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     "0.9.14"
  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_dumpwins,
 308         kf_spawn_lock,
 309         kf_spawn_initscr,
 310         kf_spawn_custom,
 311         kf_invalid
 312 };
 313
 314 /* layout handlers */
 315 void    stack(void);
 316 void    vertical_config(struct workspace *, int);
 317 void    vertical_stack(struct workspace *, struct swm_geometry *);
 318 void    horizontal_config(struct workspace *, int);
 319 void    horizontal_stack(struct workspace *, struct swm_geometry *);
 320 void    max_stack(struct workspace *, struct swm_geometry *);
 321
 322 void    grabbuttons(struct ws_win *, int);
 323 void    new_region(struct swm_screen *, int, int, int, int);
 324 void    unmanage_window(struct ws_win *);
 325 long    getstate(Window);
 326
 327 struct layout {
 328         void            (*l_stack)(struct workspace *, struct swm_geometry *);
 329         void            (*l_config)(struct workspace *, int);
 330         u_int32_t       flags;
 331 #define SWM_L_FOCUSPREV         (1<<0)
 332 #define SWM_L_MAPONFOCUS        (1<<1)
 333         char            *name;
 334 } layouts[] =  {
 335         /* stack,               configure */
 336         { vertical_stack,       vertical_config,        0,      "[|]" },
 337         { horizontal_stack,     horizontal_config,      0,      "[-]" },
 338         { max_stack,            NULL,
 339           SWM_L_FOCUSPREV | SWM_L_MAPONFOCUS,                   "[ ]"},
 340         { NULL,                 NULL,                   0},
 341 };
 342
 343 #define SWM_H_SLICE             (32)
 344 #define SWM_V_SLICE             (32)
 345
 346 /* define work spaces */
 347 struct workspace {
 348         int                     idx;            /* workspace index */
 349         struct layout           *cur_layout;    /* current layout handlers */
 350         struct ws_win           *focus;         /* may be NULL */
 351         struct ws_win           *focus_prev;    /* may be NULL */
 352         struct swm_region       *r;             /* may be NULL */
 353         struct swm_region       *old_r;         /* may be NULL */
 354         struct ws_win_list      winlist;        /* list of windows in ws */
 355         struct ws_win_list      unmanagedlist;  /* list of dead windows in ws */
 356
 357         /* stacker state */
 358         struct {
 359                                 int horizontal_msize;
 360                                 int horizontal_mwin;
 361                                 int horizontal_stacks;
 362                                 int vertical_msize;
 363                                 int vertical_mwin;
 364                                 int vertical_stacks;
 365         } l_state;
 366 };
 367
 368 enum    { SWM_S_COLOR_BAR, SWM_S_COLOR_BAR_BORDER, SWM_S_COLOR_BAR_FONT,
 369           SWM_S_COLOR_FOCUS, SWM_S_COLOR_UNFOCUS, SWM_S_COLOR_MAX };
 370
 371 /* physical screen mapping */
 372 #define SWM_WS_MAX              (10)            /* XXX Too small? */
 373 struct swm_screen {
 374         int                     idx;            /* screen index */
 375         struct swm_region_list  rl;     /* list of regions on this screen */
 376         struct swm_region_list  orl;    /* list of old regions */
 377         Window                  root;
 378         struct workspace        ws[SWM_WS_MAX];
 379
 380         /* colors */
 381         struct {
 382                 unsigned long   color;
 383                 char            *name;
 384         } c[SWM_S_COLOR_MAX];
 385 };
 386 struct swm_screen       *screens;
 387 int                     num_screens;
 388
 389 /* args to functions */
 390 union arg {
 391         int                     id;
 392 #define SWM_ARG_ID_FOCUSNEXT    (0)
 393 #define SWM_ARG_ID_FOCUSPREV    (1)
 394 #define SWM_ARG_ID_FOCUSMAIN    (2)
 395 #define SWM_ARG_ID_SWAPNEXT     (3)
 396 #define SWM_ARG_ID_SWAPPREV     (4)
 397 #define SWM_ARG_ID_SWAPMAIN     (5)
 398 #define SWM_ARG_ID_MASTERSHRINK (6)
 399 #define SWM_ARG_ID_MASTERGROW   (7)
 400 #define SWM_ARG_ID_MASTERADD    (8)
 401 #define SWM_ARG_ID_MASTERDEL    (9)
 402 #define SWM_ARG_ID_STACKRESET   (10)
 403 #define SWM_ARG_ID_STACKINIT    (11)
 404 #define SWM_ARG_ID_CYCLEWS_UP   (12)
 405 #define SWM_ARG_ID_CYCLEWS_DOWN (13)
 406 #define SWM_ARG_ID_CYCLESC_UP   (14)
 407 #define SWM_ARG_ID_CYCLESC_DOWN (15)
 408 #define SWM_ARG_ID_STACKINC     (16)
 409 #define SWM_ARG_ID_STACKDEC     (17)
 410 #define SWM_ARG_ID_SS_ALL       (0)
 411 #define SWM_ARG_ID_SS_WINDOW    (1)
 412 #define SWM_ARG_ID_DONTCENTER   (0)
 413 #define SWM_ARG_ID_CENTER       (1)
 414 #define SWM_ARG_ID_KILLWINDOW   (0)
 415 #define SWM_ARG_ID_DELETEWINDOW (1)
 416         char                    **argv;
 417 };
 418
 419 /* quirks */
 420 struct quirk {
 421         char                    *class;
 422         char                    *name;
 423         unsigned long           quirk;
 424 #define SWM_Q_FLOAT             (1<<0)  /* float this window */
 425 #define SWM_Q_TRANSSZ           (1<<1)  /* transiend window size too small */
 426 #define SWM_Q_ANYWHERE          (1<<2)  /* don't position this window */
 427 #define SWM_Q_XTERM_FONTADJ     (1<<3)  /* adjust xterm fonts when resizing */
 428 #define SWM_Q_FULLSCREEN        (1<<4)  /* remove border */
 429 };
 430 int                             quirks_size = 0, quirks_length = 0;
 431 struct quirk                    *quirks = NULL;
 432
 433 /* events */
 434 #ifdef SWM_DEBUG
 435 void
 436 dumpevent(XEvent *e)
 437 {
 438         char                    *name = NULL;
 439
 440         switch (e->type) {
 441         case KeyPress:
 442                 name = "KeyPress";
 443                 break;
 444         case KeyRelease:
 445                 name = "KeyRelease";
 446                 break;
 447         case ButtonPress:
 448                 name = "ButtonPress";
 449                 break;
 450         case ButtonRelease:
 451                 name = "ButtonRelease";
 452                 break;
 453         case MotionNotify:
 454                 name = "MotionNotify";
 455                 break;
 456         case EnterNotify:
 457                 name = "EnterNotify";
 458                 break;
 459         case LeaveNotify:
 460                 name = "LeaveNotify";
 461                 break;
 462         case FocusIn:
 463                 name = "FocusIn";
 464                 break;
 465         case FocusOut:
 466                 name = "FocusOut";
 467                 break;
 468         case KeymapNotify:
 469                 name = "KeymapNotify";
 470                 break;
 471         case Expose:
 472                 name = "Expose";
 473                 break;
 474         case GraphicsExpose:
 475                 name = "GraphicsExpose";
 476                 break;
 477         case NoExpose:
 478                 name = "NoExpose";
 479                 break;
 480         case VisibilityNotify:
 481                 name = "VisibilityNotify";
 482                 break;
 483         case CreateNotify:
 484                 name = "CreateNotify";
 485                 break;
 486         case DestroyNotify:
 487                 name = "DestroyNotify";
 488                 break;
 489         case UnmapNotify:
 490                 name = "UnmapNotify";
 491                 break;
 492         case MapNotify:
 493                 name = "MapNotify";
 494                 break;
 495         case MapRequest:
 496                 name = "MapRequest";
 497                 break;
 498         case ReparentNotify:
 499                 name = "ReparentNotify";
 500                 break;
 501         case ConfigureNotify:
 502                 name = "ConfigureNotify";
 503                 break;
 504         case ConfigureRequest:
 505                 name = "ConfigureRequest";
 506                 break;
 507         case GravityNotify:
 508                 name = "GravityNotify";
 509                 break;
 510         case ResizeRequest:
 511                 name = "ResizeRequest";
 512                 break;
 513         case CirculateNotify:
 514                 name = "CirculateNotify";
 515                 break;
 516         case CirculateRequest:
 517                 name = "CirculateRequest";
 518                 break;
 519         case PropertyNotify:
 520                 name = "PropertyNotify";
 521                 break;
 522         case SelectionClear:
 523                 name = "SelectionClear";
 524                 break;
 525         case SelectionRequest:
 526                 name = "SelectionRequest";
 527                 break;
 528         case SelectionNotify:
 529                 name = "SelectionNotify";
 530                 break;
 531         case ColormapNotify:
 532                 name = "ColormapNotify";
 533                 break;
 534         case ClientMessage:
 535                 name = "ClientMessage";
 536                 break;
 537         case MappingNotify:
 538                 name = "MappingNotify";
 539                 break;
 540         }
 541
 542         if (name)
 543                 DNPRINTF(SWM_D_EVENTQ ,"window: %lu event: %s (%d), %d "
 544                     "remaining\n",
 545                     e->xany.window, name, e->type, QLength(display));
 546         else
 547                 DNPRINTF(SWM_D_EVENTQ, "window: %lu unknown event %d, %d "
 548                     "remaining\n",
 549                     e->xany.window, e->type, QLength(display));
 550 }
 551
 552 void
 553 dumpwins(struct swm_region *r, union arg *args)
 554 {
 555         struct ws_win           *win;
 556         unsigned int            state;
 557         XWindowAttributes       wa;
 558
 559         if (r->ws == NULL) {
 560                 fprintf(stderr, "invalid workspace\n");
 561                 return;
 562         }
 563
 564         fprintf(stderr, "=== managed window list ws %02d ===\n", r->ws->idx);
 565
 566         TAILQ_FOREACH(win, &r->ws->winlist, entry) {
 567                 state = getstate(win->id);
 568                 if (!XGetWindowAttributes(display, win->id, &wa))
 569                         fprintf(stderr, "window: %lu failed "
 570                             "XGetWindowAttributes\n", win->id);
 571                 fprintf(stderr, "window: %lu map_state: %d state: %d\n",
 572                     win->id, wa.map_state, state);
 573         }
 574
 575         fprintf(stderr, "===== unmanaged window list =====\n");
 576         TAILQ_FOREACH(win, &r->ws->unmanagedlist, entry) {
 577                 state = getstate(win->id);
 578                 if (!XGetWindowAttributes(display, win->id, &wa))
 579                         fprintf(stderr, "window: %lu failed "
 580                             "XGetWindowAttributes\n", win->id);
 581                 fprintf(stderr, "window: %lu map_state: %d state: %d\n",
 582                     win->id, wa.map_state, state);
 583         }
 584
 585         fprintf(stderr, "=================================\n");
 586 }
 587 #else
 588 #define dumpevent(e)
 589 void
 590 dumpwins(struct swm_region *r, union arg *args)
 591 {
 592 }
 593 #endif /* SWM_DEBUG */
 594
 595 void                    expose(XEvent *);
 596 void                    keypress(XEvent *);
 597 void                    buttonpress(XEvent *);
 598 void                    configurerequest(XEvent *);
 599 void                    configurenotify(XEvent *);
 600 void                    destroynotify(XEvent *);
 601 void                    enternotify(XEvent *);
 602 void                    focusin(XEvent *);
 603 void                    focusout(XEvent *);
 604 void                    mapnotify(XEvent *);
 605 void                    mappingnotify(XEvent *);
 606 void                    maprequest(XEvent *);
 607 void                    propertynotify(XEvent *);
 608 void                    unmapnotify(XEvent *);
 609 void                    visibilitynotify(XEvent *);
 610
 611 void                    (*handler[LASTEvent])(XEvent *) = {
 612                                 [Expose] = expose,
 613                                 [KeyPress] = keypress,
 614                                 [ButtonPress] = buttonpress,
 615                                 [ConfigureRequest] = configurerequest,
 616                                 [ConfigureNotify] = configurenotify,
 617                                 [DestroyNotify] = destroynotify,
 618                                 [EnterNotify] = enternotify,
 619                                 [FocusIn] = focusin,
 620                                 [FocusOut] = focusout,
 621                                 [MapNotify] = mapnotify,
 622                                 [MappingNotify] = mappingnotify,
 623                                 [MapRequest] = maprequest,
 624                                 [PropertyNotify] = propertynotify,
 625                                 [UnmapNotify] = unmapnotify,
 626                                 [VisibilityNotify] = visibilitynotify,
 627 };
 628
 629 void
 630 sighdlr(int sig)
 631 {
 632         pid_t                   pid;
 633
 634         switch (sig) {
 635         case SIGCHLD:
 636                 while ((pid = waitpid(WAIT_ANY, NULL, WNOHANG)) != -1) {
 637                         DNPRINTF(SWM_D_MISC, "reaping: %d\n", pid);
 638                         if (pid <= 0)
 639                                 break;
 640                 }
 641                 break;
 642         case SIGINT:
 643         case SIGTERM:
 644         case SIGHUP:
 645         case SIGQUIT:
 646                 running = 0;
 647                 break;
 648         }
 649 }
 650
 651 void
 652 installsignal(int sig, char *name)
 653 {
 654         struct sigaction        sa;
 655
 656         sa.sa_handler = sighdlr;
 657         sigemptyset(&sa.sa_mask);
 658         sa.sa_flags = 0;
 659         if (sigaction(sig, &sa, NULL) == -1)
 660                 err(1, "could not install %s handler", name);
 661 }
 662
 663 unsigned long
 664 name_to_color(char *colorname)
 665 {
 666         Colormap                cmap;
 667         Status                  status;
 668         XColor                  screen_def, exact_def;
 669         unsigned long           result = 0;
 670         char                    cname[32] = "#";
 671
 672         cmap = DefaultColormap(display, screens[0].idx);
 673         status = XAllocNamedColor(display, cmap, colorname,
 674             &screen_def, &exact_def);
 675         if (!status) {
 676                 strlcat(cname, colorname + 2, sizeof cname - 1);
 677                 status = XAllocNamedColor(display, cmap, cname, &screen_def,
 678                     &exact_def);
 679         }
 680         if (status)
 681                 result = screen_def.pixel;
 682         else
 683                 fprintf(stderr, "color '%s' not found.\n", colorname);
 684
 685         return (result);
 686 }
 687
 688 void
 689 setscreencolor(char *val, int i, int c)
 690 {
 691         if (i > 0 && i <= ScreenCount(display)) {
 692                 screens[i - 1].c[c].color = name_to_color(val);
 693                 free(screens[i - 1].c[c].name);
 694                 if ((screens[i - 1].c[c].name = strdup(val)) == NULL)
 695                         errx(1, "strdup");
 696         } else if (i == -1) {
 697                 for (i = 0; i < ScreenCount(display); i++) {
 698                         screens[i].c[c].color = name_to_color(val);
 699                         free(screens[i].c[c].name);
 700                         if ((screens[i].c[c].name = strdup(val)) == NULL)
 701                                 errx(1, "strdup");
 702                 }
 703         } else
 704                 errx(1, "invalid screen index: %d out of bounds (maximum %d)\n",
 705                     i, ScreenCount(display));
 706 }
 707
 708 void
 709 custom_region(char *val)
 710 {
 711         unsigned int                    sidx, x, y, w, h;
 712
 713         if (sscanf(val, "screen[%u]:%ux%u+%u+%u", &sidx, &w, &h, &x, &y) != 5)
 714                 errx(1, "invalid custom region, "
 715                     "should be 'screen[<n>]:<n>x<n>+<n>+<n>\n");
 716         if (sidx < 1 || sidx > ScreenCount(display))
 717                 errx(1, "invalid screen index: %d out of bounds (maximum %d)\n",
 718                     sidx, ScreenCount(display));
 719         sidx--;
 720
 721         if (w < 1 || h < 1)
 722                 errx(1, "region %ux%u+%u+%u too small\n", w, h, x, y);
 723
 724         if (x  < 0 || x > DisplayWidth(display, sidx) ||
 725             y < 0 || y > DisplayHeight(display, sidx) ||
 726             w + x > DisplayWidth(display, sidx) ||
 727             h + y > DisplayHeight(display, sidx))
 728                 errx(1, "region %ux%u+%u+%u not within screen boundaries "
 729                     "(%ux%u)\n", w, h, x, y,
 730                     DisplayWidth(display, sidx), DisplayHeight(display, sidx));
 731
 732         new_region(&screens[sidx], x, y, w, h);
 733 }
 734
 735 void
 736 socket_setnonblock(int fd)
 737 {
 738         int                     flags;
 739
 740         if ((flags = fcntl(fd, F_GETFL, 0)) == -1)
 741                 err(1, "fcntl F_GETFL");
 742         flags |= O_NONBLOCK;
 743         if ((flags = fcntl(fd, F_SETFL, flags)) == -1)
 744                 err(1, "fcntl F_SETFL");
 745 }
 746
 747 void
 748 bar_print(struct swm_region *r, char *s)
 749 {
 750         XClearWindow(display, r->bar_window);
 751         XSetForeground(display, bar_gc, r->s->c[SWM_S_COLOR_BAR_FONT].color);
 752         XDrawString(display, r->bar_window, bar_gc, 4, bar_fs->ascent, s,
 753             strlen(s));
 754 }
 755
 756 void
 757 bar_extra_stop(void)
 758 {
 759         if (bar_pipe[0]) {
 760                 close(bar_pipe[0]);
 761                 bzero(bar_pipe, sizeof bar_pipe);
 762         }
 763         if (bar_pid) {
 764                 kill(bar_pid, SIGTERM);
 765                 bar_pid = 0;
 766         }
 767         strlcpy(bar_ext, "", sizeof bar_ext);
 768         bar_extra = 0;
 769 }
 770
 771 void
 772 bar_class_name(char *s, ssize_t sz, struct ws_win *cur_focus)
 773 {
 774         int                     do_class, do_name;
 775         Status                  status;
 776         XClassHint              *xch = NULL;
 777
 778         if ((title_name_enabled == 1 || title_class_enabled == 1) &&
 779             cur_focus != NULL) {
 780                 if ((xch = XAllocClassHint()) == NULL)
 781                         goto out;
 782                 status = XGetClassHint(display, cur_focus->id, xch);
 783                 if (status == BadWindow || status == BadAlloc)
 784                         goto out;
 785                 do_class = (title_class_enabled && xch->res_class != NULL);
 786                 do_name = (title_name_enabled && xch->res_name != NULL);
 787                 if (do_class)
 788                         strlcat(s, xch->res_class, sz);
 789                 if (do_class && do_name)
 790                         strlcat(s, ":", sz);
 791                 if (do_name)
 792                         strlcat(s, xch->res_name, sz);
 793                 strlcat(s, "    ", sz);
 794         }
 795 out:
 796         if (xch)
 797                 XFree(xch);
 798 }
 799
 800 void
 801 bar_update(void)
 802 {
 803         time_t                  tmt;
 804         struct tm               tm;
 805         struct swm_region       *r;
 806         int                     i, x;
 807         size_t                  len;
 808         char                    s[SWM_BAR_MAX];
 809         char                    loc[SWM_BAR_MAX];
 810         char                    *b;
 811         char                    *stack = "";
 812
 813         if (bar_enabled == 0)
 814                 return;
 815         if (bar_extra && bar_extra_running) {
 816                 /* ignore short reads; it'll correct itself */
 817                 while ((b = fgetln(stdin, &len)) != NULL)
 818                         if (b && b[len - 1] == '\n') {
 819                                 b[len - 1] = '\0';
 820                                 strlcpy(bar_ext, b, sizeof bar_ext);
 821                         }
 822                 if (b == NULL && errno != EAGAIN) {
 823                         fprintf(stderr, "bar_extra failed: errno: %d %s\n",
 824                             errno, strerror(errno));
 825                         bar_extra_stop();
 826                 }
 827         } else
 828                 strlcpy(bar_ext, "", sizeof bar_ext);
 829
 830         if (clock_enabled == 0)
 831                 strlcpy(s, "", sizeof s);
 832         else {
 833                 time(&tmt);
 834                 localtime_r(&tmt, &tm);
 835                 strftime(s, sizeof s, "%a %b %d %R %Z %Y    ", &tm);
 836         }
 837
 838         for (i = 0; i < ScreenCount(display); i++) {
 839                 x = 1;
 840                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
 841                         if (r && r->ws)
 842                                 bar_class_name(s, sizeof s, r->ws->focus);
 843
 844                         if (stack_enabled)
 845                                 stack = r->ws->cur_layout->name;
 846
 847                         snprintf(loc, sizeof loc, "%d:%d %s   %s %s    %s",
 848                             x++, r->ws->idx + 1, stack, s, bar_ext,
 849                             bar_vertext);
 850                         bar_print(r, loc);
 851                 }
 852         }
 853         alarm(bar_delay);
 854 }
 855
 856 void
 857 bar_signal(int sig)
 858 {
 859         bar_alarm = 1;
 860 }
 861
 862 void
 863 bar_toggle(struct swm_region *r, union arg *args)
 864 {
 865         struct swm_region       *tmpr;
 866         int                     i, sc = ScreenCount(display);
 867
 868         DNPRINTF(SWM_D_MISC, "bar_toggle\n");
 869
 870         if (bar_enabled)
 871                 for (i = 0; i < sc; i++)
 872                         TAILQ_FOREACH(tmpr, &screens[i].rl, entry)
 873                                 XUnmapWindow(display, tmpr->bar_window);
 874         else
 875                 for (i = 0; i < sc; i++)
 876                         TAILQ_FOREACH(tmpr, &screens[i].rl, entry)
 877                                 XMapRaised(display, tmpr->bar_window);
 878
 879         bar_enabled = !bar_enabled;
 880
 881         stack();
 882         /* must be after stack */
 883         bar_update();
 884 }
 885
 886 void
 887 bar_refresh(void)
 888 {
 889         XSetWindowAttributes    wa;
 890         struct swm_region       *r;
 891         int                     i;
 892
 893         /* do this here because the conf file is in memory */
 894         if (bar_extra && bar_extra_running == 0 && bar_argv[0]) {
 895                 /* launch external status app */
 896                 bar_extra_running = 1;
 897                 if (pipe(bar_pipe) == -1)
 898                         err(1, "pipe error");
 899                 socket_setnonblock(bar_pipe[0]);
 900                 socket_setnonblock(bar_pipe[1]); /* XXX hmmm, really? */
 901                 if (dup2(bar_pipe[0], 0) == -1)
 902                         errx(1, "dup2");
 903                 if (dup2(bar_pipe[1], 1) == -1)
 904                         errx(1, "dup2");
 905                 if (signal(SIGPIPE, SIG_IGN) == SIG_ERR)
 906                         err(1, "could not disable SIGPIPE");
 907                 switch (bar_pid = fork()) {
 908                 case -1:
 909                         err(1, "cannot fork");
 910                         break;
 911                 case 0: /* child */
 912                         close(bar_pipe[0]);
 913                         execvp(bar_argv[0], bar_argv);
 914                         err(1, "%s external app failed", bar_argv[0]);
 915                         break;
 916                 default: /* parent */
 917                         close(bar_pipe[1]);
 918                         break;
 919                 }
 920         }
 921
 922         bzero(&wa, sizeof wa);
 923         for (i = 0; i < ScreenCount(display); i++)
 924                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
 925                         wa.border_pixel =
 926                             screens[i].c[SWM_S_COLOR_BAR_BORDER].color;
 927                         wa.background_pixel =
 928                             screens[i].c[SWM_S_COLOR_BAR].color;
 929                         XChangeWindowAttributes(display, r->bar_window,
 930                             CWBackPixel | CWBorderPixel, &wa);
 931                 }
 932         bar_update();
 933 }
 934
 935 void
 936 bar_setup(struct swm_region *r)
 937 {
 938         int                     i;
 939
 940         for (i = 0; bar_fonts[i] != NULL; i++) {
 941                 bar_fs = XLoadQueryFont(display, bar_fonts[i]);
 942                 if (bar_fs) {
 943                         bar_fidx = i;
 944                         break;
 945                 }
 946         }
 947         if (bar_fonts[i] == NULL)
 948                         errx(1, "couldn't load font");
 949         bar_height = bar_fs->ascent + bar_fs->descent + 3;
 950
 951         r->bar_window = XCreateSimpleWindow(display,
 952             r->s->root, X(r), Y(r), WIDTH(r) - 2, bar_height - 2,
 953             1, r->s->c[SWM_S_COLOR_BAR_BORDER].color,
 954             r->s->c[SWM_S_COLOR_BAR].color);
 955         bar_gc = XCreateGC(display, r->bar_window, 0, &bar_gcv);
 956         XSetFont(display, bar_gc, bar_fs->fid);
 957         XSelectInput(display, r->bar_window, VisibilityChangeMask);
 958         if (bar_enabled)
 959                 XMapRaised(display, r->bar_window);
 960         DNPRINTF(SWM_D_MISC, "bar_setup: bar_window %lu\n", r->bar_window);
 961
 962         if (signal(SIGALRM, bar_signal) == SIG_ERR)
 963                 err(1, "could not install bar_signal");
 964         bar_refresh();
 965 }
 966
 967 void
 968 set_win_state(struct ws_win *win, long state)
 969 {
 970         long                    data[] = {state, None};
 971
 972         DNPRINTF(SWM_D_EVENT, "set_win_state: window: %lu\n", win->id);
 973
 974         if (win == NULL)
 975                 return;
 976
 977         XChangeProperty(display, win->id, astate, astate, 32, PropModeReplace,
 978             (unsigned char *)data, 2);
 979 }
 980
 981 long
 982 getstate(Window w)
 983 {
 984         int                     format, status;
 985         long                    result = -1;
 986         unsigned char           *p = NULL;
 987         unsigned long           n, extra;
 988         Atom                    real;
 989
 990         status = XGetWindowProperty(display, w, astate, 0L, 2L, False, astate,
 991             &real, &format, &n, &extra, (unsigned char **)&p);
 992         if (status != Success)
 993                 return (-1);
 994         if (n != 0)
 995                 result = *((long *)p);
 996         XFree(p);
 997         return (result);
 998 }
 999
1000 void
1001 version(struct swm_region *r, union arg *args)
1002 {
1003         bar_version = !bar_version;
1004         if (bar_version)
1005                 snprintf(bar_vertext, sizeof bar_vertext, "Version: %s CVS: %s",
1006                     SWM_VERSION, cvstag);
1007         else
1008                 strlcpy(bar_vertext, "", sizeof bar_vertext);
1009         bar_update();
1010 }
1011
1012 void
1013 client_msg(struct ws_win *win, Atom a)
1014 {
1015         XClientMessageEvent     cm;
1016
1017         if (win == NULL)
1018                 return;
1019
1020         bzero(&cm, sizeof cm);
1021         cm.type = ClientMessage;
1022         cm.window = win->id;
1023         cm.message_type = aprot;
1024         cm.format = 32;
1025         cm.data.l[0] = a;
1026         cm.data.l[1] = CurrentTime;
1027         XSendEvent(display, win->id, False, 0L, (XEvent *)&cm);
1028 }
1029
1030 void
1031 configreq_win(struct ws_win *win)
1032 {
1033         XConfigureRequestEvent  cr;
1034
1035         if (win == NULL)
1036                 return;
1037
1038         bzero(&cr, sizeof cr);
1039         cr.type = ConfigureRequest;
1040         cr.display = display;
1041         cr.parent = win->id;
1042         cr.window = win->id;
1043         cr.x = win->g.x;
1044         cr.y = win->g.y;
1045         cr.width = win->g.w;
1046         cr.height = win->g.h;
1047         cr.border_width = 1;
1048
1049         XSendEvent(display, win->id, False, StructureNotifyMask, (XEvent *)&cr);
1050 }
1051
1052 void
1053 config_win(struct ws_win *win)
1054 {
1055         XConfigureEvent         ce;
1056
1057         DNPRINTF(SWM_D_MISC, "config_win: win %lu x %d y %d w %d h %d\n",
1058             win->id, win->g.x, win->g.y, win->g.w, win->g.h);
1059
1060         if (win == NULL)
1061                 return;
1062
1063         ce.type = ConfigureNotify;
1064         ce.display = display;
1065         ce.event = win->id;
1066         ce.window = win->id;
1067         ce.x = win->g.x;
1068         ce.y = win->g.y;
1069         ce.width = win->g.w;
1070         ce.height = win->g.h;
1071         ce.border_width = 1; /* XXX store this! */
1072         ce.above = None;
1073         ce.override_redirect = False;
1074         XSendEvent(display, win->id, False, StructureNotifyMask, (XEvent *)&ce);
1075 }
1076
1077 int
1078 count_win(struct workspace *ws, int count_transient)
1079 {
1080         struct ws_win           *win;
1081         int                     count = 0;
1082
1083         TAILQ_FOREACH(win, &ws->winlist, entry) {
1084                 if (count_transient == 0 && win->floating)
1085                         continue;
1086                 if (count_transient == 0 && win->transient)
1087                         continue;
1088                 count++;
1089         }
1090         DNPRINTF(SWM_D_MISC, "count_win: %d\n", count);
1091
1092         return (count);
1093 }
1094
1095 void
1096 quit(struct swm_region *r, union arg *args)
1097 {
1098         DNPRINTF(SWM_D_MISC, "quit\n");
1099         running = 0;
1100 }
1101
1102 void
1103 unmap_window(struct ws_win *win)
1104 {
1105         if (win == NULL)
1106                 return;
1107
1108         /* don't unmap again */
1109         if (getstate(win->id) == IconicState)
1110                 return;
1111
1112         set_win_state(win, IconicState);
1113
1114         XUnmapWindow(display, win->id);
1115 }
1116
1117 void
1118 unmap_all(void)
1119 {
1120         struct ws_win           *win;
1121         int                     i, j;
1122
1123         for (i = 0; i < ScreenCount(display); i++)
1124                 for (j = 0; j < SWM_WS_MAX; j++)
1125                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
1126                                 unmap_window(win);
1127 }
1128
1129 void
1130 fake_keypress(struct ws_win *win, int keysym, int modifiers)
1131 {
1132         XKeyEvent event;
1133
1134         if (win == NULL)
1135                 return;
1136
1137         event.display = display;        /* Ignored, but what the hell */
1138         event.window = win->id;
1139         event.root = win->s->root;
1140         event.subwindow = None;
1141         event.time = CurrentTime;
1142         event.x = win->g.x;
1143         event.y = win->g.y;
1144         event.x_root = 1;
1145         event.y_root = 1;
1146         event.same_screen = True;
1147         event.keycode = XKeysymToKeycode(display, keysym);
1148         event.state = modifiers;
1149
1150         event.type = KeyPress;
1151         XSendEvent(event.display, event.window, True,
1152             KeyPressMask, (XEvent *)&event);
1153
1154         event.type = KeyRelease;
1155         XSendEvent(event.display, event.window, True,
1156             KeyPressMask, (XEvent *)&event);
1157
1158 }
1159
1160 void
1161 restart(struct swm_region *r, union arg *args)
1162 {
1163         DNPRINTF(SWM_D_MISC, "restart: %s\n", start_argv[0]);
1164
1165         /* disable alarm because the following code may not be interrupted */
1166         alarm(0);
1167         if (signal(SIGALRM, SIG_IGN) == SIG_ERR)
1168                 errx(1, "can't disable alarm");
1169
1170         bar_extra_stop();
1171         bar_extra = 1;
1172         unmap_all();
1173         XCloseDisplay(display);
1174         execvp(start_argv[0], start_argv);
1175         fprintf(stderr, "execvp failed\n");
1176         perror(" failed");
1177         quit(NULL, NULL);
1178 }
1179
1180 struct swm_region *
1181 root_to_region(Window root)
1182 {
1183         struct swm_region       *r = NULL;
1184         Window                  rr, cr;
1185         int                     i, x, y, wx, wy;
1186         unsigned int            mask;
1187
1188         for (i = 0; i < ScreenCount(display); i++)
1189                 if (screens[i].root == root)
1190                         break;
1191
1192         if (XQueryPointer(display, screens[i].root,
1193             &rr, &cr, &x, &y, &wx, &wy, &mask) != False) {
1194                 /* choose a region based on pointer location */
1195                 TAILQ_FOREACH(r, &screens[i].rl, entry)
1196                         if (x >= X(r) && x <= X(r) + WIDTH(r) &&
1197                             y >= Y(r) && y <= Y(r) + HEIGHT(r))
1198                                 break;
1199         }
1200
1201         if (r == NULL)
1202                 r = TAILQ_FIRST(&screens[i].rl);
1203
1204         return (r);
1205 }
1206
1207 struct ws_win *
1208 find_unmanaged_window(Window id)
1209 {
1210         struct ws_win           *win;
1211         int                     i, j;
1212
1213         for (i = 0; i < ScreenCount(display); i++)
1214                 for (j = 0; j < SWM_WS_MAX; j++)
1215                         TAILQ_FOREACH(win, &screens[i].ws[j].unmanagedlist,
1216                             entry)
1217                                 if (id == win->id)
1218                                         return (win);
1219         return (NULL);
1220 }
1221
1222 struct ws_win *
1223 find_window(Window id)
1224 {
1225         struct ws_win           *win;
1226         int                     i, j;
1227
1228         for (i = 0; i < ScreenCount(display); i++)
1229                 for (j = 0; j < SWM_WS_MAX; j++)
1230                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
1231                                 if (id == win->id)
1232                                         return (win);
1233         return (NULL);
1234 }
1235
1236 void
1237 spawn(struct swm_region *r, union arg *args)
1238 {
1239         char                    *ret;
1240         int                     si;
1241
1242         DNPRINTF(SWM_D_MISC, "spawn: %s\n", args->argv[0]);
1243         /*
1244          * The double-fork construct avoids zombie processes and keeps the code
1245          * clean from stupid signal handlers.
1246          */
1247         if (fork() == 0) {
1248                 if (fork() == 0) {
1249                         if (display)
1250                                 close(ConnectionNumber(display));
1251                         setenv("LD_PRELOAD", SWM_LIB, 1);
1252                         if (asprintf(&ret, "%d", r->ws->idx)) {
1253                                 setenv("_SWM_WS", ret, 1);
1254                                 free(ret);
1255                         }
1256                         if (asprintf(&ret, "%d", getpid())) {
1257                                 setenv("_SWM_PID", ret, 1);
1258                                 free(ret);
1259                         }
1260                         setsid();
1261                         /* kill stdin, mplayer, ssh-add etc. need that */
1262                         si = open("/dev/null", O_RDONLY, 0);
1263                         if (si == -1)
1264                                 err(1, "open /dev/null");
1265                         if (dup2(si, 0) == -1)
1266                                 err(1, "dup2 /dev/null");
1267                         execvp(args->argv[0], args->argv);
1268                         fprintf(stderr, "execvp failed\n");
1269                         perror(" failed");
1270                 }
1271                 exit(0);
1272         }
1273 }
1274
1275 void
1276 spawnterm(struct swm_region *r, union arg *args)
1277 {
1278         DNPRINTF(SWM_D_MISC, "spawnterm\n");
1279
1280         if (term_width)
1281                 setenv("_SWM_XTERM_FONTADJ", "", 1);
1282         spawn(r, args);
1283 }
1284
1285 void
1286 unfocus_win(struct ws_win *win)
1287 {
1288         if (win == NULL)
1289                 return;
1290         if (win->ws == NULL)
1291                 return;
1292         if (win->ws->r == NULL)
1293                 return;
1294
1295         if (win->ws->focus == win) {
1296                 win->ws->focus = NULL;
1297                 win->ws->focus_prev = win;
1298         }
1299
1300         grabbuttons(win, 0);
1301         XSetWindowBorder(display, win->id,
1302             win->ws->r->s->c[SWM_S_COLOR_UNFOCUS].color);
1303 }
1304
1305 void
1306 unfocus_all(void)
1307 {
1308         struct ws_win           *win;
1309         int                     i, j;
1310
1311         DNPRINTF(SWM_D_FOCUS, "unfocus_all:\n");
1312
1313         for (i = 0; i < ScreenCount(display); i++)
1314                 for (j = 0; j < SWM_WS_MAX; j++)
1315                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
1316                                 unfocus_win(win);
1317 }
1318
1319 void
1320 focus_win(struct ws_win *win)
1321 {
1322         DNPRINTF(SWM_D_FOCUS, "focus_win: id: %lu\n", win ? win->id : 0);
1323
1324         if (win == NULL)
1325                 return;
1326         if (win->ws == NULL)
1327                 return;
1328
1329         /* use big hammer to make sure it works under all use cases */
1330         unfocus_all();
1331         win->ws->focus = win;
1332
1333         if (win->ws->r != NULL) {
1334                 grabbuttons(win, 1);
1335                 if (win->ws->cur_layout->flags & SWM_L_MAPONFOCUS)
1336                         XMapRaised(display, win->id);
1337                 XSetWindowBorder(display, win->id,
1338                     win->ws->r->s->c[SWM_S_COLOR_FOCUS].color);
1339                 if (win->java == 0)
1340                         XSetInputFocus(display, win->id,
1341                             RevertToPointerRoot, CurrentTime);
1342         }
1343 }
1344
1345 void
1346 switchws(struct swm_region *r, union arg *args)
1347 {
1348         int                     wsid = args->id;
1349         struct swm_region       *this_r, *other_r;
1350         struct ws_win           *win, *winfocus = NULL, *parent = NULL;
1351         struct workspace        *new_ws, *old_ws;
1352
1353         if (!(r && r->s))
1354                 return;
1355
1356         this_r = r;
1357         old_ws = this_r->ws;
1358         new_ws = &this_r->s->ws[wsid];
1359
1360         DNPRINTF(SWM_D_WS, "switchws screen[%d]:%dx%d+%d+%d: "
1361             "%d -> %d\n", r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r),
1362             old_ws->idx, wsid);
1363
1364         if (new_ws == NULL || old_ws == NULL)
1365                 return;
1366         if (new_ws == old_ws)
1367                 return;
1368
1369         /* get focus window */
1370         if (new_ws->focus)
1371                 winfocus = new_ws->focus;
1372         else if (new_ws->focus_prev)
1373                 winfocus = new_ws->focus_prev;
1374         else
1375                 winfocus = TAILQ_FIRST(&new_ws->winlist);
1376
1377         other_r = new_ws->r;
1378         if (other_r == NULL) {
1379                 /* if the other workspace is hidden, switch windows */
1380                 if (old_ws->r != NULL)
1381                         old_ws->old_r = old_ws->r;
1382                 old_ws->r = NULL;
1383
1384                 TAILQ_FOREACH(win, &old_ws->winlist, entry)
1385                         unmap_window(win);
1386         } else {
1387                 other_r->ws = old_ws;
1388                 old_ws->r = other_r;
1389         }
1390         this_r->ws = new_ws;
1391         new_ws->r = this_r;
1392
1393         ignore_enter = 1;
1394         stack();
1395         if (winfocus) {
1396                 /* make sure we see the parent window */
1397                 if (winfocus->transient) {
1398                         parent = find_window(winfocus->transient);
1399                         if (parent)
1400                                 focus_win(parent);
1401                 }
1402
1403                 focus_win(winfocus);
1404         }
1405         ignore_enter = 0;
1406         bar_update();
1407 }
1408
1409 void
1410 cyclews(struct swm_region *r, union arg *args)
1411 {
1412         union                   arg a;
1413         struct swm_screen       *s = r->s;
1414
1415         DNPRINTF(SWM_D_WS, "cyclews id %d "
1416             "in screen[%d]:%dx%d+%d+%d ws %d\n", args->id,
1417             r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
1418
1419         a.id = r->ws->idx;
1420         do {
1421                 switch (args->id) {
1422                 case SWM_ARG_ID_CYCLEWS_UP:
1423                         if (a.id < SWM_WS_MAX - 1)
1424                                 a.id++;
1425                         else
1426                                 a.id = 0;
1427                         break;
1428                 case SWM_ARG_ID_CYCLEWS_DOWN:
1429                         if (a.id > 0)
1430                                 a.id--;
1431                         else
1432                                 a.id = SWM_WS_MAX - 1;
1433                         break;
1434                 default:
1435                         return;
1436                 };
1437
1438                 if (cycle_empty == 0 && TAILQ_EMPTY(&s->ws[a.id].winlist))
1439                         continue;
1440                 if (cycle_visible == 0 && s->ws[a.id].r != NULL)
1441                         continue;
1442
1443                 switchws(r, &a);
1444         } while (a.id != r->ws->idx);
1445 }
1446
1447 void
1448 cyclescr(struct swm_region *r, union arg *args)
1449 {
1450         struct swm_region       *rr = NULL;
1451         struct workspace        *ws = NULL;
1452         struct ws_win           *winfocus = NULL;
1453         int                     i, x, y;
1454
1455         /* do nothing if we don't have more than one screen */
1456         if (!(ScreenCount(display) > 1 || outputs > 1))
1457                 return;
1458
1459         i = r->s->idx;
1460         switch (args->id) {
1461         case SWM_ARG_ID_CYCLESC_UP:
1462                 rr = TAILQ_NEXT(r, entry);
1463                 if (rr == NULL)
1464                         rr = TAILQ_FIRST(&screens[i].rl);
1465                 break;
1466         case SWM_ARG_ID_CYCLESC_DOWN:
1467                 rr = TAILQ_PREV(r, swm_region_list, entry);
1468                 if (rr == NULL)
1469                         rr = TAILQ_LAST(&screens[i].rl, swm_region_list);
1470                 break;
1471         default:
1472                 return;
1473         };
1474         if (rr == NULL)
1475                 return;
1476
1477         ws = rr->ws;
1478         winfocus = ws->focus;
1479         if (winfocus == NULL)
1480                 winfocus = ws->focus_prev;
1481         if (winfocus) {
1482                 /* use window coordinates */
1483                 x = winfocus->g.x + 1;
1484                 y = winfocus->g.y + 1;
1485         } else {
1486                 /* use region coordinates */
1487                 x = rr->g.x + 1;
1488                 y = rr->g.y + 1 + bar_enabled ? bar_height : 0;
1489         }
1490
1491         unfocus_all();
1492         XSetInputFocus(display, PointerRoot, RevertToPointerRoot, CurrentTime);
1493         XWarpPointer(display, None, rr->s[i].root, 0, 0, 0, 0, x, y);
1494
1495         focus_win(winfocus);
1496 }
1497
1498 void
1499 swapwin(struct swm_region *r, union arg *args)
1500 {
1501         struct ws_win           *target, *source;
1502         struct ws_win           *cur_focus;
1503         struct ws_win_list      *wl;
1504
1505
1506         DNPRINTF(SWM_D_WS, "swapwin id %d "
1507             "in screen %d region %dx%d+%d+%d ws %d\n", args->id,
1508             r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
1509
1510         cur_focus = r->ws->focus;
1511         if (cur_focus == NULL)
1512                 return;
1513
1514         source = cur_focus;
1515         wl = &source->ws->winlist;
1516
1517         switch (args->id) {
1518         case SWM_ARG_ID_SWAPPREV:
1519                 target = TAILQ_PREV(source, ws_win_list, entry);
1520                 TAILQ_REMOVE(wl, cur_focus, entry);
1521                 if (target == NULL)
1522                         TAILQ_INSERT_TAIL(wl, source, entry);
1523                 else
1524                         TAILQ_INSERT_BEFORE(target, source, entry);
1525                 break;
1526         case SWM_ARG_ID_SWAPNEXT:
1527                 target = TAILQ_NEXT(source, entry);
1528                 TAILQ_REMOVE(wl, source, entry);
1529                 if (target == NULL)
1530                         TAILQ_INSERT_HEAD(wl, source, entry);
1531                 else
1532                         TAILQ_INSERT_AFTER(wl, target, source, entry);
1533                 break;
1534         case SWM_ARG_ID_SWAPMAIN:
1535                 target = TAILQ_FIRST(wl);
1536                 if (target == source) {
1537                         if (source->ws->focus_prev != NULL &&
1538                             source->ws->focus_prev != target)
1539
1540                                 source = source->ws->focus_prev;
1541                         else
1542                                 return;
1543                 }
1544                 if (target == NULL || source == NULL)
1545                         return;
1546                 source->ws->focus_prev = target;
1547                 TAILQ_REMOVE(wl, target, entry);
1548                 TAILQ_INSERT_BEFORE(source, target, entry);
1549                 TAILQ_REMOVE(wl, source, entry);
1550                 TAILQ_INSERT_HEAD(wl, source, entry);
1551                 break;
1552         default:
1553                 DNPRINTF(SWM_D_MOVE, "invalid id: %d\n", args->id);
1554                 return;
1555         }
1556
1557         ignore_enter = 1;
1558         stack();
1559 }
1560
1561 void
1562 focus(struct swm_region *r, union arg *args)
1563 {
1564         struct ws_win           *winfocus, *winlostfocus;
1565         struct ws_win_list      *wl;
1566         struct ws_win           *cur_focus;
1567
1568         DNPRINTF(SWM_D_FOCUS, "focus: id %d\n", args->id);
1569
1570         cur_focus = r->ws->focus;
1571         if (cur_focus == NULL)
1572                 return;
1573
1574         wl = &cur_focus->ws->winlist;
1575
1576         winlostfocus = cur_focus;
1577
1578         switch (args->id) {
1579         case SWM_ARG_ID_FOCUSPREV:
1580                 winfocus = TAILQ_PREV(cur_focus, ws_win_list, entry);
1581                 if (winfocus == NULL)
1582                         winfocus = TAILQ_LAST(wl, ws_win_list);
1583                 break;
1584
1585         case SWM_ARG_ID_FOCUSNEXT:
1586                 winfocus = TAILQ_NEXT(cur_focus, entry);
1587                 if (winfocus == NULL)
1588                         winfocus = TAILQ_FIRST(wl);
1589                 break;
1590
1591         case SWM_ARG_ID_FOCUSMAIN:
1592                 winfocus = TAILQ_FIRST(wl);
1593                 if (winfocus == cur_focus)
1594                         winfocus = cur_focus->ws->focus_prev;
1595                 if (winfocus == NULL)
1596                         return;
1597                 break;
1598
1599         default:
1600                 return;
1601         }
1602
1603         if (winfocus == winlostfocus || winfocus == NULL)
1604                 return;
1605
1606         focus_win(winfocus);
1607 }
1608
1609 void
1610 cycle_layout(struct swm_region *r, union arg *args)
1611 {
1612         struct workspace        *ws = r->ws;
1613         struct ws_win           *winfocus, *parent = NULL;
1614
1615         DNPRINTF(SWM_D_EVENT, "cycle_layout: workspace: %d\n", ws->idx);
1616
1617         winfocus = ws->focus;
1618
1619         ws->cur_layout++;
1620         if (ws->cur_layout->l_stack == NULL)
1621                 ws->cur_layout = &layouts[0];
1622
1623         ignore_enter = 1;
1624         stack();
1625         /* make sure we see the parent window */
1626         if (winfocus) {
1627                 if (winfocus->transient)
1628                         parent = find_window(winfocus->transient);
1629                 if (parent)
1630                         focus_win(parent);
1631                 focus_win(winfocus);
1632         }
1633         ignore_enter = 0;
1634 }
1635
1636 void
1637 stack_config(struct swm_region *r, union arg *args)
1638 {
1639         struct workspace        *ws = r->ws;
1640
1641         DNPRINTF(SWM_D_STACK, "stack_config for workspace %d (id %d\n",
1642             args->id, ws->idx);
1643
1644         if (ws->cur_layout->l_config != NULL)
1645                 ws->cur_layout->l_config(ws, args->id);
1646
1647         if (args->id != SWM_ARG_ID_STACKINIT);
1648                 stack();
1649 }
1650
1651 void
1652 stack(void) {
1653         struct swm_geometry     g;
1654         struct swm_region       *r;
1655         int                     i, j;
1656
1657         DNPRINTF(SWM_D_STACK, "stack\n");
1658
1659         for (i = 0; i < ScreenCount(display); i++) {
1660                 j = 0;
1661                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
1662                         DNPRINTF(SWM_D_STACK, "stacking workspace %d "
1663                             "(screen %d, region %d)\n", r->ws->idx, i, j++);
1664
1665                         /* start with screen geometry, adjust for bar */
1666                         g = r->g;
1667                         g.w -= 2;
1668                         g.h -= 2;
1669                         if (bar_enabled) {
1670                                 g.y += bar_height;
1671                                 g.h -= bar_height;
1672                         }
1673                         r->ws->cur_layout->l_stack(r->ws, &g);
1674                 }
1675         }
1676         if (font_adjusted)
1677                 font_adjusted--;
1678 }
1679
1680 void
1681 stack_floater(struct ws_win *win, struct swm_region *r)
1682 {
1683         unsigned int            mask;
1684         XWindowChanges          wc;
1685
1686         if (win == NULL)
1687                 return;
1688
1689         bzero(&wc, sizeof wc);
1690         mask = CWX | CWY | CWBorderWidth | CWWidth | CWHeight;
1691         if ((win->quirks & SWM_Q_FULLSCREEN) && (win->g.w >= WIDTH(r)) &&
1692             (win->g.h >= HEIGHT(r)))
1693                 wc.border_width = 0;
1694         else
1695                 wc.border_width = 1;
1696         if (win->transient && (win->quirks & SWM_Q_TRANSSZ)) {
1697                 win->g.w = (double)WIDTH(r) * dialog_ratio;
1698                 win->g.h = (double)HEIGHT(r) * dialog_ratio;
1699         }
1700         wc.width = win->g.w;
1701         wc.height = win->g.h;
1702         if (win->manual) {
1703                 wc.x = win->g.x;
1704                 wc.y = win->g.y;
1705         } else {
1706                 wc.x = (WIDTH(r) - win->g.w) / 2;
1707                 wc.y = (HEIGHT(r) - win->g.h) / 2;
1708         }
1709
1710         /* adjust for region */
1711         wc.x += r->g.x;
1712         wc.y += r->g.y;
1713
1714         win->g.x = wc.x;
1715         win->g.y = wc.y;
1716         win->g.w = wc.width;
1717         win->g.h = wc.height;
1718
1719         DNPRINTF(SWM_D_STACK, "stack_floater: win %lu x %d y %d w %d h %d\n",
1720             win->id, wc.x, wc.y, wc.width, wc.height);
1721
1722         XConfigureWindow(display, win->id, mask, &wc);
1723 }
1724
1725 /*
1726  * Send keystrokes to terminal to decrease/increase the font size as the
1727  * window size changes.
1728  */
1729 void
1730 adjust_font(struct ws_win *win)
1731 {
1732         if (!(win->quirks & SWM_Q_XTERM_FONTADJ) ||
1733             win->floating || win->transient)
1734                 return;
1735
1736         if (win->sh.width_inc && win->last_inc != win->sh.width_inc &&
1737             win->g.w / win->sh.width_inc < term_width &&
1738             win->font_steps < SWM_MAX_FONT_STEPS) {
1739                 win->font_size_boundary[win->font_steps] =
1740                     (win->sh.width_inc * term_width) + win->sh.base_width;
1741                 win->font_steps++;
1742                 font_adjusted++;
1743                 win->last_inc = win->sh.width_inc;
1744                 fake_keypress(win, XK_KP_Subtract, ShiftMask);
1745         } else if (win->font_steps && win->last_inc != win->sh.width_inc &&
1746             win->g.w > win->font_size_boundary[win->font_steps - 1]) {
1747                 win->font_steps--;
1748                 font_adjusted++;
1749                 win->last_inc = win->sh.width_inc;
1750                 fake_keypress(win, XK_KP_Add, ShiftMask);
1751         }
1752 }
1753
1754 #define SWAPXY(g)       do {                            \
1755         int tmp;                                        \
1756         tmp = (g)->y; (g)->y = (g)->x; (g)->x = tmp;    \
1757         tmp = (g)->h; (g)->h = (g)->w; (g)->w = tmp;    \
1758 } while (0)
1759 void
1760 stack_master(struct workspace *ws, struct swm_geometry *g, int rot, int flip)
1761 {
1762         XWindowChanges          wc;
1763         struct swm_geometry     win_g, r_g = *g;
1764         struct ws_win           *win;
1765         int                     i, j, s, stacks;
1766         int                     w_inc = 1, h_inc, w_base = 1, h_base;
1767         int                     hrh, extra = 0, h_slice, last_h = 0;
1768         int                     split, colno, winno, mwin, msize, mscale;
1769         int                     remain, missing, v_slice, reconfigure;
1770         unsigned int            mask;
1771
1772         DNPRINTF(SWM_D_STACK, "stack_master: workspace: %d\n rot=%s flip=%s",
1773             ws->idx, rot ? "yes" : "no", flip ? "yes" : "no");
1774
1775         winno = count_win(ws, 0);
1776         if (winno == 0 && count_win(ws, 1) == 0)
1777                 return;
1778
1779         TAILQ_FOREACH(win, &ws->winlist, entry)
1780                 if (win->transient == 0 && win->floating == 0)
1781                         break;
1782
1783         if (win == NULL)
1784                 goto notiles;
1785
1786         if (rot) {
1787                 w_inc = win->sh.width_inc;
1788                 w_base = win->sh.base_width;
1789                 mwin = ws->l_state.horizontal_mwin;
1790                 mscale = ws->l_state.horizontal_msize;
1791                 stacks = ws->l_state.horizontal_stacks;
1792                 SWAPXY(&r_g);
1793         } else {
1794                 w_inc = win->sh.height_inc;
1795                 w_base = win->sh.base_height;
1796                 mwin = ws->l_state.vertical_mwin;
1797                 mscale = ws->l_state.vertical_msize;
1798                 stacks = ws->l_state.vertical_stacks;
1799         }
1800         win_g = r_g;
1801
1802         if (stacks > winno - mwin)
1803                 stacks = winno - mwin;
1804         if (stacks < 1)
1805                 stacks = 1;
1806
1807         h_slice = r_g.h / SWM_H_SLICE;
1808         if (mwin && winno > mwin) {
1809                 v_slice = r_g.w / SWM_V_SLICE;
1810
1811                 split = mwin;
1812                 colno = split;
1813                 win_g.w = v_slice * mscale;
1814
1815                 if (w_inc > 1 && w_inc < v_slice) {
1816                         /* adjust for window's requested size increment */
1817                         remain = (win_g.w - w_base) % w_inc;
1818                         missing = w_inc - remain;
1819                         win_g.w -= remain;
1820                         extra += remain;
1821                 }
1822
1823                 msize = win_g.w;
1824                 if (flip)
1825                         win_g.x += r_g.w - msize;
1826         } else {
1827                 msize = -2;
1828                 colno = split = winno / stacks;
1829                 win_g.w = ((r_g.w - (stacks * 2) + 2) / stacks);
1830         }
1831         hrh = r_g.h / colno;
1832         extra = r_g.h - (colno * hrh);
1833         win_g.h = hrh - 2;
1834
1835         /*  stack all the tiled windows */
1836         i = j = 0, s = stacks;
1837         TAILQ_FOREACH(win, &ws->winlist, entry) {
1838                 if (win->transient != 0 || win->floating != 0)
1839                         continue;
1840
1841                 if (split && i == split) {
1842                         colno = (winno - mwin) / stacks;
1843                         if (s <= (winno - mwin) % stacks)
1844                                 colno++;
1845                         split = split + colno;
1846                         hrh = (r_g.h / colno);
1847                         extra = r_g.h - (colno * hrh);
1848                         if (flip)
1849                                 win_g.x = r_g.x;
1850                         else
1851                                 win_g.x += win_g.w + 2;
1852                         win_g.w = (r_g.w - msize - (stacks * 2)) / stacks;
1853                         if (s == 1)
1854                                 win_g.w += (r_g.w - msize - (stacks * 2)) %
1855                                     stacks;
1856                         s--;
1857                         j = 0;
1858                 }
1859                 win_g.h = hrh - 2;
1860                 if (rot) {
1861                         h_inc = win->sh.width_inc;
1862                         h_base = win->sh.base_width;
1863                 } else {
1864                         h_inc = win->sh.height_inc;
1865                         h_base = win->sh.base_height;
1866                 }
1867                 if (j == colno - 1) {
1868                         win_g.h = hrh + extra;
1869                 } else if (h_inc > 1 && h_inc < h_slice) {
1870                         /* adjust for window's requested size increment */
1871                         remain = (win_g.h - h_base) % h_inc;
1872                         missing = h_inc - remain;
1873
1874                         if (missing <= extra || j == 0) {
1875                                 extra -= missing;
1876                                 win_g.h += missing;
1877                         } else {
1878                                 win_g.h -= remain;
1879                                 extra += remain;
1880                         }
1881                 }
1882
1883                 if (j == 0)
1884                         win_g.y = r_g.y;
1885                 else
1886                         win_g.y += last_h + 2;
1887
1888                 bzero(&wc, sizeof wc);
1889                 wc.border_width = 1;
1890                 reconfigure = 0;
1891                 if (rot) {
1892                         if (win->g.x != win_g.y || win->g.y != win_g.x ||
1893                             win->g.w != win_g.h || win->g.h != win_g.w) {
1894                                 reconfigure = 1;
1895                                 win->g.x = wc.x = win_g.y;
1896                                 win->g.y = wc.y = win_g.x;
1897                                 win->g.w = wc.width = win_g.h;
1898                                 win->g.h = wc.height = win_g.w;
1899                         }
1900                 } else {
1901                         if (win->g.x != win_g.x || win->g.y != win_g.y ||
1902                             win->g.w != win_g.w || win->g.h != win_g.h) {
1903                                 reconfigure = 1;
1904                                 win->g.x = wc.x = win_g.x;
1905                                 win->g.y = wc.y = win_g.y;
1906                                 win->g.w = wc.width = win_g.w;
1907                                 win->g.h = wc.height = win_g.h;
1908                         }
1909                 }
1910                 if (reconfigure) {
1911                         adjust_font(win);
1912                         mask = CWX | CWY | CWWidth | CWHeight | CWBorderWidth;
1913                         XConfigureWindow(display, win->id, mask, &wc);
1914                         configreq_win(win);
1915                 }
1916                 XMapRaised(display, win->id);
1917
1918                 last_h = win_g.h;
1919                 i++;
1920                 j++;
1921         }
1922
1923  notiles:
1924         /* now, stack all the floaters and transients */
1925         TAILQ_FOREACH(win, &ws->winlist, entry) {
1926                 if (win->transient == 0 && win->floating == 0)
1927                         continue;
1928
1929                 stack_floater(win, ws->r);
1930                 XMapRaised(display, win->id);
1931         }
1932 }
1933
1934 void
1935 vertical_config(struct workspace *ws, int id)
1936 {
1937         DNPRINTF(SWM_D_STACK, "vertical_resize: workspace: %d\n", ws->idx);
1938
1939         switch (id) {
1940         case SWM_ARG_ID_STACKRESET:
1941         case SWM_ARG_ID_STACKINIT:
1942                 ws->l_state.vertical_msize = SWM_V_SLICE / 2;
1943                 ws->l_state.vertical_mwin = 1;
1944                 ws->l_state.vertical_stacks = 1;
1945                 break;
1946         case SWM_ARG_ID_MASTERSHRINK:
1947                 if (ws->l_state.vertical_msize > 1)
1948                         ws->l_state.vertical_msize--;
1949                 break;
1950         case SWM_ARG_ID_MASTERGROW:
1951                 if (ws->l_state.vertical_msize < SWM_V_SLICE - 1)
1952                         ws->l_state.vertical_msize++;
1953                 break;
1954         case SWM_ARG_ID_MASTERADD:
1955                 ws->l_state.vertical_mwin++;
1956                 break;
1957         case SWM_ARG_ID_MASTERDEL:
1958                 if (ws->l_state.vertical_mwin > 0)
1959                         ws->l_state.vertical_mwin--;
1960                 break;
1961         case SWM_ARG_ID_STACKINC:
1962                 ws->l_state.vertical_stacks++;
1963                 break;
1964         case SWM_ARG_ID_STACKDEC:
1965                 if (ws->l_state.vertical_stacks > 1)
1966                         ws->l_state.vertical_stacks--;
1967                 break;
1968         default:
1969                 return;
1970         }
1971 }
1972
1973 void
1974 vertical_stack(struct workspace *ws, struct swm_geometry *g)
1975 {
1976         DNPRINTF(SWM_D_STACK, "vertical_stack: workspace: %d\n", ws->idx);
1977
1978         stack_master(ws, g, 0, 0);
1979 }
1980
1981 void
1982 horizontal_config(struct workspace *ws, int id)
1983 {
1984         DNPRINTF(SWM_D_STACK, "horizontal_config: workspace: %d\n", ws->idx);
1985
1986         switch (id) {
1987         case SWM_ARG_ID_STACKRESET:
1988         case SWM_ARG_ID_STACKINIT:
1989                 ws->l_state.horizontal_mwin = 1;
1990                 ws->l_state.horizontal_msize = SWM_H_SLICE / 2;
1991                 ws->l_state.horizontal_stacks = 1;
1992                 break;
1993         case SWM_ARG_ID_MASTERSHRINK:
1994                 if (ws->l_state.horizontal_msize > 1)
1995                         ws->l_state.horizontal_msize--;
1996                 break;
1997         case SWM_ARG_ID_MASTERGROW:
1998                 if (ws->l_state.horizontal_msize < SWM_H_SLICE - 1)
1999                         ws->l_state.horizontal_msize++;
2000                 break;
2001         case SWM_ARG_ID_MASTERADD:
2002                 ws->l_state.horizontal_mwin++;
2003                 break;
2004         case SWM_ARG_ID_MASTERDEL:
2005                 if (ws->l_state.horizontal_mwin > 0)
2006                         ws->l_state.horizontal_mwin--;
2007                 break;
2008         case SWM_ARG_ID_STACKINC:
2009                 ws->l_state.horizontal_stacks++;
2010                 break;
2011         case SWM_ARG_ID_STACKDEC:
2012                 if (ws->l_state.horizontal_stacks > 1)
2013                         ws->l_state.horizontal_stacks--;
2014                 break;
2015         default:
2016                 return;
2017         }
2018 }
2019
2020 void
2021 horizontal_stack(struct workspace *ws, struct swm_geometry *g)
2022 {
2023         DNPRINTF(SWM_D_STACK, "vertical_stack: workspace: %d\n", ws->idx);
2024
2025         stack_master(ws, g, 1, 0);
2026 }
2027
2028 /* fullscreen view */
2029 void
2030 max_stack(struct workspace *ws, struct swm_geometry *g)
2031 {
2032         XWindowChanges          wc;
2033         struct swm_geometry     gg = *g;
2034         struct ws_win           *win, *wintrans = NULL;
2035         unsigned int            mask;
2036         int                     winno;
2037
2038         DNPRINTF(SWM_D_STACK, "max_stack: workspace: %d\n", ws->idx);
2039
2040         if (ws == NULL)
2041                 return;
2042
2043         winno = count_win(ws, 0);
2044         if (winno == 0 && count_win(ws, 1) == 0)
2045                 return;
2046
2047         TAILQ_FOREACH(win, &ws->winlist, entry) {
2048                 if (win->transient) {
2049                         wintrans = win;
2050                         continue;
2051                 }
2052
2053                 /* only reconfigure if necessary */
2054                 if (win->g.x != gg.x || win->g.y != gg.y || win->g.w != gg.w ||
2055                     win->g.h != gg.h) {
2056                         bzero(&wc, sizeof wc);
2057                         wc.border_width = 1;
2058                         win->g.x = wc.x = gg.x;
2059                         win->g.y = wc.y = gg.y;
2060                         win->g.w = wc.width = gg.w;
2061                         win->g.h = wc.height = gg.h;
2062                         mask = CWX | CWY | CWWidth | CWHeight | CWBorderWidth;
2063                         XConfigureWindow(display, win->id, mask, &wc);
2064                         configreq_win(win);
2065                 }
2066                 /* unmap only if we don't have multi screen */
2067                 if (win != ws->focus)
2068                         if (!(ScreenCount(display) > 1 || outputs > 1))
2069                                 unmap_window(win);
2070         }
2071
2072         /* put the last transient on top */
2073         if (wintrans) {
2074                 stack_floater(wintrans, ws->r);
2075                 focus_win(wintrans); /* override */
2076         }
2077 }
2078
2079 void
2080 send_to_ws(struct swm_region *r, union arg *args)
2081 {
2082         int                     wsid = args->id;
2083         struct ws_win           *win = win, *winfocus = NULL;
2084         struct workspace        *ws, *nws;
2085         Atom                    ws_idx_atom = 0;
2086         unsigned char           ws_idx_str[SWM_PROPLEN];
2087
2088         if (r && r->ws)
2089                 win = r->ws->focus;
2090         else
2091                 return;
2092         if (win == NULL)
2093                 return;
2094
2095         DNPRINTF(SWM_D_MOVE, "send_to_ws: win: %lu\n", win->id);
2096
2097         ws = win->ws;
2098         nws = &win->s->ws[wsid];
2099
2100         /* find a window to focus */
2101         winfocus = TAILQ_PREV(win, ws_win_list, entry);
2102         if (TAILQ_FIRST(&ws->winlist) == win)
2103                 winfocus = TAILQ_NEXT(win, entry);
2104         else {
2105                 winfocus = TAILQ_PREV(win, ws_win_list, entry);
2106                 if (winfocus == NULL)
2107                         winfocus = TAILQ_LAST(&ws->winlist, ws_win_list);
2108         }
2109         /* out of windows in ws so focus on nws instead if we multi screen */
2110         if (winfocus == NULL)
2111                 if (ScreenCount(display) > 1 || outputs > 1)
2112                         winfocus = win;
2113
2114         unmap_window(win);
2115         TAILQ_REMOVE(&ws->winlist, win, entry);
2116         TAILQ_INSERT_TAIL(&nws->winlist, win, entry);
2117         win->ws = nws;
2118
2119         /* Try to update the window's workspace property */
2120         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
2121         if (ws_idx_atom &&
2122             snprintf(ws_idx_str, SWM_PROPLEN, "%d", nws->idx) < SWM_PROPLEN) {
2123                 DNPRINTF(SWM_D_PROP, "setting property _SWM_WS to %s\n",
2124                     ws_idx_str);
2125                 XChangeProperty(display, win->id, ws_idx_atom, XA_STRING, 8,
2126                     PropModeReplace, ws_idx_str, SWM_PROPLEN);
2127         }
2128
2129         if (count_win(nws, 1) == 1)
2130                 nws->focus = win;
2131
2132         stack();
2133         if (winfocus)
2134                 focus_win(winfocus);
2135 }
2136
2137 void
2138 wkill(struct swm_region *r, union arg *args)
2139 {
2140         DNPRINTF(SWM_D_MISC, "wkill %d\n", args->id);
2141
2142         if(r->ws->focus == NULL)
2143                 return;
2144
2145         if (args->id == SWM_ARG_ID_KILLWINDOW)
2146                 XKillClient(display, r->ws->focus->id);
2147         else
2148                 if (r->ws->focus->can_delete)
2149                         client_msg(r->ws->focus, adelete);
2150 }
2151
2152 void
2153 floating_toggle(struct swm_region *r, union arg *args)
2154 {
2155         struct ws_win   *win = r->ws->focus;
2156
2157         if (win == NULL)
2158                 return;
2159
2160         win->floating = !win->floating;
2161         win->manual = 0;
2162         stack();
2163         focus_win(win);
2164 }
2165
2166 void
2167 resize_window(struct ws_win *win, int center)
2168 {
2169         unsigned int            mask;
2170         XWindowChanges          wc;
2171         struct swm_region       *r;
2172
2173         r = root_to_region(win->wa.root);
2174         bzero(&wc, sizeof wc);
2175         mask = CWBorderWidth | CWWidth | CWHeight;
2176         wc.border_width = 1;
2177         wc.width = win->g.w;
2178         wc.height = win->g.h;
2179         if (center == SWM_ARG_ID_CENTER) {
2180                 wc.x = (WIDTH(r) - win->g.w) / 2;
2181                 wc.y = (HEIGHT(r) - win->g.h) / 2;
2182                 mask |= CWX | CWY;
2183         }
2184
2185         DNPRINTF(SWM_D_STACK, "resize_window: win %lu x %d y %d w %d h %d\n",
2186             win->id, wc.x, wc.y, wc.width, wc.height);
2187
2188         XConfigureWindow(display, win->id, mask, &wc);
2189         config_win(win);
2190 }
2191
2192 void
2193 resize(struct ws_win *win, union arg *args)
2194 {
2195         XEvent                  ev;
2196         Time                    time = 0;
2197
2198         DNPRINTF(SWM_D_MOUSE, "resize: win %lu floating %d trans %d\n",
2199             win->id, win->floating, win->transient);
2200
2201         if (!(win->transient != 0 || win->floating != 0))
2202                 return;
2203
2204         if (XGrabPointer(display, win->id, False, MOUSEMASK, GrabModeAsync,
2205             GrabModeAsync, None, None /* cursor */, CurrentTime) != GrabSuccess)
2206                 return;
2207         XWarpPointer(display, None, win->id, 0, 0, 0, 0, win->g.w, win->g.h);
2208         do {
2209                 XMaskEvent(display, MOUSEMASK | ExposureMask |
2210                     SubstructureRedirectMask, &ev);
2211                 switch(ev.type) {
2212                 case ConfigureRequest:
2213                 case Expose:
2214                 case MapRequest:
2215                         handler[ev.type](&ev);
2216                         break;
2217                 case MotionNotify:
2218                         if (ev.xmotion.x <= 1)
2219                                 ev.xmotion.x = 1;
2220                         if (ev.xmotion.y <= 1)
2221                                 ev.xmotion.y = 1;
2222                         win->g.w = ev.xmotion.x;
2223                         win->g.h = ev.xmotion.y;
2224
2225                         /* not free, don't sync more than 60 times / second */
2226                         if ((ev.xmotion.time - time) > (1000 / 60) ) {
2227                                 time = ev.xmotion.time;
2228                                 XSync(display, False);
2229                                 resize_window(win, args->id);
2230                         }
2231                         break;
2232                 }
2233         } while (ev.type != ButtonRelease);
2234         if (time) {
2235                 XSync(display, False);
2236                 resize_window(win, args->id);
2237         }
2238         XWarpPointer(display, None, win->id, 0, 0, 0, 0, win->g.w - 1,
2239             win->g.h - 1);
2240         XUngrabPointer(display, CurrentTime);
2241
2242         /* drain events */
2243         while (XCheckMaskEvent(display, EnterWindowMask, &ev));
2244 }
2245
2246 void
2247 move_window(struct ws_win *win)
2248 {
2249         unsigned int            mask;
2250         XWindowChanges          wc;
2251         struct swm_region       *r;
2252
2253         r = root_to_region(win->wa.root);
2254         bzero(&wc, sizeof wc);
2255         mask = CWX | CWY;
2256         wc.x = win->g.x;
2257         wc.y = win->g.y;
2258
2259         DNPRINTF(SWM_D_STACK, "move_window: win %lu x %d y %d w %d h %d\n",
2260             win->id, wc.x, wc.y, wc.width, wc.height);
2261
2262         XConfigureWindow(display, win->id, mask, &wc);
2263         config_win(win);
2264 }
2265
2266 void
2267 move(struct ws_win *win, union arg *args)
2268 {
2269         XEvent                  ev;
2270         Time                    time = 0;
2271         int                     restack = 0;
2272
2273         DNPRINTF(SWM_D_MOUSE, "move: win %lu floating %d trans %d\n",
2274             win->id, win->floating, win->transient);
2275
2276         if (win->floating == 0) {
2277                 win->floating = 1;
2278                 win->manual = 1;
2279                 restack = 1;
2280         }
2281
2282         if (XGrabPointer(display, win->id, False, MOUSEMASK, GrabModeAsync,
2283             GrabModeAsync, None, None /* cursor */, CurrentTime) != GrabSuccess)
2284                 return;
2285         XWarpPointer(display, None, win->id, 0, 0, 0, 0, 0, 0);
2286         do {
2287                 XMaskEvent(display, MOUSEMASK | ExposureMask |
2288                     SubstructureRedirectMask, &ev);
2289                 switch(ev.type) {
2290                 case ConfigureRequest:
2291                 case Expose:
2292                 case MapRequest:
2293                         handler[ev.type](&ev);
2294                         break;
2295                 case MotionNotify:
2296                         win->g.x = ev.xmotion.x_root;
2297                         win->g.y = ev.xmotion.y_root;
2298
2299                         /* not free, don't sync more than 60 times / second */
2300                         if ((ev.xmotion.time - time) > (1000 / 60) ) {
2301                                 time = ev.xmotion.time;
2302                                 XSync(display, False);
2303                                 move_window(win);
2304                         }
2305                         break;
2306                 }
2307         } while (ev.type != ButtonRelease);
2308         if (time) {
2309                 XSync(display, False);
2310                 move_window(win);
2311         }
2312         XWarpPointer(display, None, win->id, 0, 0, 0, 0, 0, 0);
2313         XUngrabPointer(display, CurrentTime);
2314         if (restack)
2315                 stack();
2316
2317         /* drain events */
2318         while (XCheckMaskEvent(display, EnterWindowMask, &ev));
2319 }
2320
2321 /* key definitions */
2322 void
2323 dummykeyfunc(struct swm_region *r, union arg *args)
2324 {
2325 };
2326
2327 void
2328 legacyfunc(struct swm_region *r, union arg *args)
2329 {
2330 };
2331
2332 struct keyfunc {
2333         char                    name[SWM_FUNCNAME_LEN];
2334         void                    (*func)(struct swm_region *r, union arg *);
2335         union arg               args;
2336 } keyfuncs[kf_invalid + 1] = {
2337         /* name                 function        argument */
2338         { "cycle_layout",       cycle_layout,   {0} },
2339         { "stack_reset",        stack_config,   {.id = SWM_ARG_ID_STACKRESET} },
2340         { "master_shrink",      stack_config,   {.id = SWM_ARG_ID_MASTERSHRINK} },
2341         { "master_grow",        stack_config,   {.id = SWM_ARG_ID_MASTERGROW} },
2342         { "master_add",         stack_config,   {.id = SWM_ARG_ID_MASTERADD} },
2343         { "master_del",         stack_config,   {.id = SWM_ARG_ID_MASTERDEL} },
2344         { "stack_inc",          stack_config,   {.id = SWM_ARG_ID_STACKINC} },
2345         { "stack_dec",          stack_config,   {.id = SWM_ARG_ID_STACKDEC} },
2346         { "swap_main",          swapwin,        {.id = SWM_ARG_ID_SWAPMAIN} },
2347         { "focus_next",         focus,          {.id = SWM_ARG_ID_FOCUSNEXT} },
2348         { "focus_prev",         focus,          {.id = SWM_ARG_ID_FOCUSPREV} },
2349         { "swap_next",          swapwin,        {.id = SWM_ARG_ID_SWAPNEXT} },
2350         { "swap_prev",          swapwin,        {.id = SWM_ARG_ID_SWAPPREV} },
2351         { "spawn_term",         spawnterm,      {.argv = spawn_term} },
2352         { "spawn_menu",         legacyfunc,     {0} },
2353         { "quit",               quit,           {0} },
2354         { "restart",            restart,        {0} },
2355         { "focus_main",         focus,          {.id = SWM_ARG_ID_FOCUSMAIN} },
2356         { "ws_1",               switchws,       {.id = 0} },
2357         { "ws_2",               switchws,       {.id = 1} },
2358         { "ws_3",               switchws,       {.id = 2} },
2359         { "ws_4",               switchws,       {.id = 3} },
2360         { "ws_5",               switchws,       {.id = 4} },
2361         { "ws_6",               switchws,       {.id = 5} },
2362         { "ws_7",               switchws,       {.id = 6} },
2363         { "ws_8",               switchws,       {.id = 7} },
2364         { "ws_9",               switchws,       {.id = 8} },
2365         { "ws_10",              switchws,       {.id = 9} },
2366         { "ws_next",            cyclews,        {.id = SWM_ARG_ID_CYCLEWS_UP} },
2367         { "ws_prev",            cyclews,        {.id = SWM_ARG_ID_CYCLEWS_DOWN} },
2368         { "screen_next",        cyclescr,       {.id = SWM_ARG_ID_CYCLESC_UP} },
2369         { "screen_prev",        cyclescr,       {.id = SWM_ARG_ID_CYCLESC_DOWN} },
2370         { "mvws_1",             send_to_ws,     {.id = 0} },
2371         { "mvws_2",             send_to_ws,     {.id = 1} },
2372         { "mvws_3",             send_to_ws,     {.id = 2} },
2373         { "mvws_4",             send_to_ws,     {.id = 3} },
2374         { "mvws_5",             send_to_ws,     {.id = 4} },
2375         { "mvws_6",             send_to_ws,     {.id = 5} },
2376         { "mvws_7",             send_to_ws,     {.id = 6} },
2377         { "mvws_8",             send_to_ws,     {.id = 7} },
2378         { "mvws_9",             send_to_ws,     {.id = 8} },
2379         { "mvws_10",            send_to_ws,     {.id = 9} },
2380         { "bar_toggle",         bar_toggle,     {0} },
2381         { "wind_kill",          wkill,          {.id = SWM_ARG_ID_KILLWINDOW} },
2382         { "wind_del",           wkill,          {.id = SWM_ARG_ID_DELETEWINDOW} },
2383         { "screenshot_all",     legacyfunc,     {0} },
2384         { "screenshot_wind",    legacyfunc,     {0} },
2385         { "float_toggle",       floating_toggle,{0} },
2386         { "version",            version,        {0} },
2387         { "spawn_lock",         legacyfunc,     {0} },
2388         { "spawn_initscr",      legacyfunc,     {0} },
2389         { "spawn_custom",       dummykeyfunc,   {0} },
2390         { "dumpwins",           dumpwins,       {0} },
2391         { "invalid key func",   NULL,           {0} },
2392 };
2393 struct key {
2394         unsigned int            mod;
2395         KeySym                  keysym;
2396         enum keyfuncid          funcid;
2397         char                    *spawn_name;
2398 };
2399 int                             keys_size = 0, keys_length = 0;
2400 struct key                      *keys = NULL;
2401
2402 /* mouse */
2403 enum { client_click, root_click };
2404 struct button {
2405         unsigned int            action;
2406         unsigned int            mask;
2407         unsigned int            button;
2408         void                    (*func)(struct ws_win *, union arg *);
2409         union arg               args;
2410 } buttons[] = {
2411           /* action     key             mouse button    func    args */
2412         { client_click, MODKEY,         Button3,        resize, {.id = SWM_ARG_ID_DONTCENTER} },
2413         { client_click, MODKEY | ShiftMask, Button3,    resize, {.id = SWM_ARG_ID_CENTER} },
2414         { client_click, MODKEY,         Button1,        move,   {0} },
2415 };
2416
2417 void
2418 update_modkey(unsigned int mod)
2419 {
2420         int                     i;
2421
2422         mod_key = mod;
2423         for (i = 0; i < keys_length; i++)
2424                 if (keys[i].mod & ShiftMask)
2425                         keys[i].mod = mod | ShiftMask;
2426                 else
2427                         keys[i].mod = mod;
2428
2429         for (i = 0; i < LENGTH(buttons); i++)
2430                 if (buttons[i].mask & ShiftMask)
2431                         buttons[i].mask = mod | ShiftMask;
2432                 else
2433                         buttons[i].mask = mod;
2434 }
2435
2436 /* spawn */
2437 struct spawn_prog {
2438         char                    *name;
2439         int                     argc;
2440         char                    **argv;
2441 };
2442
2443 int                             spawns_size = 0, spawns_length = 0;
2444 struct spawn_prog               *spawns = NULL;
2445
2446 void
2447 spawn_custom(struct swm_region *r, union arg *args, char *spawn_name)
2448 {
2449         union arg               a;
2450         struct spawn_prog       *prog = NULL;
2451         int                     i;
2452         char                    *ap, **real_args;
2453
2454         DNPRINTF(SWM_D_SPAWN, "spawn_custom %s\n", spawn_name);
2455
2456         /* find program */
2457         for (i = 0; i < spawns_length; i++) {
2458                 if (!strcasecmp(spawn_name, spawns[i].name))
2459                         prog = &spawns[i];
2460         }
2461         if (prog == NULL) {
2462                 fprintf(stderr, "spawn_custom: program %s not found\n",
2463                     spawn_name);
2464                 return;
2465         }
2466
2467         /* make room for expanded args */
2468         if ((real_args = calloc(prog->argc + 1, sizeof(char *))) == NULL)
2469                 err(1, "spawn_custom: calloc real_args");
2470
2471         /* expand spawn_args into real_args */
2472         for (i = 0; i < prog->argc; i++) {
2473                 ap = prog->argv[i];
2474                 DNPRINTF(SWM_D_SPAWN, "spawn_custom: raw arg = %s\n", ap);
2475                 if (!strcasecmp(ap, "$bar_border")) {
2476                         if ((real_args[i] =
2477                             strdup(r->s->c[SWM_S_COLOR_BAR_BORDER].name))
2478                             == NULL)
2479                                 err(1,  "spawn_custom border color");
2480                 } else if (!strcasecmp(ap, "$bar_color")) {
2481                         if ((real_args[i] =
2482                             strdup(r->s->c[SWM_S_COLOR_BAR].name))
2483                             == NULL)
2484                                 err(1, "spawn_custom bar color");
2485                 } else if (!strcasecmp(ap, "$bar_font")) {
2486                         if ((real_args[i] = strdup(bar_fonts[bar_fidx]))
2487                             == NULL)
2488                                 err(1, "spawn_custom bar fonts");
2489                 } else if (!strcasecmp(ap, "$bar_font_color")) {
2490                         if ((real_args[i] =
2491                             strdup(r->s->c[SWM_S_COLOR_BAR_FONT].name))
2492                             == NULL)
2493                                 err(1, "spawn_custom color font");
2494                 } else if (!strcasecmp(ap, "$color_focus")) {
2495                         if ((real_args[i] =
2496                             strdup(r->s->c[SWM_S_COLOR_FOCUS].name))
2497                             == NULL)
2498                                 err(1, "spawn_custom color focus");
2499                 } else if (!strcasecmp(ap, "$color_unfocus")) {
2500                         if ((real_args[i] =
2501                             strdup(r->s->c[SWM_S_COLOR_UNFOCUS].name))
2502                             == NULL)
2503                                 err(1, "spawn_custom color unfocus");
2504                 } else {
2505                         /* no match --> copy as is */
2506                         if ((real_args[i] = strdup(ap)) == NULL)
2507                                 err(1, "spawn_custom strdup(ap)");
2508                 }
2509                 DNPRINTF(SWM_D_SPAWN, "spawn_custom: cooked arg = %s\n",
2510                     real_args[i]);
2511         }
2512
2513 #ifdef SWM_DEBUG
2514         if ((swm_debug & SWM_D_SPAWN) != 0) {
2515                 fprintf(stderr, "spawn_custom: result = ");
2516                 for (i = 0; i < prog->argc; i++)
2517                         fprintf(stderr, "\"%s\" ", real_args[i]);
2518                 fprintf(stderr, "\n");
2519         }
2520 #endif
2521
2522         a.argv = real_args;
2523         spawn(r, &a);
2524         for (i = 0; i < prog->argc; i++)
2525                 free(real_args[i]);
2526         free(real_args);
2527 }
2528
2529 void
2530 setspawn(struct spawn_prog *prog)
2531 {
2532         int                     i, j;
2533
2534         if (prog == NULL || prog->name == NULL)
2535                 return;
2536
2537         /* find existing */
2538         for (i = 0; i < spawns_length; i++) {
2539                 if (!strcmp(spawns[i].name, prog->name)) {
2540                         /* found */
2541                         if (prog->argv == NULL) {
2542                                 /* delete */
2543                                 DNPRINTF(SWM_D_SPAWN,
2544                                     "setspawn: delete #%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                                 j = spawns_length - 1;
2551                                 if (i < j)
2552                                         spawns[i] = spawns[j];
2553                                 spawns_length--;
2554                                 free(prog->name);
2555                         } else {
2556                                 /* replace */
2557                                 DNPRINTF(SWM_D_SPAWN,
2558                                     "setspawn: replace #%d %s\n",
2559                                     i, spawns[i].name);
2560                                 free(spawns[i].name);
2561                                 for (j = 0; j < spawns[i].argc; j++)
2562                                         free(spawns[i].argv[j]);
2563                                 free(spawns[i].argv);
2564                                 spawns[i] = *prog;
2565                         }
2566                         /* found case handled */
2567                         free(prog);
2568                         return;
2569                 }
2570         }
2571
2572         if (prog->argv == NULL) {
2573                 fprintf(stderr,
2574                     "error: setspawn: cannot find program %s", prog->name);
2575                 free(prog);
2576                 return;
2577         }
2578
2579         /* not found: add */
2580         if (spawns_size == 0 || spawns == NULL) {
2581                 spawns_size = 4;
2582                 DNPRINTF(SWM_D_SPAWN, "setspawn: init list %d\n", spawns_size);
2583                 spawns = malloc((size_t)spawns_size *
2584                     sizeof(struct spawn_prog));
2585                 if (spawns == NULL) {
2586                         fprintf(stderr, "setspawn: malloc failed\n");
2587                         perror(" failed");
2588                         quit(NULL, NULL);
2589                 }
2590         } else if (spawns_length == spawns_size) {
2591                 spawns_size *= 2;
2592                 DNPRINTF(SWM_D_SPAWN, "setspawn: grow list %d\n", spawns_size);
2593                 spawns = realloc(spawns, (size_t)spawns_size *
2594                     sizeof(struct spawn_prog));
2595                 if (spawns == NULL) {
2596                         fprintf(stderr, "setspawn: realloc failed\n");
2597                         perror(" failed");
2598                         quit(NULL, NULL);
2599                 }
2600         }
2601
2602         if (spawns_length < spawns_size) {
2603                 DNPRINTF(SWM_D_SPAWN, "setspawn: add #%d %s\n",
2604                     spawns_length, prog->name);
2605                 i = spawns_length++;
2606                 spawns[i] = *prog;
2607         } else {
2608                 fprintf(stderr, "spawns array problem?\n");
2609                 if (spawns == NULL) {
2610                         fprintf(stderr, "spawns array is NULL!\n");
2611                         quit(NULL, NULL);
2612                 }
2613         }
2614         free(prog);
2615 }
2616
2617 int
2618 setconfspawn(char *selector, char *value, int flags)
2619 {
2620         struct spawn_prog       *prog;
2621         char                    *vp, *cp, *word;
2622
2623         DNPRINTF(SWM_D_SPAWN, "setconfspawn: [%s] [%s]\n", selector, value);
2624         if ((prog = calloc(1, sizeof *prog)) == NULL)
2625                 err(1, "setconfspawn: calloc prog");
2626         prog->name = strdup(selector);
2627         if (prog->name == NULL)
2628                 err(1, "setconfspawn prog->name");
2629         if ((cp = vp = strdup(value)) == NULL)
2630                 err(1, "setconfspawn: strdup(value) ");
2631         while ((word = strsep(&cp, " \t")) != NULL) {
2632                 DNPRINTF(SWM_D_SPAWN, "setconfspawn: arg [%s]\n", word);
2633                 if (cp)
2634                         cp += (long)strspn(cp, " \t");
2635                 if (strlen(word) > 0) {
2636                         prog->argc++;
2637                         prog->argv = realloc(prog->argv,
2638                             prog->argc * sizeof(char *));
2639                         if ((prog->argv[prog->argc - 1] = strdup(word)) == NULL)
2640                                 err(1, "setconfspawn: strdup");
2641                 }
2642         }
2643         free(vp);
2644
2645         setspawn(prog);
2646
2647         DNPRINTF(SWM_D_SPAWN, "setconfspawn: done\n");
2648         return (0);
2649 }
2650
2651 void
2652 setup_spawn(void)
2653 {
2654         setconfspawn("term",            "xterm",                0);
2655         setconfspawn("screenshot_all",  "screenshot.sh full",   0);
2656         setconfspawn("screenshot_wind", "screenshot.sh window", 0);
2657         setconfspawn("lock",            "xlock",                0);
2658         setconfspawn("initscr",         "initscreen.sh",        0);
2659         setconfspawn("menu",            "dmenu_run"
2660                                         " -fn $bar_font"
2661                                         " -nb $bar_color"
2662                                         " -nf $bar_font_color"
2663                                         " -sb $bar_border"
2664                                         " -sf $bar_color",      0);
2665 }
2666
2667 /* key bindings */
2668 #define SWM_MODNAME_SIZE        32
2669 #define SWM_KEY_WS              "\n+ \t"
2670 int
2671 parsekeys(char *keystr, unsigned int currmod, unsigned int *mod, KeySym *ks)
2672 {
2673         char                    *cp, *name;
2674         KeySym                  uks;
2675         DNPRINTF(SWM_D_KEY, "parsekeys: enter [%s]\n", keystr);
2676         if (mod == NULL || ks == NULL) {
2677                 DNPRINTF(SWM_D_KEY, "parsekeys: no mod or key vars\n");
2678                 return (1);
2679         }
2680         if (keystr == NULL || strlen(keystr) == 0) {
2681                 DNPRINTF(SWM_D_KEY, "parsekeys: no keystr\n");
2682                 return (1);
2683         }
2684         cp = keystr;
2685         *ks = NoSymbol;
2686         *mod = 0;
2687         while ((name = strsep(&cp, SWM_KEY_WS)) != NULL) {
2688                 DNPRINTF(SWM_D_KEY, "parsekeys: key [%s]\n", name);
2689                 if (cp)
2690                         cp += (long)strspn(cp, SWM_KEY_WS);
2691                 if (strncasecmp(name, "MOD", SWM_MODNAME_SIZE) == 0)
2692                         *mod |= currmod;
2693                 else if (!strncasecmp(name, "Mod1", SWM_MODNAME_SIZE))
2694                         *mod |= Mod1Mask;
2695                 else if (!strncasecmp(name, "Mod2", SWM_MODNAME_SIZE))
2696                         *mod += Mod2Mask;
2697                 else if (!strncmp(name, "Mod3", SWM_MODNAME_SIZE))
2698                         *mod |= Mod3Mask;
2699                 else if (!strncmp(name, "Mod4", SWM_MODNAME_SIZE))
2700                         *mod |= Mod4Mask;
2701                 else if (strncasecmp(name, "SHIFT", SWM_MODNAME_SIZE) == 0)
2702                         *mod |= ShiftMask;
2703                 else if (strncasecmp(name, "CONTROL", SWM_MODNAME_SIZE) == 0)
2704                         *mod |= ControlMask;
2705                 else {
2706                         *ks = XStringToKeysym(name);
2707                         XConvertCase(*ks, ks, &uks);
2708                         if (ks == NoSymbol) {
2709                                 DNPRINTF(SWM_D_KEY,
2710                                     "parsekeys: invalid key %s\n",
2711                                     name);
2712                                 return (1);
2713                         }
2714                 }
2715         }
2716         DNPRINTF(SWM_D_KEY, "parsekeys: leave ok\n");
2717         return (0);
2718 }
2719
2720 char *
2721 strdupsafe(char *str)
2722 {
2723         if (str == NULL)
2724                 return (NULL);
2725         else
2726                 return (strdup(str));
2727 }
2728
2729 void
2730 setkeybinding(unsigned int mod, KeySym ks, enum keyfuncid kfid, char *spawn_name)
2731 {
2732         int                     i, j;
2733         DNPRINTF(SWM_D_KEY, "setkeybinding: enter %s [%s]\n",
2734             keyfuncs[kfid].name, spawn_name);
2735         /* find existing */
2736         for (i = 0; i < keys_length; i++) {
2737                 if (keys[i].mod == mod && keys[i].keysym == ks) {
2738                         if (kfid == kf_invalid) {
2739                                 /* found: delete */
2740                                 DNPRINTF(SWM_D_KEY,
2741                                     "setkeybinding: delete #%d %s\n",
2742                                     i, keyfuncs[keys[i].funcid].name);
2743                                 free(keys[i].spawn_name);
2744                                 j = keys_length - 1;
2745                                 if (i < j)
2746                                         keys[i] = keys[j];
2747                                 keys_length--;
2748                                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2749                                 return;
2750                         } else {
2751                                 /* found: replace */
2752                                 DNPRINTF(SWM_D_KEY,
2753                                     "setkeybinding: replace #%d %s %s\n",
2754                                     i, keyfuncs[keys[i].funcid].name,
2755                                     spawn_name);
2756                                 free(keys[i].spawn_name);
2757                                 keys[i].mod = mod;
2758                                 keys[i].keysym = ks;
2759                                 keys[i].funcid = kfid;
2760                                 keys[i].spawn_name = strdupsafe(spawn_name);
2761                                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2762                                 return;
2763                         }
2764                 }
2765         }
2766         if (kfid == kf_invalid) {
2767                 fprintf(stderr,
2768                     "error: setkeybinding: cannot find mod/key combination");
2769                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2770                 return;
2771         }
2772         /* not found: add */
2773         if (keys_size == 0 || keys == NULL) {
2774                 keys_size = 4;
2775                 DNPRINTF(SWM_D_KEY, "setkeybinding: init list %d\n", keys_size);
2776                 keys = malloc((size_t)keys_size * sizeof(struct key));
2777                 if (!keys) {
2778                         fprintf(stderr, "malloc failed\n");
2779                         perror(" failed");
2780                         quit(NULL, NULL);
2781                 }
2782         } else if (keys_length == keys_size) {
2783                 keys_size *= 2;
2784                 DNPRINTF(SWM_D_KEY, "setkeybinding: grow list %d\n", keys_size);
2785                 keys = realloc(keys, (size_t)keys_size * sizeof(struct key));
2786                 if (!keys) {
2787                         fprintf(stderr, "realloc failed\n");
2788                         perror(" failed");
2789                         quit(NULL, NULL);
2790                 }
2791         }
2792         if (keys_length < keys_size) {
2793                 j = keys_length++;
2794                 DNPRINTF(SWM_D_KEY, "setkeybinding: add #%d %s %s\n",
2795                     j, keyfuncs[kfid].name, spawn_name);
2796                 keys[j].mod = mod;
2797                 keys[j].keysym = ks;
2798                 keys[j].funcid = kfid;
2799                 keys[j].spawn_name = strdupsafe(spawn_name);
2800         } else {
2801                 fprintf(stderr, "keys array problem?\n");
2802                 if (!keys) {
2803                         fprintf(stderr, "keys array problem\n");
2804                         quit(NULL, NULL);
2805                 }
2806         }
2807         DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2808 }
2809
2810 int
2811 setconfbinding(char *selector, char *value, int flags)
2812 {
2813         enum keyfuncid          kfid;
2814         unsigned int            mod;
2815         KeySym                  ks;
2816         int                     i;
2817         DNPRINTF(SWM_D_KEY, "setconfbinding: enter\n");
2818         if (selector == NULL) {
2819                 DNPRINTF(SWM_D_KEY, "setconfbinding: unbind %s\n", value);
2820                 if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2821                         kfid = kf_invalid;
2822                         setkeybinding(mod, ks, kfid, NULL);
2823                         return (0);
2824                 } else
2825                         return (1);
2826         }
2827         /* search by key function name */
2828         for (kfid = 0; kfid < kf_invalid; (kfid)++) {
2829                 if (strncasecmp(selector, keyfuncs[kfid].name,
2830                     SWM_FUNCNAME_LEN) == 0) {
2831                         DNPRINTF(SWM_D_KEY, "setconfbinding: %s: match\n",
2832                             selector);
2833                         if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2834                                 setkeybinding(mod, ks, kfid, NULL);
2835                                 return (0);
2836                         } else
2837                                 return (1);
2838                 }
2839         }
2840         /* search by custom spawn name */
2841         for (i = 0; i < spawns_length; i++) {
2842                 if (strcasecmp(selector, spawns[i].name) == 0) {
2843                         DNPRINTF(SWM_D_KEY, "setconfbinding: %s: match\n",
2844                             selector);
2845                         if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2846                                 setkeybinding(mod, ks, kf_spawn_custom,
2847                                     spawns[i].name);
2848                                 return (0);
2849                         } else
2850                                 return (1);
2851                 }
2852         }
2853         DNPRINTF(SWM_D_KEY, "setconfbinding: no match\n");
2854         return (1);
2855 }
2856
2857 void
2858 setup_keys(void)
2859 {
2860         setkeybinding(MODKEY,           XK_space,       kf_cycle_layout,NULL);
2861         setkeybinding(MODKEY|ShiftMask, XK_space,       kf_stack_reset, NULL);
2862         setkeybinding(MODKEY,           XK_h,           kf_master_shrink,NULL);
2863         setkeybinding(MODKEY,           XK_l,           kf_master_grow, NULL);
2864         setkeybinding(MODKEY,           XK_comma,       kf_master_add,  NULL);
2865         setkeybinding(MODKEY,           XK_period,      kf_master_del,  NULL);
2866         setkeybinding(MODKEY|ShiftMask, XK_comma,       kf_stack_inc,   NULL);
2867         setkeybinding(MODKEY|ShiftMask, XK_period,      kf_stack_dec,   NULL);
2868         setkeybinding(MODKEY,           XK_Return,      kf_swap_main,   NULL);
2869         setkeybinding(MODKEY,           XK_j,           kf_focus_next,  NULL);
2870         setkeybinding(MODKEY,           XK_k,           kf_focus_prev,  NULL);
2871         setkeybinding(MODKEY|ShiftMask, XK_j,           kf_swap_next,   NULL);
2872         setkeybinding(MODKEY|ShiftMask, XK_k,           kf_swap_prev,   NULL);
2873         setkeybinding(MODKEY|ShiftMask, XK_Return,      kf_spawn_term,  NULL);
2874         setkeybinding(MODKEY,           XK_p,           kf_spawn_custom,        "menu");
2875         setkeybinding(MODKEY|ShiftMask, XK_q,           kf_quit,        NULL);
2876         setkeybinding(MODKEY,           XK_q,           kf_restart,     NULL);
2877         setkeybinding(MODKEY,           XK_m,           kf_focus_main,  NULL);
2878         setkeybinding(MODKEY,           XK_1,           kf_ws_1,        NULL);
2879         setkeybinding(MODKEY,           XK_2,           kf_ws_2,        NULL);
2880         setkeybinding(MODKEY,           XK_3,           kf_ws_3,        NULL);
2881         setkeybinding(MODKEY,           XK_4,           kf_ws_4,        NULL);
2882         setkeybinding(MODKEY,           XK_5,           kf_ws_5,        NULL);
2883         setkeybinding(MODKEY,           XK_6,           kf_ws_6,        NULL);
2884         setkeybinding(MODKEY,           XK_7,           kf_ws_7,        NULL);
2885         setkeybinding(MODKEY,           XK_8,           kf_ws_8,        NULL);
2886         setkeybinding(MODKEY,           XK_9,           kf_ws_9,        NULL);
2887         setkeybinding(MODKEY,           XK_0,           kf_ws_10,       NULL);
2888         setkeybinding(MODKEY,           XK_Right,       kf_ws_next,     NULL);
2889         setkeybinding(MODKEY,           XK_Left,        kf_ws_prev,     NULL);
2890         setkeybinding(MODKEY|ShiftMask, XK_Right,       kf_screen_next, NULL);
2891         setkeybinding(MODKEY|ShiftMask, XK_Left,        kf_screen_prev, NULL);
2892         setkeybinding(MODKEY|ShiftMask, XK_1,           kf_mvws_1,      NULL);
2893         setkeybinding(MODKEY|ShiftMask, XK_2,           kf_mvws_2,      NULL);
2894         setkeybinding(MODKEY|ShiftMask, XK_3,           kf_mvws_3,      NULL);
2895         setkeybinding(MODKEY|ShiftMask, XK_4,           kf_mvws_4,      NULL);
2896         setkeybinding(MODKEY|ShiftMask, XK_5,           kf_mvws_5,      NULL);
2897         setkeybinding(MODKEY|ShiftMask, XK_6,           kf_mvws_6,      NULL);
2898         setkeybinding(MODKEY|ShiftMask, XK_7,           kf_mvws_7,      NULL);
2899         setkeybinding(MODKEY|ShiftMask, XK_8,           kf_mvws_8,      NULL);
2900         setkeybinding(MODKEY|ShiftMask, XK_9,           kf_mvws_9,      NULL);
2901         setkeybinding(MODKEY|ShiftMask, XK_0,           kf_mvws_10,     NULL);
2902         setkeybinding(MODKEY,           XK_b,           kf_bar_toggle,  NULL);
2903         setkeybinding(MODKEY,           XK_Tab,         kf_focus_next,  NULL);
2904         setkeybinding(MODKEY|ShiftMask, XK_Tab,         kf_focus_prev,  NULL);
2905         setkeybinding(MODKEY|ShiftMask, XK_x,           kf_wind_kill,   NULL);
2906         setkeybinding(MODKEY,           XK_x,           kf_wind_del,    NULL);
2907         setkeybinding(MODKEY,           XK_s,           kf_spawn_custom,        "screenshot_all");
2908         setkeybinding(MODKEY|ShiftMask, XK_s,           kf_spawn_custom,        "screenshot_wind");
2909         setkeybinding(MODKEY,           XK_t,           kf_float_toggle,NULL);
2910         setkeybinding(MODKEY|ShiftMask, XK_v,           kf_version,     NULL);
2911         setkeybinding(MODKEY|ShiftMask, XK_Delete,      kf_spawn_custom,        "lock");
2912         setkeybinding(MODKEY|ShiftMask, XK_i,           kf_spawn_custom,        "initscr");
2913 #ifdef SWM_DEBUG
2914         setkeybinding(MODKEY|ShiftMask, XK_d,           kf_dumpwins,    NULL);
2915 #endif
2916 }
2917
2918 void
2919 updatenumlockmask(void)
2920 {
2921         unsigned int            i, j;
2922         XModifierKeymap         *modmap;
2923
2924         DNPRINTF(SWM_D_MISC, "updatenumlockmask\n");
2925         numlockmask = 0;
2926         modmap = XGetModifierMapping(display);
2927         for (i = 0; i < 8; i++)
2928                 for (j = 0; j < modmap->max_keypermod; j++)
2929                         if (modmap->modifiermap[i * modmap->max_keypermod + j]
2930                           == XKeysymToKeycode(display, XK_Num_Lock))
2931                                 numlockmask = (1 << i);
2932
2933         XFreeModifiermap(modmap);
2934 }
2935
2936 void
2937 grabkeys(void)
2938 {
2939         unsigned int            i, j, k;
2940         KeyCode                 code;
2941         unsigned int            modifiers[] =
2942             { 0, LockMask, numlockmask, numlockmask | LockMask };
2943
2944         DNPRINTF(SWM_D_MISC, "grabkeys\n");
2945         updatenumlockmask();
2946
2947         for (k = 0; k < ScreenCount(display); k++) {
2948                 if (TAILQ_EMPTY(&screens[k].rl))
2949                         continue;
2950                 XUngrabKey(display, AnyKey, AnyModifier, screens[k].root);
2951                 for (i = 0; i < keys_length; i++) {
2952                         if ((code = XKeysymToKeycode(display, keys[i].keysym)))
2953                                 for (j = 0; j < LENGTH(modifiers); j++)
2954                                         XGrabKey(display, code,
2955                                             keys[i].mod | modifiers[j],
2956                                             screens[k].root, True,
2957                                             GrabModeAsync, GrabModeAsync);
2958                 }
2959         }
2960 }
2961
2962 void
2963 grabbuttons(struct ws_win *win, int focused)
2964 {
2965         unsigned int            i, j;
2966         unsigned int            modifiers[] =
2967             { 0, LockMask, numlockmask, numlockmask|LockMask };
2968
2969         updatenumlockmask();
2970         XUngrabButton(display, AnyButton, AnyModifier, win->id);
2971         if(focused) {
2972                 for (i = 0; i < LENGTH(buttons); i++)
2973                         if (buttons[i].action == client_click)
2974                                 for (j = 0; j < LENGTH(modifiers); j++)
2975                                         XGrabButton(display, buttons[i].button,
2976                                             buttons[i].mask | modifiers[j],
2977                                             win->id, False, BUTTONMASK,
2978                                             GrabModeAsync, GrabModeSync, None,
2979                                             None);
2980         } else
2981                 XGrabButton(display, AnyButton, AnyModifier, win->id, False,
2982                     BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
2983 }
2984
2985 const char *quirkname[] = {
2986         "NONE",         /* config string for "no value" */
2987         "FLOAT",
2988         "TRANSSZ",
2989         "ANYWHERE",
2990         "XTERM_FONTADJ",
2991         "FULLSCREEN",
2992 };
2993
2994 /* SWM_Q_WS: retain '|' for back compat for now (2009-08-11) */
2995 #define SWM_Q_WS                "\n|+ \t"
2996 int
2997 parsequirks(char *qstr, unsigned long *quirk)
2998 {
2999         char                    *cp, *name;
3000         int                     i;
3001
3002         if (quirk == NULL)
3003                 return (1);
3004
3005         cp = qstr;
3006         *quirk = 0;
3007         while ((name = strsep(&cp, SWM_Q_WS)) != NULL) {
3008                 if (cp)
3009                         cp += (long)strspn(cp, SWM_Q_WS);
3010                 for (i = 0; i < LENGTH(quirkname); i++) {
3011                         if (!strncasecmp(name, quirkname[i], SWM_QUIRK_LEN)) {
3012                                 DNPRINTF(SWM_D_QUIRK, "parsequirks: %s\n", name);
3013                                 if (i == 0) {
3014                                         *quirk = 0;
3015                                         return (0);
3016                                 }
3017                                 *quirk |= 1 << (i-1);
3018                                 break;
3019                         }
3020                 }
3021                 if (i >= LENGTH(quirkname)) {
3022                         DNPRINTF(SWM_D_QUIRK,
3023                             "parsequirks: invalid quirk [%s]\n", name);
3024                         return (1);
3025                 }
3026         }
3027         return (0);
3028 }
3029
3030 void
3031 setquirk(const char *class, const char *name, const int quirk)
3032 {
3033         int                     i, j;
3034
3035         /* find existing */
3036         for (i = 0; i < quirks_length; i++) {
3037                 if (!strcmp(quirks[i].class, class) &&
3038                     !strcmp(quirks[i].name, name)) {
3039                         if (!quirk) {
3040                                 /* found: delete */
3041                                 DNPRINTF(SWM_D_QUIRK,
3042                                     "setquirk: delete #%d %s:%s\n",
3043                                     i, quirks[i].class, quirks[i].name);
3044                                 free(quirks[i].class);
3045                                 free(quirks[i].name);
3046                                 j = quirks_length - 1;
3047                                 if (i < j)
3048                                         quirks[i] = quirks[j];
3049                                 quirks_length--;
3050                                 return;
3051                         } else {
3052                                 /* found: replace */
3053                                 DNPRINTF(SWM_D_QUIRK,
3054                                     "setquirk: replace #%d %s:%s\n",
3055                                     i, quirks[i].class, quirks[i].name);
3056                                 free(quirks[i].class);
3057                                 free(quirks[i].name);
3058                                 quirks[i].class = strdup(class);
3059                                 quirks[i].name = strdup(name);
3060                                 quirks[i].quirk = quirk;
3061                                 return;
3062                         }
3063                 }
3064         }
3065         if (!quirk) {
3066                 fprintf(stderr,
3067                     "error: setquirk: cannot find class/name combination");
3068                 return;
3069         }
3070         /* not found: add */
3071         if (quirks_size == 0 || quirks == NULL) {
3072                 quirks_size = 4;
3073                 DNPRINTF(SWM_D_QUIRK, "setquirk: init list %d\n", quirks_size);
3074                 quirks = malloc((size_t)quirks_size * sizeof(struct quirk));
3075                 if (!quirks) {
3076                         fprintf(stderr, "setquirk: malloc failed\n");
3077                         perror(" failed");
3078                         quit(NULL, NULL);
3079                 }
3080         } else if (quirks_length == quirks_size) {
3081                 quirks_size *= 2;
3082                 DNPRINTF(SWM_D_QUIRK, "setquirk: grow list %d\n", quirks_size);
3083                 quirks = realloc(quirks, (size_t)quirks_size * sizeof(struct quirk));
3084                 if (!quirks) {
3085                         fprintf(stderr, "setquirk: realloc failed\n");
3086                         perror(" failed");
3087                         quit(NULL, NULL);
3088                 }
3089         }
3090         if (quirks_length < quirks_size) {
3091                 DNPRINTF(SWM_D_QUIRK, "setquirk: add %d\n", quirks_length);
3092                 j = quirks_length++;
3093                 quirks[j].class = strdup(class);
3094                 quirks[j].name = strdup(name);
3095                 quirks[j].quirk = quirk;
3096         } else {
3097                 fprintf(stderr, "quirks array problem?\n");
3098                 if (!quirks) {
3099                         fprintf(stderr, "quirks array problem!\n");
3100                         quit(NULL, NULL);
3101                 }
3102         }
3103 }
3104
3105 int
3106 setconfquirk(char *selector, char *value, int flags)
3107 {
3108         char                    *cp, *class, *name;
3109         int                     retval;
3110         unsigned long           quirks;
3111         if (selector == NULL)
3112                 return (0);
3113         if ((cp = strchr(selector, ':')) == NULL)
3114                 return (0);
3115         *cp = '\0';
3116         class = selector;
3117         name = cp + 1;
3118         if ((retval = parsequirks(value, &quirks)) == 0)
3119                 setquirk(class, name, quirks);
3120         return (retval);
3121 }
3122
3123 void
3124 setup_quirks(void)
3125 {
3126         setquirk("MPlayer",             "xv",           SWM_Q_FLOAT | SWM_Q_FULLSCREEN);
3127         setquirk("OpenOffice.org 2.4",  "VCLSalFrame",  SWM_Q_FLOAT);
3128         setquirk("OpenOffice.org 3.0",  "VCLSalFrame",  SWM_Q_FLOAT);
3129         setquirk("Firefox-bin",         "firefox-bin",  SWM_Q_TRANSSZ);
3130         setquirk("Firefox",             "Dialog",       SWM_Q_FLOAT);
3131         setquirk("Gimp",                "gimp",         SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3132         setquirk("XTerm",               "xterm",        SWM_Q_XTERM_FONTADJ);
3133         setquirk("xine",                "Xine Window",  SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3134         setquirk("Xitk",                "Xitk Combo",   SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3135         setquirk("xine",                "xine Panel",   SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3136         setquirk("Xitk",                "Xine Window",  SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3137         setquirk("xine",                "xine Video Fullscreen Window", SWM_Q_FULLSCREEN | SWM_Q_FLOAT);
3138         setquirk("pcb",                 "pcb",          SWM_Q_FLOAT);
3139 }
3140
3141 /* conf file stuff */
3142 #define SWM_CONF_FILE   "scrotwm.conf"
3143
3144 enum    { SWM_S_BAR_DELAY, SWM_S_BAR_ENABLED, SWM_S_STACK_ENABLED,
3145           SWM_S_CLOCK_ENABLED, SWM_S_CYCLE_EMPTY, SWM_S_CYCLE_VISIBLE,
3146           SWM_S_SS_ENABLED, SWM_S_TERM_WIDTH, SWM_S_TITLE_CLASS_ENABLED,
3147           SWM_S_TITLE_NAME_ENABLED, SWM_S_BAR_FONT, SWM_S_BAR_ACTION,
3148           SWM_S_SPAWN_TERM, SWM_S_SS_APP, SWM_S_DIALOG_RATIO };
3149
3150 int
3151 setconfvalue(char *selector, char *value, int flags)
3152 {
3153         switch (flags) {
3154         case SWM_S_BAR_DELAY:
3155                 bar_delay = atoi(value);
3156                 break;
3157         case SWM_S_BAR_ENABLED:
3158                 bar_enabled = atoi(value);
3159                 break;
3160         case SWM_S_STACK_ENABLED:
3161                 stack_enabled = atoi(value);
3162                 break;
3163         case SWM_S_CLOCK_ENABLED:
3164                 clock_enabled = atoi(value);
3165                 break;
3166         case SWM_S_CYCLE_EMPTY:
3167                 cycle_empty = atoi(value);
3168                 break;
3169         case SWM_S_CYCLE_VISIBLE:
3170                 cycle_visible = atoi(value);
3171                 break;
3172         case SWM_S_SS_ENABLED:
3173                 ss_enabled = atoi(value);
3174                 break;
3175         case SWM_S_TERM_WIDTH:
3176                 term_width = atoi(value);
3177                 break;
3178         case SWM_S_TITLE_CLASS_ENABLED:
3179                 title_class_enabled = atoi(value);
3180                 break;
3181         case SWM_S_TITLE_NAME_ENABLED:
3182                 title_name_enabled = atoi(value);
3183                 break;
3184         case SWM_S_BAR_FONT:
3185                 free(bar_fonts[0]);
3186                 if ((bar_fonts[0] = strdup(value)) == NULL)
3187                         err(1, "setconfvalue: bar_font");
3188                 break;
3189         case SWM_S_BAR_ACTION:
3190                 free(bar_argv[0]);
3191                 if ((bar_argv[0] = strdup(value)) == NULL)
3192                         err(1, "setconfvalue: bar_action");
3193                 break;
3194         case SWM_S_SPAWN_TERM:
3195                 free(spawn_term[0]);
3196                 if ((spawn_term[0] = strdup(value)) == NULL)
3197                         err(1, "setconfvalue: spawn_term");
3198                 break;
3199         case SWM_S_SS_APP:
3200                 break;
3201         case SWM_S_DIALOG_RATIO:
3202                 dialog_ratio = atof(value);
3203                 if (dialog_ratio > 1.0 || dialog_ratio <= .3)
3204                         dialog_ratio = .6;
3205                 break;
3206         default:
3207                 return (1);
3208         }
3209         return (0);
3210 }
3211
3212 int
3213 setconfmodkey(char *selector, char *value, int flags)
3214 {
3215         if (!strncasecmp(value, "Mod1", strlen("Mod1")))
3216                 update_modkey(Mod1Mask);
3217         else if (!strncasecmp(value, "Mod2", strlen("Mod2")))
3218                 update_modkey(Mod2Mask);
3219         else if (!strncasecmp(value, "Mod3", strlen("Mod3")))
3220                 update_modkey(Mod3Mask);
3221         else if (!strncasecmp(value, "Mod4", strlen("Mod4")))
3222                 update_modkey(Mod4Mask);
3223         else
3224                 return (1);
3225         return (0);
3226 }
3227
3228 int
3229 setconfcolor(char *selector, char *value, int flags)
3230 {
3231         setscreencolor(value, ((selector == NULL)?-1:atoi(selector)), flags);
3232         return (0);
3233 }
3234
3235 int
3236 setconfregion(char *selector, char *value, int flags)
3237 {
3238         custom_region(value);
3239         return (0);
3240 }
3241
3242 /* config options */
3243 struct config_option {
3244         char                    *optname;
3245         int (*func)(char*, char*, int);
3246         int funcflags;
3247 };
3248 struct config_option configopt[] = {
3249         { "bar_enabled",                setconfvalue,   SWM_S_BAR_ENABLED },
3250         { "bar_border",                 setconfcolor,   SWM_S_COLOR_BAR_BORDER },
3251         { "bar_color",                  setconfcolor,   SWM_S_COLOR_BAR },
3252         { "bar_font_color",             setconfcolor,   SWM_S_COLOR_BAR_FONT },
3253         { "bar_font",                   setconfvalue,   SWM_S_BAR_FONT },
3254         { "bar_action",                 setconfvalue,   SWM_S_BAR_ACTION },
3255         { "bar_delay",                  setconfvalue,   SWM_S_BAR_DELAY },
3256         { "bind",                       setconfbinding, 0 },
3257         { "stack_enabled",              setconfvalue,   SWM_S_STACK_ENABLED },
3258         { "clock_enabled",              setconfvalue,   SWM_S_CLOCK_ENABLED },
3259         { "color_focus",                setconfcolor,   SWM_S_COLOR_FOCUS },
3260         { "color_unfocus",              setconfcolor,   SWM_S_COLOR_UNFOCUS },
3261         { "cycle_empty",                setconfvalue,   SWM_S_CYCLE_EMPTY },
3262         { "cycle_visible",              setconfvalue,   SWM_S_CYCLE_VISIBLE },
3263         { "dialog_ratio",               setconfvalue,   SWM_S_DIALOG_RATIO },
3264         { "modkey",                     setconfmodkey,  0 },
3265         { "program",                    setconfspawn,   0 },
3266         { "quirk",                      setconfquirk,   0 },
3267         { "region",                     setconfregion,  0 },
3268         { "spawn_term",                 setconfvalue,   SWM_S_SPAWN_TERM },
3269         { "screenshot_enabled",         setconfvalue,   SWM_S_SS_ENABLED },
3270         { "screenshot_app",             setconfvalue,   SWM_S_SS_APP },
3271         { "term_width",                 setconfvalue,   SWM_S_TERM_WIDTH },
3272         { "title_class_enabled",        setconfvalue,   SWM_S_TITLE_CLASS_ENABLED },
3273         { "title_name_enabled",         setconfvalue,   SWM_S_TITLE_NAME_ENABLED }
3274 };
3275
3276
3277 int
3278 conf_load(char *filename)
3279 {
3280         FILE                    *config;
3281         char                    *line, *cp, *optsub, *optval;
3282         size_t                  linelen, lineno = 0;
3283         int                     wordlen, i, optind;
3284         struct config_option    *opt;
3285
3286         DNPRINTF(SWM_D_CONF, "conf_load begin\n");
3287
3288         if (filename == NULL) {
3289                 fprintf(stderr, "conf_load: no filename\n");
3290                 return (1);
3291         }
3292         if ((config = fopen(filename, "r")) == NULL) {
3293                 warn("conf_load: fopen");
3294                 return (1);
3295         }
3296
3297         while (!feof(config)) {
3298                 if ((line = fparseln(config, &linelen, &lineno, NULL, 0))
3299                     == NULL) {
3300                         if (ferror(config))
3301                                 err(1, "%s", filename);
3302                         else
3303                                 continue;
3304                 }
3305                 cp = line;
3306                 cp += strspn(cp, " \t\n"); /* eat whitespace */
3307                 if (cp[0] == '\0') {
3308                         /* empty line */
3309                         free(line);
3310                         continue;
3311                 }
3312                 /* get config option */
3313                 wordlen = strcspn(cp, "=[ \t\n");
3314                 if (wordlen == 0) {
3315                         warnx("%s: line %zd: no option found",
3316                             filename, lineno);
3317                         return (1);
3318                 }
3319                 optind = -1;
3320                 for (i = 0; i < LENGTH(configopt); i++) {
3321                         opt = &configopt[i];
3322                         if (!strncasecmp(cp, opt->optname, wordlen) &&
3323                             strlen(opt->optname) == wordlen) {
3324                                 optind = i;
3325                                 break;
3326                         }
3327                 }
3328                 if (optind == -1) {
3329                         warnx("%s: line %zd: unknown option %.*s",
3330                             filename, lineno, wordlen, cp);
3331                         return (1);
3332                 }
3333                 cp += wordlen;
3334                 cp += strspn(cp, " \t\n"); /* eat whitespace */
3335                 /* get [selector] if any */
3336                 optsub = NULL;
3337                 if (*cp == '[') {
3338                         cp++;
3339                         wordlen = strcspn(cp, "]");
3340                         if (*cp != ']') {
3341                                 if (wordlen == 0) {
3342                                         warnx("%s: line %zd: syntax error",
3343                                             filename, lineno);
3344                                         return (1);
3345                                 }
3346                                 asprintf(&optsub, "%.*s", wordlen, cp);
3347                         }
3348                         cp += wordlen;
3349                         cp += strspn(cp, "] \t\n"); /* eat trailing */
3350                 }
3351                 cp += strspn(cp, "= \t\n"); /* eat trailing */
3352                 /* get RHS value */
3353                 optval = strdup(cp);
3354                 /* call function to deal with it all */
3355                 if (configopt[optind].func(optsub, optval,
3356                     configopt[optind].funcflags) != 0) {
3357                         fprintf(stderr, "%s line %zd: %s\n",
3358                             filename, lineno, line);
3359                         errx(1, "%s: line %zd: invalid data for %s",
3360                             filename, lineno, configopt[optind].optname);
3361                 }
3362                 free(optval);
3363                 free(optsub);
3364                 free(line);
3365         }
3366
3367         fclose(config);
3368         DNPRINTF(SWM_D_CONF, "conf_load end\n");
3369
3370         return (0);
3371 }
3372
3373 struct ws_win *
3374 manage_window(Window id)
3375 {
3376         Window                  trans = 0;
3377         struct workspace        *ws;
3378         struct ws_win           *win, *ww, *parent;
3379         int                     format, i, ws_idx, n, border_me = 0;
3380         unsigned long           nitems, bytes;
3381         Atom                    ws_idx_atom = 0, type;
3382         Atom                    *prot = NULL, *pp;
3383         unsigned char           ws_idx_str[SWM_PROPLEN], *prop = NULL;
3384         struct swm_region       *r;
3385         long                    mask;
3386         const char              *errstr;
3387         XWindowChanges          wc;
3388
3389         if ((win = find_window(id)) != NULL)
3390                 return (win);   /* already being managed */
3391
3392         /* see if we are on the unmanaged list */
3393         if ((win = find_unmanaged_window(id)) != NULL) {
3394                 DNPRINTF(SWM_D_MISC, "manage previously unmanaged window "
3395                     "%lu\n", win->id);
3396                 TAILQ_REMOVE(&win->ws->unmanagedlist, win, entry);
3397                 TAILQ_INSERT_TAIL(&win->ws->winlist, win, entry);
3398                 return (win);
3399         }
3400
3401         if ((win = calloc(1, sizeof(struct ws_win))) == NULL)
3402                 errx(1, "calloc: failed to allocate memory for new window");
3403
3404         /* Get all the window data in one shot */
3405         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
3406         if (ws_idx_atom)
3407                 XGetWindowProperty(display, id, ws_idx_atom, 0, SWM_PROPLEN,
3408                     False, XA_STRING, &type, &format, &nitems, &bytes, &prop);
3409         XGetWindowAttributes(display, id, &win->wa);
3410         XGetWMNormalHints(display, id, &win->sh, &mask);
3411         XGetTransientForHint(display, id, &trans);
3412         if (trans) {
3413                 win->transient = trans;
3414                 parent = find_window(win->transient);
3415                 if (parent)
3416                         parent->child_trans = win;
3417                 DNPRINTF(SWM_D_MISC, "manage_window: win %u transient %u\n",
3418                     (unsigned)win->id, win->transient);
3419         }
3420         /* get supported protocols */
3421         if (XGetWMProtocols(display, id, &prot, &n)) {
3422                 for (i = 0, pp = prot; i < n; i++, pp++) {
3423                         if (*pp == takefocus)
3424                                 win->take_focus = 1;
3425                         if (*pp == adelete)
3426                                 win->can_delete = 1;
3427                 }
3428                 if (prot)
3429                         XFree(prot);
3430         }
3431
3432         /*
3433          * Figure out where to put the window. If it was previously assigned to
3434          * a workspace (either by spawn() or manually moving), and isn't
3435          * transient, * put it in the same workspace
3436          */
3437         r = root_to_region(win->wa.root);
3438         if (prop && win->transient == 0) {
3439                 DNPRINTF(SWM_D_PROP, "got property _SWM_WS=%s\n", prop);
3440                 ws_idx = strtonum(prop, 0, 9, &errstr);
3441                 if (errstr) {
3442                         DNPRINTF(SWM_D_EVENT, "window idx is %s: %s",
3443                             errstr, prop);
3444                 }
3445                 ws = &r->s->ws[ws_idx];
3446         } else {
3447                 ws = r->ws;
3448                 /* this should launch transients in the same ws as parent */
3449                 if (id && trans)
3450                         if ((ww = find_window(trans)) != NULL)
3451                                 if (ws->r) {
3452                                         ws = ww->ws;
3453                                         if (ww->ws->r)
3454                                                 r = ww->ws->r;
3455                                         else
3456                                                 fprintf(stderr,
3457                                                     "fix this bug mcbride\n");
3458                                         border_me = 1;
3459                                 }
3460         }
3461
3462         /* set up the window layout */
3463         win->id = id;
3464         win->ws = ws;
3465         win->s = r->s;  /* this never changes */
3466         TAILQ_INSERT_TAIL(&ws->winlist, win, entry);
3467
3468         win->g.w = win->wa.width;
3469         win->g.h = win->wa.height;
3470         win->g.x = win->wa.x;
3471         win->g.y = win->wa.y;
3472
3473         /* Set window properties so we can remember this after reincarnation */
3474         if (ws_idx_atom && prop == NULL &&
3475             snprintf(ws_idx_str, SWM_PROPLEN, "%d", ws->idx) < SWM_PROPLEN) {
3476                 DNPRINTF(SWM_D_PROP, "setting property _SWM_WS to %s\n",
3477                     ws_idx_str);
3478                 XChangeProperty(display, win->id, ws_idx_atom, XA_STRING, 8,
3479                     PropModeReplace, ws_idx_str, SWM_PROPLEN);
3480         }
3481         XFree(prop);
3482
3483         if (XGetClassHint(display, win->id, &win->ch)) {
3484                 DNPRINTF(SWM_D_CLASS, "class: %s name: %s\n",
3485                     win->ch.res_class, win->ch.res_name);
3486
3487                 /* java is retarded so treat it special */
3488                 if (strstr(win->ch.res_name, "sun-awt"))
3489                         win->java = 1;
3490
3491                 for (i = 0; i < quirks_length; i++){
3492                         if (!strcmp(win->ch.res_class, quirks[i].class) &&
3493                             !strcmp(win->ch.res_name, quirks[i].name)) {
3494                                 DNPRINTF(SWM_D_CLASS, "found: %s name: %s\n",
3495                                     win->ch.res_class, win->ch.res_name);
3496                                 if (quirks[i].quirk & SWM_Q_FLOAT) {
3497                                         win->floating = 1;
3498                                         border_me = 1;
3499                                 }
3500                                 win->quirks = quirks[i].quirk;
3501                         }
3502                 }
3503         }
3504
3505         /* alter window position if quirky */
3506         if (win->quirks & SWM_Q_ANYWHERE) {
3507                 win->manual = 1; /* don't center the quirky windows */
3508                 bzero(&wc, sizeof wc);
3509                 mask = 0;
3510                 if (win->g.y < bar_height) {
3511                         win->g.y = wc.y = bar_height;
3512                         mask |= CWY;
3513                 }
3514                 if (win->g.w + win->g.x > WIDTH(r)) {
3515                         win->g.x = wc.x = WIDTH(r) - win->g.w - 2;
3516                         mask |= CWX;
3517                 }
3518                 border_me = 1;
3519         }
3520
3521         /* Reset font sizes (the bruteforce way; no default keybinding). */
3522         if (win->quirks & SWM_Q_XTERM_FONTADJ) {
3523                 for (i = 0; i < SWM_MAX_FONT_STEPS; i++)
3524                         fake_keypress(win, XK_KP_Subtract, ShiftMask);
3525                 for (i = 0; i < SWM_MAX_FONT_STEPS; i++)
3526                         fake_keypress(win, XK_KP_Add, ShiftMask);
3527         }
3528
3529         /* border me */
3530         if (border_me) {
3531                 bzero(&wc, sizeof wc);
3532                 wc.border_width = 1;
3533                 mask = CWBorderWidth;
3534                 XConfigureWindow(display, win->id, mask, &wc);
3535                 configreq_win(win);
3536         }
3537
3538         XSelectInput(display, id, EnterWindowMask | FocusChangeMask |
3539             PropertyChangeMask | StructureNotifyMask);
3540
3541         set_win_state(win, NormalState);
3542
3543         /* floaters need to be mapped if they are in the current workspace */
3544         if ((win->floating || win->transient) && (ws->idx == r->ws->idx))
3545                 XMapRaised(display, win->id);
3546
3547         return (win);
3548 }
3549
3550 void
3551 free_window(struct ws_win *win)
3552 {
3553         DNPRINTF(SWM_D_MISC, "free_window:  %lu\n", win->id);
3554
3555         if (win == NULL)
3556                 return;
3557
3558         /* needed for restart wm */
3559         set_win_state(win, WithdrawnState);
3560
3561         TAILQ_REMOVE(&win->ws->unmanagedlist, win, entry);
3562
3563         if (win->ch.res_class)
3564                 XFree(win->ch.res_class);
3565         if (win->ch.res_name)
3566                 XFree(win->ch.res_name);
3567         free(win);
3568 }
3569
3570 void
3571 unmanage_window(struct ws_win *win)
3572 {
3573         struct ws_win           *parent;
3574
3575         if (win == NULL)
3576                 return;
3577
3578         DNPRINTF(SWM_D_MISC, "unmanage_window:  %lu\n", win->id);
3579
3580         if (win->transient) {
3581                 parent = find_window(win->transient);
3582                 if (parent)
3583                         parent->child_trans = NULL;
3584         }
3585
3586         TAILQ_REMOVE(&win->ws->winlist, win, entry);
3587         TAILQ_INSERT_TAIL(&win->ws->unmanagedlist, win, entry);
3588 }
3589
3590 void
3591 focus_magic(struct ws_win *win)
3592 {
3593         if (win->child_trans) {
3594                 /* win = parent & has a transient so focus on that */
3595                 if (win->java) {
3596                         focus_win(win->child_trans);
3597                         if (win->child_trans->take_focus)
3598                                 client_msg(win, takefocus);
3599                 } else {
3600                         focus_win(win->child_trans);
3601                         if (win->child_trans->take_focus)
3602                                 client_msg(win->child_trans, takefocus);
3603                 }
3604         } else {
3605                 /* regular focus */
3606                 focus_win(win);
3607                 if (win->take_focus)
3608                         client_msg(win, takefocus);
3609         }
3610 }
3611
3612 Bool
3613 destroy_notify_cb(Display *d, XEvent *e, char *arg)
3614 {
3615         struct ws_win           *win = (struct ws_win *)arg;
3616         if (win && win->id == e->xany.window && e->xany.type == DestroyNotify)
3617                         return (True);
3618         return (False);
3619 }
3620
3621 void
3622 expose(XEvent *e)
3623 {
3624         DNPRINTF(SWM_D_EVENT, "expose: window: %lu\n", e->xexpose.window);
3625 }
3626
3627 void
3628 keypress(XEvent *e)
3629 {
3630         unsigned int            i;
3631         KeySym                  keysym;
3632         XKeyEvent               *ev = &e->xkey;
3633
3634         DNPRINTF(SWM_D_EVENT, "keypress: window: %lu\n", ev->window);
3635
3636         keysym = XKeycodeToKeysym(display, (KeyCode)ev->keycode, 0);
3637         for (i = 0; i < keys_length; i++)
3638                 if (keysym == keys[i].keysym
3639                    && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
3640                    && keyfuncs[keys[i].funcid].func) {
3641                         if (keys[i].funcid == kf_spawn_custom)
3642                                 spawn_custom(
3643                                     root_to_region(ev->root),
3644                                     &(keyfuncs[keys[i].funcid].args),
3645                                     keys[i].spawn_name
3646                                     );
3647                         else
3648                                 keyfuncs[keys[i].funcid].func(
3649                                     root_to_region(ev->root),
3650                                     &(keyfuncs[keys[i].funcid].args)
3651                                     );
3652                 }
3653 }
3654
3655 void
3656 buttonpress(XEvent *e)
3657 {
3658         XButtonPressedEvent     *ev = &e->xbutton;
3659
3660         struct ws_win           *win;
3661         int                     i, action;
3662
3663         DNPRINTF(SWM_D_EVENT, "buttonpress: window: %lu\n", ev->window);
3664
3665         action = root_click;
3666         if ((win = find_window(ev->window)) == NULL)
3667                 return;
3668
3669         focus_magic(win);
3670         action = client_click;
3671
3672         for (i = 0; i < LENGTH(buttons); i++)
3673                 if (action == buttons[i].action && buttons[i].func &&
3674                     buttons[i].button == ev->button &&
3675                     CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
3676                         buttons[i].func(win, &buttons[i].args);
3677 }
3678
3679 void
3680 configurerequest(XEvent *e)
3681 {
3682         XConfigureRequestEvent  *ev = &e->xconfigurerequest;
3683         struct ws_win           *win;
3684         int                     new = 0;
3685         XWindowChanges          wc;
3686
3687         if ((win = find_window(ev->window)) == NULL)
3688                 if ((win = find_unmanaged_window(ev->window)) == NULL)
3689                         new = 1;
3690
3691         if (new) {
3692                 DNPRINTF(SWM_D_EVENT, "configurerequest: new window: %lu\n",
3693                     ev->window);
3694                 bzero(&wc, sizeof wc);
3695                 wc.x = ev->x;
3696                 wc.y = ev->y;
3697                 wc.width = ev->width;
3698                 wc.height = ev->height;
3699                 wc.border_width = ev->border_width;
3700                 wc.sibling = ev->above;
3701                 wc.stack_mode = ev->detail;
3702                 XConfigureWindow(display, ev->window, ev->value_mask, &wc);
3703         } else {
3704                 DNPRINTF(SWM_D_EVENT, "configurerequest: change window: %lu\n",
3705                     ev->window);
3706                 if (win->floating) {
3707                         if (ev->value_mask & CWX)
3708                                 win->g.x = ev->x;
3709                         if (ev->value_mask & CWY)
3710                                 win->g.y = ev->y;
3711                         if (ev->value_mask & CWWidth)
3712                                 win->g.w = ev->width;
3713                         if (ev->value_mask & CWHeight)
3714                                 win->g.h = ev->height;
3715                         if (win->ws->r != NULL) {
3716                                 /* this seems to be full screen */
3717                                 if (win->g.w >= WIDTH(win->ws->r)) {
3718                                         win->g.x = 0;
3719                                         win->g.w = WIDTH(win->ws->r);
3720                                         ev->value_mask |= CWX | CWWidth;
3721                                 }
3722                                 if (win->g.h >= HEIGHT(win->ws->r)) {
3723                                         /* kill border */
3724                                         win->g.y = 0;
3725                                         win->g.h = HEIGHT(win->ws->r);
3726                                         ev->value_mask |= CWY | CWHeight;
3727                                 }
3728                         }
3729                         XMoveResizeWindow(display, win->id,
3730                             win->g.x, win->g.y, win->g.w, win->g.h);
3731                         if ((ev->value_mask & (CWX | CWY)) &&
3732                             !(ev->value_mask & (CWWidth | CWHeight)))
3733                                 config_win(win);
3734                 } else
3735                         config_win(win);
3736         }
3737 }
3738
3739 void
3740 configurenotify(XEvent *e)
3741 {
3742         struct ws_win           *win;
3743         long                    mask;
3744
3745         DNPRINTF(SWM_D_EVENT, "configurenotify: window: %lu\n",
3746             e->xconfigure.window);
3747
3748         win = find_window(e->xconfigure.window);
3749         if (win) {
3750                 XGetWMNormalHints(display, win->id, &win->sh, &mask);
3751                 adjust_font(win);
3752                 if (font_adjusted)
3753                         stack();
3754         }
3755 }
3756
3757 void
3758 destroynotify(XEvent *e)
3759 {
3760         struct ws_win           *win, *w, *wn, *winfocus = NULL;
3761         struct workspace        *ws;
3762         struct ws_win_list      *wl;
3763         XDestroyWindowEvent     *ev = &e->xdestroywindow;
3764         int                     unmanaged = 0;
3765
3766         DNPRINTF(SWM_D_EVENT, "destroynotify: window %lu\n", ev->window);
3767
3768         if ((win = find_window(ev->window)) == NULL) {
3769                 if ((win = find_unmanaged_window(ev->window)) == NULL)
3770                         return;
3771                 unmanaged = 1;
3772         }
3773
3774         /* find a window to focus */
3775         ws = win->ws;
3776         wl = &ws->winlist;
3777
3778         for (w = TAILQ_FIRST(&ws->winlist); w != TAILQ_END(&ws->winlist); w = wn) {
3779                 wn = TAILQ_NEXT(w, entry);
3780                 if (win == w)
3781                         continue; /* can't happen but oh well */
3782
3783                 if (getstate(w->id) != -1)
3784                         continue;
3785                 unmanage_window(w);
3786         }
3787         /* if we are transient give focus to parent */
3788         if (win->transient)
3789                 winfocus = find_window(win->transient);
3790         else if (ws->focus == win) {
3791                 /* if in max_stack try harder */
3792                 if (ws->cur_layout->flags & SWM_L_FOCUSPREV) {
3793                         if (win != ws->focus_prev)
3794                                 winfocus = ws->focus_prev;
3795                         else if (win != ws->focus)
3796                                 winfocus = ws->focus;
3797                 }
3798
3799                 /* fallback and normal handling */
3800                 if (winfocus == NULL) {
3801                         if (TAILQ_FIRST(wl) == win)
3802                                 winfocus = TAILQ_NEXT(win, entry);
3803                         else {
3804                                 winfocus = TAILQ_PREV(ws->focus,
3805                                     ws_win_list, entry);
3806                                 if (winfocus == NULL)
3807                                         winfocus = TAILQ_LAST(wl,
3808                                             ws_win_list);
3809                         }
3810                 }
3811         }
3812         if (unmanaged == 0)
3813                 unmanage_window(win);
3814         free_window(win);
3815
3816         ignore_enter = 1;
3817         stack();
3818         if (winfocus)
3819                 focus_win(winfocus);
3820         ignore_enter = 0;
3821 }
3822
3823 void
3824 enternotify(XEvent *e)
3825 {
3826         XCrossingEvent          *ev = &e->xcrossing;
3827         struct ws_win           *win;
3828
3829         DNPRINTF(SWM_D_EVENT, "enternotify: window: %lu\n", ev->window);
3830
3831         if (ignore_enter) {
3832                 /* eat event(r) to prevent autofocus */
3833                 ignore_enter = 0;
3834                 return;
3835         }
3836         /*
3837          * happens when a window is created or destroyed and the border
3838          * crosses the mouse pointer
3839          */
3840         if (QLength(display))
3841                 return;
3842
3843         if ((win = find_window(ev->window)) == NULL)
3844                 return;
3845
3846         focus_magic(win);
3847 }
3848
3849 void
3850 focusin(XEvent *e)
3851 {
3852         DNPRINTF(SWM_D_EVENT, "focusin: window: %lu\n", e->xfocus.window);
3853 }
3854
3855 void
3856 focusout(XEvent *e)
3857 {
3858         DNPRINTF(SWM_D_EVENT, "focusout: window: %lu\n", e->xfocus.window);
3859 }
3860
3861 void
3862 mapnotify(XEvent *e)
3863 {
3864         struct ws_win           *win;
3865         XMapEvent               *ev = &e->xmap;
3866
3867         DNPRINTF(SWM_D_EVENT, "mapnotify: window: %lu\n", ev->window);
3868
3869         win = manage_window(ev->window);
3870         if (win)
3871                 set_win_state(win, NormalState);
3872 }
3873
3874 void
3875 mappingnotify(XEvent *e)
3876 {
3877         XMappingEvent           *ev = &e->xmapping;
3878
3879         XRefreshKeyboardMapping(ev);
3880         if (ev->request == MappingKeyboard)
3881                 grabkeys();
3882 }
3883
3884 void
3885 maprequest(XEvent *e)
3886 {
3887         struct ws_win           *win;
3888         struct swm_region       *r;
3889
3890         XMapRequestEvent        *ev = &e->xmaprequest;
3891         XWindowAttributes       wa;
3892
3893         DNPRINTF(SWM_D_EVENT, "maprequest: window: %lu\n",
3894             e->xmaprequest.window);
3895
3896         if (!XGetWindowAttributes(display, ev->window, &wa))
3897                 return;
3898         if (wa.override_redirect)
3899                 return;
3900
3901         win = manage_window(e->xmaprequest.window);
3902         if (win == NULL)
3903                 return; /* can't happen */
3904
3905         ignore_enter = 1;
3906         stack();
3907         ignore_enter = 0;
3908
3909         /* make new win focused */
3910         r = root_to_region(win->wa.root);
3911         if (win->ws == r->ws)
3912                 focus_win(win);
3913 }
3914
3915 void
3916 propertynotify(XEvent *e)
3917 {
3918         struct ws_win           *win;
3919         XPropertyEvent          *ev = &e->xproperty;
3920
3921         DNPRINTF(SWM_D_EVENT, "propertynotify: window: %lu\n",
3922             ev->window);
3923
3924         if (ev->state == PropertyDelete)
3925                 return; /* ignore */
3926         win = find_window(ev->window);
3927         if (win == NULL)
3928                 return;
3929
3930         switch (ev->atom) {
3931         case XA_WM_NORMAL_HINTS:
3932 #if 0
3933                 long            mask;
3934                 XGetWMNormalHints(display, win->id, &win->sh, &mask);
3935                 fprintf(stderr, "normal hints: flag 0x%x\n", win->sh.flags);
3936                 if (win->sh.flags & PMinSize) {
3937                         win->g.w = win->sh.min_width;
3938                         win->g.h = win->sh.min_height;
3939                         fprintf(stderr, "min %d %d\n", win->g.w, win->g.h);
3940                 }
3941                 XMoveResizeWindow(display, win->id,
3942                     win->g.x, win->g.y, win->g.w, win->g.h);
3943 #endif
3944                 break;
3945         default:
3946                 break;
3947         }
3948 }
3949
3950 void
3951 unmapnotify(XEvent *e)
3952 {
3953         struct ws_win           *win, *winfocus = NULL;
3954         struct workspace        *ws;
3955
3956         DNPRINTF(SWM_D_EVENT, "unmapnotify: window: %lu\n", e->xunmap.window);
3957
3958         /* determine if we need to help unmanage this window */
3959         win = find_window(e->xunmap.window);
3960         if (win == NULL)
3961                 return;
3962
3963         /* java can not deal with this heuristic */
3964         if (win->java)
3965                 return;
3966
3967         if (getstate(e->xunmap.window) == NormalState) {
3968                 /*
3969                  * this window does not have a destroy event but but it is no
3970                  * longer visible due to the app unmapping it so unmanage it
3971                  */
3972                 ws = win->ws;
3973                 /* if we are max_stack try harder to focus on something */
3974                 if (ws->cur_layout->flags & SWM_L_FOCUSPREV) {
3975                         if (win->transient)
3976                                 winfocus = find_window(win->transient);
3977                         else if (win != ws->focus_prev)
3978                                 winfocus = ws->focus_prev;
3979                         else if (win != ws->focus)
3980                                 winfocus = ws->focus;
3981                 }
3982
3983                 /* normal and fallback if haven't found anything to focus on */
3984                 if (winfocus == NULL) {
3985                         winfocus = TAILQ_PREV(win, ws_win_list, entry);
3986                         if (TAILQ_FIRST(&ws->winlist) == win)
3987                                 winfocus = TAILQ_NEXT(win, entry);
3988                         else {
3989                                 if (ws->focus)
3990                                         winfocus = TAILQ_PREV(ws->focus,
3991                                             ws_win_list, entry);
3992                                 if (winfocus == NULL)
3993                                         winfocus = TAILQ_LAST(&ws->winlist,
3994                                             ws_win_list);
3995                         }
3996                 }
3997
3998                 /* trash window and refocus */
3999                 unmanage_window(win);
4000                 ignore_enter = 1;
4001                 stack();
4002                 focus_win(winfocus);
4003                 ignore_enter = 0;
4004         }
4005 }
4006
4007 void
4008 visibilitynotify(XEvent *e)
4009 {
4010         int                     i;
4011         struct swm_region       *r;
4012
4013         DNPRINTF(SWM_D_EVENT, "visibilitynotify: window: %lu\n",
4014             e->xvisibility.window);
4015         if (e->xvisibility.state == VisibilityUnobscured)
4016                 for (i = 0; i < ScreenCount(display); i++)
4017                         TAILQ_FOREACH(r, &screens[i].rl, entry)
4018                                 if (e->xvisibility.window == r->bar_window)
4019                                         bar_update();
4020 }
4021
4022 int
4023 xerror_start(Display *d, XErrorEvent *ee)
4024 {
4025         other_wm = 1;
4026         return (-1);
4027 }
4028
4029 int
4030 xerror(Display *d, XErrorEvent *ee)
4031 {
4032         /* fprintf(stderr, "error: %p %p\n", display, ee); */
4033         return (-1);
4034 }
4035
4036 int
4037 active_wm(void)
4038 {
4039         other_wm = 0;
4040         xerrorxlib = XSetErrorHandler(xerror_start);
4041
4042         /* this causes an error if some other window manager is running */
4043         XSelectInput(display, DefaultRootWindow(display),
4044             SubstructureRedirectMask);
4045         XSync(display, False);
4046         if (other_wm)
4047                 return (1);
4048
4049         XSetErrorHandler(xerror);
4050         XSync(display, False);
4051         return (0);
4052 }
4053
4054 void
4055 new_region(struct swm_screen *s, int x, int y, int w, int h)
4056 {
4057         struct swm_region       *r, *n;
4058         struct workspace        *ws = NULL;
4059         int                     i;
4060
4061         DNPRINTF(SWM_D_MISC, "new region: screen[%d]:%dx%d+%d+%d\n",
4062              s->idx, w, h, x, y);
4063
4064         /* remove any conflicting regions */
4065         n = TAILQ_FIRST(&s->rl);
4066         while (n) {
4067                 r = n;
4068                 n = TAILQ_NEXT(r, entry);
4069                 if (X(r) < (x + w) &&
4070                     (X(r) + WIDTH(r)) > x &&
4071                     Y(r) < (y + h) &&
4072                     (Y(r) + HEIGHT(r)) > y) {
4073                         XDestroyWindow(display, r->bar_window);
4074                         TAILQ_REMOVE(&s->rl, r, entry);
4075                         TAILQ_INSERT_TAIL(&s->orl, r, entry);
4076                 }
4077         }
4078
4079         /* search old regions for one to reuse */
4080
4081         /* size + location match */
4082         TAILQ_FOREACH(r, &s->orl, entry)
4083                 if (X(r) == x && Y(r) == y &&
4084                     HEIGHT(r) == h && WIDTH(r) == w)
4085                         break;
4086
4087         /* size match */
4088         TAILQ_FOREACH(r, &s->orl, entry)
4089                 if (HEIGHT(r) == h && WIDTH(r) == w)
4090                         break;
4091
4092         if (r != NULL) {
4093                 TAILQ_REMOVE(&s->orl, r, entry);
4094                 /* try to use old region's workspace */
4095                 if (r->ws->r == NULL)
4096                         ws = r->ws;
4097         } else
4098                 if ((r = calloc(1, sizeof(struct swm_region))) == NULL)
4099                         errx(1, "calloc: failed to allocate memory for screen");
4100
4101         /* if we don't have a workspace already, find one */
4102         if (ws == NULL) {
4103                 for (i = 0; i < SWM_WS_MAX; i++)
4104                         if (s->ws[i].r == NULL) {
4105                                 ws = &s->ws[i];
4106                                 break;
4107                         }
4108         }
4109
4110         if (ws == NULL)
4111                 errx(1, "no free workspaces\n");
4112
4113         X(r) = x;
4114         Y(r) = y;
4115         WIDTH(r) = w;
4116         HEIGHT(r) = h;
4117         r->s = s;
4118         r->ws = ws;
4119         ws->r = r;
4120         TAILQ_INSERT_TAIL(&s->rl, r, entry);
4121 }
4122
4123 void
4124 scan_xrandr(int i)
4125 {
4126 #ifdef SWM_XRR_HAS_CRTC
4127         XRRCrtcInfo             *ci;
4128         XRRScreenResources      *sr;
4129         int                     c;
4130         int                     ncrtc = 0;
4131 #endif /* SWM_XRR_HAS_CRTC */
4132         struct swm_region       *r;
4133
4134
4135         if (i >= ScreenCount(display))
4136                 errx(1, "invalid screen");
4137
4138         /* remove any old regions */
4139         while ((r = TAILQ_FIRST(&screens[i].rl)) != NULL) {
4140                 r->ws->old_r = r->ws->r = NULL;
4141                 XDestroyWindow(display, r->bar_window);
4142                 TAILQ_REMOVE(&screens[i].rl, r, entry);
4143                 TAILQ_INSERT_TAIL(&screens[i].orl, r, entry);
4144         }
4145
4146         /* map virtual screens onto physical screens */
4147 #ifdef SWM_XRR_HAS_CRTC
4148         outputs = 0;
4149         if (xrandr_support) {
4150                 sr = XRRGetScreenResources(display, screens[i].root);
4151                 if (sr == NULL)
4152                         new_region(&screens[i], 0, 0,
4153                             DisplayWidth(display, i),
4154                             DisplayHeight(display, i));
4155                 else
4156                         ncrtc = sr->ncrtc;
4157
4158                 for (c = 0, ci = NULL; c < ncrtc; c++) {
4159                         ci = XRRGetCrtcInfo(display, sr, sr->crtcs[c]);
4160                         if (ci->noutput == 0)
4161                                 continue;
4162                         outputs++;
4163
4164                         if (ci != NULL && ci->mode == None)
4165                                 new_region(&screens[i], 0, 0,
4166                                     DisplayWidth(display, i),
4167                                     DisplayHeight(display, i));
4168                         else
4169                                 new_region(&screens[i],
4170                                     ci->x, ci->y, ci->width, ci->height);
4171                 }
4172                 if (ci)
4173                         XRRFreeCrtcInfo(ci);
4174                 XRRFreeScreenResources(sr);
4175         } else
4176 #endif /* SWM_XRR_HAS_CRTC */
4177         {
4178                 new_region(&screens[i], 0, 0, DisplayWidth(display, i),
4179                     DisplayHeight(display, i));
4180         }
4181 }
4182
4183 void
4184 screenchange(XEvent *e) {
4185         XRRScreenChangeNotifyEvent      *xe = (XRRScreenChangeNotifyEvent *)e;
4186         struct swm_region               *r;
4187         int                             i;
4188
4189         DNPRINTF(SWM_D_EVENT, "screenchange: %lu\n", xe->root);
4190
4191         if (!XRRUpdateConfiguration(e))
4192                 return;
4193
4194         /* silly event doesn't include the screen index */
4195         for (i = 0; i < ScreenCount(display); i++)
4196                 if (screens[i].root == xe->root)
4197                         break;
4198         if (i >= ScreenCount(display))
4199                 errx(1, "screenchange: screen not found\n");
4200
4201         /* brute force for now, just re-enumerate the regions */
4202         scan_xrandr(i);
4203
4204         /* add bars to all regions */
4205         for (i = 0; i < ScreenCount(display); i++)
4206                 TAILQ_FOREACH(r, &screens[i].rl, entry)
4207                         bar_setup(r);
4208         stack();
4209 }
4210
4211 void
4212 setup_screens(void)
4213 {
4214         Window                  d1, d2, *wins = NULL;
4215         XWindowAttributes       wa;
4216         unsigned int            no;
4217         int                     i, j, k;
4218         int                     errorbase, major, minor;
4219         struct workspace        *ws;
4220         int                     ws_idx_atom;
4221         long                    state, manage;
4222
4223         if ((screens = calloc(ScreenCount(display),
4224              sizeof(struct swm_screen))) == NULL)
4225                 errx(1, "calloc: screens");
4226
4227         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
4228
4229         /* initial Xrandr setup */
4230         xrandr_support = XRRQueryExtension(display,
4231             &xrandr_eventbase, &errorbase);
4232         if (xrandr_support)
4233                 if (XRRQueryVersion(display, &major, &minor) && major < 1)
4234                         xrandr_support = 0;
4235
4236         /* map physical screens */
4237         for (i = 0; i < ScreenCount(display); i++) {
4238                 DNPRINTF(SWM_D_WS, "setup_screens: init screen %d\n", i);
4239                 screens[i].idx = i;
4240                 TAILQ_INIT(&screens[i].rl);
4241                 TAILQ_INIT(&screens[i].orl);
4242                 screens[i].root = RootWindow(display, i);
4243
4244                 /* set default colors */
4245                 setscreencolor("red", i + 1, SWM_S_COLOR_FOCUS);
4246                 setscreencolor("rgb:88/88/88", i + 1, SWM_S_COLOR_UNFOCUS);
4247                 setscreencolor("rgb:00/80/80", i + 1, SWM_S_COLOR_BAR_BORDER);
4248                 setscreencolor("black", i + 1, SWM_S_COLOR_BAR);
4249                 setscreencolor("rgb:a0/a0/a0", i + 1, SWM_S_COLOR_BAR_FONT);
4250
4251                 /* init all workspaces */
4252                 /* XXX these should be dynamically allocated too */
4253                 for (j = 0; j < SWM_WS_MAX; j++) {
4254                         ws = &screens[i].ws[j];
4255                         ws->idx = j;
4256                         ws->focus = NULL;
4257                         ws->r = NULL;
4258                         ws->old_r = NULL;
4259                         TAILQ_INIT(&ws->winlist);
4260                         TAILQ_INIT(&ws->unmanagedlist);
4261
4262                         for (k = 0; layouts[k].l_stack != NULL; k++)
4263                                 if (layouts[k].l_config != NULL)
4264                                         layouts[k].l_config(ws,
4265                                             SWM_ARG_ID_STACKINIT);
4266                         ws->cur_layout = &layouts[0];
4267                 }
4268                 /* grab existing windows (before we build the bars)*/
4269                 if (!XQueryTree(display, screens[i].root, &d1, &d2, &wins, &no))
4270                         continue;
4271
4272                 scan_xrandr(i);
4273
4274                 if (xrandr_support)
4275                         XRRSelectInput(display, screens[i].root,
4276                             RRScreenChangeNotifyMask);
4277
4278                 /* attach windows to a region */
4279                 /* normal windows */
4280                 for (j = 0; j < no; j++) {
4281                         if (!XGetWindowAttributes(display, wins[j], &wa) ||
4282                             wa.override_redirect ||
4283                             XGetTransientForHint(display, wins[j], &d1))
4284                                 continue;
4285
4286                         state = getstate(wins[j]);
4287                         manage = state == IconicState;
4288                         if (wa.map_state == IsViewable || manage)
4289                                 manage_window(wins[j]);
4290                 }
4291                 /* transient windows */
4292                 for (j = 0; j < no; j++) {
4293                         if (!XGetWindowAttributes(display, wins[j], &wa) ||
4294                             wa.override_redirect)
4295                                 continue;
4296
4297                         state = getstate(wins[j]);
4298                         manage = state == IconicState;
4299                         if (XGetTransientForHint(display, wins[j], &d1) &&
4300                             manage)
4301                                 manage_window(wins[j]);
4302                 }
4303                 if (wins) {
4304                         XFree(wins);
4305                         wins = NULL;
4306                 }
4307         }
4308 }
4309
4310 void
4311 setup_globals(void)
4312 {
4313         if ((bar_fonts[0] = strdup("-*-terminus-medium-*-*-*-*-*-*-*-*-*-*-*"))
4314             == NULL)
4315                 err(1, "setup_globals: strdup");
4316         if ((bar_fonts[1] = strdup("-*-times-medium-r-*-*-*-*-*-*-*-*-*-*"))
4317             == NULL)
4318                 err(1, "setup_globals: strdup");
4319         if ((bar_fonts[2] = strdup("-misc-fixed-medium-r-*-*-*-*-*-*-*-*-*-*"))
4320             == NULL)
4321                 err(1, "setup_globals: strdup");
4322         if ((spawn_term[0] = strdup("xterm")) == NULL)
4323                 err(1, "setup_globals: strdup");
4324 }
4325
4326 void
4327 workaround(void)
4328 {
4329         int                     i;
4330         Atom                    netwmcheck, netwmname, utf8_string;
4331         Window                  root;
4332
4333         /* work around sun jdk bugs, code from wmname */
4334         netwmcheck = XInternAtom(display, "_NET_SUPPORTING_WM_CHECK", False);
4335         netwmname = XInternAtom(display, "_NET_WM_NAME", False);
4336         utf8_string = XInternAtom(display, "UTF8_STRING", False);
4337         for (i = 0; i < ScreenCount(display); i++) {
4338                 root = screens[i].root;
4339                 XChangeProperty(display, root, netwmcheck, XA_WINDOW, 32,
4340                     PropModeReplace, (unsigned char *)&root, 1);
4341                 XChangeProperty(display, root, netwmname, utf8_string, 8,
4342                     PropModeReplace, "LG3D", strlen("LG3D"));
4343         }
4344 }
4345
4346 int
4347 main(int argc, char *argv[])
4348 {
4349         struct passwd           *pwd;
4350         struct swm_region       *r, *rr;
4351         struct ws_win           *winfocus = NULL;
4352         struct timeval          tv;
4353         char                    conf[PATH_MAX], *cfile = NULL;
4354         struct stat             sb;
4355         XEvent                  e;
4356         int                     xfd, i;
4357         fd_set                  rd;
4358
4359         start_argv = argv;
4360         fprintf(stderr, "Welcome to scrotwm V%s cvs tag: %s\n",
4361             SWM_VERSION, cvstag);
4362         if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
4363                 warnx("no locale support");
4364
4365         if (!(display = XOpenDisplay(0)))
4366                 errx(1, "can not open display");
4367
4368         if (active_wm())
4369                 errx(1, "other wm running");
4370
4371         /* handle some signale */
4372         installsignal(SIGINT, "INT");
4373         installsignal(SIGHUP, "HUP");
4374         installsignal(SIGQUIT, "QUIT");
4375         installsignal(SIGTERM, "TERM");
4376         installsignal(SIGCHLD, "CHLD");
4377
4378         astate = XInternAtom(display, "WM_STATE", False);
4379         aprot = XInternAtom(display, "WM_PROTOCOLS", False);
4380         adelete = XInternAtom(display, "WM_DELETE_WINDOW", False);
4381         takefocus = XInternAtom(display, "WM_TAKE_FOCUS", False);
4382
4383         /* look for local and global conf file */
4384         pwd = getpwuid(getuid());
4385         if (pwd == NULL)
4386                 errx(1, "invalid user %d", getuid());
4387
4388         setup_screens();
4389         setup_globals();
4390         setup_keys();
4391         setup_quirks();
4392         setup_spawn();
4393
4394         snprintf(conf, sizeof conf, "%s/.%s", pwd->pw_dir, SWM_CONF_FILE);
4395         if (stat(conf, &sb) != -1) {
4396                 if (S_ISREG(sb.st_mode))
4397                         cfile = conf;
4398         } else {
4399                 /* try global conf file */
4400                 snprintf(conf, sizeof conf, "/etc/%s", SWM_CONF_FILE);
4401                 if (!stat(conf, &sb))
4402                         if (S_ISREG(sb.st_mode))
4403                                 cfile = conf;
4404         }
4405         if (cfile)
4406                 conf_load(cfile);
4407
4408         /* setup all bars */
4409         for (i = 0; i < ScreenCount(display); i++)
4410                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
4411                         if (winfocus == NULL)
4412                                 winfocus = TAILQ_FIRST(&r->ws->winlist);
4413                         bar_setup(r);
4414                 }
4415
4416         /* set some values to work around bad programs */
4417         workaround();
4418
4419         grabkeys();
4420         stack();
4421
4422         xfd = ConnectionNumber(display);
4423         while (running) {
4424                 while (XPending(display)) {
4425                         XNextEvent(display, &e);
4426                         if (running == 0)
4427                                 goto done;
4428                         if (e.type < LASTEvent) {
4429                                 dumpevent(&e);
4430                                 if (handler[e.type])
4431                                         handler[e.type](&e);
4432                                 else
4433                                         DNPRINTF(SWM_D_EVENT,
4434                                             "win: %lu unknown event: %d\n",
4435                                             e.xany.window, e.type);
4436                         } else {
4437                                 switch (e.type - xrandr_eventbase) {
4438                                 case RRScreenChangeNotify:
4439                                         screenchange(&e);
4440                                         break;
4441                                 default:
4442                                         DNPRINTF(SWM_D_EVENT,
4443                                             "win: %lu unknown xrandr event: "
4444                                             "%d\n", e.xany.window, e.type);
4445                                         break;
4446                                 }
4447                         }
4448                 }
4449
4450                 /* if we are being restarted go focus on first window */
4451                 if (winfocus) {
4452                         rr = TAILQ_FIRST(&screens[0].rl);
4453                         /* move pointer to first screen if multi screen */
4454                         if (ScreenCount(display) > 1 || outputs > 1)
4455                                 XWarpPointer(display, None, rr->s[0].root,
4456                                     0, 0, 0, 0, rr->g.x,
4457                                     rr->g.y + bar_enabled ? bar_height : 0);
4458
4459                         focus_win(winfocus);
4460                         winfocus = NULL;
4461                         continue;
4462                 }
4463
4464                 FD_ZERO(&rd);
4465                 FD_SET(xfd, &rd);
4466                 tv.tv_sec = 1;
4467                 tv.tv_usec = 0;
4468                 if (select(xfd + 1, &rd, NULL, NULL, &tv) == -1)
4469                         if (errno != EINTR)
4470                                 DNPRINTF(SWM_D_MISC, "select failed");
4471                 if (running == 0)
4472                         goto done;
4473                 if (bar_alarm) {
4474                         bar_alarm = 0;
4475                         bar_update();
4476                 }
4477         }
4478 done:
4479         bar_extra_stop();
4480
4481         XCloseDisplay(display);
4482
4483         return (0);
4484 }