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-rw-r--r--src/core/dwm.c2735
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diff --git a/src/core/dwm.c b/src/core/dwm.c
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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 <X11/Xatom.h>
24#include <X11/Xlib.h>
25#include <X11/Xproto.h>
26#include <X11/Xutil.h>
27#include <X11/cursorfont.h>
28#include <X11/keysym.h>
29#include <errno.h>
30#include <locale.h>
31#include <signal.h>
32#include <stdarg.h>
33#include <stdio.h>
34#include <stdlib.h>
35#include <string.h>
36#include <sys/types.h>
37#include <sys/wait.h>
38#include <unistd.h>
39#ifdef XINERAMA
40#include <X11/extensions/Xinerama.h>
41#endif /* XINERAMA */
42#include <X11/Xft/Xft.h>
43#include <X11/Xlib-xcb.h>
44#include <xcb/res.h>
45#ifdef __OpenBSD__
46#include <kvm.h>
47#include <sys/sysctl.h>
48#endif /* __OpenBSD */
49
50#include "../drw/drw.h"
51#include "../util/util.h"
52#include <X11/XF86keysym.h>
53
54/* macros */
55#define BUTTONMASK (ButtonPressMask | ButtonReleaseMask)
56#define CLEANMASK(mask) \
57 (mask & ~(numlockmask | LockMask) & \
58 (ShiftMask | ControlMask | Mod1Mask | Mod2Mask | Mod3Mask | Mod4Mask | \
59 Mod5Mask))
60#define INTERSECT(x, y, w, h, m) \
61 (MAX(0, MIN((x) + (w), (m)->wx + (m)->ww) - MAX((x), (m)->wx)) * \
62 MAX(0, MIN((y) + (h), (m)->wy + (m)->wh) - MAX((y), (m)->wy)))
63#define ISVISIBLE(C) ((C->tags & C->mon->tagset[C->mon->seltags]))
64#define LENGTH(X) (sizeof X / sizeof X[0])
65#define MOUSEMASK (BUTTONMASK | PointerMotionMask)
66#define WIDTH(X) ((X)->w + 2 * (X)->bw)
67#define HEIGHT(X) ((X)->h + 2 * (X)->bw)
68#define TAGMASK ((1 << LENGTH(tags)) - 1)
69#define TEXTW(X) (drw_fontset_getwidth(drw, (X)) + lrpad)
70
71#define SYSTEM_TRAY_REQUEST_DOCK 0
72/* XEMBED messages */
73#define XEMBED_EMBEDDED_NOTIFY 0
74#define XEMBED_WINDOW_ACTIVATE 1
75#define XEMBED_FOCUS_IN 4
76#define XEMBED_MODALITY_ON 10
77#define XEMBED_MAPPED (1 << 0)
78#define XEMBED_WINDOW_ACTIVATE 1
79#define XEMBED_WINDOW_DEACTIVATE 2
80#define VERSION_MAJOR 0
81#define VERSION_MINOR 0
82#define XEMBED_EMBEDDED_VERSION (VERSION_MAJOR << 16) | VERSION_MINOR
83
84/* enums */
85enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
86enum { SchemeNorm, SchemeSel }; /* color schemes */
87enum {
88 NetSupported,
89 NetWMName,
90 NetWMState,
91 NetWMCheck,
92 NetSystemTray,
93 NetSystemTrayOP,
94 NetSystemTrayOrientation,
95 NetSystemTrayOrientationHorz,
96 NetWMFullscreen,
97 NetActiveWindow,
98 NetWMWindowType,
99 NetWMWindowTypeDialog,
100 NetClientList,
101 NetLast
102}; /* EWMH atoms */
103enum { Manager, Xembed, XembedInfo, XLast }; /* Xembed atoms */
104enum {
105 WMProtocols,
106 WMDelete,
107 WMState,
108 WMTakeFocus,
109 WMLast
110}; /* default atoms */
111enum {
112 ClkTagBar,
113 ClkLtSymbol,
114 ClkStatusText,
115 ClkWinTitle,
116 ClkClientWin,
117 ClkRootWin,
118 ClkLast
119}; /* clicks */
120
121typedef union {
122 int i;
123 unsigned int ui;
124 float f;
125 const void *v;
126} Arg;
127
128typedef struct {
129 unsigned int click;
130 unsigned int mask;
131 unsigned int button;
132 void (*func)(const Arg *arg);
133 const Arg arg;
134} Button;
135
136typedef struct Monitor Monitor;
137typedef struct Client Client;
138struct Client {
139 char name[256];
140 float mina, maxa;
141 int x, y, w, h;
142 int oldx, oldy, oldw, oldh;
143 int basew, baseh, incw, inch, maxw, maxh, minw, minh, hintsvalid;
144 int bw, oldbw;
145 unsigned int tags;
146 int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen,
147 isterminal, noswallow;
148 pid_t pid;
149 Client *next;
150 Client *snext;
151 Client *swallowing;
152 Monitor *mon;
153 Window win;
154};
155
156typedef struct {
157 unsigned int mod;
158 KeySym keysym;
159 void (*func)(const Arg *);
160 const Arg arg;
161} Key;
162
163typedef struct {
164 const char *symbol;
165 void (*arrange)(Monitor *);
166} Layout;
167
168struct Monitor {
169 char ltsymbol[16];
170 float mfact;
171 int nmaster;
172 int num;
173 int by; /* bar geometry */
174 int mx, my, mw, mh; /* screen size */
175 int wx, wy, ww, wh; /* window area */
176 int gappih; /* horizontal gap between windows */
177 int gappiv; /* vertical gap between windows */
178 int gappoh; /* horizontal outer gaps */
179 int gappov; /* vertical outer gaps */
180 unsigned int seltags;
181 unsigned int sellt;
182 unsigned int tagset[2];
183 int showbar;
184 int topbar;
185 Client *clients;
186 Client *sel;
187 Client *stack;
188 Monitor *next;
189 Window barwin;
190 const Layout *lt[2];
191};
192
193typedef struct {
194 const char *class;
195 const char *instance;
196 const char *title;
197 unsigned int tags;
198 int isfloating;
199 int isterminal;
200 int noswallow;
201 int monitor;
202} Rule;
203
204typedef struct Systray Systray;
205struct Systray {
206 Window win;
207 Client *icons;
208};
209
210/* function declarations */
211static void applyrules(Client *c);
212static int applysizehints(Client *c, int *x, int *y, int *w, int *h,
213 int interact);
214static void arrange(Monitor *m);
215static void arrangemon(Monitor *m);
216static void attach(Client *c);
217static void attachstack(Client *c);
218static void buttonpress(XEvent *e);
219static void checkotherwm(void);
220static void cleanup(void);
221static void cleanupmon(Monitor *mon);
222static void clientmessage(XEvent *e);
223static void configure(Client *c);
224static void configurenotify(XEvent *e);
225static void configurerequest(XEvent *e);
226static Monitor *createmon(void);
227static void destroynotify(XEvent *e);
228static void detach(Client *c);
229static void detachstack(Client *c);
230static Monitor *dirtomon(int dir);
231static void drawbar(Monitor *m);
232static void drawbars(void);
233static void enternotify(XEvent *e);
234static void expose(XEvent *e);
235static void focus(Client *c);
236static void focusin(XEvent *e);
237static void focusmon(const Arg *arg);
238static void focusstack(const Arg *arg);
239static Atom getatomprop(Client *c, Atom prop);
240static int getrootptr(int *x, int *y);
241static long getstate(Window w);
242static unsigned int getsystraywidth();
243static int gettextprop(Window w, Atom atom, char *text, unsigned int size);
244static void grabbuttons(Client *c, int focused);
245static void grabkeys(void);
246static void incnmaster(const Arg *arg);
247static void keypress(XEvent *e);
248static void killclient(const Arg *arg);
249static void manage(Window w, XWindowAttributes *wa);
250static void mappingnotify(XEvent *e);
251static void maprequest(XEvent *e);
252static void monocle(Monitor *m);
253static void motionnotify(XEvent *e);
254static void movemouse(const Arg *arg);
255static Client *nexttiled(Client *c);
256static void pop(Client *c);
257static void propertynotify(XEvent *e);
258static void quit(const Arg *arg);
259static Monitor *recttomon(int x, int y, int w, int h);
260static void removesystrayicon(Client *i);
261static void resize(Client *c, int x, int y, int w, int h, int interact);
262static void resizebarwin(Monitor *m);
263static void resizeclient(Client *c, int x, int y, int w, int h);
264static void resizemouse(const Arg *arg);
265static void resizerequest(XEvent *e);
266static void restack(Monitor *m);
267static void run(void);
268static void scan(void);
269static int sendevent(Window w, Atom proto, int m, long d0, long d1, long d2,
270 long d3, long d4);
271static void sendmon(Client *c, Monitor *m);
272static void setclientstate(Client *c, long state);
273static void setfocus(Client *c);
274static void setfullscreen(Client *c, int fullscreen);
275static void setgaps(int oh, int ov, int ih, int iv);
276static void incrgaps(const Arg *arg);
277static void incrigaps(const Arg *arg);
278static void incrogaps(const Arg *arg);
279static void incrohgaps(const Arg *arg);
280static void incrovgaps(const Arg *arg);
281static void incrihgaps(const Arg *arg);
282static void incrivgaps(const Arg *arg);
283static void togglegaps(const Arg *arg);
284static void defaultgaps(const Arg *arg);
285static void setlayout(const Arg *arg);
286static void setmfact(const Arg *arg);
287static void setup(void);
288static void seturgent(Client *c, int urg);
289static void showhide(Client *c);
290static void spawn(const Arg *arg);
291static Monitor *systraytomon(Monitor *m);
292static void tag(const Arg *arg);
293static void tagmon(const Arg *arg);
294static void tile(Monitor *m);
295static void togglebar(const Arg *arg);
296static void togglefloating(const Arg *arg);
297static void togglefullscr(const Arg *arg);
298static void toggletag(const Arg *arg);
299static void toggleview(const Arg *arg);
300static void unfocus(Client *c, int setfocus);
301static void unmanage(Client *c, int destroyed);
302static void unmapnotify(XEvent *e);
303static void updatebarpos(Monitor *m);
304static void updatebars(void);
305static void updateclientlist(void);
306static int updategeom(void);
307static void updatenumlockmask(void);
308static void updatesystray(void);
309static void updatesystrayicongeom(Client *i, int w, int h);
310static void updatesystrayiconstate(Client *i, XPropertyEvent *ev);
311static void updatesizehints(Client *c);
312static void updatestatus(void);
313static void updatetitle(Client *c);
314static void updatewindowtype(Client *c);
315static void updatewmhints(Client *c);
316static void view(const Arg *arg);
317static Client *wintoclient(Window w);
318static Monitor *wintomon(Window w);
319static Client *wintosystrayicon(Window w);
320static int xerror(Display *dpy, XErrorEvent *ee);
321static int xerrordummy(Display *dpy, XErrorEvent *ee);
322static int xerrorstart(Display *dpy, XErrorEvent *ee);
323static void zoom(const Arg *arg);
324
325static pid_t getparentprocess(pid_t p);
326static int isdescprocess(pid_t p, pid_t c);
327static Client *swallowingclient(Window w);
328static Client *termforwin(const Client *c);
329static pid_t winpid(Window w);
330
331/* variables */
332static Systray *systray = NULL;
333static const char broken[] = "broken";
334static char stext[256];
335static int screen;
336static int sw, sh; /* X display screen geometry width, height */
337static int bh; /* bar height */
338static int enablegaps = 1; /* enables gaps, used by togglegaps */
339static int lrpad; /* sum of left and right padding for text */
340static int (*xerrorxlib)(Display *, XErrorEvent *);
341static unsigned int numlockmask = 0;
342static void (*handler[LASTEvent])(XEvent *) = {
343 [ButtonPress] = buttonpress,
344 [ClientMessage] = clientmessage,
345 [ConfigureRequest] = configurerequest,
346 [ConfigureNotify] = configurenotify,
347 [DestroyNotify] = destroynotify,
348 [EnterNotify] = enternotify,
349 [Expose] = expose,
350 [FocusIn] = focusin,
351 [KeyPress] = keypress,
352 [MappingNotify] = mappingnotify,
353 [MapRequest] = maprequest,
354 [MotionNotify] = motionnotify,
355 [PropertyNotify] = propertynotify,
356 [ResizeRequest] = resizerequest,
357 [UnmapNotify] = unmapnotify};
358
359static Atom wmatom[WMLast], netatom[NetLast], xatom[XLast];
360static int running = 1;
361static Cur *cursor[CurLast];
362static Clr **scheme;
363static Display *dpy;
364static Drw *drw;
365static Monitor *mons, *selmon;
366static Window root, wmcheckwin;
367
368static xcb_connection_t *xcon;
369
370/* configuration, allows nested code to access above variables */
371#include "../config/config.h"
372
373/* compile-time check if all tags fit into an unsigned int bit array. */
374struct NumTags {
375 char limitexceeded[LENGTH(tags) > 31 ? -1 : 1];
376};
377
378/* function implementations */
379void applyrules(Client *c) {
380 const char *class, *instance;
381 unsigned int i;
382 const Rule *r;
383 Monitor *m;
384 XClassHint ch = {NULL, NULL};
385
386 /* rule matching */
387 c->isfloating = 0;
388 c->tags = 0;
389 XGetClassHint(dpy, c->win, &ch);
390 class = ch.res_class ? ch.res_class : broken;
391 instance = ch.res_name ? ch.res_name : broken;
392
393 for (i = 0; i < LENGTH(rules); i++) {
394 r = &rules[i];
395 if ((!r->title || strstr(c->name, r->title)) &&
396 (!r->class || strstr(class, r->class)) &&
397 (!r->instance || strstr(instance, r->instance))) {
398 c->isterminal = r->isterminal;
399 c->noswallow = r->noswallow;
400 c->isfloating = r->isfloating;
401 c->tags |= r->tags;
402 for (m = mons; m && m->num != r->monitor; m = m->next)
403 ;
404 if (m)
405 c->mon = m;
406 }
407 }
408 if (ch.res_class)
409 XFree(ch.res_class);
410 if (ch.res_name)
411 XFree(ch.res_name);
412 c->tags =
413 c->tags & TAGMASK ? c->tags & TAGMASK : c->mon->tagset[c->mon->seltags];
414}
415
416int applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact) {
417 int baseismin;
418 Monitor *m = c->mon;
419
420 /* set minimum possible */
421 *w = MAX(1, *w);
422 *h = MAX(1, *h);
423 if (interact) {
424 if (*x > sw)
425 *x = sw - WIDTH(c);
426 if (*y > sh)
427 *y = sh - HEIGHT(c);
428 if (*x + *w + 2 * c->bw < 0)
429 *x = 0;
430 if (*y + *h + 2 * c->bw < 0)
431 *y = 0;
432 } else {
433 if (*x >= m->wx + m->ww)
434 *x = m->wx + m->ww - WIDTH(c);
435 if (*y >= m->wy + m->wh)
436 *y = m->wy + m->wh - HEIGHT(c);
437 if (*x + *w + 2 * c->bw <= m->wx)
438 *x = m->wx;
439 if (*y + *h + 2 * c->bw <= m->wy)
440 *y = m->wy;
441 }
442 if (*h < bh)
443 *h = bh;
444 if (*w < bh)
445 *w = bh;
446 if (resizehints || c->isfloating || !c->mon->lt[c->mon->sellt]->arrange) {
447 if (!c->hintsvalid)
448 updatesizehints(c);
449 /* see last two sentences in ICCCM 4.1.2.3 */
450 baseismin = c->basew == c->minw && c->baseh == c->minh;
451 if (!baseismin) { /* temporarily remove base dimensions */
452 *w -= c->basew;
453 *h -= c->baseh;
454 }
455 /* adjust for aspect limits */
456 if (c->mina > 0 && c->maxa > 0) {
457 if (c->maxa < (float)*w / *h)
458 *w = *h * c->maxa + 0.5;
459 else if (c->mina < (float)*h / *w)
460 *h = *w * c->mina + 0.5;
461 }
462 if (baseismin) { /* increment calculation requires this */
463 *w -= c->basew;
464 *h -= c->baseh;
465 }
466 /* adjust for increment value */
467 if (c->incw)
468 *w -= *w % c->incw;
469 if (c->inch)
470 *h -= *h % c->inch;
471 /* restore base dimensions */
472 *w = MAX(*w + c->basew, c->minw);
473 *h = MAX(*h + c->baseh, c->minh);
474 if (c->maxw)
475 *w = MIN(*w, c->maxw);
476 if (c->maxh)
477 *h = MIN(*h, c->maxh);
478 }
479 return *x != c->x || *y != c->y || *w != c->w || *h != c->h;
480}
481
482void arrange(Monitor *m) {
483 if (m)
484 showhide(m->stack);
485 else
486 for (m = mons; m; m = m->next)
487 showhide(m->stack);
488 if (m) {
489 arrangemon(m);
490 restack(m);
491 } else
492 for (m = mons; m; m = m->next)
493 arrangemon(m);
494}
495
496void arrangemon(Monitor *m) {
497 strncpy(m->ltsymbol, m->lt[m->sellt]->symbol, sizeof m->ltsymbol);
498 if (m->lt[m->sellt]->arrange)
499 m->lt[m->sellt]->arrange(m);
500}
501
502void attach(Client *c) {
503 c->next = c->mon->clients;
504 c->mon->clients = c;
505}
506
507void attachstack(Client *c) {
508 c->snext = c->mon->stack;
509 c->mon->stack = c;
510}
511
512void swallow(Client *p, Client *c) {
513
514 if (c->noswallow || c->isterminal)
515 return;
516 if (c->noswallow && !swallowfloating && c->isfloating)
517 return;
518
519 detach(c);
520 detachstack(c);
521
522 setclientstate(c, WithdrawnState);
523 XUnmapWindow(dpy, p->win);
524
525 p->swallowing = c;
526 c->mon = p->mon;
527
528 Window w = p->win;
529 p->win = c->win;
530 c->win = w;
531 updatetitle(p);
532 XMoveResizeWindow(dpy, p->win, p->x, p->y, p->w, p->h);
533 arrange(p->mon);
534 configure(p);
535 updateclientlist();
536}
537
538void unswallow(Client *c) {
539 c->win = c->swallowing->win;
540
541 free(c->swallowing);
542 c->swallowing = NULL;
543
544 /* unfullscreen the client */
545 setfullscreen(c, 0);
546 updatetitle(c);
547 arrange(c->mon);
548 XMapWindow(dpy, c->win);
549 XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
550 setclientstate(c, NormalState);
551 focus(NULL);
552 arrange(c->mon);
553}
554
555void buttonpress(XEvent *e) {
556 unsigned int i, x, click;
557 Arg arg = {0};
558 Client *c;
559 Monitor *m;
560 XButtonPressedEvent *ev = &e->xbutton;
561
562 click = ClkRootWin;
563 /* focus monitor if necessary */
564 if ((m = wintomon(ev->window)) && m != selmon) {
565 unfocus(selmon->sel, 1);
566 selmon = m;
567 focus(NULL);
568 }
569 if (ev->window == selmon->barwin) {
570 i = x = 0;
571 unsigned int occ = 0;
572 for (c = m->clients; c; c = c->next)
573 occ |= c->tags;
574 do {
575 /* Do not reserve space for vacant tags */
576 if (!(occ & 1 << i || m->tagset[m->seltags] & 1 << i))
577 continue;
578 x += TEXTW(tags[i]);
579 } while (ev->x >= x && ++i < LENGTH(tags));
580 if (i < LENGTH(tags)) {
581 click = ClkTagBar;
582 arg.ui = 1 << i;
583 } else if (ev->x < x + TEXTW(selmon->ltsymbol))
584 click = ClkLtSymbol;
585 else if (ev->x > selmon->ww - (int)TEXTW(stext) - getsystraywidth())
586 click = ClkStatusText;
587 else
588 click = ClkWinTitle;
589 } else if ((c = wintoclient(ev->window))) {
590 focus(c);
591 restack(selmon);
592 XAllowEvents(dpy, ReplayPointer, CurrentTime);
593 click = ClkClientWin;
594 }
595 for (i = 0; i < LENGTH(buttons); i++)
596 if (click == buttons[i].click && buttons[i].func &&
597 buttons[i].button == ev->button &&
598 CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
599 buttons[i].func(
600 click == ClkTagBar && buttons[i].arg.i == 0 ? &arg : &buttons[i].arg);
601}
602
603void checkotherwm(void) {
604 xerrorxlib = XSetErrorHandler(xerrorstart);
605 /* this causes an error if some other window manager is running */
606 XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask);
607 XSync(dpy, False);
608 XSetErrorHandler(xerror);
609 XSync(dpy, False);
610}
611
612void cleanup(void) {
613 Arg a = {.ui = ~0};
614 Layout foo = {"", NULL};
615 Monitor *m;
616 size_t i;
617
618 view(&a);
619 selmon->lt[selmon->sellt] = &foo;
620 for (m = mons; m; m = m->next)
621 while (m->stack)
622 unmanage(m->stack, 0);
623 XUngrabKey(dpy, AnyKey, AnyModifier, root);
624 while (mons)
625 cleanupmon(mons);
626
627 if (showsystray) {
628 XUnmapWindow(dpy, systray->win);
629 XDestroyWindow(dpy, systray->win);
630 free(systray);
631 }
632
633 for (i = 0; i < CurLast; i++)
634 drw_cur_free(drw, cursor[i]);
635 for (i = 0; i < LENGTH(colors); i++)
636 free(scheme[i]);
637 free(scheme);
638 XDestroyWindow(dpy, wmcheckwin);
639 drw_free(drw);
640 XSync(dpy, False);
641 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
642 XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
643}
644
645void cleanupmon(Monitor *mon) {
646 Monitor *m;
647
648 if (mon == mons)
649 mons = mons->next;
650 else {
651 for (m = mons; m && m->next != mon; m = m->next)
652 ;
653 m->next = mon->next;
654 }
655 XUnmapWindow(dpy, mon->barwin);
656 XDestroyWindow(dpy, mon->barwin);
657 free(mon);
658}
659
660void clientmessage(XEvent *e) {
661 XWindowAttributes wa;
662 XSetWindowAttributes swa;
663 XClientMessageEvent *cme = &e->xclient;
664 Client *c = wintoclient(cme->window);
665
666 if (showsystray && cme->window == systray->win &&
667 cme->message_type == netatom[NetSystemTrayOP]) {
668 /* add systray icons */
669 if (cme->data.l[1] == SYSTEM_TRAY_REQUEST_DOCK) {
670 if (!(c = (Client *)calloc(1, sizeof(Client))))
671 die("fatal: could not malloc() %u bytes\n", sizeof(Client));
672 if (!(c->win = cme->data.l[2])) {
673 free(c);
674 return;
675 }
676 c->mon = selmon;
677 c->next = systray->icons;
678 systray->icons = c;
679 if (!XGetWindowAttributes(dpy, c->win, &wa)) {
680 /* use sane defaults */
681 wa.width = bh;
682 wa.height = bh;
683 wa.border_width = 0;
684 }
685 c->x = c->oldx = c->y = c->oldy = 0;
686 c->w = c->oldw = wa.width;
687 c->h = c->oldh = wa.height;
688 c->oldbw = wa.border_width;
689 c->bw = 0;
690 c->isfloating = True;
691 /* reuse tags field as mapped status */
692 c->tags = 1;
693 updatesizehints(c);
694 updatesystrayicongeom(c, wa.width, wa.height);
695 XAddToSaveSet(dpy, c->win);
696 XSelectInput(dpy, c->win,
697 StructureNotifyMask | PropertyChangeMask |
698 ResizeRedirectMask);
699 XReparentWindow(dpy, c->win, systray->win, 0, 0);
700 /* use parents background color */
701 swa.background_pixel = scheme[SchemeNorm][ColBg].pixel;
702 XChangeWindowAttributes(dpy, c->win, CWBackPixel, &swa);
703 sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime,
704 XEMBED_EMBEDDED_NOTIFY, 0, systray->win,
705 XEMBED_EMBEDDED_VERSION);
706 /* FIXME not sure if I have to send these events, too */
707 sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime,
708 XEMBED_FOCUS_IN, 0, systray->win, XEMBED_EMBEDDED_VERSION);
709 sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime,
710 XEMBED_WINDOW_ACTIVATE, 0, systray->win,
711 XEMBED_EMBEDDED_VERSION);
712 sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime,
713 XEMBED_MODALITY_ON, 0, systray->win, XEMBED_EMBEDDED_VERSION);
714 XSync(dpy, False);
715 resizebarwin(selmon);
716 updatesystray();
717 setclientstate(c, NormalState);
718 }
719 return;
720 }
721
722 if (!c)
723 return;
724 if (cme->message_type == netatom[NetWMState]) {
725 if (cme->data.l[1] == netatom[NetWMFullscreen] ||
726 cme->data.l[2] == netatom[NetWMFullscreen])
727 setfullscreen(c, (cme->data.l[0] == 1 /* _NET_WM_STATE_ADD */
728 || (cme->data.l[0] == 2 /* _NET_WM_STATE_TOGGLE */
729 && !c->isfullscreen)));
730 } else if (cme->message_type == netatom[NetActiveWindow]) {
731 if (c != selmon->sel && !c->isurgent)
732 seturgent(c, 1);
733 }
734}
735
736void configure(Client *c) {
737 XConfigureEvent ce;
738
739 ce.type = ConfigureNotify;
740 ce.display = dpy;
741 ce.event = c->win;
742 ce.window = c->win;
743 ce.x = c->x;
744 ce.y = c->y;
745 ce.width = c->w;
746 ce.height = c->h;
747 ce.border_width = c->bw;
748 ce.above = None;
749 ce.override_redirect = False;
750 XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce);
751}
752
753void configurenotify(XEvent *e) {
754 Monitor *m;
755 Client *c;
756 XConfigureEvent *ev = &e->xconfigure;
757 int dirty;
758
759 /* TODO: updategeom handling sucks, needs to be simplified */
760 if (ev->window == root) {
761 dirty = (sw != ev->width || sh != ev->height);
762 sw = ev->width;
763 sh = ev->height;
764 if (updategeom() || dirty) {
765 drw_resize(drw, sw, bh);
766 updatebars();
767 for (m = mons; m; m = m->next) {
768 for (c = m->clients; c; c = c->next)
769 if (c->isfullscreen)
770 resizeclient(c, m->mx, m->my, m->mw, m->mh);
771 resizebarwin(m);
772 }
773 focus(NULL);
774 arrange(NULL);
775 }
776 }
777}
778
779void configurerequest(XEvent *e) {
780 Client *c;
781 Monitor *m;
782 XConfigureRequestEvent *ev = &e->xconfigurerequest;
783 XWindowChanges wc;
784
785 if ((c = wintoclient(ev->window))) {
786 if (ev->value_mask & CWBorderWidth)
787 c->bw = ev->border_width;
788 else if (c->isfloating || !selmon->lt[selmon->sellt]->arrange) {
789 m = c->mon;
790 if (ev->value_mask & CWX) {
791 c->oldx = c->x;
792 c->x = m->mx + ev->x;
793 }
794 if (ev->value_mask & CWY) {
795 c->oldy = c->y;
796 c->y = m->my + ev->y;
797 }
798 if (ev->value_mask & CWWidth) {
799 c->oldw = c->w;
800 c->w = ev->width;
801 }
802 if (ev->value_mask & CWHeight) {
803 c->oldh = c->h;
804 c->h = ev->height;
805 }
806 if ((c->x + c->w) > m->mx + m->mw && c->isfloating)
807 c->x = m->mx + (m->mw / 2 - WIDTH(c) / 2); /* center in x direction */
808 if ((c->y + c->h) > m->my + m->mh && c->isfloating)
809 c->y = m->my + (m->mh / 2 - HEIGHT(c) / 2); /* center in y direction */
810 if ((ev->value_mask & (CWX | CWY)) &&
811 !(ev->value_mask & (CWWidth | CWHeight)))
812 configure(c);
813 if (ISVISIBLE(c))
814 XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
815 } else
816 configure(c);
817 } else {
818 wc.x = ev->x;
819 wc.y = ev->y;
820 wc.width = ev->width;
821 wc.height = ev->height;
822 wc.border_width = ev->border_width;
823 wc.sibling = ev->above;
824 wc.stack_mode = ev->detail;
825 XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
826 }
827 XSync(dpy, False);
828}
829
830Monitor *createmon(void) {
831 Monitor *m;
832
833 m = ecalloc(1, sizeof(Monitor));
834 m->tagset[0] = m->tagset[1] = 1;
835 m->mfact = mfact;
836 m->nmaster = nmaster;
837 m->showbar = showbar;
838 m->topbar = topbar;
839 m->gappih = gappih;
840 m->gappiv = gappiv;
841 m->gappoh = gappoh;
842 m->gappov = gappov;
843 m->lt[0] = &layouts[0];
844 m->lt[1] = &layouts[1 % LENGTH(layouts)];
845 strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol);
846 return m;
847}
848
849void destroynotify(XEvent *e) {
850 Client *c;
851 XDestroyWindowEvent *ev = &e->xdestroywindow;
852
853 if ((c = wintoclient(ev->window)))
854 unmanage(c, 1);
855 else if ((c = wintosystrayicon(ev->window))) {
856 removesystrayicon(c);
857 resizebarwin(selmon);
858 updatesystray();
859 } else if ((c = swallowingclient(ev->window)))
860 unmanage(c->swallowing, 1);
861}
862
863void detach(Client *c) {
864 Client **tc;
865
866 for (tc = &c->mon->clients; *tc && *tc != c; tc = &(*tc)->next)
867 ;
868 *tc = c->next;
869}
870
871void detachstack(Client *c) {
872 Client **tc, *t;
873
874 for (tc = &c->mon->stack; *tc && *tc != c; tc = &(*tc)->snext)
875 ;
876 *tc = c->snext;
877
878 if (c == c->mon->sel) {
879 for (t = c->mon->stack; t && !ISVISIBLE(t); t = t->snext)
880 ;
881 c->mon->sel = t;
882 }
883}
884
885Monitor *dirtomon(int dir) {
886 Monitor *m = NULL;
887
888 if (dir > 0) {
889 if (!(m = selmon->next))
890 m = mons;
891 } else if (selmon == mons)
892 for (m = mons; m->next; m = m->next)
893 ;
894 else
895 for (m = mons; m->next != selmon; m = m->next)
896 ;
897 return m;
898}
899
900void drawbar(Monitor *m) {
901 int x, w, tw = 0, stw = 0;
902 int boxs = drw->fonts->h / 9;
903 int boxw = drw->fonts->h / 6 + 2;
904 unsigned int i, occ = 0, urg = 0;
905 Client *c;
906
907 if (!m->showbar)
908 return;
909
910 if (showsystray && m == systraytomon(m) && !systrayonleft)
911 stw = getsystraywidth();
912
913 /* draw status first so it can be overdrawn by tags later */
914 if (m == selmon) { /* status is only drawn on selected monitor */
915 drw_setscheme(drw, scheme[SchemeNorm]);
916 tw = TEXTW(stext) - lrpad / 2 + 2; /* 2px extra right padding */
917 drw_text(drw, m->ww - tw - stw, 0, tw, bh, lrpad / 2 - 2, stext, 0);
918 }
919
920 resizebarwin(m);
921 for (c = m->clients; c; c = c->next) {
922 occ |= c->tags;
923 if (c->isurgent)
924 urg |= c->tags;
925 }
926 x = 0;
927 for (i = 0; i < LENGTH(tags); i++) {
928 /* Do not draw vacant tags */
929 if (!(occ & 1 << i || m->tagset[m->seltags] & 1 << i))
930 continue;
931 w = TEXTW(tags[i]);
932 drw_setscheme(
933 drw, scheme[m->tagset[m->seltags] & 1 << i ? SchemeSel : SchemeNorm]);
934 drw_text(drw, x, 0, w, bh, lrpad / 2, tags[i], urg & 1 << i);
935 if (occ & 1 << i)
936 drw_rect(drw, x + boxs, boxs, boxw, boxw,
937 m == selmon && selmon->sel && selmon->sel->tags & 1 << i,
938 urg & 1 << i);
939 x += w;
940 }
941 w = TEXTW(m->ltsymbol);
942 drw_setscheme(drw, scheme[SchemeNorm]);
943 x = drw_text(drw, x, 0, w, bh, lrpad / 2, m->ltsymbol, 0);
944
945 if ((w = m->ww - tw - stw - x) > bh) {
946 if (m->sel) {
947 drw_setscheme(drw, scheme[m == selmon ? SchemeSel : SchemeNorm]);
948 drw_text(drw, x, 0, w, bh, lrpad / 2, m->sel->name, 0);
949 if (m->sel->isfloating)
950 drw_rect(drw, x + boxs, boxs, boxw, boxw, m->sel->isfixed, 0);
951 } else {
952 drw_setscheme(drw, scheme[SchemeNorm]);
953 drw_rect(drw, x, 0, w, bh, 1, 1);
954 }
955 }
956 drw_map(drw, m->barwin, 0, 0, m->ww - stw, bh);
957}
958
959void drawbars(void) {
960 Monitor *m;
961
962 for (m = mons; m; m = m->next)
963 drawbar(m);
964}
965
966void enternotify(XEvent *e) {
967 Client *c;
968 Monitor *m;
969 XCrossingEvent *ev = &e->xcrossing;
970
971 if ((ev->mode != NotifyNormal || ev->detail == NotifyInferior) &&
972 ev->window != root)
973 return;
974 c = wintoclient(ev->window);
975 m = c ? c->mon : wintomon(ev->window);
976 if (m != selmon) {
977 unfocus(selmon->sel, 1);
978 selmon = m;
979 } else if (!c || c == selmon->sel)
980 return;
981 focus(c);
982}
983
984void expose(XEvent *e) {
985 Monitor *m;
986 XExposeEvent *ev = &e->xexpose;
987
988 if (ev->count == 0 && (m = wintomon(ev->window))) {
989 drawbar(m);
990 if (m == selmon)
991 updatesystray();
992 }
993}
994
995void focus(Client *c) {
996 if (!c || !ISVISIBLE(c))
997 for (c = selmon->stack; c && !ISVISIBLE(c); c = c->snext)
998 ;
999 if (selmon->sel && selmon->sel != c)
1000 unfocus(selmon->sel, 0);
1001 if (c) {
1002 if (c->mon != selmon)
1003 selmon = c->mon;
1004 if (c->isurgent)
1005 seturgent(c, 0);
1006 detachstack(c);
1007 attachstack(c);
1008 grabbuttons(c, 1);
1009 XSetWindowBorder(dpy, c->win, scheme[SchemeSel][ColBorder].pixel);
1010 setfocus(c);
1011 } else {
1012 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
1013 XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
1014 }
1015 selmon->sel = c;
1016 drawbars();
1017}
1018
1019/* there are some broken focus acquiring clients needing extra handling */
1020void focusin(XEvent *e) {
1021 XFocusChangeEvent *ev = &e->xfocus;
1022
1023 if (selmon->sel && ev->window != selmon->sel->win)
1024 setfocus(selmon->sel);
1025}
1026
1027void focusmon(const Arg *arg) {
1028 Monitor *m;
1029
1030 if (!mons->next)
1031 return;
1032 if ((m = dirtomon(arg->i)) == selmon)
1033 return;
1034 unfocus(selmon->sel, 0);
1035 selmon = m;
1036 focus(NULL);
1037}
1038
1039void focusstack(const Arg *arg) {
1040 Client *c = NULL, *i;
1041
1042 if (!selmon->sel || (selmon->sel->isfullscreen && lockfullscreen))
1043 return;
1044 if (arg->i > 0) {
1045 for (c = selmon->sel->next; c && !ISVISIBLE(c); c = c->next)
1046 ;
1047 if (!c)
1048 for (c = selmon->clients; c && !ISVISIBLE(c); c = c->next)
1049 ;
1050 } else {
1051 for (i = selmon->clients; i != selmon->sel; i = i->next)
1052 if (ISVISIBLE(i))
1053 c = i;
1054 if (!c)
1055 for (; i; i = i->next)
1056 if (ISVISIBLE(i))
1057 c = i;
1058 }
1059 if (c) {
1060 focus(c);
1061 restack(selmon);
1062 }
1063}
1064
1065Atom getatomprop(Client *c, Atom prop) {
1066 int di;
1067 unsigned long dl;
1068 unsigned char *p = NULL;
1069 Atom da, atom = None;
1070
1071 /* FIXME getatomprop should return the number of items and a pointer to
1072 * the stored data instead of this workaround */
1073 Atom req = XA_ATOM;
1074 if (prop == xatom[XembedInfo])
1075 req = xatom[XembedInfo];
1076
1077 if (XGetWindowProperty(dpy, c->win, prop, 0L, sizeof atom, False, req, &da,
1078 &di, &dl, &dl, &p) == Success &&
1079 p) {
1080 atom = *(Atom *)p;
1081 if (da == xatom[XembedInfo] && dl == 2)
1082 atom = ((Atom *)p)[1];
1083 XFree(p);
1084 }
1085 return atom;
1086}
1087
1088unsigned int getsystraywidth() {
1089 unsigned int w = 0;
1090 Client *i;
1091 if (showsystray)
1092 for (i = systray->icons; i; w += i->w + systrayspacing, i = i->next)
1093 ;
1094 return w ? w + systrayspacing : 1;
1095}
1096
1097int getrootptr(int *x, int *y) {
1098 int di;
1099 unsigned int dui;
1100 Window dummy;
1101
1102 return XQueryPointer(dpy, root, &dummy, &dummy, x, y, &di, &di, &dui);
1103}
1104
1105long getstate(Window w) {
1106 int format;
1107 long result = -1;
1108 unsigned char *p = NULL;
1109 unsigned long n, extra;
1110 Atom real;
1111
1112 if (XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False,
1113 wmatom[WMState], &real, &format, &n, &extra,
1114 (unsigned char **)&p) != Success)
1115 return -1;
1116 if (n != 0)
1117 result = *p;
1118 XFree(p);
1119 return result;
1120}
1121
1122int gettextprop(Window w, Atom atom, char *text, unsigned int size) {
1123 char **list = NULL;
1124 int n;
1125 XTextProperty name;
1126
1127 if (!text || size == 0)
1128 return 0;
1129 text[0] = '\0';
1130 if (!XGetTextProperty(dpy, w, &name, atom) || !name.nitems)
1131 return 0;
1132 if (name.encoding == XA_STRING) {
1133 strncpy(text, (char *)name.value, size - 1);
1134 } else if (XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success &&
1135 n > 0 && *list) {
1136 strncpy(text, *list, size - 1);
1137 XFreeStringList(list);
1138 }
1139 text[size - 1] = '\0';
1140 XFree(name.value);
1141 return 1;
1142}
1143
1144void grabbuttons(Client *c, int focused) {
1145 updatenumlockmask();
1146 {
1147 unsigned int i, j;
1148 unsigned int modifiers[] = {0, LockMask, numlockmask,
1149 numlockmask | LockMask};
1150 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
1151 if (!focused)
1152 XGrabButton(dpy, AnyButton, AnyModifier, c->win, False, BUTTONMASK,
1153 GrabModeSync, GrabModeSync, None, None);
1154 for (i = 0; i < LENGTH(buttons); i++)
1155 if (buttons[i].click == ClkClientWin)
1156 for (j = 0; j < LENGTH(modifiers); j++)
1157 XGrabButton(dpy, buttons[i].button, buttons[i].mask | modifiers[j],
1158 c->win, False, BUTTONMASK, GrabModeAsync, GrabModeSync,
1159 None, None);
1160 }
1161}
1162
1163void grabkeys(void) {
1164 updatenumlockmask();
1165 {
1166 unsigned int i, j, k;
1167 unsigned int modifiers[] = {0, LockMask, numlockmask,
1168 numlockmask | LockMask};
1169 int start, end, skip;
1170 KeySym *syms;
1171
1172 XUngrabKey(dpy, AnyKey, AnyModifier, root);
1173 XDisplayKeycodes(dpy, &start, &end);
1174 syms = XGetKeyboardMapping(dpy, start, end - start + 1, &skip);
1175 if (!syms)
1176 return;
1177 for (k = start; k <= end; k++)
1178 for (i = 0; i < LENGTH(keys); i++)
1179 /* skip modifier codes, we do that ourselves */
1180 if (keys[i].keysym == syms[(k - start) * skip])
1181 for (j = 0; j < LENGTH(modifiers); j++)
1182 XGrabKey(dpy, k, keys[i].mod | modifiers[j], root, True,
1183 GrabModeAsync, GrabModeAsync);
1184 XFree(syms);
1185 }
1186}
1187
1188void incnmaster(const Arg *arg) {
1189 selmon->nmaster = MAX(selmon->nmaster + arg->i, 0);
1190 arrange(selmon);
1191}
1192
1193#ifdef XINERAMA
1194static int isuniquegeom(XineramaScreenInfo *unique, size_t n,
1195 XineramaScreenInfo *info) {
1196 while (n--)
1197 if (unique[n].x_org == info->x_org && unique[n].y_org == info->y_org &&
1198 unique[n].width == info->width && unique[n].height == info->height)
1199 return 0;
1200 return 1;
1201}
1202#endif /* XINERAMA */
1203
1204void keypress(XEvent *e) {
1205 unsigned int i;
1206 KeySym keysym;
1207 XKeyEvent *ev;
1208
1209 ev = &e->xkey;
1210 keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
1211 for (i = 0; i < LENGTH(keys); i++)
1212 if (keysym == keys[i].keysym &&
1213 CLEANMASK(keys[i].mod) == CLEANMASK(ev->state) && keys[i].func)
1214 keys[i].func(&(keys[i].arg));
1215}
1216
1217void killclient(const Arg *arg) {
1218 if (!selmon->sel)
1219 return;
1220
1221 if (!sendevent(selmon->sel->win, wmatom[WMDelete], NoEventMask,
1222 wmatom[WMDelete], CurrentTime, 0, 0, 0)) {
1223 XGrabServer(dpy);
1224 XSetErrorHandler(xerrordummy);
1225 XSetCloseDownMode(dpy, DestroyAll);
1226 XKillClient(dpy, selmon->sel->win);
1227 XSync(dpy, False);
1228 XSetErrorHandler(xerror);
1229 XUngrabServer(dpy);
1230 }
1231}
1232
1233void manage(Window w, XWindowAttributes *wa) {
1234 Client *c, *t = NULL, *term = NULL;
1235 Window trans = None;
1236 XWindowChanges wc;
1237
1238 c = ecalloc(1, sizeof(Client));
1239 c->win = w;
1240 c->pid = winpid(w);
1241 /* geometry */
1242 c->x = c->oldx = wa->x;
1243 c->y = c->oldy = wa->y;
1244 c->w = c->oldw = wa->width;
1245 c->h = c->oldh = wa->height;
1246 c->oldbw = wa->border_width;
1247
1248 updatetitle(c);
1249 if (XGetTransientForHint(dpy, w, &trans) && (t = wintoclient(trans))) {
1250 c->mon = t->mon;
1251 c->tags = t->tags;
1252 } else {
1253 c->mon = selmon;
1254 applyrules(c);
1255 term = termforwin(c);
1256 }
1257
1258 if (c->x + WIDTH(c) > c->mon->wx + c->mon->ww)
1259 c->x = c->mon->wx + c->mon->ww - WIDTH(c);
1260 if (c->y + HEIGHT(c) > c->mon->wy + c->mon->wh)
1261 c->y = c->mon->wy + c->mon->wh - HEIGHT(c);
1262 c->x = MAX(c->x, c->mon->wx);
1263 c->y = MAX(c->y, c->mon->wy);
1264 c->bw = borderpx;
1265
1266 wc.border_width = c->bw;
1267 XConfigureWindow(dpy, w, CWBorderWidth, &wc);
1268 XSetWindowBorder(dpy, w, scheme[SchemeNorm][ColBorder].pixel);
1269 configure(c); /* propagates border_width, if size doesn't change */
1270 updatewindowtype(c);
1271 updatesizehints(c);
1272 updatewmhints(c);
1273 XSelectInput(dpy, w,
1274 EnterWindowMask | FocusChangeMask | PropertyChangeMask |
1275 StructureNotifyMask);
1276 grabbuttons(c, 0);
1277 if (!c->isfloating)
1278 c->isfloating = c->oldstate = trans != None || c->isfixed;
1279 if (c->isfloating)
1280 XRaiseWindow(dpy, c->win);
1281 attach(c);
1282 attachstack(c);
1283 XChangeProperty(dpy, root, netatom[NetClientList], XA_WINDOW, 32,
1284 PropModeAppend, (unsigned char *)&(c->win), 1);
1285 XMoveResizeWindow(dpy, c->win, c->x + 2 * sw, c->y, c->w,
1286 c->h); /* some windows require this */
1287 setclientstate(c, NormalState);
1288 if (c->mon == selmon)
1289 unfocus(selmon->sel, 0);
1290 c->mon->sel = c;
1291 arrange(c->mon);
1292 XMapWindow(dpy, c->win);
1293 if (term)
1294 swallow(term, c);
1295 focus(NULL);
1296}
1297
1298void mappingnotify(XEvent *e) {
1299 XMappingEvent *ev = &e->xmapping;
1300
1301 XRefreshKeyboardMapping(ev);
1302 if (ev->request == MappingKeyboard)
1303 grabkeys();
1304}
1305
1306void maprequest(XEvent *e) {
1307 static XWindowAttributes wa;
1308 XMapRequestEvent *ev = &e->xmaprequest;
1309
1310 Client *i;
1311 if ((i = wintosystrayicon(ev->window))) {
1312 sendevent(i->win, netatom[Xembed], StructureNotifyMask, CurrentTime,
1313 XEMBED_WINDOW_ACTIVATE, 0, systray->win, XEMBED_EMBEDDED_VERSION);
1314 resizebarwin(selmon);
1315 updatesystray();
1316 }
1317
1318 if (!XGetWindowAttributes(dpy, ev->window, &wa) || wa.override_redirect)
1319 return;
1320 if (!wintoclient(ev->window))
1321 manage(ev->window, &wa);
1322}
1323
1324void monocle(Monitor *m) {
1325 unsigned int n = 0;
1326 Client *c;
1327
1328 for (c = m->clients; c; c = c->next)
1329 if (ISVISIBLE(c))
1330 n++;
1331 if (n > 0) /* override layout symbol */
1332 snprintf(m->ltsymbol, sizeof m->ltsymbol, "[%d]", n);
1333 for (c = nexttiled(m->clients); c; c = nexttiled(c->next))
1334 resize(c, m->wx, m->wy, m->ww - 2 * c->bw, m->wh - 2 * c->bw, 0);
1335}
1336
1337void motionnotify(XEvent *e) {
1338 static Monitor *mon = NULL;
1339 Monitor *m;
1340 XMotionEvent *ev = &e->xmotion;
1341
1342 if (ev->window != root)
1343 return;
1344 if ((m = recttomon(ev->x_root, ev->y_root, 1, 1)) != mon && mon) {
1345 unfocus(selmon->sel, 1);
1346 selmon = m;
1347 focus(NULL);
1348 }
1349 mon = m;
1350}
1351
1352void movemouse(const Arg *arg) {
1353 int x, y, ocx, ocy, nx, ny;
1354 Client *c;
1355 Monitor *m;
1356 XEvent ev;
1357 Time lasttime = 0;
1358
1359 if (!(c = selmon->sel))
1360 return;
1361 if (c->isfullscreen) /* no support moving fullscreen windows by mouse */
1362 return;
1363 restack(selmon);
1364 ocx = c->x;
1365 ocy = c->y;
1366 if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
1367 None, cursor[CurMove]->cursor, CurrentTime) != GrabSuccess)
1368 return;
1369 if (!getrootptr(&x, &y))
1370 return;
1371 do {
1372 XMaskEvent(dpy, MOUSEMASK | ExposureMask | SubstructureRedirectMask, &ev);
1373 switch (ev.type) {
1374 case ConfigureRequest:
1375 case Expose:
1376 case MapRequest:
1377 handler[ev.type](&ev);
1378 break;
1379 case MotionNotify:
1380 if ((ev.xmotion.time - lasttime) <= (1000 / 60))
1381 continue;
1382 lasttime = ev.xmotion.time;
1383
1384 nx = ocx + (ev.xmotion.x - x);
1385 ny = ocy + (ev.xmotion.y - y);
1386 if (abs(selmon->wx - nx) < snap)
1387 nx = selmon->wx;
1388 else if (abs((selmon->wx + selmon->ww) - (nx + WIDTH(c))) < snap)
1389 nx = selmon->wx + selmon->ww - WIDTH(c);
1390 if (abs(selmon->wy - ny) < snap)
1391 ny = selmon->wy;
1392 else if (abs((selmon->wy + selmon->wh) - (ny + HEIGHT(c))) < snap)
1393 ny = selmon->wy + selmon->wh - HEIGHT(c);
1394 if (!c->isfloating && selmon->lt[selmon->sellt]->arrange &&
1395 (abs(nx - c->x) > snap || abs(ny - c->y) > snap))
1396 togglefloating(NULL);
1397 if (!selmon->lt[selmon->sellt]->arrange || c->isfloating)
1398 resize(c, nx, ny, c->w, c->h, 1);
1399 break;
1400 }
1401 } while (ev.type != ButtonRelease);
1402 XUngrabPointer(dpy, CurrentTime);
1403 if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) {
1404 sendmon(c, m);
1405 selmon = m;
1406 focus(NULL);
1407 }
1408}
1409
1410Client *nexttiled(Client *c) {
1411 for (; c && (c->isfloating || !ISVISIBLE(c)); c = c->next)
1412 ;
1413 return c;
1414}
1415
1416void pop(Client *c) {
1417 detach(c);
1418 attach(c);
1419 focus(c);
1420 arrange(c->mon);
1421}
1422
1423void propertynotify(XEvent *e) {
1424 Client *c;
1425 Window trans;
1426 XPropertyEvent *ev = &e->xproperty;
1427
1428 if ((c = wintosystrayicon(ev->window))) {
1429 if (ev->atom == XA_WM_NORMAL_HINTS) {
1430 updatesizehints(c);
1431 updatesystrayicongeom(c, c->w, c->h);
1432 } else
1433 updatesystrayiconstate(c, ev);
1434 resizebarwin(selmon);
1435 updatesystray();
1436 }
1437
1438 if ((ev->window == root) && (ev->atom == XA_WM_NAME))
1439 updatestatus();
1440 else if (ev->state == PropertyDelete)
1441 return; /* ignore */
1442 else if ((c = wintoclient(ev->window))) {
1443 switch (ev->atom) {
1444 default:
1445 break;
1446 case XA_WM_TRANSIENT_FOR:
1447 if (!c->isfloating && (XGetTransientForHint(dpy, c->win, &trans)) &&
1448 (c->isfloating = (wintoclient(trans)) != NULL))
1449 arrange(c->mon);
1450 break;
1451 case XA_WM_NORMAL_HINTS:
1452 c->hintsvalid = 0;
1453 break;
1454 case XA_WM_HINTS:
1455 updatewmhints(c);
1456 drawbars();
1457 break;
1458 }
1459 if (ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
1460 updatetitle(c);
1461 if (c == c->mon->sel)
1462 drawbar(c->mon);
1463 }
1464 if (ev->atom == netatom[NetWMWindowType])
1465 updatewindowtype(c);
1466 }
1467}
1468
1469void quit(const Arg *arg) { running = 0; }
1470
1471Monitor *recttomon(int x, int y, int w, int h) {
1472 Monitor *m, *r = selmon;
1473 int a, area = 0;
1474
1475 for (m = mons; m; m = m->next)
1476 if ((a = INTERSECT(x, y, w, h, m)) > area) {
1477 area = a;
1478 r = m;
1479 }
1480 return r;
1481}
1482
1483void removesystrayicon(Client *i) {
1484 Client **ii;
1485
1486 if (!showsystray || !i)
1487 return;
1488 for (ii = &systray->icons; *ii && *ii != i; ii = &(*ii)->next)
1489 ;
1490 if (ii)
1491 *ii = i->next;
1492 free(i);
1493}
1494
1495void resize(Client *c, int x, int y, int w, int h, int interact) {
1496 if (applysizehints(c, &x, &y, &w, &h, interact))
1497 resizeclient(c, x, y, w, h);
1498}
1499
1500void resizebarwin(Monitor *m) {
1501 unsigned int w = m->ww;
1502 if (showsystray && m == systraytomon(m) && !systrayonleft)
1503 w -= getsystraywidth();
1504 XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, w, bh);
1505}
1506
1507void resizeclient(Client *c, int x, int y, int w, int h) {
1508 XWindowChanges wc;
1509
1510 c->oldx = c->x;
1511 c->x = wc.x = x;
1512 c->oldy = c->y;
1513 c->y = wc.y = y;
1514 c->oldw = c->w;
1515 c->w = wc.width = w;
1516 c->oldh = c->h;
1517 c->h = wc.height = h;
1518 wc.border_width = c->bw;
1519 XConfigureWindow(dpy, c->win, CWX | CWY | CWWidth | CWHeight | CWBorderWidth,
1520 &wc);
1521 configure(c);
1522 XSync(dpy, False);
1523}
1524
1525void resizerequest(XEvent *e) {
1526 XResizeRequestEvent *ev = &e->xresizerequest;
1527 Client *i;
1528
1529 if ((i = wintosystrayicon(ev->window))) {
1530 updatesystrayicongeom(i, ev->width, ev->height);
1531 resizebarwin(selmon);
1532 updatesystray();
1533 }
1534}
1535
1536void resizemouse(const Arg *arg) {
1537 int ocx, ocy, nw, nh;
1538 Client *c;
1539 Monitor *m;
1540 XEvent ev;
1541 Time lasttime = 0;
1542
1543 if (!(c = selmon->sel))
1544 return;
1545 if (c->isfullscreen) /* no support resizing fullscreen windows by mouse */
1546 return;
1547 restack(selmon);
1548 ocx = c->x;
1549 ocy = c->y;
1550 if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
1551 None, cursor[CurResize]->cursor, CurrentTime) != GrabSuccess)
1552 return;
1553 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1,
1554 c->h + c->bw - 1);
1555 do {
1556 XMaskEvent(dpy, MOUSEMASK | ExposureMask | SubstructureRedirectMask, &ev);
1557 switch (ev.type) {
1558 case ConfigureRequest:
1559 case Expose:
1560 case MapRequest:
1561 handler[ev.type](&ev);
1562 break;
1563 case MotionNotify:
1564 if ((ev.xmotion.time - lasttime) <= (1000 / 60))
1565 continue;
1566 lasttime = ev.xmotion.time;
1567
1568 nw = MAX(ev.xmotion.x - ocx - 2 * c->bw + 1, 1);
1569 nh = MAX(ev.xmotion.y - ocy - 2 * c->bw + 1, 1);
1570 if (c->mon->wx + nw >= selmon->wx &&
1571 c->mon->wx + nw <= selmon->wx + selmon->ww &&
1572 c->mon->wy + nh >= selmon->wy &&
1573 c->mon->wy + nh <= selmon->wy + selmon->wh) {
1574 if (!c->isfloating && selmon->lt[selmon->sellt]->arrange &&
1575 (abs(nw - c->w) > snap || abs(nh - c->h) > snap))
1576 togglefloating(NULL);
1577 }
1578 if (!selmon->lt[selmon->sellt]->arrange || c->isfloating)
1579 resize(c, c->x, c->y, nw, nh, 1);
1580 break;
1581 }
1582 } while (ev.type != ButtonRelease);
1583 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1,
1584 c->h + c->bw - 1);
1585 XUngrabPointer(dpy, CurrentTime);
1586 while (XCheckMaskEvent(dpy, EnterWindowMask, &ev))
1587 ;
1588 if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) {
1589 sendmon(c, m);
1590 selmon = m;
1591 focus(NULL);
1592 }
1593}
1594
1595void restack(Monitor *m) {
1596 Client *c;
1597 XEvent ev;
1598 XWindowChanges wc;
1599
1600 drawbar(m);
1601 if (!m->sel)
1602 return;
1603 if (m->sel->isfloating || !m->lt[m->sellt]->arrange)
1604 XRaiseWindow(dpy, m->sel->win);
1605 if (m->lt[m->sellt]->arrange) {
1606 wc.stack_mode = Below;
1607 wc.sibling = m->barwin;
1608 for (c = m->stack; c; c = c->snext)
1609 if (!c->isfloating && ISVISIBLE(c)) {
1610 XConfigureWindow(dpy, c->win, CWSibling | CWStackMode, &wc);
1611 wc.sibling = c->win;
1612 }
1613 }
1614 XSync(dpy, False);
1615 while (XCheckMaskEvent(dpy, EnterWindowMask, &ev))
1616 ;
1617}
1618
1619void run(void) {
1620 XEvent ev;
1621 /* main event loop */
1622 XSync(dpy, False);
1623 while (running && !XNextEvent(dpy, &ev))
1624 if (handler[ev.type])
1625 handler[ev.type](&ev); /* call handler */
1626}
1627
1628void scan(void) {
1629 unsigned int i, num;
1630 Window d1, d2, *wins = NULL;
1631 XWindowAttributes wa;
1632
1633 if (XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
1634 for (i = 0; i < num; i++) {
1635 if (!XGetWindowAttributes(dpy, wins[i], &wa) || wa.override_redirect ||
1636 XGetTransientForHint(dpy, wins[i], &d1))
1637 continue;
1638 if (wa.map_state == IsViewable || getstate(wins[i]) == IconicState)
1639 manage(wins[i], &wa);
1640 }
1641 for (i = 0; i < num; i++) { /* now the transients */
1642 if (!XGetWindowAttributes(dpy, wins[i], &wa))
1643 continue;
1644 if (XGetTransientForHint(dpy, wins[i], &d1) &&
1645 (wa.map_state == IsViewable || getstate(wins[i]) == IconicState))
1646 manage(wins[i], &wa);
1647 }
1648 if (wins)
1649 XFree(wins);
1650 }
1651}
1652
1653void sendmon(Client *c, Monitor *m) {
1654 if (c->mon == m)
1655 return;
1656 unfocus(c, 1);
1657 detach(c);
1658 detachstack(c);
1659 c->mon = m;
1660 c->tags = m->tagset[m->seltags]; /* assign tags of target monitor */
1661 attach(c);
1662 attachstack(c);
1663 focus(NULL);
1664 arrange(NULL);
1665}
1666
1667void setclientstate(Client *c, long state) {
1668 long data[] = {state, None};
1669
1670 XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,
1671 PropModeReplace, (unsigned char *)data, 2);
1672}
1673
1674int sendevent(Window w, Atom proto, int mask, long d0, long d1, long d2,
1675 long d3, long d4) {
1676 int n;
1677 Atom *protocols, mt;
1678 int exists = 0;
1679 XEvent ev;
1680
1681 if (proto == wmatom[WMTakeFocus] || proto == wmatom[WMDelete]) {
1682 mt = wmatom[WMProtocols];
1683 if (XGetWMProtocols(dpy, w, &protocols, &n)) {
1684 while (!exists && n--)
1685 exists = protocols[n] == proto;
1686 XFree(protocols);
1687 }
1688 } else {
1689 exists = True;
1690 mt = proto;
1691 }
1692
1693 if (exists) {
1694 ev.type = ClientMessage;
1695 ev.xclient.window = w;
1696 ev.xclient.message_type = mt;
1697 ev.xclient.format = 32;
1698 ev.xclient.data.l[0] = d0;
1699 ev.xclient.data.l[1] = d1;
1700 ev.xclient.data.l[2] = d2;
1701 ev.xclient.data.l[3] = d3;
1702 ev.xclient.data.l[4] = d4;
1703 XSendEvent(dpy, w, False, mask, &ev);
1704 }
1705 return exists;
1706}
1707
1708void setfocus(Client *c) {
1709 if (!c->neverfocus) {
1710 XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
1711 XChangeProperty(dpy, root, netatom[NetActiveWindow], XA_WINDOW, 32,
1712 PropModeReplace, (unsigned char *)&(c->win), 1);
1713 }
1714 sendevent(c->win, wmatom[WMTakeFocus], NoEventMask, wmatom[WMTakeFocus],
1715 CurrentTime, 0, 0, 0);
1716}
1717
1718void setfullscreen(Client *c, int fullscreen) {
1719 if (fullscreen && !c->isfullscreen) {
1720 XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
1721 PropModeReplace, (unsigned char *)&netatom[NetWMFullscreen],
1722 1);
1723 c->isfullscreen = 1;
1724 c->oldstate = c->isfloating;
1725 c->oldbw = c->bw;
1726 c->bw = 0;
1727 c->isfloating = 1;
1728 resizeclient(c, c->mon->mx, c->mon->my, c->mon->mw, c->mon->mh);
1729 XRaiseWindow(dpy, c->win);
1730 } else if (!fullscreen && c->isfullscreen) {
1731 XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
1732 PropModeReplace, (unsigned char *)0, 0);
1733 c->isfullscreen = 0;
1734 c->isfloating = c->oldstate;
1735 c->bw = c->oldbw;
1736 c->x = c->oldx;
1737 c->y = c->oldy;
1738 c->w = c->oldw;
1739 c->h = c->oldh;
1740 resizeclient(c, c->x, c->y, c->w, c->h);
1741 arrange(c->mon);
1742 }
1743}
1744
1745void setgaps(int oh, int ov, int ih, int iv) {
1746 if (oh < 0)
1747 oh = 0;
1748 if (ov < 0)
1749 ov = 0;
1750 if (ih < 0)
1751 ih = 0;
1752 if (iv < 0)
1753 iv = 0;
1754
1755 selmon->gappoh = oh;
1756 selmon->gappov = ov;
1757 selmon->gappih = ih;
1758 selmon->gappiv = iv;
1759 arrange(selmon);
1760}
1761
1762void togglegaps(const Arg *arg) {
1763 enablegaps = !enablegaps;
1764 arrange(selmon);
1765}
1766
1767void defaultgaps(const Arg *arg) { setgaps(gappoh, gappov, gappih, gappiv); }
1768
1769void incrgaps(const Arg *arg) {
1770 setgaps(selmon->gappoh + arg->i, selmon->gappov + arg->i,
1771 selmon->gappih + arg->i, selmon->gappiv + arg->i);
1772}
1773
1774void incrigaps(const Arg *arg) {
1775 setgaps(selmon->gappoh, selmon->gappov, selmon->gappih + arg->i,
1776 selmon->gappiv + arg->i);
1777}
1778
1779void incrogaps(const Arg *arg) {
1780 setgaps(selmon->gappoh + arg->i, selmon->gappov + arg->i, selmon->gappih,
1781 selmon->gappiv);
1782}
1783
1784void incrohgaps(const Arg *arg) {
1785 setgaps(selmon->gappoh + arg->i, selmon->gappov, selmon->gappih,
1786 selmon->gappiv);
1787}
1788
1789void incrovgaps(const Arg *arg) {
1790 setgaps(selmon->gappoh, selmon->gappov + arg->i, selmon->gappih,
1791 selmon->gappiv);
1792}
1793
1794void incrihgaps(const Arg *arg) {
1795 setgaps(selmon->gappoh, selmon->gappov, selmon->gappih + arg->i,
1796 selmon->gappiv);
1797}
1798
1799void incrivgaps(const Arg *arg) {
1800 setgaps(selmon->gappoh, selmon->gappov, selmon->gappih,
1801 selmon->gappiv + arg->i);
1802}
1803
1804void setlayout(const Arg *arg) {
1805 if (!arg || !arg->v || arg->v != selmon->lt[selmon->sellt])
1806 selmon->sellt ^= 1;
1807 if (arg && arg->v)
1808 selmon->lt[selmon->sellt] = (Layout *)arg->v;
1809 strncpy(selmon->ltsymbol, selmon->lt[selmon->sellt]->symbol,
1810 sizeof selmon->ltsymbol);
1811 if (selmon->sel)
1812 arrange(selmon);
1813 else
1814 drawbar(selmon);
1815}
1816
1817/* arg > 1.0 will set mfact absolutely */
1818void setmfact(const Arg *arg) {
1819 float f;
1820
1821 if (!arg || !selmon->lt[selmon->sellt]->arrange)
1822 return;
1823 f = arg->f < 1.0 ? arg->f + selmon->mfact : arg->f - 1.0;
1824 if (f < 0.05 || f > 0.95)
1825 return;
1826 selmon->mfact = f;
1827 arrange(selmon);
1828}
1829
1830void setup(void) {
1831 int i;
1832 XSetWindowAttributes wa;
1833 Atom utf8string;
1834 struct sigaction sa;
1835
1836 /* do not transform children into zombies when they terminate */
1837 sigemptyset(&sa.sa_mask);
1838 sa.sa_flags = SA_NOCLDSTOP | SA_NOCLDWAIT | SA_RESTART;
1839 sa.sa_handler = SIG_IGN;
1840 sigaction(SIGCHLD, &sa, NULL);
1841
1842 /* clean up any zombies (inherited from .xinitrc etc) immediately */
1843 while (waitpid(-1, NULL, WNOHANG) > 0)
1844 ;
1845
1846 /* init screen */
1847 screen = DefaultScreen(dpy);
1848 sw = DisplayWidth(dpy, screen);
1849 sh = DisplayHeight(dpy, screen);
1850 root = RootWindow(dpy, screen);
1851 drw = drw_create(dpy, screen, root, sw, sh);
1852 if (!drw_fontset_create(drw, fonts, LENGTH(fonts)))
1853 die("no fonts could be loaded.");
1854 lrpad = drw->fonts->h;
1855 bh = drw->fonts->h + 2;
1856 updategeom();
1857 /* init atoms */
1858 utf8string = XInternAtom(dpy, "UTF8_STRING", False);
1859 wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
1860 wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
1861 wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);
1862 wmatom[WMTakeFocus] = XInternAtom(dpy, "WM_TAKE_FOCUS", False);
1863 netatom[NetActiveWindow] = XInternAtom(dpy, "_NET_ACTIVE_WINDOW", False);
1864 netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
1865 netatom[NetSystemTray] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_S0", False);
1866 netatom[NetSystemTrayOP] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_OPCODE", False);
1867 netatom[NetSystemTrayOrientation] =
1868 XInternAtom(dpy, "_NET_SYSTEM_TRAY_ORIENTATION", False);
1869 netatom[NetSystemTrayOrientationHorz] =
1870 XInternAtom(dpy, "_NET_SYSTEM_TRAY_ORIENTATION_HORZ", False);
1871 netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
1872 netatom[NetWMState] = XInternAtom(dpy, "_NET_WM_STATE", False);
1873 netatom[NetWMCheck] = XInternAtom(dpy, "_NET_SUPPORTING_WM_CHECK", False);
1874 netatom[NetWMFullscreen] =
1875 XInternAtom(dpy, "_NET_WM_STATE_FULLSCREEN", False);
1876 netatom[NetWMWindowType] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False);
1877 netatom[NetWMWindowTypeDialog] =
1878 XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False);
1879 netatom[NetClientList] = XInternAtom(dpy, "_NET_CLIENT_LIST", False);
1880 xatom[Manager] = XInternAtom(dpy, "MANAGER", False);
1881 xatom[Xembed] = XInternAtom(dpy, "_XEMBED", False);
1882 xatom[XembedInfo] = XInternAtom(dpy, "_XEMBED_INFO", False);
1883 /* init cursors */
1884 cursor[CurNormal] = drw_cur_create(drw, XC_left_ptr);
1885 cursor[CurResize] = drw_cur_create(drw, XC_sizing);
1886 cursor[CurMove] = drw_cur_create(drw, XC_fleur);
1887 /* init appearance */
1888 scheme = ecalloc(LENGTH(colors), sizeof(Clr *));
1889 for (i = 0; i < LENGTH(colors); i++)
1890 scheme[i] = drw_scm_create(drw, colors[i], 3);
1891 /* init system tray */
1892 updatesystray();
1893 /* init bars */
1894 updatebars();
1895 updatestatus();
1896 /* supporting window for NetWMCheck */
1897 wmcheckwin = XCreateSimpleWindow(dpy, root, 0, 0, 1, 1, 0, 0, 0);
1898 XChangeProperty(dpy, wmcheckwin, netatom[NetWMCheck], XA_WINDOW, 32,
1899 PropModeReplace, (unsigned char *)&wmcheckwin, 1);
1900 XChangeProperty(dpy, wmcheckwin, netatom[NetWMName], utf8string, 8,
1901 PropModeReplace, (unsigned char *)"dwm", 3);
1902 XChangeProperty(dpy, root, netatom[NetWMCheck], XA_WINDOW, 32,
1903 PropModeReplace, (unsigned char *)&wmcheckwin, 1);
1904 /* EWMH support per view */
1905 XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
1906 PropModeReplace, (unsigned char *)netatom, NetLast);
1907 XDeleteProperty(dpy, root, netatom[NetClientList]);
1908 /* select events */
1909 wa.cursor = cursor[CurNormal]->cursor;
1910 wa.event_mask = SubstructureRedirectMask | SubstructureNotifyMask |
1911 ButtonPressMask | PointerMotionMask | EnterWindowMask |
1912 LeaveWindowMask | StructureNotifyMask | PropertyChangeMask;
1913 XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
1914 XSelectInput(dpy, root, wa.event_mask);
1915 grabkeys();
1916 focus(NULL);
1917}
1918
1919void seturgent(Client *c, int urg) {
1920 XWMHints *wmh;
1921
1922 c->isurgent = urg;
1923 if (!(wmh = XGetWMHints(dpy, c->win)))
1924 return;
1925 wmh->flags = urg ? (wmh->flags | XUrgencyHint) : (wmh->flags & ~XUrgencyHint);
1926 XSetWMHints(dpy, c->win, wmh);
1927 XFree(wmh);
1928}
1929
1930void showhide(Client *c) {
1931 if (!c)
1932 return;
1933 if (ISVISIBLE(c)) {
1934 /* show clients top down */
1935 XMoveWindow(dpy, c->win, c->x, c->y);
1936 if ((!c->mon->lt[c->mon->sellt]->arrange || c->isfloating) &&
1937 !c->isfullscreen)
1938 resize(c, c->x, c->y, c->w, c->h, 0);
1939 showhide(c->snext);
1940 } else {
1941 /* hide clients bottom up */
1942 showhide(c->snext);
1943 XMoveWindow(dpy, c->win, WIDTH(c) * -2, c->y);
1944 }
1945}
1946
1947void spawn(const Arg *arg) {
1948 struct sigaction sa;
1949
1950 if (arg->v == dmenucmd)
1951 dmenumon[0] = '0' + selmon->num;
1952 if (fork() == 0) {
1953 if (dpy)
1954 close(ConnectionNumber(dpy));
1955 setsid();
1956
1957 sigemptyset(&sa.sa_mask);
1958 sa.sa_flags = 0;
1959 sa.sa_handler = SIG_DFL;
1960 sigaction(SIGCHLD, &sa, NULL);
1961
1962 execvp(((char **)arg->v)[0], (char **)arg->v);
1963 die("dwm: execvp '%s' failed:", ((char **)arg->v)[0]);
1964 }
1965}
1966
1967void tag(const Arg *arg) {
1968 if (selmon->sel && arg->ui & TAGMASK) {
1969 selmon->sel->tags = arg->ui & TAGMASK;
1970 focus(NULL);
1971 arrange(selmon);
1972 }
1973}
1974
1975void tagmon(const Arg *arg) {
1976 if (!selmon->sel || !mons->next)
1977 return;
1978 sendmon(selmon->sel, dirtomon(arg->i));
1979}
1980
1981void tile(Monitor *m) {
1982 unsigned int i, n, h, r, oe = enablegaps, ie = enablegaps, mw, my, ty;
1983 Client *c;
1984
1985 for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++)
1986 ;
1987 if (n == 0)
1988 return;
1989 if (smartgaps == n) {
1990 oe = 0; // outer gaps disabled
1991 }
1992
1993 if (n > m->nmaster)
1994 mw = m->nmaster ? (m->ww + m->gappiv * ie) * m->mfact : 0;
1995 else
1996 mw = m->ww - 2 * m->gappov * oe + m->gappiv * ie;
1997 for (i = 0, my = ty = m->gappoh * oe, c = nexttiled(m->clients); c;
1998 c = nexttiled(c->next), i++)
1999 if (i < m->nmaster) {
2000 r = MIN(n, m->nmaster) - i;
2001 h = (m->wh - my - m->gappoh * oe - m->gappih * ie * (r - 1)) / r;
2002 resize(c, m->wx + m->gappov * oe, m->wy + my,
2003 mw - (2 * c->bw) - m->gappiv * ie, h - (2 * c->bw), 0);
2004 my += HEIGHT(c) + m->gappih * ie;
2005
2006 if (my + HEIGHT(c) < m->wh)
2007 my += HEIGHT(c);
2008 } else {
2009 r = n - i;
2010 h = (m->wh - ty - m->gappoh * oe - m->gappih * ie * (r - 1)) / r;
2011 resize(c, m->wx + mw + m->gappov * oe, m->wy + ty,
2012 m->ww - mw - (2 * c->bw) - 2 * m->gappov * oe, h - (2 * c->bw), 0);
2013 ty += HEIGHT(c) + m->gappih * ie;
2014 }
2015}
2016
2017void togglebar(const Arg *arg) {
2018 selmon->showbar = !selmon->showbar;
2019 updatebarpos(selmon);
2020 resizebarwin(selmon);
2021 if (showsystray) {
2022 XWindowChanges wc;
2023 if (!selmon->showbar)
2024 wc.y = -bh;
2025 else if (selmon->showbar) {
2026 wc.y = 0;
2027 if (!selmon->topbar)
2028 wc.y = selmon->mh - bh;
2029 }
2030 XConfigureWindow(dpy, systray->win, CWY, &wc);
2031 }
2032 arrange(selmon);
2033}
2034
2035void togglefloating(const Arg *arg) {
2036 if (!selmon->sel)
2037 return;
2038 if (selmon->sel->isfullscreen) /* no support for fullscreen windows */
2039 return;
2040 selmon->sel->isfloating = !selmon->sel->isfloating || selmon->sel->isfixed;
2041 if (selmon->sel->isfloating)
2042 resize(selmon->sel, selmon->sel->x, selmon->sel->y, selmon->sel->w,
2043 selmon->sel->h, 0);
2044 arrange(selmon);
2045}
2046
2047void togglefullscr(const Arg *arg) {
2048 if (selmon->sel)
2049 setfullscreen(selmon->sel, !selmon->sel->isfullscreen);
2050}
2051
2052void toggletag(const Arg *arg) {
2053 unsigned int newtags;
2054
2055 if (!selmon->sel)
2056 return;
2057 newtags = selmon->sel->tags ^ (arg->ui & TAGMASK);
2058 if (newtags) {
2059 selmon->sel->tags = newtags;
2060 focus(NULL);
2061 arrange(selmon);
2062 }
2063}
2064
2065void toggleview(const Arg *arg) {
2066 unsigned int newtagset =
2067 selmon->tagset[selmon->seltags] ^ (arg->ui & TAGMASK);
2068
2069 if (newtagset) {
2070 selmon->tagset[selmon->seltags] = newtagset;
2071 focus(NULL);
2072 arrange(selmon);
2073 }
2074}
2075
2076void unfocus(Client *c, int setfocus) {
2077 if (!c)
2078 return;
2079 grabbuttons(c, 0);
2080 XSetWindowBorder(dpy, c->win, scheme[SchemeNorm][ColBorder].pixel);
2081 if (setfocus) {
2082 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
2083 XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
2084 }
2085}
2086
2087void unmanage(Client *c, int destroyed) {
2088 Monitor *m = c->mon;
2089 XWindowChanges wc;
2090
2091 if (c->swallowing) {
2092 unswallow(c);
2093 return;
2094 }
2095
2096 Client *s = swallowingclient(c->win);
2097 if (s) {
2098 free(s->swallowing);
2099 s->swallowing = NULL;
2100 arrange(m);
2101 focus(NULL);
2102 return;
2103 }
2104
2105 detach(c);
2106 detachstack(c);
2107 if (!destroyed) {
2108 wc.border_width = c->oldbw;
2109 XGrabServer(dpy); /* avoid race conditions */
2110 XSetErrorHandler(xerrordummy);
2111 XSelectInput(dpy, c->win, NoEventMask);
2112 XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */
2113 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
2114 setclientstate(c, WithdrawnState);
2115 XSync(dpy, False);
2116 XSetErrorHandler(xerror);
2117 XUngrabServer(dpy);
2118 }
2119 free(c);
2120
2121 if (!s) {
2122 arrange(m);
2123 focus(NULL);
2124 updateclientlist();
2125 }
2126}
2127
2128void unmapnotify(XEvent *e) {
2129 Client *c;
2130 XUnmapEvent *ev = &e->xunmap;
2131
2132 if ((c = wintoclient(ev->window))) {
2133 if (ev->send_event)
2134 setclientstate(c, WithdrawnState);
2135 else
2136 unmanage(c, 0);
2137 } else if ((c = wintosystrayicon(ev->window))) {
2138 /* KLUDGE! sometimes icons occasionally unmap their windows, but do
2139 * _not_ destroy them. We map those windows back */
2140 XMapRaised(dpy, c->win);
2141 updatesystray();
2142 }
2143}
2144
2145void updatebars(void) {
2146 unsigned int w;
2147 Monitor *m;
2148 XSetWindowAttributes wa = {.override_redirect = True,
2149 .background_pixmap = ParentRelative,
2150 .event_mask = ButtonPressMask | ExposureMask};
2151 XClassHint ch = {"dwm", "dwm"};
2152 for (m = mons; m; m = m->next) {
2153 if (m->barwin)
2154 continue;
2155 w = m->ww;
2156 if (showsystray && m == systraytomon(m))
2157 w -= getsystraywidth();
2158 m->barwin = XCreateWindow(
2159 dpy, root, m->wx, m->by, w, bh, 0, DefaultDepth(dpy, screen),
2160 CopyFromParent, DefaultVisual(dpy, screen),
2161 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
2162 XDefineCursor(dpy, m->barwin, cursor[CurNormal]->cursor);
2163 if (showsystray && m == systraytomon(m))
2164 XMapRaised(dpy, systray->win);
2165 XMapRaised(dpy, m->barwin);
2166 XSetClassHint(dpy, m->barwin, &ch);
2167 }
2168}
2169
2170void updatebarpos(Monitor *m) {
2171 m->wy = m->my;
2172 m->wh = m->mh;
2173 if (m->showbar) {
2174 m->wh -= bh;
2175 m->by = m->topbar ? m->wy : m->wy + m->wh;
2176 m->wy = m->topbar ? m->wy + bh : m->wy;
2177 } else
2178 m->by = -bh;
2179}
2180
2181void updateclientlist() {
2182 Client *c;
2183 Monitor *m;
2184
2185 XDeleteProperty(dpy, root, netatom[NetClientList]);
2186 for (m = mons; m; m = m->next)
2187 for (c = m->clients; c; c = c->next)
2188 XChangeProperty(dpy, root, netatom[NetClientList], XA_WINDOW, 32,
2189 PropModeAppend, (unsigned char *)&(c->win), 1);
2190}
2191
2192int updategeom(void) {
2193 int dirty = 0;
2194
2195#ifdef XINERAMA
2196 if (XineramaIsActive(dpy)) {
2197 int i, j, n, nn;
2198 Client *c;
2199 Monitor *m;
2200 XineramaScreenInfo *info = XineramaQueryScreens(dpy, &nn);
2201 XineramaScreenInfo *unique = NULL;
2202
2203 for (n = 0, m = mons; m; m = m->next, n++)
2204 ;
2205 /* only consider unique geometries as separate screens */
2206 unique = ecalloc(nn, sizeof(XineramaScreenInfo));
2207 for (i = 0, j = 0; i < nn; i++)
2208 if (isuniquegeom(unique, j, &info[i]))
2209 memcpy(&unique[j++], &info[i], sizeof(XineramaScreenInfo));
2210 XFree(info);
2211 nn = j;
2212
2213 /* new monitors if nn > n */
2214 for (i = n; i < nn; i++) {
2215 for (m = mons; m && m->next; m = m->next)
2216 ;
2217 if (m)
2218 m->next = createmon();
2219 else
2220 mons = createmon();
2221 }
2222 for (i = 0, m = mons; i < nn && m; m = m->next, i++)
2223 if (i >= n || unique[i].x_org != m->mx || unique[i].y_org != m->my ||
2224 unique[i].width != m->mw || unique[i].height != m->mh) {
2225 dirty = 1;
2226 m->num = i;
2227 m->mx = m->wx = unique[i].x_org;
2228 m->my = m->wy = unique[i].y_org;
2229 m->mw = m->ww = unique[i].width;
2230 m->mh = m->wh = unique[i].height;
2231 updatebarpos(m);
2232 }
2233 /* removed monitors if n > nn */
2234 for (i = nn; i < n; i++) {
2235 for (m = mons; m && m->next; m = m->next)
2236 ;
2237 while ((c = m->clients)) {
2238 dirty = 1;
2239 m->clients = c->next;
2240 detachstack(c);
2241 c->mon = mons;
2242 attach(c);
2243 attachstack(c);
2244 }
2245 if (m == selmon)
2246 selmon = mons;
2247 cleanupmon(m);
2248 }
2249 free(unique);
2250 } else
2251#endif /* XINERAMA */
2252 { /* default monitor setup */
2253 if (!mons)
2254 mons = createmon();
2255 if (mons->mw != sw || mons->mh != sh) {
2256 dirty = 1;
2257 mons->mw = mons->ww = sw;
2258 mons->mh = mons->wh = sh;
2259 updatebarpos(mons);
2260 }
2261 }
2262 if (dirty) {
2263 selmon = mons;
2264 selmon = wintomon(root);
2265 }
2266 return dirty;
2267}
2268
2269void updatenumlockmask(void) {
2270 unsigned int i, j;
2271 XModifierKeymap *modmap;
2272
2273 numlockmask = 0;
2274 modmap = XGetModifierMapping(dpy);
2275 for (i = 0; i < 8; i++)
2276 for (j = 0; j < modmap->max_keypermod; j++)
2277 if (modmap->modifiermap[i * modmap->max_keypermod + j] ==
2278 XKeysymToKeycode(dpy, XK_Num_Lock))
2279 numlockmask = (1 << i);
2280 XFreeModifiermap(modmap);
2281}
2282
2283void updatesizehints(Client *c) {
2284 long msize;
2285 XSizeHints size;
2286
2287 if (!XGetWMNormalHints(dpy, c->win, &size, &msize))
2288 /* size is uninitialized, ensure that size.flags aren't used */
2289 size.flags = PSize;
2290 if (size.flags & PBaseSize) {
2291 c->basew = size.base_width;
2292 c->baseh = size.base_height;
2293 } else if (size.flags & PMinSize) {
2294 c->basew = size.min_width;
2295 c->baseh = size.min_height;
2296 } else
2297 c->basew = c->baseh = 0;
2298 if (size.flags & PResizeInc) {
2299 c->incw = size.width_inc;
2300 c->inch = size.height_inc;
2301 } else
2302 c->incw = c->inch = 0;
2303 if (size.flags & PMaxSize) {
2304 c->maxw = size.max_width;
2305 c->maxh = size.max_height;
2306 } else
2307 c->maxw = c->maxh = 0;
2308 if (size.flags & PMinSize) {
2309 c->minw = size.min_width;
2310 c->minh = size.min_height;
2311 } else if (size.flags & PBaseSize) {
2312 c->minw = size.base_width;
2313 c->minh = size.base_height;
2314 } else
2315 c->minw = c->minh = 0;
2316 if (size.flags & PAspect) {
2317 c->mina = (float)size.min_aspect.y / size.min_aspect.x;
2318 c->maxa = (float)size.max_aspect.x / size.max_aspect.y;
2319 } else
2320 c->maxa = c->mina = 0.0;
2321 c->isfixed = (c->maxw && c->maxh && c->maxw == c->minw && c->maxh == c->minh);
2322 c->hintsvalid = 1;
2323}
2324
2325void updatestatus(void) {
2326 if (!gettextprop(root, XA_WM_NAME, stext, sizeof(stext)))
2327 strcpy(stext, "dwm-" VERSION);
2328 drawbar(selmon);
2329 updatesystray();
2330}
2331
2332void updatesystrayicongeom(Client *i, int w, int h) {
2333 if (i) {
2334 i->h = bh;
2335 if (w == h)
2336 i->w = bh;
2337 else if (h == bh)
2338 i->w = w;
2339 else
2340 i->w = (int)((float)bh * ((float)w / (float)h));
2341 applysizehints(i, &(i->x), &(i->y), &(i->w), &(i->h), False);
2342 /* force icons into the systray dimensions if they don't want to */
2343 if (i->h > bh) {
2344 if (i->w == i->h)
2345 i->w = bh;
2346 else
2347 i->w = (int)((float)bh * ((float)i->w / (float)i->h));
2348 i->h = bh;
2349 }
2350 }
2351}
2352
2353void updatesystrayiconstate(Client *i, XPropertyEvent *ev) {
2354 long flags;
2355 int code = 0;
2356
2357 if (!showsystray || !i || ev->atom != xatom[XembedInfo] ||
2358 !(flags = getatomprop(i, xatom[XembedInfo])))
2359 return;
2360
2361 if (flags & XEMBED_MAPPED && !i->tags) {
2362 i->tags = 1;
2363 code = XEMBED_WINDOW_ACTIVATE;
2364 XMapRaised(dpy, i->win);
2365 setclientstate(i, NormalState);
2366 } else if (!(flags & XEMBED_MAPPED) && i->tags) {
2367 i->tags = 0;
2368 code = XEMBED_WINDOW_DEACTIVATE;
2369 XUnmapWindow(dpy, i->win);
2370 setclientstate(i, WithdrawnState);
2371 } else
2372 return;
2373 sendevent(i->win, xatom[Xembed], StructureNotifyMask, CurrentTime, code, 0,
2374 systray->win, XEMBED_EMBEDDED_VERSION);
2375}
2376
2377void updatesystray(void) {
2378 XSetWindowAttributes wa;
2379 XWindowChanges wc;
2380 Client *i;
2381 Monitor *m = systraytomon(NULL);
2382 unsigned int x = m->mx + m->mw;
2383 unsigned int sw = TEXTW(stext) - lrpad + systrayspacing;
2384 unsigned int w = 1;
2385
2386 if (!showsystray)
2387 return;
2388 if (systrayonleft)
2389 x -= sw + lrpad / 2;
2390 if (!systray) {
2391 /* init systray */
2392 if (!(systray = (Systray *)calloc(1, sizeof(Systray))))
2393 die("fatal: could not malloc() %u bytes\n", sizeof(Systray));
2394 systray->win = XCreateSimpleWindow(dpy, root, x, m->by, w, bh, 0, 0,
2395 scheme[SchemeSel][ColBg].pixel);
2396 wa.event_mask = ButtonPressMask | ExposureMask;
2397 wa.override_redirect = True;
2398 wa.background_pixel = scheme[SchemeNorm][ColBg].pixel;
2399 XSelectInput(dpy, systray->win, SubstructureNotifyMask);
2400 XChangeProperty(dpy, systray->win, netatom[NetSystemTrayOrientation],
2401 XA_CARDINAL, 32, PropModeReplace,
2402 (unsigned char *)&netatom[NetSystemTrayOrientationHorz], 1);
2403 XChangeWindowAttributes(
2404 dpy, systray->win, CWEventMask | CWOverrideRedirect | CWBackPixel, &wa);
2405 XMapRaised(dpy, systray->win);
2406 XSetSelectionOwner(dpy, netatom[NetSystemTray], systray->win, CurrentTime);
2407 if (XGetSelectionOwner(dpy, netatom[NetSystemTray]) == systray->win) {
2408 sendevent(root, xatom[Manager], StructureNotifyMask, CurrentTime,
2409 netatom[NetSystemTray], systray->win, 0, 0);
2410 XSync(dpy, False);
2411 } else {
2412 fprintf(stderr, "dwm: unable to obtain system tray.\n");
2413 free(systray);
2414 systray = NULL;
2415 return;
2416 }
2417 }
2418 for (w = 0, i = systray->icons; i; i = i->next) {
2419 /* make sure the background color stays the same */
2420 wa.background_pixel = scheme[SchemeNorm][ColBg].pixel;
2421 XChangeWindowAttributes(dpy, i->win, CWBackPixel, &wa);
2422 XMapRaised(dpy, i->win);
2423 w += systrayspacing;
2424 i->x = w;
2425 XMoveResizeWindow(dpy, i->win, i->x, 0, i->w, i->h);
2426 w += i->w;
2427 if (i->mon != m)
2428 i->mon = m;
2429 }
2430 w = w ? w + systrayspacing : 1;
2431 x -= w;
2432 XMoveResizeWindow(dpy, systray->win, x, m->by, w, bh);
2433 wc.x = x;
2434 wc.y = m->by;
2435 wc.width = w;
2436 wc.height = bh;
2437 wc.stack_mode = Above;
2438 wc.sibling = m->barwin;
2439 XConfigureWindow(dpy, systray->win,
2440 CWX | CWY | CWWidth | CWHeight | CWSibling | CWStackMode,
2441 &wc);
2442 XMapWindow(dpy, systray->win);
2443 XMapSubwindows(dpy, systray->win);
2444 /* redraw background */
2445 XSetForeground(dpy, drw->gc, scheme[SchemeNorm][ColBg].pixel);
2446 XFillRectangle(dpy, systray->win, drw->gc, 0, 0, w, bh);
2447 XSync(dpy, False);
2448}
2449
2450void updatetitle(Client *c) {
2451 if (!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
2452 gettextprop(c->win, XA_WM_NAME, c->name, sizeof c->name);
2453 if (c->name[0] == '\0') /* hack to mark broken clients */
2454 strcpy(c->name, broken);
2455}
2456
2457void updatewindowtype(Client *c) {
2458 Atom state = getatomprop(c, netatom[NetWMState]);
2459 Atom wtype = getatomprop(c, netatom[NetWMWindowType]);
2460
2461 if (state == netatom[NetWMFullscreen])
2462 setfullscreen(c, 1);
2463 if (wtype == netatom[NetWMWindowTypeDialog])
2464 c->isfloating = 1;
2465}
2466
2467void updatewmhints(Client *c) {
2468 XWMHints *wmh;
2469
2470 if ((wmh = XGetWMHints(dpy, c->win))) {
2471 if (c == selmon->sel && wmh->flags & XUrgencyHint) {
2472 wmh->flags &= ~XUrgencyHint;
2473 XSetWMHints(dpy, c->win, wmh);
2474 } else
2475 c->isurgent = (wmh->flags & XUrgencyHint) ? 1 : 0;
2476 if (wmh->flags & InputHint)
2477 c->neverfocus = !wmh->input;
2478 else
2479 c->neverfocus = 0;
2480 XFree(wmh);
2481 }
2482}
2483
2484void view(const Arg *arg) {
2485 if ((arg->ui & TAGMASK) == selmon->tagset[selmon->seltags])
2486 return;
2487 selmon->seltags ^= 1; /* toggle sel tagset */
2488 if (arg->ui & TAGMASK)
2489 selmon->tagset[selmon->seltags] = arg->ui & TAGMASK;
2490 focus(NULL);
2491 arrange(selmon);
2492}
2493
2494pid_t winpid(Window w) {
2495
2496 pid_t result = 0;
2497
2498#ifdef __linux__
2499 xcb_res_client_id_spec_t spec = {0};
2500 spec.client = w;
2501 spec.mask = XCB_RES_CLIENT_ID_MASK_LOCAL_CLIENT_PID;
2502
2503 xcb_generic_error_t *e = NULL;
2504 xcb_res_query_client_ids_cookie_t c =
2505 xcb_res_query_client_ids(xcon, 1, &spec);
2506 xcb_res_query_client_ids_reply_t *r =
2507 xcb_res_query_client_ids_reply(xcon, c, &e);
2508
2509 if (!r)
2510 return (pid_t)0;
2511
2512 xcb_res_client_id_value_iterator_t i =
2513 xcb_res_query_client_ids_ids_iterator(r);
2514 for (; i.rem; xcb_res_client_id_value_next(&i)) {
2515 spec = i.data->spec;
2516 if (spec.mask & XCB_RES_CLIENT_ID_MASK_LOCAL_CLIENT_PID) {
2517 uint32_t *t = xcb_res_client_id_value_value(i.data);
2518 result = *t;
2519 break;
2520 }
2521 }
2522
2523 free(r);
2524
2525 if (result == (pid_t)-1)
2526 result = 0;
2527
2528#endif /* __linux__ */
2529
2530#ifdef __OpenBSD__
2531 Atom type;
2532 int format;
2533 unsigned long len, bytes;
2534 unsigned char *prop;
2535 pid_t ret;
2536
2537 if (XGetWindowProperty(dpy, w, XInternAtom(dpy, "_NET_WM_PID", 0), 0, 1,
2538 False, AnyPropertyType, &type, &format, &len, &bytes,
2539 &prop) != Success ||
2540 !prop)
2541 return 0;
2542
2543 ret = *(pid_t *)prop;
2544 XFree(prop);
2545 result = ret;
2546
2547#endif /* __OpenBSD__ */
2548 return result;
2549}
2550
2551pid_t getparentprocess(pid_t p) {
2552 unsigned int v = 0;
2553
2554#ifdef __linux__
2555 FILE *f;
2556 char buf[256];
2557 snprintf(buf, sizeof(buf) - 1, "/proc/%u/stat", (unsigned)p);
2558
2559 if (!(f = fopen(buf, "r")))
2560 return 0;
2561
2562 fscanf(f, "%*u %*s %*c %u", &v);
2563 fclose(f);
2564#endif /* __linux__ */
2565
2566#ifdef __OpenBSD__
2567 int n;
2568 kvm_t *kd;
2569 struct kinfo_proc *kp;
2570
2571 kd = kvm_openfiles(NULL, NULL, NULL, KVM_NO_FILES, NULL);
2572 if (!kd)
2573 return 0;
2574
2575 kp = kvm_getprocs(kd, KERN_PROC_PID, p, sizeof(*kp), &n);
2576 v = kp->p_ppid;
2577#endif /* __OpenBSD__ */
2578
2579 return (pid_t)v;
2580}
2581
2582int isdescprocess(pid_t p, pid_t c) {
2583 while (p != c && c != 0)
2584 c = getparentprocess(c);
2585
2586 return (int)c;
2587}
2588
2589Client *termforwin(const Client *w) {
2590 Client *c;
2591 Monitor *m;
2592
2593 if (!w->pid || w->isterminal)
2594 return NULL;
2595
2596 for (m = mons; m; m = m->next) {
2597 for (c = m->clients; c; c = c->next) {
2598 if (c->isterminal && !c->swallowing && c->pid &&
2599 isdescprocess(c->pid, w->pid))
2600 return c;
2601 }
2602 }
2603
2604 return NULL;
2605}
2606
2607Client *swallowingclient(Window w) {
2608 Client *c;
2609 Monitor *m;
2610
2611 for (m = mons; m; m = m->next) {
2612 for (c = m->clients; c; c = c->next) {
2613 if (c->swallowing && c->swallowing->win == w)
2614 return c;
2615 }
2616 }
2617
2618 return NULL;
2619}
2620
2621Client *wintoclient(Window w) {
2622 Client *c;
2623 Monitor *m;
2624
2625 for (m = mons; m; m = m->next)
2626 for (c = m->clients; c; c = c->next)
2627 if (c->win == w)
2628 return c;
2629 return NULL;
2630}
2631
2632Client *wintosystrayicon(Window w) {
2633 Client *i = NULL;
2634
2635 if (!showsystray || !w)
2636 return i;
2637 for (i = systray->icons; i && i->win != w; i = i->next)
2638 ;
2639 return i;
2640}
2641
2642Monitor *wintomon(Window w) {
2643 int x, y;
2644 Client *c;
2645 Monitor *m;
2646
2647 if (w == root && getrootptr(&x, &y))
2648 return recttomon(x, y, 1, 1);
2649 for (m = mons; m; m = m->next)
2650 if (w == m->barwin)
2651 return m;
2652 if ((c = wintoclient(w)))
2653 return c->mon;
2654 return selmon;
2655}
2656
2657/* There's no way to check accesses to destroyed windows, thus those cases are
2658 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
2659 * default error handler, which may call exit. */
2660int xerror(Display *dpy, XErrorEvent *ee) {
2661 if (ee->error_code == BadWindow ||
2662 (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch) ||
2663 (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable) ||
2664 (ee->request_code == X_PolyFillRectangle &&
2665 ee->error_code == BadDrawable) ||
2666 (ee->request_code == X_PolySegment && ee->error_code == BadDrawable) ||
2667 (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch) ||
2668 (ee->request_code == X_GrabButton && ee->error_code == BadAccess) ||
2669 (ee->request_code == X_GrabKey && ee->error_code == BadAccess) ||
2670 (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
2671 return 0;
2672 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
2673 ee->request_code, ee->error_code);
2674 return xerrorxlib(dpy, ee); /* may call exit */
2675}
2676
2677int xerrordummy(Display *dpy, XErrorEvent *ee) { return 0; }
2678
2679/* Startup Error handler to check if another window manager
2680 * is already running. */
2681int xerrorstart(Display *dpy, XErrorEvent *ee) {
2682 die("dwm: another window manager is already running");
2683 return -1;
2684}
2685
2686Monitor *systraytomon(Monitor *m) {
2687 Monitor *t;
2688 int i, n;
2689 if (!systraypinning) {
2690 if (!m)
2691 return selmon;
2692 return m == selmon ? m : NULL;
2693 }
2694 for (n = 1, t = mons; t && t->next; n++, t = t->next)
2695 ;
2696 for (i = 1, t = mons; t && t->next && i < systraypinning; i++, t = t->next)
2697 ;
2698 if (systraypinningfailfirst && n < systraypinning)
2699 return mons;
2700 return t;
2701}
2702
2703void zoom(const Arg *arg) {
2704 Client *c = selmon->sel;
2705
2706 if (!selmon->lt[selmon->sellt]->arrange || !c || c->isfloating)
2707 return;
2708 if (c == nexttiled(selmon->clients) && !(c = nexttiled(c->next)))
2709 return;
2710 pop(c);
2711}
2712
2713int main(int argc, char *argv[]) {
2714 if (argc == 2 && !strcmp("-v", argv[1]))
2715 die("dwm-" VERSION);
2716 else if (argc != 1)
2717 die("usage: dwm [-v]");
2718 if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
2719 fputs("warning: no locale support\n", stderr);
2720 if (!(dpy = XOpenDisplay(NULL)))
2721 die("dwm: cannot open display");
2722 if (!(xcon = XGetXCBConnection(dpy)))
2723 die("dwm: cannot get xcb connection\n");
2724 checkotherwm();
2725 setup();
2726#ifdef __OpenBSD__
2727 if (pledge("stdio rpath proc exec ps", NULL) == -1)
2728 die("pledge");
2729#endif /* __OpenBSD__ */
2730 scan();
2731 run();
2732 cleanup();
2733 XCloseDisplay(dpy);
2734 return EXIT_SUCCESS;
2735}
generated by cgit v1.2.3 (git 2.39.1) at 2025-12-17 20:12:18 +0000