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 static const char       *cvstag = "$scrotwm$";
  52
  53 #define SWM_VERSION     "0.7"
  54
  55 #include <stdio.h>
  56 #include <stdlib.h>
  57 #include <err.h>
  58 #include <errno.h>
  59 #include <fcntl.h>
  60 #include <locale.h>
  61 #include <unistd.h>
  62 #include <time.h>
  63 #include <signal.h>
  64 #include <string.h>
  65 #include <util.h>
  66 #include <pwd.h>
  67 #include <ctype.h>
  68
  69 #include <sys/types.h>
  70 #include <sys/time.h>
  71 #include <sys/stat.h>
  72 #include <sys/wait.h>
  73 #include <sys/queue.h>
  74 #include <sys/param.h>
  75 #include <sys/select.h>
  76
  77 #include <X11/cursorfont.h>
  78 #include <X11/keysym.h>
  79 #include <X11/Xatom.h>
  80 #include <X11/Xlib.h>
  81 #include <X11/Xproto.h>
  82 #include <X11/Xutil.h>
  83 #include <X11/extensions/Xrandr.h>
  84
  85 #if RANDR_MAJOR < 1
  86 #  error XRandR versions less than 1.0 are not supported
  87 #endif
  88
  89 #if RANDR_MAJOR >= 1
  90 #if RANDR_MINOR >= 2
  91 #define SWM_XRR_HAS_CRTC
  92 #endif
  93 #endif
  94
  95 /* #define SWM_DEBUG */
  96 #ifdef SWM_DEBUG
  97 #define DPRINTF(x...)           do { if (swm_debug) fprintf(stderr, x); } while(0)
  98 #define DNPRINTF(n,x...)        do { if (swm_debug & n) fprintf(stderr, x); } while(0)
  99 #define SWM_D_MISC              0x0001
 100 #define SWM_D_EVENT             0x0002
 101 #define SWM_D_WS                0x0004
 102 #define SWM_D_FOCUS             0x0008
 103 #define SWM_D_MOVE              0x0010
 104 #define SWM_D_STACK             0x0020
 105 #define SWM_D_MOUSE             0x0040
 106 #define SWM_D_PROP              0x0080
 107 #define SWM_D_CLASS             0x0100
 108
 109 u_int32_t               swm_debug = 0
 110                             | SWM_D_MISC
 111                             | SWM_D_EVENT
 112                             | SWM_D_WS
 113                             | SWM_D_FOCUS
 114                             | SWM_D_MOVE
 115                             | SWM_D_STACK
 116                             | SWM_D_MOUSE
 117                             | SWM_D_PROP
 118                             | SWM_D_CLASS
 119                             ;
 120 #else
 121 #define DPRINTF(x...)
 122 #define DNPRINTF(n,x...)
 123 #endif
 124
 125 #define LENGTH(x)               (sizeof x / sizeof x[0])
 126 #define MODKEY                  Mod1Mask
 127 #define CLEANMASK(mask)         (mask & ~(numlockmask | LockMask))
 128 #define BUTTONMASK              (ButtonPressMask|ButtonReleaseMask)
 129 #define MOUSEMASK               (BUTTONMASK|PointerMotionMask)
 130 #define SWM_PROPLEN             (16)
 131 #define X(r)                    (r)->g.x
 132 #define Y(r)                    (r)->g.y
 133 #define WIDTH(r)                (r)->g.w
 134 #define HEIGHT(r)               (r)->g.h
 135
 136 #ifndef SWM_LIB
 137 #define SWM_LIB                 "/usr/X11R6/lib/swmhack.so"
 138 #endif
 139
 140 char                    **start_argv;
 141 Atom                    astate;
 142 int                     (*xerrorxlib)(Display *, XErrorEvent *);
 143 int                     other_wm;
 144 int                     running = 1;
 145 int                     ss_enabled = 0;
 146 int                     xrandr_eventbase;
 147 int                     ignore_enter = 0;
 148 unsigned int            numlockmask = 0;
 149 Display                 *display;
 150
 151 int                     cycle_empty = 0;
 152 int                     cycle_visible = 0;
 153
 154 /* dialog windows */
 155 double                  dialog_ratio = .6;
 156 /* status bar */
 157 #define SWM_BAR_MAX     (128)
 158 char                    *bar_argv[] = { NULL, NULL };
 159 int                     bar_pipe[2];
 160 char                    bar_ext[SWM_BAR_MAX];
 161 char                    bar_vertext[SWM_BAR_MAX];
 162 int                     bar_version = 0;
 163 sig_atomic_t            bar_alarm = 0;
 164 int                     bar_delay = 30;
 165 int                     bar_enabled = 1;
 166 int                     bar_extra = 1;
 167 int                     bar_extra_running = 0;
 168 int                     bar_verbose = 1;
 169 int                     bar_height = 0;
 170 pid_t                   bar_pid;
 171 GC                      bar_gc;
 172 XGCValues               bar_gcv;
 173 int                     bar_fidx = 0;
 174 XFontStruct             *bar_fs;
 175 char                    *bar_fonts[] = {
 176                             "-*-terminus-*-*-*-*-*-*-*-*-*-*-*-*",
 177                             "-*-times-medium-r-*-*-*-*-*-*-*-*-*-*",
 178                             NULL
 179 };
 180
 181 /* terminal + args */
 182 char                    *spawn_term[] = { "xterm", NULL };
 183 char                    *spawn_screenshot[] = { "screenshot.sh", NULL, NULL };
 184 char                    *spawn_lock[] = { "xlock", NULL };
 185 char                    *spawn_menu[] = { "dmenu_run", "-fn", NULL, "-nb", NULL,
 186                             "-nf", NULL, "-sb", NULL, "-sf", NULL, NULL };
 187
 188 #define SWM_MENU_FN     (2)
 189 #define SWM_MENU_NB     (4)
 190 #define SWM_MENU_NF     (6)
 191 #define SWM_MENU_SB     (8)
 192 #define SWM_MENU_SF     (10)
 193
 194 /* layout manager data */
 195 struct swm_geometry {
 196         int                     x;
 197         int                     y;
 198         int                     w;
 199         int                     h;
 200 };
 201
 202 struct swm_screen;
 203 struct workspace;
 204
 205 /* virtual "screens" */
 206 struct swm_region {
 207         TAILQ_ENTRY(swm_region) entry;
 208         struct swm_geometry     g;
 209         Window                  bar_window;
 210         struct workspace        *ws;    /* current workspace on this region */
 211         struct swm_screen       *s;     /* screen idx */
 212 };
 213 TAILQ_HEAD(swm_region_list, swm_region);
 214
 215 struct ws_win {
 216         TAILQ_ENTRY(ws_win)     entry;
 217         Window                  id;
 218         struct swm_geometry     g;
 219         int                     got_focus;
 220         int                     floating;
 221         int                     transient;
 222         int                     manual;
 223         struct workspace        *ws;    /* always valid */
 224         struct swm_screen       *s;     /* always valid, never changes */
 225         XWindowAttributes       wa;
 226         XSizeHints              sh;
 227         XClassHint              ch;
 228 };
 229 TAILQ_HEAD(ws_win_list, ws_win);
 230
 231 /* layout handlers */
 232 void    stack(void);
 233 void    vertical_config(struct workspace *, int);
 234 void    vertical_stack(struct workspace *, struct swm_geometry *);
 235 void    horizontal_config(struct workspace *, int);
 236 void    horizontal_stack(struct workspace *, struct swm_geometry *);
 237 void    max_stack(struct workspace *, struct swm_geometry *);
 238
 239 void    grabbuttons(struct ws_win *, int);
 240
 241 struct layout {
 242         void            (*l_stack)(struct workspace *, struct swm_geometry *);
 243         void            (*l_config)(struct workspace *, int);
 244 } layouts[] =  {
 245         /* stack,               configure */
 246         { vertical_stack,       vertical_config},
 247         { horizontal_stack,     horizontal_config},
 248         { max_stack,            NULL},
 249         { NULL,                 NULL},
 250 };
 251
 252 #define SWM_H_SLICE             (32)
 253 #define SWM_V_SLICE             (32)
 254
 255 /* define work spaces */
 256 struct workspace {
 257         int                     idx;            /* workspace index */
 258         int                     restack;        /* restack on switch */
 259         struct layout           *cur_layout;    /* current layout handlers */
 260         struct ws_win           *focus;         /* may be NULL */
 261         struct swm_region       *r;             /* may be NULL */
 262         struct ws_win_list      winlist;        /* list of windows in ws */
 263
 264         /* stacker state */
 265         struct {
 266                                 int horizontal_msize;
 267                                 int horizontal_mwin;
 268                                 int vertical_msize;
 269                                 int vertical_mwin;
 270         } l_state;
 271 };
 272
 273 enum    { SWM_S_COLOR_BAR, SWM_S_COLOR_BAR_BORDER, SWM_S_COLOR_BAR_FONT,
 274           SWM_S_COLOR_FOCUS, SWM_S_COLOR_UNFOCUS, SWM_S_COLOR_MAX };
 275
 276 /* physical screen mapping */
 277 #define SWM_WS_MAX              (10)            /* XXX Too small? */
 278 struct swm_screen {
 279         int                     idx;            /* screen index */
 280         struct swm_region_list  rl;     /* list of regions on this screen */
 281         Window                  root;
 282         int                     xrandr_support;
 283         struct workspace        ws[SWM_WS_MAX];
 284
 285         /* colors */
 286         struct {
 287                 unsigned long   color;
 288                 char            *name;
 289         } c[SWM_S_COLOR_MAX];
 290 };
 291 struct swm_screen       *screens;
 292 int                     num_screens;
 293
 294 struct ws_win           *cur_focus = NULL;
 295
 296 /* args to functions */
 297 union arg {
 298         int                     id;
 299 #define SWM_ARG_ID_FOCUSNEXT    (0)
 300 #define SWM_ARG_ID_FOCUSPREV    (1)
 301 #define SWM_ARG_ID_FOCUSMAIN    (2)
 302 #define SWM_ARG_ID_SWAPNEXT     (3)
 303 #define SWM_ARG_ID_SWAPPREV     (4)
 304 #define SWM_ARG_ID_SWAPMAIN     (5)
 305 #define SWM_ARG_ID_MASTERSHRINK (6)
 306 #define SWM_ARG_ID_MASTERGROW   (7)
 307 #define SWM_ARG_ID_MASTERADD    (8)
 308 #define SWM_ARG_ID_MASTERDEL    (9)
 309 #define SWM_ARG_ID_STACKRESET   (10)
 310 #define SWM_ARG_ID_STACKINIT    (11)
 311 #define SWM_ARG_ID_CYCLEWS_UP   (12)
 312 #define SWM_ARG_ID_CYCLEWS_DOWN (13)
 313 #define SWM_ARG_ID_CYCLESC_UP   (14)
 314 #define SWM_ARG_ID_CYCLESC_DOWN (15)
 315 #define SWM_ARG_ID_SS_ALL       (0)
 316 #define SWM_ARG_ID_SS_WINDOW    (1)
 317 #define SWM_ARG_ID_DONTCENTER   (0)
 318 #define SWM_ARG_ID_CENTER       (1)
 319         char                    **argv;
 320 };
 321
 322 /* quirks */
 323 struct quirk {
 324         char                    *class;
 325         char                    *name;
 326         unsigned long           quirk;
 327 #define SWM_Q_FLOAT             (1<<0)
 328 } quirks[] = {
 329         { "MPlayer",            "xv",           SWM_Q_FLOAT },
 330         { "OpenOffice.org 2.4", "VCLSalFrame",  SWM_Q_FLOAT },
 331         { NULL,         NULL,           0},
 332 };
 333
 334 /* events */
 335 void                    expose(XEvent *);
 336 void                    keypress(XEvent *);
 337 void                    buttonpress(XEvent *);
 338 void                    configurerequest(XEvent *);
 339 void                    configurenotify(XEvent *);
 340 void                    destroynotify(XEvent *);
 341 void                    enternotify(XEvent *);
 342 void                    focusin(XEvent *);
 343 void                    mappingnotify(XEvent *);
 344 void                    maprequest(XEvent *);
 345 void                    propertynotify(XEvent *);
 346 void                    unmapnotify(XEvent *);
 347 void                    visibilitynotify(XEvent *);
 348
 349 void                    (*handler[LASTEvent])(XEvent *) = {
 350                                 [Expose] = expose,
 351                                 [KeyPress] = keypress,
 352                                 [ButtonPress] = buttonpress,
 353                                 [ConfigureRequest] = configurerequest,
 354                                 [ConfigureNotify] = configurenotify,
 355                                 [DestroyNotify] = destroynotify,
 356                                 [EnterNotify] = enternotify,
 357                                 [FocusIn] = focusin,
 358                                 [MappingNotify] = mappingnotify,
 359                                 [MapRequest] = maprequest,
 360                                 [PropertyNotify] = propertynotify,
 361                                 [UnmapNotify] = unmapnotify,
 362                                 [VisibilityNotify] = visibilitynotify,
 363 };
 364
 365 unsigned long
 366 name_to_color(char *colorname)
 367 {
 368         Colormap                cmap;
 369         Status                  status;
 370         XColor                  screen_def, exact_def;
 371         unsigned long           result = 0;
 372         char                    cname[32] = "#";
 373
 374         cmap = DefaultColormap(display, screens[0].idx);
 375         status = XAllocNamedColor(display, cmap, colorname,
 376             &screen_def, &exact_def);
 377         if (!status) {
 378                 strlcat(cname, colorname + 2, sizeof cname - 1);
 379                 status = XAllocNamedColor(display, cmap, cname, &screen_def,
 380                     &exact_def);
 381         }
 382         if (status)
 383                 result = screen_def.pixel;
 384         else
 385                 fprintf(stderr, "color '%s' not found.\n", colorname);
 386
 387         return (result);
 388 }
 389
 390 void
 391 setscreencolor(char *val, int i, int c)
 392 {
 393         if (i > 0 && i <= ScreenCount(display)) {
 394                 screens[i - 1].c[c].color = name_to_color(val);
 395                 if ((screens[i - 1].c[c].name = strdup(val)) == NULL)
 396                         errx(1, "strdup");
 397         } else if (i == -1) {
 398                 for (i = 0; i < ScreenCount(display); i++)
 399                         screens[i].c[c].color = name_to_color(val);
 400                         if ((screens[i - 1].c[c].name = strdup(val)) == NULL)
 401                                 errx(1, "strdup");
 402         } else
 403                 errx(1, "invalid screen index: %d out of bounds (maximum %d)\n",
 404                     i, ScreenCount(display));
 405 }
 406
 407 int
 408 varmatch(char *var, char *name, int *index)
 409 {
 410         char                    *p, buf[5];
 411         int                     i;
 412
 413         i = strncmp(var, name, 255);
 414         if (index == NULL)
 415                 return (i);
 416
 417         *index = -1;
 418         if (i <= 0)
 419                 return (i);
 420         p = var + strlen(name);
 421         if (*p++ != '[')
 422                 return (i);
 423         bzero(buf, sizeof buf);
 424         i = 0;
 425         while (isdigit(*p) && i < sizeof buf)
 426                 buf[i++] = *p++;
 427         if (i == 0 || i >= sizeof buf || *p != ']')
 428                 return (1);
 429         *index = strtonum(buf, 0, 99, NULL);
 430         return (0);
 431 }
 432
 433 /* conf file stuff */
 434 #define SWM_CONF_WS     "\n= \t"
 435 #define SWM_CONF_FILE   "scrotwm.conf"
 436 int
 437 conf_load(char *filename)
 438 {
 439         FILE                    *config;
 440         char                    *line, *cp, *var, *val;
 441         size_t                  len, lineno = 0;
 442         int                     i, sc;
 443
 444         DNPRINTF(SWM_D_MISC, "conf_load: filename %s\n", filename);
 445
 446         if (filename == NULL)
 447                 return (1);
 448
 449         if ((config = fopen(filename, "r")) == NULL)
 450                 return (1);
 451
 452         for (sc = ScreenCount(display);;) {
 453                 if ((line = fparseln(config, &len, &lineno, NULL, 0)) == NULL)
 454                         if (feof(config))
 455                                 break;
 456                 cp = line;
 457                 cp += (long)strspn(cp, SWM_CONF_WS);
 458                 if (cp[0] == '\0') {
 459                         /* empty line */
 460                         free(line);
 461                         continue;
 462                 }
 463                 if ((var = strsep(&cp, SWM_CONF_WS)) == NULL || cp == NULL)
 464                         break;
 465                 cp += (long)strspn(cp, SWM_CONF_WS);
 466                 if ((val = strsep(&cp, SWM_CONF_WS)) == NULL)
 467                         break;
 468
 469                 DNPRINTF(SWM_D_MISC, "conf_load: %s=%s\n",var ,val);
 470                 switch (var[0]) {
 471                 case 'b':
 472                         if (!strncmp(var, "bar_enabled", strlen("bar_enabled")))
 473                                 bar_enabled = atoi(val);
 474                         else if (!varmatch(var, "bar_border", &i))
 475                                 setscreencolor(val, i, SWM_S_COLOR_BAR_BORDER);
 476                         else if (!varmatch(var, "bar_color", &i))
 477                                 setscreencolor(val, i, SWM_S_COLOR_BAR);
 478                         else if (!varmatch(var, "bar_font_color", &i))
 479                                 setscreencolor(val, i, SWM_S_COLOR_BAR_FONT);
 480                         else if (!strncmp(var, "bar_font", strlen("bar_font")))
 481                                 asprintf(&bar_fonts[0], "%s", val);
 482                         else if (!strncmp(var, "bar_action", strlen("bar_action")))
 483                                 asprintf(&bar_argv[0], "%s", val);
 484                         else if (!strncmp(var, "bar_delay", strlen("bar_delay")))
 485                                 bar_delay = atoi(val);
 486                         else
 487                                 goto bad;
 488                         break;
 489
 490                 case 'c':
 491                         if (!varmatch(var, "color_focus", &i))
 492                                 setscreencolor(val, i, SWM_S_COLOR_FOCUS);
 493                         else if (!varmatch(var, "color_unfocus", &i))
 494                                 setscreencolor(val, i, SWM_S_COLOR_UNFOCUS);
 495                         else if (!strncmp(var, "cycle_empty", strlen("cycle_empty")))
 496                                 cycle_visible = atoi(val);
 497                         else if (!strncmp(var, "cycle_visible", strlen("cycle_visible")))
 498                                 cycle_visible = atoi(val);
 499                         else
 500                                 goto bad;
 501                         break;
 502
 503                 case 'd':
 504                         if (!strncmp(var, "dialog_ratio",
 505                             strlen("dialog_ratio"))) {
 506                                 dialog_ratio = atof(val);
 507                                 if (dialog_ratio > 1.0 || dialog_ratio <= .3)
 508                                         dialog_ratio = .6;
 509                         } else
 510                                 goto bad;
 511                         break;
 512
 513                 case 's':
 514                         if (!strncmp(var, "spawn_term", strlen("spawn_term")))
 515                                 asprintf(&spawn_term[0], "%s", val);
 516                         if (!strncmp(var, "screenshot_enabled",
 517                             strlen("screenshot_enabled")))
 518                                 ss_enabled = atoi(val);
 519                         if (!strncmp(var, "screenshot_app",
 520                             strlen("screenshot_app")))
 521                                 asprintf(&spawn_screenshot[0], "%s", val);
 522                         break;
 523                 default:
 524                         goto bad;
 525                 }
 526                 free(line);
 527         }
 528
 529         fclose(config);
 530         return (0);
 531
 532 bad:
 533         errx(1, "invalid conf file entry: %s=%s", var, val);
 534 }
 535
 536 void
 537 socket_setnonblock(int fd)
 538 {
 539         int                     flags;
 540
 541         if ((flags = fcntl(fd, F_GETFL, 0)) == -1)
 542                 err(1, "fcntl F_GETFL");
 543         flags |= O_NONBLOCK;
 544         if ((flags = fcntl(fd, F_SETFL, flags)) == -1)
 545                 err(1, "fcntl F_SETFL");
 546 }
 547
 548 void
 549 bar_print(struct swm_region *r, char *s)
 550 {
 551         XClearWindow(display, r->bar_window);
 552         XSetForeground(display, bar_gc, r->s->c[SWM_S_COLOR_BAR_FONT].color);
 553         XDrawString(display, r->bar_window, bar_gc, 4, bar_fs->ascent, s,
 554             strlen(s));
 555 }
 556
 557 void
 558 bar_extra_stop(void)
 559 {
 560         if (bar_pipe[0]) {
 561                 close(bar_pipe[0]);
 562                 bzero(bar_pipe, sizeof bar_pipe);
 563         }
 564         if (bar_pid) {
 565                 kill(bar_pid, SIGTERM);
 566                 bar_pid = 0;
 567         }
 568         strlcpy(bar_ext, "", sizeof bar_ext);
 569         bar_extra = 0;
 570 }
 571
 572 void
 573 bar_update(void)
 574 {
 575         time_t                  tmt;
 576         struct tm               tm;
 577         struct swm_region       *r;
 578         int                     i, x;
 579         size_t                  len;
 580         char                    s[SWM_BAR_MAX];
 581         char                    loc[SWM_BAR_MAX];
 582         char                    *b;
 583
 584         if (bar_enabled == 0)
 585                 return;
 586
 587         if (bar_extra && bar_extra_running) {
 588                 /* ignore short reads; it'll correct itself */
 589                 while ((b = fgetln(stdin, &len)) != NULL)
 590                         if (b && b[len - 1] == '\n') {
 591                                 b[len - 1] = '\0';
 592                                 strlcpy(bar_ext, b, sizeof bar_ext);
 593                         }
 594                 if (b == NULL && errno != EAGAIN) {
 595                         fprintf(stderr, "bar_extra failed: errno: %d %s\n",
 596                             errno, strerror(errno));
 597                         bar_extra_stop();
 598                 }
 599         } else
 600                 strlcpy(bar_ext, "", sizeof bar_ext);
 601
 602         time(&tmt);
 603         localtime_r(&tmt, &tm);
 604         strftime(s, sizeof s, "%a %b %d %R %Z %Y", &tm);
 605         for (i = 0; i < ScreenCount(display); i++) {
 606                 x = 1;
 607                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
 608                         snprintf(loc, sizeof loc, "%s     %d:%d    %s    %s",
 609                             s, x++, r->ws->idx + 1, bar_ext, bar_vertext);
 610                         bar_print(r, loc);
 611                 }
 612         }
 613         XSync(display, False);
 614         alarm(bar_delay);
 615 }
 616
 617 void
 618 bar_signal(int sig)
 619 {
 620         bar_alarm = 1;
 621 }
 622
 623 void
 624 bar_toggle(struct swm_region *r, union arg *args)
 625 {
 626         struct swm_region       *tmpr;
 627         int                     i, j, sc = ScreenCount(display);
 628
 629         DNPRINTF(SWM_D_MISC, "bar_toggle\n");
 630
 631         if (bar_enabled) {
 632                 for (i = 0; i < sc; i++)
 633                         TAILQ_FOREACH(tmpr, &screens[i].rl, entry)
 634                                 XUnmapWindow(display, tmpr->bar_window);
 635         } else {
 636                 for (i = 0; i < sc; i++)
 637                         TAILQ_FOREACH(tmpr, &screens[i].rl, entry)
 638                                 XMapRaised(display, tmpr->bar_window);
 639         }
 640         bar_enabled = !bar_enabled;
 641         XSync(display, False);
 642         for (i = 0; i < sc; i++)
 643                 for (j = 0; j < SWM_WS_MAX; j++)
 644                         screens[i].ws[j].restack = 1;
 645
 646         stack();
 647         /* must be after stack */
 648         for (i = 0; i < sc; i++)
 649                 TAILQ_FOREACH(tmpr, &screens[i].rl, entry)
 650                         bar_update();
 651 }
 652
 653 void
 654 bar_refresh(void)
 655 {
 656         XSetWindowAttributes    wa;
 657         struct swm_region       *r;
 658         int                     i;
 659
 660         /* do this here because the conf file is in memory */
 661         if (bar_extra && bar_extra_running == 0 && bar_argv[0]) {
 662                 /* launch external status app */
 663                 bar_extra_running = 1;
 664                 if (pipe(bar_pipe) == -1)
 665                         err(1, "pipe error");
 666                 socket_setnonblock(bar_pipe[0]);
 667                 socket_setnonblock(bar_pipe[1]); /* XXX hmmm, really? */
 668                 if (dup2(bar_pipe[0], 0) == -1)
 669                         errx(1, "dup2");
 670                 if (dup2(bar_pipe[1], 1) == -1)
 671                         errx(1, "dup2");
 672                 if (signal(SIGPIPE, SIG_IGN) == SIG_ERR)
 673                         err(1, "could not disable SIGPIPE");
 674                 switch (bar_pid = fork()) {
 675                 case -1:
 676                         err(1, "cannot fork");
 677                         break;
 678                 case 0: /* child */
 679                         close(bar_pipe[0]);
 680                         execvp(bar_argv[0], bar_argv);
 681                         err(1, "%s external app failed", bar_argv[0]);
 682                         break;
 683                 default: /* parent */
 684                         close(bar_pipe[1]);
 685                         break;
 686                 }
 687         }
 688
 689         bzero(&wa, sizeof wa);
 690         for (i = 0; i < ScreenCount(display); i++)
 691                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
 692                         wa.border_pixel =
 693                             screens[i].c[SWM_S_COLOR_BAR_BORDER].color;
 694                         wa.background_pixel =
 695                             screens[i].c[SWM_S_COLOR_BAR].color;
 696                         XChangeWindowAttributes(display, r->bar_window,
 697                             CWBackPixel | CWBorderPixel, &wa);
 698                 }
 699         bar_update();
 700 }
 701
 702 void
 703 bar_setup(struct swm_region *r)
 704 {
 705         int                     i;
 706
 707         for (i = 0; bar_fonts[i] != NULL; i++) {
 708                 bar_fs = XLoadQueryFont(display, bar_fonts[i]);
 709                 if (bar_fs) {
 710                         bar_fidx = i;
 711                         break;
 712                 }
 713         }
 714         if (bar_fonts[i] == NULL)
 715                         errx(1, "couldn't load font");
 716         bar_height = bar_fs->ascent + bar_fs->descent + 3;
 717
 718         r->bar_window = XCreateSimpleWindow(display,
 719             r->s->root, X(r), Y(r), WIDTH(r) - 2, bar_height - 2,
 720             1, r->s->c[SWM_S_COLOR_BAR_BORDER].color,
 721             r->s->c[SWM_S_COLOR_BAR].color);
 722         bar_gc = XCreateGC(display, r->bar_window, 0, &bar_gcv);
 723         XSetFont(display, bar_gc, bar_fs->fid);
 724         XSelectInput(display, r->bar_window, VisibilityChangeMask);
 725         if (bar_enabled)
 726                 XMapRaised(display, r->bar_window);
 727         DNPRINTF(SWM_D_MISC, "bar_setup: bar_window %lu\n", r->bar_window);
 728
 729         if (signal(SIGALRM, bar_signal) == SIG_ERR)
 730                 err(1, "could not install bar_signal");
 731         bar_refresh();
 732 }
 733
 734 void
 735 version(struct swm_region *r, union arg *args)
 736 {
 737         bar_version = !bar_version;
 738         if (bar_version)
 739                 strlcpy(bar_vertext, cvstag, sizeof bar_vertext);
 740         else
 741                 strlcpy(bar_vertext, "", sizeof bar_vertext);
 742         bar_update();
 743 }
 744
 745 void
 746 config_win(struct ws_win *win)
 747 {
 748         XConfigureEvent         ce;
 749
 750         DNPRINTF(SWM_D_MISC, "config_win: win %lu x %d y %d w %d h %d\n",
 751             win->id, win->g.x, win->g.y, win->g.w, win->g.h);
 752         ce.type = ConfigureNotify;
 753         ce.display = display;
 754         ce.event = win->id;
 755         ce.window = win->id;
 756         ce.x = win->g.x;
 757         ce.y = win->g.y;
 758         ce.width = win->g.w;
 759         ce.height = win->g.h;
 760         ce.border_width = 1; /* XXX store this! */
 761         ce.above = None;
 762         ce.override_redirect = False;
 763         XSendEvent(display, win->id, False, StructureNotifyMask, (XEvent *)&ce);
 764 }
 765
 766 int
 767 count_win(struct workspace *ws, int count_transient)
 768 {
 769         struct ws_win           *win;
 770         int                     count = 0;
 771
 772         TAILQ_FOREACH(win, &ws->winlist, entry) {
 773                 if (count_transient == 0 && win->floating)
 774                         continue;
 775                 if (count_transient == 0 && win->transient)
 776                         continue;
 777                 count++;
 778         }
 779         DNPRINTF(SWM_D_MISC, "count_win: %d\n", count);
 780
 781         return (count);
 782 }
 783
 784 void
 785 quit(struct swm_region *r, union arg *args)
 786 {
 787         DNPRINTF(SWM_D_MISC, "quit\n");
 788         running = 0;
 789 }
 790
 791 void
 792 unmap_all(void)
 793 {
 794         struct ws_win           *win;
 795         int                     i, j;
 796
 797         for (i = 0; i < ScreenCount(display); i++)
 798                 for (j = 0; j < SWM_WS_MAX; j++)
 799                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
 800                                 XUnmapWindow(display, win->id);
 801 }
 802
 803 void
 804 restart(struct swm_region *r, union arg *args)
 805 {
 806         DNPRINTF(SWM_D_MISC, "restart: %s\n", start_argv[0]);
 807
 808         /* disable alarm because the following code may not be interrupted */
 809         alarm(0);
 810         if (signal(SIGALRM, SIG_IGN) == SIG_ERR)
 811                 errx(1, "can't disable alarm");
 812
 813         bar_extra_stop();
 814         bar_extra = 1;
 815         unmap_all();
 816         XCloseDisplay(display);
 817         execvp(start_argv[0], start_argv);
 818         fprintf(stderr, "execvp failed\n");
 819         perror(" failed");
 820         quit(NULL, NULL);
 821 }
 822
 823 struct swm_region *
 824 root_to_region(Window root)
 825 {
 826         struct swm_region       *r;
 827         Window                  rr, cr;
 828         int                     i, x, y, wx, wy;
 829         unsigned int            mask;
 830
 831         for (i = 0; i < ScreenCount(display); i++)
 832                 if (screens[i].root == root)
 833                         break;
 834
 835         if (XQueryPointer(display, screens[i].root,
 836             &rr, &cr, &x, &y, &wx, &wy, &mask) == False) {
 837                 /* if we can't query the pointer, grab the first region */
 838                 r = TAILQ_FIRST(&screens[i].rl);
 839         } else {
 840                 /* otherwise, choose a region based on pointer location */
 841                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
 842                         if (x >= X(r) && x <= X(r) + WIDTH(r) &&
 843                             y >= Y(r) && y <= Y(r) + HEIGHT(r))
 844                                 break;
 845                 }
 846
 847                 if (r == NULL)
 848                         r = TAILQ_FIRST(&screens[i].rl);
 849         }
 850         return (r);
 851 }
 852
 853 struct ws_win *
 854 find_window(Window id)
 855 {
 856         struct ws_win           *win;
 857         int                     i, j;
 858
 859         for (i = 0; i < ScreenCount(display); i++)
 860                 for (j = 0; j < SWM_WS_MAX; j++)
 861                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
 862                                 if (id == win->id)
 863                                         return (win);
 864         return (NULL);
 865 }
 866
 867 void
 868 spawn(struct swm_region *r, union arg *args)
 869 {
 870         char                    *ret;
 871         int                     si;
 872
 873         DNPRINTF(SWM_D_MISC, "spawn: %s\n", args->argv[0]);
 874         /*
 875          * The double-fork construct avoids zombie processes and keeps the code
 876          * clean from stupid signal handlers.
 877          */
 878         if (fork() == 0) {
 879                 if (fork() == 0) {
 880                         if (display)
 881                                 close(ConnectionNumber(display));
 882                         setenv("LD_PRELOAD", SWM_LIB, 1);
 883                         if (asprintf(&ret, "%d", r->ws->idx)) {
 884                                 setenv("_SWM_WS", ret, 1);
 885                                 free(ret);
 886                         }
 887                         if (asprintf(&ret, "%d", getpid())) {
 888                                 setenv("_SWM_PID", ret, 1);
 889                                 free(ret);
 890                         }
 891                         setsid();
 892                         /* kill stdin, mplayer, ssh-add etc. need that */
 893                         si = open("/dev/null", O_RDONLY, 0);
 894                         if (si == -1)
 895                                 err(1, "open /dev/null");
 896                         if (dup2(si, 0) == -1)
 897                                 err(1, "dup2 /dev/null");
 898                         execvp(args->argv[0], args->argv);
 899                         fprintf(stderr, "execvp failed\n");
 900                         perror(" failed");
 901                 }
 902                 exit(0);
 903         }
 904         wait(0);
 905 }
 906
 907 void
 908 spawnmenu(struct swm_region *r, union arg *args)
 909 {
 910         DNPRINTF(SWM_D_MISC, "spawnmenu\n");
 911
 912         spawn_menu[SWM_MENU_FN] = bar_fonts[bar_fidx];
 913         spawn_menu[SWM_MENU_NB] = r->s->c[SWM_S_COLOR_BAR].name;
 914         spawn_menu[SWM_MENU_NF] = r->s->c[SWM_S_COLOR_BAR_FONT].name;
 915         spawn_menu[SWM_MENU_SB] = r->s->c[SWM_S_COLOR_BAR_BORDER].name;
 916         spawn_menu[SWM_MENU_SF] = r->s->c[SWM_S_COLOR_BAR].name;
 917
 918         spawn(r, args);
 919 }
 920
 921 void
 922 unfocus_all(void)
 923 {
 924         struct ws_win           *win;
 925         int                     i, j;
 926
 927         DNPRINTF(SWM_D_FOCUS, "unfocus_all:\n");
 928
 929         for (i = 0; i < ScreenCount(display); i++)
 930                 for (j = 0; j < SWM_WS_MAX; j++)
 931                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry) {
 932                                 if (win->ws->r == NULL)
 933                                         continue;
 934                                 grabbuttons(win, 0);
 935                                 XSetWindowBorder(display, win->id,
 936                                     win->ws->r->s->c[SWM_S_COLOR_UNFOCUS].color);
 937                                 win->got_focus = 0;
 938                                 win->ws->focus = NULL;
 939                                 cur_focus = NULL;
 940                         }
 941 }
 942
 943 void
 944 focus_win(struct ws_win *win)
 945 {
 946         DNPRINTF(SWM_D_FOCUS, "focus_win: id: %lu\n", win ? win->id : 0);
 947
 948         if (win == NULL)
 949                 return;
 950
 951         unfocus_all();
 952         win->ws->focus = win;
 953         if (win->ws->r != NULL) {
 954                 cur_focus = win;
 955                 if (!win->got_focus) {
 956                         XSetWindowBorder(display, win->id,
 957                             win->ws->r->s->c[SWM_S_COLOR_FOCUS].color);
 958                         grabbuttons(win, 1);
 959                 }
 960                 win->got_focus = 1;
 961                 XSetInputFocus(display, win->id,
 962                     RevertToPointerRoot, CurrentTime);
 963         }
 964 }
 965
 966 void
 967 switchws(struct swm_region *r, union arg *args)
 968 {
 969         int                     wsid = args->id;
 970         struct swm_region       *this_r, *other_r;
 971         struct ws_win           *win;
 972         struct workspace        *new_ws, *old_ws;
 973
 974         this_r = r;
 975         old_ws = this_r->ws;
 976         new_ws = &this_r->s->ws[wsid];
 977
 978         DNPRINTF(SWM_D_WS, "switchws screen %d region %dx%d+%d+%d: "
 979             "%d -> %d\n", r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r),
 980             old_ws->idx, wsid);
 981
 982         if (new_ws == old_ws)
 983                 return;
 984
 985         other_r = new_ws->r;
 986         if (!other_r) {
 987                 /* if the other workspace is hidden, switch windows */
 988                 /* map new window first to prevent ugly blinking */
 989                 TAILQ_FOREACH(win, &new_ws->winlist, entry)
 990                         XMapRaised(display, win->id);
 991
 992                 TAILQ_FOREACH(win, &old_ws->winlist, entry)
 993                         XUnmapWindow(display, win->id);
 994                 old_ws->r = NULL;
 995                 old_ws->restack = 1;
 996         } else {
 997                 other_r->ws = old_ws;
 998                 old_ws->r = other_r;
 999         }
1000         this_r->ws = new_ws;
1001         new_ws->r = this_r;
1002
1003         ignore_enter = 1;
1004         /* set focus */
1005         if (new_ws->focus)
1006                 focus_win(new_ws->focus);
1007         stack();
1008         bar_update();
1009 }
1010
1011 void
1012 cyclews(struct swm_region *r, union arg *args)
1013 {
1014         union                   arg a;
1015         struct swm_screen       *s = r->s;
1016
1017         DNPRINTF(SWM_D_WS, "cyclews id %d "
1018             "in screen %d region %dx%d+%d+%d ws %d\n", args->id,
1019             r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
1020
1021         a.id = r->ws->idx;
1022         do {
1023                 switch (args->id) {
1024                 case SWM_ARG_ID_CYCLEWS_UP:
1025                         if (a.id < SWM_WS_MAX - 1)
1026                                 a.id++;
1027                         else
1028                                 a.id = 0;
1029                         break;
1030                 case SWM_ARG_ID_CYCLEWS_DOWN:
1031                         if (a.id > 0)
1032                                 a.id--;
1033                         else
1034                                 a.id = SWM_WS_MAX - 1;
1035                         break;
1036                 default:
1037                         return;
1038                 };
1039
1040                 if (cycle_empty == 0 && TAILQ_EMPTY(&s->ws[a.id].winlist))
1041                         continue;
1042                 if (cycle_visible == 0 && s->ws[a.id].r != NULL)
1043                         continue;
1044
1045                 switchws(r, &a);
1046         } while (a.id != r->ws->idx);
1047 }
1048
1049 void
1050 cyclescr(struct swm_region *r, union arg *args)
1051 {
1052         struct swm_region       *rr;
1053         int                     i;
1054
1055         i = r->s->idx;
1056         switch (args->id) {
1057         case SWM_ARG_ID_CYCLESC_UP:
1058                 rr = TAILQ_NEXT(r, entry);
1059                 if (rr == NULL)
1060                         rr = TAILQ_FIRST(&screens[i].rl);
1061                 break;
1062         case SWM_ARG_ID_CYCLESC_DOWN:
1063                 rr = TAILQ_PREV(r, swm_region_list, entry);
1064                 if (rr == NULL)
1065                         rr = TAILQ_LAST(&screens[i].rl, swm_region_list);
1066                 break;
1067         default:
1068                 return;
1069         };
1070         unfocus_all();
1071         XSetInputFocus(display, PointerRoot, RevertToPointerRoot, CurrentTime);
1072         XWarpPointer(display, None, rr->s[i].root, 0, 0, 0, 0, rr->g.x,
1073             rr->g.y + bar_enabled ? bar_height : 0);
1074 }
1075
1076 void
1077 swapwin(struct swm_region *r, union arg *args)
1078 {
1079         struct ws_win           *target;
1080         struct ws_win_list      *wl;
1081
1082
1083         DNPRINTF(SWM_D_WS, "swapwin id %d "
1084             "in screen %d region %dx%d+%d+%d ws %d\n", args->id,
1085             r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
1086         if (cur_focus == NULL)
1087                 return;
1088
1089         wl = &cur_focus->ws->winlist;
1090
1091         switch (args->id) {
1092         case SWM_ARG_ID_SWAPPREV:
1093                 target = TAILQ_PREV(cur_focus, ws_win_list, entry);
1094                 TAILQ_REMOVE(wl, cur_focus, entry);
1095                 if (target == NULL)
1096                         TAILQ_INSERT_TAIL(wl, cur_focus, entry);
1097                 else
1098                         TAILQ_INSERT_BEFORE(target, cur_focus, entry);
1099                 break;
1100         case SWM_ARG_ID_SWAPNEXT:
1101                 target = TAILQ_NEXT(cur_focus, entry);
1102                 TAILQ_REMOVE(wl, cur_focus, entry);
1103                 if (target == NULL)
1104                         TAILQ_INSERT_HEAD(wl, cur_focus, entry);
1105                 else
1106                         TAILQ_INSERT_AFTER(wl, target, cur_focus, entry);
1107                 break;
1108         case SWM_ARG_ID_SWAPMAIN:
1109                 target = TAILQ_FIRST(wl);
1110                 if (target == cur_focus)
1111                         return;
1112                 TAILQ_REMOVE(wl, target, entry);
1113                 TAILQ_INSERT_BEFORE(cur_focus, target, entry);
1114                 TAILQ_REMOVE(wl, cur_focus, entry);
1115                 TAILQ_INSERT_HEAD(wl, cur_focus, entry);
1116                 break;
1117         default:
1118                 DNPRINTF(SWM_D_MOVE, "invalid id: %d\n", args->id);
1119                 return;
1120         }
1121
1122         ignore_enter = 2;
1123         stack();
1124 }
1125
1126 void
1127 focus(struct swm_region *r, union arg *args)
1128 {
1129         struct ws_win           *winfocus, *winlostfocus;
1130         struct ws_win_list      *wl;
1131
1132         DNPRINTF(SWM_D_FOCUS, "focus: id %d\n", args->id);
1133         if (cur_focus == NULL)
1134                 return;
1135
1136         wl = &cur_focus->ws->winlist;
1137
1138         winlostfocus = cur_focus;
1139
1140         switch (args->id) {
1141         case SWM_ARG_ID_FOCUSPREV:
1142                 winfocus = TAILQ_PREV(cur_focus, ws_win_list, entry);
1143                 if (winfocus == NULL)
1144                         winfocus = TAILQ_LAST(wl, ws_win_list);
1145                 break;
1146
1147         case SWM_ARG_ID_FOCUSNEXT:
1148                 winfocus = TAILQ_NEXT(cur_focus, entry);
1149                 if (winfocus == NULL)
1150                         winfocus = TAILQ_FIRST(wl);
1151                 break;
1152
1153         case SWM_ARG_ID_FOCUSMAIN:
1154                 winfocus = TAILQ_FIRST(wl);
1155                 break;
1156
1157         default:
1158                 return;
1159         }
1160
1161         if (winfocus == winlostfocus || winfocus == NULL)
1162                 return;
1163
1164         XMapRaised(display, winfocus->id);
1165         focus_win(winfocus);
1166         XSync(display, False);
1167 }
1168
1169 void
1170 cycle_layout(struct swm_region *r, union arg *args)
1171 {
1172         struct workspace        *ws = r->ws;
1173
1174         DNPRINTF(SWM_D_EVENT, "cycle_layout: workspace: %d\n", ws->idx);
1175
1176         ws->cur_layout++;
1177         if (ws->cur_layout->l_stack == NULL)
1178                 ws->cur_layout = &layouts[0];
1179         ignore_enter = 1;
1180         stack();
1181 }
1182
1183 void
1184 stack_config(struct swm_region *r, union arg *args)
1185 {
1186         struct workspace        *ws = r->ws;
1187
1188         DNPRINTF(SWM_D_STACK, "stack_config for workspace %d (id %d\n",
1189             args->id, ws->idx);
1190
1191         if (ws->cur_layout->l_config != NULL)
1192                 ws->cur_layout->l_config(ws, args->id);
1193
1194         if (args->id != SWM_ARG_ID_STACKINIT);
1195                 stack();
1196 }
1197
1198 void
1199 stack(void) {
1200         struct swm_geometry     g;
1201         struct swm_region       *r;
1202         int                     i, j;
1203
1204         DNPRINTF(SWM_D_STACK, "stack\n");
1205
1206         for (i = 0; i < ScreenCount(display); i++) {
1207                 j = 0;
1208                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
1209                         DNPRINTF(SWM_D_STACK, "stacking workspace %d "
1210                             "(screen %d, region %d)\n", r->ws->idx, i, j++);
1211
1212                         /* start with screen geometry, adjust for bar */
1213                         g = r->g;
1214                         g.w -= 2;
1215                         g.h -= 2;
1216                         if (bar_enabled) {
1217                                 g.y += bar_height;
1218                                 g.h -= bar_height;
1219                         }
1220
1221                         r->ws->restack = 0;
1222                         r->ws->cur_layout->l_stack(r->ws, &g);
1223                 }
1224         }
1225         XSync(display, False);
1226 }
1227
1228 void
1229 stack_floater(struct ws_win *win, struct swm_region *r)
1230 {
1231         unsigned int            mask;
1232         XWindowChanges          wc;
1233
1234         bzero(&wc, sizeof wc);
1235         mask = CWX | CWY | CWBorderWidth | CWWidth | CWHeight;
1236         wc.border_width = 1;
1237         if (win->transient) {
1238                 win->g.w = (double)WIDTH(r) * dialog_ratio;
1239                 win->g.h = (double)HEIGHT(r) * dialog_ratio;
1240         }
1241         wc.width = win->g.w;
1242         wc.height = win->g.h;
1243         if (win->manual) {
1244                 wc.x = win->g.x;
1245                 wc.y = win->g.y;
1246         } else {
1247                 wc.x = (WIDTH(r) - win->g.w) / 2;
1248                 wc.y = (HEIGHT(r) - win->g.h) / 2;
1249         }
1250
1251         DNPRINTF(SWM_D_STACK, "stack_floater: win %lu x %d y %d w %d h %d\n",
1252             win->id, wc.x, wc.y, wc.width, wc.height);
1253
1254         XConfigureWindow(display, win->id, mask, &wc);
1255 }
1256
1257 #define SWAPXY(g)       do {                            \
1258         int tmp;                                        \
1259         tmp = (g)->y; (g)->y = (g)->x; (g)->x = tmp;    \
1260         tmp = (g)->h; (g)->h = (g)->w; (g)->w = tmp;    \
1261 } while (0)
1262 void
1263 stack_master(struct workspace *ws, struct swm_geometry *g, int rot, int flip)
1264 {
1265         XWindowChanges          wc;
1266         struct swm_geometry     win_g, r_g = *g;
1267         struct ws_win           *win, *winfocus;
1268         int                     i, j, w_inc, h_inc, w_base, h_base;
1269         int                     hrh, extra, h_slice, last_h = 0;
1270         int                     split, colno, winno, mwin, msize, mscale;
1271         int                     remain, missing, v_slice;;
1272         unsigned int            mask;
1273
1274         DNPRINTF(SWM_D_STACK, "stack_master: workspace: %d\n rot=%s flip=%s",
1275             ws->idx, rot ? "yes" : "no", flip ? "yes" : "no");
1276
1277         if ((winno = count_win(ws, 0)) == 0)
1278                 return;
1279
1280         if (ws->focus == NULL)
1281                 ws->focus = TAILQ_FIRST(&ws->winlist);
1282         winfocus = cur_focus ? cur_focus : ws->focus;
1283
1284         win = TAILQ_FIRST(&ws->winlist);
1285         if (rot) {
1286                 w_inc = win->sh.width_inc;
1287                 w_base = win->sh.base_width;
1288                 mwin = ws->l_state.horizontal_mwin;
1289                 mscale = ws->l_state.horizontal_msize;
1290                 SWAPXY(&r_g);
1291         } else {
1292                 w_inc = win->sh.height_inc;
1293                 w_base = win->sh.base_height;
1294                 mwin = ws->l_state.vertical_mwin;
1295                 mscale = ws->l_state.vertical_msize;
1296         }
1297         win_g = r_g;
1298
1299         h_slice = r_g.h / SWM_H_SLICE;
1300         if (mwin && winno > mwin) {
1301                 v_slice = r_g.w / SWM_V_SLICE;
1302
1303                 split = mwin;
1304                 colno = split;
1305                 msize = v_slice * mscale;
1306
1307                 if (w_inc > 1 && w_inc < v_slice) {
1308                         /* adjust for window's requested size increment */
1309                         remain = (win_g.w - w_base) % w_inc;
1310                         missing = w_inc - remain;
1311
1312                         if (missing <= extra || j == 0) {
1313                                 extra -= missing;
1314                                 win_g.w += missing;
1315                         } else {
1316                                 win_g.w -= remain;
1317                                 extra += remain;
1318                         }
1319                 }
1320
1321                 win_g.w = msize;
1322                 if (flip)
1323                         win_g.x += r_g.w - msize;
1324         } else {
1325                 colno = winno;
1326                 split = 0;
1327         }
1328         hrh = r_g.h / colno;
1329         extra = r_g.h - (colno * hrh);
1330         win_g.h = hrh - 2;
1331
1332         /*  stack all the tiled windows */
1333         i = j = 0;
1334         TAILQ_FOREACH(win, &ws->winlist, entry) {
1335                 if (win->transient != 0 || win->floating != 0)
1336                         continue;
1337
1338                 if (split && i == split) {
1339                         colno = winno - split;
1340                         hrh = (r_g.h / colno);
1341                         extra = r_g.h - (colno * hrh);
1342                         if (flip)
1343                                 win_g.x = r_g.x;
1344                         else
1345                                 win_g.x += msize + 2;
1346                         win_g.w = r_g.w - (msize + 2);
1347                         j = 0;
1348                 }
1349                 win_g.h = hrh - 2;
1350                 if (rot) {
1351                         h_inc = win->sh.width_inc;
1352                         h_base = win->sh.base_width;
1353                 } else {
1354                         h_inc = win->sh.height_inc;
1355                         h_base = win->sh.base_height;
1356                 }
1357                 if (j == colno - 1) {
1358                         win_g.h = hrh + extra;
1359                 } else if (h_inc > 1 && h_inc < h_slice) {
1360                         /* adjust for window's requested size increment */
1361                         remain = (win_g.h - h_base) % h_inc;
1362                         missing = h_inc - remain;
1363
1364                         if (missing <= extra || j == 0) {
1365                                 extra -= missing;
1366                                 win_g.h += missing;
1367                         } else {
1368                                 win_g.h -= remain;
1369                                 extra += remain;
1370                         }
1371                 }
1372
1373                 if (j == 0)
1374                         win_g.y = r_g.y;
1375                 else
1376                         win_g.y += last_h + 2;
1377
1378                 bzero(&wc, sizeof wc);
1379                 wc.border_width = 1;
1380                 if (rot) {
1381                         win->g.x = wc.x = win_g.y;
1382                         win->g.y = wc.y = win_g.x;
1383                         win->g.w = wc.width = win_g.h;
1384                         win->g.h = wc.height = win_g.w;
1385                 } else {
1386                         win->g.x = wc.x = win_g.x;
1387                         win->g.y = wc.y = win_g.y;
1388                         win->g.w = wc.width = win_g.w;
1389                         win->g.h = wc.height = win_g.h;
1390                 }
1391                 mask = CWX | CWY | CWWidth | CWHeight | CWBorderWidth;
1392                 XConfigureWindow(display, win->id, mask, &wc);
1393                 XMapRaised(display, win->id);
1394                 /*
1395                 fprintf(stderr, "vertical_stack: win %d x %d y %d w %d h %d bw %d\n", win->id, win->g.x, win->g.y, win->g.w , win->g.h, wc.border_width);
1396                 */
1397
1398                 last_h = win_g.h;
1399                 i++;
1400                 j++;
1401         }
1402
1403         /* now, stack all the floaters and transients */
1404         TAILQ_FOREACH(win, &ws->winlist, entry) {
1405                 if (win->transient == 0 && win->floating == 0)
1406                         continue;
1407
1408                 stack_floater(win, ws->r);
1409                 XMapRaised(display, win->id);
1410         }
1411
1412         if (winfocus)
1413                 focus_win(winfocus); /* has to be done outside of the loop */
1414 }
1415
1416 void
1417 vertical_config(struct workspace *ws, int id)
1418 {
1419         DNPRINTF(SWM_D_STACK, "vertical_resize: workspace: %d\n", ws->idx);
1420
1421         switch (id) {
1422         case SWM_ARG_ID_STACKRESET:
1423         case SWM_ARG_ID_STACKINIT:
1424                 ws->l_state.vertical_msize = SWM_V_SLICE / 2;
1425                 ws->l_state.vertical_mwin = 1;
1426                 break;
1427         case SWM_ARG_ID_MASTERSHRINK:
1428                 if (ws->l_state.vertical_msize > 1)
1429                         ws->l_state.vertical_msize--;
1430                 break;
1431         case SWM_ARG_ID_MASTERGROW:
1432                 if (ws->l_state.vertical_msize < SWM_V_SLICE - 1)
1433                         ws->l_state.vertical_msize++;
1434                 break;
1435         case SWM_ARG_ID_MASTERADD:
1436                 ws->l_state.vertical_mwin++;
1437                 break;
1438         case SWM_ARG_ID_MASTERDEL:
1439                 if (ws->l_state.vertical_mwin > 0)
1440                         ws->l_state.vertical_mwin--;
1441                 break;
1442         default:
1443                 return;
1444         }
1445 }
1446
1447 void
1448 vertical_stack(struct workspace *ws, struct swm_geometry *g)
1449 {
1450         DNPRINTF(SWM_D_STACK, "vertical_stack: workspace: %d\n", ws->idx);
1451
1452         stack_master(ws, g, 0, 0);
1453 }
1454
1455 void
1456 horizontal_config(struct workspace *ws, int id)
1457 {
1458         DNPRINTF(SWM_D_STACK, "horizontal_config: workspace: %d\n", ws->idx);
1459
1460         switch (id) {
1461         case SWM_ARG_ID_STACKRESET:
1462         case SWM_ARG_ID_STACKINIT:
1463                 ws->l_state.horizontal_mwin = 1;
1464                 ws->l_state.horizontal_msize = SWM_H_SLICE / 2;
1465                 break;
1466         case SWM_ARG_ID_MASTERSHRINK:
1467                 if (ws->l_state.horizontal_msize > 1)
1468                         ws->l_state.horizontal_msize--;
1469                 break;
1470         case SWM_ARG_ID_MASTERGROW:
1471                 if (ws->l_state.horizontal_msize < SWM_H_SLICE - 1)
1472                         ws->l_state.horizontal_msize++;
1473                 break;
1474         case SWM_ARG_ID_MASTERADD:
1475                 ws->l_state.horizontal_mwin++;
1476                 break;
1477         case SWM_ARG_ID_MASTERDEL:
1478                 if (ws->l_state.horizontal_mwin > 0)
1479                         ws->l_state.horizontal_mwin--;
1480                 break;
1481         default:
1482                 return;
1483         }
1484 }
1485
1486 void
1487 horizontal_stack(struct workspace *ws, struct swm_geometry *g)
1488 {
1489         DNPRINTF(SWM_D_STACK, "vertical_stack: workspace: %d\n", ws->idx);
1490
1491         stack_master(ws, g, 1, 0);
1492 }
1493
1494 /* fullscreen view */
1495 void
1496 max_stack(struct workspace *ws, struct swm_geometry *g) {
1497         XWindowChanges          wc;
1498         struct swm_geometry     gg = *g;
1499         struct ws_win           *win, *winfocus;
1500         unsigned int            mask;
1501
1502         DNPRINTF(SWM_D_STACK, "max_stack: workspace: %d\n", ws->idx);
1503
1504         if (count_win(ws, 0) == 0)
1505                 return;
1506
1507         if (ws->focus == NULL)
1508                 ws->focus = TAILQ_FIRST(&ws->winlist);
1509         winfocus = cur_focus ? cur_focus : ws->focus;
1510
1511         TAILQ_FOREACH(win, &ws->winlist, entry) {
1512                 if (win->transient != 0 || win->floating != 0) {
1513                         if (win == ws->focus) {
1514                                 /* XXX maximize? */
1515                                 stack_floater(win, ws->r);
1516                                 XMapRaised(display, win->id);
1517                         } else
1518                                 XUnmapWindow(display, win->id);
1519                 } else {
1520                         bzero(&wc, sizeof wc);
1521                         wc.border_width = 1;
1522                         win->g.x = wc.x = gg.x;
1523                         win->g.y = wc.y = gg.y;
1524                         win->g.w = wc.width = gg.w;
1525                         win->g.h = wc.height = gg.h;
1526                         mask = CWX | CWY | CWWidth | CWHeight | CWBorderWidth;
1527                         XConfigureWindow(display, win->id, mask, &wc);
1528
1529                         if (win == ws->focus) {
1530                                 XMapRaised(display, win->id);
1531                         } else
1532                                 XUnmapWindow(display, win->id);
1533                 }
1534         }
1535
1536         if (winfocus)
1537                 focus_win(winfocus); /* has to be done outside of the loop */
1538 }
1539
1540 void
1541 send_to_ws(struct swm_region *r, union arg *args)
1542 {
1543         int                     wsid = args->id;
1544         struct ws_win           *win = cur_focus;
1545         struct workspace        *ws, *nws;
1546         Atom                    ws_idx_atom = 0;
1547         unsigned char           ws_idx_str[SWM_PROPLEN];
1548
1549         if (win == NULL)
1550                 return;
1551
1552         DNPRINTF(SWM_D_MOVE, "send_to_ws: win: %lu\n", win->id);
1553
1554         ws = win->ws;
1555         nws = &win->s->ws[wsid];
1556
1557         XUnmapWindow(display, win->id);
1558
1559         /* find a window to focus */
1560         ws->focus = TAILQ_PREV(win, ws_win_list, entry);
1561         if (ws->focus == NULL)
1562                 ws->focus = TAILQ_FIRST(&ws->winlist);
1563         if (ws->focus == win)
1564                 ws->focus = NULL;
1565
1566         TAILQ_REMOVE(&ws->winlist, win, entry);
1567
1568         TAILQ_INSERT_TAIL(&nws->winlist, win, entry);
1569         win->ws = nws;
1570
1571         /* Try to update the window's workspace property */
1572         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
1573         if (ws_idx_atom &&
1574             snprintf(ws_idx_str, SWM_PROPLEN, "%d", nws->idx) < SWM_PROPLEN) {
1575                 DNPRINTF(SWM_D_PROP, "setting property _SWM_WS to %s\n",
1576                     ws_idx_str);
1577                 XChangeProperty(display, win->id, ws_idx_atom, XA_STRING, 8,
1578                     PropModeReplace, ws_idx_str, SWM_PROPLEN);
1579         }
1580
1581         if (count_win(nws, 1) == 1)
1582                 nws->focus = win;
1583         ws->restack = 1;
1584         nws->restack = 1;
1585
1586         stack();
1587 }
1588
1589 void
1590 wkill(struct swm_region *r, union arg *args)
1591 {
1592         DNPRINTF(SWM_D_MISC, "wkill\n");
1593         if(r->ws->focus != NULL)
1594                 XKillClient(display, r->ws->focus->id);
1595 }
1596
1597 void
1598 screenshot(struct swm_region *r, union arg *args)
1599 {
1600         union arg                       a;
1601
1602         DNPRINTF(SWM_D_MISC, "screenshot\n");
1603
1604         if (ss_enabled == 0)
1605                 return;
1606
1607         switch (args->id) {
1608         case SWM_ARG_ID_SS_ALL:
1609                 spawn_screenshot[1] = "full";
1610                 break;
1611         case SWM_ARG_ID_SS_WINDOW:
1612                 spawn_screenshot[1] = "window";
1613                 break;
1614         default:
1615                 return;
1616         }
1617         a.argv = spawn_screenshot;
1618         spawn(r, &a);
1619 }
1620
1621 void
1622 floating_toggle(struct swm_region *r, union arg *args)
1623 {
1624         struct ws_win   *win = cur_focus;
1625
1626         if (win == NULL)
1627                 return;
1628
1629         win->floating = !win->floating;
1630         win->manual = 0;
1631         stack();
1632         focus_win(win);
1633 }
1634
1635 /* key definitions */
1636 struct key {
1637         unsigned int            mod;
1638         KeySym                  keysym;
1639         void                    (*func)(struct swm_region *r, union arg *);
1640         union arg               args;
1641 } keys[] = {
1642         /* modifier             key     function                argument */
1643         { MODKEY,               XK_space,       cycle_layout,   {0} },
1644         { MODKEY | ShiftMask,   XK_space,       stack_config,   {.id = SWM_ARG_ID_STACKRESET} },
1645         { MODKEY,               XK_h,           stack_config,   {.id = SWM_ARG_ID_MASTERSHRINK} },
1646         { MODKEY,               XK_l,           stack_config,   {.id = SWM_ARG_ID_MASTERGROW} },
1647         { MODKEY,               XK_comma,       stack_config,   {.id = SWM_ARG_ID_MASTERADD} },
1648         { MODKEY,               XK_period,      stack_config,   {.id = SWM_ARG_ID_MASTERDEL} },
1649         { MODKEY,               XK_Return,      swapwin,        {.id = SWM_ARG_ID_SWAPMAIN} },
1650         { MODKEY,               XK_j,           focus,          {.id = SWM_ARG_ID_FOCUSNEXT} },
1651         { MODKEY,               XK_k,           focus,          {.id = SWM_ARG_ID_FOCUSPREV} },
1652         { MODKEY | ShiftMask,   XK_j,           swapwin,        {.id = SWM_ARG_ID_SWAPNEXT} },
1653         { MODKEY | ShiftMask,   XK_k,           swapwin,        {.id = SWM_ARG_ID_SWAPPREV} },
1654         { MODKEY | ShiftMask,   XK_Return,      spawn,          {.argv = spawn_term} },
1655         { MODKEY,               XK_p,           spawnmenu,      {.argv = spawn_menu} },
1656         { MODKEY | ShiftMask,   XK_q,           quit,           {0} },
1657         { MODKEY,               XK_q,           restart,        {0} },
1658         { MODKEY,               XK_m,           focus,          {.id = SWM_ARG_ID_FOCUSMAIN} },
1659         { MODKEY,               XK_1,           switchws,       {.id = 0} },
1660         { MODKEY,               XK_2,           switchws,       {.id = 1} },
1661         { MODKEY,               XK_3,           switchws,       {.id = 2} },
1662         { MODKEY,               XK_4,           switchws,       {.id = 3} },
1663         { MODKEY,               XK_5,           switchws,       {.id = 4} },
1664         { MODKEY,               XK_6,           switchws,       {.id = 5} },
1665         { MODKEY,               XK_7,           switchws,       {.id = 6} },
1666         { MODKEY,               XK_8,           switchws,       {.id = 7} },
1667         { MODKEY,               XK_9,           switchws,       {.id = 8} },
1668         { MODKEY,               XK_0,           switchws,       {.id = 9} },
1669         { MODKEY,               XK_Right,       cyclews,        {.id = SWM_ARG_ID_CYCLEWS_UP} },
1670         { MODKEY,               XK_Left,        cyclews,        {.id = SWM_ARG_ID_CYCLEWS_DOWN} },
1671         { MODKEY | ShiftMask,   XK_Right,       cyclescr,       {.id = SWM_ARG_ID_CYCLESC_UP} },
1672         { MODKEY | ShiftMask,   XK_Left,        cyclescr,       {.id = SWM_ARG_ID_CYCLESC_DOWN} },
1673         { MODKEY | ShiftMask,   XK_1,           send_to_ws,     {.id = 0} },
1674         { MODKEY | ShiftMask,   XK_2,           send_to_ws,     {.id = 1} },
1675         { MODKEY | ShiftMask,   XK_3,           send_to_ws,     {.id = 2} },
1676         { MODKEY | ShiftMask,   XK_4,           send_to_ws,     {.id = 3} },
1677         { MODKEY | ShiftMask,   XK_5,           send_to_ws,     {.id = 4} },
1678         { MODKEY | ShiftMask,   XK_6,           send_to_ws,     {.id = 5} },
1679         { MODKEY | ShiftMask,   XK_7,           send_to_ws,     {.id = 6} },
1680         { MODKEY | ShiftMask,   XK_8,           send_to_ws,     {.id = 7} },
1681         { MODKEY | ShiftMask,   XK_9,           send_to_ws,     {.id = 8} },
1682         { MODKEY | ShiftMask,   XK_0,           send_to_ws,     {.id = 9} },
1683         { MODKEY,               XK_b,           bar_toggle,     {0} },
1684         { MODKEY,               XK_Tab,         focus,          {.id = SWM_ARG_ID_FOCUSNEXT} },
1685         { MODKEY | ShiftMask,   XK_Tab,         focus,          {.id = SWM_ARG_ID_FOCUSPREV} },
1686         { MODKEY | ShiftMask,   XK_x,           wkill,          {0} },
1687         { MODKEY,               XK_s,           screenshot,     {.id = SWM_ARG_ID_SS_ALL} },
1688         { MODKEY | ShiftMask,   XK_s,           screenshot,     {.id = SWM_ARG_ID_SS_WINDOW} },
1689         { MODKEY,               XK_t,           floating_toggle,{0} },
1690         { MODKEY | ShiftMask,   XK_v,           version,        {0} },
1691         { MODKEY | ShiftMask,   XK_Delete,      spawn,          {.argv = spawn_lock} },
1692 };
1693
1694 void
1695 resize_window(struct ws_win *win, int center)
1696 {
1697         unsigned int            mask;
1698         XWindowChanges          wc;
1699         struct swm_region       *r;
1700
1701         r = root_to_region(win->wa.root);
1702         bzero(&wc, sizeof wc);
1703         mask = CWBorderWidth | CWWidth | CWHeight;
1704         wc.border_width = 1;
1705         wc.width = win->g.w;
1706         wc.height = win->g.h;
1707         if (center == SWM_ARG_ID_CENTER) {
1708                 wc.x = (WIDTH(r) - win->g.w) / 2;
1709                 wc.y = (HEIGHT(r) - win->g.h) / 2;
1710                 mask |= CWX | CWY;
1711         }
1712
1713         DNPRINTF(SWM_D_STACK, "resize_window: win %lu x %d y %d w %d h %d\n",
1714             win->id, wc.x, wc.y, wc.width, wc.height);
1715
1716         XConfigureWindow(display, win->id, mask, &wc);
1717         config_win(win);
1718 }
1719
1720 void
1721 resize(struct ws_win *win, union arg *args)
1722 {
1723         XEvent                  ev;
1724         Time                    time = 0;
1725
1726         DNPRINTF(SWM_D_MOUSE, "resize: win %d floating %d trans %d\n",
1727             win->id, win->floating, win->transient);
1728
1729         if (!(win->transient != 0 || win->floating != 0))
1730                 return;
1731
1732         if (XGrabPointer(display, win->id, False, MOUSEMASK, GrabModeAsync,
1733             GrabModeAsync, None, None /* cursor */, CurrentTime) != GrabSuccess)
1734                 return;
1735         XWarpPointer(display, None, win->id, 0, 0, 0, 0, win->g.w, win->g.h);
1736         do {
1737                 XMaskEvent(display, MOUSEMASK | ExposureMask |
1738                     SubstructureRedirectMask, &ev);
1739                 switch(ev.type) {
1740                 case ConfigureRequest:
1741                 case Expose:
1742                 case MapRequest:
1743                         handler[ev.type](&ev);
1744                         break;
1745                 case MotionNotify:
1746                         if (ev.xmotion.x < 0)
1747                                 ev.xmotion.x = 0;
1748                         if (ev.xmotion.y < 0)
1749                                 ev.xmotion.y = 0;
1750                         win->g.w = ev.xmotion.x;
1751                         win->g.h = ev.xmotion.y;
1752
1753                         /* not free, don't sync more than 60 times / second */
1754                         if ((ev.xmotion.time - time) > (1000 / 60) ) {
1755                                 time = ev.xmotion.time;
1756                                 XSync(display, False);
1757                                 resize_window(win, args->id);
1758                         }
1759                         break;
1760                 }
1761         } while (ev.type != ButtonRelease);
1762         if (time) {
1763                 XSync(display, False);
1764                 resize_window(win, args->id);
1765         }
1766         XWarpPointer(display, None, win->id, 0, 0, 0, 0, win->g.w - 1,
1767             win->g.h - 1);
1768         XUngrabPointer(display, CurrentTime);
1769
1770         /* drain events */
1771         while (XCheckMaskEvent(display, EnterWindowMask, &ev));
1772 }
1773
1774 void
1775 move_window(struct ws_win *win)
1776 {
1777         unsigned int            mask;
1778         XWindowChanges          wc;
1779         struct swm_region       *r;
1780
1781         r = root_to_region(win->wa.root);
1782         bzero(&wc, sizeof wc);
1783         mask = CWX | CWY;
1784         wc.x = win->g.x;
1785         wc.y = win->g.y;
1786
1787         DNPRINTF(SWM_D_STACK, "move_window: win %lu x %d y %d w %d h %d\n",
1788             win->id, wc.x, wc.y, wc.width, wc.height);
1789
1790         XConfigureWindow(display, win->id, mask, &wc);
1791         config_win(win);
1792 }
1793
1794 void
1795 move(struct ws_win *win, union arg *args)
1796 {
1797         XEvent                  ev;
1798         Time                    time = 0;
1799         int                     restack = 0;
1800
1801         DNPRINTF(SWM_D_MOUSE, "move: win %d floating %d trans %d\n",
1802             win->id, win->floating, win->transient);
1803
1804         if (win->floating == 0) {
1805                 win->floating = 1;
1806                 win->manual = 1;
1807                 restack = 1;
1808         }
1809
1810         if (XGrabPointer(display, win->id, False, MOUSEMASK, GrabModeAsync,
1811             GrabModeAsync, None, None /* cursor */, CurrentTime) != GrabSuccess)
1812                 return;
1813         XWarpPointer(display, None, win->id, 0, 0, 0, 0, 0, 0);
1814         do {
1815                 XMaskEvent(display, MOUSEMASK | ExposureMask |
1816                     SubstructureRedirectMask, &ev);
1817                 switch(ev.type) {
1818                 case ConfigureRequest:
1819                 case Expose:
1820                 case MapRequest:
1821                         handler[ev.type](&ev);
1822                         break;
1823                 case MotionNotify:
1824                         win->g.x = ev.xmotion.x_root;
1825                         win->g.y = ev.xmotion.y_root;
1826
1827                         /* not free, don't sync more than 60 times / second */
1828                         if ((ev.xmotion.time - time) > (1000 / 60) ) {
1829                                 time = ev.xmotion.time;
1830                                 XSync(display, False);
1831                                 move_window(win);
1832                         }
1833                         break;
1834                 }
1835         } while (ev.type != ButtonRelease);
1836         if (time) {
1837                 XSync(display, False);
1838                 move_window(win);
1839         }
1840         XWarpPointer(display, None, win->id, 0, 0, 0, 0, 0, 0);
1841         XUngrabPointer(display, CurrentTime);
1842         if (restack)
1843                 stack();
1844
1845         /* drain events */
1846         while (XCheckMaskEvent(display, EnterWindowMask, &ev));
1847 }
1848
1849 /* mouse */
1850 enum { client_click, root_click };
1851 struct button {
1852         unsigned int            action;
1853         unsigned int            mask;
1854         unsigned int            button;
1855         void                    (*func)(struct ws_win *, union arg *);
1856         union arg               args;
1857 } buttons[] = {
1858           /* action             key             mouse button    func            args */
1859         { client_click,         MODKEY,         Button3,        resize,         {.id = SWM_ARG_ID_DONTCENTER} },
1860         { client_click,         MODKEY | ShiftMask, Button3,    resize,         {.id = SWM_ARG_ID_CENTER} },
1861         { client_click,         MODKEY,         Button1,        move,           {0} },
1862 };
1863
1864 void
1865 updatenumlockmask(void)
1866 {
1867         unsigned int            i, j;
1868         XModifierKeymap         *modmap;
1869
1870         DNPRINTF(SWM_D_MISC, "updatenumlockmask\n");
1871         numlockmask = 0;
1872         modmap = XGetModifierMapping(display);
1873         for (i = 0; i < 8; i++)
1874                 for (j = 0; j < modmap->max_keypermod; j++)
1875                         if (modmap->modifiermap[i * modmap->max_keypermod + j]
1876                           == XKeysymToKeycode(display, XK_Num_Lock))
1877                                 numlockmask = (1 << i);
1878
1879         XFreeModifiermap(modmap);
1880 }
1881
1882 void
1883 grabkeys(void)
1884 {
1885         unsigned int            i, j, k;
1886         KeyCode                 code;
1887         unsigned int            modifiers[] =
1888             { 0, LockMask, numlockmask, numlockmask | LockMask };
1889
1890         DNPRINTF(SWM_D_MISC, "grabkeys\n");
1891         updatenumlockmask();
1892
1893         for (k = 0; k < ScreenCount(display); k++) {
1894                 if (TAILQ_EMPTY(&screens[k].rl))
1895                         continue;
1896                 XUngrabKey(display, AnyKey, AnyModifier, screens[k].root);
1897                 for (i = 0; i < LENGTH(keys); i++) {
1898                         if ((code = XKeysymToKeycode(display, keys[i].keysym)))
1899                                 for (j = 0; j < LENGTH(modifiers); j++)
1900                                         XGrabKey(display, code,
1901                                             keys[i].mod | modifiers[j],
1902                                             screens[k].root, True,
1903                                             GrabModeAsync, GrabModeAsync);
1904                 }
1905         }
1906 }
1907
1908 void
1909 grabbuttons(struct ws_win *win, int focused)
1910 {
1911         unsigned int            i, j;
1912         unsigned int            modifiers[] =
1913             { 0, LockMask, numlockmask, numlockmask|LockMask };
1914
1915         updatenumlockmask();
1916         XUngrabButton(display, AnyButton, AnyModifier, win->id);
1917         if(focused) {
1918                 for (i = 0; i < LENGTH(buttons); i++)
1919                         if (buttons[i].action == client_click)
1920                                 for (j = 0; j < LENGTH(modifiers); j++)
1921                                         XGrabButton(display, buttons[i].button,
1922                                             buttons[i].mask | modifiers[j],
1923                                             win->id, False, BUTTONMASK,
1924                                             GrabModeAsync, GrabModeSync, None,
1925                                             None);
1926         } else
1927                 XGrabButton(display, AnyButton, AnyModifier, win->id, False,
1928                     BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
1929 }
1930
1931 void
1932 expose(XEvent *e)
1933 {
1934         DNPRINTF(SWM_D_EVENT, "expose: window: %lu\n", e->xexpose.window);
1935 }
1936
1937 void
1938 keypress(XEvent *e)
1939 {
1940         unsigned int            i;
1941         KeySym                  keysym;
1942         XKeyEvent               *ev = &e->xkey;
1943
1944         DNPRINTF(SWM_D_EVENT, "keypress: window: %lu\n", ev->window);
1945
1946         keysym = XKeycodeToKeysym(display, (KeyCode)ev->keycode, 0);
1947         for (i = 0; i < LENGTH(keys); i++)
1948                 if (keysym == keys[i].keysym
1949                    && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
1950                    && keys[i].func)
1951                         keys[i].func(root_to_region(ev->root),
1952                             &(keys[i].args));
1953 }
1954
1955 void
1956 buttonpress(XEvent *e)
1957 {
1958         XButtonPressedEvent     *ev = &e->xbutton;
1959
1960         struct ws_win           *win;
1961         int                     i, action;
1962
1963         DNPRINTF(SWM_D_EVENT, "buttonpress: window: %lu\n", ev->window);
1964
1965         action = root_click;
1966         if ((win = find_window(ev->window)) == NULL)
1967                 return;
1968         else {
1969                 focus_win(win);
1970                 action = client_click;
1971         }
1972
1973         for (i = 0; i < LENGTH(buttons); i++)
1974                 if (action == buttons[i].action && buttons[i].func &&
1975                     buttons[i].button == ev->button &&
1976                     CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
1977                         buttons[i].func(win, &buttons[i].args);
1978 }
1979
1980 void
1981 set_win_state(struct ws_win *win, long state)
1982 {
1983         long                    data[] = {state, None};
1984
1985         DNPRINTF(SWM_D_EVENT, "set_win_state: window: %lu\n", win->id);
1986
1987         XChangeProperty(display, win->id, astate, astate, 32, PropModeReplace,
1988             (unsigned char *)data, 2);
1989 }
1990
1991 struct ws_win *
1992 manage_window(Window id)
1993 {
1994         Window                  trans;
1995         struct workspace        *ws;
1996         struct ws_win           *win;
1997         int                     format, i, ws_idx;
1998         unsigned long           nitems, bytes;
1999         Atom                    ws_idx_atom = 0, type;
2000         unsigned char           ws_idx_str[SWM_PROPLEN], *prop = NULL;
2001         struct swm_region       *r;
2002         long                    mask;
2003         const char              *errstr;
2004
2005         if ((win = find_window(id)) != NULL)
2006                         return (win);   /* already being managed */
2007
2008         if ((win = calloc(1, sizeof(struct ws_win))) == NULL)
2009                 errx(1, "calloc: failed to allocate memory for new window");
2010
2011         /* Get all the window data in one shot */
2012         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
2013         if (ws_idx_atom)
2014                 XGetWindowProperty(display, id, ws_idx_atom, 0, SWM_PROPLEN,
2015                     False, XA_STRING, &type, &format, &nitems, &bytes, &prop);
2016         XGetWindowAttributes(display, id, &win->wa);
2017         XGetTransientForHint(display, id, &trans);
2018         XGetWMNormalHints(display, id, &win->sh, &mask); /* XXX function? */
2019         if (trans) {
2020                 win->transient = trans;
2021                 DNPRINTF(SWM_D_MISC, "manage_window: win %u transient %u\n",
2022                     (unsigned)win->id, win->transient);
2023         }
2024
2025         /*
2026          * Figure out where to put the window. If it was previously assigned to
2027          * a workspace (either by spawn() or manually moving), and isn't
2028          * transient, * put it in the same workspace
2029          */
2030         r = root_to_region(win->wa.root);
2031         if (prop && win->transient == 0) {
2032                 DNPRINTF(SWM_D_PROP, "got property _SWM_WS=%s\n", prop);
2033                 ws_idx = strtonum(prop, 0, 9, &errstr);
2034                 if (errstr) {
2035                         DNPRINTF(SWM_D_EVENT, "window idx is %s: %s",
2036                             errstr, prop);
2037                 }
2038                 ws = &r->s->ws[ws_idx];
2039         } else
2040                 ws = r->ws;
2041
2042         /* set up the window layout */
2043         win->id = id;
2044         win->ws = ws;
2045         win->s = r->s;  /* this never changes */
2046         TAILQ_INSERT_TAIL(&ws->winlist, win, entry);
2047
2048         win->g.w = win->wa.width;
2049         win->g.h = win->wa.height;
2050         win->g.x = win->wa.x;
2051         win->g.y = win->wa.y;
2052
2053         /* Set window properties so we can remember this after reincarnation */
2054         if (ws_idx_atom && prop == NULL &&
2055             snprintf(ws_idx_str, SWM_PROPLEN, "%d", ws->idx) < SWM_PROPLEN) {
2056                 DNPRINTF(SWM_D_PROP, "setting property _SWM_WS to %s\n",
2057                     ws_idx_str);
2058                 XChangeProperty(display, win->id, ws_idx_atom, XA_STRING, 8,
2059                     PropModeReplace, ws_idx_str, SWM_PROPLEN);
2060         }
2061         XFree(prop);
2062
2063         /*
2064         fprintf(stderr, "manage window: %d x %d y %d w %d h %d\n", win->id, win->g.x, win->g.y, win->g.w, win->g.h);
2065         */
2066
2067         if (XGetClassHint(display, win->id, &win->ch)) {
2068                 DNPRINTF(SWM_D_CLASS, "class: %s name: %s\n",
2069                     win->ch.res_class, win->ch.res_name);
2070                 for (i = 0; quirks[i].class != NULL && quirks[i].name != NULL &&
2071                     quirks[i].quirk != 0; i++){
2072                         if (!strcmp(win->ch.res_class, quirks[i].class) &&
2073                             !strcmp(win->ch.res_name, quirks[i].name)) {
2074                                 DNPRINTF(SWM_D_CLASS, "found: %s name: %s\n",
2075                                     win->ch.res_class, win->ch.res_name);
2076                                 if (quirks[i].quirk & SWM_Q_FLOAT)
2077                                         win->floating = 1;
2078                         }
2079                 }
2080         }
2081
2082         XSelectInput(display, id, EnterWindowMask | FocusChangeMask |
2083             PropertyChangeMask | StructureNotifyMask);
2084
2085         set_win_state(win, NormalState);
2086
2087         /* make new win focused */
2088         focus_win(win);
2089
2090         return (win);
2091 }
2092
2093 void
2094 configurerequest(XEvent *e)
2095 {
2096         XConfigureRequestEvent  *ev = &e->xconfigurerequest;
2097         struct ws_win           *win;
2098         int                     new = 0;
2099         XWindowChanges          wc;
2100
2101         if ((win = find_window(ev->window)) == NULL)
2102                 new = 1;
2103
2104         if (new) {
2105                 DNPRINTF(SWM_D_EVENT, "configurerequest: new window: %lu\n",
2106                     ev->window);
2107                 /*
2108                 fprintf(stderr, "configurerequest: new window: %lu x %d y %d w %d h %d bw %d s %d sm %d\n",
2109                     ev->window, ev->x, ev->y, ev->width, ev->height, ev->border_width, ev->above, ev->detail);
2110                 */
2111                 bzero(&wc, sizeof wc);
2112                 wc.x = ev->x;
2113                 wc.y = ev->y;
2114                 wc.width = ev->width;
2115                 wc.height = ev->height;
2116                 wc.border_width = ev->border_width;
2117                 wc.sibling = ev->above;
2118                 wc.stack_mode = ev->detail;
2119                 XConfigureWindow(display, ev->window, ev->value_mask, &wc);
2120         } else {
2121                 /*
2122                 fprintf(stderr, "configurerequest: change window: %lu\n",
2123                     ev->window);
2124                 */
2125                 DNPRINTF(SWM_D_EVENT, "configurerequest: change window: %lu\n",
2126                     ev->window);
2127                 if (win->floating) {
2128                         if (ev->value_mask & CWX)
2129                                 win->g.x = ev->x;
2130                         if (ev->value_mask & CWY)
2131                                 win->g.y = ev->y;
2132                         if (ev->value_mask & CWWidth)
2133                                 win->g.w = ev->width;
2134                         if (ev->value_mask & CWHeight)
2135                                 win->g.h = ev->height;
2136                         if (win->ws->r != NULL) {
2137                                 /* this seems to be full screen */
2138                                 if (win->g.w >= WIDTH(win->ws->r)) {
2139                                         win->g.x = -1;
2140                                         win->g.w = WIDTH(win->ws->r);
2141                                         ev->value_mask |= CWX | CWWidth;
2142                                 }
2143                                 if (win->g.h >= HEIGHT(win->ws->r)) {
2144                                         /* kill border */
2145                                         win->g.y = -1;
2146                                         win->g.h = HEIGHT(win->ws->r);
2147                                         ev->value_mask |= CWY | CWHeight;
2148                                 }
2149                         }
2150                         if ((ev->value_mask & (CWX|CWY)) &&
2151                             !(ev->value_mask & (CWWidth|CWHeight)))
2152                                 config_win(win);
2153                         XMoveResizeWindow(display, win->id,
2154                             win->g.x, win->g.y, win->g.w, win->g.h);
2155                 } else
2156                         config_win(win);
2157         }
2158 }
2159
2160 void
2161 configurenotify(XEvent *e)
2162 {
2163         DNPRINTF(SWM_D_EVENT, "configurenotify: window: %lu\n",
2164             e->xconfigure.window);
2165 }
2166
2167 void
2168 destroynotify(XEvent *e)
2169 {
2170         struct ws_win           *win;
2171         XDestroyWindowEvent     *ev = &e->xdestroywindow;
2172         struct workspace        *ws;
2173
2174         DNPRINTF(SWM_D_EVENT, "destroynotify: window %lu\n", ev->window);
2175
2176         if ((win = find_window(ev->window)) != NULL) {
2177                 ws = win->ws;
2178                 /* find a window to focus */
2179                 if (ws->focus == win)
2180                         ws->focus = TAILQ_PREV(win, ws_win_list, entry);
2181                 if (ws->focus == NULL)
2182                         ws->focus = TAILQ_FIRST(&ws->winlist);
2183                 if (ws->focus == NULL || ws->focus == win) {
2184                         ws->focus = NULL;
2185                         unfocus_all();
2186                 } else
2187                         focus_win(ws->focus);
2188                 TAILQ_REMOVE(&ws->winlist, win, entry);
2189                 set_win_state(win, WithdrawnState);
2190                 if (win->ch.res_class)
2191                         XFree(win->ch.res_class);
2192                 if (win->ch.res_name)
2193                         XFree(win->ch.res_name);
2194                 free(win);
2195                 stack();
2196         }
2197 }
2198
2199 void
2200 enternotify(XEvent *e)
2201 {
2202         XCrossingEvent          *ev = &e->xcrossing;
2203         struct ws_win           *win;
2204
2205         DNPRINTF(SWM_D_EVENT, "enternotify: window: %lu\n", ev->window);
2206
2207         if (ignore_enter) {
2208                 /* eat event(r) to prevent autofocus */
2209                 ignore_enter--;
2210                 return;
2211         }
2212
2213         if ((win = find_window(ev->window)) != NULL)
2214                 focus_win(win);
2215 }
2216
2217 void
2218 focusin(XEvent *e)
2219 {
2220         DNPRINTF(SWM_D_EVENT, "focusin: window: %lu\n", e->xfocus.window);
2221 }
2222
2223 void
2224 mappingnotify(XEvent *e)
2225 {
2226         XMappingEvent           *ev = &e->xmapping;
2227
2228         DNPRINTF(SWM_D_EVENT, "mappingnotify: window: %lu\n", ev->window);
2229
2230         XRefreshKeyboardMapping(ev);
2231         if (ev->request == MappingKeyboard)
2232                 grabkeys();
2233 }
2234
2235 void
2236 maprequest(XEvent *e)
2237 {
2238         XMapRequestEvent        *ev = &e->xmaprequest;
2239         XWindowAttributes       wa;
2240
2241         DNPRINTF(SWM_D_EVENT, "maprequest: window: %lu\n",
2242             e->xmaprequest.window);
2243
2244         if (!XGetWindowAttributes(display, ev->window, &wa))
2245                 return;
2246         if (wa.override_redirect)
2247                 return;
2248         manage_window(e->xmaprequest.window);
2249         stack();
2250 }
2251
2252 void
2253 propertynotify(XEvent *e)
2254 {
2255         struct ws_win           *win;
2256         XPropertyEvent          *ev = &e->xproperty;
2257
2258         DNPRINTF(SWM_D_EVENT, "propertynotify: window: %lu\n",
2259             ev->window);
2260
2261         if (ev->state == PropertyDelete)
2262                 return; /* ignore */
2263         win = find_window(ev->window);
2264         if (win == NULL)
2265                 return;
2266
2267         switch (ev->atom) {
2268         case XA_WM_NORMAL_HINTS:
2269 #if 0
2270                 long            mask;
2271                 XGetWMNormalHints(display, win->id, &win->sh, &mask);
2272                 fprintf(stderr, "normal hints: flag 0x%x\n", win->sh.flags);
2273                 if (win->sh.flags & PMinSize) {
2274                         win->g.w = win->sh.min_width;
2275                         win->g.h = win->sh.min_height;
2276                         fprintf(stderr, "min %d %d\n", win->g.w, win->g.h);
2277                 }
2278                 XMoveResizeWindow(display, win->id,
2279                     win->g.x, win->g.y, win->g.w, win->g.h);
2280 #endif
2281                 break;
2282         default:
2283                 break;
2284         }
2285 }
2286
2287 void
2288 unmapnotify(XEvent *e)
2289 {
2290         DNPRINTF(SWM_D_EVENT, "unmapnotify: window: %lu\n", e->xunmap.window);
2291 }
2292
2293 void
2294 visibilitynotify(XEvent *e)
2295 {
2296         int                     i;
2297         struct swm_region       *r;
2298
2299         DNPRINTF(SWM_D_EVENT, "visibilitynotify: window: %lu\n",
2300             e->xvisibility.window);
2301         if (e->xvisibility.state == VisibilityUnobscured)
2302                 for (i = 0; i < ScreenCount(display); i++)
2303                         TAILQ_FOREACH(r, &screens[i].rl, entry)
2304                                 if (e->xvisibility.window == r->bar_window)
2305                                         bar_update();
2306 }
2307
2308 int
2309 xerror_start(Display *d, XErrorEvent *ee)
2310 {
2311         other_wm = 1;
2312         return (-1);
2313 }
2314
2315 int
2316 xerror(Display *d, XErrorEvent *ee)
2317 {
2318         /* fprintf(stderr, "error: %p %p\n", display, ee); */
2319         return (-1);
2320 }
2321
2322 int
2323 active_wm(void)
2324 {
2325         other_wm = 0;
2326         xerrorxlib = XSetErrorHandler(xerror_start);
2327
2328         /* this causes an error if some other window manager is running */
2329         XSelectInput(display, DefaultRootWindow(display),
2330             SubstructureRedirectMask);
2331         XSync(display, False);
2332         if (other_wm)
2333                 return (1);
2334
2335         XSetErrorHandler(xerror);
2336         XSync(display, False);
2337         return (0);
2338 }
2339
2340 long
2341 getstate(Window w)
2342 {
2343         int                     format, status;
2344         long                    result = -1;
2345         unsigned char           *p = NULL;
2346         unsigned long           n, extra;
2347         Atom                    real;
2348
2349         astate = XInternAtom(display, "WM_STATE", False);
2350         status = XGetWindowProperty(display, w, astate, 0L, 2L, False, astate,
2351             &real, &format, &n, &extra, (unsigned char **)&p);
2352         if (status != Success)
2353                 return (-1);
2354         if (n != 0)
2355                 result = *p;
2356         XFree(p);
2357         return (result);
2358 }
2359
2360 void
2361 new_region(struct swm_screen *s, struct workspace *ws,
2362     int x, int y, int w, int h)
2363 {
2364         struct swm_region       *r;
2365
2366         DNPRINTF(SWM_D_MISC, "new region on screen %d: %dx%d (%d, %d)\n",
2367              s->idx, x, y, w, h);
2368
2369         if ((r = calloc(1, sizeof(struct swm_region))) == NULL)
2370                 errx(1, "calloc: failed to allocate memory for screen");
2371
2372         X(r) = x;
2373         Y(r) = y;
2374         WIDTH(r) = w;
2375         HEIGHT(r) = h;
2376         r->s = s;
2377         r->ws = ws;
2378         ws->r = r;
2379         TAILQ_INSERT_TAIL(&s->rl, r, entry);
2380         bar_setup(r);
2381 }
2382
2383 void
2384 setup_screens(void)
2385 {
2386 #ifdef SWM_XRR_HAS_CRTC
2387         XRRCrtcInfo             *ci;
2388         XRRScreenResources      *sr;
2389         int                     c;
2390 #endif /* SWM_XRR_HAS_CRTC */
2391         Window                  d1, d2, *wins = NULL;
2392         XWindowAttributes       wa;
2393         struct swm_region       *r;
2394         unsigned int            no;
2395         int                     errorbase, major, minor;
2396         int                     ncrtc = 0, w = 0;
2397         int                     i, j, k;
2398         struct workspace        *ws;
2399         int                     ws_idx_atom;
2400
2401
2402         if ((screens = calloc(ScreenCount(display),
2403              sizeof(struct swm_screen))) == NULL)
2404                 errx(1, "calloc: screens");
2405
2406         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
2407
2408
2409         /* map physical screens */
2410         for (i = 0; i < ScreenCount(display); i++) {
2411                 DNPRINTF(SWM_D_WS, "setup_screens: init screen %d\n", i);
2412                 screens[i].idx = i;
2413                 TAILQ_INIT(&screens[i].rl);
2414                 screens[i].root = RootWindow(display, i);
2415
2416                 /* set default colors */
2417                 setscreencolor("red", i + 1, SWM_S_COLOR_FOCUS);
2418                 setscreencolor("rgb:88/88/88", i + 1, SWM_S_COLOR_UNFOCUS);
2419                 setscreencolor("rgb:00/80/80", i + 1, SWM_S_COLOR_BAR_BORDER);
2420                 setscreencolor("black", i + 1, SWM_S_COLOR_BAR);
2421                 setscreencolor("rgb:a0/a0/a0", i + 1, SWM_S_COLOR_BAR_FONT);
2422
2423                 /* init all workspaces */
2424                 for (j = 0; j < SWM_WS_MAX; j++) {
2425                         ws = &screens[i].ws[j];
2426                         ws->idx = j;
2427                         ws->restack = 1;
2428                         ws->focus = NULL;
2429                         ws->r = NULL;
2430                         TAILQ_INIT(&ws->winlist);
2431
2432                         for (k = 0; layouts[k].l_stack != NULL; k++)
2433                                 if (layouts[k].l_config != NULL)
2434                                         layouts[k].l_config(ws,
2435                                             SWM_ARG_ID_STACKINIT);
2436                         ws->cur_layout = &layouts[0];
2437                 }
2438
2439                 /* map virtual screens onto physical screens */
2440                 screens[i].xrandr_support = XRRQueryExtension(display,
2441                     &xrandr_eventbase, &errorbase);
2442                 if (screens[i].xrandr_support)
2443                         if (XRRQueryVersion(display, &major, &minor) &&
2444                             major < 1)
2445                                 screens[i].xrandr_support = 0;
2446
2447 #if 0   /* not ready for dynamic screen changes */
2448                 if (screens[i].xrandr_support)
2449                         XRRSelectInput(display,
2450                             screens[r->s].root,
2451                             RRScreenChangeNotifyMask);
2452 #endif
2453
2454                 /* grab existing windows (before we build the bars)*/
2455                 if (!XQueryTree(display, screens[i].root, &d1, &d2, &wins, &no))
2456                         continue;
2457
2458 #ifdef SWM_XRR_HAS_CRTC
2459                 sr = XRRGetScreenResources(display, screens[i].root);
2460                 if (sr == NULL)
2461                         new_region(&screens[i], &screens[i].ws[w],
2462                             0, 0, DisplayWidth(display, i),
2463                             DisplayHeight(display, i));
2464                 else
2465                         ncrtc = sr->ncrtc;
2466
2467                 for (c = 0, ci = NULL; c < ncrtc; c++) {
2468                         ci = XRRGetCrtcInfo(display, sr, sr->crtcs[c]);
2469                         if (ci->noutput == 0)
2470                                 continue;
2471
2472                         if (ci != NULL && ci->mode == None)
2473                                 new_region(&screens[i], &screens[i].ws[w], 0, 0,
2474                                     DisplayWidth(display, i),
2475                                     DisplayHeight(display, i));
2476                         else
2477                                 new_region(&screens[i], &screens[i].ws[w],
2478                                     ci->x, ci->y, ci->width, ci->height);
2479                         w++;
2480                 }
2481                 if (ci)
2482                         XRRFreeCrtcInfo(ci);
2483                 XRRFreeScreenResources(sr);
2484 #else
2485                 new_region(&screens[i], &screens[i].ws[w], 0, 0,
2486                     DisplayWidth(display, i),
2487                     DisplayHeight(display, i));
2488 #endif /* SWM_XRR_HAS_CRTC */
2489
2490                 /* attach windows to a region */
2491                 /* normal windows */
2492                 if ((r = TAILQ_FIRST(&screens[i].rl)) == NULL)
2493                         errx(1, "no regions on screen %d", i);
2494
2495                 for (i = 0; i < no; i++) {
2496                         XGetWindowAttributes(display, wins[i], &wa);
2497                         if (!XGetWindowAttributes(display, wins[i], &wa) ||
2498                             wa.override_redirect ||
2499                             XGetTransientForHint(display, wins[i], &d1))
2500                                 continue;
2501
2502                         if (wa.map_state == IsViewable ||
2503                             getstate(wins[i]) == NormalState)
2504                                 manage_window(wins[i]);
2505                 }
2506                 /* transient windows */
2507                 for (i = 0; i < no; i++) {
2508                         if (!XGetWindowAttributes(display, wins[i], &wa))
2509                                 continue;
2510
2511                         if (XGetTransientForHint(display, wins[i], &d1) &&
2512                             (wa.map_state == IsViewable || getstate(wins[i]) ==
2513                             NormalState))
2514                                 manage_window(wins[i]);
2515                 }
2516                 if (wins) {
2517                         XFree(wins);
2518                         wins = NULL;
2519                 }
2520         }
2521 }
2522
2523 int
2524 main(int argc, char *argv[])
2525 {
2526         struct passwd           *pwd;
2527         char                    conf[PATH_MAX], *cfile = NULL;
2528         struct stat             sb;
2529         XEvent                  e;
2530         int                     xfd;
2531         fd_set                  rd;
2532
2533         start_argv = argv;
2534         fprintf(stderr, "Welcome to scrotwm V%s cvs tag: %s\n",
2535             SWM_VERSION, cvstag);
2536         if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
2537                 warnx("no locale support");
2538
2539         if (!(display = XOpenDisplay(0)))
2540                 errx(1, "can not open display");
2541
2542         if (active_wm())
2543                 errx(1, "other wm running");
2544
2545         astate = XInternAtom(display, "WM_STATE", False);
2546
2547         /* look for local and global conf file */
2548         pwd = getpwuid(getuid());
2549         if (pwd == NULL)
2550                 errx(1, "invalid user %d", getuid());
2551
2552         setup_screens();
2553
2554         snprintf(conf, sizeof conf, "%s/.%s", pwd->pw_dir, SWM_CONF_FILE);
2555         if (stat(conf, &sb) != -1) {
2556                 if (S_ISREG(sb.st_mode))
2557                         cfile = conf;
2558         } else {
2559                 /* try global conf file */
2560                 snprintf(conf, sizeof conf, "/etc/%s", SWM_CONF_FILE);
2561                 if (!stat(conf, &sb))
2562                         if (S_ISREG(sb.st_mode))
2563                                 cfile = conf;
2564         }
2565         if (cfile)
2566                 conf_load(cfile);
2567         bar_refresh();
2568
2569         /* ws[0].focus = TAILQ_FIRST(&ws[0].winlist); */
2570
2571         grabkeys();
2572         stack();
2573
2574         xfd = ConnectionNumber(display);
2575         while (running) {
2576                 FD_ZERO(&rd);
2577                 FD_SET(xfd, &rd);
2578                 if (select(xfd + 1, &rd, NULL, NULL, NULL) == -1)
2579                         if (errno != EINTR)
2580                                 errx(1, "select failed");
2581                 if (bar_alarm) {
2582                         bar_alarm = 0;
2583                         bar_update();
2584                 }
2585                 while(XPending(display)) {
2586                         XNextEvent(display, &e);
2587                         if (handler[e.type])
2588                                 handler[e.type](&e);
2589                 }
2590         }
2591
2592         XCloseDisplay(display);
2593
2594         return (0);
2595 }