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Reversed direction of keys for switch between monitors to match the physical arrangem...
[dwm] / dwm.c
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5715edf5
AT		 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
44#include "drw.h"
45#include "util.h"
46
47/* macros */
48#define BUTTONMASK (ButtonPressMask|ButtonReleaseMask)
49#define CLEANMASK(mask) (mask & ~(numlockmask|LockMask) & (ShiftMask|ControlMask|Mod1Mask|Mod2Mask|Mod3Mask|Mod4Mask|Mod5Mask))
50#define INTERSECT(x,y,w,h,m) (MAX(0, MIN((x)+(w),(m)->wx+(m)->ww) - MAX((x),(m)->wx)) \
51 * MAX(0, MIN((y)+(h),(m)->wy+(m)->wh) - MAX((y),(m)->wy)))
52#define ISVISIBLE(C) ((C->tags & C->mon->tagset[C->mon->seltags]))
53#define LENGTH(X) (sizeof X / sizeof X[0])
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/* enums */
61enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
62enum { SchemeNorm, SchemeSel }; /* color schemes */
63enum { NetSupported, NetWMName, NetWMState, NetWMCheck,
64 NetWMFullscreen, NetActiveWindow, NetWMWindowType,
65 NetWMWindowTypeDialog, NetClientList, NetLast }; /* EWMH atoms */
66enum { WMProtocols, WMDelete, WMState, WMTakeFocus, WMLast }; /* default atoms */
67enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle,
68 ClkClientWin, ClkRootWin, ClkLast }; /* clicks */
69
70typedef union {
71 int i;
72 unsigned int ui;
73 float f;
74 const void *v;
75} Arg;
76
77typedef struct {
78 unsigned int click;
79 unsigned int mask;
80 unsigned int button;
81 void (*func)(const Arg *arg);
82 const Arg arg;
83} Button;
84
85typedef struct Monitor Monitor;
86typedef struct Client Client;
87struct Client {
88 char name[256];
89 float mina, maxa;
90 int x, y, w, h;
91 int oldx, oldy, oldw, oldh;
92 int basew, baseh, incw, inch, maxw, maxh, minw, minh, hintsvalid;
93 int bw, oldbw;
94 unsigned int tags;
95 int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen;
96 Client *next;
97 Client *snext;
98 Monitor *mon;
99 Window win;
100};
101
102typedef struct {
103 unsigned int mod;
104 KeySym keysym;
105 void (*func)(const Arg *);
106 const Arg arg;
107} Key;
108
109typedef struct {
110 const char *symbol;
111 void (*arrange)(Monitor *);
112} Layout;
113
5715edf5
AT		 114typedef struct {
115 const char *class;
116 const char *instance;
117 const char *title;
118 unsigned int tags;
119 int isfloating;
120 int monitor;
121} Rule;
122
123/* function declarations */
124static void applyrules(Client *c);
125static int applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact);
126static void arrange(Monitor *m);
127static void arrangemon(Monitor *m);
128static void attach(Client *c);
129static void attachstack(Client *c);
130static void buttonpress(XEvent *e);
131static void checkotherwm(void);
132static void cleanup(void);
133static void cleanupmon(Monitor *mon);
134static void clientmessage(XEvent *e);
135static void configure(Client *c);
136static void configurenotify(XEvent *e);
137static void configurerequest(XEvent *e);
138static Monitor *createmon(void);
139static void destroynotify(XEvent *e);
140static void detach(Client *c);
141static void detachstack(Client *c);
142static Monitor *dirtomon(int dir);
143static void drawbar(Monitor *m);
144static void drawbars(void);
145static void enternotify(XEvent *e);
146static void expose(XEvent *e);
147static void focus(Client *c);
148static void focusin(XEvent *e);
149static void focusmon(const Arg *arg);
150static void focusstack(const Arg *arg);
151static Atom getatomprop(Client *c, Atom prop);
152static int getrootptr(int *x, int *y);
153static long getstate(Window w);
154static int gettextprop(Window w, Atom atom, char *text, unsigned int size);
155static void grabbuttons(Client *c, int focused);
156static void grabkeys(void);
5715edf5
AT		 157static void keypress(XEvent *e);
158static void killclient(const Arg *arg);
9813966c 159static void layoutmenu(const Arg *arg);
5715edf5
AT		 160static void manage(Window w, XWindowAttributes *wa);
161static void mappingnotify(XEvent *e);
162static void maprequest(XEvent *e);
163static void monocle(Monitor *m);
164static void motionnotify(XEvent *e);
165static void movemouse(const Arg *arg);
c56e7560 166static void nametag(const Arg *arg);
5715edf5
AT		 167static Client *nexttiled(Client *c);
168static void pop(Client *c);
169static void propertynotify(XEvent *e);
170static void quit(const Arg *arg);
1da78b82 171static void quitprompt(const Arg *arg);
5715edf5
AT		 172static Monitor *recttomon(int x, int y, int w, int h);
173static void resize(Client *c, int x, int y, int w, int h, int interact);
174static void resizeclient(Client *c, int x, int y, int w, int h);
175static void resizemouse(const Arg *arg);
176static void restack(Monitor *m);
177static void run(void);
178static void scan(void);
179static int sendevent(Client *c, Atom proto);
180static void sendmon(Client *c, Monitor *m);
181static void setclientstate(Client *c, long state);
182static void setfocus(Client *c);
183static void setfullscreen(Client *c, int fullscreen);
184static void setlayout(const Arg *arg);
185static void setmfact(const Arg *arg);
186static void setup(void);
187static void seturgent(Client *c, int urg);
188static void showhide(Client *c);
189static void sigchld(int unused);
190static void spawn(const Arg *arg);
191static void tag(const Arg *arg);
192static void tagmon(const Arg *arg);
193static void tile(Monitor *m);
194static void togglebar(const Arg *arg);
195static void togglefloating(const Arg *arg);
196static void toggletag(const Arg *arg);
197static void toggleview(const Arg *arg);
198static void unfocus(Client *c, int setfocus);
199static void unmanage(Client *c, int destroyed);
200static void unmapnotify(XEvent *e);
201static void updatebarpos(Monitor *m);
202static void updatebars(void);
203static void updateclientlist(void);
204static int updategeom(void);
205static void updatenumlockmask(void);
206static void updatesizehints(Client *c);
207static void updatestatus(void);
208static void updatetitle(Client *c);
209static void updatewindowtype(Client *c);
210static void updatewmhints(Client *c);
211static void view(const Arg *arg);
212static Client *wintoclient(Window w);
213static Monitor *wintomon(Window w);
214static int xerror(Display *dpy, XErrorEvent *ee);
215static int xerrordummy(Display *dpy, XErrorEvent *ee);
216static int xerrorstart(Display *dpy, XErrorEvent *ee);
217static void zoom(const Arg *arg);
218
a9768a23
AT		 219static void keyrelease(XEvent *e);
220static void combotag(const Arg *arg);
221static void comboview(const Arg *arg);
222
223
5715edf5
AT		 224/* variables */
225static const char broken[] = "broken";
226static char stext[256];
227static int screen;
228static int sw, sh; /* X display screen geometry width, height */
229static int bh; /* bar height */
230static int lrpad; /* sum of left and right padding for text */
231static int (*xerrorxlib)(Display *, XErrorEvent *);
232static unsigned int numlockmask = 0;
233static void (*handler[LASTEvent]) (XEvent *) = {
234 [ButtonPress] = buttonpress,
a9768a23 235 [ButtonRelease] = keyrelease,
5715edf5
AT		 236 [ClientMessage] = clientmessage,
237 [ConfigureRequest] = configurerequest,
238 [ConfigureNotify] = configurenotify,
239 [DestroyNotify] = destroynotify,
240 [EnterNotify] = enternotify,
241 [Expose] = expose,
242 [FocusIn] = focusin,
a9768a23 243 [KeyRelease] = keyrelease,
5715edf5
AT		 244 [KeyPress] = keypress,
245 [MappingNotify] = mappingnotify,
246 [MapRequest] = maprequest,
247 [MotionNotify] = motionnotify,
248 [PropertyNotify] = propertynotify,
249 [UnmapNotify] = unmapnotify
250};
251static Atom wmatom[WMLast], netatom[NetLast];
252static int running = 1;
1da78b82 253static int restart = 1;
5715edf5
AT		 254static Cur *cursor[CurLast];
255static Clr **scheme;
256static Display *dpy;
257static Drw *drw;
258static Monitor *mons, *selmon;
259static Window root, wmcheckwin;
260
261/* configuration, allows nested code to access above variables */
262#include "config.h"
263
264/* compile-time check if all tags fit into an unsigned int bit array. */
265struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; };
266
267/* function implementations */
a9768a23
AT		 268static int combo = 0;
269
270void
271keyrelease(XEvent *e) {
272 combo = 0;
273}
274
275void
276combotag(const Arg *arg) {
277 if(selmon->sel && arg->ui & TAGMASK) {
278 if (combo) {
279 selmon->sel->tags |= arg->ui & TAGMASK;
280 } else {
281 combo = 1;
282 selmon->sel->tags = arg->ui & TAGMASK;
283 }
284 focus(NULL);
285 arrange(selmon);
286 }
287}
288
289void
290comboview(const Arg *arg) {
291 unsigned newtags = arg->ui & TAGMASK;
292 if (combo) {
293 selmon->tagset[selmon->seltags] |= newtags;
294 } else {
295 selmon->seltags ^= 1; /*toggle tagset*/
296 combo = 1;
297 if (newtags)
298 selmon->tagset[selmon->seltags] = newtags;
299 }
300 focus(NULL);
301 arrange(selmon);
302}
303
5715edf5
AT		 304void
305applyrules(Client *c)
306{
307 const char *class, *instance;
308 unsigned int i;
309 const Rule *r;
310 Monitor *m;
311 XClassHint ch = { NULL, NULL };
312
313 /* rule matching */
314 c->isfloating = 0;
315 c->tags = 0;
316 XGetClassHint(dpy, c->win, &ch);
317 class = ch.res_class ? ch.res_class : broken;
318 instance = ch.res_name ? ch.res_name : broken;
319
320 for (i = 0; i < LENGTH(rules); i++) {
321 r = &rules[i];
322 if ((!r->title || strstr(c->name, r->title))
323 && (!r->class || strstr(class, r->class))
324 && (!r->instance || strstr(instance, r->instance)))
325 {
326 c->isfloating = r->isfloating;
327 c->tags |= r->tags;
328 for (m = mons; m && m->num != r->monitor; m = m->next);
329 if (m)
330 c->mon = m;
331 }
332 }
333 if (ch.res_class)
334 XFree(ch.res_class);
335 if (ch.res_name)
336 XFree(ch.res_name);
ba835934
AT		 337 if(c->tags & TAGMASK) c->tags = c->tags & TAGMASK;
338 else if(c->mon->tagset[c->mon->seltags]) c->tags = c->mon->tagset[c->mon->seltags];
339 else c->tags = 1;
5715edf5
AT		 340}
341
342int
343applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact)
344{
345 int baseismin;
346 Monitor *m = c->mon;
347
348 /* set minimum possible */
349 *w = MAX(1, *w);
350 *h = MAX(1, *h);
351 if (interact) {
352 if (*x > sw)
353 *x = sw - WIDTH(c);
354 if (*y > sh)
355 *y = sh - HEIGHT(c);
356 if (*x + *w + 2 * c->bw < 0)
357 *x = 0;
358 if (*y + *h + 2 * c->bw < 0)
359 *y = 0;
360 } else {
361 if (*x >= m->wx + m->ww)
362 *x = m->wx + m->ww - WIDTH(c);
363 if (*y >= m->wy + m->wh)
364 *y = m->wy + m->wh - HEIGHT(c);
365 if (*x + *w + 2 * c->bw <= m->wx)
366 *x = m->wx;
367 if (*y + *h + 2 * c->bw <= m->wy)
368 *y = m->wy;
369 }
370 if (*h < bh)
371 *h = bh;
372 if (*w < bh)
373 *w = bh;
374 if (resizehints || c->isfloating || !c->mon->lt[c->mon->sellt]->arrange) {
375 if (!c->hintsvalid)
376 updatesizehints(c);
377 /* see last two sentences in ICCCM 4.1.2.3 */
378 baseismin = c->basew == c->minw && c->baseh == c->minh;
379 if (!baseismin) { /* temporarily remove base dimensions */
380 *w -= c->basew;
381 *h -= c->baseh;
382 }
383 /* adjust for aspect limits */
384 if (c->mina > 0 && c->maxa > 0) {
385 if (c->maxa < (float)*w / *h)
386 *w = *h * c->maxa + 0.5;
387 else if (c->mina < (float)*h / *w)
388 *h = *w * c->mina + 0.5;
389 }
390 if (baseismin) { /* increment calculation requires this */
391 *w -= c->basew;
392 *h -= c->baseh;
393 }
394 /* adjust for increment value */
395 if (c->incw)
396 *w -= *w % c->incw;
397 if (c->inch)
398 *h -= *h % c->inch;
399 /* restore base dimensions */
400 *w = MAX(*w + c->basew, c->minw);
401 *h = MAX(*h + c->baseh, c->minh);
402 if (c->maxw)
403 *w = MIN(*w, c->maxw);
404 if (c->maxh)
405 *h = MIN(*h, c->maxh);
406 }
407 return *x != c->x || *y != c->y || *w != c->w || *h != c->h;
408}
409
410void
411arrange(Monitor *m)
412{
413 if (m)
414 showhide(m->stack);
415 else for (m = mons; m; m = m->next)
416 showhide(m->stack);
417 if (m) {
418 arrangemon(m);
419 restack(m);
420 } else for (m = mons; m; m = m->next)
421 arrangemon(m);
422}
423
424void
425arrangemon(Monitor *m)
426{
427 strncpy(m->ltsymbol, m->lt[m->sellt]->symbol, sizeof m->ltsymbol);
428 if (m->lt[m->sellt]->arrange)
429 m->lt[m->sellt]->arrange(m);
430}
431
432void
433attach(Client *c)
434{
435 c->next = c->mon->clients;
436 c->mon->clients = c;
437}
438
439void
440attachstack(Client *c)
441{
442 c->snext = c->mon->stack;
443 c->mon->stack = c;
444}
445
446void
447buttonpress(XEvent *e)
448{
449 unsigned int i, x, click;
450 Arg arg = {0};
451 Client *c;
452 Monitor *m;
453 XButtonPressedEvent *ev = &e->xbutton;
454
455 click = ClkRootWin;
456 /* focus monitor if necessary */
457 if ((m = wintomon(ev->window)) && m != selmon) {
458 unfocus(selmon->sel, 1);
459 selmon = m;
460 focus(NULL);
461 }
462 if (ev->window == selmon->barwin) {
463 i = x = 0;
464 do
465 x += TEXTW(tags[i]);
466 while (ev->x >= x && ++i < LENGTH(tags));
467 if (i < LENGTH(tags)) {
468 click = ClkTagBar;
469 arg.ui = 1 << i;
470 } else if (ev->x < x + TEXTW(selmon->ltsymbol))
471 click = ClkLtSymbol;
472 else if (ev->x > selmon->ww - (int)TEXTW(stext))
473 click = ClkStatusText;
474 else
475 click = ClkWinTitle;
476 } else if ((c = wintoclient(ev->window))) {
477 focus(c);
478 restack(selmon);
479 XAllowEvents(dpy, ReplayPointer, CurrentTime);
480 click = ClkClientWin;
481 }
482 for (i = 0; i < LENGTH(buttons); i++)
483 if (click == buttons[i].click && buttons[i].func && buttons[i].button == ev->button
484 && CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
485 buttons[i].func(click == ClkTagBar && buttons[i].arg.i == 0 ? &arg : &buttons[i].arg);
486}
487
488void
489checkotherwm(void)
490{
491 xerrorxlib = XSetErrorHandler(xerrorstart);
492 /* this causes an error if some other window manager is running */
493 XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask);
494 XSync(dpy, False);
495 XSetErrorHandler(xerror);
496 XSync(dpy, False);
497}
498
499void
500cleanup(void)
501{
502 Arg a = {.ui = ~0};
503 Layout foo = { "", NULL };
504 Monitor *m;
505 size_t i;
506
507 view(&a);
508 selmon->lt[selmon->sellt] = &foo;
509 for (m = mons; m; m = m->next)
510 while (m->stack)
511 unmanage(m->stack, 0);
512 XUngrabKey(dpy, AnyKey, AnyModifier, root);
513 while (mons)
514 cleanupmon(mons);
515 for (i = 0; i < CurLast; i++)
516 drw_cur_free(drw, cursor[i]);
517 for (i = 0; i < LENGTH(colors); i++)
518 free(scheme[i]);
519 free(scheme);
520 XDestroyWindow(dpy, wmcheckwin);
521 drw_free(drw);
522 XSync(dpy, False);
523 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
524 XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
525}
526
527void
528cleanupmon(Monitor *mon)
529{
530 Monitor *m;
531
532 if (mon == mons)
533 mons = mons->next;
534 else {
535 for (m = mons; m && m->next != mon; m = m->next);
536 m->next = mon->next;
537 }
538 XUnmapWindow(dpy, mon->barwin);
539 XDestroyWindow(dpy, mon->barwin);
540 free(mon);
541}
542
543void
544clientmessage(XEvent *e)
545{
546 XClientMessageEvent *cme = &e->xclient;
547 Client *c = wintoclient(cme->window);
548
549 if (!c)
550 return;
551 if (cme->message_type == netatom[NetWMState]) {
552 if (cme->data.l[1] == netatom[NetWMFullscreen]
553 || cme->data.l[2] == netatom[NetWMFullscreen])
554 setfullscreen(c, (cme->data.l[0] == 1 /* _NET_WM_STATE_ADD */
555 || (cme->data.l[0] == 2 /* _NET_WM_STATE_TOGGLE */ && !c->isfullscreen)));
556 } else if (cme->message_type == netatom[NetActiveWindow]) {
557 if (c != selmon->sel && !c->isurgent)
558 seturgent(c, 1);
559 }
560}
561
562void
563configure(Client *c)
564{
565 XConfigureEvent ce;
566
567 ce.type = ConfigureNotify;
568 ce.display = dpy;
569 ce.event = c->win;
570 ce.window = c->win;
571 ce.x = c->x;
572 ce.y = c->y;
573 ce.width = c->w;
574 ce.height = c->h;
575 ce.border_width = c->bw;
576 ce.above = None;
577 ce.override_redirect = False;
578 XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce);
579}
580
581void
582configurenotify(XEvent *e)
583{
584 Monitor *m;
585 Client *c;
586 XConfigureEvent *ev = &e->xconfigure;
587 int dirty;
588
589 /* TODO: updategeom handling sucks, needs to be simplified */
590 if (ev->window == root) {
591 dirty = (sw != ev->width || sh != ev->height);
592 sw = ev->width;
593 sh = ev->height;
594 if (updategeom() || dirty) {
595 drw_resize(drw, sw, bh);
596 updatebars();
597 for (m = mons; m; m = m->next) {
598 for (c = m->clients; c; c = c->next)
599 if (c->isfullscreen)
600 resizeclient(c, m->mx, m->my, m->mw, m->mh);
601 XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, m->ww, bh);
602 }
603 focus(NULL);
604 arrange(NULL);
605 }
606 }
607}
608
609void
610configurerequest(XEvent *e)
611{
612 Client *c;
613 Monitor *m;
614 XConfigureRequestEvent *ev = &e->xconfigurerequest;
615 XWindowChanges wc;
616
617 if ((c = wintoclient(ev->window))) {
618 if (ev->value_mask & CWBorderWidth)
619 c->bw = ev->border_width;
620 else if (c->isfloating || !selmon->lt[selmon->sellt]->arrange) {
621 m = c->mon;
622 if (ev->value_mask & CWX) {
623 c->oldx = c->x;
624 c->x = m->mx + ev->x;
625 }
626 if (ev->value_mask & CWY) {
627 c->oldy = c->y;
628 c->y = m->my + ev->y;
629 }
630 if (ev->value_mask & CWWidth) {
631 c->oldw = c->w;
632 c->w = ev->width;
633 }
634 if (ev->value_mask & CWHeight) {
635 c->oldh = c->h;
636 c->h = ev->height;
637 }
638 if ((c->x + c->w) > m->mx + m->mw && c->isfloating)
639 c->x = m->mx + (m->mw / 2 - WIDTH(c) / 2); /* center in x direction */
640 if ((c->y + c->h) > m->my + m->mh && c->isfloating)
641 c->y = m->my + (m->mh / 2 - HEIGHT(c) / 2); /* center in y direction */
642 if ((ev->value_mask & (CWX|CWY)) && !(ev->value_mask & (CWWidth|CWHeight)))
643 configure(c);
644 if (ISVISIBLE(c))
645 XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
646 } else
647 configure(c);
648 } else {
649 wc.x = ev->x;
650 wc.y = ev->y;
651 wc.width = ev->width;
652 wc.height = ev->height;
653 wc.border_width = ev->border_width;
654 wc.sibling = ev->above;
655 wc.stack_mode = ev->detail;
656 XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
657 }
658 XSync(dpy, False);
659}
660
661Monitor *
662createmon(void)
663{
5191f252 664 unsigned int i;
5715edf5
AT		 665 Monitor *m;
666
667 m = ecalloc(1, sizeof(Monitor));
ba835934 668 m->tagset[0] = m->tagset[1] = startontag ? 1 : 0;
5715edf5 669 m->mfact = mfact;
5715edf5
AT		 670 m->showbar = showbar;
671 m->topbar = topbar;
672 m->lt[0] = &layouts[0];
673 m->lt[1] = &layouts[1 % LENGTH(layouts)];
674 strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol);
5191f252
AT		 675 m->ltaxis[0] = layoutaxis[0];
676 m->ltaxis[1] = layoutaxis[1];
677 m->ltaxis[2] = layoutaxis[2];
678 m->msplit = 1;
679 /* init tags, bars, layouts, axes, msplits and mfacts */
680 m->curtag = m->prevtag = 1;
681 for(i = 0; i < LENGTH(tags) + 1; i++){
682 m->showbars[i] = m->showbar;
683 m->lts[i] = &layouts[0];
684 m->mfacts[i] = m->mfact;
685 m->ltaxes[i][0] = m->ltaxis[0];
686 m->ltaxes[i][1] = m->ltaxis[1];
687 m->ltaxes[i][2] = m->ltaxis[2];
688 m->msplits[i] = m->msplit;
689 }
5715edf5
AT		 690 return m;
691}
692
693void
694destroynotify(XEvent *e)
695{
696 Client *c;
697 XDestroyWindowEvent *ev = &e->xdestroywindow;
698
699 if ((c = wintoclient(ev->window)))
700 unmanage(c, 1);
701}
702
703void
704detach(Client *c)
705{
706 Client **tc;
707
708 for (tc = &c->mon->clients; *tc && *tc != c; tc = &(*tc)->next);
709 *tc = c->next;
710}
711
712void
713detachstack(Client *c)
714{
715 Client **tc, *t;
716
717 for (tc = &c->mon->stack; *tc && *tc != c; tc = &(*tc)->snext);
718 *tc = c->snext;
719
720 if (c == c->mon->sel) {
721 for (t = c->mon->stack; t && !ISVISIBLE(t); t = t->snext);
722 c->mon->sel = t;
723 }
724}
725
726Monitor *
727dirtomon(int dir)
728{
729 Monitor *m = NULL;
730
731 if (dir > 0) {
732 if (!(m = selmon->next))
733 m = mons;
734 } else if (selmon == mons)
735 for (m = mons; m->next; m = m->next);
736 else
737 for (m = mons; m->next != selmon; m = m->next);
738 return m;
739}
740
741void
742drawbar(Monitor *m)
743{
8f6a31e7 744 int indn;
5715edf5
AT		 745 int x, w, tw = 0;
746 int boxs = drw->fonts->h / 9;
747 int boxw = drw->fonts->h / 6 + 2;
748 unsigned int i, occ = 0, urg = 0;
749 Client *c;
750
751 if (!m->showbar)
752 return;
753
754 /* draw status first so it can be overdrawn by tags later */
755 if (m == selmon) { /* status is only drawn on selected monitor */
756 drw_setscheme(drw, scheme[SchemeNorm]);
757 tw = TEXTW(stext) - lrpad + 2; /* 2px right padding */
758 drw_text(drw, m->ww - tw, 0, tw, bh, 0, stext, 0);
759 }
760
761 for (c = m->clients; c; c = c->next) {
762 occ |= c->tags;
763 if (c->isurgent)
764 urg |= c->tags;
765 }
766 x = 0;
767 for (i = 0; i < LENGTH(tags); i++) {
8f6a31e7 768 indn = 0;
5715edf5
AT		 769 w = TEXTW(tags[i]);
770 drw_setscheme(drw, scheme[m->tagset[m->seltags] & 1 << i ? SchemeSel : SchemeNorm]);
771 drw_text(drw, x, 0, w, bh, lrpad / 2, tags[i], urg & 1 << i);
8f6a31e7
AT		 772
773 for (c = m->clients; c; c = c->next) {
774 if (c->tags & (1 << i)) {
775 drw_rect(drw, x, 1 + (indn * 2), selmon->sel == c ? 6 : 1, 1, 1, urg & 1 << i);
776 indn++;
777 }
778 }
779
5715edf5
AT		 780 x += w;
781 }
782 w = TEXTW(m->ltsymbol);
783 drw_setscheme(drw, scheme[SchemeNorm]);
784 x = drw_text(drw, x, 0, w, bh, lrpad / 2, m->ltsymbol, 0);
785
786 if ((w = m->ww - tw - x) > bh) {
787 if (m->sel) {
516dd383
AT		 788 /* fix overflow when window name is bigger than window width */
789 int mid = (m->ww - (int)TEXTW(m->sel->name)) / 2 - x;
790 /* make sure name will not overlap on tags even when it is very long */
791 mid = mid >= lrpad / 2 ? mid : lrpad / 2;
5715edf5 792 drw_setscheme(drw, scheme[m == selmon ? SchemeSel : SchemeNorm]);
516dd383 793 drw_text(drw, x, 0, w, bh, mid, m->sel->name, 0);
5715edf5
AT		 794 if (m->sel->isfloating)
795 drw_rect(drw, x + boxs, boxs, boxw, boxw, m->sel->isfixed, 0);
796 } else {
797 drw_setscheme(drw, scheme[SchemeNorm]);
798 drw_rect(drw, x, 0, w, bh, 1, 1);
799 }
800 }
801 drw_map(drw, m->barwin, 0, 0, m->ww, bh);
802}
803
804void
805drawbars(void)
806{
807 Monitor *m;
808
809 for (m = mons; m; m = m->next)
810 drawbar(m);
811}
812
813void
814enternotify(XEvent *e)
815{
816 Client *c;
817 Monitor *m;
818 XCrossingEvent *ev = &e->xcrossing;
819
820 if ((ev->mode != NotifyNormal || ev->detail == NotifyInferior) && ev->window != root)
821 return;
822 c = wintoclient(ev->window);
823 m = c ? c->mon : wintomon(ev->window);
824 if (m != selmon) {
825 unfocus(selmon->sel, 1);
826 selmon = m;
827 } else if (!c || c == selmon->sel)
828 return;
829 focus(c);
830}
831
832void
833expose(XEvent *e)
834{
835 Monitor *m;
836 XExposeEvent *ev = &e->xexpose;
837
838 if (ev->count == 0 && (m = wintomon(ev->window)))
839 drawbar(m);
840}
841
842void
843focus(Client *c)
844{
845 if (!c || !ISVISIBLE(c))
846 for (c = selmon->stack; c && !ISVISIBLE(c); c = c->snext);
847 if (selmon->sel && selmon->sel != c)
848 unfocus(selmon->sel, 0);
849 if (c) {
850 if (c->mon != selmon)
851 selmon = c->mon;
852 if (c->isurgent)
853 seturgent(c, 0);
854 detachstack(c);
855 attachstack(c);
856 grabbuttons(c, 1);
857 XSetWindowBorder(dpy, c->win, scheme[SchemeSel][ColBorder].pixel);
858 setfocus(c);
859 } else {
860 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
861 XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
862 }
863 selmon->sel = c;
864 drawbars();
865}
866
867/* there are some broken focus acquiring clients needing extra handling */
868void
869focusin(XEvent *e)
870{
871 XFocusChangeEvent *ev = &e->xfocus;
872
873 if (selmon->sel && ev->window != selmon->sel->win)
874 setfocus(selmon->sel);
875}
876
877void
878focusmon(const Arg *arg)
879{
880 Monitor *m;
881
882 if (!mons->next)
883 return;
884 if ((m = dirtomon(arg->i)) == selmon)
885 return;
886 unfocus(selmon->sel, 0);
887 selmon = m;
888 focus(NULL);
889}
890
891void
892focusstack(const Arg *arg)
893{
894 Client *c = NULL, *i;
895
896 if (!selmon->sel || (selmon->sel->isfullscreen && lockfullscreen))
897 return;
898 if (arg->i > 0) {
899 for (c = selmon->sel->next; c && !ISVISIBLE(c); c = c->next);
900 if (!c)
901 for (c = selmon->clients; c && !ISVISIBLE(c); c = c->next);
902 } else {
903 for (i = selmon->clients; i != selmon->sel; i = i->next)
904 if (ISVISIBLE(i))
905 c = i;
906 if (!c)
907 for (; i; i = i->next)
908 if (ISVISIBLE(i))
909 c = i;
910 }
911 if (c) {
912 focus(c);
913 restack(selmon);
914 }
915}
916
917Atom
918getatomprop(Client *c, Atom prop)
919{
920 int di;
921 unsigned long dl;
922 unsigned char *p = NULL;
923 Atom da, atom = None;
924
925 if (XGetWindowProperty(dpy, c->win, prop, 0L, sizeof atom, False, XA_ATOM,
926 &da, &di, &dl, &dl, &p) == Success && p) {
927 atom = *(Atom *)p;
928 XFree(p);
929 }
930 return atom;
931}
932
933int
934getrootptr(int *x, int *y)
935{
936 int di;
937 unsigned int dui;
938 Window dummy;
939
940 return XQueryPointer(dpy, root, &dummy, &dummy, x, y, &di, &di, &dui);
941}
942
943long
944getstate(Window w)
945{
946 int format;
947 long result = -1;
948 unsigned char *p = NULL;
949 unsigned long n, extra;
950 Atom real;
951
952 if (XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState],
953 &real, &format, &n, &extra, (unsigned char **)&p) != Success)
954 return -1;
955 if (n != 0)
956 result = *p;
957 XFree(p);
958 return result;
959}
960
961int
962gettextprop(Window w, Atom atom, char *text, unsigned int size)
963{
964 char **list = NULL;
965 int n;
966 XTextProperty name;
967
968 if (!text || size == 0)
969 return 0;
970 text[0] = '\0';
971 if (!XGetTextProperty(dpy, w, &name, atom) || !name.nitems)
972 return 0;
973 if (name.encoding == XA_STRING) {
974 strncpy(text, (char *)name.value, size - 1);
975 } else if (XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success && n > 0 && *list) {
976 strncpy(text, *list, size - 1);
977 XFreeStringList(list);
978 }
979 text[size - 1] = '\0';
980 XFree(name.value);
981 return 1;
982}
983
984void
985grabbuttons(Client *c, int focused)
986{
987 updatenumlockmask();
988 {
989 unsigned int i, j;
990 unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
991 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
992 if (!focused)
993 XGrabButton(dpy, AnyButton, AnyModifier, c->win, False,
994 BUTTONMASK, GrabModeSync, GrabModeSync, None, None);
995 for (i = 0; i < LENGTH(buttons); i++)
996 if (buttons[i].click == ClkClientWin)
997 for (j = 0; j < LENGTH(modifiers); j++)
998 XGrabButton(dpy, buttons[i].button,
999 buttons[i].mask | modifiers[j],
1000 c->win, False, BUTTONMASK,
1001 GrabModeAsync, GrabModeSync, None, None);
1002 }
1003}
1004
1005void
1006grabkeys(void)
1007{
1008 updatenumlockmask();
1009 {
1010 unsigned int i, j;
1011 unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
1012 KeyCode code;
1013
1014 XUngrabKey(dpy, AnyKey, AnyModifier, root);
1015 for (i = 0; i < LENGTH(keys); i++)
1016 if ((code = XKeysymToKeycode(dpy, keys[i].keysym)))
1017 for (j = 0; j < LENGTH(modifiers); j++)
1018 XGrabKey(dpy, code, keys[i].mod | modifiers[j], root,
1019 True, GrabModeAsync, GrabModeAsync);
1020 }
1021}
1022
5715edf5
AT		 1023#ifdef XINERAMA
1024static int
1025isuniquegeom(XineramaScreenInfo *unique, size_t n, XineramaScreenInfo *info)
1026{
1027 while (n--)
1028 if (unique[n].x_org == info->x_org && unique[n].y_org == info->y_org
1029 && unique[n].width == info->width && unique[n].height == info->height)
1030 return 0;
1031 return 1;
1032}
1033#endif /* XINERAMA */
1034
1035void
1036keypress(XEvent *e)
1037{
1038 unsigned int i;
1039 KeySym keysym;
1040 XKeyEvent *ev;
1041
1042 ev = &e->xkey;
1043 keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
1044 for (i = 0; i < LENGTH(keys); i++)
1045 if (keysym == keys[i].keysym
1046 && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
1047 && keys[i].func)
1048 keys[i].func(&(keys[i].arg));
1049}
1050
1051void
1052killclient(const Arg *arg)
1053{
1054 if (!selmon->sel)
1055 return;
1056 if (!sendevent(selmon->sel, wmatom[WMDelete])) {
1057 XGrabServer(dpy);
1058 XSetErrorHandler(xerrordummy);
1059 XSetCloseDownMode(dpy, DestroyAll);
1060 XKillClient(dpy, selmon->sel->win);
1061 XSync(dpy, False);
1062 XSetErrorHandler(xerror);
1063 XUngrabServer(dpy);
1064 }
1065}
1066
9813966c
AT		 1067void
1068layoutmenu(const Arg *arg) {
1069 FILE *p;
1070 char c[3], *s;
1071 int i;
1072
1073 if (!(p = popen(layoutmenu_cmd, "r")))
1074 return;
1075 s = fgets(c, sizeof(c), p);
1076 pclose(p);
1077
1078 if (!s || *s == '\0' || c[0] == '\0')
1079 return;
1080
1081 i = atoi(c);
1082 setlayout(&((Arg) { .v = &layouts[i] }));
1083}
1084
5715edf5
AT		 1085void
1086manage(Window w, XWindowAttributes *wa)
1087{
1088 Client *c, *t = NULL;
1089 Window trans = None;
1090 XWindowChanges wc;
1091
1092 c = ecalloc(1, sizeof(Client));
1093 c->win = w;
1094 /* geometry */
1095 c->x = c->oldx = wa->x;
1096 c->y = c->oldy = wa->y;
1097 c->w = c->oldw = wa->width;
1098 c->h = c->oldh = wa->height;
1099 c->oldbw = wa->border_width;
1100
1101 updatetitle(c);
1102 if (XGetTransientForHint(dpy, w, &trans) && (t = wintoclient(trans))) {
1103 c->mon = t->mon;
1104 c->tags = t->tags;
1105 } else {
1106 c->mon = selmon;
1107 applyrules(c);
1108 }
1109
1110 if (c->x + WIDTH(c) > c->mon->wx + c->mon->ww)
1111 c->x = c->mon->wx + c->mon->ww - WIDTH(c);
1112 if (c->y + HEIGHT(c) > c->mon->wy + c->mon->wh)
1113 c->y = c->mon->wy + c->mon->wh - HEIGHT(c);
1114 c->x = MAX(c->x, c->mon->wx);
1115 c->y = MAX(c->y, c->mon->wy);
1116 c->bw = borderpx;
1117
1118 wc.border_width = c->bw;
1119 XConfigureWindow(dpy, w, CWBorderWidth, &wc);
1120 XSetWindowBorder(dpy, w, scheme[SchemeNorm][ColBorder].pixel);
1121 configure(c); /* propagates border_width, if size doesn't change */
1122 updatewindowtype(c);
1123 updatesizehints(c);
1124 updatewmhints(c);
1125 XSelectInput(dpy, w, EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask);
1126 grabbuttons(c, 0);
1127 if (!c->isfloating)
1128 c->isfloating = c->oldstate = trans != None || c->isfixed;
1129 if (c->isfloating)
1130 XRaiseWindow(dpy, c->win);
1131 attach(c);
1132 attachstack(c);
1133 XChangeProperty(dpy, root, netatom[NetClientList], XA_WINDOW, 32, PropModeAppend,
1134 (unsigned char *) &(c->win), 1);
1135 XMoveResizeWindow(dpy, c->win, c->x + 2 * sw, c->y, c->w, c->h); /* some windows require this */
1136 setclientstate(c, NormalState);
1137 if (c->mon == selmon)
1138 unfocus(selmon->sel, 0);
1139 c->mon->sel = c;
1140 arrange(c->mon);
1141 XMapWindow(dpy, c->win);
1142 focus(NULL);
1143}
1144
1145void
1146mappingnotify(XEvent *e)
1147{
1148 XMappingEvent *ev = &e->xmapping;
1149
1150 XRefreshKeyboardMapping(ev);
1151 if (ev->request == MappingKeyboard)
1152 grabkeys();
1153}
1154
1155void
1156maprequest(XEvent *e)
1157{
1158 static XWindowAttributes wa;
1159 XMapRequestEvent *ev = &e->xmaprequest;
1160
1161 if (!XGetWindowAttributes(dpy, ev->window, &wa) || wa.override_redirect)
1162 return;
1163 if (!wintoclient(ev->window))
1164 manage(ev->window, &wa);
1165}
1166
1167void
1168monocle(Monitor *m)
1169{
1170 unsigned int n = 0;
1171 Client *c;
1172
1173 for (c = m->clients; c; c = c->next)
1174 if (ISVISIBLE(c))
1175 n++;
1176 if (n > 0) /* override layout symbol */
1177 snprintf(m->ltsymbol, sizeof m->ltsymbol, "[%d]", n);
1178 for (c = nexttiled(m->clients); c; c = nexttiled(c->next))
1179 resize(c, m->wx, m->wy, m->ww - 2 * c->bw, m->wh - 2 * c->bw, 0);
1180}
1181
1182void
1183motionnotify(XEvent *e)
1184{
1185 static Monitor *mon = NULL;
1186 Monitor *m;
1187 XMotionEvent *ev = &e->xmotion;
1188
1189 if (ev->window != root)
1190 return;
1191 if ((m = recttomon(ev->x_root, ev->y_root, 1, 1)) != mon && mon) {
1192 unfocus(selmon->sel, 1);
1193 selmon = m;
1194 focus(NULL);
1195 }
1196 mon = m;
1197}
1198
1199void
1200movemouse(const Arg *arg)
1201{
1202 int x, y, ocx, ocy, nx, ny;
1203 Client *c;
1204 Monitor *m;
1205 XEvent ev;
1206 Time lasttime = 0;
1207
1208 if (!(c = selmon->sel))
1209 return;
1210 if (c->isfullscreen) /* no support moving fullscreen windows by mouse */
1211 return;
1212 restack(selmon);
1213 ocx = c->x;
1214 ocy = c->y;
1215 if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
1216 None, cursor[CurMove]->cursor, CurrentTime) != GrabSuccess)
1217 return;
1218 if (!getrootptr(&x, &y))
1219 return;
1220 do {
1221 XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
1222 switch(ev.type) {
1223 case ConfigureRequest:
1224 case Expose:
1225 case MapRequest:
1226 handler[ev.type](&ev);
1227 break;
1228 case MotionNotify:
1229 if ((ev.xmotion.time - lasttime) <= (1000 / 60))
1230 continue;
1231 lasttime = ev.xmotion.time;
1232
1233 nx = ocx + (ev.xmotion.x - x);
1234 ny = ocy + (ev.xmotion.y - y);
1235 if (abs(selmon->wx - nx) < snap)
1236 nx = selmon->wx;
1237 else if (abs((selmon->wx + selmon->ww) - (nx + WIDTH(c))) < snap)
1238 nx = selmon->wx + selmon->ww - WIDTH(c);
1239 if (abs(selmon->wy - ny) < snap)
1240 ny = selmon->wy;
1241 else if (abs((selmon->wy + selmon->wh) - (ny + HEIGHT(c))) < snap)
1242 ny = selmon->wy + selmon->wh - HEIGHT(c);
1243 if (!c->isfloating && selmon->lt[selmon->sellt]->arrange
1244 && (abs(nx - c->x) > snap || abs(ny - c->y) > snap))
1245 togglefloating(NULL);
1246 if (!selmon->lt[selmon->sellt]->arrange || c->isfloating)
1247 resize(c, nx, ny, c->w, c->h, 1);
1248 break;
1249 }
1250 } while (ev.type != ButtonRelease);
1251 XUngrabPointer(dpy, CurrentTime);
1252 if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) {
1253 sendmon(c, m);
1254 selmon = m;
1255 focus(NULL);
1256 }
1257}
1258
c56e7560
AT		 1259void
1260nametag(const Arg *arg) {
1261 char *p, name[MAX_TAGLEN];
1262 FILE *f;
1263 int i;
1264
1265 errno = 0; // popen(3p) says on failure it "may" set errno
a5832938
AT		 1266 // TODO: Create a central location for the dmenu font specification.
1267 // It should not be hardcoded in multiple locations.
1b6712a5 1268 if(!(f = popen("dmenu -fn monospace:size=12 < /dev/null", "r"))) {
c56e7560
AT		 1269 fprintf(stderr, "dwm: popen 'dmenu < /dev/null' failed%s%s\n", errno ? ": " : "", errno ? strerror(errno) : "");
1270 return;
1271 }
1272 if (!(p = fgets(name, MAX_TAGLEN, f)) && (i = errno) && ferror(f))
1273 fprintf(stderr, "dwm: fgets failed: %s\n", strerror(i));
1274 if (pclose(f) < 0)
1275 fprintf(stderr, "dwm: pclose failed: %s\n", strerror(errno));
1276 if(!p)
1277 return;
1278 if((p = strchr(name, '\n')))
1279 *p = '\0';
1280
1281 for(i = 0; i < LENGTH(tags); i++)
1282 if(selmon->tagset[selmon->seltags] & (1 << i))
1283 strcpy(tags[i], name);
1284 drawbars();
1285}
1286
5715edf5
AT		 1287Client *
1288nexttiled(Client *c)
1289{
1290 for (; c && (c->isfloating || !ISVISIBLE(c)); c = c->next);
1291 return c;
1292}
1293
1294void
1295pop(Client *c)
1296{
1297 detach(c);
1298 attach(c);
1299 focus(c);
1300 arrange(c->mon);
1301}
1302
1303void
1304propertynotify(XEvent *e)
1305{
1306 Client *c;
1307 Window trans;
1308 XPropertyEvent *ev = &e->xproperty;
1309
1310 if ((ev->window == root) && (ev->atom == XA_WM_NAME))
1311 updatestatus();
1312 else if (ev->state == PropertyDelete)
1313 return; /* ignore */
1314 else if ((c = wintoclient(ev->window))) {
1315 switch(ev->atom) {
1316 default: break;
1317 case XA_WM_TRANSIENT_FOR:
1318 if (!c->isfloating && (XGetTransientForHint(dpy, c->win, &trans)) &&
1319 (c->isfloating = (wintoclient(trans)) != NULL))
1320 arrange(c->mon);
1321 break;
1322 case XA_WM_NORMAL_HINTS:
1323 c->hintsvalid = 0;
1324 break;
1325 case XA_WM_HINTS:
1326 updatewmhints(c);
1327 drawbars();
1328 break;
1329 }
1330 if (ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
1331 updatetitle(c);
1332 if (c == c->mon->sel)
1333 drawbar(c->mon);
1334 }
1335 if (ev->atom == netatom[NetWMWindowType])
1336 updatewindowtype(c);
1337 }
1338}
1339
1340void
1341quit(const Arg *arg)
1342{
1343 running = 0;
1344}
1345
1da78b82
AT		 1346void
1347quitprompt(const Arg *arg)
1348{
a5832938
AT		 1349 // TODO: Create a central location for the dmenu font specification.
1350 // It should not be hardcoded in multiple locations.
1b6712a5 1351 FILE *pp = popen("echo -e \"no\nrestart\nyes\" | dmenu -fn monospace:size=12 -i -sb red -p \"Quit DWM?\"", "r");
1da78b82
AT		 1352 if(pp != NULL) {
1353 char buf[1024];
1354 if (fgets(buf, sizeof(buf), pp) == NULL) {
1355 fprintf(stderr, "Quitprompt: Error reading pipe!\n");
1356 return;
1357 }
1358 if (strcmp(buf, "yes\n") == 0) {
1359 pclose(pp);
1360 restart = 0;
1361 quit(NULL);
1362 } else if (strcmp(buf, "restart\n") == 0) {
1363 pclose(pp);
1364 restart = 1;
1365 quit(NULL);
1366 } else if (strcmp(buf, "no\n") == 0) {
1367 pclose(pp);
1368 return;
1369 }
1370 }
1371}
1372
5715edf5
AT		 1373Monitor *
1374recttomon(int x, int y, int w, int h)
1375{
1376 Monitor *m, *r = selmon;
1377 int a, area = 0;
1378
1379 for (m = mons; m; m = m->next)
1380 if ((a = INTERSECT(x, y, w, h, m)) > area) {
1381 area = a;
1382 r = m;
1383 }
1384 return r;
1385}
1386
1387void
1388resize(Client *c, int x, int y, int w, int h, int interact)
1389{
1390 if (applysizehints(c, &x, &y, &w, &h, interact))
1391 resizeclient(c, x, y, w, h);
1392}
1393
1394void
1395resizeclient(Client *c, int x, int y, int w, int h)
1396{
1397 XWindowChanges wc;
1398
1399 c->oldx = c->x; c->x = wc.x = x;
1400 c->oldy = c->y; c->y = wc.y = y;
1401 c->oldw = c->w; c->w = wc.width = w;
1402 c->oldh = c->h; c->h = wc.height = h;
1403 wc.border_width = c->bw;
1404 XConfigureWindow(dpy, c->win, CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc);
1405 configure(c);
1406 XSync(dpy, False);
1407}
1408
1409void
1410resizemouse(const Arg *arg)
1411{
1412 int ocx, ocy, nw, nh;
1413 Client *c;
1414 Monitor *m;
1415 XEvent ev;
1416 Time lasttime = 0;
1417
1418 if (!(c = selmon->sel))
1419 return;
1420 if (c->isfullscreen) /* no support resizing fullscreen windows by mouse */
1421 return;
1422 restack(selmon);
1423 ocx = c->x;
1424 ocy = c->y;
1425 if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
1426 None, cursor[CurResize]->cursor, CurrentTime) != GrabSuccess)
1427 return;
1428 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
1429 do {
1430 XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
1431 switch(ev.type) {
1432 case ConfigureRequest:
1433 case Expose:
1434 case MapRequest:
1435 handler[ev.type](&ev);
1436 break;
1437 case MotionNotify:
1438 if ((ev.xmotion.time - lasttime) <= (1000 / 60))
1439 continue;
1440 lasttime = ev.xmotion.time;
1441
1442 nw = MAX(ev.xmotion.x - ocx - 2 * c->bw + 1, 1);
1443 nh = MAX(ev.xmotion.y - ocy - 2 * c->bw + 1, 1);
1444 if (c->mon->wx + nw >= selmon->wx && c->mon->wx + nw <= selmon->wx + selmon->ww
1445 && c->mon->wy + nh >= selmon->wy && c->mon->wy + nh <= selmon->wy + selmon->wh)
1446 {
1447 if (!c->isfloating && selmon->lt[selmon->sellt]->arrange
1448 && (abs(nw - c->w) > snap || abs(nh - c->h) > snap))
1449 togglefloating(NULL);
1450 }
1451 if (!selmon->lt[selmon->sellt]->arrange || c->isfloating)
1452 resize(c, c->x, c->y, nw, nh, 1);
1453 break;
1454 }
1455 } while (ev.type != ButtonRelease);
1456 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
1457 XUngrabPointer(dpy, CurrentTime);
1458 while (XCheckMaskEvent(dpy, EnterWindowMask, &ev));
1459 if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) {
1460 sendmon(c, m);
1461 selmon = m;
1462 focus(NULL);
1463 }
1464}
1465
1466void
1467restack(Monitor *m)
1468{
1469 Client *c;
1470 XEvent ev;
1471 XWindowChanges wc;
1472
1473 drawbar(m);
1474 if (!m->sel)
1475 return;
1476 if (m->sel->isfloating || !m->lt[m->sellt]->arrange)
1477 XRaiseWindow(dpy, m->sel->win);
1478 if (m->lt[m->sellt]->arrange) {
1479 wc.stack_mode = Below;
1480 wc.sibling = m->barwin;
1481 for (c = m->stack; c; c = c->snext)
1482 if (!c->isfloating && ISVISIBLE(c)) {
1483 XConfigureWindow(dpy, c->win, CWSibling|CWStackMode, &wc);
1484 wc.sibling = c->win;
1485 }
1486 }
1487 XSync(dpy, False);
1488 while (XCheckMaskEvent(dpy, EnterWindowMask, &ev));
1489}
1490
1491void
1492run(void)
1493{
1494 XEvent ev;
1495 /* main event loop */
1496 XSync(dpy, False);
1497 while (running && !XNextEvent(dpy, &ev))
1498 if (handler[ev.type])
1499 handler[ev.type](&ev); /* call handler */
1500}
1501
1502void
1503scan(void)
1504{
1505 unsigned int i, num;
1506 Window d1, d2, *wins = NULL;
1507 XWindowAttributes wa;
1508
1509 if (XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
1510 for (i = 0; i < num; i++) {
1511 if (!XGetWindowAttributes(dpy, wins[i], &wa)
1512 || wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
1513 continue;
1514 if (wa.map_state == IsViewable || getstate(wins[i]) == IconicState)
1515 manage(wins[i], &wa);
1516 }
1517 for (i = 0; i < num; i++) { /* now the transients */
1518 if (!XGetWindowAttributes(dpy, wins[i], &wa))
1519 continue;
1520 if (XGetTransientForHint(dpy, wins[i], &d1)
1521 && (wa.map_state == IsViewable || getstate(wins[i]) == IconicState))
1522 manage(wins[i], &wa);
1523 }
1524 if (wins)
1525 XFree(wins);
1526 }
1527}
1528
1529void
1530sendmon(Client *c, Monitor *m)
1531{
1532 if (c->mon == m)
1533 return;
1534 unfocus(c, 1);
1535 detach(c);
1536 detachstack(c);
1537 c->mon = m;
ba835934 1538 c->tags = (m->tagset[m->seltags] ? m->tagset[m->seltags] : 1);
5715edf5
AT		 1539 attach(c);
1540 attachstack(c);
1541 focus(NULL);
1542 arrange(NULL);
1543}
1544
1545void
1546setclientstate(Client *c, long state)
1547{
1548 long data[] = { state, None };
1549
1550 XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,
1551 PropModeReplace, (unsigned char *)data, 2);
1552}
1553
1554int
1555sendevent(Client *c, Atom proto)
1556{
1557 int n;
1558 Atom *protocols;
1559 int exists = 0;
1560 XEvent ev;
1561
1562 if (XGetWMProtocols(dpy, c->win, &protocols, &n)) {
1563 while (!exists && n--)
1564 exists = protocols[n] == proto;
1565 XFree(protocols);
1566 }
1567 if (exists) {
1568 ev.type = ClientMessage;
1569 ev.xclient.window = c->win;
1570 ev.xclient.message_type = wmatom[WMProtocols];
1571 ev.xclient.format = 32;
1572 ev.xclient.data.l[0] = proto;
1573 ev.xclient.data.l[1] = CurrentTime;
1574 XSendEvent(dpy, c->win, False, NoEventMask, &ev);
1575 }
1576 return exists;
1577}
1578
1579void
1580setfocus(Client *c)
1581{
1582 if (!c->neverfocus) {
1583 XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
1584 XChangeProperty(dpy, root, netatom[NetActiveWindow],
1585 XA_WINDOW, 32, PropModeReplace,
1586 (unsigned char *) &(c->win), 1);
1587 }
1588 sendevent(c, wmatom[WMTakeFocus]);
1589}
1590
1591void
1592setfullscreen(Client *c, int fullscreen)
1593{
1594 if (fullscreen && !c->isfullscreen) {
1595 XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
1596 PropModeReplace, (unsigned char*)&netatom[NetWMFullscreen], 1);
1597 c->isfullscreen = 1;
1598 c->oldstate = c->isfloating;
1599 c->oldbw = c->bw;
1600 c->bw = 0;
1601 c->isfloating = 1;
1602 resizeclient(c, c->mon->mx, c->mon->my, c->mon->mw, c->mon->mh);
1603 XRaiseWindow(dpy, c->win);
1604 } else if (!fullscreen && c->isfullscreen){
1605 XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
1606 PropModeReplace, (unsigned char*)0, 0);
1607 c->isfullscreen = 0;
1608 c->isfloating = c->oldstate;
1609 c->bw = c->oldbw;
1610 c->x = c->oldx;
1611 c->y = c->oldy;
1612 c->w = c->oldw;
1613 c->h = c->oldh;
1614 resizeclient(c, c->x, c->y, c->w, c->h);
1615 arrange(c->mon);
1616 }
1617}
1618
1619void
1620setlayout(const Arg *arg)
1621{
1622 if (!arg || !arg->v || arg->v != selmon->lt[selmon->sellt])
1623 selmon->sellt ^= 1;
1624 if (arg && arg->v)
5191f252 1625 selmon->lt[selmon->sellt] = selmon->lts[selmon->curtag] = (Layout *)arg->v;
5715edf5
AT		 1626 strncpy(selmon->ltsymbol, selmon->lt[selmon->sellt]->symbol, sizeof selmon->ltsymbol);
1627 if (selmon->sel)
1628 arrange(selmon);
1629 else
1630 drawbar(selmon);
1631}
1632
1633/* arg > 1.0 will set mfact absolutely */
1634void
1635setmfact(const Arg *arg)
1636{
1637 float f;
1638
1639 if (!arg || !selmon->lt[selmon->sellt]->arrange)
1640 return;
1641 f = arg->f < 1.0 ? arg->f + selmon->mfact : arg->f - 1.0;
1642 if (f < 0.05 || f > 0.95)
1643 return;
5191f252 1644 selmon->mfact = selmon->mfacts[selmon->curtag] = f;
5715edf5
AT		 1645 arrange(selmon);
1646}
1647
1648void
1649setup(void)
1650{
1651 int i;
1652 XSetWindowAttributes wa;
1653 Atom utf8string;
1654
1655 /* clean up any zombies immediately */
1656 sigchld(0);
1657
1658 /* init screen */
1659 screen = DefaultScreen(dpy);
1660 sw = DisplayWidth(dpy, screen);
1661 sh = DisplayHeight(dpy, screen);
1662 root = RootWindow(dpy, screen);
1663 drw = drw_create(dpy, screen, root, sw, sh);
1664 if (!drw_fontset_create(drw, fonts, LENGTH(fonts)))
1665 die("no fonts could be loaded.");
1666 lrpad = drw->fonts->h;
1667 bh = drw->fonts->h + 2;
1668 updategeom();
1669 /* init atoms */
1670 utf8string = XInternAtom(dpy, "UTF8_STRING", False);
1671 wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
1672 wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
1673 wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);
1674 wmatom[WMTakeFocus] = XInternAtom(dpy, "WM_TAKE_FOCUS", False);
1675 netatom[NetActiveWindow] = XInternAtom(dpy, "_NET_ACTIVE_WINDOW", False);
1676 netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
1677 netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
1678 netatom[NetWMState] = XInternAtom(dpy, "_NET_WM_STATE", False);
1679 netatom[NetWMCheck] = XInternAtom(dpy, "_NET_SUPPORTING_WM_CHECK", False);
1680 netatom[NetWMFullscreen] = XInternAtom(dpy, "_NET_WM_STATE_FULLSCREEN", False);
1681 netatom[NetWMWindowType] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False);
1682 netatom[NetWMWindowTypeDialog] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False);
1683 netatom[NetClientList] = XInternAtom(dpy, "_NET_CLIENT_LIST", False);
1684 /* init cursors */
1685 cursor[CurNormal] = drw_cur_create(drw, XC_left_ptr);
1686 cursor[CurResize] = drw_cur_create(drw, XC_sizing);
1687 cursor[CurMove] = drw_cur_create(drw, XC_fleur);
1688 /* init appearance */
1689 scheme = ecalloc(LENGTH(colors), sizeof(Clr *));
1690 for (i = 0; i < LENGTH(colors); i++)
1691 scheme[i] = drw_scm_create(drw, colors[i], 3);
1692 /* init bars */
1693 updatebars();
1694 updatestatus();
1695 /* supporting window for NetWMCheck */
1696 wmcheckwin = XCreateSimpleWindow(dpy, root, 0, 0, 1, 1, 0, 0, 0);
1697 XChangeProperty(dpy, wmcheckwin, netatom[NetWMCheck], XA_WINDOW, 32,
1698 PropModeReplace, (unsigned char *) &wmcheckwin, 1);
1699 XChangeProperty(dpy, wmcheckwin, netatom[NetWMName], utf8string, 8,
1700 PropModeReplace, (unsigned char *) "dwm", 3);
1701 XChangeProperty(dpy, root, netatom[NetWMCheck], XA_WINDOW, 32,
1702 PropModeReplace, (unsigned char *) &wmcheckwin, 1);
1703 /* EWMH support per view */
1704 XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
1705 PropModeReplace, (unsigned char *) netatom, NetLast);
1706 XDeleteProperty(dpy, root, netatom[NetClientList]);
1707 /* select events */
1708 wa.cursor = cursor[CurNormal]->cursor;
1709 wa.event_mask = SubstructureRedirectMask|SubstructureNotifyMask
1710 |ButtonPressMask|PointerMotionMask|EnterWindowMask
1711 |LeaveWindowMask|StructureNotifyMask|PropertyChangeMask;
1712 XChangeWindowAttributes(dpy, root, CWEventMask|CWCursor, &wa);
1713 XSelectInput(dpy, root, wa.event_mask);
1714 grabkeys();
1715 focus(NULL);
1716}
1717
1718void
1719seturgent(Client *c, int urg)
1720{
1721 XWMHints *wmh;
1722
1723 c->isurgent = urg;
1724 if (!(wmh = XGetWMHints(dpy, c->win)))
1725 return;
1726 wmh->flags = urg ? (wmh->flags | XUrgencyHint) : (wmh->flags & ~XUrgencyHint);
1727 XSetWMHints(dpy, c->win, wmh);
1728 XFree(wmh);
1729}
1730
1731void
1732showhide(Client *c)
1733{
1734 if (!c)
1735 return;
1736 if (ISVISIBLE(c)) {
1737 /* show clients top down */
1738 XMoveWindow(dpy, c->win, c->x, c->y);
1739 if ((!c->mon->lt[c->mon->sellt]->arrange || c->isfloating) && !c->isfullscreen)
1740 resize(c, c->x, c->y, c->w, c->h, 0);
1741 showhide(c->snext);
1742 } else {
1743 /* hide clients bottom up */
1744 showhide(c->snext);
1745 XMoveWindow(dpy, c->win, WIDTH(c) * -2, c->y);
1746 }
1747}
1748
1749void
1750sigchld(int unused)
1751{
1752 if (signal(SIGCHLD, sigchld) == SIG_ERR)
1753 die("can't install SIGCHLD handler:");
1754 while (0 < waitpid(-1, NULL, WNOHANG));
1755}
1756
1757void
1758spawn(const Arg *arg)
1759{
1760 if (fork() == 0) {
1761 if (dpy)
1762 close(ConnectionNumber(dpy));
1763 setsid();
1764 execvp(((char **)arg->v)[0], (char **)arg->v);
1765 die("dwm: execvp '%s' failed:", ((char **)arg->v)[0]);
1766 }
1767}
1768
1769void
1770tag(const Arg *arg)
1771{
1772 if (selmon->sel && arg->ui & TAGMASK) {
1773 selmon->sel->tags = arg->ui & TAGMASK;
1774 focus(NULL);
1775 arrange(selmon);
1776 }
1777}
1778
1779void
1780tagmon(const Arg *arg)
1781{
1782 if (!selmon->sel || !mons->next)
1783 return;
1784 sendmon(selmon->sel, dirtomon(arg->i));
1785}
1786
5715edf5
AT		 1787void
1788togglebar(const Arg *arg)
1789{
5191f252 1790 selmon->showbar = selmon->showbars[selmon->curtag] = !selmon->showbar;
5715edf5
AT		 1791 updatebarpos(selmon);
1792 XMoveResizeWindow(dpy, selmon->barwin, selmon->wx, selmon->by, selmon->ww, bh);
1793 arrange(selmon);
1794}
1795
1796void
1797togglefloating(const Arg *arg)
1798{
1799 if (!selmon->sel)
1800 return;
1801 if (selmon->sel->isfullscreen) /* no support for fullscreen windows */
1802 return;
1803 selmon->sel->isfloating = !selmon->sel->isfloating || selmon->sel->isfixed;
1804 if (selmon->sel->isfloating)
1805 resize(selmon->sel, selmon->sel->x, selmon->sel->y,
1806 selmon->sel->w, selmon->sel->h, 0);
1807 arrange(selmon);
1808}
1809
1810void
1811toggletag(const Arg *arg)
1812{
1813 unsigned int newtags;
5191f252 1814 unsigned int i;
5715edf5
AT		 1815
1816 if (!selmon->sel)
1817 return;
1818 newtags = selmon->sel->tags ^ (arg->ui & TAGMASK);
1819 if (newtags) {
1820 selmon->sel->tags = newtags;
5191f252
AT		 1821 if(newtags == ~0) {
1822 selmon->prevtag = selmon->curtag;
1823 selmon->curtag = 0;
1824 }
1825 if(!(newtags & 1 << (selmon->curtag - 1))) {
1826 selmon->prevtag = selmon->curtag;
1827 for (i=0; !(newtags & 1 << i); i++);
1828 selmon->curtag = i + 1;
1829 }
1830 selmon->sel->tags = newtags;
1831 selmon->lt[selmon->sellt] = selmon->lts[selmon->curtag];
1832 selmon->mfact = selmon->mfacts[selmon->curtag];
1833 if (selmon->showbar != selmon->showbars[selmon->curtag])
1834 togglebar(NULL);
1835 selmon->ltaxis[0] = selmon->ltaxes[selmon->curtag][0];
1836 selmon->ltaxis[1] = selmon->ltaxes[selmon->curtag][1];
1837 selmon->ltaxis[2] = selmon->ltaxes[selmon->curtag][2];
1838 selmon->msplit = selmon->msplits[selmon->curtag];
5715edf5
AT		 1839 focus(NULL);
1840 arrange(selmon);
1841 }
1842}
1843
1844void
1845toggleview(const Arg *arg)
1846{
1847 unsigned int newtagset = selmon->tagset[selmon->seltags] ^ (arg->ui & TAGMASK);
1848
ba835934
AT		 1849 selmon->tagset[selmon->seltags] = newtagset;
1850 focus(NULL);
1851 arrange(selmon);
5715edf5
AT		 1852}
1853
1854void
1855unfocus(Client *c, int setfocus)
1856{
1857 if (!c)
1858 return;
1859 grabbuttons(c, 0);
1860 XSetWindowBorder(dpy, c->win, scheme[SchemeNorm][ColBorder].pixel);
1861 if (setfocus) {
1862 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
1863 XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
1864 }
1865}
1866
1867void
1868unmanage(Client *c, int destroyed)
1869{
1870 Monitor *m = c->mon;
1871 XWindowChanges wc;
1872
1873 detach(c);
1874 detachstack(c);
1875 if (!destroyed) {
1876 wc.border_width = c->oldbw;
1877 XGrabServer(dpy); /* avoid race conditions */
1878 XSetErrorHandler(xerrordummy);
1879 XSelectInput(dpy, c->win, NoEventMask);
1880 XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */
1881 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
1882 setclientstate(c, WithdrawnState);
1883 XSync(dpy, False);
1884 XSetErrorHandler(xerror);
1885 XUngrabServer(dpy);
1886 }
1887 free(c);
1888 focus(NULL);
1889 updateclientlist();
1890 arrange(m);
1891}
1892
1893void
1894unmapnotify(XEvent *e)
1895{
1896 Client *c;
1897 XUnmapEvent *ev = &e->xunmap;
1898
1899 if ((c = wintoclient(ev->window))) {
1900 if (ev->send_event)
1901 setclientstate(c, WithdrawnState);
1902 else
1903 unmanage(c, 0);
1904 }
1905}
1906
1907void
1908updatebars(void)
1909{
1910 Monitor *m;
1911 XSetWindowAttributes wa = {
1912 .override_redirect = True,
1913 .background_pixmap = ParentRelative,
1914 .event_mask = ButtonPressMask|ExposureMask
1915 };
1916 XClassHint ch = {"dwm", "dwm"};
1917 for (m = mons; m; m = m->next) {
1918 if (m->barwin)
1919 continue;
1920 m->barwin = XCreateWindow(dpy, root, m->wx, m->by, m->ww, bh, 0, DefaultDepth(dpy, screen),
1921 CopyFromParent, DefaultVisual(dpy, screen),
1922 CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
1923 XDefineCursor(dpy, m->barwin, cursor[CurNormal]->cursor);
1924 XMapRaised(dpy, m->barwin);
1925 XSetClassHint(dpy, m->barwin, &ch);
1926 }
1927}
1928
1929void
1930updatebarpos(Monitor *m)
1931{
1932 m->wy = m->my;
1933 m->wh = m->mh;
1934 if (m->showbar) {
1935 m->wh -= bh;
1936 m->by = m->topbar ? m->wy : m->wy + m->wh;
1937 m->wy = m->topbar ? m->wy + bh : m->wy;
1938 } else
1939 m->by = -bh;
1940}
1941
1942void
1943updateclientlist()
1944{
1945 Client *c;
1946 Monitor *m;
1947
1948 XDeleteProperty(dpy, root, netatom[NetClientList]);
1949 for (m = mons; m; m = m->next)
1950 for (c = m->clients; c; c = c->next)
1951 XChangeProperty(dpy, root, netatom[NetClientList],
1952 XA_WINDOW, 32, PropModeAppend,
1953 (unsigned char *) &(c->win), 1);
1954}
1955
1956int
1957updategeom(void)
1958{
1959 int dirty = 0;
1960
1961#ifdef XINERAMA
1962 if (XineramaIsActive(dpy)) {
1963 int i, j, n, nn;
1964 Client *c;
1965 Monitor *m;
1966 XineramaScreenInfo *info = XineramaQueryScreens(dpy, &nn);
1967 XineramaScreenInfo *unique = NULL;
1968
1969 for (n = 0, m = mons; m; m = m->next, n++);
1970 /* only consider unique geometries as separate screens */
1971 unique = ecalloc(nn, sizeof(XineramaScreenInfo));
1972 for (i = 0, j = 0; i < nn; i++)
1973 if (isuniquegeom(unique, j, &info[i]))
1974 memcpy(&unique[j++], &info[i], sizeof(XineramaScreenInfo));
1975 XFree(info);
1976 nn = j;
1977
1978 /* new monitors if nn > n */
1979 for (i = n; i < nn; i++) {
1980 for (m = mons; m && m->next; m = m->next);
1981 if (m)
1982 m->next = createmon();
1983 else
1984 mons = createmon();
1985 }
1986 for (i = 0, m = mons; i < nn && m; m = m->next, i++)
1987 if (i >= n
1988 || unique[i].x_org != m->mx || unique[i].y_org != m->my
1989 || unique[i].width != m->mw || unique[i].height != m->mh)
1990 {
1991 dirty = 1;
1992 m->num = i;
1993 m->mx = m->wx = unique[i].x_org;
1994 m->my = m->wy = unique[i].y_org;
1995 m->mw = m->ww = unique[i].width;
1996 m->mh = m->wh = unique[i].height;
1997 updatebarpos(m);
1998 }
1999 /* removed monitors if n > nn */
2000 for (i = nn; i < n; i++) {
2001 for (m = mons; m && m->next; m = m->next);
2002 while ((c = m->clients)) {
2003 dirty = 1;
2004 m->clients = c->next;
2005 detachstack(c);
2006 c->mon = mons;
2007 attach(c);
2008 attachstack(c);
2009 }
2010 if (m == selmon)
2011 selmon = mons;
2012 cleanupmon(m);
2013 }
2014 free(unique);
2015 } else
2016#endif /* XINERAMA */
2017 { /* default monitor setup */
2018 if (!mons)
2019 mons = createmon();
2020 if (mons->mw != sw || mons->mh != sh) {
2021 dirty = 1;
2022 mons->mw = mons->ww = sw;
2023 mons->mh = mons->wh = sh;
2024 updatebarpos(mons);
2025 }
2026 }
2027 if (dirty) {
2028 selmon = mons;
2029 selmon = wintomon(root);
2030 }
2031 return dirty;
2032}
2033
2034void
2035updatenumlockmask(void)
2036{
2037 unsigned int i, j;
2038 XModifierKeymap *modmap;
2039
2040 numlockmask = 0;
2041 modmap = XGetModifierMapping(dpy);
2042 for (i = 0; i < 8; i++)
2043 for (j = 0; j < modmap->max_keypermod; j++)
2044 if (modmap->modifiermap[i * modmap->max_keypermod + j]
2045 == XKeysymToKeycode(dpy, XK_Num_Lock))
2046 numlockmask = (1 << i);
2047 XFreeModifiermap(modmap);
2048}
2049
2050void
2051updatesizehints(Client *c)
2052{
2053 long msize;
2054 XSizeHints size;
2055
2056 if (!XGetWMNormalHints(dpy, c->win, &size, &msize))
2057 /* size is uninitialized, ensure that size.flags aren't used */
2058 size.flags = PSize;
2059 if (size.flags & PBaseSize) {
2060 c->basew = size.base_width;
2061 c->baseh = size.base_height;
2062 } else if (size.flags & PMinSize) {
2063 c->basew = size.min_width;
2064 c->baseh = size.min_height;
2065 } else
2066 c->basew = c->baseh = 0;
2067 if (size.flags & PResizeInc) {
2068 c->incw = size.width_inc;
2069 c->inch = size.height_inc;
2070 } else
2071 c->incw = c->inch = 0;
2072 if (size.flags & PMaxSize) {
2073 c->maxw = size.max_width;
2074 c->maxh = size.max_height;
2075 } else
2076 c->maxw = c->maxh = 0;
2077 if (size.flags & PMinSize) {
2078 c->minw = size.min_width;
2079 c->minh = size.min_height;
2080 } else if (size.flags & PBaseSize) {
2081 c->minw = size.base_width;
2082 c->minh = size.base_height;
2083 } else
2084 c->minw = c->minh = 0;
2085 if (size.flags & PAspect) {
2086 c->mina = (float)size.min_aspect.y / size.min_aspect.x;
2087 c->maxa = (float)size.max_aspect.x / size.max_aspect.y;
2088 } else
2089 c->maxa = c->mina = 0.0;
2090 c->isfixed = (c->maxw && c->maxh && c->maxw == c->minw && c->maxh == c->minh);
2091 c->hintsvalid = 1;
2092}
2093
2094void
2095updatestatus(void)
2096{
2097 if (!gettextprop(root, XA_WM_NAME, stext, sizeof(stext)))
2098 strcpy(stext, "dwm-"VERSION);
2099 drawbar(selmon);
2100}
2101
2102void
2103updatetitle(Client *c)
2104{
2105 if (!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
2106 gettextprop(c->win, XA_WM_NAME, c->name, sizeof c->name);
2107 if (c->name[0] == '\0') /* hack to mark broken clients */
2108 strcpy(c->name, broken);
2109}
2110
2111void
2112updatewindowtype(Client *c)
2113{
2114 Atom state = getatomprop(c, netatom[NetWMState]);
2115 Atom wtype = getatomprop(c, netatom[NetWMWindowType]);
2116
2117 if (state == netatom[NetWMFullscreen])
2118 setfullscreen(c, 1);
2119 if (wtype == netatom[NetWMWindowTypeDialog])
2120 c->isfloating = 1;
2121}
2122
2123void
2124updatewmhints(Client *c)
2125{
2126 XWMHints *wmh;
2127
2128 if ((wmh = XGetWMHints(dpy, c->win))) {
2129 if (c == selmon->sel && wmh->flags & XUrgencyHint) {
2130 wmh->flags &= ~XUrgencyHint;
2131 XSetWMHints(dpy, c->win, wmh);
2132 } else
2133 c->isurgent = (wmh->flags & XUrgencyHint) ? 1 : 0;
2134 if (wmh->flags & InputHint)
2135 c->neverfocus = !wmh->input;
2136 else
2137 c->neverfocus = 0;
2138 XFree(wmh);
2139 }
2140}
2141
2142void
2143view(const Arg *arg)
2144{
5191f252
AT		 2145 unsigned int i;
2146
ba835934 2147 if(arg->ui && (arg->ui & TAGMASK) == selmon->tagset[selmon->seltags])
5715edf5
AT		 2148 return;
2149 selmon->seltags ^= 1; /* toggle sel tagset */
5191f252 2150 if (arg->ui & TAGMASK) {
5715edf5 2151 selmon->tagset[selmon->seltags] = arg->ui & TAGMASK;
5191f252
AT		 2152 selmon->prevtag = selmon->curtag;
2153 if(arg->ui == ~0)
2154 selmon->curtag = 0;
2155 else {
2156 for (i=0; !(arg->ui & 1 << i); i++);
2157 selmon->curtag = i + 1;
2158 }
2159 } else {
2160 selmon->prevtag = selmon->curtag ^ selmon->prevtag;
2161 selmon->curtag ^= selmon->prevtag;
2162 selmon->prevtag = selmon->curtag ^ selmon->prevtag;
2163 }
2164 selmon->lt[selmon->sellt] = selmon->lts[selmon->curtag];
2165 selmon->mfact = selmon->mfacts[selmon->curtag];
2166 if(selmon->showbar != selmon->showbars[selmon->curtag])
2167 togglebar(NULL);
2168 selmon->ltaxis[0] = selmon->ltaxes[selmon->curtag][0];
2169 selmon->ltaxis[1] = selmon->ltaxes[selmon->curtag][1];
2170 selmon->ltaxis[2] = selmon->ltaxes[selmon->curtag][2];
2171 selmon->msplit = selmon->msplits[selmon->curtag];
5715edf5
AT		 2172 focus(NULL);
2173 arrange(selmon);
2174}
2175
2176Client *
2177wintoclient(Window w)
2178{
2179 Client *c;
2180 Monitor *m;
2181
2182 for (m = mons; m; m = m->next)
2183 for (c = m->clients; c; c = c->next)
2184 if (c->win == w)
2185 return c;
2186 return NULL;
2187}
2188
2189Monitor *
2190wintomon(Window w)
2191{
2192 int x, y;
2193 Client *c;
2194 Monitor *m;
2195
2196 if (w == root && getrootptr(&x, &y))
2197 return recttomon(x, y, 1, 1);
2198 for (m = mons; m; m = m->next)
2199 if (w == m->barwin)
2200 return m;
2201 if ((c = wintoclient(w)))
2202 return c->mon;
2203 return selmon;
2204}
2205
2206/* There's no way to check accesses to destroyed windows, thus those cases are
2207 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
2208 * default error handler, which may call exit. */
2209int
2210xerror(Display *dpy, XErrorEvent *ee)
2211{
2212 if (ee->error_code == BadWindow
2213 || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
2214 || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
2215 || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
2216 || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
2217 || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
2218 || (ee->request_code == X_GrabButton && ee->error_code == BadAccess)
2219 || (ee->request_code == X_GrabKey && ee->error_code == BadAccess)
2220 || (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
2221 return 0;
2222 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
2223 ee->request_code, ee->error_code);
2224 return xerrorxlib(dpy, ee); /* may call exit */
2225}
2226
2227int
2228xerrordummy(Display *dpy, XErrorEvent *ee)
2229{
2230 return 0;
2231}
2232
2233/* Startup Error handler to check if another window manager
2234 * is already running. */
2235int
2236xerrorstart(Display *dpy, XErrorEvent *ee)
2237{
2238 die("dwm: another window manager is already running");
2239 return -1;
2240}
2241
2242void
2243zoom(const Arg *arg)
2244{
2245 Client *c = selmon->sel;
2246
2247 if (!selmon->lt[selmon->sellt]->arrange || !c || c->isfloating)
2248 return;
2249 if (c == nexttiled(selmon->clients) && !(c = nexttiled(c->next)))
2250 return;
2251 pop(c);
2252}
2253
2254int
2255main(int argc, char *argv[])
2256{
2257 if (argc == 2 && !strcmp("-v", argv[1]))
2258 die("dwm-"VERSION);
2259 else if (argc != 1)
2260 die("usage: dwm [-v]");
2261 if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
2262 fputs("warning: no locale support\n", stderr);
2263 if (!(dpy = XOpenDisplay(NULL)))
2264 die("dwm: cannot open display");
2265 checkotherwm();
2266 setup();
2267#ifdef __OpenBSD__
2268 if (pledge("stdio rpath proc exec", NULL) == -1)
2269 die("pledge");
2270#endif /* __OpenBSD__ */
2271 scan();
2272 run();
2273 cleanup();
2274 XCloseDisplay(dpy);
1da78b82 2275 if (restart == 1) {
2ec77049 2276 execlp("dwm-sgk", "dwm-sgk", NULL);
1da78b82 2277 }
5715edf5
AT		 2278 return EXIT_SUCCESS;
2279}
Personal fork of window manager 'dwm'. See README for modifications.