scrotwm.c

   1 /* $scrotwm$ */
   2 /*
   3  * Copyright (c) 2009 Marco Peereboom <marco@peereboom.us>
   4  * Copyright (c) 2009 Ryan McBride <mcbride@countersiege.com>
   5  * Copyright (c) 2009 Darrin Chandler <dwchandler@stilyagin.com>
   6  * Copyright (c) 2009 Pierre-Yves Ritschard <pyr@spootnik.org>
   7  *
   8  * Permission to use, copy, modify, and distribute this software for any
   9  * purpose with or without fee is hereby granted, provided that the above
  10  * copyright notice and this permission notice appear in all copies.
  11  *
  12  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  13  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  14  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  15  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  16  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  17  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  18  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  19  */
  20 /*
  21  * Much code and ideas taken from dwm under the following license:
  22  * MIT/X Consortium License
  23  *
  24  * 2006-2008 Anselm R Garbe <garbeam at gmail dot com>
  25  * 2006-2007 Sander van Dijk <a dot h dot vandijk at gmail dot com>
  26  * 2006-2007 Jukka Salmi <jukka at salmi dot ch>
  27  * 2007 Premysl Hruby <dfenze at gmail dot com>
  28  * 2007 Szabolcs Nagy <nszabolcs at gmail dot com>
  29  * 2007 Christof Musik <christof at sendfax dot de>
  30  * 2007-2008 Enno Gottox Boland <gottox at s01 dot de>
  31  * 2007-2008 Peter Hartlich <sgkkr at hartlich dot com>
  32  * 2008 Martin Hurton <martin dot hurton at gmail dot com>
  33  *
  34  * Permission is hereby granted, free of charge, to any person obtaining a
  35  * copy of this software and associated documentation files (the "Software"),
  36  * to deal in the Software without restriction, including without limitation
  37  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  38  * and/or sell copies of the Software, and to permit persons to whom the
  39  * Software is furnished to do so, subject to the following conditions:
  40  *
  41  * The above copyright notice and this permission notice shall be included in
  42  * all copies or substantial portions of the Software.
  43  *
  44  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  45  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  46  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  47  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  48  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  49  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  50  * DEALINGS IN THE SOFTWARE.
  51  */
  52
  53 static const char       *cvstag = "$scrotwm$";
  54
  55 #define SWM_VERSION     "0.9.7"
  56
  57 #include <stdio.h>
  58 #include <stdlib.h>
  59 #include <err.h>
  60 #include <errno.h>
  61 #include <fcntl.h>
  62 #include <locale.h>
  63 #include <unistd.h>
  64 #include <time.h>
  65 #include <signal.h>
  66 #include <string.h>
  67 #include <util.h>
  68 #include <pwd.h>
  69 #include <ctype.h>
  70
  71 #include <sys/types.h>
  72 #include <sys/time.h>
  73 #include <sys/stat.h>
  74 #include <sys/wait.h>
  75 #include <sys/queue.h>
  76 #include <sys/param.h>
  77 #include <sys/select.h>
  78
  79 #include <X11/cursorfont.h>
  80 #include <X11/keysym.h>
  81 #include <X11/Xatom.h>
  82 #include <X11/Xlib.h>
  83 #include <X11/Xproto.h>
  84 #include <X11/Xutil.h>
  85 #include <X11/extensions/Xrandr.h>
  86
  87 #if RANDR_MAJOR < 1
  88 #  error XRandR versions less than 1.0 are not supported
  89 #endif
  90
  91 #if RANDR_MAJOR >= 1
  92 #if RANDR_MINOR >= 2
  93 #define SWM_XRR_HAS_CRTC
  94 #endif
  95 #endif
  96
  97 /* #define SWM_DEBUG */
  98 #ifdef SWM_DEBUG
  99 #define DPRINTF(x...)           do { if (swm_debug) fprintf(stderr, x); } while(0)
 100 #define DNPRINTF(n,x...)        do { if (swm_debug & n) fprintf(stderr, x); } while(0)
 101 #define SWM_D_MISC              0x0001
 102 #define SWM_D_EVENT             0x0002
 103 #define SWM_D_WS                0x0004
 104 #define SWM_D_FOCUS             0x0008
 105 #define SWM_D_MOVE              0x0010
 106 #define SWM_D_STACK             0x0020
 107 #define SWM_D_MOUSE             0x0040
 108 #define SWM_D_PROP              0x0080
 109 #define SWM_D_CLASS             0x0100
 110 #define SWM_D_KEY               0x0200
 111 #define SWM_D_QUIRK             0x0400
 112 #define SWM_D_SPAWN             0x0800
 113
 114 u_int32_t               swm_debug = 0
 115                             | SWM_D_MISC
 116                             | SWM_D_EVENT
 117                             | SWM_D_WS
 118                             | SWM_D_FOCUS
 119                             | SWM_D_MOVE
 120                             | SWM_D_STACK
 121                             | SWM_D_MOUSE
 122                             | SWM_D_PROP
 123                             | SWM_D_CLASS
 124                             | SWM_D_KEY
 125                             | SWM_D_QUIRK
 126                             | SWM_D_SPAWN
 127                             ;
 128 #else
 129 #define DPRINTF(x...)
 130 #define DNPRINTF(n,x...)
 131 #endif
 132
 133 #define LENGTH(x)               (sizeof x / sizeof x[0])
 134 #define MODKEY                  Mod1Mask
 135 #define CLEANMASK(mask)         (mask & ~(numlockmask | LockMask))
 136 #define BUTTONMASK              (ButtonPressMask|ButtonReleaseMask)
 137 #define MOUSEMASK               (BUTTONMASK|PointerMotionMask)
 138 #define SWM_PROPLEN             (16)
 139 #define SWM_FUNCNAME_LEN        (32)
 140 #define SWM_KEYS_LEN            (255)
 141 #define SWM_QUIRK_LEN           (64)
 142 #define X(r)                    (r)->g.x
 143 #define Y(r)                    (r)->g.y
 144 #define WIDTH(r)                (r)->g.w
 145 #define HEIGHT(r)               (r)->g.h
 146 #define SWM_MAX_FONT_STEPS      (3)
 147
 148 #ifndef SWM_LIB
 149 #define SWM_LIB                 "/usr/local/lib/libswmhack.so.0.0"
 150 #endif
 151
 152 char                    **start_argv;
 153 Atom                    astate;
 154 Atom                    aprot;
 155 Atom                    adelete;
 156 int                     (*xerrorxlib)(Display *, XErrorEvent *);
 157 int                     other_wm;
 158 int                     running = 1;
 159 int                     ss_enabled = 0;
 160 int                     xrandr_support;
 161 int                     xrandr_eventbase;
 162 int                     ignore_enter = 0;
 163 unsigned int            numlockmask = 0;
 164 Display                 *display;
 165
 166 int                     cycle_empty = 0;
 167 int                     cycle_visible = 0;
 168 int                     term_width = 0;
 169 int                     font_adjusted = 0;
 170 unsigned int            mod_key = MODKEY;
 171
 172 /* dialog windows */
 173 double                  dialog_ratio = .6;
 174 /* status bar */
 175 #define SWM_BAR_MAX     (256)
 176 char                    *bar_argv[] = { NULL, NULL };
 177 int                     bar_pipe[2];
 178 char                    bar_ext[SWM_BAR_MAX];
 179 char                    bar_vertext[SWM_BAR_MAX];
 180 int                     bar_version = 0;
 181 sig_atomic_t            bar_alarm = 0;
 182 int                     bar_delay = 30;
 183 int                     bar_enabled = 1;
 184 int                     bar_extra = 1;
 185 int                     bar_extra_running = 0;
 186 int                     bar_verbose = 1;
 187 int                     bar_height = 0;
 188 int                     clock_enabled = 1;
 189 int                     title_name_enabled = 0;
 190 int                     title_class_enabled = 0;
 191 pid_t                   bar_pid;
 192 GC                      bar_gc;
 193 XGCValues               bar_gcv;
 194 int                     bar_fidx = 0;
 195 XFontStruct             *bar_fs;
 196 char                    *bar_fonts[] = { NULL, NULL, NULL };    /* XXX Make fully dynamic */
 197 char                    *spawn_term[] = { NULL, NULL };         /* XXX Make fully dynamic */
 198
 199 #define SWM_MENU_FN     (2)
 200 #define SWM_MENU_NB     (4)
 201 #define SWM_MENU_NF     (6)
 202 #define SWM_MENU_SB     (8)
 203 #define SWM_MENU_SF     (10)
 204
 205 /* layout manager data */
 206 struct swm_geometry {
 207         int                     x;
 208         int                     y;
 209         int                     w;
 210         int                     h;
 211 };
 212
 213 struct swm_screen;
 214 struct workspace;
 215
 216 /* virtual "screens" */
 217 struct swm_region {
 218         TAILQ_ENTRY(swm_region) entry;
 219         struct swm_geometry     g;
 220         struct workspace        *ws;    /* current workspace on this region */
 221         struct swm_screen       *s;     /* screen idx */
 222         Window                  bar_window;
 223 };
 224 TAILQ_HEAD(swm_region_list, swm_region);
 225
 226 struct ws_win {
 227         TAILQ_ENTRY(ws_win)     entry;
 228         Window                  id;
 229         struct swm_geometry     g;
 230         int                     got_focus;
 231         int                     floating;
 232         int                     transient;
 233         int                     manual;
 234         int                     font_size_boundary[SWM_MAX_FONT_STEPS];
 235         int                     font_steps;
 236         int                     last_inc;
 237         int                     can_delete;
 238         unsigned long           quirks;
 239         struct workspace        *ws;    /* always valid */
 240         struct swm_screen       *s;     /* always valid, never changes */
 241         XWindowAttributes       wa;
 242         XSizeHints              sh;
 243         XClassHint              ch;
 244 };
 245 TAILQ_HEAD(ws_win_list, ws_win);
 246
 247 /* user/key callable function IDs */
 248 enum keyfuncid {
 249         kf_cycle_layout,
 250         kf_stack_reset,
 251         kf_master_shrink,
 252         kf_master_grow,
 253         kf_master_add,
 254         kf_master_del,
 255         kf_stack_inc,
 256         kf_stack_dec,
 257         kf_swap_main,
 258         kf_focus_next,
 259         kf_focus_prev,
 260         kf_swap_next,
 261         kf_swap_prev,
 262         kf_spawn_term,
 263         kf_spawn_menu,
 264         kf_quit,
 265         kf_restart,
 266         kf_focus_main,
 267         kf_ws_1,
 268         kf_ws_2,
 269         kf_ws_3,
 270         kf_ws_4,
 271         kf_ws_5,
 272         kf_ws_6,
 273         kf_ws_7,
 274         kf_ws_8,
 275         kf_ws_9,
 276         kf_ws_10,
 277         kf_ws_next,
 278         kf_ws_prev,
 279         kf_screen_next,
 280         kf_screen_prev,
 281         kf_mvws_1,
 282         kf_mvws_2,
 283         kf_mvws_3,
 284         kf_mvws_4,
 285         kf_mvws_5,
 286         kf_mvws_6,
 287         kf_mvws_7,
 288         kf_mvws_8,
 289         kf_mvws_9,
 290         kf_mvws_10,
 291         kf_bar_toggle,
 292         kf_wind_kill,
 293         kf_wind_del,
 294         kf_screenshot_all,
 295         kf_screenshot_wind,
 296         kf_float_toggle,
 297         kf_version,
 298         kf_spawn_lock,
 299         kf_spawn_initscr,
 300         kf_spawn_custom,
 301         kf_invalid
 302 };
 303
 304 /* layout handlers */
 305 void    stack(void);
 306 void    vertical_config(struct workspace *, int);
 307 void    vertical_stack(struct workspace *, struct swm_geometry *);
 308 void    horizontal_config(struct workspace *, int);
 309 void    horizontal_stack(struct workspace *, struct swm_geometry *);
 310 void    max_stack(struct workspace *, struct swm_geometry *);
 311
 312 void    grabbuttons(struct ws_win *, int);
 313 void    new_region(struct swm_screen *, int, int, int, int);
 314
 315 struct layout {
 316         void            (*l_stack)(struct workspace *, struct swm_geometry *);
 317         void            (*l_config)(struct workspace *, int);
 318 } layouts[] =  {
 319         /* stack,               configure */
 320         { vertical_stack,       vertical_config},
 321         { horizontal_stack,     horizontal_config},
 322         { max_stack,            NULL},
 323         { NULL,                 NULL},
 324 };
 325
 326 #define SWM_H_SLICE             (32)
 327 #define SWM_V_SLICE             (32)
 328
 329 /* define work spaces */
 330 struct workspace {
 331         int                     idx;            /* workspace index */
 332         int                     restack;        /* restack on switch */
 333         struct layout           *cur_layout;    /* current layout handlers */
 334         struct ws_win           *focus;         /* may be NULL */
 335         struct ws_win           *focus_prev;    /* may be NULL */
 336         struct swm_region       *r;             /* may be NULL */
 337         struct ws_win_list      winlist;        /* list of windows in ws */
 338
 339         /* stacker state */
 340         struct {
 341                                 int horizontal_msize;
 342                                 int horizontal_mwin;
 343                                 int horizontal_stacks;
 344                                 int vertical_msize;
 345                                 int vertical_mwin;
 346                                 int vertical_stacks;
 347         } l_state;
 348 };
 349
 350 enum    { SWM_S_COLOR_BAR, SWM_S_COLOR_BAR_BORDER, SWM_S_COLOR_BAR_FONT,
 351           SWM_S_COLOR_FOCUS, SWM_S_COLOR_UNFOCUS, SWM_S_COLOR_MAX };
 352
 353 /* physical screen mapping */
 354 #define SWM_WS_MAX              (10)            /* XXX Too small? */
 355 struct swm_screen {
 356         int                     idx;            /* screen index */
 357         struct swm_region_list  rl;     /* list of regions on this screen */
 358         struct swm_region_list  orl;    /* list of old regions */
 359         Window                  root;
 360         struct workspace        ws[SWM_WS_MAX];
 361
 362         /* colors */
 363         struct {
 364                 unsigned long   color;
 365                 char            *name;
 366         } c[SWM_S_COLOR_MAX];
 367 };
 368 struct swm_screen       *screens;
 369 int                     num_screens;
 370
 371 struct ws_win           *cur_focus = NULL;
 372
 373 /* args to functions */
 374 union arg {
 375         int                     id;
 376 #define SWM_ARG_ID_FOCUSNEXT    (0)
 377 #define SWM_ARG_ID_FOCUSPREV    (1)
 378 #define SWM_ARG_ID_FOCUSMAIN    (2)
 379 #define SWM_ARG_ID_SWAPNEXT     (3)
 380 #define SWM_ARG_ID_SWAPPREV     (4)
 381 #define SWM_ARG_ID_SWAPMAIN     (5)
 382 #define SWM_ARG_ID_MASTERSHRINK (6)
 383 #define SWM_ARG_ID_MASTERGROW   (7)
 384 #define SWM_ARG_ID_MASTERADD    (8)
 385 #define SWM_ARG_ID_MASTERDEL    (9)
 386 #define SWM_ARG_ID_STACKRESET   (10)
 387 #define SWM_ARG_ID_STACKINIT    (11)
 388 #define SWM_ARG_ID_CYCLEWS_UP   (12)
 389 #define SWM_ARG_ID_CYCLEWS_DOWN (13)
 390 #define SWM_ARG_ID_CYCLESC_UP   (14)
 391 #define SWM_ARG_ID_CYCLESC_DOWN (15)
 392 #define SWM_ARG_ID_STACKINC     (16)
 393 #define SWM_ARG_ID_STACKDEC     (17)
 394 #define SWM_ARG_ID_SS_ALL       (0)
 395 #define SWM_ARG_ID_SS_WINDOW    (1)
 396 #define SWM_ARG_ID_DONTCENTER   (0)
 397 #define SWM_ARG_ID_CENTER       (1)
 398 #define SWM_ARG_ID_KILLWINDOW   (0)
 399 #define SWM_ARG_ID_DELETEWINDOW (1)
 400         char                    **argv;
 401 };
 402
 403 /* quirks */
 404 struct quirk {
 405         char                    *class;
 406         char                    *name;
 407         unsigned long           quirk;
 408 #define SWM_Q_FLOAT             (1<<0)  /* float this window */
 409 #define SWM_Q_TRANSSZ           (1<<1)  /* transiend window size too small */
 410 #define SWM_Q_ANYWHERE          (1<<2)  /* don't position this window */
 411 #define SWM_Q_XTERM_FONTADJ     (1<<3)  /* adjust xterm fonts when resizing */
 412 #define SWM_Q_FULLSCREEN        (1<<4)  /* remove border */
 413 };
 414 int                             quirks_size = 0, quirks_length = 0;
 415 struct quirk                    *quirks = NULL;
 416
 417 /* events */
 418 void                    expose(XEvent *);
 419 void                    keypress(XEvent *);
 420 void                    buttonpress(XEvent *);
 421 void                    configurerequest(XEvent *);
 422 void                    configurenotify(XEvent *);
 423 void                    destroynotify(XEvent *);
 424 void                    enternotify(XEvent *);
 425 void                    focusin(XEvent *);
 426 void                    focusout(XEvent *);
 427 void                    mappingnotify(XEvent *);
 428 void                    maprequest(XEvent *);
 429 void                    propertynotify(XEvent *);
 430 void                    unmapnotify(XEvent *);
 431 void                    visibilitynotify(XEvent *);
 432
 433 void                    (*handler[LASTEvent])(XEvent *) = {
 434                                 [Expose] = expose,
 435                                 [KeyPress] = keypress,
 436                                 [ButtonPress] = buttonpress,
 437                                 [ConfigureRequest] = configurerequest,
 438                                 [ConfigureNotify] = configurenotify,
 439                                 [DestroyNotify] = destroynotify,
 440                                 [EnterNotify] = enternotify,
 441                                 [FocusIn] = focusin,
 442                                 [FocusOut] = focusout,
 443                                 [MappingNotify] = mappingnotify,
 444                                 [MapRequest] = maprequest,
 445                                 [PropertyNotify] = propertynotify,
 446                                 [UnmapNotify] = unmapnotify,
 447                                 [VisibilityNotify] = visibilitynotify,
 448 };
 449
 450 unsigned long
 451 name_to_color(char *colorname)
 452 {
 453         Colormap                cmap;
 454         Status                  status;
 455         XColor                  screen_def, exact_def;
 456         unsigned long           result = 0;
 457         char                    cname[32] = "#";
 458
 459         cmap = DefaultColormap(display, screens[0].idx);
 460         status = XAllocNamedColor(display, cmap, colorname,
 461             &screen_def, &exact_def);
 462         if (!status) {
 463                 strlcat(cname, colorname + 2, sizeof cname - 1);
 464                 status = XAllocNamedColor(display, cmap, cname, &screen_def,
 465                     &exact_def);
 466         }
 467         if (status)
 468                 result = screen_def.pixel;
 469         else
 470                 fprintf(stderr, "color '%s' not found.\n", colorname);
 471
 472         return (result);
 473 }
 474
 475 void
 476 setscreencolor(char *val, int i, int c)
 477 {
 478         if (i > 0 && i <= ScreenCount(display)) {
 479                 screens[i - 1].c[c].color = name_to_color(val);
 480                 free(screens[i - 1].c[c].name);
 481                 if ((screens[i - 1].c[c].name = strdup(val)) == NULL)
 482                         errx(1, "strdup");
 483         } else if (i == -1) {
 484                 for (i = 0; i < ScreenCount(display); i++) {
 485                         screens[i].c[c].color = name_to_color(val);
 486                         free(screens[i].c[c].name);
 487                         if ((screens[i].c[c].name = strdup(val)) == NULL)
 488                                 errx(1, "strdup");
 489                 }
 490         } else
 491                 errx(1, "invalid screen index: %d out of bounds (maximum %d)\n",
 492                     i, ScreenCount(display));
 493 }
 494
 495 void
 496 custom_region(char *val)
 497 {
 498         unsigned int                    sidx, x, y, w, h;
 499
 500         if (sscanf(val, "screen[%u]:%ux%u+%u+%u", &sidx, &w, &h, &x, &y) != 5)
 501                 errx(1, "invalid custom region, "
 502                     "should be 'screen[<n>]:<n>x<n>+<n>+<n>\n");
 503         if (sidx < 1 || sidx > ScreenCount(display))
 504                 errx(1, "invalid screen index: %d out of bounds (maximum %d)\n",
 505                     sidx, ScreenCount(display));
 506         sidx--;
 507
 508         if (w < 1 || h < 1)
 509                 errx(1, "region %ux%u+%u+%u too small\n", w, h, x, y);
 510
 511         if (x  < 0 || x > DisplayWidth(display, sidx) ||
 512             y < 0 || y > DisplayHeight(display, sidx) ||
 513             w + x > DisplayWidth(display, sidx) ||
 514             h + y > DisplayHeight(display, sidx))
 515                 errx(1, "region %ux%u+%u+%u not within screen boundaries "
 516                     "(%ux%u)\n", w, h, x, y,
 517                     DisplayWidth(display, sidx), DisplayHeight(display, sidx));
 518
 519         new_region(&screens[sidx], x, y, w, h);
 520 }
 521
 522 void
 523 socket_setnonblock(int fd)
 524 {
 525         int                     flags;
 526
 527         if ((flags = fcntl(fd, F_GETFL, 0)) == -1)
 528                 err(1, "fcntl F_GETFL");
 529         flags |= O_NONBLOCK;
 530         if ((flags = fcntl(fd, F_SETFL, flags)) == -1)
 531                 err(1, "fcntl F_SETFL");
 532 }
 533
 534 void
 535 bar_print(struct swm_region *r, char *s)
 536 {
 537         XClearWindow(display, r->bar_window);
 538         XSetForeground(display, bar_gc, r->s->c[SWM_S_COLOR_BAR_FONT].color);
 539         XDrawString(display, r->bar_window, bar_gc, 4, bar_fs->ascent, s,
 540             strlen(s));
 541 }
 542
 543 void
 544 bar_extra_stop(void)
 545 {
 546         if (bar_pipe[0]) {
 547                 close(bar_pipe[0]);
 548                 bzero(bar_pipe, sizeof bar_pipe);
 549         }
 550         if (bar_pid) {
 551                 kill(bar_pid, SIGTERM);
 552                 bar_pid = 0;
 553         }
 554         strlcpy(bar_ext, "", sizeof bar_ext);
 555         bar_extra = 0;
 556 }
 557
 558 void
 559 bar_update(void)
 560 {
 561         time_t                  tmt;
 562         struct tm               tm;
 563         struct swm_region       *r;
 564         int                     i, x, do_class, do_name;
 565         size_t                  len;
 566         char                    s[SWM_BAR_MAX];
 567         char                    loc[SWM_BAR_MAX];
 568         char                    *b;
 569         XClassHint              *xch;
 570         Status                   status;
 571
 572         if (bar_enabled == 0)
 573                 return;
 574         if (bar_extra && bar_extra_running) {
 575                 /* ignore short reads; it'll correct itself */
 576                 while ((b = fgetln(stdin, &len)) != NULL)
 577                         if (b && b[len - 1] == '\n') {
 578                                 b[len - 1] = '\0';
 579                                 strlcpy(bar_ext, b, sizeof bar_ext);
 580                         }
 581                 if (b == NULL && errno != EAGAIN) {
 582                         fprintf(stderr, "bar_extra failed: errno: %d %s\n",
 583                             errno, strerror(errno));
 584                         bar_extra_stop();
 585                 }
 586         } else
 587                 strlcpy(bar_ext, "", sizeof bar_ext);
 588
 589         if (clock_enabled == 0)
 590                 strlcpy(s, "", sizeof s);
 591         else {
 592                 time(&tmt);
 593                 localtime_r(&tmt, &tm);
 594                 strftime(s, sizeof s, "%a %b %d %R %Z %Y    ", &tm);
 595         }
 596         xch = NULL;
 597         if ((title_name_enabled == 1 || title_class_enabled == 1) &&
 598             cur_focus != NULL) {
 599                 if ((xch = XAllocClassHint()) == NULL)
 600                         goto out;
 601                 status = XGetClassHint(display, cur_focus->id, xch);
 602                 if (status == BadWindow || status == BadAlloc)
 603                         goto out;
 604                 do_class = (title_class_enabled && xch->res_class != NULL);
 605                 do_name = (title_name_enabled && xch->res_name != NULL);
 606                 if (do_class)
 607                         strlcat(s, xch->res_class, sizeof s);
 608                 if (do_class && do_name)
 609                         strlcat(s, ":", sizeof s);
 610                 if (do_name)
 611                         strlcat(s, xch->res_name, sizeof s);
 612         }
 613 out:
 614         if (xch)
 615                 XFree(xch);
 616         for (i = 0; i < ScreenCount(display); i++) {
 617                 x = 1;
 618                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
 619                         snprintf(loc, sizeof loc, "%d:%d    %s %s    %s",
 620                             x++, r->ws->idx + 1, s, bar_ext, bar_vertext);
 621                         bar_print(r, loc);
 622                 }
 623         }
 624         XSync(display, False);
 625         alarm(bar_delay);
 626 }
 627
 628 void
 629 bar_signal(int sig)
 630 {
 631         bar_alarm = 1;
 632 }
 633
 634 void
 635 bar_toggle(struct swm_region *r, union arg *args)
 636 {
 637         struct swm_region       *tmpr;
 638         int                     i, j, sc = ScreenCount(display);
 639
 640         DNPRINTF(SWM_D_MISC, "bar_toggle\n");
 641
 642         if (bar_enabled)
 643                 for (i = 0; i < sc; i++)
 644                         TAILQ_FOREACH(tmpr, &screens[i].rl, entry)
 645                                 XUnmapWindow(display, tmpr->bar_window);
 646         else
 647                 for (i = 0; i < sc; i++)
 648                         TAILQ_FOREACH(tmpr, &screens[i].rl, entry)
 649                                 XMapRaised(display, tmpr->bar_window);
 650
 651         bar_enabled = !bar_enabled;
 652         for (i = 0; i < sc; i++)
 653                 for (j = 0; j < SWM_WS_MAX; j++)
 654                         screens[i].ws[j].restack = 1;
 655
 656         stack();
 657         /* must be after stack */
 658         bar_update();
 659 }
 660
 661 void
 662 bar_refresh(void)
 663 {
 664         XSetWindowAttributes    wa;
 665         struct swm_region       *r;
 666         int                     i;
 667
 668         /* do this here because the conf file is in memory */
 669         if (bar_extra && bar_extra_running == 0 && bar_argv[0]) {
 670                 /* launch external status app */
 671                 bar_extra_running = 1;
 672                 if (pipe(bar_pipe) == -1)
 673                         err(1, "pipe error");
 674                 socket_setnonblock(bar_pipe[0]);
 675                 socket_setnonblock(bar_pipe[1]); /* XXX hmmm, really? */
 676                 if (dup2(bar_pipe[0], 0) == -1)
 677                         errx(1, "dup2");
 678                 if (dup2(bar_pipe[1], 1) == -1)
 679                         errx(1, "dup2");
 680                 if (signal(SIGPIPE, SIG_IGN) == SIG_ERR)
 681                         err(1, "could not disable SIGPIPE");
 682                 switch (bar_pid = fork()) {
 683                 case -1:
 684                         err(1, "cannot fork");
 685                         break;
 686                 case 0: /* child */
 687                         close(bar_pipe[0]);
 688                         execvp(bar_argv[0], bar_argv);
 689                         err(1, "%s external app failed", bar_argv[0]);
 690                         break;
 691                 default: /* parent */
 692                         close(bar_pipe[1]);
 693                         break;
 694                 }
 695         }
 696
 697         bzero(&wa, sizeof wa);
 698         for (i = 0; i < ScreenCount(display); i++)
 699                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
 700                         wa.border_pixel =
 701                             screens[i].c[SWM_S_COLOR_BAR_BORDER].color;
 702                         wa.background_pixel =
 703                             screens[i].c[SWM_S_COLOR_BAR].color;
 704                         XChangeWindowAttributes(display, r->bar_window,
 705                             CWBackPixel | CWBorderPixel, &wa);
 706                 }
 707         bar_update();
 708 }
 709
 710 void
 711 bar_setup(struct swm_region *r)
 712 {
 713         int                     i;
 714
 715         for (i = 0; bar_fonts[i] != NULL; i++) {
 716                 bar_fs = XLoadQueryFont(display, bar_fonts[i]);
 717                 if (bar_fs) {
 718                         bar_fidx = i;
 719                         break;
 720                 }
 721         }
 722         if (bar_fonts[i] == NULL)
 723                         errx(1, "couldn't load font");
 724         bar_height = bar_fs->ascent + bar_fs->descent + 3;
 725
 726         r->bar_window = XCreateSimpleWindow(display,
 727             r->s->root, X(r), Y(r), WIDTH(r) - 2, bar_height - 2,
 728             1, r->s->c[SWM_S_COLOR_BAR_BORDER].color,
 729             r->s->c[SWM_S_COLOR_BAR].color);
 730         bar_gc = XCreateGC(display, r->bar_window, 0, &bar_gcv);
 731         XSetFont(display, bar_gc, bar_fs->fid);
 732         XSelectInput(display, r->bar_window, VisibilityChangeMask);
 733         if (bar_enabled)
 734                 XMapRaised(display, r->bar_window);
 735         DNPRINTF(SWM_D_MISC, "bar_setup: bar_window %lu\n", r->bar_window);
 736
 737         if (signal(SIGALRM, bar_signal) == SIG_ERR)
 738                 err(1, "could not install bar_signal");
 739         bar_refresh();
 740 }
 741
 742 void
 743 version(struct swm_region *r, union arg *args)
 744 {
 745         bar_version = !bar_version;
 746         if (bar_version)
 747                 snprintf(bar_vertext, sizeof bar_vertext, "Version: %s CVS: %s",
 748                     SWM_VERSION, cvstag);
 749         else
 750                 strlcpy(bar_vertext, "", sizeof bar_vertext);
 751         bar_update();
 752 }
 753
 754 void
 755 client_msg(struct ws_win *win, Atom a)
 756 {
 757         XClientMessageEvent     cm;
 758
 759         bzero(&cm, sizeof cm);
 760         cm.type = ClientMessage;
 761         cm.window = win->id;
 762         cm.message_type = aprot;
 763         cm.format = 32;
 764         cm.data.l[0] = a;
 765         cm.data.l[1] = CurrentTime;
 766         XSendEvent(display, win->id, False, 0L, (XEvent *)&cm);
 767 }
 768
 769 void
 770 config_win(struct ws_win *win)
 771 {
 772         XConfigureEvent         ce;
 773
 774         DNPRINTF(SWM_D_MISC, "config_win: win %lu x %d y %d w %d h %d\n",
 775             win->id, win->g.x, win->g.y, win->g.w, win->g.h);
 776         ce.type = ConfigureNotify;
 777         ce.display = display;
 778         ce.event = win->id;
 779         ce.window = win->id;
 780         ce.x = win->g.x;
 781         ce.y = win->g.y;
 782         ce.width = win->g.w;
 783         ce.height = win->g.h;
 784         ce.border_width = 1; /* XXX store this! */
 785         ce.above = None;
 786         ce.override_redirect = False;
 787         XSendEvent(display, win->id, False, StructureNotifyMask, (XEvent *)&ce);
 788 }
 789
 790 int
 791 count_win(struct workspace *ws, int count_transient)
 792 {
 793         struct ws_win           *win;
 794         int                     count = 0;
 795
 796         TAILQ_FOREACH(win, &ws->winlist, entry) {
 797                 if (count_transient == 0 && win->floating)
 798                         continue;
 799                 if (count_transient == 0 && win->transient)
 800                         continue;
 801                 count++;
 802         }
 803         DNPRINTF(SWM_D_MISC, "count_win: %d\n", count);
 804
 805         return (count);
 806 }
 807
 808 void
 809 quit(struct swm_region *r, union arg *args)
 810 {
 811         DNPRINTF(SWM_D_MISC, "quit\n");
 812         running = 0;
 813 }
 814
 815 void
 816 unmap_all(void)
 817 {
 818         struct ws_win           *win;
 819         int                     i, j;
 820
 821         for (i = 0; i < ScreenCount(display); i++)
 822                 for (j = 0; j < SWM_WS_MAX; j++)
 823                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
 824                                 XUnmapWindow(display, win->id);
 825 }
 826
 827 void
 828 fake_keypress(struct ws_win *win, int keysym, int modifiers)
 829 {
 830         XKeyEvent event;
 831
 832         event.display = display;        /* Ignored, but what the hell */
 833         event.window = win->id;
 834         event.root = win->s->root;
 835         event.subwindow = None;
 836         event.time = CurrentTime;
 837         event.x = win->g.x;
 838         event.y = win->g.y;
 839         event.x_root = 1;
 840         event.y_root = 1;
 841         event.same_screen = True;
 842         event.keycode = XKeysymToKeycode(display, keysym);
 843         event.state = modifiers;
 844
 845         event.type = KeyPress;
 846         XSendEvent(event.display, event.window, True,
 847             KeyPressMask, (XEvent *)&event);
 848
 849         event.type = KeyRelease;
 850         XSendEvent(event.display, event.window, True,
 851             KeyPressMask, (XEvent *)&event);
 852
 853 }
 854
 855 void
 856 restart(struct swm_region *r, union arg *args)
 857 {
 858         DNPRINTF(SWM_D_MISC, "restart: %s\n", start_argv[0]);
 859
 860         /* disable alarm because the following code may not be interrupted */
 861         alarm(0);
 862         if (signal(SIGALRM, SIG_IGN) == SIG_ERR)
 863                 errx(1, "can't disable alarm");
 864
 865         bar_extra_stop();
 866         bar_extra = 1;
 867         unmap_all();
 868         XCloseDisplay(display);
 869         execvp(start_argv[0], start_argv);
 870         fprintf(stderr, "execvp failed\n");
 871         perror(" failed");
 872         quit(NULL, NULL);
 873 }
 874
 875 struct swm_region *
 876 root_to_region(Window root)
 877 {
 878         struct swm_region       *r = NULL;
 879         Window                  rr, cr;
 880         int                     i, x, y, wx, wy;
 881         unsigned int            mask;
 882
 883         for (i = 0; i < ScreenCount(display); i++)
 884                 if (screens[i].root == root)
 885                         break;
 886
 887         if (XQueryPointer(display, screens[i].root,
 888             &rr, &cr, &x, &y, &wx, &wy, &mask) != False) {
 889                 /* choose a region based on pointer location */
 890                 TAILQ_FOREACH(r, &screens[i].rl, entry)
 891                         if (x >= X(r) && x <= X(r) + WIDTH(r) &&
 892                             y >= Y(r) && y <= Y(r) + HEIGHT(r))
 893                                 break;
 894         }
 895
 896         if (r == NULL)
 897                 r = TAILQ_FIRST(&screens[i].rl);
 898
 899         return (r);
 900 }
 901
 902 struct ws_win *
 903 find_window(Window id)
 904 {
 905         struct ws_win           *win;
 906         int                     i, j;
 907
 908         for (i = 0; i < ScreenCount(display); i++)
 909                 for (j = 0; j < SWM_WS_MAX; j++)
 910                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
 911                                 if (id == win->id)
 912                                         return (win);
 913         return (NULL);
 914 }
 915
 916 void
 917 spawn(struct swm_region *r, union arg *args)
 918 {
 919         char                    *ret;
 920         int                     si;
 921
 922         DNPRINTF(SWM_D_MISC, "spawn: %s\n", args->argv[0]);
 923         /*
 924          * The double-fork construct avoids zombie processes and keeps the code
 925          * clean from stupid signal handlers.
 926          */
 927         if (fork() == 0) {
 928                 if (fork() == 0) {
 929                         if (display)
 930                                 close(ConnectionNumber(display));
 931                         setenv("LD_PRELOAD", SWM_LIB, 1);
 932                         if (asprintf(&ret, "%d", r->ws->idx)) {
 933                                 setenv("_SWM_WS", ret, 1);
 934                                 free(ret);
 935                         }
 936                         if (asprintf(&ret, "%d", getpid())) {
 937                                 setenv("_SWM_PID", ret, 1);
 938                                 free(ret);
 939                         }
 940                         setsid();
 941                         /* kill stdin, mplayer, ssh-add etc. need that */
 942                         si = open("/dev/null", O_RDONLY, 0);
 943                         if (si == -1)
 944                                 err(1, "open /dev/null");
 945                         if (dup2(si, 0) == -1)
 946                                 err(1, "dup2 /dev/null");
 947                         execvp(args->argv[0], args->argv);
 948                         fprintf(stderr, "execvp failed\n");
 949                         perror(" failed");
 950                 }
 951                 exit(0);
 952         }
 953         wait(0);
 954 }
 955
 956 void
 957 spawnterm(struct swm_region *r, union arg *args)
 958 {
 959         DNPRINTF(SWM_D_MISC, "spawnterm\n");
 960
 961         if (term_width)
 962                 setenv("_SWM_XTERM_FONTADJ", "", 1);
 963         spawn(r, args);
 964 }
 965
 966 void
 967 unfocus_win(struct ws_win *win)
 968 {
 969         if (win == NULL)
 970                 return;
 971
 972         if (win->ws->focus != win && win->ws->focus != NULL)
 973                 win->ws->focus_prev = win->ws->focus;
 974
 975         if (win->ws->r == NULL)
 976                 return;
 977
 978         grabbuttons(win, 0);
 979         XSetWindowBorder(display, win->id,
 980             win->ws->r->s->c[SWM_S_COLOR_UNFOCUS].color);
 981         win->got_focus = 0;
 982         if (win->ws->focus == win)
 983                 win->ws->focus = NULL;
 984         if (cur_focus == win)
 985                 cur_focus = NULL;
 986 }
 987
 988 void
 989 unfocus_all(void)
 990 {
 991         struct ws_win           *win;
 992         int                     i, j;
 993
 994         DNPRINTF(SWM_D_FOCUS, "unfocus_all:\n");
 995
 996         for (i = 0; i < ScreenCount(display); i++)
 997                 for (j = 0; j < SWM_WS_MAX; j++)
 998                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
 999                                 unfocus_win(win);
1000 }
1001
1002 void
1003 focus_win(struct ws_win *win)
1004 {
1005         DNPRINTF(SWM_D_FOCUS, "focus_win: id: %lu\n", win ? win->id : 0);
1006
1007         if (win == NULL)
1008                 return;
1009
1010         if (cur_focus)
1011                 unfocus_win(cur_focus);
1012         if (win->ws->focus) {
1013                 /* probably shouldn't happen due to the previous unfocus_win */
1014                 DNPRINTF(SWM_D_FOCUS, "unfocusing win->ws->focus: %lu\n",
1015                     win->ws->focus->id);
1016                 unfocus_win(win->ws->focus);
1017         }
1018         win->ws->focus = win;
1019         if (win->ws->r != NULL) {
1020                 cur_focus = win;
1021                 if (!win->got_focus) {
1022                         XSetWindowBorder(display, win->id,
1023                             win->ws->r->s->c[SWM_S_COLOR_FOCUS].color);
1024                         grabbuttons(win, 1);
1025                 }
1026                 win->got_focus = 1;
1027                 XSetInputFocus(display, win->id,
1028                     RevertToPointerRoot, CurrentTime);
1029         }
1030 }
1031
1032 void
1033 switchws(struct swm_region *r, union arg *args)
1034 {
1035         int                     wsid = args->id;
1036         struct swm_region       *this_r, *other_r;
1037         struct ws_win           *win;
1038         struct workspace        *new_ws, *old_ws;
1039
1040         this_r = r;
1041         old_ws = this_r->ws;
1042         new_ws = &this_r->s->ws[wsid];
1043
1044         DNPRINTF(SWM_D_WS, "switchws screen[%d]:%dx%d+%d+%d: "
1045             "%d -> %d\n", r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r),
1046             old_ws->idx, wsid);
1047
1048         if (new_ws == old_ws)
1049                 return;
1050
1051         other_r = new_ws->r;
1052         if (!other_r) {
1053                 /* if the other workspace is hidden, switch windows */
1054                 /* map new window first to prevent ugly blinking */
1055                 old_ws->r = NULL;
1056                 old_ws->restack = 1;
1057
1058                 TAILQ_FOREACH(win, &new_ws->winlist, entry)
1059                         XMapRaised(display, win->id);
1060
1061                 TAILQ_FOREACH(win, &old_ws->winlist, entry)
1062                         XUnmapWindow(display, win->id);
1063         } else {
1064                 other_r->ws = old_ws;
1065                 old_ws->r = other_r;
1066         }
1067         this_r->ws = new_ws;
1068         new_ws->r = this_r;
1069
1070         ignore_enter = 1;
1071         /* set focus */
1072         if (new_ws->focus == NULL)
1073                 new_ws->focus = TAILQ_FIRST(&new_ws->winlist);
1074         if (new_ws->focus)
1075                 focus_win(new_ws->focus);
1076         stack();
1077         bar_update();
1078 }
1079
1080 void
1081 cyclews(struct swm_region *r, union arg *args)
1082 {
1083         union                   arg a;
1084         struct swm_screen       *s = r->s;
1085
1086         DNPRINTF(SWM_D_WS, "cyclews id %d "
1087             "in screen[%d]:%dx%d+%d+%d ws %d\n", args->id,
1088             r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
1089
1090         a.id = r->ws->idx;
1091         do {
1092                 switch (args->id) {
1093                 case SWM_ARG_ID_CYCLEWS_UP:
1094                         if (a.id < SWM_WS_MAX - 1)
1095                                 a.id++;
1096                         else
1097                                 a.id = 0;
1098                         break;
1099                 case SWM_ARG_ID_CYCLEWS_DOWN:
1100                         if (a.id > 0)
1101                                 a.id--;
1102                         else
1103                                 a.id = SWM_WS_MAX - 1;
1104                         break;
1105                 default:
1106                         return;
1107                 };
1108
1109                 if (cycle_empty == 0 && TAILQ_EMPTY(&s->ws[a.id].winlist))
1110                         continue;
1111                 if (cycle_visible == 0 && s->ws[a.id].r != NULL)
1112                         continue;
1113
1114                 switchws(r, &a);
1115         } while (a.id != r->ws->idx);
1116 }
1117
1118 void
1119 cyclescr(struct swm_region *r, union arg *args)
1120 {
1121         struct swm_region       *rr;
1122         int                     i;
1123
1124         i = r->s->idx;
1125         switch (args->id) {
1126         case SWM_ARG_ID_CYCLESC_UP:
1127                 rr = TAILQ_NEXT(r, entry);
1128                 if (rr == NULL)
1129                         rr = TAILQ_FIRST(&screens[i].rl);
1130                 break;
1131         case SWM_ARG_ID_CYCLESC_DOWN:
1132                 rr = TAILQ_PREV(r, swm_region_list, entry);
1133                 if (rr == NULL)
1134                         rr = TAILQ_LAST(&screens[i].rl, swm_region_list);
1135                 break;
1136         default:
1137                 return;
1138         };
1139         unfocus_all();
1140         XSetInputFocus(display, PointerRoot, RevertToPointerRoot, CurrentTime);
1141         XWarpPointer(display, None, rr->s[i].root, 0, 0, 0, 0, rr->g.x,
1142             rr->g.y + bar_enabled ? bar_height : 0);
1143 }
1144
1145 void
1146 swapwin(struct swm_region *r, union arg *args)
1147 {
1148         struct ws_win           *target, *source;
1149         struct ws_win_list      *wl;
1150
1151
1152         DNPRINTF(SWM_D_WS, "swapwin id %d "
1153             "in screen %d region %dx%d+%d+%d ws %d\n", args->id,
1154             r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
1155         if (cur_focus == NULL)
1156                 return;
1157
1158         source = cur_focus;
1159         wl = &source->ws->winlist;
1160
1161         switch (args->id) {
1162         case SWM_ARG_ID_SWAPPREV:
1163                 target = TAILQ_PREV(source, ws_win_list, entry);
1164                 TAILQ_REMOVE(wl, cur_focus, entry);
1165                 if (target == NULL)
1166                         TAILQ_INSERT_TAIL(wl, source, entry);
1167                 else
1168                         TAILQ_INSERT_BEFORE(target, source, entry);
1169                 break;
1170         case SWM_ARG_ID_SWAPNEXT:
1171                 target = TAILQ_NEXT(source, entry);
1172                 TAILQ_REMOVE(wl, source, entry);
1173                 if (target == NULL)
1174                         TAILQ_INSERT_HEAD(wl, source, entry);
1175                 else
1176                         TAILQ_INSERT_AFTER(wl, target, source, entry);
1177                 break;
1178         case SWM_ARG_ID_SWAPMAIN:
1179                 target = TAILQ_FIRST(wl);
1180                 if (target == source) {
1181                         if (source->ws->focus_prev != NULL &&
1182                             source->ws->focus_prev != target)
1183
1184                                 source = source->ws->focus_prev;
1185                         else
1186                                 return;
1187                 }
1188                 source->ws->focus_prev = target;
1189                 TAILQ_REMOVE(wl, target, entry);
1190                 TAILQ_INSERT_BEFORE(source, target, entry);
1191                 TAILQ_REMOVE(wl, source, entry);
1192                 TAILQ_INSERT_HEAD(wl, source, entry);
1193                 break;
1194         default:
1195                 DNPRINTF(SWM_D_MOVE, "invalid id: %d\n", args->id);
1196                 return;
1197         }
1198
1199         ignore_enter = 1;
1200         stack();
1201 }
1202
1203 void
1204 focus(struct swm_region *r, union arg *args)
1205 {
1206         struct ws_win           *winfocus, *winlostfocus;
1207         struct ws_win_list      *wl;
1208
1209         DNPRINTF(SWM_D_FOCUS, "focus: id %d\n", args->id);
1210         if (cur_focus == NULL)
1211                 return;
1212
1213         wl = &cur_focus->ws->winlist;
1214
1215         winlostfocus = cur_focus;
1216
1217         switch (args->id) {
1218         case SWM_ARG_ID_FOCUSPREV:
1219                 winfocus = TAILQ_PREV(cur_focus, ws_win_list, entry);
1220                 if (winfocus == NULL)
1221                         winfocus = TAILQ_LAST(wl, ws_win_list);
1222                 break;
1223
1224         case SWM_ARG_ID_FOCUSNEXT:
1225                 winfocus = TAILQ_NEXT(cur_focus, entry);
1226                 if (winfocus == NULL)
1227                         winfocus = TAILQ_FIRST(wl);
1228                 break;
1229
1230         case SWM_ARG_ID_FOCUSMAIN:
1231                 winfocus = TAILQ_FIRST(wl);
1232                 if (winfocus == cur_focus)
1233                         winfocus = cur_focus->ws->focus_prev;
1234                 if (winfocus == NULL)
1235                         return;
1236                 break;
1237
1238         default:
1239                 return;
1240         }
1241
1242         if (winfocus == winlostfocus || winfocus == NULL)
1243                 return;
1244
1245         XMapRaised(display, winfocus->id);
1246         focus_win(winfocus);
1247         XSync(display, False);
1248 }
1249
1250 void
1251 cycle_layout(struct swm_region *r, union arg *args)
1252 {
1253         struct workspace        *ws = r->ws;
1254
1255         DNPRINTF(SWM_D_EVENT, "cycle_layout: workspace: %d\n", ws->idx);
1256
1257         ws->cur_layout++;
1258         if (ws->cur_layout->l_stack == NULL)
1259                 ws->cur_layout = &layouts[0];
1260         ignore_enter = 1;
1261         stack();
1262 }
1263
1264 void
1265 stack_config(struct swm_region *r, union arg *args)
1266 {
1267         struct workspace        *ws = r->ws;
1268
1269         DNPRINTF(SWM_D_STACK, "stack_config for workspace %d (id %d\n",
1270             args->id, ws->idx);
1271
1272         if (ws->cur_layout->l_config != NULL)
1273                 ws->cur_layout->l_config(ws, args->id);
1274
1275         if (args->id != SWM_ARG_ID_STACKINIT);
1276                 stack();
1277 }
1278
1279 void
1280 stack(void) {
1281         struct swm_geometry     g;
1282         struct swm_region       *r;
1283         int                     i, j;
1284
1285         DNPRINTF(SWM_D_STACK, "stack\n");
1286
1287         for (i = 0; i < ScreenCount(display); i++) {
1288                 j = 0;
1289                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
1290                         DNPRINTF(SWM_D_STACK, "stacking workspace %d "
1291                             "(screen %d, region %d)\n", r->ws->idx, i, j++);
1292
1293                         /* start with screen geometry, adjust for bar */
1294                         g = r->g;
1295                         g.w -= 2;
1296                         g.h -= 2;
1297                         if (bar_enabled) {
1298                                 g.y += bar_height;
1299                                 g.h -= bar_height;
1300                         }
1301
1302                         r->ws->restack = 0;
1303                         r->ws->cur_layout->l_stack(r->ws, &g);
1304                 }
1305         }
1306         if (font_adjusted)
1307                 font_adjusted--;
1308         XSync(display, False);
1309 }
1310
1311 void
1312 stack_floater(struct ws_win *win, struct swm_region *r)
1313 {
1314         unsigned int            mask;
1315         XWindowChanges          wc;
1316
1317         bzero(&wc, sizeof wc);
1318         mask = CWX | CWY | CWBorderWidth | CWWidth | CWHeight;
1319         if ((win->quirks & SWM_Q_FULLSCREEN) && (win->g.w == WIDTH(r)) &&
1320             (win->g.h == HEIGHT(r)))
1321                 wc.border_width = 0;
1322         else
1323                 wc.border_width = 1;
1324         if (win->transient && (win->quirks & SWM_Q_TRANSSZ)) {
1325                 win->g.w = (double)WIDTH(r) * dialog_ratio;
1326                 win->g.h = (double)HEIGHT(r) * dialog_ratio;
1327         }
1328         wc.width = win->g.w;
1329         wc.height = win->g.h;
1330         if (win->manual) {
1331                 wc.x = win->g.x;
1332                 wc.y = win->g.y;
1333         } else {
1334                 wc.x = (WIDTH(r) - win->g.w) / 2;
1335                 wc.y = (HEIGHT(r) - win->g.h) / 2;
1336         }
1337
1338         DNPRINTF(SWM_D_STACK, "stack_floater: win %lu x %d y %d w %d h %d\n",
1339             win->id, wc.x, wc.y, wc.width, wc.height);
1340
1341         XConfigureWindow(display, win->id, mask, &wc);
1342 }
1343
1344 /*
1345  * Send keystrokes to terminal to decrease/increase the font size as the
1346  * window size changes.
1347  */
1348 void
1349 adjust_font(struct ws_win *win)
1350 {
1351         if (!(win->quirks & SWM_Q_XTERM_FONTADJ) ||
1352             win->floating || win->transient)
1353                 return;
1354
1355         if (win->sh.width_inc && win->last_inc != win->sh.width_inc &&
1356             win->g.w / win->sh.width_inc < term_width &&
1357             win->font_steps < SWM_MAX_FONT_STEPS) {
1358                 win->font_size_boundary[win->font_steps] =
1359                     (win->sh.width_inc * term_width) + win->sh.base_width;
1360                 win->font_steps++;
1361                 font_adjusted++;
1362                 win->last_inc = win->sh.width_inc;
1363                 fake_keypress(win, XK_KP_Subtract, ShiftMask);
1364         } else if (win->font_steps && win->last_inc != win->sh.width_inc &&
1365             win->g.w > win->font_size_boundary[win->font_steps - 1]) {
1366                 win->font_steps--;
1367                 font_adjusted++;
1368                 win->last_inc = win->sh.width_inc;
1369                 fake_keypress(win, XK_KP_Add, ShiftMask);
1370         }
1371 }
1372
1373 #define SWAPXY(g)       do {                            \
1374         int tmp;                                        \
1375         tmp = (g)->y; (g)->y = (g)->x; (g)->x = tmp;    \
1376         tmp = (g)->h; (g)->h = (g)->w; (g)->w = tmp;    \
1377 } while (0)
1378 void
1379 stack_master(struct workspace *ws, struct swm_geometry *g, int rot, int flip)
1380 {
1381         XWindowChanges          wc;
1382         struct swm_geometry     win_g, r_g = *g;
1383         struct ws_win           *win, *winfocus;
1384         int                     i, j, s, stacks;
1385         int                     w_inc = 1, h_inc, w_base = 1, h_base;
1386         int                     hrh, extra = 0, h_slice, last_h = 0;
1387         int                     split, colno, winno, mwin, msize, mscale;
1388         int                     remain, missing, v_slice;
1389         unsigned int            mask;
1390
1391         DNPRINTF(SWM_D_STACK, "stack_master: workspace: %d\n rot=%s flip=%s",
1392             ws->idx, rot ? "yes" : "no", flip ? "yes" : "no");
1393
1394         winno = count_win(ws, 0);
1395         if (winno == 0 && count_win(ws, 1) == 0)
1396                 return;
1397
1398         if (ws->focus == NULL)
1399                 ws->focus = TAILQ_FIRST(&ws->winlist);
1400         winfocus = cur_focus ? cur_focus : ws->focus;
1401
1402         TAILQ_FOREACH(win, &ws->winlist, entry)
1403                 if (win->transient == 0 && win->floating == 0)
1404                         break;
1405
1406         if (win == NULL)
1407                 goto notiles;
1408
1409         if (rot) {
1410                 w_inc = win->sh.width_inc;
1411                 w_base = win->sh.base_width;
1412                 mwin = ws->l_state.horizontal_mwin;
1413                 mscale = ws->l_state.horizontal_msize;
1414                 stacks = ws->l_state.horizontal_stacks;
1415                 SWAPXY(&r_g);
1416         } else {
1417                 w_inc = win->sh.height_inc;
1418                 w_base = win->sh.base_height;
1419                 mwin = ws->l_state.vertical_mwin;
1420                 mscale = ws->l_state.vertical_msize;
1421                 stacks = ws->l_state.vertical_stacks;
1422         }
1423         win_g = r_g;
1424
1425         if (stacks > winno - mwin)
1426                 stacks = winno - mwin;
1427         if (stacks < 1)
1428                 stacks = 1;
1429
1430         h_slice = r_g.h / SWM_H_SLICE;
1431         if (mwin && winno > mwin) {
1432                 v_slice = r_g.w / SWM_V_SLICE;
1433
1434                 split = mwin;
1435                 colno = split;
1436                 win_g.w = v_slice * mscale;
1437
1438                 if (w_inc > 1 && w_inc < v_slice) {
1439                         /* adjust for window's requested size increment */
1440                         remain = (win_g.w - w_base) % w_inc;
1441                         missing = w_inc - remain;
1442                         win_g.w -= remain;
1443                         extra += remain;
1444                 }
1445
1446                 msize = win_g.w;
1447                 if (flip)
1448                         win_g.x += r_g.w - msize;
1449         } else {
1450                 msize = -2;
1451                 colno = split = winno / stacks;
1452                 win_g.w = ((r_g.w - (stacks * 2) + 2) / stacks);
1453         }
1454         hrh = r_g.h / colno;
1455         extra = r_g.h - (colno * hrh);
1456         win_g.h = hrh - 2;
1457
1458         /*  stack all the tiled windows */
1459         i = j = 0, s = stacks;
1460         TAILQ_FOREACH(win, &ws->winlist, entry) {
1461                 if (win->transient != 0 || win->floating != 0)
1462                         continue;
1463
1464                 if (split && i == split) {
1465                         colno = (winno - mwin) / stacks;
1466                         if (s <= (winno - mwin) % stacks)
1467                                 colno++;
1468                         split = split + colno;
1469                         hrh = (r_g.h / colno);
1470                         extra = r_g.h - (colno * hrh);
1471                         if (flip)
1472                                 win_g.x = r_g.x;
1473                         else
1474                                 win_g.x += win_g.w + 2;
1475                         win_g.w = (r_g.w - msize - (stacks * 2)) / stacks;
1476                         if (s == 1)
1477                                 win_g.w += (r_g.w - msize - (stacks * 2)) %
1478                                     stacks;
1479                         s--;
1480                         j = 0;
1481                 }
1482                 win_g.h = hrh - 2;
1483                 if (rot) {
1484                         h_inc = win->sh.width_inc;
1485                         h_base = win->sh.base_width;
1486                 } else {
1487                         h_inc = win->sh.height_inc;
1488                         h_base = win->sh.base_height;
1489                 }
1490                 if (j == colno - 1) {
1491                         win_g.h = hrh + extra;
1492                 } else if (h_inc > 1 && h_inc < h_slice) {
1493                         /* adjust for window's requested size increment */
1494                         remain = (win_g.h - h_base) % h_inc;
1495                         missing = h_inc - remain;
1496
1497                         if (missing <= extra || j == 0) {
1498                                 extra -= missing;
1499                                 win_g.h += missing;
1500                         } else {
1501                                 win_g.h -= remain;
1502                                 extra += remain;
1503                         }
1504                 }
1505
1506                 if (j == 0)
1507                         win_g.y = r_g.y;
1508                 else
1509                         win_g.y += last_h + 2;
1510
1511                 bzero(&wc, sizeof wc);
1512                 wc.border_width = 1;
1513                 if (rot) {
1514                         win->g.x = wc.x = win_g.y;
1515                         win->g.y = wc.y = win_g.x;
1516                         win->g.w = wc.width = win_g.h;
1517                         win->g.h = wc.height = win_g.w;
1518                 } else {
1519                         win->g.x = wc.x = win_g.x;
1520                         win->g.y = wc.y = win_g.y;
1521                         win->g.w = wc.width = win_g.w;
1522                         win->g.h = wc.height = win_g.h;
1523                 }
1524                 adjust_font(win);
1525                 mask = CWX | CWY | CWWidth | CWHeight | CWBorderWidth;
1526                 XConfigureWindow(display, win->id, mask, &wc);
1527                 XMapRaised(display, win->id);
1528
1529                 last_h = win_g.h;
1530                 i++;
1531                 j++;
1532         }
1533
1534  notiles:
1535         /* now, stack all the floaters and transients */
1536         TAILQ_FOREACH(win, &ws->winlist, entry) {
1537                 if (win->transient == 0 && win->floating == 0)
1538                         continue;
1539
1540                 stack_floater(win, ws->r);
1541                 XMapRaised(display, win->id);
1542         }
1543
1544         if (winfocus)
1545                 focus_win(winfocus); /* has to be done outside of the loop */
1546 }
1547
1548 void
1549 vertical_config(struct workspace *ws, int id)
1550 {
1551         DNPRINTF(SWM_D_STACK, "vertical_resize: workspace: %d\n", ws->idx);
1552
1553         switch (id) {
1554         case SWM_ARG_ID_STACKRESET:
1555         case SWM_ARG_ID_STACKINIT:
1556                 ws->l_state.vertical_msize = SWM_V_SLICE / 2;
1557                 ws->l_state.vertical_mwin = 1;
1558                 ws->l_state.vertical_stacks = 1;
1559                 break;
1560         case SWM_ARG_ID_MASTERSHRINK:
1561                 if (ws->l_state.vertical_msize > 1)
1562                         ws->l_state.vertical_msize--;
1563                 break;
1564         case SWM_ARG_ID_MASTERGROW:
1565                 if (ws->l_state.vertical_msize < SWM_V_SLICE - 1)
1566                         ws->l_state.vertical_msize++;
1567                 break;
1568         case SWM_ARG_ID_MASTERADD:
1569                 ws->l_state.vertical_mwin++;
1570                 break;
1571         case SWM_ARG_ID_MASTERDEL:
1572                 if (ws->l_state.vertical_mwin > 0)
1573                         ws->l_state.vertical_mwin--;
1574                 break;
1575         case SWM_ARG_ID_STACKINC:
1576                 ws->l_state.vertical_stacks++;
1577                 break;
1578         case SWM_ARG_ID_STACKDEC:
1579                 if (ws->l_state.vertical_stacks > 1)
1580                         ws->l_state.vertical_stacks--;
1581                 break;
1582         default:
1583                 return;
1584         }
1585 }
1586
1587 void
1588 vertical_stack(struct workspace *ws, struct swm_geometry *g)
1589 {
1590         DNPRINTF(SWM_D_STACK, "vertical_stack: workspace: %d\n", ws->idx);
1591
1592         stack_master(ws, g, 0, 0);
1593 }
1594
1595 void
1596 horizontal_config(struct workspace *ws, int id)
1597 {
1598         DNPRINTF(SWM_D_STACK, "horizontal_config: workspace: %d\n", ws->idx);
1599
1600         switch (id) {
1601         case SWM_ARG_ID_STACKRESET:
1602         case SWM_ARG_ID_STACKINIT:
1603                 ws->l_state.horizontal_mwin = 1;
1604                 ws->l_state.horizontal_msize = SWM_H_SLICE / 2;
1605                 ws->l_state.horizontal_stacks = 1;
1606                 break;
1607         case SWM_ARG_ID_MASTERSHRINK:
1608                 if (ws->l_state.horizontal_msize > 1)
1609                         ws->l_state.horizontal_msize--;
1610                 break;
1611         case SWM_ARG_ID_MASTERGROW:
1612                 if (ws->l_state.horizontal_msize < SWM_H_SLICE - 1)
1613                         ws->l_state.horizontal_msize++;
1614                 break;
1615         case SWM_ARG_ID_MASTERADD:
1616                 ws->l_state.horizontal_mwin++;
1617                 break;
1618         case SWM_ARG_ID_MASTERDEL:
1619                 if (ws->l_state.horizontal_mwin > 0)
1620                         ws->l_state.horizontal_mwin--;
1621                 break;
1622         case SWM_ARG_ID_STACKINC:
1623                 ws->l_state.horizontal_stacks++;
1624                 break;
1625         case SWM_ARG_ID_STACKDEC:
1626                 if (ws->l_state.horizontal_stacks > 1)
1627                         ws->l_state.horizontal_stacks--;
1628                 break;
1629         default:
1630                 return;
1631         }
1632 }
1633
1634 void
1635 horizontal_stack(struct workspace *ws, struct swm_geometry *g)
1636 {
1637         DNPRINTF(SWM_D_STACK, "vertical_stack: workspace: %d\n", ws->idx);
1638
1639         stack_master(ws, g, 1, 0);
1640 }
1641
1642 /* fullscreen view */
1643 void
1644 max_stack(struct workspace *ws, struct swm_geometry *g)
1645 {
1646         XWindowChanges          wc;
1647         struct swm_geometry     gg = *g;
1648         struct ws_win           *win, *winfocus;
1649         unsigned int            mask;
1650         int                     winno;
1651
1652         /* XXX this function needs to be rewritten it sucks crap */
1653
1654         DNPRINTF(SWM_D_STACK, "max_stack: workspace: %d\n", ws->idx);
1655
1656         winno = count_win(ws, 0);
1657         if (winno == 0 && count_win(ws, 1) == 0)
1658                 return;
1659
1660         if (ws->focus == NULL)
1661                 ws->focus = TAILQ_FIRST(&ws->winlist);
1662         winfocus = cur_focus ? cur_focus : ws->focus;
1663
1664         TAILQ_FOREACH(win, &ws->winlist, entry) {
1665                 if (win->transient != 0 || win->floating != 0) {
1666                         if (win == ws->focus) {
1667                                 /* XXX maximize? */
1668                                 stack_floater(win, ws->r);
1669                                 XMapRaised(display, win->id);
1670                         } else {
1671                                 /* XXX this sucks */
1672                                 XUnmapWindow(display, win->id);
1673                         }
1674                 } else {
1675                         bzero(&wc, sizeof wc);
1676                         wc.border_width = 1;
1677                         win->g.x = wc.x = gg.x;
1678                         win->g.y = wc.y = gg.y;
1679                         win->g.w = wc.width = gg.w;
1680                         win->g.h = wc.height = gg.h;
1681                         mask = CWX | CWY | CWWidth | CWHeight | CWBorderWidth;
1682                         XConfigureWindow(display, win->id, mask, &wc);
1683
1684                         if (win == ws->focus) {
1685                                 XMapRaised(display, win->id);
1686                         } else
1687                                 XUnmapWindow(display, win->id);
1688                 }
1689         }
1690
1691         if (winfocus)
1692                 focus_win(winfocus); /* has to be done outside of the loop */
1693 }
1694
1695 void
1696 send_to_ws(struct swm_region *r, union arg *args)
1697 {
1698         int                     wsid = args->id;
1699         struct ws_win           *win = cur_focus;
1700         struct workspace        *ws, *nws;
1701         Atom                    ws_idx_atom = 0;
1702         unsigned char           ws_idx_str[SWM_PROPLEN];
1703
1704         if (win == NULL)
1705                 return;
1706
1707         DNPRINTF(SWM_D_MOVE, "send_to_ws: win: %lu\n", win->id);
1708
1709         ws = win->ws;
1710         nws = &win->s->ws[wsid];
1711
1712         XUnmapWindow(display, win->id);
1713
1714         /* find a window to focus */
1715         ws->focus = TAILQ_PREV(win, ws_win_list, entry);
1716         if (ws->focus == NULL)
1717                 ws->focus = TAILQ_FIRST(&ws->winlist);
1718         if (ws->focus == win)
1719                 ws->focus = NULL;
1720
1721         TAILQ_REMOVE(&ws->winlist, win, entry);
1722
1723         TAILQ_INSERT_TAIL(&nws->winlist, win, entry);
1724         win->ws = nws;
1725
1726         /* Try to update the window's workspace property */
1727         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
1728         if (ws_idx_atom &&
1729             snprintf(ws_idx_str, SWM_PROPLEN, "%d", nws->idx) < SWM_PROPLEN) {
1730                 DNPRINTF(SWM_D_PROP, "setting property _SWM_WS to %s\n",
1731                     ws_idx_str);
1732                 XChangeProperty(display, win->id, ws_idx_atom, XA_STRING, 8,
1733                     PropModeReplace, ws_idx_str, SWM_PROPLEN);
1734         }
1735
1736         if (count_win(nws, 1) == 1)
1737                 nws->focus = win;
1738         ws->restack = 1;
1739         nws->restack = 1;
1740
1741         stack();
1742 }
1743
1744 void
1745 wkill(struct swm_region *r, union arg *args)
1746 {
1747         DNPRINTF(SWM_D_MISC, "wkill %d\n", args->id);
1748
1749         if(r->ws->focus == NULL)
1750                 return;
1751
1752         if (args->id == SWM_ARG_ID_KILLWINDOW)
1753                 XKillClient(display, r->ws->focus->id);
1754         else
1755                 if (r->ws->focus->can_delete)
1756                         client_msg(r->ws->focus, adelete);
1757 }
1758
1759 void
1760 floating_toggle(struct swm_region *r, union arg *args)
1761 {
1762         struct ws_win   *win = cur_focus;
1763
1764         if (win == NULL)
1765                 return;
1766
1767         win->floating = !win->floating;
1768         win->manual = 0;
1769         stack();
1770         focus_win(win);
1771 }
1772
1773 void
1774 resize_window(struct ws_win *win, int center)
1775 {
1776         unsigned int            mask;
1777         XWindowChanges          wc;
1778         struct swm_region       *r;
1779
1780         r = root_to_region(win->wa.root);
1781         bzero(&wc, sizeof wc);
1782         mask = CWBorderWidth | CWWidth | CWHeight;
1783         wc.border_width = 1;
1784         wc.width = win->g.w;
1785         wc.height = win->g.h;
1786         if (center == SWM_ARG_ID_CENTER) {
1787                 wc.x = (WIDTH(r) - win->g.w) / 2;
1788                 wc.y = (HEIGHT(r) - win->g.h) / 2;
1789                 mask |= CWX | CWY;
1790         }
1791
1792         DNPRINTF(SWM_D_STACK, "resize_window: win %lu x %d y %d w %d h %d\n",
1793             win->id, wc.x, wc.y, wc.width, wc.height);
1794
1795         XConfigureWindow(display, win->id, mask, &wc);
1796         config_win(win);
1797 }
1798
1799 void
1800 resize(struct ws_win *win, union arg *args)
1801 {
1802         XEvent                  ev;
1803         Time                    time = 0;
1804
1805         DNPRINTF(SWM_D_MOUSE, "resize: win %lu floating %d trans %d\n",
1806             win->id, win->floating, win->transient);
1807
1808         if (!(win->transient != 0 || win->floating != 0))
1809                 return;
1810
1811         if (XGrabPointer(display, win->id, False, MOUSEMASK, GrabModeAsync,
1812             GrabModeAsync, None, None /* cursor */, CurrentTime) != GrabSuccess)
1813                 return;
1814         XWarpPointer(display, None, win->id, 0, 0, 0, 0, win->g.w, win->g.h);
1815         do {
1816                 XMaskEvent(display, MOUSEMASK | ExposureMask |
1817                     SubstructureRedirectMask, &ev);
1818                 switch(ev.type) {
1819                 case ConfigureRequest:
1820                 case Expose:
1821                 case MapRequest:
1822                         handler[ev.type](&ev);
1823                         break;
1824                 case MotionNotify:
1825                         if (ev.xmotion.x <= 1)
1826                                 ev.xmotion.x = 1;
1827                         if (ev.xmotion.y <= 1)
1828                                 ev.xmotion.y = 1;
1829                         win->g.w = ev.xmotion.x;
1830                         win->g.h = ev.xmotion.y;
1831
1832                         /* not free, don't sync more than 60 times / second */
1833                         if ((ev.xmotion.time - time) > (1000 / 60) ) {
1834                                 time = ev.xmotion.time;
1835                                 XSync(display, False);
1836                                 resize_window(win, args->id);
1837                         }
1838                         break;
1839                 }
1840         } while (ev.type != ButtonRelease);
1841         if (time) {
1842                 XSync(display, False);
1843                 resize_window(win, args->id);
1844         }
1845         XWarpPointer(display, None, win->id, 0, 0, 0, 0, win->g.w - 1,
1846             win->g.h - 1);
1847         XUngrabPointer(display, CurrentTime);
1848
1849         /* drain events */
1850         while (XCheckMaskEvent(display, EnterWindowMask, &ev));
1851 }
1852
1853 void
1854 move_window(struct ws_win *win)
1855 {
1856         unsigned int            mask;
1857         XWindowChanges          wc;
1858         struct swm_region       *r;
1859
1860         r = root_to_region(win->wa.root);
1861         bzero(&wc, sizeof wc);
1862         mask = CWX | CWY;
1863         wc.x = win->g.x;
1864         wc.y = win->g.y;
1865
1866         DNPRINTF(SWM_D_STACK, "move_window: win %lu x %d y %d w %d h %d\n",
1867             win->id, wc.x, wc.y, wc.width, wc.height);
1868
1869         XConfigureWindow(display, win->id, mask, &wc);
1870         config_win(win);
1871 }
1872
1873 void
1874 move(struct ws_win *win, union arg *args)
1875 {
1876         XEvent                  ev;
1877         Time                    time = 0;
1878         int                     restack = 0;
1879
1880         DNPRINTF(SWM_D_MOUSE, "move: win %lu floating %d trans %d\n",
1881             win->id, win->floating, win->transient);
1882
1883         if (win->floating == 0) {
1884                 win->floating = 1;
1885                 win->manual = 1;
1886                 restack = 1;
1887         }
1888
1889         if (XGrabPointer(display, win->id, False, MOUSEMASK, GrabModeAsync,
1890             GrabModeAsync, None, None /* cursor */, CurrentTime) != GrabSuccess)
1891                 return;
1892         XWarpPointer(display, None, win->id, 0, 0, 0, 0, 0, 0);
1893         do {
1894                 XMaskEvent(display, MOUSEMASK | ExposureMask |
1895                     SubstructureRedirectMask, &ev);
1896                 switch(ev.type) {
1897                 case ConfigureRequest:
1898                 case Expose:
1899                 case MapRequest:
1900                         handler[ev.type](&ev);
1901                         break;
1902                 case MotionNotify:
1903                         win->g.x = ev.xmotion.x_root;
1904                         win->g.y = ev.xmotion.y_root;
1905
1906                         /* not free, don't sync more than 60 times / second */
1907                         if ((ev.xmotion.time - time) > (1000 / 60) ) {
1908                                 time = ev.xmotion.time;
1909                                 XSync(display, False);
1910                                 move_window(win);
1911                         }
1912                         break;
1913                 }
1914         } while (ev.type != ButtonRelease);
1915         if (time) {
1916                 XSync(display, False);
1917                 move_window(win);
1918         }
1919         XWarpPointer(display, None, win->id, 0, 0, 0, 0, 0, 0);
1920         XUngrabPointer(display, CurrentTime);
1921         if (restack)
1922                 stack();
1923
1924         /* drain events */
1925         while (XCheckMaskEvent(display, EnterWindowMask, &ev));
1926 }
1927
1928 /* key definitions */
1929 void dummykeyfunc(struct swm_region *r, union arg *args) {};
1930 void legacyfunc(struct swm_region *r, union arg *args) {};
1931
1932 struct keyfunc {
1933         char                    name[SWM_FUNCNAME_LEN];
1934         void                    (*func)(struct swm_region *r, union arg *);
1935         union arg               args;
1936 } keyfuncs[kf_invalid + 1] = {
1937         /* name                 function        argument */
1938         { "cycle_layout",       cycle_layout,   {0} },
1939         { "stack_reset",        stack_config,   {.id = SWM_ARG_ID_STACKRESET} },
1940         { "master_shrink",      stack_config,   {.id = SWM_ARG_ID_MASTERSHRINK} },
1941         { "master_grow",        stack_config,   {.id = SWM_ARG_ID_MASTERGROW} },
1942         { "master_add",         stack_config,   {.id = SWM_ARG_ID_MASTERADD} },
1943         { "master_del",         stack_config,   {.id = SWM_ARG_ID_MASTERDEL} },
1944         { "stack_inc",          stack_config,   {.id = SWM_ARG_ID_STACKINC} },
1945         { "stack_dec",          stack_config,   {.id = SWM_ARG_ID_STACKDEC} },
1946         { "swap_main",          swapwin,        {.id = SWM_ARG_ID_SWAPMAIN} },
1947         { "focus_next",         focus,          {.id = SWM_ARG_ID_FOCUSNEXT} },
1948         { "focus_prev",         focus,          {.id = SWM_ARG_ID_FOCUSPREV} },
1949         { "swap_next",          swapwin,        {.id = SWM_ARG_ID_SWAPNEXT} },
1950         { "swap_prev",          swapwin,        {.id = SWM_ARG_ID_SWAPPREV} },
1951         { "spawn_term",         spawnterm,      {.argv = spawn_term} },
1952         { "spawn_menu",         legacyfunc,     {0} },
1953         { "quit",               quit,           {0} },
1954         { "restart",            restart,        {0} },
1955         { "focus_main",         focus,          {.id = SWM_ARG_ID_FOCUSMAIN} },
1956         { "ws_1",               switchws,       {.id = 0} },
1957         { "ws_2",               switchws,       {.id = 1} },
1958         { "ws_3",               switchws,       {.id = 2} },
1959         { "ws_4",               switchws,       {.id = 3} },
1960         { "ws_5",               switchws,       {.id = 4} },
1961         { "ws_6",               switchws,       {.id = 5} },
1962         { "ws_7",               switchws,       {.id = 6} },
1963         { "ws_8",               switchws,       {.id = 7} },
1964         { "ws_9",               switchws,       {.id = 8} },
1965         { "ws_10",              switchws,       {.id = 9} },
1966         { "ws_next",            cyclews,        {.id = SWM_ARG_ID_CYCLEWS_UP} },
1967         { "ws_prev",            cyclews,        {.id = SWM_ARG_ID_CYCLEWS_DOWN} },
1968         { "screen_next",        cyclescr,       {.id = SWM_ARG_ID_CYCLESC_UP} },
1969         { "screen_prev",        cyclescr,       {.id = SWM_ARG_ID_CYCLESC_DOWN} },
1970         { "mvws_1",             send_to_ws,     {.id = 0} },
1971         { "mvws_2",             send_to_ws,     {.id = 1} },
1972         { "mvws_3",             send_to_ws,     {.id = 2} },
1973         { "mvws_4",             send_to_ws,     {.id = 3} },
1974         { "mvws_5",             send_to_ws,     {.id = 4} },
1975         { "mvws_6",             send_to_ws,     {.id = 5} },
1976         { "mvws_7",             send_to_ws,     {.id = 6} },
1977         { "mvws_8",             send_to_ws,     {.id = 7} },
1978         { "mvws_9",             send_to_ws,     {.id = 8} },
1979         { "mvws_10",            send_to_ws,     {.id = 9} },
1980         { "bar_toggle",         bar_toggle,     {0} },
1981         { "wind_kill",          wkill,          {.id = SWM_ARG_ID_KILLWINDOW} },
1982         { "wind_del",           wkill,          {.id = SWM_ARG_ID_DELETEWINDOW} },
1983         { "screenshot_all",     legacyfunc,     {0} },
1984         { "screenshot_wind",    legacyfunc,     {0} },
1985         { "float_toggle",       floating_toggle,{0} },
1986         { "version",            version,        {0} },
1987         { "spawn_lock",         legacyfunc,     {0} },
1988         { "spawn_initscr",      legacyfunc,     {0} },
1989         { "spawn_custom",       dummykeyfunc,   {0} },
1990         { "invalid key func",   NULL,           {0} },
1991 };
1992 struct key {
1993         unsigned int            mod;
1994         KeySym                  keysym;
1995         enum keyfuncid          funcid;
1996         char                    *spawn_name;
1997 };
1998 int                             keys_size = 0, keys_length = 0;
1999 struct key                      *keys = NULL;
2000
2001 /* mouse */
2002 enum { client_click, root_click };
2003 struct button {
2004         unsigned int            action;
2005         unsigned int            mask;
2006         unsigned int            button;
2007         void                    (*func)(struct ws_win *, union arg *);
2008         union arg               args;
2009 } buttons[] = {
2010           /* action     key             mouse button    func    args */
2011         { client_click, MODKEY,         Button3,        resize, {.id = SWM_ARG_ID_DONTCENTER} },
2012         { client_click, MODKEY | ShiftMask, Button3,    resize, {.id = SWM_ARG_ID_CENTER} },
2013         { client_click, MODKEY,         Button1,        move,   {0} },
2014 };
2015
2016 void
2017 update_modkey(unsigned int mod)
2018 {
2019         int                     i;
2020
2021         mod_key = mod;
2022         for (i = 0; i < keys_length; i++)
2023                 if (keys[i].mod & ShiftMask)
2024                         keys[i].mod = mod | ShiftMask;
2025                 else
2026                         keys[i].mod = mod;
2027
2028         for (i = 0; i < LENGTH(buttons); i++)
2029                 if (buttons[i].mask & ShiftMask)
2030                         buttons[i].mask = mod | ShiftMask;
2031                 else
2032                         buttons[i].mask = mod;
2033 }
2034
2035 /* spawn */
2036 struct spawn_prog {
2037         char                    *name;
2038         int                     argc;
2039         char                    **argv;
2040 };
2041
2042 int                             spawns_size = 0, spawns_length = 0;
2043 struct spawn_prog               *spawns = NULL;
2044
2045 void
2046 spawn_custom(struct swm_region *r, union arg *args, char *spawn_name)
2047 {
2048         union arg               a;
2049         struct spawn_prog       *prog = NULL;
2050         int                     i;
2051         char                    *ap, **real_args;
2052
2053         DNPRINTF(SWM_D_SPAWN, "spawn_custom %s\n", spawn_name);
2054
2055         /* find program */
2056         for (i = 0; i < spawns_length; i++) {
2057                 if (!strcasecmp(spawn_name, spawns[i].name))
2058                         prog = &spawns[i];
2059         }
2060         if (prog == NULL) {
2061                 fprintf(stderr, "spawn_custom: program %s not found\n",
2062                     spawn_name);
2063                 return;
2064         }
2065
2066         /* make room for expanded args */
2067         if ((real_args = calloc(prog->argc + 1, sizeof(char *))) == NULL)
2068                 err(1, "spawn_custom: calloc real_args");
2069
2070         /* expand spawn_args into real_args */
2071         for (i = 0; i < prog->argc; i++) {
2072                 ap = prog->argv[i];
2073                 DNPRINTF(SWM_D_SPAWN, "spawn_custom: raw arg = %s\n", ap);
2074                 if (!strcasecmp(ap, "$bar_border")) {
2075                         if ((real_args[i] =
2076                             strdup(r->s->c[SWM_S_COLOR_BAR_BORDER].name))
2077                             == NULL)
2078                                 err(1,  "spawn_custom border color");
2079                 } else if (!strcasecmp(ap, "$bar_color")) {
2080                         if ((real_args[i] =
2081                             strdup(r->s->c[SWM_S_COLOR_BAR].name))
2082                             == NULL)
2083                                 err(1, "spawn_custom bar color");
2084                 } else if (!strcasecmp(ap, "$bar_font")) {
2085                         if ((real_args[i] = strdup(bar_fonts[bar_fidx]))
2086                             == NULL)
2087                                 err(1, "spawn_custom bar fonts");
2088                 } else if (!strcasecmp(ap, "$bar_font_color")) {
2089                         if ((real_args[i] =
2090                             strdup(r->s->c[SWM_S_COLOR_BAR_FONT].name))
2091                             == NULL)
2092                                 err(1, "spawn_custom color font");
2093                 } else if (!strcasecmp(ap, "$color_focus")) {
2094                         if ((real_args[i] =
2095                             strdup(r->s->c[SWM_S_COLOR_FOCUS].name))
2096                             == NULL)
2097                                 err(1, "spawn_custom color focus");
2098                 } else if (!strcasecmp(ap, "$color_unfocus")) {
2099                         if ((real_args[i] =
2100                             strdup(r->s->c[SWM_S_COLOR_UNFOCUS].name))
2101                             == NULL)
2102                                 err(1, "spawn_custom color unfocus");
2103                 } else {
2104                         /* no match --> copy as is */
2105                         if ((real_args[i] = strdup(ap)) == NULL)
2106                                 err(1, "spawn_custom strdup(ap)");
2107                 }
2108                 DNPRINTF(SWM_D_SPAWN, "spawn_custom: cooked arg = %s\n",
2109                     real_args[i]);
2110         }
2111
2112 #ifdef SWM_DEBUG
2113         if ((swm_debug & SWM_D_SPAWN) != 0) {
2114                 fprintf(stderr, "spawn_custom: result = ");
2115                 for (i = 0; i < prog->argc; i++)
2116                         fprintf(stderr, "\"%s\" ", real_args[i]);
2117                 fprintf(stderr, "\n");
2118         }
2119 #endif
2120
2121         a.argv = real_args;
2122         spawn(r, &a);
2123         for (i = 0; i < prog->argc; i++)
2124                 free(real_args[i]);
2125         free(real_args);
2126 }
2127
2128 void
2129 setspawn(struct spawn_prog *prog)
2130 {
2131         int                     i, j;
2132
2133         if (prog == NULL || prog->name == NULL)
2134                 return;
2135
2136         /* find existing */
2137         for (i = 0; i < spawns_length; i++) {
2138                 if (!strcmp(spawns[i].name, prog->name)) {
2139                         /* found */
2140                         if (prog->argv == NULL) {
2141                                 /* delete */
2142                                 DNPRINTF(SWM_D_SPAWN,
2143                                     "setspawn: delete #%d %s\n",
2144                                     i, spawns[i].name);
2145                                 free(spawns[i].name);
2146                                 for (j = 0; j < spawns[i].argc; j++)
2147                                         free(spawns[i].argv[j]);
2148                                 free(spawns[i].argv);
2149                                 j = spawns_length - 1;
2150                                 if (i < j)
2151                                         spawns[i] = spawns[j];
2152                                 spawns_length--;
2153                                 free(prog->name);
2154                         } else {
2155                                 /* replace */
2156                                 DNPRINTF(SWM_D_SPAWN,
2157                                     "setspawn: replace #%d %s\n",
2158                                     i, spawns[i].name);
2159                                 free(spawns[i].name);
2160                                 for (j = 0; j < spawns[i].argc; j++)
2161                                         free(spawns[i].argv[j]);
2162                                 free(spawns[i].argv);
2163                                 spawns[i] = *prog;
2164                         }
2165                         /* found case handled */
2166                         free(prog);
2167                         return;
2168                 }
2169         }
2170
2171         if (prog->argv == NULL) {
2172                 fprintf(stderr,
2173                     "error: setspawn: cannot find program %s", prog->name);
2174                 free(prog);
2175                 return;
2176         }
2177
2178         /* not found: add */
2179         if (spawns_size == 0 || spawns == NULL) {
2180                 spawns_size = 4;
2181                 DNPRINTF(SWM_D_SPAWN, "setspawn: init list %d\n", spawns_size);
2182                 spawns = malloc((size_t)spawns_size *
2183                     sizeof(struct spawn_prog));
2184                 if (spawns == NULL) {
2185                         fprintf(stderr, "setspawn: malloc failed\n");
2186                         perror(" failed");
2187                         quit(NULL, NULL);
2188                 }
2189         } else if (spawns_length == spawns_size) {
2190                 spawns_size *= 2;
2191                 DNPRINTF(SWM_D_SPAWN, "setspawn: grow list %d\n", spawns_size);
2192                 spawns = realloc(spawns, (size_t)spawns_size *
2193                     sizeof(struct spawn_prog));
2194                 if (spawns == NULL) {
2195                         fprintf(stderr, "setspawn: realloc failed\n");
2196                         perror(" failed");
2197                         quit(NULL, NULL);
2198                 }
2199         }
2200
2201         if (spawns_length < spawns_size) {
2202                 DNPRINTF(SWM_D_SPAWN, "setspawn: add #%d %s\n",
2203                     spawns_length, prog->name);
2204                 i = spawns_length++;
2205                 spawns[i] = *prog;
2206         } else {
2207                 fprintf(stderr, "spawns array problem?\n");
2208                 if (spawns == NULL) {
2209                         fprintf(stderr, "spawns array is NULL!\n");
2210                         quit(NULL, NULL);
2211                 }
2212         }
2213         free(prog);
2214 }
2215
2216 int
2217 setconfspawn(char *selector, char *value, int flags)
2218 {
2219         struct spawn_prog       *prog;
2220         char                    *vp, *cp, *word;
2221
2222         DNPRINTF(SWM_D_SPAWN, "setconfspawn: [%s] [%s]\n", selector, value);
2223         if ((prog = calloc(1, sizeof *prog)) == NULL)
2224                 err(1, "setconfspawn: calloc prog");
2225         prog->name = strdup(selector);
2226         if (prog->name == NULL)
2227                 err(1, "setconfspawn prog->name");
2228         if ((cp = vp = strdup(value)) == NULL)
2229                 err(1, "setconfspawn: strdup(value) ");
2230         while ((word = strsep(&cp, " \t")) != NULL) {
2231                 DNPRINTF(SWM_D_SPAWN, "setconfspawn: arg [%s]\n", word);
2232                 if (cp)
2233                         cp += (long)strspn(cp, " \t");
2234                 if (strlen(word) > 0) {
2235                         prog->argc++;
2236                         prog->argv = realloc(prog->argv,
2237                             prog->argc * sizeof(char *));
2238                         if ((prog->argv[prog->argc - 1] = strdup(word)) == NULL)
2239                                 err(1, "setconfspawn: strdup");
2240                 }
2241         }
2242         free(vp);
2243
2244         setspawn(prog);
2245
2246         DNPRINTF(SWM_D_SPAWN, "setconfspawn: done\n");
2247         return (0);
2248 }
2249
2250 void
2251 setup_spawn(void)
2252 {
2253         setconfspawn("term",            "xterm",                0);
2254         setconfspawn("screenshot_all",  "screenshot.sh full",   0);
2255         setconfspawn("screenshot_wind", "screenshot.sh window", 0);
2256         setconfspawn("lock",            "xlock",                0);
2257         setconfspawn("initscr",         "initscreen.sh",        0);
2258         setconfspawn("menu",            "dmenu_run"
2259                                         " -fn $bar_font"
2260                                         " -nb $bar_color"
2261                                         " -nf $bar_font_color"
2262                                         " -sb $bar_border"
2263                                         " -sf $bar_color",      0);
2264 }
2265
2266 /* key bindings */
2267 #define SWM_MODNAME_SIZE        32
2268 #define SWM_KEY_WS              "\n+ \t"
2269 int
2270 parsekeys(char *keystr, unsigned int currmod, unsigned int *mod, KeySym *ks)
2271 {
2272         char                    *cp, *name;
2273         KeySym                  uks;
2274         DNPRINTF(SWM_D_KEY, "parsekeys: enter [%s]\n", keystr);
2275         if (mod == NULL || ks == NULL) {
2276                 DNPRINTF(SWM_D_KEY, "parsekeys: no mod or key vars\n");
2277                 return (1);
2278         }
2279         if (keystr == NULL || strlen(keystr) == 0) {
2280                 DNPRINTF(SWM_D_KEY, "parsekeys: no keystr\n");
2281                 return (1);
2282         }
2283         cp = keystr;
2284         *ks = NoSymbol;
2285         *mod = 0;
2286         while ((name = strsep(&cp, SWM_KEY_WS)) != NULL) {
2287                 DNPRINTF(SWM_D_KEY, "parsekeys: key [%s]\n", name);
2288                 if (cp)
2289                         cp += (long)strspn(cp, SWM_KEY_WS);
2290                 if (strncasecmp(name, "MOD", SWM_MODNAME_SIZE) == 0)
2291                         *mod |= currmod;
2292                 else if (!strncasecmp(name, "Mod1", SWM_MODNAME_SIZE))
2293                         *mod |= Mod1Mask;
2294                 else if (!strncasecmp(name, "Mod2", SWM_MODNAME_SIZE))
2295                         *mod += Mod2Mask;
2296                 else if (!strncmp(name, "Mod3", SWM_MODNAME_SIZE))
2297                         *mod |= Mod3Mask;
2298                 else if (!strncmp(name, "Mod4", SWM_MODNAME_SIZE))
2299                         *mod |= Mod4Mask;
2300                 else if (strncasecmp(name, "SHIFT", SWM_MODNAME_SIZE) == 0)
2301                         *mod |= ShiftMask;
2302                 else if (strncasecmp(name, "CONTROL", SWM_MODNAME_SIZE) == 0)
2303                         *mod |= ControlMask;
2304                 else {
2305                         *ks = XStringToKeysym(name);
2306                         XConvertCase(*ks, ks, &uks);
2307                         if (ks == NoSymbol) {
2308                                 DNPRINTF(SWM_D_KEY,
2309                                     "parsekeys: invalid key %s\n",
2310                                     name);
2311                                 return (1);
2312                         }
2313                 }
2314         }
2315         DNPRINTF(SWM_D_KEY, "parsekeys: leave ok\n");
2316         return (0);
2317 }
2318 char *
2319 strdupsafe(char *str)
2320 {
2321         if (str == NULL)
2322                 return (NULL);
2323         else
2324                 return (strdup(str));
2325 }
2326 void
2327 setkeybinding(unsigned int mod, KeySym ks, enum keyfuncid kfid, char *spawn_name)
2328 {
2329         int                     i, j;
2330         DNPRINTF(SWM_D_KEY, "setkeybinding: enter %s [%s]\n",
2331             keyfuncs[kfid].name, spawn_name);
2332         /* find existing */
2333         for (i = 0; i < keys_length; i++) {
2334                 if (keys[i].mod == mod && keys[i].keysym == ks) {
2335                         if (kfid == kf_invalid) {
2336                                 /* found: delete */
2337                                 DNPRINTF(SWM_D_KEY,
2338                                     "setkeybinding: delete #%d %s\n",
2339                                     i, keyfuncs[keys[i].funcid].name);
2340                                 free(keys[i].spawn_name);
2341                                 j = keys_length - 1;
2342                                 if (i < j)
2343                                         keys[i] = keys[j];
2344                                 keys_length--;
2345                                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2346                                 return;
2347                         } else {
2348                                 /* found: replace */
2349                                 DNPRINTF(SWM_D_KEY,
2350                                     "setkeybinding: replace #%d %s %s\n",
2351                                     i, keyfuncs[keys[i].funcid].name,
2352                                     spawn_name);
2353                                 free(keys[i].spawn_name);
2354                                 keys[i].mod = mod;
2355                                 keys[i].keysym = ks;
2356                                 keys[i].funcid = kfid;
2357                                 keys[i].spawn_name = strdupsafe(spawn_name);
2358                                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2359                                 return;
2360                         }
2361                 }
2362         }
2363         if (kfid == kf_invalid) {
2364                 fprintf(stderr,
2365                     "error: setkeybinding: cannot find mod/key combination");
2366                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2367                 return;
2368         }
2369         /* not found: add */
2370         if (keys_size == 0 || keys == NULL) {
2371                 keys_size = 4;
2372                 DNPRINTF(SWM_D_KEY, "setkeybinding: init list %d\n", keys_size);
2373                 keys = malloc((size_t)keys_size * sizeof(struct key));
2374                 if (!keys) {
2375                         fprintf(stderr, "malloc failed\n");
2376                         perror(" failed");
2377                         quit(NULL, NULL);
2378                 }
2379         } else if (keys_length == keys_size) {
2380                 keys_size *= 2;
2381                 DNPRINTF(SWM_D_KEY, "setkeybinding: grow list %d\n", keys_size);
2382                 keys = realloc(keys, (size_t)keys_size * sizeof(struct key));
2383                 if (!keys) {
2384                         fprintf(stderr, "realloc failed\n");
2385                         perror(" failed");
2386                         quit(NULL, NULL);
2387                 }
2388         }
2389         if (keys_length < keys_size) {
2390                 j = keys_length++;
2391                 DNPRINTF(SWM_D_KEY, "setkeybinding: add #%d %s %s\n",
2392                     j, keyfuncs[kfid].name, spawn_name);
2393                 keys[j].mod = mod;
2394                 keys[j].keysym = ks;
2395                 keys[j].funcid = kfid;
2396                 keys[j].spawn_name = strdupsafe(spawn_name);
2397         } else {
2398                 fprintf(stderr, "keys array problem?\n");
2399                 if (!keys) {
2400                         fprintf(stderr, "keys array problem\n");
2401                         quit(NULL, NULL);
2402                 }
2403         }
2404         DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2405 }
2406 int
2407 setconfbinding(char *selector, char *value, int flags)
2408 {
2409         enum keyfuncid          kfid;
2410         unsigned int            mod;
2411         KeySym                  ks;
2412         int                     i;
2413         DNPRINTF(SWM_D_KEY, "setconfbinding: enter\n");
2414         if (selector == NULL) {
2415                 DNPRINTF(SWM_D_KEY, "setconfbinding: unbind %s\n", value);
2416                 if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2417                         kfid = kf_invalid;
2418                         setkeybinding(mod, ks, kfid, NULL);
2419                         return (0);
2420                 } else
2421                         return (1);
2422         }
2423         /* search by key function name */
2424         for (kfid = 0; kfid < kf_invalid; (kfid)++) {
2425                 if (strncasecmp(selector, keyfuncs[kfid].name,
2426                     SWM_FUNCNAME_LEN) == 0) {
2427                         DNPRINTF(SWM_D_KEY, "setconfbinding: %s: match\n",
2428                             selector);
2429                         if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2430                                 setkeybinding(mod, ks, kfid, NULL);
2431                                 return (0);
2432                         } else
2433                                 return (1);
2434                 }
2435         }
2436         /* search by custom spawn name */
2437         for (i = 0; i < spawns_length; i++) {
2438                 if (strcasecmp(selector, spawns[i].name) == 0) {
2439                         DNPRINTF(SWM_D_KEY, "setconfbinding: %s: match\n",
2440                             selector);
2441                         if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2442                                 setkeybinding(mod, ks, kf_spawn_custom,
2443                                     spawns[i].name);
2444                                 return (0);
2445                         } else
2446                                 return (1);
2447                 }
2448         }
2449         DNPRINTF(SWM_D_KEY, "setconfbinding: no match\n");
2450         return (1);
2451 }
2452 void
2453 setup_keys(void)
2454 {
2455         setkeybinding(MODKEY,           XK_space,       kf_cycle_layout,NULL);
2456         setkeybinding(MODKEY|ShiftMask, XK_space,       kf_stack_reset, NULL);
2457         setkeybinding(MODKEY,           XK_h,           kf_master_shrink,NULL);
2458         setkeybinding(MODKEY,           XK_l,           kf_master_grow, NULL);
2459         setkeybinding(MODKEY,           XK_comma,       kf_master_add,  NULL);
2460         setkeybinding(MODKEY,           XK_period,      kf_master_del,  NULL);
2461         setkeybinding(MODKEY|ShiftMask, XK_comma,       kf_stack_inc,   NULL);
2462         setkeybinding(MODKEY|ShiftMask, XK_period,      kf_stack_dec,   NULL);
2463         setkeybinding(MODKEY,           XK_Return,      kf_swap_main,   NULL);
2464         setkeybinding(MODKEY,           XK_j,           kf_focus_next,  NULL);
2465         setkeybinding(MODKEY,           XK_k,           kf_focus_prev,  NULL);
2466         setkeybinding(MODKEY|ShiftMask, XK_j,           kf_swap_next,   NULL);
2467         setkeybinding(MODKEY|ShiftMask, XK_k,           kf_swap_prev,   NULL);
2468         setkeybinding(MODKEY|ShiftMask, XK_Return,      kf_spawn_term,  NULL);
2469         setkeybinding(MODKEY,           XK_p,           kf_spawn_custom,        "menu");
2470         setkeybinding(MODKEY|ShiftMask, XK_q,           kf_quit,        NULL);
2471         setkeybinding(MODKEY,           XK_q,           kf_restart,     NULL);
2472         setkeybinding(MODKEY,           XK_m,           kf_focus_main,  NULL);
2473         setkeybinding(MODKEY,           XK_1,           kf_ws_1,        NULL);
2474         setkeybinding(MODKEY,           XK_2,           kf_ws_2,        NULL);
2475         setkeybinding(MODKEY,           XK_3,           kf_ws_3,        NULL);
2476         setkeybinding(MODKEY,           XK_4,           kf_ws_4,        NULL);
2477         setkeybinding(MODKEY,           XK_5,           kf_ws_5,        NULL);
2478         setkeybinding(MODKEY,           XK_6,           kf_ws_6,        NULL);
2479         setkeybinding(MODKEY,           XK_7,           kf_ws_7,        NULL);
2480         setkeybinding(MODKEY,           XK_8,           kf_ws_8,        NULL);
2481         setkeybinding(MODKEY,           XK_9,           kf_ws_9,        NULL);
2482         setkeybinding(MODKEY,           XK_0,           kf_ws_10,       NULL);
2483         setkeybinding(MODKEY,           XK_Right,       kf_ws_next,     NULL);
2484         setkeybinding(MODKEY,           XK_Left,        kf_ws_prev,     NULL);
2485         setkeybinding(MODKEY|ShiftMask, XK_Right,       kf_screen_next, NULL);
2486         setkeybinding(MODKEY|ShiftMask, XK_Left,        kf_screen_prev, NULL);
2487         setkeybinding(MODKEY|ShiftMask, XK_1,           kf_mvws_1,      NULL);
2488         setkeybinding(MODKEY|ShiftMask, XK_2,           kf_mvws_2,      NULL);
2489         setkeybinding(MODKEY|ShiftMask, XK_3,           kf_mvws_3,      NULL);
2490         setkeybinding(MODKEY|ShiftMask, XK_4,           kf_mvws_4,      NULL);
2491         setkeybinding(MODKEY|ShiftMask, XK_5,           kf_mvws_5,      NULL);
2492         setkeybinding(MODKEY|ShiftMask, XK_6,           kf_mvws_6,      NULL);
2493         setkeybinding(MODKEY|ShiftMask, XK_7,           kf_mvws_7,      NULL);
2494         setkeybinding(MODKEY|ShiftMask, XK_8,           kf_mvws_8,      NULL);
2495         setkeybinding(MODKEY|ShiftMask, XK_9,           kf_mvws_9,      NULL);
2496         setkeybinding(MODKEY|ShiftMask, XK_0,           kf_mvws_10,     NULL);
2497         setkeybinding(MODKEY,           XK_b,           kf_bar_toggle,  NULL);
2498         setkeybinding(MODKEY,           XK_Tab,         kf_focus_next,  NULL);
2499         setkeybinding(MODKEY|ShiftMask, XK_Tab,         kf_focus_prev,  NULL);
2500         setkeybinding(MODKEY|ShiftMask, XK_x,           kf_wind_kill,   NULL);
2501         setkeybinding(MODKEY,           XK_x,           kf_wind_del,    NULL);
2502         setkeybinding(MODKEY,           XK_s,           kf_spawn_custom,        "screenshot_all");
2503         setkeybinding(MODKEY|ShiftMask, XK_s,           kf_spawn_custom,        "screenshot_wind");
2504         setkeybinding(MODKEY,           XK_t,           kf_float_toggle,NULL);
2505         setkeybinding(MODKEY|ShiftMask, XK_v,           kf_version,     NULL);
2506         setkeybinding(MODKEY|ShiftMask, XK_Delete,      kf_spawn_custom,        "lock");
2507         setkeybinding(MODKEY|ShiftMask, XK_i,           kf_spawn_custom,        "initscr");
2508 }
2509 void
2510 updatenumlockmask(void)
2511 {
2512         unsigned int            i, j;
2513         XModifierKeymap         *modmap;
2514
2515         DNPRINTF(SWM_D_MISC, "updatenumlockmask\n");
2516         numlockmask = 0;
2517         modmap = XGetModifierMapping(display);
2518         for (i = 0; i < 8; i++)
2519                 for (j = 0; j < modmap->max_keypermod; j++)
2520                         if (modmap->modifiermap[i * modmap->max_keypermod + j]
2521                           == XKeysymToKeycode(display, XK_Num_Lock))
2522                                 numlockmask = (1 << i);
2523
2524         XFreeModifiermap(modmap);
2525 }
2526
2527 void
2528 grabkeys(void)
2529 {
2530         unsigned int            i, j, k;
2531         KeyCode                 code;
2532         unsigned int            modifiers[] =
2533             { 0, LockMask, numlockmask, numlockmask | LockMask };
2534
2535         DNPRINTF(SWM_D_MISC, "grabkeys\n");
2536         updatenumlockmask();
2537
2538         for (k = 0; k < ScreenCount(display); k++) {
2539                 if (TAILQ_EMPTY(&screens[k].rl))
2540                         continue;
2541                 XUngrabKey(display, AnyKey, AnyModifier, screens[k].root);
2542                 for (i = 0; i < keys_length; i++) {
2543                         if ((code = XKeysymToKeycode(display, keys[i].keysym)))
2544                                 for (j = 0; j < LENGTH(modifiers); j++)
2545                                         XGrabKey(display, code,
2546                                             keys[i].mod | modifiers[j],
2547                                             screens[k].root, True,
2548                                             GrabModeAsync, GrabModeAsync);
2549                 }
2550         }
2551 }
2552
2553 void
2554 grabbuttons(struct ws_win *win, int focused)
2555 {
2556         unsigned int            i, j;
2557         unsigned int            modifiers[] =
2558             { 0, LockMask, numlockmask, numlockmask|LockMask };
2559
2560         updatenumlockmask();
2561         XUngrabButton(display, AnyButton, AnyModifier, win->id);
2562         if(focused) {
2563                 for (i = 0; i < LENGTH(buttons); i++)
2564                         if (buttons[i].action == client_click)
2565                                 for (j = 0; j < LENGTH(modifiers); j++)
2566                                         XGrabButton(display, buttons[i].button,
2567                                             buttons[i].mask | modifiers[j],
2568                                             win->id, False, BUTTONMASK,
2569                                             GrabModeAsync, GrabModeSync, None,
2570                                             None);
2571         } else
2572                 XGrabButton(display, AnyButton, AnyModifier, win->id, False,
2573                     BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
2574 }
2575
2576 void
2577 expose(XEvent *e)
2578 {
2579         DNPRINTF(SWM_D_EVENT, "expose: window: %lu\n", e->xexpose.window);
2580 }
2581
2582 void
2583 keypress(XEvent *e)
2584 {
2585         unsigned int            i;
2586         KeySym                  keysym;
2587         XKeyEvent               *ev = &e->xkey;
2588
2589         DNPRINTF(SWM_D_EVENT, "keypress: window: %lu\n", ev->window);
2590
2591         keysym = XKeycodeToKeysym(display, (KeyCode)ev->keycode, 0);
2592         for (i = 0; i < keys_length; i++)
2593                 if (keysym == keys[i].keysym
2594                    && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
2595                    && keyfuncs[keys[i].funcid].func) {
2596                         if (keys[i].funcid == kf_spawn_custom)
2597                                 spawn_custom(
2598                                     root_to_region(ev->root),
2599                                     &(keyfuncs[keys[i].funcid].args),
2600                                     keys[i].spawn_name
2601                                     );
2602                         else
2603                                 keyfuncs[keys[i].funcid].func(
2604                                     root_to_region(ev->root),
2605                                     &(keyfuncs[keys[i].funcid].args)
2606                                     );
2607                 }
2608 }
2609
2610 void
2611 buttonpress(XEvent *e)
2612 {
2613         XButtonPressedEvent     *ev = &e->xbutton;
2614
2615         struct ws_win           *win;
2616         int                     i, action;
2617
2618         DNPRINTF(SWM_D_EVENT, "buttonpress: window: %lu\n", ev->window);
2619
2620         action = root_click;
2621         if ((win = find_window(ev->window)) == NULL)
2622                 return;
2623         else {
2624                 focus_win(win);
2625                 action = client_click;
2626         }
2627
2628         for (i = 0; i < LENGTH(buttons); i++)
2629                 if (action == buttons[i].action && buttons[i].func &&
2630                     buttons[i].button == ev->button &&
2631                     CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
2632                         buttons[i].func(win, &buttons[i].args);
2633 }
2634
2635 void
2636 set_win_state(struct ws_win *win, long state)
2637 {
2638         long                    data[] = {state, None};
2639
2640         DNPRINTF(SWM_D_EVENT, "set_win_state: window: %lu\n", win->id);
2641
2642         XChangeProperty(display, win->id, astate, astate, 32, PropModeReplace,
2643             (unsigned char *)data, 2);
2644 }
2645
2646 const char *quirkname[] = {
2647         "NONE",         /* config string for "no value" */
2648         "FLOAT",
2649         "TRANSSZ",
2650         "ANYWHERE",
2651         "XTERM_FONTADJ",
2652         "FULLSCREEN",
2653 };
2654
2655 /* SWM_Q_WS: retain '|' for back compat for now (2009-08-11) */
2656 #define SWM_Q_WS                "\n|+ \t"
2657 int
2658 parsequirks(char *qstr, unsigned long *quirk)
2659 {
2660         char                    *cp, *name;
2661         int                     i;
2662         if (quirk == NULL)
2663                 return (1);
2664         cp = qstr;
2665         *quirk = 0;
2666         while ((name = strsep(&cp, SWM_Q_WS)) != NULL) {
2667                 if (cp)
2668                         cp += (long)strspn(cp, SWM_Q_WS);
2669                 for (i = 0; i < LENGTH(quirkname); i++) {
2670                         if (!strncasecmp(name, quirkname[i], SWM_QUIRK_LEN)) {
2671                                 DNPRINTF(SWM_D_QUIRK, "parsequirks: %s\n", name);
2672                                 if (i == 0) {
2673                                         *quirk = 0;
2674                                         return (0);
2675                                 }
2676                                 *quirk |= 1 << (i-1);
2677                                 break;
2678                         }
2679                 }
2680                 if (i >= LENGTH(quirkname)) {
2681                         DNPRINTF(SWM_D_QUIRK,
2682                             "parsequirks: invalid quirk [%s]\n", name);
2683                         return (1);
2684                 }
2685         }
2686         return (0);
2687 }
2688 void
2689 setquirk(const char *class, const char *name, const int quirk)
2690 {
2691         int                     i, j;
2692         /* find existing */
2693         for (i = 0; i < quirks_length; i++) {
2694                 if (!strcmp(quirks[i].class, class) &&
2695                     !strcmp(quirks[i].name, name)) {
2696                         if (!quirk) {
2697                                 /* found: delete */
2698                                 DNPRINTF(SWM_D_QUIRK,
2699                                     "setquirk: delete #%d %s:%s\n",
2700                                     i, quirks[i].class, quirks[i].name);
2701                                 free(quirks[i].class);
2702                                 free(quirks[i].name);
2703                                 j = quirks_length - 1;
2704                                 if (i < j)
2705                                         quirks[i] = quirks[j];
2706                                 quirks_length--;
2707                                 return;
2708                         } else {
2709                                 /* found: replace */
2710                                 DNPRINTF(SWM_D_QUIRK,
2711                                     "setquirk: replace #%d %s:%s\n",
2712                                     i, quirks[i].class, quirks[i].name);
2713                                 free(quirks[i].class);
2714                                 free(quirks[i].name);
2715                                 quirks[i].class = strdup(class);
2716                                 quirks[i].name = strdup(name);
2717                                 quirks[i].quirk = quirk;
2718                                 return;
2719                         }
2720                 }
2721         }
2722         if (!quirk) {
2723                 fprintf(stderr,
2724                     "error: setquirk: cannot find class/name combination");
2725                 return;
2726         }
2727         /* not found: add */
2728         if (quirks_size == 0 || quirks == NULL) {
2729                 quirks_size = 4;
2730                 DNPRINTF(SWM_D_QUIRK, "setquirk: init list %d\n", quirks_size);
2731                 quirks = malloc((size_t)quirks_size * sizeof(struct quirk));
2732                 if (!quirks) {
2733                         fprintf(stderr, "setquirk: malloc failed\n");
2734                         perror(" failed");
2735                         quit(NULL, NULL);
2736                 }
2737         } else if (quirks_length == quirks_size) {
2738                 quirks_size *= 2;
2739                 DNPRINTF(SWM_D_QUIRK, "setquirk: grow list %d\n", quirks_size);
2740                 quirks = realloc(quirks, (size_t)quirks_size * sizeof(struct quirk));
2741                 if (!quirks) {
2742                         fprintf(stderr, "setquirk: realloc failed\n");
2743                         perror(" failed");
2744                         quit(NULL, NULL);
2745                 }
2746         }
2747         if (quirks_length < quirks_size) {
2748                 DNPRINTF(SWM_D_QUIRK, "setquirk: add %d\n", quirks_length);
2749                 j = quirks_length++;
2750                 quirks[j].class = strdup(class);
2751                 quirks[j].name = strdup(name);
2752                 quirks[j].quirk = quirk;
2753         } else {
2754                 fprintf(stderr, "quirks array problem?\n");
2755                 if (!quirks) {
2756                         fprintf(stderr, "quirks array problem!\n");
2757                         quit(NULL, NULL);
2758                 }
2759         }
2760 }
2761 int
2762 setconfquirk(char *selector, char *value, int flags)
2763 {
2764         char                    *cp, *class, *name;
2765         int                     retval;
2766         unsigned long           quirks;
2767         if (selector == NULL)
2768                 return (0);
2769         if ((cp = strchr(selector, ':')) == NULL)
2770                 return (0);
2771         *cp = '\0';
2772         class = selector;
2773         name = cp + 1;
2774         if ((retval = parsequirks(value, &quirks)) == 0)
2775                 setquirk(class, name, quirks);
2776         return (retval);
2777 }
2778
2779 void
2780 setup_quirks(void)
2781 {
2782         setquirk("MPlayer",             "xv",           SWM_Q_FLOAT | SWM_Q_FULLSCREEN);
2783         setquirk("OpenOffice.org 2.4",  "VCLSalFrame",  SWM_Q_FLOAT);
2784         setquirk("OpenOffice.org 3.0",  "VCLSalFrame",  SWM_Q_FLOAT);
2785         setquirk("Firefox-bin",         "firefox-bin",  SWM_Q_TRANSSZ);
2786         setquirk("Firefox",             "Dialog",       SWM_Q_FLOAT);
2787         setquirk("Gimp",                "gimp",         SWM_Q_FLOAT | SWM_Q_ANYWHERE);
2788         setquirk("XTerm",               "xterm",        SWM_Q_XTERM_FONTADJ);
2789         setquirk("xine",                "Xine Window",  SWM_Q_FLOAT | SWM_Q_ANYWHERE);
2790         setquirk("Xitk",                "Xitk Combo",   SWM_Q_FLOAT | SWM_Q_ANYWHERE);
2791         setquirk("xine",                "xine Panel",   SWM_Q_FLOAT | SWM_Q_ANYWHERE);
2792         setquirk("Xitk",                "Xine Window",  SWM_Q_FLOAT | SWM_Q_ANYWHERE);
2793         setquirk("xine",                "xine Video Fullscreen Window", SWM_Q_FULLSCREEN | SWM_Q_FLOAT);
2794         setquirk("pcb",                 "pcb",          SWM_Q_FLOAT);
2795 }
2796
2797 /* conf file stuff */
2798 #define SWM_CONF_FILE   "scrotwm.conf"
2799
2800 enum    { SWM_S_BAR_DELAY, SWM_S_BAR_ENABLED, SWM_S_CLOCK_ENABLED,
2801           SWM_S_CYCLE_EMPTY, SWM_S_CYCLE_VISIBLE, SWM_S_SS_ENABLED,
2802           SWM_S_TERM_WIDTH, SWM_S_TITLE_CLASS_ENABLED, SWM_S_TITLE_NAME_ENABLED,
2803           SWM_S_BAR_FONT, SWM_S_BAR_ACTION, SWM_S_SPAWN_TERM, SWM_S_SS_APP,
2804           SWM_S_DIALOG_RATIO };
2805
2806 int
2807 setconfvalue(char *selector, char *value, int flags)
2808 {
2809         switch (flags) {
2810         case SWM_S_BAR_DELAY:
2811                 bar_delay = atoi(value);
2812                 break;
2813         case SWM_S_BAR_ENABLED:
2814                 bar_enabled = atoi(value);
2815                 break;
2816         case SWM_S_CLOCK_ENABLED:
2817                 clock_enabled = atoi(value);
2818                 break;
2819         case SWM_S_CYCLE_EMPTY:
2820                 cycle_empty = atoi(value);
2821                 break;
2822         case SWM_S_CYCLE_VISIBLE:
2823                 cycle_visible = atoi(value);
2824                 break;
2825         case SWM_S_SS_ENABLED:
2826                 ss_enabled = atoi(value);
2827                 break;
2828         case SWM_S_TERM_WIDTH:
2829                 term_width = atoi(value);
2830                 break;
2831         case SWM_S_TITLE_CLASS_ENABLED:
2832                 title_class_enabled = atoi(value);
2833                 break;
2834         case SWM_S_TITLE_NAME_ENABLED:
2835                 title_name_enabled = atoi(value);
2836                 break;
2837         case SWM_S_BAR_FONT:
2838                 free(bar_fonts[0]);
2839                 if ((bar_fonts[0] = strdup(value)) == NULL)
2840                         err(1, "setconfvalue: bar_font");
2841                 break;
2842         case SWM_S_BAR_ACTION:
2843                 free(bar_argv[0]);
2844                 if ((bar_argv[0] = strdup(value)) == NULL)
2845                         err(1, "setconfvalue: bar_action");
2846                 break;
2847         case SWM_S_SPAWN_TERM:
2848                 free(spawn_term[0]);
2849                 if ((spawn_term[0] = strdup(value)) == NULL)
2850                         err(1, "setconfvalue: spawn_term");
2851                 break;
2852         case SWM_S_SS_APP:
2853                 break;
2854         case SWM_S_DIALOG_RATIO:
2855                 dialog_ratio = atof(value);
2856                 if (dialog_ratio > 1.0 || dialog_ratio <= .3)
2857                         dialog_ratio = .6;
2858                 break;
2859         default:
2860                 return (1);
2861         }
2862         return (0);
2863 }
2864
2865 int
2866 setconfmodkey(char *selector, char *value, int flags)
2867 {
2868         if (!strncasecmp(value, "Mod1", strlen("Mod1")))
2869                 update_modkey(Mod1Mask);
2870         else if (!strncasecmp(value, "Mod2", strlen("Mod2")))
2871                 update_modkey(Mod2Mask);
2872         else if (!strncasecmp(value, "Mod3", strlen("Mod3")))
2873                 update_modkey(Mod3Mask);
2874         else if (!strncasecmp(value, "Mod4", strlen("Mod4")))
2875                 update_modkey(Mod4Mask);
2876         else
2877                 return (1);
2878         return (0);
2879 }
2880
2881 int
2882 setconfcolor(char *selector, char *value, int flags)
2883 {
2884         setscreencolor(value, ((selector == NULL)?-1:atoi(selector)), flags);
2885         return (0);
2886 }
2887
2888 int
2889 setconfregion(char *selector, char *value, int flags)
2890 {
2891         custom_region(value);
2892         return (0);
2893 }
2894
2895 /* config options */
2896 struct config_option {
2897         char                    *optname;
2898         int (*func)(char*, char*, int);
2899         int funcflags;
2900 };
2901 struct config_option configopt[] = {
2902         { "bar_enabled",                setconfvalue,   SWM_S_BAR_ENABLED },
2903         { "bar_border",                 setconfcolor,   SWM_S_COLOR_BAR_BORDER },
2904         { "bar_color",                  setconfcolor,   SWM_S_COLOR_BAR },
2905         { "bar_font_color",             setconfcolor,   SWM_S_COLOR_BAR_FONT },
2906         { "bar_font",                   setconfvalue,   SWM_S_BAR_FONT },
2907         { "bar_action",                 setconfvalue,   SWM_S_BAR_ACTION },
2908         { "bar_delay",                  setconfvalue,   SWM_S_BAR_DELAY },
2909         { "bind",                       setconfbinding, 0 },
2910         { "clock_enabled",              setconfvalue,   SWM_S_CLOCK_ENABLED },
2911         { "color_focus",                setconfcolor,   SWM_S_COLOR_FOCUS },
2912         { "color_unfocus",              setconfcolor,   SWM_S_COLOR_UNFOCUS },
2913         { "cycle_empty",                setconfvalue,   SWM_S_CYCLE_EMPTY },
2914         { "cycle_visible",              setconfvalue,   SWM_S_CYCLE_VISIBLE },
2915         { "dialog_ratio",               setconfvalue,   SWM_S_DIALOG_RATIO },
2916         { "modkey",                     setconfmodkey,  0 },
2917         { "program",                    setconfspawn,   0 },
2918         { "quirk",                      setconfquirk,   0 },
2919         { "region",                     setconfregion,  0 },
2920         { "spawn_term",                 setconfvalue,   SWM_S_SPAWN_TERM },
2921         { "screenshot_enabled",         setconfvalue,   SWM_S_SS_ENABLED },
2922         { "screenshot_app",             setconfvalue,   SWM_S_SS_APP },
2923         { "term_width",                 setconfvalue,   SWM_S_TERM_WIDTH },
2924         { "title_class_enabled",        setconfvalue,   SWM_S_TITLE_CLASS_ENABLED },
2925         { "title_name_enabled",         setconfvalue,   SWM_S_TITLE_NAME_ENABLED }
2926 };
2927
2928
2929 int
2930 conf_load(char *filename)
2931 {
2932         FILE                    *config;
2933         char                    *line, *cp, *optsub, *optval;
2934         size_t                  linelen, lineno = 0;
2935         int                     wordlen, i, optind;
2936         struct config_option    *opt;
2937         DPRINTF("conf_load begin\n");
2938         if (filename == NULL) {
2939                 fprintf(stderr, "conf_load: no filename\n");
2940                 return (1);
2941         }
2942         if ((config = fopen(filename, "r")) == NULL) {
2943                 warn("conf_load: fopen");
2944                 return (1);
2945         }
2946         while (!feof(config)) {
2947                 if ((line = fparseln(config, &linelen, &lineno, NULL, 0))
2948                     == NULL) {
2949                         if (ferror(config))
2950                                 err(1, "%s", filename);
2951                         else
2952                                 continue;
2953                 }
2954                 cp = line;
2955                 cp += strspn(cp, " \t\n"); /* eat whitespace */
2956                 if (cp[0] == '\0') {
2957                         /* empty line */
2958                         free(line);
2959                         continue;
2960                 }
2961                 /* get config option */
2962                 wordlen = strcspn(cp, "=[ \t\n");
2963                 if (wordlen == 0) {
2964                         warnx("%s: line %zd: no option found",
2965                             filename, lineno);
2966                         return (1);
2967                 }
2968                 optind = -1;
2969                 for (i = 0; i < LENGTH(configopt); i++) {
2970                         opt = &configopt[i];
2971                         if (!strncasecmp(cp, opt->optname, wordlen) &&
2972                             strlen(opt->optname) == wordlen) {
2973                                 optind = i;
2974                                 break;
2975                         }
2976                 }
2977                 if (optind == -1) {
2978                         warnx("%s: line %zd: unknown option %.*s",
2979                             filename, lineno, wordlen, cp);
2980                         return (1);
2981                 }
2982                 cp += wordlen;
2983                 cp += strspn(cp, " \t\n"); /* eat whitespace */
2984                 /* get [selector] if any */
2985                 optsub = NULL;
2986                 if (*cp == '[') {
2987                         cp++;
2988                         wordlen = strcspn(cp, "]");
2989                         if (*cp != ']') {
2990                                 if (wordlen == 0) {
2991                                         warnx("%s: line %zd: syntax error",
2992                                             filename, lineno);
2993                                         return (1);
2994                                 }
2995                                 asprintf(&optsub, "%.*s", wordlen, cp);
2996                         }
2997                         cp += wordlen;
2998                         cp += strspn(cp, "] \t\n"); /* eat trailing */
2999                 }
3000                 cp += strspn(cp, "= \t\n"); /* eat trailing */
3001                 /* get RHS value */
3002                 optval = strdup(cp);
3003                 /* call function to deal with it all */
3004                 if (configopt[optind].func(optsub, optval,
3005                     configopt[optind].funcflags) != 0) {
3006                         fprintf(stderr, "%s line %zd: %s\n",
3007                             filename, lineno, line);
3008                         errx(1, "%s: line %zd: invalid data for %s",
3009                             filename, lineno, configopt[optind].optname);
3010                 }
3011                 free(optval);
3012                 free(optsub);
3013                 free(line);
3014         }
3015         fclose(config);
3016         DPRINTF("conf_load end\n");
3017         return (0);
3018 }
3019
3020 struct ws_win *
3021 manage_window(Window id)
3022 {
3023         Window                  trans;
3024         struct workspace        *ws;
3025         struct ws_win           *win;
3026         int                     format, i, ws_idx, n;
3027         unsigned long           nitems, bytes;
3028         Atom                    ws_idx_atom = 0, type;
3029         Atom                    *prot = NULL, *pp;
3030         unsigned char           ws_idx_str[SWM_PROPLEN], *prop = NULL;
3031         struct swm_region       *r;
3032         long                    mask;
3033         const char              *errstr;
3034         XWindowChanges          wc;
3035
3036         if ((win = find_window(id)) != NULL)
3037                         return (win);   /* already being managed */
3038
3039         if ((win = calloc(1, sizeof(struct ws_win))) == NULL)
3040                 errx(1, "calloc: failed to allocate memory for new window");
3041
3042         /* Get all the window data in one shot */
3043         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
3044         if (ws_idx_atom)
3045                 XGetWindowProperty(display, id, ws_idx_atom, 0, SWM_PROPLEN,
3046                     False, XA_STRING, &type, &format, &nitems, &bytes, &prop);
3047         XGetWindowAttributes(display, id, &win->wa);
3048         XGetTransientForHint(display, id, &trans);
3049         XGetWMNormalHints(display, id, &win->sh, &mask); /* XXX function? */
3050         if (trans) {
3051                 win->transient = trans;
3052                 DNPRINTF(SWM_D_MISC, "manage_window: win %u transient %u\n",
3053                     (unsigned)win->id, win->transient);
3054         }
3055         /* get supported protocols */
3056         if (XGetWMProtocols(display, id, &prot, &n)) {
3057                 for (i = 0, pp = prot; i < n; i++, pp++)
3058                         if (*pp == adelete)
3059                                 win->can_delete = 1;
3060                 if (prot)
3061                         XFree(prot);
3062         }
3063
3064         /*
3065          * Figure out where to put the window. If it was previously assigned to
3066          * a workspace (either by spawn() or manually moving), and isn't
3067          * transient, * put it in the same workspace
3068          */
3069         r = root_to_region(win->wa.root);
3070         if (prop && win->transient == 0) {
3071                 DNPRINTF(SWM_D_PROP, "got property _SWM_WS=%s\n", prop);
3072                 ws_idx = strtonum(prop, 0, 9, &errstr);
3073                 if (errstr) {
3074                         DNPRINTF(SWM_D_EVENT, "window idx is %s: %s",
3075                             errstr, prop);
3076                 }
3077                 ws = &r->s->ws[ws_idx];
3078         } else
3079                 ws = r->ws;
3080
3081         /* set up the window layout */
3082         win->id = id;
3083         win->ws = ws;
3084         win->s = r->s;  /* this never changes */
3085         TAILQ_INSERT_TAIL(&ws->winlist, win, entry);
3086
3087         win->g.w = win->wa.width;
3088         win->g.h = win->wa.height;
3089         win->g.x = win->wa.x;
3090         win->g.y = win->wa.y;
3091
3092         /* Set window properties so we can remember this after reincarnation */
3093         if (ws_idx_atom && prop == NULL &&
3094             snprintf(ws_idx_str, SWM_PROPLEN, "%d", ws->idx) < SWM_PROPLEN) {
3095                 DNPRINTF(SWM_D_PROP, "setting property _SWM_WS to %s\n",
3096                     ws_idx_str);
3097                 XChangeProperty(display, win->id, ws_idx_atom, XA_STRING, 8,
3098                     PropModeReplace, ws_idx_str, SWM_PROPLEN);
3099         }
3100         XFree(prop);
3101
3102         if (XGetClassHint(display, win->id, &win->ch)) {
3103                 DNPRINTF(SWM_D_CLASS, "class: %s name: %s\n",
3104                     win->ch.res_class, win->ch.res_name);
3105                 for (i = 0; i < quirks_length; i++){
3106                         if (!strcmp(win->ch.res_class, quirks[i].class) &&
3107                             !strcmp(win->ch.res_name, quirks[i].name)) {
3108                                 DNPRINTF(SWM_D_CLASS, "found: %s name: %s\n",
3109                                     win->ch.res_class, win->ch.res_name);
3110                                 if (quirks[i].quirk & SWM_Q_FLOAT)
3111                                         win->floating = 1;
3112                                 win->quirks = quirks[i].quirk;
3113                         }
3114                 }
3115         }
3116
3117         /* alter window position if quirky */
3118         if (win->quirks & SWM_Q_ANYWHERE) {
3119                 win->manual = 1; /* don't center the quirky windows */
3120                 bzero(&wc, sizeof wc);
3121                 mask = 0;
3122                 if (win->g.y < bar_height) {
3123                         win->g.y = wc.y = bar_height;
3124                         mask |= CWY;
3125                 }
3126                 if (win->g.w + win->g.x > WIDTH(r)) {
3127                         win->g.x = wc.x = WIDTH(win->ws->r) - win->g.w - 2;
3128                         mask |= CWX;
3129                 }
3130                 wc.border_width = 1;
3131                 mask |= CWBorderWidth;
3132                 XConfigureWindow(display, win->id, mask, &wc);
3133         }
3134
3135         /* Reset font sizes (the bruteforce way; no default keybinding). */
3136         if (win->quirks & SWM_Q_XTERM_FONTADJ) {
3137                 for (i = 0; i < SWM_MAX_FONT_STEPS; i++)
3138                         fake_keypress(win, XK_KP_Subtract, ShiftMask);
3139                 for (i = 0; i < SWM_MAX_FONT_STEPS; i++)
3140                         fake_keypress(win, XK_KP_Add, ShiftMask);
3141         }
3142
3143         XSelectInput(display, id, EnterWindowMask | FocusChangeMask |
3144             PropertyChangeMask | StructureNotifyMask);
3145
3146         set_win_state(win, NormalState);
3147
3148         /* floaters need to be mapped if they are in the current workspace */
3149         if (win->floating && (ws->idx == r->ws->idx))
3150                 XMapRaised(display, win->id);
3151
3152         /* make new win focused */
3153         focus_win(win);
3154
3155         return (win);
3156 }
3157
3158 void
3159 unmanage_window(struct ws_win *win)
3160 {
3161         struct workspace        *ws;
3162
3163         if (win == NULL)
3164                 return;
3165
3166         DNPRINTF(SWM_D_MISC, "unmanage_window:  %lu\n", win->id);
3167
3168         ws = win->ws;
3169
3170         /* find a window to focus */
3171         if (ws->focus == win)
3172                 ws->focus = TAILQ_PREV(win, ws_win_list, entry);
3173         if (ws->focus == NULL)
3174                 ws->focus = TAILQ_FIRST(&ws->winlist);
3175         if (ws->focus == NULL || ws->focus == win) {
3176                 ws->focus = NULL;
3177                 unfocus_win(win);
3178         } else
3179                 focus_win(ws->focus);
3180         if (ws->focus_prev == win)
3181                 ws->focus_prev = NULL;
3182
3183         TAILQ_REMOVE(&win->ws->winlist, win, entry);
3184         set_win_state(win, WithdrawnState);
3185         if (win->ch.res_class)
3186                 XFree(win->ch.res_class);
3187         if (win->ch.res_name)
3188                 XFree(win->ch.res_name);
3189         free(win);
3190 }
3191
3192 void
3193 configurerequest(XEvent *e)
3194 {
3195         XConfigureRequestEvent  *ev = &e->xconfigurerequest;
3196         struct ws_win           *win;
3197         int                     new = 0;
3198         XWindowChanges          wc;
3199
3200         if ((win = find_window(ev->window)) == NULL)
3201                 new = 1;
3202
3203         if (new) {
3204                 DNPRINTF(SWM_D_EVENT, "configurerequest: new window: %lu\n",
3205                     ev->window);
3206                 bzero(&wc, sizeof wc);
3207                 wc.x = ev->x;
3208                 wc.y = ev->y;
3209                 wc.width = ev->width;
3210                 wc.height = ev->height;
3211                 wc.border_width = ev->border_width;
3212                 wc.sibling = ev->above;
3213                 wc.stack_mode = ev->detail;
3214                 XConfigureWindow(display, ev->window, ev->value_mask, &wc);
3215         } else {
3216                 DNPRINTF(SWM_D_EVENT, "configurerequest: change window: %lu\n",
3217                     ev->window);
3218                 if (win->floating) {
3219                         if (ev->value_mask & CWX)
3220                                 win->g.x = ev->x;
3221                         if (ev->value_mask & CWY)
3222                                 win->g.y = ev->y;
3223                         if (ev->value_mask & CWWidth)
3224                                 win->g.w = ev->width;
3225                         if (ev->value_mask & CWHeight)
3226                                 win->g.h = ev->height;
3227                         if (win->ws->r != NULL) {
3228                                 /* this seems to be full screen */
3229                                 if (win->g.w >= WIDTH(win->ws->r)) {
3230                                         win->g.x = 0;
3231                                         win->g.w = WIDTH(win->ws->r);
3232                                         ev->value_mask |= CWX | CWWidth;
3233                                 }
3234                                 if (win->g.h >= HEIGHT(win->ws->r)) {
3235                                         /* kill border */
3236                                         win->g.y = 0;
3237                                         win->g.h = HEIGHT(win->ws->r);
3238                                         ev->value_mask |= CWY | CWHeight;
3239                                 }
3240                         }
3241                         if ((ev->value_mask & (CWX | CWY)) &&
3242                             !(ev->value_mask & (CWWidth | CWHeight)))
3243                                 config_win(win);
3244                         XMoveResizeWindow(display, win->id,
3245                             win->g.x, win->g.y, win->g.w, win->g.h);
3246                 } else
3247                         config_win(win);
3248         }
3249 }
3250
3251 void
3252 configurenotify(XEvent *e)
3253 {
3254         struct ws_win           *win;
3255         long                    mask;
3256
3257         DNPRINTF(SWM_D_EVENT, "configurenotify: window: %lu\n",
3258             e->xconfigure.window);
3259
3260         XMapWindow(display, e->xconfigure.window);
3261         win = find_window(e->xconfigure.window);
3262         if (win) {
3263                 XGetWMNormalHints(display, win->id, &win->sh, &mask);
3264                 adjust_font(win);
3265                 XMapWindow(display, win->id);
3266                 if (font_adjusted)
3267                         stack();
3268         }
3269 }
3270
3271 void
3272 destroynotify(XEvent *e)
3273 {
3274         struct ws_win           *win;
3275         XDestroyWindowEvent     *ev = &e->xdestroywindow;
3276
3277         DNPRINTF(SWM_D_EVENT, "destroynotify: window %lu\n", ev->window);
3278
3279         if ((win = find_window(ev->window)) != NULL) {
3280                 unmanage_window(win);
3281                 stack();
3282         }
3283 }
3284
3285 void
3286 enternotify(XEvent *e)
3287 {
3288         XCrossingEvent          *ev = &e->xcrossing;
3289         struct ws_win           *win;
3290
3291         DNPRINTF(SWM_D_EVENT, "enternotify: window: %lu\n", ev->window);
3292
3293         if (ignore_enter) {
3294                 /* eat event(r) to prevent autofocus */
3295                 ignore_enter--;
3296                 return;
3297         }
3298
3299         if ((win = find_window(ev->window)) != NULL)
3300                 focus_win(win);
3301 }
3302
3303 void
3304 focusin(XEvent *e)
3305 {
3306         DNPRINTF(SWM_D_EVENT, "focusin: window: %lu\n", e->xfocus.window);
3307 }
3308
3309 void
3310 focusout(XEvent *e)
3311 {
3312         struct swm_screen       *s;
3313         Window                  rr, cr;
3314         int                     x, y, wx, wy;
3315         unsigned int            mask;
3316
3317         DNPRINTF(SWM_D_EVENT, "focusout: window: %lu\n", e->xfocus.window);
3318
3319         if (cur_focus && cur_focus->ws->r &&
3320             cur_focus->id == e->xfocus.window) {
3321                 s = cur_focus->ws->r->s;
3322                 if (XQueryPointer(display, cur_focus->id,
3323                     &rr, &cr, &x, &y, &wx, &wy, &mask) != False &&
3324                     cr == 0 && !mask &&
3325                     x == DisplayWidth(display, s->idx) / 2 &&
3326                     y == DisplayHeight(display, s->idx) / 2)
3327                         unfocus_win(cur_focus);
3328         }
3329 }
3330
3331 void
3332 mappingnotify(XEvent *e)
3333 {
3334         XMappingEvent           *ev = &e->xmapping;
3335
3336         DNPRINTF(SWM_D_EVENT, "mappingnotify: window: %lu\n", ev->window);
3337
3338         XRefreshKeyboardMapping(ev);
3339         if (ev->request == MappingKeyboard)
3340                 grabkeys();
3341 }
3342
3343 void
3344 maprequest(XEvent *e)
3345 {
3346         XMapRequestEvent        *ev = &e->xmaprequest;
3347         XWindowAttributes       wa;
3348
3349         DNPRINTF(SWM_D_EVENT, "maprequest: window: %lu\n",
3350             e->xmaprequest.window);
3351
3352         if (!XGetWindowAttributes(display, ev->window, &wa))
3353                 return;
3354         if (wa.override_redirect)
3355                 return;
3356         manage_window(e->xmaprequest.window);
3357
3358         stack();
3359 }
3360
3361 void
3362 propertynotify(XEvent *e)
3363 {
3364         struct ws_win           *win;
3365         XPropertyEvent          *ev = &e->xproperty;
3366
3367         DNPRINTF(SWM_D_EVENT, "propertynotify: window: %lu\n",
3368             ev->window);
3369
3370         if (ev->state == PropertyDelete)
3371                 return; /* ignore */
3372         win = find_window(ev->window);
3373         if (win == NULL)
3374                 return;
3375
3376         switch (ev->atom) {
3377         case XA_WM_NORMAL_HINTS:
3378 #if 0
3379                 long            mask;
3380                 XGetWMNormalHints(display, win->id, &win->sh, &mask);
3381                 fprintf(stderr, "normal hints: flag 0x%x\n", win->sh.flags);
3382                 if (win->sh.flags & PMinSize) {
3383                         win->g.w = win->sh.min_width;
3384                         win->g.h = win->sh.min_height;
3385                         fprintf(stderr, "min %d %d\n", win->g.w, win->g.h);
3386                 }
3387                 XMoveResizeWindow(display, win->id,
3388                     win->g.x, win->g.y, win->g.w, win->g.h);
3389 #endif
3390                 break;
3391         default:
3392                 break;
3393         }
3394 }
3395
3396 void
3397 unmapnotify(XEvent *e)
3398 {
3399         DNPRINTF(SWM_D_EVENT, "unmapnotify: window: %lu\n", e->xunmap.window);
3400 }
3401
3402 void
3403 visibilitynotify(XEvent *e)
3404 {
3405         int                     i;
3406         struct swm_region       *r;
3407
3408         DNPRINTF(SWM_D_EVENT, "visibilitynotify: window: %lu\n",
3409             e->xvisibility.window);
3410         if (e->xvisibility.state == VisibilityUnobscured)
3411                 for (i = 0; i < ScreenCount(display); i++)
3412                         TAILQ_FOREACH(r, &screens[i].rl, entry)
3413                                 if (e->xvisibility.window == r->bar_window)
3414                                         bar_update();
3415 }
3416
3417 int
3418 xerror_start(Display *d, XErrorEvent *ee)
3419 {
3420         other_wm = 1;
3421         return (-1);
3422 }
3423
3424 int
3425 xerror(Display *d, XErrorEvent *ee)
3426 {
3427         /* fprintf(stderr, "error: %p %p\n", display, ee); */
3428         return (-1);
3429 }
3430
3431 int
3432 active_wm(void)
3433 {
3434         other_wm = 0;
3435         xerrorxlib = XSetErrorHandler(xerror_start);
3436
3437         /* this causes an error if some other window manager is running */
3438         XSelectInput(display, DefaultRootWindow(display),
3439             SubstructureRedirectMask);
3440         XSync(display, False);
3441         if (other_wm)
3442                 return (1);
3443
3444         XSetErrorHandler(xerror);
3445         XSync(display, False);
3446         return (0);
3447 }
3448
3449 long
3450 getstate(Window w)
3451 {
3452         int                     format, status;
3453         long                    result = -1;
3454         unsigned char           *p = NULL;
3455         unsigned long           n, extra;
3456         Atom                    real;
3457
3458         status = XGetWindowProperty(display, w, astate, 0L, 2L, False, astate,
3459             &real, &format, &n, &extra, (unsigned char **)&p);
3460         if (status != Success)
3461                 return (-1);
3462         if (n != 0)
3463                 result = *((long *)p);
3464         XFree(p);
3465         return (result);
3466 }
3467
3468 void
3469 new_region(struct swm_screen *s, int x, int y, int w, int h)
3470 {
3471         struct swm_region       *r, *n;
3472         struct workspace        *ws = NULL;
3473         int                     i;
3474
3475         DNPRINTF(SWM_D_MISC, "new region: screen[%d]:%dx%d+%d+%d\n",
3476              s->idx, w, h, x, y);
3477
3478         /* remove any conflicting regions */
3479         n = TAILQ_FIRST(&s->rl);
3480         while (n) {
3481                 r = n;
3482                 n = TAILQ_NEXT(r, entry);
3483                 if (X(r) < (x + w) &&
3484                     (X(r) + WIDTH(r)) > x &&
3485                     Y(r) < (y + h) &&
3486                     (Y(r) + HEIGHT(r)) > y) {
3487                         XDestroyWindow(display, r->bar_window);
3488                         TAILQ_REMOVE(&s->rl, r, entry);
3489                         TAILQ_INSERT_TAIL(&s->orl, r, entry);
3490                 }
3491         }
3492
3493         /* search old regions for one to reuse */
3494
3495         /* size + location match */
3496         TAILQ_FOREACH(r, &s->orl, entry)
3497                 if (X(r) == x && Y(r) == y &&
3498                     HEIGHT(r) == h && WIDTH(r) == w)
3499                         break;
3500
3501         /* size match */
3502         TAILQ_FOREACH(r, &s->orl, entry)
3503                 if (HEIGHT(r) == h && WIDTH(r) == w)
3504                         break;
3505
3506         if (r != NULL) {
3507                 TAILQ_REMOVE(&s->orl, r, entry);
3508                 /* try to use old region's workspace */
3509                 if (r->ws->r == NULL)
3510                         ws = r->ws;
3511         } else
3512                 if ((r = calloc(1, sizeof(struct swm_region))) == NULL)
3513                         errx(1, "calloc: failed to allocate memory for screen");
3514
3515         /* if we don't have a workspace already, find one */
3516         if (ws == NULL) {
3517                 for (i = 0; i < SWM_WS_MAX; i++)
3518                         if (s->ws[i].r == NULL) {
3519                                 ws = &s->ws[i];
3520                                 break;
3521                         }
3522         }
3523
3524         if (ws == NULL)
3525                 errx(1, "no free workspaces\n");
3526
3527         X(r) = x;
3528         Y(r) = y;
3529         WIDTH(r) = w;
3530         HEIGHT(r) = h;
3531         r->s = s;
3532         r->ws = ws;
3533         ws->r = r;
3534         TAILQ_INSERT_TAIL(&s->rl, r, entry);
3535 }
3536
3537 void
3538 scan_xrandr(int i)
3539 {
3540 #ifdef SWM_XRR_HAS_CRTC
3541         XRRCrtcInfo             *ci;
3542         XRRScreenResources      *sr;
3543         int                     c;
3544         int                     ncrtc = 0;
3545 #endif /* SWM_XRR_HAS_CRTC */
3546         struct swm_region       *r;
3547
3548
3549         if (i >= ScreenCount(display))
3550                 errx(1, "invalid screen");
3551
3552         /* remove any old regions */
3553         while ((r = TAILQ_FIRST(&screens[i].rl)) != NULL) {
3554                 r->ws->r = NULL;
3555                 XDestroyWindow(display, r->bar_window);
3556                 TAILQ_REMOVE(&screens[i].rl, r, entry);
3557                 TAILQ_INSERT_TAIL(&screens[i].orl, r, entry);
3558         }
3559
3560         /* map virtual screens onto physical screens */
3561 #ifdef SWM_XRR_HAS_CRTC
3562         if (xrandr_support) {
3563                 sr = XRRGetScreenResources(display, screens[i].root);
3564                 if (sr == NULL)
3565                         new_region(&screens[i], 0, 0,
3566                             DisplayWidth(display, i),
3567                             DisplayHeight(display, i));
3568                 else
3569                         ncrtc = sr->ncrtc;
3570
3571                 for (c = 0, ci = NULL; c < ncrtc; c++) {
3572                         ci = XRRGetCrtcInfo(display, sr, sr->crtcs[c]);
3573                         if (ci->noutput == 0)
3574                                 continue;
3575
3576                         if (ci != NULL && ci->mode == None)
3577                                 new_region(&screens[i], 0, 0,
3578                                     DisplayWidth(display, i),
3579                                     DisplayHeight(display, i));
3580                         else
3581                                 new_region(&screens[i],
3582                                     ci->x, ci->y, ci->width, ci->height);
3583                 }
3584                 if (ci)
3585                         XRRFreeCrtcInfo(ci);
3586                 XRRFreeScreenResources(sr);
3587         } else
3588 #endif /* SWM_XRR_HAS_CRTC */
3589         {
3590                 new_region(&screens[i], 0, 0, DisplayWidth(display, i),
3591                     DisplayHeight(display, i));
3592         }
3593 }
3594
3595 void
3596 screenchange(XEvent *e) {
3597         XRRScreenChangeNotifyEvent      *xe = (XRRScreenChangeNotifyEvent *)e;
3598         struct swm_region               *r;
3599         struct ws_win                   *win;
3600         int                             i;
3601
3602         DNPRINTF(SWM_D_EVENT, "screenchange: %lu\n", xe->root);
3603
3604         if (!XRRUpdateConfiguration(e))
3605                 return;
3606
3607         /* silly event doesn't include the screen index */
3608         for (i = 0; i < ScreenCount(display); i++)
3609                 if (screens[i].root == xe->root)
3610                         break;
3611         if (i >= ScreenCount(display))
3612                 errx(1, "screenchange: screen not found\n");
3613
3614         /* brute force for now, just re-enumerate the regions */
3615         scan_xrandr(i);
3616
3617         /* hide any windows that went away */
3618         TAILQ_FOREACH(r, &screens[i].rl, entry)
3619                 TAILQ_FOREACH(win, &r->ws->winlist, entry)
3620                         XUnmapWindow(display, win->id);
3621
3622         /* add bars to all regions */
3623         for (i = 0; i < ScreenCount(display); i++)
3624                 TAILQ_FOREACH(r, &screens[i].rl, entry)
3625                         bar_setup(r);
3626         stack();
3627 }
3628
3629 void
3630 setup_screens(void)
3631 {
3632         Window                  d1, d2, *wins = NULL;
3633         XWindowAttributes       wa;
3634         unsigned int            no;
3635         int                     i, j, k;
3636         int                     errorbase, major, minor;
3637         struct workspace        *ws;
3638         int                     ws_idx_atom;
3639
3640
3641         if ((screens = calloc(ScreenCount(display),
3642              sizeof(struct swm_screen))) == NULL)
3643                 errx(1, "calloc: screens");
3644
3645         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
3646
3647         /* initial Xrandr setup */
3648         xrandr_support = XRRQueryExtension(display,
3649             &xrandr_eventbase, &errorbase);
3650         if (xrandr_support)
3651                 if (XRRQueryVersion(display, &major, &minor) && major < 1)
3652                         xrandr_support = 0;
3653
3654         /* map physical screens */
3655         for (i = 0; i < ScreenCount(display); i++) {
3656                 DNPRINTF(SWM_D_WS, "setup_screens: init screen %d\n", i);
3657                 screens[i].idx = i;
3658                 TAILQ_INIT(&screens[i].rl);
3659                 TAILQ_INIT(&screens[i].orl);
3660                 screens[i].root = RootWindow(display, i);
3661
3662                 /* set default colors */
3663                 setscreencolor("red", i + 1, SWM_S_COLOR_FOCUS);
3664                 setscreencolor("rgb:88/88/88", i + 1, SWM_S_COLOR_UNFOCUS);
3665                 setscreencolor("rgb:00/80/80", i + 1, SWM_S_COLOR_BAR_BORDER);
3666                 setscreencolor("black", i + 1, SWM_S_COLOR_BAR);
3667                 setscreencolor("rgb:a0/a0/a0", i + 1, SWM_S_COLOR_BAR_FONT);
3668
3669                 /* init all workspaces */
3670                 /* XXX these should be dynamically allocated too */
3671                 for (j = 0; j < SWM_WS_MAX; j++) {
3672                         ws = &screens[i].ws[j];
3673                         ws->idx = j;
3674                         ws->restack = 1;
3675                         ws->focus = NULL;
3676                         ws->r = NULL;
3677                         TAILQ_INIT(&ws->winlist);
3678
3679                         for (k = 0; layouts[k].l_stack != NULL; k++)
3680                                 if (layouts[k].l_config != NULL)
3681                                         layouts[k].l_config(ws,
3682                                             SWM_ARG_ID_STACKINIT);
3683                         ws->cur_layout = &layouts[0];
3684                 }
3685                 /* grab existing windows (before we build the bars)*/
3686                 if (!XQueryTree(display, screens[i].root, &d1, &d2, &wins, &no))
3687                         continue;
3688
3689                 scan_xrandr(i);
3690
3691                 if (xrandr_support)
3692                         XRRSelectInput(display, screens[i].root,
3693                             RRScreenChangeNotifyMask);
3694
3695                 /* attach windows to a region */
3696                 /* normal windows */
3697                 for (j = 0; j < no; j++) {
3698                         XGetWindowAttributes(display, wins[j], &wa);
3699                         if (!XGetWindowAttributes(display, wins[j], &wa) ||
3700                             wa.override_redirect ||
3701                             XGetTransientForHint(display, wins[j], &d1))
3702                                 continue;
3703
3704                         if (wa.map_state == IsViewable ||
3705                             getstate(wins[j]) == NormalState)
3706                                 manage_window(wins[j]);
3707                 }
3708                 /* transient windows */
3709                 for (j = 0; j < no; j++) {
3710                         if (!XGetWindowAttributes(display, wins[j], &wa))
3711                                 continue;
3712
3713                         if (XGetTransientForHint(display, wins[j], &d1) &&
3714                             (wa.map_state == IsViewable || getstate(wins[j]) ==
3715                             NormalState))
3716                                 manage_window(wins[j]);
3717                 }
3718                 if (wins) {
3719                         XFree(wins);
3720                         wins = NULL;
3721                 }
3722         }
3723 }
3724 void
3725 setup_globals(void)
3726 {
3727         if ((bar_fonts[0] = strdup("-*-terminus-medium-*-*-*-*-*-*-*-*-*-*-*"))
3728             == NULL)
3729                 err(1, "setup_globals: strdup");
3730         if ((bar_fonts[1] = strdup("-*-times-medium-r-*-*-*-*-*-*-*-*-*-*"))
3731             == NULL)
3732                 err(1, "setup_globals: strdup");
3733         if ((spawn_term[0] = strdup("xterm")) == NULL)
3734                 err(1, "setup_globals: strdup");
3735 }
3736
3737 void
3738 workaround(void)
3739 {
3740         int                     i;
3741         Atom                    netwmcheck, netwmname, utf8_string;
3742         Window                  root;
3743
3744         /* work around sun jdk bugs, code from wmname */
3745         netwmcheck = XInternAtom(display, "_NET_SUPPORTING_WM_CHECK", False);
3746         netwmname = XInternAtom(display, "_NET_WM_NAME", False);
3747         utf8_string = XInternAtom(display, "UTF8_STRING", False);
3748         for (i = 0; i < ScreenCount(display); i++) {
3749                 root = screens[i].root;
3750                 XChangeProperty(display, root, netwmcheck, XA_WINDOW, 32,
3751                     PropModeReplace, (unsigned char *)&root, 1);
3752                 XChangeProperty(display, root, netwmname, utf8_string, 8,
3753                     PropModeReplace, "LG3D", strlen("LG3D"));
3754         }
3755 }
3756
3757 int
3758 main(int argc, char *argv[])
3759 {
3760         struct passwd           *pwd;
3761         struct swm_region       *r;
3762         char                    conf[PATH_MAX], *cfile = NULL;
3763         struct stat             sb;
3764         XEvent                  e;
3765         int                     xfd, i;
3766         fd_set                  rd;
3767
3768         start_argv = argv;
3769         fprintf(stderr, "Welcome to scrotwm V%s cvs tag: %s\n",
3770             SWM_VERSION, cvstag);
3771         if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
3772                 warnx("no locale support");
3773
3774         if (!(display = XOpenDisplay(0)))
3775                 errx(1, "can not open display");
3776
3777         if (active_wm())
3778                 errx(1, "other wm running");
3779
3780         astate = XInternAtom(display, "WM_STATE", False);
3781         aprot = XInternAtom(display, "WM_PROTOCOLS", False);
3782         adelete = XInternAtom(display, "WM_DELETE_WINDOW", False);
3783
3784         /* look for local and global conf file */
3785         pwd = getpwuid(getuid());
3786         if (pwd == NULL)
3787                 errx(1, "invalid user %d", getuid());
3788
3789         setup_screens();
3790         setup_globals();
3791         setup_keys();
3792         setup_quirks();
3793         setup_spawn();
3794
3795         snprintf(conf, sizeof conf, "%s/.%s", pwd->pw_dir, SWM_CONF_FILE);
3796         if (stat(conf, &sb) != -1) {
3797                 if (S_ISREG(sb.st_mode))
3798                         cfile = conf;
3799         } else {
3800                 /* try global conf file */
3801                 snprintf(conf, sizeof conf, "/etc/%s", SWM_CONF_FILE);
3802                 if (!stat(conf, &sb))
3803                         if (S_ISREG(sb.st_mode))
3804                                 cfile = conf;
3805         }
3806         if (cfile)
3807                 conf_load(cfile);
3808
3809         /* setup all bars */
3810         for (i = 0; i < ScreenCount(display); i++)
3811                 TAILQ_FOREACH(r, &screens[i].rl, entry)
3812                         bar_setup(r);
3813
3814         /* set some values to work around bad programs */
3815         workaround();
3816
3817         grabkeys();
3818         stack();
3819
3820         xfd = ConnectionNumber(display);
3821         while (running) {
3822                 FD_ZERO(&rd);
3823                 FD_SET(xfd, &rd);
3824                 if (select(xfd + 1, &rd, NULL, NULL, NULL) == -1)
3825                         if (errno != EINTR)
3826                                 errx(1, "select failed");
3827                 if (bar_alarm) {
3828                         bar_alarm = 0;
3829                         bar_update();
3830                 }
3831                 while (XPending(display)) {
3832                         XNextEvent(display, &e);
3833                         if (e.type < LASTEvent) {
3834                                 if (handler[e.type])
3835                                         handler[e.type](&e);
3836                                 else
3837                                         DNPRINTF(SWM_D_EVENT,
3838                                             "win: %lu unknown event: %d\n",
3839                                             e.xany.window, e.type);
3840                         } else {
3841                                 switch (e.type - xrandr_eventbase) {
3842                                 case RRScreenChangeNotify:
3843                                         screenchange(&e);
3844                                         break;
3845                                 default:
3846                                         DNPRINTF(SWM_D_EVENT,
3847                                             "win: %lu unknown xrandr event: "
3848                                             "%d\n", e.xany.window, e.type);
3849                                         break;
3850                                 }
3851                         }
3852                 }
3853         }
3854
3855         XCloseDisplay(display);
3856
3857         return (0);
3858 }