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     "0.9.13"
  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 #define SWM_D_EVENTQ            0x1000
 114 #define SWM_D_CONF              0x2000
 115
 116 u_int32_t               swm_debug = 0
 117                             | SWM_D_MISC
 118                             | SWM_D_EVENT
 119                             | SWM_D_WS
 120                             | SWM_D_FOCUS
 121                             | SWM_D_MOVE
 122                             | SWM_D_STACK
 123                             | SWM_D_MOUSE
 124                             | SWM_D_PROP
 125                             | SWM_D_CLASS
 126                             | SWM_D_KEY
 127                             | SWM_D_QUIRK
 128                             | SWM_D_SPAWN
 129                             | SWM_D_EVENTQ
 130                             | SWM_D_CONF
 131                             ;
 132 #else
 133 #define DPRINTF(x...)
 134 #define DNPRINTF(n,x...)
 135 #endif
 136
 137 #define LENGTH(x)               (sizeof x / sizeof x[0])
 138 #define MODKEY                  Mod1Mask
 139 #define CLEANMASK(mask)         (mask & ~(numlockmask | LockMask))
 140 #define BUTTONMASK              (ButtonPressMask|ButtonReleaseMask)
 141 #define MOUSEMASK               (BUTTONMASK|PointerMotionMask)
 142 #define SWM_PROPLEN             (16)
 143 #define SWM_FUNCNAME_LEN        (32)
 144 #define SWM_KEYS_LEN            (255)
 145 #define SWM_QUIRK_LEN           (64)
 146 #define X(r)                    (r)->g.x
 147 #define Y(r)                    (r)->g.y
 148 #define WIDTH(r)                (r)->g.w
 149 #define HEIGHT(r)               (r)->g.h
 150 #define SWM_MAX_FONT_STEPS      (3)
 151
 152 #ifndef SWM_LIB
 153 #define SWM_LIB                 "/usr/local/lib/libswmhack.so"
 154 #endif
 155
 156 char                    **start_argv;
 157 Atom                    astate;
 158 Atom                    aprot;
 159 Atom                    adelete;
 160 Atom                    takefocus;
 161 volatile sig_atomic_t   running = 1;
 162 int                     outputs = 0;
 163 int                     (*xerrorxlib)(Display *, XErrorEvent *);
 164 int                     other_wm;
 165 int                     ss_enabled = 0;
 166 int                     xrandr_support;
 167 int                     xrandr_eventbase;
 168 int                     ignore_enter = 0;
 169 unsigned int            numlockmask = 0;
 170 Display                 *display;
 171
 172 int                     cycle_empty = 0;
 173 int                     cycle_visible = 0;
 174 int                     term_width = 0;
 175 int                     font_adjusted = 0;
 176 unsigned int            mod_key = MODKEY;
 177
 178 /* dialog windows */
 179 double                  dialog_ratio = .6;
 180 /* status bar */
 181 #define SWM_BAR_MAX     (256)
 182 char                    *bar_argv[] = { NULL, NULL };
 183 int                     bar_pipe[2];
 184 char                    bar_ext[SWM_BAR_MAX];
 185 char                    bar_vertext[SWM_BAR_MAX];
 186 int                     bar_version = 0;
 187 sig_atomic_t            bar_alarm = 0;
 188 int                     bar_delay = 30;
 189 int                     bar_enabled = 1;
 190 int                     bar_extra = 1;
 191 int                     bar_extra_running = 0;
 192 int                     bar_verbose = 1;
 193 int                     bar_height = 0;
 194 int                     stack_enabled = 1;
 195 int                     clock_enabled = 1;
 196 int                     title_name_enabled = 0;
 197 int                     title_class_enabled = 0;
 198 pid_t                   bar_pid;
 199 GC                      bar_gc;
 200 XGCValues               bar_gcv;
 201 int                     bar_fidx = 0;
 202 XFontStruct             *bar_fs;
 203 char                    *bar_fonts[] = { NULL, NULL, NULL, NULL };/* XXX Make fully dynamic */
 204 char                    *spawn_term[] = { NULL, NULL };         /* XXX Make fully dynamic */
 205
 206 #define SWM_MENU_FN     (2)
 207 #define SWM_MENU_NB     (4)
 208 #define SWM_MENU_NF     (6)
 209 #define SWM_MENU_SB     (8)
 210 #define SWM_MENU_SF     (10)
 211
 212 /* layout manager data */
 213 struct swm_geometry {
 214         int                     x;
 215         int                     y;
 216         int                     w;
 217         int                     h;
 218 };
 219
 220 struct swm_screen;
 221 struct workspace;
 222
 223 /* virtual "screens" */
 224 struct swm_region {
 225         TAILQ_ENTRY(swm_region) entry;
 226         struct swm_geometry     g;
 227         struct workspace        *ws;    /* current workspace on this region */
 228         struct swm_screen       *s;     /* screen idx */
 229         Window                  bar_window;
 230 };
 231 TAILQ_HEAD(swm_region_list, swm_region);
 232
 233 struct ws_win {
 234         TAILQ_ENTRY(ws_win)     entry;
 235         Window                  id;
 236         Window                  transient;
 237         struct ws_win           *child_trans;   /* transient child window */
 238         struct swm_geometry     g;
 239         int                     floating;
 240         int                     manual;
 241         int                     font_size_boundary[SWM_MAX_FONT_STEPS];
 242         int                     font_steps;
 243         int                     last_inc;
 244         int                     can_delete;
 245         int                     take_focus;
 246         int                     java;
 247         unsigned long           quirks;
 248         struct workspace        *ws;    /* always valid */
 249         struct swm_screen       *s;     /* always valid, never changes */
 250         XWindowAttributes       wa;
 251         XSizeHints              sh;
 252         XClassHint              ch;
 253 };
 254 TAILQ_HEAD(ws_win_list, ws_win);
 255
 256 /* user/key callable function IDs */
 257 enum keyfuncid {
 258         kf_cycle_layout,
 259         kf_stack_reset,
 260         kf_master_shrink,
 261         kf_master_grow,
 262         kf_master_add,
 263         kf_master_del,
 264         kf_stack_inc,
 265         kf_stack_dec,
 266         kf_swap_main,
 267         kf_focus_next,
 268         kf_focus_prev,
 269         kf_swap_next,
 270         kf_swap_prev,
 271         kf_spawn_term,
 272         kf_spawn_menu,
 273         kf_quit,
 274         kf_restart,
 275         kf_focus_main,
 276         kf_ws_1,
 277         kf_ws_2,
 278         kf_ws_3,
 279         kf_ws_4,
 280         kf_ws_5,
 281         kf_ws_6,
 282         kf_ws_7,
 283         kf_ws_8,
 284         kf_ws_9,
 285         kf_ws_10,
 286         kf_ws_next,
 287         kf_ws_prev,
 288         kf_screen_next,
 289         kf_screen_prev,
 290         kf_mvws_1,
 291         kf_mvws_2,
 292         kf_mvws_3,
 293         kf_mvws_4,
 294         kf_mvws_5,
 295         kf_mvws_6,
 296         kf_mvws_7,
 297         kf_mvws_8,
 298         kf_mvws_9,
 299         kf_mvws_10,
 300         kf_bar_toggle,
 301         kf_wind_kill,
 302         kf_wind_del,
 303         kf_screenshot_all,
 304         kf_screenshot_wind,
 305         kf_float_toggle,
 306         kf_version,
 307         kf_spawn_lock,
 308         kf_spawn_initscr,
 309         kf_spawn_custom,
 310         kf_invalid
 311 };
 312
 313 /* layout handlers */
 314 void    stack(void);
 315 void    vertical_config(struct workspace *, int);
 316 void    vertical_stack(struct workspace *, struct swm_geometry *);
 317 void    horizontal_config(struct workspace *, int);
 318 void    horizontal_stack(struct workspace *, struct swm_geometry *);
 319 void    max_stack(struct workspace *, struct swm_geometry *);
 320
 321 void    grabbuttons(struct ws_win *, int);
 322 void    new_region(struct swm_screen *, int, int, int, int);
 323 void    unmanage_window(struct ws_win *);
 324
 325 struct layout {
 326         void            (*l_stack)(struct workspace *, struct swm_geometry *);
 327         void            (*l_config)(struct workspace *, int);
 328         u_int32_t       flags;
 329 #define SWM_L_FOCUSPREV         (1<<0)
 330 #define SWM_L_MAPONFOCUS        (1<<1)
 331         char            *name;
 332 } layouts[] =  {
 333         /* stack,               configure */
 334         { vertical_stack,       vertical_config,        0,      "[|]" },
 335         { horizontal_stack,     horizontal_config,      0,      "[-]" },
 336         { max_stack,            NULL,
 337           SWM_L_FOCUSPREV | SWM_L_MAPONFOCUS,                   "[ ]"},
 338         { NULL,                 NULL,                   0},
 339 };
 340
 341 #define SWM_H_SLICE             (32)
 342 #define SWM_V_SLICE             (32)
 343
 344 /* define work spaces */
 345 struct workspace {
 346         int                     idx;            /* workspace index */
 347         struct layout           *cur_layout;    /* current layout handlers */
 348         struct ws_win           *focus;         /* may be NULL */
 349         struct ws_win           *focus_prev;    /* may be NULL */
 350         struct swm_region       *r;             /* may be NULL */
 351         struct swm_region       *old_r;         /* may be NULL */
 352         struct ws_win_list      winlist;        /* list of windows in ws */
 353
 354         /* stacker state */
 355         struct {
 356                                 int horizontal_msize;
 357                                 int horizontal_mwin;
 358                                 int horizontal_stacks;
 359                                 int vertical_msize;
 360                                 int vertical_mwin;
 361                                 int vertical_stacks;
 362         } l_state;
 363 };
 364
 365 enum    { SWM_S_COLOR_BAR, SWM_S_COLOR_BAR_BORDER, SWM_S_COLOR_BAR_FONT,
 366           SWM_S_COLOR_FOCUS, SWM_S_COLOR_UNFOCUS, SWM_S_COLOR_MAX };
 367
 368 /* physical screen mapping */
 369 #define SWM_WS_MAX              (10)            /* XXX Too small? */
 370 struct swm_screen {
 371         int                     idx;            /* screen index */
 372         struct swm_region_list  rl;     /* list of regions on this screen */
 373         struct swm_region_list  orl;    /* list of old regions */
 374         Window                  root;
 375         struct workspace        ws[SWM_WS_MAX];
 376
 377         /* colors */
 378         struct {
 379                 unsigned long   color;
 380                 char            *name;
 381         } c[SWM_S_COLOR_MAX];
 382 };
 383 struct swm_screen       *screens;
 384 int                     num_screens;
 385
 386 /* args to functions */
 387 union arg {
 388         int                     id;
 389 #define SWM_ARG_ID_FOCUSNEXT    (0)
 390 #define SWM_ARG_ID_FOCUSPREV    (1)
 391 #define SWM_ARG_ID_FOCUSMAIN    (2)
 392 #define SWM_ARG_ID_SWAPNEXT     (3)
 393 #define SWM_ARG_ID_SWAPPREV     (4)
 394 #define SWM_ARG_ID_SWAPMAIN     (5)
 395 #define SWM_ARG_ID_MASTERSHRINK (6)
 396 #define SWM_ARG_ID_MASTERGROW   (7)
 397 #define SWM_ARG_ID_MASTERADD    (8)
 398 #define SWM_ARG_ID_MASTERDEL    (9)
 399 #define SWM_ARG_ID_STACKRESET   (10)
 400 #define SWM_ARG_ID_STACKINIT    (11)
 401 #define SWM_ARG_ID_CYCLEWS_UP   (12)
 402 #define SWM_ARG_ID_CYCLEWS_DOWN (13)
 403 #define SWM_ARG_ID_CYCLESC_UP   (14)
 404 #define SWM_ARG_ID_CYCLESC_DOWN (15)
 405 #define SWM_ARG_ID_STACKINC     (16)
 406 #define SWM_ARG_ID_STACKDEC     (17)
 407 #define SWM_ARG_ID_SS_ALL       (0)
 408 #define SWM_ARG_ID_SS_WINDOW    (1)
 409 #define SWM_ARG_ID_DONTCENTER   (0)
 410 #define SWM_ARG_ID_CENTER       (1)
 411 #define SWM_ARG_ID_KILLWINDOW   (0)
 412 #define SWM_ARG_ID_DELETEWINDOW (1)
 413         char                    **argv;
 414 };
 415
 416 /* quirks */
 417 struct quirk {
 418         char                    *class;
 419         char                    *name;
 420         unsigned long           quirk;
 421 #define SWM_Q_FLOAT             (1<<0)  /* float this window */
 422 #define SWM_Q_TRANSSZ           (1<<1)  /* transiend window size too small */
 423 #define SWM_Q_ANYWHERE          (1<<2)  /* don't position this window */
 424 #define SWM_Q_XTERM_FONTADJ     (1<<3)  /* adjust xterm fonts when resizing */
 425 #define SWM_Q_FULLSCREEN        (1<<4)  /* remove border */
 426 };
 427 int                             quirks_size = 0, quirks_length = 0;
 428 struct quirk                    *quirks = NULL;
 429
 430 /* events */
 431 #ifdef SWM_DEBUG
 432 void
 433 dumpevent(XEvent *e)
 434 {
 435         char                    *name = NULL;
 436
 437         switch (e->type) {
 438         case KeyPress:
 439                 name = "KeyPress";
 440                 break;
 441         case KeyRelease:
 442                 name = "KeyRelease";
 443                 break;
 444         case ButtonPress:
 445                 name = "ButtonPress";
 446                 break;
 447         case ButtonRelease:
 448                 name = "ButtonRelease";
 449                 break;
 450         case MotionNotify:
 451                 name = "MotionNotify";
 452                 break;
 453         case EnterNotify:
 454                 name = "EnterNotify";
 455                 break;
 456         case LeaveNotify:
 457                 name = "LeaveNotify";
 458                 break;
 459         case FocusIn:
 460                 name = "FocusIn";
 461                 break;
 462         case FocusOut:
 463                 name = "FocusOut";
 464                 break;
 465         case KeymapNotify:
 466                 name = "KeymapNotify";
 467                 break;
 468         case Expose:
 469                 name = "Expose";
 470                 break;
 471         case GraphicsExpose:
 472                 name = "GraphicsExpose";
 473                 break;
 474         case NoExpose:
 475                 name = "NoExpose";
 476                 break;
 477         case VisibilityNotify:
 478                 name = "VisibilityNotify";
 479                 break;
 480         case CreateNotify:
 481                 name = "CreateNotify";
 482                 break;
 483         case DestroyNotify:
 484                 name = "DestroyNotify";
 485                 break;
 486         case UnmapNotify:
 487                 name = "UnmapNotify";
 488                 break;
 489         case MapNotify:
 490                 name = "MapNotify";
 491                 break;
 492         case MapRequest:
 493                 name = "MapRequest";
 494                 break;
 495         case ReparentNotify:
 496                 name = "ReparentNotify";
 497                 break;
 498         case ConfigureNotify:
 499                 name = "ConfigureNotify";
 500                 break;
 501         case ConfigureRequest:
 502                 name = "ConfigureRequest";
 503                 break;
 504         case GravityNotify:
 505                 name = "GravityNotify";
 506                 break;
 507         case ResizeRequest:
 508                 name = "ResizeRequest";
 509                 break;
 510         case CirculateNotify:
 511                 name = "CirculateNotify";
 512                 break;
 513         case CirculateRequest:
 514                 name = "CirculateRequest";
 515                 break;
 516         case PropertyNotify:
 517                 name = "PropertyNotify";
 518                 break;
 519         case SelectionClear:
 520                 name = "SelectionClear";
 521                 break;
 522         case SelectionRequest:
 523                 name = "SelectionRequest";
 524                 break;
 525         case SelectionNotify:
 526                 name = "SelectionNotify";
 527                 break;
 528         case ColormapNotify:
 529                 name = "ColormapNotify";
 530                 break;
 531         case ClientMessage:
 532                 name = "ClientMessage";
 533                 break;
 534         case MappingNotify:
 535                 name = "MappingNotify";
 536                 break;
 537         }
 538
 539         if (name)
 540                 DNPRINTF(SWM_D_EVENTQ ,"window: %lu event: %s (%d), %d "
 541                     "remaining\n",
 542                     e->xany.window, name, e->type, QLength(display));
 543         else
 544                 DNPRINTF(SWM_D_EVENTQ, "window: %lu unknown event %d, %d "
 545                     "remaining\n",
 546                     e->xany.window, e->type, QLength(display));
 547 }
 548 #else
 549 #define dumpevent(e)
 550 #endif /* SWM_DEBUG */
 551
 552 void                    expose(XEvent *);
 553 void                    keypress(XEvent *);
 554 void                    buttonpress(XEvent *);
 555 void                    configurerequest(XEvent *);
 556 void                    configurenotify(XEvent *);
 557 void                    destroynotify(XEvent *);
 558 void                    enternotify(XEvent *);
 559 void                    focusin(XEvent *);
 560 void                    focusout(XEvent *);
 561 void                    mapnotify(XEvent *);
 562 void                    mappingnotify(XEvent *);
 563 void                    maprequest(XEvent *);
 564 void                    propertynotify(XEvent *);
 565 void                    unmapnotify(XEvent *);
 566 void                    visibilitynotify(XEvent *);
 567
 568 void                    (*handler[LASTEvent])(XEvent *) = {
 569                                 [Expose] = expose,
 570                                 [KeyPress] = keypress,
 571                                 [ButtonPress] = buttonpress,
 572                                 [ConfigureRequest] = configurerequest,
 573                                 [ConfigureNotify] = configurenotify,
 574                                 [DestroyNotify] = destroynotify,
 575                                 [EnterNotify] = enternotify,
 576                                 [FocusIn] = focusin,
 577                                 [FocusOut] = focusout,
 578                                 [MapNotify] = mapnotify,
 579                                 [MappingNotify] = mappingnotify,
 580                                 [MapRequest] = maprequest,
 581                                 [PropertyNotify] = propertynotify,
 582                                 [UnmapNotify] = unmapnotify,
 583                                 [VisibilityNotify] = visibilitynotify,
 584 };
 585
 586 void
 587 sighdlr(int sig)
 588 {
 589         pid_t                   pid;
 590
 591         switch (sig) {
 592         case SIGCHLD:
 593                 while ((pid = waitpid(WAIT_ANY, NULL, WNOHANG)) != -1) {
 594                         DNPRINTF(SWM_D_MISC, "reaping: %d\n", pid);
 595                         if (pid <= 0)
 596                                 break;
 597                 }
 598                 break;
 599         case SIGINT:
 600         case SIGTERM:
 601         case SIGHUP:
 602         case SIGQUIT:
 603                 running = 0;
 604                 break;
 605         }
 606 }
 607
 608 void
 609 installsignal(int sig, char *name)
 610 {
 611         struct sigaction        sa;
 612
 613         sa.sa_handler = sighdlr;
 614         sigemptyset(&sa.sa_mask);
 615         sa.sa_flags = 0;
 616         if (sigaction(sig, &sa, NULL) == -1)
 617                 err(1, "could not install %s handler", name);
 618 }
 619
 620 unsigned long
 621 name_to_color(char *colorname)
 622 {
 623         Colormap                cmap;
 624         Status                  status;
 625         XColor                  screen_def, exact_def;
 626         unsigned long           result = 0;
 627         char                    cname[32] = "#";
 628
 629         cmap = DefaultColormap(display, screens[0].idx);
 630         status = XAllocNamedColor(display, cmap, colorname,
 631             &screen_def, &exact_def);
 632         if (!status) {
 633                 strlcat(cname, colorname + 2, sizeof cname - 1);
 634                 status = XAllocNamedColor(display, cmap, cname, &screen_def,
 635                     &exact_def);
 636         }
 637         if (status)
 638                 result = screen_def.pixel;
 639         else
 640                 fprintf(stderr, "color '%s' not found.\n", colorname);
 641
 642         return (result);
 643 }
 644
 645 void
 646 setscreencolor(char *val, int i, int c)
 647 {
 648         if (i > 0 && i <= ScreenCount(display)) {
 649                 screens[i - 1].c[c].color = name_to_color(val);
 650                 free(screens[i - 1].c[c].name);
 651                 if ((screens[i - 1].c[c].name = strdup(val)) == NULL)
 652                         errx(1, "strdup");
 653         } else if (i == -1) {
 654                 for (i = 0; i < ScreenCount(display); i++) {
 655                         screens[i].c[c].color = name_to_color(val);
 656                         free(screens[i].c[c].name);
 657                         if ((screens[i].c[c].name = strdup(val)) == NULL)
 658                                 errx(1, "strdup");
 659                 }
 660         } else
 661                 errx(1, "invalid screen index: %d out of bounds (maximum %d)\n",
 662                     i, ScreenCount(display));
 663 }
 664
 665 void
 666 custom_region(char *val)
 667 {
 668         unsigned int                    sidx, x, y, w, h;
 669
 670         if (sscanf(val, "screen[%u]:%ux%u+%u+%u", &sidx, &w, &h, &x, &y) != 5)
 671                 errx(1, "invalid custom region, "
 672                     "should be 'screen[<n>]:<n>x<n>+<n>+<n>\n");
 673         if (sidx < 1 || sidx > ScreenCount(display))
 674                 errx(1, "invalid screen index: %d out of bounds (maximum %d)\n",
 675                     sidx, ScreenCount(display));
 676         sidx--;
 677
 678         if (w < 1 || h < 1)
 679                 errx(1, "region %ux%u+%u+%u too small\n", w, h, x, y);
 680
 681         if (x  < 0 || x > DisplayWidth(display, sidx) ||
 682             y < 0 || y > DisplayHeight(display, sidx) ||
 683             w + x > DisplayWidth(display, sidx) ||
 684             h + y > DisplayHeight(display, sidx))
 685                 errx(1, "region %ux%u+%u+%u not within screen boundaries "
 686                     "(%ux%u)\n", w, h, x, y,
 687                     DisplayWidth(display, sidx), DisplayHeight(display, sidx));
 688
 689         new_region(&screens[sidx], x, y, w, h);
 690 }
 691
 692 void
 693 socket_setnonblock(int fd)
 694 {
 695         int                     flags;
 696
 697         if ((flags = fcntl(fd, F_GETFL, 0)) == -1)
 698                 err(1, "fcntl F_GETFL");
 699         flags |= O_NONBLOCK;
 700         if ((flags = fcntl(fd, F_SETFL, flags)) == -1)
 701                 err(1, "fcntl F_SETFL");
 702 }
 703
 704 void
 705 bar_print(struct swm_region *r, char *s)
 706 {
 707         XClearWindow(display, r->bar_window);
 708         XSetForeground(display, bar_gc, r->s->c[SWM_S_COLOR_BAR_FONT].color);
 709         XDrawString(display, r->bar_window, bar_gc, 4, bar_fs->ascent, s,
 710             strlen(s));
 711 }
 712
 713 void
 714 bar_extra_stop(void)
 715 {
 716         if (bar_pipe[0]) {
 717                 close(bar_pipe[0]);
 718                 bzero(bar_pipe, sizeof bar_pipe);
 719         }
 720         if (bar_pid) {
 721                 kill(bar_pid, SIGTERM);
 722                 bar_pid = 0;
 723         }
 724         strlcpy(bar_ext, "", sizeof bar_ext);
 725         bar_extra = 0;
 726 }
 727
 728 void
 729 bar_class_name(char *s, ssize_t sz, struct ws_win *cur_focus)
 730 {
 731         int                     do_class, do_name;
 732         Status                  status;
 733         XClassHint              *xch = NULL;
 734
 735         if ((title_name_enabled == 1 || title_class_enabled == 1) &&
 736             cur_focus != NULL) {
 737                 if ((xch = XAllocClassHint()) == NULL)
 738                         goto out;
 739                 status = XGetClassHint(display, cur_focus->id, xch);
 740                 if (status == BadWindow || status == BadAlloc)
 741                         goto out;
 742                 do_class = (title_class_enabled && xch->res_class != NULL);
 743                 do_name = (title_name_enabled && xch->res_name != NULL);
 744                 if (do_class)
 745                         strlcat(s, xch->res_class, sz);
 746                 if (do_class && do_name)
 747                         strlcat(s, ":", sz);
 748                 if (do_name)
 749                         strlcat(s, xch->res_name, sz);
 750                 strlcat(s, "    ", sz);
 751         }
 752 out:
 753         if (xch)
 754                 XFree(xch);
 755 }
 756
 757 void
 758 bar_update(void)
 759 {
 760         time_t                  tmt;
 761         struct tm               tm;
 762         struct swm_region       *r;
 763         int                     i, x;
 764         size_t                  len;
 765         char                    s[SWM_BAR_MAX];
 766         char                    loc[SWM_BAR_MAX];
 767         char                    *b;
 768         char                    *stack = "";
 769
 770         if (bar_enabled == 0)
 771                 return;
 772         if (bar_extra && bar_extra_running) {
 773                 /* ignore short reads; it'll correct itself */
 774                 while ((b = fgetln(stdin, &len)) != NULL)
 775                         if (b && b[len - 1] == '\n') {
 776                                 b[len - 1] = '\0';
 777                                 strlcpy(bar_ext, b, sizeof bar_ext);
 778                         }
 779                 if (b == NULL && errno != EAGAIN) {
 780                         fprintf(stderr, "bar_extra failed: errno: %d %s\n",
 781                             errno, strerror(errno));
 782                         bar_extra_stop();
 783                 }
 784         } else
 785                 strlcpy(bar_ext, "", sizeof bar_ext);
 786
 787         if (clock_enabled == 0)
 788                 strlcpy(s, "", sizeof s);
 789         else {
 790                 time(&tmt);
 791                 localtime_r(&tmt, &tm);
 792                 strftime(s, sizeof s, "%a %b %d %R %Z %Y    ", &tm);
 793         }
 794
 795         for (i = 0; i < ScreenCount(display); i++) {
 796                 x = 1;
 797                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
 798                         if (r && r->ws)
 799                                 bar_class_name(s, sizeof s, r->ws->focus);
 800
 801                         if (stack_enabled)
 802                                 stack = r->ws->cur_layout->name;
 803
 804                         snprintf(loc, sizeof loc, "%d:%d %s   %s %s    %s",
 805                             x++, r->ws->idx + 1, stack, s, bar_ext,
 806                             bar_vertext);
 807                         bar_print(r, loc);
 808                 }
 809         }
 810         alarm(bar_delay);
 811 }
 812
 813 void
 814 bar_signal(int sig)
 815 {
 816         bar_alarm = 1;
 817 }
 818
 819 void
 820 bar_toggle(struct swm_region *r, union arg *args)
 821 {
 822         struct swm_region       *tmpr;
 823         int                     i, sc = ScreenCount(display);
 824
 825         DNPRINTF(SWM_D_MISC, "bar_toggle\n");
 826
 827         if (bar_enabled)
 828                 for (i = 0; i < sc; i++)
 829                         TAILQ_FOREACH(tmpr, &screens[i].rl, entry)
 830                                 XUnmapWindow(display, tmpr->bar_window);
 831         else
 832                 for (i = 0; i < sc; i++)
 833                         TAILQ_FOREACH(tmpr, &screens[i].rl, entry)
 834                                 XMapRaised(display, tmpr->bar_window);
 835
 836         bar_enabled = !bar_enabled;
 837
 838         stack();
 839         /* must be after stack */
 840         bar_update();
 841 }
 842
 843 void
 844 bar_refresh(void)
 845 {
 846         XSetWindowAttributes    wa;
 847         struct swm_region       *r;
 848         int                     i;
 849
 850         /* do this here because the conf file is in memory */
 851         if (bar_extra && bar_extra_running == 0 && bar_argv[0]) {
 852                 /* launch external status app */
 853                 bar_extra_running = 1;
 854                 if (pipe(bar_pipe) == -1)
 855                         err(1, "pipe error");
 856                 socket_setnonblock(bar_pipe[0]);
 857                 socket_setnonblock(bar_pipe[1]); /* XXX hmmm, really? */
 858                 if (dup2(bar_pipe[0], 0) == -1)
 859                         errx(1, "dup2");
 860                 if (dup2(bar_pipe[1], 1) == -1)
 861                         errx(1, "dup2");
 862                 if (signal(SIGPIPE, SIG_IGN) == SIG_ERR)
 863                         err(1, "could not disable SIGPIPE");
 864                 switch (bar_pid = fork()) {
 865                 case -1:
 866                         err(1, "cannot fork");
 867                         break;
 868                 case 0: /* child */
 869                         close(bar_pipe[0]);
 870                         execvp(bar_argv[0], bar_argv);
 871                         err(1, "%s external app failed", bar_argv[0]);
 872                         break;
 873                 default: /* parent */
 874                         close(bar_pipe[1]);
 875                         break;
 876                 }
 877         }
 878
 879         bzero(&wa, sizeof wa);
 880         for (i = 0; i < ScreenCount(display); i++)
 881                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
 882                         wa.border_pixel =
 883                             screens[i].c[SWM_S_COLOR_BAR_BORDER].color;
 884                         wa.background_pixel =
 885                             screens[i].c[SWM_S_COLOR_BAR].color;
 886                         XChangeWindowAttributes(display, r->bar_window,
 887                             CWBackPixel | CWBorderPixel, &wa);
 888                 }
 889         bar_update();
 890 }
 891
 892 void
 893 bar_setup(struct swm_region *r)
 894 {
 895         int                     i;
 896
 897         for (i = 0; bar_fonts[i] != NULL; i++) {
 898                 bar_fs = XLoadQueryFont(display, bar_fonts[i]);
 899                 if (bar_fs) {
 900                         bar_fidx = i;
 901                         break;
 902                 }
 903         }
 904         if (bar_fonts[i] == NULL)
 905                         errx(1, "couldn't load font");
 906         bar_height = bar_fs->ascent + bar_fs->descent + 3;
 907
 908         r->bar_window = XCreateSimpleWindow(display,
 909             r->s->root, X(r), Y(r), WIDTH(r) - 2, bar_height - 2,
 910             1, r->s->c[SWM_S_COLOR_BAR_BORDER].color,
 911             r->s->c[SWM_S_COLOR_BAR].color);
 912         bar_gc = XCreateGC(display, r->bar_window, 0, &bar_gcv);
 913         XSetFont(display, bar_gc, bar_fs->fid);
 914         XSelectInput(display, r->bar_window, VisibilityChangeMask);
 915         if (bar_enabled)
 916                 XMapRaised(display, r->bar_window);
 917         DNPRINTF(SWM_D_MISC, "bar_setup: bar_window %lu\n", r->bar_window);
 918
 919         if (signal(SIGALRM, bar_signal) == SIG_ERR)
 920                 err(1, "could not install bar_signal");
 921         bar_refresh();
 922 }
 923
 924 void
 925 set_win_state(struct ws_win *win, long state)
 926 {
 927         long                    data[] = {state, None};
 928         XWindowAttributes       wa;
 929
 930         DNPRINTF(SWM_D_EVENT, "set_win_state: window: %lu\n", win->id);
 931
 932         if (win == NULL)
 933                 return;
 934         /* make sure we drain everything */
 935         XSync(display, True);
 936
 937         /* make sure we still exist too */
 938         if (XGetWindowAttributes(display, win->id, &wa) == BadWindow)
 939                 return;
 940
 941         XChangeProperty(display, win->id, astate, astate, 32, PropModeReplace,
 942             (unsigned char *)data, 2);
 943 }
 944
 945 long
 946 getstate(Window w)
 947 {
 948         int                     format, status;
 949         long                    result = -1;
 950         unsigned char           *p = NULL;
 951         unsigned long           n, extra;
 952         Atom                    real;
 953
 954         status = XGetWindowProperty(display, w, astate, 0L, 2L, False, astate,
 955             &real, &format, &n, &extra, (unsigned char **)&p);
 956         if (status != Success)
 957                 return (-1);
 958         if (n != 0)
 959                 result = *((long *)p);
 960         XFree(p);
 961         return (result);
 962 }
 963
 964 void
 965 version(struct swm_region *r, union arg *args)
 966 {
 967         bar_version = !bar_version;
 968         if (bar_version)
 969                 snprintf(bar_vertext, sizeof bar_vertext, "Version: %s CVS: %s",
 970                     SWM_VERSION, cvstag);
 971         else
 972                 strlcpy(bar_vertext, "", sizeof bar_vertext);
 973         bar_update();
 974 }
 975
 976 void
 977 client_msg(struct ws_win *win, Atom a)
 978 {
 979         XClientMessageEvent     cm;
 980
 981         if (win == NULL)
 982                 return;
 983
 984         bzero(&cm, sizeof cm);
 985         cm.type = ClientMessage;
 986         cm.window = win->id;
 987         cm.message_type = aprot;
 988         cm.format = 32;
 989         cm.data.l[0] = a;
 990         cm.data.l[1] = CurrentTime;
 991         XSendEvent(display, win->id, False, 0L, (XEvent *)&cm);
 992 }
 993
 994 void
 995 configreq_win(struct ws_win *win)
 996 {
 997         XConfigureRequestEvent  cr;
 998
 999         if (win == NULL)
1000                 return;
1001
1002         bzero(&cr, sizeof cr);
1003         cr.type = ConfigureRequest;
1004         cr.display = display;
1005         cr.parent = win->id;
1006         cr.window = win->id;
1007         cr.x = win->g.x;
1008         cr.y = win->g.y;
1009         cr.width = win->g.w;
1010         cr.height = win->g.h;
1011         cr.border_width = 1;
1012
1013         XSendEvent(display, win->id, False, StructureNotifyMask, (XEvent *)&cr);
1014 }
1015
1016 void
1017 config_win(struct ws_win *win)
1018 {
1019         XConfigureEvent         ce;
1020
1021         DNPRINTF(SWM_D_MISC, "config_win: win %lu x %d y %d w %d h %d\n",
1022             win->id, win->g.x, win->g.y, win->g.w, win->g.h);
1023
1024         if (win == NULL)
1025                 return;
1026
1027         ce.type = ConfigureNotify;
1028         ce.display = display;
1029         ce.event = win->id;
1030         ce.window = win->id;
1031         ce.x = win->g.x;
1032         ce.y = win->g.y;
1033         ce.width = win->g.w;
1034         ce.height = win->g.h;
1035         ce.border_width = 1; /* XXX store this! */
1036         ce.above = None;
1037         ce.override_redirect = False;
1038         XSendEvent(display, win->id, False, StructureNotifyMask, (XEvent *)&ce);
1039 }
1040
1041 int
1042 count_win(struct workspace *ws, int count_transient)
1043 {
1044         struct ws_win           *win;
1045         int                     count = 0;
1046
1047         TAILQ_FOREACH(win, &ws->winlist, entry) {
1048                 if (count_transient == 0 && win->floating)
1049                         continue;
1050                 if (count_transient == 0 && win->transient)
1051                         continue;
1052                 count++;
1053         }
1054         DNPRINTF(SWM_D_MISC, "count_win: %d\n", count);
1055
1056         return (count);
1057 }
1058
1059 void
1060 quit(struct swm_region *r, union arg *args)
1061 {
1062         DNPRINTF(SWM_D_MISC, "quit\n");
1063         running = 0;
1064 }
1065
1066 void
1067 unmap_window(struct ws_win *win)
1068 {
1069         XWindowAttributes       wa;
1070
1071         if (win == NULL)
1072                 return;
1073
1074         /* make sure we still exist too */
1075         if (XGetWindowAttributes(display, win->id, &wa) == BadWindow)
1076                 return;
1077
1078         /* don't unmap again */
1079         if (wa.map_state == IsUnmapped && getstate(win->id) == IconicState)
1080                 return;
1081
1082         /* java shits itself when windows are set to iconic state */
1083         if (win->java == 0)
1084                 set_win_state(win, IconicState);
1085
1086         XUnmapWindow(display, win->id);
1087 }
1088
1089 void
1090 unmap_all(void)
1091 {
1092         struct ws_win           *win;
1093         int                     i, j;
1094
1095         for (i = 0; i < ScreenCount(display); i++)
1096                 for (j = 0; j < SWM_WS_MAX; j++)
1097                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
1098                                 unmap_window(win);
1099 }
1100
1101 void
1102 fake_keypress(struct ws_win *win, int keysym, int modifiers)
1103 {
1104         XKeyEvent event;
1105
1106         if (win == NULL)
1107                 return;
1108
1109         event.display = display;        /* Ignored, but what the hell */
1110         event.window = win->id;
1111         event.root = win->s->root;
1112         event.subwindow = None;
1113         event.time = CurrentTime;
1114         event.x = win->g.x;
1115         event.y = win->g.y;
1116         event.x_root = 1;
1117         event.y_root = 1;
1118         event.same_screen = True;
1119         event.keycode = XKeysymToKeycode(display, keysym);
1120         event.state = modifiers;
1121
1122         event.type = KeyPress;
1123         XSendEvent(event.display, event.window, True,
1124             KeyPressMask, (XEvent *)&event);
1125
1126         event.type = KeyRelease;
1127         XSendEvent(event.display, event.window, True,
1128             KeyPressMask, (XEvent *)&event);
1129
1130 }
1131
1132 void
1133 restart(struct swm_region *r, union arg *args)
1134 {
1135         DNPRINTF(SWM_D_MISC, "restart: %s\n", start_argv[0]);
1136
1137         /* disable alarm because the following code may not be interrupted */
1138         alarm(0);
1139         if (signal(SIGALRM, SIG_IGN) == SIG_ERR)
1140                 errx(1, "can't disable alarm");
1141
1142         bar_extra_stop();
1143         bar_extra = 1;
1144         unmap_all();
1145         XCloseDisplay(display);
1146         execvp(start_argv[0], start_argv);
1147         fprintf(stderr, "execvp failed\n");
1148         perror(" failed");
1149         quit(NULL, NULL);
1150 }
1151
1152 struct swm_region *
1153 root_to_region(Window root)
1154 {
1155         struct swm_region       *r = NULL;
1156         Window                  rr, cr;
1157         int                     i, x, y, wx, wy;
1158         unsigned int            mask;
1159
1160         for (i = 0; i < ScreenCount(display); i++)
1161                 if (screens[i].root == root)
1162                         break;
1163
1164         if (XQueryPointer(display, screens[i].root,
1165             &rr, &cr, &x, &y, &wx, &wy, &mask) != False) {
1166                 /* choose a region based on pointer location */
1167                 TAILQ_FOREACH(r, &screens[i].rl, entry)
1168                         if (x >= X(r) && x <= X(r) + WIDTH(r) &&
1169                             y >= Y(r) && y <= Y(r) + HEIGHT(r))
1170                                 break;
1171         }
1172
1173         if (r == NULL)
1174                 r = TAILQ_FIRST(&screens[i].rl);
1175
1176         return (r);
1177 }
1178
1179 struct ws_win *
1180 find_window(Window id)
1181 {
1182         struct ws_win           *win;
1183         int                     i, j;
1184
1185         for (i = 0; i < ScreenCount(display); i++)
1186                 for (j = 0; j < SWM_WS_MAX; j++)
1187                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
1188                                 if (id == win->id)
1189                                         return (win);
1190         return (NULL);
1191 }
1192
1193 void
1194 spawn(struct swm_region *r, union arg *args)
1195 {
1196         char                    *ret;
1197         int                     si;
1198
1199         DNPRINTF(SWM_D_MISC, "spawn: %s\n", args->argv[0]);
1200         /*
1201          * The double-fork construct avoids zombie processes and keeps the code
1202          * clean from stupid signal handlers.
1203          */
1204         if (fork() == 0) {
1205                 if (fork() == 0) {
1206                         if (display)
1207                                 close(ConnectionNumber(display));
1208                         setenv("LD_PRELOAD", SWM_LIB, 1);
1209                         if (asprintf(&ret, "%d", r->ws->idx)) {
1210                                 setenv("_SWM_WS", ret, 1);
1211                                 free(ret);
1212                         }
1213                         if (asprintf(&ret, "%d", getpid())) {
1214                                 setenv("_SWM_PID", ret, 1);
1215                                 free(ret);
1216                         }
1217                         setsid();
1218                         /* kill stdin, mplayer, ssh-add etc. need that */
1219                         si = open("/dev/null", O_RDONLY, 0);
1220                         if (si == -1)
1221                                 err(1, "open /dev/null");
1222                         if (dup2(si, 0) == -1)
1223                                 err(1, "dup2 /dev/null");
1224                         execvp(args->argv[0], args->argv);
1225                         fprintf(stderr, "execvp failed\n");
1226                         perror(" failed");
1227                 }
1228                 exit(0);
1229         }
1230 }
1231
1232 void
1233 spawnterm(struct swm_region *r, union arg *args)
1234 {
1235         DNPRINTF(SWM_D_MISC, "spawnterm\n");
1236
1237         if (term_width)
1238                 setenv("_SWM_XTERM_FONTADJ", "", 1);
1239         spawn(r, args);
1240 }
1241
1242 void
1243 unfocus_win(struct ws_win *win)
1244 {
1245         if (win == NULL)
1246                 return;
1247         if (win->ws == NULL)
1248                 return;
1249         if (win->ws->r == NULL)
1250                 return;
1251
1252         if (win->ws->focus == win) {
1253                 win->ws->focus = NULL;
1254                 win->ws->focus_prev = win;
1255         }
1256
1257         grabbuttons(win, 0);
1258         XSetWindowBorder(display, win->id,
1259             win->ws->r->s->c[SWM_S_COLOR_UNFOCUS].color);
1260 }
1261
1262 void
1263 unfocus_all(void)
1264 {
1265         struct ws_win           *win;
1266         int                     i, j;
1267
1268         DNPRINTF(SWM_D_FOCUS, "unfocus_all:\n");
1269
1270         for (i = 0; i < ScreenCount(display); i++)
1271                 for (j = 0; j < SWM_WS_MAX; j++)
1272                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
1273                                 unfocus_win(win);
1274 }
1275
1276 void
1277 focus_win(struct ws_win *win)
1278 {
1279         DNPRINTF(SWM_D_FOCUS, "focus_win: id: %lu\n", win ? win->id : 0);
1280
1281         if (win == NULL)
1282                 return;
1283         if (win->ws == NULL)
1284                 return;
1285
1286         /* use big hammer to make sure it works under all use cases */
1287         unfocus_all();
1288         win->ws->focus = win;
1289
1290         if (win->ws->r != NULL) {
1291                 XSetWindowBorder(display, win->id,
1292                     win->ws->r->s->c[SWM_S_COLOR_FOCUS].color);
1293                 grabbuttons(win, 1);
1294                 if (win->ws->cur_layout->flags & SWM_L_MAPONFOCUS)
1295                         XMapRaised(display, win->id);
1296                 if (win->java == 0)
1297                         XSetInputFocus(display, win->id,
1298                             RevertToPointerRoot, CurrentTime);
1299         }
1300 }
1301
1302 void
1303 switchws(struct swm_region *r, union arg *args)
1304 {
1305         int                     wsid = args->id;
1306         struct swm_region       *this_r, *other_r;
1307         struct ws_win           *win, *winfocus = NULL, *parent = NULL;
1308         struct workspace        *new_ws, *old_ws;
1309
1310         if (!(r && r->s)) {
1311                 fprintf(stderr, "r && r->s failed\n");
1312                 abort();
1313         }
1314         if (wsid < 0 || wsid > SWM_WS_MAX) {
1315                 fprintf(stderr, "illegal wsid\n");
1316                 abort();
1317         }
1318
1319         this_r = r;
1320         old_ws = this_r->ws;
1321         new_ws = &this_r->s->ws[wsid];
1322
1323         DNPRINTF(SWM_D_WS, "switchws screen[%d]:%dx%d+%d+%d: "
1324             "%d -> %d\n", r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r),
1325             old_ws->idx, wsid);
1326
1327         if (new_ws == NULL || old_ws == NULL) {
1328                 fprintf(stderr, "new_ws = %p old_ws = %p\n", new_ws, old_ws);
1329                 abort();
1330         }
1331
1332         if (new_ws == old_ws)
1333                 return;
1334
1335         /* get focus window */
1336         if (new_ws->focus)
1337                 winfocus = new_ws->focus;
1338         else if (new_ws->focus_prev)
1339                 winfocus = new_ws->focus_prev;
1340         else
1341                 winfocus = TAILQ_FIRST(&new_ws->winlist);
1342
1343         other_r = new_ws->r;
1344         if (other_r == NULL) {
1345                 /* if the other workspace is hidden, switch windows */
1346                 if (old_ws->r != NULL)
1347                         old_ws->old_r = old_ws->r;
1348                 old_ws->r = NULL;
1349
1350                 /*
1351                  * Map new windows first if they were here before
1352                  * to minimize ugly blinking.
1353                  */
1354                 if (new_ws->old_r == this_r)
1355                         TAILQ_FOREACH(win, &new_ws->winlist, entry)
1356                                 if (!(win->ws->cur_layout->flags &
1357                                     SWM_L_MAPONFOCUS))
1358                                         XMapRaised(display, win->id);
1359
1360                 TAILQ_FOREACH(win, &old_ws->winlist, entry)
1361                         unmap_window(win);
1362         } else {
1363                 other_r->ws = old_ws;
1364                 old_ws->r = other_r;
1365         }
1366         this_r->ws = new_ws;
1367         new_ws->r = this_r;
1368
1369         ignore_enter = 1;
1370         stack();
1371         if (winfocus) {
1372                 /* make sure we see the parent window */
1373                 if (winfocus->transient) {
1374                         parent = find_window(winfocus->transient);
1375                         if (parent)
1376                                 focus_win(parent);
1377                 }
1378
1379                 focus_win(winfocus);
1380         }
1381         ignore_enter = 0;
1382         bar_update();
1383 }
1384
1385 void
1386 cyclews(struct swm_region *r, union arg *args)
1387 {
1388         union                   arg a;
1389         struct swm_screen       *s = r->s;
1390
1391         DNPRINTF(SWM_D_WS, "cyclews id %d "
1392             "in screen[%d]:%dx%d+%d+%d ws %d\n", args->id,
1393             r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
1394
1395         a.id = r->ws->idx;
1396         do {
1397                 switch (args->id) {
1398                 case SWM_ARG_ID_CYCLEWS_UP:
1399                         if (a.id < SWM_WS_MAX - 1)
1400                                 a.id++;
1401                         else
1402                                 a.id = 0;
1403                         break;
1404                 case SWM_ARG_ID_CYCLEWS_DOWN:
1405                         if (a.id > 0)
1406                                 a.id--;
1407                         else
1408                                 a.id = SWM_WS_MAX - 1;
1409                         break;
1410                 default:
1411                         return;
1412                 };
1413
1414                 if (cycle_empty == 0 && TAILQ_EMPTY(&s->ws[a.id].winlist))
1415                         continue;
1416                 if (cycle_visible == 0 && s->ws[a.id].r != NULL)
1417                         continue;
1418
1419                 switchws(r, &a);
1420         } while (a.id != r->ws->idx);
1421 }
1422
1423 void
1424 cyclescr(struct swm_region *r, union arg *args)
1425 {
1426         struct swm_region       *rr = NULL;
1427         struct workspace        *ws = NULL;
1428         struct ws_win           *winfocus = NULL;
1429         int                     i, x, y;
1430
1431         /* do nothing if we don't have more than one screen */
1432         if (!(ScreenCount(display) > 1 || outputs > 1))
1433                 return;
1434
1435         i = r->s->idx;
1436         switch (args->id) {
1437         case SWM_ARG_ID_CYCLESC_UP:
1438                 rr = TAILQ_NEXT(r, entry);
1439                 if (rr == NULL)
1440                         rr = TAILQ_FIRST(&screens[i].rl);
1441                 break;
1442         case SWM_ARG_ID_CYCLESC_DOWN:
1443                 rr = TAILQ_PREV(r, swm_region_list, entry);
1444                 if (rr == NULL)
1445                         rr = TAILQ_LAST(&screens[i].rl, swm_region_list);
1446                 break;
1447         default:
1448                 return;
1449         };
1450         if (rr == NULL)
1451                 return;
1452
1453         ws = rr->ws;
1454         winfocus = ws->focus;
1455         if (winfocus == NULL)
1456                 winfocus = ws->focus_prev;
1457         if (winfocus) {
1458                 /* use window coordinates */
1459                 x = winfocus->g.x + 1;
1460                 y = winfocus->g.y + 1;
1461         } else {
1462                 /* use region coordinates */
1463                 x = rr->g.x + 1;
1464                 y = rr->g.y + 1 + bar_enabled ? bar_height : 0;
1465         }
1466
1467         unfocus_all();
1468         XSetInputFocus(display, PointerRoot, RevertToPointerRoot, CurrentTime);
1469         XWarpPointer(display, None, rr->s[i].root, 0, 0, 0, 0, x, y);
1470
1471         focus_win(winfocus);
1472 }
1473
1474 void
1475 swapwin(struct swm_region *r, union arg *args)
1476 {
1477         struct ws_win           *target, *source;
1478         struct ws_win           *cur_focus;
1479         struct ws_win_list      *wl;
1480
1481
1482         DNPRINTF(SWM_D_WS, "swapwin id %d "
1483             "in screen %d region %dx%d+%d+%d ws %d\n", args->id,
1484             r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
1485
1486         cur_focus = r->ws->focus;
1487         if (cur_focus == NULL)
1488                 return;
1489
1490         source = cur_focus;
1491         wl = &source->ws->winlist;
1492
1493         switch (args->id) {
1494         case SWM_ARG_ID_SWAPPREV:
1495                 target = TAILQ_PREV(source, ws_win_list, entry);
1496                 TAILQ_REMOVE(wl, cur_focus, entry);
1497                 if (target == NULL)
1498                         TAILQ_INSERT_TAIL(wl, source, entry);
1499                 else
1500                         TAILQ_INSERT_BEFORE(target, source, entry);
1501                 break;
1502         case SWM_ARG_ID_SWAPNEXT:
1503                 target = TAILQ_NEXT(source, entry);
1504                 TAILQ_REMOVE(wl, source, entry);
1505                 if (target == NULL)
1506                         TAILQ_INSERT_HEAD(wl, source, entry);
1507                 else
1508                         TAILQ_INSERT_AFTER(wl, target, source, entry);
1509                 break;
1510         case SWM_ARG_ID_SWAPMAIN:
1511                 target = TAILQ_FIRST(wl);
1512                 if (target == source) {
1513                         if (source->ws->focus_prev != NULL &&
1514                             source->ws->focus_prev != target)
1515
1516                                 source = source->ws->focus_prev;
1517                         else
1518                                 return;
1519                 }
1520                 if (target == NULL || source == NULL)
1521                         return;
1522                 source->ws->focus_prev = target;
1523                 TAILQ_REMOVE(wl, target, entry);
1524                 TAILQ_INSERT_BEFORE(source, target, entry);
1525                 TAILQ_REMOVE(wl, source, entry);
1526                 TAILQ_INSERT_HEAD(wl, source, entry);
1527                 break;
1528         default:
1529                 DNPRINTF(SWM_D_MOVE, "invalid id: %d\n", args->id);
1530                 return;
1531         }
1532
1533         ignore_enter = 1;
1534         stack();
1535 }
1536
1537 void
1538 focus(struct swm_region *r, union arg *args)
1539 {
1540         struct ws_win           *winfocus, *winlostfocus;
1541         struct ws_win_list      *wl;
1542         struct ws_win           *cur_focus;
1543
1544         DNPRINTF(SWM_D_FOCUS, "focus: id %d\n", args->id);
1545
1546         cur_focus = r->ws->focus;
1547         if (cur_focus == NULL)
1548                 return;
1549
1550         wl = &cur_focus->ws->winlist;
1551
1552         winlostfocus = cur_focus;
1553
1554         switch (args->id) {
1555         case SWM_ARG_ID_FOCUSPREV:
1556                 winfocus = TAILQ_PREV(cur_focus, ws_win_list, entry);
1557                 if (winfocus == NULL)
1558                         winfocus = TAILQ_LAST(wl, ws_win_list);
1559                 break;
1560
1561         case SWM_ARG_ID_FOCUSNEXT:
1562                 winfocus = TAILQ_NEXT(cur_focus, entry);
1563                 if (winfocus == NULL)
1564                         winfocus = TAILQ_FIRST(wl);
1565                 break;
1566
1567         case SWM_ARG_ID_FOCUSMAIN:
1568                 winfocus = TAILQ_FIRST(wl);
1569                 if (winfocus == cur_focus)
1570                         winfocus = cur_focus->ws->focus_prev;
1571                 if (winfocus == NULL)
1572                         return;
1573                 break;
1574
1575         default:
1576                 return;
1577         }
1578
1579         if (winfocus == winlostfocus || winfocus == NULL)
1580                 return;
1581
1582         focus_win(winfocus);
1583 }
1584
1585 void
1586 cycle_layout(struct swm_region *r, union arg *args)
1587 {
1588         struct workspace        *ws = r->ws;
1589         struct ws_win           *winfocus, *parent = NULL;
1590
1591         DNPRINTF(SWM_D_EVENT, "cycle_layout: workspace: %d\n", ws->idx);
1592
1593         winfocus = ws->focus;
1594
1595         ws->cur_layout++;
1596         if (ws->cur_layout->l_stack == NULL)
1597                 ws->cur_layout = &layouts[0];
1598
1599         ignore_enter = 1;
1600         stack();
1601         /* make sure we see the parent window */
1602         if (winfocus) {
1603                 if (winfocus->transient)
1604                         parent = find_window(winfocus->transient);
1605                 if (parent)
1606                         focus_win(parent);
1607                 focus_win(winfocus);
1608         }
1609         ignore_enter = 0;
1610 }
1611
1612 void
1613 stack_config(struct swm_region *r, union arg *args)
1614 {
1615         struct workspace        *ws = r->ws;
1616
1617         DNPRINTF(SWM_D_STACK, "stack_config for workspace %d (id %d\n",
1618             args->id, ws->idx);
1619
1620         if (ws->cur_layout->l_config != NULL)
1621                 ws->cur_layout->l_config(ws, args->id);
1622
1623         if (args->id != SWM_ARG_ID_STACKINIT);
1624                 stack();
1625 }
1626
1627 void
1628 stack(void) {
1629         struct swm_geometry     g;
1630         struct swm_region       *r;
1631         int                     i, j;
1632
1633         DNPRINTF(SWM_D_STACK, "stack\n");
1634
1635         for (i = 0; i < ScreenCount(display); i++) {
1636                 j = 0;
1637                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
1638                         DNPRINTF(SWM_D_STACK, "stacking workspace %d "
1639                             "(screen %d, region %d)\n", r->ws->idx, i, j++);
1640
1641                         /* start with screen geometry, adjust for bar */
1642                         if (r == NULL) {
1643                                 fprintf(stderr, "illegal r\n");
1644                                 abort();
1645                         }
1646                         g = r->g;
1647                         g.w -= 2;
1648                         g.h -= 2;
1649                         if (bar_enabled) {
1650                                 g.y += bar_height;
1651                                 g.h -= bar_height;
1652                         }
1653                         if (r->ws == NULL) {
1654                                 fprintf(stderr, "illegal ws\n");
1655                                 abort();
1656                         }
1657                         if (r->ws->cur_layout == NULL) {
1658                                 fprintf(stderr, "illegal cur_layout\n");
1659                                 abort();
1660                         }
1661                         if (r->ws->cur_layout->l_stack == NULL) {
1662                                 fprintf(stderr, "illegal l_stack\n");
1663                                 abort();
1664                         }
1665                         r->ws->cur_layout->l_stack(r->ws, &g);
1666                 }
1667         }
1668         if (font_adjusted)
1669                 font_adjusted--;
1670 }
1671
1672 void
1673 stack_floater(struct ws_win *win, struct swm_region *r)
1674 {
1675         unsigned int            mask;
1676         XWindowChanges          wc;
1677
1678         if (win == NULL)
1679                 return;
1680
1681         bzero(&wc, sizeof wc);
1682         mask = CWX | CWY | CWBorderWidth | CWWidth | CWHeight;
1683         if ((win->quirks & SWM_Q_FULLSCREEN) && (win->g.w == WIDTH(r)) &&
1684             (win->g.h == HEIGHT(r)))
1685                 wc.border_width = 0;
1686         else
1687                 wc.border_width = 1;
1688         if (win->transient && (win->quirks & SWM_Q_TRANSSZ)) {
1689                 win->g.w = (double)WIDTH(r) * dialog_ratio;
1690                 win->g.h = (double)HEIGHT(r) * dialog_ratio;
1691         }
1692         wc.width = win->g.w;
1693         wc.height = win->g.h;
1694         if (win->manual) {
1695                 wc.x = win->g.x;
1696                 wc.y = win->g.y;
1697         } else {
1698                 wc.x = (WIDTH(r) - win->g.w) / 2;
1699                 wc.y = (HEIGHT(r) - win->g.h) / 2;
1700         }
1701
1702         /* adjust for region */
1703         wc.x += r->g.x;
1704         wc.y += r->g.y;
1705
1706         DNPRINTF(SWM_D_STACK, "stack_floater: win %lu x %d y %d w %d h %d\n",
1707             win->id, wc.x, wc.y, wc.width, wc.height);
1708
1709         XConfigureWindow(display, win->id, mask, &wc);
1710 }
1711
1712 /*
1713  * Send keystrokes to terminal to decrease/increase the font size as the
1714  * window size changes.
1715  */
1716 void
1717 adjust_font(struct ws_win *win)
1718 {
1719         if (!(win->quirks & SWM_Q_XTERM_FONTADJ) ||
1720             win->floating || win->transient)
1721                 return;
1722
1723         if (win->sh.width_inc && win->last_inc != win->sh.width_inc &&
1724             win->g.w / win->sh.width_inc < term_width &&
1725             win->font_steps < SWM_MAX_FONT_STEPS) {
1726                 win->font_size_boundary[win->font_steps] =
1727                     (win->sh.width_inc * term_width) + win->sh.base_width;
1728                 win->font_steps++;
1729                 font_adjusted++;
1730                 win->last_inc = win->sh.width_inc;
1731                 fake_keypress(win, XK_KP_Subtract, ShiftMask);
1732         } else if (win->font_steps && win->last_inc != win->sh.width_inc &&
1733             win->g.w > win->font_size_boundary[win->font_steps - 1]) {
1734                 win->font_steps--;
1735                 font_adjusted++;
1736                 win->last_inc = win->sh.width_inc;
1737                 fake_keypress(win, XK_KP_Add, ShiftMask);
1738         }
1739 }
1740
1741 #define SWAPXY(g)       do {                            \
1742         int tmp;                                        \
1743         tmp = (g)->y; (g)->y = (g)->x; (g)->x = tmp;    \
1744         tmp = (g)->h; (g)->h = (g)->w; (g)->w = tmp;    \
1745 } while (0)
1746 void
1747 stack_master(struct workspace *ws, struct swm_geometry *g, int rot, int flip)
1748 {
1749         XWindowChanges          wc;
1750         struct swm_geometry     win_g, r_g = *g;
1751         struct ws_win           *win;
1752         int                     i, j, s, stacks;
1753         int                     w_inc = 1, h_inc, w_base = 1, h_base;
1754         int                     hrh, extra = 0, h_slice, last_h = 0;
1755         int                     split, colno, winno, mwin, msize, mscale;
1756         int                     remain, missing, v_slice, reconfigure;
1757         unsigned int            mask;
1758
1759         DNPRINTF(SWM_D_STACK, "stack_master: workspace: %d\n rot=%s flip=%s",
1760             ws->idx, rot ? "yes" : "no", flip ? "yes" : "no");
1761
1762         winno = count_win(ws, 0);
1763         if (winno == 0 && count_win(ws, 1) == 0)
1764                 return;
1765
1766         TAILQ_FOREACH(win, &ws->winlist, entry)
1767                 if (win->transient == 0 && win->floating == 0)
1768                         break;
1769
1770         if (win == NULL)
1771                 goto notiles;
1772
1773         if (rot) {
1774                 w_inc = win->sh.width_inc;
1775                 w_base = win->sh.base_width;
1776                 mwin = ws->l_state.horizontal_mwin;
1777                 mscale = ws->l_state.horizontal_msize;
1778                 stacks = ws->l_state.horizontal_stacks;
1779                 SWAPXY(&r_g);
1780         } else {
1781                 w_inc = win->sh.height_inc;
1782                 w_base = win->sh.base_height;
1783                 mwin = ws->l_state.vertical_mwin;
1784                 mscale = ws->l_state.vertical_msize;
1785                 stacks = ws->l_state.vertical_stacks;
1786         }
1787         win_g = r_g;
1788
1789         if (stacks > winno - mwin)
1790                 stacks = winno - mwin;
1791         if (stacks < 1)
1792                 stacks = 1;
1793
1794         h_slice = r_g.h / SWM_H_SLICE;
1795         if (mwin && winno > mwin) {
1796                 v_slice = r_g.w / SWM_V_SLICE;
1797
1798                 split = mwin;
1799                 colno = split;
1800                 win_g.w = v_slice * mscale;
1801
1802                 if (w_inc > 1 && w_inc < v_slice) {
1803                         /* adjust for window's requested size increment */
1804                         remain = (win_g.w - w_base) % w_inc;
1805                         missing = w_inc - remain;
1806                         win_g.w -= remain;
1807                         extra += remain;
1808                 }
1809
1810                 msize = win_g.w;
1811                 if (flip)
1812                         win_g.x += r_g.w - msize;
1813         } else {
1814                 msize = -2;
1815                 colno = split = winno / stacks;
1816                 win_g.w = ((r_g.w - (stacks * 2) + 2) / stacks);
1817         }
1818         hrh = r_g.h / colno;
1819         extra = r_g.h - (colno * hrh);
1820         win_g.h = hrh - 2;
1821
1822         /*  stack all the tiled windows */
1823         i = j = 0, s = stacks;
1824         TAILQ_FOREACH(win, &ws->winlist, entry) {
1825                 if (win->transient != 0 || win->floating != 0)
1826                         continue;
1827
1828                 if (split && i == split) {
1829                         colno = (winno - mwin) / stacks;
1830                         if (s <= (winno - mwin) % stacks)
1831                                 colno++;
1832                         split = split + colno;
1833                         hrh = (r_g.h / colno);
1834                         extra = r_g.h - (colno * hrh);
1835                         if (flip)
1836                                 win_g.x = r_g.x;
1837                         else
1838                                 win_g.x += win_g.w + 2;
1839                         win_g.w = (r_g.w - msize - (stacks * 2)) / stacks;
1840                         if (s == 1)
1841                                 win_g.w += (r_g.w - msize - (stacks * 2)) %
1842                                     stacks;
1843                         s--;
1844                         j = 0;
1845                 }
1846                 win_g.h = hrh - 2;
1847                 if (rot) {
1848                         h_inc = win->sh.width_inc;
1849                         h_base = win->sh.base_width;
1850                 } else {
1851                         h_inc = win->sh.height_inc;
1852                         h_base = win->sh.base_height;
1853                 }
1854                 if (j == colno - 1) {
1855                         win_g.h = hrh + extra;
1856                 } else if (h_inc > 1 && h_inc < h_slice) {
1857                         /* adjust for window's requested size increment */
1858                         remain = (win_g.h - h_base) % h_inc;
1859                         missing = h_inc - remain;
1860
1861                         if (missing <= extra || j == 0) {
1862                                 extra -= missing;
1863                                 win_g.h += missing;
1864                         } else {
1865                                 win_g.h -= remain;
1866                                 extra += remain;
1867                         }
1868                 }
1869
1870                 if (j == 0)
1871                         win_g.y = r_g.y;
1872                 else
1873                         win_g.y += last_h + 2;
1874
1875                 bzero(&wc, sizeof wc);
1876                 wc.border_width = 1;
1877                 reconfigure = 0;
1878                 if (rot) {
1879                         if (win->g.x != win_g.y || win->g.y != win_g.x ||
1880                             win->g.w != win_g.h || win->g.h != win_g.w) {
1881                                 reconfigure = 1;
1882                                 win->g.x = wc.x = win_g.y;
1883                                 win->g.y = wc.y = win_g.x;
1884                                 win->g.w = wc.width = win_g.h;
1885                                 win->g.h = wc.height = win_g.w;
1886                         }
1887                 } else {
1888                         if (win->g.x != win_g.x || win->g.y != win_g.y ||
1889                             win->g.w != win_g.w || win->g.h != win_g.h) {
1890                                 reconfigure = 1;
1891                                 win->g.x = wc.x = win_g.x;
1892                                 win->g.y = wc.y = win_g.y;
1893                                 win->g.w = wc.width = win_g.w;
1894                                 win->g.h = wc.height = win_g.h;
1895                         }
1896                 }
1897                 if (reconfigure) {
1898                         adjust_font(win);
1899                         mask = CWX | CWY | CWWidth | CWHeight | CWBorderWidth;
1900                         XConfigureWindow(display, win->id, mask, &wc);
1901                         configreq_win(win);
1902                 }
1903                 XMapRaised(display, win->id);
1904
1905                 last_h = win_g.h;
1906                 i++;
1907                 j++;
1908         }
1909
1910  notiles:
1911         /* now, stack all the floaters and transients */
1912         TAILQ_FOREACH(win, &ws->winlist, entry) {
1913                 if (win->transient == 0 && win->floating == 0)
1914                         continue;
1915
1916                 stack_floater(win, ws->r);
1917                 XMapRaised(display, win->id);
1918         }
1919 }
1920
1921 void
1922 vertical_config(struct workspace *ws, int id)
1923 {
1924         DNPRINTF(SWM_D_STACK, "vertical_resize: workspace: %d\n", ws->idx);
1925
1926         switch (id) {
1927         case SWM_ARG_ID_STACKRESET:
1928         case SWM_ARG_ID_STACKINIT:
1929                 ws->l_state.vertical_msize = SWM_V_SLICE / 2;
1930                 ws->l_state.vertical_mwin = 1;
1931                 ws->l_state.vertical_stacks = 1;
1932                 break;
1933         case SWM_ARG_ID_MASTERSHRINK:
1934                 if (ws->l_state.vertical_msize > 1)
1935                         ws->l_state.vertical_msize--;
1936                 break;
1937         case SWM_ARG_ID_MASTERGROW:
1938                 if (ws->l_state.vertical_msize < SWM_V_SLICE - 1)
1939                         ws->l_state.vertical_msize++;
1940                 break;
1941         case SWM_ARG_ID_MASTERADD:
1942                 ws->l_state.vertical_mwin++;
1943                 break;
1944         case SWM_ARG_ID_MASTERDEL:
1945                 if (ws->l_state.vertical_mwin > 0)
1946                         ws->l_state.vertical_mwin--;
1947                 break;
1948         case SWM_ARG_ID_STACKINC:
1949                 ws->l_state.vertical_stacks++;
1950                 break;
1951         case SWM_ARG_ID_STACKDEC:
1952                 if (ws->l_state.vertical_stacks > 1)
1953                         ws->l_state.vertical_stacks--;
1954                 break;
1955         default:
1956                 return;
1957         }
1958 }
1959
1960 void
1961 vertical_stack(struct workspace *ws, struct swm_geometry *g)
1962 {
1963         DNPRINTF(SWM_D_STACK, "vertical_stack: workspace: %d\n", ws->idx);
1964
1965         stack_master(ws, g, 0, 0);
1966 }
1967
1968 void
1969 horizontal_config(struct workspace *ws, int id)
1970 {
1971         DNPRINTF(SWM_D_STACK, "horizontal_config: workspace: %d\n", ws->idx);
1972
1973         switch (id) {
1974         case SWM_ARG_ID_STACKRESET:
1975         case SWM_ARG_ID_STACKINIT:
1976                 ws->l_state.horizontal_mwin = 1;
1977                 ws->l_state.horizontal_msize = SWM_H_SLICE / 2;
1978                 ws->l_state.horizontal_stacks = 1;
1979                 break;
1980         case SWM_ARG_ID_MASTERSHRINK:
1981                 if (ws->l_state.horizontal_msize > 1)
1982                         ws->l_state.horizontal_msize--;
1983                 break;
1984         case SWM_ARG_ID_MASTERGROW:
1985                 if (ws->l_state.horizontal_msize < SWM_H_SLICE - 1)
1986                         ws->l_state.horizontal_msize++;
1987                 break;
1988         case SWM_ARG_ID_MASTERADD:
1989                 ws->l_state.horizontal_mwin++;
1990                 break;
1991         case SWM_ARG_ID_MASTERDEL:
1992                 if (ws->l_state.horizontal_mwin > 0)
1993                         ws->l_state.horizontal_mwin--;
1994                 break;
1995         case SWM_ARG_ID_STACKINC:
1996                 ws->l_state.horizontal_stacks++;
1997                 break;
1998         case SWM_ARG_ID_STACKDEC:
1999                 if (ws->l_state.horizontal_stacks > 1)
2000                         ws->l_state.horizontal_stacks--;
2001                 break;
2002         default:
2003                 return;
2004         }
2005 }
2006
2007 void
2008 horizontal_stack(struct workspace *ws, struct swm_geometry *g)
2009 {
2010         DNPRINTF(SWM_D_STACK, "vertical_stack: workspace: %d\n", ws->idx);
2011
2012         stack_master(ws, g, 1, 0);
2013 }
2014
2015 /* fullscreen view */
2016 void
2017 max_stack(struct workspace *ws, struct swm_geometry *g)
2018 {
2019         XWindowChanges          wc;
2020         struct swm_geometry     gg = *g;
2021         struct ws_win           *win, *wintrans = NULL;
2022         unsigned int            mask;
2023         int                     winno;
2024
2025         DNPRINTF(SWM_D_STACK, "max_stack: workspace: %d\n", ws->idx);
2026
2027         if (ws == NULL)
2028                 return;
2029
2030         winno = count_win(ws, 0);
2031         if (winno == 0 && count_win(ws, 1) == 0)
2032                 return;
2033
2034         TAILQ_FOREACH(win, &ws->winlist, entry) {
2035                 if (win->transient) {
2036                         wintrans = win;
2037                         continue;
2038                 }
2039
2040                 /* only reconfigure if necessary */
2041                 if (win->g.x != gg.x || win->g.y != gg.y || win->g.w != gg.w ||
2042                     win->g.h != gg.h) {
2043                         bzero(&wc, sizeof wc);
2044                         wc.border_width = 1;
2045                         win->g.x = wc.x = gg.x;
2046                         win->g.y = wc.y = gg.y;
2047                         win->g.w = wc.width = gg.w;
2048                         win->g.h = wc.height = gg.h;
2049                         mask = CWX | CWY | CWWidth | CWHeight | CWBorderWidth;
2050                         XConfigureWindow(display, win->id, mask, &wc);
2051                         configreq_win(win);
2052                 }
2053                 /* unmap only if we don't have multi screen */
2054                 if (win != ws->focus)
2055                         if (!(ScreenCount(display) > 1 || outputs > 1))
2056                                 unmap_window(win);
2057         }
2058
2059         /* put the last transient on top */
2060         if (wintrans) {
2061                 stack_floater(wintrans, ws->r);
2062                 focus_win(wintrans); /* override */
2063         }
2064 }
2065
2066 void
2067 send_to_ws(struct swm_region *r, union arg *args)
2068 {
2069         int                     wsid = args->id;
2070         struct ws_win           *win = win, *winfocus = NULL;
2071         struct workspace        *ws, *nws;
2072         Atom                    ws_idx_atom = 0;
2073         unsigned char           ws_idx_str[SWM_PROPLEN];
2074
2075         if (r && r->ws)
2076                 win = r->ws->focus;
2077         else
2078                 return;
2079         if (win == NULL)
2080                 return;
2081
2082         DNPRINTF(SWM_D_MOVE, "send_to_ws: win: %lu\n", win->id);
2083
2084         ws = win->ws;
2085         nws = &win->s->ws[wsid];
2086
2087         /* find a window to focus */
2088         winfocus = TAILQ_PREV(win, ws_win_list, entry);
2089         if (TAILQ_FIRST(&ws->winlist) == win)
2090                 winfocus = TAILQ_NEXT(win, entry);
2091         else {
2092                 winfocus = TAILQ_PREV(win, ws_win_list, entry);
2093                 if (winfocus == NULL)
2094                         winfocus = TAILQ_LAST(&ws->winlist, ws_win_list);
2095         }
2096         /* out of windows in ws so focus on nws instead if we multi screen */
2097         if (winfocus == NULL)
2098                 if (ScreenCount(display) > 1 || outputs > 1)
2099                         winfocus = win;
2100
2101         unmap_window(win);
2102         TAILQ_REMOVE(&ws->winlist, win, entry);
2103         TAILQ_INSERT_TAIL(&nws->winlist, win, entry);
2104         win->ws = nws;
2105
2106         /* Try to update the window's workspace property */
2107         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
2108         if (ws_idx_atom &&
2109             snprintf(ws_idx_str, SWM_PROPLEN, "%d", nws->idx) < SWM_PROPLEN) {
2110                 DNPRINTF(SWM_D_PROP, "setting property _SWM_WS to %s\n",
2111                     ws_idx_str);
2112                 XChangeProperty(display, win->id, ws_idx_atom, XA_STRING, 8,
2113                     PropModeReplace, ws_idx_str, SWM_PROPLEN);
2114         }
2115
2116         if (count_win(nws, 1) == 1)
2117                 nws->focus = win;
2118
2119         stack();
2120         if (winfocus)
2121                 focus_win(winfocus);
2122 }
2123
2124 void
2125 wkill(struct swm_region *r, union arg *args)
2126 {
2127         DNPRINTF(SWM_D_MISC, "wkill %d\n", args->id);
2128
2129         if(r->ws->focus == NULL)
2130                 return;
2131
2132         if (args->id == SWM_ARG_ID_KILLWINDOW)
2133                 XKillClient(display, r->ws->focus->id);
2134         else
2135                 if (r->ws->focus->can_delete)
2136                         client_msg(r->ws->focus, adelete);
2137 }
2138
2139 void
2140 floating_toggle(struct swm_region *r, union arg *args)
2141 {
2142         struct ws_win   *win = r->ws->focus;
2143
2144         if (win == NULL)
2145                 return;
2146
2147         win->floating = !win->floating;
2148         win->manual = 0;
2149         stack();
2150         focus_win(win);
2151 }
2152
2153 void
2154 resize_window(struct ws_win *win, int center)
2155 {
2156         unsigned int            mask;
2157         XWindowChanges          wc;
2158         struct swm_region       *r;
2159
2160         r = root_to_region(win->wa.root);
2161         bzero(&wc, sizeof wc);
2162         mask = CWBorderWidth | CWWidth | CWHeight;
2163         wc.border_width = 1;
2164         wc.width = win->g.w;
2165         wc.height = win->g.h;
2166         if (center == SWM_ARG_ID_CENTER) {
2167                 wc.x = (WIDTH(r) - win->g.w) / 2;
2168                 wc.y = (HEIGHT(r) - win->g.h) / 2;
2169                 mask |= CWX | CWY;
2170         }
2171
2172         DNPRINTF(SWM_D_STACK, "resize_window: win %lu x %d y %d w %d h %d\n",
2173             win->id, wc.x, wc.y, wc.width, wc.height);
2174
2175         XConfigureWindow(display, win->id, mask, &wc);
2176         config_win(win);
2177 }
2178
2179 void
2180 resize(struct ws_win *win, union arg *args)
2181 {
2182         XEvent                  ev;
2183         Time                    time = 0;
2184
2185         DNPRINTF(SWM_D_MOUSE, "resize: win %lu floating %d trans %d\n",
2186             win->id, win->floating, win->transient);
2187
2188         if (!(win->transient != 0 || win->floating != 0))
2189                 return;
2190
2191         if (XGrabPointer(display, win->id, False, MOUSEMASK, GrabModeAsync,
2192             GrabModeAsync, None, None /* cursor */, CurrentTime) != GrabSuccess)
2193                 return;
2194         XWarpPointer(display, None, win->id, 0, 0, 0, 0, win->g.w, win->g.h);
2195         do {
2196                 XMaskEvent(display, MOUSEMASK | ExposureMask |
2197                     SubstructureRedirectMask, &ev);
2198                 switch(ev.type) {
2199                 case ConfigureRequest:
2200                 case Expose:
2201                 case MapRequest:
2202                         handler[ev.type](&ev);
2203                         break;
2204                 case MotionNotify:
2205                         if (ev.xmotion.x <= 1)
2206                                 ev.xmotion.x = 1;
2207                         if (ev.xmotion.y <= 1)
2208                                 ev.xmotion.y = 1;
2209                         win->g.w = ev.xmotion.x;
2210                         win->g.h = ev.xmotion.y;
2211
2212                         /* not free, don't sync more than 60 times / second */
2213                         if ((ev.xmotion.time - time) > (1000 / 60) ) {
2214                                 time = ev.xmotion.time;
2215                                 XSync(display, False);
2216                                 resize_window(win, args->id);
2217                         }
2218                         break;
2219                 }
2220         } while (ev.type != ButtonRelease);
2221         if (time) {
2222                 XSync(display, False);
2223                 resize_window(win, args->id);
2224         }
2225         XWarpPointer(display, None, win->id, 0, 0, 0, 0, win->g.w - 1,
2226             win->g.h - 1);
2227         XUngrabPointer(display, CurrentTime);
2228
2229         /* drain events */
2230         while (XCheckMaskEvent(display, EnterWindowMask, &ev));
2231 }
2232
2233 void
2234 move_window(struct ws_win *win)
2235 {
2236         unsigned int            mask;
2237         XWindowChanges          wc;
2238         struct swm_region       *r;
2239
2240         r = root_to_region(win->wa.root);
2241         bzero(&wc, sizeof wc);
2242         mask = CWX | CWY;
2243         wc.x = win->g.x;
2244         wc.y = win->g.y;
2245
2246         DNPRINTF(SWM_D_STACK, "move_window: win %lu x %d y %d w %d h %d\n",
2247             win->id, wc.x, wc.y, wc.width, wc.height);
2248
2249         XConfigureWindow(display, win->id, mask, &wc);
2250         config_win(win);
2251 }
2252
2253 void
2254 move(struct ws_win *win, union arg *args)
2255 {
2256         XEvent                  ev;
2257         Time                    time = 0;
2258         int                     restack = 0;
2259
2260         DNPRINTF(SWM_D_MOUSE, "move: win %lu floating %d trans %d\n",
2261             win->id, win->floating, win->transient);
2262
2263         if (win->floating == 0) {
2264                 win->floating = 1;
2265                 win->manual = 1;
2266                 restack = 1;
2267         }
2268
2269         if (XGrabPointer(display, win->id, False, MOUSEMASK, GrabModeAsync,
2270             GrabModeAsync, None, None /* cursor */, CurrentTime) != GrabSuccess)
2271                 return;
2272         XWarpPointer(display, None, win->id, 0, 0, 0, 0, 0, 0);
2273         do {
2274                 XMaskEvent(display, MOUSEMASK | ExposureMask |
2275                     SubstructureRedirectMask, &ev);
2276                 switch(ev.type) {
2277                 case ConfigureRequest:
2278                 case Expose:
2279                 case MapRequest:
2280                         handler[ev.type](&ev);
2281                         break;
2282                 case MotionNotify:
2283                         win->g.x = ev.xmotion.x_root;
2284                         win->g.y = ev.xmotion.y_root;
2285
2286                         /* not free, don't sync more than 60 times / second */
2287                         if ((ev.xmotion.time - time) > (1000 / 60) ) {
2288                                 time = ev.xmotion.time;
2289                                 XSync(display, False);
2290                                 move_window(win);
2291                         }
2292                         break;
2293                 }
2294         } while (ev.type != ButtonRelease);
2295         if (time) {
2296                 XSync(display, False);
2297                 move_window(win);
2298         }
2299         XWarpPointer(display, None, win->id, 0, 0, 0, 0, 0, 0);
2300         XUngrabPointer(display, CurrentTime);
2301         if (restack)
2302                 stack();
2303
2304         /* drain events */
2305         while (XCheckMaskEvent(display, EnterWindowMask, &ev));
2306 }
2307
2308 /* key definitions */
2309 void
2310 dummykeyfunc(struct swm_region *r, union arg *args)
2311 {
2312 };
2313
2314 void
2315 legacyfunc(struct swm_region *r, union arg *args)
2316 {
2317 };
2318
2319 struct keyfunc {
2320         char                    name[SWM_FUNCNAME_LEN];
2321         void                    (*func)(struct swm_region *r, union arg *);
2322         union arg               args;
2323 } keyfuncs[kf_invalid + 1] = {
2324         /* name                 function        argument */
2325         { "cycle_layout",       cycle_layout,   {0} },
2326         { "stack_reset",        stack_config,   {.id = SWM_ARG_ID_STACKRESET} },
2327         { "master_shrink",      stack_config,   {.id = SWM_ARG_ID_MASTERSHRINK} },
2328         { "master_grow",        stack_config,   {.id = SWM_ARG_ID_MASTERGROW} },
2329         { "master_add",         stack_config,   {.id = SWM_ARG_ID_MASTERADD} },
2330         { "master_del",         stack_config,   {.id = SWM_ARG_ID_MASTERDEL} },
2331         { "stack_inc",          stack_config,   {.id = SWM_ARG_ID_STACKINC} },
2332         { "stack_dec",          stack_config,   {.id = SWM_ARG_ID_STACKDEC} },
2333         { "swap_main",          swapwin,        {.id = SWM_ARG_ID_SWAPMAIN} },
2334         { "focus_next",         focus,          {.id = SWM_ARG_ID_FOCUSNEXT} },
2335         { "focus_prev",         focus,          {.id = SWM_ARG_ID_FOCUSPREV} },
2336         { "swap_next",          swapwin,        {.id = SWM_ARG_ID_SWAPNEXT} },
2337         { "swap_prev",          swapwin,        {.id = SWM_ARG_ID_SWAPPREV} },
2338         { "spawn_term",         spawnterm,      {.argv = spawn_term} },
2339         { "spawn_menu",         legacyfunc,     {0} },
2340         { "quit",               quit,           {0} },
2341         { "restart",            restart,        {0} },
2342         { "focus_main",         focus,          {.id = SWM_ARG_ID_FOCUSMAIN} },
2343         { "ws_1",               switchws,       {.id = 0} },
2344         { "ws_2",               switchws,       {.id = 1} },
2345         { "ws_3",               switchws,       {.id = 2} },
2346         { "ws_4",               switchws,       {.id = 3} },
2347         { "ws_5",               switchws,       {.id = 4} },
2348         { "ws_6",               switchws,       {.id = 5} },
2349         { "ws_7",               switchws,       {.id = 6} },
2350         { "ws_8",               switchws,       {.id = 7} },
2351         { "ws_9",               switchws,       {.id = 8} },
2352         { "ws_10",              switchws,       {.id = 9} },
2353         { "ws_next",            cyclews,        {.id = SWM_ARG_ID_CYCLEWS_UP} },
2354         { "ws_prev",            cyclews,        {.id = SWM_ARG_ID_CYCLEWS_DOWN} },
2355         { "screen_next",        cyclescr,       {.id = SWM_ARG_ID_CYCLESC_UP} },
2356         { "screen_prev",        cyclescr,       {.id = SWM_ARG_ID_CYCLESC_DOWN} },
2357         { "mvws_1",             send_to_ws,     {.id = 0} },
2358         { "mvws_2",             send_to_ws,     {.id = 1} },
2359         { "mvws_3",             send_to_ws,     {.id = 2} },
2360         { "mvws_4",             send_to_ws,     {.id = 3} },
2361         { "mvws_5",             send_to_ws,     {.id = 4} },
2362         { "mvws_6",             send_to_ws,     {.id = 5} },
2363         { "mvws_7",             send_to_ws,     {.id = 6} },
2364         { "mvws_8",             send_to_ws,     {.id = 7} },
2365         { "mvws_9",             send_to_ws,     {.id = 8} },
2366         { "mvws_10",            send_to_ws,     {.id = 9} },
2367         { "bar_toggle",         bar_toggle,     {0} },
2368         { "wind_kill",          wkill,          {.id = SWM_ARG_ID_KILLWINDOW} },
2369         { "wind_del",           wkill,          {.id = SWM_ARG_ID_DELETEWINDOW} },
2370         { "screenshot_all",     legacyfunc,     {0} },
2371         { "screenshot_wind",    legacyfunc,     {0} },
2372         { "float_toggle",       floating_toggle,{0} },
2373         { "version",            version,        {0} },
2374         { "spawn_lock",         legacyfunc,     {0} },
2375         { "spawn_initscr",      legacyfunc,     {0} },
2376         { "spawn_custom",       dummykeyfunc,   {0} },
2377         { "invalid key func",   NULL,           {0} },
2378 };
2379 struct key {
2380         unsigned int            mod;
2381         KeySym                  keysym;
2382         enum keyfuncid          funcid;
2383         char                    *spawn_name;
2384 };
2385 int                             keys_size = 0, keys_length = 0;
2386 struct key                      *keys = NULL;
2387
2388 /* mouse */
2389 enum { client_click, root_click };
2390 struct button {
2391         unsigned int            action;
2392         unsigned int            mask;
2393         unsigned int            button;
2394         void                    (*func)(struct ws_win *, union arg *);
2395         union arg               args;
2396 } buttons[] = {
2397           /* action     key             mouse button    func    args */
2398         { client_click, MODKEY,         Button3,        resize, {.id = SWM_ARG_ID_DONTCENTER} },
2399         { client_click, MODKEY | ShiftMask, Button3,    resize, {.id = SWM_ARG_ID_CENTER} },
2400         { client_click, MODKEY,         Button1,        move,   {0} },
2401 };
2402
2403 void
2404 update_modkey(unsigned int mod)
2405 {
2406         int                     i;
2407
2408         mod_key = mod;
2409         for (i = 0; i < keys_length; i++)
2410                 if (keys[i].mod & ShiftMask)
2411                         keys[i].mod = mod | ShiftMask;
2412                 else
2413                         keys[i].mod = mod;
2414
2415         for (i = 0; i < LENGTH(buttons); i++)
2416                 if (buttons[i].mask & ShiftMask)
2417                         buttons[i].mask = mod | ShiftMask;
2418                 else
2419                         buttons[i].mask = mod;
2420 }
2421
2422 /* spawn */
2423 struct spawn_prog {
2424         char                    *name;
2425         int                     argc;
2426         char                    **argv;
2427 };
2428
2429 int                             spawns_size = 0, spawns_length = 0;
2430 struct spawn_prog               *spawns = NULL;
2431
2432 void
2433 spawn_custom(struct swm_region *r, union arg *args, char *spawn_name)
2434 {
2435         union arg               a;
2436         struct spawn_prog       *prog = NULL;
2437         int                     i;
2438         char                    *ap, **real_args;
2439
2440         DNPRINTF(SWM_D_SPAWN, "spawn_custom %s\n", spawn_name);
2441
2442         /* find program */
2443         for (i = 0; i < spawns_length; i++) {
2444                 if (!strcasecmp(spawn_name, spawns[i].name))
2445                         prog = &spawns[i];
2446         }
2447         if (prog == NULL) {
2448                 fprintf(stderr, "spawn_custom: program %s not found\n",
2449                     spawn_name);
2450                 return;
2451         }
2452
2453         /* make room for expanded args */
2454         if ((real_args = calloc(prog->argc + 1, sizeof(char *))) == NULL)
2455                 err(1, "spawn_custom: calloc real_args");
2456
2457         /* expand spawn_args into real_args */
2458         for (i = 0; i < prog->argc; i++) {
2459                 ap = prog->argv[i];
2460                 DNPRINTF(SWM_D_SPAWN, "spawn_custom: raw arg = %s\n", ap);
2461                 if (!strcasecmp(ap, "$bar_border")) {
2462                         if ((real_args[i] =
2463                             strdup(r->s->c[SWM_S_COLOR_BAR_BORDER].name))
2464                             == NULL)
2465                                 err(1,  "spawn_custom border color");
2466                 } else if (!strcasecmp(ap, "$bar_color")) {
2467                         if ((real_args[i] =
2468                             strdup(r->s->c[SWM_S_COLOR_BAR].name))
2469                             == NULL)
2470                                 err(1, "spawn_custom bar color");
2471                 } else if (!strcasecmp(ap, "$bar_font")) {
2472                         if ((real_args[i] = strdup(bar_fonts[bar_fidx]))
2473                             == NULL)
2474                                 err(1, "spawn_custom bar fonts");
2475                 } else if (!strcasecmp(ap, "$bar_font_color")) {
2476                         if ((real_args[i] =
2477                             strdup(r->s->c[SWM_S_COLOR_BAR_FONT].name))
2478                             == NULL)
2479                                 err(1, "spawn_custom color font");
2480                 } else if (!strcasecmp(ap, "$color_focus")) {
2481                         if ((real_args[i] =
2482                             strdup(r->s->c[SWM_S_COLOR_FOCUS].name))
2483                             == NULL)
2484                                 err(1, "spawn_custom color focus");
2485                 } else if (!strcasecmp(ap, "$color_unfocus")) {
2486                         if ((real_args[i] =
2487                             strdup(r->s->c[SWM_S_COLOR_UNFOCUS].name))
2488                             == NULL)
2489                                 err(1, "spawn_custom color unfocus");
2490                 } else {
2491                         /* no match --> copy as is */
2492                         if ((real_args[i] = strdup(ap)) == NULL)
2493                                 err(1, "spawn_custom strdup(ap)");
2494                 }
2495                 DNPRINTF(SWM_D_SPAWN, "spawn_custom: cooked arg = %s\n",
2496                     real_args[i]);
2497         }
2498
2499 #ifdef SWM_DEBUG
2500         if ((swm_debug & SWM_D_SPAWN) != 0) {
2501                 fprintf(stderr, "spawn_custom: result = ");
2502                 for (i = 0; i < prog->argc; i++)
2503                         fprintf(stderr, "\"%s\" ", real_args[i]);
2504                 fprintf(stderr, "\n");
2505         }
2506 #endif
2507
2508         a.argv = real_args;
2509         spawn(r, &a);
2510         for (i = 0; i < prog->argc; i++)
2511                 free(real_args[i]);
2512         free(real_args);
2513 }
2514
2515 void
2516 setspawn(struct spawn_prog *prog)
2517 {
2518         int                     i, j;
2519
2520         if (prog == NULL || prog->name == NULL)
2521                 return;
2522
2523         /* find existing */
2524         for (i = 0; i < spawns_length; i++) {
2525                 if (!strcmp(spawns[i].name, prog->name)) {
2526                         /* found */
2527                         if (prog->argv == NULL) {
2528                                 /* delete */
2529                                 DNPRINTF(SWM_D_SPAWN,
2530                                     "setspawn: delete #%d %s\n",
2531                                     i, spawns[i].name);
2532                                 free(spawns[i].name);
2533                                 for (j = 0; j < spawns[i].argc; j++)
2534                                         free(spawns[i].argv[j]);
2535                                 free(spawns[i].argv);
2536                                 j = spawns_length - 1;
2537                                 if (i < j)
2538                                         spawns[i] = spawns[j];
2539                                 spawns_length--;
2540                                 free(prog->name);
2541                         } else {
2542                                 /* replace */
2543                                 DNPRINTF(SWM_D_SPAWN,
2544                                     "setspawn: replace #%d %s\n",
2545                                     i, spawns[i].name);
2546                                 free(spawns[i].name);
2547                                 for (j = 0; j < spawns[i].argc; j++)
2548                                         free(spawns[i].argv[j]);
2549                                 free(spawns[i].argv);
2550                                 spawns[i] = *prog;
2551                         }
2552                         /* found case handled */
2553                         free(prog);
2554                         return;
2555                 }
2556         }
2557
2558         if (prog->argv == NULL) {
2559                 fprintf(stderr,
2560                     "error: setspawn: cannot find program %s", prog->name);
2561                 free(prog);
2562                 return;
2563         }
2564
2565         /* not found: add */
2566         if (spawns_size == 0 || spawns == NULL) {
2567                 spawns_size = 4;
2568                 DNPRINTF(SWM_D_SPAWN, "setspawn: init list %d\n", spawns_size);
2569                 spawns = malloc((size_t)spawns_size *
2570                     sizeof(struct spawn_prog));
2571                 if (spawns == NULL) {
2572                         fprintf(stderr, "setspawn: malloc failed\n");
2573                         perror(" failed");
2574                         quit(NULL, NULL);
2575                 }
2576         } else if (spawns_length == spawns_size) {
2577                 spawns_size *= 2;
2578                 DNPRINTF(SWM_D_SPAWN, "setspawn: grow list %d\n", spawns_size);
2579                 spawns = realloc(spawns, (size_t)spawns_size *
2580                     sizeof(struct spawn_prog));
2581                 if (spawns == NULL) {
2582                         fprintf(stderr, "setspawn: realloc failed\n");
2583                         perror(" failed");
2584                         quit(NULL, NULL);
2585                 }
2586         }
2587
2588         if (spawns_length < spawns_size) {
2589                 DNPRINTF(SWM_D_SPAWN, "setspawn: add #%d %s\n",
2590                     spawns_length, prog->name);
2591                 i = spawns_length++;
2592                 spawns[i] = *prog;
2593         } else {
2594                 fprintf(stderr, "spawns array problem?\n");
2595                 if (spawns == NULL) {
2596                         fprintf(stderr, "spawns array is NULL!\n");
2597                         quit(NULL, NULL);
2598                 }
2599         }
2600         free(prog);
2601 }
2602
2603 int
2604 setconfspawn(char *selector, char *value, int flags)
2605 {
2606         struct spawn_prog       *prog;
2607         char                    *vp, *cp, *word;
2608
2609         DNPRINTF(SWM_D_SPAWN, "setconfspawn: [%s] [%s]\n", selector, value);
2610         if ((prog = calloc(1, sizeof *prog)) == NULL)
2611                 err(1, "setconfspawn: calloc prog");
2612         prog->name = strdup(selector);
2613         if (prog->name == NULL)
2614                 err(1, "setconfspawn prog->name");
2615         if ((cp = vp = strdup(value)) == NULL)
2616                 err(1, "setconfspawn: strdup(value) ");
2617         while ((word = strsep(&cp, " \t")) != NULL) {
2618                 DNPRINTF(SWM_D_SPAWN, "setconfspawn: arg [%s]\n", word);
2619                 if (cp)
2620                         cp += (long)strspn(cp, " \t");
2621                 if (strlen(word) > 0) {
2622                         prog->argc++;
2623                         prog->argv = realloc(prog->argv,
2624                             prog->argc * sizeof(char *));
2625                         if ((prog->argv[prog->argc - 1] = strdup(word)) == NULL)
2626                                 err(1, "setconfspawn: strdup");
2627                 }
2628         }
2629         free(vp);
2630
2631         setspawn(prog);
2632
2633         DNPRINTF(SWM_D_SPAWN, "setconfspawn: done\n");
2634         return (0);
2635 }
2636
2637 void
2638 setup_spawn(void)
2639 {
2640         setconfspawn("term",            "xterm",                0);
2641         setconfspawn("screenshot_all",  "screenshot.sh full",   0);
2642         setconfspawn("screenshot_wind", "screenshot.sh window", 0);
2643         setconfspawn("lock",            "xlock",                0);
2644         setconfspawn("initscr",         "initscreen.sh",        0);
2645         setconfspawn("menu",            "dmenu_run"
2646                                         " -fn $bar_font"
2647                                         " -nb $bar_color"
2648                                         " -nf $bar_font_color"
2649                                         " -sb $bar_border"
2650                                         " -sf $bar_color",      0);
2651 }
2652
2653 /* key bindings */
2654 #define SWM_MODNAME_SIZE        32
2655 #define SWM_KEY_WS              "\n+ \t"
2656 int
2657 parsekeys(char *keystr, unsigned int currmod, unsigned int *mod, KeySym *ks)
2658 {
2659         char                    *cp, *name;
2660         KeySym                  uks;
2661         DNPRINTF(SWM_D_KEY, "parsekeys: enter [%s]\n", keystr);
2662         if (mod == NULL || ks == NULL) {
2663                 DNPRINTF(SWM_D_KEY, "parsekeys: no mod or key vars\n");
2664                 return (1);
2665         }
2666         if (keystr == NULL || strlen(keystr) == 0) {
2667                 DNPRINTF(SWM_D_KEY, "parsekeys: no keystr\n");
2668                 return (1);
2669         }
2670         cp = keystr;
2671         *ks = NoSymbol;
2672         *mod = 0;
2673         while ((name = strsep(&cp, SWM_KEY_WS)) != NULL) {
2674                 DNPRINTF(SWM_D_KEY, "parsekeys: key [%s]\n", name);
2675                 if (cp)
2676                         cp += (long)strspn(cp, SWM_KEY_WS);
2677                 if (strncasecmp(name, "MOD", SWM_MODNAME_SIZE) == 0)
2678                         *mod |= currmod;
2679                 else if (!strncasecmp(name, "Mod1", SWM_MODNAME_SIZE))
2680                         *mod |= Mod1Mask;
2681                 else if (!strncasecmp(name, "Mod2", SWM_MODNAME_SIZE))
2682                         *mod += Mod2Mask;
2683                 else if (!strncmp(name, "Mod3", SWM_MODNAME_SIZE))
2684                         *mod |= Mod3Mask;
2685                 else if (!strncmp(name, "Mod4", SWM_MODNAME_SIZE))
2686                         *mod |= Mod4Mask;
2687                 else if (strncasecmp(name, "SHIFT", SWM_MODNAME_SIZE) == 0)
2688                         *mod |= ShiftMask;
2689                 else if (strncasecmp(name, "CONTROL", SWM_MODNAME_SIZE) == 0)
2690                         *mod |= ControlMask;
2691                 else {
2692                         *ks = XStringToKeysym(name);
2693                         XConvertCase(*ks, ks, &uks);
2694                         if (ks == NoSymbol) {
2695                                 DNPRINTF(SWM_D_KEY,
2696                                     "parsekeys: invalid key %s\n",
2697                                     name);
2698                                 return (1);
2699                         }
2700                 }
2701         }
2702         DNPRINTF(SWM_D_KEY, "parsekeys: leave ok\n");
2703         return (0);
2704 }
2705
2706 char *
2707 strdupsafe(char *str)
2708 {
2709         if (str == NULL)
2710                 return (NULL);
2711         else
2712                 return (strdup(str));
2713 }
2714
2715 void
2716 setkeybinding(unsigned int mod, KeySym ks, enum keyfuncid kfid, char *spawn_name)
2717 {
2718         int                     i, j;
2719         DNPRINTF(SWM_D_KEY, "setkeybinding: enter %s [%s]\n",
2720             keyfuncs[kfid].name, spawn_name);
2721         /* find existing */
2722         for (i = 0; i < keys_length; i++) {
2723                 if (keys[i].mod == mod && keys[i].keysym == ks) {
2724                         if (kfid == kf_invalid) {
2725                                 /* found: delete */
2726                                 DNPRINTF(SWM_D_KEY,
2727                                     "setkeybinding: delete #%d %s\n",
2728                                     i, keyfuncs[keys[i].funcid].name);
2729                                 free(keys[i].spawn_name);
2730                                 j = keys_length - 1;
2731                                 if (i < j)
2732                                         keys[i] = keys[j];
2733                                 keys_length--;
2734                                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2735                                 return;
2736                         } else {
2737                                 /* found: replace */
2738                                 DNPRINTF(SWM_D_KEY,
2739                                     "setkeybinding: replace #%d %s %s\n",
2740                                     i, keyfuncs[keys[i].funcid].name,
2741                                     spawn_name);
2742                                 free(keys[i].spawn_name);
2743                                 keys[i].mod = mod;
2744                                 keys[i].keysym = ks;
2745                                 keys[i].funcid = kfid;
2746                                 keys[i].spawn_name = strdupsafe(spawn_name);
2747                                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2748                                 return;
2749                         }
2750                 }
2751         }
2752         if (kfid == kf_invalid) {
2753                 fprintf(stderr,
2754                     "error: setkeybinding: cannot find mod/key combination");
2755                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2756                 return;
2757         }
2758         /* not found: add */
2759         if (keys_size == 0 || keys == NULL) {
2760                 keys_size = 4;
2761                 DNPRINTF(SWM_D_KEY, "setkeybinding: init list %d\n", keys_size);
2762                 keys = malloc((size_t)keys_size * sizeof(struct key));
2763                 if (!keys) {
2764                         fprintf(stderr, "malloc failed\n");
2765                         perror(" failed");
2766                         quit(NULL, NULL);
2767                 }
2768         } else if (keys_length == keys_size) {
2769                 keys_size *= 2;
2770                 DNPRINTF(SWM_D_KEY, "setkeybinding: grow list %d\n", keys_size);
2771                 keys = realloc(keys, (size_t)keys_size * sizeof(struct key));
2772                 if (!keys) {
2773                         fprintf(stderr, "realloc failed\n");
2774                         perror(" failed");
2775                         quit(NULL, NULL);
2776                 }
2777         }
2778         if (keys_length < keys_size) {
2779                 j = keys_length++;
2780                 DNPRINTF(SWM_D_KEY, "setkeybinding: add #%d %s %s\n",
2781                     j, keyfuncs[kfid].name, spawn_name);
2782                 keys[j].mod = mod;
2783                 keys[j].keysym = ks;
2784                 keys[j].funcid = kfid;
2785                 keys[j].spawn_name = strdupsafe(spawn_name);
2786         } else {
2787                 fprintf(stderr, "keys array problem?\n");
2788                 if (!keys) {
2789                         fprintf(stderr, "keys array problem\n");
2790                         quit(NULL, NULL);
2791                 }
2792         }
2793         DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2794 }
2795
2796 int
2797 setconfbinding(char *selector, char *value, int flags)
2798 {
2799         enum keyfuncid          kfid;
2800         unsigned int            mod;
2801         KeySym                  ks;
2802         int                     i;
2803         DNPRINTF(SWM_D_KEY, "setconfbinding: enter\n");
2804         if (selector == NULL) {
2805                 DNPRINTF(SWM_D_KEY, "setconfbinding: unbind %s\n", value);
2806                 if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2807                         kfid = kf_invalid;
2808                         setkeybinding(mod, ks, kfid, NULL);
2809                         return (0);
2810                 } else
2811                         return (1);
2812         }
2813         /* search by key function name */
2814         for (kfid = 0; kfid < kf_invalid; (kfid)++) {
2815                 if (strncasecmp(selector, keyfuncs[kfid].name,
2816                     SWM_FUNCNAME_LEN) == 0) {
2817                         DNPRINTF(SWM_D_KEY, "setconfbinding: %s: match\n",
2818                             selector);
2819                         if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2820                                 setkeybinding(mod, ks, kfid, NULL);
2821                                 return (0);
2822                         } else
2823                                 return (1);
2824                 }
2825         }
2826         /* search by custom spawn name */
2827         for (i = 0; i < spawns_length; i++) {
2828                 if (strcasecmp(selector, spawns[i].name) == 0) {
2829                         DNPRINTF(SWM_D_KEY, "setconfbinding: %s: match\n",
2830                             selector);
2831                         if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2832                                 setkeybinding(mod, ks, kf_spawn_custom,
2833                                     spawns[i].name);
2834                                 return (0);
2835                         } else
2836                                 return (1);
2837                 }
2838         }
2839         DNPRINTF(SWM_D_KEY, "setconfbinding: no match\n");
2840         return (1);
2841 }
2842
2843 void
2844 setup_keys(void)
2845 {
2846         setkeybinding(MODKEY,           XK_space,       kf_cycle_layout,NULL);
2847         setkeybinding(MODKEY|ShiftMask, XK_space,       kf_stack_reset, NULL);
2848         setkeybinding(MODKEY,           XK_h,           kf_master_shrink,NULL);
2849         setkeybinding(MODKEY,           XK_l,           kf_master_grow, NULL);
2850         setkeybinding(MODKEY,           XK_comma,       kf_master_add,  NULL);
2851         setkeybinding(MODKEY,           XK_period,      kf_master_del,  NULL);
2852         setkeybinding(MODKEY|ShiftMask, XK_comma,       kf_stack_inc,   NULL);
2853         setkeybinding(MODKEY|ShiftMask, XK_period,      kf_stack_dec,   NULL);
2854         setkeybinding(MODKEY,           XK_Return,      kf_swap_main,   NULL);
2855         setkeybinding(MODKEY,           XK_j,           kf_focus_next,  NULL);
2856         setkeybinding(MODKEY,           XK_k,           kf_focus_prev,  NULL);
2857         setkeybinding(MODKEY|ShiftMask, XK_j,           kf_swap_next,   NULL);
2858         setkeybinding(MODKEY|ShiftMask, XK_k,           kf_swap_prev,   NULL);
2859         setkeybinding(MODKEY|ShiftMask, XK_Return,      kf_spawn_term,  NULL);
2860         setkeybinding(MODKEY,           XK_p,           kf_spawn_custom,        "menu");
2861         setkeybinding(MODKEY|ShiftMask, XK_q,           kf_quit,        NULL);
2862         setkeybinding(MODKEY,           XK_q,           kf_restart,     NULL);
2863         setkeybinding(MODKEY,           XK_m,           kf_focus_main,  NULL);
2864         setkeybinding(MODKEY,           XK_1,           kf_ws_1,        NULL);
2865         setkeybinding(MODKEY,           XK_2,           kf_ws_2,        NULL);
2866         setkeybinding(MODKEY,           XK_3,           kf_ws_3,        NULL);
2867         setkeybinding(MODKEY,           XK_4,           kf_ws_4,        NULL);
2868         setkeybinding(MODKEY,           XK_5,           kf_ws_5,        NULL);
2869         setkeybinding(MODKEY,           XK_6,           kf_ws_6,        NULL);
2870         setkeybinding(MODKEY,           XK_7,           kf_ws_7,        NULL);
2871         setkeybinding(MODKEY,           XK_8,           kf_ws_8,        NULL);
2872         setkeybinding(MODKEY,           XK_9,           kf_ws_9,        NULL);
2873         setkeybinding(MODKEY,           XK_0,           kf_ws_10,       NULL);
2874         setkeybinding(MODKEY,           XK_Right,       kf_ws_next,     NULL);
2875         setkeybinding(MODKEY,           XK_Left,        kf_ws_prev,     NULL);
2876         setkeybinding(MODKEY|ShiftMask, XK_Right,       kf_screen_next, NULL);
2877         setkeybinding(MODKEY|ShiftMask, XK_Left,        kf_screen_prev, NULL);
2878         setkeybinding(MODKEY|ShiftMask, XK_1,           kf_mvws_1,      NULL);
2879         setkeybinding(MODKEY|ShiftMask, XK_2,           kf_mvws_2,      NULL);
2880         setkeybinding(MODKEY|ShiftMask, XK_3,           kf_mvws_3,      NULL);
2881         setkeybinding(MODKEY|ShiftMask, XK_4,           kf_mvws_4,      NULL);
2882         setkeybinding(MODKEY|ShiftMask, XK_5,           kf_mvws_5,      NULL);
2883         setkeybinding(MODKEY|ShiftMask, XK_6,           kf_mvws_6,      NULL);
2884         setkeybinding(MODKEY|ShiftMask, XK_7,           kf_mvws_7,      NULL);
2885         setkeybinding(MODKEY|ShiftMask, XK_8,           kf_mvws_8,      NULL);
2886         setkeybinding(MODKEY|ShiftMask, XK_9,           kf_mvws_9,      NULL);
2887         setkeybinding(MODKEY|ShiftMask, XK_0,           kf_mvws_10,     NULL);
2888         setkeybinding(MODKEY,           XK_b,           kf_bar_toggle,  NULL);
2889         setkeybinding(MODKEY,           XK_Tab,         kf_focus_next,  NULL);
2890         setkeybinding(MODKEY|ShiftMask, XK_Tab,         kf_focus_prev,  NULL);
2891         setkeybinding(MODKEY|ShiftMask, XK_x,           kf_wind_kill,   NULL);
2892         setkeybinding(MODKEY,           XK_x,           kf_wind_del,    NULL);
2893         setkeybinding(MODKEY,           XK_s,           kf_spawn_custom,        "screenshot_all");
2894         setkeybinding(MODKEY|ShiftMask, XK_s,           kf_spawn_custom,        "screenshot_wind");
2895         setkeybinding(MODKEY,           XK_t,           kf_float_toggle,NULL);
2896         setkeybinding(MODKEY|ShiftMask, XK_v,           kf_version,     NULL);
2897         setkeybinding(MODKEY|ShiftMask, XK_Delete,      kf_spawn_custom,        "lock");
2898         setkeybinding(MODKEY|ShiftMask, XK_i,           kf_spawn_custom,        "initscr");
2899 }
2900
2901 void
2902 updatenumlockmask(void)
2903 {
2904         unsigned int            i, j;
2905         XModifierKeymap         *modmap;
2906
2907         DNPRINTF(SWM_D_MISC, "updatenumlockmask\n");
2908         numlockmask = 0;
2909         modmap = XGetModifierMapping(display);
2910         for (i = 0; i < 8; i++)
2911                 for (j = 0; j < modmap->max_keypermod; j++)
2912                         if (modmap->modifiermap[i * modmap->max_keypermod + j]
2913                           == XKeysymToKeycode(display, XK_Num_Lock))
2914                                 numlockmask = (1 << i);
2915
2916         XFreeModifiermap(modmap);
2917 }
2918
2919 void
2920 grabkeys(void)
2921 {
2922         unsigned int            i, j, k;
2923         KeyCode                 code;
2924         unsigned int            modifiers[] =
2925             { 0, LockMask, numlockmask, numlockmask | LockMask };
2926
2927         DNPRINTF(SWM_D_MISC, "grabkeys\n");
2928         updatenumlockmask();
2929
2930         for (k = 0; k < ScreenCount(display); k++) {
2931                 if (TAILQ_EMPTY(&screens[k].rl))
2932                         continue;
2933                 XUngrabKey(display, AnyKey, AnyModifier, screens[k].root);
2934                 for (i = 0; i < keys_length; i++) {
2935                         if ((code = XKeysymToKeycode(display, keys[i].keysym)))
2936                                 for (j = 0; j < LENGTH(modifiers); j++)
2937                                         XGrabKey(display, code,
2938                                             keys[i].mod | modifiers[j],
2939                                             screens[k].root, True,
2940                                             GrabModeAsync, GrabModeAsync);
2941                 }
2942         }
2943 }
2944
2945 void
2946 grabbuttons(struct ws_win *win, int focused)
2947 {
2948         unsigned int            i, j;
2949         unsigned int            modifiers[] =
2950             { 0, LockMask, numlockmask, numlockmask|LockMask };
2951
2952         updatenumlockmask();
2953         XUngrabButton(display, AnyButton, AnyModifier, win->id);
2954         if(focused) {
2955                 for (i = 0; i < LENGTH(buttons); i++)
2956                         if (buttons[i].action == client_click)
2957                                 for (j = 0; j < LENGTH(modifiers); j++)
2958                                         XGrabButton(display, buttons[i].button,
2959                                             buttons[i].mask | modifiers[j],
2960                                             win->id, False, BUTTONMASK,
2961                                             GrabModeAsync, GrabModeSync, None,
2962                                             None);
2963         } else
2964                 XGrabButton(display, AnyButton, AnyModifier, win->id, False,
2965                     BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
2966 }
2967
2968 const char *quirkname[] = {
2969         "NONE",         /* config string for "no value" */
2970         "FLOAT",
2971         "TRANSSZ",
2972         "ANYWHERE",
2973         "XTERM_FONTADJ",
2974         "FULLSCREEN",
2975 };
2976
2977 /* SWM_Q_WS: retain '|' for back compat for now (2009-08-11) */
2978 #define SWM_Q_WS                "\n|+ \t"
2979 int
2980 parsequirks(char *qstr, unsigned long *quirk)
2981 {
2982         char                    *cp, *name;
2983         int                     i;
2984
2985         if (quirk == NULL)
2986                 return (1);
2987
2988         cp = qstr;
2989         *quirk = 0;
2990         while ((name = strsep(&cp, SWM_Q_WS)) != NULL) {
2991                 if (cp)
2992                         cp += (long)strspn(cp, SWM_Q_WS);
2993                 for (i = 0; i < LENGTH(quirkname); i++) {
2994                         if (!strncasecmp(name, quirkname[i], SWM_QUIRK_LEN)) {
2995                                 DNPRINTF(SWM_D_QUIRK, "parsequirks: %s\n", name);
2996                                 if (i == 0) {
2997                                         *quirk = 0;
2998                                         return (0);
2999                                 }
3000                                 *quirk |= 1 << (i-1);
3001                                 break;
3002                         }
3003                 }
3004                 if (i >= LENGTH(quirkname)) {
3005                         DNPRINTF(SWM_D_QUIRK,
3006                             "parsequirks: invalid quirk [%s]\n", name);
3007                         return (1);
3008                 }
3009         }
3010         return (0);
3011 }
3012
3013 void
3014 setquirk(const char *class, const char *name, const int quirk)
3015 {
3016         int                     i, j;
3017
3018         /* find existing */
3019         for (i = 0; i < quirks_length; i++) {
3020                 if (!strcmp(quirks[i].class, class) &&
3021                     !strcmp(quirks[i].name, name)) {
3022                         if (!quirk) {
3023                                 /* found: delete */
3024                                 DNPRINTF(SWM_D_QUIRK,
3025                                     "setquirk: delete #%d %s:%s\n",
3026                                     i, quirks[i].class, quirks[i].name);
3027                                 free(quirks[i].class);
3028                                 free(quirks[i].name);
3029                                 j = quirks_length - 1;
3030                                 if (i < j)
3031                                         quirks[i] = quirks[j];
3032                                 quirks_length--;
3033                                 return;
3034                         } else {
3035                                 /* found: replace */
3036                                 DNPRINTF(SWM_D_QUIRK,
3037                                     "setquirk: replace #%d %s:%s\n",
3038                                     i, quirks[i].class, quirks[i].name);
3039                                 free(quirks[i].class);
3040                                 free(quirks[i].name);
3041                                 quirks[i].class = strdup(class);
3042                                 quirks[i].name = strdup(name);
3043                                 quirks[i].quirk = quirk;
3044                                 return;
3045                         }
3046                 }
3047         }
3048         if (!quirk) {
3049                 fprintf(stderr,
3050                     "error: setquirk: cannot find class/name combination");
3051                 return;
3052         }
3053         /* not found: add */
3054         if (quirks_size == 0 || quirks == NULL) {
3055                 quirks_size = 4;
3056                 DNPRINTF(SWM_D_QUIRK, "setquirk: init list %d\n", quirks_size);
3057                 quirks = malloc((size_t)quirks_size * sizeof(struct quirk));
3058                 if (!quirks) {
3059                         fprintf(stderr, "setquirk: malloc failed\n");
3060                         perror(" failed");
3061                         quit(NULL, NULL);
3062                 }
3063         } else if (quirks_length == quirks_size) {
3064                 quirks_size *= 2;
3065                 DNPRINTF(SWM_D_QUIRK, "setquirk: grow list %d\n", quirks_size);
3066                 quirks = realloc(quirks, (size_t)quirks_size * sizeof(struct quirk));
3067                 if (!quirks) {
3068                         fprintf(stderr, "setquirk: realloc failed\n");
3069                         perror(" failed");
3070                         quit(NULL, NULL);
3071                 }
3072         }
3073         if (quirks_length < quirks_size) {
3074                 DNPRINTF(SWM_D_QUIRK, "setquirk: add %d\n", quirks_length);
3075                 j = quirks_length++;
3076                 quirks[j].class = strdup(class);
3077                 quirks[j].name = strdup(name);
3078                 quirks[j].quirk = quirk;
3079         } else {
3080                 fprintf(stderr, "quirks array problem?\n");
3081                 if (!quirks) {
3082                         fprintf(stderr, "quirks array problem!\n");
3083                         quit(NULL, NULL);
3084                 }
3085         }
3086 }
3087
3088 int
3089 setconfquirk(char *selector, char *value, int flags)
3090 {
3091         char                    *cp, *class, *name;
3092         int                     retval;
3093         unsigned long           quirks;
3094         if (selector == NULL)
3095                 return (0);
3096         if ((cp = strchr(selector, ':')) == NULL)
3097                 return (0);
3098         *cp = '\0';
3099         class = selector;
3100         name = cp + 1;
3101         if ((retval = parsequirks(value, &quirks)) == 0)
3102                 setquirk(class, name, quirks);
3103         return (retval);
3104 }
3105
3106 void
3107 setup_quirks(void)
3108 {
3109         setquirk("MPlayer",             "xv",           SWM_Q_FLOAT | SWM_Q_FULLSCREEN);
3110         setquirk("OpenOffice.org 2.4",  "VCLSalFrame",  SWM_Q_FLOAT);
3111         setquirk("OpenOffice.org 3.0",  "VCLSalFrame",  SWM_Q_FLOAT);
3112         setquirk("Firefox-bin",         "firefox-bin",  SWM_Q_TRANSSZ);
3113         setquirk("Firefox",             "Dialog",       SWM_Q_FLOAT);
3114         setquirk("Gimp",                "gimp",         SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3115         setquirk("XTerm",               "xterm",        SWM_Q_XTERM_FONTADJ);
3116         setquirk("xine",                "Xine Window",  SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3117         setquirk("Xitk",                "Xitk Combo",   SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3118         setquirk("xine",                "xine Panel",   SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3119         setquirk("Xitk",                "Xine Window",  SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3120         setquirk("xine",                "xine Video Fullscreen Window", SWM_Q_FULLSCREEN | SWM_Q_FLOAT);
3121         setquirk("pcb",                 "pcb",          SWM_Q_FLOAT);
3122 }
3123
3124 /* conf file stuff */
3125 #define SWM_CONF_FILE   "scrotwm.conf"
3126
3127 enum    { SWM_S_BAR_DELAY, SWM_S_BAR_ENABLED, SWM_S_STACK_ENABLED,
3128           SWM_S_CLOCK_ENABLED, SWM_S_CYCLE_EMPTY, SWM_S_CYCLE_VISIBLE,
3129           SWM_S_SS_ENABLED, SWM_S_TERM_WIDTH, SWM_S_TITLE_CLASS_ENABLED,
3130           SWM_S_TITLE_NAME_ENABLED, SWM_S_BAR_FONT, SWM_S_BAR_ACTION,
3131           SWM_S_SPAWN_TERM, SWM_S_SS_APP, SWM_S_DIALOG_RATIO };
3132
3133 int
3134 setconfvalue(char *selector, char *value, int flags)
3135 {
3136         switch (flags) {
3137         case SWM_S_BAR_DELAY:
3138                 bar_delay = atoi(value);
3139                 break;
3140         case SWM_S_BAR_ENABLED:
3141                 bar_enabled = atoi(value);
3142                 break;
3143         case SWM_S_STACK_ENABLED:
3144                 stack_enabled = atoi(value);
3145                 break;
3146         case SWM_S_CLOCK_ENABLED:
3147                 clock_enabled = atoi(value);
3148                 break;
3149         case SWM_S_CYCLE_EMPTY:
3150                 cycle_empty = atoi(value);
3151                 break;
3152         case SWM_S_CYCLE_VISIBLE:
3153                 cycle_visible = atoi(value);
3154                 break;
3155         case SWM_S_SS_ENABLED:
3156                 ss_enabled = atoi(value);
3157                 break;
3158         case SWM_S_TERM_WIDTH:
3159                 term_width = atoi(value);
3160                 break;
3161         case SWM_S_TITLE_CLASS_ENABLED:
3162                 title_class_enabled = atoi(value);
3163                 break;
3164         case SWM_S_TITLE_NAME_ENABLED:
3165                 title_name_enabled = atoi(value);
3166                 break;
3167         case SWM_S_BAR_FONT:
3168                 free(bar_fonts[0]);
3169                 if ((bar_fonts[0] = strdup(value)) == NULL)
3170                         err(1, "setconfvalue: bar_font");
3171                 break;
3172         case SWM_S_BAR_ACTION:
3173                 free(bar_argv[0]);
3174                 if ((bar_argv[0] = strdup(value)) == NULL)
3175                         err(1, "setconfvalue: bar_action");
3176                 break;
3177         case SWM_S_SPAWN_TERM:
3178                 free(spawn_term[0]);
3179                 if ((spawn_term[0] = strdup(value)) == NULL)
3180                         err(1, "setconfvalue: spawn_term");
3181                 break;
3182         case SWM_S_SS_APP:
3183                 break;
3184         case SWM_S_DIALOG_RATIO:
3185                 dialog_ratio = atof(value);
3186                 if (dialog_ratio > 1.0 || dialog_ratio <= .3)
3187                         dialog_ratio = .6;
3188                 break;
3189         default:
3190                 return (1);
3191         }
3192         return (0);
3193 }
3194
3195 int
3196 setconfmodkey(char *selector, char *value, int flags)
3197 {
3198         if (!strncasecmp(value, "Mod1", strlen("Mod1")))
3199                 update_modkey(Mod1Mask);
3200         else if (!strncasecmp(value, "Mod2", strlen("Mod2")))
3201                 update_modkey(Mod2Mask);
3202         else if (!strncasecmp(value, "Mod3", strlen("Mod3")))
3203                 update_modkey(Mod3Mask);
3204         else if (!strncasecmp(value, "Mod4", strlen("Mod4")))
3205                 update_modkey(Mod4Mask);
3206         else
3207                 return (1);
3208         return (0);
3209 }
3210
3211 int
3212 setconfcolor(char *selector, char *value, int flags)
3213 {
3214         setscreencolor(value, ((selector == NULL)?-1:atoi(selector)), flags);
3215         return (0);
3216 }
3217
3218 int
3219 setconfregion(char *selector, char *value, int flags)
3220 {
3221         custom_region(value);
3222         return (0);
3223 }
3224
3225 /* config options */
3226 struct config_option {
3227         char                    *optname;
3228         int (*func)(char*, char*, int);
3229         int funcflags;
3230 };
3231 struct config_option configopt[] = {
3232         { "bar_enabled",                setconfvalue,   SWM_S_BAR_ENABLED },
3233         { "bar_border",                 setconfcolor,   SWM_S_COLOR_BAR_BORDER },
3234         { "bar_color",                  setconfcolor,   SWM_S_COLOR_BAR },
3235         { "bar_font_color",             setconfcolor,   SWM_S_COLOR_BAR_FONT },
3236         { "bar_font",                   setconfvalue,   SWM_S_BAR_FONT },
3237         { "bar_action",                 setconfvalue,   SWM_S_BAR_ACTION },
3238         { "bar_delay",                  setconfvalue,   SWM_S_BAR_DELAY },
3239         { "bind",                       setconfbinding, 0 },
3240         { "stack_enabled",              setconfvalue,   SWM_S_STACK_ENABLED },
3241         { "clock_enabled",              setconfvalue,   SWM_S_CLOCK_ENABLED },
3242         { "color_focus",                setconfcolor,   SWM_S_COLOR_FOCUS },
3243         { "color_unfocus",              setconfcolor,   SWM_S_COLOR_UNFOCUS },
3244         { "cycle_empty",                setconfvalue,   SWM_S_CYCLE_EMPTY },
3245         { "cycle_visible",              setconfvalue,   SWM_S_CYCLE_VISIBLE },
3246         { "dialog_ratio",               setconfvalue,   SWM_S_DIALOG_RATIO },
3247         { "modkey",                     setconfmodkey,  0 },
3248         { "program",                    setconfspawn,   0 },
3249         { "quirk",                      setconfquirk,   0 },
3250         { "region",                     setconfregion,  0 },
3251         { "spawn_term",                 setconfvalue,   SWM_S_SPAWN_TERM },
3252         { "screenshot_enabled",         setconfvalue,   SWM_S_SS_ENABLED },
3253         { "screenshot_app",             setconfvalue,   SWM_S_SS_APP },
3254         { "term_width",                 setconfvalue,   SWM_S_TERM_WIDTH },
3255         { "title_class_enabled",        setconfvalue,   SWM_S_TITLE_CLASS_ENABLED },
3256         { "title_name_enabled",         setconfvalue,   SWM_S_TITLE_NAME_ENABLED }
3257 };
3258
3259
3260 int
3261 conf_load(char *filename)
3262 {
3263         FILE                    *config;
3264         char                    *line, *cp, *optsub, *optval;
3265         size_t                  linelen, lineno = 0;
3266         int                     wordlen, i, optind;
3267         struct config_option    *opt;
3268
3269         DNPRINTF(SWM_D_CONF, "conf_load begin\n");
3270
3271         if (filename == NULL) {
3272                 fprintf(stderr, "conf_load: no filename\n");
3273                 return (1);
3274         }
3275         if ((config = fopen(filename, "r")) == NULL) {
3276                 warn("conf_load: fopen");
3277                 return (1);
3278         }
3279
3280         while (!feof(config)) {
3281                 if ((line = fparseln(config, &linelen, &lineno, NULL, 0))
3282                     == NULL) {
3283                         if (ferror(config))
3284                                 err(1, "%s", filename);
3285                         else
3286                                 continue;
3287                 }
3288                 cp = line;
3289                 cp += strspn(cp, " \t\n"); /* eat whitespace */
3290                 if (cp[0] == '\0') {
3291                         /* empty line */
3292                         free(line);
3293                         continue;
3294                 }
3295                 /* get config option */
3296                 wordlen = strcspn(cp, "=[ \t\n");
3297                 if (wordlen == 0) {
3298                         warnx("%s: line %zd: no option found",
3299                             filename, lineno);
3300                         return (1);
3301                 }
3302                 optind = -1;
3303                 for (i = 0; i < LENGTH(configopt); i++) {
3304                         opt = &configopt[i];
3305                         if (!strncasecmp(cp, opt->optname, wordlen) &&
3306                             strlen(opt->optname) == wordlen) {
3307                                 optind = i;
3308                                 break;
3309                         }
3310                 }
3311                 if (optind == -1) {
3312                         warnx("%s: line %zd: unknown option %.*s",
3313                             filename, lineno, wordlen, cp);
3314                         return (1);
3315                 }
3316                 cp += wordlen;
3317                 cp += strspn(cp, " \t\n"); /* eat whitespace */
3318                 /* get [selector] if any */
3319                 optsub = NULL;
3320                 if (*cp == '[') {
3321                         cp++;
3322                         wordlen = strcspn(cp, "]");
3323                         if (*cp != ']') {
3324                                 if (wordlen == 0) {
3325                                         warnx("%s: line %zd: syntax error",
3326                                             filename, lineno);
3327                                         return (1);
3328                                 }
3329                                 asprintf(&optsub, "%.*s", wordlen, cp);
3330                         }
3331                         cp += wordlen;
3332                         cp += strspn(cp, "] \t\n"); /* eat trailing */
3333                 }
3334                 cp += strspn(cp, "= \t\n"); /* eat trailing */
3335                 /* get RHS value */
3336                 optval = strdup(cp);
3337                 /* call function to deal with it all */
3338                 if (configopt[optind].func(optsub, optval,
3339                     configopt[optind].funcflags) != 0) {
3340                         fprintf(stderr, "%s line %zd: %s\n",
3341                             filename, lineno, line);
3342                         errx(1, "%s: line %zd: invalid data for %s",
3343                             filename, lineno, configopt[optind].optname);
3344                 }
3345                 free(optval);
3346                 free(optsub);
3347                 free(line);
3348         }
3349
3350         fclose(config);
3351         DNPRINTF(SWM_D_CONF, "conf_load end\n");
3352
3353         return (0);
3354 }
3355
3356 struct ws_win *
3357 manage_window(Window id)
3358 {
3359         Window                  trans = 0;
3360         struct workspace        *ws;
3361         struct ws_win           *win, *ww, *parent;
3362         int                     format, i, ws_idx, n, border_me = 0;
3363         unsigned long           nitems, bytes;
3364         Atom                    ws_idx_atom = 0, type;
3365         Atom                    *prot = NULL, *pp;
3366         unsigned char           ws_idx_str[SWM_PROPLEN], *prop = NULL;
3367         struct swm_region       *r;
3368         long                    mask;
3369         const char              *errstr;
3370         XWindowChanges          wc;
3371
3372         if ((win = find_window(id)) != NULL)
3373                         return (win);   /* already being managed */
3374
3375         if ((win = calloc(1, sizeof(struct ws_win))) == NULL)
3376                 errx(1, "calloc: failed to allocate memory for new window");
3377
3378         /* Get all the window data in one shot */
3379         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
3380         if (ws_idx_atom)
3381                 XGetWindowProperty(display, id, ws_idx_atom, 0, SWM_PROPLEN,
3382                     False, XA_STRING, &type, &format, &nitems, &bytes, &prop);
3383         XGetWindowAttributes(display, id, &win->wa);
3384         XGetWMNormalHints(display, id, &win->sh, &mask);
3385         XGetTransientForHint(display, id, &trans);
3386         if (trans) {
3387                 win->transient = trans;
3388                 parent = find_window(win->transient);
3389                 if (parent)
3390                         parent->child_trans = win;
3391                 DNPRINTF(SWM_D_MISC, "manage_window: win %u transient %u\n",
3392                     (unsigned)win->id, win->transient);
3393         }
3394         /* get supported protocols */
3395         if (XGetWMProtocols(display, id, &prot, &n)) {
3396                 for (i = 0, pp = prot; i < n; i++, pp++) {
3397                         if (*pp == takefocus)
3398                                 win->take_focus = 1;
3399                         if (*pp == adelete)
3400                                 win->can_delete = 1;
3401                 }
3402                 if (prot)
3403                         XFree(prot);
3404         }
3405
3406         /*
3407          * Figure out where to put the window. If it was previously assigned to
3408          * a workspace (either by spawn() or manually moving), and isn't
3409          * transient, * put it in the same workspace
3410          */
3411         r = root_to_region(win->wa.root);
3412         if (prop && win->transient == 0) {
3413                 DNPRINTF(SWM_D_PROP, "got property _SWM_WS=%s\n", prop);
3414                 ws_idx = strtonum(prop, 0, 9, &errstr);
3415                 if (errstr) {
3416                         DNPRINTF(SWM_D_EVENT, "window idx is %s: %s",
3417                             errstr, prop);
3418                 }
3419                 ws = &r->s->ws[ws_idx];
3420         } else {
3421                 ws = r->ws;
3422                 /* this should launch transients in the same ws as parent */
3423                 if (id && trans)
3424                         if ((ww = find_window(trans)) != NULL)
3425                                 if (ws->r) {
3426                                         ws = ww->ws;
3427                                         if (ww->ws->r)
3428                                                 r = ww->ws->r;
3429                                         else
3430                                                 fprintf(stderr,
3431                                                     "fix this bug mcbride\n");
3432                                         border_me = 1;
3433                                 }
3434         }
3435
3436         /* set up the window layout */
3437         win->id = id;
3438         win->ws = ws;
3439         win->s = r->s;  /* this never changes */
3440         TAILQ_INSERT_TAIL(&ws->winlist, win, entry);
3441
3442         win->g.w = win->wa.width;
3443         win->g.h = win->wa.height;
3444         win->g.x = win->wa.x;
3445         win->g.y = win->wa.y;
3446
3447         /* Set window properties so we can remember this after reincarnation */
3448         if (ws_idx_atom && prop == NULL &&
3449             snprintf(ws_idx_str, SWM_PROPLEN, "%d", ws->idx) < SWM_PROPLEN) {
3450                 DNPRINTF(SWM_D_PROP, "setting property _SWM_WS to %s\n",
3451                     ws_idx_str);
3452                 XChangeProperty(display, win->id, ws_idx_atom, XA_STRING, 8,
3453                     PropModeReplace, ws_idx_str, SWM_PROPLEN);
3454         }
3455         XFree(prop);
3456
3457         if (XGetClassHint(display, win->id, &win->ch)) {
3458                 DNPRINTF(SWM_D_CLASS, "class: %s name: %s\n",
3459                     win->ch.res_class, win->ch.res_name);
3460
3461                 /* java is retarded so treat it special */
3462                 if (strstr(win->ch.res_name, "sun-awt"))
3463                         win->java = 1;
3464
3465                 for (i = 0; i < quirks_length; i++){
3466                         if (!strcmp(win->ch.res_class, quirks[i].class) &&
3467                             !strcmp(win->ch.res_name, quirks[i].name)) {
3468                                 DNPRINTF(SWM_D_CLASS, "found: %s name: %s\n",
3469                                     win->ch.res_class, win->ch.res_name);
3470                                 if (quirks[i].quirk & SWM_Q_FLOAT)
3471                                         win->floating = 1;
3472                                 win->quirks = quirks[i].quirk;
3473                         }
3474                 }
3475         }
3476
3477         /* alter window position if quirky */
3478         if (win->quirks & SWM_Q_ANYWHERE) {
3479                 win->manual = 1; /* don't center the quirky windows */
3480                 bzero(&wc, sizeof wc);
3481                 mask = 0;
3482                 if (win->g.y < bar_height) {
3483                         win->g.y = wc.y = bar_height;
3484                         mask |= CWY;
3485                 }
3486                 if (win->g.w + win->g.x > WIDTH(r)) {
3487                         win->g.x = wc.x = WIDTH(r) - win->g.w - 2;
3488                         mask |= CWX;
3489                 }
3490                 border_me = 1;
3491         }
3492
3493         /* Reset font sizes (the bruteforce way; no default keybinding). */
3494         if (win->quirks & SWM_Q_XTERM_FONTADJ) {
3495                 for (i = 0; i < SWM_MAX_FONT_STEPS; i++)
3496                         fake_keypress(win, XK_KP_Subtract, ShiftMask);
3497                 for (i = 0; i < SWM_MAX_FONT_STEPS; i++)
3498                         fake_keypress(win, XK_KP_Add, ShiftMask);
3499         }
3500
3501         /* border me */
3502         if (border_me) {
3503                 bzero(&wc, sizeof wc);
3504                 wc.border_width = 1;
3505                 mask = CWBorderWidth;
3506                 XConfigureWindow(display, win->id, mask, &wc);
3507                 configreq_win(win);
3508         }
3509
3510         XSelectInput(display, id, EnterWindowMask | FocusChangeMask |
3511             PropertyChangeMask | StructureNotifyMask);
3512
3513         set_win_state(win, NormalState);
3514
3515         /* floaters need to be mapped if they are in the current workspace */
3516         if ((win->floating || win->transient) && (ws->idx == r->ws->idx))
3517                 XMapRaised(display, win->id);
3518
3519         return (win);
3520 }
3521
3522 void
3523 unmanage_window(struct ws_win *win)
3524 {
3525         struct workspace        *ws;
3526         struct ws_win           *parent;
3527
3528         if (win == NULL)
3529                 return;
3530
3531         DNPRINTF(SWM_D_MISC, "unmanage_window:  %lu\n", win->id);
3532
3533         /* needed for restart wm */
3534         set_win_state(win, WithdrawnState);
3535
3536         if (win->transient) {
3537                 parent = find_window(win->transient);
3538                 if (parent)
3539                         parent->child_trans = NULL;
3540         }
3541
3542         ws = win->ws;
3543         TAILQ_REMOVE(&win->ws->winlist, win, entry);
3544         if (win->ch.res_class)
3545                 XFree(win->ch.res_class);
3546         if (win->ch.res_name)
3547                 XFree(win->ch.res_name);
3548         free(win);
3549 }
3550
3551 void
3552 focus_magic(struct ws_win *win)
3553 {
3554         if (win->child_trans) {
3555                 /* win = parent & has a transient so focus on that */
3556                 if (win->java) {
3557                         focus_win(win->child_trans);
3558                         if (win->child_trans->take_focus)
3559                                 client_msg(win, takefocus);
3560                 } else {
3561                         focus_win(win->child_trans);
3562                         if (win->child_trans->take_focus)
3563                                 client_msg(win->child_trans, takefocus);
3564                 }
3565         } else {
3566                 /* regular focus */
3567                 focus_win(win);
3568                 if (win->take_focus)
3569                         client_msg(win, takefocus);
3570         }
3571 }
3572
3573 Bool
3574 destroy_notify_cb(Display *d, XEvent *e, char *arg)
3575 {
3576         struct ws_win           *win = (struct ws_win *)arg;
3577         if (win && win->id == e->xany.window && e->xany.type == DestroyNotify)
3578                         return (True);
3579         return (False);
3580 }
3581
3582 void
3583 expose(XEvent *e)
3584 {
3585         DNPRINTF(SWM_D_EVENT, "expose: window: %lu\n", e->xexpose.window);
3586 }
3587
3588 void
3589 keypress(XEvent *e)
3590 {
3591         unsigned int            i;
3592         KeySym                  keysym;
3593         XKeyEvent               *ev = &e->xkey;
3594
3595         DNPRINTF(SWM_D_EVENT, "keypress: window: %lu\n", ev->window);
3596
3597         keysym = XKeycodeToKeysym(display, (KeyCode)ev->keycode, 0);
3598         for (i = 0; i < keys_length; i++)
3599                 if (keysym == keys[i].keysym
3600                    && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
3601                    && keyfuncs[keys[i].funcid].func) {
3602                         if (keys[i].funcid == kf_spawn_custom)
3603                                 spawn_custom(
3604                                     root_to_region(ev->root),
3605                                     &(keyfuncs[keys[i].funcid].args),
3606                                     keys[i].spawn_name
3607                                     );
3608                         else
3609                                 keyfuncs[keys[i].funcid].func(
3610                                     root_to_region(ev->root),
3611                                     &(keyfuncs[keys[i].funcid].args)
3612                                     );
3613                 }
3614 }
3615
3616 void
3617 buttonpress(XEvent *e)
3618 {
3619         XButtonPressedEvent     *ev = &e->xbutton;
3620
3621         struct ws_win           *win;
3622         int                     i, action;
3623
3624         DNPRINTF(SWM_D_EVENT, "buttonpress: window: %lu\n", ev->window);
3625
3626         action = root_click;
3627         if ((win = find_window(ev->window)) == NULL)
3628                 return;
3629
3630         focus_magic(win);
3631         action = client_click;
3632
3633         for (i = 0; i < LENGTH(buttons); i++)
3634                 if (action == buttons[i].action && buttons[i].func &&
3635                     buttons[i].button == ev->button &&
3636                     CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
3637                         buttons[i].func(win, &buttons[i].args);
3638 }
3639
3640 void
3641 configurerequest(XEvent *e)
3642 {
3643         XConfigureRequestEvent  *ev = &e->xconfigurerequest;
3644         struct ws_win           *win;
3645         int                     new = 0;
3646         XWindowChanges          wc;
3647
3648         if ((win = find_window(ev->window)) == NULL)
3649                 new = 1;
3650
3651         if (new) {
3652                 DNPRINTF(SWM_D_EVENT, "configurerequest: new window: %lu\n",
3653                     ev->window);
3654                 bzero(&wc, sizeof wc);
3655                 wc.x = ev->x;
3656                 wc.y = ev->y;
3657                 wc.width = ev->width;
3658                 wc.height = ev->height;
3659                 wc.border_width = ev->border_width;
3660                 wc.sibling = ev->above;
3661                 wc.stack_mode = ev->detail;
3662                 XConfigureWindow(display, ev->window, ev->value_mask, &wc);
3663         } else {
3664                 DNPRINTF(SWM_D_EVENT, "configurerequest: change window: %lu\n",
3665                     ev->window);
3666                 if (win->floating) {
3667                         if (ev->value_mask & CWX)
3668                                 win->g.x = ev->x;
3669                         if (ev->value_mask & CWY)
3670                                 win->g.y = ev->y;
3671                         if (ev->value_mask & CWWidth)
3672                                 win->g.w = ev->width;
3673                         if (ev->value_mask & CWHeight)
3674                                 win->g.h = ev->height;
3675                         if (win->ws->r != NULL) {
3676                                 /* this seems to be full screen */
3677                                 if (win->g.w >= WIDTH(win->ws->r)) {
3678                                         win->g.x = 0;
3679                                         win->g.w = WIDTH(win->ws->r);
3680                                         ev->value_mask |= CWX | CWWidth;
3681                                 }
3682                                 if (win->g.h >= HEIGHT(win->ws->r)) {
3683                                         /* kill border */
3684                                         win->g.y = 0;
3685                                         win->g.h = HEIGHT(win->ws->r);
3686                                         ev->value_mask |= CWY | CWHeight;
3687                                 }
3688                         }
3689                         XMoveResizeWindow(display, win->id,
3690                             win->g.x, win->g.y, win->g.w, win->g.h);
3691                         if ((ev->value_mask & (CWX | CWY)) &&
3692                             !(ev->value_mask & (CWWidth | CWHeight)))
3693                                 config_win(win);
3694                 } else
3695                         config_win(win);
3696         }
3697 }
3698
3699 void
3700 configurenotify(XEvent *e)
3701 {
3702         struct ws_win           *win;
3703         long                    mask;
3704
3705         DNPRINTF(SWM_D_EVENT, "configurenotify: window: %lu\n",
3706             e->xconfigure.window);
3707
3708         XMapWindow(display, e->xconfigure.window);
3709         win = find_window(e->xconfigure.window);
3710         if (win) {
3711                 XGetWMNormalHints(display, win->id, &win->sh, &mask);
3712                 adjust_font(win);
3713                 XMapWindow(display, win->id);
3714                 if (font_adjusted)
3715                         stack();
3716         }
3717 }
3718
3719 void
3720 destroynotify(XEvent *e)
3721 {
3722         struct ws_win           *win, *w, *winfocus = NULL;
3723         struct workspace        *ws;
3724         struct ws_win_list      *wl;
3725         XDestroyWindowEvent     *ev = &e->xdestroywindow;
3726         XEvent                  de;
3727
3728         DNPRINTF(SWM_D_EVENT, "destroynotify: window %lu\n", ev->window);
3729
3730         if ((win = find_window(ev->window)) != NULL) {
3731                 /* find a window to focus */
3732                 ws = win->ws;
3733                 wl = &ws->winlist;
3734
3735                 /* if we are transient give focus to parent */
3736                 if (win->transient)
3737                         winfocus = find_window(win->transient);
3738                 else if (ws->focus == win) {
3739                         /* if in max_stack try harder */
3740                         if (ws->cur_layout->flags & SWM_L_FOCUSPREV) {
3741                                 if (win != ws->focus_prev)
3742                                         winfocus = ws->focus_prev;
3743                                 else if (win != ws->focus)
3744                                         winfocus = ws->focus;
3745                         }
3746
3747                         /* fallback and normal handling */
3748                         if (winfocus == NULL) {
3749                                 if (TAILQ_FIRST(wl) == win)
3750                                         winfocus = TAILQ_NEXT(win, entry);
3751                                 else {
3752                                         winfocus = TAILQ_PREV(ws->focus,
3753                                             ws_win_list, entry);
3754                                         if (winfocus == NULL)
3755                                                 winfocus = TAILQ_LAST(wl,
3756                                                     ws_win_list);
3757                                 }
3758                         }
3759                 }
3760                 unmanage_window(win);
3761
3762                 /*
3763                  * Under stress conditions windows sometimes do not get removed
3764                  * from the managed list.  Use a very large hammer to get rid
3765                  * of them.  A smaller hammer would be nice.
3766                  */
3767                 TAILQ_FOREACH(w, &ws->winlist, entry) {
3768                         if (win == w)
3769                                 continue; /* can't happen but oh well */
3770
3771                         if (getstate(w->id) != -1)
3772                                 continue;
3773
3774                         /* see if we have a destroy event */
3775                         if (XCheckIfEvent(display, &de, destroy_notify_cb,
3776                             (char *)w) == False)
3777                                 unmanage_window(w); /* no event, help it */
3778                         else
3779                                 XPutBackEvent(display, &de); /* oops */
3780                 }
3781
3782                 ignore_enter = 1;
3783                 stack();
3784                 if (winfocus)
3785                         focus_win(winfocus);
3786                 ignore_enter = 0;
3787         }
3788 }
3789
3790 void
3791 enternotify(XEvent *e)
3792 {
3793         XCrossingEvent          *ev = &e->xcrossing;
3794         struct ws_win           *win;
3795
3796         DNPRINTF(SWM_D_EVENT, "enternotify: window: %lu\n", ev->window);
3797
3798         if (ignore_enter) {
3799                 /* eat event(r) to prevent autofocus */
3800                 ignore_enter = 0;
3801                 return;
3802         }
3803         /*
3804          * happens when a window is created or destroyed and the border
3805          * crosses the mouse pointer
3806          */
3807         if (QLength(display))
3808                 return;
3809
3810         if ((win = find_window(ev->window)) == NULL)
3811                 return;
3812
3813         focus_magic(win);
3814 }
3815
3816 void
3817 focusin(XEvent *e)
3818 {
3819         DNPRINTF(SWM_D_EVENT, "focusin: window: %lu\n", e->xfocus.window);
3820 }
3821
3822 void
3823 focusout(XEvent *e)
3824 {
3825         DNPRINTF(SWM_D_EVENT, "focusout: window: %lu\n", e->xfocus.window);
3826 }
3827
3828 void
3829 mapnotify(XEvent *e)
3830 {
3831         struct ws_win           *win;
3832         XMapEvent               *ev = &e->xmap;
3833
3834         DNPRINTF(SWM_D_EVENT, "mapnotify: window: %lu\n", ev->window);
3835
3836         win = find_window(ev->window);
3837         if (win)
3838                 set_win_state(win, NormalState);
3839 }
3840
3841 void
3842 mappingnotify(XEvent *e)
3843 {
3844         XMappingEvent           *ev = &e->xmapping;
3845
3846         XRefreshKeyboardMapping(ev);
3847         if (ev->request == MappingKeyboard)
3848                 grabkeys();
3849 }
3850
3851 void
3852 maprequest(XEvent *e)
3853 {
3854         struct ws_win           *win;
3855         struct swm_region       *r;
3856
3857         XMapRequestEvent        *ev = &e->xmaprequest;
3858         XWindowAttributes       wa;
3859
3860         DNPRINTF(SWM_D_EVENT, "maprequest: window: %lu\n",
3861             e->xmaprequest.window);
3862
3863         if (!XGetWindowAttributes(display, ev->window, &wa))
3864                 return;
3865         if (wa.override_redirect)
3866                 return;
3867
3868         win = manage_window(e->xmaprequest.window);
3869         if (win == NULL)
3870                 return; /* can't happen */
3871
3872         ignore_enter = 1;
3873         stack();
3874         ignore_enter = 0;
3875
3876         /* make new win focused */
3877         r = root_to_region(win->wa.root);
3878         if (win->ws == r->ws)
3879                 focus_win(win);
3880 }
3881
3882 void
3883 propertynotify(XEvent *e)
3884 {
3885         struct ws_win           *win;
3886         XPropertyEvent          *ev = &e->xproperty;
3887
3888         DNPRINTF(SWM_D_EVENT, "propertynotify: window: %lu\n",
3889             ev->window);
3890
3891         if (ev->state == PropertyDelete)
3892                 return; /* ignore */
3893         win = find_window(ev->window);
3894         if (win == NULL)
3895                 return;
3896
3897         switch (ev->atom) {
3898         case XA_WM_NORMAL_HINTS:
3899 #if 0
3900                 long            mask;
3901                 XGetWMNormalHints(display, win->id, &win->sh, &mask);
3902                 fprintf(stderr, "normal hints: flag 0x%x\n", win->sh.flags);
3903                 if (win->sh.flags & PMinSize) {
3904                         win->g.w = win->sh.min_width;
3905                         win->g.h = win->sh.min_height;
3906                         fprintf(stderr, "min %d %d\n", win->g.w, win->g.h);
3907                 }
3908                 XMoveResizeWindow(display, win->id,
3909                     win->g.x, win->g.y, win->g.w, win->g.h);
3910 #endif
3911                 break;
3912         default:
3913                 break;
3914         }
3915 }
3916
3917 void
3918 unmapnotify(XEvent *e)
3919 {
3920         struct ws_win           *win, *winfocus = NULL;
3921         struct workspace        *ws;
3922
3923         DNPRINTF(SWM_D_EVENT, "unmapnotify: window: %lu\n", e->xunmap.window);
3924
3925         /* determine if we need to help unmanage this window */
3926         win = find_window(e->xunmap.window);
3927         if (win == NULL)
3928                 return;
3929
3930         /* igonore transients and floaters, like mplayer */
3931         if (win->transient || win->floating)
3932                 return;
3933
3934         /* java can not deal with this heuristic */
3935         if (win->java)
3936                 return;
3937
3938         if (getstate(e->xunmap.window) == NormalState) {
3939                 /*
3940                  * this window does not have a destroy event but but it is no
3941                  * longer visible due to the app unmapping it so unmanage it
3942                  */
3943                 ws = win->ws;
3944                 /* if we are max_stack try harder to focus on something */
3945                 if (ws->cur_layout->flags & SWM_L_FOCUSPREV) {
3946                         if (win->transient)
3947                                 winfocus = find_window(win->transient);
3948                         else if (win != ws->focus_prev)
3949                                 winfocus = ws->focus_prev;
3950                         else if (win != ws->focus)
3951                                 winfocus = ws->focus;
3952                 }
3953
3954                 /* normal and fallback if haven't found anything to focus on */
3955                 if (winfocus == NULL) {
3956                         winfocus = TAILQ_PREV(win, ws_win_list, entry);
3957                         if (TAILQ_FIRST(&ws->winlist) == win)
3958                                 winfocus = TAILQ_NEXT(win, entry);
3959                         else {
3960                                 if (ws->focus)
3961                                         winfocus = TAILQ_PREV(ws->focus,
3962                                             ws_win_list, entry);
3963                                 if (winfocus == NULL)
3964                                         winfocus = TAILQ_LAST(&ws->winlist,
3965                                             ws_win_list);
3966                         }
3967                 }
3968
3969                 /* trash window and refocus */
3970                 unmanage_window(win);
3971                 ignore_enter = 1;
3972                 stack();
3973                 focus_win(winfocus);
3974                 ignore_enter = 0;
3975         }
3976 }
3977
3978 void
3979 visibilitynotify(XEvent *e)
3980 {
3981         int                     i;
3982         struct swm_region       *r;
3983
3984         DNPRINTF(SWM_D_EVENT, "visibilitynotify: window: %lu\n",
3985             e->xvisibility.window);
3986         if (e->xvisibility.state == VisibilityUnobscured)
3987                 for (i = 0; i < ScreenCount(display); i++)
3988                         TAILQ_FOREACH(r, &screens[i].rl, entry)
3989                                 if (e->xvisibility.window == r->bar_window)
3990                                         bar_update();
3991 }
3992
3993 int
3994 xerror_start(Display *d, XErrorEvent *ee)
3995 {
3996         other_wm = 1;
3997         return (-1);
3998 }
3999
4000 int
4001 xerror(Display *d, XErrorEvent *ee)
4002 {
4003         /* fprintf(stderr, "error: %p %p\n", display, ee); */
4004         return (-1);
4005 }
4006
4007 int
4008 active_wm(void)
4009 {
4010         other_wm = 0;
4011         xerrorxlib = XSetErrorHandler(xerror_start);
4012
4013         /* this causes an error if some other window manager is running */
4014         XSelectInput(display, DefaultRootWindow(display),
4015             SubstructureRedirectMask);
4016         XSync(display, False);
4017         if (other_wm)
4018                 return (1);
4019
4020         XSetErrorHandler(xerror);
4021         XSync(display, False);
4022         return (0);
4023 }
4024
4025 void
4026 new_region(struct swm_screen *s, int x, int y, int w, int h)
4027 {
4028         struct swm_region       *r, *n;
4029         struct workspace        *ws = NULL;
4030         int                     i;
4031
4032         DNPRINTF(SWM_D_MISC, "new region: screen[%d]:%dx%d+%d+%d\n",
4033              s->idx, w, h, x, y);
4034
4035         /* remove any conflicting regions */
4036         n = TAILQ_FIRST(&s->rl);
4037         while (n) {
4038                 r = n;
4039                 n = TAILQ_NEXT(r, entry);
4040                 if (X(r) < (x + w) &&
4041                     (X(r) + WIDTH(r)) > x &&
4042                     Y(r) < (y + h) &&
4043                     (Y(r) + HEIGHT(r)) > y) {
4044                         XDestroyWindow(display, r->bar_window);
4045                         TAILQ_REMOVE(&s->rl, r, entry);
4046                         TAILQ_INSERT_TAIL(&s->orl, r, entry);
4047                 }
4048         }
4049
4050         /* search old regions for one to reuse */
4051
4052         /* size + location match */
4053         TAILQ_FOREACH(r, &s->orl, entry)
4054                 if (X(r) == x && Y(r) == y &&
4055                     HEIGHT(r) == h && WIDTH(r) == w)
4056                         break;
4057
4058         /* size match */
4059         TAILQ_FOREACH(r, &s->orl, entry)
4060                 if (HEIGHT(r) == h && WIDTH(r) == w)
4061                         break;
4062
4063         if (r != NULL) {
4064                 TAILQ_REMOVE(&s->orl, r, entry);
4065                 /* try to use old region's workspace */
4066                 if (r->ws->r == NULL)
4067                         ws = r->ws;
4068         } else
4069                 if ((r = calloc(1, sizeof(struct swm_region))) == NULL)
4070                         errx(1, "calloc: failed to allocate memory for screen");
4071
4072         /* if we don't have a workspace already, find one */
4073         if (ws == NULL) {
4074                 for (i = 0; i < SWM_WS_MAX; i++)
4075                         if (s->ws[i].r == NULL) {
4076                                 ws = &s->ws[i];
4077                                 break;
4078                         }
4079         }
4080
4081         if (ws == NULL)
4082                 errx(1, "no free workspaces\n");
4083
4084         X(r) = x;
4085         Y(r) = y;
4086         WIDTH(r) = w;
4087         HEIGHT(r) = h;
4088         r->s = s;
4089         r->ws = ws;
4090         ws->r = r;
4091         TAILQ_INSERT_TAIL(&s->rl, r, entry);
4092 }
4093
4094 void
4095 scan_xrandr(int i)
4096 {
4097 #ifdef SWM_XRR_HAS_CRTC
4098         XRRCrtcInfo             *ci;
4099         XRRScreenResources      *sr;
4100         int                     c;
4101         int                     ncrtc = 0;
4102 #endif /* SWM_XRR_HAS_CRTC */
4103         struct swm_region       *r;
4104
4105
4106         if (i >= ScreenCount(display))
4107                 errx(1, "invalid screen");
4108
4109         /* remove any old regions */
4110         while ((r = TAILQ_FIRST(&screens[i].rl)) != NULL) {
4111                 r->ws->old_r = r->ws->r = NULL;
4112                 XDestroyWindow(display, r->bar_window);
4113                 TAILQ_REMOVE(&screens[i].rl, r, entry);
4114                 TAILQ_INSERT_TAIL(&screens[i].orl, r, entry);
4115         }
4116
4117         /* map virtual screens onto physical screens */
4118 #ifdef SWM_XRR_HAS_CRTC
4119         outputs = 0;
4120         if (xrandr_support) {
4121                 sr = XRRGetScreenResources(display, screens[i].root);
4122                 if (sr == NULL)
4123                         new_region(&screens[i], 0, 0,
4124                             DisplayWidth(display, i),
4125                             DisplayHeight(display, i));
4126                 else
4127                         ncrtc = sr->ncrtc;
4128
4129                 for (c = 0, ci = NULL; c < ncrtc; c++) {
4130                         ci = XRRGetCrtcInfo(display, sr, sr->crtcs[c]);
4131                         if (ci->noutput == 0)
4132                                 continue;
4133                         outputs++;
4134
4135                         if (ci != NULL && ci->mode == None)
4136                                 new_region(&screens[i], 0, 0,
4137                                     DisplayWidth(display, i),
4138                                     DisplayHeight(display, i));
4139                         else
4140                                 new_region(&screens[i],
4141                                     ci->x, ci->y, ci->width, ci->height);
4142                 }
4143                 if (ci)
4144                         XRRFreeCrtcInfo(ci);
4145                 XRRFreeScreenResources(sr);
4146         } else
4147 #endif /* SWM_XRR_HAS_CRTC */
4148         {
4149                 new_region(&screens[i], 0, 0, DisplayWidth(display, i),
4150                     DisplayHeight(display, i));
4151         }
4152 }
4153
4154 void
4155 screenchange(XEvent *e) {
4156         XRRScreenChangeNotifyEvent      *xe = (XRRScreenChangeNotifyEvent *)e;
4157         struct swm_region               *r;
4158         int                             i;
4159
4160         DNPRINTF(SWM_D_EVENT, "screenchange: %lu\n", xe->root);
4161
4162         if (!XRRUpdateConfiguration(e))
4163                 return;
4164
4165         /* silly event doesn't include the screen index */
4166         for (i = 0; i < ScreenCount(display); i++)
4167                 if (screens[i].root == xe->root)
4168                         break;
4169         if (i >= ScreenCount(display))
4170                 errx(1, "screenchange: screen not found\n");
4171
4172         /* brute force for now, just re-enumerate the regions */
4173         scan_xrandr(i);
4174
4175         /* add bars to all regions */
4176         for (i = 0; i < ScreenCount(display); i++)
4177                 TAILQ_FOREACH(r, &screens[i].rl, entry)
4178                         bar_setup(r);
4179         stack();
4180 }
4181
4182 void
4183 setup_screens(void)
4184 {
4185         Window                  d1, d2, *wins = NULL;
4186         XWindowAttributes       wa;
4187         unsigned int            no;
4188         int                     i, j, k;
4189         int                     errorbase, major, minor;
4190         struct workspace        *ws;
4191         int                     ws_idx_atom;
4192         long                    state, manage;
4193
4194         if ((screens = calloc(ScreenCount(display),
4195              sizeof(struct swm_screen))) == NULL)
4196                 errx(1, "calloc: screens");
4197
4198         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
4199
4200         /* initial Xrandr setup */
4201         xrandr_support = XRRQueryExtension(display,
4202             &xrandr_eventbase, &errorbase);
4203         if (xrandr_support)
4204                 if (XRRQueryVersion(display, &major, &minor) && major < 1)
4205                         xrandr_support = 0;
4206
4207         /* map physical screens */
4208         for (i = 0; i < ScreenCount(display); i++) {
4209                 DNPRINTF(SWM_D_WS, "setup_screens: init screen %d\n", i);
4210                 screens[i].idx = i;
4211                 TAILQ_INIT(&screens[i].rl);
4212                 TAILQ_INIT(&screens[i].orl);
4213                 screens[i].root = RootWindow(display, i);
4214
4215                 /* set default colors */
4216                 setscreencolor("red", i + 1, SWM_S_COLOR_FOCUS);
4217                 setscreencolor("rgb:88/88/88", i + 1, SWM_S_COLOR_UNFOCUS);
4218                 setscreencolor("rgb:00/80/80", i + 1, SWM_S_COLOR_BAR_BORDER);
4219                 setscreencolor("black", i + 1, SWM_S_COLOR_BAR);
4220                 setscreencolor("rgb:a0/a0/a0", i + 1, SWM_S_COLOR_BAR_FONT);
4221
4222                 /* init all workspaces */
4223                 /* XXX these should be dynamically allocated too */
4224                 for (j = 0; j < SWM_WS_MAX; j++) {
4225                         ws = &screens[i].ws[j];
4226                         ws->idx = j;
4227                         ws->focus = NULL;
4228                         ws->r = NULL;
4229                         ws->old_r = NULL;
4230                         TAILQ_INIT(&ws->winlist);
4231
4232                         for (k = 0; layouts[k].l_stack != NULL; k++)
4233                                 if (layouts[k].l_config != NULL)
4234                                         layouts[k].l_config(ws,
4235                                             SWM_ARG_ID_STACKINIT);
4236                         ws->cur_layout = &layouts[0];
4237                 }
4238                 /* grab existing windows (before we build the bars)*/
4239                 if (!XQueryTree(display, screens[i].root, &d1, &d2, &wins, &no))
4240                         continue;
4241
4242                 scan_xrandr(i);
4243
4244                 if (xrandr_support)
4245                         XRRSelectInput(display, screens[i].root,
4246                             RRScreenChangeNotifyMask);
4247
4248                 /* attach windows to a region */
4249                 /* normal windows */
4250                 for (j = 0; j < no; j++) {
4251                         if (!XGetWindowAttributes(display, wins[j], &wa) ||
4252                             wa.override_redirect ||
4253                             XGetTransientForHint(display, wins[j], &d1))
4254                                 continue;
4255
4256                         state = getstate(wins[j]);
4257                         manage = state == NormalState || state == IconicState;
4258                         if (wa.map_state == IsViewable || manage)
4259                                 manage_window(wins[j]);
4260                 }
4261                 /* transient windows */
4262                 for (j = 0; j < no; j++) {
4263                         if (!XGetWindowAttributes(display, wins[j], &wa) ||
4264                             wa.override_redirect)
4265                                 continue;
4266
4267                         state = getstate(wins[j]);
4268                         manage = state == NormalState || state == IconicState;
4269                         if (XGetTransientForHint(display, wins[j], &d1) &&
4270                             manage)
4271                                 manage_window(wins[j]);
4272                 }
4273                 if (wins) {
4274                         XFree(wins);
4275                         wins = NULL;
4276                 }
4277         }
4278 }
4279
4280 void
4281 setup_globals(void)
4282 {
4283         if ((bar_fonts[0] = strdup("-*-terminus-medium-*-*-*-*-*-*-*-*-*-*-*"))
4284             == NULL)
4285                 err(1, "setup_globals: strdup");
4286         if ((bar_fonts[1] = strdup("-*-times-medium-r-*-*-*-*-*-*-*-*-*-*"))
4287             == NULL)
4288                 err(1, "setup_globals: strdup");
4289         if ((bar_fonts[2] = strdup("-misc-fixed-medium-r-*-*-*-*-*-*-*-*-*-*"))
4290             == NULL)
4291                 err(1, "setup_globals: strdup");
4292         if ((spawn_term[0] = strdup("xterm")) == NULL)
4293                 err(1, "setup_globals: strdup");
4294 }
4295
4296 void
4297 workaround(void)
4298 {
4299         int                     i;
4300         Atom                    netwmcheck, netwmname, utf8_string;
4301         Window                  root;
4302
4303         /* work around sun jdk bugs, code from wmname */
4304         netwmcheck = XInternAtom(display, "_NET_SUPPORTING_WM_CHECK", False);
4305         netwmname = XInternAtom(display, "_NET_WM_NAME", False);
4306         utf8_string = XInternAtom(display, "UTF8_STRING", False);
4307         for (i = 0; i < ScreenCount(display); i++) {
4308                 root = screens[i].root;
4309                 XChangeProperty(display, root, netwmcheck, XA_WINDOW, 32,
4310                     PropModeReplace, (unsigned char *)&root, 1);
4311                 XChangeProperty(display, root, netwmname, utf8_string, 8,
4312                     PropModeReplace, "LG3D", strlen("LG3D"));
4313         }
4314 }
4315
4316 int
4317 main(int argc, char *argv[])
4318 {
4319         struct passwd           *pwd;
4320         struct swm_region       *r, *rr;
4321         struct ws_win           *winfocus = NULL;
4322         struct timeval          tv;
4323         char                    conf[PATH_MAX], *cfile = NULL;
4324         struct stat             sb;
4325         XEvent                  e;
4326         int                     xfd, i;
4327         fd_set                  rd;
4328
4329         start_argv = argv;
4330         fprintf(stderr, "Welcome to scrotwm V%s cvs tag: %s\n",
4331             SWM_VERSION, cvstag);
4332         if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
4333                 warnx("no locale support");
4334
4335         if (!(display = XOpenDisplay(0)))
4336                 errx(1, "can not open display");
4337
4338         if (active_wm())
4339                 errx(1, "other wm running");
4340
4341         /* handle some signale */
4342         installsignal(SIGINT, "INT");
4343         installsignal(SIGHUP, "HUP");
4344         installsignal(SIGQUIT, "QUIT");
4345         installsignal(SIGTERM, "TERM");
4346         installsignal(SIGCHLD, "CHLD");
4347
4348         astate = XInternAtom(display, "WM_STATE", False);
4349         aprot = XInternAtom(display, "WM_PROTOCOLS", False);
4350         adelete = XInternAtom(display, "WM_DELETE_WINDOW", False);
4351         takefocus = XInternAtom(display, "WM_TAKE_FOCUS", False);
4352
4353         /* look for local and global conf file */
4354         pwd = getpwuid(getuid());
4355         if (pwd == NULL)
4356                 errx(1, "invalid user %d", getuid());
4357
4358         setup_screens();
4359         setup_globals();
4360         setup_keys();
4361         setup_quirks();
4362         setup_spawn();
4363
4364         snprintf(conf, sizeof conf, "%s/.%s", pwd->pw_dir, SWM_CONF_FILE);
4365         if (stat(conf, &sb) != -1) {
4366                 if (S_ISREG(sb.st_mode))
4367                         cfile = conf;
4368         } else {
4369                 /* try global conf file */
4370                 snprintf(conf, sizeof conf, "/etc/%s", SWM_CONF_FILE);
4371                 if (!stat(conf, &sb))
4372                         if (S_ISREG(sb.st_mode))
4373                                 cfile = conf;
4374         }
4375         if (cfile)
4376                 conf_load(cfile);
4377
4378         /* setup all bars */
4379         for (i = 0; i < ScreenCount(display); i++)
4380                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
4381                         if (winfocus == NULL)
4382                                 winfocus = TAILQ_FIRST(&r->ws->winlist);
4383                         bar_setup(r);
4384                 }
4385
4386         /* set some values to work around bad programs */
4387         workaround();
4388
4389         grabkeys();
4390         stack();
4391
4392         xfd = ConnectionNumber(display);
4393         while (running) {
4394                 while (XPending(display)) {
4395                         XNextEvent(display, &e);
4396                         if (running == 0)
4397                                 goto done;
4398                         if (e.type < LASTEvent) {
4399                                 dumpevent(&e);
4400                                 if (handler[e.type])
4401                                         handler[e.type](&e);
4402                                 else
4403                                         DNPRINTF(SWM_D_EVENT,
4404                                             "win: %lu unknown event: %d\n",
4405                                             e.xany.window, e.type);
4406                         } else {
4407                                 switch (e.type - xrandr_eventbase) {
4408                                 case RRScreenChangeNotify:
4409                                         screenchange(&e);
4410                                         break;
4411                                 default:
4412                                         DNPRINTF(SWM_D_EVENT,
4413                                             "win: %lu unknown xrandr event: "
4414                                             "%d\n", e.xany.window, e.type);
4415                                         break;
4416                                 }
4417                         }
4418                 }
4419
4420                 /* if we are being restarted go focus on first window */
4421                 if (winfocus) {
4422                         rr = TAILQ_FIRST(&screens[0].rl);
4423                         /* move pointer to first screen if multi screen */
4424                         if (ScreenCount(display) > 1 || outputs > 1)
4425                                 XWarpPointer(display, None, rr->s[0].root,
4426                                     0, 0, 0, 0, rr->g.x,
4427                                     rr->g.y + bar_enabled ? bar_height : 0);
4428
4429                         focus_win(winfocus);
4430                         winfocus = NULL;
4431                         continue;
4432                 }
4433
4434                 FD_ZERO(&rd);
4435                 FD_SET(xfd, &rd);
4436                 tv.tv_sec = 1;
4437                 tv.tv_usec = 0;
4438                 if (select(xfd + 1, &rd, NULL, NULL, &tv) == -1)
4439                         if (errno != EINTR)
4440                                 DNPRINTF(SWM_D_MISC, "select failed");
4441                 if (running == 0)
4442                         goto done;
4443                 if (bar_alarm) {
4444                         bar_alarm = 0;
4445                         bar_update();
4446                 }
4447         }
4448 done:
4449         bar_extra_stop();
4450
4451         XCloseDisplay(display);
4452
4453         return (0);
4454 }