dwm.c (65765B) download
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/stat.h>
33#include <sys/wait.h>
34#include <X11/cursorfont.h>
35#include <X11/keysym.h>
36#include <X11/Xatom.h>
37#include <X11/Xlib.h>
38#include <X11/Xproto.h>
39#include <X11/Xutil.h>
40#ifdef XINERAMA
41#include <X11/extensions/Xinerama.h>
42#endif /* XINERAMA */
43#include <X11/Xft/Xft.h>
44
45#include "drw.h"
46#include "util.h"
47
48/* macros */
49#define BUTTONMASK (ButtonPressMask|ButtonReleaseMask)
50#define CLEANMASK(mask) (mask & ~(numlockmask|LockMask) & (ShiftMask|ControlMask|Mod1Mask|Mod2Mask|Mod3Mask|Mod4Mask|Mod5Mask))
51#define INTERSECT(x,y,w,h,m) (MAX(0, MIN((x)+(w),(m)->wx+(m)->ww) - MAX((x),(m)->wx)) \
52 * MAX(0, MIN((y)+(h),(m)->wy+(m)->wh) - MAX((y),(m)->wy)))
53#define ISVISIBLE(C) ((C->tags & C->mon->tagset[C->mon->seltags]))
54#define MOUSEMASK (BUTTONMASK|PointerMotionMask)
55#define WIDTH(X) ((X)->w + 2 * (X)->bw)
56#define HEIGHT(X) ((X)->h + 2 * (X)->bw)
57#define TAGMASK ((1 << LENGTH(tags)) - 1)
58#define TEXTW(X) (drw_fontset_getwidth(drw, (X)) + lrpad)
59
60#define SYSTEM_TRAY_REQUEST_DOCK 0
61/* XEMBED messages */
62#define XEMBED_EMBEDDED_NOTIFY 0
63#define XEMBED_WINDOW_ACTIVATE 1
64#define XEMBED_FOCUS_IN 4
65#define XEMBED_MODALITY_ON 10
66#define XEMBED_MAPPED (1 << 0)
67#define XEMBED_WINDOW_ACTIVATE 1
68#define XEMBED_WINDOW_DEACTIVATE 2
69#define VERSION_MAJOR 0
70#define VERSION_MINOR 0
71#define XEMBED_EMBEDDED_VERSION (VERSION_MAJOR << 16) | VERSION_MINOR
72
73
74/* enums */
75enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
76enum { SchemeNorm, SchemeSel, SchemeUrg }; /* color schemes */
77enum { NetSupported, NetWMName, NetWMState, NetWMCheck,
78 NetSystemTray, NetSystemTrayOP, NetSystemTrayOrientation, NetSystemTrayOrientationHorz,
79 NetWMFullscreen, NetActiveWindow, NetWMWindowType,
80 NetWMWindowTypeDialog, NetClientList, NetLast }; /* EWMH atoms */
81enum { Manager, Xembed, XembedInfo, XLast }; /* Xembed atoms */
82enum { WMProtocols, WMDelete, WMState, WMTakeFocus, WMLast }; /* default atoms */
83enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle,
84 ClkClientWin, ClkRootWin, ClkLast }; /* clicks */
85
86typedef union {
87 int i;
88 unsigned int ui;
89 float f;
90 const void *v;
91} Arg;
92
93typedef struct {
94 unsigned int click;
95 unsigned int mask;
96 unsigned int button;
97 void (*func)(const Arg *arg);
98 const Arg arg;
99} Button;
100
101typedef struct Monitor Monitor;
102typedef struct Client Client;
103struct Client {
104 char name[256];
105 float mina, maxa;
106 int x, y, w, h;
107 int oldx, oldy, oldw, oldh;
108 int basew, baseh, incw, inch, maxw, maxh, minw, minh, hintsvalid;
109 int bw, oldbw;
110 unsigned int tags;
111 int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen;
112 Client *next;
113 Client *snext;
114 Monitor *mon;
115 Window win;
116};
117
118typedef struct {
119 unsigned int mod;
120 KeySym keysym;
121 void (*func)(const Arg *);
122 const Arg arg;
123} Key;
124
125typedef struct {
126 const char *symbol;
127 void (*arrange)(Monitor *);
128} Layout;
129
130struct Monitor {
131 char ltsymbol[16];
132 float mfact;
133 int nmaster;
134 int num;
135 int by; /* bar geometry */
136 int mx, my, mw, mh; /* screen size */
137 int wx, wy, ww, wh; /* window area */
138 unsigned int seltags;
139 unsigned int sellt;
140 unsigned int tagset[2];
141 int showbar;
142 int topbar;
143 Client *clients;
144 Client *sel;
145 Client *stack;
146 Monitor *next;
147 Window barwin;
148 const Layout *lt[2];
149};
150
151typedef struct {
152 const char *class;
153 const char *instance;
154 const char *title;
155 unsigned int tags;
156 int isfloating;
157 int monitor;
158} Rule;
159
160typedef struct Systray Systray;
161struct Systray {
162 Window win;
163 Client *icons;
164};
165
166/* function declarations */
167static void applyrules(Client *c);
168static int applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact);
169static void arrange(Monitor *m);
170static void arrangemon(Monitor *m);
171static void attach(Client *c);
172static void attachstack(Client *c);
173static void buttonpress(XEvent *e);
174static void checkotherwm(void);
175static void cleanup(void);
176static void cleanupmon(Monitor *mon);
177static void clientmessage(XEvent *e);
178static void configure(Client *c);
179static void configurenotify(XEvent *e);
180static void configurerequest(XEvent *e);
181static Monitor *createmon(void);
182static void cyclelayout(const Arg *arg);
183static void destroynotify(XEvent *e);
184static void detach(Client *c);
185static void detachstack(Client *c);
186static Monitor *dirtomon(int dir);
187static void drawbar(Monitor *m);
188static void drawbars(void);
189static void enternotify(XEvent *e);
190static void expose(XEvent *e);
191static void focus(Client *c);
192static void focusin(XEvent *e);
193static void focusmon(const Arg *arg);
194static void focusstack(const Arg *arg);
195static Atom getatomprop(Client *c, Atom prop);
196static int getrootptr(int *x, int *y);
197static long getstate(Window w);
198static unsigned int getsystraywidth();
199static int gettextprop(Window w, Atom atom, char *text, unsigned int size);
200static void grabbuttons(Client *c, int focused);
201static void grabkeys(void);
202static void incnmaster(const Arg *arg);
203static void keypress(XEvent *e);
204static void killclient(const Arg *arg);
205static void manage(Window w, XWindowAttributes *wa);
206static void mappingnotify(XEvent *e);
207static void maprequest(XEvent *e);
208static void monocle(Monitor *m);
209static void motionnotify(XEvent *e);
210static void movemouse(const Arg *arg);
211static Client *nexttiled(Client *c);
212static void pop(Client *c);
213static void propertynotify(XEvent *e);
214static void quit(const Arg *arg);
215static Monitor *recttomon(int x, int y, int w, int h);
216static void removesystrayicon(Client *i);
217static void resize(Client *c, int x, int y, int w, int h, int interact);
218static void resizebarwin(Monitor *m);
219static void resizeclient(Client *c, int x, int y, int w, int h);
220static void resizemouse(const Arg *arg);
221static void resizerequest(XEvent *e);
222static void restack(Monitor *m);
223static void run(void);
224static void runautostart(void);
225static void scan(void);
226static int sendevent(Window w, Atom proto, int m, long d0, long d1, long d2, long d3, long d4);
227static void sendmon(Client *c, Monitor *m);
228static void setclientstate(Client *c, long state);
229static void setfocus(Client *c);
230static void setfullscreen(Client *c, int fullscreen);
231static void setlayout(const Arg *arg);
232static void setmfact(const Arg *arg);
233static void setup(void);
234static void seturgent(Client *c, int urg);
235static void showhide(Client *c);
236static void spawn(const Arg *arg);
237static int statuswidth(void);
238static Monitor *systraytomon(Monitor *m);
239static void tag(const Arg *arg);
240static void tagmon(const Arg *arg);
241static void tile(Monitor *m);
242static void togglebar(const Arg *arg);
243static void togglefloating(const Arg *arg);
244static void toggletag(const Arg *arg);
245static void toggleview(const Arg *arg);
246static void unfocus(Client *c, int setfocus);
247static void unmanage(Client *c, int destroyed);
248static void unmapnotify(XEvent *e);
249static void updatebarpos(Monitor *m);
250static void updatebars(void);
251static void updateclientlist(void);
252static int updategeom(void);
253static void updatenumlockmask(void);
254static void updatesizehints(Client *c);
255static void updatestatus(void);
256static void updatesystray(void);
257static void updatesystrayicongeom(Client *i, int w, int h);
258static void updatesystrayiconstate(Client *i, XPropertyEvent *ev);
259static void updatetitle(Client *c);
260static void updatewindowtype(Client *c);
261static void updatewmhints(Client *c);
262static void view(const Arg *arg);
263static Client *wintoclient(Window w);
264static Monitor *wintomon(Window w);
265static Client *wintosystrayicon(Window w);
266static int xerror(Display *dpy, XErrorEvent *ee);
267static int xerrordummy(Display *dpy, XErrorEvent *ee);
268static int xerrorstart(Display *dpy, XErrorEvent *ee);
269static void zoom(const Arg *arg);
270
271/* variables */
272static Systray *systray = NULL;
273static const char broken[] = "broken";
274static char stext[256];
275static int screen;
276static int sw, sh; /* X display screen geometry width, height */
277static int bh; /* bar height */
278static int lrpad; /* sum of left and right padding for text */
279static int (*xerrorxlib)(Display *, XErrorEvent *);
280static unsigned int numlockmask = 0;
281static void (*handler[LASTEvent]) (XEvent *) = {
282 [ButtonPress] = buttonpress,
283 [ClientMessage] = clientmessage,
284 [ConfigureRequest] = configurerequest,
285 [ConfigureNotify] = configurenotify,
286 [DestroyNotify] = destroynotify,
287 [EnterNotify] = enternotify,
288 [Expose] = expose,
289 [FocusIn] = focusin,
290 [KeyPress] = keypress,
291 [MappingNotify] = mappingnotify,
292 [MapRequest] = maprequest,
293 [MotionNotify] = motionnotify,
294 [PropertyNotify] = propertynotify,
295 [ResizeRequest] = resizerequest,
296 [UnmapNotify] = unmapnotify
297};
298static Atom wmatom[WMLast], netatom[NetLast], xatom[XLast];
299static int running = 1;
300static Cur *cursor[CurLast];
301static Clr **scheme;
302static Display *dpy;
303static Drw *drw;
304static Monitor *mons, *selmon;
305static Window root, wmcheckwin;
306
307/* configuration, allows nested code to access above variables */
308#include "config.h"
309
310/* compile-time check if all tags fit into an unsigned int bit array. */
311struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; };
312
313/* function implementations */
314void
315applyrules(Client *c)
316{
317 const char *class, *instance;
318 unsigned int i;
319 const Rule *r;
320 Monitor *m;
321 XClassHint ch = { NULL, NULL };
322
323 /* rule matching */
324 c->isfloating = 0;
325 c->tags = 0;
326 XGetClassHint(dpy, c->win, &ch);
327 class = ch.res_class ? ch.res_class : broken;
328 instance = ch.res_name ? ch.res_name : broken;
329
330 for (i = 0; i < LENGTH(rules); i++) {
331 r = &rules[i];
332 if ((!r->title || strstr(c->name, r->title))
333 && (!r->class || strstr(class, r->class))
334 && (!r->instance || strstr(instance, r->instance)))
335 {
336 c->isfloating = r->isfloating;
337 c->tags |= r->tags;
338 for (m = mons; m && m->num != r->monitor; m = m->next);
339 if (m)
340 c->mon = m;
341 }
342 }
343 if (ch.res_class)
344 XFree(ch.res_class);
345 if (ch.res_name)
346 XFree(ch.res_name);
347 c->tags = c->tags & TAGMASK ? c->tags & TAGMASK : c->mon->tagset[c->mon->seltags];
348}
349
350int
351applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact)
352{
353 int baseismin;
354 Monitor *m = c->mon;
355
356 /* set minimum possible */
357 *w = MAX(1, *w);
358 *h = MAX(1, *h);
359 if (interact) {
360 if (*x > sw)
361 *x = sw - WIDTH(c);
362 if (*y > sh)
363 *y = sh - HEIGHT(c);
364 if (*x + *w + 2 * c->bw < 0)
365 *x = 0;
366 if (*y + *h + 2 * c->bw < 0)
367 *y = 0;
368 } else {
369 if (*x >= m->wx + m->ww)
370 *x = m->wx + m->ww - WIDTH(c);
371 if (*y >= m->wy + m->wh)
372 *y = m->wy + m->wh - HEIGHT(c);
373 if (*x + *w + 2 * c->bw <= m->wx)
374 *x = m->wx;
375 if (*y + *h + 2 * c->bw <= m->wy)
376 *y = m->wy;
377 }
378 if (*h < bh)
379 *h = bh;
380 if (*w < bh)
381 *w = bh;
382 if (resizehints || c->isfloating || !c->mon->lt[c->mon->sellt]->arrange) {
383 if (!c->hintsvalid)
384 updatesizehints(c);
385 /* see last two sentences in ICCCM 4.1.2.3 */
386 baseismin = c->basew == c->minw && c->baseh == c->minh;
387 if (!baseismin) { /* temporarily remove base dimensions */
388 *w -= c->basew;
389 *h -= c->baseh;
390 }
391 /* adjust for aspect limits */
392 if (c->mina > 0 && c->maxa > 0) {
393 if (c->maxa < (float)*w / *h)
394 *w = *h * c->maxa + 0.5;
395 else if (c->mina < (float)*h / *w)
396 *h = *w * c->mina + 0.5;
397 }
398 if (baseismin) { /* increment calculation requires this */
399 *w -= c->basew;
400 *h -= c->baseh;
401 }
402 /* adjust for increment value */
403 if (c->incw)
404 *w -= *w % c->incw;
405 if (c->inch)
406 *h -= *h % c->inch;
407 /* restore base dimensions */
408 *w = MAX(*w + c->basew, c->minw);
409 *h = MAX(*h + c->baseh, c->minh);
410 if (c->maxw)
411 *w = MIN(*w, c->maxw);
412 if (c->maxh)
413 *h = MIN(*h, c->maxh);
414 }
415 return *x != c->x || *y != c->y || *w != c->w || *h != c->h;
416}
417
418void
419arrange(Monitor *m)
420{
421 if (m)
422 showhide(m->stack);
423 else for (m = mons; m; m = m->next)
424 showhide(m->stack);
425 if (m) {
426 arrangemon(m);
427 restack(m);
428 } else for (m = mons; m; m = m->next)
429 arrangemon(m);
430}
431
432void
433arrangemon(Monitor *m)
434{
435 strncpy(m->ltsymbol, m->lt[m->sellt]->symbol, sizeof m->ltsymbol);
436 if (m->lt[m->sellt]->arrange)
437 m->lt[m->sellt]->arrange(m);
438}
439
440void
441attach(Client *c)
442{
443 c->next = c->mon->clients;
444 c->mon->clients = c;
445}
446
447void
448attachstack(Client *c)
449{
450 c->snext = c->mon->stack;
451 c->mon->stack = c;
452}
453
454void
455buttonpress(XEvent *e)
456{
457 unsigned int i, x, click;
458 Arg arg = {0};
459 Client *c;
460 Monitor *m;
461 XButtonPressedEvent *ev = &e->xbutton;
462
463 click = ClkRootWin;
464 /* focus monitor if necessary */
465 if ((m = wintomon(ev->window)) && m != selmon) {
466 unfocus(selmon->sel, 1);
467 selmon = m;
468 focus(NULL);
469 }
470 if (ev->window == selmon->barwin) {
471 i = x = 0;
472 do
473 x += TEXTW(tags[i]);
474 while (ev->x >= x && ++i < LENGTH(tags));
475 if (i < LENGTH(tags)) {
476 click = ClkTagBar;
477 arg.ui = 1 << i;
478 } else if (ev->x < x + TEXTW(selmon->ltsymbol))
479 click = ClkLtSymbol;
480 else if (ev->x > selmon->ww - (int)TEXTW(stext) - getsystraywidth())
481 click = ClkStatusText;
482 else
483 click = ClkWinTitle;
484 } else if ((c = wintoclient(ev->window))) {
485 focus(c);
486 restack(selmon);
487 XAllowEvents(dpy, ReplayPointer, CurrentTime);
488 click = ClkClientWin;
489 }
490 for (i = 0; i < LENGTH(buttons); i++)
491 if (click == buttons[i].click && buttons[i].func && buttons[i].button == ev->button
492 && CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
493 buttons[i].func(click == ClkTagBar && buttons[i].arg.i == 0 ? &arg : &buttons[i].arg);
494}
495
496void
497checkotherwm(void)
498{
499 xerrorxlib = XSetErrorHandler(xerrorstart);
500 /* this causes an error if some other window manager is running */
501 XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask);
502 XSync(dpy, False);
503 XSetErrorHandler(xerror);
504 XSync(dpy, False);
505}
506
507void
508cleanup(void)
509{
510 Arg a = {.ui = ~0};
511 Layout foo = { "", NULL };
512 Monitor *m;
513 size_t i;
514
515 view(&a);
516 selmon->lt[selmon->sellt] = &foo;
517 for (m = mons; m; m = m->next)
518 while (m->stack)
519 unmanage(m->stack, 0);
520 XUngrabKey(dpy, AnyKey, AnyModifier, root);
521 while (mons)
522 cleanupmon(mons);
523
524 if (showsystray) {
525 XUnmapWindow(dpy, systray->win);
526 XDestroyWindow(dpy, systray->win);
527 free(systray);
528 }
529
530 for (i = 0; i < CurLast; i++)
531 drw_cur_free(drw, cursor[i]);
532 for (i = 0; i < LENGTH(colors); i++)
533 free(scheme[i]);
534 free(scheme);
535 XDestroyWindow(dpy, wmcheckwin);
536 drw_free(drw);
537 XSync(dpy, False);
538 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
539 XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
540}
541
542void
543cleanupmon(Monitor *mon)
544{
545 Monitor *m;
546
547 if (mon == mons)
548 mons = mons->next;
549 else {
550 for (m = mons; m && m->next != mon; m = m->next);
551 m->next = mon->next;
552 }
553 XUnmapWindow(dpy, mon->barwin);
554 XDestroyWindow(dpy, mon->barwin);
555 free(mon);
556}
557
558void
559clientmessage(XEvent *e)
560{
561 XWindowAttributes wa;
562 XSetWindowAttributes swa;
563 XClientMessageEvent *cme = &e->xclient;
564 Client *c = wintoclient(cme->window);
565
566 if (showsystray && cme->window == systray->win && cme->message_type == netatom[NetSystemTrayOP]) {
567 /* add systray icons */
568 if (cme->data.l[1] == SYSTEM_TRAY_REQUEST_DOCK) {
569 if (!(c = (Client *)calloc(1, sizeof(Client))))
570 die("fatal: could not malloc() %u bytes\n", sizeof(Client));
571 if (!(c->win = cme->data.l[2])) {
572 free(c);
573 return;
574 }
575 c->mon = selmon;
576 c->next = systray->icons;
577 systray->icons = c;
578 if (!XGetWindowAttributes(dpy, c->win, &wa)) {
579 /* use sane defaults */
580 wa.width = bh;
581 wa.height = bh;
582 wa.border_width = 0;
583 }
584 c->x = c->oldx = c->y = c->oldy = 0;
585 c->w = c->oldw = wa.width;
586 c->h = c->oldh = wa.height;
587 c->oldbw = wa.border_width;
588 c->bw = 0;
589 c->isfloating = True;
590 /* reuse tags field as mapped status */
591 c->tags = 1;
592 updatesizehints(c);
593 updatesystrayicongeom(c, wa.width, wa.height);
594 XAddToSaveSet(dpy, c->win);
595 XSelectInput(dpy, c->win, StructureNotifyMask | PropertyChangeMask | ResizeRedirectMask);
596 XReparentWindow(dpy, c->win, systray->win, 0, 0);
597 /* use parents background color */
598 swa.background_pixel = scheme[SchemeNorm][ColBg].pixel;
599 XChangeWindowAttributes(dpy, c->win, CWBackPixel, &swa);
600 sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_EMBEDDED_NOTIFY, 0 , systray->win, XEMBED_EMBEDDED_VERSION);
601 /* FIXME not sure if I have to send these events, too */
602 sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_FOCUS_IN, 0 , systray->win, XEMBED_EMBEDDED_VERSION);
603 sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_WINDOW_ACTIVATE, 0 , systray->win, XEMBED_EMBEDDED_VERSION);
604 sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_MODALITY_ON, 0 , systray->win, XEMBED_EMBEDDED_VERSION);
605 XSync(dpy, False);
606 resizebarwin(selmon);
607 updatesystray();
608 setclientstate(c, NormalState);
609 }
610 return;
611 }
612
613 if (!c)
614 return;
615 if (cme->message_type == netatom[NetWMState]) {
616 if (cme->data.l[1] == netatom[NetWMFullscreen]
617 || cme->data.l[2] == netatom[NetWMFullscreen])
618 setfullscreen(c, (cme->data.l[0] == 1 /* _NET_WM_STATE_ADD */
619 || (cme->data.l[0] == 2 /* _NET_WM_STATE_TOGGLE */ && !c->isfullscreen)));
620 } else if (cme->message_type == netatom[NetActiveWindow]) {
621 if (c != selmon->sel && !c->isurgent)
622 seturgent(c, 1);
623 }
624}
625
626void
627configure(Client *c)
628{
629 XConfigureEvent ce;
630
631 ce.type = ConfigureNotify;
632 ce.display = dpy;
633 ce.event = c->win;
634 ce.window = c->win;
635 ce.x = c->x;
636 ce.y = c->y;
637 ce.width = c->w;
638 ce.height = c->h;
639 ce.border_width = c->bw;
640 ce.above = None;
641 ce.override_redirect = False;
642 XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce);
643}
644
645void
646configurenotify(XEvent *e)
647{
648 Monitor *m;
649 Client *c;
650 XConfigureEvent *ev = &e->xconfigure;
651 int dirty;
652
653 /* TODO: updategeom handling sucks, needs to be simplified */
654 if (ev->window == root) {
655 dirty = (sw != ev->width || sh != ev->height);
656 sw = ev->width;
657 sh = ev->height;
658 if (updategeom() || dirty) {
659 drw_resize(drw, sw, bh);
660 updatebars();
661 for (m = mons; m; m = m->next) {
662 for (c = m->clients; c; c = c->next)
663 if (c->isfullscreen)
664 resizeclient(c, m->mx, m->my, m->mw, m->mh);
665 resizebarwin(m);
666 }
667 focus(NULL);
668 arrange(NULL);
669 }
670 }
671}
672
673void
674configurerequest(XEvent *e)
675{
676 Client *c;
677 Monitor *m;
678 XConfigureRequestEvent *ev = &e->xconfigurerequest;
679 XWindowChanges wc;
680
681 if ((c = wintoclient(ev->window))) {
682 if (ev->value_mask & CWBorderWidth)
683 c->bw = ev->border_width;
684 else if (c->isfloating || !selmon->lt[selmon->sellt]->arrange) {
685 m = c->mon;
686 if (ev->value_mask & CWX) {
687 c->oldx = c->x;
688 c->x = m->mx + ev->x;
689 }
690 if (ev->value_mask & CWY) {
691 c->oldy = c->y;
692 c->y = m->my + ev->y;
693 }
694 if (ev->value_mask & CWWidth) {
695 c->oldw = c->w;
696 c->w = ev->width;
697 }
698 if (ev->value_mask & CWHeight) {
699 c->oldh = c->h;
700 c->h = ev->height;
701 }
702 if ((c->x + c->w) > m->mx + m->mw && c->isfloating)
703 c->x = m->mx + (m->mw / 2 - WIDTH(c) / 2); /* center in x direction */
704 if ((c->y + c->h) > m->my + m->mh && c->isfloating)
705 c->y = m->my + (m->mh / 2 - HEIGHT(c) / 2); /* center in y direction */
706 if ((ev->value_mask & (CWX|CWY)) && !(ev->value_mask & (CWWidth|CWHeight)))
707 configure(c);
708 if (ISVISIBLE(c))
709 XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
710 } else
711 configure(c);
712 } else {
713 wc.x = ev->x;
714 wc.y = ev->y;
715 wc.width = ev->width;
716 wc.height = ev->height;
717 wc.border_width = ev->border_width;
718 wc.sibling = ev->above;
719 wc.stack_mode = ev->detail;
720 XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
721 }
722 XSync(dpy, False);
723}
724
725Monitor *
726createmon(void)
727{
728 Monitor *m;
729
730 m = ecalloc(1, sizeof(Monitor));
731 m->tagset[0] = m->tagset[1] = 1;
732 m->mfact = mfact;
733 m->nmaster = nmaster;
734 m->showbar = showbar;
735 m->topbar = topbar;
736 m->lt[0] = &layouts[0];
737 m->lt[1] = &layouts[1 % LENGTH(layouts)];
738 strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol);
739 return m;
740}
741
742void
743cyclelayout(const Arg *arg) {
744 Layout *l;
745 for(l = (Layout *)layouts; l != selmon->lt[selmon->sellt]; l++);
746 if(arg->i > 0) {
747 if(l->symbol && (l + 1)->symbol)
748 setlayout(&((Arg) { .v = (l + 1) }));
749 else
750 setlayout(&((Arg) { .v = layouts }));
751 } else {
752 if(l != layouts && (l - 1)->symbol)
753 setlayout(&((Arg) { .v = (l - 1) }));
754 else
755 setlayout(&((Arg) { .v = &layouts[LENGTH(layouts) - 2] }));
756 }
757}
758
759void
760destroynotify(XEvent *e)
761{
762 Client *c;
763 XDestroyWindowEvent *ev = &e->xdestroywindow;
764
765 if ((c = wintoclient(ev->window)))
766 unmanage(c, 1);
767 else if ((c = wintosystrayicon(ev->window))) {
768 removesystrayicon(c);
769 resizebarwin(selmon);
770 updatesystray();
771 }
772}
773
774void
775detach(Client *c)
776{
777 Client **tc;
778
779 for (tc = &c->mon->clients; *tc && *tc != c; tc = &(*tc)->next);
780 *tc = c->next;
781}
782
783void
784detachstack(Client *c)
785{
786 Client **tc, *t;
787
788 for (tc = &c->mon->stack; *tc && *tc != c; tc = &(*tc)->snext);
789 *tc = c->snext;
790
791 if (c == c->mon->sel) {
792 for (t = c->mon->stack; t && !ISVISIBLE(t); t = t->snext);
793 c->mon->sel = t;
794 }
795}
796
797Monitor *
798dirtomon(int dir)
799{
800 Monitor *m = NULL;
801
802 if (dir > 0) {
803 if (!(m = selmon->next))
804 m = mons;
805 } else if (selmon == mons)
806 for (m = mons; m->next; m = m->next);
807 else
808 for (m = mons; m->next != selmon; m = m->next);
809 return m;
810}
811
812int
813statuswidth(void) {
814 char* ts;
815 int tw = 0;
816
817 tw = TEXTW(stext);
818 for (ts = stext; *ts; ts++) {
819 if ((unsigned int)*ts <= LENGTH(colors))
820 tw += lrpad;
821 }
822
823// tw -= lrpad;
824
825 return tw;
826}
827
828void
829drawbar(Monitor *m)
830{
831 int x, w, tw = 0, stw = 0;
832 int boxs = drw->fonts->h / 9;
833 int boxw = drw->fonts->h / 6 + 2;
834 unsigned int i, occ = 0, urg = 0;
835 char *ts = stext;
836 char *tp = stext;
837 int tx = 0;
838 char ctmp;
839 Client *c;
840
841 if (!m->showbar)
842 return;
843
844 /* draw status first so it can be overdrawn by tags later */
845 if (m == selmon) { /* status is only drawn on selected monitor */
846 drw_setscheme(drw, scheme[SchemeNorm]);
847 tw = statuswidth();
848 ts = stext;
849 while (1) {
850 if ((unsigned int)*ts > LENGTH(colors)) { ts++; continue ; }
851 ctmp = *ts;
852 *ts = '\0';
853 drw_text(drw, m->ww - tw + tx - getsystraywidth(), 0, tw - tx, bh, lrpad / 2, tp, 0);
854 tx += TEXTW(tp);
855 if (ctmp == '\0') { break; }
856 drw_setscheme(drw, scheme[(unsigned int)(ctmp-1)]);
857 *ts = ctmp;
858 tp = ++ts;
859 }
860 }
861
862 for (c = m->clients; c; c = c->next) {
863 occ |= c->tags;
864 if (c->isurgent)
865 urg |= c->tags;
866 }
867 x = 0;
868 for (i = 0; i < LENGTH(tags); i++) {
869 w = TEXTW(tags[i]);
870 drw_setscheme(drw, scheme[m->tagset[m->seltags] & 1 << i ? SchemeSel : SchemeNorm]);
871 drw_text(drw, x, 0, w, bh, lrpad / 2, tags[i], urg & 1 << i);
872 if (occ & 1 << i)
873 drw_rect(drw, x + boxw, 0, w - ( 2 * boxw + 1), boxw,
874 m == selmon && selmon->sel && selmon->sel->tags & 1 << i,
875 urg & 1 << i);
876
877 x += w;
878 }
879 w = TEXTW(m->ltsymbol);
880 drw_setscheme(drw, scheme[SchemeNorm]);
881 x = drw_text(drw, x, 0, w, bh, lrpad / 2, m->ltsymbol, 0);
882
883 if ((w = m->ww - tw - stw - x - getsystraywidth()) > bh) {
884 if (m->sel) {
885 drw_setscheme(drw, scheme[m == selmon ? SchemeSel : SchemeNorm]);
886 drw_text(drw, x, 0, w, bh, lrpad / 2, m->sel->name, 0);
887 if (m->sel->isfloating)
888 drw_rect(drw, x + boxs, boxs, boxw, boxw, m->sel->isfixed, 0);
889 } else {
890 drw_setscheme(drw, scheme[SchemeNorm]);
891 drw_rect(drw, x, 0, w, bh, 1, 1);
892 }
893 }
894 drw_map(drw, m->barwin, 0, 0, m->ww - stw, bh);
895}
896
897void
898drawbars(void)
899{
900 Monitor *m;
901
902 for (m = mons; m; m = m->next)
903 drawbar(m);
904}
905
906void
907enternotify(XEvent *e)
908{
909 Client *c;
910 Monitor *m;
911 XCrossingEvent *ev = &e->xcrossing;
912
913 if ((ev->mode != NotifyNormal || ev->detail == NotifyInferior) && ev->window != root)
914 return;
915 c = wintoclient(ev->window);
916 m = c ? c->mon : wintomon(ev->window);
917 if (m != selmon) {
918 unfocus(selmon->sel, 1);
919 selmon = m;
920 } else if (!c || c == selmon->sel)
921 return;
922 focus(c);
923}
924
925void
926expose(XEvent *e)
927{
928 Monitor *m;
929 XExposeEvent *ev = &e->xexpose;
930
931 if (ev->count == 0 && (m = wintomon(ev->window))) {
932 drawbar(m);
933 if (m == selmon)
934 updatesystray();
935 }
936}
937
938void
939focus(Client *c)
940{
941 if (!c || !ISVISIBLE(c))
942 for (c = selmon->stack; c && !ISVISIBLE(c); c = c->snext);
943 if (selmon->sel && selmon->sel != c)
944 unfocus(selmon->sel, 0);
945 if (c) {
946 if (c->mon != selmon)
947 selmon = c->mon;
948 if (c->isurgent)
949 seturgent(c, 0);
950 detachstack(c);
951 attachstack(c);
952 grabbuttons(c, 1);
953 XSetWindowBorder(dpy, c->win, scheme[SchemeSel][ColBorder].pixel);
954 setfocus(c);
955 } else {
956 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
957 XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
958 }
959 selmon->sel = c;
960 drawbars();
961}
962
963/* there are some broken focus acquiring clients needing extra handling */
964void
965focusin(XEvent *e)
966{
967 XFocusChangeEvent *ev = &e->xfocus;
968
969 if (selmon->sel && ev->window != selmon->sel->win)
970 setfocus(selmon->sel);
971}
972
973void
974focusmon(const Arg *arg)
975{
976 Monitor *m;
977
978 if (!mons->next)
979 return;
980 if ((m = dirtomon(arg->i)) == selmon)
981 return;
982 unfocus(selmon->sel, 0);
983 selmon = m;
984 focus(NULL);
985}
986
987void
988focusstack(const Arg *arg)
989{
990 Client *c = NULL, *i;
991
992 if (!selmon->sel || (selmon->sel->isfullscreen && lockfullscreen))
993 return;
994 if (arg->i > 0) {
995 for (c = selmon->sel->next; c && !ISVISIBLE(c); c = c->next);
996 if (!c)
997 for (c = selmon->clients; c && !ISVISIBLE(c); c = c->next);
998 } else {
999 for (i = selmon->clients; i != selmon->sel; i = i->next)
1000 if (ISVISIBLE(i))
1001 c = i;
1002 if (!c)
1003 for (; i; i = i->next)
1004 if (ISVISIBLE(i))
1005 c = i;
1006 }
1007 if (c) {
1008 focus(c);
1009 restack(selmon);
1010 }
1011}
1012
1013Atom
1014getatomprop(Client *c, Atom prop)
1015{
1016 int di;
1017 unsigned long dl;
1018 unsigned char *p = NULL;
1019 Atom da, atom = None;
1020
1021 /* FIXME getatomprop should return the number of items and a pointer to
1022 * the stored data instead of this workaround */
1023 Atom req = XA_ATOM;
1024 if (prop == xatom[XembedInfo])
1025 req = xatom[XembedInfo];
1026
1027 if (XGetWindowProperty(dpy, c->win, prop, 0L, sizeof atom, False, req,
1028 &da, &di, &dl, &dl, &p) == Success && p) {
1029 atom = *(Atom *)p;
1030 if (da == xatom[XembedInfo] && dl == 2)
1031 atom = ((Atom *)p)[1];
1032 XFree(p);
1033 }
1034 return atom;
1035}
1036
1037unsigned int
1038getsystraywidth()
1039{
1040 unsigned int w = 0;
1041 Client *i;
1042 if(showsystray)
1043 for(i = systray->icons; i; w += i->w + systrayspacing, i = i->next) ;
1044 return w ? w + systrayspacing : 1;
1045}
1046
1047int
1048getrootptr(int *x, int *y)
1049{
1050 int di;
1051 unsigned int dui;
1052 Window dummy;
1053
1054 return XQueryPointer(dpy, root, &dummy, &dummy, x, y, &di, &di, &dui);
1055}
1056
1057long
1058getstate(Window w)
1059{
1060 int format;
1061 long result = -1;
1062 unsigned char *p = NULL;
1063 unsigned long n, extra;
1064 Atom real;
1065
1066 if (XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState],
1067 &real, &format, &n, &extra, (unsigned char **)&p) != Success)
1068 return -1;
1069 if (n != 0)
1070 result = *p;
1071 XFree(p);
1072 return result;
1073}
1074
1075int
1076gettextprop(Window w, Atom atom, char *text, unsigned int size)
1077{
1078 char **list = NULL;
1079 int n;
1080 XTextProperty name;
1081
1082 if (!text || size == 0)
1083 return 0;
1084 text[0] = '\0';
1085 if (!XGetTextProperty(dpy, w, &name, atom) || !name.nitems)
1086 return 0;
1087 if (name.encoding == XA_STRING) {
1088 strncpy(text, (char *)name.value, size - 1);
1089 } else if (XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success && n > 0 && *list) {
1090 strncpy(text, *list, size - 1);
1091 XFreeStringList(list);
1092 }
1093 text[size - 1] = '\0';
1094 XFree(name.value);
1095 return 1;
1096}
1097
1098void
1099grabbuttons(Client *c, int focused)
1100{
1101 updatenumlockmask();
1102 {
1103 unsigned int i, j;
1104 unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
1105 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
1106 if (!focused)
1107 XGrabButton(dpy, AnyButton, AnyModifier, c->win, False,
1108 BUTTONMASK, GrabModeSync, GrabModeSync, None, None);
1109 for (i = 0; i < LENGTH(buttons); i++)
1110 if (buttons[i].click == ClkClientWin)
1111 for (j = 0; j < LENGTH(modifiers); j++)
1112 XGrabButton(dpy, buttons[i].button,
1113 buttons[i].mask | modifiers[j],
1114 c->win, False, BUTTONMASK,
1115 GrabModeAsync, GrabModeSync, None, None);
1116 }
1117}
1118
1119void
1120grabkeys(void)
1121{
1122 updatenumlockmask();
1123 {
1124 unsigned int i, j, k;
1125 unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
1126 int start, end, skip;
1127 KeySym *syms;
1128
1129 XUngrabKey(dpy, AnyKey, AnyModifier, root);
1130 XDisplayKeycodes(dpy, &start, &end);
1131 syms = XGetKeyboardMapping(dpy, start, end - start + 1, &skip);
1132 if (!syms)
1133 return;
1134 for (k = start; k <= end; k++)
1135 for (i = 0; i < LENGTH(keys); i++)
1136 /* skip modifier codes, we do that ourselves */
1137 if (keys[i].keysym == syms[(k - start) * skip])
1138 for (j = 0; j < LENGTH(modifiers); j++)
1139 XGrabKey(dpy, k,
1140 keys[i].mod | modifiers[j],
1141 root, True,
1142 GrabModeAsync, GrabModeAsync);
1143 XFree(syms);
1144 }
1145}
1146
1147void
1148incnmaster(const Arg *arg)
1149{
1150 selmon->nmaster = MAX(selmon->nmaster + arg->i, 0);
1151 arrange(selmon);
1152}
1153
1154#ifdef XINERAMA
1155static int
1156isuniquegeom(XineramaScreenInfo *unique, size_t n, XineramaScreenInfo *info)
1157{
1158 while (n--)
1159 if (unique[n].x_org == info->x_org && unique[n].y_org == info->y_org
1160 && unique[n].width == info->width && unique[n].height == info->height)
1161 return 0;
1162 return 1;
1163}
1164#endif /* XINERAMA */
1165
1166void
1167keypress(XEvent *e)
1168{
1169 unsigned int i;
1170 KeySym keysym;
1171 XKeyEvent *ev;
1172
1173 ev = &e->xkey;
1174 keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
1175 for (i = 0; i < LENGTH(keys); i++)
1176 if (keysym == keys[i].keysym
1177 && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
1178 && keys[i].func)
1179 keys[i].func(&(keys[i].arg));
1180}
1181
1182void
1183killclient(const Arg *arg)
1184{
1185 if (!selmon->sel)
1186 return;
1187
1188 if (!sendevent(selmon->sel->win, wmatom[WMDelete], NoEventMask, wmatom[WMDelete], CurrentTime, 0 , 0, 0)) {
1189 XGrabServer(dpy);
1190 XSetErrorHandler(xerrordummy);
1191 XSetCloseDownMode(dpy, DestroyAll);
1192 XKillClient(dpy, selmon->sel->win);
1193 XSync(dpy, False);
1194 XSetErrorHandler(xerror);
1195 XUngrabServer(dpy);
1196 }
1197}
1198
1199void
1200manage(Window w, XWindowAttributes *wa)
1201{
1202 Client *c, *t = NULL;
1203 Window trans = None;
1204 XWindowChanges wc;
1205
1206 c = ecalloc(1, sizeof(Client));
1207 c->win = w;
1208 /* geometry */
1209 c->x = c->oldx = wa->x;
1210 c->y = c->oldy = wa->y;
1211 c->w = c->oldw = wa->width;
1212 c->h = c->oldh = wa->height;
1213 c->oldbw = wa->border_width;
1214
1215 updatetitle(c);
1216 if (XGetTransientForHint(dpy, w, &trans) && (t = wintoclient(trans))) {
1217 c->mon = t->mon;
1218 c->tags = t->tags;
1219 } else {
1220 c->mon = selmon;
1221 applyrules(c);
1222 }
1223
1224 if (c->x + WIDTH(c) > c->mon->wx + c->mon->ww)
1225 c->x = c->mon->wx + c->mon->ww - WIDTH(c);
1226 if (c->y + HEIGHT(c) > c->mon->wy + c->mon->wh)
1227 c->y = c->mon->wy + c->mon->wh - HEIGHT(c);
1228 c->x = MAX(c->x, c->mon->wx);
1229 c->y = MAX(c->y, c->mon->wy);
1230 c->bw = borderpx;
1231
1232 wc.border_width = c->bw;
1233 XConfigureWindow(dpy, w, CWBorderWidth, &wc);
1234 XSetWindowBorder(dpy, w, scheme[SchemeNorm][ColBorder].pixel);
1235 configure(c); /* propagates border_width, if size doesn't change */
1236 updatewindowtype(c);
1237 updatesizehints(c);
1238 updatewmhints(c);
1239 XSelectInput(dpy, w, EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask);
1240 grabbuttons(c, 0);
1241 if (!c->isfloating)
1242 c->isfloating = c->oldstate = trans != None || c->isfixed;
1243 if (c->isfloating)
1244 XRaiseWindow(dpy, c->win);
1245 attach(c);
1246 attachstack(c);
1247 XChangeProperty(dpy, root, netatom[NetClientList], XA_WINDOW, 32, PropModeAppend,
1248 (unsigned char *) &(c->win), 1);
1249 XMoveResizeWindow(dpy, c->win, c->x + 2 * sw, c->y, c->w, c->h); /* some windows require this */
1250 setclientstate(c, NormalState);
1251 if (c->mon == selmon)
1252 unfocus(selmon->sel, 0);
1253 c->mon->sel = c;
1254 arrange(c->mon);
1255 XMapWindow(dpy, c->win);
1256 focus(NULL);
1257}
1258
1259void
1260mappingnotify(XEvent *e)
1261{
1262 XMappingEvent *ev = &e->xmapping;
1263
1264 XRefreshKeyboardMapping(ev);
1265 if (ev->request == MappingKeyboard)
1266 grabkeys();
1267}
1268
1269void
1270maprequest(XEvent *e)
1271{
1272 static XWindowAttributes wa;
1273 XMapRequestEvent *ev = &e->xmaprequest;
1274
1275 Client *i;
1276 if ((i = wintosystrayicon(ev->window))) {
1277 sendevent(i->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_WINDOW_ACTIVATE, 0, systray->win, XEMBED_EMBEDDED_VERSION);
1278 resizebarwin(selmon);
1279 updatesystray();
1280 }
1281
1282 if (!XGetWindowAttributes(dpy, ev->window, &wa) || wa.override_redirect)
1283 return;
1284 if (!wintoclient(ev->window))
1285 manage(ev->window, &wa);
1286}
1287
1288void
1289monocle(Monitor *m)
1290{
1291 unsigned int n = 0;
1292 Client *c;
1293
1294 for (c = m->clients; c; c = c->next)
1295 if (ISVISIBLE(c))
1296 n++;
1297 if (n > 0) /* override layout symbol */
1298 snprintf(m->ltsymbol, sizeof m->ltsymbol, "[%d]", n);
1299 for (c = nexttiled(m->clients); c; c = nexttiled(c->next))
1300 resize(c, m->wx, m->wy, m->ww - 2 * c->bw, m->wh - 2 * c->bw, 0);
1301}
1302
1303void
1304motionnotify(XEvent *e)
1305{
1306 static Monitor *mon = NULL;
1307 Monitor *m;
1308 XMotionEvent *ev = &e->xmotion;
1309
1310 if (ev->window != root)
1311 return;
1312 if ((m = recttomon(ev->x_root, ev->y_root, 1, 1)) != mon && mon) {
1313 unfocus(selmon->sel, 1);
1314 selmon = m;
1315 focus(NULL);
1316 }
1317 mon = m;
1318}
1319
1320void
1321movemouse(const Arg *arg)
1322{
1323 int x, y, ocx, ocy, nx, ny;
1324 Client *c;
1325 Monitor *m;
1326 XEvent ev;
1327 Time lasttime = 0;
1328
1329 if (!(c = selmon->sel))
1330 return;
1331 if (c->isfullscreen) /* no support moving fullscreen windows by mouse */
1332 return;
1333 restack(selmon);
1334 ocx = c->x;
1335 ocy = c->y;
1336 if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
1337 None, cursor[CurMove]->cursor, CurrentTime) != GrabSuccess)
1338 return;
1339 if (!getrootptr(&x, &y))
1340 return;
1341 do {
1342 XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
1343 switch(ev.type) {
1344 case ConfigureRequest:
1345 case Expose:
1346 case MapRequest:
1347 handler[ev.type](&ev);
1348 break;
1349 case MotionNotify:
1350 if ((ev.xmotion.time - lasttime) <= (1000 / 60))
1351 continue;
1352 lasttime = ev.xmotion.time;
1353
1354 nx = ocx + (ev.xmotion.x - x);
1355 ny = ocy + (ev.xmotion.y - y);
1356 if (abs(selmon->wx - nx) < snap)
1357 nx = selmon->wx;
1358 else if (abs((selmon->wx + selmon->ww) - (nx + WIDTH(c))) < snap)
1359 nx = selmon->wx + selmon->ww - WIDTH(c);
1360 if (abs(selmon->wy - ny) < snap)
1361 ny = selmon->wy;
1362 else if (abs((selmon->wy + selmon->wh) - (ny + HEIGHT(c))) < snap)
1363 ny = selmon->wy + selmon->wh - HEIGHT(c);
1364 if (!c->isfloating && selmon->lt[selmon->sellt]->arrange
1365 && (abs(nx - c->x) > snap || abs(ny - c->y) > snap))
1366 togglefloating(NULL);
1367 if (!selmon->lt[selmon->sellt]->arrange || c->isfloating)
1368 resize(c, nx, ny, c->w, c->h, 1);
1369 break;
1370 }
1371 } while (ev.type != ButtonRelease);
1372 XUngrabPointer(dpy, CurrentTime);
1373 if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) {
1374 sendmon(c, m);
1375 selmon = m;
1376 focus(NULL);
1377 }
1378}
1379
1380Client *
1381nexttiled(Client *c)
1382{
1383 for (; c && (c->isfloating || !ISVISIBLE(c)); c = c->next);
1384 return c;
1385}
1386
1387void
1388pop(Client *c)
1389{
1390 detach(c);
1391 attach(c);
1392 focus(c);
1393 arrange(c->mon);
1394}
1395
1396void
1397propertynotify(XEvent *e)
1398{
1399 Client *c;
1400 Window trans;
1401 XPropertyEvent *ev = &e->xproperty;
1402
1403 if ((c = wintosystrayicon(ev->window))) {
1404 if (ev->atom == XA_WM_NORMAL_HINTS) {
1405 updatesizehints(c);
1406 updatesystrayicongeom(c, c->w, c->h);
1407 }
1408 else
1409 updatesystrayiconstate(c, ev);
1410 resizebarwin(selmon);
1411 updatesystray();
1412 }
1413
1414 if ((ev->window == root) && (ev->atom == XA_WM_NAME))
1415 updatestatus();
1416 else if (ev->state == PropertyDelete)
1417 return; /* ignore */
1418 else if ((c = wintoclient(ev->window))) {
1419 switch(ev->atom) {
1420 default: break;
1421 case XA_WM_TRANSIENT_FOR:
1422 if (!c->isfloating && (XGetTransientForHint(dpy, c->win, &trans)) &&
1423 (c->isfloating = (wintoclient(trans)) != NULL))
1424 arrange(c->mon);
1425 break;
1426 case XA_WM_NORMAL_HINTS:
1427 c->hintsvalid = 0;
1428 break;
1429 case XA_WM_HINTS:
1430 updatewmhints(c);
1431 drawbars();
1432 break;
1433 }
1434 if (ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
1435 updatetitle(c);
1436 if (c == c->mon->sel)
1437 drawbar(c->mon);
1438 }
1439 if (ev->atom == netatom[NetWMWindowType])
1440 updatewindowtype(c);
1441 }
1442}
1443
1444void
1445quit(const Arg *arg)
1446{
1447 running = 0;
1448}
1449
1450Monitor *
1451recttomon(int x, int y, int w, int h)
1452{
1453 Monitor *m, *r = selmon;
1454 int a, area = 0;
1455
1456 for (m = mons; m; m = m->next)
1457 if ((a = INTERSECT(x, y, w, h, m)) > area) {
1458 area = a;
1459 r = m;
1460 }
1461 return r;
1462}
1463
1464void
1465removesystrayicon(Client *i)
1466{
1467 Client **ii;
1468
1469 if (!showsystray || !i)
1470 return;
1471 for (ii = &systray->icons; *ii && *ii != i; ii = &(*ii)->next);
1472 if (ii)
1473 *ii = i->next;
1474 free(i);
1475}
1476
1477void
1478resize(Client *c, int x, int y, int w, int h, int interact)
1479{
1480 if (applysizehints(c, &x, &y, &w, &h, interact))
1481 resizeclient(c, x, y, w, h);
1482}
1483
1484void
1485resizebarwin(Monitor *m) {
1486 unsigned int w = m->ww;
1487 if (showsystray && m == systraytomon(m) && !systrayonleft)
1488 w -= getsystraywidth();
1489 XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, w, bh);
1490}
1491
1492void
1493resizeclient(Client *c, int x, int y, int w, int h)
1494{
1495 XWindowChanges wc;
1496
1497 c->oldx = c->x; c->x = wc.x = x;
1498 c->oldy = c->y; c->y = wc.y = y;
1499 c->oldw = c->w; c->w = wc.width = w;
1500 c->oldh = c->h; c->h = wc.height = h;
1501 wc.border_width = c->bw;
1502 XConfigureWindow(dpy, c->win, CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc);
1503 configure(c);
1504 XSync(dpy, False);
1505}
1506
1507void
1508resizerequest(XEvent *e)
1509{
1510 XResizeRequestEvent *ev = &e->xresizerequest;
1511 Client *i;
1512
1513 if ((i = wintosystrayicon(ev->window))) {
1514 updatesystrayicongeom(i, ev->width, ev->height);
1515 resizebarwin(selmon);
1516 updatesystray();
1517 }
1518}
1519
1520void
1521resizemouse(const Arg *arg)
1522{
1523 int ocx, ocy, nw, nh;
1524 Client *c;
1525 Monitor *m;
1526 XEvent ev;
1527 Time lasttime = 0;
1528
1529 if (!(c = selmon->sel))
1530 return;
1531 if (c->isfullscreen) /* no support resizing fullscreen windows by mouse */
1532 return;
1533 restack(selmon);
1534 ocx = c->x;
1535 ocy = c->y;
1536 if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
1537 None, cursor[CurResize]->cursor, CurrentTime) != GrabSuccess)
1538 return;
1539 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
1540 do {
1541 XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
1542 switch(ev.type) {
1543 case ConfigureRequest:
1544 case Expose:
1545 case MapRequest:
1546 handler[ev.type](&ev);
1547 break;
1548 case MotionNotify:
1549 if ((ev.xmotion.time - lasttime) <= (1000 / 60))
1550 continue;
1551 lasttime = ev.xmotion.time;
1552
1553 nw = MAX(ev.xmotion.x - ocx - 2 * c->bw + 1, 1);
1554 nh = MAX(ev.xmotion.y - ocy - 2 * c->bw + 1, 1);
1555 if (c->mon->wx + nw >= selmon->wx && c->mon->wx + nw <= selmon->wx + selmon->ww
1556 && c->mon->wy + nh >= selmon->wy && c->mon->wy + nh <= selmon->wy + selmon->wh)
1557 {
1558 if (!c->isfloating && selmon->lt[selmon->sellt]->arrange
1559 && (abs(nw - c->w) > snap || abs(nh - c->h) > snap))
1560 togglefloating(NULL);
1561 }
1562 if (!selmon->lt[selmon->sellt]->arrange || c->isfloating)
1563 resize(c, c->x, c->y, nw, nh, 1);
1564 break;
1565 }
1566 } while (ev.type != ButtonRelease);
1567 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
1568 XUngrabPointer(dpy, CurrentTime);
1569 while (XCheckMaskEvent(dpy, EnterWindowMask, &ev));
1570 if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) {
1571 sendmon(c, m);
1572 selmon = m;
1573 focus(NULL);
1574 }
1575}
1576
1577void
1578restack(Monitor *m)
1579{
1580 Client *c;
1581 XEvent ev;
1582 XWindowChanges wc;
1583
1584 drawbar(m);
1585 if (!m->sel)
1586 return;
1587 if (m->sel->isfloating || !m->lt[m->sellt]->arrange)
1588 XRaiseWindow(dpy, m->sel->win);
1589 if (m->lt[m->sellt]->arrange) {
1590 wc.stack_mode = Below;
1591 wc.sibling = m->barwin;
1592 for (c = m->stack; c; c = c->snext)
1593 if (!c->isfloating && ISVISIBLE(c)) {
1594 XConfigureWindow(dpy, c->win, CWSibling|CWStackMode, &wc);
1595 wc.sibling = c->win;
1596 }
1597 }
1598 XSync(dpy, False);
1599 while (XCheckMaskEvent(dpy, EnterWindowMask, &ev));
1600}
1601
1602void
1603run(void)
1604{
1605 XEvent ev;
1606 /* main event loop */
1607 XSync(dpy, False);
1608 while (running && !XNextEvent(dpy, &ev))
1609 if (handler[ev.type])
1610 handler[ev.type](&ev); /* call handler */
1611}
1612
1613void
1614runautostart(void)
1615{
1616 char rcpath[PATH_MAX];
1617 char* home;
1618 pid_t pid;
1619
1620 if ((home = getenv("HOME")) == NULL) {
1621 home = "/";
1622 }
1623
1624 snprintf(rcpath, sizeof(rcpath), "%s/%s", home, dwmrc);
1625 if (access(rcpath, X_OK) != 0)
1626 return;
1627
1628again:
1629 if ((pid = fork()) == -1) {
1630 fprintf(stderr, "error: unable to fork for autostart, retrying...\n");
1631 sleep(3);
1632 goto again;
1633 }
1634
1635 if (pid == 0) { // child
1636
1637 execl(rcpath, rcpath, NULL);
1638 _exit(1);
1639 }
1640
1641 if (waitpid(pid, NULL, 0) == -1) {
1642 fprintf(stderr, "warn: unable to wait for autostart, probably still alive\n");
1643 }
1644}
1645
1646void
1647scan(void)
1648{
1649 unsigned int i, num;
1650 Window d1, d2, *wins = NULL;
1651 XWindowAttributes wa;
1652
1653 if (XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
1654 for (i = 0; i < num; i++) {
1655 if (!XGetWindowAttributes(dpy, wins[i], &wa)
1656 || wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
1657 continue;
1658 if (wa.map_state == IsViewable || getstate(wins[i]) == IconicState)
1659 manage(wins[i], &wa);
1660 }
1661 for (i = 0; i < num; i++) { /* now the transients */
1662 if (!XGetWindowAttributes(dpy, wins[i], &wa))
1663 continue;
1664 if (XGetTransientForHint(dpy, wins[i], &d1)
1665 && (wa.map_state == IsViewable || getstate(wins[i]) == IconicState))
1666 manage(wins[i], &wa);
1667 }
1668 if (wins)
1669 XFree(wins);
1670 }
1671}
1672
1673void
1674sendmon(Client *c, Monitor *m)
1675{
1676 if (c->mon == m)
1677 return;
1678 unfocus(c, 1);
1679 detach(c);
1680 detachstack(c);
1681 c->mon = m;
1682 c->tags = m->tagset[m->seltags]; /* assign tags of target monitor */
1683 attach(c);
1684 attachstack(c);
1685 focus(NULL);
1686 arrange(NULL);
1687}
1688
1689void
1690setclientstate(Client *c, long state)
1691{
1692 long data[] = { state, None };
1693
1694 XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,
1695 PropModeReplace, (unsigned char *)data, 2);
1696}
1697
1698int
1699sendevent(Window w, Atom proto, int mask, long d0, long d1, long d2, long d3, long d4)
1700{
1701 int n;
1702 Atom *protocols, mt;
1703 int exists = 0;
1704 XEvent ev;
1705
1706 if (proto == wmatom[WMTakeFocus] || proto == wmatom[WMDelete]) {
1707 mt = wmatom[WMProtocols];
1708 if (XGetWMProtocols(dpy, w, &protocols, &n)) {
1709 while (!exists && n--)
1710 exists = protocols[n] == proto;
1711 XFree(protocols);
1712 }
1713 }
1714 else {
1715 exists = True;
1716 mt = proto;
1717 }
1718
1719 if (exists) {
1720 ev.type = ClientMessage;
1721 ev.xclient.window = w;
1722 ev.xclient.message_type = mt;
1723 ev.xclient.format = 32;
1724 ev.xclient.data.l[0] = d0;
1725 ev.xclient.data.l[1] = d1;
1726 ev.xclient.data.l[2] = d2;
1727 ev.xclient.data.l[3] = d3;
1728 ev.xclient.data.l[4] = d4;
1729 XSendEvent(dpy, w, False, mask, &ev);
1730 }
1731 return exists;
1732}
1733
1734void
1735setfocus(Client *c)
1736{
1737 if (!c->neverfocus) {
1738 XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
1739 XChangeProperty(dpy, root, netatom[NetActiveWindow],
1740 XA_WINDOW, 32, PropModeReplace,
1741 (unsigned char *) &(c->win), 1);
1742 }
1743 sendevent(c->win, wmatom[WMTakeFocus], NoEventMask, wmatom[WMTakeFocus], CurrentTime, 0, 0, 0);
1744}
1745
1746void
1747setfullscreen(Client *c, int fullscreen)
1748{
1749 if (fullscreen && !c->isfullscreen) {
1750 XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
1751 PropModeReplace, (unsigned char*)&netatom[NetWMFullscreen], 1);
1752 c->isfullscreen = 1;
1753 c->oldstate = c->isfloating;
1754 c->oldbw = c->bw;
1755 c->bw = 0;
1756 c->isfloating = 1;
1757 resizeclient(c, c->mon->mx, c->mon->my, c->mon->mw, c->mon->mh);
1758 XRaiseWindow(dpy, c->win);
1759 } else if (!fullscreen && c->isfullscreen){
1760 XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
1761 PropModeReplace, (unsigned char*)0, 0);
1762 c->isfullscreen = 0;
1763 c->isfloating = c->oldstate;
1764 c->bw = c->oldbw;
1765 c->x = c->oldx;
1766 c->y = c->oldy;
1767 c->w = c->oldw;
1768 c->h = c->oldh;
1769 resizeclient(c, c->x, c->y, c->w, c->h);
1770 arrange(c->mon);
1771 }
1772}
1773
1774void
1775setlayout(const Arg *arg)
1776{
1777 if (!arg || !arg->v || arg->v != selmon->lt[selmon->sellt])
1778 selmon->sellt ^= 1;
1779 if (arg && arg->v)
1780 selmon->lt[selmon->sellt] = (Layout *)arg->v;
1781 strncpy(selmon->ltsymbol, selmon->lt[selmon->sellt]->symbol, sizeof selmon->ltsymbol);
1782 if (selmon->sel)
1783 arrange(selmon);
1784 else
1785 drawbar(selmon);
1786}
1787
1788/* arg > 1.0 will set mfact absolutely */
1789void
1790setmfact(const Arg *arg)
1791{
1792 float f;
1793
1794 if (!arg || !selmon->lt[selmon->sellt]->arrange)
1795 return;
1796 f = arg->f < 1.0 ? arg->f + selmon->mfact : arg->f - 1.0;
1797 if (f < 0.05 || f > 0.95)
1798 return;
1799 selmon->mfact = f;
1800 arrange(selmon);
1801}
1802
1803void
1804setup(void)
1805{
1806 int i;
1807 XSetWindowAttributes wa;
1808 Atom utf8string;
1809 struct sigaction sa;
1810
1811 /* do not transform children into zombies when they terminate */
1812 sigemptyset(&sa.sa_mask);
1813 sa.sa_flags = SA_NOCLDSTOP | SA_NOCLDWAIT | SA_RESTART;
1814 sa.sa_handler = SIG_IGN;
1815 sigaction(SIGCHLD, &sa, NULL);
1816
1817 /* clean up any zombies (inherited from .xinitrc etc) immediately */
1818 while (waitpid(-1, NULL, WNOHANG) > 0);
1819
1820 /* init screen */
1821 screen = DefaultScreen(dpy);
1822 sw = DisplayWidth(dpy, screen);
1823 sh = DisplayHeight(dpy, screen);
1824 root = RootWindow(dpy, screen);
1825 drw = drw_create(dpy, screen, root, sw, sh);
1826 if (!drw_fontset_create(drw, fonts, LENGTH(fonts)))
1827 die("no fonts could be loaded.");
1828 lrpad = drw->fonts->h + horizpadbar;
1829 bh = drw->fonts->h + vertpadbar;
1830 updategeom();
1831 /* init atoms */
1832 utf8string = XInternAtom(dpy, "UTF8_STRING", False);
1833 wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
1834 wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
1835 wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);
1836 wmatom[WMTakeFocus] = XInternAtom(dpy, "WM_TAKE_FOCUS", False);
1837 netatom[NetActiveWindow] = XInternAtom(dpy, "_NET_ACTIVE_WINDOW", False);
1838 netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
1839 netatom[NetSystemTray] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_S0", False);
1840 netatom[NetSystemTrayOP] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_OPCODE", False);
1841 netatom[NetSystemTrayOrientation] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_ORIENTATION", False);
1842 netatom[NetSystemTrayOrientationHorz] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_ORIENTATION_HORZ", False);
1843 netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
1844 netatom[NetWMState] = XInternAtom(dpy, "_NET_WM_STATE", False);
1845 netatom[NetWMCheck] = XInternAtom(dpy, "_NET_SUPPORTING_WM_CHECK", False);
1846 netatom[NetWMFullscreen] = XInternAtom(dpy, "_NET_WM_STATE_FULLSCREEN", False);
1847 netatom[NetWMWindowType] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False);
1848 netatom[NetWMWindowTypeDialog] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False);
1849 netatom[NetClientList] = XInternAtom(dpy, "_NET_CLIENT_LIST", False);
1850 xatom[Manager] = XInternAtom(dpy, "MANAGER", False);
1851 xatom[Xembed] = XInternAtom(dpy, "_XEMBED", False);
1852 xatom[XembedInfo] = XInternAtom(dpy, "_XEMBED_INFO", False);
1853 /* init cursors */
1854 cursor[CurNormal] = drw_cur_create(drw, XC_left_ptr);
1855 cursor[CurResize] = drw_cur_create(drw, XC_sizing);
1856 cursor[CurMove] = drw_cur_create(drw, XC_fleur);
1857 /* init appearance */
1858 scheme = ecalloc(LENGTH(colors), sizeof(Clr *));
1859 for (i = 0; i < LENGTH(colors); i++)
1860 scheme[i] = drw_scm_create(drw, colors[i], 3);
1861 /* init system tray */
1862 updatesystray();
1863 /* init bars */
1864 updatebars();
1865 updatestatus();
1866 /* supporting window for NetWMCheck */
1867 wmcheckwin = XCreateSimpleWindow(dpy, root, 0, 0, 1, 1, 0, 0, 0);
1868 XChangeProperty(dpy, wmcheckwin, netatom[NetWMCheck], XA_WINDOW, 32,
1869 PropModeReplace, (unsigned char *) &wmcheckwin, 1);
1870 XChangeProperty(dpy, wmcheckwin, netatom[NetWMName], utf8string, 8,
1871 PropModeReplace, (unsigned char *) "dwm", 3);
1872 XChangeProperty(dpy, root, netatom[NetWMCheck], XA_WINDOW, 32,
1873 PropModeReplace, (unsigned char *) &wmcheckwin, 1);
1874 /* EWMH support per view */
1875 XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
1876 PropModeReplace, (unsigned char *) netatom, NetLast);
1877 XDeleteProperty(dpy, root, netatom[NetClientList]);
1878 /* select events */
1879 wa.cursor = cursor[CurNormal]->cursor;
1880 wa.event_mask = SubstructureRedirectMask|SubstructureNotifyMask
1881 |ButtonPressMask|PointerMotionMask|EnterWindowMask
1882 |LeaveWindowMask|StructureNotifyMask|PropertyChangeMask;
1883 XChangeWindowAttributes(dpy, root, CWEventMask|CWCursor, &wa);
1884 XSelectInput(dpy, root, wa.event_mask);
1885 grabkeys();
1886 focus(NULL);
1887}
1888
1889void
1890seturgent(Client *c, int urg)
1891{
1892 XWMHints *wmh;
1893
1894 c->isurgent = urg;
1895 if (!(wmh = XGetWMHints(dpy, c->win)))
1896 return;
1897 wmh->flags = urg ? (wmh->flags | XUrgencyHint) : (wmh->flags & ~XUrgencyHint);
1898 XSetWMHints(dpy, c->win, wmh);
1899 XFree(wmh);
1900}
1901
1902void
1903showhide(Client *c)
1904{
1905 if (!c)
1906 return;
1907 if (ISVISIBLE(c)) {
1908 /* show clients top down */
1909 XMoveWindow(dpy, c->win, c->x, c->y);
1910 if ((!c->mon->lt[c->mon->sellt]->arrange || c->isfloating) && !c->isfullscreen)
1911 resize(c, c->x, c->y, c->w, c->h, 0);
1912 showhide(c->snext);
1913 } else {
1914 /* hide clients bottom up */
1915 showhide(c->snext);
1916 XMoveWindow(dpy, c->win, WIDTH(c) * -2, c->y);
1917 }
1918}
1919
1920void
1921spawn(const Arg *arg)
1922{
1923 struct sigaction sa;
1924
1925 if (fork() == 0) {
1926 if (dpy)
1927 close(ConnectionNumber(dpy));
1928 setsid();
1929
1930 sigemptyset(&sa.sa_mask);
1931 sa.sa_flags = 0;
1932 sa.sa_handler = SIG_DFL;
1933 sigaction(SIGCHLD, &sa, NULL);
1934
1935 execvp(((char **)arg->v)[0], (char **)arg->v);
1936 die("dwm: execvp '%s' failed:", ((char **)arg->v)[0]);
1937 }
1938}
1939
1940void
1941tag(const Arg *arg)
1942{
1943 if (selmon->sel && arg->ui & TAGMASK) {
1944 selmon->sel->tags = arg->ui & TAGMASK;
1945 focus(NULL);
1946 arrange(selmon);
1947 }
1948}
1949
1950void
1951tagmon(const Arg *arg)
1952{
1953 if (!selmon->sel || !mons->next)
1954 return;
1955 sendmon(selmon->sel, dirtomon(arg->i));
1956}
1957
1958void
1959tile(Monitor *m)
1960{
1961 unsigned int i, n, h, mw, my, ty;
1962 Client *c;
1963
1964 for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
1965 if (n == 0)
1966 return;
1967
1968 if (n > m->nmaster)
1969 mw = m->nmaster ? m->ww * m->mfact : 0;
1970 else
1971 mw = m->ww;
1972 for (i = my = ty = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
1973 if (i < m->nmaster) {
1974 h = (m->wh - my) / (MIN(n, m->nmaster) - i);
1975 resize(c, m->wx, m->wy + my, mw - (2*c->bw), h - (2*c->bw), 0);
1976 if (my + HEIGHT(c) < m->wh)
1977 my += HEIGHT(c);
1978 } else {
1979 h = (m->wh - ty) / (n - i);
1980 resize(c, m->wx + mw, m->wy + ty, m->ww - mw - (2*c->bw), h - (2*c->bw), 0);
1981 if (ty + HEIGHT(c) < m->wh)
1982 ty += HEIGHT(c);
1983 }
1984}
1985
1986void
1987togglebar(const Arg *arg)
1988{
1989 selmon->showbar = !selmon->showbar;
1990 updatebarpos(selmon);
1991 resizebarwin(selmon);
1992 if (showsystray) {
1993 XWindowChanges wc;
1994 if (!selmon->showbar)
1995 wc.y = -bh;
1996 else if (selmon->showbar) {
1997 wc.y = 0;
1998 if (!selmon->topbar)
1999 wc.y = selmon->mh - bh;
2000 }
2001 XConfigureWindow(dpy, systray->win, CWY, &wc);
2002 }
2003 arrange(selmon);
2004}
2005
2006void
2007togglefloating(const Arg *arg)
2008{
2009 if (!selmon->sel)
2010 return;
2011 if (selmon->sel->isfullscreen) /* no support for fullscreen windows */
2012 return;
2013 selmon->sel->isfloating = !selmon->sel->isfloating || selmon->sel->isfixed;
2014 if (selmon->sel->isfloating)
2015 resize(selmon->sel, selmon->sel->x, selmon->sel->y,
2016 selmon->sel->w, selmon->sel->h, 0);
2017 arrange(selmon);
2018}
2019
2020void
2021toggletag(const Arg *arg)
2022{
2023 unsigned int newtags;
2024
2025 if (!selmon->sel)
2026 return;
2027 newtags = selmon->sel->tags ^ (arg->ui & TAGMASK);
2028 if (newtags) {
2029 selmon->sel->tags = newtags;
2030 focus(NULL);
2031 arrange(selmon);
2032 }
2033}
2034
2035void
2036toggleview(const Arg *arg)
2037{
2038 unsigned int newtagset = selmon->tagset[selmon->seltags] ^ (arg->ui & TAGMASK);
2039
2040 if (newtagset) {
2041 selmon->tagset[selmon->seltags] = newtagset;
2042 focus(NULL);
2043 arrange(selmon);
2044 }
2045}
2046
2047void
2048unfocus(Client *c, int setfocus)
2049{
2050 if (!c)
2051 return;
2052 grabbuttons(c, 0);
2053 XSetWindowBorder(dpy, c->win, scheme[SchemeNorm][ColBorder].pixel);
2054 if (setfocus) {
2055 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
2056 XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
2057 }
2058}
2059
2060void
2061unmanage(Client *c, int destroyed)
2062{
2063 Monitor *m = c->mon;
2064 XWindowChanges wc;
2065
2066 detach(c);
2067 detachstack(c);
2068 if (!destroyed) {
2069 wc.border_width = c->oldbw;
2070 XGrabServer(dpy); /* avoid race conditions */
2071 XSetErrorHandler(xerrordummy);
2072 XSelectInput(dpy, c->win, NoEventMask);
2073 XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */
2074 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
2075 setclientstate(c, WithdrawnState);
2076 XSync(dpy, False);
2077 XSetErrorHandler(xerror);
2078 XUngrabServer(dpy);
2079 }
2080 free(c);
2081 focus(NULL);
2082 updateclientlist();
2083 arrange(m);
2084}
2085
2086void
2087unmapnotify(XEvent *e)
2088{
2089 Client *c;
2090 XUnmapEvent *ev = &e->xunmap;
2091
2092 if ((c = wintoclient(ev->window))) {
2093 if (ev->send_event)
2094 setclientstate(c, WithdrawnState);
2095 else
2096 unmanage(c, 0);
2097 }
2098 else if ((c = wintosystrayicon(ev->window))) {
2099 /* KLUDGE! sometimes icons occasionally unmap their windows, but do
2100 * _not_ destroy them. We map those windows back */
2101 XMapRaised(dpy, c->win);
2102 updatesystray();
2103 }
2104}
2105
2106void
2107updatebars(void)
2108{
2109 unsigned int w;
2110 Monitor *m;
2111 XSetWindowAttributes wa = {
2112 .override_redirect = True,
2113 .background_pixmap = ParentRelative,
2114 .event_mask = ButtonPressMask|ExposureMask
2115 };
2116 XClassHint ch = {"dwm", "dwm"};
2117 for (m = mons; m; m = m->next) {
2118 if (m->barwin)
2119 continue;
2120 w = m->ww;
2121 if (showsystray && m == systraytomon(m))
2122 w -= getsystraywidth();
2123 m->barwin = XCreateWindow(dpy, root, m->wx, m->by, w, bh, 0, DefaultDepth(dpy, screen),
2124 CopyFromParent, DefaultVisual(dpy, screen),
2125 CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
2126 XDefineCursor(dpy, m->barwin, cursor[CurNormal]->cursor);
2127 if (showsystray && m == systraytomon(m))
2128 XMapRaised(dpy, systray->win);
2129 XMapRaised(dpy, m->barwin);
2130 XSetClassHint(dpy, m->barwin, &ch);
2131 }
2132}
2133
2134void
2135updatebarpos(Monitor *m)
2136{
2137 m->wy = m->my;
2138 m->wh = m->mh;
2139 if (m->showbar) {
2140 m->wh -= bh;
2141 m->by = m->topbar ? m->wy : m->wy + m->wh;
2142 m->wy = m->topbar ? m->wy + bh : m->wy;
2143 } else
2144 m->by = -bh;
2145}
2146
2147void
2148updateclientlist(void)
2149{
2150 Client *c;
2151 Monitor *m;
2152
2153 XDeleteProperty(dpy, root, netatom[NetClientList]);
2154 for (m = mons; m; m = m->next)
2155 for (c = m->clients; c; c = c->next)
2156 XChangeProperty(dpy, root, netatom[NetClientList],
2157 XA_WINDOW, 32, PropModeAppend,
2158 (unsigned char *) &(c->win), 1);
2159}
2160
2161int
2162updategeom(void)
2163{
2164 int dirty = 0;
2165
2166#ifdef XINERAMA
2167 if (XineramaIsActive(dpy)) {
2168 int i, j, n, nn;
2169 Client *c;
2170 Monitor *m;
2171 XineramaScreenInfo *info = XineramaQueryScreens(dpy, &nn);
2172 XineramaScreenInfo *unique = NULL;
2173
2174 for (n = 0, m = mons; m; m = m->next, n++);
2175 /* only consider unique geometries as separate screens */
2176 unique = ecalloc(nn, sizeof(XineramaScreenInfo));
2177 for (i = 0, j = 0; i < nn; i++)
2178 if (isuniquegeom(unique, j, &info[i]))
2179 memcpy(&unique[j++], &info[i], sizeof(XineramaScreenInfo));
2180 XFree(info);
2181 nn = j;
2182
2183 /* new monitors if nn > n */
2184 for (i = n; i < nn; i++) {
2185 for (m = mons; m && m->next; m = m->next);
2186 if (m)
2187 m->next = createmon();
2188 else
2189 mons = createmon();
2190 }
2191 for (i = 0, m = mons; i < nn && m; m = m->next, i++)
2192 if (i >= n
2193 || unique[i].x_org != m->mx || unique[i].y_org != m->my
2194 || unique[i].width != m->mw || unique[i].height != m->mh)
2195 {
2196 dirty = 1;
2197 m->num = i;
2198 m->mx = m->wx = unique[i].x_org;
2199 m->my = m->wy = unique[i].y_org;
2200 m->mw = m->ww = unique[i].width;
2201 m->mh = m->wh = unique[i].height;
2202 updatebarpos(m);
2203 }
2204 /* removed monitors if n > nn */
2205 for (i = nn; i < n; i++) {
2206 for (m = mons; m && m->next; m = m->next);
2207 while ((c = m->clients)) {
2208 dirty = 1;
2209 m->clients = c->next;
2210 detachstack(c);
2211 c->mon = mons;
2212 attach(c);
2213 attachstack(c);
2214 }
2215 if (m == selmon)
2216 selmon = mons;
2217 cleanupmon(m);
2218 }
2219 free(unique);
2220 } else
2221#endif /* XINERAMA */
2222 { /* default monitor setup */
2223 if (!mons)
2224 mons = createmon();
2225 if (mons->mw != sw || mons->mh != sh) {
2226 dirty = 1;
2227 mons->mw = mons->ww = sw;
2228 mons->mh = mons->wh = sh;
2229 updatebarpos(mons);
2230 }
2231 }
2232 if (dirty) {
2233 selmon = mons;
2234 selmon = wintomon(root);
2235 }
2236 return dirty;
2237}
2238
2239void
2240updatenumlockmask(void)
2241{
2242 unsigned int i, j;
2243 XModifierKeymap *modmap;
2244
2245 numlockmask = 0;
2246 modmap = XGetModifierMapping(dpy);
2247 for (i = 0; i < 8; i++)
2248 for (j = 0; j < modmap->max_keypermod; j++)
2249 if (modmap->modifiermap[i * modmap->max_keypermod + j]
2250 == XKeysymToKeycode(dpy, XK_Num_Lock))
2251 numlockmask = (1 << i);
2252 XFreeModifiermap(modmap);
2253}
2254
2255void
2256updatesizehints(Client *c)
2257{
2258 long msize;
2259 XSizeHints size;
2260
2261 if (!XGetWMNormalHints(dpy, c->win, &size, &msize))
2262 /* size is uninitialized, ensure that size.flags aren't used */
2263 size.flags = PSize;
2264 if (size.flags & PBaseSize) {
2265 c->basew = size.base_width;
2266 c->baseh = size.base_height;
2267 } else if (size.flags & PMinSize) {
2268 c->basew = size.min_width;
2269 c->baseh = size.min_height;
2270 } else
2271 c->basew = c->baseh = 0;
2272 if (size.flags & PResizeInc) {
2273 c->incw = size.width_inc;
2274 c->inch = size.height_inc;
2275 } else
2276 c->incw = c->inch = 0;
2277 if (size.flags & PMaxSize) {
2278 c->maxw = size.max_width;
2279 c->maxh = size.max_height;
2280 } else
2281 c->maxw = c->maxh = 0;
2282 if (size.flags & PMinSize) {
2283 c->minw = size.min_width;
2284 c->minh = size.min_height;
2285 } else if (size.flags & PBaseSize) {
2286 c->minw = size.base_width;
2287 c->minh = size.base_height;
2288 } else
2289 c->minw = c->minh = 0;
2290 if (size.flags & PAspect) {
2291 c->mina = (float)size.min_aspect.y / size.min_aspect.x;
2292 c->maxa = (float)size.max_aspect.x / size.max_aspect.y;
2293 } else
2294 c->maxa = c->mina = 0.0;
2295 c->isfixed = (c->maxw && c->maxh && c->maxw == c->minw && c->maxh == c->minh);
2296 c->hintsvalid = 1;
2297}
2298
2299void
2300updatestatus(void)
2301{
2302 if (!gettextprop(root, XA_WM_NAME, stext, sizeof(stext)))
2303 strcpy(stext, "dwm-"VERSION);
2304 drawbar(selmon);
2305 updatesystray();
2306}
2307
2308
2309void
2310updatesystrayicongeom(Client *i, int w, int h)
2311{
2312 if (i) {
2313 i->h = bh;
2314 if (w == h)
2315 i->w = bh;
2316 else if (h == bh)
2317 i->w = w;
2318 else
2319 i->w = (int) ((float)bh * ((float)w / (float)h));
2320 applysizehints(i, &(i->x), &(i->y), &(i->w), &(i->h), False);
2321 /* force icons into the systray dimensions if they don't want to */
2322 if (i->h > bh) {
2323 if (i->w == i->h)
2324 i->w = bh;
2325 else
2326 i->w = (int) ((float)bh * ((float)i->w / (float)i->h));
2327 i->h = bh;
2328 }
2329 }
2330}
2331
2332void
2333updatesystrayiconstate(Client *i, XPropertyEvent *ev)
2334{
2335 long flags;
2336 int code = 0;
2337
2338 if (!showsystray || !i || ev->atom != xatom[XembedInfo] ||
2339 !(flags = getatomprop(i, xatom[XembedInfo])))
2340 return;
2341
2342 if (flags & XEMBED_MAPPED && !i->tags) {
2343 i->tags = 1;
2344 code = XEMBED_WINDOW_ACTIVATE;
2345 XMapRaised(dpy, i->win);
2346 setclientstate(i, NormalState);
2347 }
2348 else if (!(flags & XEMBED_MAPPED) && i->tags) {
2349 i->tags = 0;
2350 code = XEMBED_WINDOW_DEACTIVATE;
2351 XUnmapWindow(dpy, i->win);
2352 setclientstate(i, WithdrawnState);
2353 }
2354 else
2355 return;
2356 sendevent(i->win, xatom[Xembed], StructureNotifyMask, CurrentTime, code, 0,
2357 systray->win, XEMBED_EMBEDDED_VERSION);
2358}
2359
2360void
2361updatesystray(void)
2362{
2363 XSetWindowAttributes wa;
2364 XWindowChanges wc;
2365 Client *i;
2366 Monitor *m = systraytomon(NULL);
2367 unsigned int x = m->mx + m->mw;
2368 unsigned int sw = TEXTW(stext) - lrpad + systrayspacing;
2369 unsigned int w = 1;
2370
2371 if (!showsystray)
2372 return;
2373 if (systrayonleft)
2374 x -= sw + lrpad / 2;
2375 if (!systray) {
2376 /* init systray */
2377 if (!(systray = (Systray *)calloc(1, sizeof(Systray))))
2378 die("fatal: could not malloc() %u bytes\n", sizeof(Systray));
2379 systray->win = XCreateSimpleWindow(dpy, root, x, m->by, w, bh, 0, 0, scheme[SchemeSel][ColBg].pixel);
2380 wa.event_mask = ButtonPressMask | ExposureMask;
2381 wa.override_redirect = True;
2382 wa.background_pixel = scheme[SchemeNorm][ColBg].pixel;
2383 XSelectInput(dpy, systray->win, SubstructureNotifyMask);
2384 XChangeProperty(dpy, systray->win, netatom[NetSystemTrayOrientation], XA_CARDINAL, 32,
2385 PropModeReplace, (unsigned char *)&netatom[NetSystemTrayOrientationHorz], 1);
2386 XChangeWindowAttributes(dpy, systray->win, CWEventMask|CWOverrideRedirect|CWBackPixel, &wa);
2387 XMapRaised(dpy, systray->win);
2388 XSetSelectionOwner(dpy, netatom[NetSystemTray], systray->win, CurrentTime);
2389 if (XGetSelectionOwner(dpy, netatom[NetSystemTray]) == systray->win) {
2390 sendevent(root, xatom[Manager], StructureNotifyMask, CurrentTime, netatom[NetSystemTray], systray->win, 0, 0);
2391 XSync(dpy, False);
2392 }
2393 else {
2394 fprintf(stderr, "dwm: unable to obtain system tray.\n");
2395 free(systray);
2396 systray = NULL;
2397 return;
2398 }
2399 }
2400 for (w = 0, i = systray->icons; i; i = i->next) {
2401 /* make sure the background color stays the same */
2402 wa.background_pixel = scheme[SchemeNorm][ColBg].pixel;
2403 XChangeWindowAttributes(dpy, i->win, CWBackPixel, &wa);
2404 XMapRaised(dpy, i->win);
2405 w += systrayspacing;
2406 i->x = w;
2407 XMoveResizeWindow(dpy, i->win, i->x, 0, i->w, i->h);
2408 w += i->w;
2409 if (i->mon != m)
2410 i->mon = m;
2411 }
2412 w = w ? w + systrayspacing : 1;
2413 x -= w;
2414 XMoveResizeWindow(dpy, systray->win, x, m->by, w, bh);
2415 wc.x = x; wc.y = m->by; wc.width = w; wc.height = bh;
2416 wc.stack_mode = Above; wc.sibling = m->barwin;
2417 XConfigureWindow(dpy, systray->win, CWX|CWY|CWWidth|CWHeight|CWSibling|CWStackMode, &wc);
2418 XMapWindow(dpy, systray->win);
2419 XMapSubwindows(dpy, systray->win);
2420 /* redraw background */
2421 XSetForeground(dpy, drw->gc, scheme[SchemeNorm][ColBg].pixel);
2422 XFillRectangle(dpy, systray->win, drw->gc, 0, 0, w, bh);
2423 XSync(dpy, False);
2424}
2425
2426void
2427updatetitle(Client *c)
2428{
2429 if (!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
2430 gettextprop(c->win, XA_WM_NAME, c->name, sizeof c->name);
2431 if (c->name[0] == '\0') /* hack to mark broken clients */
2432 strcpy(c->name, broken);
2433}
2434
2435void
2436updatewindowtype(Client *c)
2437{
2438 Atom state = getatomprop(c, netatom[NetWMState]);
2439 Atom wtype = getatomprop(c, netatom[NetWMWindowType]);
2440
2441 if (state == netatom[NetWMFullscreen])
2442 setfullscreen(c, 1);
2443 if (wtype == netatom[NetWMWindowTypeDialog])
2444 c->isfloating = 1;
2445}
2446
2447void
2448updatewmhints(Client *c)
2449{
2450 XWMHints *wmh;
2451
2452 if ((wmh = XGetWMHints(dpy, c->win))) {
2453 if (c == selmon->sel && wmh->flags & XUrgencyHint) {
2454 wmh->flags &= ~XUrgencyHint;
2455 XSetWMHints(dpy, c->win, wmh);
2456 } else {
2457 c->isurgent = (wmh->flags & XUrgencyHint) ? 1 : 0;
2458 if (c->isurgent)
2459 XSetWindowBorder(dpy, c->win, scheme[SchemeUrg][ColBorder].pixel);
2460 }
2461 if (wmh->flags & InputHint)
2462 c->neverfocus = !wmh->input;
2463 else
2464 c->neverfocus = 0;
2465 XFree(wmh);
2466 }
2467}
2468
2469void
2470view(const Arg *arg)
2471{
2472 if ((arg->ui & TAGMASK) == selmon->tagset[selmon->seltags])
2473 return;
2474 selmon->seltags ^= 1; /* toggle sel tagset */
2475 if (arg->ui & TAGMASK)
2476 selmon->tagset[selmon->seltags] = arg->ui & TAGMASK;
2477 focus(NULL);
2478 arrange(selmon);
2479}
2480
2481Client *
2482wintoclient(Window w)
2483{
2484 Client *c;
2485 Monitor *m;
2486
2487 for (m = mons; m; m = m->next)
2488 for (c = m->clients; c; c = c->next)
2489 if (c->win == w)
2490 return c;
2491 return NULL;
2492}
2493
2494Client *
2495wintosystrayicon(Window w) {
2496 Client *i = NULL;
2497
2498 if (!showsystray || !w)
2499 return i;
2500 for (i = systray->icons; i && i->win != w; i = i->next) ;
2501 return i;
2502}
2503
2504Monitor *
2505wintomon(Window w)
2506{
2507 int x, y;
2508 Client *c;
2509 Monitor *m;
2510
2511 if (w == root && getrootptr(&x, &y))
2512 return recttomon(x, y, 1, 1);
2513 for (m = mons; m; m = m->next)
2514 if (w == m->barwin)
2515 return m;
2516 if ((c = wintoclient(w)))
2517 return c->mon;
2518 return selmon;
2519}
2520
2521/* There's no way to check accesses to destroyed windows, thus those cases are
2522 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
2523 * default error handler, which may call exit. */
2524int
2525xerror(Display *dpy, XErrorEvent *ee)
2526{
2527 if (ee->error_code == BadWindow
2528 || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
2529 || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
2530 || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
2531 || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
2532 || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
2533 || (ee->request_code == X_GrabButton && ee->error_code == BadAccess)
2534 || (ee->request_code == X_GrabKey && ee->error_code == BadAccess)
2535 || (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
2536 return 0;
2537 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
2538 ee->request_code, ee->error_code);
2539 return xerrorxlib(dpy, ee); /* may call exit */
2540}
2541
2542int
2543xerrordummy(Display *dpy, XErrorEvent *ee)
2544{
2545 return 0;
2546}
2547
2548/* Startup Error handler to check if another window manager
2549 * is already running. */
2550int
2551xerrorstart(Display *dpy, XErrorEvent *ee)
2552{
2553 die("dwm: another window manager is already running");
2554 return -1;
2555}
2556
2557Monitor *
2558systraytomon(Monitor *m) {
2559 Monitor *t;
2560 int i, n;
2561 if(!systraypinning) {
2562 if(!m)
2563 return selmon;
2564 return m == selmon ? m : NULL;
2565 }
2566 for(n = 1, t = mons; t && t->next; n++, t = t->next) ;
2567 for(i = 1, t = mons; t && t->next && i < systraypinning; i++, t = t->next) ;
2568 if(systraypinningfailfirst && n < systraypinning)
2569 return mons;
2570 return t;
2571}
2572
2573void
2574zoom(const Arg *arg)
2575{
2576 Client *c = selmon->sel;
2577
2578 if (!selmon->lt[selmon->sellt]->arrange || !c || c->isfloating)
2579 return;
2580 if (c == nexttiled(selmon->clients) && !(c = nexttiled(c->next)))
2581 return;
2582 pop(c);
2583}
2584
2585int
2586main(int argc, char *argv[])
2587{
2588 if (argc == 2 && !strcmp("-v", argv[1]))
2589 die("dwm-"VERSION);
2590 else if (argc != 1)
2591 die("usage: dwm [-v]");
2592 if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
2593 fputs("warning: no locale support\n", stderr);
2594 if (!(dpy = XOpenDisplay(NULL)))
2595 die("dwm: cannot open display");
2596 checkotherwm();
2597 setup();
2598#ifdef __OpenBSD__
2599 if (pledge("stdio rpath proc exec", NULL) == -1)
2600 die("pledge");
2601#endif /* __OpenBSD__ */
2602 scan();
2603 runautostart();
2604 run();
2605 cleanup();
2606 XCloseDisplay(dpy);
2607 return EXIT_SUCCESS;
2608}