776 return;
777 c = wintoclient(ev->window);
778 m = c ? c->mon : wintomon(ev->window);
779 if (m != selmon) {
780 unfocus(selmon->sel, 1);
781 selmon = m;
782 } else if (!c || c == selmon->sel)
783 return;
784 focus(c);
785 }
786
787 void
788 expose(XEvent *e)
789 {
790 Monitor *m;
791 XExposeEvent *ev = &e->xexpose;
792
793 if (ev->count == 0 && (m = wintomon(ev->window)))
794 drawbar(m);
795 }
796
797 void
798 focus(Client *c)
799 {
800 if (!c || !ISVISIBLE(c))
801 for (c = selmon->stack; c && !ISVISIBLE(c); c = c->snext);
802 if (selmon->sel && selmon->sel != c)
803 unfocus(selmon->sel, 0);
804 if (c) {
805 if (c->mon != selmon)
806 selmon = c->mon;
807 if (c->isurgent)
808 seturgent(c, 0);
809 detachstack(c);
810 attachstack(c);
811 grabbuttons(c, 1);
812 XSetWindowBorder(dpy, c->win, scheme[SchemeSel][ColBorder].pixel);
813 setfocus(c);
814 } else {
815 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
816 XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
817 }
818 selmon->sel = c;
819 drawbars();
820 }
821
822 /* there are some broken focus acquiring clients needing extra handling */
823 void
824 focusin(XEvent *e)
825 {
826 XFocusChangeEvent *ev = &e->xfocus;
827
828 if (selmon->sel && ev->window != selmon->sel->win)
829 setfocus(selmon->sel);
830 }
831
832 void
833 focusmon(const Arg *arg)
834 {
835 Monitor *m;
836
837 if (!mons->next)
838 return;
839 if ((m = dirtomon(arg->i)) == selmon)
840 return;
841 unfocus(selmon->sel, 0);
842 selmon = m;
843 focus(NULL);
844 }
845
846 void
847 focusstack(const Arg *arg)
848 {
849 Client *c = NULL, *i;
850
851 if (!selmon->sel || (selmon->sel->isfullscreen && lockfullscreen))
852 return;
853 if (arg->i > 0) {
854 for (c = selmon->sel->next; c && !ISVISIBLE(c); c = c->next);
855 if (!c)
856 for (c = selmon->clients; c && !ISVISIBLE(c); c = c->next);
857 } else {
858 for (i = selmon->clients; i != selmon->sel; i = i->next)
859 if (ISVISIBLE(i))
860 c = i;
861 if (!c)
862 for (; i; i = i->next)
863 if (ISVISIBLE(i))
864 c = i;
865 }
866 if (c) {
867 focus(c);
868 restack(selmon);
869 }
870 }
871
872 Atom
873 getatomprop(Client *c, Atom prop)
874 {
875 int format;
876 unsigned long nitems, dl;
877 unsigned char *p = NULL;
878 Atom da, atom = None;
879
880 if (XGetWindowProperty(dpy, c->win, prop, 0L, sizeof atom, False, XA_ATOM,
881 &da, &format, &nitems, &dl, &p) == Success && p) {
882 if (nitems > 0 && format == 32)
883 atom = *(long *)p;
884 XFree(p);
885 }
886 return atom;
887 }
888
889 int
890 getrootptr(int *x, int *y)
891 {
892 int di;
893 unsigned int dui;
894 Window dummy;
895
896 return XQueryPointer(dpy, root, &dummy, &dummy, x, y, &di, &di, &dui);
897 }
898
899 long
900 getstate(Window w)
901 {
902 int format;
903 long result = -1;
904 unsigned char *p = NULL;
905 unsigned long n, extra;
906 Atom real;
907
908 if (XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState],
909 &real, &format, &n, &extra, &p) != Success)
910 return -1;
911 if (n != 0 && format == 32)
912 result = *(long *)p;
913 XFree(p);
914 return result;
915 }
916
917 int
918 gettextprop(Window w, Atom atom, char *text, unsigned int size)
919 {
920 char **list = NULL;
921 int n;
922 XTextProperty name;
923
924 if (!text || size == 0)
925 return 0;
926 text[0] = '\0';
927 if (!XGetTextProperty(dpy, w, &name, atom) || !name.nitems)
928 return 0;
929 if (name.encoding == XA_STRING) {
930 strncpy(text, (char *)name.value, size - 1);
931 } else if (XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success && n > 0 && *list) {
932 strncpy(text, *list, size - 1);
933 XFreeStringList(list);
934 }
935 text[size - 1] = '\0';
936 XFree(name.value);
937 return 1;
938 }
939
940 void
941 grabbuttons(Client *c, int focused)
942 {
943 updatenumlockmask();
944 {
945 unsigned int i, j;
946 unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
947 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
948 if (!focused)
949 XGrabButton(dpy, AnyButton, AnyModifier, c->win, False,
950 BUTTONMASK, GrabModeSync, GrabModeSync, None, None);
951 for (i = 0; i < LENGTH(buttons); i++)
952 if (buttons[i].click == ClkClientWin)
953 for (j = 0; j < LENGTH(modifiers); j++)
954 XGrabButton(dpy, buttons[i].button,
955 buttons[i].mask | modifiers[j],
956 c->win, False, BUTTONMASK,
957 GrabModeAsync, GrabModeSync, None, None);
958 }
959 }
960
961 void
962 grabkeys(void)
963 {
964 updatenumlockmask();
965 {
966 unsigned int i, j, k;
967 unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
968 int start, end, skip;
969 KeySym *syms;
970
971 XUngrabKey(dpy, AnyKey, AnyModifier, root);
972 XDisplayKeycodes(dpy, &start, &end);
973 syms = XGetKeyboardMapping(dpy, start, end - start + 1, &skip);
974 if (!syms)
975 return;
976 for (k = start; k <= end; k++)
977 for (i = 0; i < LENGTH(keys); i++)
978 /* skip modifier codes, we do that ourselves */
979 if (keys[i].keysym == syms[(k - start) * skip])
980 for (j = 0; j < LENGTH(modifiers); j++)
981 XGrabKey(dpy, k,
982 keys[i].mod | modifiers[j],
983 root, True,
984 GrabModeAsync, GrabModeAsync);
985 XFree(syms);
986 }
987 }
988
989 void
990 incnmaster(const Arg *arg)
991 {
992 selmon->nmaster = MAX(selmon->nmaster + arg->i, 0);
993 arrange(selmon);
994 }
995
996 #ifdef XINERAMA
997 static int
998 isuniquegeom(XineramaScreenInfo *unique, size_t n, XineramaScreenInfo *info)
999 {
1000 while (n--)
1001 if (unique[n].x_org == info->x_org && unique[n].y_org == info->y_org
1002 && unique[n].width == info->width && unique[n].height == info->height)
1003 return 0;
1004 return 1;
1005 }
1006 #endif /* XINERAMA */
1007
1008 void
1009 keypress(XEvent *e)
1010 {
1011 unsigned int i;
1012 KeySym keysym;
1013 XKeyEvent *ev;
1014
1015 ev = &e->xkey;
1016 keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
1017 for (i = 0; i < LENGTH(keys); i++)
1018 if (keysym == keys[i].keysym
1019 && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
1020 && keys[i].func)
1021 keys[i].func(&(keys[i].arg));
1022 }
1023
1024 void
1025 killclient(const Arg *arg)
1026 {
1027 if (!selmon->sel)
1028 return;
1029 if (!sendevent(selmon->sel, wmatom[WMDelete])) {
1030 XGrabServer(dpy);
1031 XSetErrorHandler(xerrordummy);
1032 XSetCloseDownMode(dpy, DestroyAll);
1033 XKillClient(dpy, selmon->sel->win);
1034 XSync(dpy, False);
1035 XSetErrorHandler(xerror);
1036 XUngrabServer(dpy);
1037 }
1038 }
1039
1040 void
1041 manage(Window w, XWindowAttributes *wa)
1042 {
1043 Client *c, *t = NULL;
1044 Window trans = None;
1045 XWindowChanges wc;
1046
1047 c = ecalloc(1, sizeof(Client));
1048 c->win = w;
1049 /* geometry */
1050 c->x = c->oldx = wa->x;
1051 c->y = c->oldy = wa->y;
1052 c->w = c->oldw = wa->width;
1053 c->h = c->oldh = wa->height;
1054 c->oldbw = wa->border_width;
1055 c->cfact = 1.0;
1056
1057 updatetitle(c);
1058 if (XGetTransientForHint(dpy, w, &trans) && (t = wintoclient(trans))) {
1059 c->mon = t->mon;
1060 c->tags = t->tags;
1061 } else {
1062 c->mon = selmon;
1063 applyrules(c);
1064 }
1065
1066 if (c->x + WIDTH(c) > c->mon->wx + c->mon->ww)
1067 c->x = c->mon->wx + c->mon->ww - WIDTH(c);
1068 if (c->y + HEIGHT(c) > c->mon->wy + c->mon->wh)
1069 c->y = c->mon->wy + c->mon->wh - HEIGHT(c);
1070 c->x = MAX(c->x, c->mon->wx);
1071 c->y = MAX(c->y, c->mon->wy);
1072 c->bw = borderpx;
1073
1074 wc.border_width = c->bw;
1075 XConfigureWindow(dpy, w, CWBorderWidth, &wc);
1076 XSetWindowBorder(dpy, w, scheme[SchemeNorm][ColBorder].pixel);
1077 configure(c); /* propagates border_width, if size doesn't change */
1078 updatewindowtype(c);
1079 updatesizehints(c);
1080 updatewmhints(c);
1081 XSelectInput(dpy, w, EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask);
1082 grabbuttons(c, 0);
1083 if (!c->isfloating)
1084 c->isfloating = c->oldstate = trans != None || c->isfixed;
1085 if (c->isfloating)
1086 XRaiseWindow(dpy, c->win);
1087 attach(c);
1088 attachstack(c);
1089 XChangeProperty(dpy, root, netatom[NetClientList], XA_WINDOW, 32, PropModeAppend,
1090 (unsigned char *) &(c->win), 1);
1091 XMoveResizeWindow(dpy, c->win, c->x + 2 * sw, c->y, c->w, c->h); /* some windows require this */
1092 setclientstate(c, NormalState);
1093 if (c->mon == selmon)
1094 unfocus(selmon->sel, 0);
1095 c->mon->sel = c;
1096 arrange(c->mon);
1097 XMapWindow(dpy, c->win);
1098 focus(NULL);
1099 }
1100
1101 void
1102 mappingnotify(XEvent *e)
1103 {
1104 XMappingEvent *ev = &e->xmapping;
1105
1106 XRefreshKeyboardMapping(ev);
1107 if (ev->request == MappingKeyboard)
1108 grabkeys();
1109 }
1110
1111 void
1112 maprequest(XEvent *e)
1113 {
1114 static XWindowAttributes wa;
1115 XMapRequestEvent *ev = &e->xmaprequest;
1116
1117 if (!XGetWindowAttributes(dpy, ev->window, &wa) || wa.override_redirect)
1118 return;
1119 if (!wintoclient(ev->window))
1120 manage(ev->window, &wa);
1121 }
1122
1123 void
1124 monocle(Monitor *m)
1125 {
1126 unsigned int n = 0;
1127 Client *c;
1128
1129 for (c = m->clients; c; c = c->next)
1130 if (ISVISIBLE(c))
1131 n++;
1132 if (n > 0) /* override layout symbol */
1133 snprintf(m->ltsymbol, sizeof m->ltsymbol, "[%d]", n);
1134 for (c = nexttiled(m->clients); c; c = nexttiled(c->next))
1135 resize(c, m->wx, m->wy, m->ww - 2 * c->bw, m->wh - 2 * c->bw, 0);
1136 }
1137
1138 void
1139 motionnotify(XEvent *e)
1140 {
1141 static Monitor *mon = NULL;
1142 Monitor *m;
1143 XMotionEvent *ev = &e->xmotion;
1144
1145 if (ev->window != root)
1146 return;
1147 if ((m = recttomon(ev->x_root, ev->y_root, 1, 1)) != mon && mon) {
1148 unfocus(selmon->sel, 1);
1149 selmon = m;
1150 focus(NULL);
1151 }
1152 mon = m;
1153 }
1154
1155 void
1156 movemouse(const Arg *arg)
1157 {
1158 int x, y, ocx, ocy, nx, ny;
1159 Client *c;
1160 Monitor *m;
1161 XEvent ev;
1162 Time lasttime = 0;
1163
1164 if (!(c = selmon->sel))
1165 return;
1166 if (c->isfullscreen) /* no support moving fullscreen windows by mouse */
1167 return;
1168 restack(selmon);
1169 ocx = c->x;
1170 ocy = c->y;
1171 if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
1172 None, cursor[CurMove]->cursor, CurrentTime) != GrabSuccess)
1173 return;
1174 if (!getrootptr(&x, &y))
1175 return;
1176 do {
1177 XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
1178 switch(ev.type) {
1179 case ConfigureRequest:
1180 case Expose:
1181 case MapRequest:
1182 handler[ev.type](&ev);
1183 break;
1184 case MotionNotify:
1185 if ((ev.xmotion.time - lasttime) <= (1000 / refreshrate))
1186 continue;
1187 lasttime = ev.xmotion.time;
1188
1189 nx = ocx + (ev.xmotion.x - x);
1190 ny = ocy + (ev.xmotion.y - y);
1191 if (abs(selmon->wx - nx) < snap)
1192 nx = selmon->wx;
1193 else if (abs((selmon->wx + selmon->ww) - (nx + WIDTH(c))) < snap)
1194 nx = selmon->wx + selmon->ww - WIDTH(c);
1195 if (abs(selmon->wy - ny) < snap)
1196 ny = selmon->wy;
1197 else if (abs((selmon->wy + selmon->wh) - (ny + HEIGHT(c))) < snap)
1198 ny = selmon->wy + selmon->wh - HEIGHT(c);
1199 if (!c->isfloating && selmon->lt[selmon->sellt]->arrange
1200 && (abs(nx - c->x) > snap || abs(ny - c->y) > snap))
1201 togglefloating(NULL);
1202 if (!selmon->lt[selmon->sellt]->arrange || c->isfloating)
1203 resize(c, nx, ny, c->w, c->h, 1);
1204 break;
1205 }
1206 } while (ev.type != ButtonRelease);
1207 XUngrabPointer(dpy, CurrentTime);
1208 if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) {
1209 sendmon(c, m);
1210 selmon = m;
1211 focus(NULL);
1212 }
1213 }
1214
1215 Client *
1216 nexttiled(Client *c)
1217 {
1218 for (; c && (c->isfloating || !ISVISIBLE(c)); c = c->next);
1219 return c;
1220 }
1221
1222 void
1223 pop(Client *c)
1224 {
1225 detach(c);
1226 attach(c);
1227 focus(c);
1228 arrange(c->mon);
1229 }
1230
1231 void
1232 propertynotify(XEvent *e)
1233 {
1234 Client *c;
1235 Window trans;
1236 XPropertyEvent *ev = &e->xproperty;
1237
1238 if ((ev->window == root) && (ev->atom == XA_WM_NAME))
1239 updatestatus();
1240 else if (ev->state == PropertyDelete)
1241 return; /* ignore */
1242 else if ((c = wintoclient(ev->window))) {
1243 switch(ev->atom) {
1244 default: break;
1245 case XA_WM_TRANSIENT_FOR:
1246 if (!c->isfloating && (XGetTransientForHint(dpy, c->win, &trans)) &&
1247 (c->isfloating = (wintoclient(trans)) != NULL))
1248 arrange(c->mon);
1249 break;
1250 case XA_WM_NORMAL_HINTS:
1251 c->hintsvalid = 0;
1252 break;
1253 case XA_WM_HINTS:
1254 updatewmhints(c);
1255 drawbars();
1256 break;
1257 }
1258 if (ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
1259 updatetitle(c);
1260 if (c == c->mon->sel)
1261 drawbar(c->mon);
1262 }
1263 if (ev->atom == netatom[NetWMWindowType])
1264 updatewindowtype(c);
1265 }
1266 }
1267
1268 void
1269 quit(const Arg *arg)
1270 {
1271 running = 0;
1272 }
1273
1274 Monitor *
1275 recttomon(int x, int y, int w, int h)
1276 {
1277 Monitor *m, *r = selmon;
1278 int a, area = 0;
1279
1280 for (m = mons; m; m = m->next)
1281 if ((a = INTERSECT(x, y, w, h, m)) > area) {
1282 area = a;
1283 r = m;
1284 }
1285 return r;
1286 }
1287
1288 void
1289 resize(Client *c, int x, int y, int w, int h, int interact)
1290 {
1291 if (applysizehints(c, &x, &y, &w, &h, interact))
1292 resizeclient(c, x, y, w, h);
1293 }
1294
1295 void
1296 resizeclient(Client *c, int x, int y, int w, int h)
1297 {
1298 XWindowChanges wc;
1299
1300 c->oldx = c->x; c->x = wc.x = x;
1301 c->oldy = c->y; c->y = wc.y = y;
1302 c->oldw = c->w; c->w = wc.width = w;
1303 c->oldh = c->h; c->h = wc.height = h;
1304 wc.border_width = c->bw;
1305 XConfigureWindow(dpy, c->win, CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc);
1306 configure(c);
1307 XSync(dpy, False);
1308 }
1309
1310 void
1311 resizemouse(const Arg *arg)
1312 {
1313 int ocx, ocy, nw, nh;
1314 Client *c;
1315 Monitor *m;
1316 XEvent ev;
1317 Time lasttime = 0;
1318
1319 if (!(c = selmon->sel))
1320 return;
1321 if (c->isfullscreen) /* no support resizing fullscreen windows by mouse */
1322 return;
1323 restack(selmon);
1324 ocx = c->x;
1325 ocy = c->y;
1326 if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
1327 None, cursor[CurResize]->cursor, CurrentTime) != GrabSuccess)
1328 return;
1329 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
1330 do {
1331 XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
1332 switch(ev.type) {
1333 case ConfigureRequest:
1334 case Expose:
1335 case MapRequest:
1336 handler[ev.type](&ev);
1337 break;
1338 case MotionNotify:
1339 if ((ev.xmotion.time - lasttime) <= (1000 / refreshrate))
1340 continue;
1341 lasttime = ev.xmotion.time;
1342
1343 nw = MAX(ev.xmotion.x - ocx - 2 * c->bw + 1, 1);
1344 nh = MAX(ev.xmotion.y - ocy - 2 * c->bw + 1, 1);
1345 if (c->mon->wx + nw >= selmon->wx && c->mon->wx + nw <= selmon->wx + selmon->ww
1346 && c->mon->wy + nh >= selmon->wy && c->mon->wy + nh <= selmon->wy + selmon->wh)
1347 {
1348 if (!c->isfloating && selmon->lt[selmon->sellt]->arrange
1349 && (abs(nw - c->w) > snap || abs(nh - c->h) > snap))
1350 togglefloating(NULL);
1351 }
1352 if (!selmon->lt[selmon->sellt]->arrange || c->isfloating)
1353 resize(c, c->x, c->y, nw, nh, 1);
1354 break;
1355 }
1356 } while (ev.type != ButtonRelease);
1357 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
1358 XUngrabPointer(dpy, CurrentTime);
1359 while (XCheckMaskEvent(dpy, EnterWindowMask, &ev));
1360 if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) {
1361 sendmon(c, m);
1362 selmon = m;
1363 focus(NULL);
1364 }
1365 }
1366
1367 void
1368 restack(Monitor *m)
1369 {
1370 Client *c;
1371 XEvent ev;
1372 XWindowChanges wc;
1373
1374 drawbar(m);
1375 if (!m->sel)
1376 return;
1377 if (m->sel->isfloating || !m->lt[m->sellt]->arrange)
1378 XRaiseWindow(dpy, m->sel->win);
1379 if (m->lt[m->sellt]->arrange) {
1380 wc.stack_mode = Below;
1381 wc.sibling = m->barwin;
1382 for (c = m->stack; c; c = c->snext)
1383 if (!c->isfloating && ISVISIBLE(c)) {
1384 XConfigureWindow(dpy, c->win, CWSibling|CWStackMode, &wc);
1385 wc.sibling = c->win;
1386 }
1387 }
1388 XSync(dpy, False);
1389 while (XCheckMaskEvent(dpy, EnterWindowMask, &ev));
1390 }
1391
1392 void
1393 run(void)
1394 {
1395 XEvent ev;
1396 /* main event loop */
1397 XSync(dpy, False);
1398 while (running && !XNextEvent(dpy, &ev))
1399 if (handler[ev.type])
1400 handler[ev.type](&ev); /* call handler */
1401 }
1402
1403 void
1404 scan(void)
1405 {
1406 unsigned int i, num;
1407 Window d1, d2, *wins = NULL;
1408 XWindowAttributes wa;
1409
1410 if (XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
1411 for (i = 0; i < num; i++) {
1412 if (!XGetWindowAttributes(dpy, wins[i], &wa)
1413 || wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
1414 continue;
1415 if (wa.map_state == IsViewable || getstate(wins[i]) == IconicState)
1416 manage(wins[i], &wa);
1417 }
1418 for (i = 0; i < num; i++) { /* now the transients */
1419 if (!XGetWindowAttributes(dpy, wins[i], &wa))
1420 continue;
1421 if (XGetTransientForHint(dpy, wins[i], &d1)
1422 && (wa.map_state == IsViewable || getstate(wins[i]) == IconicState))
1423 manage(wins[i], &wa);
1424 }
1425 if (wins)
1426 XFree(wins);
1427 }
1428 }
1429
1430 void
1431 sendmon(Client *c, Monitor *m)
1432 {
1433 if (c->mon == m)
1434 return;
1435 unfocus(c, 1);
1436 detach(c);
1437 detachstack(c);
1438 c->mon = m;
1439 c->tags = m->tagset[m->seltags]; /* assign tags of target monitor */
1440 attach(c);
1441 attachstack(c);
1442 if (c->isfullscreen)
1443 resizeclient(c, m->mx, m->my, m->mw, m->mh);
1444 focus(NULL);
1445 arrange(NULL);
1446 }
1447
1448 void
1449 setclientstate(Client *c, long state)
1450 {
1451 long data[] = { state, None };
1452
1453 XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,
1454 PropModeReplace, (unsigned char *)data, 2);
1455 }
1456
1457 int
1458 sendevent(Client *c, Atom proto)
1459 {
1460 int n;
1461 Atom *protocols;
1462 int exists = 0;
1463 XEvent ev;
1464
1465 if (XGetWMProtocols(dpy, c->win, &protocols, &n)) {
1466 while (!exists && n--)
1467 exists = protocols[n] == proto;
1468 XFree(protocols);
1469 }
1470 if (exists) {
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);
1478 }
1479 return exists;
1480 }
1481
1482 void
1483 setfocus(Client *c)
1484 {
1485 if (!c->neverfocus)
1486 XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
1487 XChangeProperty(dpy, root, netatom[NetActiveWindow], XA_WINDOW, 32,
1488 PropModeReplace, (unsigned char *)&c->win, 1);
1489 sendevent(c, wmatom[WMTakeFocus]);
1490 }
1491
1492 void
1493 setfullscreen(Client *c, int fullscreen)
1494 {
1495 if (fullscreen && !c->isfullscreen) {
1496 XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
1497 PropModeReplace, (unsigned char*)&netatom[NetWMFullscreen], 1);
1498 c->isfullscreen = 1;
1499 c->oldstate = c->isfloating;
1500 c->oldbw = c->bw;
1501 c->bw = 0;
1502 c->isfloating = 1;
1503 resizeclient(c, c->mon->mx, c->mon->my, c->mon->mw, c->mon->mh);
1504 XRaiseWindow(dpy, c->win);
1505 } else if (!fullscreen && c->isfullscreen){
1506 XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
1507 PropModeReplace, (unsigned char*)0, 0);
1508 c->isfullscreen = 0;
1509 c->isfloating = c->oldstate;
1510 c->bw = c->oldbw;
1511 c->x = c->oldx;
1512 c->y = c->oldy;
1513 c->w = c->oldw;
1514 c->h = c->oldh;
1515 resizeclient(c, c->x, c->y, c->w, c->h);
1516 arrange(c->mon);
1517 }
1518 }
1519
1520 void
1521 setlayout(const Arg *arg)
1522 {
1523 if (!arg || !arg->v || arg->v != selmon->lt[selmon->sellt])
1524 selmon->sellt ^= 1;
1525 if (arg && arg->v)
1526 selmon->lt[selmon->sellt] = (Layout *)arg->v;
1527 strncpy(selmon->ltsymbol, selmon->lt[selmon->sellt]->symbol, sizeof selmon->ltsymbol);
1528 if (selmon->sel)
1529 arrange(selmon);
1530 else
1531 drawbar(selmon);
1532 }
1533
1534 void
1535 setcfact(const Arg *arg) {
1536 float f;
1537 Client *c;
1538
1539 c = selmon->sel;
1540
1541 if(!arg || !c || !selmon->lt[selmon->sellt]->arrange)
1542 return;
1543 f = arg->f + c->cfact;
1544 if(arg->f == 0.0)
1545 f = 1.0;
1546 else if(f < 0.25 || f > 4.0)
1547 return;
1548 c->cfact = f;
1549 arrange(selmon);
1550 }
1551
1552 /* arg > 1.0 will set mfact absolutely */
1553 void
1554 setmfact(const Arg *arg)
1555 {
1556 float f;
1557
1558 if (!arg || !selmon->lt[selmon->sellt]->arrange)
1559 return;
1560 f = arg->f < 1.0 ? arg->f + selmon->mfact : arg->f - 1.0;
1561 if (f < 0.05 || f > 0.95)
1562 return;
1563 selmon->mfact = f;
1564 arrange(selmon);
1565 }
1566
1567 void
1568 setup(void)
1569 {
1570 int i;
1571 XSetWindowAttributes wa;
1572 Atom utf8string;
1573 struct sigaction sa;
1574
1575 /* do not transform children into zombies when they terminate */
1576 sigemptyset(&sa.sa_mask);
1577 sa.sa_flags = SA_NOCLDSTOP | SA_NOCLDWAIT | SA_RESTART;
1578 sa.sa_handler = SIG_IGN;
1579 sigaction(SIGCHLD, &sa, NULL);
1580
1581 /* clean up any zombies (inherited from .xinitrc etc) immediately */
1582 while (waitpid(-1, NULL, WNOHANG) > 0);
1583
1584 /* init screen */
1585 screen = DefaultScreen(dpy);
1586 sw = DisplayWidth(dpy, screen);
1587 sh = DisplayHeight(dpy, screen);
1588 root = RootWindow(dpy, screen);
1589 drw = drw_create(dpy, screen, root, sw, sh);
1590 if (!drw_fontset_create(drw, fonts, LENGTH(fonts)))
1591 die("no fonts could be loaded.");
1592 lrpad = drw->fonts->h;
1593 bh = drw->fonts->h + 2;
1594 updategeom();
1595 /* init atoms */
1596 utf8string = XInternAtom(dpy, "UTF8_STRING", False);
1597 wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
1598 wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
1599 wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);
1600 wmatom[WMTakeFocus] = XInternAtom(dpy, "WM_TAKE_FOCUS", False);
1601 netatom[NetActiveWindow] = XInternAtom(dpy, "_NET_ACTIVE_WINDOW", False);
1602 netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
1603 netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
1604 netatom[NetWMState] = XInternAtom(dpy, "_NET_WM_STATE", False);
1605 netatom[NetWMCheck] = XInternAtom(dpy, "_NET_SUPPORTING_WM_CHECK", False);
1606 netatom[NetWMFullscreen] = XInternAtom(dpy, "_NET_WM_STATE_FULLSCREEN", False);
1607 netatom[NetWMWindowType] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False);
1608 netatom[NetWMWindowTypeDialog] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False);
1609 netatom[NetClientList] = XInternAtom(dpy, "_NET_CLIENT_LIST", False);
1610 /* init cursors */
1611 cursor[CurNormal] = drw_cur_create(drw, XC_left_ptr);
1612 cursor[CurResize] = drw_cur_create(drw, XC_sizing);
1613 cursor[CurMove] = drw_cur_create(drw, XC_fleur);
1614 /* init appearance */
1615 scheme = ecalloc(LENGTH(colors), sizeof(Clr *));
1616 for (i = 0; i < LENGTH(colors); i++)
1617 scheme[i] = drw_scm_create(drw, colors[i], 3);
1618 /* init bars */
1619 updatebars();
1620 updatestatus();
1621 /* supporting window for NetWMCheck */
1622 wmcheckwin = XCreateSimpleWindow(dpy, root, 0, 0, 1, 1, 0, 0, 0);
1623 XChangeProperty(dpy, wmcheckwin, netatom[NetWMCheck], XA_WINDOW, 32,
1624 PropModeReplace, (unsigned char *) &wmcheckwin, 1);
1625 XChangeProperty(dpy, wmcheckwin, netatom[NetWMName], utf8string, 8,
1626 PropModeReplace, (unsigned char *) "dwm", 3);
1627 XChangeProperty(dpy, root, netatom[NetWMCheck], XA_WINDOW, 32,
1628 PropModeReplace, (unsigned char *) &wmcheckwin, 1);
1629 /* EWMH support per view */
1630 XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
1631 PropModeReplace, (unsigned char *) netatom, NetLast);
1632 XDeleteProperty(dpy, root, netatom[NetClientList]);
1633 /* select events */
1634 wa.cursor = cursor[CurNormal]->cursor;
1635 wa.event_mask = SubstructureRedirectMask|SubstructureNotifyMask
1636 |ButtonPressMask|PointerMotionMask|EnterWindowMask
1637 |LeaveWindowMask|StructureNotifyMask|PropertyChangeMask;
1638 XChangeWindowAttributes(dpy, root, CWEventMask|CWCursor, &wa);
1639 XSelectInput(dpy, root, wa.event_mask);
1640 grabkeys();
1641 focus(NULL);
1642 }
1643
1644 void
1645 seturgent(Client *c, int urg)
1646 {
1647 XWMHints *wmh;
1648
1649 c->isurgent = urg;
1650 if (!(wmh = XGetWMHints(dpy, c->win)))
1651 return;
1652 wmh->flags = urg ? (wmh->flags | XUrgencyHint) : (wmh->flags & ~XUrgencyHint);
1653 XSetWMHints(dpy, c->win, wmh);
1654 XFree(wmh);
1655 }
1656
1657 void
1658 showhide(Client *c)
1659 {
1660 if (!c)
1661 return;
1662 if (ISVISIBLE(c)) {
1663 /* show clients top down */
1664 XMoveWindow(dpy, c->win, c->x, c->y);
1665 if ((!c->mon->lt[c->mon->sellt]->arrange || c->isfloating) && !c->isfullscreen)
1666 resize(c, c->x, c->y, c->w, c->h, 0);
1667 showhide(c->snext);
1668 } else {
1669 /* hide clients bottom up */
1670 showhide(c->snext);
1671 XMoveWindow(dpy, c->win, WIDTH(c) * -2, c->y);
1672 }
1673 }
1674
1675 void
1676 spawn(const Arg *arg)
1677 {
1678 struct sigaction sa;
1679
1680 if (arg->v == dmenucmd)
1681 dmenumon[0] = '0' + selmon->num;
1682 if (fork() == 0) {
1683 if (dpy)
1684 close(ConnectionNumber(dpy));
1685 setsid();
1686
1687 sigemptyset(&sa.sa_mask);
1688 sa.sa_flags = 0;
1689 sa.sa_handler = SIG_DFL;
1690 sigaction(SIGCHLD, &sa, NULL);
1691
1692 execvp(((char **)arg->v)[0], (char **)arg->v);
1693 die("dwm: execvp '%s' failed:", ((char **)arg->v)[0]);
1694 }
1695 }
1696
1697 void
1698 tag(const Arg *arg)
1699 {
1700 if (selmon->sel && arg->ui & TAGMASK) {
1701 selmon->sel->tags = arg->ui & TAGMASK;
1702 focus(NULL);
1703 arrange(selmon);
1704 }
1705 }
1706
1707 void
1708 tagmon(const Arg *arg)
1709 {
1710 if (!selmon->sel || !mons->next)
1711 return;
1712 sendmon(selmon->sel, dirtomon(arg->i));
1713 }
1714
1715 void
1716 togglebar(const Arg *arg)
1717 {
1718 selmon->showbar = !selmon->showbar;
1719 updatebarpos(selmon);
1720 XMoveResizeWindow(dpy, selmon->barwin, selmon->wx, selmon->by, selmon->ww, bh);
1721 arrange(selmon);
1722 }
1723
1724 void
1725 togglefloating(const Arg *arg)
1726 {
1727 if (!selmon->sel)
1728 return;
1729 if (selmon->sel->isfullscreen) /* no support for fullscreen windows */
1730 return;
1731 selmon->sel->isfloating = !selmon->sel->isfloating || selmon->sel->isfixed;
1732 if (selmon->sel->isfloating)
1733 resize(selmon->sel, selmon->sel->x, selmon->sel->y,
1734 selmon->sel->w, selmon->sel->h, 0);
1735 arrange(selmon);
1736 }
1737
1738 void
1739 toggletag(const Arg *arg)
1740 {
1741 unsigned int newtags;
1742
1743 if (!selmon->sel)
1744 return;
1745 newtags = selmon->sel->tags ^ (arg->ui & TAGMASK);
1746 if (newtags) {
1747 selmon->sel->tags = newtags;
1748 focus(NULL);
1749 arrange(selmon);
1750 }
1751 }
1752
1753 void
1754 toggleview(const Arg *arg)
1755 {
1756 unsigned int newtagset = selmon->tagset[selmon->seltags] ^ (arg->ui & TAGMASK);
1757
1758 if (newtagset) {
1759 selmon->tagset[selmon->seltags] = newtagset;
1760 focus(NULL);
1761 arrange(selmon);
1762 }
1763 }
1764
1765 void
1766 unfocus(Client *c, int setfocus)
1767 {
1768 if (!c)
1769 return;
1770 grabbuttons(c, 0);
1771 XSetWindowBorder(dpy, c->win, scheme[SchemeNorm][ColBorder].pixel);
1772 if (setfocus) {
1773 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
1774 XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
1775 }
1776 }
1777
1778 void
1779 unmanage(Client *c, int destroyed)
1780 {
1781 Monitor *m = c->mon;
1782 XWindowChanges wc;
1783
1784 detach(c);
1785 detachstack(c);
1786 if (!destroyed) {
1787 wc.border_width = c->oldbw;
1788 XGrabServer(dpy); /* avoid race conditions */
1789 XSetErrorHandler(xerrordummy);
1790 XSelectInput(dpy, c->win, NoEventMask);
1791 XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */
1792 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
1793 setclientstate(c, WithdrawnState);
1794 XSync(dpy, False);
1795 XSetErrorHandler(xerror);
1796 XUngrabServer(dpy);
1797 }
1798 free(c);
1799 focus(NULL);
1800 updateclientlist();
1801 arrange(m);
1802 }
1803
1804 void
1805 unmapnotify(XEvent *e)
1806 {
1807 Client *c;
1808 XUnmapEvent *ev = &e->xunmap;
1809
1810 if ((c = wintoclient(ev->window))) {
1811 if (ev->send_event)
1812 setclientstate(c, WithdrawnState);
1813 else
1814 unmanage(c, 0);
1815 }
1816 }
1817
1818 void
1819 updatebars(void)
1820 {
1821 Monitor *m;
1822 XSetWindowAttributes wa = {
1823 .override_redirect = True,
1824 .background_pixmap = ParentRelative,
1825 .event_mask = ButtonPressMask|ExposureMask
1826 };
1827 XClassHint ch = {"dwm", "dwm"};
1828 for (m = mons; m; m = m->next) {
1829 if (m->barwin)
1830 continue;
1831 m->barwin = XCreateWindow(dpy, root, m->wx, m->by, m->ww, bh, 0, DefaultDepth(dpy, screen),
1832 CopyFromParent, DefaultVisual(dpy, screen),
1833 CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
1834 XDefineCursor(dpy, m->barwin, cursor[CurNormal]->cursor);
1835 XMapRaised(dpy, m->barwin);
1836 XSetClassHint(dpy, m->barwin, &ch);
1837 }
1838 }
1839
1840 void
1841 updatebarpos(Monitor *m)
1842 {
1843 m->wy = m->my;
1844 m->wh = m->mh;
1845 if (m->showbar) {
1846 m->wh -= bh;
1847 m->by = m->topbar ? m->wy : m->wy + m->wh;
1848 m->wy = m->topbar ? m->wy + bh : m->wy;
1849 } else
1850 m->by = -bh;
1851 }
1852
1853 void
1854 updateclientlist(void)
1855 {
1856 Client *c;
1857 Monitor *m;
1858
1859 XDeleteProperty(dpy, root, netatom[NetClientList]);
1860 for (m = mons; m; m = m->next)
1861 for (c = m->clients; c; c = c->next)
1862 XChangeProperty(dpy, root, netatom[NetClientList],
1863 XA_WINDOW, 32, PropModeAppend,
1864 (unsigned char *) &(c->win), 1);
1865 }
1866
1867 int
1868 updategeom(void)
1869 {
1870 int dirty = 0;
1871
1872 #ifdef XINERAMA
1873 if (XineramaIsActive(dpy)) {
1874 int i, j, n, nn;
1875 Client *c;
1876 Monitor *m;
1877 XineramaScreenInfo *info = XineramaQueryScreens(dpy, &nn);
1878 XineramaScreenInfo *unique = NULL;
1879
1880 for (n = 0, m = mons; m; m = m->next, n++);
1881 /* only consider unique geometries as separate screens */
1882 unique = ecalloc(nn, sizeof(XineramaScreenInfo));
1883 for (i = 0, j = 0; i < nn; i++)
1884 if (isuniquegeom(unique, j, &info[i]))
1885 memcpy(&unique[j++], &info[i], sizeof(XineramaScreenInfo));
1886 XFree(info);
1887 nn = j;
1888
1889 /* new monitors if nn > n */
1890 for (i = n; i < nn; i++) {
1891 for (m = mons; m && m->next; m = m->next);
1892 if (m)
1893 m->next = createmon();
1894 else
1895 mons = createmon();
1896 }
1897 for (i = 0, m = mons; i < nn && m; m = m->next, i++)
1898 if (i >= n
1899 || unique[i].x_org != m->mx || unique[i].y_org != m->my
1900 || unique[i].width != m->mw || unique[i].height != m->mh)
1901 {
1902 dirty = 1;
1903 m->num = i;
1904 m->mx = m->wx = unique[i].x_org;
1905 m->my = m->wy = unique[i].y_org;
1906 m->mw = m->ww = unique[i].width;
1907 m->mh = m->wh = unique[i].height;
1908 updatebarpos(m);
1909 }
1910 /* removed monitors if n > nn */
1911 for (i = nn; i < n; i++) {
1912 for (m = mons; m && m->next; m = m->next);
1913 while ((c = m->clients)) {
1914 dirty = 1;
1915 m->clients = c->next;
1916 detachstack(c);
1917 c->mon = mons;
1918 attach(c);
1919 attachstack(c);
1920 }
1921 if (m == selmon)
1922 selmon = mons;
1923 cleanupmon(m);
1924 }
1925 free(unique);
1926 } else
1927 #endif /* XINERAMA */
1928 { /* default monitor setup */
1929 if (!mons)
1930 mons = createmon();
1931 if (mons->mw != sw || mons->mh != sh) {
1932 dirty = 1;
1933 mons->mw = mons->ww = sw;
1934 mons->mh = mons->wh = sh;
1935 updatebarpos(mons);
1936 }
1937 }
1938 if (dirty) {
1939 selmon = mons;
1940 selmon = wintomon(root);
1941 }
1942 return dirty;
1943 }
1944
1945 void
1946 updatenumlockmask(void)
1947 {
1948 unsigned int i, j;
1949 XModifierKeymap *modmap;
1950
1951 numlockmask = 0;
1952 modmap = XGetModifierMapping(dpy);
1953 for (i = 0; i < 8; i++)
1954 for (j = 0; j < modmap->max_keypermod; j++)
1955 if (modmap->modifiermap[i * modmap->max_keypermod + j]
1956 == XKeysymToKeycode(dpy, XK_Num_Lock))
1957 numlockmask = (1 << i);
1958 XFreeModifiermap(modmap);
1959 }
1960
1961 void
1962 updatesizehints(Client *c)
1963 {
1964 long msize;
1965 XSizeHints size;
1966
1967 if (!XGetWMNormalHints(dpy, c->win, &size, &msize))
1968 /* size is uninitialized, ensure that size.flags aren't used */
1969 size.flags = PSize;
1970 if (size.flags & PBaseSize) {
1971 c->basew = size.base_width;
1972 c->baseh = size.base_height;
1973 } else if (size.flags & PMinSize) {
1974 c->basew = size.min_width;
1975 c->baseh = size.min_height;
1976 } else
1977 c->basew = c->baseh = 0;
1978 if (size.flags & PResizeInc) {
1979 c->incw = size.width_inc;
1980 c->inch = size.height_inc;
1981 } else
1982 c->incw = c->inch = 0;
1983 if (size.flags & PMaxSize) {
1984 c->maxw = size.max_width;
1985 c->maxh = size.max_height;
1986 } else
1987 c->maxw = c->maxh = 0;
1988 if (size.flags & PMinSize) {
1989 c->minw = size.min_width;
1990 c->minh = size.min_height;
1991 } else if (size.flags & PBaseSize) {
1992 c->minw = size.base_width;
1993 c->minh = size.base_height;
1994 } else
1995 c->minw = c->minh = 0;
1996 if (size.flags & PAspect) {
1997 c->mina = (float)size.min_aspect.y / size.min_aspect.x;
1998 c->maxa = (float)size.max_aspect.x / size.max_aspect.y;
1999 } else
2000 c->maxa = c->mina = 0.0;
2001 c->isfixed = (c->maxw && c->maxh && c->maxw == c->minw && c->maxh == c->minh);
2002 c->hintsvalid = 1;
2003 }
2004
2005 void
2006 updatestatus(void)
2007 {
2008 if (!gettextprop(root, XA_WM_NAME, stext, sizeof(stext)))
2009 strcpy(stext, "dwm-"VERSION);
2010 drawbar(selmon);
2011 }
2012
2013 void
2014 updatetitle(Client *c)
2015 {
2016 if (!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
2017 gettextprop(c->win, XA_WM_NAME, c->name, sizeof c->name);
2018 if (c->name[0] == '\0') /* hack to mark broken clients */
2019 strcpy(c->name, broken);
2020 }
2021
2022 void
2023 updatewindowtype(Client *c)
2024 {
2025 Atom state = getatomprop(c, netatom[NetWMState]);
2026 Atom wtype = getatomprop(c, netatom[NetWMWindowType]);
2027
2028 if (state == netatom[NetWMFullscreen])
2029 setfullscreen(c, 1);
2030 if (wtype == netatom[NetWMWindowTypeDialog])
2031 c->isfloating = 1;
2032 }
2033
2034 void
2035 updatewmhints(Client *c)
2036 {
2037 XWMHints *wmh;
2038
2039 if ((wmh = XGetWMHints(dpy, c->win))) {
2040 if (c == selmon->sel && wmh->flags & XUrgencyHint) {
2041 wmh->flags &= ~XUrgencyHint;
2042 XSetWMHints(dpy, c->win, wmh);
2043 } else
2044 c->isurgent = (wmh->flags & XUrgencyHint) ? 1 : 0;
2045 if (wmh->flags & InputHint)
2046 c->neverfocus = !wmh->input;
2047 else
2048 c->neverfocus = 0;
2049 XFree(wmh);
2050 }
2051 }
2052
2053 void
2054 view(const Arg *arg)
2055 {
2056 if ((arg->ui & TAGMASK) == selmon->tagset[selmon->seltags])
2057 return;
2058 selmon->seltags ^= 1; /* toggle sel tagset */
2059 if (arg->ui & TAGMASK)
2060 selmon->tagset[selmon->seltags] = arg->ui & TAGMASK;
2061 focus(NULL);
2062 arrange(selmon);
2063 }
2064
2065 Client *
2066 wintoclient(Window w)
2067 {
2068 Client *c;
2069 Monitor *m;
2070
2071 for (m = mons; m; m = m->next)
2072 for (c = m->clients; c; c = c->next)
2073 if (c->win == w)
2074 return c;
2075 return NULL;
2076 }
2077
2078 Monitor *
2079 wintomon(Window w)
2080 {
2081 int x, y;
2082 Client *c;
2083 Monitor *m;
2084
2085 if (w == root && getrootptr(&x, &y))
2086 return recttomon(x, y, 1, 1);
2087 for (m = mons; m; m = m->next)
2088 if (w == m->barwin)
2089 return m;
2090 if ((c = wintoclient(w)))
2091 return c->mon;
2092 return selmon;
2093 }
2094
2095 /* There's no way to check accesses to destroyed windows, thus those cases are
2096 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
2097 * default error handler, which may call exit. */
2098 int
2099 xerror(Display *dpy, XErrorEvent *ee)
2100 {
2101 if (ee->error_code == BadWindow
2102 || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
2103 || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
2104 || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
2105 || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
2106 || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
2107 || (ee->request_code == X_GrabButton && ee->error_code == BadAccess)
2108 || (ee->request_code == X_GrabKey && ee->error_code == BadAccess)
2109 || (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
2110 return 0;
2111 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
2112 ee->request_code, ee->error_code);
2113 return xerrorxlib(dpy, ee); /* may call exit */
2114 }
2115
2116 int
2117 xerrordummy(Display *dpy, XErrorEvent *ee)
2118 {
2119 return 0;
2120 }
2121
2122 /* Startup Error handler to check if another window manager
2123 * is already running. */
2124 int
2125 xerrorstart(Display *dpy, XErrorEvent *ee)
2126 {
2127 die("dwm: another window manager is already running");
2128 return -1;
2129 }
2130
2131 void
2132 zoom(const Arg *arg)
2133 {
2134 Client *c = selmon->sel;
2135
2136 if (!selmon->lt[selmon->sellt]->arrange || !c || c->isfloating)
2137 return;
2138 if (c == nexttiled(selmon->clients) && !(c = nexttiled(c->next)))
2139 return;
2140 pop(c);
2141 }
2142
2143 int
2144 main(int argc, char *argv[])
2145 {
2146 if (argc == 2 && !strcmp("-v", argv[1]))
2147 die("dwm-"VERSION);
2148 else if (argc != 1)
2149 die("usage: dwm [-v]");
2150 if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
2151 fputs("warning: no locale support\n", stderr);
2152 if (!(dpy = XOpenDisplay(NULL)))
2153 die("dwm: cannot open display");
2154 checkotherwm();
2155 setup();
2156 #ifdef __OpenBSD__
2157 if (pledge("stdio rpath proc exec", NULL) == -1)
2158 die("pledge");
2159 #endif /* __OpenBSD__ */
2160 scan();
2161 run();
2162 cleanup();
2163 XCloseDisplay(dpy);
2164 return EXIT_SUCCESS;
2165 }