dwm.c - dwm - dynamic window manager
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dwm.c (71014B)
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1 /* See LICENSE file for copyright and license details.
2 *
3 * dynamic window manager is designed like any other X client as well. It is
4 * driven through handling X events. In contrast to other X clients, a window
5 * manager selects for SubstructureRedirectMask on the root window, to receive
6 * events about window (dis-)appearance. Only one X connection at a time is
7 * allowed to select for this event mask.
8 *
9 * The event handlers of dwm are organized in an array which is accessed
10 * whenever a new event has been fetched. This allows event dispatching
11 * in O(1) time.
12 *
13 * Each child of the root window is called a client, except windows which have
14 * set the override_redirect flag. Clients are organized in a linked client
15 * list on each monitor, the focus history is remembered through a stack list
16 * on each monitor. Each client contains a bit array to indicate the tags of a
17 * client.
18 *
19 * Keys and tagging rules are organized as arrays and defined in config.h.
20 *
21 * To understand everything else, start reading main().
22 */
23 #include <errno.h>
24 #include <locale.h>
25 #include <signal.h>
26 #include <stdarg.h>
27 #include <stdio.h>
28 #include <stdlib.h>
29 #include <string.h>
30 #include <unistd.h>
31 #include <sys/types.h>
32 #include <sys/wait.h>
33 #include <X11/cursorfont.h>
34 #include <X11/keysym.h>
35 #include <X11/Xatom.h>
36 #include <X11/Xlib.h>
37 #include <X11/Xproto.h>
38 #include <X11/Xutil.h>
39 #ifdef XINERAMA
40 #include <X11/extensions/Xinerama.h>
41 #endif /* XINERAMA */
42 #include <X11/Xft/Xft.h>
43
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 #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 /* enums */
74 enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
75 enum { SchemeNorm, SchemeSel }; /* color schemes */
76 enum { NetSupported, NetWMName, NetWMState, NetWMCheck,
77 NetSystemTray, NetSystemTrayOP, NetSystemTrayOrientation, NetSystemTrayOrientationHorz,
78 NetWMFullscreen, NetActiveWindow, NetWMWindowType,
79 NetWMWindowTypeDialog, NetClientList, NetLast }; /* EWMH atoms */
80 enum { Manager, Xembed, XembedInfo, XLast }; /* Xembed atoms */
81 enum { WMProtocols, WMDelete, WMState, WMTakeFocus, WMLast }; /* default atoms */
82 enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle,
83 ClkClientWin, ClkRootWin, ClkLast }; /* clicks */
84
85 typedef union {
86 int i;
87 unsigned int ui;
88 float f;
89 const void *v;
90 } Arg;
91
92 typedef struct {
93 unsigned int click;
94 unsigned int mask;
95 unsigned int button;
96 void (*func)(const Arg *arg);
97 const Arg arg;
98 } Button;
99
100 typedef struct Monitor Monitor;
101 typedef struct Client Client;
102 struct Client {
103 char name[256];
104 float mina, maxa;
105 int x, y, w, h;
106 int oldx, oldy, oldw, oldh;
107 int basew, baseh, incw, inch, maxw, maxh, minw, minh, hintsvalid;
108 int bw, oldbw;
109 unsigned int tags;
110 int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen;
111 Client *next;
112 Client *snext;
113 Monitor *mon;
114 Window win;
115 };
116
117 typedef struct {
118 unsigned int mod;
119 KeySym keysym;
120 void (*func)(const Arg *);
121 const Arg arg;
122 } Key;
123
124 typedef struct {
125 const char *symbol;
126 void (*arrange)(Monitor *);
127 } Layout;
128
129 typedef struct Pertag Pertag;
130 struct 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 Pertag *pertag;
150 };
151
152 typedef struct {
153 const char *class;
154 const char *instance;
155 const char *title;
156 unsigned int tags;
157 int isfloating;
158 int monitor;
159 } Rule;
160
161 typedef struct Systray Systray;
162 struct Systray {
163 Window win;
164 Client *icons;
165 };
166
167 /* function declarations */
168 static void applyrules(Client *c);
169 static int applysizehints(Client *c, int *x, int *y, int *w, int *h, int *bw, int interact);
170 static void arrange(Monitor *m);
171 static void arrangemon(Monitor *m);
172 static void attach(Client *c);
173 static void attachstack(Client *c);
174 static void buttonpress(XEvent *e);
175 static void checkotherwm(void);
176 static void cleanup(void);
177 static void cleanupmon(Monitor *mon);
178 static void clientmessage(XEvent *e);
179 static void col(Monitor *);
180 static void configure(Client *c);
181 static void configurenotify(XEvent *e);
182 static void configurerequest(XEvent *e);
183 static Monitor *createmon(void);
184 static void destroynotify(XEvent *e);
185 static void detach(Client *c);
186 static void detachstack(Client *c);
187 static Monitor *dirtomon(int dir);
188 static void drawbar(Monitor *m);
189 static void drawbars(void);
190 static void enternotify(XEvent *e);
191 static void expose(XEvent *e);
192 static void focus(Client *c);
193 static void focusin(XEvent *e);
194 static void focusmon(const Arg *arg);
195 static void focusstack(const Arg *arg);
196 static Atom getatomprop(Client *c, Atom prop);
197 static int getrootptr(int *x, int *y);
198 static long getstate(Window w);
199 static unsigned int getsystraywidth(void);
200 static int gettextprop(Window w, Atom atom, char *text, unsigned int size);
201 static void grabbuttons(Client *c, int focused);
202 static void grabkeys(void);
203 static void incnmaster(const Arg *arg);
204 static void keypress(XEvent *e);
205 static void killclient(const Arg *arg);
206 static void manage(Window w, XWindowAttributes *wa);
207 static void mappingnotify(XEvent *e);
208 static void maprequest(XEvent *e);
209 static void monocle(Monitor *m);
210 static void motionnotify(XEvent *e);
211 static void movemouse(const Arg *arg);
212 static Client *nexttiled(Client *c);
213 static void pop(Client *c);
214 static void propertynotify(XEvent *e);
215 static void quit(const Arg *arg);
216 static Monitor *recttomon(int x, int y, int w, int h);
217 static void removesystrayicon(Client *i);
218 static void resize(Client *c, int x, int y, int w, int h, int bw, int interact);
219 static void resizebarwin(Monitor *m);
220 static void resizeclient(Client *c, int x, int y, int w, int h, int bw);
221 static void resizemouse(const Arg *arg);
222 static void resizerequest(XEvent *e);
223 static void restack(Monitor *m);
224 static void run(void);
225 static void scan(void);
226 static int sendevent(Window w, Atom proto, int m, long d0, long d1, long d2, long d3, long d4);
227 static void sendmon(Client *c, Monitor *m);
228 static void setclientstate(Client *c, long state);
229 static void setfocus(Client *c);
230 static void setfullscreen(Client *c, int fullscreen);
231 static void setlayout(const Arg *arg);
232 static void setmfact(const Arg *arg);
233 static void setup(void);
234 static void seturgent(Client *c, int urg);
235 static void showhide(Client *c);
236 static void spawn(const Arg *arg);
237 static Monitor *systraytomon(Monitor *m);
238 static void tag(const Arg *arg);
239 static void tagmon(const Arg *arg);
240 static void tile(Monitor *m);
241 static void togglebar(const Arg *arg);
242 static void togglefloating(const Arg *arg);
243 static void togglescratch(const Arg *arg);
244 static void toggletag(const Arg *arg);
245 static void toggleview(const Arg *arg);
246 static void unfocus(Client *c, int setfocus);
247 static void unmanage(Client *c, int destroyed);
248 static void unmapnotify(XEvent *e);
249 static void updatebarpos(Monitor *m);
250 static void updatebars(void);
251 static void updateclientlist(void);
252 static int updategeom(void);
253 static void updatenumlockmask(void);
254 static void updatesizehints(Client *c);
255 static void updatestatus(void);
256 static void updatesystray(void);
257 static void updatesystrayicongeom(Client *i, int w, int h);
258 static void updatesystrayiconstate(Client *i, XPropertyEvent *ev);
259 static void updatetitle(Client *c);
260 static void updatewindowtype(Client *c);
261 static void updatewmhints(Client *c);
262 static void view(const Arg *arg);
263 static void viewtoleft(const Arg *arg);
264 static void viewtoright(const Arg *arg);
265 static Client *wintoclient(Window w);
266 static Monitor *wintomon(Window w);
267 static Client *wintosystrayicon(Window w);
268 static int xerror(Display *dpy, XErrorEvent *ee);
269 static int xerrordummy(Display *dpy, XErrorEvent *ee);
270 static int xerrorstart(Display *dpy, XErrorEvent *ee);
271 static void zoom(const Arg *arg);
272
273 /* variables */
274 static Systray *systray = NULL;
275 static const char broken[] = "broken";
276 static char stext[256];
277 static int screen;
278 static int sw, sh; /* X display screen geometry width, height */
279 static int bh; /* bar height */
280 static int lrpad; /* sum of left and right padding for text */
281 static int (*xerrorxlib)(Display *, XErrorEvent *);
282 static unsigned int numlockmask = 0;
283 static void (*handler[LASTEvent]) (XEvent *) = {
284 [ButtonPress] = buttonpress,
285 [ClientMessage] = clientmessage,
286 [ConfigureRequest] = configurerequest,
287 [ConfigureNotify] = configurenotify,
288 [DestroyNotify] = destroynotify,
289 [EnterNotify] = enternotify,
290 [Expose] = expose,
291 [FocusIn] = focusin,
292 [KeyPress] = keypress,
293 [MappingNotify] = mappingnotify,
294 [MapRequest] = maprequest,
295 [MotionNotify] = motionnotify,
296 [PropertyNotify] = propertynotify,
297 [ResizeRequest] = resizerequest,
298 [UnmapNotify] = unmapnotify
299 };
300 static Atom wmatom[WMLast], netatom[NetLast], xatom[XLast];
301 static int running = 1;
302 static Cur *cursor[CurLast];
303 static Clr **scheme;
304 static Display *dpy;
305 static Drw *drw;
306 static Monitor *mons, *selmon;
307 static Window root, wmcheckwin;
308
309 /* configuration, allows nested code to access above variables */
310 #include "config.h"
311
312 struct Pertag {
313 unsigned int curtag, prevtag; /* current and previous tag */
314 int nmasters[LENGTH(tags) + 1]; /* number of windows in master area */
315 float mfacts[LENGTH(tags) + 1]; /* mfacts per tag */
316 unsigned int sellts[LENGTH(tags) + 1]; /* selected layouts */
317 const Layout *ltidxs[LENGTH(tags) + 1][2]; /* matrix of tags and layouts indexes */
318 int showbars[LENGTH(tags) + 1]; /* display bar for the current tag */
319 };
320
321 static unsigned int scratchtag = 1 << LENGTH(tags);
322
323 /* compile-time check if all tags fit into an unsigned int bit array. */
324 struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; };
325
326 /* function implementations */
327 void
328 applyrules(Client *c)
329 {
330 const char *class, *instance;
331 unsigned int i;
332 const Rule *r;
333 Monitor *m;
334 XClassHint ch = { NULL, NULL };
335
336 /* rule matching */
337 c->isfloating = 0;
338 c->tags = 0;
339 XGetClassHint(dpy, c->win, &ch);
340 class = ch.res_class ? ch.res_class : broken;
341 instance = ch.res_name ? ch.res_name : broken;
342
343 for (i = 0; i < LENGTH(rules); i++) {
344 r = &rules[i];
345 if ((!r->title || strstr(c->name, r->title))
346 && (!r->class || strstr(class, r->class))
347 && (!r->instance || strstr(instance, r->instance)))
348 {
349 c->isfloating = r->isfloating;
350 c->tags |= r->tags;
351 for (m = mons; m && m->num != r->monitor; m = m->next);
352 if (m)
353 c->mon = m;
354 }
355 }
356 if (ch.res_class)
357 XFree(ch.res_class);
358 if (ch.res_name)
359 XFree(ch.res_name);
360 c->tags = c->tags & TAGMASK ? c->tags & TAGMASK : c->mon->tagset[c->mon->seltags];
361 }
362
363 int
364 applysizehints(Client *c, int *x, int *y, int *w, int *h, int *bw, int interact)
365 {
366 int baseismin;
367 Monitor *m = c->mon;
368
369 /* set minimum possible */
370 *w = MAX(1, *w);
371 *h = MAX(1, *h);
372 if (interact) {
373 if (*x > sw)
374 *x = sw - WIDTH(c);
375 if (*y > sh)
376 *y = sh - HEIGHT(c);
377 if (*x + *w + 2 * *bw < 0)
378 *x = 0;
379 if (*y + *h + 2 * *bw < 0)
380 *y = 0;
381 } else {
382 if (*x >= m->wx + m->ww)
383 *x = m->wx + m->ww - WIDTH(c);
384 if (*y >= m->wy + m->wh)
385 *y = m->wy + m->wh - HEIGHT(c);
386 if (*x + *w + 2 * *bw <= m->wx)
387 *x = m->wx;
388 if (*y + *h + 2 * *bw <= m->wy)
389 *y = m->wy;
390 }
391 if (*h < bh)
392 *h = bh;
393 if (*w < bh)
394 *w = bh;
395 if (resizehints || c->isfloating || !c->mon->lt[c->mon->sellt]->arrange) {
396 if (!c->hintsvalid)
397 updatesizehints(c);
398 /* see last two sentences in ICCCM 4.1.2.3 */
399 baseismin = c->basew == c->minw && c->baseh == c->minh;
400 if (!baseismin) { /* temporarily remove base dimensions */
401 *w -= c->basew;
402 *h -= c->baseh;
403 }
404 /* adjust for aspect limits */
405 if (c->mina > 0 && c->maxa > 0) {
406 if (c->maxa < (float)*w / *h)
407 *w = *h * c->maxa + 0.5;
408 else if (c->mina < (float)*h / *w)
409 *h = *w * c->mina + 0.5;
410 }
411 if (baseismin) { /* increment calculation requires this */
412 *w -= c->basew;
413 *h -= c->baseh;
414 }
415 /* adjust for increment value */
416 if (c->incw)
417 *w -= *w % c->incw;
418 if (c->inch)
419 *h -= *h % c->inch;
420 /* restore base dimensions */
421 *w = MAX(*w + c->basew, c->minw);
422 *h = MAX(*h + c->baseh, c->minh);
423 if (c->maxw)
424 *w = MIN(*w, c->maxw);
425 if (c->maxh)
426 *h = MIN(*h, c->maxh);
427 }
428 return *x != c->x || *y != c->y || *w != c->w || *h != c->h || *bw != c->bw;
429 }
430
431 void
432 arrange(Monitor *m)
433 {
434 if (m)
435 showhide(m->stack);
436 else for (m = mons; m; m = m->next)
437 showhide(m->stack);
438 if (m) {
439 arrangemon(m);
440 restack(m);
441 } else for (m = mons; m; m = m->next)
442 arrangemon(m);
443 }
444
445 void
446 arrangemon(Monitor *m)
447 {
448 Client *c;
449
450 strncpy(m->ltsymbol, m->lt[m->sellt]->symbol, sizeof m->ltsymbol);
451 if (m->lt[m->sellt]->arrange)
452 m->lt[m->sellt]->arrange(m);
453 else
454 /* <>< case; rather than providing an arrange function and upsetting
455 * other logic that tests for its presence, simply add borders here */
456 for (c = selmon->clients; c; c = c->next)
457 if (ISVISIBLE(c) && c->bw == 0)
458 resize(c, c->x, c->y, c->w - 2*borderpx, c->h - 2*borderpx, borderpx, 0);
459 }
460
461 void
462 attach(Client *c)
463 {
464 c->next = c->mon->clients;
465 c->mon->clients = c;
466 }
467
468 void
469 attachabove(Client *c)
470 {
471 if (c->mon->sel == NULL || c->mon->sel == c->mon->clients || c->mon->sel->isfloating) {
472 attach(c);
473 return;
474 }
475
476 Client *at;
477 for (at = c->mon->clients; at->next != c->mon->sel; at = at->next);
478 c->next = at->next;
479 at->next = c;
480 }
481
482 void
483 attachstack(Client *c)
484 {
485 c->snext = c->mon->stack;
486 c->mon->stack = c;
487 }
488
489 void
490 buttonpress(XEvent *e)
491 {
492 unsigned int i, x, click;
493 Arg arg = {0};
494 Client *c;
495 Monitor *m;
496 XButtonPressedEvent *ev = &e->xbutton;
497
498 click = ClkRootWin;
499 /* focus monitor if necessary */
500 if ((m = wintomon(ev->window)) && m != selmon) {
501 unfocus(selmon->sel, 1);
502 selmon = m;
503 focus(NULL);
504 }
505 if (ev->window == selmon->barwin) {
506 i = x = 0;
507 do
508 x += TEXTW(tags[i]);
509 while (ev->x >= x && ++i < LENGTH(tags));
510 if (i < LENGTH(tags)) {
511 click = ClkTagBar;
512 arg.ui = 1 << i;
513 } else if (ev->x < x + TEXTW(selmon->ltsymbol))
514 click = ClkLtSymbol;
515 else if (ev->x > selmon->ww - (int)TEXTW(stext) - getsystraywidth())
516 click = ClkStatusText;
517 else
518 click = ClkWinTitle;
519 } else if ((c = wintoclient(ev->window))) {
520 focus(c);
521 restack(selmon);
522 XAllowEvents(dpy, ReplayPointer, CurrentTime);
523 click = ClkClientWin;
524 }
525 for (i = 0; i < LENGTH(buttons); i++)
526 if (click == buttons[i].click && buttons[i].func && buttons[i].button == ev->button
527 && CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
528 buttons[i].func(click == ClkTagBar && buttons[i].arg.i == 0 ? &arg : &buttons[i].arg);
529 }
530
531 void
532 checkotherwm(void)
533 {
534 xerrorxlib = XSetErrorHandler(xerrorstart);
535 /* this causes an error if some other window manager is running */
536 XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask);
537 XSync(dpy, False);
538 XSetErrorHandler(xerror);
539 XSync(dpy, False);
540 }
541
542 void
543 cleanup(void)
544 {
545 Arg a = {.ui = ~0};
546 Layout foo = { "", NULL };
547 Monitor *m;
548 size_t i;
549
550 view(&a);
551 selmon->lt[selmon->sellt] = &foo;
552 for (m = mons; m; m = m->next)
553 while (m->stack)
554 unmanage(m->stack, 0);
555 XUngrabKey(dpy, AnyKey, AnyModifier, root);
556 while (mons)
557 cleanupmon(mons);
558
559 if (showsystray) {
560 XUnmapWindow(dpy, systray->win);
561 XDestroyWindow(dpy, systray->win);
562 free(systray);
563 }
564
565 for (i = 0; i < CurLast; i++)
566 drw_cur_free(drw, cursor[i]);
567 for (i = 0; i < LENGTH(colors); i++)
568 free(scheme[i]);
569 free(scheme);
570 XDestroyWindow(dpy, wmcheckwin);
571 drw_free(drw);
572 XSync(dpy, False);
573 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
574 XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
575 }
576
577 void
578 cleanupmon(Monitor *mon)
579 {
580 Monitor *m;
581
582 if (mon == mons)
583 mons = mons->next;
584 else {
585 for (m = mons; m && m->next != mon; m = m->next);
586 m->next = mon->next;
587 }
588 XUnmapWindow(dpy, mon->barwin);
589 XDestroyWindow(dpy, mon->barwin);
590 free(mon);
591 }
592
593 void
594 clientmessage(XEvent *e)
595 {
596 XWindowAttributes wa;
597 XSetWindowAttributes swa;
598 XClientMessageEvent *cme = &e->xclient;
599 Client *c = wintoclient(cme->window);
600
601 if (showsystray && cme->window == systray->win && cme->message_type == netatom[NetSystemTrayOP]) {
602 /* add systray icons */
603 if (cme->data.l[1] == SYSTEM_TRAY_REQUEST_DOCK) {
604 if (!(c = (Client *)calloc(1, sizeof(Client))))
605 die("fatal: could not malloc() %u bytes\n", sizeof(Client));
606 if (!(c->win = cme->data.l[2])) {
607 free(c);
608 return;
609 }
610 c->mon = selmon;
611 c->next = systray->icons;
612 systray->icons = c;
613 if (!XGetWindowAttributes(dpy, c->win, &wa)) {
614 /* use sane defaults */
615 wa.width = bh;
616 wa.height = bh;
617 wa.border_width = 0;
618 }
619 c->x = c->oldx = c->y = c->oldy = 0;
620 c->w = c->oldw = wa.width;
621 c->h = c->oldh = wa.height;
622 c->oldbw = wa.border_width;
623 c->bw = 0;
624 c->isfloating = True;
625 /* reuse tags field as mapped status */
626 c->tags = 1;
627 updatesizehints(c);
628 updatesystrayicongeom(c, wa.width, wa.height);
629 XAddToSaveSet(dpy, c->win);
630 XSelectInput(dpy, c->win, StructureNotifyMask | PropertyChangeMask | ResizeRedirectMask);
631 XReparentWindow(dpy, c->win, systray->win, 0, 0);
632 /* use parents background color */
633 swa.background_pixel = scheme[SchemeNorm][ColBg].pixel;
634 XChangeWindowAttributes(dpy, c->win, CWBackPixel, &swa);
635 sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_EMBEDDED_NOTIFY, 0 , systray->win, XEMBED_EMBEDDED_VERSION);
636 /* FIXME not sure if I have to send these events, too */
637 sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_FOCUS_IN, 0 , systray->win, XEMBED_EMBEDDED_VERSION);
638 sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_WINDOW_ACTIVATE, 0 , systray->win, XEMBED_EMBEDDED_VERSION);
639 sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_MODALITY_ON, 0 , systray->win, XEMBED_EMBEDDED_VERSION);
640 XSync(dpy, False);
641 resizebarwin(selmon);
642 updatesystray();
643 setclientstate(c, NormalState);
644 }
645 return;
646 }
647
648 if (!c)
649 return;
650 if (cme->message_type == netatom[NetWMState]) {
651 if (cme->data.l[1] == netatom[NetWMFullscreen]
652 || cme->data.l[2] == netatom[NetWMFullscreen])
653 setfullscreen(c, (cme->data.l[0] == 1 /* _NET_WM_STATE_ADD */
654 || (cme->data.l[0] == 2 /* _NET_WM_STATE_TOGGLE */ && !c->isfullscreen)));
655 } else if (cme->message_type == netatom[NetActiveWindow]) {
656 if (c != selmon->sel && !c->isurgent)
657 seturgent(c, 1);
658 }
659 }
660
661 void
662 configure(Client *c)
663 {
664 XConfigureEvent ce;
665
666 ce.type = ConfigureNotify;
667 ce.display = dpy;
668 ce.event = c->win;
669 ce.window = c->win;
670 ce.x = c->x;
671 ce.y = c->y;
672 ce.width = c->w;
673 ce.height = c->h;
674 ce.border_width = c->bw;
675 ce.above = None;
676 ce.override_redirect = False;
677 XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce);
678 }
679
680 void
681 configurenotify(XEvent *e)
682 {
683 Monitor *m;
684 Client *c;
685 XConfigureEvent *ev = &e->xconfigure;
686 int dirty;
687
688 /* TODO: updategeom handling sucks, needs to be simplified */
689 if (ev->window == root) {
690 dirty = (sw != ev->width || sh != ev->height);
691 sw = ev->width;
692 sh = ev->height;
693 if (updategeom() || dirty) {
694 drw_resize(drw, sw, bh);
695 updatebars();
696 for (m = mons; m; m = m->next) {
697 for (c = m->clients; c; c = c->next)
698 if (c->isfullscreen)
699 resizeclient(c, m->mx, m->my, m->mw, m->mh, 0);
700 resizebarwin(m);
701 }
702 focus(NULL);
703 arrange(NULL);
704 }
705 }
706 }
707
708 void
709 configurerequest(XEvent *e)
710 {
711 Client *c;
712 Monitor *m;
713 XConfigureRequestEvent *ev = &e->xconfigurerequest;
714 XWindowChanges wc;
715
716 if ((c = wintoclient(ev->window))) {
717 if (ev->value_mask & CWBorderWidth)
718 c->bw = ev->border_width;
719 else if (c->isfloating || !selmon->lt[selmon->sellt]->arrange) {
720 m = c->mon;
721 if (ev->value_mask & CWX) {
722 c->oldx = c->x;
723 c->x = m->mx + ev->x;
724 }
725 if (ev->value_mask & CWY) {
726 c->oldy = c->y;
727 c->y = m->my + ev->y;
728 }
729 if (ev->value_mask & CWWidth) {
730 c->oldw = c->w;
731 c->w = ev->width;
732 }
733 if (ev->value_mask & CWHeight) {
734 c->oldh = c->h;
735 c->h = ev->height;
736 }
737 if ((c->x + c->w) > m->mx + m->mw && c->isfloating)
738 c->x = m->mx + (m->mw / 2 - WIDTH(c) / 2); /* center in x direction */
739 if ((c->y + c->h) > m->my + m->mh && c->isfloating)
740 c->y = m->my + (m->mh / 2 - HEIGHT(c) / 2); /* center in y direction */
741 if ((ev->value_mask & (CWX|CWY)) && !(ev->value_mask & (CWWidth|CWHeight)))
742 configure(c);
743 if (ISVISIBLE(c))
744 XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
745 } else
746 configure(c);
747 } else {
748 wc.x = ev->x;
749 wc.y = ev->y;
750 wc.width = ev->width;
751 wc.height = ev->height;
752 wc.border_width = ev->border_width;
753 wc.sibling = ev->above;
754 wc.stack_mode = ev->detail;
755 XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
756 }
757 XSync(dpy, False);
758 }
759
760 Monitor *
761 createmon(void)
762 {
763 Monitor *m;
764 unsigned int i;
765
766 m = ecalloc(1, sizeof(Monitor));
767 m->tagset[0] = m->tagset[1] = 1;
768 m->mfact = mfact;
769 m->nmaster = nmaster;
770 m->showbar = showbar;
771 m->topbar = topbar;
772 m->lt[0] = &layouts[0];
773 m->lt[1] = &layouts[1 % LENGTH(layouts)];
774 strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol);
775 m->pertag = ecalloc(1, sizeof(Pertag));
776 m->pertag->curtag = m->pertag->prevtag = 1;
777
778 for (i = 0; i <= LENGTH(tags); i++) {
779 m->pertag->nmasters[i] = m->nmaster;
780 m->pertag->mfacts[i] = m->mfact;
781
782 m->pertag->ltidxs[i][0] = m->lt[0];
783 m->pertag->ltidxs[i][1] = m->lt[1];
784 m->pertag->sellts[i] = m->sellt;
785
786 m->pertag->showbars[i] = m->showbar;
787 }
788
789 return m;
790 }
791
792 void
793 destroynotify(XEvent *e)
794 {
795 Client *c;
796 XDestroyWindowEvent *ev = &e->xdestroywindow;
797
798 if ((c = wintoclient(ev->window)))
799 unmanage(c, 1);
800 else if ((c = wintosystrayicon(ev->window))) {
801 removesystrayicon(c);
802 resizebarwin(selmon);
803 updatesystray();
804 }
805 }
806
807 void
808 detach(Client *c)
809 {
810 Client **tc;
811
812 for (tc = &c->mon->clients; *tc && *tc != c; tc = &(*tc)->next);
813 *tc = c->next;
814 }
815
816 void
817 detachstack(Client *c)
818 {
819 Client **tc, *t;
820
821 for (tc = &c->mon->stack; *tc && *tc != c; tc = &(*tc)->snext);
822 *tc = c->snext;
823
824 if (c == c->mon->sel) {
825 for (t = c->mon->stack; t && !ISVISIBLE(t); t = t->snext);
826 c->mon->sel = t;
827 }
828 }
829
830 Monitor *
831 dirtomon(int dir)
832 {
833 Monitor *m = NULL;
834
835 if (dir > 0) {
836 if (!(m = selmon->next))
837 m = mons;
838 } else if (selmon == mons)
839 for (m = mons; m->next; m = m->next);
840 else
841 for (m = mons; m->next != selmon; m = m->next);
842 return m;
843 }
844
845 void
846 drawbar(Monitor *m)
847 {
848 int x, w, tw = 0, stw = 0;
849 int boxs = drw->fonts->h / 9;
850 int boxw = drw->fonts->h / 6 + 2;
851 unsigned int i, occ = 0, urg = 0;
852 Client *c;
853
854 if (!m->showbar)
855 return;
856
857 if(showsystray && m == systraytomon(m) && !systrayonleft)
858 stw = getsystraywidth();
859
860 /* draw status first so it can be overdrawn by tags later */
861 if (m == selmon) { /* status is only drawn on selected monitor */
862 drw_setscheme(drw, scheme[SchemeNorm]);
863 tw = TEXTW(stext) - lrpad / 2 + 2; /* 2px extra right padding */
864 drw_text(drw, m->ww - tw - stw, 0, tw, bh, lrpad / 2 - 2, stext, 0);
865 }
866
867 resizebarwin(m);
868 for (c = m->clients; c; c = c->next) {
869 occ |= c->tags;
870 if (c->isurgent)
871 urg |= c->tags;
872 }
873 x = 0;
874 for (i = 0; i < LENGTH(tags); i++) {
875 w = TEXTW(tags[i]);
876 drw_setscheme(drw, scheme[m->tagset[m->seltags] & 1 << i ? SchemeSel : SchemeNorm]);
877 drw_text(drw, x, 0, w, bh, lrpad / 2, tags[i], urg & 1 << i);
878 if (occ & 1 << i)
879 drw_rect(drw, x + boxs, boxs, boxw, boxw,
880 m == selmon && selmon->sel && selmon->sel->tags & 1 << i,
881 urg & 1 << i);
882 x += w;
883 }
884 w = TEXTW(m->ltsymbol);
885 drw_setscheme(drw, scheme[SchemeNorm]);
886 x = drw_text(drw, x, 0, w, bh, lrpad / 2, m->ltsymbol, 0);
887
888 if ((w = m->ww - tw - stw - x) > bh) {
889 if (m->sel) {
890 drw_setscheme(drw, scheme[m == selmon ? SchemeSel : SchemeNorm]);
891 drw_text(drw, x, 0, w, bh, lrpad / 2, m->sel->name, 0);
892 if (m->sel->isfloating)
893 drw_rect(drw, x + boxs, boxs, boxw, boxw, m->sel->isfixed, 0);
894 } else {
895 drw_setscheme(drw, scheme[SchemeNorm]);
896 drw_rect(drw, x, 0, w, bh, 1, 1);
897 }
898 }
899 drw_map(drw, m->barwin, 0, 0, m->ww - stw, bh);
900 }
901
902 void
903 drawbars(void)
904 {
905 Monitor *m;
906
907 for (m = mons; m; m = m->next)
908 drawbar(m);
909 }
910
911 void
912 enternotify(XEvent *e)
913 {
914 Client *c;
915 Monitor *m;
916 XCrossingEvent *ev = &e->xcrossing;
917
918 if ((ev->mode != NotifyNormal || ev->detail == NotifyInferior) && ev->window != root)
919 return;
920 c = wintoclient(ev->window);
921 m = c ? c->mon : wintomon(ev->window);
922 if (m != selmon) {
923 unfocus(selmon->sel, 1);
924 selmon = m;
925 } else if (!c || c == selmon->sel)
926 return;
927 focus(c);
928 }
929
930 void
931 expose(XEvent *e)
932 {
933 Monitor *m;
934 XExposeEvent *ev = &e->xexpose;
935
936 if (ev->count == 0 && (m = wintomon(ev->window))) {
937 drawbar(m);
938 if (m == selmon)
939 updatesystray();
940 }
941 }
942
943 void
944 focus(Client *c)
945 {
946 if (!c || !ISVISIBLE(c))
947 for (c = selmon->stack; c && !ISVISIBLE(c); c = c->snext);
948 if (selmon->sel && selmon->sel != c)
949 unfocus(selmon->sel, 0);
950 if (c) {
951 if (c->mon != selmon)
952 selmon = c->mon;
953 if (c->isurgent)
954 seturgent(c, 0);
955 detachstack(c);
956 attachstack(c);
957 grabbuttons(c, 1);
958 XSetWindowBorder(dpy, c->win, scheme[SchemeSel][ColBorder].pixel);
959 setfocus(c);
960 } else {
961 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
962 XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
963 }
964 selmon->sel = c;
965 drawbars();
966 }
967
968 /* there are some broken focus acquiring clients needing extra handling */
969 void
970 focusin(XEvent *e)
971 {
972 XFocusChangeEvent *ev = &e->xfocus;
973
974 if (selmon->sel && ev->window != selmon->sel->win)
975 setfocus(selmon->sel);
976 }
977
978 void
979 focusmon(const Arg *arg)
980 {
981 Monitor *m;
982
983 if (!mons->next)
984 return;
985 if ((m = dirtomon(arg->i)) == selmon)
986 return;
987 unfocus(selmon->sel, 0);
988 selmon = m;
989 focus(NULL);
990 }
991
992 void
993 focusstack(const Arg *arg)
994 {
995 Client *c = NULL, *i;
996
997 if (!selmon->sel || (selmon->sel->isfullscreen && lockfullscreen))
998 return;
999 if (arg->i > 0) {
1000 for (c = selmon->sel->next; c && !ISVISIBLE(c); c = c->next);
1001 if (!c)
1002 for (c = selmon->clients; c && !ISVISIBLE(c); c = c->next);
1003 } else {
1004 for (i = selmon->clients; i != selmon->sel; i = i->next)
1005 if (ISVISIBLE(i))
1006 c = i;
1007 if (!c)
1008 for (; i; i = i->next)
1009 if (ISVISIBLE(i))
1010 c = i;
1011 }
1012 if (c) {
1013 focus(c);
1014 restack(selmon);
1015 }
1016 }
1017
1018 Atom
1019 getatomprop(Client *c, Atom prop)
1020 {
1021 int di;
1022 unsigned long dl;
1023 unsigned char *p = NULL;
1024 Atom da, atom = None;
1025
1026 /* FIXME getatomprop should return the number of items and a pointer to
1027 * the stored data instead of this workaround */
1028 Atom req = XA_ATOM;
1029 if (prop == xatom[XembedInfo])
1030 req = xatom[XembedInfo];
1031
1032 if (XGetWindowProperty(dpy, c->win, prop, 0L, sizeof atom, False, req,
1033 &da, &di, &dl, &dl, &p) == Success && p) {
1034 atom = *(Atom *)p;
1035 if (da == xatom[XembedInfo] && dl == 2)
1036 atom = ((Atom *)p)[1];
1037 XFree(p);
1038 }
1039 return atom;
1040 }
1041
1042 int
1043 getrootptr(int *x, int *y)
1044 {
1045 int di;
1046 unsigned int dui;
1047 Window dummy;
1048
1049 return XQueryPointer(dpy, root, &dummy, &dummy, x, y, &di, &di, &dui);
1050 }
1051
1052 long
1053 getstate(Window w)
1054 {
1055 int format;
1056 long result = -1;
1057 unsigned char *p = NULL;
1058 unsigned long n, extra;
1059 Atom real;
1060
1061 if (XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState],
1062 &real, &format, &n, &extra, (unsigned char **)&p) != Success)
1063 return -1;
1064 if (n != 0)
1065 result = *p;
1066 XFree(p);
1067 return result;
1068 }
1069
1070 unsigned int
1071 getsystraywidth(void)
1072 {
1073 unsigned int w = 0;
1074 Client *i;
1075 if(showsystray)
1076 for(i = systray->icons; i; w += i->w + systrayspacing, i = i->next) ;
1077 return w ? w + systrayspacing : 1;
1078 }
1079
1080 int
1081 gettextprop(Window w, Atom atom, char *text, unsigned int size)
1082 {
1083 char **list = NULL;
1084 int n;
1085 XTextProperty name;
1086
1087 if (!text || size == 0)
1088 return 0;
1089 text[0] = '\0';
1090 if (!XGetTextProperty(dpy, w, &name, atom) || !name.nitems)
1091 return 0;
1092 if (name.encoding == XA_STRING) {
1093 strncpy(text, (char *)name.value, size - 1);
1094 } else if (XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success && n > 0 && *list) {
1095 strncpy(text, *list, size - 1);
1096 XFreeStringList(list);
1097 }
1098 text[size - 1] = '\0';
1099 XFree(name.value);
1100 return 1;
1101 }
1102
1103 void
1104 grabbuttons(Client *c, int focused)
1105 {
1106 updatenumlockmask();
1107 {
1108 unsigned int i, j;
1109 unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
1110 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
1111 if (!focused)
1112 XGrabButton(dpy, AnyButton, AnyModifier, c->win, False,
1113 BUTTONMASK, GrabModeSync, GrabModeSync, None, None);
1114 for (i = 0; i < LENGTH(buttons); i++)
1115 if (buttons[i].click == ClkClientWin)
1116 for (j = 0; j < LENGTH(modifiers); j++)
1117 XGrabButton(dpy, buttons[i].button,
1118 buttons[i].mask | modifiers[j],
1119 c->win, False, BUTTONMASK,
1120 GrabModeAsync, GrabModeSync, None, None);
1121 }
1122 }
1123
1124 void
1125 grabkeys(void)
1126 {
1127 updatenumlockmask();
1128 {
1129 unsigned int i, j, k;
1130 unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
1131 int start, end, skip;
1132 KeySym *syms;
1133
1134 XUngrabKey(dpy, AnyKey, AnyModifier, root);
1135 XDisplayKeycodes(dpy, &start, &end);
1136 syms = XGetKeyboardMapping(dpy, start, end - start + 1, &skip);
1137 if (!syms)
1138 return;
1139 for (k = start; k <= end; k++)
1140 for (i = 0; i < LENGTH(keys); i++)
1141 /* skip modifier codes, we do that ourselves */
1142 if (keys[i].keysym == syms[(k - start) * skip])
1143 for (j = 0; j < LENGTH(modifiers); j++)
1144 XGrabKey(dpy, k,
1145 keys[i].mod | modifiers[j],
1146 root, True,
1147 GrabModeAsync, GrabModeAsync);
1148 XFree(syms);
1149 }
1150 }
1151
1152 void
1153 incnmaster(const Arg *arg)
1154 {
1155 selmon->nmaster = selmon->pertag->nmasters[selmon->pertag->curtag] = MAX(selmon->nmaster + arg->i, 0);
1156 arrange(selmon);
1157 }
1158
1159 #ifdef XINERAMA
1160 static int
1161 isuniquegeom(XineramaScreenInfo *unique, size_t n, XineramaScreenInfo *info)
1162 {
1163 while (n--)
1164 if (unique[n].x_org == info->x_org && unique[n].y_org == info->y_org
1165 && unique[n].width == info->width && unique[n].height == info->height)
1166 return 0;
1167 return 1;
1168 }
1169 #endif /* XINERAMA */
1170
1171 void
1172 keypress(XEvent *e)
1173 {
1174 unsigned int i;
1175 KeySym keysym;
1176 XKeyEvent *ev;
1177
1178 ev = &e->xkey;
1179 keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
1180 for (i = 0; i < LENGTH(keys); i++)
1181 if (keysym == keys[i].keysym
1182 && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
1183 && keys[i].func)
1184 keys[i].func(&(keys[i].arg));
1185 }
1186
1187 void
1188 killclient(const Arg *arg)
1189 {
1190 if (!selmon->sel)
1191 return;
1192
1193 if (!sendevent(selmon->sel->win, wmatom[WMDelete], NoEventMask, wmatom[WMDelete], CurrentTime, 0 , 0, 0)) {
1194 XGrabServer(dpy);
1195 XSetErrorHandler(xerrordummy);
1196 XSetCloseDownMode(dpy, DestroyAll);
1197 XKillClient(dpy, selmon->sel->win);
1198 XSync(dpy, False);
1199 XSetErrorHandler(xerror);
1200 XUngrabServer(dpy);
1201 }
1202 }
1203
1204 void
1205 manage(Window w, XWindowAttributes *wa)
1206 {
1207 Client *c, *t = NULL;
1208 Window trans = None;
1209 XWindowChanges wc;
1210
1211 c = ecalloc(1, sizeof(Client));
1212 c->win = w;
1213 /* geometry */
1214 c->x = c->oldx = wa->x;
1215 c->y = c->oldy = wa->y;
1216 c->w = c->oldw = wa->width;
1217 c->h = c->oldh = wa->height;
1218 c->oldbw = wa->border_width;
1219
1220 updatetitle(c);
1221 if (XGetTransientForHint(dpy, w, &trans) && (t = wintoclient(trans))) {
1222 c->mon = t->mon;
1223 c->tags = t->tags;
1224 } else {
1225 c->mon = selmon;
1226 applyrules(c);
1227 }
1228
1229 if (c->x + WIDTH(c) > c->mon->wx + c->mon->ww)
1230 c->x = c->mon->wx + c->mon->ww - WIDTH(c);
1231 if (c->y + HEIGHT(c) > c->mon->wy + c->mon->wh)
1232 c->y = c->mon->wy + c->mon->wh - HEIGHT(c);
1233 c->x = MAX(c->x, c->mon->wx);
1234 c->y = MAX(c->y, c->mon->wy);
1235 c->bw = borderpx;
1236
1237 selmon->tagset[selmon->seltags] &= ~scratchtag;
1238 if (!strcmp(c->name, scratchpadname)) {
1239 c->mon->tagset[c->mon->seltags] |= c->tags = scratchtag;
1240 c->isfloating = True;
1241 c->x = c->mon->wx + (c->mon->ww / 2 - WIDTH(c) / 2);
1242 c->y = c->mon->wy + (c->mon->wh / 2 - HEIGHT(c) / 2);
1243 }
1244
1245 wc.border_width = c->bw;
1246 XConfigureWindow(dpy, w, CWBorderWidth, &wc);
1247 XSetWindowBorder(dpy, w, scheme[SchemeNorm][ColBorder].pixel);
1248 configure(c); /* propagates border_width, if size doesn't change */
1249 updatewindowtype(c);
1250 updatesizehints(c);
1251 updatewmhints(c);
1252 XSelectInput(dpy, w, EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask);
1253 grabbuttons(c, 0);
1254 if (!c->isfloating)
1255 c->isfloating = c->oldstate = trans != None || c->isfixed;
1256 if (c->isfloating)
1257 XRaiseWindow(dpy, c->win);
1258 attachabove(c);
1259 attachstack(c);
1260 XChangeProperty(dpy, root, netatom[NetClientList], XA_WINDOW, 32, PropModeAppend,
1261 (unsigned char *) &(c->win), 1);
1262 XMoveResizeWindow(dpy, c->win, c->x + 2 * sw, c->y, c->w, c->h); /* some windows require this */
1263 setclientstate(c, NormalState);
1264 if (c->mon == selmon)
1265 unfocus(selmon->sel, 0);
1266 c->mon->sel = c;
1267 arrange(c->mon);
1268 XMapWindow(dpy, c->win);
1269 focus(NULL);
1270 }
1271
1272 void
1273 mappingnotify(XEvent *e)
1274 {
1275 XMappingEvent *ev = &e->xmapping;
1276
1277 XRefreshKeyboardMapping(ev);
1278 if (ev->request == MappingKeyboard)
1279 grabkeys();
1280 }
1281
1282 void
1283 maprequest(XEvent *e)
1284 {
1285 static XWindowAttributes wa;
1286 XMapRequestEvent *ev = &e->xmaprequest;
1287
1288 Client *i;
1289 if ((i = wintosystrayicon(ev->window))) {
1290 sendevent(i->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_WINDOW_ACTIVATE, 0, systray->win, XEMBED_EMBEDDED_VERSION);
1291 resizebarwin(selmon);
1292 updatesystray();
1293 }
1294
1295 if (!XGetWindowAttributes(dpy, ev->window, &wa) || wa.override_redirect)
1296 return;
1297
1298 if (!wintoclient(ev->window))
1299 manage(ev->window, &wa);
1300 }
1301
1302 void
1303 monocle(Monitor *m)
1304 {
1305 unsigned int n = 0;
1306 Client *c;
1307
1308 for (c = m->clients; c; c = c->next)
1309 if (ISVISIBLE(c))
1310 n++;
1311 if (n > 0) /* override layout symbol */
1312 snprintf(m->ltsymbol, sizeof m->ltsymbol, "[%d]", n);
1313 for (c = nexttiled(m->clients); c; c = nexttiled(c->next))
1314 resize(c, m->wx, m->wy, m->ww, m->wh, 0, 0);
1315 }
1316
1317 void
1318 motionnotify(XEvent *e)
1319 {
1320 static Monitor *mon = NULL;
1321 Monitor *m;
1322 XMotionEvent *ev = &e->xmotion;
1323
1324 if (ev->window != root)
1325 return;
1326 if ((m = recttomon(ev->x_root, ev->y_root, 1, 1)) != mon && mon) {
1327 unfocus(selmon->sel, 1);
1328 selmon = m;
1329 focus(NULL);
1330 }
1331 mon = m;
1332 }
1333
1334 void
1335 movemouse(const Arg *arg)
1336 {
1337 int x, y, ocx, ocy, nx, ny;
1338 Client *c;
1339 Monitor *m;
1340 XEvent ev;
1341 Time lasttime = 0;
1342
1343 if (!(c = selmon->sel))
1344 return;
1345 if (c->isfullscreen) /* no support moving fullscreen windows by mouse */
1346 return;
1347 restack(selmon);
1348 ocx = c->x;
1349 ocy = c->y;
1350 if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
1351 None, cursor[CurMove]->cursor, CurrentTime) != GrabSuccess)
1352 return;
1353 if (!getrootptr(&x, &y))
1354 return;
1355 do {
1356 XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
1357 switch(ev.type) {
1358 case ConfigureRequest:
1359 case Expose:
1360 case MapRequest:
1361 handler[ev.type](&ev);
1362 break;
1363 case MotionNotify:
1364 if ((ev.xmotion.time - lasttime) <= (1000 / 60))
1365 continue;
1366 lasttime = ev.xmotion.time;
1367
1368 nx = ocx + (ev.xmotion.x - x);
1369 ny = ocy + (ev.xmotion.y - y);
1370 if (abs(selmon->wx - nx) < snap)
1371 nx = selmon->wx;
1372 else if (abs((selmon->wx + selmon->ww) - (nx + WIDTH(c))) < snap)
1373 nx = selmon->wx + selmon->ww - WIDTH(c);
1374 if (abs(selmon->wy - ny) < snap)
1375 ny = selmon->wy;
1376 else if (abs((selmon->wy + selmon->wh) - (ny + HEIGHT(c))) < snap)
1377 ny = selmon->wy + selmon->wh - HEIGHT(c);
1378 if (!c->isfloating && selmon->lt[selmon->sellt]->arrange
1379 && (abs(nx - c->x) > snap || abs(ny - c->y) > snap))
1380 togglefloating(NULL);
1381 if (!selmon->lt[selmon->sellt]->arrange || c->isfloating)
1382 resize(c, nx, ny, c->w, c->h, c->bw, 1);
1383 break;
1384 }
1385 } while (ev.type != ButtonRelease);
1386 XUngrabPointer(dpy, CurrentTime);
1387 if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) {
1388 sendmon(c, m);
1389 selmon = m;
1390 focus(NULL);
1391 }
1392 }
1393
1394 Client *
1395 nexttiled(Client *c)
1396 {
1397 for (; c && (c->isfloating || !ISVISIBLE(c)); c = c->next);
1398 return c;
1399 }
1400
1401 void
1402 pop(Client *c)
1403 {
1404 detach(c);
1405 attach(c);
1406 focus(c);
1407 arrange(c->mon);
1408 }
1409
1410 void
1411 propertynotify(XEvent *e)
1412 {
1413 Client *c;
1414 Window trans;
1415 XPropertyEvent *ev = &e->xproperty;
1416
1417 if ((c = wintosystrayicon(ev->window))) {
1418 if (ev->atom == XA_WM_NORMAL_HINTS) {
1419 updatesizehints(c);
1420 updatesystrayicongeom(c, c->w, c->h);
1421 }
1422 else
1423 updatesystrayiconstate(c, ev);
1424 resizebarwin(selmon);
1425 updatesystray();
1426 }
1427
1428 if ((ev->window == root) && (ev->atom == XA_WM_NAME))
1429 updatestatus();
1430 else if (ev->state == PropertyDelete)
1431 return; /* ignore */
1432 else if ((c = wintoclient(ev->window))) {
1433 switch(ev->atom) {
1434 default: break;
1435 case XA_WM_TRANSIENT_FOR:
1436 if (!c->isfloating && (XGetTransientForHint(dpy, c->win, &trans)) &&
1437 (c->isfloating = (wintoclient(trans)) != NULL))
1438 arrange(c->mon);
1439 break;
1440 case XA_WM_NORMAL_HINTS:
1441 c->hintsvalid = 0;
1442 break;
1443 case XA_WM_HINTS:
1444 updatewmhints(c);
1445 drawbars();
1446 break;
1447 }
1448 if (ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
1449 updatetitle(c);
1450 if (c == c->mon->sel)
1451 drawbar(c->mon);
1452 }
1453 if (ev->atom == netatom[NetWMWindowType])
1454 updatewindowtype(c);
1455 }
1456 }
1457
1458 void
1459 quit(const Arg *arg)
1460 {
1461 running = 0;
1462 }
1463
1464 Monitor *
1465 recttomon(int x, int y, int w, int h)
1466 {
1467 Monitor *m, *r = selmon;
1468 int a, area = 0;
1469
1470 for (m = mons; m; m = m->next)
1471 if ((a = INTERSECT(x, y, w, h, m)) > area) {
1472 area = a;
1473 r = m;
1474 }
1475 return r;
1476 }
1477
1478 void
1479 removesystrayicon(Client *i)
1480 {
1481 Client **ii;
1482
1483 if (!showsystray || !i)
1484 return;
1485 for (ii = &systray->icons; *ii && *ii != i; ii = &(*ii)->next);
1486 if (ii)
1487 *ii = i->next;
1488 free(i);
1489 }
1490
1491 void
1492 resize(Client *c, int x, int y, int w, int h, int bw, int interact)
1493 {
1494 if (applysizehints(c, &x, &y, &w, &h, &bw, interact))
1495 resizeclient(c, x, y, w, h, bw);
1496 }
1497
1498 void
1499 resizebarwin(Monitor *m) {
1500 unsigned int w = m->ww;
1501 if (showsystray && m == systraytomon(m) && !systrayonleft)
1502 w -= getsystraywidth();
1503 XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, w, bh);
1504 }
1505
1506 void
1507 resizeclient(Client *c, int x, int y, int w, int h, int bw)
1508 {
1509 XWindowChanges wc;
1510
1511 c->oldx = c->x; c->x = wc.x = x;
1512 c->oldy = c->y; c->y = wc.y = y;
1513 c->oldw = c->w; c->w = wc.width = w;
1514 c->oldh = c->h; c->h = wc.height = h;
1515 c->oldbw = c->bw; c->bw = wc.border_width = bw;
1516 XConfigureWindow(dpy, c->win, CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc);
1517 configure(c);
1518 XSync(dpy, False);
1519 }
1520
1521 void
1522 resizemouse(const Arg *arg)
1523 {
1524 int ocx, ocy, nw, nh;
1525 Client *c;
1526 Monitor *m;
1527 XEvent ev;
1528 Time lasttime = 0;
1529
1530 if (!(c = selmon->sel))
1531 return;
1532 if (c->isfullscreen) /* no support resizing fullscreen windows by mouse */
1533 return;
1534 restack(selmon);
1535 ocx = c->x;
1536 ocy = c->y;
1537 if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
1538 None, cursor[CurResize]->cursor, CurrentTime) != GrabSuccess)
1539 return;
1540 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
1541 do {
1542 XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
1543 switch(ev.type) {
1544 case ConfigureRequest:
1545 case Expose:
1546 case MapRequest:
1547 handler[ev.type](&ev);
1548 break;
1549 case MotionNotify:
1550 if ((ev.xmotion.time - lasttime) <= (1000 / 60))
1551 continue;
1552 lasttime = ev.xmotion.time;
1553
1554 nw = MAX(ev.xmotion.x - ocx - 2 * c->bw + 1, 1);
1555 nh = MAX(ev.xmotion.y - ocy - 2 * c->bw + 1, 1);
1556 if (c->mon->wx + nw >= selmon->wx && c->mon->wx + nw <= selmon->wx + selmon->ww
1557 && c->mon->wy + nh >= selmon->wy && c->mon->wy + nh <= selmon->wy + selmon->wh)
1558 {
1559 if (!c->isfloating && selmon->lt[selmon->sellt]->arrange
1560 && (abs(nw - c->w) > snap || abs(nh - c->h) > snap))
1561 togglefloating(NULL);
1562 }
1563 if (!selmon->lt[selmon->sellt]->arrange || c->isfloating)
1564 resize(c, c->x, c->y, nw, nh, c->bw, 1);
1565 break;
1566 }
1567 } while (ev.type != ButtonRelease);
1568 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
1569 XUngrabPointer(dpy, CurrentTime);
1570 while (XCheckMaskEvent(dpy, EnterWindowMask, &ev));
1571 if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) {
1572 sendmon(c, m);
1573 selmon = m;
1574 focus(NULL);
1575 }
1576 }
1577
1578 void
1579 resizerequest(XEvent *e)
1580 {
1581 XResizeRequestEvent *ev = &e->xresizerequest;
1582 Client *i;
1583
1584 if ((i = wintosystrayicon(ev->window))) {
1585 updatesystrayicongeom(i, ev->width, ev->height);
1586 resizebarwin(selmon);
1587 updatesystray();
1588 }
1589 }
1590
1591 void
1592 restack(Monitor *m)
1593 {
1594 Client *c;
1595 XEvent ev;
1596 XWindowChanges wc;
1597
1598 drawbar(m);
1599 if (!m->sel)
1600 return;
1601 if (m->sel->isfloating || !m->lt[m->sellt]->arrange)
1602 XRaiseWindow(dpy, m->sel->win);
1603 if (m->lt[m->sellt]->arrange) {
1604 wc.stack_mode = Below;
1605 wc.sibling = m->barwin;
1606 for (c = m->stack; c; c = c->snext)
1607 if (!c->isfloating && ISVISIBLE(c)) {
1608 XConfigureWindow(dpy, c->win, CWSibling|CWStackMode, &wc);
1609 wc.sibling = c->win;
1610 }
1611 }
1612 XSync(dpy, False);
1613 while (XCheckMaskEvent(dpy, EnterWindowMask, &ev));
1614 }
1615
1616 void
1617 run(void)
1618 {
1619 XEvent ev;
1620 /* main event loop */
1621 XSync(dpy, False);
1622 while (running && !XNextEvent(dpy, &ev))
1623 if (handler[ev.type])
1624 handler[ev.type](&ev); /* call handler */
1625 }
1626
1627 void
1628 scan(void)
1629 {
1630 unsigned int i, num;
1631 Window d1, d2, *wins = NULL;
1632 XWindowAttributes wa;
1633
1634 if (XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
1635 for (i = 0; i < num; i++) {
1636 if (!XGetWindowAttributes(dpy, wins[i], &wa)
1637 || wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
1638 continue;
1639 if (wa.map_state == IsViewable || getstate(wins[i]) == IconicState)
1640 manage(wins[i], &wa);
1641 }
1642 for (i = 0; i < num; i++) { /* now the transients */
1643 if (!XGetWindowAttributes(dpy, wins[i], &wa))
1644 continue;
1645 if (XGetTransientForHint(dpy, wins[i], &d1)
1646 && (wa.map_state == IsViewable || getstate(wins[i]) == IconicState))
1647 manage(wins[i], &wa);
1648 }
1649 if (wins)
1650 XFree(wins);
1651 }
1652 }
1653
1654 void
1655 sendmon(Client *c, Monitor *m)
1656 {
1657 if (c->mon == m)
1658 return;
1659 unfocus(c, 1);
1660 detach(c);
1661 detachstack(c);
1662 c->mon = m;
1663 c->tags = m->tagset[m->seltags]; /* assign tags of target monitor */
1664 attachabove(c);
1665 attachstack(c);
1666 focus(NULL);
1667 arrange(NULL);
1668 }
1669
1670 void
1671 setclientstate(Client *c, long state)
1672 {
1673 long data[] = { state, None };
1674
1675 XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,
1676 PropModeReplace, (unsigned char *)data, 2);
1677 }
1678
1679 int
1680 sendevent(Window w, Atom proto, int mask, long d0, long d1, long d2, long d3, long d4)
1681 {
1682 int n;
1683 Atom *protocols, mt;
1684 int exists = 0;
1685 XEvent ev;
1686
1687 if (proto == wmatom[WMTakeFocus] || proto == wmatom[WMDelete]) {
1688 mt = wmatom[WMProtocols];
1689 if (XGetWMProtocols(dpy, w, &protocols, &n)) {
1690 while (!exists && n--)
1691 exists = protocols[n] == proto;
1692 XFree(protocols);
1693 }
1694 }
1695 else {
1696 exists = True;
1697 mt = proto;
1698 }
1699
1700 if (exists) {
1701 ev.type = ClientMessage;
1702 ev.xclient.window = w;
1703 ev.xclient.message_type = mt;
1704 ev.xclient.format = 32;
1705 ev.xclient.data.l[0] = d0;
1706 ev.xclient.data.l[1] = d1;
1707 ev.xclient.data.l[2] = d2;
1708 ev.xclient.data.l[3] = d3;
1709 ev.xclient.data.l[4] = d4;
1710 XSendEvent(dpy, w, False, mask, &ev);
1711 }
1712 return exists;
1713 }
1714
1715 void
1716 setfocus(Client *c)
1717 {
1718 if (!c->neverfocus) {
1719 XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
1720 XChangeProperty(dpy, root, netatom[NetActiveWindow],
1721 XA_WINDOW, 32, PropModeReplace,
1722 (unsigned char *) &(c->win), 1);
1723 }
1724 sendevent(c->win, wmatom[WMTakeFocus], NoEventMask, wmatom[WMTakeFocus], CurrentTime, 0, 0, 0);
1725 }
1726
1727 void
1728 setfullscreen(Client *c, int fullscreen)
1729 {
1730 if (fullscreen && !c->isfullscreen) {
1731 XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
1732 PropModeReplace, (unsigned char*)&netatom[NetWMFullscreen], 1);
1733 c->isfullscreen = 1;
1734 c->oldstate = c->isfloating;
1735 c->isfloating = 1;
1736 resizeclient(c, c->mon->mx, c->mon->my, c->mon->mw, c->mon->mh, 0);
1737 XRaiseWindow(dpy, c->win);
1738 } else if (!fullscreen && c->isfullscreen){
1739 XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
1740 PropModeReplace, (unsigned char*)0, 0);
1741 c->isfullscreen = 0;
1742 c->isfloating = c->oldstate;
1743 c->x = c->oldx;
1744 c->y = c->oldy;
1745 c->w = c->oldw;
1746 c->h = c->oldh;
1747 c->bw = c->oldbw;
1748 resizeclient(c, c->x, c->y, c->w, c->h, c->bw);
1749 arrange(c->mon);
1750 }
1751 }
1752
1753 void
1754 setlayout(const Arg *arg)
1755 {
1756 if (!arg || !arg->v || arg->v != selmon->lt[selmon->sellt])
1757 selmon->sellt = selmon->pertag->sellts[selmon->pertag->curtag] ^= 1;
1758 if (arg && arg->v)
1759 selmon->lt[selmon->sellt] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt] = (Layout *)arg->v;
1760 strncpy(selmon->ltsymbol, selmon->lt[selmon->sellt]->symbol, sizeof selmon->ltsymbol);
1761 if (selmon->sel)
1762 arrange(selmon);
1763 else
1764 drawbar(selmon);
1765 }
1766
1767 /* arg > 1.0 will set mfact absolutely */
1768 void
1769 setmfact(const Arg *arg)
1770 {
1771 float f;
1772
1773 if (!arg || !selmon->lt[selmon->sellt]->arrange)
1774 return;
1775 f = arg->f < 1.0 ? arg->f + selmon->mfact : arg->f - 1.0;
1776 if (f < 0.05 || f > 0.95)
1777 return;
1778 selmon->mfact = selmon->pertag->mfacts[selmon->pertag->curtag] = f;
1779 arrange(selmon);
1780 }
1781
1782 void
1783 setup(void)
1784 {
1785 int i;
1786 XSetWindowAttributes wa;
1787 Atom utf8string;
1788 struct sigaction sa;
1789
1790 /* do not transform children into zombies when they terminate */
1791 sigemptyset(&sa.sa_mask);
1792 sa.sa_flags = SA_NOCLDSTOP | SA_NOCLDWAIT | SA_RESTART;
1793 sa.sa_handler = SIG_IGN;
1794 sigaction(SIGCHLD, &sa, NULL);
1795
1796 /* clean up any zombies (inherited from .xinitrc etc) immediately */
1797 while (waitpid(-1, NULL, WNOHANG) > 0);
1798
1799 /* init screen */
1800 screen = DefaultScreen(dpy);
1801 sw = DisplayWidth(dpy, screen);
1802 sh = DisplayHeight(dpy, screen);
1803 root = RootWindow(dpy, screen);
1804 drw = drw_create(dpy, screen, root, sw, sh);
1805 if (!drw_fontset_create(drw, fonts, LENGTH(fonts)))
1806 die("no fonts could be loaded.");
1807 lrpad = drw->fonts->h;
1808 bh = drw->fonts->h + 2;
1809 updategeom();
1810 /* init atoms */
1811 utf8string = XInternAtom(dpy, "UTF8_STRING", False);
1812 wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
1813 wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
1814 wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);
1815 wmatom[WMTakeFocus] = XInternAtom(dpy, "WM_TAKE_FOCUS", False);
1816 netatom[NetActiveWindow] = XInternAtom(dpy, "_NET_ACTIVE_WINDOW", False);
1817 netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
1818 netatom[NetSystemTray] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_S0", False);
1819 netatom[NetSystemTrayOP] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_OPCODE", False);
1820 netatom[NetSystemTrayOrientation] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_ORIENTATION", False);
1821 netatom[NetSystemTrayOrientationHorz] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_ORIENTATION_HORZ", False);
1822 netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
1823 netatom[NetWMState] = XInternAtom(dpy, "_NET_WM_STATE", False);
1824 netatom[NetWMCheck] = XInternAtom(dpy, "_NET_SUPPORTING_WM_CHECK", False);
1825 netatom[NetWMFullscreen] = XInternAtom(dpy, "_NET_WM_STATE_FULLSCREEN", False);
1826 netatom[NetWMWindowType] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False);
1827 netatom[NetWMWindowTypeDialog] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False);
1828 netatom[NetClientList] = XInternAtom(dpy, "_NET_CLIENT_LIST", False);
1829 xatom[Manager] = XInternAtom(dpy, "MANAGER", False);
1830 xatom[Xembed] = XInternAtom(dpy, "_XEMBED", False);
1831 xatom[XembedInfo] = XInternAtom(dpy, "_XEMBED_INFO", False);
1832 /* init cursors */
1833 cursor[CurNormal] = drw_cur_create(drw, XC_left_ptr);
1834 cursor[CurResize] = drw_cur_create(drw, XC_sizing);
1835 cursor[CurMove] = drw_cur_create(drw, XC_fleur);
1836 /* init appearance */
1837 scheme = ecalloc(LENGTH(colors), sizeof(Clr *));
1838 for (i = 0; i < LENGTH(colors); i++)
1839 scheme[i] = drw_scm_create(drw, colors[i], 3);
1840 /* init system tray */
1841 updatesystray();
1842 /* init bars */
1843 updatebars();
1844 updatestatus();
1845 /* supporting window for NetWMCheck */
1846 wmcheckwin = XCreateSimpleWindow(dpy, root, 0, 0, 1, 1, 0, 0, 0);
1847 XChangeProperty(dpy, wmcheckwin, netatom[NetWMCheck], XA_WINDOW, 32,
1848 PropModeReplace, (unsigned char *) &wmcheckwin, 1);
1849 XChangeProperty(dpy, wmcheckwin, netatom[NetWMName], utf8string, 8,
1850 PropModeReplace, (unsigned char *) "dwm", 3);
1851 XChangeProperty(dpy, root, netatom[NetWMCheck], XA_WINDOW, 32,
1852 PropModeReplace, (unsigned char *) &wmcheckwin, 1);
1853 /* EWMH support per view */
1854 XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
1855 PropModeReplace, (unsigned char *) netatom, NetLast);
1856 XDeleteProperty(dpy, root, netatom[NetClientList]);
1857 /* select events */
1858 wa.cursor = cursor[CurNormal]->cursor;
1859 wa.event_mask = SubstructureRedirectMask|SubstructureNotifyMask
1860 |ButtonPressMask|PointerMotionMask|EnterWindowMask
1861 |LeaveWindowMask|StructureNotifyMask|PropertyChangeMask;
1862 XChangeWindowAttributes(dpy, root, CWEventMask|CWCursor, &wa);
1863 XSelectInput(dpy, root, wa.event_mask);
1864 grabkeys();
1865 focus(NULL);
1866 }
1867
1868 void
1869 seturgent(Client *c, int urg)
1870 {
1871 XWMHints *wmh;
1872
1873 c->isurgent = urg;
1874 if (!(wmh = XGetWMHints(dpy, c->win)))
1875 return;
1876 wmh->flags = urg ? (wmh->flags | XUrgencyHint) : (wmh->flags & ~XUrgencyHint);
1877 XSetWMHints(dpy, c->win, wmh);
1878 XFree(wmh);
1879 }
1880
1881 void
1882 window_set_state(Display *dpy, Window win, long state)
1883 {
1884 long data[] = { state, None };
1885
1886 XChangeProperty(dpy, win, wmatom[WMState], wmatom[WMState], 32,
1887 PropModeReplace, (unsigned char*)data, 2);
1888 }
1889
1890 void
1891 window_map(Display *dpy, Client *c, int deiconify)
1892 {
1893 Window win = c->win;
1894
1895 if (deiconify)
1896 window_set_state(dpy, win, NormalState);
1897 XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
1898 XSetInputFocus(dpy, win, RevertToPointerRoot, CurrentTime);
1899 XMapWindow(dpy, win);
1900 }
1901
1902 void
1903 window_unmap(Display *dpy, Window win, Window root, int iconify)
1904 {
1905 static XWindowAttributes ra, ca;
1906
1907 XGrabServer(dpy);
1908 XGetWindowAttributes(dpy, root, &ra);
1909 XGetWindowAttributes(dpy, win, &ca);
1910 /* Prevent UnmapNotify events */
1911 XSelectInput(dpy, root, ra.your_event_mask & ~SubstructureNotifyMask);
1912 XSelectInput(dpy, win, ca.your_event_mask & ~StructureNotifyMask);
1913 XUnmapWindow(dpy, win);
1914 if (iconify)
1915 window_set_state(dpy, win, IconicState);
1916 XSelectInput(dpy, root, ra.your_event_mask);
1917 XSelectInput(dpy, win, ca.your_event_mask);
1918 XUngrabServer(dpy);
1919 }
1920
1921 void
1922 showhide(Client *c)
1923 {
1924 if (!c)
1925 return;
1926 if (ISVISIBLE(c)) {
1927 /* show clients top down */
1928 window_map(dpy, c, 1);
1929 showhide(c->snext);
1930 } else {
1931 /* hide clients bottom up */
1932 showhide(c->snext);
1933 window_unmap(dpy, c->win, root, 1);
1934 }
1935 }
1936
1937 void
1938 spawn(const Arg *arg)
1939 {
1940 struct sigaction sa;
1941
1942 if (arg->v == dmenucmd)
1943 dmenumon[0] = '0' + selmon->num;
1944
1945 selmon->tagset[selmon->seltags] &= ~scratchtag;
1946
1947 if (fork() == 0) {
1948 if (dpy)
1949 close(ConnectionNumber(dpy));
1950 setsid();
1951
1952 sigemptyset(&sa.sa_mask);
1953 sa.sa_flags = 0;
1954 sa.sa_handler = SIG_DFL;
1955 sigaction(SIGCHLD, &sa, NULL);
1956
1957 execvp(((char **)arg->v)[0], (char **)arg->v);
1958 die("dwm: execvp '%s' failed:", ((char **)arg->v)[0]);
1959 }
1960 }
1961
1962 void
1963 tag(const Arg *arg)
1964 {
1965 if (selmon->sel && arg->ui & TAGMASK) {
1966 selmon->sel->tags = arg->ui & TAGMASK;
1967 focus(NULL);
1968 arrange(selmon);
1969 }
1970 }
1971
1972 void
1973 tagmon(const Arg *arg)
1974 {
1975 if (!selmon->sel || !mons->next)
1976 return;
1977 sendmon(selmon->sel, dirtomon(arg->i));
1978 }
1979
1980 void
1981 col(Monitor *m)
1982 {
1983 unsigned int i, n, h, w, x, y, mw, bw;
1984 Client *c;
1985
1986 for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
1987 if (n == 0)
1988 return;
1989
1990 if (n == 1)
1991 bw = 0;
1992 else
1993 bw = borderpx;
1994
1995 if (n > m->nmaster)
1996 mw = m->nmaster ? m->ww * m->mfact : 0;
1997 else
1998 mw = m->ww;
1999 for (i = x = y = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
2000 if (i < m->nmaster) {
2001 w = (mw - x) / (MIN(n, m->nmaster) - i);
2002 resize(c, x + m->wx, m->wy, w - (2 * c->bw), m->wh - (2 * c->bw), bw, 0);
2003 x += WIDTH(c);
2004 } else {
2005 h = (m->wh - y) / (n - i);
2006 resize(c, x + m->wx, m->wy + y, m->ww - x - (2 * c->bw), h - (2 * c->bw), bw, 0);
2007 y += HEIGHT(c);
2008 }
2009 }
2010
2011 void
2012 tile(Monitor *m)
2013 {
2014 unsigned int i, n, h, mw, my, ty, bw;
2015 Client *c;
2016
2017 for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
2018 if (n == 0)
2019 return;
2020
2021 if (n == 1)
2022 bw = 0;
2023 else
2024 bw = borderpx;
2025
2026 if (n > m->nmaster)
2027 mw = m->nmaster ? m->ww * m->mfact : 0;
2028 else
2029 mw = m->ww;
2030 for (i = my = ty = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
2031 if (i < m->nmaster) {
2032 h = (m->wh - my) / (MIN(n, m->nmaster) - i);
2033 resize(c, m->wx, m->wy + my, mw - 2*bw, h - 2*bw, bw, 0);
2034 if (my + HEIGHT(c) < m->wh)
2035 my += HEIGHT(c);
2036 } else {
2037 h = (m->wh - ty) / (n - i);
2038 resize(c, m->wx + mw, m->wy + ty, m->ww - mw - 2*bw, h - 2*bw, bw, 0);
2039 if (ty + HEIGHT(c) < m->wh)
2040 ty += HEIGHT(c);
2041 }
2042 }
2043
2044 void
2045 togglebar(const Arg *arg)
2046 {
2047 selmon->showbar = selmon->pertag->showbars[selmon->pertag->curtag] = !selmon->showbar;
2048 updatebarpos(selmon);
2049 resizebarwin(selmon);
2050 if (showsystray) {
2051 XWindowChanges wc;
2052 if (!selmon->showbar)
2053 wc.y = -bh;
2054 else if (selmon->showbar) {
2055 wc.y = 0;
2056 if (!selmon->topbar)
2057 wc.y = selmon->mh - bh;
2058 }
2059 XConfigureWindow(dpy, systray->win, CWY, &wc);
2060 }
2061 arrange(selmon);
2062 }
2063
2064 void
2065 togglefloating(const Arg *arg)
2066 {
2067 if (!selmon->sel)
2068 return;
2069 if (selmon->sel->isfullscreen) /* no support for fullscreen windows */
2070 return;
2071 selmon->sel->isfloating = !selmon->sel->isfloating || selmon->sel->isfixed;
2072 if (selmon->sel->isfloating)
2073 resize(selmon->sel, selmon->sel->x, selmon->sel->y,
2074 selmon->sel->w - 2 * (borderpx - selmon->sel->bw),
2075 selmon->sel->h - 2 * (borderpx - selmon->sel->bw),
2076 borderpx, 0);
2077 arrange(selmon);
2078 }
2079
2080 void
2081 togglescratch(const Arg *arg)
2082 {
2083 Client *c;
2084 unsigned int found = 0;
2085
2086 for (c = selmon->clients; c && !(found = c->tags & scratchtag); c = c->next);
2087 if (found) {
2088 unsigned int newtagset = selmon->tagset[selmon->seltags] ^ scratchtag;
2089 if (newtagset) {
2090 selmon->tagset[selmon->seltags] = newtagset;
2091 focus(NULL);
2092 arrange(selmon);
2093 }
2094 if (ISVISIBLE(c)) {
2095 focus(c);
2096 restack(selmon);
2097 }
2098 } else
2099 spawn(arg);
2100 }
2101
2102 void
2103 toggletag(const Arg *arg)
2104 {
2105 unsigned int newtags;
2106
2107 if (!selmon->sel)
2108 return;
2109 newtags = selmon->sel->tags ^ (arg->ui & TAGMASK);
2110 if (newtags) {
2111 selmon->sel->tags = newtags;
2112 focus(NULL);
2113 arrange(selmon);
2114 }
2115 }
2116
2117 void
2118 toggleview(const Arg *arg)
2119 {
2120 unsigned int newtagset = selmon->tagset[selmon->seltags] ^ (arg->ui & TAGMASK);
2121 int i;
2122
2123 if (newtagset) {
2124 selmon->tagset[selmon->seltags] = newtagset;
2125
2126 if (newtagset == ~0) {
2127 selmon->pertag->prevtag = selmon->pertag->curtag;
2128 selmon->pertag->curtag = 0;
2129 }
2130
2131 /* test if the user did not select the same tag */
2132 if (!(newtagset & 1 << (selmon->pertag->curtag - 1))) {
2133 selmon->pertag->prevtag = selmon->pertag->curtag;
2134 for (i = 0; !(newtagset & 1 << i); i++) ;
2135 selmon->pertag->curtag = i + 1;
2136 }
2137
2138 /* apply settings for this view */
2139 selmon->nmaster = selmon->pertag->nmasters[selmon->pertag->curtag];
2140 selmon->mfact = selmon->pertag->mfacts[selmon->pertag->curtag];
2141 selmon->sellt = selmon->pertag->sellts[selmon->pertag->curtag];
2142 selmon->lt[selmon->sellt] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt];
2143 selmon->lt[selmon->sellt^1] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt^1];
2144
2145 if (selmon->showbar != selmon->pertag->showbars[selmon->pertag->curtag])
2146 togglebar(NULL);
2147
2148 focus(NULL);
2149 arrange(selmon);
2150 }
2151 }
2152
2153 void
2154 unfocus(Client *c, int setfocus)
2155 {
2156 if (!c)
2157 return;
2158 grabbuttons(c, 0);
2159 XSetWindowBorder(dpy, c->win, scheme[SchemeNorm][ColBorder].pixel);
2160 if (setfocus) {
2161 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
2162 XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
2163 }
2164 }
2165
2166 void
2167 unmanage(Client *c, int destroyed)
2168 {
2169 Monitor *m = c->mon;
2170 XWindowChanges wc;
2171
2172 detach(c);
2173 detachstack(c);
2174 if (!destroyed) {
2175 wc.border_width = c->oldbw;
2176 XGrabServer(dpy); /* avoid race conditions */
2177 XSetErrorHandler(xerrordummy);
2178 XSelectInput(dpy, c->win, NoEventMask);
2179 XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */
2180 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
2181 setclientstate(c, WithdrawnState);
2182 XSync(dpy, False);
2183 XSetErrorHandler(xerror);
2184 XUngrabServer(dpy);
2185 }
2186 free(c);
2187 focus(NULL);
2188 updateclientlist();
2189 arrange(m);
2190 }
2191
2192 void
2193 unmapnotify(XEvent *e)
2194 {
2195 Client *c;
2196 XUnmapEvent *ev = &e->xunmap;
2197
2198 if ((c = wintoclient(ev->window))) {
2199 if (ev->send_event)
2200 setclientstate(c, WithdrawnState);
2201 else
2202 unmanage(c, 0);
2203 }
2204 else if ((c = wintosystrayicon(ev->window))) {
2205 /* KLUDGE! sometimes icons occasionally unmap their windows, but do
2206 * _not_ destroy them. We map those windows back */
2207 XMapRaised(dpy, c->win);
2208 updatesystray();
2209 }
2210 }
2211
2212 void
2213 updatebars(void)
2214 {
2215 unsigned int w;
2216 Monitor *m;
2217 XSetWindowAttributes wa = {
2218 .override_redirect = True,
2219 .background_pixmap = ParentRelative,
2220 .event_mask = ButtonPressMask|ExposureMask
2221 };
2222 XClassHint ch = {"dwm", "dwm"};
2223 for (m = mons; m; m = m->next) {
2224 if (m->barwin)
2225 continue;
2226 w = m->ww;
2227 if (showsystray && m == systraytomon(m))
2228 w -= getsystraywidth();
2229 m->barwin = XCreateWindow(dpy, root, m->wx, m->by, w, bh, 0, DefaultDepth(dpy, screen),
2230 CopyFromParent, DefaultVisual(dpy, screen),
2231 CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
2232 XDefineCursor(dpy, m->barwin, cursor[CurNormal]->cursor);
2233 if (showsystray && m == systraytomon(m))
2234 XMapRaised(dpy, systray->win);
2235 XMapRaised(dpy, m->barwin);
2236 XSetClassHint(dpy, m->barwin, &ch);
2237 }
2238 }
2239
2240 void
2241 updatebarpos(Monitor *m)
2242 {
2243 m->wy = m->my;
2244 m->wh = m->mh;
2245 if (m->showbar) {
2246 m->wh -= bh;
2247 m->by = m->topbar ? m->wy : m->wy + m->wh;
2248 m->wy = m->topbar ? m->wy + bh : m->wy;
2249 } else
2250 m->by = -bh;
2251 }
2252
2253 void
2254 updateclientlist(void)
2255 {
2256 Client *c;
2257 Monitor *m;
2258
2259 XDeleteProperty(dpy, root, netatom[NetClientList]);
2260 for (m = mons; m; m = m->next)
2261 for (c = m->clients; c; c = c->next)
2262 XChangeProperty(dpy, root, netatom[NetClientList],
2263 XA_WINDOW, 32, PropModeAppend,
2264 (unsigned char *) &(c->win), 1);
2265 }
2266
2267 int
2268 updategeom(void)
2269 {
2270 int dirty = 0;
2271
2272 #ifdef XINERAMA
2273 if (XineramaIsActive(dpy)) {
2274 int i, j, n, nn;
2275 Client *c;
2276 Monitor *m;
2277 XineramaScreenInfo *info = XineramaQueryScreens(dpy, &nn);
2278 XineramaScreenInfo *unique = NULL;
2279
2280 for (n = 0, m = mons; m; m = m->next, n++);
2281 /* only consider unique geometries as separate screens */
2282 unique = ecalloc(nn, sizeof(XineramaScreenInfo));
2283 for (i = 0, j = 0; i < nn; i++)
2284 if (isuniquegeom(unique, j, &info[i]))
2285 memcpy(&unique[j++], &info[i], sizeof(XineramaScreenInfo));
2286 XFree(info);
2287 nn = j;
2288
2289 /* new monitors if nn > n */
2290 for (i = n; i < nn; i++) {
2291 for (m = mons; m && m->next; m = m->next);
2292 if (m)
2293 m->next = createmon();
2294 else
2295 mons = createmon();
2296 }
2297 for (i = 0, m = mons; i < nn && m; m = m->next, i++)
2298 if (i >= n
2299 || unique[i].x_org != m->mx || unique[i].y_org != m->my
2300 || unique[i].width != m->mw || unique[i].height != m->mh)
2301 {
2302 dirty = 1;
2303 m->num = i;
2304 m->mx = m->wx = unique[i].x_org;
2305 m->my = m->wy = unique[i].y_org;
2306 m->mw = m->ww = unique[i].width;
2307 m->mh = m->wh = unique[i].height;
2308 updatebarpos(m);
2309 }
2310 /* removed monitors if n > nn */
2311 for (i = nn; i < n; i++) {
2312 for (m = mons; m && m->next; m = m->next);
2313 while ((c = m->clients)) {
2314 dirty = 1;
2315 m->clients = c->next;
2316 detachstack(c);
2317 c->mon = mons;
2318 attachabove(c);
2319 attachstack(c);
2320 }
2321 if (m == selmon)
2322 selmon = mons;
2323 cleanupmon(m);
2324 }
2325 free(unique);
2326 } else
2327 #endif /* XINERAMA */
2328 { /* default monitor setup */
2329 if (!mons)
2330 mons = createmon();
2331 if (mons->mw != sw || mons->mh != sh) {
2332 dirty = 1;
2333 mons->mw = mons->ww = sw;
2334 mons->mh = mons->wh = sh;
2335 updatebarpos(mons);
2336 }
2337 }
2338 if (dirty) {
2339 selmon = mons;
2340 selmon = wintomon(root);
2341 }
2342 return dirty;
2343 }
2344
2345 void
2346 updatenumlockmask(void)
2347 {
2348 unsigned int i, j;
2349 XModifierKeymap *modmap;
2350
2351 numlockmask = 0;
2352 modmap = XGetModifierMapping(dpy);
2353 for (i = 0; i < 8; i++)
2354 for (j = 0; j < modmap->max_keypermod; j++)
2355 if (modmap->modifiermap[i * modmap->max_keypermod + j]
2356 == XKeysymToKeycode(dpy, XK_Num_Lock))
2357 numlockmask = (1 << i);
2358 XFreeModifiermap(modmap);
2359 }
2360
2361 void
2362 updatesizehints(Client *c)
2363 {
2364 long msize;
2365 XSizeHints size;
2366
2367 if (!XGetWMNormalHints(dpy, c->win, &size, &msize))
2368 /* size is uninitialized, ensure that size.flags aren't used */
2369 size.flags = PSize;
2370 if (size.flags & PBaseSize) {
2371 c->basew = size.base_width;
2372 c->baseh = size.base_height;
2373 } else if (size.flags & PMinSize) {
2374 c->basew = size.min_width;
2375 c->baseh = size.min_height;
2376 } else
2377 c->basew = c->baseh = 0;
2378 if (size.flags & PResizeInc) {
2379 c->incw = size.width_inc;
2380 c->inch = size.height_inc;
2381 } else
2382 c->incw = c->inch = 0;
2383 if (size.flags & PMaxSize) {
2384 c->maxw = size.max_width;
2385 c->maxh = size.max_height;
2386 } else
2387 c->maxw = c->maxh = 0;
2388 if (size.flags & PMinSize) {
2389 c->minw = size.min_width;
2390 c->minh = size.min_height;
2391 } else if (size.flags & PBaseSize) {
2392 c->minw = size.base_width;
2393 c->minh = size.base_height;
2394 } else
2395 c->minw = c->minh = 0;
2396 if (size.flags & PAspect) {
2397 c->mina = (float)size.min_aspect.y / size.min_aspect.x;
2398 c->maxa = (float)size.max_aspect.x / size.max_aspect.y;
2399 } else
2400 c->maxa = c->mina = 0.0;
2401 c->isfixed = (c->maxw && c->maxh && c->maxw == c->minw && c->maxh == c->minh);
2402 c->hintsvalid = 1;
2403 }
2404
2405 void
2406 updatestatus(void)
2407 {
2408 if (!gettextprop(root, XA_WM_NAME, stext, sizeof(stext)))
2409 strcpy(stext, "dwm-"VERSION);
2410 drawbar(selmon);
2411 updatesystray();
2412 }
2413
2414
2415 void
2416 updatesystrayicongeom(Client *i, int w, int h)
2417 {
2418 if (i) {
2419 i->h = bh;
2420 if (w == h)
2421 i->w = bh;
2422 else if (h == bh)
2423 i->w = w;
2424 else
2425 i->w = (int) ((float)bh * ((float)w / (float)h));
2426 applysizehints(i, &(i->x), &(i->y), &(i->w), &(i->h), &(i->bw), False);
2427 /* force icons into the systray dimensions if they don't want to */
2428 if (i->h > bh) {
2429 if (i->w == i->h)
2430 i->w = bh;
2431 else
2432 i->w = (int) ((float)bh * ((float)i->w / (float)i->h));
2433 i->h = bh;
2434 }
2435 }
2436 }
2437
2438 void
2439 updatesystrayiconstate(Client *i, XPropertyEvent *ev)
2440 {
2441 long flags;
2442 int code = 0;
2443
2444 if (!showsystray || !i || ev->atom != xatom[XembedInfo] ||
2445 !(flags = getatomprop(i, xatom[XembedInfo])))
2446 return;
2447
2448 if (flags & XEMBED_MAPPED && !i->tags) {
2449 i->tags = 1;
2450 code = XEMBED_WINDOW_ACTIVATE;
2451 XMapRaised(dpy, i->win);
2452 setclientstate(i, NormalState);
2453 }
2454 else if (!(flags & XEMBED_MAPPED) && i->tags) {
2455 i->tags = 0;
2456 code = XEMBED_WINDOW_DEACTIVATE;
2457 XUnmapWindow(dpy, i->win);
2458 setclientstate(i, WithdrawnState);
2459 }
2460 else
2461 return;
2462 sendevent(i->win, xatom[Xembed], StructureNotifyMask, CurrentTime, code, 0,
2463 systray->win, XEMBED_EMBEDDED_VERSION);
2464 }
2465
2466 void
2467 updatesystray(void)
2468 {
2469 XSetWindowAttributes wa;
2470 XWindowChanges wc;
2471 Client *i;
2472 Monitor *m = systraytomon(NULL);
2473 unsigned int x = m->mx + m->mw;
2474 unsigned int sw = TEXTW(stext) - lrpad + systrayspacing;
2475 unsigned int w = 1;
2476
2477 if (!showsystray)
2478 return;
2479 if (systrayonleft)
2480 x -= sw + lrpad / 2;
2481 if (!systray) {
2482 /* init systray */
2483 if (!(systray = (Systray *)calloc(1, sizeof(Systray))))
2484 die("fatal: could not malloc() %u bytes\n", sizeof(Systray));
2485 systray->win = XCreateSimpleWindow(dpy, root, x, m->by, w, bh, 0, 0, scheme[SchemeSel][ColBg].pixel);
2486 wa.event_mask = ButtonPressMask | ExposureMask;
2487 wa.override_redirect = True;
2488 wa.background_pixel = scheme[SchemeNorm][ColBg].pixel;
2489 XSelectInput(dpy, systray->win, SubstructureNotifyMask);
2490 XChangeProperty(dpy, systray->win, netatom[NetSystemTrayOrientation], XA_CARDINAL, 32,
2491 PropModeReplace, (unsigned char *)&netatom[NetSystemTrayOrientationHorz], 1);
2492 XChangeWindowAttributes(dpy, systray->win, CWEventMask|CWOverrideRedirect|CWBackPixel, &wa);
2493 XMapRaised(dpy, systray->win);
2494 XSetSelectionOwner(dpy, netatom[NetSystemTray], systray->win, CurrentTime);
2495 if (XGetSelectionOwner(dpy, netatom[NetSystemTray]) == systray->win) {
2496 sendevent(root, xatom[Manager], StructureNotifyMask, CurrentTime, netatom[NetSystemTray], systray->win, 0, 0);
2497 XSync(dpy, False);
2498 }
2499 else {
2500 fprintf(stderr, "dwm: unable to obtain system tray.\n");
2501 free(systray);
2502 systray = NULL;
2503 return;
2504 }
2505 }
2506 for (w = 0, i = systray->icons; i; i = i->next) {
2507 /* make sure the background color stays the same */
2508 wa.background_pixel = scheme[SchemeNorm][ColBg].pixel;
2509 XChangeWindowAttributes(dpy, i->win, CWBackPixel, &wa);
2510 XMapRaised(dpy, i->win);
2511 w += systrayspacing;
2512 i->x = w;
2513 XMoveResizeWindow(dpy, i->win, i->x, 0, i->w, i->h);
2514 w += i->w;
2515 if (i->mon != m)
2516 i->mon = m;
2517 }
2518 w = w ? w + systrayspacing : 1;
2519 x -= w;
2520 XMoveResizeWindow(dpy, systray->win, x, m->by, w, bh);
2521 wc.x = x; wc.y = m->by; wc.width = w; wc.height = bh;
2522 wc.stack_mode = Above; wc.sibling = m->barwin;
2523 XConfigureWindow(dpy, systray->win, CWX|CWY|CWWidth|CWHeight|CWSibling|CWStackMode, &wc);
2524 XMapWindow(dpy, systray->win);
2525 XMapSubwindows(dpy, systray->win);
2526 /* redraw background */
2527 XSetForeground(dpy, drw->gc, scheme[SchemeNorm][ColBg].pixel);
2528 XFillRectangle(dpy, systray->win, drw->gc, 0, 0, w, bh);
2529 XSync(dpy, False);
2530 }
2531
2532 void
2533 updatetitle(Client *c)
2534 {
2535 if (!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
2536 gettextprop(c->win, XA_WM_NAME, c->name, sizeof c->name);
2537 if (c->name[0] == '\0') /* hack to mark broken clients */
2538 strcpy(c->name, broken);
2539 }
2540
2541 void
2542 updatewindowtype(Client *c)
2543 {
2544 Atom state = getatomprop(c, netatom[NetWMState]);
2545 Atom wtype = getatomprop(c, netatom[NetWMWindowType]);
2546
2547 if (state == netatom[NetWMFullscreen])
2548 setfullscreen(c, 1);
2549 if (wtype == netatom[NetWMWindowTypeDialog])
2550 c->isfloating = 1;
2551 }
2552
2553 void
2554 updatewmhints(Client *c)
2555 {
2556 XWMHints *wmh;
2557
2558 if ((wmh = XGetWMHints(dpy, c->win))) {
2559 if (c == selmon->sel && wmh->flags & XUrgencyHint) {
2560 wmh->flags &= ~XUrgencyHint;
2561 XSetWMHints(dpy, c->win, wmh);
2562 } else
2563 c->isurgent = (wmh->flags & XUrgencyHint) ? 1 : 0;
2564 if (wmh->flags & InputHint)
2565 c->neverfocus = !wmh->input;
2566 else
2567 c->neverfocus = 0;
2568 XFree(wmh);
2569 }
2570 }
2571
2572 void
2573 view(const Arg *arg)
2574 {
2575 int i;
2576 unsigned int tmptag;
2577
2578 if ((arg->ui & TAGMASK) == selmon->tagset[selmon->seltags])
2579 return;
2580 selmon->seltags ^= 1; /* toggle sel tagset */
2581 if (arg->ui & TAGMASK) {
2582 selmon->tagset[selmon->seltags] = arg->ui & TAGMASK;
2583 selmon->pertag->prevtag = selmon->pertag->curtag;
2584
2585 if (arg->ui == ~0)
2586 selmon->pertag->curtag = 0;
2587 else {
2588 for (i = 0; !(arg->ui & 1 << i); i++) ;
2589 selmon->pertag->curtag = i + 1;
2590 }
2591 } else {
2592 tmptag = selmon->pertag->prevtag;
2593 selmon->pertag->prevtag = selmon->pertag->curtag;
2594 selmon->pertag->curtag = tmptag;
2595 }
2596
2597 selmon->nmaster = selmon->pertag->nmasters[selmon->pertag->curtag];
2598 selmon->mfact = selmon->pertag->mfacts[selmon->pertag->curtag];
2599 selmon->sellt = selmon->pertag->sellts[selmon->pertag->curtag];
2600 selmon->lt[selmon->sellt] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt];
2601 selmon->lt[selmon->sellt^1] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt^1];
2602
2603 if (selmon->showbar != selmon->pertag->showbars[selmon->pertag->curtag])
2604 togglebar(NULL);
2605
2606 focus(NULL);
2607 arrange(selmon);
2608 }
2609
2610 void
2611 viewtoleft(const Arg *arg) {
2612 if (__builtin_popcount(selmon->tagset[selmon->seltags] & TAGMASK) == 1
2613 && selmon->tagset[selmon->seltags] > 1) {
2614 selmon->seltags ^= 1; /* toggle sel tagset */
2615 selmon->tagset[selmon->seltags] = selmon->tagset[selmon->seltags ^ 1] >> 1;
2616 focus(NULL);
2617 arrange(selmon);
2618 }
2619 }
2620
2621 void
2622 viewtoright(const Arg *arg) {
2623 if (__builtin_popcount(selmon->tagset[selmon->seltags] & TAGMASK) == 1
2624 && selmon->tagset[selmon->seltags] & (TAGMASK >> 1)) {
2625 selmon->seltags ^= 1;
2626 selmon->tagset[selmon->seltags] = selmon->tagset[selmon->seltags ^ 1] << 1;
2627 focus(NULL);
2628 arrange(selmon);
2629 }
2630 }
2631
2632 Client *
2633 wintoclient(Window w)
2634 {
2635 Client *c;
2636 Monitor *m;
2637
2638 for (m = mons; m; m = m->next)
2639 for (c = m->clients; c; c = c->next)
2640 if (c->win == w)
2641 return c;
2642 return NULL;
2643 }
2644
2645 Client *
2646 wintosystrayicon(Window w) {
2647 Client *i = NULL;
2648
2649 if (!showsystray || !w)
2650 return i;
2651 for (i = systray->icons; i && i->win != w; i = i->next) ;
2652 return i;
2653 }
2654
2655 Monitor *
2656 wintomon(Window w)
2657 {
2658 int x, y;
2659 Client *c;
2660 Monitor *m;
2661
2662 if (w == root && getrootptr(&x, &y))
2663 return recttomon(x, y, 1, 1);
2664 for (m = mons; m; m = m->next)
2665 if (w == m->barwin)
2666 return m;
2667 if ((c = wintoclient(w)))
2668 return c->mon;
2669 return selmon;
2670 }
2671
2672 /* There's no way to check accesses to destroyed windows, thus those cases are
2673 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
2674 * default error handler, which may call exit. */
2675 int
2676 xerror(Display *dpy, XErrorEvent *ee)
2677 {
2678 if (ee->error_code == BadWindow
2679 || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
2680 || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
2681 || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
2682 || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
2683 || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
2684 || (ee->request_code == X_GrabButton && ee->error_code == BadAccess)
2685 || (ee->request_code == X_GrabKey && ee->error_code == BadAccess)
2686 || (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
2687 return 0;
2688 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
2689 ee->request_code, ee->error_code);
2690 return xerrorxlib(dpy, ee); /* may call exit */
2691 }
2692
2693 int
2694 xerrordummy(Display *dpy, XErrorEvent *ee)
2695 {
2696 return 0;
2697 }
2698
2699 /* Startup Error handler to check if another window manager
2700 * is already running. */
2701 int
2702 xerrorstart(Display *dpy, XErrorEvent *ee)
2703 {
2704 die("dwm: another window manager is already running");
2705 return -1;
2706 }
2707
2708 Monitor *
2709 systraytomon(Monitor *m) {
2710 Monitor *t;
2711 int i, n;
2712 if(!systraypinning) {
2713 if(!m)
2714 return selmon;
2715 return m == selmon ? m : NULL;
2716 }
2717 for(n = 1, t = mons; t && t->next; n++, t = t->next) ;
2718 for(i = 1, t = mons; t && t->next && i < systraypinning; i++, t = t->next) ;
2719 if(systraypinningfailfirst && n < systraypinning)
2720 return mons;
2721 return t;
2722 }
2723
2724 void
2725 zoom(const Arg *arg)
2726 {
2727 Client *c = selmon->sel;
2728
2729 if (!selmon->lt[selmon->sellt]->arrange || !c || c->isfloating)
2730 return;
2731 if (c == nexttiled(selmon->clients) && !(c = nexttiled(c->next)))
2732 return;
2733 pop(c);
2734 }
2735
2736 int
2737 main(int argc, char *argv[])
2738 {
2739 if (argc == 2 && !strcmp("-v", argv[1]))
2740 die("dwm-"VERSION);
2741 else if (argc != 1)
2742 die("usage: dwm [-v]");
2743 if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
2744 fputs("warning: no locale support\n", stderr);
2745 if (!(dpy = XOpenDisplay(NULL)))
2746 die("dwm: cannot open display");
2747 checkotherwm();
2748 setup();
2749 #ifdef __OpenBSD__
2750 if (pledge("stdio rpath proc exec", NULL) == -1)
2751 die("pledge");
2752 #endif /* __OpenBSD__ */
2753 scan();
2754 run();
2755 cleanup();
2756 XCloseDisplay(dpy);
2757 return EXIT_SUCCESS;
2758 }