3 * Copyright (c) 2009 Marco Peereboom <marco@peereboom.us>
4 * Copyright (c) 2009 Ryan McBride <mcbride@countersiege.com>
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19 * Much code and ideas taken from dwm under the following license:
20 * MIT/X Consortium License
22 * 2006-2008 Anselm R Garbe <garbeam at gmail dot com>
23 * 2006-2007 Sander van Dijk <a dot h dot vandijk at gmail dot com>
24 * 2006-2007 Jukka Salmi <jukka at salmi dot ch>
25 * 2007 Premysl Hruby <dfenze at gmail dot com>
26 * 2007 Szabolcs Nagy <nszabolcs at gmail dot com>
27 * 2007 Christof Musik <christof at sendfax dot de>
28 * 2007-2008 Enno Gottox Boland <gottox at s01 dot de>
29 * 2007-2008 Peter Hartlich <sgkkr at hartlich dot com>
30 * 2008 Martin Hurton <martin dot hurton at gmail dot com>
32 * Permission is hereby granted, free of charge, to any person obtaining a
33 * copy of this software and associated documentation files (the "Software"),
34 * to deal in the Software without restriction, including without limitation
35 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
36 * and/or sell copies of the Software, and to permit persons to whom the
37 * Software is furnished to do so, subject to the following conditions:
39 * The above copyright notice and this permission notice shall be included in
40 * all copies or substantial portions of the Software.
42 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
43 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
44 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
45 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
46 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
47 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
48 * DEALINGS IN THE SOFTWARE.
51 #define SWM_VERSION "0.5"
62 #include <sys/types.h>
64 #include <sys/queue.h>
66 #include <X11/cursorfont.h>
67 #include <X11/keysym.h>
68 #include <X11/Xatom.h>
70 #include <X11/Xproto.h>
71 #include <X11/Xutil.h>
73 /* #define SWM_DEBUG */
75 #define DPRINTF(x...) do { if (swm_debug) fprintf(stderr, x); } while(0)
76 #define DNPRINTF(n,x...) do { if (swm_debug & n) fprintf(stderr, x); } while(0)
77 #define SWM_D_EVENT 0x0001
78 #define SWM_D_WS 0x0002
79 #define SWM_D_FOCUS 0x0004
80 #define SWM_D_MISC 0x0008
82 uint32_t swm_debug = 0
90 #define DNPRINTF(n,x...)
93 #define LENGTH(x) (sizeof x / sizeof x[0])
94 #define MODKEY Mod1Mask
95 #define CLEANMASK(mask) (mask & ~(numlockmask | LockMask))
97 int (*xerrorxlib)(Display *, XErrorEvent *);
102 int ignore_enter = 0;
103 unsigned int numlockmask = 0;
104 unsigned long col_focus = 0xff0000; /* XXX should this be per ws? */
105 unsigned long col_unfocus = 0x888888;
119 TAILQ_ENTRY(ws_win) entry;
127 TAILQ_HEAD(ws_win_list, ws_win);
129 /* define work spaces */
130 #define SWM_WS_MAX (10)
132 int visible; /* workspace visible */
133 int restack; /* restack on switch */
134 struct ws_win *focus; /* which win has focus */
135 int winno; /* total nr of windows */
136 struct ws_win_list winlist; /* list of windows in ws */
140 /* args to functions */
143 #define SWM_ARG_ID_FOCUSNEXT (0)
144 #define SWM_ARG_ID_FOCUSPREV (1)
145 #define SWM_ARG_ID_FOCUSMAIN (2)
158 if (bar_enabled == 0)
162 XSetForeground(display, bar_gc, 0x000000);
163 XDrawString(display, bar_window, bar_gc, 4, bar_fs->ascent, bar_text,
168 localtime_r(&tmt, &tm);
169 strftime(bar_text, sizeof bar_text, "%a %b %d %R %Z %Y", &tm);
170 XSetForeground(display, bar_gc, 0xa0a0a0);
171 XDrawString(display, bar_window, bar_gc, 4, bar_fs->ascent, bar_text,
173 XSync(display, False);
181 /* XXX yeah yeah byte me */
186 bar_toggle(union arg *args)
188 DNPRINTF(SWM_D_MISC, "bar_toggle\n");
192 height += bar_height; /* correct screen height */
193 XUnmapWindow(display, bar_window);
196 height -= bar_height; /* correct screen height */
197 XMapWindow(display, bar_window);
199 XSync(display, False);
202 bar_print(); /* must be after stack */
206 quit(union arg *args)
208 DNPRINTF(SWM_D_MISC, "quit\n");
213 spawn(union arg *args)
215 DNPRINTF(SWM_D_MISC, "spawn: %s\n", args->argv[0]);
217 * The double-fork construct avoids zombie processes and keeps the code
218 * clean from stupid signal handlers.
223 close(ConnectionNumber(display));
225 execvp(args->argv[0], args->argv);
226 fprintf(stderr, "execvp failed\n");
235 focus_win(struct ws_win *win)
237 DNPRINTF(SWM_D_FOCUS, "focus_win: id: %lu\n", win->id);
238 XSetWindowBorder(display, win->id, col_focus);
239 XSetInputFocus(display, win->id, RevertToPointerRoot, CurrentTime);
240 ws[current_ws].focus = win;
244 unfocus_win(struct ws_win *win)
246 DNPRINTF(SWM_D_FOCUS, "unfocus_win: id: %lu\n", win->id);
247 XSetWindowBorder(display, win->id, col_unfocus);
248 if (ws[current_ws].focus == win)
249 ws[current_ws].focus = NULL;
253 switchws(union arg *args)
258 DNPRINTF(SWM_D_WS, "switchws: %d\n", wsid + 1);
260 if (wsid == current_ws)
263 /* map new window first to prevent ugly blinking */
264 TAILQ_FOREACH (win, &ws[wsid].winlist, entry)
265 XMapWindow(display, win->id);
266 ws[wsid].visible = 1;
268 TAILQ_FOREACH (win, &ws[current_ws].winlist, entry)
269 XUnmapWindow(display, win->id);
270 ws[current_ws].visible = 0;
275 if (ws[wsid].restack) {
278 if (ws[wsid].focus != NULL)
279 focus_win(ws[wsid].focus);
280 XSync(display, False);
285 focus(union arg *args)
287 struct ws_win *winfocus, *winlostfocus;
289 DNPRINTF(SWM_D_FOCUS, "focus: id %d\n", args->id);
290 if (ws[current_ws].focus == NULL || ws[current_ws].winno == 0)
293 winlostfocus = ws[current_ws].focus;
296 case SWM_ARG_ID_FOCUSPREV:
297 ws[current_ws].focus =
298 TAILQ_PREV(ws[current_ws].focus, ws_win_list, entry);
299 if (ws[current_ws].focus == NULL)
300 ws[current_ws].focus =
301 TAILQ_LAST(&ws[current_ws].winlist, ws_win_list);
304 case SWM_ARG_ID_FOCUSNEXT:
305 ws[current_ws].focus = TAILQ_NEXT(ws[current_ws].focus, entry);
306 if (ws[current_ws].focus == NULL)
307 ws[current_ws].focus =
308 TAILQ_FIRST(&ws[current_ws].winlist);
311 case SWM_ARG_ID_FOCUSMAIN:
312 ws[current_ws].focus = TAILQ_FIRST(&ws[current_ws].winlist);
319 winfocus = ws[current_ws].focus;
320 unfocus_win(winlostfocus);
322 XSync(display, False);
325 /* I know this sucks but it works well enough */
330 struct ws_win wf, *win, *winfocus = &wf;
331 int i, h, w, x, y, hrh;
333 DNPRINTF(SWM_D_EVENT, "stack: workspace: %d\n", current_ws);
337 if (ws[current_ws].winno == 0)
340 if (ws[current_ws].winno > 1)
345 if (ws[current_ws].winno > 2)
346 hrh = height / (ws[current_ws].winno - 1);
351 y = bar_enabled ? bar_height : 0;
354 TAILQ_FOREACH (win, &ws[current_ws].winlist, entry) {
359 if (i != 0 && hrh != 0) {
360 /* correct the last window for lost pixels */
361 if (win == TAILQ_LAST(&ws[current_ws].winlist,
363 h = height - (i * hrh);
371 /* leave first right hand window at y = 0 */
377 bzero(&wc, sizeof wc);
380 win->width = wc.width = w;
381 win->height = wc.height = h;
383 XConfigureWindow(display, win->id, CWX | CWY | CWWidth |
384 CWHeight | CWBorderWidth, &wc);
385 if (win == ws[current_ws].focus)
389 XMapWindow(display, win->id);
393 focus_win(winfocus); /* this has to be done outside of the loop */
394 XSync(display, False);
398 swap_to_main(union arg *args)
400 struct ws_win *tmpwin = TAILQ_FIRST(&ws[current_ws].winlist);
402 DNPRINTF(SWM_D_MISC, "swap_to_main: win: %lu\n",
403 ws[current_ws].focus ? ws[current_ws].focus->id : 0);
405 if (ws[current_ws].focus == NULL || ws[current_ws].focus == tmpwin)
408 TAILQ_REMOVE(&ws[current_ws].winlist, tmpwin, entry);
409 TAILQ_INSERT_AFTER(&ws[current_ws].winlist, ws[current_ws].focus,
411 TAILQ_REMOVE(&ws[current_ws].winlist, ws[current_ws].focus, entry);
412 TAILQ_INSERT_HEAD(&ws[current_ws].winlist, ws[current_ws].focus, entry);
413 ws[current_ws].focus = TAILQ_FIRST(&ws[current_ws].winlist);
419 send_to_ws(union arg *args)
422 struct ws_win *win = ws[current_ws].focus;
424 DNPRINTF(SWM_D_WS, "send_to_ws: win: %lu\n", win->id);
426 XUnmapWindow(display, win->id);
428 /* find a window to focus */
429 ws[current_ws].focus = TAILQ_PREV(win, ws_win_list,entry);
430 if (ws[current_ws].focus == NULL)
431 ws[current_ws].focus = TAILQ_FIRST(&ws[current_ws].winlist);
433 TAILQ_REMOVE(&ws[current_ws].winlist, win, entry);
434 ws[current_ws].winno--;
436 TAILQ_INSERT_TAIL(&ws[wsid].winlist, win, entry);
437 if (ws[wsid].winno == 0)
438 ws[wsid].focus = win;
440 ws[wsid].restack = 1;
445 /* terminal + args */
446 char *term[] = { "xterm", NULL };
448 /* key definitions */
452 void (*func)(union arg *);
455 /* modifier key function argument */
456 { MODKEY, XK_Return, swap_to_main, {0} },
457 { MODKEY | ShiftMask, XK_Return, spawn, {.argv = term } },
458 { MODKEY | ShiftMask, XK_q, quit, {0} },
459 { MODKEY, XK_m, focus, {.id = SWM_ARG_ID_FOCUSMAIN} },
460 { MODKEY, XK_1, switchws, {.id = 0} },
461 { MODKEY, XK_2, switchws, {.id = 1} },
462 { MODKEY, XK_3, switchws, {.id = 2} },
463 { MODKEY, XK_4, switchws, {.id = 3} },
464 { MODKEY, XK_5, switchws, {.id = 4} },
465 { MODKEY, XK_6, switchws, {.id = 5} },
466 { MODKEY, XK_7, switchws, {.id = 6} },
467 { MODKEY, XK_8, switchws, {.id = 7} },
468 { MODKEY, XK_9, switchws, {.id = 8} },
469 { MODKEY, XK_0, switchws, {.id = 9} },
470 { MODKEY | ShiftMask, XK_1, send_to_ws, {.id = 0} },
471 { MODKEY | ShiftMask, XK_2, send_to_ws, {.id = 1} },
472 { MODKEY | ShiftMask, XK_3, send_to_ws, {.id = 2} },
473 { MODKEY | ShiftMask, XK_4, send_to_ws, {.id = 3} },
474 { MODKEY | ShiftMask, XK_5, send_to_ws, {.id = 4} },
475 { MODKEY | ShiftMask, XK_6, send_to_ws, {.id = 5} },
476 { MODKEY | ShiftMask, XK_7, send_to_ws, {.id = 6} },
477 { MODKEY | ShiftMask, XK_8, send_to_ws, {.id = 7} },
478 { MODKEY | ShiftMask, XK_9, send_to_ws, {.id = 8} },
479 { MODKEY | ShiftMask, XK_0, send_to_ws, {.id = 9} },
480 { MODKEY, XK_b, bar_toggle, {0} },
481 { MODKEY, XK_Tab, focus, {.id = SWM_ARG_ID_FOCUSNEXT} },
482 { MODKEY | ShiftMask, XK_Tab, focus, {.id = SWM_ARG_ID_FOCUSPREV} },
486 updatenumlockmask(void)
489 XModifierKeymap *modmap;
491 DNPRINTF(SWM_D_MISC, "updatenumlockmask\n");
493 modmap = XGetModifierMapping(display);
494 for (i = 0; i < 8; i++)
495 for (j = 0; j < modmap->max_keypermod; j++)
496 if (modmap->modifiermap[i * modmap->max_keypermod + j]
497 == XKeysymToKeycode(display, XK_Num_Lock))
498 numlockmask = (1 << i);
500 XFreeModifiermap(modmap);
508 unsigned int modifiers[] =
509 { 0, LockMask, numlockmask, numlockmask | LockMask };
511 DNPRINTF(SWM_D_MISC, "grabkeys\n");
514 XUngrabKey(display, AnyKey, AnyModifier, root);
515 for(i = 0; i < LENGTH(keys); i++) {
516 if((code = XKeysymToKeycode(display, keys[i].keysym)))
517 for(j = 0; j < LENGTH(modifiers); j++)
518 XGrabKey(display, code,
519 keys[i].mod | modifiers[j], root,
520 True, GrabModeAsync, GrabModeAsync);
526 DNPRINTF(SWM_D_EVENT, "expose: window: %lu\n", e->xexpose.window);
534 XKeyEvent *ev = &e->xkey;
536 DNPRINTF(SWM_D_EVENT, "keypress: window: %lu\n", ev->window);
538 keysym = XKeycodeToKeysym(display, (KeyCode)ev->keycode, 0);
539 for(i = 0; i < LENGTH(keys); i++)
540 if(keysym == keys[i].keysym
541 && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
543 keys[i].func(&(keys[i].args));
547 buttonpress(XEvent *e)
549 XButtonPressedEvent *ev = &e->xbutton;
550 #ifdef SWM_CLICKTOFOCUS
555 DNPRINTF(SWM_D_EVENT, "buttonpress: window: %lu\n", ev->window);
557 if (ev->window == root)
559 if (ev->window == ws[current_ws].focus->id)
561 #ifdef SWM_CLICKTOFOCUS
562 TAILQ_FOREACH(win, &ws[current_ws].winlist, entry)
563 if (win->id == ev->window) {
564 /* focus in the clicked window */
565 XSetWindowBorder(display, ev->window, 0xff0000);
566 XSetWindowBorder(display,
567 ws[current_ws].focus->id, 0x888888);
568 XSetInputFocus(display, ev->window, RevertToPointerRoot,
570 ws[current_ws].focus = win;
571 XSync(display, False);
578 configurerequest(XEvent *e)
580 XConfigureRequestEvent *ev = &e->xconfigurerequest;
583 DNPRINTF(SWM_D_EVENT, "configurerequest: window: %lu\n", ev->window);
585 XSelectInput(display, ev->window, ButtonPressMask | EnterWindowMask |
588 if ((win = calloc(1, sizeof(struct ws_win))) == NULL)
589 errx(1, "calloc: failed to allocate memory for new window");
591 win->id = ev->window;
592 TAILQ_INSERT_TAIL(&ws[current_ws].winlist, win, entry);
593 ws[current_ws].focus = win; /* make new win focused */
594 ws[current_ws].winno++;
599 configurenotify(XEvent *e)
601 DNPRINTF(SWM_D_EVENT, "configurenotify: window: %lu\n",
602 e->xconfigure.window);
606 destroynotify(XEvent *e)
609 XDestroyWindowEvent *ev = &e->xdestroywindow;
611 DNPRINTF(SWM_D_EVENT, "destroynotify: window %lu\n", ev->window);
613 TAILQ_FOREACH (win, &ws[current_ws].winlist, entry) {
614 if (ev->window == win->id) {
615 /* find a window to focus */
616 ws[current_ws].focus =
617 TAILQ_PREV(win, ws_win_list,entry);
618 if (ws[current_ws].focus == NULL)
619 ws[current_ws].focus =
620 TAILQ_FIRST(&ws[current_ws].winlist);
622 TAILQ_REMOVE(&ws[current_ws].winlist, win, entry);
624 ws[current_ws].winno--;
633 enternotify(XEvent *e)
635 XCrossingEvent *ev = &e->xcrossing;
638 DNPRINTF(SWM_D_EVENT, "enternotify: window: %lu\n", ev->window);
640 if((ev->mode != NotifyNormal || ev->detail == NotifyInferior) &&
644 /* eat event(s) to prevent autofocus */
648 TAILQ_FOREACH (win, &ws[current_ws].winlist, entry) {
649 if (win->id == ev->window)
659 XFocusChangeEvent *ev = &e->xfocus;
661 DNPRINTF(SWM_D_EVENT, "focusin: window: %lu\n", ev->window);
663 if (ev->window == root)
667 * kill grab for now so that we can cut and paste , this screws up
671 DNPRINTF(SWM_D_EVENT, "focusin: window: %lu grabbing\n", ev->window);
672 XGrabButton(display, Button1, AnyModifier, ev->window, False,
673 ButtonPress, GrabModeAsync, GrabModeSync, None, None);
678 mappingnotify(XEvent *e)
680 XMappingEvent *ev = &e->xmapping;
682 DNPRINTF(SWM_D_EVENT, "mappingnotify: window: %lu\n", ev->window);
684 XRefreshKeyboardMapping(ev);
685 if(ev->request == MappingKeyboard)
690 maprequest(XEvent *e)
692 DNPRINTF(SWM_D_EVENT, "maprequest: window: %lu\n",
693 e->xmaprequest.window);
697 propertynotify(XEvent *e)
699 DNPRINTF(SWM_D_EVENT, "propertynotify: window: %lu\n",
700 e->xproperty.window);
704 unmapnotify(XEvent *e)
706 DNPRINTF(SWM_D_EVENT, "unmapnotify: window: %lu\n", e->xunmap.window);
709 void (*handler[LASTEvent])(XEvent *) = {
711 [KeyPress] = keypress,
712 [ButtonPress] = buttonpress,
713 [ConfigureRequest] = configurerequest,
714 [ConfigureNotify] = configurenotify,
715 [DestroyNotify] = destroynotify,
716 [EnterNotify] = enternotify,
718 [MappingNotify] = mappingnotify,
719 [MapRequest] = maprequest,
720 [PropertyNotify] = propertynotify,
721 [UnmapNotify] = unmapnotify,
725 xerror_start(Display *d, XErrorEvent *ee)
732 xerror(Display *d, XErrorEvent *ee)
734 fprintf(stderr, "error: %p %p\n", display, ee);
743 xerrorxlib = XSetErrorHandler(xerror_start);
745 /* this causes an error if some other window manager is running */
746 XSelectInput(display, DefaultRootWindow(display),
747 SubstructureRedirectMask);
748 XSync(display, False);
752 XSetErrorHandler(xerror);
753 XSync(display, False);
758 main(int argc, char *argv[])
763 fprintf(stderr, "Welcome to scrotwm V%s\n", SWM_VERSION);
764 if(!setlocale(LC_CTYPE, "") || !XSupportsLocale())
765 warnx("no locale support");
767 if(!(display = XOpenDisplay(0)))
768 errx(1, "can not open display");
771 errx(1, "other wm running");
773 screen = DefaultScreen(display);
774 root = RootWindow(display, screen);
775 width = DisplayWidth(display, screen) - 2;
776 height = DisplayHeight(display, screen) - 2;
778 /* make work space 1 active */
783 TAILQ_INIT(&ws[0].winlist);
784 for (i = 1; i < SWM_WS_MAX; i++) {
789 TAILQ_INIT(&ws[i].winlist);
792 /* setup status bar */
793 bar_fs = XLoadQueryFont(display,
794 "-*-terminus-*-*-*-*-*-*-*-*-*-*-*-*");
795 if (bar_fs == NULL) {
796 /* load a font that is default */
797 bar_fs = XLoadQueryFont(display,
798 "-*-times-medium-r-*-*-*-*-*-*-*-*-*-*");
800 errx(1, "couldn't load font");
802 bar_height = bar_fs->ascent + bar_fs->descent + 3;
804 XSelectInput(display, root, SubstructureRedirectMask |
805 SubstructureNotifyMask | ButtonPressMask | KeyPressMask |
806 EnterWindowMask | LeaveWindowMask | StructureNotifyMask |
807 FocusChangeMask | PropertyChangeMask);
811 bar_window = XCreateSimpleWindow(display, root, 0, 0, width,
812 bar_height - 2, 1, 0x008080, 0x000000);
813 bar_gc = XCreateGC(display, bar_window, 0, &bar_gcv);
814 XSetFont(display, bar_gc, bar_fs->fid);
816 height -= bar_height; /* correct screen height */
817 XMapWindow(display, bar_window);
820 if (signal(SIGALRM, bar_signal) == SIG_ERR)
821 err(1, "could not install bar_signal");
825 XNextEvent(display, &e);
830 XCloseDisplay(display);