dwm.c
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 <ctype.h>
24#include <errno.h>
25#include <fcntl.h>
26#include <locale.h>
27#include <signal.h>
28#include <stdarg.h>
29#include <stdio.h>
30#include <stdlib.h>
31#include <string.h>
32#include <unistd.h>
33#include <poll.h>
34#include <sys/select.h>
35#include <sys/types.h>
36#include <sys/wait.h>
37#include <X11/cursorfont.h>
38#include <X11/keysym.h>
39#include <X11/Xatom.h>
40#include <X11/Xlib.h>
41#include <X11/Xproto.h>
42#include <X11/Xutil.h>
43#include <X11/Xresource.h>
44#ifdef XINERAMA
45#include <X11/extensions/Xinerama.h>
46#endif /* XINERAMA */
47#include <X11/Xft/Xft.h>
48
49#include "drw.h"
50#include "util.h"
51
52/* macros */
53#define BUTTONMASK (ButtonPressMask|ButtonReleaseMask)
54#define CLEANMASK(mask) (mask & ~(numlockmask|LockMask) & (ShiftMask|ControlMask|Mod1Mask|Mod2Mask|Mod3Mask|Mod4Mask|Mod5Mask))
55#define INTERSECT(x,y,w,h,m) (MAX(0, MIN((x)+(w),(m)->wx+(m)->ww) - MAX((x),(m)->wx)) \
56 * MAX(0, MIN((y)+(h),(m)->wy+(m)->wh) - MAX((y),(m)->wy)))
57#define ISVISIBLE(C) ((C->tags & C->mon->tagset[C->mon->seltags]) || C->issticky)
58#define LENGTH(X) (sizeof X / sizeof X[0])
59#define MOUSEMASK (BUTTONMASK|PointerMotionMask)
60#define WIDTH(X) ((X)->w + 2 * (X)->bw)
61#define HEIGHT(X) ((X)->h + 2 * (X)->bw)
62#define TAGMASK ((1 << LENGTH(tags)) - 1)
63#define TEXTW(X) (drw_fontset_getwidth(drw, (X)) + lrpad)
64
65/* enums */
66enum { DispUi, DispCmdLine }; /* dispatch types */
67enum { LayoutGrid, LayoutMonocle, LayoutFloating }; /* layouts, first is default */
68enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
69enum { SchemeNorm, SchemeSel, SchemeTagsNorm, SchemeTagsIncl, SchemeTagsSel,
70 SchemeLayout, SchemeTitleNorm, SchemeTitleSel, SchemeWMIcon,
71 SchemeStatusNorm, SchemeStatusNotify }; /* color schemes */
72enum { NetSupported, NetWMName, NetWMState, NetWMCheck,
73 NetWMFullscreen, NetActiveWindow, NetWMWindowType,
74 NetWMWindowTypeDialog, NetClientList, NetClientInfo, NetTagState, NetLast }; /* EWMH atoms */
75enum { WMProtocols, WMDelete, WMState, WMTakeFocus, WMLast }; /* default atoms */
76enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle,
77 ClkClientWin, ClkRootWin, ClkLast, ClkWMIcon }; /* clicks */
78
79typedef union {
80 int i;
81 unsigned int ui;
82 float f;
83 const void *v;
84} Arg;
85
86typedef struct {
87 unsigned int click;
88 unsigned int mask;
89 unsigned int button;
90 void (*func)(const Arg *arg);
91 const Arg arg;
92} Button;
93
94typedef struct Pertag Pertag;
95typedef struct Monitor Monitor;
96typedef struct Client Client;
97struct Client {
98 char name[512];
99 float mina, maxa;
100 int x, y, w, h;
101 int oldx, oldy, oldw, oldh;
102 int basew, baseh, incw, inch, maxw, maxh, minw, minh;
103 int bw, oldbw;
104 unsigned int tags;
105 int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen, issticky;
106 Client *next;
107 Client *snext;
108 Monitor *mon;
109 Window win;
110};
111
112typedef struct {
113 void (*arrange)(Monitor *);
114 int *icon;
115 int vectlength;
116} Layout;
117
118struct Monitor {
119 int nmaster;
120 int num;
121 int by; /* bar geometry */
122 int mx, my, mw, mh; /* screen size */
123 int wx, wy, ww, wh; /* window area */
124 int gap;
125 unsigned int seltags;
126 unsigned int sellt;
127 unsigned int tagset[2];
128 int showbar;
129 int topbar;
130 Client *clients;
131 Client *sel;
132 Client *stack;
133 Monitor *next;
134 Window barwin;
135 const Layout *lt[2];
136 Pertag *pertag;
137};
138
139/* Xresources preferences */
140enum resource_type {
141 STRING = 0,
142 INTEGER = 1,
143 FLOAT = 2
144};
145
146typedef struct {
147 char *name;
148 enum resource_type type;
149 void *dst;
150} ResourcePref;
151
152typedef struct {
153 const char *name;
154 void (*func)(const Arg *arg);
155 const Arg arg;
156} Command;
157
158/* function declarations */
159static int applysizehints(Client *c, int *x, int *y, int *w, int *h, int *bw, int interact);
160static void arrange(Monitor *m);
161static void arrangemon(Monitor *m);
162static void attach(Client *c);
163static void attachabove(Client *c);
164static void attachstack(Client *c);
165static void buttonpress(XEvent *e);
166static void checkotherwm(void);
167static void cleanup(void);
168static void cleanupmon(Monitor *mon);
169static void clientmessage(XEvent *e);
170static void configure(Client *c);
171static void configurenotify(XEvent *e);
172static void configurerequest(XEvent *e);
173static Monitor *createmon(void);
174static void destroynotify(XEvent *e);
175static void detach(Client *c);
176static void detachstack(Client *c);
177static Monitor *dirtomon(int dir);
178static char *strmbtok(char *, const char *);
179static void strsplit(char *, char ***, const char *);
180static void dispatchline(const char*, int, void (*)(const Arg*), const Arg*);
181static void dispatchcmd(void);
182static void drawbar(Monitor *m);
183static void drawbars(void);
184static void drawicon(int scheme_type, int *icon, int size, int offset);
185static void enqueue(Client *c);
186static void enqueuestack(Client *c);
187static Bool evpredicate();
188static void expose(XEvent *e);
189static void focus(Client *c);
190static void focusin(XEvent *e);
191static void focusmon(const Arg *arg);
192static void focusstack(const Arg *arg);
193static Atom getatomprop(Client *c, Atom prop);
194static void getgap(Monitor *m, unsigned int n, unsigned int *g, unsigned int r, unsigned int c);
195static int getrootptr(int *x, int *y);
196static long getstate(Window w);
197static int gettextprop(Window w, Atom atom, char *text, unsigned int size);
198static void grabbuttons(Client *c, int focused);
199static void incgaps(const Arg *arg);
200static void incnmaster(const Arg *arg);
201static void killclient(const Arg *arg);
202static void loadxresources(void);
203static void loadstate(int atom_type, Window win, Client *c);
204static void manage(Window w, XWindowAttributes *wa);
205static void maprequest(XEvent *e);
206static void monocle(Monitor *m);
207static void movemouse(const Arg *arg);
208static Client *nextinstack(Client *c);
209static void pop(Client *);
210static void propertynotify(XEvent *e);
211static void quit(const Arg *arg);
212static Monitor *recttomon(int x, int y, int w, int h);
213static void resize(Client *c, int x, int y, int w, int h, int bw, int interact);
214static void resizeclient(Client *c, int x, int y, int w, int h, int bw);
215static void resizemouse(const Arg *arg);
216static void resourceload(XrmDatabase db, char *name, enum resource_type rtype, void *dst);
217static void restack(Monitor *m);
218static void movestack(const Arg *arg);
219static void rotatestack(const Arg *arg);
220static void run(void);
221static void scan(void);
222static int sendevent(Client *c, Atom proto);
223static void sendmon(Client *c, Monitor *m);
224static void setclientstate(Client *c, long state);
225static void setclienttagprop(Client *c);
226static void setfocus(Client *c);
227static void setfullscreen(Client *c, int fullscreen);
228static void setlayout(const Arg *arg);
229static void setstatus(const Arg *arg);
230static void settagstate(void);
231static void togglelayout(const Arg *arg);
232static void rotatelayout(const Arg *arg);
233static void setup(void);
234static void seturgent(Client *c, int urg);
235static void showhide(Client *c);
236static void sigchld(int unused);
237static void spawn(const Arg *arg);
238static void tag(const Arg *arg);
239static void tagmon(const Arg *arg);
240static void nrowgrid(Monitor *);
241static void togglebar(const Arg *arg);
242static void togglefloating(const Arg *arg);
243static void togglegaps(const Arg *arg);
244static void togglesticky(const Arg *arg);
245static void toggletag(const Arg *arg);
246static void toggleview(const Arg *arg);
247static void unfocus(Client *c, int setfocus);
248static void unmanage(Client *c, int destroyed);
249static void unmapnotify(XEvent *e);
250static void updatebarpos(Monitor *m);
251static void updatebars(void);
252static void updateclientlist(void);
253static int updategeom(void);
254static void updatenumlockmask(void);
255static void updatesizehints(Client *c);
256static void updatetitle(Client *c);
257static void updatewindowtype(Client *c);
258static void updatewmhints(Client *c);
259static void view(const Arg *arg);
260static Client *wintoclient(Window w);
261static Monitor *wintomon(Window w);
262static int xerror(Display *dpy, XErrorEvent *ee);
263static int xerrordummy(Display *dpy, XErrorEvent *ee);
264static int xerrorstart(Display *dpy, XErrorEvent *ee);
265static void zoom(const Arg *arg);
266
267/* variables */
268static const char broken[] = "broken";
269static char stext[256] = "";
270static int screen;
271static int sw, sh; /* X display screen geometry width, height */
272static int bh, blw = 0; /* bar geometry */
273static int lrpad; /* sum of left and right padding for text */
274static int (*xerrorxlib)(Display *, XErrorEvent *);
275static unsigned int numlockmask = 0;
276static void (*handler[LASTEvent]) (XEvent *) = {
277 [ButtonPress] = buttonpress,
278 [ClientMessage] = clientmessage,
279 [ConfigureRequest] = configurerequest,
280 [ConfigureNotify] = configurenotify,
281 [DestroyNotify] = destroynotify,
282 [Expose] = expose,
283 [FocusIn] = focusin,
284 [MapRequest] = maprequest,
285 [PropertyNotify] = propertynotify,
286 [UnmapNotify] = unmapnotify
287};
288static Atom wmatom[WMLast], netatom[NetLast];
289static int running = 1;
290static Cur *cursor[CurLast];
291static Clr **scheme;
292static Display *dpy;
293static Drw *drw;
294static Monitor *mons, *selmon;
295static Window root, wmcheckwin;
296static int fifofd;
297
298/* configuration, allows nested code to access above variables */
299#include "config.h"
300
301unsigned int tagw[LENGTH(tags)];
302
303struct Pertag {
304 unsigned int curtag, prevtag; /* current and previous tag */
305 int nmasters[LENGTH(tags) + 1]; /* number of windows in master area */
306 unsigned int sellts[LENGTH(tags) + 1]; /* selected layouts */
307 const Layout *ltidxs[LENGTH(tags) + 1][2]; /* matrix of tags and layouts indexes */
308 int showbars[LENGTH(tags) + 1]; /* display bar for the current tag */
309 int enablegaps[LENGTH(tags) + 1];
310 int gaps[LENGTH(tags) + 1];
311};
312
313/* compile-time check if all tags fit into an unsigned int bit array. */
314struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; };
315
316/* function implementations */
317int
318applysizehints(Client *c, int *x, int *y, int *w, int *h, int *bw, int interact)
319{
320 int baseismin;
321 Monitor *m = c->mon;
322
323 /* set minimum possible */
324 *w = MAX(1, *w);
325 *h = MAX(1, *h);
326 if (interact) {
327 if (*x > sw)
328 *x = sw - WIDTH(c);
329 if (*y > sh)
330 *y = sh - HEIGHT(c);
331 if (*x + *w + 2 * *bw < 0)
332 *x = 0;
333 if (*y + *h + 2 * *bw < 0)
334 *y = 0;
335 } else {
336 if (*x >= m->wx + m->ww)
337 *x = m->wx + m->ww - WIDTH(c);
338 if (*y >= m->wy + m->wh)
339 *y = m->wy + m->wh - HEIGHT(c);
340 if (*x + *w + 2 * *bw <= m->wx)
341 *x = m->wx;
342 if (*y + *h + 2 * *bw <= m->wy)
343 *y = m->wy;
344 }
345 if (*h < bh)
346 *h = bh;
347 if (*w < bh)
348 *w = bh;
349 if (resizehints || c->isfloating || !c->mon->lt[c->mon->sellt]->arrange) {
350 /* see last two sentences in ICCCM 4.1.2.3 */
351 baseismin = c->basew == c->minw && c->baseh == c->minh;
352 if (!baseismin) { /* temporarily remove base dimensions */
353 *w -= c->basew;
354 *h -= c->baseh;
355 }
356 /* adjust for aspect limits */
357 if (c->mina > 0 && c->maxa > 0) {
358 if (c->maxa < (float)*w / *h)
359 *w = *h * c->maxa + 0.5;
360 else if (c->mina < (float)*h / *w)
361 *h = *w * c->mina + 0.5;
362 }
363 if (baseismin) { /* increment calculation requires this */
364 *w -= c->basew;
365 *h -= c->baseh;
366 }
367 /* adjust for increment value */
368 if (c->incw)
369 *w -= *w % c->incw;
370 if (c->inch)
371 *h -= *h % c->inch;
372 /* restore base dimensions */
373 *w = MAX(*w + c->basew, c->minw);
374 *h = MAX(*h + c->baseh, c->minh);
375 if (c->maxw)
376 *w = MIN(*w, c->maxw);
377 if (c->maxh)
378 *h = MIN(*h, c->maxh);
379 }
380 return *x != c->x || *y != c->y || *w != c->w || *h != c->h || *bw != c->bw;
381}
382
383void
384arrange(Monitor *m)
385{
386 if (m)
387 showhide(m->stack);
388 else for (m = mons; m; m = m->next)
389 showhide(m->stack);
390 if (m) {
391 arrangemon(m);
392 restack(m);
393 } else for (m = mons; m; m = m->next)
394 arrangemon(m);
395}
396
397void
398arrangemon(Monitor *m)
399{
400 Client *c;
401
402 if (m->lt[m->sellt]->arrange)
403 m->lt[m->sellt]->arrange(m);
404 else
405 for (c = selmon->clients; c; c = c->next)
406 if (ISVISIBLE(c) && c->bw == 0)
407 resize(c, c->x, c->y, c->w - 2*borderpx, c->h - 2*borderpx, borderpx, 0);
408}
409
410void
411attach(Client *c)
412{
413 c->next = c->mon->clients;
414 c->mon->clients = c;
415}
416
417void
418attachabove(Client *c)
419{
420 if (c->mon->sel == NULL || c->mon->sel == c->mon->clients || c->mon->sel->isfloating) {
421 attach(c);
422 return;
423 }
424
425 Client *at;
426 for (at = c->mon->clients; at->next != c->mon->sel; at = at->next);
427 c->next = at->next;
428 at->next = c;
429}
430
431void
432attachstack(Client *c)
433{
434 c->snext = c->mon->stack;
435 c->mon->stack = c;
436}
437
438void
439buttonpress(XEvent *e)
440{
441 unsigned int i, x, click, occ = 0;
442 Arg arg = {0};
443 Client *c;
444 Monitor *m;
445 XButtonPressedEvent *ev = &e->xbutton;
446
447 click = ClkRootWin;
448 /* focus monitor if necessary */
449 if ((m = wintomon(ev->window)) && m != selmon
450 && (focusonwheel || (ev->button != Button4 && ev->button != Button5))) {
451 unfocus(selmon->sel, 1);
452 selmon = m;
453 focus(NULL);
454 }
455 if (ev->window == selmon->barwin) {
456 i = x = 0;
457 for (c = m->clients; c; c = c->next)
458 occ |= c->tags == 255 ? 0 : c->tags;
459 do {
460 /* do not reserve space for vacant tags */
461 if (!(occ & 1 << i || m->tagset[m->seltags] & 1 << i))
462 continue;
463 x += tagw[i];
464 } while (ev->x >= x && ++i < LENGTH(tags));
465 if (i < LENGTH(tags)) {
466 click = ClkTagBar;
467 arg.ui = 1 << i;
468 } else if (ev->x < x + blw)
469 click = ClkLtSymbol;
470 else if (ev->x > selmon->ww - i_basewidth)
471 click = ClkWMIcon;
472 else if (ev->x > selmon->ww - (int)TEXTW(stext))
473 click = ClkStatusText;
474 else
475 click = ClkWinTitle;
476 } else if ((c = wintoclient(ev->window))) {
477 if (focusonwheel || (ev->button != Button4 && ev->button != Button5))
478 focus(c);
479 XAllowEvents(dpy, ReplayPointer, CurrentTime);
480 click = ClkClientWin;
481 }
482 for (i = 0; i < LENGTH(buttons); i++)
483 if (click == buttons[i].click && buttons[i].func && buttons[i].button == ev->button
484 && CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
485 buttons[i].func(click == ClkTagBar && buttons[i].arg.i == 0 ? &arg : &buttons[i].arg);
486}
487
488void
489checkotherwm(void)
490{
491 xerrorxlib = XSetErrorHandler(xerrorstart);
492 /* this causes an error if some other window manager is running */
493 XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask);
494 XSync(dpy, False);
495 XSetErrorHandler(xerror);
496 XSync(dpy, False);
497}
498
499void
500cleanup(void)
501{
502 Arg a = {.ui = ~0};
503 Layout foo = { NULL };
504 Monitor *m;
505 size_t i;
506
507 view(&a);
508 selmon->lt[selmon->sellt] = &foo;
509 for (m = mons; m; m = m->next)
510 while (m->stack)
511 unmanage(m->stack, 0);
512 XUngrabKey(dpy, AnyKey, AnyModifier, root);
513 while (mons)
514 cleanupmon(mons);
515 for (i = 0; i < CurLast; i++)
516 drw_cur_free(drw, cursor[i]);
517 for (i = 0; i < LENGTH(colors); i++)
518 free(scheme[i]);
519 XDestroyWindow(dpy, wmcheckwin);
520 drw_free(drw);
521 XSync(dpy, False);
522 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
523 XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
524 close(fifofd);
525}
526
527void
528cleanupmon(Monitor *mon)
529{
530 Monitor *m;
531
532 if (mon == mons)
533 mons = mons->next;
534 else {
535 for (m = mons; m && m->next != mon; m = m->next);
536 m->next = mon->next;
537 }
538 XUnmapWindow(dpy, mon->barwin);
539 XDestroyWindow(dpy, mon->barwin);
540 free(mon);
541}
542
543void
544clientmessage(XEvent *e)
545{
546 XClientMessageEvent *cme = &e->xclient;
547 Client *c = wintoclient(cme->window);
548
549 if (!c)
550 return;
551 if (cme->message_type == netatom[NetWMState]) {
552 if (cme->data.l[1] == netatom[NetWMFullscreen]
553 || cme->data.l[2] == netatom[NetWMFullscreen])
554 setfullscreen(c, (cme->data.l[0] == 1 /* _NET_WM_STATE_ADD */
555 || (cme->data.l[0] == 2 /* _NET_WM_STATE_TOGGLE */ && !c->isfullscreen)));
556 } else if (cme->message_type == netatom[NetActiveWindow]) {
557 if (c != selmon->sel && !c->isurgent)
558 seturgent(c, 1);
559 }
560}
561
562void
563configure(Client *c)
564{
565 XConfigureEvent ce;
566
567 ce.type = ConfigureNotify;
568 ce.display = dpy;
569 ce.event = c->win;
570 ce.window = c->win;
571 ce.x = c->x;
572 ce.y = c->y;
573 ce.width = c->w;
574 ce.height = c->h;
575 ce.border_width = c->bw;
576 ce.above = None;
577 ce.override_redirect = False;
578 XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce);
579}
580
581void
582configurenotify(XEvent *e)
583{
584 Monitor *m;
585 Client *c;
586 XConfigureEvent *ev = &e->xconfigure;
587 int dirty;
588
589 /* TODO: updategeom handling sucks, needs to be simplified */
590 if (ev->window == root) {
591 dirty = (sw != ev->width || sh != ev->height);
592 sw = ev->width;
593 sh = ev->height;
594 if (updategeom() || dirty) {
595 drw_resize(drw, sw, bh);
596 updatebars();
597 for (m = mons; m; m = m->next) {
598 for (c = m->clients; c; c = c->next)
599 if (c->isfullscreen)
600 resizeclient(c, m->mx, m->my, m->mw, m->mh, 0);
601 XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, m->ww, bh);
602 }
603 focus(NULL);
604 arrange(NULL);
605 }
606 }
607}
608
609void
610configurerequest(XEvent *e)
611{
612 Client *c;
613 Monitor *m;
614 XConfigureRequestEvent *ev = &e->xconfigurerequest;
615 XWindowChanges wc;
616
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) {
621 m = c->mon;
622 if (ev->value_mask & CWX) {
623 c->oldx = c->x;
624 c->x = m->mx + ev->x;
625 }
626 if (ev->value_mask & CWY) {
627 c->oldy = c->y;
628 c->y = m->my + ev->y;
629 }
630 if (ev->value_mask & CWWidth) {
631 c->oldw = c->w;
632 c->w = ev->width;
633 }
634 if (ev->value_mask & CWHeight) {
635 c->oldh = c->h;
636 c->h = ev->height;
637 }
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)))
643 configure(c);
644 if (ISVISIBLE(c))
645 XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
646 } else
647 configure(c);
648 } else {
649 wc.x = ev->x;
650 wc.y = ev->y;
651 wc.width = ev->width;
652 wc.height = ev->height;
653 wc.border_width = ev->border_width;
654 wc.sibling = ev->above;
655 wc.stack_mode = ev->detail;
656 XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
657 }
658 XSync(dpy, False);
659}
660
661Monitor *
662createmon(void)
663{
664 Monitor *m;
665 unsigned int i;
666
667 m = ecalloc(1, sizeof(Monitor));
668 m->tagset[0] = m->tagset[1] = 1;
669 m->nmaster = nmaster;
670 m->showbar = showbar;
671 m->topbar = topbar;
672 m->gap = gap;
673 m->lt[0] = &layouts[0];
674 m->lt[1] = &layouts[1 % LENGTH(layouts)];
675 m->pertag = ecalloc(1, sizeof(Pertag));
676 m->pertag->curtag = m->pertag->prevtag = 1;
677 for (i = 0; i <= LENGTH(tags); i++) {
678 m->pertag->nmasters[i] = m->nmaster;
679
680 m->pertag->ltidxs[i][0] = m->lt[0];
681 m->pertag->ltidxs[i][1] = m->lt[1];
682 m->pertag->sellts[i] = m->sellt;
683 m->pertag->enablegaps[i] = 1;
684 m->pertag->gaps[i] = gap;
685
686 m->pertag->showbars[i] = m->showbar;
687 }
688 return m;
689}
690
691void
692destroynotify(XEvent *e)
693{
694 Client *c;
695 XDestroyWindowEvent *ev = &e->xdestroywindow;
696
697 if ((c = wintoclient(ev->window)))
698 unmanage(c, 1);
699}
700
701void
702detach(Client *c)
703{
704 Client **tc;
705
706 for (tc = &c->mon->clients; *tc && *tc != c; tc = &(*tc)->next);
707 *tc = c->next;
708}
709
710void
711detachstack(Client *c)
712{
713 Client **tc, *t;
714
715 for (tc = &c->mon->stack; *tc && *tc != c; tc = &(*tc)->snext);
716 *tc = c->snext;
717
718 if (c == c->mon->sel) {
719 for (t = c->mon->stack; t && !ISVISIBLE(t); t = t->snext);
720 c->mon->sel = t;
721 }
722}
723
724Monitor *
725dirtomon(int dir)
726{
727 Monitor *m = NULL;
728
729 if (dir > 0) {
730 if (!(m = selmon->next))
731 m = mons;
732 } else if (selmon == mons)
733 for (m = mons; m->next; m = m->next);
734 else
735 for (m = mons; m->next != selmon; m = m->next);
736 return m;
737}
738
739char *
740strmbtok(char *str, const char *toks)
741{
742 static char *tok = NULL;
743 char *lead = NULL;
744 Bool block = False;
745
746 if (str != NULL)
747 tok = lead = str;
748 else if (*(lead = tok) == '\0')
749 lead = NULL;
750
751 while (*tok != '\0') {
752 if (block && '\"' == *tok) {
753 block = False;
754 } else if (!block && '\"' == *tok) {
755 block = True;
756 } else if (!block && strchr(toks, *tok) != NULL) {
757 *tok = '\0';
758 tok++;
759 break;
760 }
761 tok++;
762 }
763 return lead;
764}
765
766void
767strsplit(char *str, char ***arr, const char *toks)
768{
769 char *p = strmbtok(str, toks);
770 int len = 0;
771
772 while (p) {
773 if ((*arr = realloc(*arr, sizeof (char*) * ++len)) == NULL)
774 die("realloc: failed\n");
775 (*arr)[len - 1] = p;
776 p = strmbtok(NULL, toks);
777 }
778
779 if ((*arr = realloc(*arr, sizeof (char*) * (len + 1))) == NULL)
780 die("realloc: failed\n");
781 (*arr)[len] = 0;
782}
783
784void
785dispatchline(const char *c, int n, void (*func)(const Arg *), const Arg *arg)
786{
787 char *line = NULL;
788 char **arr = NULL;
789 int len = strlen(c) - n;
790 Arg a;
791
792 if (len < 0)
793 return;
794
795 line = malloc(len + 1);
796
797 strcpy(line, c + n);
798 strsplit(line, &arr, " ");
799
800 switch (arg->i) {
801 case DispUi:
802 if (sscanf(arr[0], "%d", &a.i))
803 a.ui = 1 << a.i;
804 break;
805 case DispCmdLine:
806 a.v = (const char **)arr;
807 break;
808 }
809
810 func(&a);
811
812 free(line);
813 free(arr);
814}
815
816void
817dispatchcmd(void)
818{
819 char buf[BUFSIZ];
820 char *ptr, *line, *next;
821 ssize_t n, m;
822 int i;
823
824 if ((n = read(fifofd, buf, sizeof(buf) - 1)) == -1)
825 return;
826
827 buf[n] = '\0';
828 line = buf;
829
830 /* read each line as a single command */
831 while (line) {
832 next = strchr(line, '\n');
833 if (next)
834 *next = '\0';
835 for (i = 0; i < LENGTH(commands); i++) {
836 m = MAX(strlen(line), strlen(commands[i].name));
837 n = (((ptr = strstr(commands[i].name, "...")))
838 ? ptr - commands[i].name
839 : m
840 );
841 if (strncmp(commands[i].name, line, n) == 0) {
842 if (n != m)
843 dispatchline(line, n, commands[i].func, &commands[i].arg);
844 else
845 commands[i].func(&commands[i].arg);
846 break;
847 }
848 }
849 if (next)
850 *next = '\n';
851 line = next ? next + 1 : NULL;
852 }
853
854 /* make sure fifo is empty */
855 while (errno != EWOULDBLOCK)
856 read(fifofd, buf, sizeof(buf) - 1);
857}
858
859void
860drawbar(Monitor *m)
861{
862 int x, w, tw = 0;
863 int tlpad;
864 unsigned int i, j, occ = 0, urg = 0;
865 char *ts = stext;
866 char *tp = stext;
867 int tx = 0;
868 char ctmp;
869 Client *c;
870 char taglabel[64];
871 char *masterclientontag[LENGTH(tags)];
872
873 /* draw status first so it can be overdrawn by tags later */
874 if (m == selmon) { /* status is only drawn on selected monitor */
875 drw_setscheme(drw, scheme[SchemeStatusNorm]);
876 /* get string width excluding color scheme references */
877 while (1) {
878 if ((unsigned int)*ts > LENGTH(colors)) { ts++; continue ; }
879 ctmp = *ts;
880 *ts = '\0';
881 tw += TEXTW(tp) -lrpad;
882 if (ctmp == '\0') { break; }
883 *ts = ctmp;
884 tp = ++ts;
885 }
886 tx = -i_basewidth;
887 ts = stext;
888 tp = stext;
889 while (1) {
890 if ((unsigned int)*ts > LENGTH(colors)) { ts++; continue ; }
891 ctmp = *ts;
892 *ts = '\0';
893 drw_text(drw, m->ww - tw + tx, 0, tw - tx, bh, 0, tp, 0);
894 tx += TEXTW(tp) -lrpad;
895 if (ctmp == '\0') { break; }
896 drw_setscheme(drw, scheme[(unsigned int)(ctmp-1)]);
897 *ts = ctmp;
898 tp = ++ts;
899 }
900 tw += i_basewidth;
901 }
902
903 /* draw wm icon */
904 drawicon(SchemeWMIcon, i_wmicon, LENGTH(i_wmicon), m->ww - i_basewidth);
905
906 for (i = 0; i < LENGTH(tags); i++)
907 masterclientontag[i] = NULL;
908
909 for (c = m->clients; c; c = c->next) {
910 occ |= c->tags == 255 ? 0 : c->tags;
911 if (c->isurgent)
912 urg |= c->tags;
913 for (i = 0; i < LENGTH(tags); i++)
914 if (!masterclientontag[i] && c->tags & (1 << i)) {
915 XClassHint ch = { NULL, NULL };
916 XGetClassHint(dpy, c->win, &ch);
917 if (!(masterclientontag[i] = ch.res_class))
918 continue;
919 /* to lower */
920 for(j = 0; masterclientontag[i][j]; j++)
921 masterclientontag[i][j] = tolower(masterclientontag[i][j]);
922 }
923 }
924
925 for (i = x = 0; i < LENGTH(tags); i++) {
926 /* do not draw vacant tags */
927 if (!(occ & 1 << i || m->tagset[m->seltags] & 1 << i))
928 continue;
929 if (masterclientontag[i])
930 snprintf(taglabel, 64, ptagf, tags[i], masterclientontag[i]);
931 else
932 snprintf(taglabel, 64, etagf, tags[i]);
933 masterclientontag[i] = taglabel;
934 tagw[i] = w = TEXTW(masterclientontag[i]);
935 drw_setscheme(drw,
936 scheme[m->tagset[m->seltags] & 1 << i ? SchemeTagsSel /* selected tag */
937 : selmon && selmon->sel && selmon->sel->tags & 1 << i ? SchemeTagsIncl /* client in tag */
938 : SchemeTagsNorm]);
939 drw_text(drw, x, 0, w, bh, lrpad / 2, masterclientontag[i], urg & 1 << i);
940 if (m->tagset[m->seltags] & 1 << i)
941 drw_rect(drw, x + ulinepad, bh - ulinestroke - ulinevoffset, w - (ulinepad * 2), ulinestroke, 1, ColBorder);
942 x += w;
943 }
944
945 /* draw layout icon */
946 drawicon(SchemeLayout, m->lt[selmon->sellt]->icon, m->lt[selmon->sellt]->vectlength, x);
947 x += blw = i_basewidth;
948
949 if ((w = m->ww - tw - x) > bh) {
950 if (m->sel) {
951 drw_setscheme(drw, scheme[m == selmon ? SchemeTitleSel : SchemeTitleNorm]);
952 tlpad = (m->ww - ((int)TEXTW(m->sel->name) - lrpad)) / 2 - x;
953 if (TEXTW(m->sel->name) + tlpad > (m->ww - tw - x))
954 drw_text(drw, x, 0, w, bh, lrpad / 2, m->sel->name, 0);
955 else
956 drw_text(drw, x, 0, w, bh, tlpad, m->sel->name, 0);
957 } else {
958 drw_setscheme(drw, scheme[SchemeTitleNorm]);
959 drw_rect(drw, x, 0, w, bh, 1, ColBg);
960 }
961 }
962 drw_map(drw, m->barwin, 0, 0, m->ww, bh);
963}
964
965void
966drawbars(void)
967{
968 Monitor *m;
969
970 for (m = mons; m; m = m->next)
971 drawbar(m);
972}
973
974void
975drawicon(int scheme_type, int *icon, int size, int offset)
976{
977 int i, x, y;
978 if (size == 0 || size % 4 != 0)
979 return;
980
981 for (i = x = y = 0; i < size;
982 x = MAX(x, icon[i + 0] + icon[i + 2]),
983 y = MAX(y, icon[i + 1] + icon[i + 3]), i+=4);
984 x = (i_basewidth - x) / 2 + offset;
985 y = (bh - y) / 2;
986
987 drw_setscheme(drw, scheme[scheme_type]);
988
989 /* draw icon */
990 drw_rect(drw, offset, 0, i_basewidth, bh, 1, ColBg);
991 for (i = 0; i < size; i+=4)
992 drw_rect(drw, x + icon[i], y + icon[i+1], icon[i+2], icon[i+3], 1, ColFg);
993}
994
995void
996enqueue(Client *c)
997{
998 Client *l;
999 for (l = c->mon->clients; l && l->next; l = l->next);
1000 if (l) {
1001 l->next = c;
1002 c->next = NULL;
1003 }
1004}
1005
1006void
1007enqueuestack(Client *c)
1008{
1009 Client *l;
1010 for (l = c->mon->stack; l && l->snext; l = l->snext);
1011 if (l) {
1012 l->snext = c;
1013 c->snext = NULL;
1014 }
1015}
1016
1017Bool
1018evpredicate()
1019{
1020 return True;
1021}
1022
1023void
1024expose(XEvent *e)
1025{
1026 Monitor *m;
1027 XExposeEvent *ev = &e->xexpose;
1028
1029 if (ev->count == 0 && (m = wintomon(ev->window)))
1030 drawbar(m);
1031}
1032
1033void
1034focus(Client *c)
1035{
1036 XWindowChanges wc;
1037
1038 if (!c || !ISVISIBLE(c))
1039 for (c = selmon->stack; c && !ISVISIBLE(c); c = c->snext);
1040 if (selmon->sel && selmon->sel != c)
1041 unfocus(selmon->sel, 0);
1042 if (c) {
1043 if (c->mon != selmon)
1044 selmon = c->mon;
1045 if (c->isurgent)
1046 seturgent(c, 0);
1047 detachstack(c);
1048 attachstack(c);
1049 grabbuttons(c, 1);
1050 if (c->isfloating)
1051 XSetWindowBorder(dpy, c->win, scheme[SchemeSel][ColFloat].pixel);
1052 else {
1053 wc.sibling = selmon->barwin;
1054 wc.stack_mode = Below;
1055 XConfigureWindow(dpy, c->win, CWSibling | CWStackMode, &wc);
1056 XSetWindowBorder(dpy, c->win, scheme[SchemeSel][ColBorder].pixel);
1057 }
1058 setfocus(c);
1059 } else {
1060 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
1061 XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
1062 }
1063 selmon->sel = c;
1064 drawbars();
1065}
1066
1067/* there are some broken focus acquiring clients needing extra handling */
1068void
1069focusin(XEvent *e)
1070{
1071 XFocusChangeEvent *ev = &e->xfocus;
1072
1073 if (selmon->sel && ev->window != selmon->sel->win)
1074 setfocus(selmon->sel);
1075}
1076
1077void
1078focusmon(const Arg *arg)
1079{
1080 Monitor *m;
1081
1082 if (!mons->next)
1083 return;
1084 if ((m = dirtomon(arg->i)) == selmon)
1085 return;
1086 unfocus(selmon->sel, 0);
1087 selmon = m;
1088 focus(NULL);
1089}
1090
1091void
1092focusstack(const Arg *arg)
1093{
1094 Client *c = NULL, *i;
1095
1096 if (!selmon->sel)
1097 return;
1098 if (arg->i > 0) {
1099 for (c = selmon->sel->next; c && !ISVISIBLE(c); c = c->next);
1100 if (!c)
1101 for (c = selmon->clients; c && !ISVISIBLE(c); c = c->next);
1102 } else {
1103 for (i = selmon->clients; i != selmon->sel; i = i->next)
1104 if (ISVISIBLE(i))
1105 c = i;
1106 if (!c)
1107 for (; i; i = i->next)
1108 if (ISVISIBLE(i))
1109 c = i;
1110 }
1111 if (c) {
1112 focus(c);
1113 restack(selmon);
1114 }
1115}
1116
1117Atom
1118getatomprop(Client *c, Atom prop)
1119{
1120 int di;
1121 unsigned long dl;
1122 unsigned char *p = NULL;
1123 Atom da, atom = None;
1124
1125 if (XGetWindowProperty(dpy, c->win, prop, 0L, sizeof atom, False, XA_ATOM,
1126 &da, &di, &dl, &dl, &p) == Success && p) {
1127 atom = *(Atom *)p;
1128 XFree(p);
1129 }
1130 return atom;
1131}
1132
1133int
1134getrootptr(int *x, int *y)
1135{
1136 int di;
1137 unsigned int dui;
1138 Window dummy;
1139
1140 return XQueryPointer(dpy, root, &dummy, &dummy, x, y, &di, &di, &dui);
1141}
1142
1143long
1144getstate(Window w)
1145{
1146 int format;
1147 long result = -1;
1148 unsigned char *p = NULL;
1149 unsigned long n, extra;
1150 Atom real;
1151
1152 if (XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState],
1153 &real, &format, &n, &extra, (unsigned char **)&p) != Success)
1154 return -1;
1155 if (n != 0)
1156 result = *p;
1157 XFree(p);
1158 return result;
1159}
1160
1161int
1162gettextprop(Window w, Atom atom, char *text, unsigned int size)
1163{
1164 char **list = NULL;
1165 int n;
1166 XTextProperty name;
1167
1168 if (!text || size == 0)
1169 return 0;
1170 text[0] = '\0';
1171 if (!XGetTextProperty(dpy, w, &name, atom) || !name.nitems)
1172 return 0;
1173 if (name.encoding == XA_STRING)
1174 strncpy(text, (char *)name.value, size - 1);
1175 else {
1176 if (XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success && n > 0 && *list) {
1177 strncpy(text, *list, size - 1);
1178 XFreeStringList(list);
1179 }
1180 }
1181 text[size - 1] = '\0';
1182 XFree(name.value);
1183 return 1;
1184}
1185
1186void
1187grabbuttons(Client *c, int focused)
1188{
1189 updatenumlockmask();
1190 {
1191 unsigned int i, j;
1192 unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
1193 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
1194 if (!focused)
1195 XGrabButton(dpy, AnyButton, AnyModifier, c->win, False,
1196 BUTTONMASK, GrabModeSync, GrabModeSync, None, None);
1197 for (i = 0; i < LENGTH(buttons); i++)
1198 if (buttons[i].click == ClkClientWin)
1199 for (j = 0; j < LENGTH(modifiers); j++)
1200 XGrabButton(dpy, buttons[i].button,
1201 buttons[i].mask | modifiers[j],
1202 c->win, False, BUTTONMASK,
1203 GrabModeAsync, GrabModeSync, None, None);
1204 }
1205}
1206
1207void
1208incgaps(const Arg *arg)
1209{
1210 selmon->gap = selmon->pertag->gaps[selmon->pertag->curtag] = MAX(selmon->gap + arg->i, 0);
1211 arrange(selmon);
1212}
1213
1214void
1215incnmaster(const Arg *arg)
1216{
1217 selmon->nmaster = selmon->pertag->nmasters[selmon->pertag->curtag] = MAX(selmon->nmaster + arg->i, 1);
1218 arrange(selmon);
1219}
1220
1221#ifdef XINERAMA
1222static int
1223isuniquegeom(XineramaScreenInfo *unique, size_t n, XineramaScreenInfo *info)
1224{
1225 while (n--)
1226 if (unique[n].x_org == info->x_org && unique[n].y_org == info->y_org
1227 && unique[n].width == info->width && unique[n].height == info->height)
1228 return 0;
1229 return 1;
1230}
1231#endif /* XINERAMA */
1232
1233void
1234killclient(const Arg *arg)
1235{
1236 if (!selmon->sel)
1237 return;
1238 if (!sendevent(selmon->sel, wmatom[WMDelete])) {
1239 XGrabServer(dpy);
1240 XSetErrorHandler(xerrordummy);
1241 XSetCloseDownMode(dpy, DestroyAll);
1242 XKillClient(dpy, selmon->sel->win);
1243 XSync(dpy, False);
1244 XSetErrorHandler(xerror);
1245 XUngrabServer(dpy);
1246 }
1247}
1248
1249void
1250loadxresources(void)
1251{
1252 Display *display;
1253 char *resm;
1254 XrmDatabase db;
1255 ResourcePref *p;
1256
1257 display = XOpenDisplay(NULL);
1258 resm = XResourceManagerString(display);
1259 if (!resm)
1260 return;
1261
1262 db = XrmGetStringDatabase(resm);
1263 for (p = resources; p < resources + LENGTH(resources); p++)
1264 resourceload(db, p->name, p->type, p->dst);
1265 XCloseDisplay(display);
1266}
1267
1268void
1269loadstate(int atom_type, Window win, Client *c)
1270{
1271 int format;
1272 unsigned long *data, n, extra, length = (
1273 atom_type == NetClientInfo ? 2L
1274 : atom_type == NetTagState ? 1L
1275 : 0L);
1276 Monitor *m;
1277 Atom atom, req_type = (
1278 atom_type == NetClientInfo ? XA_CARDINAL
1279 : atom_type == NetTagState ? XA_INTEGER
1280 : AnyPropertyType);
1281
1282 if (XGetWindowProperty(dpy, win, netatom[atom_type], 0L, length, False, req_type, &atom, &format, &n, &extra, (unsigned char **)&data) == Success) {
1283 if (atom_type == NetClientInfo && n == 2) {
1284 c->tags = *data;
1285 for (m = mons; m; m = m->next)
1286 if (m->num == *(data+1) && (c->mon = m) == m)
1287 break;
1288 } else if (atom_type == NetTagState && n == 1) {
1289 selmon->tagset[selmon->seltags] = (unsigned int)*data;
1290 }
1291 }
1292 if (n > 0) /* clean up */
1293 XFree(data);
1294}
1295
1296void
1297manage(Window w, XWindowAttributes *wa)
1298{
1299 Client *c, *t = NULL;
1300 Window trans = None;
1301 XWindowChanges wc;
1302
1303 c = ecalloc(1, sizeof(Client));
1304 c->win = w;
1305 /* geometry */
1306 c->x = c->oldx = wa->x;
1307 c->y = c->oldy = wa->y;
1308 c->w = c->oldw = wa->width;
1309 c->h = c->oldh = wa->height;
1310 c->oldbw = wa->border_width;
1311
1312 updatetitle(c);
1313 if (XGetTransientForHint(dpy, w, &trans) && (t = wintoclient(trans))) {
1314 c->mon = t->mon;
1315 c->tags = t->tags;
1316 } else {
1317 c->mon = selmon;
1318 c->isfloating = 0;
1319 c->tags = c->tags & TAGMASK ? c->tags & TAGMASK
1320 : c->mon->tagset[c->mon->seltags]
1321 ? c->mon->tagset[c->mon->seltags]
1322 : 1;
1323 }
1324
1325 if (c->x + WIDTH(c) > c->mon->mx + c->mon->mw)
1326 c->x = c->mon->mx + c->mon->mw - WIDTH(c);
1327 if (c->y + HEIGHT(c) > c->mon->my + c->mon->mh)
1328 c->y = c->mon->my + c->mon->mh - HEIGHT(c);
1329 c->x = MAX(c->x, c->mon->mx);
1330 /* only fix client y-offset, if the client center might cover the bar */
1331 c->y = MAX(c->y, ((c->mon->by == c->mon->my) && (c->x + (c->w / 2) >= c->mon->wx)
1332 && (c->x + (c->w / 2) < c->mon->wx + c->mon->ww)) ? bh : c->mon->my);
1333 c->bw = borderpx;
1334
1335 wc.border_width = c->bw;
1336 XConfigureWindow(dpy, w, CWBorderWidth, &wc);
1337 if (c->isfloating)
1338 XSetWindowBorder(dpy, w, scheme[SchemeNorm][ColFloat].pixel);
1339 else
1340 XSetWindowBorder(dpy, w, scheme[SchemeNorm][ColBorder].pixel);
1341 configure(c); /* propagates border_width, if size doesn't change */
1342 updatewindowtype(c);
1343 updatesizehints(c);
1344 updatewmhints(c);
1345 loadstate(NetClientInfo, c->win, c);
1346 setclienttagprop(c);
1347
1348 XSelectInput(dpy, w, EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask);
1349 grabbuttons(c, 0);
1350 if (!c->isfloating)
1351 c->isfloating = c->oldstate = trans != None || c->isfixed;
1352 if (c->isfloating)
1353 XRaiseWindow(dpy, c->win);
1354 if (c->isfloating)
1355 XSetWindowBorder(dpy, w, scheme[SchemeNorm][ColFloat].pixel);
1356 attachabove(c);
1357 attachstack(c);
1358 XChangeProperty(dpy, root, netatom[NetClientList], XA_WINDOW, 32, PropModeAppend,
1359 (unsigned char *) &(c->win), 1);
1360 XMoveResizeWindow(dpy, c->win, c->x + 2 * sw, c->y, c->w, c->h); /* some windows require this */
1361 setclientstate(c, NormalState);
1362 if (c->mon == selmon)
1363 unfocus(selmon->sel, 0);
1364 c->mon->sel = c;
1365 arrange(c->mon);
1366 XMapWindow(dpy, c->win);
1367 focus(NULL);
1368}
1369
1370void
1371maprequest(XEvent *e)
1372{
1373 static XWindowAttributes wa;
1374 XMapRequestEvent *ev = &e->xmaprequest;
1375
1376 if (!XGetWindowAttributes(dpy, ev->window, &wa))
1377 return;
1378 if (wa.override_redirect)
1379 return;
1380 if (!wintoclient(ev->window))
1381 manage(ev->window, &wa);
1382}
1383
1384void
1385monocle(Monitor *m)
1386{
1387 Client *c;
1388 for (c = nextinstack(m->clients); c; c = nextinstack(c->next))
1389 resize(c, m->wx, m->wy, m->ww, m->wh, 0, 0);
1390}
1391
1392void
1393movemouse(const Arg *arg)
1394{
1395 int x, y, ocx, ocy, nx, ny;
1396 Client *c;
1397 Monitor *m;
1398 XEvent ev;
1399 Time lasttime = 0;
1400
1401 if (!(c = selmon->sel))
1402 return;
1403 if (c->isfullscreen) /* no support moving fullscreen windows by mouse */
1404 return;
1405 restack(selmon);
1406 ocx = c->x;
1407 ocy = c->y;
1408 if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
1409 None, cursor[CurMove]->cursor, CurrentTime) != GrabSuccess)
1410 return;
1411 if (!getrootptr(&x, &y))
1412 return;
1413 do {
1414 XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
1415 switch(ev.type) {
1416 case ConfigureRequest:
1417 case Expose:
1418 case MapRequest:
1419 handler[ev.type](&ev);
1420 break;
1421 case MotionNotify:
1422 if ((ev.xmotion.time - lasttime) <= (1000 / 60))
1423 continue;
1424 lasttime = ev.xmotion.time;
1425
1426 nx = ocx + (ev.xmotion.x - x);
1427 ny = ocy + (ev.xmotion.y - y);
1428 if (abs(selmon->wx - nx) < snap)
1429 nx = selmon->wx;
1430 else if (abs((selmon->wx + selmon->ww) - (nx + WIDTH(c))) < snap)
1431 nx = selmon->wx + selmon->ww - WIDTH(c);
1432 if (abs(selmon->wy - ny) < snap)
1433 ny = selmon->wy;
1434 else if (abs((selmon->wy + selmon->wh) - (ny + HEIGHT(c))) < snap)
1435 ny = selmon->wy + selmon->wh - HEIGHT(c);
1436 if (!c->isfloating && selmon->lt[selmon->sellt]->arrange
1437 && (abs(nx - c->x) > snap || abs(ny - c->y) > snap))
1438 togglefloating(NULL);
1439 if (!selmon->lt[selmon->sellt]->arrange || c->isfloating)
1440 resize(c, nx, ny, c->w, c->h, c->bw, 1);
1441 break;
1442 }
1443 } while (ev.type != ButtonRelease);
1444 XUngrabPointer(dpy, CurrentTime);
1445 if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) {
1446 sendmon(c, m);
1447 selmon = m;
1448 focus(NULL);
1449 }
1450}
1451
1452Client *
1453nextinstack(Client *c)
1454{
1455 for (; c && (c->isfloating || !ISVISIBLE(c)); c = c->next);
1456 return c;
1457}
1458
1459void
1460pop(Client *c)
1461{
1462 detach(c);
1463 attach(c);
1464 focus(c);
1465 arrange(c->mon);
1466}
1467
1468void
1469propertynotify(XEvent *e)
1470{
1471 Client *c;
1472 Window trans;
1473 XPropertyEvent *ev = &e->xproperty;
1474
1475 if (ev->state == PropertyDelete)
1476 return; /* ignore */
1477 else if ((c = wintoclient(ev->window))) {
1478 switch(ev->atom) {
1479 default: break;
1480 case XA_WM_TRANSIENT_FOR:
1481 if (!c->isfloating && (XGetTransientForHint(dpy, c->win, &trans)) &&
1482 (c->isfloating = (wintoclient(trans)) != NULL))
1483 arrange(c->mon);
1484 break;
1485 case XA_WM_NORMAL_HINTS:
1486 updatesizehints(c);
1487 break;
1488 case XA_WM_HINTS:
1489 updatewmhints(c);
1490 drawbars();
1491 break;
1492 }
1493 if (ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
1494 updatetitle(c);
1495 if (c == c->mon->sel)
1496 drawbar(c->mon);
1497 }
1498 if (ev->atom == netatom[NetWMWindowType])
1499 updatewindowtype(c);
1500 }
1501}
1502
1503void
1504quit(const Arg *arg)
1505{
1506 running = 0;
1507}
1508
1509Monitor *
1510recttomon(int x, int y, int w, int h)
1511{
1512 Monitor *m, *r = selmon;
1513 int a, area = 0;
1514
1515 for (m = mons; m; m = m->next)
1516 if ((a = INTERSECT(x, y, w, h, m)) > area) {
1517 area = a;
1518 r = m;
1519 }
1520 return r;
1521}
1522
1523void
1524resize(Client *c, int x, int y, int w, int h, int bw, int interact)
1525{
1526 if (applysizehints(c, &x, &y, &w, &h, &bw, interact))
1527 resizeclient(c, x, y, w, h, bw);
1528}
1529
1530void
1531resizeclient(Client *c, int x, int y, int w, int h, int bw)
1532{
1533 XWindowChanges wc;
1534
1535 c->oldx = c->x; c->x = wc.x = x;
1536 c->oldy = c->y; c->y = wc.y = y;
1537 c->oldw = c->w; c->w = wc.width = w;
1538 c->oldh = c->h; c->h = wc.height = h;
1539 c->oldbw = c->bw; c->bw = wc.border_width = bw;
1540 if (((nextinstack(c->mon->clients) == c && !nextinstack(c->next))
1541 || &monocle == c->mon->lt[c->mon->sellt]->arrange)
1542 && !c->isfullscreen
1543 && !c->isfloating
1544 && !c->mon->pertag->enablegaps[c->mon->pertag->curtag]) {
1545 c->w = wc.width += c->bw * 2;
1546 c->h = wc.height += c->bw * 2;
1547 wc.border_width = 0;
1548 }
1549 XConfigureWindow(dpy, c->win, CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc);
1550 configure(c);
1551 XSync(dpy, False);
1552}
1553
1554void
1555resizemouse(const Arg *arg)
1556{
1557 int ocx, ocy, nw, nh;
1558 Client *c;
1559 Monitor *m;
1560 XEvent ev;
1561 Time lasttime = 0;
1562
1563 if (!(c = selmon->sel))
1564 return;
1565 if (c->isfullscreen) /* no support resizing fullscreen windows by mouse */
1566 return;
1567 restack(selmon);
1568 ocx = c->x;
1569 ocy = c->y;
1570 if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
1571 None, cursor[CurResize]->cursor, CurrentTime) != GrabSuccess)
1572 return;
1573 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
1574 do {
1575 XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
1576 switch(ev.type) {
1577 case ConfigureRequest:
1578 case Expose:
1579 case MapRequest:
1580 handler[ev.type](&ev);
1581 break;
1582 case MotionNotify:
1583 if ((ev.xmotion.time - lasttime) <= (1000 / 60))
1584 continue;
1585 lasttime = ev.xmotion.time;
1586
1587 nw = MAX(ev.xmotion.x - ocx - 2 * c->bw + 1, 1);
1588 nh = MAX(ev.xmotion.y - ocy - 2 * c->bw + 1, 1);
1589 if (c->mon->wx + nw >= selmon->wx && c->mon->wx + nw <= selmon->wx + selmon->ww
1590 && c->mon->wy + nh >= selmon->wy && c->mon->wy + nh <= selmon->wy + selmon->wh)
1591 {
1592 if (!c->isfloating && selmon->lt[selmon->sellt]->arrange
1593 && (abs(nw - c->w) > snap || abs(nh - c->h) > snap))
1594 togglefloating(NULL);
1595 }
1596 if (!selmon->lt[selmon->sellt]->arrange || c->isfloating)
1597 resize(c, c->x, c->y, nw, nh, c->bw, 1);
1598 break;
1599 }
1600 } while (ev.type != ButtonRelease);
1601 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
1602 XUngrabPointer(dpy, CurrentTime);
1603 while (XCheckMaskEvent(dpy, EnterWindowMask, &ev));
1604 if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) {
1605 sendmon(c, m);
1606 selmon = m;
1607 focus(NULL);
1608 }
1609}
1610
1611void
1612restack(Monitor *m)
1613{
1614 Client *c;
1615 XEvent ev;
1616 XWindowChanges wc;
1617
1618 drawbar(m);
1619 if (!m->sel)
1620 return;
1621 if (m->sel->isfloating || !m->lt[m->sellt]->arrange)
1622 XRaiseWindow(dpy, m->sel->win);
1623 if (m->lt[m->sellt]->arrange) {
1624 wc.stack_mode = Below;
1625 wc.sibling = m->barwin;
1626 for (c = m->stack; c; c = c->snext)
1627 if (!c->isfloating && ISVISIBLE(c)) {
1628 XConfigureWindow(dpy, c->win, CWSibling|CWStackMode, &wc);
1629 wc.sibling = c->win;
1630 }
1631 }
1632 XSync(dpy, False);
1633 while (XCheckMaskEvent(dpy, EnterWindowMask, &ev));
1634}
1635
1636void
1637movestack(const Arg *arg)
1638{
1639 Client *c = NULL, *p = NULL, *pc = NULL, *i;
1640
1641 if(arg->i > 0) {
1642 /* find the client after selmon->sel */
1643 for(c = selmon->sel->next; c && (!ISVISIBLE(c) || c->isfloating); c = c->next);
1644 if(!c)
1645 for(c = selmon->clients; c && (!ISVISIBLE(c) || c->isfloating); c = c->next);
1646
1647 }
1648 else {
1649 /* find the client before selmon->sel */
1650 for(i = selmon->clients; i != selmon->sel; i = i->next)
1651 if(ISVISIBLE(i) && !i->isfloating)
1652 c = i;
1653 if(!c)
1654 for(; i; i = i->next)
1655 if(ISVISIBLE(i) && !i->isfloating)
1656 c = i;
1657 }
1658 /* find the client before selmon->sel and c */
1659 for(i = selmon->clients; i && (!p || !pc); i = i->next) {
1660 if(i->next == selmon->sel)
1661 p = i;
1662 if(i->next == c)
1663 pc = i;
1664 }
1665
1666 /* swap c and selmon->sel selmon->clients in the selmon->clients list */
1667 if(c && c != selmon->sel) {
1668 Client *temp = selmon->sel->next==c?selmon->sel:selmon->sel->next;
1669 selmon->sel->next = c->next==selmon->sel?c:c->next;
1670 c->next = temp;
1671
1672 if(p && p != c)
1673 p->next = c;
1674 if(pc && pc != selmon->sel)
1675 pc->next = selmon->sel;
1676
1677 if(selmon->sel == selmon->clients)
1678 selmon->clients = c;
1679 else if(c == selmon->clients)
1680 selmon->clients = selmon->sel;
1681
1682 arrange(selmon);
1683 }
1684}
1685
1686void
1687rotatestack(const Arg *arg)
1688{
1689 Client *c = NULL, *f;
1690
1691 if (!selmon->sel)
1692 return;
1693 f = selmon->sel;
1694 if (arg->i > 0) {
1695 for (c = nextinstack(selmon->clients); c && nextinstack(c->next); c = nextinstack(c->next));
1696 if (c){
1697 detach(c);
1698 attach(c);
1699 detachstack(c);
1700 attachstack(c);
1701 }
1702 } else {
1703 if ((c = nextinstack(selmon->clients))){
1704 detach(c);
1705 enqueue(c);
1706 detachstack(c);
1707 enqueuestack(c);
1708 }
1709 }
1710 if (c){
1711 arrange(selmon);
1712 //unfocus(f, 1);
1713 focus(f);
1714 restack(selmon);
1715 }
1716}
1717
1718void
1719run(void)
1720{
1721 XEvent ev;
1722 struct pollfd fds[2] = {
1723 { .events = POLLIN },
1724 { .fd = fifofd, .events = POLLIN }
1725 };
1726 /* main event loop */
1727 XSync(dpy, False);
1728 fds[0].fd = ConnectionNumber(dpy);
1729 while (running) {
1730 (void)poll(fds, 1[&fds] - fds, -1);
1731 if (fds[1].revents & POLLIN)
1732 dispatchcmd();
1733 if (fds[0].revents & POLLIN)
1734 while (XCheckIfEvent(dpy, &ev, evpredicate, NULL))
1735 if (handler[ev.type])
1736 handler[ev.type](&ev); /* call handler */
1737 }
1738}
1739
1740void
1741scan(void)
1742{
1743 unsigned int i, num;
1744 Window d1, d2, *wins = NULL;
1745 XWindowAttributes wa;
1746
1747 if (XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
1748 for (i = 0; i < num; i++) {
1749 if (!XGetWindowAttributes(dpy, wins[i], &wa)
1750 || wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
1751 continue;
1752 if (wa.map_state == IsViewable || getstate(wins[i]) == IconicState)
1753 manage(wins[i], &wa);
1754 }
1755 for (i = 0; i < num; i++) { /* now the transients */
1756 if (!XGetWindowAttributes(dpy, wins[i], &wa))
1757 continue;
1758 if (XGetTransientForHint(dpy, wins[i], &d1)
1759 && (wa.map_state == IsViewable || getstate(wins[i]) == IconicState))
1760 manage(wins[i], &wa);
1761 }
1762 if (wins)
1763 XFree(wins);
1764 }
1765}
1766
1767void
1768sendmon(Client *c, Monitor *m)
1769{
1770 if (c->mon == m)
1771 return;
1772 unfocus(c, 1);
1773 detach(c);
1774 detachstack(c);
1775 c->mon = m;
1776 c->tags = (m->tagset[m->seltags] ? m->tagset[m->seltags] : 1);
1777 attachabove(c);
1778 attachstack(c);
1779 setclienttagprop(c);
1780 focus(NULL);
1781 arrange(NULL);
1782}
1783
1784void
1785setclientstate(Client *c, long state)
1786{
1787 long data[] = { state, None };
1788
1789 XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,
1790 PropModeReplace, (unsigned char *)data, 2);
1791}
1792
1793void
1794setclienttagprop(Client *c)
1795{
1796 long data[] = { (long) c->tags, (long) c->mon->num };
1797 XChangeProperty(dpy, c->win, netatom[NetClientInfo], XA_CARDINAL, 32,
1798 PropModeReplace, (unsigned char *) data, 2);
1799}
1800
1801int
1802sendevent(Client *c, Atom proto)
1803{
1804 int n;
1805 Atom *protocols;
1806 int exists = 0;
1807 XEvent ev;
1808
1809 if (XGetWMProtocols(dpy, c->win, &protocols, &n)) {
1810 while (!exists && n--)
1811 exists = protocols[n] == proto;
1812 XFree(protocols);
1813 }
1814 if (exists) {
1815 ev.type = ClientMessage;
1816 ev.xclient.window = c->win;
1817 ev.xclient.message_type = wmatom[WMProtocols];
1818 ev.xclient.format = 32;
1819 ev.xclient.data.l[0] = proto;
1820 ev.xclient.data.l[1] = CurrentTime;
1821 XSendEvent(dpy, c->win, False, NoEventMask, &ev);
1822 }
1823 return exists;
1824}
1825
1826void
1827setfocus(Client *c)
1828{
1829 if (!c->neverfocus) {
1830 XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
1831 XChangeProperty(dpy, root, netatom[NetActiveWindow],
1832 XA_WINDOW, 32, PropModeReplace,
1833 (unsigned char *) &(c->win), 1);
1834 }
1835 sendevent(c, wmatom[WMTakeFocus]);
1836}
1837
1838void
1839setfullscreen(Client *c, int fullscreen)
1840{
1841 if (fullscreen && !c->isfullscreen) {
1842 XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
1843 PropModeReplace, (unsigned char*)&netatom[NetWMFullscreen], 1);
1844 c->isfullscreen = 1;
1845 c->oldstate = c->isfloating;
1846 c->isfloating = 1;
1847 resizeclient(c, c->mon->mx, c->mon->my, c->mon->mw, c->mon->mh, 0);
1848 XRaiseWindow(dpy, c->win);
1849 } else if (!fullscreen && c->isfullscreen){
1850 XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
1851 PropModeReplace, (unsigned char*)0, 0);
1852 c->isfullscreen = 0;
1853 c->isfloating = c->oldstate;
1854 c->x = c->oldx;
1855 c->y = c->oldy;
1856 c->w = c->oldw;
1857 c->h = c->oldh;
1858 c->bw = c->oldbw;
1859 resizeclient(c, c->x, c->y, c->w, c->h, c->bw);
1860 arrange(c->mon);
1861 }
1862}
1863
1864void
1865setlayout(const Arg *arg)
1866{
1867 if (!arg || !arg->v || arg->v != selmon->lt[selmon->sellt])
1868 selmon->sellt = selmon->pertag->sellts[selmon->pertag->curtag] ^= 1;
1869 if (arg && arg->v)
1870 selmon->lt[selmon->sellt] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt] = (Layout *)arg->v;
1871 if (selmon->sel)
1872 arrange(selmon);
1873 else
1874 drawbar(selmon);
1875}
1876
1877void
1878settagstate(void)
1879{
1880 if (running) {
1881 long data[] = { (long)selmon->tagset[selmon->seltags] };
1882 XChangeProperty(dpy, root, netatom[NetTagState], XA_INTEGER, 32, PropModeReplace, (unsigned char *) data, 1);
1883 }
1884}
1885
1886void
1887togglelayout(const Arg *arg)
1888{
1889 if (selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt] != (Layout *)arg->v)
1890 setlayout(arg);
1891 else
1892 setlayout(0);
1893}
1894
1895void
1896rotatelayout(const Arg *arg)
1897{
1898 int i,
1899 idx = -1,
1900 max = LENGTH(layouts);
1901
1902 if (!arg || !arg->i || arg->i == 0)
1903 return;
1904
1905 for (i = 0; i < max && idx == -1; i++) {
1906 if (selmon->lt[selmon->sellt] == &layouts[i])
1907 idx = i;
1908 }
1909
1910 if (idx == -1)
1911 return;
1912
1913 if (arg->i < 0 && idx-- == 0)
1914 idx = max - 1;
1915
1916 if (arg->i > 0 && idx++ == max - 1)
1917 idx = 0;
1918
1919 selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt] = &layouts[idx];
1920 selmon->lt[selmon->sellt] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt];
1921 if (selmon->sel)
1922 arrange(selmon);
1923 else
1924 drawbar(selmon);
1925}
1926
1927void
1928setup(void)
1929{
1930 int i;
1931 XSetWindowAttributes wa;
1932 Atom utf8string;
1933
1934 /* clean up any zombies immediately */
1935 sigchld(0);
1936
1937 /* init screen */
1938 screen = DefaultScreen(dpy);
1939 sw = DisplayWidth(dpy, screen);
1940 sh = DisplayHeight(dpy, screen);
1941 root = RootWindow(dpy, screen);
1942 drw = drw_create(dpy, screen, root, sw, sh);
1943 if (!drw_fontset_create(drw, fonts, LENGTH(fonts)))
1944 die("no fonts could be loaded.");
1945 lrpad = drw->fonts->h + 4;
1946 bh = drw->fonts->h + 2 + 4;
1947 updategeom();
1948 /* init atoms */
1949 utf8string = XInternAtom(dpy, "UTF8_STRING", False);
1950 wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
1951 wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
1952 wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);
1953 wmatom[WMTakeFocus] = XInternAtom(dpy, "WM_TAKE_FOCUS", False);
1954 netatom[NetActiveWindow] = XInternAtom(dpy, "_NET_ACTIVE_WINDOW", False);
1955 netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
1956 netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
1957 netatom[NetWMState] = XInternAtom(dpy, "_NET_WM_STATE", False);
1958 netatom[NetWMCheck] = XInternAtom(dpy, "_NET_SUPPORTING_WM_CHECK", False);
1959 netatom[NetWMFullscreen] = XInternAtom(dpy, "_NET_WM_STATE_FULLSCREEN", False);
1960 netatom[NetWMWindowType] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False);
1961 netatom[NetWMWindowTypeDialog] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False);
1962 netatom[NetClientList] = XInternAtom(dpy, "_NET_CLIENT_LIST", False);
1963 netatom[NetClientInfo] = XInternAtom(dpy, "_NET_CLIENT_INFO", False);
1964 netatom[NetTagState] = XInternAtom(dpy, "_NET_TAG_STATE", False);
1965 /* init cursors */
1966 cursor[CurNormal] = drw_cur_create(drw, XC_left_ptr);
1967 cursor[CurResize] = drw_cur_create(drw, XC_sizing);
1968 cursor[CurMove] = drw_cur_create(drw, XC_fleur);
1969 /* init appearance */
1970 scheme = ecalloc(LENGTH(colors), sizeof(Clr *));
1971 for (i = 0; i < LENGTH(colors); i++)
1972 scheme[i] = drw_scm_create(drw, colors[i], 4);
1973 /* init bars */
1974 updatebars();
1975 /* supporting window for NetWMCheck */
1976 wmcheckwin = XCreateSimpleWindow(dpy, root, 0, 0, 1, 1, 0, 0, 0);
1977 XChangeProperty(dpy, wmcheckwin, netatom[NetWMCheck], XA_WINDOW, 32,
1978 PropModeReplace, (unsigned char *) &wmcheckwin, 1);
1979 XChangeProperty(dpy, wmcheckwin, netatom[NetWMName], utf8string, 8,
1980 PropModeReplace, (unsigned char *) "dwm", 3);
1981 XChangeProperty(dpy, root, netatom[NetWMCheck], XA_WINDOW, 32,
1982 PropModeReplace, (unsigned char *) &wmcheckwin, 1);
1983 /* EWMH support per view */
1984 XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
1985 PropModeReplace, (unsigned char *) netatom, NetLast);
1986 XDeleteProperty(dpy, root, netatom[NetClientList]);
1987 XDeleteProperty(dpy, root, netatom[NetClientInfo]);
1988 /* select events */
1989 wa.cursor = cursor[CurNormal]->cursor;
1990 wa.event_mask = SubstructureRedirectMask|SubstructureNotifyMask
1991 |ButtonPressMask|PointerMotionMask|EnterWindowMask
1992 |LeaveWindowMask|StructureNotifyMask|PropertyChangeMask;
1993 XChangeWindowAttributes(dpy, root, CWEventMask|CWCursor, &wa);
1994 XSelectInput(dpy, root, wa.event_mask);
1995 focus(NULL);
1996
1997 /* load tag state */
1998 loadstate(NetTagState, root, NULL);
1999
2000 /* fifo */
2001 mkfifo(dwmfifo, 0600);
2002 fifofd = open(dwmfifo, O_RDWR | O_CLOEXEC | O_NONBLOCK);
2003 if (fifofd < 0)
2004 die("Failed to open() DWM fifo %s:", dwmfifo);
2005}
2006
2007void
2008seturgent(Client *c, int urg)
2009{
2010 XWMHints *wmh;
2011
2012 c->isurgent = urg;
2013 if (!(wmh = XGetWMHints(dpy, c->win)))
2014 return;
2015 wmh->flags = urg ? (wmh->flags | XUrgencyHint) : (wmh->flags & ~XUrgencyHint);
2016 XSetWMHints(dpy, c->win, wmh);
2017 XFree(wmh);
2018}
2019
2020void
2021showhide(Client *c)
2022{
2023 if (!c)
2024 return;
2025 if (ISVISIBLE(c)) {
2026 /* show clients top down */
2027 XMoveWindow(dpy, c->win, c->x, c->y);
2028 if ((!c->mon->lt[c->mon->sellt]->arrange || c->isfloating) && !c->isfullscreen)
2029 resize(c, c->x, c->y, c->w, c->h, c->bw, 0);
2030 showhide(c->snext);
2031 } else {
2032 /* hide clients bottom up */
2033 showhide(c->snext);
2034 XMoveWindow(dpy, c->win, WIDTH(c) * -2, c->y);
2035 }
2036}
2037
2038void
2039sigchld(int unused)
2040{
2041 if (signal(SIGCHLD, sigchld) == SIG_ERR)
2042 die("can't install SIGCHLD handler:");
2043 while (0 < waitpid(-1, NULL, WNOHANG));
2044}
2045
2046void
2047spawn(const Arg *arg)
2048{
2049 if (fork() == 0) {
2050 if (dpy)
2051 close(ConnectionNumber(dpy));
2052 setsid();
2053 execvp(((char **)arg->v)[0], (char **)arg->v);
2054 fprintf(stderr, "dwm: execvp %s", ((char **)arg->v)[0]);
2055 perror(" failed");
2056 exit(EXIT_SUCCESS);
2057 }
2058}
2059
2060void
2061setstatus(const Arg *arg)
2062{
2063 char *buff = NULL;
2064 int len = 0;
2065 int i, c = 0;
2066
2067 for (i = 0; ((char **)arg->v)[i]; i++, c++)
2068 len += 1 + strlen(((char **)arg->v)[i]);
2069
2070 if (len == 0)
2071 return;
2072
2073 buff = calloc(len + 1, sizeof(char));
2074
2075 for (i = 0; ((char **)arg->v)[i]; i++) {
2076 strcat(buff, ((char **)arg->v)[i]);
2077 strcat(buff, " "); /* also add space to end for padding */
2078 }
2079
2080 strcpy(stext, buff);
2081 drawbar(selmon);
2082
2083 free(buff);
2084}
2085
2086void
2087tag(const Arg *arg)
2088{
2089 if (selmon->sel && arg->ui & TAGMASK) {
2090 selmon->sel->tags = arg->ui & TAGMASK;
2091 setclienttagprop(selmon->sel);
2092 focus(NULL);
2093 arrange(selmon);
2094 if (viewontag)
2095 view(arg);
2096 }
2097}
2098
2099void
2100tagmon(const Arg *arg)
2101{
2102 if (!selmon->sel || !mons->next)
2103 return;
2104 sendmon(selmon->sel, dirtomon(arg->i));
2105}
2106
2107void
2108getgap(Monitor *m, unsigned int n, unsigned int *g, unsigned int r, unsigned int c)
2109{
2110 /* check if gaps are to large */
2111 if (m->gap > m->wh / (r + 1))
2112 m->gap = m->wh / (r + 1);
2113 if (m->gap > m->ww / (c + 1))
2114 m->gap = m->ww / (c + 1);
2115
2116 /* set gap if used */
2117 *g = (m->pertag->enablegaps[m->pertag->curtag] && n > 0) ? m->gap : 0;
2118}
2119
2120void
2121nrowgrid(Monitor *m)
2122{
2123 unsigned int n, ri = 0, ci = 0; /* counters */
2124 unsigned int cx, cy, cw, ch, cg; /* client geometry */
2125 unsigned int uw = 0, uh = 0, uc = 0; /* utilization trackers */
2126 unsigned int bw = borderpx;
2127 unsigned int cols, rows;
2128 Bool gaps;
2129 Client *c;
2130
2131 for (n = 0, c = nextinstack(m->clients); c; c = nextinstack(c->next), n++);
2132 if (n == 0)
2133 return;
2134
2135 /* calculate rows and cols, never allow empty rows */
2136 /* handle bounds for nmaster */
2137 rows = m->nmaster = m->pertag->nmasters[m->pertag->curtag] = MAX(MIN(m->nmaster, n), 1);
2138 if (n < rows)
2139 rows = n;
2140 cols = n / rows;
2141
2142 getgap(m, n, &cg, rows, cols);
2143 gaps = cg && m->pertag->enablegaps[m->pertag->curtag];
2144
2145 /* hide border when single client without gaps */
2146 if (n == 1 && !gaps)
2147 bw = 0;
2148
2149 /* define first row */
2150 uc = cols;
2151 cy = m->wy + cg + (gaps ? 0 : bw);
2152 ch = (m->wh - 2*cg - (cg * (rows - 1))) / rows;
2153 uw = gaps ? 0 : bw;
2154 uh = ch + cg + (gaps ? 0 : bw);
2155
2156 for (c = nextinstack(m->clients); c; c = nextinstack(c->next), ci++) {
2157 if (ci == cols) {
2158 ci = 0;
2159 ri++;
2160
2161 /* next row */
2162 cols = (n - uc) / (rows - ri);
2163 uc += cols;
2164 cy = m->wy + uh + cg;
2165 ch = ((m->wh - 2*cg) - uh - (cg * (rows - ri - 1))) / (rows - ri);
2166 uw = gaps ? 0 : bw;
2167 uh += ch + cg;
2168 }
2169
2170 cx = m->wx + uw + cg;
2171 cw = ((m->ww - 2*cg) - uw - (cg * (cols - ci - 1))) / (cols - ci);
2172 uw += cw + cg;
2173
2174 if (gaps)
2175 resize(c, cx, cy, cw - (2*bw), ch - (2*bw), bw, 0);
2176 else
2177 resize(c, cx - bw, cy - bw, cw - bw, ch - (rows == 1 ? 2 : 1)*bw, bw, 0);
2178 }
2179}
2180
2181void
2182togglebar(const Arg *arg)
2183{
2184 selmon->showbar = selmon->pertag->showbars[selmon->pertag->curtag] = !selmon->showbar;
2185 updatebarpos(selmon);
2186 XMoveResizeWindow(dpy, selmon->barwin, selmon->wx, selmon->by, selmon->ww, bh);
2187 arrange(selmon);
2188}
2189
2190void
2191togglefloating(const Arg *arg)
2192{
2193 if (!selmon->sel)
2194 return;
2195 if (selmon->sel->isfullscreen) /* no support for fullscreen windows */
2196 return;
2197 selmon->sel->isfloating = !selmon->sel->isfloating || selmon->sel->isfixed;
2198 if (selmon->sel->isfloating)
2199 XSetWindowBorder(dpy, selmon->sel->win, scheme[SchemeSel][ColFloat].pixel);
2200 else
2201 XSetWindowBorder(dpy, selmon->sel->win, scheme[SchemeSel][ColBorder].pixel);
2202 if (selmon->sel->isfloating)
2203 resize(selmon->sel, selmon->sel->x, selmon->sel->y,
2204 selmon->sel->w - 2 * (borderpx - selmon->sel->bw),
2205 selmon->sel->h - 2 * (borderpx - selmon->sel->bw),
2206 borderpx, 0);
2207 arrange(selmon);
2208}
2209
2210void
2211togglegaps(const Arg *arg)
2212{
2213 selmon->pertag->enablegaps[selmon->pertag->curtag] = !selmon->pertag->enablegaps[selmon->pertag->curtag];
2214 arrange(selmon);
2215}
2216
2217void
2218togglesticky(const Arg *arg)
2219{
2220 if (!selmon->sel)
2221 return;
2222 selmon->sel->issticky = !selmon->sel->issticky;
2223 arrange(selmon);
2224}
2225
2226void
2227toggletag(const Arg *arg)
2228{
2229 unsigned int newtags;
2230
2231 if (!selmon->sel)
2232 return;
2233 newtags = selmon->sel->tags ^ (arg->ui & TAGMASK);
2234 if (newtags) {
2235 selmon->sel->tags = newtags;
2236 setclienttagprop(selmon->sel);
2237 focus(NULL);
2238 arrange(selmon);
2239 }
2240}
2241
2242void
2243toggleview(const Arg *arg)
2244{
2245 unsigned int newtagset = selmon->tagset[selmon->seltags] ^ (arg->ui & TAGMASK);
2246 int i;
2247
2248 if (newtagset) {
2249 if (newtagset == ~0) {
2250 selmon->pertag->prevtag = selmon->pertag->curtag;
2251 selmon->pertag->curtag = 0;
2252 }
2253 /* test if the user did not select the same tag */
2254 if (!(newtagset & 1 << (selmon->pertag->curtag - 1))) {
2255 selmon->pertag->prevtag = selmon->pertag->curtag;
2256 for (i = 0; !(newtagset & 1 << i); i++);
2257 selmon->pertag->curtag = i + 1;
2258 }
2259 selmon->tagset[selmon->seltags] = newtagset;
2260
2261 /* apply settings for this view */
2262 selmon->gap = selmon->pertag->gaps[selmon->pertag->curtag];
2263 selmon->nmaster = selmon->pertag->nmasters[selmon->pertag->curtag];
2264 selmon->sellt = selmon->pertag->sellts[selmon->pertag->curtag];
2265 selmon->lt[selmon->sellt] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt];
2266 selmon->lt[selmon->sellt ^ 1] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt^1];
2267 focus(NULL);
2268 arrange(selmon);
2269 } else {
2270 selmon->tagset[selmon->seltags] = newtagset;
2271 focus(NULL);
2272 arrange(selmon);
2273 }
2274
2275 settagstate();
2276}
2277
2278void
2279unfocus(Client *c, int setfocus)
2280{
2281 if (!c)
2282 return;
2283 grabbuttons(c, 0);
2284 XSetWindowBorder(dpy, c->win, scheme[SchemeNorm][ColBorder].pixel);
2285 if (setfocus) {
2286 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
2287 XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
2288 }
2289}
2290
2291void
2292unmanage(Client *c, int destroyed)
2293{
2294 Monitor *m = c->mon;
2295 XWindowChanges wc;
2296
2297 detach(c);
2298 detachstack(c);
2299 if (!destroyed) {
2300 wc.border_width = c->oldbw;
2301 XGrabServer(dpy); /* avoid race conditions */
2302 XSetErrorHandler(xerrordummy);
2303 XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */
2304 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
2305 setclientstate(c, WithdrawnState);
2306 XSync(dpy, False);
2307 XSetErrorHandler(xerror);
2308 XUngrabServer(dpy);
2309 }
2310 free(c);
2311 focus(NULL);
2312 updateclientlist();
2313 arrange(m);
2314}
2315
2316void
2317unmapnotify(XEvent *e)
2318{
2319 Client *c;
2320 XUnmapEvent *ev = &e->xunmap;
2321
2322 if ((c = wintoclient(ev->window))) {
2323 if (ev->send_event)
2324 setclientstate(c, WithdrawnState);
2325 else
2326 unmanage(c, 0);
2327 }
2328}
2329
2330void
2331updatebars(void)
2332{
2333 Monitor *m;
2334 XSetWindowAttributes wa = {
2335 .override_redirect = True,
2336 .background_pixmap = ParentRelative,
2337 .event_mask = ButtonPressMask|ExposureMask
2338 };
2339 XClassHint ch = {"dwm", "dwm"};
2340 for (m = mons; m; m = m->next) {
2341 if (m->barwin)
2342 continue;
2343 m->barwin = XCreateWindow(dpy, root, m->wx, m->by, m->ww, bh, 0, DefaultDepth(dpy, screen),
2344 CopyFromParent, DefaultVisual(dpy, screen),
2345 CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
2346 XDefineCursor(dpy, m->barwin, cursor[CurNormal]->cursor);
2347 XMapRaised(dpy, m->barwin);
2348 XSetClassHint(dpy, m->barwin, &ch);
2349 }
2350}
2351
2352void
2353updatebarpos(Monitor *m)
2354{
2355 m->wy = m->my;
2356 m->wh = m->mh;
2357 if (m->showbar) {
2358 m->wh -= bh;
2359 m->by = m->topbar ? m->wy : m->wy + m->wh;
2360 m->wy = m->topbar ? m->wy + bh : m->wy;
2361 } else
2362 m->by = -bh;
2363}
2364
2365void
2366updateclientlist()
2367{
2368 Client *c;
2369 Monitor *m;
2370
2371 XDeleteProperty(dpy, root, netatom[NetClientList]);
2372 for (m = mons; m; m = m->next)
2373 for (c = m->clients; c; c = c->next)
2374 XChangeProperty(dpy, root, netatom[NetClientList],
2375 XA_WINDOW, 32, PropModeAppend,
2376 (unsigned char *) &(c->win), 1);
2377}
2378
2379int
2380updategeom(void)
2381{
2382 int dirty = 0;
2383
2384#ifdef XINERAMA
2385 if (XineramaIsActive(dpy)) {
2386 int i, j, n, nn;
2387 Client *c;
2388 Monitor *m;
2389 XineramaScreenInfo *info = XineramaQueryScreens(dpy, &nn);
2390 XineramaScreenInfo *unique = NULL;
2391
2392 for (n = 0, m = mons; m; m = m->next, n++);
2393 /* only consider unique geometries as separate screens */
2394 unique = ecalloc(nn, sizeof(XineramaScreenInfo));
2395 for (i = 0, j = 0; i < nn; i++)
2396 if (isuniquegeom(unique, j, &info[i]))
2397 memcpy(&unique[j++], &info[i], sizeof(XineramaScreenInfo));
2398 XFree(info);
2399 nn = j;
2400 if (n <= nn) { /* new monitors available */
2401 for (i = 0; i < (nn - n); i++) {
2402 for (m = mons; m && m->next; m = m->next);
2403 if (m)
2404 m->next = createmon();
2405 else
2406 mons = createmon();
2407 }
2408 for (i = 0, m = mons; i < nn && m; m = m->next, i++)
2409 if (i >= n
2410 || unique[i].x_org != m->mx || unique[i].y_org != m->my
2411 || unique[i].width != m->mw || unique[i].height != m->mh)
2412 {
2413 dirty = 1;
2414 m->num = i;
2415 m->mx = m->wx = unique[i].x_org;
2416 m->my = m->wy = unique[i].y_org;
2417 m->mw = m->ww = unique[i].width;
2418 m->mh = m->wh = unique[i].height;
2419 updatebarpos(m);
2420 }
2421 } else { /* less monitors available nn < n */
2422 for (i = nn; i < n; i++) {
2423 for (m = mons; m && m->next; m = m->next);
2424 while ((c = m->clients)) {
2425 dirty = 1;
2426 m->clients = c->next;
2427 detachstack(c);
2428 c->mon = mons;
2429 attach(c);
2430 attachstack(c);
2431 }
2432 if (m == selmon)
2433 selmon = mons;
2434 cleanupmon(m);
2435 }
2436 }
2437 free(unique);
2438 } else
2439#endif /* XINERAMA */
2440 { /* default monitor setup */
2441 if (!mons)
2442 mons = createmon();
2443 if (mons->mw != sw || mons->mh != sh) {
2444 dirty = 1;
2445 mons->mw = mons->ww = sw;
2446 mons->mh = mons->wh = sh;
2447 updatebarpos(mons);
2448 }
2449 }
2450 if (dirty) {
2451 selmon = mons;
2452 selmon = wintomon(root);
2453 }
2454 return dirty;
2455}
2456
2457void
2458updatenumlockmask(void)
2459{
2460 unsigned int i, j;
2461 XModifierKeymap *modmap;
2462
2463 numlockmask = 0;
2464 modmap = XGetModifierMapping(dpy);
2465 for (i = 0; i < 8; i++)
2466 for (j = 0; j < modmap->max_keypermod; j++)
2467 if (modmap->modifiermap[i * modmap->max_keypermod + j]
2468 == XKeysymToKeycode(dpy, XK_Num_Lock))
2469 numlockmask = (1 << i);
2470 XFreeModifiermap(modmap);
2471}
2472
2473void
2474updatesizehints(Client *c)
2475{
2476 long msize;
2477 XSizeHints size;
2478
2479 if (!XGetWMNormalHints(dpy, c->win, &size, &msize))
2480 /* size is uninitialized, ensure that size.flags aren't used */
2481 size.flags = PSize;
2482 if (size.flags & PBaseSize) {
2483 c->basew = size.base_width;
2484 c->baseh = size.base_height;
2485 } else if (size.flags & PMinSize) {
2486 c->basew = size.min_width;
2487 c->baseh = size.min_height;
2488 } else
2489 c->basew = c->baseh = 0;
2490 if (size.flags & PResizeInc) {
2491 c->incw = size.width_inc;
2492 c->inch = size.height_inc;
2493 } else
2494 c->incw = c->inch = 0;
2495 if (size.flags & PMaxSize) {
2496 c->maxw = size.max_width;
2497 c->maxh = size.max_height;
2498 } else
2499 c->maxw = c->maxh = 0;
2500 if (size.flags & PMinSize) {
2501 c->minw = size.min_width;
2502 c->minh = size.min_height;
2503 } else if (size.flags & PBaseSize) {
2504 c->minw = size.base_width;
2505 c->minh = size.base_height;
2506 } else
2507 c->minw = c->minh = 0;
2508 if (size.flags & PAspect) {
2509 c->mina = (float)size.min_aspect.y / size.min_aspect.x;
2510 c->maxa = (float)size.max_aspect.x / size.max_aspect.y;
2511 } else
2512 c->maxa = c->mina = 0.0;
2513 c->isfixed = (c->maxw && c->maxh && c->maxw == c->minw && c->maxh == c->minh);
2514}
2515
2516void
2517updatetitle(Client *c)
2518{
2519 if (!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
2520 gettextprop(c->win, XA_WM_NAME, c->name, sizeof c->name);
2521 if (c->name[0] == '\0') /* hack to mark broken clients */
2522 strcpy(c->name, broken);
2523}
2524
2525void
2526updatewindowtype(Client *c)
2527{
2528 Atom state = getatomprop(c, netatom[NetWMState]);
2529 Atom wtype = getatomprop(c, netatom[NetWMWindowType]);
2530
2531 if (state == netatom[NetWMFullscreen])
2532 setfullscreen(c, 1);
2533 if (wtype == netatom[NetWMWindowTypeDialog])
2534 c->isfloating = 1;
2535}
2536
2537void
2538updatewmhints(Client *c)
2539{
2540 XWMHints *wmh;
2541
2542 if ((wmh = XGetWMHints(dpy, c->win))) {
2543 if (c == selmon->sel && wmh->flags & XUrgencyHint) {
2544 wmh->flags &= ~XUrgencyHint;
2545 XSetWMHints(dpy, c->win, wmh);
2546 } else
2547 c->isurgent = (wmh->flags & XUrgencyHint) ? 1 : 0;
2548 if (wmh->flags & InputHint)
2549 c->neverfocus = !wmh->input;
2550 else
2551 c->neverfocus = 0;
2552 XFree(wmh);
2553 }
2554}
2555
2556void
2557view(const Arg *arg)
2558{
2559 int i;
2560 unsigned int tmptag;
2561
2562 if (arg->ui && (arg->ui & TAGMASK) == selmon->tagset[selmon->seltags])
2563 return;
2564 selmon->seltags ^= 1; /* toggle sel tagset */
2565 if (arg->ui & TAGMASK) {
2566 selmon->tagset[selmon->seltags] = arg->ui & TAGMASK;
2567 selmon->pertag->prevtag = selmon->pertag->curtag;
2568
2569 if (arg->ui == ~0)
2570 selmon->pertag->curtag = 0;
2571 else {
2572 for (i = 0; !(arg->ui & 1 << i); i++) ;
2573 selmon->pertag->curtag = i + 1;
2574 }
2575 } else {
2576 tmptag = selmon->pertag->prevtag;
2577 selmon->pertag->prevtag = selmon->pertag->curtag;
2578 selmon->pertag->curtag = tmptag;
2579 }
2580
2581 selmon->gap = selmon->pertag->gaps[selmon->pertag->curtag];
2582 selmon->nmaster = selmon->pertag->nmasters[selmon->pertag->curtag];
2583 selmon->sellt = selmon->pertag->sellts[selmon->pertag->curtag];
2584 selmon->lt[selmon->sellt] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt];
2585 selmon->lt[selmon->sellt^1] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt^1];
2586
2587 if (selmon->showbar != selmon->pertag->showbars[selmon->pertag->curtag])
2588 togglebar(NULL);
2589 focus(NULL);
2590 arrange(selmon);
2591
2592 settagstate();
2593}
2594
2595Client *
2596wintoclient(Window w)
2597{
2598 Client *c;
2599 Monitor *m;
2600
2601 for (m = mons; m; m = m->next)
2602 for (c = m->clients; c; c = c->next)
2603 if (c->win == w)
2604 return c;
2605 return NULL;
2606}
2607
2608Monitor *
2609wintomon(Window w)
2610{
2611 int x, y;
2612 Client *c;
2613 Monitor *m;
2614
2615 if (w == root && getrootptr(&x, &y))
2616 return recttomon(x, y, 1, 1);
2617 for (m = mons; m; m = m->next)
2618 if (w == m->barwin)
2619 return m;
2620 if ((c = wintoclient(w)))
2621 return c->mon;
2622 return selmon;
2623}
2624
2625/* There's no way to check accesses to destroyed windows, thus those cases are
2626 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
2627 * default error handler, which may call exit. */
2628int
2629xerror(Display *dpy, XErrorEvent *ee)
2630{
2631 if (ee->error_code == BadWindow
2632 || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
2633 || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
2634 || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
2635 || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
2636 || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
2637 || (ee->request_code == X_GrabButton && ee->error_code == BadAccess)
2638 || (ee->request_code == X_GrabKey && ee->error_code == BadAccess)
2639 || (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
2640 return 0;
2641 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
2642 ee->request_code, ee->error_code);
2643 return xerrorxlib(dpy, ee); /* may call exit */
2644}
2645
2646int
2647xerrordummy(Display *dpy, XErrorEvent *ee)
2648{
2649 return 0;
2650}
2651
2652/* Startup Error handler to check if another window manager
2653 * is already running. */
2654int
2655xerrorstart(Display *dpy, XErrorEvent *ee)
2656{
2657 die("dwm: another window manager is already running");
2658 return -1;
2659}
2660
2661void
2662zoom(const Arg *arg)
2663{
2664 Client *c = selmon->sel;
2665
2666 if (!selmon->lt[selmon->sellt]->arrange
2667 || (selmon->sel && selmon->sel->isfloating))
2668 return;
2669 if (c == nextinstack(selmon->clients))
2670 if (!c || !(c = nextinstack(c->next)))
2671 return;
2672 pop(c);
2673}
2674
2675void
2676resourceload(XrmDatabase db, char *name, enum resource_type rtype, void *dst)
2677{
2678 char *sdst = NULL;
2679 int *idst = NULL;
2680 float *fdst = NULL;
2681
2682 sdst = dst;
2683 idst = dst;
2684 fdst = dst;
2685
2686 char fullname[256];
2687 char *type;
2688 XrmValue ret;
2689
2690 snprintf(fullname, sizeof(fullname), "%s.%s", "dwm", name);
2691 fullname[sizeof(fullname) - 1] = '\0';
2692
2693 XrmGetResource(db, fullname, "*", &type, &ret);
2694 if (!(ret.addr == NULL || strncmp("String", type, 64)))
2695 {
2696 switch (rtype) {
2697 case STRING:
2698 strcpy(sdst, ret.addr);
2699 break;
2700 case INTEGER:
2701 *idst = strtoul(ret.addr, NULL, 10);
2702 break;
2703 case FLOAT:
2704 *fdst = strtof(ret.addr, NULL);
2705 break;
2706 }
2707 }
2708}
2709
2710int
2711main(int argc, char *argv[])
2712{
2713 if (argc == 2 && !strcmp("-v", argv[1]))
2714 die("dwm-"VERSION);
2715 else if (argc != 1)
2716 die("usage: dwm [-v]");
2717 if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
2718 fputs("warning: no locale support\n", stderr);
2719 if (!(dpy = XOpenDisplay(NULL)))
2720 die("dwm: cannot open display");
2721 checkotherwm();
2722 XrmInitialize();
2723 loadxresources();
2724 setup();
2725#ifdef __OpenBSD__
2726 if (pledge("stdio rpath proc exec", NULL) == -1)
2727 die("pledge");
2728#endif /* __OpenBSD__ */
2729 scan();
2730 run();
2731 cleanup();
2732 XCloseDisplay(dpy);
2733 return EXIT_SUCCESS;
2734}
