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1/* See LICENSE file for copyright and license details.
2 *
3 * dynamic window manager is designed like any other X client as well. It is
4 * driven through handling X events. In contrast to other X clients, a window
5 * manager selects for SubstructureRedirectMask on the root window, to receive
6 * events about window (dis-)appearance. Only one X connection at a time is
7 * allowed to select for this event mask.
8 *
9 * The event handlers of dwm are organized in an array which is accessed
10 * whenever a new event has been fetched. This allows event dispatching
11 * in O(1) time.
12 *
13 * Each child of the root window is called a client, except windows which have
14 * set the override_redirect flag. Clients are organized in a linked client
15 * list on each monitor, the focus history is remembered through a stack list
16 * on each monitor. Each client contains a bit array to indicate the tags of a
17 * client.
18 *
19 * Keys and tagging rules are organized as arrays and defined in config.h.
20 *
21 * To understand everything else, start reading main().
22 */
23#include <errno.h>
24#include <locale.h>
25#include <signal.h>
26#include <stdarg.h>
27#include <stdio.h>
28#include <stdlib.h>
29#include <string.h>
30#include <unistd.h>
31#include <sys/types.h>
32#include <sys/wait.h>
33#include <X11/cursorfont.h>
34#include <X11/keysym.h>
35#include <X11/Xatom.h>
36#include <X11/Xlib.h>
37#include <X11/Xproto.h>
38#include <X11/Xutil.h>
39#ifdef XINERAMA
40#include <X11/extensions/Xinerama.h>
41#endif /* XINERAMA */
42#include <X11/Xft/Xft.h>
43#include <X11/Xlib-xcb.h>
44#include <xcb/res.h>
45#ifdef __OpenBSD__
46#include <sys/sysctl.h>
47#include <kvm.h>
48#endif /* __OpenBSD */
49
50#include "drw.h"
51#include "util.h"
52
53/* macros */
54#define BUTTONMASK (ButtonPressMask|ButtonReleaseMask)
55#define CLEANMASK(mask) (mask & ~(numlockmask|LockMask) & (ShiftMask|ControlMask|Mod1Mask|Mod2Mask|Mod3Mask|Mod4Mask|Mod5Mask))
56#define INTERSECT(x,y,w,h,m) (MAX(0, MIN((x)+(w),(m)->wx+(m)->ww) - MAX((x),(m)->wx)) \
57 * MAX(0, MIN((y)+(h),(m)->wy+(m)->wh) - MAX((y),(m)->wy)))
58#define ISVISIBLE(C) ((C->tags & C->mon->tagset[C->mon->seltags]))
59#define LENGTH(X) (sizeof X / sizeof X[0])
60#define MOUSEMASK (BUTTONMASK|PointerMotionMask)
61#define WIDTH(X) ((X)->w + 2 * (X)->bw)
62#define HEIGHT(X) ((X)->h + 2 * (X)->bw)
63#define TAGMASK ((1 << LENGTH(tags)) - 1)
64#define TEXTW(X) (drw_fontset_getwidth(drw, (X)) + lrpad)
65
66#define SYSTEM_TRAY_REQUEST_DOCK 0
67/* XEMBED messages */
68#define XEMBED_EMBEDDED_NOTIFY 0
69#define XEMBED_WINDOW_ACTIVATE 1
70#define XEMBED_FOCUS_IN 4
71#define XEMBED_MODALITY_ON 10
72#define XEMBED_MAPPED (1 << 0)
73#define XEMBED_WINDOW_ACTIVATE 1
74#define XEMBED_WINDOW_DEACTIVATE 2
75#define VERSION_MAJOR 0
76#define VERSION_MINOR 0
77#define XEMBED_EMBEDDED_VERSION (VERSION_MAJOR << 16) | VERSION_MINOR
78
79/* enums */
80enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
81enum { SchemeNorm, SchemeSel }; /* color schemes */
82enum { NetSupported, NetWMName, NetWMState, NetWMCheck,
83 NetSystemTray, NetSystemTrayOP, NetSystemTrayOrientation,
84 NetSystemTrayOrientationHorz,
85 NetWMFullscreen, NetActiveWindow, NetWMWindowType,
86 NetWMWindowTypeDialog, NetClientList, NetLast
87}; /* EWMH atoms */
88enum { Manager, Xembed, XembedInfo, XLast }; /* Xembed atoms */
89enum { WMProtocols, WMDelete, WMState, WMTakeFocus, WMLast }; /* default atoms */
90enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle,
91 ClkClientWin, ClkRootWin, ClkLast
92}; /* clicks */
93
94typedef union {
95 int i;
96 unsigned int ui;
97 float f;
98 const void *v;
99} Arg;
100
101typedef struct {
102 unsigned int click;
103 unsigned int mask;
104 unsigned int button;
105 void (*func)(const Arg * arg);
106 const Arg arg;
107} Button;
108
109typedef struct Monitor Monitor;
110typedef struct Client Client;
111struct Client {
112 char name[256];
113 float mina, maxa;
114 int x, y, w, h;
115 int oldx, oldy, oldw, oldh;
116 int basew, baseh, incw, inch, maxw, maxh, minw, minh, hintsvalid;
117 int bw, oldbw;
118 unsigned int tags;
119 int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen,
120 isterminal, noswallow;
121 pid_t pid;
122 Client *next;
123 Client *snext;
124 Client *swallowing;
125 Monitor *mon;
126 Window win;
127};
128
129typedef struct {
130 unsigned int mod;
131 KeySym keysym;
132 void (*func)(const Arg *);
133 const Arg arg;
134} Key;
135
136typedef struct {
137 const char *symbol;
138 void (*arrange)(Monitor *);
139} Layout;
140
141struct Monitor {
142 char ltsymbol[16];
143 float mfact;
144 int nmaster;
145 int num;
146 int by; /* bar geometry */
147 int mx, my, mw, mh; /* screen size */
148 int wx, wy, ww, wh; /* window area */
149 int gappih; /* horizontal gap between windows */
150 int gappiv; /* vertical gap between windows */
151 int gappoh; /* horizontal outer gaps */
152 int gappov; /* vertical outer gaps */
153 unsigned int seltags;
154 unsigned int sellt;
155 unsigned int tagset[2];
156 int showbar;
157 int topbar;
158 Client *clients;
159 Client *sel;
160 Client *stack;
161 Monitor *next;
162 Window barwin;
163 const Layout *lt[2];
164};
165
166typedef struct {
167 const char *class;
168 const char *instance;
169 const char *title;
170 unsigned int tags;
171 int isfloating;
172 int isterminal;
173 int noswallow;
174 int monitor;
175} Rule;
176
177typedef struct Systray Systray;
178struct Systray {
179 Window win;
180 Client *icons;
181};
182
183/* function declarations */
184static void applyrules(Client * c);
185static int applysizehints(Client * c, int *x, int *y, int *w, int *h,
186 int interact);
187static void arrange(Monitor * m);
188static void arrangemon(Monitor * m);
189static void attach(Client * c);
190static void attachstack(Client * c);
191static void buttonpress(XEvent * e);
192static void checkotherwm(void);
193static void cleanup(void);
194static void cleanupmon(Monitor * mon);
195static void clientmessage(XEvent * e);
196static void configure(Client * c);
197static void configurenotify(XEvent * e);
198static void configurerequest(XEvent * e);
199static Monitor *createmon(void);
200static void destroynotify(XEvent * e);
201static void detach(Client * c);
202static void detachstack(Client * c);
203static Monitor *dirtomon(int dir);
204static void drawbar(Monitor * m);
205static void drawbars(void);
206static void enternotify(XEvent * e);
207static void expose(XEvent * e);
208static void focus(Client * c);
209static void focusin(XEvent * e);
210static void focusmon(const Arg * arg);
211static void focusstack(const Arg * arg);
212static Atom getatomprop(Client * c, Atom prop);
213static int getrootptr(int *x, int *y);
214static long getstate(Window w);
215static unsigned int getsystraywidth();
216static int gettextprop(Window w, Atom atom, char *text, unsigned int size);
217static void grabbuttons(Client * c, int focused);
218static void grabkeys(void);
219static void incnmaster(const Arg * arg);
220static void keypress(XEvent * e);
221static void killclient(const Arg * arg);
222static void manage(Window w, XWindowAttributes * wa);
223static void mappingnotify(XEvent * e);
224static void maprequest(XEvent * e);
225static void monocle(Monitor * m);
226static void motionnotify(XEvent * e);
227static void movemouse(const Arg * arg);
228static Client *nexttiled(Client * c);
229static void pop(Client * c);
230static void propertynotify(XEvent * e);
231static void quit(const Arg * arg);
232static Monitor *recttomon(int x, int y, int w, int h);
233static void removesystrayicon(Client * i);
234static void resize(Client * c, int x, int y, int w, int h, int interact);
235static void resizebarwin(Monitor * m);
236static void resizeclient(Client * c, int x, int y, int w, int h);
237static void resizemouse(const Arg * arg);
238static void resizerequest(XEvent * e);
239static void restack(Monitor * m);
240static void run(void);
241static void scan(void);
242static int sendevent(Window w, Atom proto, int m, long d0, long d1, long d2,
243 long d3, long d4);
244static void sendmon(Client * c, Monitor * m);
245static void setclientstate(Client * c, long state);
246static void setfocus(Client * c);
247static void setfullscreen(Client * c, int fullscreen);
248static void setgaps(int oh, int ov, int ih, int iv);
249static void incrgaps(const Arg * arg);
250static void incrigaps(const Arg * arg);
251static void incrogaps(const Arg * arg);
252static void incrohgaps(const Arg * arg);
253static void incrovgaps(const Arg * arg);
254static void incrihgaps(const Arg * arg);
255static void incrivgaps(const Arg * arg);
256static void togglegaps(const Arg * arg);
257static void defaultgaps(const Arg * arg);
258static void setlayout(const Arg * arg);
259static void setmfact(const Arg * arg);
260static void setup(void);
261static void seturgent(Client * c, int urg);
262static void showhide(Client * c);
263static void spawn(const Arg * arg);
264static Monitor *systraytomon(Monitor * m);
265static void tag(const Arg * arg);
266static void tagmon(const Arg * arg);
267static void tile(Monitor * m);
268static void togglebar(const Arg * arg);
269static void togglefloating(const Arg * arg);
270static void togglefullscr(const Arg * arg);
271static void toggletag(const Arg * arg);
272static void toggleview(const Arg * arg);
273static void unfocus(Client * c, int setfocus);
274static void unmanage(Client * c, int destroyed);
275static void unmapnotify(XEvent * e);
276static void updatebarpos(Monitor * m);
277static void updatebars(void);
278static void updateclientlist(void);
279static int updategeom(void);
280static void updatenumlockmask(void);
281static void updatesystray(void);
282static void updatesystrayicongeom(Client * i, int w, int h);
283static void updatesystrayiconstate(Client * i, XPropertyEvent * ev);
284static void updatesizehints(Client * c);
285static void updatestatus(void);
286static void updatetitle(Client * c);
287static void updatewindowtype(Client * c);
288static void updatewmhints(Client * c);
289static void view(const Arg * arg);
290static Client *wintoclient(Window w);
291static Monitor *wintomon(Window w);
292static Client *wintosystrayicon(Window w);
293static int xerror(Display * dpy, XErrorEvent * ee);
294static int xerrordummy(Display * dpy, XErrorEvent * ee);
295static int xerrorstart(Display * dpy, XErrorEvent * ee);
296static void zoom(const Arg * arg);
297
298static pid_t getparentprocess(pid_t p);
299static int isdescprocess(pid_t p, pid_t c);
300static Client *swallowingclient(Window w);
301static Client *termforwin(const Client * c);
302static pid_t winpid(Window w);
303
304/* variables */
305static Systray *systray = NULL;
306static const char broken[] = "broken";
307static char stext[256];
308static int screen;
309static int sw, sh; /* X display screen geometry width, height */
310static int bh; /* bar height */
311static int enablegaps = 1; /* enables gaps, used by togglegaps */
312static int lrpad; /* sum of left and right padding for text */
313static int (*xerrorxlib)(Display *, XErrorEvent *);
314static unsigned int numlockmask = 0;
315static void (*handler[LASTEvent])(XEvent *) = {
316 [ButtonPress] = buttonpress,
317 [ClientMessage] = clientmessage,
318 [ConfigureRequest] = configurerequest,
319 [ConfigureNotify] = configurenotify,
320 [DestroyNotify] = destroynotify,
321 [EnterNotify] = enternotify,
322 [Expose] = expose,
323 [FocusIn] = focusin,
324 [KeyPress] = keypress,
325 [MappingNotify] = mappingnotify,
326 [MapRequest] = maprequest,
327 [MotionNotify] = motionnotify,
328 [PropertyNotify] = propertynotify,
329 [ResizeRequest] = resizerequest,
330 [UnmapNotify] = unmapnotify
331};
332
333static Atom wmatom[WMLast], netatom[NetLast], xatom[XLast];
334static int running = 1;
335static Cur *cursor[CurLast];
336static Clr **scheme;
337static Display *dpy;
338static Drw *drw;
339static Monitor *mons, *selmon;
340static Window root, wmcheckwin;
341
342static xcb_connection_t *xcon;
343
344/* configuration, allows nested code to access above variables */
345#include "config.h"
346
347/* compile-time check if all tags fit into an unsigned int bit array. */
348struct NumTags {
349 char limitexceeded[LENGTH(tags) > 31 ? -1 : 1];
350};
351
352/* function implementations */
353void applyrules(Client *c)
354{
355 const char *class, *instance;
356 unsigned int i;
357 const Rule *r;
358 Monitor *m;
359 XClassHint ch = { NULL, NULL };
360
361 /* rule matching */
362 c->isfloating = 0;
363 c->tags = 0;
364 XGetClassHint(dpy, c->win, &ch);
365 class = ch.res_class ? ch.res_class : broken;
366 instance = ch.res_name ? ch.res_name : broken;
367
368 for (i = 0; i < LENGTH(rules); i++) {
369 r = &rules[i];
370 if ((!r->title || strstr(c->name, r->title))
371 && (!r->class || strstr(class, r->class))
372 && (!r->instance || strstr(instance, r->instance))) {
373 c->isterminal = r->isterminal;
374 c->noswallow = r->noswallow;
375 c->isfloating = r->isfloating;
376 c->tags |= r->tags;
377 for (m = mons; m && m->num != r->monitor; m = m->next) ;
378 if (m)
379 c->mon = m;
380 }
381 }
382 if (ch.res_class)
383 XFree(ch.res_class);
384 if (ch.res_name)
385 XFree(ch.res_name);
386 c->tags =
387 c->tags & TAGMASK ? c->tags & TAGMASK : c->mon->tagset[c->mon->
388 seltags];
389}
390
391int applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact)
392{
393 int baseismin;
394 Monitor *m = c->mon;
395
396 /* set minimum possible */
397 *w = MAX(1, *w);
398 *h = MAX(1, *h);
399 if (interact) {
400 if (*x > sw)
401 *x = sw - WIDTH(c);
402 if (*y > sh)
403 *y = sh - HEIGHT(c);
404 if (*x + *w + 2 * c->bw < 0)
405 *x = 0;
406 if (*y + *h + 2 * c->bw < 0)
407 *y = 0;
408 } else {
409 if (*x >= m->wx + m->ww)
410 *x = m->wx + m->ww - WIDTH(c);
411 if (*y >= m->wy + m->wh)
412 *y = m->wy + m->wh - HEIGHT(c);
413 if (*x + *w + 2 * c->bw <= m->wx)
414 *x = m->wx;
415 if (*y + *h + 2 * c->bw <= m->wy)
416 *y = m->wy;
417 }
418 if (*h < bh)
419 *h = bh;
420 if (*w < bh)
421 *w = bh;
422 if (resizehints || c->isfloating || !c->mon->lt[c->mon->sellt]->arrange) {
423 if (!c->hintsvalid)
424 updatesizehints(c);
425 /* see last two sentences in ICCCM 4.1.2.3 */
426 baseismin = c->basew == c->minw && c->baseh == c->minh;
427 if (!baseismin) { /* temporarily remove base dimensions */
428 *w -= c->basew;
429 *h -= c->baseh;
430 }
431 /* adjust for aspect limits */
432 if (c->mina > 0 && c->maxa > 0) {
433 if (c->maxa < (float)*w / *h)
434 *w = *h * c->maxa + 0.5;
435 else if (c->mina < (float)*h / *w)
436 *h = *w * c->mina + 0.5;
437 }
438 if (baseismin) { /* increment calculation requires this */
439 *w -= c->basew;
440 *h -= c->baseh;
441 }
442 /* adjust for increment value */
443 if (c->incw)
444 *w -= *w % c->incw;
445 if (c->inch)
446 *h -= *h % c->inch;
447 /* restore base dimensions */
448 *w = MAX(*w + c->basew, c->minw);
449 *h = MAX(*h + c->baseh, c->minh);
450 if (c->maxw)
451 *w = MIN(*w, c->maxw);
452 if (c->maxh)
453 *h = MIN(*h, c->maxh);
454 }
455 return *x != c->x || *y != c->y || *w != c->w || *h != c->h;
456}
457
458void arrange(Monitor *m)
459{
460 if (m)
461 showhide(m->stack);
462 else
463 for (m = mons; m; m = m->next)
464 showhide(m->stack);
465 if (m) {
466 arrangemon(m);
467 restack(m);
468 } else
469 for (m = mons; m; m = m->next)
470 arrangemon(m);
471}
472
473void arrangemon(Monitor *m)
474{
475 strncpy(m->ltsymbol, m->lt[m->sellt]->symbol, sizeof m->ltsymbol);
476 if (m->lt[m->sellt]->arrange)
477 m->lt[m->sellt]->arrange(m);
478}
479
480void attach(Client *c)
481{
482 c->next = c->mon->clients;
483 c->mon->clients = c;
484}
485
486void attachstack(Client *c)
487{
488 c->snext = c->mon->stack;
489 c->mon->stack = c;
490}
491
492void swallow(Client *p, Client *c)
493{
494
495 if (c->noswallow || c->isterminal)
496 return;
497 if (c->noswallow && !swallowfloating && c->isfloating)
498 return;
499
500 detach(c);
501 detachstack(c);
502
503 setclientstate(c, WithdrawnState);
504 XUnmapWindow(dpy, p->win);
505
506 p->swallowing = c;
507 c->mon = p->mon;
508
509 Window w = p->win;
510 p->win = c->win;
511 c->win = w;
512 updatetitle(p);
513 XMoveResizeWindow(dpy, p->win, p->x, p->y, p->w, p->h);
514 arrange(p->mon);
515 configure(p);
516 updateclientlist();
517}
518
519void unswallow(Client *c)
520{
521 c->win = c->swallowing->win;
522
523 free(c->swallowing);
524 c->swallowing = NULL;
525
526 /* unfullscreen the client */
527 setfullscreen(c, 0);
528 updatetitle(c);
529 arrange(c->mon);
530 XMapWindow(dpy, c->win);
531 XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
532 setclientstate(c, NormalState);
533 focus(NULL);
534 arrange(c->mon);
535}
536
537void buttonpress(XEvent *e)
538{
539 unsigned int i, x, click;
540 Arg arg = { 0 };
541 Client *c;
542 Monitor *m;
543 XButtonPressedEvent *ev = &e->xbutton;
544
545 click = ClkRootWin;
546 /* focus monitor if necessary */
547 if ((m = wintomon(ev->window)) && m != selmon) {
548 unfocus(selmon->sel, 1);
549 selmon = m;
550 focus(NULL);
551 }
552 if (ev->window == selmon->barwin) {
553 i = x = 0;
554 unsigned int occ = 0;
555 for(c = m->clients; c; c=c->next)
556 occ |= c->tags;
557 do {
558 /* Do not reserve space for vacant tags */
559 if (!(occ & 1 << i || m->tagset[m->seltags] & 1 << i))
560 continue;
561 x += TEXTW(tags[i]);
562 } while (ev->x >= x && ++i < LENGTH(tags));
563 if (i < LENGTH(tags)) {
564 click = ClkTagBar;
565 arg.ui = 1 << i;
566 } else if (ev->x < x + TEXTW(selmon->ltsymbol))
567 click = ClkLtSymbol;
568 else if (ev->x >
569 selmon->ww - (int)TEXTW(stext) - getsystraywidth())
570 click = ClkStatusText;
571 else
572 click = ClkWinTitle;
573 } else if ((c = wintoclient(ev->window))) {
574 focus(c);
575 restack(selmon);
576 XAllowEvents(dpy, ReplayPointer, CurrentTime);
577 click = ClkClientWin;
578 }
579 for (i = 0; i < LENGTH(buttons); i++)
580 if (click == buttons[i].click && buttons[i].func
581 && buttons[i].button == ev->button
582 && CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
583 buttons[i].func(click == ClkTagBar
584 && buttons[i].arg.i ==
585 0 ? &arg : &buttons[i].arg);
586}
587
588void checkotherwm(void)
589{
590 xerrorxlib = XSetErrorHandler(xerrorstart);
591 /* this causes an error if some other window manager is running */
592 XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask);
593 XSync(dpy, False);
594 XSetErrorHandler(xerror);
595 XSync(dpy, False);
596}
597
598void cleanup(void)
599{
600 Arg a = {.ui = ~0 };
601 Layout foo = { "", NULL };
602 Monitor *m;
603 size_t i;
604
605 view(&a);
606 selmon->lt[selmon->sellt] = &foo;
607 for (m = mons; m; m = m->next)
608 while (m->stack)
609 unmanage(m->stack, 0);
610 XUngrabKey(dpy, AnyKey, AnyModifier, root);
611 while (mons)
612 cleanupmon(mons);
613
614 if (showsystray) {
615 XUnmapWindow(dpy, systray->win);
616 XDestroyWindow(dpy, systray->win);
617 free(systray);
618 }
619
620 for (i = 0; i < CurLast; i++)
621 drw_cur_free(drw, cursor[i]);
622 for (i = 0; i < LENGTH(colors); i++)
623 free(scheme[i]);
624 free(scheme);
625 XDestroyWindow(dpy, wmcheckwin);
626 drw_free(drw);
627 XSync(dpy, False);
628 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
629 XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
630}
631
632void cleanupmon(Monitor *mon)
633{
634 Monitor *m;
635
636 if (mon == mons)
637 mons = mons->next;
638 else {
639 for (m = mons; m && m->next != mon; m = m->next) ;
640 m->next = mon->next;
641 }
642 XUnmapWindow(dpy, mon->barwin);
643 XDestroyWindow(dpy, mon->barwin);
644 free(mon);
645}
646
647void clientmessage(XEvent *e)
648{
649 XWindowAttributes wa;
650 XSetWindowAttributes swa;
651 XClientMessageEvent *cme = &e->xclient;
652 Client *c = wintoclient(cme->window);
653
654 if (showsystray && cme->window == systray->win
655 && cme->message_type == netatom[NetSystemTrayOP]) {
656 /* add systray icons */
657 if (cme->data.l[1] == SYSTEM_TRAY_REQUEST_DOCK) {
658 if (!(c = (Client *) calloc(1, sizeof(Client))))
659 die("fatal: could not malloc() %u bytes\n",
660 sizeof(Client));
661 if (!(c->win = cme->data.l[2])) {
662 free(c);
663 return;
664 }
665 c->mon = selmon;
666 c->next = systray->icons;
667 systray->icons = c;
668 if (!XGetWindowAttributes(dpy, c->win, &wa)) {
669 /* use sane defaults */
670 wa.width = bh;
671 wa.height = bh;
672 wa.border_width = 0;
673 }
674 c->x = c->oldx = c->y = c->oldy = 0;
675 c->w = c->oldw = wa.width;
676 c->h = c->oldh = wa.height;
677 c->oldbw = wa.border_width;
678 c->bw = 0;
679 c->isfloating = True;
680 /* reuse tags field as mapped status */
681 c->tags = 1;
682 updatesizehints(c);
683 updatesystrayicongeom(c, wa.width, wa.height);
684 XAddToSaveSet(dpy, c->win);
685 XSelectInput(dpy, c->win,
686 StructureNotifyMask | PropertyChangeMask |
687 ResizeRedirectMask);
688 XReparentWindow(dpy, c->win, systray->win, 0, 0);
689 /* use parents background color */
690 swa.background_pixel = scheme[SchemeNorm][ColBg].pixel;
691 XChangeWindowAttributes(dpy, c->win, CWBackPixel, &swa);
692 sendevent(c->win, netatom[Xembed], StructureNotifyMask,
693 CurrentTime, XEMBED_EMBEDDED_NOTIFY, 0,
694 systray->win, XEMBED_EMBEDDED_VERSION);
695 /* FIXME not sure if I have to send these events, too */
696 sendevent(c->win, netatom[Xembed], StructureNotifyMask,
697 CurrentTime, XEMBED_FOCUS_IN, 0, systray->win,
698 XEMBED_EMBEDDED_VERSION);
699 sendevent(c->win, netatom[Xembed], StructureNotifyMask,
700 CurrentTime, XEMBED_WINDOW_ACTIVATE, 0,
701 systray->win, XEMBED_EMBEDDED_VERSION);
702 sendevent(c->win, netatom[Xembed], StructureNotifyMask,
703 CurrentTime, XEMBED_MODALITY_ON, 0,
704 systray->win, XEMBED_EMBEDDED_VERSION);
705 XSync(dpy, False);
706 resizebarwin(selmon);
707 updatesystray();
708 setclientstate(c, NormalState);
709 }
710 return;
711 }
712
713 if (!c)
714 return;
715 if (cme->message_type == netatom[NetWMState]) {
716 if (cme->data.l[1] == netatom[NetWMFullscreen]
717 || cme->data.l[2] == netatom[NetWMFullscreen])
718 setfullscreen(c, (cme->data.l[0] == 1 /* _NET_WM_STATE_ADD */
719 || (cme->data.l[0] ==
720 2 /* _NET_WM_STATE_TOGGLE */
721 && !c->isfullscreen)));
722 } else if (cme->message_type == netatom[NetActiveWindow]) {
723 if (c != selmon->sel && !c->isurgent)
724 seturgent(c, 1);
725 }
726}
727
728void configure(Client *c)
729{
730 XConfigureEvent ce;
731
732 ce.type = ConfigureNotify;
733 ce.display = dpy;
734 ce.event = c->win;
735 ce.window = c->win;
736 ce.x = c->x;
737 ce.y = c->y;
738 ce.width = c->w;
739 ce.height = c->h;
740 ce.border_width = c->bw;
741 ce.above = None;
742 ce.override_redirect = False;
743 XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *) & ce);
744}
745
746void configurenotify(XEvent *e)
747{
748 Monitor *m;
749 Client *c;
750 XConfigureEvent *ev = &e->xconfigure;
751 int dirty;
752
753 /* TODO: updategeom handling sucks, needs to be simplified */
754 if (ev->window == root) {
755 dirty = (sw != ev->width || sh != ev->height);
756 sw = ev->width;
757 sh = ev->height;
758 if (updategeom() || dirty) {
759 drw_resize(drw, sw, bh);
760 updatebars();
761 for (m = mons; m; m = m->next) {
762 for (c = m->clients; c; c = c->next)
763 if (c->isfullscreen)
764 resizeclient(c, m->mx, m->my,
765 m->mw, m->mh);
766 resizebarwin(m);
767 }
768 focus(NULL);
769 arrange(NULL);
770 }
771 }
772}
773
774void configurerequest(XEvent *e)
775{
776 Client *c;
777 Monitor *m;
778 XConfigureRequestEvent *ev = &e->xconfigurerequest;
779 XWindowChanges wc;
780
781 if ((c = wintoclient(ev->window))) {
782 if (ev->value_mask & CWBorderWidth)
783 c->bw = ev->border_width;
784 else if (c->isfloating || !selmon->lt[selmon->sellt]->arrange) {
785 m = c->mon;
786 if (ev->value_mask & CWX) {
787 c->oldx = c->x;
788 c->x = m->mx + ev->x;
789 }
790 if (ev->value_mask & CWY) {
791 c->oldy = c->y;
792 c->y = m->my + ev->y;
793 }
794 if (ev->value_mask & CWWidth) {
795 c->oldw = c->w;
796 c->w = ev->width;
797 }
798 if (ev->value_mask & CWHeight) {
799 c->oldh = c->h;
800 c->h = ev->height;
801 }
802 if ((c->x + c->w) > m->mx + m->mw && c->isfloating)
803 c->x = m->mx + (m->mw / 2 - WIDTH(c) / 2); /* center in x direction */
804 if ((c->y + c->h) > m->my + m->mh && c->isfloating)
805 c->y = m->my + (m->mh / 2 - HEIGHT(c) / 2); /* center in y direction */
806 if ((ev->value_mask & (CWX | CWY))
807 && !(ev->value_mask & (CWWidth | CWHeight)))
808 configure(c);
809 if (ISVISIBLE(c))
810 XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w,
811 c->h);
812 } else
813 configure(c);
814 } else {
815 wc.x = ev->x;
816 wc.y = ev->y;
817 wc.width = ev->width;
818 wc.height = ev->height;
819 wc.border_width = ev->border_width;
820 wc.sibling = ev->above;
821 wc.stack_mode = ev->detail;
822 XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
823 }
824 XSync(dpy, False);
825}
826
827Monitor *createmon(void)
828{
829 Monitor *m;
830
831 m = ecalloc(1, sizeof(Monitor));
832 m->tagset[0] = m->tagset[1] = 1;
833 m->mfact = mfact;
834 m->nmaster = nmaster;
835 m->showbar = showbar;
836 m->topbar = topbar;
837 m->gappih = gappih;
838 m->gappiv = gappiv;
839 m->gappoh = gappoh;
840 m->gappov = gappov;
841 m->lt[0] = &layouts[0];
842 m->lt[1] = &layouts[1 % LENGTH(layouts)];
843 strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol);
844 return m;
845}
846
847void destroynotify(XEvent *e)
848{
849 Client *c;
850 XDestroyWindowEvent *ev = &e->xdestroywindow;
851
852 if ((c = wintoclient(ev->window)))
853 unmanage(c, 1);
854 else if ((c = wintosystrayicon(ev->window))) {
855 removesystrayicon(c);
856 resizebarwin(selmon);
857 updatesystray();
858 } else if ((c = swallowingclient(ev->window)))
859 unmanage(c->swallowing, 1);
860}
861
862void detach(Client *c)
863{
864 Client **tc;
865
866 for (tc = &c->mon->clients; *tc && *tc != c; tc = &(*tc)->next) ;
867 *tc = c->next;
868}
869
870void detachstack(Client *c)
871{
872 Client **tc, *t;
873
874 for (tc = &c->mon->stack; *tc && *tc != c; tc = &(*tc)->snext) ;
875 *tc = c->snext;
876
877 if (c == c->mon->sel) {
878 for (t = c->mon->stack; t && !ISVISIBLE(t); t = t->snext) ;
879 c->mon->sel = t;
880 }
881}
882
883Monitor *dirtomon(int dir)
884{
885 Monitor *m = NULL;
886
887 if (dir > 0) {
888 if (!(m = selmon->next))
889 m = mons;
890 } else if (selmon == mons)
891 for (m = mons; m->next; m = m->next) ;
892 else
893 for (m = mons; m->next != selmon; m = m->next) ;
894 return m;
895}
896
897void drawbar(Monitor *m)
898{
899 int x, w, tw = 0, stw = 0;
900 int boxs = drw->fonts->h / 9;
901 int boxw = drw->fonts->h / 6 + 2;
902 unsigned int i, occ = 0, urg = 0;
903 Client *c;
904
905 if (!m->showbar)
906 return;
907
908 if (showsystray && m == systraytomon(m) && !systrayonleft)
909 stw = getsystraywidth();
910
911 /* draw status first so it can be overdrawn by tags later */
912 if (m == selmon) { /* status is only drawn on selected monitor */
913 drw_setscheme(drw, scheme[SchemeNorm]);
914 tw = TEXTW(stext) - lrpad / 2 + 2; /* 2px extra right padding */
915 drw_text(drw, m->ww - tw - stw, 0, tw, bh, lrpad / 2 - 2, stext,
916 0);
917 }
918
919 resizebarwin(m);
920 for (c = m->clients; c; c = c->next) {
921 occ |= c->tags;
922 if (c->isurgent)
923 urg |= c->tags;
924 }
925 x = 0;
926 for (i = 0; i < LENGTH(tags); i++) {
927 /* Do not draw vacant tags */
928 if(!(occ & 1 << i || m->tagset[m->seltags] & 1 << i))
929 continue;
930 w = TEXTW(tags[i]);
931 drw_setscheme(drw,
932 scheme[m->
933 tagset[m->
934 seltags] & 1 << i ? SchemeSel :
935 SchemeNorm]);
936 drw_text(drw, x, 0, w, bh, lrpad / 2, tags[i], urg & 1 << i);
937 if (occ & 1 << i)
938 drw_rect(drw, x + boxs, boxs, boxw, boxw,
939 m == selmon && selmon->sel
940 && selmon->sel->tags & 1 << i, urg & 1 << i);
941 x += w;
942 }
943 w = TEXTW(m->ltsymbol);
944 drw_setscheme(drw, scheme[SchemeNorm]);
945 x = drw_text(drw, x, 0, w, bh, lrpad / 2, m->ltsymbol, 0);
946
947 if ((w = m->ww - tw - stw - x) > bh) {
948 if (m->sel) {
949 drw_setscheme(drw,
950 scheme[m ==
951 selmon ? SchemeSel : SchemeNorm]);
952 drw_text(drw, x, 0, w, bh, lrpad / 2, m->sel->name, 0);
953 if (m->sel->isfloating)
954 drw_rect(drw, x + boxs, boxs, boxw, boxw,
955 m->sel->isfixed, 0);
956 } else {
957 drw_setscheme(drw, scheme[SchemeNorm]);
958 drw_rect(drw, x, 0, w, bh, 1, 1);
959 }
960 }
961 drw_map(drw, m->barwin, 0, 0, m->ww - stw, bh);
962}
963
964void drawbars(void)
965{
966 Monitor *m;
967
968 for (m = mons; m; m = m->next)
969 drawbar(m);
970}
971
972void enternotify(XEvent *e)
973{
974 Client *c;
975 Monitor *m;
976 XCrossingEvent *ev = &e->xcrossing;
977
978 if ((ev->mode != NotifyNormal || ev->detail == NotifyInferior)
979 && ev->window != root)
980 return;
981 c = wintoclient(ev->window);
982 m = c ? c->mon : wintomon(ev->window);
983 if (m != selmon) {
984 unfocus(selmon->sel, 1);
985 selmon = m;
986 } else if (!c || c == selmon->sel)
987 return;
988 focus(c);
989}
990
991void expose(XEvent *e)
992{
993 Monitor *m;
994 XExposeEvent *ev = &e->xexpose;
995
996 if (ev->count == 0 && (m = wintomon(ev->window))) {
997 drawbar(m);
998 if (m == selmon)
999 updatesystray();
1000 }
1001}
1002
1003void focus(Client *c)
1004{
1005 if (!c || !ISVISIBLE(c))
1006 for (c = selmon->stack; c && !ISVISIBLE(c); c = c->snext) ;
1007 if (selmon->sel && selmon->sel != c)
1008 unfocus(selmon->sel, 0);
1009 if (c) {
1010 if (c->mon != selmon)
1011 selmon = c->mon;
1012 if (c->isurgent)
1013 seturgent(c, 0);
1014 detachstack(c);
1015 attachstack(c);
1016 grabbuttons(c, 1);
1017 XSetWindowBorder(dpy, c->win,
1018 scheme[SchemeSel][ColBorder].pixel);
1019 setfocus(c);
1020 } else {
1021 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
1022 XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
1023 }
1024 selmon->sel = c;
1025 drawbars();
1026}
1027
1028/* there are some broken focus acquiring clients needing extra handling */
1029void focusin(XEvent *e)
1030{
1031 XFocusChangeEvent *ev = &e->xfocus;
1032
1033 if (selmon->sel && ev->window != selmon->sel->win)
1034 setfocus(selmon->sel);
1035}
1036
1037void focusmon(const Arg *arg)
1038{
1039 Monitor *m;
1040
1041 if (!mons->next)
1042 return;
1043 if ((m = dirtomon(arg->i)) == selmon)
1044 return;
1045 unfocus(selmon->sel, 0);
1046 selmon = m;
1047 focus(NULL);
1048}
1049
1050void focusstack(const Arg *arg)
1051{
1052 Client *c = NULL, *i;
1053
1054 if (!selmon->sel || (selmon->sel->isfullscreen && lockfullscreen))
1055 return;
1056 if (arg->i > 0) {
1057 for (c = selmon->sel->next; c && !ISVISIBLE(c); c = c->next) ;
1058 if (!c)
1059 for (c = selmon->clients; c && !ISVISIBLE(c);
1060 c = c->next) ;
1061 } else {
1062 for (i = selmon->clients; i != selmon->sel; i = i->next)
1063 if (ISVISIBLE(i))
1064 c = i;
1065 if (!c)
1066 for (; i; i = i->next)
1067 if (ISVISIBLE(i))
1068 c = i;
1069 }
1070 if (c) {
1071 focus(c);
1072 restack(selmon);
1073 }
1074}
1075
1076Atom getatomprop(Client *c, Atom prop)
1077{
1078 int di;
1079 unsigned long dl;
1080 unsigned char *p = NULL;
1081 Atom da, atom = None;
1082
1083 /* FIXME getatomprop should return the number of items and a pointer to
1084 * the stored data instead of this workaround */
1085 Atom req = XA_ATOM;
1086 if (prop == xatom[XembedInfo])
1087 req = xatom[XembedInfo];
1088
1089 if (XGetWindowProperty(dpy, c->win, prop, 0L, sizeof atom, False, req,
1090 &da, &di, &dl, &dl, &p) == Success && p) {
1091 atom = *(Atom *) p;
1092 if (da == xatom[XembedInfo] && dl == 2)
1093 atom = ((Atom *) p)[1];
1094 XFree(p);
1095 }
1096 return atom;
1097}
1098
1099unsigned int getsystraywidth()
1100{
1101 unsigned int w = 0;
1102 Client *i;
1103 if (showsystray)
1104 for (i = systray->icons; i;
1105 w += i->w + systrayspacing, i = i->next) ;
1106 return w ? w + systrayspacing : 1;
1107}
1108
1109int getrootptr(int *x, int *y)
1110{
1111 int di;
1112 unsigned int dui;
1113 Window dummy;
1114
1115 return XQueryPointer(dpy, root, &dummy, &dummy, x, y, &di, &di, &dui);
1116}
1117
1118long getstate(Window w)
1119{
1120 int format;
1121 long result = -1;
1122 unsigned char *p = NULL;
1123 unsigned long n, extra;
1124 Atom real;
1125
1126 if (XGetWindowProperty
1127 (dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState], &real,
1128 &format, &n, &extra, (unsigned char **)&p) != Success)
1129 return -1;
1130 if (n != 0)
1131 result = *p;
1132 XFree(p);
1133 return result;
1134}
1135
1136int gettextprop(Window w, Atom atom, char *text, unsigned int size)
1137{
1138 char **list = NULL;
1139 int n;
1140 XTextProperty name;
1141
1142 if (!text || size == 0)
1143 return 0;
1144 text[0] = '\0';
1145 if (!XGetTextProperty(dpy, w, &name, atom) || !name.nitems)
1146 return 0;
1147 if (name.encoding == XA_STRING) {
1148 strncpy(text, (char *)name.value, size - 1);
1149 } else if (XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success
1150 && n > 0 && *list) {
1151 strncpy(text, *list, size - 1);
1152 XFreeStringList(list);
1153 }
1154 text[size - 1] = '\0';
1155 XFree(name.value);
1156 return 1;
1157}
1158
1159void grabbuttons(Client *c, int focused)
1160{
1161 updatenumlockmask();
1162 {
1163 unsigned int i, j;
1164 unsigned int modifiers[] =
1165 { 0, LockMask, numlockmask, numlockmask | LockMask };
1166 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
1167 if (!focused)
1168 XGrabButton(dpy, AnyButton, AnyModifier, c->win, False,
1169 BUTTONMASK, GrabModeSync, GrabModeSync,
1170 None, None);
1171 for (i = 0; i < LENGTH(buttons); i++)
1172 if (buttons[i].click == ClkClientWin)
1173 for (j = 0; j < LENGTH(modifiers); j++)
1174 XGrabButton(dpy, buttons[i].button,
1175 buttons[i].
1176 mask | modifiers[j], c->win,
1177 False, BUTTONMASK,
1178 GrabModeAsync, GrabModeSync,
1179 None, None);
1180 }
1181}
1182
1183void grabkeys(void)
1184{
1185 updatenumlockmask();
1186 {
1187 unsigned int i, j, k;
1188 unsigned int modifiers[] =
1189 { 0, LockMask, numlockmask, numlockmask | LockMask };
1190 int start, end, skip;
1191 KeySym *syms;
1192
1193 XUngrabKey(dpy, AnyKey, AnyModifier, root);
1194 XDisplayKeycodes(dpy, &start, &end);
1195 syms = XGetKeyboardMapping(dpy, start, end - start + 1, &skip);
1196 if (!syms)
1197 return;
1198 for (k = start; k <= end; k++)
1199 for (i = 0; i < LENGTH(keys); i++)
1200 /* skip modifier codes, we do that ourselves */
1201 if (keys[i].keysym == syms[(k - start) * skip])
1202 for (j = 0; j < LENGTH(modifiers); j++)
1203 XGrabKey(dpy, k,
1204 keys[i].
1205 mod | modifiers[j],
1206 root, True,
1207 GrabModeAsync,
1208 GrabModeAsync);
1209 XFree(syms);
1210 }
1211}
1212
1213void incnmaster(const Arg *arg)
1214{
1215 selmon->nmaster = MAX(selmon->nmaster + arg->i, 0);
1216 arrange(selmon);
1217}
1218
1219#ifdef XINERAMA
1220static int
1221isuniquegeom(XineramaScreenInfo *unique, size_t n, XineramaScreenInfo *info)
1222{
1223 while (n--)
1224 if (unique[n].x_org == info->x_org
1225 && unique[n].y_org == info->y_org
1226 && unique[n].width == info->width
1227 && unique[n].height == info->height)
1228 return 0;
1229 return 1;
1230}
1231#endif /* XINERAMA */
1232
1233void keypress(XEvent *e)
1234{
1235 unsigned int i;
1236 KeySym keysym;
1237 XKeyEvent *ev;
1238
1239 ev = &e->xkey;
1240 keysym = XKeycodeToKeysym(dpy, (KeyCode) ev->keycode, 0);
1241 for (i = 0; i < LENGTH(keys); i++)
1242 if (keysym == keys[i].keysym
1243 && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
1244 && keys[i].func)
1245 keys[i].func(&(keys[i].arg));
1246}
1247
1248void killclient(const Arg *arg)
1249{
1250 if (!selmon->sel)
1251 return;
1252
1253 if (!sendevent
1254 (selmon->sel->win, wmatom[WMDelete], NoEventMask, wmatom[WMDelete],
1255 CurrentTime, 0, 0, 0)) {
1256 XGrabServer(dpy);
1257 XSetErrorHandler(xerrordummy);
1258 XSetCloseDownMode(dpy, DestroyAll);
1259 XKillClient(dpy, selmon->sel->win);
1260 XSync(dpy, False);
1261 XSetErrorHandler(xerror);
1262 XUngrabServer(dpy);
1263 }
1264}
1265
1266void manage(Window w, XWindowAttributes *wa)
1267{
1268 Client *c, *t = NULL, *term = NULL;
1269 Window trans = None;
1270 XWindowChanges wc;
1271
1272 c = ecalloc(1, sizeof(Client));
1273 c->win = w;
1274 c->pid = winpid(w);
1275 /* geometry */
1276 c->x = c->oldx = wa->x;
1277 c->y = c->oldy = wa->y;
1278 c->w = c->oldw = wa->width;
1279 c->h = c->oldh = wa->height;
1280 c->oldbw = wa->border_width;
1281
1282 updatetitle(c);
1283 if (XGetTransientForHint(dpy, w, &trans) && (t = wintoclient(trans))) {
1284 c->mon = t->mon;
1285 c->tags = t->tags;
1286 } else {
1287 c->mon = selmon;
1288 applyrules(c);
1289 term = termforwin(c);
1290 }
1291
1292 if (c->x + WIDTH(c) > c->mon->wx + c->mon->ww)
1293 c->x = c->mon->wx + c->mon->ww - WIDTH(c);
1294 if (c->y + HEIGHT(c) > c->mon->wy + c->mon->wh)
1295 c->y = c->mon->wy + c->mon->wh - HEIGHT(c);
1296 c->x = MAX(c->x, c->mon->wx);
1297 c->y = MAX(c->y, c->mon->wy);
1298 c->bw = borderpx;
1299
1300 wc.border_width = c->bw;
1301 XConfigureWindow(dpy, w, CWBorderWidth, &wc);
1302 XSetWindowBorder(dpy, w, scheme[SchemeNorm][ColBorder].pixel);
1303 configure(c); /* propagates border_width, if size doesn't change */
1304 updatewindowtype(c);
1305 updatesizehints(c);
1306 updatewmhints(c);
1307 XSelectInput(dpy, w,
1308 EnterWindowMask | FocusChangeMask | PropertyChangeMask |
1309 StructureNotifyMask);
1310 grabbuttons(c, 0);
1311 if (!c->isfloating)
1312 c->isfloating = c->oldstate = trans != None || c->isfixed;
1313 if (c->isfloating)
1314 XRaiseWindow(dpy, c->win);
1315 attach(c);
1316 attachstack(c);
1317 XChangeProperty(dpy, root, netatom[NetClientList], XA_WINDOW, 32,
1318 PropModeAppend, (unsigned char *)&(c->win), 1);
1319 XMoveResizeWindow(dpy, c->win, c->x + 2 * sw, c->y, c->w, c->h); /* some windows require this */
1320 setclientstate(c, NormalState);
1321 if (c->mon == selmon)
1322 unfocus(selmon->sel, 0);
1323 c->mon->sel = c;
1324 arrange(c->mon);
1325 XMapWindow(dpy, c->win);
1326 if (term)
1327 swallow(term, c);
1328 focus(NULL);
1329}
1330
1331void mappingnotify(XEvent *e)
1332{
1333 XMappingEvent *ev = &e->xmapping;
1334
1335 XRefreshKeyboardMapping(ev);
1336 if (ev->request == MappingKeyboard)
1337 grabkeys();
1338}
1339
1340void maprequest(XEvent *e)
1341{
1342 static XWindowAttributes wa;
1343 XMapRequestEvent *ev = &e->xmaprequest;
1344
1345 Client *i;
1346 if ((i = wintosystrayicon(ev->window))) {
1347 sendevent(i->win, netatom[Xembed], StructureNotifyMask,
1348 CurrentTime, XEMBED_WINDOW_ACTIVATE, 0, systray->win,
1349 XEMBED_EMBEDDED_VERSION);
1350 resizebarwin(selmon);
1351 updatesystray();
1352 }
1353
1354 if (!XGetWindowAttributes(dpy, ev->window, &wa) || wa.override_redirect)
1355 return;
1356 if (!wintoclient(ev->window))
1357 manage(ev->window, &wa);
1358}
1359
1360void monocle(Monitor *m)
1361{
1362 unsigned int n = 0;
1363 Client *c;
1364
1365 for (c = m->clients; c; c = c->next)
1366 if (ISVISIBLE(c))
1367 n++;
1368 if (n > 0) /* override layout symbol */
1369 snprintf(m->ltsymbol, sizeof m->ltsymbol, "[%d]", n);
1370 for (c = nexttiled(m->clients); c; c = nexttiled(c->next))
1371 resize(c, m->wx, m->wy, m->ww - 2 * c->bw, m->wh - 2 * c->bw,
1372 0);
1373}
1374
1375void motionnotify(XEvent *e)
1376{
1377 static Monitor *mon = NULL;
1378 Monitor *m;
1379 XMotionEvent *ev = &e->xmotion;
1380
1381 if (ev->window != root)
1382 return;
1383 if ((m = recttomon(ev->x_root, ev->y_root, 1, 1)) != mon && mon) {
1384 unfocus(selmon->sel, 1);
1385 selmon = m;
1386 focus(NULL);
1387 }
1388 mon = m;
1389}
1390
1391void movemouse(const Arg *arg)
1392{
1393 int x, y, ocx, ocy, nx, ny;
1394 Client *c;
1395 Monitor *m;
1396 XEvent ev;
1397 Time lasttime = 0;
1398
1399 if (!(c = selmon->sel))
1400 return;
1401 if (c->isfullscreen) /* no support moving fullscreen windows by mouse */
1402 return;
1403 restack(selmon);
1404 ocx = c->x;
1405 ocy = c->y;
1406 if (XGrabPointer
1407 (dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync, None,
1408 cursor[CurMove]->cursor, CurrentTime) != GrabSuccess)
1409 return;
1410 if (!getrootptr(&x, &y))
1411 return;
1412 do {
1413 XMaskEvent(dpy,
1414 MOUSEMASK | ExposureMask | SubstructureRedirectMask,
1415 &ev);
1416 switch (ev.type) {
1417 case ConfigureRequest:
1418 case Expose:
1419 case MapRequest:
1420 handler[ev.type] (&ev);
1421 break;
1422 case MotionNotify:
1423 if ((ev.xmotion.time - lasttime) <= (1000 / 60))
1424 continue;
1425 lasttime = ev.xmotion.time;
1426
1427 nx = ocx + (ev.xmotion.x - x);
1428 ny = ocy + (ev.xmotion.y - y);
1429 if (abs(selmon->wx - nx) < snap)
1430 nx = selmon->wx;
1431 else if (abs
1432 ((selmon->wx + selmon->ww) - (nx + WIDTH(c))) <
1433 snap)
1434 nx = selmon->wx + selmon->ww - WIDTH(c);
1435 if (abs(selmon->wy - ny) < snap)
1436 ny = selmon->wy;
1437 else if (abs
1438 ((selmon->wy + selmon->wh) -
1439 (ny + HEIGHT(c))) < snap)
1440 ny = selmon->wy + selmon->wh - HEIGHT(c);
1441 if (!c->isfloating && selmon->lt[selmon->sellt]->arrange
1442 && (abs(nx - c->x) > snap || abs(ny - c->y) > snap))
1443 togglefloating(NULL);
1444 if (!selmon->lt[selmon->sellt]->arrange
1445 || c->isfloating)
1446 resize(c, nx, ny, c->w, c->h, 1);
1447 break;
1448 }
1449 } while (ev.type != ButtonRelease);
1450 XUngrabPointer(dpy, CurrentTime);
1451 if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) {
1452 sendmon(c, m);
1453 selmon = m;
1454 focus(NULL);
1455 }
1456}
1457
1458Client *nexttiled(Client *c)
1459{
1460 for (; c && (c->isfloating || !ISVISIBLE(c)); c = c->next) ;
1461 return c;
1462}
1463
1464void pop(Client *c)
1465{
1466 detach(c);
1467 attach(c);
1468 focus(c);
1469 arrange(c->mon);
1470}
1471
1472void propertynotify(XEvent *e)
1473{
1474 Client *c;
1475 Window trans;
1476 XPropertyEvent *ev = &e->xproperty;
1477
1478 if ((c = wintosystrayicon(ev->window))) {
1479 if (ev->atom == XA_WM_NORMAL_HINTS) {
1480 updatesizehints(c);
1481 updatesystrayicongeom(c, c->w, c->h);
1482 } else
1483 updatesystrayiconstate(c, ev);
1484 resizebarwin(selmon);
1485 updatesystray();
1486 }
1487
1488 if ((ev->window == root) && (ev->atom == XA_WM_NAME))
1489 updatestatus();
1490 else if (ev->state == PropertyDelete)
1491 return; /* ignore */
1492 else if ((c = wintoclient(ev->window))) {
1493 switch (ev->atom) {
1494 default:
1495 break;
1496 case XA_WM_TRANSIENT_FOR:
1497 if (!c->isfloating
1498 && (XGetTransientForHint(dpy, c->win, &trans))
1499 && (c->isfloating = (wintoclient(trans)) != NULL))
1500 arrange(c->mon);
1501 break;
1502 case XA_WM_NORMAL_HINTS:
1503 c->hintsvalid = 0;
1504 break;
1505 case XA_WM_HINTS:
1506 updatewmhints(c);
1507 drawbars();
1508 break;
1509 }
1510 if (ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
1511 updatetitle(c);
1512 if (c == c->mon->sel)
1513 drawbar(c->mon);
1514 }
1515 if (ev->atom == netatom[NetWMWindowType])
1516 updatewindowtype(c);
1517 }
1518}
1519
1520void quit(const Arg *arg)
1521{
1522 running = 0;
1523}
1524
1525Monitor *recttomon(int x, int y, int w, int h)
1526{
1527 Monitor *m, *r = selmon;
1528 int a, area = 0;
1529
1530 for (m = mons; m; m = m->next)
1531 if ((a = INTERSECT(x, y, w, h, m)) > area) {
1532 area = a;
1533 r = m;
1534 }
1535 return r;
1536}
1537
1538void removesystrayicon(Client *i)
1539{
1540 Client **ii;
1541
1542 if (!showsystray || !i)
1543 return;
1544 for (ii = &systray->icons; *ii && *ii != i; ii = &(*ii)->next) ;
1545 if (ii)
1546 *ii = i->next;
1547 free(i);
1548}
1549
1550void resize(Client *c, int x, int y, int w, int h, int interact)
1551{
1552 if (applysizehints(c, &x, &y, &w, &h, interact))
1553 resizeclient(c, x, y, w, h);
1554}
1555
1556void resizebarwin(Monitor *m)
1557{
1558 unsigned int w = m->ww;
1559 if (showsystray && m == systraytomon(m) && !systrayonleft)
1560 w -= getsystraywidth();
1561 XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, w, bh);
1562}
1563
1564void resizeclient(Client *c, int x, int y, int w, int h)
1565{
1566 XWindowChanges wc;
1567
1568 c->oldx = c->x;
1569 c->x = wc.x = x;
1570 c->oldy = c->y;
1571 c->y = wc.y = y;
1572 c->oldw = c->w;
1573 c->w = wc.width = w;
1574 c->oldh = c->h;
1575 c->h = wc.height = h;
1576 wc.border_width = c->bw;
1577 XConfigureWindow(dpy, c->win,
1578 CWX | CWY | CWWidth | CWHeight | CWBorderWidth, &wc);
1579 configure(c);
1580 XSync(dpy, False);
1581}
1582
1583void resizerequest(XEvent *e)
1584{
1585 XResizeRequestEvent *ev = &e->xresizerequest;
1586 Client *i;
1587
1588 if ((i = wintosystrayicon(ev->window))) {
1589 updatesystrayicongeom(i, ev->width, ev->height);
1590 resizebarwin(selmon);
1591 updatesystray();
1592 }
1593}
1594
1595void resizemouse(const Arg *arg)
1596{
1597 int ocx, ocy, nw, nh;
1598 Client *c;
1599 Monitor *m;
1600 XEvent ev;
1601 Time lasttime = 0;
1602
1603 if (!(c = selmon->sel))
1604 return;
1605 if (c->isfullscreen) /* no support resizing fullscreen windows by mouse */
1606 return;
1607 restack(selmon);
1608 ocx = c->x;
1609 ocy = c->y;
1610 if (XGrabPointer
1611 (dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync, None,
1612 cursor[CurResize]->cursor, CurrentTime) != GrabSuccess)
1613 return;
1614 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1,
1615 c->h + c->bw - 1);
1616 do {
1617 XMaskEvent(dpy,
1618 MOUSEMASK | ExposureMask | SubstructureRedirectMask,
1619 &ev);
1620 switch (ev.type) {
1621 case ConfigureRequest:
1622 case Expose:
1623 case MapRequest:
1624 handler[ev.type] (&ev);
1625 break;
1626 case MotionNotify:
1627 if ((ev.xmotion.time - lasttime) <= (1000 / 60))
1628 continue;
1629 lasttime = ev.xmotion.time;
1630
1631 nw = MAX(ev.xmotion.x - ocx - 2 * c->bw + 1, 1);
1632 nh = MAX(ev.xmotion.y - ocy - 2 * c->bw + 1, 1);
1633 if (c->mon->wx + nw >= selmon->wx
1634 && c->mon->wx + nw <= selmon->wx + selmon->ww
1635 && c->mon->wy + nh >= selmon->wy
1636 && c->mon->wy + nh <= selmon->wy + selmon->wh) {
1637 if (!c->isfloating
1638 && selmon->lt[selmon->sellt]->arrange
1639 && (abs(nw - c->w) > snap
1640 || abs(nh - c->h) > snap))
1641 togglefloating(NULL);
1642 }
1643 if (!selmon->lt[selmon->sellt]->arrange
1644 || c->isfloating)
1645 resize(c, c->x, c->y, nw, nh, 1);
1646 break;
1647 }
1648 } while (ev.type != ButtonRelease);
1649 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1,
1650 c->h + c->bw - 1);
1651 XUngrabPointer(dpy, CurrentTime);
1652 while (XCheckMaskEvent(dpy, EnterWindowMask, &ev)) ;
1653 if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) {
1654 sendmon(c, m);
1655 selmon = m;
1656 focus(NULL);
1657 }
1658}
1659
1660void restack(Monitor *m)
1661{
1662 Client *c;
1663 XEvent ev;
1664 XWindowChanges wc;
1665
1666 drawbar(m);
1667 if (!m->sel)
1668 return;
1669 if (m->sel->isfloating || !m->lt[m->sellt]->arrange)
1670 XRaiseWindow(dpy, m->sel->win);
1671 if (m->lt[m->sellt]->arrange) {
1672 wc.stack_mode = Below;
1673 wc.sibling = m->barwin;
1674 for (c = m->stack; c; c = c->snext)
1675 if (!c->isfloating && ISVISIBLE(c)) {
1676 XConfigureWindow(dpy, c->win,
1677 CWSibling | CWStackMode, &wc);
1678 wc.sibling = c->win;
1679 }
1680 }
1681 XSync(dpy, False);
1682 while (XCheckMaskEvent(dpy, EnterWindowMask, &ev)) ;
1683}
1684
1685void run(void)
1686{
1687 XEvent ev;
1688 /* main event loop */
1689 XSync(dpy, False);
1690 while (running && !XNextEvent(dpy, &ev))
1691 if (handler[ev.type])
1692 handler[ev.type] (&ev); /* call handler */
1693}
1694
1695void scan(void)
1696{
1697 unsigned int i, num;
1698 Window d1, d2, *wins = NULL;
1699 XWindowAttributes wa;
1700
1701 if (XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
1702 for (i = 0; i < num; i++) {
1703 if (!XGetWindowAttributes(dpy, wins[i], &wa)
1704 || wa.override_redirect
1705 || XGetTransientForHint(dpy, wins[i], &d1))
1706 continue;
1707 if (wa.map_state == IsViewable
1708 || getstate(wins[i]) == IconicState)
1709 manage(wins[i], &wa);
1710 }
1711 for (i = 0; i < num; i++) { /* now the transients */
1712 if (!XGetWindowAttributes(dpy, wins[i], &wa))
1713 continue;
1714 if (XGetTransientForHint(dpy, wins[i], &d1)
1715 && (wa.map_state == IsViewable
1716 || getstate(wins[i]) == IconicState))
1717 manage(wins[i], &wa);
1718 }
1719 if (wins)
1720 XFree(wins);
1721 }
1722}
1723
1724void sendmon(Client *c, Monitor *m)
1725{
1726 if (c->mon == m)
1727 return;
1728 unfocus(c, 1);
1729 detach(c);
1730 detachstack(c);
1731 c->mon = m;
1732 c->tags = m->tagset[m->seltags]; /* assign tags of target monitor */
1733 attach(c);
1734 attachstack(c);
1735 focus(NULL);
1736 arrange(NULL);
1737}
1738
1739void setclientstate(Client *c, long state)
1740{
1741 long data[] = { state, None };
1742
1743 XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,
1744 PropModeReplace, (unsigned char *)data, 2);
1745}
1746
1747int
1748sendevent(Window w, Atom proto, int mask, long d0, long d1, long d2, long d3,
1749 long d4)
1750{
1751 int n;
1752 Atom *protocols, mt;
1753 int exists = 0;
1754 XEvent ev;
1755
1756 if (proto == wmatom[WMTakeFocus] || proto == wmatom[WMDelete]) {
1757 mt = wmatom[WMProtocols];
1758 if (XGetWMProtocols(dpy, w, &protocols, &n)) {
1759 while (!exists && n--)
1760 exists = protocols[n] == proto;
1761 XFree(protocols);
1762 }
1763 } else {
1764 exists = True;
1765 mt = proto;
1766 }
1767
1768 if (exists) {
1769 ev.type = ClientMessage;
1770 ev.xclient.window = w;
1771 ev.xclient.message_type = mt;
1772 ev.xclient.format = 32;
1773 ev.xclient.data.l[0] = d0;
1774 ev.xclient.data.l[1] = d1;
1775 ev.xclient.data.l[2] = d2;
1776 ev.xclient.data.l[3] = d3;
1777 ev.xclient.data.l[4] = d4;
1778 XSendEvent(dpy, w, False, mask, &ev);
1779 }
1780 return exists;
1781}
1782
1783void setfocus(Client *c)
1784{
1785 if (!c->neverfocus) {
1786 XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
1787 XChangeProperty(dpy, root, netatom[NetActiveWindow],
1788 XA_WINDOW, 32, PropModeReplace,
1789 (unsigned char *)&(c->win), 1);
1790 }
1791 sendevent(c->win, wmatom[WMTakeFocus], NoEventMask, wmatom[WMTakeFocus],
1792 CurrentTime, 0, 0, 0);
1793}
1794
1795void setfullscreen(Client *c, int fullscreen)
1796{
1797 if (fullscreen && !c->isfullscreen) {
1798 XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
1799 PropModeReplace,
1800 (unsigned char *)&netatom[NetWMFullscreen], 1);
1801 c->isfullscreen = 1;
1802 c->oldstate = c->isfloating;
1803 c->oldbw = c->bw;
1804 c->bw = 0;
1805 c->isfloating = 1;
1806 resizeclient(c, c->mon->mx, c->mon->my, c->mon->mw, c->mon->mh);
1807 XRaiseWindow(dpy, c->win);
1808 } else if (!fullscreen && c->isfullscreen) {
1809 XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
1810 PropModeReplace, (unsigned char *)0, 0);
1811 c->isfullscreen = 0;
1812 c->isfloating = c->oldstate;
1813 c->bw = c->oldbw;
1814 c->x = c->oldx;
1815 c->y = c->oldy;
1816 c->w = c->oldw;
1817 c->h = c->oldh;
1818 resizeclient(c, c->x, c->y, c->w, c->h);
1819 arrange(c->mon);
1820 }
1821}
1822
1823void setgaps(int oh, int ov, int ih, int iv)
1824{
1825 if (oh < 0)
1826 oh = 0;
1827 if (ov < 0)
1828 ov = 0;
1829 if (ih < 0)
1830 ih = 0;
1831 if (iv < 0)
1832 iv = 0;
1833
1834 selmon->gappoh = oh;
1835 selmon->gappov = ov;
1836 selmon->gappih = ih;
1837 selmon->gappiv = iv;
1838 arrange(selmon);
1839}
1840
1841void togglegaps(const Arg *arg)
1842{
1843 enablegaps = !enablegaps;
1844 arrange(selmon);
1845}
1846
1847void defaultgaps(const Arg *arg)
1848{
1849 setgaps(gappoh, gappov, gappih, gappiv);
1850}
1851
1852void incrgaps(const Arg *arg)
1853{
1854 setgaps(selmon->gappoh + arg->i,
1855 selmon->gappov + arg->i,
1856 selmon->gappih + arg->i, selmon->gappiv + arg->i);
1857}
1858
1859void incrigaps(const Arg *arg)
1860{
1861 setgaps(selmon->gappoh,
1862 selmon->gappov,
1863 selmon->gappih + arg->i, selmon->gappiv + arg->i);
1864}
1865
1866void incrogaps(const Arg *arg)
1867{
1868 setgaps(selmon->gappoh + arg->i,
1869 selmon->gappov + arg->i, selmon->gappih, selmon->gappiv);
1870}
1871
1872void incrohgaps(const Arg *arg)
1873{
1874 setgaps(selmon->gappoh + arg->i,
1875 selmon->gappov, selmon->gappih, selmon->gappiv);
1876}
1877
1878void incrovgaps(const Arg *arg)
1879{
1880 setgaps(selmon->gappoh,
1881 selmon->gappov + arg->i, selmon->gappih, selmon->gappiv);
1882}
1883
1884void incrihgaps(const Arg *arg)
1885{
1886 setgaps(selmon->gappoh,
1887 selmon->gappov, selmon->gappih + arg->i, selmon->gappiv);
1888}
1889
1890void incrivgaps(const Arg *arg)
1891{
1892 setgaps(selmon->gappoh,
1893 selmon->gappov, selmon->gappih, selmon->gappiv + arg->i);
1894}
1895
1896void setlayout(const Arg *arg)
1897{
1898 if (!arg || !arg->v || arg->v != selmon->lt[selmon->sellt])
1899 selmon->sellt ^= 1;
1900 if (arg && arg->v)
1901 selmon->lt[selmon->sellt] = (Layout *) arg->v;
1902 strncpy(selmon->ltsymbol, selmon->lt[selmon->sellt]->symbol,
1903 sizeof selmon->ltsymbol);
1904 if (selmon->sel)
1905 arrange(selmon);
1906 else
1907 drawbar(selmon);
1908}
1909
1910/* arg > 1.0 will set mfact absolutely */
1911void setmfact(const Arg *arg)
1912{
1913 float f;
1914
1915 if (!arg || !selmon->lt[selmon->sellt]->arrange)
1916 return;
1917 f = arg->f < 1.0 ? arg->f + selmon->mfact : arg->f - 1.0;
1918 if (f < 0.05 || f > 0.95)
1919 return;
1920 selmon->mfact = f;
1921 arrange(selmon);
1922}
1923
1924void setup(void)
1925{
1926 int i;
1927 XSetWindowAttributes wa;
1928 Atom utf8string;
1929 struct sigaction sa;
1930
1931 /* do not transform children into zombies when they terminate */
1932 sigemptyset(&sa.sa_mask);
1933 sa.sa_flags = SA_NOCLDSTOP | SA_NOCLDWAIT | SA_RESTART;
1934 sa.sa_handler = SIG_IGN;
1935 sigaction(SIGCHLD, &sa, NULL);
1936
1937 /* clean up any zombies (inherited from .xinitrc etc) immediately */
1938 while (waitpid(-1, NULL, WNOHANG) > 0) ;
1939
1940 /* init screen */
1941 screen = DefaultScreen(dpy);
1942 sw = DisplayWidth(dpy, screen);
1943 sh = DisplayHeight(dpy, screen);
1944 root = RootWindow(dpy, screen);
1945 drw = drw_create(dpy, screen, root, sw, sh);
1946 if (!drw_fontset_create(drw, fonts, LENGTH(fonts)))
1947 die("no fonts could be loaded.");
1948 lrpad = drw->fonts->h;
1949 bh = drw->fonts->h + 2;
1950 updategeom();
1951 /* init atoms */
1952 utf8string = XInternAtom(dpy, "UTF8_STRING", False);
1953 wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
1954 wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
1955 wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);
1956 wmatom[WMTakeFocus] = XInternAtom(dpy, "WM_TAKE_FOCUS", False);
1957 netatom[NetActiveWindow] =
1958 XInternAtom(dpy, "_NET_ACTIVE_WINDOW", False);
1959 netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
1960 netatom[NetSystemTray] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_S0", False);
1961 netatom[NetSystemTrayOP] =
1962 XInternAtom(dpy, "_NET_SYSTEM_TRAY_OPCODE", False);
1963 netatom[NetSystemTrayOrientation] =
1964 XInternAtom(dpy, "_NET_SYSTEM_TRAY_ORIENTATION", False);
1965 netatom[NetSystemTrayOrientationHorz] =
1966 XInternAtom(dpy, "_NET_SYSTEM_TRAY_ORIENTATION_HORZ", False);
1967 netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
1968 netatom[NetWMState] = XInternAtom(dpy, "_NET_WM_STATE", False);
1969 netatom[NetWMCheck] =
1970 XInternAtom(dpy, "_NET_SUPPORTING_WM_CHECK", False);
1971 netatom[NetWMFullscreen] =
1972 XInternAtom(dpy, "_NET_WM_STATE_FULLSCREEN", False);
1973 netatom[NetWMWindowType] =
1974 XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False);
1975 netatom[NetWMWindowTypeDialog] =
1976 XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False);
1977 netatom[NetClientList] = XInternAtom(dpy, "_NET_CLIENT_LIST", False);
1978 xatom[Manager] = XInternAtom(dpy, "MANAGER", False);
1979 xatom[Xembed] = XInternAtom(dpy, "_XEMBED", False);
1980 xatom[XembedInfo] = XInternAtom(dpy, "_XEMBED_INFO", False);
1981 /* init cursors */
1982 cursor[CurNormal] = drw_cur_create(drw, XC_left_ptr);
1983 cursor[CurResize] = drw_cur_create(drw, XC_sizing);
1984 cursor[CurMove] = drw_cur_create(drw, XC_fleur);
1985 /* init appearance */
1986 scheme = ecalloc(LENGTH(colors), sizeof(Clr *));
1987 for (i = 0; i < LENGTH(colors); i++)
1988 scheme[i] = drw_scm_create(drw, colors[i], 3);
1989 /* init system tray */
1990 updatesystray();
1991 /* init bars */
1992 updatebars();
1993 updatestatus();
1994 /* supporting window for NetWMCheck */
1995 wmcheckwin = XCreateSimpleWindow(dpy, root, 0, 0, 1, 1, 0, 0, 0);
1996 XChangeProperty(dpy, wmcheckwin, netatom[NetWMCheck], XA_WINDOW, 32,
1997 PropModeReplace, (unsigned char *)&wmcheckwin, 1);
1998 XChangeProperty(dpy, wmcheckwin, netatom[NetWMName], utf8string, 8,
1999 PropModeReplace, (unsigned char *)"dwm", 3);
2000 XChangeProperty(dpy, root, netatom[NetWMCheck], XA_WINDOW, 32,
2001 PropModeReplace, (unsigned char *)&wmcheckwin, 1);
2002 /* EWMH support per view */
2003 XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
2004 PropModeReplace, (unsigned char *)netatom, NetLast);
2005 XDeleteProperty(dpy, root, netatom[NetClientList]);
2006 /* select events */
2007 wa.cursor = cursor[CurNormal]->cursor;
2008 wa.event_mask = SubstructureRedirectMask | SubstructureNotifyMask
2009 | ButtonPressMask | PointerMotionMask | EnterWindowMask
2010 | LeaveWindowMask | StructureNotifyMask | PropertyChangeMask;
2011 XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
2012 XSelectInput(dpy, root, wa.event_mask);
2013 grabkeys();
2014 focus(NULL);
2015}
2016
2017void seturgent(Client *c, int urg)
2018{
2019 XWMHints *wmh;
2020
2021 c->isurgent = urg;
2022 if (!(wmh = XGetWMHints(dpy, c->win)))
2023 return;
2024 wmh->flags =
2025 urg ? (wmh->flags | XUrgencyHint) : (wmh->flags & ~XUrgencyHint);
2026 XSetWMHints(dpy, c->win, wmh);
2027 XFree(wmh);
2028}
2029
2030void showhide(Client *c)
2031{
2032 if (!c)
2033 return;
2034 if (ISVISIBLE(c)) {
2035 /* show clients top down */
2036 XMoveWindow(dpy, c->win, c->x, c->y);
2037 if ((!c->mon->lt[c->mon->sellt]->arrange || c->isfloating)
2038 && !c->isfullscreen)
2039 resize(c, c->x, c->y, c->w, c->h, 0);
2040 showhide(c->snext);
2041 } else {
2042 /* hide clients bottom up */
2043 showhide(c->snext);
2044 XMoveWindow(dpy, c->win, WIDTH(c) * -2, c->y);
2045 }
2046}
2047
2048void spawn(const Arg *arg)
2049{
2050 struct sigaction sa;
2051
2052 if (arg->v == dmenucmd)
2053 dmenumon[0] = '0' + selmon->num;
2054 if (fork() == 0) {
2055 if (dpy)
2056 close(ConnectionNumber(dpy));
2057 setsid();
2058
2059 sigemptyset(&sa.sa_mask);
2060 sa.sa_flags = 0;
2061 sa.sa_handler = SIG_DFL;
2062 sigaction(SIGCHLD, &sa, NULL);
2063
2064 execvp(((char **)arg->v)[0], (char **)arg->v);
2065 die("dwm: execvp '%s' failed:", ((char **)arg->v)[0]);
2066 }
2067}
2068
2069void tag(const Arg *arg)
2070{
2071 if (selmon->sel && arg->ui & TAGMASK) {
2072 selmon->sel->tags = arg->ui & TAGMASK;
2073 focus(NULL);
2074 arrange(selmon);
2075 }
2076}
2077
2078void tagmon(const Arg *arg)
2079{
2080 if (!selmon->sel || !mons->next)
2081 return;
2082 sendmon(selmon->sel, dirtomon(arg->i));
2083}
2084
2085void tile(Monitor *m)
2086{
2087 unsigned int i, n, h, r, oe = enablegaps, ie = enablegaps, mw, my, ty;
2088 Client *c;
2089
2090 for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++) ;
2091 if (n == 0)
2092 return;
2093 if (smartgaps == n) {
2094 oe = 0; // outer gaps disabled
2095 }
2096
2097 if (n > m->nmaster)
2098 mw = m->nmaster ? (m->ww + m->gappiv * ie) * m->mfact : 0;
2099 else
2100 mw = m->ww - 2 * m->gappov * oe + m->gappiv * ie;
2101 for (i = 0, my = ty = m->gappoh * oe, c = nexttiled(m->clients); c;
2102 c = nexttiled(c->next), i++)
2103 if (i < m->nmaster) {
2104 r = MIN(n, m->nmaster) - i;
2105 h = (m->wh - my - m->gappoh * oe -
2106 m->gappih * ie * (r - 1)) / r;
2107 resize(c, m->wx + m->gappov * oe, m->wy + my,
2108 mw - (2 * c->bw) - m->gappiv * ie,
2109 h - (2 * c->bw), 0);
2110 my += HEIGHT(c) + m->gappih * ie;
2111
2112 if (my + HEIGHT(c) < m->wh)
2113 my += HEIGHT(c);
2114 } else {
2115 r = n - i;
2116 h = (m->wh - ty - m->gappoh * oe -
2117 m->gappih * ie * (r - 1)) / r;
2118 resize(c, m->wx + mw + m->gappov * oe, m->wy + ty,
2119 m->ww - mw - (2 * c->bw) - 2 * m->gappov * oe,
2120 h - (2 * c->bw), 0);
2121 ty += HEIGHT(c) + m->gappih * ie;
2122 }
2123}
2124
2125void togglebar(const Arg *arg)
2126{
2127 selmon->showbar = !selmon->showbar;
2128 updatebarpos(selmon);
2129 resizebarwin(selmon);
2130 if (showsystray) {
2131 XWindowChanges wc;
2132 if (!selmon->showbar)
2133 wc.y = -bh;
2134 else if (selmon->showbar) {
2135 wc.y = 0;
2136 if (!selmon->topbar)
2137 wc.y = selmon->mh - bh;
2138 }
2139 XConfigureWindow(dpy, systray->win, CWY, &wc);
2140 }
2141 arrange(selmon);
2142}
2143
2144void togglefloating(const Arg *arg)
2145{
2146 if (!selmon->sel)
2147 return;
2148 if (selmon->sel->isfullscreen) /* no support for fullscreen windows */
2149 return;
2150 selmon->sel->isfloating = !selmon->sel->isfloating
2151 || selmon->sel->isfixed;
2152 if (selmon->sel->isfloating)
2153 resize(selmon->sel, selmon->sel->x, selmon->sel->y,
2154 selmon->sel->w, selmon->sel->h, 0);
2155 arrange(selmon);
2156}
2157
2158void togglefullscr(const Arg *arg)
2159{
2160 if (selmon->sel)
2161 setfullscreen(selmon->sel, !selmon->sel->isfullscreen);
2162}
2163
2164void toggletag(const Arg *arg)
2165{
2166 unsigned int newtags;
2167
2168 if (!selmon->sel)
2169 return;
2170 newtags = selmon->sel->tags ^ (arg->ui & TAGMASK);
2171 if (newtags) {
2172 selmon->sel->tags = newtags;
2173 focus(NULL);
2174 arrange(selmon);
2175 }
2176}
2177
2178void toggleview(const Arg *arg)
2179{
2180 unsigned int newtagset =
2181 selmon->tagset[selmon->seltags] ^ (arg->ui & TAGMASK);
2182
2183 if (newtagset) {
2184 selmon->tagset[selmon->seltags] = newtagset;
2185 focus(NULL);
2186 arrange(selmon);
2187 }
2188}
2189
2190void unfocus(Client *c, int setfocus)
2191{
2192 if (!c)
2193 return;
2194 grabbuttons(c, 0);
2195 XSetWindowBorder(dpy, c->win, scheme[SchemeNorm][ColBorder].pixel);
2196 if (setfocus) {
2197 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
2198 XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
2199 }
2200}
2201
2202void unmanage(Client *c, int destroyed)
2203{
2204 Monitor *m = c->mon;
2205 XWindowChanges wc;
2206
2207 if (c->swallowing) {
2208 unswallow(c);
2209 return;
2210 }
2211
2212 Client *s = swallowingclient(c->win);
2213 if (s) {
2214 free(s->swallowing);
2215 s->swallowing = NULL;
2216 arrange(m);
2217 focus(NULL);
2218 return;
2219 }
2220
2221 detach(c);
2222 detachstack(c);
2223 if (!destroyed) {
2224 wc.border_width = c->oldbw;
2225 XGrabServer(dpy); /* avoid race conditions */
2226 XSetErrorHandler(xerrordummy);
2227 XSelectInput(dpy, c->win, NoEventMask);
2228 XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */
2229 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
2230 setclientstate(c, WithdrawnState);
2231 XSync(dpy, False);
2232 XSetErrorHandler(xerror);
2233 XUngrabServer(dpy);
2234 }
2235 free(c);
2236
2237 if (!s) {
2238 arrange(m);
2239 focus(NULL);
2240 updateclientlist();
2241 }
2242}
2243
2244void unmapnotify(XEvent *e)
2245{
2246 Client *c;
2247 XUnmapEvent *ev = &e->xunmap;
2248
2249 if ((c = wintoclient(ev->window))) {
2250 if (ev->send_event)
2251 setclientstate(c, WithdrawnState);
2252 else
2253 unmanage(c, 0);
2254 } else if ((c = wintosystrayicon(ev->window))) {
2255 /* KLUDGE! sometimes icons occasionally unmap their windows, but do
2256 * _not_ destroy them. We map those windows back */
2257 XMapRaised(dpy, c->win);
2258 updatesystray();
2259 }
2260}
2261
2262void updatebars(void)
2263{
2264 unsigned int w;
2265 Monitor *m;
2266 XSetWindowAttributes wa = {
2267 .override_redirect = True,
2268 .background_pixmap = ParentRelative,
2269 .event_mask = ButtonPressMask | ExposureMask
2270 };
2271 XClassHint ch = { "dwm", "dwm" };
2272 for (m = mons; m; m = m->next) {
2273 if (m->barwin)
2274 continue;
2275 w = m->ww;
2276 if (showsystray && m == systraytomon(m))
2277 w -= getsystraywidth();
2278 m->barwin =
2279 XCreateWindow(dpy, root, m->wx, m->by, w, bh, 0,
2280 DefaultDepth(dpy, screen), CopyFromParent,
2281 DefaultVisual(dpy, screen),
2282 CWOverrideRedirect | CWBackPixmap |
2283 CWEventMask, &wa);
2284 XDefineCursor(dpy, m->barwin, cursor[CurNormal]->cursor);
2285 if (showsystray && m == systraytomon(m))
2286 XMapRaised(dpy, systray->win);
2287 XMapRaised(dpy, m->barwin);
2288 XSetClassHint(dpy, m->barwin, &ch);
2289 }
2290}
2291
2292void updatebarpos(Monitor *m)
2293{
2294 m->wy = m->my;
2295 m->wh = m->mh;
2296 if (m->showbar) {
2297 m->wh -= bh;
2298 m->by = m->topbar ? m->wy : m->wy + m->wh;
2299 m->wy = m->topbar ? m->wy + bh : m->wy;
2300 } else
2301 m->by = -bh;
2302}
2303
2304void updateclientlist()
2305{
2306 Client *c;
2307 Monitor *m;
2308
2309 XDeleteProperty(dpy, root, netatom[NetClientList]);
2310 for (m = mons; m; m = m->next)
2311 for (c = m->clients; c; c = c->next)
2312 XChangeProperty(dpy, root, netatom[NetClientList],
2313 XA_WINDOW, 32, PropModeAppend,
2314 (unsigned char *)&(c->win), 1);
2315}
2316
2317int updategeom(void)
2318{
2319 int dirty = 0;
2320
2321#ifdef XINERAMA
2322 if (XineramaIsActive(dpy)) {
2323 int i, j, n, nn;
2324 Client *c;
2325 Monitor *m;
2326 XineramaScreenInfo *info = XineramaQueryScreens(dpy, &nn);
2327 XineramaScreenInfo *unique = NULL;
2328
2329 for (n = 0, m = mons; m; m = m->next, n++) ;
2330 /* only consider unique geometries as separate screens */
2331 unique = ecalloc(nn, sizeof(XineramaScreenInfo));
2332 for (i = 0, j = 0; i < nn; i++)
2333 if (isuniquegeom(unique, j, &info[i]))
2334 memcpy(&unique[j++], &info[i],
2335 sizeof(XineramaScreenInfo));
2336 XFree(info);
2337 nn = j;
2338
2339 /* new monitors if nn > n */
2340 for (i = n; i < nn; i++) {
2341 for (m = mons; m && m->next; m = m->next) ;
2342 if (m)
2343 m->next = createmon();
2344 else
2345 mons = createmon();
2346 }
2347 for (i = 0, m = mons; i < nn && m; m = m->next, i++)
2348 if (i >= n
2349 || unique[i].x_org != m->mx
2350 || unique[i].y_org != m->my
2351 || unique[i].width != m->mw
2352 || unique[i].height != m->mh) {
2353 dirty = 1;
2354 m->num = i;
2355 m->mx = m->wx = unique[i].x_org;
2356 m->my = m->wy = unique[i].y_org;
2357 m->mw = m->ww = unique[i].width;
2358 m->mh = m->wh = unique[i].height;
2359 updatebarpos(m);
2360 }
2361 /* removed monitors if n > nn */
2362 for (i = nn; i < n; i++) {
2363 for (m = mons; m && m->next; m = m->next) ;
2364 while ((c = m->clients)) {
2365 dirty = 1;
2366 m->clients = c->next;
2367 detachstack(c);
2368 c->mon = mons;
2369 attach(c);
2370 attachstack(c);
2371 }
2372 if (m == selmon)
2373 selmon = mons;
2374 cleanupmon(m);
2375 }
2376 free(unique);
2377 } else
2378#endif /* XINERAMA */
2379 { /* default monitor setup */
2380 if (!mons)
2381 mons = createmon();
2382 if (mons->mw != sw || mons->mh != sh) {
2383 dirty = 1;
2384 mons->mw = mons->ww = sw;
2385 mons->mh = mons->wh = sh;
2386 updatebarpos(mons);
2387 }
2388 }
2389 if (dirty) {
2390 selmon = mons;
2391 selmon = wintomon(root);
2392 }
2393 return dirty;
2394}
2395
2396void updatenumlockmask(void)
2397{
2398 unsigned int i, j;
2399 XModifierKeymap *modmap;
2400
2401 numlockmask = 0;
2402 modmap = XGetModifierMapping(dpy);
2403 for (i = 0; i < 8; i++)
2404 for (j = 0; j < modmap->max_keypermod; j++)
2405 if (modmap->modifiermap[i * modmap->max_keypermod + j]
2406 == XKeysymToKeycode(dpy, XK_Num_Lock))
2407 numlockmask = (1 << i);
2408 XFreeModifiermap(modmap);
2409}
2410
2411void updatesizehints(Client *c)
2412{
2413 long msize;
2414 XSizeHints size;
2415
2416 if (!XGetWMNormalHints(dpy, c->win, &size, &msize))
2417 /* size is uninitialized, ensure that size.flags aren't used */
2418 size.flags = PSize;
2419 if (size.flags & PBaseSize) {
2420 c->basew = size.base_width;
2421 c->baseh = size.base_height;
2422 } else if (size.flags & PMinSize) {
2423 c->basew = size.min_width;
2424 c->baseh = size.min_height;
2425 } else
2426 c->basew = c->baseh = 0;
2427 if (size.flags & PResizeInc) {
2428 c->incw = size.width_inc;
2429 c->inch = size.height_inc;
2430 } else
2431 c->incw = c->inch = 0;
2432 if (size.flags & PMaxSize) {
2433 c->maxw = size.max_width;
2434 c->maxh = size.max_height;
2435 } else
2436 c->maxw = c->maxh = 0;
2437 if (size.flags & PMinSize) {
2438 c->minw = size.min_width;
2439 c->minh = size.min_height;
2440 } else if (size.flags & PBaseSize) {
2441 c->minw = size.base_width;
2442 c->minh = size.base_height;
2443 } else
2444 c->minw = c->minh = 0;
2445 if (size.flags & PAspect) {
2446 c->mina = (float)size.min_aspect.y / size.min_aspect.x;
2447 c->maxa = (float)size.max_aspect.x / size.max_aspect.y;
2448 } else
2449 c->maxa = c->mina = 0.0;
2450 c->isfixed = (c->maxw && c->maxh && c->maxw == c->minw
2451 && c->maxh == c->minh);
2452 c->hintsvalid = 1;
2453}
2454
2455void updatestatus(void)
2456{
2457 if (!gettextprop(root, XA_WM_NAME, stext, sizeof(stext)))
2458 strcpy(stext, "dwm-" VERSION);
2459 drawbar(selmon);
2460 updatesystray();
2461}
2462
2463void updatesystrayicongeom(Client *i, int w, int h)
2464{
2465 if (i) {
2466 i->h = bh;
2467 if (w == h)
2468 i->w = bh;
2469 else if (h == bh)
2470 i->w = w;
2471 else
2472 i->w = (int)((float)bh * ((float)w / (float)h));
2473 applysizehints(i, &(i->x), &(i->y), &(i->w), &(i->h), False);
2474 /* force icons into the systray dimensions if they don't want to */
2475 if (i->h > bh) {
2476 if (i->w == i->h)
2477 i->w = bh;
2478 else
2479 i->w =
2480 (int)((float)bh *
2481 ((float)i->w / (float)i->h));
2482 i->h = bh;
2483 }
2484 }
2485}
2486
2487void updatesystrayiconstate(Client *i, XPropertyEvent *ev)
2488{
2489 long flags;
2490 int code = 0;
2491
2492 if (!showsystray || !i || ev->atom != xatom[XembedInfo] ||
2493 !(flags = getatomprop(i, xatom[XembedInfo])))
2494 return;
2495
2496 if (flags & XEMBED_MAPPED && !i->tags) {
2497 i->tags = 1;
2498 code = XEMBED_WINDOW_ACTIVATE;
2499 XMapRaised(dpy, i->win);
2500 setclientstate(i, NormalState);
2501 } else if (!(flags & XEMBED_MAPPED) && i->tags) {
2502 i->tags = 0;
2503 code = XEMBED_WINDOW_DEACTIVATE;
2504 XUnmapWindow(dpy, i->win);
2505 setclientstate(i, WithdrawnState);
2506 } else
2507 return;
2508 sendevent(i->win, xatom[Xembed], StructureNotifyMask, CurrentTime, code,
2509 0, systray->win, XEMBED_EMBEDDED_VERSION);
2510}
2511
2512void updatesystray(void)
2513{
2514 XSetWindowAttributes wa;
2515 XWindowChanges wc;
2516 Client *i;
2517 Monitor *m = systraytomon(NULL);
2518 unsigned int x = m->mx + m->mw;
2519 unsigned int sw = TEXTW(stext) - lrpad + systrayspacing;
2520 unsigned int w = 1;
2521
2522 if (!showsystray)
2523 return;
2524 if (systrayonleft)
2525 x -= sw + lrpad / 2;
2526 if (!systray) {
2527 /* init systray */
2528 if (!(systray = (Systray *) calloc(1, sizeof(Systray))))
2529 die("fatal: could not malloc() %u bytes\n",
2530 sizeof(Systray));
2531 systray->win =
2532 XCreateSimpleWindow(dpy, root, x, m->by, w, bh, 0, 0,
2533 scheme[SchemeSel][ColBg].pixel);
2534 wa.event_mask = ButtonPressMask | ExposureMask;
2535 wa.override_redirect = True;
2536 wa.background_pixel = scheme[SchemeNorm][ColBg].pixel;
2537 XSelectInput(dpy, systray->win, SubstructureNotifyMask);
2538 XChangeProperty(dpy, systray->win,
2539 netatom[NetSystemTrayOrientation], XA_CARDINAL,
2540 32, PropModeReplace,
2541 (unsigned char *)
2542 &netatom[NetSystemTrayOrientationHorz], 1);
2543 XChangeWindowAttributes(dpy, systray->win,
2544 CWEventMask | CWOverrideRedirect |
2545 CWBackPixel, &wa);
2546 XMapRaised(dpy, systray->win);
2547 XSetSelectionOwner(dpy, netatom[NetSystemTray], systray->win,
2548 CurrentTime);
2549 if (XGetSelectionOwner(dpy, netatom[NetSystemTray]) ==
2550 systray->win) {
2551 sendevent(root, xatom[Manager], StructureNotifyMask,
2552 CurrentTime, netatom[NetSystemTray],
2553 systray->win, 0, 0);
2554 XSync(dpy, False);
2555 } else {
2556 fprintf(stderr, "dwm: unable to obtain system tray.\n");
2557 free(systray);
2558 systray = NULL;
2559 return;
2560 }
2561 }
2562 for (w = 0, i = systray->icons; i; i = i->next) {
2563 /* make sure the background color stays the same */
2564 wa.background_pixel = scheme[SchemeNorm][ColBg].pixel;
2565 XChangeWindowAttributes(dpy, i->win, CWBackPixel, &wa);
2566 XMapRaised(dpy, i->win);
2567 w += systrayspacing;
2568 i->x = w;
2569 XMoveResizeWindow(dpy, i->win, i->x, 0, i->w, i->h);
2570 w += i->w;
2571 if (i->mon != m)
2572 i->mon = m;
2573 }
2574 w = w ? w + systrayspacing : 1;
2575 x -= w;
2576 XMoveResizeWindow(dpy, systray->win, x, m->by, w, bh);
2577 wc.x = x;
2578 wc.y = m->by;
2579 wc.width = w;
2580 wc.height = bh;
2581 wc.stack_mode = Above;
2582 wc.sibling = m->barwin;
2583 XConfigureWindow(dpy, systray->win,
2584 CWX | CWY | CWWidth | CWHeight | CWSibling |
2585 CWStackMode, &wc);
2586 XMapWindow(dpy, systray->win);
2587 XMapSubwindows(dpy, systray->win);
2588 /* redraw background */
2589 XSetForeground(dpy, drw->gc, scheme[SchemeNorm][ColBg].pixel);
2590 XFillRectangle(dpy, systray->win, drw->gc, 0, 0, w, bh);
2591 XSync(dpy, False);
2592}
2593
2594void updatetitle(Client *c)
2595{
2596 if (!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
2597 gettextprop(c->win, XA_WM_NAME, c->name, sizeof c->name);
2598 if (c->name[0] == '\0') /* hack to mark broken clients */
2599 strcpy(c->name, broken);
2600}
2601
2602void updatewindowtype(Client *c)
2603{
2604 Atom state = getatomprop(c, netatom[NetWMState]);
2605 Atom wtype = getatomprop(c, netatom[NetWMWindowType]);
2606
2607 if (state == netatom[NetWMFullscreen])
2608 setfullscreen(c, 1);
2609 if (wtype == netatom[NetWMWindowTypeDialog])
2610 c->isfloating = 1;
2611}
2612
2613void updatewmhints(Client *c)
2614{
2615 XWMHints *wmh;
2616
2617 if ((wmh = XGetWMHints(dpy, c->win))) {
2618 if (c == selmon->sel && wmh->flags & XUrgencyHint) {
2619 wmh->flags &= ~XUrgencyHint;
2620 XSetWMHints(dpy, c->win, wmh);
2621 } else
2622 c->isurgent = (wmh->flags & XUrgencyHint) ? 1 : 0;
2623 if (wmh->flags & InputHint)
2624 c->neverfocus = !wmh->input;
2625 else
2626 c->neverfocus = 0;
2627 XFree(wmh);
2628 }
2629}
2630
2631void view(const Arg *arg)
2632{
2633 if ((arg->ui & TAGMASK) == selmon->tagset[selmon->seltags])
2634 return;
2635 selmon->seltags ^= 1; /* toggle sel tagset */
2636 if (arg->ui & TAGMASK)
2637 selmon->tagset[selmon->seltags] = arg->ui & TAGMASK;
2638 focus(NULL);
2639 arrange(selmon);
2640}
2641
2642pid_t winpid(Window w)
2643{
2644
2645 pid_t result = 0;
2646
2647#ifdef __linux__
2648 xcb_res_client_id_spec_t spec = { 0 };
2649 spec.client = w;
2650 spec.mask = XCB_RES_CLIENT_ID_MASK_LOCAL_CLIENT_PID;
2651
2652 xcb_generic_error_t *e = NULL;
2653 xcb_res_query_client_ids_cookie_t c =
2654 xcb_res_query_client_ids(xcon, 1, &spec);
2655 xcb_res_query_client_ids_reply_t *r =
2656 xcb_res_query_client_ids_reply(xcon, c, &e);
2657
2658 if (!r)
2659 return (pid_t) 0;
2660
2661 xcb_res_client_id_value_iterator_t i =
2662 xcb_res_query_client_ids_ids_iterator(r);
2663 for (; i.rem; xcb_res_client_id_value_next(&i)) {
2664 spec = i.data->spec;
2665 if (spec.mask & XCB_RES_CLIENT_ID_MASK_LOCAL_CLIENT_PID) {
2666 uint32_t *t = xcb_res_client_id_value_value(i.data);
2667 result = *t;
2668 break;
2669 }
2670 }
2671
2672 free(r);
2673
2674 if (result == (pid_t) - 1)
2675 result = 0;
2676
2677#endif /* __linux__ */
2678
2679#ifdef __OpenBSD__
2680 Atom type;
2681 int format;
2682 unsigned long len, bytes;
2683 unsigned char *prop;
2684 pid_t ret;
2685
2686 if (XGetWindowProperty
2687 (dpy, w, XInternAtom(dpy, "_NET_WM_PID", 0), 0, 1, False,
2688 AnyPropertyType, &type, &format, &len, &bytes, &prop) != Success
2689 || !prop)
2690 return 0;
2691
2692 ret = *(pid_t *) prop;
2693 XFree(prop);
2694 result = ret;
2695
2696#endif /* __OpenBSD__ */
2697 return result;
2698}
2699
2700pid_t getparentprocess(pid_t p)
2701{
2702 unsigned int v = 0;
2703
2704#ifdef __linux__
2705 FILE *f;
2706 char buf[256];
2707 snprintf(buf, sizeof(buf) - 1, "/proc/%u/stat", (unsigned)p);
2708
2709 if (!(f = fopen(buf, "r")))
2710 return 0;
2711
2712 fscanf(f, "%*u %*s %*c %u", &v);
2713 fclose(f);
2714#endif /* __linux__ */
2715
2716#ifdef __OpenBSD__
2717 int n;
2718 kvm_t *kd;
2719 struct kinfo_proc *kp;
2720
2721 kd = kvm_openfiles(NULL, NULL, NULL, KVM_NO_FILES, NULL);
2722 if (!kd)
2723 return 0;
2724
2725 kp = kvm_getprocs(kd, KERN_PROC_PID, p, sizeof(*kp), &n);
2726 v = kp->p_ppid;
2727#endif /* __OpenBSD__ */
2728
2729 return (pid_t) v;
2730}
2731
2732int isdescprocess(pid_t p, pid_t c)
2733{
2734 while (p != c && c != 0)
2735 c = getparentprocess(c);
2736
2737 return (int)c;
2738}
2739
2740Client *termforwin(const Client *w)
2741{
2742 Client *c;
2743 Monitor *m;
2744
2745 if (!w->pid || w->isterminal)
2746 return NULL;
2747
2748 for (m = mons; m; m = m->next) {
2749 for (c = m->clients; c; c = c->next) {
2750 if (c->isterminal && !c->swallowing && c->pid
2751 && isdescprocess(c->pid, w->pid))
2752 return c;
2753 }
2754 }
2755
2756 return NULL;
2757}
2758
2759Client *swallowingclient(Window w)
2760{
2761 Client *c;
2762 Monitor *m;
2763
2764 for (m = mons; m; m = m->next) {
2765 for (c = m->clients; c; c = c->next) {
2766 if (c->swallowing && c->swallowing->win == w)
2767 return c;
2768 }
2769 }
2770
2771 return NULL;
2772}
2773
2774Client *wintoclient(Window w)
2775{
2776 Client *c;
2777 Monitor *m;
2778
2779 for (m = mons; m; m = m->next)
2780 for (c = m->clients; c; c = c->next)
2781 if (c->win == w)
2782 return c;
2783 return NULL;
2784}
2785
2786Client *wintosystrayicon(Window w)
2787{
2788 Client *i = NULL;
2789
2790 if (!showsystray || !w)
2791 return i;
2792 for (i = systray->icons; i && i->win != w; i = i->next) ;
2793 return i;
2794}
2795
2796Monitor *wintomon(Window w)
2797{
2798 int x, y;
2799 Client *c;
2800 Monitor *m;
2801
2802 if (w == root && getrootptr(&x, &y))
2803 return recttomon(x, y, 1, 1);
2804 for (m = mons; m; m = m->next)
2805 if (w == m->barwin)
2806 return m;
2807 if ((c = wintoclient(w)))
2808 return c->mon;
2809 return selmon;
2810}
2811
2812/* There's no way to check accesses to destroyed windows, thus those cases are
2813 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
2814 * default error handler, which may call exit. */
2815int xerror(Display *dpy, XErrorEvent *ee)
2816{
2817 if (ee->error_code == BadWindow
2818 || (ee->request_code == X_SetInputFocus
2819 && ee->error_code == BadMatch)
2820 || (ee->request_code == X_PolyText8
2821 && ee->error_code == BadDrawable)
2822 || (ee->request_code == X_PolyFillRectangle
2823 && ee->error_code == BadDrawable)
2824 || (ee->request_code == X_PolySegment
2825 && ee->error_code == BadDrawable)
2826 || (ee->request_code == X_ConfigureWindow
2827 && ee->error_code == BadMatch)
2828 || (ee->request_code == X_GrabButton && ee->error_code == BadAccess)
2829 || (ee->request_code == X_GrabKey && ee->error_code == BadAccess)
2830 || (ee->request_code == X_CopyArea
2831 && ee->error_code == BadDrawable))
2832 return 0;
2833 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
2834 ee->request_code, ee->error_code);
2835 return xerrorxlib(dpy, ee); /* may call exit */
2836}
2837
2838int xerrordummy(Display *dpy, XErrorEvent *ee)
2839{
2840 return 0;
2841}
2842
2843/* Startup Error handler to check if another window manager
2844 * is already running. */
2845int xerrorstart(Display *dpy, XErrorEvent *ee)
2846{
2847 die("dwm: another window manager is already running");
2848 return -1;
2849}
2850
2851Monitor *systraytomon(Monitor *m)
2852{
2853 Monitor *t;
2854 int i, n;
2855 if (!systraypinning) {
2856 if (!m)
2857 return selmon;
2858 return m == selmon ? m : NULL;
2859 }
2860 for (n = 1, t = mons; t && t->next; n++, t = t->next) ;
2861 for (i = 1, t = mons; t && t->next && i < systraypinning;
2862 i++, t = t->next) ;
2863 if (systraypinningfailfirst && n < systraypinning)
2864 return mons;
2865 return t;
2866}
2867
2868void zoom(const Arg *arg)
2869{
2870 Client *c = selmon->sel;
2871
2872 if (!selmon->lt[selmon->sellt]->arrange || !c || c->isfloating)
2873 return;
2874 if (c == nexttiled(selmon->clients) && !(c = nexttiled(c->next)))
2875 return;
2876 pop(c);
2877}
2878
2879int main(int argc, char *argv[])
2880{
2881 if (argc == 2 && !strcmp("-v", argv[1]))
2882 die("dwm-" VERSION);
2883 else if (argc != 1)
2884 die("usage: dwm [-v]");
2885 if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
2886 fputs("warning: no locale support\n", stderr);
2887 if (!(dpy = XOpenDisplay(NULL)))
2888 die("dwm: cannot open display");
2889 if (!(xcon = XGetXCBConnection(dpy)))
2890 die("dwm: cannot get xcb connection\n");
2891 checkotherwm();
2892 setup();
2893#ifdef __OpenBSD__
2894 if (pledge("stdio rpath proc exec ps", NULL) == -1)
2895 die("pledge");
2896#endif /* __OpenBSD__ */
2897 scan();
2898 run();
2899 cleanup();
2900 XCloseDisplay(dpy);
2901 return EXIT_SUCCESS;
2902}
generated by cgit v1.2.3 (git 2.39.1) at 2025-12-17 15:31:13 +0000