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Partly un-globalize workspace geometry.
[spectrwm] / scrotwm.c
1 /* $scrotwm$ */
2 /*
3 * Copyright (c) 2009 Marco Peereboom <marco@peereboom.us>
4 * Copyright (c) 2009 Ryan McBride <mcbride@countersiege.com>
5 *
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.
9 *
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.
17 */
18 /*
19 * Much code and ideas taken from dwm under the following license:
20 * MIT/X Consortium License
21 *
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>
31 *
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:
38 *
39 * The above copyright notice and this permission notice shall be included in
40 * all copies or substantial portions of the Software.
41 *
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.
49 */
50
51 #define SWM_VERSION "0.5"
52
53 #include <stdio.h>
54 #include <stdlib.h>
55 #include <err.h>
56 #include <locale.h>
57 #include <unistd.h>
58 #include <time.h>
59 #include <signal.h>
60 #include <string.h>
61 #include <util.h>
62 #include <pwd.h>
63
64 #include <sys/types.h>
65 #include <sys/stat.h>
66 #include <sys/wait.h>
67 #include <sys/queue.h>
68 #include <sys/param.h>
69
70 #include <X11/cursorfont.h>
71 #include <X11/keysym.h>
72 #include <X11/Xatom.h>
73 #include <X11/Xlib.h>
74 #include <X11/Xproto.h>
75 #include <X11/Xutil.h>
76
77 /* #define SWM_DEBUG */
78 #ifdef SWM_DEBUG
79 #define DPRINTF(x...) do { if (swm_debug) fprintf(stderr, x); } while(0)
80 #define DNPRINTF(n,x...) do { if (swm_debug & n) fprintf(stderr, x); } while(0)
81 #define SWM_D_MISC 0x0001
82 #define SWM_D_EVENT 0x0002
83 #define SWM_D_WS 0x0004
84 #define SWM_D_FOCUS 0x0008
85 #define SWM_D_MOVE 0x0010
86
87 u_int32_t swm_debug = 0
88 | SWM_D_MISC
89 | SWM_D_EVENT
90 | SWM_D_WS
91 | SWM_D_FOCUS
92 | SWM_D_MOVE
93 ;
94 #else
95 #define DPRINTF(x...)
96 #define DNPRINTF(n,x...)
97 #endif
98
99 #define LENGTH(x) (sizeof x / sizeof x[0])
100 #define MODKEY Mod1Mask
101 #define CLEANMASK(mask) (mask & ~(numlockmask | LockMask))
102
103 int (*xerrorxlib)(Display *, XErrorEvent *);
104 int other_wm;
105 int screen;
106 int running = 1;
107 int ignore_enter = 0;
108 unsigned int numlockmask = 0;
109 unsigned long color_focus = 0xff0000; /* XXX should this be per ws? */
110 unsigned long color_unfocus = 0x888888;
111 Display *display;
112 Window root;
113
114 /* status bar */
115 int bar_enabled = 1;
116 int bar_height = 0;
117 unsigned long bar_border = 0x008080;
118 unsigned long bar_color = 0x000000;
119 unsigned long bar_font_color = 0xa0a0a0;
120 Window bar_window;
121 GC bar_gc;
122 XGCValues bar_gcv;
123 XFontStruct *bar_fs;
124 char bar_text[128];
125 char *bar_fonts[] = {
126 "-*-terminus-*-*-*-*-*-*-*-*-*-*-*-*",
127 "-*-times-medium-r-*-*-*-*-*-*-*-*-*-*",
128 NULL
129 };
130
131 /* terminal + args */
132 char *spawn_term[] = { "xterm", NULL };
133 char *spawn_menu[] = { "dmenu_run", NULL };
134 char *spawn_scrotwm[] = { "scrotwm", NULL };
135
136 /* layout manager data */
137 struct swm_geometry {
138 int x;
139 int y;
140 int w;
141 int h;
142 };
143
144 void stack(void);
145 void vertical_init(void);
146 void vertical_stack(struct swm_geometry *);
147 void horizontal_init(void);
148 void horizontal_stack(struct swm_geometry *);
149 void max_init(void);
150 void max_stack(struct swm_geometry *);
151
152 struct layout {
153 void (*l_init)(void); /* init/reset */
154 void (*l_stack)(struct swm_geometry *);
155 } layouts[] = {
156 /* init stack */
157 { vertical_init, vertical_stack},
158 { horizontal_init, horizontal_stack},
159 /* XXX not working yet
160 * { max_init, max_stack},
161 */
162 { NULL, NULL},
163 };
164
165 struct ws_win {
166 TAILQ_ENTRY(ws_win) entry;
167 Window id;
168 struct swm_geometry g;
169 int floating;
170 int transient;
171 XWindowAttributes wa;
172 XSizeHints sh;
173 };
174
175 TAILQ_HEAD(ws_win_list, ws_win);
176
177 /* define work spaces */
178 #define SWM_WS_MAX (10)
179 struct workspace {
180 int visible; /* workspace visible */
181 int restack; /* restack on switch */
182 struct swm_geometry g;
183 struct layout *cur_layout; /* current layout handlers */
184 struct ws_win *focus; /* which win has focus */
185 struct ws_win_list winlist; /* list of windows in ws */
186 } ws[SWM_WS_MAX];
187 int current_ws = 0;
188
189 /* args to functions */
190 union arg {
191 int id;
192 #define SWM_ARG_ID_FOCUSNEXT (0)
193 #define SWM_ARG_ID_FOCUSPREV (1)
194 #define SWM_ARG_ID_FOCUSMAIN (2)
195 #define SWM_ARG_ID_SWAPNEXT (3)
196 #define SWM_ARG_ID_SWAPPREV (4)
197 #define SWM_ARG_ID_SWAPMAIN (5)
198 char **argv;
199 };
200
201 /* conf file stuff */
202 #define SWM_CONF_WS "\n= \t"
203 #define SWM_CONF_FILE "scrotwm.conf"
204 int
205 conf_load(char *filename)
206 {
207 FILE *config;
208 char *line, *cp, *var, *val;
209 size_t len, lineno = 0;
210
211 DNPRINTF(SWM_D_MISC, "conf_load: filename %s\n", filename);
212
213 if (filename == NULL)
214 return (1);
215
216 if ((config = fopen(filename, "r")) == NULL)
217 return (1);
218
219 for (;;) {
220 if ((line = fparseln(config, &len, &lineno, NULL, 0)) == NULL)
221 if (feof(config))
222 break;
223 cp = line;
224 cp += (long)strspn(cp, SWM_CONF_WS);
225 if (cp[0] == '\0') {
226 /* empty line */
227 free(line);
228 continue;
229 }
230 if ((var = strsep(&cp, SWM_CONF_WS)) == NULL || cp == NULL)
231 break;
232 cp += (long)strspn(cp, SWM_CONF_WS);
233 if ((val = strsep(&cp, SWM_CONF_WS)) == NULL)
234 break;
235
236 DNPRINTF(SWM_D_MISC, "conf_load: %s=%s\n",var ,val);
237 switch (var[0]) {
238 case 'b':
239 if (!strncmp(var, "bar_enabled", strlen("bar_enabled")))
240 bar_enabled = atoi(val);
241 else if (!strncmp(var, "bar_border",
242 strlen("bar_border")))
243 bar_border = strtol(val, NULL, 16);
244 else if (!strncmp(var, "bar_color",
245 strlen("bar_color")))
246 bar_color = strtol(val, NULL, 16);
247 else if (!strncmp(var, "bar_font_color",
248 strlen("bar_font_color")))
249 bar_font_color = strtol(val, NULL, 16);
250 else if (!strncmp(var, "bar_font", strlen("bar_font")))
251 asprintf(&bar_fonts[0], "%s", val);
252 else
253 goto bad;
254 break;
255
256 case 'c':
257 if (!strncmp(var, "color_focus", strlen("color_focus")))
258 color_focus = strtol(val, NULL, 16);
259 else if (!strncmp(var, "color_unfocus",
260 strlen("color_unfocus")))
261 color_unfocus = strtol(val, NULL, 16);
262 else
263 goto bad;
264 break;
265
266 case 's':
267 if (!strncmp(var, "spawn_term", strlen("spawn_term")))
268 asprintf(&spawn_term[0], "%s", val); /* XXX args? */
269 break;
270 default:
271 goto bad;
272 }
273 free(line);
274 }
275
276 fclose(config);
277 return (0);
278 bad:
279 errx(1, "invalid conf file entry: %s=%s", var, val);
280 }
281
282 void
283 bar_print(void)
284 {
285 time_t tmt;
286 struct tm tm;
287
288 if (bar_enabled == 0)
289 return;
290
291 /* clear old text */
292 XSetForeground(display, bar_gc, bar_color);
293 XDrawString(display, bar_window, bar_gc, 4, bar_fs->ascent, bar_text,
294 strlen(bar_text));
295
296 /* draw new text */
297 time(&tmt);
298 localtime_r(&tmt, &tm);
299 strftime(bar_text, sizeof bar_text, "%a %b %d %R %Z %Y", &tm);
300 XSetForeground(display, bar_gc, bar_font_color);
301 XDrawString(display, bar_window, bar_gc, 4, bar_fs->ascent, bar_text,
302 strlen(bar_text));
303 XSync(display, False);
304
305 alarm(60);
306 }
307
308 void
309 bar_signal(int sig)
310 {
311 /* XXX yeah yeah byte me */
312 bar_print();
313 }
314
315 void
316 bar_toggle(union arg *args)
317 {
318 int i;
319
320 DNPRINTF(SWM_D_MISC, "bar_toggle\n");
321
322 if (bar_enabled) {
323 bar_enabled = 0;
324 XUnmapWindow(display, bar_window);
325 } else {
326 bar_enabled = 1;
327 XMapWindow(display, bar_window);
328 }
329 XSync(display, False);
330 for (i = 0; i < SWM_WS_MAX; i++)
331 ws[i].restack = 1;
332
333 stack();
334 bar_print(); /* must be after stack */
335 }
336
337 void
338 bar_setup(void)
339 {
340 int i;
341
342 for (i = 0; bar_fonts[i] != NULL; i++) {
343 bar_fs = XLoadQueryFont(display, bar_fonts[i]);
344 if (bar_fs)
345 break;
346 }
347 if (bar_fonts[i] == NULL)
348 errx(1, "couldn't load font");
349 bar_height = bar_fs->ascent + bar_fs->descent + 3;
350
351 bar_window = XCreateSimpleWindow(display, root, 0, 0,
352 ws[current_ws].g.w, bar_height - 2, 1, bar_border, bar_color);
353 bar_gc = XCreateGC(display, bar_window, 0, &bar_gcv);
354 XSetFont(display, bar_gc, bar_fs->fid);
355 XSelectInput(display, bar_window, VisibilityChangeMask);
356 if (bar_enabled) {
357 XMapWindow(display, bar_window);
358 }
359 DNPRINTF(SWM_D_MISC, "bar_setup: bar_window %d\n", (int)bar_window);
360
361 if (signal(SIGALRM, bar_signal) == SIG_ERR)
362 err(1, "could not install bar_signal");
363 bar_print();
364 }
365
366 int
367 count_win(int wsid, int count_transient)
368 {
369 struct ws_win *win;
370 int count = 0;
371
372 TAILQ_FOREACH (win, &ws[wsid].winlist, entry) {
373 if (count_transient == 0 && win->transient)
374 continue;
375 count++;
376 }
377 DNPRINTF(SWM_D_MISC, "count_win: %d\n", count);
378
379 return (count);
380 }
381 void
382 quit(union arg *args)
383 {
384 DNPRINTF(SWM_D_MISC, "quit\n");
385 running = 0;
386 }
387
388
389 void
390 restart(union arg *args)
391 {
392 XCloseDisplay(display);
393 execvp(args->argv[0], args->argv);
394 fprintf(stderr, "execvp failed\n");
395 perror(" failed");
396 quit(NULL);
397 }
398
399 void
400 spawn(union arg *args)
401 {
402 DNPRINTF(SWM_D_MISC, "spawn: %s\n", args->argv[0]);
403 /*
404 * The double-fork construct avoids zombie processes and keeps the code
405 * clean from stupid signal handlers.
406 */
407 if(fork() == 0) {
408 if(fork() == 0) {
409 if(display)
410 close(ConnectionNumber(display));
411 setsid();
412 execvp(args->argv[0], args->argv);
413 fprintf(stderr, "execvp failed\n");
414 perror(" failed");
415 }
416 exit(0);
417 }
418 wait(0);
419 }
420
421 void
422 focus_win(struct ws_win *win)
423 {
424 DNPRINTF(SWM_D_FOCUS, "focus_win: id: %lu\n", win->id);
425 XSetWindowBorder(display, win->id, color_focus);
426 XSetInputFocus(display, win->id, RevertToPointerRoot, CurrentTime);
427 ws[current_ws].focus = win;
428 }
429
430 void
431 unfocus_win(struct ws_win *win)
432 {
433 DNPRINTF(SWM_D_FOCUS, "unfocus_win: id: %lu\n", win->id);
434 XSetWindowBorder(display, win->id, color_unfocus);
435 if (ws[current_ws].focus == win)
436 ws[current_ws].focus = NULL;
437 }
438
439 void
440 switchws(union arg *args)
441 {
442 int wsid = args->id;
443 struct ws_win *win;
444
445 DNPRINTF(SWM_D_WS, "switchws: %d\n", wsid + 1);
446
447 if (wsid == current_ws)
448 return;
449
450 /* map new window first to prevent ugly blinking */
451 TAILQ_FOREACH (win, &ws[wsid].winlist, entry)
452 XMapRaised(display, win->id);
453 ws[wsid].visible = 1;
454
455 TAILQ_FOREACH (win, &ws[current_ws].winlist, entry)
456 XUnmapWindow(display, win->id);
457 ws[current_ws].visible = 0;
458
459 current_ws = wsid;
460
461 ignore_enter = 1;
462 if (ws[wsid].restack) {
463 stack();
464 bar_print();
465 } else {
466 if (ws[wsid].focus != NULL)
467 focus_win(ws[wsid].focus);
468 XSync(display, False);
469 }
470 }
471
472 void
473 swapwin(union arg *args)
474 {
475 struct ws_win *target;
476
477 DNPRINTF(SWM_D_MOVE, "swapwin: id %d\n", args->id);
478 if (ws[current_ws].focus == NULL)
479 return;
480
481 switch (args->id) {
482 case SWM_ARG_ID_SWAPPREV:
483 target = TAILQ_PREV(ws[current_ws].focus, ws_win_list, entry);
484 TAILQ_REMOVE(&ws[current_ws].winlist,
485 ws[current_ws].focus, entry);
486 if (target == NULL)
487 TAILQ_INSERT_TAIL(&ws[current_ws].winlist,
488 ws[current_ws].focus, entry);
489 else
490 TAILQ_INSERT_BEFORE(target, ws[current_ws].focus,
491 entry);
492 break;
493 case SWM_ARG_ID_SWAPNEXT:
494 target = TAILQ_NEXT(ws[current_ws].focus, entry);
495 TAILQ_REMOVE(&ws[current_ws].winlist,
496 ws[current_ws].focus, entry);
497 if (target == NULL)
498 TAILQ_INSERT_HEAD(&ws[current_ws].winlist,
499 ws[current_ws].focus, entry);
500 else
501 TAILQ_INSERT_AFTER(&ws[current_ws].winlist, target,
502 ws[current_ws].focus, entry);
503 break;
504 case SWM_ARG_ID_SWAPMAIN:
505 target = TAILQ_FIRST(&ws[current_ws].winlist);
506 if (target == ws[current_ws].focus)
507 return;
508 TAILQ_REMOVE(&ws[current_ws].winlist, target, entry);
509 TAILQ_INSERT_BEFORE(ws[current_ws].focus, target, entry);
510 TAILQ_REMOVE(&ws[current_ws].winlist,
511 ws[current_ws].focus, entry);
512 TAILQ_INSERT_HEAD(&ws[current_ws].winlist,
513 ws[current_ws].focus, entry);
514 break;
515 default:
516 DNPRINTF(SWM_D_MOVE, "invalid id: %d\n", args->id);
517 return;
518 }
519
520 ignore_enter = 2;
521 stack();
522 }
523
524 void
525 focus(union arg *args)
526 {
527 struct ws_win *winfocus, *winlostfocus;
528
529 DNPRINTF(SWM_D_FOCUS, "focus: id %d\n", args->id);
530 if (ws[current_ws].focus == NULL)
531 return;
532
533 winlostfocus = ws[current_ws].focus;
534
535 switch (args->id) {
536 case SWM_ARG_ID_FOCUSPREV:
537 winfocus = TAILQ_PREV(ws[current_ws].focus, ws_win_list, entry);
538 if (winfocus == NULL)
539 winfocus =
540 TAILQ_LAST(&ws[current_ws].winlist, ws_win_list);
541 break;
542
543 case SWM_ARG_ID_FOCUSNEXT:
544 winfocus = TAILQ_NEXT(ws[current_ws].focus, entry);
545 if (winfocus == NULL)
546 winfocus = TAILQ_FIRST(&ws[current_ws].winlist);
547 break;
548
549 case SWM_ARG_ID_FOCUSMAIN:
550 winfocus = TAILQ_FIRST(&ws[current_ws].winlist);
551 break;
552
553 default:
554 return;
555 }
556
557 if (winfocus == winlostfocus)
558 return;
559
560 unfocus_win(winlostfocus);
561 focus_win(winfocus);
562 XSync(display, False);
563 }
564
565 void
566 cycle_layout(union arg *args)
567 {
568 DNPRINTF(SWM_D_EVENT, "cycle_layout: workspace: %d\n", current_ws);
569
570 ws[current_ws].cur_layout++;
571 if (ws[current_ws].cur_layout->l_stack == NULL)
572 ws[current_ws].cur_layout = &layouts[0];
573 stack();
574 }
575
576 void
577 stack(void) {
578 struct swm_geometry g;
579 DNPRINTF(SWM_D_EVENT, "stack: workspace: %d\n", current_ws);
580
581 /* start with workspace geometry, adjust for bar */
582 g = ws[current_ws].g;
583 if (bar_enabled) {
584 g.y += bar_height;
585 g.h -= bar_height;
586 }
587
588 ws[current_ws].restack = 0;
589 ws[current_ws].cur_layout->l_stack(&g);
590 XSync(display, False);
591 }
592
593 void
594 stack_floater(struct ws_win *win)
595 {
596 unsigned int mask;
597 XWindowChanges wc;
598
599 bzero(&wc, sizeof wc);
600 wc.border_width = 1;
601 mask = CWX | CWY | CWBorderWidth;
602
603 /* use obsolete width height */
604 if (win->sh.flags & USPosition) {
605 win->g.w = wc.width = win->sh.width;
606 win->g.h = wc.height = win->sh.height;
607 mask |= CWWidth | CWHeight;
608 }
609
610 /* try min max */
611 if (win->sh.flags & PMinSize) {
612 /* some hints are retarded */
613 if (win->sh.min_width < ws[current_ws].g.w / 10)
614 win->sh.min_width = ws[current_ws].g.w / 3;
615 if (win->sh.min_height < ws[current_ws].g.h / 10)
616 win->wa.height = ws[current_ws].g.h / 3;
617
618 win->g.w = wc.width = win->sh.min_width * 2;
619 win->g.h = wc.height = win->sh.min_height * 2;
620 mask |= CWWidth | CWHeight;
621 }
622 if (win->sh.flags & PMaxSize) {
623 /* potentially override min values */
624 if (win->sh.max_width < ws[current_ws].g.w) {
625 win->g.w = wc.width = win->sh.max_width;
626 mask |= CWWidth;
627 }
628 if (win->sh.max_height < ws[current_ws].g.h) {
629 win->g.h = wc.height = win->sh.max_height;
630 mask |= CWHeight;
631 }
632 }
633
634 /* make sure we don't clobber the screen */
635 if ((mask & CWWidth) && win->wa.width > ws[current_ws].g.w)
636 win->wa.width = ws[current_ws].g.w - 4;
637 if ((mask & CWHeight) && win->wa.height > ws[current_ws].g.h)
638 win->wa.height = ws[current_ws].g.h - 4;
639
640 /* supposed to be obsolete */
641 if (win->sh.flags & USPosition) {
642 win->g.x = wc.x = win->sh.x;
643 win->g.y = wc.y = win->sh.y;
644 } else {
645 win->g.x = wc.x = (ws[current_ws].g.w - win->wa.width) / 2;
646 win->g.y = wc.y = (ws[current_ws].g.h - win->wa.height) / 2;
647 }
648 DNPRINTF(SWM_D_EVENT, "stack_floater: win %d x %d y %d w %d h %d\n",
649 win, wc.x, wc.y, wc.width, wc.height);
650
651 XConfigureWindow(display, win->id, mask, &wc);
652 }
653
654 void
655 vertical_init(void)
656 {
657 DNPRINTF(SWM_D_EVENT, "vertical_init: workspace: %d\n", current_ws);
658 }
659
660 /* I know this sucks but it works well enough */
661 void
662 vertical_stack(struct swm_geometry *g) {
663 XWindowChanges wc;
664 struct swm_geometry gg = *g;
665 struct ws_win wf, *win, *winfocus = &wf;
666 int i, hrh, winno;
667 unsigned int mask;
668
669 DNPRINTF(SWM_D_EVENT, "vertical_stack: workspace: %d\n", current_ws);
670
671 winfocus->id = root;
672
673 winno = count_win(current_ws, 0);
674 if (winno == 0)
675 return;
676
677 if (winno > 1)
678 gg.w = g->w / 2;
679
680 if (winno > 2)
681 hrh = g->h / (winno - 1);
682 else
683 hrh = 0;
684
685 i = 0;
686 TAILQ_FOREACH (win, &ws[current_ws].winlist, entry) {
687 if (i == 1) {
688 gg.x += gg.w + 2;
689 gg.w -= 2;
690 }
691 if (i != 0 && hrh != 0) {
692 /* correct the last window for lost pixels */
693 if (win == TAILQ_LAST(&ws[current_ws].winlist,
694 ws_win_list)) {
695 gg.h = hrh + (g->h - (i * hrh));
696 gg.y += hrh;
697 } else {
698 gg.h = hrh - 2;
699 /* leave first right hand window at y = 0 */
700 if (i > 1)
701 gg.y += gg.h + 2;
702 }
703 }
704
705 if (win->transient != 0 || win->floating != 0)
706 stack_floater(win);
707 else {
708 bzero(&wc, sizeof wc);
709 wc.border_width = 1;
710 win->g.x = wc.x = gg.x;
711 win->g.y = wc.y = gg.y;
712 win->g.w = wc.width = gg.w;
713 win->g.h = wc.height = gg.h;
714 mask = CWX | CWY | CWWidth | CWHeight | CWBorderWidth;
715 XConfigureWindow(display, win->id, mask, &wc);
716 }
717
718 if (win == ws[current_ws].focus)
719 winfocus = win;
720 else
721 unfocus_win(win);
722 XMapRaised(display, win->id);
723 i++;
724 }
725
726 focus_win(winfocus); /* this has to be done outside of the loop */
727 }
728
729 void
730 horizontal_init(void)
731 {
732 DNPRINTF(SWM_D_EVENT, "horizontal_init: workspace: %d\n", current_ws);
733 }
734
735 void
736 horizontal_stack(struct swm_geometry *g) {
737 XWindowChanges wc;
738 struct swm_geometry gg = *g;
739 struct ws_win wf, *win, *winfocus = &wf;
740 int i, hrw, winno;
741 unsigned int mask;
742
743 DNPRINTF(SWM_D_EVENT, "horizontal_stack: workspace: %d\n", current_ws);
744
745 winfocus->id = root;
746
747 winno = count_win(current_ws, 0);
748 if (winno == 0)
749 return;
750
751 if (winno > 1)
752 gg.h = g->h / 2;
753
754 if (winno > 2)
755 hrw = g->w / (winno - 1);
756 else
757 hrw = 0;
758
759 i = 0;
760 TAILQ_FOREACH (win, &ws[current_ws].winlist, entry) {
761 if (i == 1) {
762 gg.y += gg.h + 2;
763 gg.h -= (2 - g->h % 2);
764 }
765 if (i != 0 && hrw != 0) {
766 /* correct the last window for lost pixels */
767 if (win == TAILQ_LAST(&ws[current_ws].winlist,
768 ws_win_list)) {
769 gg.w = hrw + (g->w - (i * hrw));
770 gg.x += hrw;
771 } else {
772 gg.w = hrw - 2;
773 /* leave first bottom window at x = 0 */
774 if (i > 1)
775 gg.x += gg.w + 2;
776 }
777 }
778
779 if (win->transient != 0 || win->floating != 0)
780 stack_floater(win);
781 else {
782 bzero(&wc, sizeof wc);
783 wc.border_width = 1;
784 win->g.x = wc.x = gg.x;
785 win->g.y = wc.y = gg.y;
786 win->g.w = wc.width = gg.w;
787 win->g.h = wc.height = gg.h;
788 mask = CWX | CWY | CWWidth | CWHeight | CWBorderWidth;
789 XConfigureWindow(display, win->id, mask, &wc);
790 }
791
792 if (win == ws[current_ws].focus)
793 winfocus = win;
794 else
795 unfocus_win(win);
796 XMapRaised(display, win->id);
797 i++;
798 }
799
800 focus_win(winfocus); /* this has to be done outside of the loop */
801 }
802
803 /* fullscreen view */
804 void
805 max_init(void)
806 {
807 DNPRINTF(SWM_D_EVENT, "max_init: workspace: %d\n", current_ws);
808 }
809
810 void
811 max_stack(struct swm_geometry *g) {
812 XWindowChanges wc;
813 struct swm_geometry gg = *g;
814 struct ws_win wf, *win, *winfocus = &wf;
815 int i, winno;
816 unsigned int mask;
817
818 DNPRINTF(SWM_D_EVENT, "max_stack: workspace: %d\n", current_ws);
819
820 winfocus->id = root;
821
822 winno = count_win(current_ws, 0);
823 if (winno == 0)
824 return;
825
826 TAILQ_FOREACH (win, &ws[current_ws].winlist, entry) {
827 if (i == 1 && win->transient == 0 && win->floating != 0) {
828 gg.h -= 2;
829 gg.w -= 2;
830
831 winfocus = win;
832
833 bzero(&wc, sizeof wc);
834 wc.border_width = 1;
835 win->g.x = wc.x = gg.x;
836 win->g.y = wc.y = gg.y;
837 win->g.w = wc.width = gg.w;
838 win->g.h = wc.height = gg.h;
839 mask = CWX | CWY | CWWidth | CWHeight | CWBorderWidth;
840 XConfigureWindow(display, win->id, mask, &wc);
841
842 XMapRaised(display, win->id);
843 } else {
844 /* hide all but the master window */
845 XUnmapWindow(display, win->id);
846 }
847 i++;
848 }
849
850 focus_win(winfocus); /* this has to be done outside of the loop */
851 }
852
853 void
854 send_to_ws(union arg *args)
855 {
856 int wsid = args->id;
857 struct ws_win *win = ws[current_ws].focus;
858
859 DNPRINTF(SWM_D_MOVE, "send_to_ws: win: %lu\n", win->id);
860
861 XUnmapWindow(display, win->id);
862
863 /* find a window to focus */
864 ws[current_ws].focus = TAILQ_PREV(win, ws_win_list, entry);
865 if (ws[current_ws].focus == NULL)
866 ws[current_ws].focus = TAILQ_FIRST(&ws[current_ws].winlist);
867 if (ws[current_ws].focus == win)
868 ws[current_ws].focus = NULL;
869
870 TAILQ_REMOVE(&ws[current_ws].winlist, win, entry);
871
872 TAILQ_INSERT_TAIL(&ws[wsid].winlist, win, entry);
873 if (count_win(wsid, 1) == 1)
874 ws[wsid].focus = win;
875 ws[wsid].restack = 1;
876
877 stack();
878 }
879
880 /* key definitions */
881 struct key {
882 unsigned int mod;
883 KeySym keysym;
884 void (*func)(union arg *);
885 union arg args;
886 } keys[] = {
887 /* modifier key function argument */
888 /* XXX alt-c is temporary, until I figure out how to grab spacebar */
889 { MODKEY, XK_c, cycle_layout, {0} },
890 { MODKEY, XK_Return, swapwin, {.id = SWM_ARG_ID_SWAPMAIN} },
891 { MODKEY, XK_j, focus, {.id = SWM_ARG_ID_FOCUSNEXT} },
892 { MODKEY, XK_k, focus, {.id = SWM_ARG_ID_FOCUSPREV} },
893 { MODKEY | ShiftMask, XK_j, swapwin, {.id = SWM_ARG_ID_SWAPNEXT} },
894 { MODKEY | ShiftMask, XK_k, swapwin, {.id = SWM_ARG_ID_SWAPPREV} },
895 { MODKEY | ShiftMask, XK_Return, spawn, {.argv = spawn_term} },
896 { MODKEY, XK_p, spawn, {.argv = spawn_menu} },
897 { MODKEY | ShiftMask, XK_q, quit, {0} },
898 { MODKEY, XK_q, restart, {.argv = spawn_scrotwm } },
899 { MODKEY, XK_m, focus, {.id = SWM_ARG_ID_FOCUSMAIN} },
900 { MODKEY, XK_1, switchws, {.id = 0} },
901 { MODKEY, XK_2, switchws, {.id = 1} },
902 { MODKEY, XK_3, switchws, {.id = 2} },
903 { MODKEY, XK_4, switchws, {.id = 3} },
904 { MODKEY, XK_5, switchws, {.id = 4} },
905 { MODKEY, XK_6, switchws, {.id = 5} },
906 { MODKEY, XK_7, switchws, {.id = 6} },
907 { MODKEY, XK_8, switchws, {.id = 7} },
908 { MODKEY, XK_9, switchws, {.id = 8} },
909 { MODKEY, XK_0, switchws, {.id = 9} },
910 { MODKEY | ShiftMask, XK_1, send_to_ws, {.id = 0} },
911 { MODKEY | ShiftMask, XK_2, send_to_ws, {.id = 1} },
912 { MODKEY | ShiftMask, XK_3, send_to_ws, {.id = 2} },
913 { MODKEY | ShiftMask, XK_4, send_to_ws, {.id = 3} },
914 { MODKEY | ShiftMask, XK_5, send_to_ws, {.id = 4} },
915 { MODKEY | ShiftMask, XK_6, send_to_ws, {.id = 5} },
916 { MODKEY | ShiftMask, XK_7, send_to_ws, {.id = 6} },
917 { MODKEY | ShiftMask, XK_8, send_to_ws, {.id = 7} },
918 { MODKEY | ShiftMask, XK_9, send_to_ws, {.id = 8} },
919 { MODKEY | ShiftMask, XK_0, send_to_ws, {.id = 9} },
920 { MODKEY, XK_b, bar_toggle, {0} },
921 { MODKEY, XK_Tab, focus, {.id = SWM_ARG_ID_FOCUSNEXT} },
922 { MODKEY | ShiftMask, XK_Tab, focus, {.id = SWM_ARG_ID_FOCUSPREV} },
923 };
924
925 void
926 updatenumlockmask(void)
927 {
928 unsigned int i, j;
929 XModifierKeymap *modmap;
930
931 DNPRINTF(SWM_D_MISC, "updatenumlockmask\n");
932 numlockmask = 0;
933 modmap = XGetModifierMapping(display);
934 for (i = 0; i < 8; i++)
935 for (j = 0; j < modmap->max_keypermod; j++)
936 if (modmap->modifiermap[i * modmap->max_keypermod + j]
937 == XKeysymToKeycode(display, XK_Num_Lock))
938 numlockmask = (1 << i);
939
940 XFreeModifiermap(modmap);
941 }
942
943 void
944 grabkeys(void)
945 {
946 unsigned int i, j;
947 KeyCode code;
948 unsigned int modifiers[] =
949 { 0, LockMask, numlockmask, numlockmask | LockMask };
950
951 DNPRINTF(SWM_D_MISC, "grabkeys\n");
952 updatenumlockmask();
953
954 XUngrabKey(display, AnyKey, AnyModifier, root);
955 for(i = 0; i < LENGTH(keys); i++) {
956 if((code = XKeysymToKeycode(display, keys[i].keysym)))
957 for(j = 0; j < LENGTH(modifiers); j++)
958 XGrabKey(display, code,
959 keys[i].mod | modifiers[j], root,
960 True, GrabModeAsync, GrabModeAsync);
961 }
962 }
963 void
964 expose(XEvent *e)
965 {
966 DNPRINTF(SWM_D_EVENT, "expose: window: %lu\n", e->xexpose.window);
967 }
968
969 void
970 keypress(XEvent *e)
971 {
972 unsigned int i;
973 KeySym keysym;
974 XKeyEvent *ev = &e->xkey;
975
976 DNPRINTF(SWM_D_EVENT, "keypress: window: %lu\n", ev->window);
977
978 keysym = XKeycodeToKeysym(display, (KeyCode)ev->keycode, 0);
979 for(i = 0; i < LENGTH(keys); i++)
980 if(keysym == keys[i].keysym
981 && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
982 && keys[i].func)
983 keys[i].func(&(keys[i].args));
984 }
985
986 void
987 buttonpress(XEvent *e)
988 {
989 XButtonPressedEvent *ev = &e->xbutton;
990 #ifdef SWM_CLICKTOFOCUS
991 struct ws_win *win;
992 #endif
993
994
995 DNPRINTF(SWM_D_EVENT, "buttonpress: window: %lu\n", ev->window);
996
997 if (ev->window == root)
998 return;
999 if (ev->window == ws[current_ws].focus->id)
1000 return;
1001 #ifdef SWM_CLICKTOFOCUS
1002 TAILQ_FOREACH(win, &ws[current_ws].winlist, entry)
1003 if (win->id == ev->window) {
1004 /* focus in the clicked window */
1005 XSetWindowBorder(display, ev->window, 0xff0000);
1006 XSetWindowBorder(display,
1007 ws[current_ws].focus->id, 0x888888);
1008 XSetInputFocus(display, ev->window, RevertToPointerRoot,
1009 CurrentTime);
1010 ws[current_ws].focus = win;
1011 XSync(display, False);
1012 break;
1013 }
1014 #endif
1015 }
1016
1017 struct ws_win *
1018 manage_window(Window id)
1019 {
1020 struct ws_win *win;
1021
1022 TAILQ_FOREACH (win, &ws[current_ws].winlist, entry) {
1023 if (win->id == id)
1024 return (win); /* already being managed */
1025 }
1026
1027 if ((win = calloc(1, sizeof(struct ws_win))) == NULL)
1028 errx(1, "calloc: failed to allocate memory for new window");
1029
1030 win->id = id;
1031 TAILQ_INSERT_TAIL(&ws[current_ws].winlist, win, entry);
1032
1033 XSelectInput(display, id, ButtonPressMask | EnterWindowMask |
1034 FocusChangeMask | ExposureMask);
1035
1036 return win;
1037 }
1038
1039 void
1040 configurerequest(XEvent *e)
1041 {
1042 XConfigureRequestEvent *ev = &e->xconfigurerequest;
1043 Window trans;
1044 struct ws_win *win;
1045
1046 DNPRINTF(SWM_D_EVENT, "configurerequest: window: %lu\n", ev->window);
1047
1048
1049 win = manage_window(ev->window);
1050 ws[current_ws].focus = win; /* make new win focused */
1051
1052 XGetTransientForHint(display, win->id, &trans);
1053 if (trans) {
1054 win->transient = trans;
1055 DNPRINTF(SWM_D_MISC, "configurerequest: win %u transient %u\n",
1056 (unsigned)win->id, win->transient);
1057 }
1058 XGetWindowAttributes(display, win->id, &win->wa);
1059 XGetNormalHints(display, win->id, &win->sh);
1060 #if 0
1061 XClassHint ch = { 0 };
1062 if(XGetClassHint(display, win->id, &ch)) {
1063 fprintf(stderr, "class: %s name: %s\n", ch.res_class, ch.res_name);
1064 if (!strcmp(ch.res_class, "Gvim") && !strcmp(ch.res_name, "gvim")) {
1065 win->floating = 0;
1066 }
1067 if(ch.res_class)
1068 XFree(ch.res_class);
1069 if(ch.res_name)
1070 XFree(ch.res_name);
1071 }
1072 #endif
1073 stack();
1074 }
1075
1076 void
1077 configurenotify(XEvent *e)
1078 {
1079
1080 DNPRINTF(SWM_D_EVENT, "configurenotify: window: %lu\n",
1081 e->xconfigure.window);
1082 }
1083
1084 void
1085 destroynotify(XEvent *e)
1086 {
1087 struct ws_win *win;
1088 XDestroyWindowEvent *ev = &e->xdestroywindow;
1089
1090 DNPRINTF(SWM_D_EVENT, "destroynotify: window %lu\n", ev->window);
1091
1092 TAILQ_FOREACH (win, &ws[current_ws].winlist, entry) {
1093 if (ev->window == win->id) {
1094 /* find a window to focus */
1095 ws[current_ws].focus = TAILQ_PREV(win,
1096 ws_win_list, entry);
1097 if (ws[current_ws].focus == NULL)
1098 ws[current_ws].focus =
1099 TAILQ_FIRST(&ws[current_ws].winlist);
1100 if (win == ws[current_ws].focus)
1101 ws[current_ws].focus = NULL;
1102
1103 TAILQ_REMOVE(&ws[current_ws].winlist, win, entry);
1104 free(win);
1105 break;
1106 }
1107 }
1108
1109 stack();
1110 }
1111
1112 void
1113 enternotify(XEvent *e)
1114 {
1115 XCrossingEvent *ev = &e->xcrossing;
1116 struct ws_win *win;
1117
1118 DNPRINTF(SWM_D_EVENT, "enternotify: window: %lu\n", ev->window);
1119
1120 if((ev->mode != NotifyNormal || ev->detail == NotifyInferior) &&
1121 ev->window != root)
1122 return;
1123 if (ignore_enter) {
1124 /* eat event(s) to prevent autofocus */
1125 ignore_enter--;
1126 return;
1127 }
1128 TAILQ_FOREACH (win, &ws[current_ws].winlist, entry) {
1129 if (win->id == ev->window)
1130 focus_win(win);
1131 else
1132 unfocus_win(win);
1133 }
1134 }
1135
1136 void
1137 focusin(XEvent *e)
1138 {
1139 XFocusChangeEvent *ev = &e->xfocus;
1140
1141 DNPRINTF(SWM_D_EVENT, "focusin: window: %lu\n", ev->window);
1142
1143 XSync(display, False); /* not sure this helps redrawing graphic apps */
1144
1145 if (ev->window == root)
1146 return;
1147 /*
1148 * kill grab for now so that we can cut and paste , this screws up
1149 * click to focus
1150 */
1151 /*
1152 DNPRINTF(SWM_D_EVENT, "focusin: window: %lu grabbing\n", ev->window);
1153 XGrabButton(display, Button1, AnyModifier, ev->window, False,
1154 ButtonPress, GrabModeAsync, GrabModeSync, None, None);
1155 */
1156 }
1157
1158 void
1159 mappingnotify(XEvent *e)
1160 {
1161 XMappingEvent *ev = &e->xmapping;
1162
1163 DNPRINTF(SWM_D_EVENT, "mappingnotify: window: %lu\n", ev->window);
1164
1165 XRefreshKeyboardMapping(ev);
1166 if(ev->request == MappingKeyboard)
1167 grabkeys();
1168 }
1169
1170 void
1171 maprequest(XEvent *e)
1172 {
1173 DNPRINTF(SWM_D_EVENT, "maprequest: window: %lu\n",
1174 e->xmaprequest.window);
1175
1176 manage_window(e->xmaprequest.window);
1177 stack();
1178 }
1179
1180 void
1181 propertynotify(XEvent *e)
1182 {
1183 DNPRINTF(SWM_D_EVENT, "propertynotify: window: %lu\n",
1184 e->xproperty.window);
1185 }
1186
1187 void
1188 unmapnotify(XEvent *e)
1189 {
1190 DNPRINTF(SWM_D_EVENT, "unmapnotify: window: %lu\n", e->xunmap.window);
1191 }
1192
1193 void
1194 visibilitynotify(XEvent *e)
1195 {
1196 DNPRINTF(SWM_D_EVENT, "visibilitynotify: window: %lu\n", e->xvisibility.window);
1197
1198 if (e->xvisibility.window == bar_window &&
1199 e->xvisibility.state == VisibilityUnobscured)
1200 bar_print();
1201 }
1202
1203 void (*handler[LASTEvent])(XEvent *) = {
1204 [Expose] = expose,
1205 [KeyPress] = keypress,
1206 [ButtonPress] = buttonpress,
1207 [ConfigureRequest] = configurerequest,
1208 [ConfigureNotify] = configurenotify,
1209 [DestroyNotify] = destroynotify,
1210 [EnterNotify] = enternotify,
1211 [FocusIn] = focusin,
1212 [MappingNotify] = mappingnotify,
1213 [MapRequest] = maprequest,
1214 [PropertyNotify] = propertynotify,
1215 [UnmapNotify] = unmapnotify,
1216 [VisibilityNotify] = visibilitynotify,
1217 };
1218
1219 int
1220 xerror_start(Display *d, XErrorEvent *ee)
1221 {
1222 other_wm = 1;
1223 return (-1);
1224 }
1225
1226 int
1227 xerror(Display *d, XErrorEvent *ee)
1228 {
1229 fprintf(stderr, "error: %p %p\n", display, ee);
1230
1231 return (-1);
1232 }
1233
1234 int
1235 active_wm(void)
1236 {
1237 other_wm = 0;
1238 xerrorxlib = XSetErrorHandler(xerror_start);
1239
1240 /* this causes an error if some other window manager is running */
1241 XSelectInput(display, DefaultRootWindow(display),
1242 SubstructureRedirectMask);
1243 XSync(display, False);
1244 if(other_wm)
1245 return (1);
1246
1247 XSetErrorHandler(xerror);
1248 XSync(display, False);
1249 return (0);
1250 }
1251
1252 int
1253 main(int argc, char *argv[])
1254 {
1255 struct passwd *pwd;
1256 char conf[PATH_MAX], *cfile = NULL;
1257 struct stat sb;
1258 XEvent e;
1259 unsigned int i, num;
1260 Window d1, d2, *wins = NULL;
1261 XWindowAttributes wa;
1262
1263 fprintf(stderr, "Welcome to scrotwm V%s\n", SWM_VERSION);
1264 if(!setlocale(LC_CTYPE, "") || !XSupportsLocale())
1265 warnx("no locale support");
1266
1267 if(!(display = XOpenDisplay(0)))
1268 errx(1, "can not open display");
1269
1270 if (active_wm())
1271 errx(1, "other wm running");
1272
1273 screen = DefaultScreen(display);
1274 root = RootWindow(display, screen);
1275
1276 /* look for local and global conf file */
1277 pwd = getpwuid(getuid());
1278 if (pwd == NULL)
1279 errx(1, "invalid user %d", getuid());
1280
1281 snprintf(conf, sizeof conf, "%s/.%s", pwd->pw_dir, SWM_CONF_FILE);
1282 if (stat(conf, &sb) != -1) {
1283 if (S_ISREG(sb.st_mode))
1284 cfile = conf;
1285 } else {
1286 /* try global conf file */
1287 snprintf(conf, sizeof conf, "/etc/%s", SWM_CONF_FILE);
1288 if (!stat(conf, &sb))
1289 if (S_ISREG(sb.st_mode))
1290 cfile = conf;
1291 }
1292 if (cfile)
1293 conf_load(cfile);
1294
1295 /* init all workspaces */
1296 for (i = 0; i < SWM_WS_MAX; i++) {
1297 ws[i].visible = 0;
1298 ws[i].restack = 1;
1299 ws[i].focus = NULL;
1300 ws[i].g.x = 0;
1301 ws[i].g.y = 0;
1302 ws[i].g.w = DisplayWidth(display, screen) - 2;
1303 ws[i].g.h = DisplayHeight(display, screen) - 2;
1304 TAILQ_INIT(&ws[i].winlist);
1305 ws[i].cur_layout = &layouts[0];
1306 }
1307 /* make work space 1 active */
1308 ws[0].visible = 1;
1309
1310 /* grab existing windows */
1311 if (XQueryTree(display, root, &d1, &d2, &wins, &num)) {
1312 for (i = 0; i < num; i++) {
1313 if (!XGetWindowAttributes(display, wins[i], &wa)
1314 || wa.override_redirect ||
1315 XGetTransientForHint(display, wins[i], &d1))
1316 continue;
1317 manage_window(wins[i]);
1318 }
1319 if(wins)
1320 XFree(wins);
1321 }
1322 ws[0].focus = TAILQ_FIRST(&ws[0].winlist);
1323
1324 /* setup status bar */
1325 bar_setup();
1326
1327 XSelectInput(display, root, SubstructureRedirectMask |
1328 SubstructureNotifyMask | ButtonPressMask | KeyPressMask |
1329 EnterWindowMask | LeaveWindowMask | StructureNotifyMask |
1330 FocusChangeMask | PropertyChangeMask | ExposureMask);
1331
1332 grabkeys();
1333 stack();
1334
1335 while (running) {
1336 XNextEvent(display, &e);
1337 if (handler[e.type])
1338 handler[e.type](&e);
1339 }
1340
1341 XCloseDisplay(display);
1342
1343 return (0);
1344 }
spectrwm is a small dynamic tiling and reparenting window manager for X11