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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#include <X11/XF86keysym.h>
53
54/* macros */
55#define BUTTONMASK (ButtonPressMask|ButtonReleaseMask)
56#define CLEANMASK(mask) (mask & ~(numlockmask|LockMask) & (ShiftMask|ControlMask|Mod1Mask|Mod2Mask|Mod3Mask|Mod4Mask|Mod5Mask))
57#define INTERSECT(x,y,w,h,m) (MAX(0, MIN((x)+(w),(m)->wx+(m)->ww) - MAX((x),(m)->wx)) \
58 * MAX(0, MIN((y)+(h),(m)->wy+(m)->wh) - MAX((y),(m)->wy)))
59#define ISVISIBLE(C) ((C->tags & C->mon->tagset[C->mon->seltags]))
60#define LENGTH(X) (sizeof X / sizeof X[0])
61#define MOUSEMASK (BUTTONMASK|PointerMotionMask)
62#define WIDTH(X) ((X)->w + 2 * (X)->bw)
63#define HEIGHT(X) ((X)->h + 2 * (X)->bw)
64#define TAGMASK ((1 << LENGTH(tags)) - 1)
65#define TEXTW(X) (drw_fontset_getwidth(drw, (X)) + lrpad)
66
67#define SYSTEM_TRAY_REQUEST_DOCK 0
68/* XEMBED messages */
69#define XEMBED_EMBEDDED_NOTIFY 0
70#define XEMBED_WINDOW_ACTIVATE 1
71#define XEMBED_FOCUS_IN 4
72#define XEMBED_MODALITY_ON 10
73#define XEMBED_MAPPED (1 << 0)
74#define XEMBED_WINDOW_ACTIVATE 1
75#define XEMBED_WINDOW_DEACTIVATE 2
76#define VERSION_MAJOR 0
77#define VERSION_MINOR 0
78#define XEMBED_EMBEDDED_VERSION (VERSION_MAJOR << 16) | VERSION_MINOR
79
80/* enums */
81enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
82enum { SchemeNorm, SchemeSel }; /* color schemes */
83enum { NetSupported, NetWMName, NetWMState, NetWMCheck,
84 NetSystemTray, NetSystemTrayOP, NetSystemTrayOrientation,
85 NetSystemTrayOrientationHorz,
86 NetWMFullscreen, NetActiveWindow, NetWMWindowType,
87 NetWMWindowTypeDialog, NetClientList, NetLast
88}; /* EWMH atoms */
89enum { Manager, Xembed, XembedInfo, XLast }; /* Xembed atoms */
90enum { WMProtocols, WMDelete, WMState, WMTakeFocus, WMLast }; /* default atoms */
91enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle,
92 ClkClientWin, ClkRootWin, ClkLast
93}; /* clicks */
94
95typedef union {
96 int i;
97 unsigned int ui;
98 float f;
99 const void *v;
100} Arg;
101
102typedef struct {
103 unsigned int click;
104 unsigned int mask;
105 unsigned int button;
106 void (*func)(const Arg * arg);
107 const Arg arg;
108} Button;
109
110typedef struct Monitor Monitor;
111typedef struct Client Client;
112struct Client {
113 char name[256];
114 float mina, maxa;
115 int x, y, w, h;
116 int oldx, oldy, oldw, oldh;
117 int basew, baseh, incw, inch, maxw, maxh, minw, minh, hintsvalid;
118 int bw, oldbw;
119 unsigned int tags;
120 int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen,
121 isterminal, noswallow;
122 pid_t pid;
123 Client *next;
124 Client *snext;
125 Client *swallowing;
126 Monitor *mon;
127 Window win;
128};
129
130typedef struct {
131 unsigned int mod;
132 KeySym keysym;
133 void (*func)(const Arg *);
134 const Arg arg;
135} Key;
136
137typedef struct {
138 const char *symbol;
139 void (*arrange)(Monitor *);
140} Layout;
141
142struct Monitor {
143 char ltsymbol[16];
144 float mfact;
145 int nmaster;
146 int num;
147 int by; /* bar geometry */
148 int mx, my, mw, mh; /* screen size */
149 int wx, wy, ww, wh; /* window area */
150 int gappih; /* horizontal gap between windows */
151 int gappiv; /* vertical gap between windows */
152 int gappoh; /* horizontal outer gaps */
153 int gappov; /* vertical outer gaps */
154 unsigned int seltags;
155 unsigned int sellt;
156 unsigned int tagset[2];
157 int showbar;
158 int topbar;
159 Client *clients;
160 Client *sel;
161 Client *stack;
162 Monitor *next;
163 Window barwin;
164 const Layout *lt[2];
165};
166
167typedef struct {
168 const char *class;
169 const char *instance;
170 const char *title;
171 unsigned int tags;
172 int isfloating;
173 int isterminal;
174 int noswallow;
175 int monitor;
176} Rule;
177
178typedef struct Systray Systray;
179struct Systray {
180 Window win;
181 Client *icons;
182};
183
184/* function declarations */
185static void applyrules(Client * c);
186static int applysizehints(Client * c, int *x, int *y, int *w, int *h,
187 int interact);
188static void arrange(Monitor * m);
189static void arrangemon(Monitor * m);
190static void attach(Client * c);
191static void attachstack(Client * c);
192static void buttonpress(XEvent * e);
193static void checkotherwm(void);
194static void cleanup(void);
195static void cleanupmon(Monitor * mon);
196static void clientmessage(XEvent * e);
197static void configure(Client * c);
198static void configurenotify(XEvent * e);
199static void configurerequest(XEvent * e);
200static Monitor *createmon(void);
201static void destroynotify(XEvent * e);
202static void detach(Client * c);
203static void detachstack(Client * c);
204static Monitor *dirtomon(int dir);
205static void drawbar(Monitor * m);
206static void drawbars(void);
207static void enternotify(XEvent * e);
208static void expose(XEvent * e);
209static void focus(Client * c);
210static void focusin(XEvent * e);
211static void focusmon(const Arg * arg);
212static void focusstack(const Arg * arg);
213static Atom getatomprop(Client * c, Atom prop);
214static int getrootptr(int *x, int *y);
215static long getstate(Window w);
216static unsigned int getsystraywidth();
217static int gettextprop(Window w, Atom atom, char *text, unsigned int size);
218static void grabbuttons(Client * c, int focused);
219static void grabkeys(void);
220static void incnmaster(const Arg * arg);
221static void keypress(XEvent * e);
222static void killclient(const Arg * arg);
223static void manage(Window w, XWindowAttributes * wa);
224static void mappingnotify(XEvent * e);
225static void maprequest(XEvent * e);
226static void monocle(Monitor * m);
227static void motionnotify(XEvent * e);
228static void movemouse(const Arg * arg);
229static Client *nexttiled(Client * c);
230static void pop(Client * c);
231static void propertynotify(XEvent * e);
232static void quit(const Arg * arg);
233static Monitor *recttomon(int x, int y, int w, int h);
234static void removesystrayicon(Client * i);
235static void resize(Client * c, int x, int y, int w, int h, int interact);
236static void resizebarwin(Monitor * m);
237static void resizeclient(Client * c, int x, int y, int w, int h);
238static void resizemouse(const Arg * arg);
239static void resizerequest(XEvent * e);
240static void restack(Monitor * m);
241static void run(void);
242static void scan(void);
243static int sendevent(Window w, Atom proto, int m, long d0, long d1, long d2,
244 long d3, long d4);
245static void sendmon(Client * c, Monitor * m);
246static void setclientstate(Client * c, long state);
247static void setfocus(Client * c);
248static void setfullscreen(Client * c, int fullscreen);
249static void setgaps(int oh, int ov, int ih, int iv);
250static void incrgaps(const Arg * arg);
251static void incrigaps(const Arg * arg);
252static void incrogaps(const Arg * arg);
253static void incrohgaps(const Arg * arg);
254static void incrovgaps(const Arg * arg);
255static void incrihgaps(const Arg * arg);
256static void incrivgaps(const Arg * arg);
257static void togglegaps(const Arg * arg);
258static void defaultgaps(const Arg * arg);
259static void setlayout(const Arg * arg);
260static void setmfact(const Arg * arg);
261static void setup(void);
262static void seturgent(Client * c, int urg);
263static void showhide(Client * c);
264static void spawn(const Arg * arg);
265static Monitor *systraytomon(Monitor * m);
266static void tag(const Arg * arg);
267static void tagmon(const Arg * arg);
268static void tile(Monitor * m);
269static void togglebar(const Arg * arg);
270static void togglefloating(const Arg * arg);
271static void togglefullscr(const Arg * arg);
272static void toggletag(const Arg * arg);
273static void toggleview(const Arg * arg);
274static void unfocus(Client * c, int setfocus);
275static void unmanage(Client * c, int destroyed);
276static void unmapnotify(XEvent * e);
277static void updatebarpos(Monitor * m);
278static void updatebars(void);
279static void updateclientlist(void);
280static int updategeom(void);
281static void updatenumlockmask(void);
282static void updatesystray(void);
283static void updatesystrayicongeom(Client * i, int w, int h);
284static void updatesystrayiconstate(Client * i, XPropertyEvent * ev);
285static void updatesizehints(Client * c);
286static void updatestatus(void);
287static void updatetitle(Client * c);
288static void updatewindowtype(Client * c);
289static void updatewmhints(Client * c);
290static void view(const Arg * arg);
291static Client *wintoclient(Window w);
292static Monitor *wintomon(Window w);
293static Client *wintosystrayicon(Window w);
294static int xerror(Display * dpy, XErrorEvent * ee);
295static int xerrordummy(Display * dpy, XErrorEvent * ee);
296static int xerrorstart(Display * dpy, XErrorEvent * ee);
297static void zoom(const Arg * arg);
298
299static pid_t getparentprocess(pid_t p);
300static int isdescprocess(pid_t p, pid_t c);
301static Client *swallowingclient(Window w);
302static Client *termforwin(const Client * c);
303static pid_t winpid(Window w);
304
305/* variables */
306static Systray *systray = NULL;
307static const char broken[] = "broken";
308static char stext[256];
309static int screen;
310static int sw, sh; /* X display screen geometry width, height */
311static int bh; /* bar height */
312static int enablegaps = 1; /* enables gaps, used by togglegaps */
313static int lrpad; /* sum of left and right padding for text */
314static int (*xerrorxlib)(Display *, XErrorEvent *);
315static unsigned int numlockmask = 0;
316static void (*handler[LASTEvent])(XEvent *) = {
317 [ButtonPress] = buttonpress,
318 [ClientMessage] = clientmessage,
319 [ConfigureRequest] = configurerequest,
320 [ConfigureNotify] = configurenotify,
321 [DestroyNotify] = destroynotify,
322 [EnterNotify] = enternotify,
323 [Expose] = expose,
324 [FocusIn] = focusin,
325 [KeyPress] = keypress,
326 [MappingNotify] = mappingnotify,
327 [MapRequest] = maprequest,
328 [MotionNotify] = motionnotify,
329 [PropertyNotify] = propertynotify,
330 [ResizeRequest] = resizerequest,
331 [UnmapNotify] = unmapnotify
332};
333
334static Atom wmatom[WMLast], netatom[NetLast], xatom[XLast];
335static int running = 1;
336static Cur *cursor[CurLast];
337static Clr **scheme;
338static Display *dpy;
339static Drw *drw;
340static Monitor *mons, *selmon;
341static Window root, wmcheckwin;
342
343static xcb_connection_t *xcon;
344
345/* configuration, allows nested code to access above variables */
346#include "config.h"
347
348/* compile-time check if all tags fit into an unsigned int bit array. */
349struct NumTags {
350 char limitexceeded[LENGTH(tags) > 31 ? -1 : 1];
351};
352
353/* function implementations */
354void applyrules(Client *c)
355{
356 const char *class, *instance;
357 unsigned int i;
358 const Rule *r;
359 Monitor *m;
360 XClassHint ch = { NULL, NULL };
361
362 /* rule matching */
363 c->isfloating = 0;
364 c->tags = 0;
365 XGetClassHint(dpy, c->win, &ch);
366 class = ch.res_class ? ch.res_class : broken;
367 instance = ch.res_name ? ch.res_name : broken;
368
369 for (i = 0; i < LENGTH(rules); i++) {
370 r = &rules[i];
371 if ((!r->title || strstr(c->name, r->title))
372 && (!r->class || strstr(class, r->class))
373 && (!r->instance || strstr(instance, r->instance))) {
374 c->isterminal = r->isterminal;
375 c->noswallow = r->noswallow;
376 c->isfloating = r->isfloating;
377 c->tags |= r->tags;
378 for (m = mons; m && m->num != r->monitor; m = m->next) ;
379 if (m)
380 c->mon = m;
381 }
382 }
383 if (ch.res_class)
384 XFree(ch.res_class);
385 if (ch.res_name)
386 XFree(ch.res_name);
387 c->tags =
388 c->tags & TAGMASK ? c->tags & TAGMASK : c->mon->tagset[c->mon->
389 seltags];
390}
391
392int applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact)
393{
394 int baseismin;
395 Monitor *m = c->mon;
396
397 /* set minimum possible */
398 *w = MAX(1, *w);
399 *h = MAX(1, *h);
400 if (interact) {
401 if (*x > sw)
402 *x = sw - WIDTH(c);
403 if (*y > sh)
404 *y = sh - HEIGHT(c);
405 if (*x + *w + 2 * c->bw < 0)
406 *x = 0;
407 if (*y + *h + 2 * c->bw < 0)
408 *y = 0;
409 } else {
410 if (*x >= m->wx + m->ww)
411 *x = m->wx + m->ww - WIDTH(c);
412 if (*y >= m->wy + m->wh)
413 *y = m->wy + m->wh - HEIGHT(c);
414 if (*x + *w + 2 * c->bw <= m->wx)
415 *x = m->wx;
416 if (*y + *h + 2 * c->bw <= m->wy)
417 *y = m->wy;
418 }
419 if (*h < bh)
420 *h = bh;
421 if (*w < bh)
422 *w = bh;
423 if (resizehints || c->isfloating || !c->mon->lt[c->mon->sellt]->arrange) {
424 if (!c->hintsvalid)
425 updatesizehints(c);
426 /* see last two sentences in ICCCM 4.1.2.3 */
427 baseismin = c->basew == c->minw && c->baseh == c->minh;
428 if (!baseismin) { /* temporarily remove base dimensions */
429 *w -= c->basew;
430 *h -= c->baseh;
431 }
432 /* adjust for aspect limits */
433 if (c->mina > 0 && c->maxa > 0) {
434 if (c->maxa < (float)*w / *h)
435 *w = *h * c->maxa + 0.5;
436 else if (c->mina < (float)*h / *w)
437 *h = *w * c->mina + 0.5;
438 }
439 if (baseismin) { /* increment calculation requires this */
440 *w -= c->basew;
441 *h -= c->baseh;
442 }
443 /* adjust for increment value */
444 if (c->incw)
445 *w -= *w % c->incw;
446 if (c->inch)
447 *h -= *h % c->inch;
448 /* restore base dimensions */
449 *w = MAX(*w + c->basew, c->minw);
450 *h = MAX(*h + c->baseh, c->minh);
451 if (c->maxw)
452 *w = MIN(*w, c->maxw);
453 if (c->maxh)
454 *h = MIN(*h, c->maxh);
455 }
456 return *x != c->x || *y != c->y || *w != c->w || *h != c->h;
457}
458
459void arrange(Monitor *m)
460{
461 if (m)
462 showhide(m->stack);
463 else
464 for (m = mons; m; m = m->next)
465 showhide(m->stack);
466 if (m) {
467 arrangemon(m);
468 restack(m);
469 } else
470 for (m = mons; m; m = m->next)
471 arrangemon(m);
472}
473
474void arrangemon(Monitor *m)
475{
476 strncpy(m->ltsymbol, m->lt[m->sellt]->symbol, sizeof m->ltsymbol);
477 if (m->lt[m->sellt]->arrange)
478 m->lt[m->sellt]->arrange(m);
479}
480
481void attach(Client *c)
482{
483 c->next = c->mon->clients;
484 c->mon->clients = c;
485}
486
487void attachstack(Client *c)
488{
489 c->snext = c->mon->stack;
490 c->mon->stack = c;
491}
492
493void swallow(Client *p, Client *c)
494{
495
496 if (c->noswallow || c->isterminal)
497 return;
498 if (c->noswallow && !swallowfloating && c->isfloating)
499 return;
500
501 detach(c);
502 detachstack(c);
503
504 setclientstate(c, WithdrawnState);
505 XUnmapWindow(dpy, p->win);
506
507 p->swallowing = c;
508 c->mon = p->mon;
509
510 Window w = p->win;
511 p->win = c->win;
512 c->win = w;
513 updatetitle(p);
514 XMoveResizeWindow(dpy, p->win, p->x, p->y, p->w, p->h);
515 arrange(p->mon);
516 configure(p);
517 updateclientlist();
518}
519
520void unswallow(Client *c)
521{
522 c->win = c->swallowing->win;
523
524 free(c->swallowing);
525 c->swallowing = NULL;
526
527 /* unfullscreen the client */
528 setfullscreen(c, 0);
529 updatetitle(c);
530 arrange(c->mon);
531 XMapWindow(dpy, c->win);
532 XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
533 setclientstate(c, NormalState);
534 focus(NULL);
535 arrange(c->mon);
536}
537
538void buttonpress(XEvent *e)
539{
540 unsigned int i, x, click;
541 Arg arg = { 0 };
542 Client *c;
543 Monitor *m;
544 XButtonPressedEvent *ev = &e->xbutton;
545
546 click = ClkRootWin;
547 /* focus monitor if necessary */
548 if ((m = wintomon(ev->window)) && m != selmon) {
549 unfocus(selmon->sel, 1);
550 selmon = m;
551 focus(NULL);
552 }
553 if (ev->window == selmon->barwin) {
554 i = x = 0;
555 unsigned int occ = 0;
556 for(c = m->clients; c; c=c->next)
557 occ |= c->tags;
558 do {
559 /* Do not reserve space for vacant tags */
560 if (!(occ & 1 << i || m->tagset[m->seltags] & 1 << i))
561 continue;
562 x += TEXTW(tags[i]);
563 } while (ev->x >= x && ++i < LENGTH(tags));
564 if (i < LENGTH(tags)) {
565 click = ClkTagBar;
566 arg.ui = 1 << i;
567 } else if (ev->x < x + TEXTW(selmon->ltsymbol))
568 click = ClkLtSymbol;
569 else if (ev->x >
570 selmon->ww - (int)TEXTW(stext) - getsystraywidth())
571 click = ClkStatusText;
572 else
573 click = ClkWinTitle;
574 } else if ((c = wintoclient(ev->window))) {
575 focus(c);
576 restack(selmon);
577 XAllowEvents(dpy, ReplayPointer, CurrentTime);
578 click = ClkClientWin;
579 }
580 for (i = 0; i < LENGTH(buttons); i++)
581 if (click == buttons[i].click && buttons[i].func
582 && buttons[i].button == ev->button
583 && CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
584 buttons[i].func(click == ClkTagBar
585 && buttons[i].arg.i ==
586 0 ? &arg : &buttons[i].arg);
587}
588
589void checkotherwm(void)
590{
591 xerrorxlib = XSetErrorHandler(xerrorstart);
592 /* this causes an error if some other window manager is running */
593 XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask);
594 XSync(dpy, False);
595 XSetErrorHandler(xerror);
596 XSync(dpy, False);
597}
598
599void cleanup(void)
600{
601 Arg a = {.ui = ~0 };
602 Layout foo = { "", NULL };
603 Monitor *m;
604 size_t i;
605
606 view(&a);
607 selmon->lt[selmon->sellt] = &foo;
608 for (m = mons; m; m = m->next)
609 while (m->stack)
610 unmanage(m->stack, 0);
611 XUngrabKey(dpy, AnyKey, AnyModifier, root);
612 while (mons)
613 cleanupmon(mons);
614
615 if (showsystray) {
616 XUnmapWindow(dpy, systray->win);
617 XDestroyWindow(dpy, systray->win);
618 free(systray);
619 }
620
621 for (i = 0; i < CurLast; i++)
622 drw_cur_free(drw, cursor[i]);
623 for (i = 0; i < LENGTH(colors); i++)
624 free(scheme[i]);
625 free(scheme);
626 XDestroyWindow(dpy, wmcheckwin);
627 drw_free(drw);
628 XSync(dpy, False);
629 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
630 XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
631}
632
633void cleanupmon(Monitor *mon)
634{
635 Monitor *m;
636
637 if (mon == mons)
638 mons = mons->next;
639 else {
640 for (m = mons; m && m->next != mon; m = m->next) ;
641 m->next = mon->next;
642 }
643 XUnmapWindow(dpy, mon->barwin);
644 XDestroyWindow(dpy, mon->barwin);
645 free(mon);
646}
647
648void clientmessage(XEvent *e)
649{
650 XWindowAttributes wa;
651 XSetWindowAttributes swa;
652 XClientMessageEvent *cme = &e->xclient;
653 Client *c = wintoclient(cme->window);
654
655 if (showsystray && cme->window == systray->win
656 && cme->message_type == netatom[NetSystemTrayOP]) {
657 /* add systray icons */
658 if (cme->data.l[1] == SYSTEM_TRAY_REQUEST_DOCK) {
659 if (!(c = (Client *) calloc(1, sizeof(Client))))
660 die("fatal: could not malloc() %u bytes\n",
661 sizeof(Client));
662 if (!(c->win = cme->data.l[2])) {
663 free(c);
664 return;
665 }
666 c->mon = selmon;
667 c->next = systray->icons;
668 systray->icons = c;
669 if (!XGetWindowAttributes(dpy, c->win, &wa)) {
670 /* use sane defaults */
671 wa.width = bh;
672 wa.height = bh;
673 wa.border_width = 0;
674 }
675 c->x = c->oldx = c->y = c->oldy = 0;
676 c->w = c->oldw = wa.width;
677 c->h = c->oldh = wa.height;
678 c->oldbw = wa.border_width;
679 c->bw = 0;
680 c->isfloating = True;
681 /* reuse tags field as mapped status */
682 c->tags = 1;
683 updatesizehints(c);
684 updatesystrayicongeom(c, wa.width, wa.height);
685 XAddToSaveSet(dpy, c->win);
686 XSelectInput(dpy, c->win,
687 StructureNotifyMask | PropertyChangeMask |
688 ResizeRedirectMask);
689 XReparentWindow(dpy, c->win, systray->win, 0, 0);
690 /* use parents background color */
691 swa.background_pixel = scheme[SchemeNorm][ColBg].pixel;
692 XChangeWindowAttributes(dpy, c->win, CWBackPixel, &swa);
693 sendevent(c->win, netatom[Xembed], StructureNotifyMask,
694 CurrentTime, XEMBED_EMBEDDED_NOTIFY, 0,
695 systray->win, XEMBED_EMBEDDED_VERSION);
696 /* FIXME not sure if I have to send these events, too */
697 sendevent(c->win, netatom[Xembed], StructureNotifyMask,
698 CurrentTime, XEMBED_FOCUS_IN, 0, systray->win,
699 XEMBED_EMBEDDED_VERSION);
700 sendevent(c->win, netatom[Xembed], StructureNotifyMask,
701 CurrentTime, XEMBED_WINDOW_ACTIVATE, 0,
702 systray->win, XEMBED_EMBEDDED_VERSION);
703 sendevent(c->win, netatom[Xembed], StructureNotifyMask,
704 CurrentTime, XEMBED_MODALITY_ON, 0,
705 systray->win, XEMBED_EMBEDDED_VERSION);
706 XSync(dpy, False);
707 resizebarwin(selmon);
708 updatesystray();
709 setclientstate(c, NormalState);
710 }
711 return;
712 }
713
714 if (!c)
715 return;
716 if (cme->message_type == netatom[NetWMState]) {
717 if (cme->data.l[1] == netatom[NetWMFullscreen]
718 || cme->data.l[2] == netatom[NetWMFullscreen])
719 setfullscreen(c, (cme->data.l[0] == 1 /* _NET_WM_STATE_ADD */
720 || (cme->data.l[0] ==
721 2 /* _NET_WM_STATE_TOGGLE */
722 && !c->isfullscreen)));
723 } else if (cme->message_type == netatom[NetActiveWindow]) {
724 if (c != selmon->sel && !c->isurgent)
725 seturgent(c, 1);
726 }
727}
728
729void configure(Client *c)
730{
731 XConfigureEvent ce;
732
733 ce.type = ConfigureNotify;
734 ce.display = dpy;
735 ce.event = c->win;
736 ce.window = c->win;
737 ce.x = c->x;
738 ce.y = c->y;
739 ce.width = c->w;
740 ce.height = c->h;
741 ce.border_width = c->bw;
742 ce.above = None;
743 ce.override_redirect = False;
744 XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *) & ce);
745}
746
747void configurenotify(XEvent *e)
748{
749 Monitor *m;
750 Client *c;
751 XConfigureEvent *ev = &e->xconfigure;
752 int dirty;
753
754 /* TODO: updategeom handling sucks, needs to be simplified */
755 if (ev->window == root) {
756 dirty = (sw != ev->width || sh != ev->height);
757 sw = ev->width;
758 sh = ev->height;
759 if (updategeom() || dirty) {
760 drw_resize(drw, sw, bh);
761 updatebars();
762 for (m = mons; m; m = m->next) {
763 for (c = m->clients; c; c = c->next)
764 if (c->isfullscreen)
765 resizeclient(c, m->mx, m->my,
766 m->mw, m->mh);
767 resizebarwin(m);
768 }
769 focus(NULL);
770 arrange(NULL);
771 }
772 }
773}
774
775void configurerequest(XEvent *e)
776{
777 Client *c;
778 Monitor *m;
779 XConfigureRequestEvent *ev = &e->xconfigurerequest;
780 XWindowChanges wc;
781
782 if ((c = wintoclient(ev->window))) {
783 if (ev->value_mask & CWBorderWidth)
784 c->bw = ev->border_width;
785 else if (c->isfloating || !selmon->lt[selmon->sellt]->arrange) {
786 m = c->mon;
787 if (ev->value_mask & CWX) {
788 c->oldx = c->x;
789 c->x = m->mx + ev->x;
790 }
791 if (ev->value_mask & CWY) {
792 c->oldy = c->y;
793 c->y = m->my + ev->y;
794 }
795 if (ev->value_mask & CWWidth) {
796 c->oldw = c->w;
797 c->w = ev->width;
798 }
799 if (ev->value_mask & CWHeight) {
800 c->oldh = c->h;
801 c->h = ev->height;
802 }
803 if ((c->x + c->w) > m->mx + m->mw && c->isfloating)
804 c->x = m->mx + (m->mw / 2 - WIDTH(c) / 2); /* center in x direction */
805 if ((c->y + c->h) > m->my + m->mh && c->isfloating)
806 c->y = m->my + (m->mh / 2 - HEIGHT(c) / 2); /* center in y direction */
807 if ((ev->value_mask & (CWX | CWY))
808 && !(ev->value_mask & (CWWidth | CWHeight)))
809 configure(c);
810 if (ISVISIBLE(c))
811 XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w,
812 c->h);
813 } else
814 configure(c);
815 } else {
816 wc.x = ev->x;
817 wc.y = ev->y;
818 wc.width = ev->width;
819 wc.height = ev->height;
820 wc.border_width = ev->border_width;
821 wc.sibling = ev->above;
822 wc.stack_mode = ev->detail;
823 XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
824 }
825 XSync(dpy, False);
826}
827
828Monitor *createmon(void)
829{
830 Monitor *m;
831
832 m = ecalloc(1, sizeof(Monitor));
833 m->tagset[0] = m->tagset[1] = 1;
834 m->mfact = mfact;
835 m->nmaster = nmaster;
836 m->showbar = showbar;
837 m->topbar = topbar;
838 m->gappih = gappih;
839 m->gappiv = gappiv;
840 m->gappoh = gappoh;
841 m->gappov = gappov;
842 m->lt[0] = &layouts[0];
843 m->lt[1] = &layouts[1 % LENGTH(layouts)];
844 strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol);
845 return m;
846}
847
848void destroynotify(XEvent *e)
849{
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{
865 Client **tc;
866
867 for (tc = &c->mon->clients; *tc && *tc != c; tc = &(*tc)->next) ;
868 *tc = c->next;
869}
870
871void detachstack(Client *c)
872{
873 Client **tc, *t;
874
875 for (tc = &c->mon->stack; *tc && *tc != c; tc = &(*tc)->snext) ;
876 *tc = c->snext;
877
878 if (c == c->mon->sel) {
879 for (t = c->mon->stack; t && !ISVISIBLE(t); t = t->snext) ;
880 c->mon->sel = t;
881 }
882}
883
884Monitor *dirtomon(int dir)
885{
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 else
894 for (m = mons; m->next != selmon; m = m->next) ;
895 return m;
896}
897
898void drawbar(Monitor *m)
899{
900 int x, w, tw = 0, stw = 0;
901 int boxs = drw->fonts->h / 9;
902 int boxw = drw->fonts->h / 6 + 2;
903 unsigned int i, occ = 0, urg = 0;
904 Client *c;
905
906 if (!m->showbar)
907 return;
908
909 if (showsystray && m == systraytomon(m) && !systrayonleft)
910 stw = getsystraywidth();
911
912 /* draw status first so it can be overdrawn by tags later */
913 if (m == selmon) { /* status is only drawn on selected monitor */
914 drw_setscheme(drw, scheme[SchemeNorm]);
915 tw = TEXTW(stext) - lrpad / 2 + 2; /* 2px extra right padding */
916 drw_text(drw, m->ww - tw - stw, 0, tw, bh, lrpad / 2 - 2, stext,
917 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(drw,
933 scheme[m->
934 tagset[m->
935 seltags] & 1 << i ? SchemeSel :
936 SchemeNorm]);
937 drw_text(drw, x, 0, w, bh, lrpad / 2, tags[i], urg & 1 << i);
938 if (occ & 1 << i)
939 drw_rect(drw, x + boxs, boxs, boxw, boxw,
940 m == selmon && selmon->sel
941 && selmon->sel->tags & 1 << i, urg & 1 << i);
942 x += w;
943 }
944 w = TEXTW(m->ltsymbol);
945 drw_setscheme(drw, scheme[SchemeNorm]);
946 x = drw_text(drw, x, 0, w, bh, lrpad / 2, m->ltsymbol, 0);
947
948 if ((w = m->ww - tw - stw - x) > bh) {
949 if (m->sel) {
950 drw_setscheme(drw,
951 scheme[m ==
952 selmon ? SchemeSel : SchemeNorm]);
953 drw_text(drw, x, 0, w, bh, lrpad / 2, m->sel->name, 0);
954 if (m->sel->isfloating)
955 drw_rect(drw, x + boxs, boxs, boxw, boxw,
956 m->sel->isfixed, 0);
957 } else {
958 drw_setscheme(drw, scheme[SchemeNorm]);
959 drw_rect(drw, x, 0, w, bh, 1, 1);
960 }
961 }
962 drw_map(drw, m->barwin, 0, 0, m->ww - stw, bh);
963}
964
965void drawbars(void)
966{
967 Monitor *m;
968
969 for (m = mons; m; m = m->next)
970 drawbar(m);
971}
972
973void enternotify(XEvent *e)
974{
975 Client *c;
976 Monitor *m;
977 XCrossingEvent *ev = &e->xcrossing;
978
979 if ((ev->mode != NotifyNormal || ev->detail == NotifyInferior)
980 && ev->window != root)
981 return;
982 c = wintoclient(ev->window);
983 m = c ? c->mon : wintomon(ev->window);
984 if (m != selmon) {
985 unfocus(selmon->sel, 1);
986 selmon = m;
987 } else if (!c || c == selmon->sel)
988 return;
989 focus(c);
990}
991
992void expose(XEvent *e)
993{
994 Monitor *m;
995 XExposeEvent *ev = &e->xexpose;
996
997 if (ev->count == 0 && (m = wintomon(ev->window))) {
998 drawbar(m);
999 if (m == selmon)
1000 updatesystray();
1001 }
1002}
1003
1004void focus(Client *c)
1005{
1006 if (!c || !ISVISIBLE(c))
1007 for (c = selmon->stack; c && !ISVISIBLE(c); c = c->snext) ;
1008 if (selmon->sel && selmon->sel != c)
1009 unfocus(selmon->sel, 0);
1010 if (c) {
1011 if (c->mon != selmon)
1012 selmon = c->mon;
1013 if (c->isurgent)
1014 seturgent(c, 0);
1015 detachstack(c);
1016 attachstack(c);
1017 grabbuttons(c, 1);
1018 XSetWindowBorder(dpy, c->win,
1019 scheme[SchemeSel][ColBorder].pixel);
1020 setfocus(c);
1021 } else {
1022 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
1023 XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
1024 }
1025 selmon->sel = c;
1026 drawbars();
1027}
1028
1029/* there are some broken focus acquiring clients needing extra handling */
1030void focusin(XEvent *e)
1031{
1032 XFocusChangeEvent *ev = &e->xfocus;
1033
1034 if (selmon->sel && ev->window != selmon->sel->win)
1035 setfocus(selmon->sel);
1036}
1037
1038void focusmon(const Arg *arg)
1039{
1040 Monitor *m;
1041
1042 if (!mons->next)
1043 return;
1044 if ((m = dirtomon(arg->i)) == selmon)
1045 return;
1046 unfocus(selmon->sel, 0);
1047 selmon = m;
1048 focus(NULL);
1049}
1050
1051void focusstack(const Arg *arg)
1052{
1053 Client *c = NULL, *i;
1054
1055 if (!selmon->sel || (selmon->sel->isfullscreen && lockfullscreen))
1056 return;
1057 if (arg->i > 0) {
1058 for (c = selmon->sel->next; c && !ISVISIBLE(c); c = c->next) ;
1059 if (!c)
1060 for (c = selmon->clients; c && !ISVISIBLE(c);
1061 c = c->next) ;
1062 } else {
1063 for (i = selmon->clients; i != selmon->sel; i = i->next)
1064 if (ISVISIBLE(i))
1065 c = i;
1066 if (!c)
1067 for (; i; i = i->next)
1068 if (ISVISIBLE(i))
1069 c = i;
1070 }
1071 if (c) {
1072 focus(c);
1073 restack(selmon);
1074 }
1075}
1076
1077Atom getatomprop(Client *c, Atom prop)
1078{
1079 int di;
1080 unsigned long dl;
1081 unsigned char *p = NULL;
1082 Atom da, atom = None;
1083
1084 /* FIXME getatomprop should return the number of items and a pointer to
1085 * the stored data instead of this workaround */
1086 Atom req = XA_ATOM;
1087 if (prop == xatom[XembedInfo])
1088 req = xatom[XembedInfo];
1089
1090 if (XGetWindowProperty(dpy, c->win, prop, 0L, sizeof atom, False, req,
1091 &da, &di, &dl, &dl, &p) == Success && p) {
1092 atom = *(Atom *) p;
1093 if (da == xatom[XembedInfo] && dl == 2)
1094 atom = ((Atom *) p)[1];
1095 XFree(p);
1096 }
1097 return atom;
1098}
1099
1100unsigned int getsystraywidth()
1101{
1102 unsigned int w = 0;
1103 Client *i;
1104 if (showsystray)
1105 for (i = systray->icons; i;
1106 w += i->w + systrayspacing, i = i->next) ;
1107 return w ? w + systrayspacing : 1;
1108}
1109
1110int getrootptr(int *x, int *y)
1111{
1112 int di;
1113 unsigned int dui;
1114 Window dummy;
1115
1116 return XQueryPointer(dpy, root, &dummy, &dummy, x, y, &di, &di, &dui);
1117}
1118
1119long getstate(Window w)
1120{
1121 int format;
1122 long result = -1;
1123 unsigned char *p = NULL;
1124 unsigned long n, extra;
1125 Atom real;
1126
1127 if (XGetWindowProperty
1128 (dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState], &real,
1129 &format, &n, &extra, (unsigned char **)&p) != Success)
1130 return -1;
1131 if (n != 0)
1132 result = *p;
1133 XFree(p);
1134 return result;
1135}
1136
1137int gettextprop(Window w, Atom atom, char *text, unsigned int size)
1138{
1139 char **list = NULL;
1140 int n;
1141 XTextProperty name;
1142
1143 if (!text || size == 0)
1144 return 0;
1145 text[0] = '\0';
1146 if (!XGetTextProperty(dpy, w, &name, atom) || !name.nitems)
1147 return 0;
1148 if (name.encoding == XA_STRING) {
1149 strncpy(text, (char *)name.value, size - 1);
1150 } else if (XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success
1151 && n > 0 && *list) {
1152 strncpy(text, *list, size - 1);
1153 XFreeStringList(list);
1154 }
1155 text[size - 1] = '\0';
1156 XFree(name.value);
1157 return 1;
1158}
1159
1160void grabbuttons(Client *c, int focused)
1161{
1162 updatenumlockmask();
1163 {
1164 unsigned int i, j;
1165 unsigned int modifiers[] =
1166 { 0, LockMask, numlockmask, numlockmask | LockMask };
1167 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
1168 if (!focused)
1169 XGrabButton(dpy, AnyButton, AnyModifier, c->win, False,
1170 BUTTONMASK, GrabModeSync, GrabModeSync,
1171 None, None);
1172 for (i = 0; i < LENGTH(buttons); i++)
1173 if (buttons[i].click == ClkClientWin)
1174 for (j = 0; j < LENGTH(modifiers); j++)
1175 XGrabButton(dpy, buttons[i].button,
1176 buttons[i].
1177 mask | modifiers[j], c->win,
1178 False, BUTTONMASK,
1179 GrabModeAsync, GrabModeSync,
1180 None, None);
1181 }
1182}
1183
1184void grabkeys(void)
1185{
1186 updatenumlockmask();
1187 {
1188 unsigned int i, j, k;
1189 unsigned int modifiers[] =
1190 { 0, LockMask, numlockmask, numlockmask | LockMask };
1191 int start, end, skip;
1192 KeySym *syms;
1193
1194 XUngrabKey(dpy, AnyKey, AnyModifier, root);
1195 XDisplayKeycodes(dpy, &start, &end);
1196 syms = XGetKeyboardMapping(dpy, start, end - start + 1, &skip);
1197 if (!syms)
1198 return;
1199 for (k = start; k <= end; k++)
1200 for (i = 0; i < LENGTH(keys); i++)
1201 /* skip modifier codes, we do that ourselves */
1202 if (keys[i].keysym == syms[(k - start) * skip])
1203 for (j = 0; j < LENGTH(modifiers); j++)
1204 XGrabKey(dpy, k,
1205 keys[i].
1206 mod | modifiers[j],
1207 root, True,
1208 GrabModeAsync,
1209 GrabModeAsync);
1210 XFree(syms);
1211 }
1212}
1213
1214void incnmaster(const Arg *arg)
1215{
1216 selmon->nmaster = MAX(selmon->nmaster + arg->i, 0);
1217 arrange(selmon);
1218}
1219
1220#ifdef XINERAMA
1221static int
1222isuniquegeom(XineramaScreenInfo *unique, size_t n, XineramaScreenInfo *info)
1223{
1224 while (n--)
1225 if (unique[n].x_org == info->x_org
1226 && unique[n].y_org == info->y_org
1227 && unique[n].width == info->width
1228 && unique[n].height == info->height)
1229 return 0;
1230 return 1;
1231}
1232#endif /* XINERAMA */
1233
1234void keypress(XEvent *e)
1235{
1236 unsigned int i;
1237 KeySym keysym;
1238 XKeyEvent *ev;
1239
1240 ev = &e->xkey;
1241 keysym = XKeycodeToKeysym(dpy, (KeyCode) ev->keycode, 0);
1242 for (i = 0; i < LENGTH(keys); i++)
1243 if (keysym == keys[i].keysym
1244 && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
1245 && keys[i].func)
1246 keys[i].func(&(keys[i].arg));
1247}
1248
1249void killclient(const Arg *arg)
1250{
1251 if (!selmon->sel)
1252 return;
1253
1254 if (!sendevent
1255 (selmon->sel->win, wmatom[WMDelete], NoEventMask, wmatom[WMDelete],
1256 CurrentTime, 0, 0, 0)) {
1257 XGrabServer(dpy);
1258 XSetErrorHandler(xerrordummy);
1259 XSetCloseDownMode(dpy, DestroyAll);
1260 XKillClient(dpy, selmon->sel->win);
1261 XSync(dpy, False);
1262 XSetErrorHandler(xerror);
1263 XUngrabServer(dpy);
1264 }
1265}
1266
1267void manage(Window w, XWindowAttributes *wa)
1268{
1269 Client *c, *t = NULL, *term = NULL;
1270 Window trans = None;
1271 XWindowChanges wc;
1272
1273 c = ecalloc(1, sizeof(Client));
1274 c->win = w;
1275 c->pid = winpid(w);
1276 /* geometry */
1277 c->x = c->oldx = wa->x;
1278 c->y = c->oldy = wa->y;
1279 c->w = c->oldw = wa->width;
1280 c->h = c->oldh = wa->height;
1281 c->oldbw = wa->border_width;
1282
1283 updatetitle(c);
1284 if (XGetTransientForHint(dpy, w, &trans) && (t = wintoclient(trans))) {
1285 c->mon = t->mon;
1286 c->tags = t->tags;
1287 } else {
1288 c->mon = selmon;
1289 applyrules(c);
1290 term = termforwin(c);
1291 }
1292
1293 if (c->x + WIDTH(c) > c->mon->wx + c->mon->ww)
1294 c->x = c->mon->wx + c->mon->ww - WIDTH(c);
1295 if (c->y + HEIGHT(c) > c->mon->wy + c->mon->wh)
1296 c->y = c->mon->wy + c->mon->wh - HEIGHT(c);
1297 c->x = MAX(c->x, c->mon->wx);
1298 c->y = MAX(c->y, c->mon->wy);
1299 c->bw = borderpx;
1300
1301 wc.border_width = c->bw;
1302 XConfigureWindow(dpy, w, CWBorderWidth, &wc);
1303 XSetWindowBorder(dpy, w, scheme[SchemeNorm][ColBorder].pixel);
1304 configure(c); /* propagates border_width, if size doesn't change */
1305 updatewindowtype(c);
1306 updatesizehints(c);
1307 updatewmhints(c);
1308 XSelectInput(dpy, w,
1309 EnterWindowMask | FocusChangeMask | PropertyChangeMask |
1310 StructureNotifyMask);
1311 grabbuttons(c, 0);
1312 if (!c->isfloating)
1313 c->isfloating = c->oldstate = trans != None || c->isfixed;
1314 if (c->isfloating)
1315 XRaiseWindow(dpy, c->win);
1316 attach(c);
1317 attachstack(c);
1318 XChangeProperty(dpy, root, netatom[NetClientList], XA_WINDOW, 32,
1319 PropModeAppend, (unsigned char *)&(c->win), 1);
1320 XMoveResizeWindow(dpy, c->win, c->x + 2 * sw, c->y, c->w, c->h); /* some windows require this */
1321 setclientstate(c, NormalState);
1322 if (c->mon == selmon)
1323 unfocus(selmon->sel, 0);
1324 c->mon->sel = c;
1325 arrange(c->mon);
1326 XMapWindow(dpy, c->win);
1327 if (term)
1328 swallow(term, c);
1329 focus(NULL);
1330}
1331
1332void mappingnotify(XEvent *e)
1333{
1334 XMappingEvent *ev = &e->xmapping;
1335
1336 XRefreshKeyboardMapping(ev);
1337 if (ev->request == MappingKeyboard)
1338 grabkeys();
1339}
1340
1341void maprequest(XEvent *e)
1342{
1343 static XWindowAttributes wa;
1344 XMapRequestEvent *ev = &e->xmaprequest;
1345
1346 Client *i;
1347 if ((i = wintosystrayicon(ev->window))) {
1348 sendevent(i->win, netatom[Xembed], StructureNotifyMask,
1349 CurrentTime, XEMBED_WINDOW_ACTIVATE, 0, systray->win,
1350 XEMBED_EMBEDDED_VERSION);
1351 resizebarwin(selmon);
1352 updatesystray();
1353 }
1354
1355 if (!XGetWindowAttributes(dpy, ev->window, &wa) || wa.override_redirect)
1356 return;
1357 if (!wintoclient(ev->window))
1358 manage(ev->window, &wa);
1359}
1360
1361void monocle(Monitor *m)
1362{
1363 unsigned int n = 0;
1364 Client *c;
1365
1366 for (c = m->clients; c; c = c->next)
1367 if (ISVISIBLE(c))
1368 n++;
1369 if (n > 0) /* override layout symbol */
1370 snprintf(m->ltsymbol, sizeof m->ltsymbol, "[%d]", n);
1371 for (c = nexttiled(m->clients); c; c = nexttiled(c->next))
1372 resize(c, m->wx, m->wy, m->ww - 2 * c->bw, m->wh - 2 * c->bw,
1373 0);
1374}
1375
1376void motionnotify(XEvent *e)
1377{
1378 static Monitor *mon = NULL;
1379 Monitor *m;
1380 XMotionEvent *ev = &e->xmotion;
1381
1382 if (ev->window != root)
1383 return;
1384 if ((m = recttomon(ev->x_root, ev->y_root, 1, 1)) != mon && mon) {
1385 unfocus(selmon->sel, 1);
1386 selmon = m;
1387 focus(NULL);
1388 }
1389 mon = m;
1390}
1391
1392void movemouse(const Arg *arg)
1393{
1394 int x, y, ocx, ocy, nx, ny;
1395 Client *c;
1396 Monitor *m;
1397 XEvent ev;
1398 Time lasttime = 0;
1399
1400 if (!(c = selmon->sel))
1401 return;
1402 if (c->isfullscreen) /* no support moving fullscreen windows by mouse */
1403 return;
1404 restack(selmon);
1405 ocx = c->x;
1406 ocy = c->y;
1407 if (XGrabPointer
1408 (dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync, None,
1409 cursor[CurMove]->cursor, CurrentTime) != GrabSuccess)
1410 return;
1411 if (!getrootptr(&x, &y))
1412 return;
1413 do {
1414 XMaskEvent(dpy,
1415 MOUSEMASK | ExposureMask | SubstructureRedirectMask,
1416 &ev);
1417 switch (ev.type) {
1418 case ConfigureRequest:
1419 case Expose:
1420 case MapRequest:
1421 handler[ev.type] (&ev);
1422 break;
1423 case MotionNotify:
1424 if ((ev.xmotion.time - lasttime) <= (1000 / 60))
1425 continue;
1426 lasttime = ev.xmotion.time;
1427
1428 nx = ocx + (ev.xmotion.x - x);
1429 ny = ocy + (ev.xmotion.y - y);
1430 if (abs(selmon->wx - nx) < snap)
1431 nx = selmon->wx;
1432 else if (abs
1433 ((selmon->wx + selmon->ww) - (nx + WIDTH(c))) <
1434 snap)
1435 nx = selmon->wx + selmon->ww - WIDTH(c);
1436 if (abs(selmon->wy - ny) < snap)
1437 ny = selmon->wy;
1438 else if (abs
1439 ((selmon->wy + selmon->wh) -
1440 (ny + HEIGHT(c))) < snap)
1441 ny = selmon->wy + selmon->wh - HEIGHT(c);
1442 if (!c->isfloating && selmon->lt[selmon->sellt]->arrange
1443 && (abs(nx - c->x) > snap || abs(ny - c->y) > snap))
1444 togglefloating(NULL);
1445 if (!selmon->lt[selmon->sellt]->arrange
1446 || c->isfloating)
1447 resize(c, nx, ny, c->w, c->h, 1);
1448 break;
1449 }
1450 } while (ev.type != ButtonRelease);
1451 XUngrabPointer(dpy, CurrentTime);
1452 if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) {
1453 sendmon(c, m);
1454 selmon = m;
1455 focus(NULL);
1456 }
1457}
1458
1459Client *nexttiled(Client *c)
1460{
1461 for (; c && (c->isfloating || !ISVISIBLE(c)); c = c->next) ;
1462 return c;
1463}
1464
1465void pop(Client *c)
1466{
1467 detach(c);
1468 attach(c);
1469 focus(c);
1470 arrange(c->mon);
1471}
1472
1473void propertynotify(XEvent *e)
1474{
1475 Client *c;
1476 Window trans;
1477 XPropertyEvent *ev = &e->xproperty;
1478
1479 if ((c = wintosystrayicon(ev->window))) {
1480 if (ev->atom == XA_WM_NORMAL_HINTS) {
1481 updatesizehints(c);
1482 updatesystrayicongeom(c, c->w, c->h);
1483 } else
1484 updatesystrayiconstate(c, ev);
1485 resizebarwin(selmon);
1486 updatesystray();
1487 }
1488
1489 if ((ev->window == root) && (ev->atom == XA_WM_NAME))
1490 updatestatus();
1491 else if (ev->state == PropertyDelete)
1492 return; /* ignore */
1493 else if ((c = wintoclient(ev->window))) {
1494 switch (ev->atom) {
1495 default:
1496 break;
1497 case XA_WM_TRANSIENT_FOR:
1498 if (!c->isfloating
1499 && (XGetTransientForHint(dpy, c->win, &trans))
1500 && (c->isfloating = (wintoclient(trans)) != NULL))
1501 arrange(c->mon);
1502 break;
1503 case XA_WM_NORMAL_HINTS:
1504 c->hintsvalid = 0;
1505 break;
1506 case XA_WM_HINTS:
1507 updatewmhints(c);
1508 drawbars();
1509 break;
1510 }
1511 if (ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
1512 updatetitle(c);
1513 if (c == c->mon->sel)
1514 drawbar(c->mon);
1515 }
1516 if (ev->atom == netatom[NetWMWindowType])
1517 updatewindowtype(c);
1518 }
1519}
1520
1521void quit(const Arg *arg)
1522{
1523 running = 0;
1524}
1525
1526Monitor *recttomon(int x, int y, int w, int h)
1527{
1528 Monitor *m, *r = selmon;
1529 int a, area = 0;
1530
1531 for (m = mons; m; m = m->next)
1532 if ((a = INTERSECT(x, y, w, h, m)) > area) {
1533 area = a;
1534 r = m;
1535 }
1536 return r;
1537}
1538
1539void removesystrayicon(Client *i)
1540{
1541 Client **ii;
1542
1543 if (!showsystray || !i)
1544 return;
1545 for (ii = &systray->icons; *ii && *ii != i; ii = &(*ii)->next) ;
1546 if (ii)
1547 *ii = i->next;
1548 free(i);
1549}
1550
1551void resize(Client *c, int x, int y, int w, int h, int interact)
1552{
1553 if (applysizehints(c, &x, &y, &w, &h, interact))
1554 resizeclient(c, x, y, w, h);
1555}
1556
1557void resizebarwin(Monitor *m)
1558{
1559 unsigned int w = m->ww;
1560 if (showsystray && m == systraytomon(m) && !systrayonleft)
1561 w -= getsystraywidth();
1562 XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, w, bh);
1563}
1564
1565void resizeclient(Client *c, int x, int y, int w, int h)
1566{
1567 XWindowChanges wc;
1568
1569 c->oldx = c->x;
1570 c->x = wc.x = x;
1571 c->oldy = c->y;
1572 c->y = wc.y = y;
1573 c->oldw = c->w;
1574 c->w = wc.width = w;
1575 c->oldh = c->h;
1576 c->h = wc.height = h;
1577 wc.border_width = c->bw;
1578 XConfigureWindow(dpy, c->win,
1579 CWX | CWY | CWWidth | CWHeight | CWBorderWidth, &wc);
1580 configure(c);
1581 XSync(dpy, False);
1582}
1583
1584void resizerequest(XEvent *e)
1585{
1586 XResizeRequestEvent *ev = &e->xresizerequest;
1587 Client *i;
1588
1589 if ((i = wintosystrayicon(ev->window))) {
1590 updatesystrayicongeom(i, ev->width, ev->height);
1591 resizebarwin(selmon);
1592 updatesystray();
1593 }
1594}
1595
1596void resizemouse(const Arg *arg)
1597{
1598 int ocx, ocy, nw, nh;
1599 Client *c;
1600 Monitor *m;
1601 XEvent ev;
1602 Time lasttime = 0;
1603
1604 if (!(c = selmon->sel))
1605 return;
1606 if (c->isfullscreen) /* no support resizing fullscreen windows by mouse */
1607 return;
1608 restack(selmon);
1609 ocx = c->x;
1610 ocy = c->y;
1611 if (XGrabPointer
1612 (dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync, None,
1613 cursor[CurResize]->cursor, CurrentTime) != GrabSuccess)
1614 return;
1615 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1,
1616 c->h + c->bw - 1);
1617 do {
1618 XMaskEvent(dpy,
1619 MOUSEMASK | ExposureMask | SubstructureRedirectMask,
1620 &ev);
1621 switch (ev.type) {
1622 case ConfigureRequest:
1623 case Expose:
1624 case MapRequest:
1625 handler[ev.type] (&ev);
1626 break;
1627 case MotionNotify:
1628 if ((ev.xmotion.time - lasttime) <= (1000 / 60))
1629 continue;
1630 lasttime = ev.xmotion.time;
1631
1632 nw = MAX(ev.xmotion.x - ocx - 2 * c->bw + 1, 1);
1633 nh = MAX(ev.xmotion.y - ocy - 2 * c->bw + 1, 1);
1634 if (c->mon->wx + nw >= selmon->wx
1635 && c->mon->wx + nw <= selmon->wx + selmon->ww
1636 && c->mon->wy + nh >= selmon->wy
1637 && c->mon->wy + nh <= selmon->wy + selmon->wh) {
1638 if (!c->isfloating
1639 && selmon->lt[selmon->sellt]->arrange
1640 && (abs(nw - c->w) > snap
1641 || abs(nh - c->h) > snap))
1642 togglefloating(NULL);
1643 }
1644 if (!selmon->lt[selmon->sellt]->arrange
1645 || c->isfloating)
1646 resize(c, c->x, c->y, nw, nh, 1);
1647 break;
1648 }
1649 } while (ev.type != ButtonRelease);
1650 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1,
1651 c->h + c->bw - 1);
1652 XUngrabPointer(dpy, CurrentTime);
1653 while (XCheckMaskEvent(dpy, EnterWindowMask, &ev)) ;
1654 if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) {
1655 sendmon(c, m);
1656 selmon = m;
1657 focus(NULL);
1658 }
1659}
1660
1661void restack(Monitor *m)
1662{
1663 Client *c;
1664 XEvent ev;
1665 XWindowChanges wc;
1666
1667 drawbar(m);
1668 if (!m->sel)
1669 return;
1670 if (m->sel->isfloating || !m->lt[m->sellt]->arrange)
1671 XRaiseWindow(dpy, m->sel->win);
1672 if (m->lt[m->sellt]->arrange) {
1673 wc.stack_mode = Below;
1674 wc.sibling = m->barwin;
1675 for (c = m->stack; c; c = c->snext)
1676 if (!c->isfloating && ISVISIBLE(c)) {
1677 XConfigureWindow(dpy, c->win,
1678 CWSibling | CWStackMode, &wc);
1679 wc.sibling = c->win;
1680 }
1681 }
1682 XSync(dpy, False);
1683 while (XCheckMaskEvent(dpy, EnterWindowMask, &ev)) ;
1684}
1685
1686void run(void)
1687{
1688 XEvent ev;
1689 /* main event loop */
1690 XSync(dpy, False);
1691 while (running && !XNextEvent(dpy, &ev))
1692 if (handler[ev.type])
1693 handler[ev.type] (&ev); /* call handler */
1694}
1695
1696void scan(void)
1697{
1698 unsigned int i, num;
1699 Window d1, d2, *wins = NULL;
1700 XWindowAttributes wa;
1701
1702 if (XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
1703 for (i = 0; i < num; i++) {
1704 if (!XGetWindowAttributes(dpy, wins[i], &wa)
1705 || wa.override_redirect
1706 || XGetTransientForHint(dpy, wins[i], &d1))
1707 continue;
1708 if (wa.map_state == IsViewable
1709 || getstate(wins[i]) == IconicState)
1710 manage(wins[i], &wa);
1711 }
1712 for (i = 0; i < num; i++) { /* now the transients */
1713 if (!XGetWindowAttributes(dpy, wins[i], &wa))
1714 continue;
1715 if (XGetTransientForHint(dpy, wins[i], &d1)
1716 && (wa.map_state == IsViewable
1717 || getstate(wins[i]) == IconicState))
1718 manage(wins[i], &wa);
1719 }
1720 if (wins)
1721 XFree(wins);
1722 }
1723}
1724
1725void sendmon(Client *c, Monitor *m)
1726{
1727 if (c->mon == m)
1728 return;
1729 unfocus(c, 1);
1730 detach(c);
1731 detachstack(c);
1732 c->mon = m;
1733 c->tags = m->tagset[m->seltags]; /* assign tags of target monitor */
1734 attach(c);
1735 attachstack(c);
1736 focus(NULL);
1737 arrange(NULL);
1738}
1739
1740void setclientstate(Client *c, long state)
1741{
1742 long data[] = { state, None };
1743
1744 XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,
1745 PropModeReplace, (unsigned char *)data, 2);
1746}
1747
1748int
1749sendevent(Window w, Atom proto, int mask, long d0, long d1, long d2, long d3,
1750 long d4)
1751{
1752 int n;
1753 Atom *protocols, mt;
1754 int exists = 0;
1755 XEvent ev;
1756
1757 if (proto == wmatom[WMTakeFocus] || proto == wmatom[WMDelete]) {
1758 mt = wmatom[WMProtocols];
1759 if (XGetWMProtocols(dpy, w, &protocols, &n)) {
1760 while (!exists && n--)
1761 exists = protocols[n] == proto;
1762 XFree(protocols);
1763 }
1764 } else {
1765 exists = True;
1766 mt = proto;
1767 }
1768
1769 if (exists) {
1770 ev.type = ClientMessage;
1771 ev.xclient.window = w;
1772 ev.xclient.message_type = mt;
1773 ev.xclient.format = 32;
1774 ev.xclient.data.l[0] = d0;
1775 ev.xclient.data.l[1] = d1;
1776 ev.xclient.data.l[2] = d2;
1777 ev.xclient.data.l[3] = d3;
1778 ev.xclient.data.l[4] = d4;
1779 XSendEvent(dpy, w, False, mask, &ev);
1780 }
1781 return exists;
1782}
1783
1784void setfocus(Client *c)
1785{
1786 if (!c->neverfocus) {
1787 XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
1788 XChangeProperty(dpy, root, netatom[NetActiveWindow],
1789 XA_WINDOW, 32, PropModeReplace,
1790 (unsigned char *)&(c->win), 1);
1791 }
1792 sendevent(c->win, wmatom[WMTakeFocus], NoEventMask, wmatom[WMTakeFocus],
1793 CurrentTime, 0, 0, 0);
1794}
1795
1796void setfullscreen(Client *c, int fullscreen)
1797{
1798 if (fullscreen && !c->isfullscreen) {
1799 XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
1800 PropModeReplace,
1801 (unsigned char *)&netatom[NetWMFullscreen], 1);
1802 c->isfullscreen = 1;
1803 c->oldstate = c->isfloating;
1804 c->oldbw = c->bw;
1805 c->bw = 0;
1806 c->isfloating = 1;
1807 resizeclient(c, c->mon->mx, c->mon->my, c->mon->mw, c->mon->mh);
1808 XRaiseWindow(dpy, c->win);
1809 } else if (!fullscreen && c->isfullscreen) {
1810 XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
1811 PropModeReplace, (unsigned char *)0, 0);
1812 c->isfullscreen = 0;
1813 c->isfloating = c->oldstate;
1814 c->bw = c->oldbw;
1815 c->x = c->oldx;
1816 c->y = c->oldy;
1817 c->w = c->oldw;
1818 c->h = c->oldh;
1819 resizeclient(c, c->x, c->y, c->w, c->h);
1820 arrange(c->mon);
1821 }
1822}
1823
1824void setgaps(int oh, int ov, int ih, int iv)
1825{
1826 if (oh < 0)
1827 oh = 0;
1828 if (ov < 0)
1829 ov = 0;
1830 if (ih < 0)
1831 ih = 0;
1832 if (iv < 0)
1833 iv = 0;
1834
1835 selmon->gappoh = oh;
1836 selmon->gappov = ov;
1837 selmon->gappih = ih;
1838 selmon->gappiv = iv;
1839 arrange(selmon);
1840}
1841
1842void togglegaps(const Arg *arg)
1843{
1844 enablegaps = !enablegaps;
1845 arrange(selmon);
1846}
1847
1848void defaultgaps(const Arg *arg)
1849{
1850 setgaps(gappoh, gappov, gappih, gappiv);
1851}
1852
1853void incrgaps(const Arg *arg)
1854{
1855 setgaps(selmon->gappoh + arg->i,
1856 selmon->gappov + arg->i,
1857 selmon->gappih + arg->i, selmon->gappiv + arg->i);
1858}
1859
1860void incrigaps(const Arg *arg)
1861{
1862 setgaps(selmon->gappoh,
1863 selmon->gappov,
1864 selmon->gappih + arg->i, selmon->gappiv + arg->i);
1865}
1866
1867void incrogaps(const Arg *arg)
1868{
1869 setgaps(selmon->gappoh + arg->i,
1870 selmon->gappov + arg->i, selmon->gappih, selmon->gappiv);
1871}
1872
1873void incrohgaps(const Arg *arg)
1874{
1875 setgaps(selmon->gappoh + arg->i,
1876 selmon->gappov, selmon->gappih, selmon->gappiv);
1877}
1878
1879void incrovgaps(const Arg *arg)
1880{
1881 setgaps(selmon->gappoh,
1882 selmon->gappov + arg->i, selmon->gappih, selmon->gappiv);
1883}
1884
1885void incrihgaps(const Arg *arg)
1886{
1887 setgaps(selmon->gappoh,
1888 selmon->gappov, selmon->gappih + arg->i, selmon->gappiv);
1889}
1890
1891void incrivgaps(const Arg *arg)
1892{
1893 setgaps(selmon->gappoh,
1894 selmon->gappov, selmon->gappih, selmon->gappiv + arg->i);
1895}
1896
1897void setlayout(const Arg *arg)
1898{
1899 if (!arg || !arg->v || arg->v != selmon->lt[selmon->sellt])
1900 selmon->sellt ^= 1;
1901 if (arg && arg->v)
1902 selmon->lt[selmon->sellt] = (Layout *) arg->v;
1903 strncpy(selmon->ltsymbol, selmon->lt[selmon->sellt]->symbol,
1904 sizeof selmon->ltsymbol);
1905 if (selmon->sel)
1906 arrange(selmon);
1907 else
1908 drawbar(selmon);
1909}
1910
1911/* arg > 1.0 will set mfact absolutely */
1912void setmfact(const Arg *arg)
1913{
1914 float f;
1915
1916 if (!arg || !selmon->lt[selmon->sellt]->arrange)
1917 return;
1918 f = arg->f < 1.0 ? arg->f + selmon->mfact : arg->f - 1.0;
1919 if (f < 0.05 || f > 0.95)
1920 return;
1921 selmon->mfact = f;
1922 arrange(selmon);
1923}
1924
1925void setup(void)
1926{
1927 int i;
1928 XSetWindowAttributes wa;
1929 Atom utf8string;
1930 struct sigaction sa;
1931
1932 /* do not transform children into zombies when they terminate */
1933 sigemptyset(&sa.sa_mask);
1934 sa.sa_flags = SA_NOCLDSTOP | SA_NOCLDWAIT | SA_RESTART;
1935 sa.sa_handler = SIG_IGN;
1936 sigaction(SIGCHLD, &sa, NULL);
1937
1938 /* clean up any zombies (inherited from .xinitrc etc) immediately */
1939 while (waitpid(-1, NULL, WNOHANG) > 0) ;
1940
1941 /* init screen */
1942 screen = DefaultScreen(dpy);
1943 sw = DisplayWidth(dpy, screen);
1944 sh = DisplayHeight(dpy, screen);
1945 root = RootWindow(dpy, screen);
1946 drw = drw_create(dpy, screen, root, sw, sh);
1947 if (!drw_fontset_create(drw, fonts, LENGTH(fonts)))
1948 die("no fonts could be loaded.");
1949 lrpad = drw->fonts->h;
1950 bh = drw->fonts->h + 2;
1951 updategeom();
1952 /* init atoms */
1953 utf8string = XInternAtom(dpy, "UTF8_STRING", False);
1954 wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
1955 wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
1956 wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);
1957 wmatom[WMTakeFocus] = XInternAtom(dpy, "WM_TAKE_FOCUS", False);
1958 netatom[NetActiveWindow] =
1959 XInternAtom(dpy, "_NET_ACTIVE_WINDOW", False);
1960 netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
1961 netatom[NetSystemTray] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_S0", False);
1962 netatom[NetSystemTrayOP] =
1963 XInternAtom(dpy, "_NET_SYSTEM_TRAY_OPCODE", False);
1964 netatom[NetSystemTrayOrientation] =
1965 XInternAtom(dpy, "_NET_SYSTEM_TRAY_ORIENTATION", False);
1966 netatom[NetSystemTrayOrientationHorz] =
1967 XInternAtom(dpy, "_NET_SYSTEM_TRAY_ORIENTATION_HORZ", False);
1968 netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
1969 netatom[NetWMState] = XInternAtom(dpy, "_NET_WM_STATE", False);
1970 netatom[NetWMCheck] =
1971 XInternAtom(dpy, "_NET_SUPPORTING_WM_CHECK", False);
1972 netatom[NetWMFullscreen] =
1973 XInternAtom(dpy, "_NET_WM_STATE_FULLSCREEN", False);
1974 netatom[NetWMWindowType] =
1975 XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False);
1976 netatom[NetWMWindowTypeDialog] =
1977 XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False);
1978 netatom[NetClientList] = XInternAtom(dpy, "_NET_CLIENT_LIST", False);
1979 xatom[Manager] = XInternAtom(dpy, "MANAGER", False);
1980 xatom[Xembed] = XInternAtom(dpy, "_XEMBED", False);
1981 xatom[XembedInfo] = XInternAtom(dpy, "_XEMBED_INFO", False);
1982 /* init cursors */
1983 cursor[CurNormal] = drw_cur_create(drw, XC_left_ptr);
1984 cursor[CurResize] = drw_cur_create(drw, XC_sizing);
1985 cursor[CurMove] = drw_cur_create(drw, XC_fleur);
1986 /* init appearance */
1987 scheme = ecalloc(LENGTH(colors), sizeof(Clr *));
1988 for (i = 0; i < LENGTH(colors); i++)
1989 scheme[i] = drw_scm_create(drw, colors[i], 3);
1990 /* init system tray */
1991 updatesystray();
1992 /* init bars */
1993 updatebars();
1994 updatestatus();
1995 /* supporting window for NetWMCheck */
1996 wmcheckwin = XCreateSimpleWindow(dpy, root, 0, 0, 1, 1, 0, 0, 0);
1997 XChangeProperty(dpy, wmcheckwin, netatom[NetWMCheck], XA_WINDOW, 32,
1998 PropModeReplace, (unsigned char *)&wmcheckwin, 1);
1999 XChangeProperty(dpy, wmcheckwin, netatom[NetWMName], utf8string, 8,
2000 PropModeReplace, (unsigned char *)"dwm", 3);
2001 XChangeProperty(dpy, root, netatom[NetWMCheck], XA_WINDOW, 32,
2002 PropModeReplace, (unsigned char *)&wmcheckwin, 1);
2003 /* EWMH support per view */
2004 XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
2005 PropModeReplace, (unsigned char *)netatom, NetLast);
2006 XDeleteProperty(dpy, root, netatom[NetClientList]);
2007 /* select events */
2008 wa.cursor = cursor[CurNormal]->cursor;
2009 wa.event_mask = SubstructureRedirectMask | SubstructureNotifyMask
2010 | ButtonPressMask | PointerMotionMask | EnterWindowMask
2011 | LeaveWindowMask | StructureNotifyMask | PropertyChangeMask;
2012 XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
2013 XSelectInput(dpy, root, wa.event_mask);
2014 grabkeys();
2015 focus(NULL);
2016}
2017
2018void seturgent(Client *c, int urg)
2019{
2020 XWMHints *wmh;
2021
2022 c->isurgent = urg;
2023 if (!(wmh = XGetWMHints(dpy, c->win)))
2024 return;
2025 wmh->flags =
2026 urg ? (wmh->flags | XUrgencyHint) : (wmh->flags & ~XUrgencyHint);
2027 XSetWMHints(dpy, c->win, wmh);
2028 XFree(wmh);
2029}
2030
2031void showhide(Client *c)
2032{
2033 if (!c)
2034 return;
2035 if (ISVISIBLE(c)) {
2036 /* show clients top down */
2037 XMoveWindow(dpy, c->win, c->x, c->y);
2038 if ((!c->mon->lt[c->mon->sellt]->arrange || c->isfloating)
2039 && !c->isfullscreen)
2040 resize(c, c->x, c->y, c->w, c->h, 0);
2041 showhide(c->snext);
2042 } else {
2043 /* hide clients bottom up */
2044 showhide(c->snext);
2045 XMoveWindow(dpy, c->win, WIDTH(c) * -2, c->y);
2046 }
2047}
2048
2049void spawn(const Arg *arg)
2050{
2051 struct sigaction sa;
2052
2053 if (arg->v == dmenucmd)
2054 dmenumon[0] = '0' + selmon->num;
2055 if (fork() == 0) {
2056 if (dpy)
2057 close(ConnectionNumber(dpy));
2058 setsid();
2059
2060 sigemptyset(&sa.sa_mask);
2061 sa.sa_flags = 0;
2062 sa.sa_handler = SIG_DFL;
2063 sigaction(SIGCHLD, &sa, NULL);
2064
2065 execvp(((char **)arg->v)[0], (char **)arg->v);
2066 die("dwm: execvp '%s' failed:", ((char **)arg->v)[0]);
2067 }
2068}
2069
2070void tag(const Arg *arg)
2071{
2072 if (selmon->sel && arg->ui & TAGMASK) {
2073 selmon->sel->tags = arg->ui & TAGMASK;
2074 focus(NULL);
2075 arrange(selmon);
2076 }
2077}
2078
2079void tagmon(const Arg *arg)
2080{
2081 if (!selmon->sel || !mons->next)
2082 return;
2083 sendmon(selmon->sel, dirtomon(arg->i));
2084}
2085
2086void tile(Monitor *m)
2087{
2088 unsigned int i, n, h, r, oe = enablegaps, ie = enablegaps, mw, my, ty;
2089 Client *c;
2090
2091 for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++) ;
2092 if (n == 0)
2093 return;
2094 if (smartgaps == n) {
2095 oe = 0; // outer gaps disabled
2096 }
2097
2098 if (n > m->nmaster)
2099 mw = m->nmaster ? (m->ww + m->gappiv * ie) * m->mfact : 0;
2100 else
2101 mw = m->ww - 2 * m->gappov * oe + m->gappiv * ie;
2102 for (i = 0, my = ty = m->gappoh * oe, c = nexttiled(m->clients); c;
2103 c = nexttiled(c->next), i++)
2104 if (i < m->nmaster) {
2105 r = MIN(n, m->nmaster) - i;
2106 h = (m->wh - my - m->gappoh * oe -
2107 m->gappih * ie * (r - 1)) / r;
2108 resize(c, m->wx + m->gappov * oe, m->wy + my,
2109 mw - (2 * c->bw) - m->gappiv * ie,
2110 h - (2 * c->bw), 0);
2111 my += HEIGHT(c) + m->gappih * ie;
2112
2113 if (my + HEIGHT(c) < m->wh)
2114 my += HEIGHT(c);
2115 } else {
2116 r = n - i;
2117 h = (m->wh - ty - m->gappoh * oe -
2118 m->gappih * ie * (r - 1)) / r;
2119 resize(c, m->wx + mw + m->gappov * oe, m->wy + ty,
2120 m->ww - mw - (2 * c->bw) - 2 * m->gappov * oe,
2121 h - (2 * c->bw), 0);
2122 ty += HEIGHT(c) + m->gappih * ie;
2123 }
2124}
2125
2126void togglebar(const Arg *arg)
2127{
2128 selmon->showbar = !selmon->showbar;
2129 updatebarpos(selmon);
2130 resizebarwin(selmon);
2131 if (showsystray) {
2132 XWindowChanges wc;
2133 if (!selmon->showbar)
2134 wc.y = -bh;
2135 else if (selmon->showbar) {
2136 wc.y = 0;
2137 if (!selmon->topbar)
2138 wc.y = selmon->mh - bh;
2139 }
2140 XConfigureWindow(dpy, systray->win, CWY, &wc);
2141 }
2142 arrange(selmon);
2143}
2144
2145void togglefloating(const Arg *arg)
2146{
2147 if (!selmon->sel)
2148 return;
2149 if (selmon->sel->isfullscreen) /* no support for fullscreen windows */
2150 return;
2151 selmon->sel->isfloating = !selmon->sel->isfloating
2152 || selmon->sel->isfixed;
2153 if (selmon->sel->isfloating)
2154 resize(selmon->sel, selmon->sel->x, selmon->sel->y,
2155 selmon->sel->w, selmon->sel->h, 0);
2156 arrange(selmon);
2157}
2158
2159void togglefullscr(const Arg *arg)
2160{
2161 if (selmon->sel)
2162 setfullscreen(selmon->sel, !selmon->sel->isfullscreen);
2163}
2164
2165void toggletag(const Arg *arg)
2166{
2167 unsigned int newtags;
2168
2169 if (!selmon->sel)
2170 return;
2171 newtags = selmon->sel->tags ^ (arg->ui & TAGMASK);
2172 if (newtags) {
2173 selmon->sel->tags = newtags;
2174 focus(NULL);
2175 arrange(selmon);
2176 }
2177}
2178
2179void toggleview(const Arg *arg)
2180{
2181 unsigned int newtagset =
2182 selmon->tagset[selmon->seltags] ^ (arg->ui & TAGMASK);
2183
2184 if (newtagset) {
2185 selmon->tagset[selmon->seltags] = newtagset;
2186 focus(NULL);
2187 arrange(selmon);
2188 }
2189}
2190
2191void unfocus(Client *c, int setfocus)
2192{
2193 if (!c)
2194 return;
2195 grabbuttons(c, 0);
2196 XSetWindowBorder(dpy, c->win, scheme[SchemeNorm][ColBorder].pixel);
2197 if (setfocus) {
2198 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
2199 XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
2200 }
2201}
2202
2203void unmanage(Client *c, int destroyed)
2204{
2205 Monitor *m = c->mon;
2206 XWindowChanges wc;
2207
2208 if (c->swallowing) {
2209 unswallow(c);
2210 return;
2211 }
2212
2213 Client *s = swallowingclient(c->win);
2214 if (s) {
2215 free(s->swallowing);
2216 s->swallowing = NULL;
2217 arrange(m);
2218 focus(NULL);
2219 return;
2220 }
2221
2222 detach(c);
2223 detachstack(c);
2224 if (!destroyed) {
2225 wc.border_width = c->oldbw;
2226 XGrabServer(dpy); /* avoid race conditions */
2227 XSetErrorHandler(xerrordummy);
2228 XSelectInput(dpy, c->win, NoEventMask);
2229 XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */
2230 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
2231 setclientstate(c, WithdrawnState);
2232 XSync(dpy, False);
2233 XSetErrorHandler(xerror);
2234 XUngrabServer(dpy);
2235 }
2236 free(c);
2237
2238 if (!s) {
2239 arrange(m);
2240 focus(NULL);
2241 updateclientlist();
2242 }
2243}
2244
2245void unmapnotify(XEvent *e)
2246{
2247 Client *c;
2248 XUnmapEvent *ev = &e->xunmap;
2249
2250 if ((c = wintoclient(ev->window))) {
2251 if (ev->send_event)
2252 setclientstate(c, WithdrawnState);
2253 else
2254 unmanage(c, 0);
2255 } else if ((c = wintosystrayicon(ev->window))) {
2256 /* KLUDGE! sometimes icons occasionally unmap their windows, but do
2257 * _not_ destroy them. We map those windows back */
2258 XMapRaised(dpy, c->win);
2259 updatesystray();
2260 }
2261}
2262
2263void updatebars(void)
2264{
2265 unsigned int w;
2266 Monitor *m;
2267 XSetWindowAttributes wa = {
2268 .override_redirect = True,
2269 .background_pixmap = ParentRelative,
2270 .event_mask = ButtonPressMask | ExposureMask
2271 };
2272 XClassHint ch = { "dwm", "dwm" };
2273 for (m = mons; m; m = m->next) {
2274 if (m->barwin)
2275 continue;
2276 w = m->ww;
2277 if (showsystray && m == systraytomon(m))
2278 w -= getsystraywidth();
2279 m->barwin =
2280 XCreateWindow(dpy, root, m->wx, m->by, w, bh, 0,
2281 DefaultDepth(dpy, screen), CopyFromParent,
2282 DefaultVisual(dpy, screen),
2283 CWOverrideRedirect | CWBackPixmap |
2284 CWEventMask, &wa);
2285 XDefineCursor(dpy, m->barwin, cursor[CurNormal]->cursor);
2286 if (showsystray && m == systraytomon(m))
2287 XMapRaised(dpy, systray->win);
2288 XMapRaised(dpy, m->barwin);
2289 XSetClassHint(dpy, m->barwin, &ch);
2290 }
2291}
2292
2293void updatebarpos(Monitor *m)
2294{
2295 m->wy = m->my;
2296 m->wh = m->mh;
2297 if (m->showbar) {
2298 m->wh -= bh;
2299 m->by = m->topbar ? m->wy : m->wy + m->wh;
2300 m->wy = m->topbar ? m->wy + bh : m->wy;
2301 } else
2302 m->by = -bh;
2303}
2304
2305void updateclientlist()
2306{
2307 Client *c;
2308 Monitor *m;
2309
2310 XDeleteProperty(dpy, root, netatom[NetClientList]);
2311 for (m = mons; m; m = m->next)
2312 for (c = m->clients; c; c = c->next)
2313 XChangeProperty(dpy, root, netatom[NetClientList],
2314 XA_WINDOW, 32, PropModeAppend,
2315 (unsigned char *)&(c->win), 1);
2316}
2317
2318int updategeom(void)
2319{
2320 int dirty = 0;
2321
2322#ifdef XINERAMA
2323 if (XineramaIsActive(dpy)) {
2324 int i, j, n, nn;
2325 Client *c;
2326 Monitor *m;
2327 XineramaScreenInfo *info = XineramaQueryScreens(dpy, &nn);
2328 XineramaScreenInfo *unique = NULL;
2329
2330 for (n = 0, m = mons; m; m = m->next, n++) ;
2331 /* only consider unique geometries as separate screens */
2332 unique = ecalloc(nn, sizeof(XineramaScreenInfo));
2333 for (i = 0, j = 0; i < nn; i++)
2334 if (isuniquegeom(unique, j, &info[i]))
2335 memcpy(&unique[j++], &info[i],
2336 sizeof(XineramaScreenInfo));
2337 XFree(info);
2338 nn = j;
2339
2340 /* new monitors if nn > n */
2341 for (i = n; i < nn; i++) {
2342 for (m = mons; m && m->next; m = m->next) ;
2343 if (m)
2344 m->next = createmon();
2345 else
2346 mons = createmon();
2347 }
2348 for (i = 0, m = mons; i < nn && m; m = m->next, i++)
2349 if (i >= n
2350 || unique[i].x_org != m->mx
2351 || unique[i].y_org != m->my
2352 || unique[i].width != m->mw
2353 || unique[i].height != m->mh) {
2354 dirty = 1;
2355 m->num = i;
2356 m->mx = m->wx = unique[i].x_org;
2357 m->my = m->wy = unique[i].y_org;
2358 m->mw = m->ww = unique[i].width;
2359 m->mh = m->wh = unique[i].height;
2360 updatebarpos(m);
2361 }
2362 /* removed monitors if n > nn */
2363 for (i = nn; i < n; i++) {
2364 for (m = mons; m && m->next; m = m->next) ;
2365 while ((c = m->clients)) {
2366 dirty = 1;
2367 m->clients = c->next;
2368 detachstack(c);
2369 c->mon = mons;
2370 attach(c);
2371 attachstack(c);
2372 }
2373 if (m == selmon)
2374 selmon = mons;
2375 cleanupmon(m);
2376 }
2377 free(unique);
2378 } else
2379#endif /* XINERAMA */
2380 { /* default monitor setup */
2381 if (!mons)
2382 mons = createmon();
2383 if (mons->mw != sw || mons->mh != sh) {
2384 dirty = 1;
2385 mons->mw = mons->ww = sw;
2386 mons->mh = mons->wh = sh;
2387 updatebarpos(mons);
2388 }
2389 }
2390 if (dirty) {
2391 selmon = mons;
2392 selmon = wintomon(root);
2393 }
2394 return dirty;
2395}
2396
2397void updatenumlockmask(void)
2398{
2399 unsigned int i, j;
2400 XModifierKeymap *modmap;
2401
2402 numlockmask = 0;
2403 modmap = XGetModifierMapping(dpy);
2404 for (i = 0; i < 8; i++)
2405 for (j = 0; j < modmap->max_keypermod; j++)
2406 if (modmap->modifiermap[i * modmap->max_keypermod + j]
2407 == XKeysymToKeycode(dpy, XK_Num_Lock))
2408 numlockmask = (1 << i);
2409 XFreeModifiermap(modmap);
2410}
2411
2412void updatesizehints(Client *c)
2413{
2414 long msize;
2415 XSizeHints size;
2416
2417 if (!XGetWMNormalHints(dpy, c->win, &size, &msize))
2418 /* size is uninitialized, ensure that size.flags aren't used */
2419 size.flags = PSize;
2420 if (size.flags & PBaseSize) {
2421 c->basew = size.base_width;
2422 c->baseh = size.base_height;
2423 } else if (size.flags & PMinSize) {
2424 c->basew = size.min_width;
2425 c->baseh = size.min_height;
2426 } else
2427 c->basew = c->baseh = 0;
2428 if (size.flags & PResizeInc) {
2429 c->incw = size.width_inc;
2430 c->inch = size.height_inc;
2431 } else
2432 c->incw = c->inch = 0;
2433 if (size.flags & PMaxSize) {
2434 c->maxw = size.max_width;
2435 c->maxh = size.max_height;
2436 } else
2437 c->maxw = c->maxh = 0;
2438 if (size.flags & PMinSize) {
2439 c->minw = size.min_width;
2440 c->minh = size.min_height;
2441 } else if (size.flags & PBaseSize) {
2442 c->minw = size.base_width;
2443 c->minh = size.base_height;
2444 } else
2445 c->minw = c->minh = 0;
2446 if (size.flags & PAspect) {
2447 c->mina = (float)size.min_aspect.y / size.min_aspect.x;
2448 c->maxa = (float)size.max_aspect.x / size.max_aspect.y;
2449 } else
2450 c->maxa = c->mina = 0.0;
2451 c->isfixed = (c->maxw && c->maxh && c->maxw == c->minw
2452 && c->maxh == c->minh);
2453 c->hintsvalid = 1;
2454}
2455
2456void updatestatus(void)
2457{
2458 if (!gettextprop(root, XA_WM_NAME, stext, sizeof(stext)))
2459 strcpy(stext, "dwm-" VERSION);
2460 drawbar(selmon);
2461 updatesystray();
2462}
2463
2464void updatesystrayicongeom(Client *i, int w, int h)
2465{
2466 if (i) {
2467 i->h = bh;
2468 if (w == h)
2469 i->w = bh;
2470 else if (h == bh)
2471 i->w = w;
2472 else
2473 i->w = (int)((float)bh * ((float)w / (float)h));
2474 applysizehints(i, &(i->x), &(i->y), &(i->w), &(i->h), False);
2475 /* force icons into the systray dimensions if they don't want to */
2476 if (i->h > bh) {
2477 if (i->w == i->h)
2478 i->w = bh;
2479 else
2480 i->w =
2481 (int)((float)bh *
2482 ((float)i->w / (float)i->h));
2483 i->h = bh;
2484 }
2485 }
2486}
2487
2488void updatesystrayiconstate(Client *i, XPropertyEvent *ev)
2489{
2490 long flags;
2491 int code = 0;
2492
2493 if (!showsystray || !i || ev->atom != xatom[XembedInfo] ||
2494 !(flags = getatomprop(i, xatom[XembedInfo])))
2495 return;
2496
2497 if (flags & XEMBED_MAPPED && !i->tags) {
2498 i->tags = 1;
2499 code = XEMBED_WINDOW_ACTIVATE;
2500 XMapRaised(dpy, i->win);
2501 setclientstate(i, NormalState);
2502 } else if (!(flags & XEMBED_MAPPED) && i->tags) {
2503 i->tags = 0;
2504 code = XEMBED_WINDOW_DEACTIVATE;
2505 XUnmapWindow(dpy, i->win);
2506 setclientstate(i, WithdrawnState);
2507 } else
2508 return;
2509 sendevent(i->win, xatom[Xembed], StructureNotifyMask, CurrentTime, code,
2510 0, systray->win, XEMBED_EMBEDDED_VERSION);
2511}
2512
2513void updatesystray(void)
2514{
2515 XSetWindowAttributes wa;
2516 XWindowChanges wc;
2517 Client *i;
2518 Monitor *m = systraytomon(NULL);
2519 unsigned int x = m->mx + m->mw;
2520 unsigned int sw = TEXTW(stext) - lrpad + systrayspacing;
2521 unsigned int w = 1;
2522
2523 if (!showsystray)
2524 return;
2525 if (systrayonleft)
2526 x -= sw + lrpad / 2;
2527 if (!systray) {
2528 /* init systray */
2529 if (!(systray = (Systray *) calloc(1, sizeof(Systray))))
2530 die("fatal: could not malloc() %u bytes\n",
2531 sizeof(Systray));
2532 systray->win =
2533 XCreateSimpleWindow(dpy, root, x, m->by, w, bh, 0, 0,
2534 scheme[SchemeSel][ColBg].pixel);
2535 wa.event_mask = ButtonPressMask | ExposureMask;
2536 wa.override_redirect = True;
2537 wa.background_pixel = scheme[SchemeNorm][ColBg].pixel;
2538 XSelectInput(dpy, systray->win, SubstructureNotifyMask);
2539 XChangeProperty(dpy, systray->win,
2540 netatom[NetSystemTrayOrientation], XA_CARDINAL,
2541 32, PropModeReplace,
2542 (unsigned char *)
2543 &netatom[NetSystemTrayOrientationHorz], 1);
2544 XChangeWindowAttributes(dpy, systray->win,
2545 CWEventMask | CWOverrideRedirect |
2546 CWBackPixel, &wa);
2547 XMapRaised(dpy, systray->win);
2548 XSetSelectionOwner(dpy, netatom[NetSystemTray], systray->win,
2549 CurrentTime);
2550 if (XGetSelectionOwner(dpy, netatom[NetSystemTray]) ==
2551 systray->win) {
2552 sendevent(root, xatom[Manager], StructureNotifyMask,
2553 CurrentTime, netatom[NetSystemTray],
2554 systray->win, 0, 0);
2555 XSync(dpy, False);
2556 } else {
2557 fprintf(stderr, "dwm: unable to obtain system tray.\n");
2558 free(systray);
2559 systray = NULL;
2560 return;
2561 }
2562 }
2563 for (w = 0, i = systray->icons; i; i = i->next) {
2564 /* make sure the background color stays the same */
2565 wa.background_pixel = scheme[SchemeNorm][ColBg].pixel;
2566 XChangeWindowAttributes(dpy, i->win, CWBackPixel, &wa);
2567 XMapRaised(dpy, i->win);
2568 w += systrayspacing;
2569 i->x = w;
2570 XMoveResizeWindow(dpy, i->win, i->x, 0, i->w, i->h);
2571 w += i->w;
2572 if (i->mon != m)
2573 i->mon = m;
2574 }
2575 w = w ? w + systrayspacing : 1;
2576 x -= w;
2577 XMoveResizeWindow(dpy, systray->win, x, m->by, w, bh);
2578 wc.x = x;
2579 wc.y = m->by;
2580 wc.width = w;
2581 wc.height = bh;
2582 wc.stack_mode = Above;
2583 wc.sibling = m->barwin;
2584 XConfigureWindow(dpy, systray->win,
2585 CWX | CWY | CWWidth | CWHeight | CWSibling |
2586 CWStackMode, &wc);
2587 XMapWindow(dpy, systray->win);
2588 XMapSubwindows(dpy, systray->win);
2589 /* redraw background */
2590 XSetForeground(dpy, drw->gc, scheme[SchemeNorm][ColBg].pixel);
2591 XFillRectangle(dpy, systray->win, drw->gc, 0, 0, w, bh);
2592 XSync(dpy, False);
2593}
2594
2595void updatetitle(Client *c)
2596{
2597 if (!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
2598 gettextprop(c->win, XA_WM_NAME, c->name, sizeof c->name);
2599 if (c->name[0] == '\0') /* hack to mark broken clients */
2600 strcpy(c->name, broken);
2601}
2602
2603void updatewindowtype(Client *c)
2604{
2605 Atom state = getatomprop(c, netatom[NetWMState]);
2606 Atom wtype = getatomprop(c, netatom[NetWMWindowType]);
2607
2608 if (state == netatom[NetWMFullscreen])
2609 setfullscreen(c, 1);
2610 if (wtype == netatom[NetWMWindowTypeDialog])
2611 c->isfloating = 1;
2612}
2613
2614void updatewmhints(Client *c)
2615{
2616 XWMHints *wmh;
2617
2618 if ((wmh = XGetWMHints(dpy, c->win))) {
2619 if (c == selmon->sel && wmh->flags & XUrgencyHint) {
2620 wmh->flags &= ~XUrgencyHint;
2621 XSetWMHints(dpy, c->win, wmh);
2622 } else
2623 c->isurgent = (wmh->flags & XUrgencyHint) ? 1 : 0;
2624 if (wmh->flags & InputHint)
2625 c->neverfocus = !wmh->input;
2626 else
2627 c->neverfocus = 0;
2628 XFree(wmh);
2629 }
2630}
2631
2632void view(const Arg *arg)
2633{
2634 if ((arg->ui & TAGMASK) == selmon->tagset[selmon->seltags])
2635 return;
2636 selmon->seltags ^= 1; /* toggle sel tagset */
2637 if (arg->ui & TAGMASK)
2638 selmon->tagset[selmon->seltags] = arg->ui & TAGMASK;
2639 focus(NULL);
2640 arrange(selmon);
2641}
2642
2643pid_t winpid(Window w)
2644{
2645
2646 pid_t result = 0;
2647
2648#ifdef __linux__
2649 xcb_res_client_id_spec_t spec = { 0 };
2650 spec.client = w;
2651 spec.mask = XCB_RES_CLIENT_ID_MASK_LOCAL_CLIENT_PID;
2652
2653 xcb_generic_error_t *e = NULL;
2654 xcb_res_query_client_ids_cookie_t c =
2655 xcb_res_query_client_ids(xcon, 1, &spec);
2656 xcb_res_query_client_ids_reply_t *r =
2657 xcb_res_query_client_ids_reply(xcon, c, &e);
2658
2659 if (!r)
2660 return (pid_t) 0;
2661
2662 xcb_res_client_id_value_iterator_t i =
2663 xcb_res_query_client_ids_ids_iterator(r);
2664 for (; i.rem; xcb_res_client_id_value_next(&i)) {
2665 spec = i.data->spec;
2666 if (spec.mask & XCB_RES_CLIENT_ID_MASK_LOCAL_CLIENT_PID) {
2667 uint32_t *t = xcb_res_client_id_value_value(i.data);
2668 result = *t;
2669 break;
2670 }
2671 }
2672
2673 free(r);
2674
2675 if (result == (pid_t) - 1)
2676 result = 0;
2677
2678#endif /* __linux__ */
2679
2680#ifdef __OpenBSD__
2681 Atom type;
2682 int format;
2683 unsigned long len, bytes;
2684 unsigned char *prop;
2685 pid_t ret;
2686
2687 if (XGetWindowProperty
2688 (dpy, w, XInternAtom(dpy, "_NET_WM_PID", 0), 0, 1, False,
2689 AnyPropertyType, &type, &format, &len, &bytes, &prop) != Success
2690 || !prop)
2691 return 0;
2692
2693 ret = *(pid_t *) prop;
2694 XFree(prop);
2695 result = ret;
2696
2697#endif /* __OpenBSD__ */
2698 return result;
2699}
2700
2701pid_t getparentprocess(pid_t p)
2702{
2703 unsigned int v = 0;
2704
2705#ifdef __linux__
2706 FILE *f;
2707 char buf[256];
2708 snprintf(buf, sizeof(buf) - 1, "/proc/%u/stat", (unsigned)p);
2709
2710 if (!(f = fopen(buf, "r")))
2711 return 0;
2712
2713 fscanf(f, "%*u %*s %*c %u", &v);
2714 fclose(f);
2715#endif /* __linux__ */
2716
2717#ifdef __OpenBSD__
2718 int n;
2719 kvm_t *kd;
2720 struct kinfo_proc *kp;
2721
2722 kd = kvm_openfiles(NULL, NULL, NULL, KVM_NO_FILES, NULL);
2723 if (!kd)
2724 return 0;
2725
2726 kp = kvm_getprocs(kd, KERN_PROC_PID, p, sizeof(*kp), &n);
2727 v = kp->p_ppid;
2728#endif /* __OpenBSD__ */
2729
2730 return (pid_t) v;
2731}
2732
2733int isdescprocess(pid_t p, pid_t c)
2734{
2735 while (p != c && c != 0)
2736 c = getparentprocess(c);
2737
2738 return (int)c;
2739}
2740
2741Client *termforwin(const Client *w)
2742{
2743 Client *c;
2744 Monitor *m;
2745
2746 if (!w->pid || w->isterminal)
2747 return NULL;
2748
2749 for (m = mons; m; m = m->next) {
2750 for (c = m->clients; c; c = c->next) {
2751 if (c->isterminal && !c->swallowing && c->pid
2752 && isdescprocess(c->pid, w->pid))
2753 return c;
2754 }
2755 }
2756
2757 return NULL;
2758}
2759
2760Client *swallowingclient(Window w)
2761{
2762 Client *c;
2763 Monitor *m;
2764
2765 for (m = mons; m; m = m->next) {
2766 for (c = m->clients; c; c = c->next) {
2767 if (c->swallowing && c->swallowing->win == w)
2768 return c;
2769 }
2770 }
2771
2772 return NULL;
2773}
2774
2775Client *wintoclient(Window w)
2776{
2777 Client *c;
2778 Monitor *m;
2779
2780 for (m = mons; m; m = m->next)
2781 for (c = m->clients; c; c = c->next)
2782 if (c->win == w)
2783 return c;
2784 return NULL;
2785}
2786
2787Client *wintosystrayicon(Window w)
2788{
2789 Client *i = NULL;
2790
2791 if (!showsystray || !w)
2792 return i;
2793 for (i = systray->icons; i && i->win != w; i = i->next) ;
2794 return i;
2795}
2796
2797Monitor *wintomon(Window w)
2798{
2799 int x, y;
2800 Client *c;
2801 Monitor *m;
2802
2803 if (w == root && getrootptr(&x, &y))
2804 return recttomon(x, y, 1, 1);
2805 for (m = mons; m; m = m->next)
2806 if (w == m->barwin)
2807 return m;
2808 if ((c = wintoclient(w)))
2809 return c->mon;
2810 return selmon;
2811}
2812
2813/* There's no way to check accesses to destroyed windows, thus those cases are
2814 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
2815 * default error handler, which may call exit. */
2816int xerror(Display *dpy, XErrorEvent *ee)
2817{
2818 if (ee->error_code == BadWindow
2819 || (ee->request_code == X_SetInputFocus
2820 && ee->error_code == BadMatch)
2821 || (ee->request_code == X_PolyText8
2822 && ee->error_code == BadDrawable)
2823 || (ee->request_code == X_PolyFillRectangle
2824 && ee->error_code == BadDrawable)
2825 || (ee->request_code == X_PolySegment
2826 && ee->error_code == BadDrawable)
2827 || (ee->request_code == X_ConfigureWindow
2828 && ee->error_code == BadMatch)
2829 || (ee->request_code == X_GrabButton && ee->error_code == BadAccess)
2830 || (ee->request_code == X_GrabKey && ee->error_code == BadAccess)
2831 || (ee->request_code == X_CopyArea
2832 && ee->error_code == BadDrawable))
2833 return 0;
2834 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
2835 ee->request_code, ee->error_code);
2836 return xerrorxlib(dpy, ee); /* may call exit */
2837}
2838
2839int xerrordummy(Display *dpy, XErrorEvent *ee)
2840{
2841 return 0;
2842}
2843
2844/* Startup Error handler to check if another window manager
2845 * is already running. */
2846int xerrorstart(Display *dpy, XErrorEvent *ee)
2847{
2848 die("dwm: another window manager is already running");
2849 return -1;
2850}
2851
2852Monitor *systraytomon(Monitor *m)
2853{
2854 Monitor *t;
2855 int i, n;
2856 if (!systraypinning) {
2857 if (!m)
2858 return selmon;
2859 return m == selmon ? m : NULL;
2860 }
2861 for (n = 1, t = mons; t && t->next; n++, t = t->next) ;
2862 for (i = 1, t = mons; t && t->next && i < systraypinning;
2863 i++, t = t->next) ;
2864 if (systraypinningfailfirst && n < systraypinning)
2865 return mons;
2866 return t;
2867}
2868
2869void zoom(const Arg *arg)
2870{
2871 Client *c = selmon->sel;
2872
2873 if (!selmon->lt[selmon->sellt]->arrange || !c || c->isfloating)
2874 return;
2875 if (c == nexttiled(selmon->clients) && !(c = nexttiled(c->next)))
2876 return;
2877 pop(c);
2878}
2879
2880int main(int argc, char *argv[])
2881{
2882 if (argc == 2 && !strcmp("-v", argv[1]))
2883 die("dwm-" VERSION);
2884 else if (argc != 1)
2885 die("usage: dwm [-v]");
2886 if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
2887 fputs("warning: no locale support\n", stderr);
2888 if (!(dpy = XOpenDisplay(NULL)))
2889 die("dwm: cannot open display");
2890 if (!(xcon = XGetXCBConnection(dpy)))
2891 die("dwm: cannot get xcb connection\n");
2892 checkotherwm();
2893 setup();
2894#ifdef __OpenBSD__
2895 if (pledge("stdio rpath proc exec ps", NULL) == -1)
2896 die("pledge");
2897#endif /* __OpenBSD__ */
2898 scan();
2899 run();
2900 cleanup();
2901 XCloseDisplay(dpy);
2902 return EXIT_SUCCESS;
2903}
generated by cgit v1.2.3 (git 2.39.1) at 2025-12-17 21:39:51 +0000