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 <errno.h>
  57 #include <locale.h>
  58 #include <unistd.h>
  59 #include <time.h>
  60 #include <signal.h>
  61 #include <string.h>
  62 #include <util.h>
  63 #include <pwd.h>
  64 #include <ctype.h>
  65
  66 #include <sys/types.h>
  67 #include <sys/time.h>
  68 #include <sys/stat.h>
  69 #include <sys/wait.h>
  70 #include <sys/queue.h>
  71 #include <sys/param.h>
  72 #include <sys/select.h>
  73
  74 #include <X11/cursorfont.h>
  75 #include <X11/keysym.h>
  76 #include <X11/Xatom.h>
  77 #include <X11/Xlib.h>
  78 #include <X11/Xproto.h>
  79 #include <X11/Xutil.h>
  80 #include <X11/extensions/Xrandr.h>
  81
  82 #if RANDR_MAJOR < 1
  83 #  error XRandR versions less than 1.0 are not supported
  84 #endif
  85
  86 #if RANDR_MAJOR >= 1
  87 #if RANDR_MINOR >= 2
  88 #define SWM_XRR_HAS_CRTC
  89 #endif
  90 #endif
  91
  92 /* #define SWM_DEBUG */
  93 #ifdef SWM_DEBUG
  94 #define DPRINTF(x...)           do { if (swm_debug) fprintf(stderr, x); } while(0)
  95 #define DNPRINTF(n,x...)        do { if (swm_debug & n) fprintf(stderr, x); } while(0)
  96 #define SWM_D_MISC              0x0001
  97 #define SWM_D_EVENT             0x0002
  98 #define SWM_D_WS                0x0004
  99 #define SWM_D_FOCUS             0x0008
 100 #define SWM_D_MOVE              0x0010
 101 #define SWM_D_STACK             0x0020
 102
 103 u_int32_t               swm_debug = 0
 104                             | SWM_D_MISC
 105                             | SWM_D_EVENT
 106                             | SWM_D_WS
 107                             | SWM_D_FOCUS
 108                             | SWM_D_MOVE
 109                             | SWM_D_STACK
 110                             ;
 111 #else
 112 #define DPRINTF(x...)
 113 #define DNPRINTF(n,x...)
 114 #endif
 115
 116 #define LENGTH(x)               (sizeof x / sizeof x[0])
 117 #define MODKEY                  Mod1Mask
 118 #define CLEANMASK(mask)         (mask & ~(numlockmask | LockMask))
 119
 120 #define X(r)            (r)->g.x
 121 #define Y(r)            (r)->g.y
 122 #define WIDTH(r)        (r)->g.w
 123 #define HEIGHT(r)       (r)->g.h
 124
 125 char                    **start_argv;
 126 Atom                    astate;
 127 int                     (*xerrorxlib)(Display *, XErrorEvent *);
 128 int                     other_wm;
 129 int                     running = 1;
 130 int                     xrandr_eventbase;
 131 int                     ignore_enter = 0;
 132 unsigned int            numlockmask = 0;
 133 Display                 *display;
 134
 135 int                     cycle_empty = 0;
 136 int                     cycle_visible = 0;
 137
 138 /* dialog windows */
 139 double                  dialog_ratio = .6;
 140 /* status bar */
 141 #define SWM_BAR_MAX     (128)
 142 sig_atomic_t            bar_alarm = 0;
 143 int                     bar_enabled = 1;
 144 int                     bar_verbose = 1;
 145 int                     bar_height = 0;
 146 GC                      bar_gc;
 147 XGCValues               bar_gcv;
 148 XFontStruct             *bar_fs;
 149 char                    *bar_fonts[] = {
 150                             "-*-terminus-*-*-*-*-*-*-*-*-*-*-*-*",
 151                             "-*-times-medium-r-*-*-*-*-*-*-*-*-*-*",
 152                             NULL
 153 };
 154
 155 /* terminal + args */
 156 char                            *spawn_term[] = { "xterm", NULL };
 157 char                            *spawn_menu[] = { "dmenu_run", NULL };
 158
 159 /* layout manager data */
 160 struct swm_geometry {
 161         int                     x;
 162         int                     y;
 163         int                     w;
 164         int                     h;
 165 };
 166
 167 struct swm_screen;
 168 struct workspace;
 169
 170 /* virtual "screens" */
 171 struct swm_region {
 172         TAILQ_ENTRY(swm_region) entry;
 173         struct swm_geometry     g;
 174         Window                  bar_window;
 175         struct workspace        *ws;    /* current workspace on this region */
 176         struct swm_screen       *s;     /* screen idx */
 177 };
 178 TAILQ_HEAD(swm_region_list, swm_region);
 179
 180
 181 struct ws_win {
 182         TAILQ_ENTRY(ws_win)     entry;
 183         Window                  id;
 184         struct swm_geometry     g;
 185         int                     got_focus;
 186         int                     floating;
 187         int                     transient;
 188         struct workspace        *ws;    /* always valid */
 189         struct swm_screen       *s;     /* always valid, never changes */
 190         XWindowAttributes       wa;
 191 };
 192 TAILQ_HEAD(ws_win_list, ws_win);
 193
 194 /* layout handlers */
 195 void    stack(void);
 196 void    vertical_config(struct workspace *, int);
 197 void    vertical_stack(struct workspace *, struct swm_geometry *);
 198 void    horizontal_config(struct workspace *, int);
 199 void    horizontal_stack(struct workspace *, struct swm_geometry *);
 200 void    max_stack(struct workspace *, struct swm_geometry *);
 201
 202 struct layout {
 203         void            (*l_stack)(struct workspace *, struct swm_geometry *);
 204         void            (*l_config)(struct workspace *, int);
 205 } layouts[] =  {
 206         /* stack,               configure */
 207         { vertical_stack,       vertical_config},
 208         { horizontal_stack,     horizontal_config},
 209         { max_stack,            NULL},
 210         { NULL,                 NULL},
 211 };
 212
 213 #define SWM_H_SLICE             (32)
 214 #define SWM_V_SLICE             (32)
 215
 216 /* define work spaces */
 217 struct workspace {
 218         int                     idx;            /* workspace index */
 219         int                     restack;        /* restack on switch */
 220         struct layout           *cur_layout;    /* current layout handlers */
 221         struct ws_win           *focus;         /* may be NULL */
 222         struct swm_region       *r;             /* may be NULL */
 223         struct ws_win_list      winlist;        /* list of windows in ws */
 224
 225         /* stacker state */
 226         struct {
 227                                 int horizontal_msize;
 228                                 int horizontal_mwin;
 229                                 int vertical_msize;
 230                                 int vertical_mwin;
 231         } l_state;
 232 };
 233
 234 /* physical screen mapping */
 235 #define SWM_WS_MAX              (10)            /* XXX Too small? */
 236 struct swm_screen {
 237         int                     idx;            /* screen index */
 238         struct swm_region_list  rl;     /* list of regions on this screen */
 239         Window                  root;
 240         int                     xrandr_support;
 241         struct workspace        ws[SWM_WS_MAX];
 242
 243         /* colors */
 244         unsigned long           bar_border;
 245         unsigned long           bar_color;
 246         unsigned long           bar_font_color;
 247         unsigned long           color_focus;            /* XXX should this be per ws? */
 248         unsigned long           color_unfocus;
 249 };
 250 struct swm_screen       *screens;
 251 int                     num_screens;
 252
 253 struct ws_win           *cur_focus = NULL;
 254
 255 /* args to functions */
 256 union arg {
 257         int                     id;
 258 #define SWM_ARG_ID_FOCUSNEXT    (0)
 259 #define SWM_ARG_ID_FOCUSPREV    (1)
 260 #define SWM_ARG_ID_FOCUSMAIN    (2)
 261 #define SWM_ARG_ID_SWAPNEXT     (3)
 262 #define SWM_ARG_ID_SWAPPREV     (4)
 263 #define SWM_ARG_ID_SWAPMAIN     (5)
 264 #define SWM_ARG_ID_MASTERSHRINK (6)
 265 #define SWM_ARG_ID_MASTERGROW   (7)
 266 #define SWM_ARG_ID_MASTERADD    (8)
 267 #define SWM_ARG_ID_MASTERDEL    (9)
 268 #define SWM_ARG_ID_STACKRESET   (10)
 269 #define SWM_ARG_ID_STACKINIT    (11)
 270 #define SWM_ARG_ID_CYCLEWS_UP   (12)
 271 #define SWM_ARG_ID_CYCLEWS_DOWN (13)
 272         char                    **argv;
 273 };
 274
 275 unsigned long
 276 name_to_color(char *colorname)
 277 {
 278         Colormap                cmap;
 279         Status                  status;
 280         XColor                  screen_def, exact_def;
 281         unsigned long           result = 0;
 282         char                    cname[32] = "#";
 283
 284         cmap = DefaultColormap(display, screens[0].idx);
 285         status = XAllocNamedColor(display, cmap, colorname,
 286             &screen_def, &exact_def);
 287         if (!status) {
 288                 strlcat(cname, colorname + 2, sizeof cname - 1);
 289                 status = XAllocNamedColor(display, cmap, cname, &screen_def,
 290                     &exact_def);
 291         }
 292         if (status)
 293                 result = screen_def.pixel;
 294         else
 295                 fprintf(stderr, "color '%s' not found.\n", colorname);
 296
 297         return (result);
 298 }
 299
 300 int
 301 varmatch(char *var, char *name, int *index)
 302 {
 303         char                    *p, buf[5];
 304         int                     i;
 305
 306         i = strncmp(var, name, 255);
 307         if (index == NULL)
 308                 return (i);
 309
 310         *index = -1;
 311         if (i <= 0)
 312                 return (i);
 313         p = var + strlen(name);
 314         if (*p++ != '[')
 315                 return (i);
 316         bzero(buf, sizeof buf);
 317         i = 0;
 318         while (isdigit(*p) && i < sizeof buf)
 319                 buf[i++] = *p++;
 320         if (i == 0 || i >= sizeof buf || *p != ']')
 321                 return (1);
 322         *index = strtonum(buf, 0, 99, NULL);
 323         return (0);
 324 }
 325
 326 /* conf file stuff */
 327 #define SWM_CONF_WS     "\n= \t"
 328 #define SWM_CONF_FILE   "scrotwm.conf"
 329 int
 330 conf_load(char *filename)
 331 {
 332         FILE                    *config;
 333         char                    *line, *cp, *var, *val;
 334         size_t                  len, lineno = 0;
 335         int                     i, sc;
 336
 337         DNPRINTF(SWM_D_MISC, "conf_load: filename %s\n", filename);
 338
 339         if (filename == NULL)
 340                 return (1);
 341
 342         if ((config = fopen(filename, "r")) == NULL)
 343                 return (1);
 344
 345         for (sc = ScreenCount(display);;) {
 346                 if ((line = fparseln(config, &len, &lineno, NULL, 0)) == NULL)
 347                         if (feof(config))
 348                                 break;
 349                 cp = line;
 350                 cp += (long)strspn(cp, SWM_CONF_WS);
 351                 if (cp[0] == '\0') {
 352                         /* empty line */
 353                         free(line);
 354                         continue;
 355                 }
 356                 if ((var = strsep(&cp, SWM_CONF_WS)) == NULL || cp == NULL)
 357                         break;
 358                 cp += (long)strspn(cp, SWM_CONF_WS);
 359                 if ((val = strsep(&cp, SWM_CONF_WS)) == NULL)
 360                         break;
 361
 362                 DNPRINTF(SWM_D_MISC, "conf_load: %s=%s\n",var ,val);
 363                 switch (var[0]) {
 364                 case 'b':
 365                         if (!strncmp(var, "bar_enabled", strlen("bar_enabled")))
 366                                 bar_enabled = atoi(val);
 367                         else if (!varmatch(var, "bar_border", &i))
 368                                 if (i > 0 && i <= sc)
 369                                         screens[i - 1].bar_border =
 370                                             name_to_color(val);
 371                                 else if (i == -1)
 372                                         for (i = 0; i < sc; i++)
 373                                                 screens[i].bar_border =
 374                                                     name_to_color(val);
 375                                  else
 376                                         goto badidx;
 377                         else if (!varmatch(var, "bar_color", &i))
 378                                 if (i > 0 && i <= sc)
 379                                         screens[i - 1].bar_color =
 380                                             name_to_color(val);
 381                                 else if (i == -1)
 382                                         for (i = 0; i < sc; i++)
 383                                                 screens[i].bar_color =
 384                                                     name_to_color(val);
 385                                 else
 386                                         goto badidx;
 387                         else if (!varmatch(var, "bar_font_color", &i))
 388                                 if (i > 0 && i <= sc)
 389                                         screens[i - 1].bar_font_color =
 390                                                 name_to_color(val);
 391                                 else if (i == -1)
 392                                         for (i = 0; i < sc; i++)
 393                                                 screens[i].bar_font_color =
 394                                                     name_to_color(val);
 395                                 else
 396                                         goto badidx;
 397
 398                         else if (!strncmp(var, "bar_font", strlen("bar_font")))
 399                                 asprintf(&bar_fonts[0], "%s", val);
 400                         else
 401                                 goto bad;
 402                         break;
 403
 404                 case 'c':
 405                         if (!varmatch(var, "color_focus", &i))
 406                                 if (i > 0 && i <= sc)
 407                                         screens[i - 1].color_focus =
 408                                             name_to_color(val);
 409                                 else if (i == -1)
 410                                         for (i = 0; i < sc; i++)
 411                                                 screens[i].color_focus =
 412                                                     name_to_color(val);
 413                                 else
 414                                         goto badidx;
 415                         else if (!varmatch(var, "color_unfocus", &i))
 416                                 if (i > 0 && i <= sc)
 417                                         screens[i - 1].color_unfocus =
 418                                             name_to_color(val);
 419                                 else if (i == -1)
 420                                         for (i = 0; i < sc; i++)
 421                                                 screens[i].color_unfocus =
 422                                                     name_to_color(val);
 423                                 else
 424                                         goto badidx;
 425                         else if (!strncmp(var, "cycle_empty", strlen("cycle_empty")))
 426                                 cycle_visible = atoi(val);
 427                         else if (!strncmp(var, "cycle_visible", strlen("cycle_visible")))
 428                                 cycle_visible = atoi(val);
 429                         else
 430                                 goto bad;
 431                         break;
 432
 433                 case 'd':
 434                         if (!strncmp(var, "dialog_ratio",
 435                             strlen("dialog_ratio"))) {
 436                                 dialog_ratio = atof(val);
 437                                 if (dialog_ratio > 1.0 || dialog_ratio <= .3)
 438                                         dialog_ratio = .6;
 439                         } else
 440                                 goto bad;
 441                         break;
 442
 443                 case 's':
 444                         if (!strncmp(var, "spawn_term", strlen("spawn_term")))
 445                                 asprintf(&spawn_term[0], "%s", val); /* XXX args? */
 446                         break;
 447                 default:
 448                         goto bad;
 449                 }
 450                 free(line);
 451         }
 452
 453         fclose(config);
 454         return (0);
 455 bad:
 456         errx(1, "invalid conf file entry: %s=%s", var, val);
 457 badidx:
 458         errx(1, "invalid screen index: %s out of bounds", var);
 459 }
 460
 461 void
 462 bar_print(struct swm_region *r, char *s)
 463 {
 464         XClearWindow(display, r->bar_window);
 465         XSetForeground(display, bar_gc, r->s->bar_font_color);
 466         XDrawString(display, r->bar_window, bar_gc, 4, bar_fs->ascent, s,
 467             strlen(s));
 468 }
 469
 470 void
 471 bar_update(void)
 472 {
 473         time_t                  tmt;
 474         struct tm               tm;
 475         struct swm_region       *r;
 476         int                     i, x;
 477         char                    s[SWM_BAR_MAX];
 478         char                    e[SWM_BAR_MAX];
 479
 480         if (bar_enabled == 0)
 481                 return;
 482
 483         time(&tmt);
 484         localtime_r(&tmt, &tm);
 485         strftime(s, sizeof s, "%a %b %d %R %Z %Y", &tm);
 486         for (i = 0; i < ScreenCount(display); i++) {
 487                 x = 1;
 488                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
 489                         snprintf(e, sizeof e, "%s     %d:%d",
 490                             s, x++, r->ws->idx + 1);
 491                         bar_print(r, e);
 492                 }
 493         }
 494         XSync(display, False);
 495         alarm(60);
 496 }
 497
 498 void
 499 bar_signal(int sig)
 500 {
 501         bar_alarm = 1;
 502 }
 503
 504 void
 505 bar_toggle(struct swm_region *r, union arg *args)
 506 {
 507         struct swm_region       *tmpr;
 508         int                     i, j, sc = ScreenCount(display);
 509
 510         DNPRINTF(SWM_D_MISC, "bar_toggle\n");
 511
 512         if (bar_enabled) {
 513                 for (i = 0; i < sc; i++)
 514                         TAILQ_FOREACH(tmpr, &screens[i].rl, entry)
 515                                 XUnmapWindow(display, tmpr->bar_window);
 516         } else {
 517                 for (i = 0; i < sc; i++)
 518                         TAILQ_FOREACH(tmpr, &screens[i].rl, entry)
 519                                 XMapRaised(display, tmpr->bar_window);
 520         }
 521         bar_enabled = !bar_enabled;
 522         XSync(display, False);
 523         for (i = 0; i < sc; i++)
 524                 for (j = 0; j < SWM_WS_MAX; j++)
 525                         screens[i].ws[j].restack = 1;
 526
 527         stack();
 528         /* must be after stack */
 529         for (i = 0; i < sc; i++)
 530                 TAILQ_FOREACH(tmpr, &screens[i].rl, entry)
 531                         bar_update();
 532 }
 533
 534 void
 535 bar_setup(struct swm_region *r)
 536 {
 537         int                     i;
 538
 539         for (i = 0; bar_fonts[i] != NULL; i++) {
 540                 bar_fs = XLoadQueryFont(display, bar_fonts[i]);
 541                 if (bar_fs)
 542                         break;
 543         }
 544         if (bar_fonts[i] == NULL)
 545                         errx(1, "couldn't load font");
 546         bar_height = bar_fs->ascent + bar_fs->descent + 3;
 547
 548         r->bar_window = XCreateSimpleWindow(display,
 549             r->s->root, X(r), Y(r), WIDTH(r) - 2, bar_height - 2,
 550             1, r->s->bar_border, r->s->bar_color);
 551         bar_gc = XCreateGC(display, r->bar_window, 0, &bar_gcv);
 552         XSetFont(display, bar_gc, bar_fs->fid);
 553         XSelectInput(display, r->bar_window, VisibilityChangeMask);
 554         if (bar_enabled)
 555                 XMapRaised(display, r->bar_window);
 556         DNPRINTF(SWM_D_MISC, "bar_setup: bar_window %lu\n", r->bar_window);
 557
 558         if (signal(SIGALRM, bar_signal) == SIG_ERR)
 559                 err(1, "could not install bar_signal");
 560         bar_update();
 561 }
 562
 563 void
 564 bar_refresh(void)
 565 {
 566         XSetWindowAttributes    wa;
 567         struct swm_region       *r;
 568         int                     i;
 569
 570         bzero(&wa, sizeof wa);
 571         for (i = 0; i < ScreenCount(display); i++)
 572                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
 573                         wa.border_pixel = screens[i].bar_border;
 574                         wa.background_pixel = screens[i].bar_color;
 575                         XChangeWindowAttributes(display, r->bar_window,
 576                             CWBackPixel | CWBorderPixel, &wa);
 577                 }
 578         bar_update();
 579 }
 580
 581 void
 582 config_win(struct ws_win *win)
 583 {
 584         XConfigureEvent         ce;
 585
 586         DNPRINTF(SWM_D_MISC, "config_win: win %lu x %d y %d w %d h %d\n",
 587             win->id, win->g.x, win->g.y, win->g.w, win->g.h);
 588         ce.type = ConfigureNotify;
 589         ce.display = display;
 590         ce.event = win->id;
 591         ce.window = win->id;
 592         ce.x = win->g.x;
 593         ce.y = win->g.y;
 594         ce.width = win->g.w;
 595         ce.height = win->g.h;
 596         ce.border_width = 1; /* XXX store this! */
 597         ce.above = None;
 598         ce.override_redirect = False;
 599         XSendEvent(display, win->id, False, StructureNotifyMask, (XEvent *)&ce);
 600 }
 601
 602 int
 603 count_win(struct workspace *ws, int count_transient)
 604 {
 605         struct ws_win           *win;
 606         int                     count = 0;
 607
 608         TAILQ_FOREACH(win, &ws->winlist, entry) {
 609                 if (count_transient == 0 && win->floating)
 610                         continue;
 611                 if (count_transient == 0 && win->transient)
 612                         continue;
 613                 count++;
 614         }
 615         DNPRINTF(SWM_D_MISC, "count_win: %d\n", count);
 616
 617         return (count);
 618 }
 619
 620 void
 621 quit(struct swm_region *r, union arg *args)
 622 {
 623         DNPRINTF(SWM_D_MISC, "quit\n");
 624         running = 0;
 625 }
 626
 627 void
 628 restart(struct swm_region *r, union arg *args)
 629 {
 630         DNPRINTF(SWM_D_MISC, "restart: %s\n", start_argv[0]);
 631
 632         /* disable alarm because the following code may not be interrupted */
 633         alarm(0);
 634         if (signal(SIGALRM, SIG_IGN) == SIG_ERR)
 635                 errx(1, "can't disable alarm");
 636
 637         XCloseDisplay(display);
 638         execvp(start_argv[0], start_argv);
 639         fprintf(stderr, "execvp failed\n");
 640         perror(" failed");
 641         quit(NULL, NULL);
 642 }
 643
 644 struct swm_region *
 645 root_to_region(Window root)
 646 {
 647         struct swm_region       *r;
 648         Window                  rr, cr;
 649         int                     i, x, y, wx, wy;
 650         unsigned int            mask;
 651
 652         for (i = 0; i < ScreenCount(display); i++)
 653                 if (screens[i].root == root)
 654                         break;
 655
 656         if (XQueryPointer(display, screens[i].root,
 657             &rr, &cr, &x, &y, &wx, &wy, &mask) == False) {
 658                 /* if we can't query the pointer, grab the first region */
 659                 r = TAILQ_FIRST(&screens[i].rl);
 660         } else {
 661                 /* otherwise, choose a region based on pointer location */
 662                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
 663                         if (x > X(r) && x < X(r) + WIDTH(r) &&
 664                             y > Y(r) && y < Y(r) + HEIGHT(r))
 665                                 break;
 666                 }
 667
 668                 if (r == NULL)
 669                         r = TAILQ_FIRST(&screens[i].rl);
 670         }
 671         return (r);
 672 }
 673
 674 struct ws_win *
 675 find_window(Window id)
 676 {
 677         struct ws_win           *win;
 678         int                     i, j;
 679
 680         for (i = 0; i < ScreenCount(display); i++)
 681                 for (j = 0; j < SWM_WS_MAX; j++)
 682                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
 683                                 if (id == win->id)
 684                                         return (win);
 685         return (NULL);
 686 }
 687
 688 void
 689 spawn(struct swm_region *r, union arg *args)
 690 {
 691         DNPRINTF(SWM_D_MISC, "spawn: %s\n", args->argv[0]);
 692         /*
 693          * The double-fork construct avoids zombie processes and keeps the code
 694          * clean from stupid signal handlers.
 695          */
 696         if (fork() == 0) {
 697                 if (fork() == 0) {
 698                         if (display)
 699                                 close(ConnectionNumber(display));
 700                         setsid();
 701                         execvp(args->argv[0], args->argv);
 702                         fprintf(stderr, "execvp failed\n");
 703                         perror(" failed");
 704                 }
 705                 exit(0);
 706         }
 707         wait(0);
 708 }
 709
 710 void
 711 unfocus_all(void)
 712 {
 713         struct ws_win           *win;
 714         int                     i, j;
 715
 716         DNPRINTF(SWM_D_FOCUS, "unfocus_all:\n");
 717
 718         for (i = 0; i < ScreenCount(display); i++)
 719                 for (j = 0; j < SWM_WS_MAX; j++)
 720                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry) {
 721                                 if (win->ws->r == NULL)
 722                                         continue;
 723                                 XSetWindowBorder(display, win->id,
 724                                     win->ws->r->s->color_unfocus);
 725                                 win->got_focus = 0;
 726                                 win->ws->focus = NULL;
 727                                 cur_focus = NULL;
 728                         }
 729 }
 730
 731 void
 732 focus_win(struct ws_win *win)
 733 {
 734         DNPRINTF(SWM_D_FOCUS, "focus_win: id: %lu\n", win ? win->id : 0);
 735
 736         if (win == NULL)
 737                 return;
 738
 739         unfocus_all();
 740         win->ws->focus = win;
 741         if (win->ws->r != NULL) {
 742                 cur_focus = win;
 743                 if (!win->got_focus)
 744                         XSetWindowBorder(display, win->id,
 745                             win->ws->r->s->color_focus);
 746                 win->got_focus = 1;
 747                 XSetInputFocus(display, win->id,
 748                     RevertToPointerRoot, CurrentTime);
 749         }
 750 }
 751
 752 void
 753 switchws(struct swm_region *r, union arg *args)
 754 {
 755         int                     wsid = args->id;
 756         struct swm_region       *this_r, *other_r;
 757         struct ws_win           *win;
 758         struct workspace        *new_ws, *old_ws;
 759
 760         this_r = r;
 761         old_ws = this_r->ws;
 762         new_ws = &this_r->s->ws[wsid];
 763
 764         DNPRINTF(SWM_D_WS, "switchws screen %d region %dx%d+%d+%d: "
 765             "%d -> %d\n", r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r),
 766             old_ws->idx, wsid);
 767
 768         if (new_ws == old_ws)
 769                 return;
 770
 771         other_r = new_ws->r;
 772         if (!other_r) {
 773                 /* if the other workspace is hidden, switch windows */
 774                 /* map new window first to prevent ugly blinking */
 775                 TAILQ_FOREACH(win, &new_ws->winlist, entry)
 776                         XMapRaised(display, win->id);
 777
 778                 TAILQ_FOREACH(win, &old_ws->winlist, entry)
 779                         XUnmapWindow(display, win->id);
 780
 781                 old_ws->r = NULL;
 782                 old_ws->restack = 1;
 783         } else {
 784                 other_r->ws = old_ws;
 785                 old_ws->r = other_r;
 786         }
 787         this_r->ws = new_ws;
 788         new_ws->r = this_r;
 789
 790         ignore_enter = 1;
 791         /* set focus */
 792         if (new_ws->focus)
 793                 focus_win(new_ws->focus);
 794         stack();
 795         bar_update();
 796 }
 797
 798 void
 799 cyclews(struct swm_region *r, union arg *args)
 800 {
 801         union                   arg a;
 802         struct swm_screen       *s = r->s;
 803
 804         DNPRINTF(SWM_D_WS, "cyclews id %d "
 805             "in screen %d region %dx%d+%d+%d ws %d\n", args->id,
 806             r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
 807
 808         a.id = r->ws->idx;
 809
 810         do {
 811                 switch (args->id) {
 812                 case SWM_ARG_ID_CYCLEWS_UP:
 813                         if (a.id < SWM_WS_MAX - 1)
 814                                 a.id++;
 815                         else
 816                                 a.id = 0;
 817                         break;
 818                 case SWM_ARG_ID_CYCLEWS_DOWN:
 819                         if (a.id > 0)
 820                                 a.id--;
 821                         else
 822                                 a.id = SWM_WS_MAX - 1;
 823                         break;
 824                 default:
 825                         return;
 826                 };
 827
 828                 if (cycle_empty == 0 && TAILQ_EMPTY(&s->ws[a.id].winlist))
 829                         continue;
 830                 if (cycle_visible == 0 && s->ws[a.id].r != NULL)
 831                         continue;
 832
 833                 switchws(r, &a);
 834         } while (a.id != r->ws->idx);
 835 }
 836
 837 void
 838 swapwin(struct swm_region *r, union arg *args)
 839 {
 840         struct ws_win           *target;
 841         struct ws_win_list      *wl;
 842
 843
 844         DNPRINTF(SWM_D_WS, "swapwin id %d "
 845             "in screen %d region %dx%d+%d+%d ws %d\n", args->id,
 846             r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
 847         if (cur_focus == NULL)
 848                 return;
 849
 850         wl = &cur_focus->ws->winlist;
 851
 852         switch (args->id) {
 853         case SWM_ARG_ID_SWAPPREV:
 854                 target = TAILQ_PREV(cur_focus, ws_win_list, entry);
 855                 TAILQ_REMOVE(wl, cur_focus, entry);
 856                 if (target == NULL)
 857                         TAILQ_INSERT_TAIL(wl, cur_focus, entry);
 858                 else
 859                         TAILQ_INSERT_BEFORE(target, cur_focus, entry);
 860                 break;
 861         case SWM_ARG_ID_SWAPNEXT:
 862                 target = TAILQ_NEXT(cur_focus, entry);
 863                 TAILQ_REMOVE(wl, cur_focus, entry);
 864                 if (target == NULL)
 865                         TAILQ_INSERT_HEAD(wl, cur_focus, entry);
 866                 else
 867                         TAILQ_INSERT_AFTER(wl, target, cur_focus, entry);
 868                 break;
 869         case SWM_ARG_ID_SWAPMAIN:
 870                 target = TAILQ_FIRST(wl);
 871                 if (target == cur_focus)
 872                         return;
 873                 TAILQ_REMOVE(wl, target, entry);
 874                 TAILQ_INSERT_BEFORE(cur_focus, target, entry);
 875                 TAILQ_REMOVE(wl, cur_focus, entry);
 876                 TAILQ_INSERT_HEAD(wl, cur_focus, entry);
 877                 break;
 878         default:
 879                 DNPRINTF(SWM_D_MOVE, "invalid id: %d\n", args->id);
 880                 return;
 881         }
 882
 883         ignore_enter = 2;
 884         stack();
 885 }
 886
 887 void
 888 focus(struct swm_region *r, union arg *args)
 889 {
 890         struct ws_win           *winfocus, *winlostfocus;
 891         struct ws_win_list      *wl;
 892
 893         DNPRINTF(SWM_D_FOCUS, "focus: id %d\n", args->id);
 894         if (cur_focus == NULL)
 895                 return;
 896
 897         wl = &cur_focus->ws->winlist;
 898
 899         winlostfocus = cur_focus;
 900
 901         switch (args->id) {
 902         case SWM_ARG_ID_FOCUSPREV:
 903                 winfocus = TAILQ_PREV(cur_focus, ws_win_list, entry);
 904                 if (winfocus == NULL)
 905                         winfocus = TAILQ_LAST(wl, ws_win_list);
 906                 break;
 907
 908         case SWM_ARG_ID_FOCUSNEXT:
 909                 winfocus = TAILQ_NEXT(cur_focus, entry);
 910                 if (winfocus == NULL)
 911                         winfocus = TAILQ_FIRST(wl);
 912                 break;
 913
 914         case SWM_ARG_ID_FOCUSMAIN:
 915                 winfocus = TAILQ_FIRST(wl);
 916                 break;
 917
 918         default:
 919                 return;
 920         }
 921
 922         if (winfocus == winlostfocus)
 923                 return;
 924
 925         focus_win(winfocus);
 926         XSync(display, False);
 927 }
 928
 929 void
 930 cycle_layout(struct swm_region *r, union arg *args)
 931 {
 932         struct workspace        *ws = r->ws;
 933
 934         DNPRINTF(SWM_D_EVENT, "cycle_layout: workspace: %d\n", ws->idx);
 935
 936         ws->cur_layout++;
 937         if (ws->cur_layout->l_stack == NULL)
 938                 ws->cur_layout = &layouts[0];
 939         ignore_enter = 1;
 940
 941         stack();
 942 }
 943
 944 void
 945 stack_config(struct swm_region *r, union arg *args)
 946 {
 947         struct workspace        *ws = r->ws;
 948
 949         DNPRINTF(SWM_D_STACK, "stack_config for workspace %d (id %d\n",
 950             args->id, ws->idx);
 951
 952         if (ws->cur_layout->l_config != NULL)
 953                 ws->cur_layout->l_config(ws, args->id);
 954
 955         if (args->id != SWM_ARG_ID_STACKINIT);
 956                 stack();
 957 }
 958
 959 void
 960 stack(void) {
 961         struct swm_geometry     g;
 962         struct swm_region       *r;
 963         int                     i, j;
 964
 965         DNPRINTF(SWM_D_STACK, "stack\n");
 966
 967         for (i = 0; i < ScreenCount(display); i++) {
 968                 j = 0;
 969                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
 970                         DNPRINTF(SWM_D_STACK, "stacking workspace %d "
 971                             "(screen %d, region %d)\n", r->ws->idx, i, j++);
 972
 973                         /* start with screen geometry, adjust for bar */
 974                         g = r->g;
 975                         g.w -= 2;
 976                         g.h -= 2;
 977                         if (bar_enabled) {
 978                                 g.y += bar_height;
 979                                 g.h -= bar_height;
 980                         }
 981
 982                         r->ws->restack = 0;
 983                         r->ws->cur_layout->l_stack(r->ws, &g);
 984                 }
 985         }
 986         XSync(display, False);
 987 }
 988
 989 void
 990 stack_floater(struct ws_win *win, struct swm_region *r)
 991 {
 992         unsigned int            mask;
 993         XWindowChanges          wc;
 994
 995         bzero(&wc, sizeof wc);
 996         mask = CWX | CWY | CWBorderWidth | CWWidth | CWHeight;
 997         wc.border_width = 1;
 998         if (win->transient) {
 999                 win->g.w = (double)WIDTH(r) * dialog_ratio;
1000                 win->g.h = (double)HEIGHT(r) * dialog_ratio;
1001         }
1002         wc.width = win->g.w;
1003         wc.height = win->g.h;
1004         wc.x = (WIDTH(r) - win->g.w) / 2;
1005         wc.y = (HEIGHT(r) - win->g.h) / 2;
1006
1007         DNPRINTF(SWM_D_STACK, "stack_floater: win %lu x %d y %d w %d h %d\n",
1008             win->id, wc.x, wc.y, wc.width, wc.height);
1009
1010         XConfigureWindow(display, win->id, mask, &wc);
1011 }
1012
1013
1014 void
1015 vertical_config(struct workspace *ws, int id)
1016 {
1017         DNPRINTF(SWM_D_STACK, "vertical_resize: workspace: %d\n", ws->idx);
1018
1019         switch (id) {
1020         case SWM_ARG_ID_STACKRESET:
1021         case SWM_ARG_ID_STACKINIT:
1022                 ws->l_state.vertical_msize = SWM_V_SLICE / 2;
1023                 ws->l_state.vertical_mwin = 1;
1024                 break;
1025         case SWM_ARG_ID_MASTERSHRINK:
1026                 if (ws->l_state.vertical_msize > 1)
1027                         ws->l_state.vertical_msize--;
1028                 break;
1029         case SWM_ARG_ID_MASTERGROW:
1030                 if (ws->l_state.vertical_msize < SWM_V_SLICE - 1)
1031                         ws->l_state.vertical_msize++;
1032                 break;
1033         case SWM_ARG_ID_MASTERADD:
1034                 ws->l_state.vertical_mwin++;
1035                 break;
1036         case SWM_ARG_ID_MASTERDEL:
1037                 if (ws->l_state.vertical_mwin > 0)
1038                         ws->l_state.vertical_mwin--;
1039                 break;
1040         default:
1041                 return;
1042         }
1043 }
1044
1045 void
1046 vertical_stack(struct workspace *ws, struct swm_geometry *g) {
1047         XWindowChanges          wc;
1048         struct swm_geometry     gg = *g;
1049         struct ws_win           *win, *winfocus;
1050         int                     i, j, split, colno, hrh, winno, main_width;
1051         unsigned int            mask;
1052
1053         DNPRINTF(SWM_D_STACK, "vertical_stack: workspace: %d\n", ws->idx);
1054
1055         if ((winno = count_win(ws, 0)) == 0)
1056                 return;
1057
1058         if (ws->focus == NULL)
1059                 ws->focus = TAILQ_FIRST(&ws->winlist);
1060         winfocus = cur_focus ? cur_focus : ws->focus;
1061
1062         if (ws->l_state.vertical_mwin &&
1063             winno > ws->l_state.vertical_mwin) {
1064                 split = ws->l_state.vertical_mwin;
1065                 colno = split;
1066                 main_width = (g->w / SWM_V_SLICE) *
1067                    ws->l_state.vertical_msize;
1068                 gg.w = main_width;
1069         } else {
1070                 colno = winno;
1071                 split = 0;
1072         }
1073         hrh = g->h / colno;
1074         gg.h = hrh - 2;
1075
1076         i = j = 0;
1077         TAILQ_FOREACH(win, &ws->winlist, entry) {
1078                 if (split && i == split) {
1079                         colno = winno - split;
1080                         hrh = (g->h / colno);
1081                         gg.x += main_width + 2;
1082                         gg.w = g->w - (main_width + 2);
1083                         gg.h = hrh - 2;
1084                         j = 0;
1085                 }
1086                 if (j == colno - 1)
1087                         gg.h = (hrh + (g->h - (colno * hrh)));
1088
1089                 if (j == 0)
1090                         gg.y = g->y;
1091                 else
1092                         gg.y += hrh;
1093
1094
1095                 if (win->transient != 0 || win->floating != 0)
1096                         stack_floater(win, ws->r);
1097                 else {
1098                         bzero(&wc, sizeof wc);
1099                         wc.border_width = 1;
1100                         win->g.x = wc.x = gg.x;
1101                         win->g.y = wc.y = gg.y;
1102                         win->g.w = wc.width = gg.w;
1103                         win->g.h = wc.height = gg.h;
1104                         mask = CWX | CWY | CWWidth | CWHeight | CWBorderWidth;
1105                         XConfigureWindow(display, win->id, mask, &wc);
1106                 }
1107
1108                 XMapRaised(display, win->id);
1109                 i++;
1110                 j++;
1111         }
1112
1113         if (winfocus)
1114                 focus_win(winfocus); /* has to be done outside of the loop */
1115 }
1116
1117
1118 void
1119 horizontal_config(struct workspace *ws, int id)
1120 {
1121         DNPRINTF(SWM_D_STACK, "horizontal_config: workspace: %d\n", ws->idx);
1122
1123         switch (id) {
1124         case SWM_ARG_ID_STACKRESET:
1125         case SWM_ARG_ID_STACKINIT:
1126                 ws->l_state.horizontal_mwin = 1;
1127                 ws->l_state.horizontal_msize = SWM_H_SLICE / 2;
1128                 break;
1129         case SWM_ARG_ID_MASTERSHRINK:
1130                 if (ws->l_state.horizontal_msize > 1)
1131                         ws->l_state.horizontal_msize--;
1132                 break;
1133         case SWM_ARG_ID_MASTERGROW:
1134                 if (ws->l_state.horizontal_msize < SWM_H_SLICE - 1)
1135                         ws->l_state.horizontal_msize++;
1136                 break;
1137         case SWM_ARG_ID_MASTERADD:
1138                 ws->l_state.horizontal_mwin++;
1139                 break;
1140         case SWM_ARG_ID_MASTERDEL:
1141                 if (ws->l_state.horizontal_mwin > 0)
1142                         ws->l_state.horizontal_mwin--;
1143                 break;
1144         default:
1145                 return;
1146         }
1147 }
1148
1149 void
1150 horizontal_stack(struct workspace *ws, struct swm_geometry *g) {
1151         XWindowChanges          wc;
1152         struct swm_geometry     gg = *g;
1153         struct ws_win           *win, *winfocus;
1154         int                     i, j, split, rowno, hrw, winno, main_height;
1155         unsigned int            mask;
1156
1157         DNPRINTF(SWM_D_STACK, "horizontal_stack: workspace: %d\n", ws->idx);
1158
1159         if ((winno = count_win(ws, 0)) == 0)
1160                 return;
1161
1162         if (ws->focus == NULL)
1163                 ws->focus = TAILQ_FIRST(&ws->winlist);
1164         winfocus = cur_focus ? cur_focus : ws->focus;
1165
1166         if (ws->l_state.horizontal_mwin &&
1167             winno > ws->l_state.horizontal_mwin) {
1168                 split = ws->l_state.horizontal_mwin;
1169                 rowno = split;
1170                 main_height = (g->h / SWM_V_SLICE) *
1171                    ws->l_state.horizontal_msize;
1172                 gg.h = main_height;
1173         } else {
1174                 rowno = winno;
1175                 split = 0;
1176         }
1177         hrw = g->w / rowno;
1178         gg.w = hrw - 2;
1179
1180         i = j = 0;
1181         TAILQ_FOREACH(win, &ws->winlist, entry) {
1182                 if (split && i == split) {
1183                         rowno = winno - split;
1184                         hrw = (g->w / rowno);
1185                         gg.y += main_height + 2;
1186                         gg.h = g->h - (main_height + 2);
1187                         gg.w = hrw - 2;
1188                         j = 0;
1189                 }
1190                 if (j == rowno - 1)
1191                         gg.w = (hrw + (g->w - (rowno * hrw)));
1192
1193                 if (j == 0)
1194                         gg.x = g->x;
1195                 else
1196                         gg.x += hrw;
1197
1198                 if (win->transient != 0 || win->floating != 0)
1199                         stack_floater(win, ws->r);
1200                 else {
1201                         bzero(&wc, sizeof wc);
1202                         wc.border_width = 1;
1203                         win->g.x = wc.x = gg.x;
1204                         win->g.y = wc.y = gg.y;
1205                         win->g.w = wc.width = gg.w;
1206                         win->g.h = wc.height = gg.h;
1207                         mask = CWX | CWY | CWWidth | CWHeight | CWBorderWidth;
1208                         XConfigureWindow(display, win->id, mask, &wc);
1209                 }
1210
1211                 XMapRaised(display, win->id);
1212                 j++;
1213                 i++;
1214         }
1215
1216         if (winfocus)
1217                 focus_win(winfocus); /* this has to be done outside of the loop */
1218 }
1219
1220 /* fullscreen view */
1221 void
1222 max_stack(struct workspace *ws, struct swm_geometry *g) {
1223         XWindowChanges          wc;
1224         struct swm_geometry     gg = *g;
1225         struct ws_win           *win, *winfocus;
1226         unsigned int            mask;
1227
1228         DNPRINTF(SWM_D_STACK, "max_stack: workspace: %d\n", ws->idx);
1229
1230         if (count_win(ws, 0) == 0)
1231                 return;
1232
1233         if (ws->focus == NULL)
1234                 ws->focus = TAILQ_FIRST(&ws->winlist);
1235         winfocus = cur_focus ? cur_focus : ws->focus;
1236
1237         TAILQ_FOREACH(win, &ws->winlist, entry) {
1238                 if (win->transient != 0 || win->floating != 0) {
1239                         if (win == ws->focus) {
1240                                 /* XXX maximize? */
1241                                 stack_floater(win, ws->r);
1242                                 XMapRaised(display, win->id);
1243                         } else
1244                                 XUnmapWindow(display, win->id);
1245                 } else {
1246                         bzero(&wc, sizeof wc);
1247                         wc.border_width = 1;
1248                         win->g.x = wc.x = gg.x;
1249                         win->g.y = wc.y = gg.y;
1250                         win->g.w = wc.width = gg.w;
1251                         win->g.h = wc.height = gg.h;
1252                         mask = CWX | CWY | CWWidth | CWHeight | CWBorderWidth;
1253                         XConfigureWindow(display, win->id, mask, &wc);
1254
1255                         if (win == ws->focus) {
1256                                 XMapRaised(display, win->id);
1257                         } else
1258                                 XUnmapWindow(display, win->id);
1259                 }
1260         }
1261
1262         if (winfocus)
1263                 focus_win(winfocus); /* has to be done outside of the loop */
1264 }
1265
1266 void
1267 send_to_ws(struct swm_region *r, union arg *args)
1268 {
1269         int                     wsid = args->id;
1270         struct ws_win           *win = cur_focus;
1271         struct workspace        *ws, *nws;
1272
1273         DNPRINTF(SWM_D_MOVE, "send_to_ws: win: %lu\n", win->id);
1274
1275         ws = win->ws;
1276         nws = &win->s->ws[wsid];
1277
1278         XUnmapWindow(display, win->id);
1279
1280         /* find a window to focus */
1281         ws->focus = TAILQ_PREV(win, ws_win_list, entry);
1282         if (ws->focus == NULL)
1283                 ws->focus = TAILQ_FIRST(&ws->winlist);
1284         if (ws->focus == win)
1285                 ws->focus = NULL;
1286
1287         TAILQ_REMOVE(&ws->winlist, win, entry);
1288
1289         TAILQ_INSERT_TAIL(&nws->winlist, win, entry);
1290         win->ws = nws;
1291
1292         if (count_win(nws, 1) == 1)
1293                 nws->focus = win;
1294         ws->restack = 1;
1295         nws->restack = 1;
1296
1297         stack();
1298 }
1299
1300 /* key definitions */
1301 struct key {
1302         unsigned int            mod;
1303         KeySym                  keysym;
1304         void                    (*func)(struct swm_region *r, union arg *);
1305         union arg               args;
1306 } keys[] = {
1307         /* modifier             key     function                argument */
1308         { MODKEY,               XK_space,       cycle_layout,   {0} },
1309         { MODKEY | ShiftMask,   XK_space,       stack_config,   {.id = SWM_ARG_ID_STACKRESET} },
1310         { MODKEY,               XK_h,           stack_config,   {.id = SWM_ARG_ID_MASTERSHRINK} },
1311         { MODKEY,               XK_l,           stack_config,   {.id = SWM_ARG_ID_MASTERGROW} },
1312         { MODKEY,               XK_comma,       stack_config,   {.id = SWM_ARG_ID_MASTERADD} },
1313         { MODKEY,               XK_period,      stack_config,   {.id = SWM_ARG_ID_MASTERDEL} },
1314         { MODKEY,               XK_Return,      swapwin,        {.id = SWM_ARG_ID_SWAPMAIN} },
1315         { MODKEY,               XK_j,           focus,          {.id = SWM_ARG_ID_FOCUSNEXT} },
1316         { MODKEY,               XK_k,           focus,          {.id = SWM_ARG_ID_FOCUSPREV} },
1317         { MODKEY | ShiftMask,   XK_j,           swapwin,        {.id = SWM_ARG_ID_SWAPNEXT} },
1318         { MODKEY | ShiftMask,   XK_k,           swapwin,        {.id = SWM_ARG_ID_SWAPPREV} },
1319         { MODKEY | ShiftMask,   XK_Return,      spawn,          {.argv = spawn_term} },
1320         { MODKEY,               XK_p,           spawn,          {.argv = spawn_menu} },
1321         { MODKEY | ShiftMask,   XK_q,           quit,           {0} },
1322         { MODKEY,               XK_q,           restart,        {0} },
1323         { MODKEY,               XK_m,           focus,          {.id = SWM_ARG_ID_FOCUSMAIN} },
1324         { MODKEY,               XK_1,           switchws,       {.id = 0} },
1325         { MODKEY,               XK_2,           switchws,       {.id = 1} },
1326         { MODKEY,               XK_3,           switchws,       {.id = 2} },
1327         { MODKEY,               XK_4,           switchws,       {.id = 3} },
1328         { MODKEY,               XK_5,           switchws,       {.id = 4} },
1329         { MODKEY,               XK_6,           switchws,       {.id = 5} },
1330         { MODKEY,               XK_7,           switchws,       {.id = 6} },
1331         { MODKEY,               XK_8,           switchws,       {.id = 7} },
1332         { MODKEY,               XK_9,           switchws,       {.id = 8} },
1333         { MODKEY,               XK_0,           switchws,       {.id = 9} },
1334         { MODKEY,               XK_Right,       cyclews,        {.id = SWM_ARG_ID_CYCLEWS_UP} },
1335         { MODKEY,               XK_Left,        cyclews,        {.id = SWM_ARG_ID_CYCLEWS_DOWN} },
1336         { MODKEY | ShiftMask,   XK_1,           send_to_ws,     {.id = 0} },
1337         { MODKEY | ShiftMask,   XK_2,           send_to_ws,     {.id = 1} },
1338         { MODKEY | ShiftMask,   XK_3,           send_to_ws,     {.id = 2} },
1339         { MODKEY | ShiftMask,   XK_4,           send_to_ws,     {.id = 3} },
1340         { MODKEY | ShiftMask,   XK_5,           send_to_ws,     {.id = 4} },
1341         { MODKEY | ShiftMask,   XK_6,           send_to_ws,     {.id = 5} },
1342         { MODKEY | ShiftMask,   XK_7,           send_to_ws,     {.id = 6} },
1343         { MODKEY | ShiftMask,   XK_8,           send_to_ws,     {.id = 7} },
1344         { MODKEY | ShiftMask,   XK_9,           send_to_ws,     {.id = 8} },
1345         { MODKEY | ShiftMask,   XK_0,           send_to_ws,     {.id = 9} },
1346         { MODKEY,               XK_b,           bar_toggle,     {0} },
1347         { MODKEY,               XK_Tab,         focus,          {.id = SWM_ARG_ID_FOCUSNEXT} },
1348         { MODKEY | ShiftMask,   XK_Tab,         focus,          {.id = SWM_ARG_ID_FOCUSPREV} },
1349 };
1350
1351 #if 0
1352 /* mouse */
1353 enum { client_click, root_click };
1354 struct button {
1355         unsigned int            click;
1356         unsigned int            mask;
1357         unsigned int            button;
1358         void                    (*func)(struct swm_region *r, union arg *);
1359         union arg               args;
1360 } buttons[] = {
1361           /* action             key             mouse button    func            args */
1362         { client_click,         MODKEY,         Button2,        NULL, {0} },
1363 };
1364 #endif
1365
1366 void
1367 updatenumlockmask(void)
1368 {
1369         unsigned int            i, j;
1370         XModifierKeymap         *modmap;
1371
1372         DNPRINTF(SWM_D_MISC, "updatenumlockmask\n");
1373         numlockmask = 0;
1374         modmap = XGetModifierMapping(display);
1375         for (i = 0; i < 8; i++)
1376                 for (j = 0; j < modmap->max_keypermod; j++)
1377                         if (modmap->modifiermap[i * modmap->max_keypermod + j]
1378                           == XKeysymToKeycode(display, XK_Num_Lock))
1379                                 numlockmask = (1 << i);
1380
1381         XFreeModifiermap(modmap);
1382 }
1383
1384 void
1385 grabkeys(void)
1386 {
1387         unsigned int            i, j, k;
1388         KeyCode                 code;
1389         unsigned int            modifiers[] =
1390             { 0, LockMask, numlockmask, numlockmask | LockMask };
1391
1392         DNPRINTF(SWM_D_MISC, "grabkeys\n");
1393         updatenumlockmask();
1394
1395         for (k = 0; k < ScreenCount(display); k++) {
1396                 if (TAILQ_EMPTY(&screens[k].rl))
1397                         continue;
1398                 XUngrabKey(display, AnyKey, AnyModifier, screens[k].root);
1399                 for (i = 0; i < LENGTH(keys); i++) {
1400                         if ((code = XKeysymToKeycode(display, keys[i].keysym)))
1401                                 for (j = 0; j < LENGTH(modifiers); j++)
1402                                         XGrabKey(display, code,
1403                                             keys[i].mod | modifiers[j],
1404                                             screens[k].root, True,
1405                                             GrabModeAsync, GrabModeAsync);
1406                 }
1407         }
1408 }
1409 void
1410 expose(XEvent *e)
1411 {
1412         DNPRINTF(SWM_D_EVENT, "expose: window: %lu\n", e->xexpose.window);
1413 }
1414
1415 void
1416 keypress(XEvent *e)
1417 {
1418         unsigned int            i;
1419         KeySym                  keysym;
1420         XKeyEvent               *ev = &e->xkey;
1421
1422         DNPRINTF(SWM_D_EVENT, "keypress: window: %lu\n", ev->window);
1423
1424         keysym = XKeycodeToKeysym(display, (KeyCode)ev->keycode, 0);
1425         for (i = 0; i < LENGTH(keys); i++)
1426                 if (keysym == keys[i].keysym
1427                    && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
1428                    && keys[i].func)
1429                         keys[i].func(root_to_region(ev->root),
1430                             &(keys[i].args));
1431 }
1432
1433 void
1434 buttonpress(XEvent *e)
1435 {
1436         XButtonPressedEvent     *ev = &e->xbutton;
1437 #ifdef SWM_CLICKTOFOCUS
1438         struct ws_win           *win;
1439         struct workspace        *ws;
1440         struct swm_region       *r;
1441 #endif
1442
1443         DNPRINTF(SWM_D_EVENT, "buttonpress: window: %lu\n", ev->window);
1444
1445         if (ev->window == ev->root)
1446                 return;
1447         if (ev->window == cur_focus->id)
1448                 return;
1449 #ifdef SWM_CLICKTOFOCUS
1450         r = root_to_region(ev->root);
1451         ws = r->ws;
1452         TAILQ_FOREACH(win, &ws->winlist, entry)
1453                 if (win->id == ev->window) {
1454                         /* focus in the clicked window */
1455                         XSetWindowBorder(display, ev->window, 0xff0000);
1456                         XSetWindowBorder(display, ws->focus->id, 0x888888);
1457                         XSetInputFocus(display, ev->window, RevertToPointerRoot,
1458                             CurrentTime);
1459                         ws->focus = win;
1460                         XSync(display, False);
1461                         break;
1462         }
1463 #endif
1464 }
1465
1466 void
1467 set_win_state(struct ws_win *win, long state)
1468 {
1469         long                    data[] = {state, None};
1470
1471         DNPRINTF(SWM_D_EVENT, "set_win_state: window: %lu\n", win->id);
1472
1473         XChangeProperty(display, win->id, astate, astate, 32, PropModeReplace,
1474             (unsigned char *)data, 2);
1475 }
1476
1477 struct ws_win *
1478 manage_window(Window id, struct workspace *ws)
1479 {
1480         Window                  trans;
1481         struct ws_win           *win;
1482         XClassHint              ch;
1483
1484         TAILQ_FOREACH(win, &ws->winlist, entry) {
1485                 if (win->id == id)
1486                         return (win);   /* already being managed */
1487         }
1488
1489         if ((win = calloc(1, sizeof(struct ws_win))) == NULL)
1490                 errx(1, "calloc: failed to allocate memory for new window");
1491
1492         win->id = id;
1493         win->ws = ws;
1494         win->s = ws->r->s;      /* this never changes */
1495         TAILQ_INSERT_TAIL(&ws->winlist, win, entry);
1496
1497         /* make new win focused */
1498         focus_win(win);
1499
1500         XGetTransientForHint(display, win->id, &trans);
1501         if (trans) {
1502                 win->transient = trans;
1503                 DNPRINTF(SWM_D_MISC, "manage_window: win %u transient %u\n",
1504                     (unsigned)win->id, win->transient);
1505         }
1506         XGetWindowAttributes(display, id, &win->wa);
1507         win->g.w = win->wa.width;
1508         win->g.h = win->wa.height;
1509         win->g.x = win->wa.x;
1510         win->g.y = win->wa.y;
1511
1512         /* XXX make this a table */
1513         bzero(&ch, sizeof ch);
1514         if (XGetClassHint(display, win->id, &ch)) {
1515                 /*fprintf(stderr, "class: %s name: %s\n", ch.res_class, ch.res_name); */
1516                 if (!strcmp(ch.res_class, "MPlayer") && !strcmp(ch.res_name, "xv")) {
1517                         win->floating = 1;
1518                 }
1519                 if (ch.res_class)
1520                         XFree(ch.res_class);
1521                 if (ch.res_name)
1522                         XFree(ch.res_name);
1523         }
1524
1525         XSelectInput(display, id, EnterWindowMask | FocusChangeMask |
1526             PropertyChangeMask | StructureNotifyMask);
1527
1528         set_win_state(win, NormalState);
1529
1530         return (win);
1531 }
1532
1533 void
1534 configurerequest(XEvent *e)
1535 {
1536         XConfigureRequestEvent  *ev = &e->xconfigurerequest;
1537         struct ws_win           *win;
1538         int                     new = 1;
1539         XWindowChanges          wc;
1540
1541         if ((win = find_window(ev->window)) == NULL)
1542                 new = 1;
1543
1544         if (new) {
1545                 DNPRINTF(SWM_D_EVENT, "configurerequest: new window: %lu\n",
1546                     ev->window);
1547                 bzero(&wc, sizeof wc);
1548                 wc.x = ev->x;
1549                 wc.y = ev->y;
1550                 wc.width = ev->width;
1551                 wc.height = ev->height;
1552                 wc.border_width = ev->border_width;
1553                 wc.sibling = ev->above;
1554                 wc.stack_mode = ev->detail;
1555                 XConfigureWindow(display, ev->window, ev->value_mask, &wc);
1556         } else {
1557                 DNPRINTF(SWM_D_EVENT, "configurerequest: change window: %lu\n",
1558                     ev->window);
1559                 if (win->floating) {
1560                         if (ev->value_mask & CWX)
1561                                 win->g.x = ev->x;
1562                         if (ev->value_mask & CWY)
1563                                 win->g.y = ev->y;
1564                         if (ev->value_mask & CWWidth)
1565                                 win->g.w = ev->width;
1566                         if (ev->value_mask & CWHeight)
1567                                 win->g.h = ev->height;
1568                         if (win->ws->r != NULL) {
1569                                 /* this seems to be full screen */
1570                                 if (win->g.w > WIDTH(win->ws->r)) {
1571                                         /* kill border */
1572                                         win->g.x -= 1;
1573                                         win->g.w += 1;
1574                                 }
1575                                 if (win->g.h > HEIGHT(win->ws->r)) {
1576                                         /* kill border */
1577                                         win->g.y -= 1;
1578                                         win->g.h += 1;
1579                                 }
1580                         }
1581                         if ((ev->value_mask & (CWX|CWY)) &&
1582                             !(ev->value_mask & (CWWidth|CWHeight)))
1583                                 config_win(win);
1584                         XMoveResizeWindow(display, win->id,
1585                             win->g.x, win->g.y, win->g.w, win->g.h);
1586                 } else
1587                         config_win(win);
1588         }
1589 }
1590
1591 void
1592 configurenotify(XEvent *e)
1593 {
1594         DNPRINTF(SWM_D_EVENT, "configurenotify: window: %lu\n",
1595             e->xconfigure.window);
1596 }
1597
1598 void
1599 destroynotify(XEvent *e)
1600 {
1601         struct ws_win           *win;
1602         XDestroyWindowEvent     *ev = &e->xdestroywindow;
1603         struct workspace        *ws;
1604
1605         DNPRINTF(SWM_D_EVENT, "destroynotify: window %lu\n", ev->window);
1606
1607         if ((win = find_window(ev->window)) != NULL) {
1608                 ws = win->ws;
1609                 /* find a window to focus */
1610                 if (ws->focus == win)
1611                         ws->focus = TAILQ_PREV(win, ws_win_list, entry);
1612                 if (ws->focus == NULL)
1613                         ws->focus = TAILQ_FIRST(&ws->winlist);
1614                 if (ws->focus == win)
1615                         ws->focus = NULL;
1616                 if (cur_focus == win)
1617                         focus_win(ws->focus);
1618
1619                 TAILQ_REMOVE(&ws->winlist, win, entry);
1620                 set_win_state(win, WithdrawnState);
1621                 free(win);
1622         }
1623         stack();
1624 }
1625
1626 void
1627 enternotify(XEvent *e)
1628 {
1629         XCrossingEvent          *ev = &e->xcrossing;
1630         struct ws_win           *win;
1631
1632         DNPRINTF(SWM_D_EVENT, "enternotify: window: %lu\n", ev->window);
1633
1634         if (ignore_enter) {
1635                 /* eat event(r) to prevent autofocus */
1636                 ignore_enter--;
1637                 return;
1638         }
1639
1640         if ((win = find_window(ev->window)) != NULL)
1641                 focus_win(win);
1642 }
1643
1644 void
1645 focusin(XEvent *e)
1646 {
1647         DNPRINTF(SWM_D_EVENT, "focusin: window: %lu\n", e->xfocus.window);
1648
1649         /* XXX this probably needs better handling now.
1650         if (ev->window == ev->root)
1651                 return;
1652         */
1653         /*
1654          * kill grab for now so that we can cut and paste , this screws up
1655          * click to focus
1656          */
1657         /*
1658         DNPRINTF(SWM_D_EVENT, "focusin: window: %lu grabbing\n", ev->window);
1659         XGrabButton(display, Button1, AnyModifier, ev->window, False,
1660             ButtonPress, GrabModeAsync, GrabModeSync, None, None);
1661         */
1662 }
1663
1664 void
1665 mappingnotify(XEvent *e)
1666 {
1667         XMappingEvent           *ev = &e->xmapping;
1668
1669         DNPRINTF(SWM_D_EVENT, "mappingnotify: window: %lu\n", ev->window);
1670
1671         XRefreshKeyboardMapping(ev);
1672         if (ev->request == MappingKeyboard)
1673                 grabkeys();
1674 }
1675
1676 void
1677 maprequest(XEvent *e)
1678 {
1679         XMapRequestEvent        *ev = &e->xmaprequest;
1680         XWindowAttributes       wa;
1681         struct swm_region       *r;
1682
1683         DNPRINTF(SWM_D_EVENT, "maprequest: window: %lu\n",
1684             e->xmaprequest.window);
1685
1686         if (!XGetWindowAttributes(display, ev->window, &wa))
1687                 return;
1688         if (wa.override_redirect)
1689                 return;
1690         r = root_to_region(wa.root);
1691         manage_window(e->xmaprequest.window, r->ws);
1692         stack();
1693 }
1694
1695 void
1696 propertynotify(XEvent *e)
1697 {
1698         DNPRINTF(SWM_D_EVENT, "propertynotify: window: %lu\n",
1699             e->xproperty.window);
1700 }
1701
1702 void
1703 unmapnotify(XEvent *e)
1704 {
1705         DNPRINTF(SWM_D_EVENT, "unmapnotify: window: %lu\n", e->xunmap.window);
1706 }
1707
1708 void
1709 visibilitynotify(XEvent *e)
1710 {
1711         int                     i;
1712         struct swm_region       *r;
1713
1714         DNPRINTF(SWM_D_EVENT, "visibilitynotify: window: %lu\n",
1715             e->xvisibility.window);
1716         if (e->xvisibility.state == VisibilityUnobscured)
1717                 for (i = 0; i < ScreenCount(display); i++)
1718                         TAILQ_FOREACH(r, &screens[i].rl, entry)
1719                                 if (e->xvisibility.window == r->bar_window)
1720                                         bar_update();
1721 }
1722
1723 void                    (*handler[LASTEvent])(XEvent *) = {
1724                                 [Expose] = expose,
1725                                 [KeyPress] = keypress,
1726                                 [ButtonPress] = buttonpress,
1727                                 [ConfigureRequest] = configurerequest,
1728                                 [ConfigureNotify] = configurenotify,
1729                                 [DestroyNotify] = destroynotify,
1730                                 [EnterNotify] = enternotify,
1731                                 [FocusIn] = focusin,
1732                                 [MappingNotify] = mappingnotify,
1733                                 [MapRequest] = maprequest,
1734                                 [PropertyNotify] = propertynotify,
1735                                 [UnmapNotify] = unmapnotify,
1736                                 [VisibilityNotify] = visibilitynotify,
1737 };
1738
1739 int
1740 xerror_start(Display *d, XErrorEvent *ee)
1741 {
1742         other_wm = 1;
1743         return (-1);
1744 }
1745
1746 int
1747 xerror(Display *d, XErrorEvent *ee)
1748 {
1749         /* fprintf(stderr, "error: %p %p\n", display, ee); */
1750         return (-1);
1751 }
1752
1753 int
1754 active_wm(void)
1755 {
1756         other_wm = 0;
1757         xerrorxlib = XSetErrorHandler(xerror_start);
1758
1759         /* this causes an error if some other window manager is running */
1760         XSelectInput(display, DefaultRootWindow(display),
1761             SubstructureRedirectMask);
1762         XSync(display, False);
1763         if (other_wm)
1764                 return (1);
1765
1766         XSetErrorHandler(xerror);
1767         XSync(display, False);
1768         return (0);
1769 }
1770
1771 long
1772 getstate(Window w)
1773 {
1774         int                     format, status;
1775         long                    result = -1;
1776         unsigned char           *p = NULL;
1777         unsigned long           n, extra;
1778         Atom                    real;
1779
1780         astate = XInternAtom(display, "WM_STATE", False);
1781         status = XGetWindowProperty(display, w, astate, 0L, 2L, False, astate,
1782             &real, &format, &n, &extra, (unsigned char **)&p);
1783         if (status != Success)
1784                 return (-1);
1785         if (n != 0)
1786                 result = *p;
1787         XFree(p);
1788         return (result);
1789 }
1790
1791 void
1792 new_region(struct swm_screen *s, struct workspace *ws,
1793     int x, int y, int w, int h)
1794 {
1795         struct swm_region       *r;
1796
1797         DNPRINTF(SWM_D_MISC, "new region on screen %d: %dx%d (%d, %d)\n",
1798              s->idx, x, y, w, h);
1799
1800         if ((r = calloc(1, sizeof(struct swm_region))) == NULL)
1801                 errx(1, "calloc: failed to allocate memory for screen");
1802
1803         X(r) = x;
1804         Y(r) = y;
1805         WIDTH(r) = w;
1806         HEIGHT(r) = h;
1807         r->s = s;
1808         r->ws = ws;
1809         ws->r = r;
1810         TAILQ_INSERT_TAIL(&s->rl, r, entry);
1811         bar_setup(r);
1812 }
1813
1814 void
1815 setup_screens(void)
1816 {
1817 #ifdef SWM_XRR_HAS_CRTC
1818         XRRCrtcInfo             *ci;
1819         XRRScreenResources      *sr;
1820         int                     c;
1821 #endif /* SWM_XRR_HAS_CRTC */
1822         Window                  d1, d2, *wins = NULL;
1823         XWindowAttributes       wa;
1824         struct swm_region       *r;
1825         unsigned int            no;
1826         int                     errorbase, major, minor;
1827         int                     ncrtc = 0, w = 0;
1828         int                     i, j, k;
1829         struct workspace        *ws;
1830
1831         if ((screens = calloc(ScreenCount(display),
1832              sizeof(struct swm_screen))) == NULL)
1833                 errx(1, "calloc: screens");
1834
1835         /* map physical screens */
1836         for (i = 0; i < ScreenCount(display); i++) {
1837                 DNPRINTF(SWM_D_WS, "setup_screens: init screen %d\n", i);
1838                 screens[i].idx = i;
1839                 TAILQ_INIT(&screens[i].rl);
1840                 screens[i].root = RootWindow(display, i);
1841
1842                 /* set default colors */
1843                 screens[i].color_focus = name_to_color("red");
1844                 screens[i].color_unfocus = name_to_color("rgb:88/88/88");
1845                 screens[i].bar_border = name_to_color("rgb:00/80/80");
1846                 screens[i].bar_color = name_to_color("black");
1847                 screens[i].bar_font_color = name_to_color("rgb:a0/a0/a0");
1848
1849                 /* init all workspaces */
1850                 for (j = 0; j < SWM_WS_MAX; j++) {
1851                         ws = &screens[i].ws[j];
1852                         ws->idx = j;
1853                         ws->restack = 1;
1854                         ws->focus = NULL;
1855                         ws->r = NULL;
1856                         TAILQ_INIT(&ws->winlist);
1857
1858                         for (k = 0; layouts[k].l_stack != NULL; k++)
1859                                 if (layouts[k].l_config != NULL)
1860                                         layouts[k].l_config(ws,
1861                                             SWM_ARG_ID_STACKINIT);
1862                         ws->cur_layout = &layouts[0];
1863                 }
1864
1865                 /* map virtual screens onto physical screens */
1866                 screens[i].xrandr_support = XRRQueryExtension(display,
1867                     &xrandr_eventbase, &errorbase);
1868                 if (screens[i].xrandr_support)
1869                         if (XRRQueryVersion(display, &major, &minor) &&
1870                             major < 1)
1871                                 screens[i].xrandr_support = 0;
1872
1873 #if 0   /* not ready for dynamic screen changes */
1874                 if (screens[i].xrandr_support)
1875                         XRRSelectInput(display,
1876                             screens[r->s].root,
1877                             RRScreenChangeNotifyMask);
1878 #endif
1879
1880                 /* grab existing windows (before we build the bars)*/
1881                 if (!XQueryTree(display, screens[i].root, &d1, &d2, &wins, &no))
1882                         continue;
1883
1884 #ifdef SWM_XRR_HAS_CRTC
1885                 sr = XRRGetScreenResources(display, screens[i].root);
1886                 if (sr == NULL)
1887                         new_region(&screens[i], &screens[i].ws[w],
1888                             0, 0, DisplayWidth(display, i),
1889                             DisplayHeight(display, i));
1890                 else
1891                         ncrtc = sr->ncrtc;
1892
1893                 for (c = 0; c < ncrtc; c++) {
1894                         ci = XRRGetCrtcInfo(display, sr, sr->crtcs[c]);
1895                         if (ci->noutput == 0)
1896                                 continue;
1897
1898                         if (ci != NULL && ci->mode == None)
1899                                 new_region(&screens[i], &screens[i].ws[w], 0, 0,
1900                                     DisplayWidth(display, i),
1901                                     DisplayHeight(display, i));
1902                         else
1903                                 new_region(&screens[i], &screens[i].ws[w],
1904                                     ci->x, ci->y, ci->width, ci->height);
1905                         w++;
1906                 }
1907                 XRRFreeCrtcInfo(ci);
1908                 XRRFreeScreenResources(sr);
1909 #else
1910                 new_region(&screens[i], &screens[i].ws[w], 0, 0,
1911                     DisplayWidth(display, i),
1912                     DisplayHeight(display, i));
1913 #endif /* SWM_XRR_HAS_CRTC */
1914
1915                 /* attach windows to a region */
1916                 /* normal windows */
1917                 if ((r = TAILQ_FIRST(&screens[i].rl)) == NULL)
1918                         errx(1, "no regions on screen %d", i);
1919
1920                 for (i = 0; i < no; i++) {
1921                         XGetWindowAttributes(display, wins[i], &wa);
1922                         if (!XGetWindowAttributes(display, wins[i], &wa) ||
1923                             wa.override_redirect ||
1924                             XGetTransientForHint(display, wins[i], &d1))
1925                                 continue;
1926
1927                         if (wa.map_state == IsViewable ||
1928                             getstate(wins[i]) == NormalState)
1929                                 manage_window(wins[i], r->ws);
1930                 }
1931                 /* transient windows */
1932                 for (i = 0; i < no; i++) {
1933                         if (!XGetWindowAttributes(display, wins[i], &wa))
1934                                 continue;
1935
1936                         if (XGetTransientForHint(display, wins[i], &d1) &&
1937                             (wa.map_state == IsViewable || getstate(wins[i]) ==
1938                             NormalState))
1939                                 manage_window(wins[i], r->ws);
1940                 }
1941                 if (wins) {
1942                         XFree(wins);
1943                         wins = NULL;
1944                 }
1945         }
1946 }
1947
1948 int
1949 main(int argc, char *argv[])
1950 {
1951         struct passwd           *pwd;
1952         char                    conf[PATH_MAX], *cfile = NULL;
1953         struct stat             sb;
1954         XEvent                  e;
1955         int                     xfd;
1956         fd_set                  rd;
1957
1958         start_argv = argv;
1959         fprintf(stderr, "Welcome to scrotwm V%s\n", SWM_VERSION);
1960         if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
1961                 warnx("no locale support");
1962
1963         if (!(display = XOpenDisplay(0)))
1964                 errx(1, "can not open display");
1965
1966         if (active_wm())
1967                 errx(1, "other wm running");
1968
1969         astate = XInternAtom(display, "WM_STATE", False);
1970
1971         /* look for local and global conf file */
1972         pwd = getpwuid(getuid());
1973         if (pwd == NULL)
1974                 errx(1, "invalid user %d", getuid());
1975
1976         setup_screens();
1977
1978         snprintf(conf, sizeof conf, "%s/.%s", pwd->pw_dir, SWM_CONF_FILE);
1979         if (stat(conf, &sb) != -1) {
1980                 if (S_ISREG(sb.st_mode))
1981                         cfile = conf;
1982         } else {
1983                 /* try global conf file */
1984                 snprintf(conf, sizeof conf, "/etc/%s", SWM_CONF_FILE);
1985                 if (!stat(conf, &sb))
1986                         if (S_ISREG(sb.st_mode))
1987                                 cfile = conf;
1988         }
1989         if (cfile)
1990                 conf_load(cfile);
1991         bar_refresh();
1992
1993         /* ws[0].focus = TAILQ_FIRST(&ws[0].winlist); */
1994
1995         grabkeys();
1996         stack();
1997
1998         xfd = ConnectionNumber(display);
1999         while (running) {
2000                 FD_SET(xfd, &rd);
2001                 if (select(xfd + 1, &rd, NULL, NULL, NULL) == -1)
2002                         if (errno != EINTR)
2003                                 errx(1, "select failed");
2004                 if (bar_alarm) {
2005                         bar_alarm = 0;
2006                         bar_update();
2007                 }
2008                 while(XPending(display)) {
2009                         XNextEvent(display, &e);
2010                         if (handler[e.type])
2011                                 handler[e.type](&e);
2012                 }
2013         }
2014
2015         XCloseDisplay(display);
2016
2017         return (0);
2018 }