scrotwm.c

   1 /* $scrotwm$ */
   2 /*
   3  * Copyright (c) 2009 Marco Peereboom <marco@peereboom.us>
   4  * Copyright (c) 2009 Ryan McBride <mcbride@countersiege.com>
   5  * Copyright (c) 2009 Darrin Chandler <dwchandler@stilyagin.com>
   6  * Copyright (c) 2009 Pierre-Yves Ritschard <pyr@spootnik.org>
   7  *
   8  * Permission to use, copy, modify, and distribute this software for any
   9  * purpose with or without fee is hereby granted, provided that the above
  10  * copyright notice and this permission notice appear in all copies.
  11  *
  12  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  13  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  14  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  15  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  16  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  17  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  18  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  19  */
  20 /*
  21  * Much code and ideas taken from dwm under the following license:
  22  * MIT/X Consortium License
  23  *
  24  * 2006-2008 Anselm R Garbe <garbeam at gmail dot com>
  25  * 2006-2007 Sander van Dijk <a dot h dot vandijk at gmail dot com>
  26  * 2006-2007 Jukka Salmi <jukka at salmi dot ch>
  27  * 2007 Premysl Hruby <dfenze at gmail dot com>
  28  * 2007 Szabolcs Nagy <nszabolcs at gmail dot com>
  29  * 2007 Christof Musik <christof at sendfax dot de>
  30  * 2007-2008 Enno Gottox Boland <gottox at s01 dot de>
  31  * 2007-2008 Peter Hartlich <sgkkr at hartlich dot com>
  32  * 2008 Martin Hurton <martin dot hurton at gmail dot com>
  33  *
  34  * Permission is hereby granted, free of charge, to any person obtaining a
  35  * copy of this software and associated documentation files (the "Software"),
  36  * to deal in the Software without restriction, including without limitation
  37  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  38  * and/or sell copies of the Software, and to permit persons to whom the
  39  * Software is furnished to do so, subject to the following conditions:
  40  *
  41  * The above copyright notice and this permission notice shall be included in
  42  * all copies or substantial portions of the Software.
  43  *
  44  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  45  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  46  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  47  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  48  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  49  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  50  * DEALINGS IN THE SOFTWARE.
  51  */
  52
  53 static const char       *cvstag = "$scrotwm$";
  54
  55 #define SWM_VERSION     "0.9.13"
  56
  57 #include <stdio.h>
  58 #include <stdlib.h>
  59 #include <err.h>
  60 #include <errno.h>
  61 #include <fcntl.h>
  62 #include <locale.h>
  63 #include <unistd.h>
  64 #include <time.h>
  65 #include <signal.h>
  66 #include <string.h>
  67 #include <util.h>
  68 #include <pwd.h>
  69 #include <ctype.h>
  70
  71 #include <sys/types.h>
  72 #include <sys/time.h>
  73 #include <sys/stat.h>
  74 #include <sys/wait.h>
  75 #include <sys/queue.h>
  76 #include <sys/param.h>
  77 #include <sys/select.h>
  78
  79 #include <X11/cursorfont.h>
  80 #include <X11/keysym.h>
  81 #include <X11/Xatom.h>
  82 #include <X11/Xlib.h>
  83 #include <X11/Xproto.h>
  84 #include <X11/Xutil.h>
  85 #include <X11/extensions/Xrandr.h>
  86
  87 #if RANDR_MAJOR < 1
  88 #  error XRandR versions less than 1.0 are not supported
  89 #endif
  90
  91 #if RANDR_MAJOR >= 1
  92 #if RANDR_MINOR >= 2
  93 #define SWM_XRR_HAS_CRTC
  94 #endif
  95 #endif
  96
  97 /* #define SWM_DEBUG */
  98 #ifdef SWM_DEBUG
  99 #define DPRINTF(x...)           do { if (swm_debug) fprintf(stderr, x); } while (0)
 100 #define DNPRINTF(n,x...)        do { if (swm_debug & n) fprintf(stderr, x); } while (0)
 101 #define SWM_D_MISC              0x0001
 102 #define SWM_D_EVENT             0x0002
 103 #define SWM_D_WS                0x0004
 104 #define SWM_D_FOCUS             0x0008
 105 #define SWM_D_MOVE              0x0010
 106 #define SWM_D_STACK             0x0020
 107 #define SWM_D_MOUSE             0x0040
 108 #define SWM_D_PROP              0x0080
 109 #define SWM_D_CLASS             0x0100
 110 #define SWM_D_KEY               0x0200
 111 #define SWM_D_QUIRK             0x0400
 112 #define SWM_D_SPAWN             0x0800
 113 #define SWM_D_EVENTQ            0x1000
 114 #define SWM_D_CONF              0x2000
 115
 116 u_int32_t               swm_debug = 0
 117                             | SWM_D_MISC
 118                             | SWM_D_EVENT
 119                             | SWM_D_WS
 120                             | SWM_D_FOCUS
 121                             | SWM_D_MOVE
 122                             | SWM_D_STACK
 123                             | SWM_D_MOUSE
 124                             | SWM_D_PROP
 125                             | SWM_D_CLASS
 126                             | SWM_D_KEY
 127                             | SWM_D_QUIRK
 128                             | SWM_D_SPAWN
 129                             | SWM_D_EVENTQ
 130                             | SWM_D_CONF
 131                             ;
 132 #else
 133 #define DPRINTF(x...)
 134 #define DNPRINTF(n,x...)
 135 #endif
 136
 137 #define LENGTH(x)               (sizeof x / sizeof x[0])
 138 #define MODKEY                  Mod1Mask
 139 #define CLEANMASK(mask)         (mask & ~(numlockmask | LockMask))
 140 #define BUTTONMASK              (ButtonPressMask|ButtonReleaseMask)
 141 #define MOUSEMASK               (BUTTONMASK|PointerMotionMask)
 142 #define SWM_PROPLEN             (16)
 143 #define SWM_FUNCNAME_LEN        (32)
 144 #define SWM_KEYS_LEN            (255)
 145 #define SWM_QUIRK_LEN           (64)
 146 #define X(r)                    (r)->g.x
 147 #define Y(r)                    (r)->g.y
 148 #define WIDTH(r)                (r)->g.w
 149 #define HEIGHT(r)               (r)->g.h
 150 #define SWM_MAX_FONT_STEPS      (3)
 151
 152 #ifndef SWM_LIB
 153 #define SWM_LIB                 "/usr/local/lib/libswmhack.so"
 154 #endif
 155
 156 char                    **start_argv;
 157 Atom                    astate;
 158 Atom                    aprot;
 159 Atom                    adelete;
 160 Atom                    takefocus;
 161 volatile sig_atomic_t   running = 1;
 162 int                     outputs = 0;
 163 int                     (*xerrorxlib)(Display *, XErrorEvent *);
 164 int                     other_wm;
 165 int                     ss_enabled = 0;
 166 int                     xrandr_support;
 167 int                     xrandr_eventbase;
 168 int                     ignore_enter = 0;
 169 unsigned int            numlockmask = 0;
 170 Display                 *display;
 171
 172 int                     cycle_empty = 0;
 173 int                     cycle_visible = 0;
 174 int                     term_width = 0;
 175 int                     font_adjusted = 0;
 176 unsigned int            mod_key = MODKEY;
 177
 178 /* dialog windows */
 179 double                  dialog_ratio = .6;
 180 /* status bar */
 181 #define SWM_BAR_MAX     (256)
 182 char                    *bar_argv[] = { NULL, NULL };
 183 int                     bar_pipe[2];
 184 char                    bar_ext[SWM_BAR_MAX];
 185 char                    bar_vertext[SWM_BAR_MAX];
 186 int                     bar_version = 0;
 187 sig_atomic_t            bar_alarm = 0;
 188 int                     bar_delay = 30;
 189 int                     bar_enabled = 1;
 190 int                     bar_extra = 1;
 191 int                     bar_extra_running = 0;
 192 int                     bar_verbose = 1;
 193 int                     bar_height = 0;
 194 int                     stack_enabled = 1;
 195 int                     clock_enabled = 1;
 196 int                     title_name_enabled = 0;
 197 int                     title_class_enabled = 0;
 198 pid_t                   bar_pid;
 199 GC                      bar_gc;
 200 XGCValues               bar_gcv;
 201 int                     bar_fidx = 0;
 202 XFontStruct             *bar_fs;
 203 char                    *bar_fonts[] = { NULL, NULL, NULL, NULL };/* XXX Make fully dynamic */
 204 char                    *spawn_term[] = { NULL, NULL };         /* XXX Make fully dynamic */
 205
 206 #define SWM_MENU_FN     (2)
 207 #define SWM_MENU_NB     (4)
 208 #define SWM_MENU_NF     (6)
 209 #define SWM_MENU_SB     (8)
 210 #define SWM_MENU_SF     (10)
 211
 212 /* layout manager data */
 213 struct swm_geometry {
 214         int                     x;
 215         int                     y;
 216         int                     w;
 217         int                     h;
 218 };
 219
 220 struct swm_screen;
 221 struct workspace;
 222
 223 /* virtual "screens" */
 224 struct swm_region {
 225         TAILQ_ENTRY(swm_region) entry;
 226         struct swm_geometry     g;
 227         struct workspace        *ws;    /* current workspace on this region */
 228         struct swm_screen       *s;     /* screen idx */
 229         Window                  bar_window;
 230 };
 231 TAILQ_HEAD(swm_region_list, swm_region);
 232
 233 struct ws_win {
 234         TAILQ_ENTRY(ws_win)     entry;
 235         Window                  id;
 236         Window                  transient;
 237         struct ws_win           *child_trans;   /* transient child window */
 238         struct swm_geometry     g;
 239         int                     floating;
 240         int                     manual;
 241         int                     font_size_boundary[SWM_MAX_FONT_STEPS];
 242         int                     font_steps;
 243         int                     last_inc;
 244         int                     can_delete;
 245         int                     take_focus;
 246         int                     java;
 247         unsigned long           quirks;
 248         struct workspace        *ws;    /* always valid */
 249         struct swm_screen       *s;     /* always valid, never changes */
 250         XWindowAttributes       wa;
 251         XSizeHints              sh;
 252         XClassHint              ch;
 253 };
 254 TAILQ_HEAD(ws_win_list, ws_win);
 255
 256 /* user/key callable function IDs */
 257 enum keyfuncid {
 258         kf_cycle_layout,
 259         kf_stack_reset,
 260         kf_master_shrink,
 261         kf_master_grow,
 262         kf_master_add,
 263         kf_master_del,
 264         kf_stack_inc,
 265         kf_stack_dec,
 266         kf_swap_main,
 267         kf_focus_next,
 268         kf_focus_prev,
 269         kf_swap_next,
 270         kf_swap_prev,
 271         kf_spawn_term,
 272         kf_spawn_menu,
 273         kf_quit,
 274         kf_restart,
 275         kf_focus_main,
 276         kf_ws_1,
 277         kf_ws_2,
 278         kf_ws_3,
 279         kf_ws_4,
 280         kf_ws_5,
 281         kf_ws_6,
 282         kf_ws_7,
 283         kf_ws_8,
 284         kf_ws_9,
 285         kf_ws_10,
 286         kf_ws_next,
 287         kf_ws_prev,
 288         kf_screen_next,
 289         kf_screen_prev,
 290         kf_mvws_1,
 291         kf_mvws_2,
 292         kf_mvws_3,
 293         kf_mvws_4,
 294         kf_mvws_5,
 295         kf_mvws_6,
 296         kf_mvws_7,
 297         kf_mvws_8,
 298         kf_mvws_9,
 299         kf_mvws_10,
 300         kf_bar_toggle,
 301         kf_wind_kill,
 302         kf_wind_del,
 303         kf_screenshot_all,
 304         kf_screenshot_wind,
 305         kf_float_toggle,
 306         kf_version,
 307         kf_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                 fprintf(stderr, "r && r->s failed\n");
1355                 abort();
1356         }
1357         if (wsid < 0 || wsid > SWM_WS_MAX) {
1358                 fprintf(stderr, "illegal wsid\n");
1359                 abort();
1360         }
1361
1362         this_r = r;
1363         old_ws = this_r->ws;
1364         new_ws = &this_r->s->ws[wsid];
1365
1366         DNPRINTF(SWM_D_WS, "switchws screen[%d]:%dx%d+%d+%d: "
1367             "%d -> %d\n", r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r),
1368             old_ws->idx, wsid);
1369
1370         if (new_ws == NULL || old_ws == NULL) {
1371                 fprintf(stderr, "new_ws = %p old_ws = %p\n", new_ws, old_ws);
1372                 abort();
1373         }
1374
1375         if (new_ws == old_ws)
1376                 return;
1377
1378         /* get focus window */
1379         if (new_ws->focus)
1380                 winfocus = new_ws->focus;
1381         else if (new_ws->focus_prev)
1382                 winfocus = new_ws->focus_prev;
1383         else
1384                 winfocus = TAILQ_FIRST(&new_ws->winlist);
1385
1386         other_r = new_ws->r;
1387         if (other_r == NULL) {
1388                 /* if the other workspace is hidden, switch windows */
1389                 if (old_ws->r != NULL)
1390                         old_ws->old_r = old_ws->r;
1391                 old_ws->r = NULL;
1392
1393                 TAILQ_FOREACH(win, &old_ws->winlist, entry)
1394                         unmap_window(win);
1395         } else {
1396                 other_r->ws = old_ws;
1397                 old_ws->r = other_r;
1398         }
1399         this_r->ws = new_ws;
1400         new_ws->r = this_r;
1401
1402         ignore_enter = 1;
1403         stack();
1404         if (winfocus) {
1405                 /* make sure we see the parent window */
1406                 if (winfocus->transient) {
1407                         parent = find_window(winfocus->transient);
1408                         if (parent)
1409                                 focus_win(parent);
1410                 }
1411
1412                 focus_win(winfocus);
1413         }
1414         ignore_enter = 0;
1415         bar_update();
1416 }
1417
1418 void
1419 cyclews(struct swm_region *r, union arg *args)
1420 {
1421         union                   arg a;
1422         struct swm_screen       *s = r->s;
1423
1424         DNPRINTF(SWM_D_WS, "cyclews id %d "
1425             "in screen[%d]:%dx%d+%d+%d ws %d\n", args->id,
1426             r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
1427
1428         a.id = r->ws->idx;
1429         do {
1430                 switch (args->id) {
1431                 case SWM_ARG_ID_CYCLEWS_UP:
1432                         if (a.id < SWM_WS_MAX - 1)
1433                                 a.id++;
1434                         else
1435                                 a.id = 0;
1436                         break;
1437                 case SWM_ARG_ID_CYCLEWS_DOWN:
1438                         if (a.id > 0)
1439                                 a.id--;
1440                         else
1441                                 a.id = SWM_WS_MAX - 1;
1442                         break;
1443                 default:
1444                         return;
1445                 };
1446
1447                 if (cycle_empty == 0 && TAILQ_EMPTY(&s->ws[a.id].winlist))
1448                         continue;
1449                 if (cycle_visible == 0 && s->ws[a.id].r != NULL)
1450                         continue;
1451
1452                 switchws(r, &a);
1453         } while (a.id != r->ws->idx);
1454 }
1455
1456 void
1457 cyclescr(struct swm_region *r, union arg *args)
1458 {
1459         struct swm_region       *rr = NULL;
1460         struct workspace        *ws = NULL;
1461         struct ws_win           *winfocus = NULL;
1462         int                     i, x, y;
1463
1464         /* do nothing if we don't have more than one screen */
1465         if (!(ScreenCount(display) > 1 || outputs > 1))
1466                 return;
1467
1468         i = r->s->idx;
1469         switch (args->id) {
1470         case SWM_ARG_ID_CYCLESC_UP:
1471                 rr = TAILQ_NEXT(r, entry);
1472                 if (rr == NULL)
1473                         rr = TAILQ_FIRST(&screens[i].rl);
1474                 break;
1475         case SWM_ARG_ID_CYCLESC_DOWN:
1476                 rr = TAILQ_PREV(r, swm_region_list, entry);
1477                 if (rr == NULL)
1478                         rr = TAILQ_LAST(&screens[i].rl, swm_region_list);
1479                 break;
1480         default:
1481                 return;
1482         };
1483         if (rr == NULL)
1484                 return;
1485
1486         ws = rr->ws;
1487         winfocus = ws->focus;
1488         if (winfocus == NULL)
1489                 winfocus = ws->focus_prev;
1490         if (winfocus) {
1491                 /* use window coordinates */
1492                 x = winfocus->g.x + 1;
1493                 y = winfocus->g.y + 1;
1494         } else {
1495                 /* use region coordinates */
1496                 x = rr->g.x + 1;
1497                 y = rr->g.y + 1 + bar_enabled ? bar_height : 0;
1498         }
1499
1500         unfocus_all();
1501         XSetInputFocus(display, PointerRoot, RevertToPointerRoot, CurrentTime);
1502         XWarpPointer(display, None, rr->s[i].root, 0, 0, 0, 0, x, y);
1503
1504         focus_win(winfocus);
1505 }
1506
1507 void
1508 swapwin(struct swm_region *r, union arg *args)
1509 {
1510         struct ws_win           *target, *source;
1511         struct ws_win           *cur_focus;
1512         struct ws_win_list      *wl;
1513
1514
1515         DNPRINTF(SWM_D_WS, "swapwin id %d "
1516             "in screen %d region %dx%d+%d+%d ws %d\n", args->id,
1517             r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
1518
1519         cur_focus = r->ws->focus;
1520         if (cur_focus == NULL)
1521                 return;
1522
1523         source = cur_focus;
1524         wl = &source->ws->winlist;
1525
1526         switch (args->id) {
1527         case SWM_ARG_ID_SWAPPREV:
1528                 target = TAILQ_PREV(source, ws_win_list, entry);
1529                 TAILQ_REMOVE(wl, cur_focus, entry);
1530                 if (target == NULL)
1531                         TAILQ_INSERT_TAIL(wl, source, entry);
1532                 else
1533                         TAILQ_INSERT_BEFORE(target, source, entry);
1534                 break;
1535         case SWM_ARG_ID_SWAPNEXT:
1536                 target = TAILQ_NEXT(source, entry);
1537                 TAILQ_REMOVE(wl, source, entry);
1538                 if (target == NULL)
1539                         TAILQ_INSERT_HEAD(wl, source, entry);
1540                 else
1541                         TAILQ_INSERT_AFTER(wl, target, source, entry);
1542                 break;
1543         case SWM_ARG_ID_SWAPMAIN:
1544                 target = TAILQ_FIRST(wl);
1545                 if (target == source) {
1546                         if (source->ws->focus_prev != NULL &&
1547                             source->ws->focus_prev != target)
1548
1549                                 source = source->ws->focus_prev;
1550                         else
1551                                 return;
1552                 }
1553                 if (target == NULL || source == NULL)
1554                         return;
1555                 source->ws->focus_prev = target;
1556                 TAILQ_REMOVE(wl, target, entry);
1557                 TAILQ_INSERT_BEFORE(source, target, entry);
1558                 TAILQ_REMOVE(wl, source, entry);
1559                 TAILQ_INSERT_HEAD(wl, source, entry);
1560                 break;
1561         default:
1562                 DNPRINTF(SWM_D_MOVE, "invalid id: %d\n", args->id);
1563                 return;
1564         }
1565
1566         ignore_enter = 1;
1567         stack();
1568 }
1569
1570 void
1571 focus(struct swm_region *r, union arg *args)
1572 {
1573         struct ws_win           *winfocus, *winlostfocus;
1574         struct ws_win_list      *wl;
1575         struct ws_win           *cur_focus;
1576
1577         DNPRINTF(SWM_D_FOCUS, "focus: id %d\n", args->id);
1578
1579         cur_focus = r->ws->focus;
1580         if (cur_focus == NULL)
1581                 return;
1582
1583         wl = &cur_focus->ws->winlist;
1584
1585         winlostfocus = cur_focus;
1586
1587         switch (args->id) {
1588         case SWM_ARG_ID_FOCUSPREV:
1589                 winfocus = TAILQ_PREV(cur_focus, ws_win_list, entry);
1590                 if (winfocus == NULL)
1591                         winfocus = TAILQ_LAST(wl, ws_win_list);
1592                 break;
1593
1594         case SWM_ARG_ID_FOCUSNEXT:
1595                 winfocus = TAILQ_NEXT(cur_focus, entry);
1596                 if (winfocus == NULL)
1597                         winfocus = TAILQ_FIRST(wl);
1598                 break;
1599
1600         case SWM_ARG_ID_FOCUSMAIN:
1601                 winfocus = TAILQ_FIRST(wl);
1602                 if (winfocus == cur_focus)
1603                         winfocus = cur_focus->ws->focus_prev;
1604                 if (winfocus == NULL)
1605                         return;
1606                 break;
1607
1608         default:
1609                 return;
1610         }
1611
1612         if (winfocus == winlostfocus || winfocus == NULL)
1613                 return;
1614
1615         focus_win(winfocus);
1616 }
1617
1618 void
1619 cycle_layout(struct swm_region *r, union arg *args)
1620 {
1621         struct workspace        *ws = r->ws;
1622         struct ws_win           *winfocus, *parent = NULL;
1623
1624         DNPRINTF(SWM_D_EVENT, "cycle_layout: workspace: %d\n", ws->idx);
1625
1626         winfocus = ws->focus;
1627
1628         ws->cur_layout++;
1629         if (ws->cur_layout->l_stack == NULL)
1630                 ws->cur_layout = &layouts[0];
1631
1632         ignore_enter = 1;
1633         stack();
1634         /* make sure we see the parent window */
1635         if (winfocus) {
1636                 if (winfocus->transient)
1637                         parent = find_window(winfocus->transient);
1638                 if (parent)
1639                         focus_win(parent);
1640                 focus_win(winfocus);
1641         }
1642         ignore_enter = 0;
1643 }
1644
1645 void
1646 stack_config(struct swm_region *r, union arg *args)
1647 {
1648         struct workspace        *ws = r->ws;
1649
1650         DNPRINTF(SWM_D_STACK, "stack_config for workspace %d (id %d\n",
1651             args->id, ws->idx);
1652
1653         if (ws->cur_layout->l_config != NULL)
1654                 ws->cur_layout->l_config(ws, args->id);
1655
1656         if (args->id != SWM_ARG_ID_STACKINIT);
1657                 stack();
1658 }
1659
1660 void
1661 stack(void) {
1662         struct swm_geometry     g;
1663         struct swm_region       *r;
1664         int                     i, j;
1665
1666         DNPRINTF(SWM_D_STACK, "stack\n");
1667
1668         for (i = 0; i < ScreenCount(display); i++) {
1669                 j = 0;
1670                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
1671                         DNPRINTF(SWM_D_STACK, "stacking workspace %d "
1672                             "(screen %d, region %d)\n", r->ws->idx, i, j++);
1673
1674                         /* start with screen geometry, adjust for bar */
1675                         if (r == NULL) {
1676                                 fprintf(stderr, "illegal r\n");
1677                                 abort();
1678                         }
1679                         g = r->g;
1680                         g.w -= 2;
1681                         g.h -= 2;
1682                         if (bar_enabled) {
1683                                 g.y += bar_height;
1684                                 g.h -= bar_height;
1685                         }
1686                         if (r->ws == NULL) {
1687                                 fprintf(stderr, "illegal ws\n");
1688                                 abort();
1689                         }
1690                         if (r->ws->cur_layout == NULL) {
1691                                 fprintf(stderr, "illegal cur_layout\n");
1692                                 abort();
1693                         }
1694                         if (r->ws->cur_layout->l_stack == NULL) {
1695                                 fprintf(stderr, "illegal l_stack\n");
1696                                 abort();
1697                         }
1698                         r->ws->cur_layout->l_stack(r->ws, &g);
1699                 }
1700         }
1701         if (font_adjusted)
1702                 font_adjusted--;
1703 }
1704
1705 void
1706 stack_floater(struct ws_win *win, struct swm_region *r)
1707 {
1708         unsigned int            mask;
1709         XWindowChanges          wc;
1710
1711         if (win == NULL)
1712                 return;
1713
1714         bzero(&wc, sizeof wc);
1715         mask = CWX | CWY | CWBorderWidth | CWWidth | CWHeight;
1716         if ((win->quirks & SWM_Q_FULLSCREEN) && (win->g.w == WIDTH(r)) &&
1717             (win->g.h == HEIGHT(r)))
1718                 wc.border_width = 0;
1719         else
1720                 wc.border_width = 1;
1721         if (win->transient && (win->quirks & SWM_Q_TRANSSZ)) {
1722                 win->g.w = (double)WIDTH(r) * dialog_ratio;
1723                 win->g.h = (double)HEIGHT(r) * dialog_ratio;
1724         }
1725         wc.width = win->g.w;
1726         wc.height = win->g.h;
1727         if (win->manual) {
1728                 wc.x = win->g.x;
1729                 wc.y = win->g.y;
1730         } else {
1731                 wc.x = (WIDTH(r) - win->g.w) / 2;
1732                 wc.y = (HEIGHT(r) - win->g.h) / 2;
1733         }
1734
1735         /* adjust for region */
1736         wc.x += r->g.x;
1737         wc.y += r->g.y;
1738
1739         DNPRINTF(SWM_D_STACK, "stack_floater: win %lu x %d y %d w %d h %d\n",
1740             win->id, wc.x, wc.y, wc.width, wc.height);
1741
1742         XConfigureWindow(display, win->id, mask, &wc);
1743 }
1744
1745 /*
1746  * Send keystrokes to terminal to decrease/increase the font size as the
1747  * window size changes.
1748  */
1749 void
1750 adjust_font(struct ws_win *win)
1751 {
1752         if (!(win->quirks & SWM_Q_XTERM_FONTADJ) ||
1753             win->floating || win->transient)
1754                 return;
1755
1756         if (win->sh.width_inc && win->last_inc != win->sh.width_inc &&
1757             win->g.w / win->sh.width_inc < term_width &&
1758             win->font_steps < SWM_MAX_FONT_STEPS) {
1759                 win->font_size_boundary[win->font_steps] =
1760                     (win->sh.width_inc * term_width) + win->sh.base_width;
1761                 win->font_steps++;
1762                 font_adjusted++;
1763                 win->last_inc = win->sh.width_inc;
1764                 fake_keypress(win, XK_KP_Subtract, ShiftMask);
1765         } else if (win->font_steps && win->last_inc != win->sh.width_inc &&
1766             win->g.w > win->font_size_boundary[win->font_steps - 1]) {
1767                 win->font_steps--;
1768                 font_adjusted++;
1769                 win->last_inc = win->sh.width_inc;
1770                 fake_keypress(win, XK_KP_Add, ShiftMask);
1771         }
1772 }
1773
1774 #define SWAPXY(g)       do {                            \
1775         int tmp;                                        \
1776         tmp = (g)->y; (g)->y = (g)->x; (g)->x = tmp;    \
1777         tmp = (g)->h; (g)->h = (g)->w; (g)->w = tmp;    \
1778 } while (0)
1779 void
1780 stack_master(struct workspace *ws, struct swm_geometry *g, int rot, int flip)
1781 {
1782         XWindowChanges          wc;
1783         struct swm_geometry     win_g, r_g = *g;
1784         struct ws_win           *win;
1785         int                     i, j, s, stacks;
1786         int                     w_inc = 1, h_inc, w_base = 1, h_base;
1787         int                     hrh, extra = 0, h_slice, last_h = 0;
1788         int                     split, colno, winno, mwin, msize, mscale;
1789         int                     remain, missing, v_slice, reconfigure;
1790         unsigned int            mask;
1791
1792         DNPRINTF(SWM_D_STACK, "stack_master: workspace: %d\n rot=%s flip=%s",
1793             ws->idx, rot ? "yes" : "no", flip ? "yes" : "no");
1794
1795         winno = count_win(ws, 0);
1796         if (winno == 0 && count_win(ws, 1) == 0)
1797                 return;
1798
1799         TAILQ_FOREACH(win, &ws->winlist, entry)
1800                 if (win->transient == 0 && win->floating == 0)
1801                         break;
1802
1803         if (win == NULL)
1804                 goto notiles;
1805
1806         if (rot) {
1807                 w_inc = win->sh.width_inc;
1808                 w_base = win->sh.base_width;
1809                 mwin = ws->l_state.horizontal_mwin;
1810                 mscale = ws->l_state.horizontal_msize;
1811                 stacks = ws->l_state.horizontal_stacks;
1812                 SWAPXY(&r_g);
1813         } else {
1814                 w_inc = win->sh.height_inc;
1815                 w_base = win->sh.base_height;
1816                 mwin = ws->l_state.vertical_mwin;
1817                 mscale = ws->l_state.vertical_msize;
1818                 stacks = ws->l_state.vertical_stacks;
1819         }
1820         win_g = r_g;
1821
1822         if (stacks > winno - mwin)
1823                 stacks = winno - mwin;
1824         if (stacks < 1)
1825                 stacks = 1;
1826
1827         h_slice = r_g.h / SWM_H_SLICE;
1828         if (mwin && winno > mwin) {
1829                 v_slice = r_g.w / SWM_V_SLICE;
1830
1831                 split = mwin;
1832                 colno = split;
1833                 win_g.w = v_slice * mscale;
1834
1835                 if (w_inc > 1 && w_inc < v_slice) {
1836                         /* adjust for window's requested size increment */
1837                         remain = (win_g.w - w_base) % w_inc;
1838                         missing = w_inc - remain;
1839                         win_g.w -= remain;
1840                         extra += remain;
1841                 }
1842
1843                 msize = win_g.w;
1844                 if (flip)
1845                         win_g.x += r_g.w - msize;
1846         } else {
1847                 msize = -2;
1848                 colno = split = winno / stacks;
1849                 win_g.w = ((r_g.w - (stacks * 2) + 2) / stacks);
1850         }
1851         hrh = r_g.h / colno;
1852         extra = r_g.h - (colno * hrh);
1853         win_g.h = hrh - 2;
1854
1855         /*  stack all the tiled windows */
1856         i = j = 0, s = stacks;
1857         TAILQ_FOREACH(win, &ws->winlist, entry) {
1858                 if (win->transient != 0 || win->floating != 0)
1859                         continue;
1860
1861                 if (split && i == split) {
1862                         colno = (winno - mwin) / stacks;
1863                         if (s <= (winno - mwin) % stacks)
1864                                 colno++;
1865                         split = split + colno;
1866                         hrh = (r_g.h / colno);
1867                         extra = r_g.h - (colno * hrh);
1868                         if (flip)
1869                                 win_g.x = r_g.x;
1870                         else
1871                                 win_g.x += win_g.w + 2;
1872                         win_g.w = (r_g.w - msize - (stacks * 2)) / stacks;
1873                         if (s == 1)
1874                                 win_g.w += (r_g.w - msize - (stacks * 2)) %
1875                                     stacks;
1876                         s--;
1877                         j = 0;
1878                 }
1879                 win_g.h = hrh - 2;
1880                 if (rot) {
1881                         h_inc = win->sh.width_inc;
1882                         h_base = win->sh.base_width;
1883                 } else {
1884                         h_inc = win->sh.height_inc;
1885                         h_base = win->sh.base_height;
1886                 }
1887                 if (j == colno - 1) {
1888                         win_g.h = hrh + extra;
1889                 } else if (h_inc > 1 && h_inc < h_slice) {
1890                         /* adjust for window's requested size increment */
1891                         remain = (win_g.h - h_base) % h_inc;
1892                         missing = h_inc - remain;
1893
1894                         if (missing <= extra || j == 0) {
1895                                 extra -= missing;
1896                                 win_g.h += missing;
1897                         } else {
1898                                 win_g.h -= remain;
1899                                 extra += remain;
1900                         }
1901                 }
1902
1903                 if (j == 0)
1904                         win_g.y = r_g.y;
1905                 else
1906                         win_g.y += last_h + 2;
1907
1908                 bzero(&wc, sizeof wc);
1909                 wc.border_width = 1;
1910                 reconfigure = 0;
1911                 if (rot) {
1912                         if (win->g.x != win_g.y || win->g.y != win_g.x ||
1913                             win->g.w != win_g.h || win->g.h != win_g.w) {
1914                                 reconfigure = 1;
1915                                 win->g.x = wc.x = win_g.y;
1916                                 win->g.y = wc.y = win_g.x;
1917                                 win->g.w = wc.width = win_g.h;
1918                                 win->g.h = wc.height = win_g.w;
1919                         }
1920                 } else {
1921                         if (win->g.x != win_g.x || win->g.y != win_g.y ||
1922                             win->g.w != win_g.w || win->g.h != win_g.h) {
1923                                 reconfigure = 1;
1924                                 win->g.x = wc.x = win_g.x;
1925                                 win->g.y = wc.y = win_g.y;
1926                                 win->g.w = wc.width = win_g.w;
1927                                 win->g.h = wc.height = win_g.h;
1928                         }
1929                 }
1930                 if (reconfigure) {
1931                         adjust_font(win);
1932                         mask = CWX | CWY | CWWidth | CWHeight | CWBorderWidth;
1933                         XConfigureWindow(display, win->id, mask, &wc);
1934                         configreq_win(win);
1935                 }
1936                 XMapRaised(display, win->id);
1937
1938                 last_h = win_g.h;
1939                 i++;
1940                 j++;
1941         }
1942
1943  notiles:
1944         /* now, stack all the floaters and transients */
1945         TAILQ_FOREACH(win, &ws->winlist, entry) {
1946                 if (win->transient == 0 && win->floating == 0)
1947                         continue;
1948
1949                 stack_floater(win, ws->r);
1950                 XMapRaised(display, win->id);
1951         }
1952 }
1953
1954 void
1955 vertical_config(struct workspace *ws, int id)
1956 {
1957         DNPRINTF(SWM_D_STACK, "vertical_resize: workspace: %d\n", ws->idx);
1958
1959         switch (id) {
1960         case SWM_ARG_ID_STACKRESET:
1961         case SWM_ARG_ID_STACKINIT:
1962                 ws->l_state.vertical_msize = SWM_V_SLICE / 2;
1963                 ws->l_state.vertical_mwin = 1;
1964                 ws->l_state.vertical_stacks = 1;
1965                 break;
1966         case SWM_ARG_ID_MASTERSHRINK:
1967                 if (ws->l_state.vertical_msize > 1)
1968                         ws->l_state.vertical_msize--;
1969                 break;
1970         case SWM_ARG_ID_MASTERGROW:
1971                 if (ws->l_state.vertical_msize < SWM_V_SLICE - 1)
1972                         ws->l_state.vertical_msize++;
1973                 break;
1974         case SWM_ARG_ID_MASTERADD:
1975                 ws->l_state.vertical_mwin++;
1976                 break;
1977         case SWM_ARG_ID_MASTERDEL:
1978                 if (ws->l_state.vertical_mwin > 0)
1979                         ws->l_state.vertical_mwin--;
1980                 break;
1981         case SWM_ARG_ID_STACKINC:
1982                 ws->l_state.vertical_stacks++;
1983                 break;
1984         case SWM_ARG_ID_STACKDEC:
1985                 if (ws->l_state.vertical_stacks > 1)
1986                         ws->l_state.vertical_stacks--;
1987                 break;
1988         default:
1989                 return;
1990         }
1991 }
1992
1993 void
1994 vertical_stack(struct workspace *ws, struct swm_geometry *g)
1995 {
1996         DNPRINTF(SWM_D_STACK, "vertical_stack: workspace: %d\n", ws->idx);
1997
1998         stack_master(ws, g, 0, 0);
1999 }
2000
2001 void
2002 horizontal_config(struct workspace *ws, int id)
2003 {
2004         DNPRINTF(SWM_D_STACK, "horizontal_config: workspace: %d\n", ws->idx);
2005
2006         switch (id) {
2007         case SWM_ARG_ID_STACKRESET:
2008         case SWM_ARG_ID_STACKINIT:
2009                 ws->l_state.horizontal_mwin = 1;
2010                 ws->l_state.horizontal_msize = SWM_H_SLICE / 2;
2011                 ws->l_state.horizontal_stacks = 1;
2012                 break;
2013         case SWM_ARG_ID_MASTERSHRINK:
2014                 if (ws->l_state.horizontal_msize > 1)
2015                         ws->l_state.horizontal_msize--;
2016                 break;
2017         case SWM_ARG_ID_MASTERGROW:
2018                 if (ws->l_state.horizontal_msize < SWM_H_SLICE - 1)
2019                         ws->l_state.horizontal_msize++;
2020                 break;
2021         case SWM_ARG_ID_MASTERADD:
2022                 ws->l_state.horizontal_mwin++;
2023                 break;
2024         case SWM_ARG_ID_MASTERDEL:
2025                 if (ws->l_state.horizontal_mwin > 0)
2026                         ws->l_state.horizontal_mwin--;
2027                 break;
2028         case SWM_ARG_ID_STACKINC:
2029                 ws->l_state.horizontal_stacks++;
2030                 break;
2031         case SWM_ARG_ID_STACKDEC:
2032                 if (ws->l_state.horizontal_stacks > 1)
2033                         ws->l_state.horizontal_stacks--;
2034                 break;
2035         default:
2036                 return;
2037         }
2038 }
2039
2040 void
2041 horizontal_stack(struct workspace *ws, struct swm_geometry *g)
2042 {
2043         DNPRINTF(SWM_D_STACK, "vertical_stack: workspace: %d\n", ws->idx);
2044
2045         stack_master(ws, g, 1, 0);
2046 }
2047
2048 /* fullscreen view */
2049 void
2050 max_stack(struct workspace *ws, struct swm_geometry *g)
2051 {
2052         XWindowChanges          wc;
2053         struct swm_geometry     gg = *g;
2054         struct ws_win           *win, *wintrans = NULL;
2055         unsigned int            mask;
2056         int                     winno;
2057
2058         DNPRINTF(SWM_D_STACK, "max_stack: workspace: %d\n", ws->idx);
2059
2060         if (ws == NULL)
2061                 return;
2062
2063         winno = count_win(ws, 0);
2064         if (winno == 0 && count_win(ws, 1) == 0)
2065                 return;
2066
2067         TAILQ_FOREACH(win, &ws->winlist, entry) {
2068                 if (win->transient) {
2069                         wintrans = win;
2070                         continue;
2071                 }
2072
2073                 /* only reconfigure if necessary */
2074                 if (win->g.x != gg.x || win->g.y != gg.y || win->g.w != gg.w ||
2075                     win->g.h != gg.h) {
2076                         bzero(&wc, sizeof wc);
2077                         wc.border_width = 1;
2078                         win->g.x = wc.x = gg.x;
2079                         win->g.y = wc.y = gg.y;
2080                         win->g.w = wc.width = gg.w;
2081                         win->g.h = wc.height = gg.h;
2082                         mask = CWX | CWY | CWWidth | CWHeight | CWBorderWidth;
2083                         XConfigureWindow(display, win->id, mask, &wc);
2084                         configreq_win(win);
2085                 }
2086                 /* unmap only if we don't have multi screen */
2087                 if (win != ws->focus)
2088                         if (!(ScreenCount(display) > 1 || outputs > 1))
2089                                 unmap_window(win);
2090         }
2091
2092         /* put the last transient on top */
2093         if (wintrans) {
2094                 stack_floater(wintrans, ws->r);
2095                 focus_win(wintrans); /* override */
2096         }
2097 }
2098
2099 void
2100 send_to_ws(struct swm_region *r, union arg *args)
2101 {
2102         int                     wsid = args->id;
2103         struct ws_win           *win = win, *winfocus = NULL;
2104         struct workspace        *ws, *nws;
2105         Atom                    ws_idx_atom = 0;
2106         unsigned char           ws_idx_str[SWM_PROPLEN];
2107
2108         if (r && r->ws)
2109                 win = r->ws->focus;
2110         else
2111                 return;
2112         if (win == NULL)
2113                 return;
2114
2115         DNPRINTF(SWM_D_MOVE, "send_to_ws: win: %lu\n", win->id);
2116
2117         ws = win->ws;
2118         nws = &win->s->ws[wsid];
2119
2120         /* find a window to focus */
2121         winfocus = TAILQ_PREV(win, ws_win_list, entry);
2122         if (TAILQ_FIRST(&ws->winlist) == win)
2123                 winfocus = TAILQ_NEXT(win, entry);
2124         else {
2125                 winfocus = TAILQ_PREV(win, ws_win_list, entry);
2126                 if (winfocus == NULL)
2127                         winfocus = TAILQ_LAST(&ws->winlist, ws_win_list);
2128         }
2129         /* out of windows in ws so focus on nws instead if we multi screen */
2130         if (winfocus == NULL)
2131                 if (ScreenCount(display) > 1 || outputs > 1)
2132                         winfocus = win;
2133
2134         unmap_window(win);
2135         TAILQ_REMOVE(&ws->winlist, win, entry);
2136         TAILQ_INSERT_TAIL(&nws->winlist, win, entry);
2137         win->ws = nws;
2138
2139         /* Try to update the window's workspace property */
2140         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
2141         if (ws_idx_atom &&
2142             snprintf(ws_idx_str, SWM_PROPLEN, "%d", nws->idx) < SWM_PROPLEN) {
2143                 DNPRINTF(SWM_D_PROP, "setting property _SWM_WS to %s\n",
2144                     ws_idx_str);
2145                 XChangeProperty(display, win->id, ws_idx_atom, XA_STRING, 8,
2146                     PropModeReplace, ws_idx_str, SWM_PROPLEN);
2147         }
2148
2149         if (count_win(nws, 1) == 1)
2150                 nws->focus = win;
2151
2152         stack();
2153         if (winfocus)
2154                 focus_win(winfocus);
2155 }
2156
2157 void
2158 wkill(struct swm_region *r, union arg *args)
2159 {
2160         DNPRINTF(SWM_D_MISC, "wkill %d\n", args->id);
2161
2162         if(r->ws->focus == NULL)
2163                 return;
2164
2165         if (args->id == SWM_ARG_ID_KILLWINDOW)
2166                 XKillClient(display, r->ws->focus->id);
2167         else
2168                 if (r->ws->focus->can_delete)
2169                         client_msg(r->ws->focus, adelete);
2170 }
2171
2172 void
2173 floating_toggle(struct swm_region *r, union arg *args)
2174 {
2175         struct ws_win   *win = r->ws->focus;
2176
2177         if (win == NULL)
2178                 return;
2179
2180         win->floating = !win->floating;
2181         win->manual = 0;
2182         stack();
2183         focus_win(win);
2184 }
2185
2186 void
2187 resize_window(struct ws_win *win, int center)
2188 {
2189         unsigned int            mask;
2190         XWindowChanges          wc;
2191         struct swm_region       *r;
2192
2193         r = root_to_region(win->wa.root);
2194         bzero(&wc, sizeof wc);
2195         mask = CWBorderWidth | CWWidth | CWHeight;
2196         wc.border_width = 1;
2197         wc.width = win->g.w;
2198         wc.height = win->g.h;
2199         if (center == SWM_ARG_ID_CENTER) {
2200                 wc.x = (WIDTH(r) - win->g.w) / 2;
2201                 wc.y = (HEIGHT(r) - win->g.h) / 2;
2202                 mask |= CWX | CWY;
2203         }
2204
2205         DNPRINTF(SWM_D_STACK, "resize_window: win %lu x %d y %d w %d h %d\n",
2206             win->id, wc.x, wc.y, wc.width, wc.height);
2207
2208         XConfigureWindow(display, win->id, mask, &wc);
2209         config_win(win);
2210 }
2211
2212 void
2213 resize(struct ws_win *win, union arg *args)
2214 {
2215         XEvent                  ev;
2216         Time                    time = 0;
2217
2218         DNPRINTF(SWM_D_MOUSE, "resize: win %lu floating %d trans %d\n",
2219             win->id, win->floating, win->transient);
2220
2221         if (!(win->transient != 0 || win->floating != 0))
2222                 return;
2223
2224         if (XGrabPointer(display, win->id, False, MOUSEMASK, GrabModeAsync,
2225             GrabModeAsync, None, None /* cursor */, CurrentTime) != GrabSuccess)
2226                 return;
2227         XWarpPointer(display, None, win->id, 0, 0, 0, 0, win->g.w, win->g.h);
2228         do {
2229                 XMaskEvent(display, MOUSEMASK | ExposureMask |
2230                     SubstructureRedirectMask, &ev);
2231                 switch(ev.type) {
2232                 case ConfigureRequest:
2233                 case Expose:
2234                 case MapRequest:
2235                         handler[ev.type](&ev);
2236                         break;
2237                 case MotionNotify:
2238                         if (ev.xmotion.x <= 1)
2239                                 ev.xmotion.x = 1;
2240                         if (ev.xmotion.y <= 1)
2241                                 ev.xmotion.y = 1;
2242                         win->g.w = ev.xmotion.x;
2243                         win->g.h = ev.xmotion.y;
2244
2245                         /* not free, don't sync more than 60 times / second */
2246                         if ((ev.xmotion.time - time) > (1000 / 60) ) {
2247                                 time = ev.xmotion.time;
2248                                 XSync(display, False);
2249                                 resize_window(win, args->id);
2250                         }
2251                         break;
2252                 }
2253         } while (ev.type != ButtonRelease);
2254         if (time) {
2255                 XSync(display, False);
2256                 resize_window(win, args->id);
2257         }
2258         XWarpPointer(display, None, win->id, 0, 0, 0, 0, win->g.w - 1,
2259             win->g.h - 1);
2260         XUngrabPointer(display, CurrentTime);
2261
2262         /* drain events */
2263         while (XCheckMaskEvent(display, EnterWindowMask, &ev));
2264 }
2265
2266 void
2267 move_window(struct ws_win *win)
2268 {
2269         unsigned int            mask;
2270         XWindowChanges          wc;
2271         struct swm_region       *r;
2272
2273         r = root_to_region(win->wa.root);
2274         bzero(&wc, sizeof wc);
2275         mask = CWX | CWY;
2276         wc.x = win->g.x;
2277         wc.y = win->g.y;
2278
2279         DNPRINTF(SWM_D_STACK, "move_window: win %lu x %d y %d w %d h %d\n",
2280             win->id, wc.x, wc.y, wc.width, wc.height);
2281
2282         XConfigureWindow(display, win->id, mask, &wc);
2283         config_win(win);
2284 }
2285
2286 void
2287 move(struct ws_win *win, union arg *args)
2288 {
2289         XEvent                  ev;
2290         Time                    time = 0;
2291         int                     restack = 0;
2292
2293         DNPRINTF(SWM_D_MOUSE, "move: win %lu floating %d trans %d\n",
2294             win->id, win->floating, win->transient);
2295
2296         if (win->floating == 0) {
2297                 win->floating = 1;
2298                 win->manual = 1;
2299                 restack = 1;
2300         }
2301
2302         if (XGrabPointer(display, win->id, False, MOUSEMASK, GrabModeAsync,
2303             GrabModeAsync, None, None /* cursor */, CurrentTime) != GrabSuccess)
2304                 return;
2305         XWarpPointer(display, None, win->id, 0, 0, 0, 0, 0, 0);
2306         do {
2307                 XMaskEvent(display, MOUSEMASK | ExposureMask |
2308                     SubstructureRedirectMask, &ev);
2309                 switch(ev.type) {
2310                 case ConfigureRequest:
2311                 case Expose:
2312                 case MapRequest:
2313                         handler[ev.type](&ev);
2314                         break;
2315                 case MotionNotify:
2316                         win->g.x = ev.xmotion.x_root;
2317                         win->g.y = ev.xmotion.y_root;
2318
2319                         /* not free, don't sync more than 60 times / second */
2320                         if ((ev.xmotion.time - time) > (1000 / 60) ) {
2321                                 time = ev.xmotion.time;
2322                                 XSync(display, False);
2323                                 move_window(win);
2324                         }
2325                         break;
2326                 }
2327         } while (ev.type != ButtonRelease);
2328         if (time) {
2329                 XSync(display, False);
2330                 move_window(win);
2331         }
2332         XWarpPointer(display, None, win->id, 0, 0, 0, 0, 0, 0);
2333         XUngrabPointer(display, CurrentTime);
2334         if (restack)
2335                 stack();
2336
2337         /* drain events */
2338         while (XCheckMaskEvent(display, EnterWindowMask, &ev));
2339 }
2340
2341 /* key definitions */
2342 void
2343 dummykeyfunc(struct swm_region *r, union arg *args)
2344 {
2345 };
2346
2347 void
2348 legacyfunc(struct swm_region *r, union arg *args)
2349 {
2350 };
2351
2352 struct keyfunc {
2353         char                    name[SWM_FUNCNAME_LEN];
2354         void                    (*func)(struct swm_region *r, union arg *);
2355         union arg               args;
2356 } keyfuncs[kf_invalid + 1] = {
2357         /* name                 function        argument */
2358         { "cycle_layout",       cycle_layout,   {0} },
2359         { "stack_reset",        stack_config,   {.id = SWM_ARG_ID_STACKRESET} },
2360         { "master_shrink",      stack_config,   {.id = SWM_ARG_ID_MASTERSHRINK} },
2361         { "master_grow",        stack_config,   {.id = SWM_ARG_ID_MASTERGROW} },
2362         { "master_add",         stack_config,   {.id = SWM_ARG_ID_MASTERADD} },
2363         { "master_del",         stack_config,   {.id = SWM_ARG_ID_MASTERDEL} },
2364         { "stack_inc",          stack_config,   {.id = SWM_ARG_ID_STACKINC} },
2365         { "stack_dec",          stack_config,   {.id = SWM_ARG_ID_STACKDEC} },
2366         { "swap_main",          swapwin,        {.id = SWM_ARG_ID_SWAPMAIN} },
2367         { "focus_next",         focus,          {.id = SWM_ARG_ID_FOCUSNEXT} },
2368         { "focus_prev",         focus,          {.id = SWM_ARG_ID_FOCUSPREV} },
2369         { "swap_next",          swapwin,        {.id = SWM_ARG_ID_SWAPNEXT} },
2370         { "swap_prev",          swapwin,        {.id = SWM_ARG_ID_SWAPPREV} },
2371         { "spawn_term",         spawnterm,      {.argv = spawn_term} },
2372         { "spawn_menu",         legacyfunc,     {0} },
2373         { "quit",               quit,           {0} },
2374         { "restart",            restart,        {0} },
2375         { "focus_main",         focus,          {.id = SWM_ARG_ID_FOCUSMAIN} },
2376         { "ws_1",               switchws,       {.id = 0} },
2377         { "ws_2",               switchws,       {.id = 1} },
2378         { "ws_3",               switchws,       {.id = 2} },
2379         { "ws_4",               switchws,       {.id = 3} },
2380         { "ws_5",               switchws,       {.id = 4} },
2381         { "ws_6",               switchws,       {.id = 5} },
2382         { "ws_7",               switchws,       {.id = 6} },
2383         { "ws_8",               switchws,       {.id = 7} },
2384         { "ws_9",               switchws,       {.id = 8} },
2385         { "ws_10",              switchws,       {.id = 9} },
2386         { "ws_next",            cyclews,        {.id = SWM_ARG_ID_CYCLEWS_UP} },
2387         { "ws_prev",            cyclews,        {.id = SWM_ARG_ID_CYCLEWS_DOWN} },
2388         { "screen_next",        cyclescr,       {.id = SWM_ARG_ID_CYCLESC_UP} },
2389         { "screen_prev",        cyclescr,       {.id = SWM_ARG_ID_CYCLESC_DOWN} },
2390         { "mvws_1",             send_to_ws,     {.id = 0} },
2391         { "mvws_2",             send_to_ws,     {.id = 1} },
2392         { "mvws_3",             send_to_ws,     {.id = 2} },
2393         { "mvws_4",             send_to_ws,     {.id = 3} },
2394         { "mvws_5",             send_to_ws,     {.id = 4} },
2395         { "mvws_6",             send_to_ws,     {.id = 5} },
2396         { "mvws_7",             send_to_ws,     {.id = 6} },
2397         { "mvws_8",             send_to_ws,     {.id = 7} },
2398         { "mvws_9",             send_to_ws,     {.id = 8} },
2399         { "mvws_10",            send_to_ws,     {.id = 9} },
2400         { "bar_toggle",         bar_toggle,     {0} },
2401         { "wind_kill",          wkill,          {.id = SWM_ARG_ID_KILLWINDOW} },
2402         { "wind_del",           wkill,          {.id = SWM_ARG_ID_DELETEWINDOW} },
2403         { "screenshot_all",     legacyfunc,     {0} },
2404         { "screenshot_wind",    legacyfunc,     {0} },
2405         { "float_toggle",       floating_toggle,{0} },
2406         { "version",            version,        {0} },
2407         { "spawn_lock",         legacyfunc,     {0} },
2408         { "spawn_initscr",      legacyfunc,     {0} },
2409         { "spawn_custom",       dummykeyfunc,   {0} },
2410         { "dumpwins",           dumpwins,       {0} },
2411         { "invalid key func",   NULL,           {0} },
2412 };
2413 struct key {
2414         unsigned int            mod;
2415         KeySym                  keysym;
2416         enum keyfuncid          funcid;
2417         char                    *spawn_name;
2418 };
2419 int                             keys_size = 0, keys_length = 0;
2420 struct key                      *keys = NULL;
2421
2422 /* mouse */
2423 enum { client_click, root_click };
2424 struct button {
2425         unsigned int            action;
2426         unsigned int            mask;
2427         unsigned int            button;
2428         void                    (*func)(struct ws_win *, union arg *);
2429         union arg               args;
2430 } buttons[] = {
2431           /* action     key             mouse button    func    args */
2432         { client_click, MODKEY,         Button3,        resize, {.id = SWM_ARG_ID_DONTCENTER} },
2433         { client_click, MODKEY | ShiftMask, Button3,    resize, {.id = SWM_ARG_ID_CENTER} },
2434         { client_click, MODKEY,         Button1,        move,   {0} },
2435 };
2436
2437 void
2438 update_modkey(unsigned int mod)
2439 {
2440         int                     i;
2441
2442         mod_key = mod;
2443         for (i = 0; i < keys_length; i++)
2444                 if (keys[i].mod & ShiftMask)
2445                         keys[i].mod = mod | ShiftMask;
2446                 else
2447                         keys[i].mod = mod;
2448
2449         for (i = 0; i < LENGTH(buttons); i++)
2450                 if (buttons[i].mask & ShiftMask)
2451                         buttons[i].mask = mod | ShiftMask;
2452                 else
2453                         buttons[i].mask = mod;
2454 }
2455
2456 /* spawn */
2457 struct spawn_prog {
2458         char                    *name;
2459         int                     argc;
2460         char                    **argv;
2461 };
2462
2463 int                             spawns_size = 0, spawns_length = 0;
2464 struct spawn_prog               *spawns = NULL;
2465
2466 void
2467 spawn_custom(struct swm_region *r, union arg *args, char *spawn_name)
2468 {
2469         union arg               a;
2470         struct spawn_prog       *prog = NULL;
2471         int                     i;
2472         char                    *ap, **real_args;
2473
2474         DNPRINTF(SWM_D_SPAWN, "spawn_custom %s\n", spawn_name);
2475
2476         /* find program */
2477         for (i = 0; i < spawns_length; i++) {
2478                 if (!strcasecmp(spawn_name, spawns[i].name))
2479                         prog = &spawns[i];
2480         }
2481         if (prog == NULL) {
2482                 fprintf(stderr, "spawn_custom: program %s not found\n",
2483                     spawn_name);
2484                 return;
2485         }
2486
2487         /* make room for expanded args */
2488         if ((real_args = calloc(prog->argc + 1, sizeof(char *))) == NULL)
2489                 err(1, "spawn_custom: calloc real_args");
2490
2491         /* expand spawn_args into real_args */
2492         for (i = 0; i < prog->argc; i++) {
2493                 ap = prog->argv[i];
2494                 DNPRINTF(SWM_D_SPAWN, "spawn_custom: raw arg = %s\n", ap);
2495                 if (!strcasecmp(ap, "$bar_border")) {
2496                         if ((real_args[i] =
2497                             strdup(r->s->c[SWM_S_COLOR_BAR_BORDER].name))
2498                             == NULL)
2499                                 err(1,  "spawn_custom border color");
2500                 } else if (!strcasecmp(ap, "$bar_color")) {
2501                         if ((real_args[i] =
2502                             strdup(r->s->c[SWM_S_COLOR_BAR].name))
2503                             == NULL)
2504                                 err(1, "spawn_custom bar color");
2505                 } else if (!strcasecmp(ap, "$bar_font")) {
2506                         if ((real_args[i] = strdup(bar_fonts[bar_fidx]))
2507                             == NULL)
2508                                 err(1, "spawn_custom bar fonts");
2509                 } else if (!strcasecmp(ap, "$bar_font_color")) {
2510                         if ((real_args[i] =
2511                             strdup(r->s->c[SWM_S_COLOR_BAR_FONT].name))
2512                             == NULL)
2513                                 err(1, "spawn_custom color font");
2514                 } else if (!strcasecmp(ap, "$color_focus")) {
2515                         if ((real_args[i] =
2516                             strdup(r->s->c[SWM_S_COLOR_FOCUS].name))
2517                             == NULL)
2518                                 err(1, "spawn_custom color focus");
2519                 } else if (!strcasecmp(ap, "$color_unfocus")) {
2520                         if ((real_args[i] =
2521                             strdup(r->s->c[SWM_S_COLOR_UNFOCUS].name))
2522                             == NULL)
2523                                 err(1, "spawn_custom color unfocus");
2524                 } else {
2525                         /* no match --> copy as is */
2526                         if ((real_args[i] = strdup(ap)) == NULL)
2527                                 err(1, "spawn_custom strdup(ap)");
2528                 }
2529                 DNPRINTF(SWM_D_SPAWN, "spawn_custom: cooked arg = %s\n",
2530                     real_args[i]);
2531         }
2532
2533 #ifdef SWM_DEBUG
2534         if ((swm_debug & SWM_D_SPAWN) != 0) {
2535                 fprintf(stderr, "spawn_custom: result = ");
2536                 for (i = 0; i < prog->argc; i++)
2537                         fprintf(stderr, "\"%s\" ", real_args[i]);
2538                 fprintf(stderr, "\n");
2539         }
2540 #endif
2541
2542         a.argv = real_args;
2543         spawn(r, &a);
2544         for (i = 0; i < prog->argc; i++)
2545                 free(real_args[i]);
2546         free(real_args);
2547 }
2548
2549 void
2550 setspawn(struct spawn_prog *prog)
2551 {
2552         int                     i, j;
2553
2554         if (prog == NULL || prog->name == NULL)
2555                 return;
2556
2557         /* find existing */
2558         for (i = 0; i < spawns_length; i++) {
2559                 if (!strcmp(spawns[i].name, prog->name)) {
2560                         /* found */
2561                         if (prog->argv == NULL) {
2562                                 /* delete */
2563                                 DNPRINTF(SWM_D_SPAWN,
2564                                     "setspawn: delete #%d %s\n",
2565                                     i, spawns[i].name);
2566                                 free(spawns[i].name);
2567                                 for (j = 0; j < spawns[i].argc; j++)
2568                                         free(spawns[i].argv[j]);
2569                                 free(spawns[i].argv);
2570                                 j = spawns_length - 1;
2571                                 if (i < j)
2572                                         spawns[i] = spawns[j];
2573                                 spawns_length--;
2574                                 free(prog->name);
2575                         } else {
2576                                 /* replace */
2577                                 DNPRINTF(SWM_D_SPAWN,
2578                                     "setspawn: replace #%d %s\n",
2579                                     i, spawns[i].name);
2580                                 free(spawns[i].name);
2581                                 for (j = 0; j < spawns[i].argc; j++)
2582                                         free(spawns[i].argv[j]);
2583                                 free(spawns[i].argv);
2584                                 spawns[i] = *prog;
2585                         }
2586                         /* found case handled */
2587                         free(prog);
2588                         return;
2589                 }
2590         }
2591
2592         if (prog->argv == NULL) {
2593                 fprintf(stderr,
2594                     "error: setspawn: cannot find program %s", prog->name);
2595                 free(prog);
2596                 return;
2597         }
2598
2599         /* not found: add */
2600         if (spawns_size == 0 || spawns == NULL) {
2601                 spawns_size = 4;
2602                 DNPRINTF(SWM_D_SPAWN, "setspawn: init list %d\n", spawns_size);
2603                 spawns = malloc((size_t)spawns_size *
2604                     sizeof(struct spawn_prog));
2605                 if (spawns == NULL) {
2606                         fprintf(stderr, "setspawn: malloc failed\n");
2607                         perror(" failed");
2608                         quit(NULL, NULL);
2609                 }
2610         } else if (spawns_length == spawns_size) {
2611                 spawns_size *= 2;
2612                 DNPRINTF(SWM_D_SPAWN, "setspawn: grow list %d\n", spawns_size);
2613                 spawns = realloc(spawns, (size_t)spawns_size *
2614                     sizeof(struct spawn_prog));
2615                 if (spawns == NULL) {
2616                         fprintf(stderr, "setspawn: realloc failed\n");
2617                         perror(" failed");
2618                         quit(NULL, NULL);
2619                 }
2620         }
2621
2622         if (spawns_length < spawns_size) {
2623                 DNPRINTF(SWM_D_SPAWN, "setspawn: add #%d %s\n",
2624                     spawns_length, prog->name);
2625                 i = spawns_length++;
2626                 spawns[i] = *prog;
2627         } else {
2628                 fprintf(stderr, "spawns array problem?\n");
2629                 if (spawns == NULL) {
2630                         fprintf(stderr, "spawns array is NULL!\n");
2631                         quit(NULL, NULL);
2632                 }
2633         }
2634         free(prog);
2635 }
2636
2637 int
2638 setconfspawn(char *selector, char *value, int flags)
2639 {
2640         struct spawn_prog       *prog;
2641         char                    *vp, *cp, *word;
2642
2643         DNPRINTF(SWM_D_SPAWN, "setconfspawn: [%s] [%s]\n", selector, value);
2644         if ((prog = calloc(1, sizeof *prog)) == NULL)
2645                 err(1, "setconfspawn: calloc prog");
2646         prog->name = strdup(selector);
2647         if (prog->name == NULL)
2648                 err(1, "setconfspawn prog->name");
2649         if ((cp = vp = strdup(value)) == NULL)
2650                 err(1, "setconfspawn: strdup(value) ");
2651         while ((word = strsep(&cp, " \t")) != NULL) {
2652                 DNPRINTF(SWM_D_SPAWN, "setconfspawn: arg [%s]\n", word);
2653                 if (cp)
2654                         cp += (long)strspn(cp, " \t");
2655                 if (strlen(word) > 0) {
2656                         prog->argc++;
2657                         prog->argv = realloc(prog->argv,
2658                             prog->argc * sizeof(char *));
2659                         if ((prog->argv[prog->argc - 1] = strdup(word)) == NULL)
2660                                 err(1, "setconfspawn: strdup");
2661                 }
2662         }
2663         free(vp);
2664
2665         setspawn(prog);
2666
2667         DNPRINTF(SWM_D_SPAWN, "setconfspawn: done\n");
2668         return (0);
2669 }
2670
2671 void
2672 setup_spawn(void)
2673 {
2674         setconfspawn("term",            "xterm",                0);
2675         setconfspawn("screenshot_all",  "screenshot.sh full",   0);
2676         setconfspawn("screenshot_wind", "screenshot.sh window", 0);
2677         setconfspawn("lock",            "xlock",                0);
2678         setconfspawn("initscr",         "initscreen.sh",        0);
2679         setconfspawn("menu",            "dmenu_run"
2680                                         " -fn $bar_font"
2681                                         " -nb $bar_color"
2682                                         " -nf $bar_font_color"
2683                                         " -sb $bar_border"
2684                                         " -sf $bar_color",      0);
2685 }
2686
2687 /* key bindings */
2688 #define SWM_MODNAME_SIZE        32
2689 #define SWM_KEY_WS              "\n+ \t"
2690 int
2691 parsekeys(char *keystr, unsigned int currmod, unsigned int *mod, KeySym *ks)
2692 {
2693         char                    *cp, *name;
2694         KeySym                  uks;
2695         DNPRINTF(SWM_D_KEY, "parsekeys: enter [%s]\n", keystr);
2696         if (mod == NULL || ks == NULL) {
2697                 DNPRINTF(SWM_D_KEY, "parsekeys: no mod or key vars\n");
2698                 return (1);
2699         }
2700         if (keystr == NULL || strlen(keystr) == 0) {
2701                 DNPRINTF(SWM_D_KEY, "parsekeys: no keystr\n");
2702                 return (1);
2703         }
2704         cp = keystr;
2705         *ks = NoSymbol;
2706         *mod = 0;
2707         while ((name = strsep(&cp, SWM_KEY_WS)) != NULL) {
2708                 DNPRINTF(SWM_D_KEY, "parsekeys: key [%s]\n", name);
2709                 if (cp)
2710                         cp += (long)strspn(cp, SWM_KEY_WS);
2711                 if (strncasecmp(name, "MOD", SWM_MODNAME_SIZE) == 0)
2712                         *mod |= currmod;
2713                 else if (!strncasecmp(name, "Mod1", SWM_MODNAME_SIZE))
2714                         *mod |= Mod1Mask;
2715                 else if (!strncasecmp(name, "Mod2", SWM_MODNAME_SIZE))
2716                         *mod += Mod2Mask;
2717                 else if (!strncmp(name, "Mod3", SWM_MODNAME_SIZE))
2718                         *mod |= Mod3Mask;
2719                 else if (!strncmp(name, "Mod4", SWM_MODNAME_SIZE))
2720                         *mod |= Mod4Mask;
2721                 else if (strncasecmp(name, "SHIFT", SWM_MODNAME_SIZE) == 0)
2722                         *mod |= ShiftMask;
2723                 else if (strncasecmp(name, "CONTROL", SWM_MODNAME_SIZE) == 0)
2724                         *mod |= ControlMask;
2725                 else {
2726                         *ks = XStringToKeysym(name);
2727                         XConvertCase(*ks, ks, &uks);
2728                         if (ks == NoSymbol) {
2729                                 DNPRINTF(SWM_D_KEY,
2730                                     "parsekeys: invalid key %s\n",
2731                                     name);
2732                                 return (1);
2733                         }
2734                 }
2735         }
2736         DNPRINTF(SWM_D_KEY, "parsekeys: leave ok\n");
2737         return (0);
2738 }
2739
2740 char *
2741 strdupsafe(char *str)
2742 {
2743         if (str == NULL)
2744                 return (NULL);
2745         else
2746                 return (strdup(str));
2747 }
2748
2749 void
2750 setkeybinding(unsigned int mod, KeySym ks, enum keyfuncid kfid, char *spawn_name)
2751 {
2752         int                     i, j;
2753         DNPRINTF(SWM_D_KEY, "setkeybinding: enter %s [%s]\n",
2754             keyfuncs[kfid].name, spawn_name);
2755         /* find existing */
2756         for (i = 0; i < keys_length; i++) {
2757                 if (keys[i].mod == mod && keys[i].keysym == ks) {
2758                         if (kfid == kf_invalid) {
2759                                 /* found: delete */
2760                                 DNPRINTF(SWM_D_KEY,
2761                                     "setkeybinding: delete #%d %s\n",
2762                                     i, keyfuncs[keys[i].funcid].name);
2763                                 free(keys[i].spawn_name);
2764                                 j = keys_length - 1;
2765                                 if (i < j)
2766                                         keys[i] = keys[j];
2767                                 keys_length--;
2768                                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2769                                 return;
2770                         } else {
2771                                 /* found: replace */
2772                                 DNPRINTF(SWM_D_KEY,
2773                                     "setkeybinding: replace #%d %s %s\n",
2774                                     i, keyfuncs[keys[i].funcid].name,
2775                                     spawn_name);
2776                                 free(keys[i].spawn_name);
2777                                 keys[i].mod = mod;
2778                                 keys[i].keysym = ks;
2779                                 keys[i].funcid = kfid;
2780                                 keys[i].spawn_name = strdupsafe(spawn_name);
2781                                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2782                                 return;
2783                         }
2784                 }
2785         }
2786         if (kfid == kf_invalid) {
2787                 fprintf(stderr,
2788                     "error: setkeybinding: cannot find mod/key combination");
2789                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2790                 return;
2791         }
2792         /* not found: add */
2793         if (keys_size == 0 || keys == NULL) {
2794                 keys_size = 4;
2795                 DNPRINTF(SWM_D_KEY, "setkeybinding: init list %d\n", keys_size);
2796                 keys = malloc((size_t)keys_size * sizeof(struct key));
2797                 if (!keys) {
2798                         fprintf(stderr, "malloc failed\n");
2799                         perror(" failed");
2800                         quit(NULL, NULL);
2801                 }
2802         } else if (keys_length == keys_size) {
2803                 keys_size *= 2;
2804                 DNPRINTF(SWM_D_KEY, "setkeybinding: grow list %d\n", keys_size);
2805                 keys = realloc(keys, (size_t)keys_size * sizeof(struct key));
2806                 if (!keys) {
2807                         fprintf(stderr, "realloc failed\n");
2808                         perror(" failed");
2809                         quit(NULL, NULL);
2810                 }
2811         }
2812         if (keys_length < keys_size) {
2813                 j = keys_length++;
2814                 DNPRINTF(SWM_D_KEY, "setkeybinding: add #%d %s %s\n",
2815                     j, keyfuncs[kfid].name, spawn_name);
2816                 keys[j].mod = mod;
2817                 keys[j].keysym = ks;
2818                 keys[j].funcid = kfid;
2819                 keys[j].spawn_name = strdupsafe(spawn_name);
2820         } else {
2821                 fprintf(stderr, "keys array problem?\n");
2822                 if (!keys) {
2823                         fprintf(stderr, "keys array problem\n");
2824                         quit(NULL, NULL);
2825                 }
2826         }
2827         DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2828 }
2829
2830 int
2831 setconfbinding(char *selector, char *value, int flags)
2832 {
2833         enum keyfuncid          kfid;
2834         unsigned int            mod;
2835         KeySym                  ks;
2836         int                     i;
2837         DNPRINTF(SWM_D_KEY, "setconfbinding: enter\n");
2838         if (selector == NULL) {
2839                 DNPRINTF(SWM_D_KEY, "setconfbinding: unbind %s\n", value);
2840                 if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2841                         kfid = kf_invalid;
2842                         setkeybinding(mod, ks, kfid, NULL);
2843                         return (0);
2844                 } else
2845                         return (1);
2846         }
2847         /* search by key function name */
2848         for (kfid = 0; kfid < kf_invalid; (kfid)++) {
2849                 if (strncasecmp(selector, keyfuncs[kfid].name,
2850                     SWM_FUNCNAME_LEN) == 0) {
2851                         DNPRINTF(SWM_D_KEY, "setconfbinding: %s: match\n",
2852                             selector);
2853                         if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2854                                 setkeybinding(mod, ks, kfid, NULL);
2855                                 return (0);
2856                         } else
2857                                 return (1);
2858                 }
2859         }
2860         /* search by custom spawn name */
2861         for (i = 0; i < spawns_length; i++) {
2862                 if (strcasecmp(selector, spawns[i].name) == 0) {
2863                         DNPRINTF(SWM_D_KEY, "setconfbinding: %s: match\n",
2864                             selector);
2865                         if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2866                                 setkeybinding(mod, ks, kf_spawn_custom,
2867                                     spawns[i].name);
2868                                 return (0);
2869                         } else
2870                                 return (1);
2871                 }
2872         }
2873         DNPRINTF(SWM_D_KEY, "setconfbinding: no match\n");
2874         return (1);
2875 }
2876
2877 void
2878 setup_keys(void)
2879 {
2880         setkeybinding(MODKEY,           XK_space,       kf_cycle_layout,NULL);
2881         setkeybinding(MODKEY|ShiftMask, XK_space,       kf_stack_reset, NULL);
2882         setkeybinding(MODKEY,           XK_h,           kf_master_shrink,NULL);
2883         setkeybinding(MODKEY,           XK_l,           kf_master_grow, NULL);
2884         setkeybinding(MODKEY,           XK_comma,       kf_master_add,  NULL);
2885         setkeybinding(MODKEY,           XK_period,      kf_master_del,  NULL);
2886         setkeybinding(MODKEY|ShiftMask, XK_comma,       kf_stack_inc,   NULL);
2887         setkeybinding(MODKEY|ShiftMask, XK_period,      kf_stack_dec,   NULL);
2888         setkeybinding(MODKEY,           XK_Return,      kf_swap_main,   NULL);
2889         setkeybinding(MODKEY,           XK_j,           kf_focus_next,  NULL);
2890         setkeybinding(MODKEY,           XK_k,           kf_focus_prev,  NULL);
2891         setkeybinding(MODKEY|ShiftMask, XK_j,           kf_swap_next,   NULL);
2892         setkeybinding(MODKEY|ShiftMask, XK_k,           kf_swap_prev,   NULL);
2893         setkeybinding(MODKEY|ShiftMask, XK_Return,      kf_spawn_term,  NULL);
2894         setkeybinding(MODKEY,           XK_p,           kf_spawn_custom,        "menu");
2895         setkeybinding(MODKEY|ShiftMask, XK_q,           kf_quit,        NULL);
2896         setkeybinding(MODKEY,           XK_q,           kf_restart,     NULL);
2897         setkeybinding(MODKEY,           XK_m,           kf_focus_main,  NULL);
2898         setkeybinding(MODKEY,           XK_1,           kf_ws_1,        NULL);
2899         setkeybinding(MODKEY,           XK_2,           kf_ws_2,        NULL);
2900         setkeybinding(MODKEY,           XK_3,           kf_ws_3,        NULL);
2901         setkeybinding(MODKEY,           XK_4,           kf_ws_4,        NULL);
2902         setkeybinding(MODKEY,           XK_5,           kf_ws_5,        NULL);
2903         setkeybinding(MODKEY,           XK_6,           kf_ws_6,        NULL);
2904         setkeybinding(MODKEY,           XK_7,           kf_ws_7,        NULL);
2905         setkeybinding(MODKEY,           XK_8,           kf_ws_8,        NULL);
2906         setkeybinding(MODKEY,           XK_9,           kf_ws_9,        NULL);
2907         setkeybinding(MODKEY,           XK_0,           kf_ws_10,       NULL);
2908         setkeybinding(MODKEY,           XK_Right,       kf_ws_next,     NULL);
2909         setkeybinding(MODKEY,           XK_Left,        kf_ws_prev,     NULL);
2910         setkeybinding(MODKEY|ShiftMask, XK_Right,       kf_screen_next, NULL);
2911         setkeybinding(MODKEY|ShiftMask, XK_Left,        kf_screen_prev, NULL);
2912         setkeybinding(MODKEY|ShiftMask, XK_1,           kf_mvws_1,      NULL);
2913         setkeybinding(MODKEY|ShiftMask, XK_2,           kf_mvws_2,      NULL);
2914         setkeybinding(MODKEY|ShiftMask, XK_3,           kf_mvws_3,      NULL);
2915         setkeybinding(MODKEY|ShiftMask, XK_4,           kf_mvws_4,      NULL);
2916         setkeybinding(MODKEY|ShiftMask, XK_5,           kf_mvws_5,      NULL);
2917         setkeybinding(MODKEY|ShiftMask, XK_6,           kf_mvws_6,      NULL);
2918         setkeybinding(MODKEY|ShiftMask, XK_7,           kf_mvws_7,      NULL);
2919         setkeybinding(MODKEY|ShiftMask, XK_8,           kf_mvws_8,      NULL);
2920         setkeybinding(MODKEY|ShiftMask, XK_9,           kf_mvws_9,      NULL);
2921         setkeybinding(MODKEY|ShiftMask, XK_0,           kf_mvws_10,     NULL);
2922         setkeybinding(MODKEY,           XK_b,           kf_bar_toggle,  NULL);
2923         setkeybinding(MODKEY,           XK_Tab,         kf_focus_next,  NULL);
2924         setkeybinding(MODKEY|ShiftMask, XK_Tab,         kf_focus_prev,  NULL);
2925         setkeybinding(MODKEY|ShiftMask, XK_x,           kf_wind_kill,   NULL);
2926         setkeybinding(MODKEY,           XK_x,           kf_wind_del,    NULL);
2927         setkeybinding(MODKEY,           XK_s,           kf_spawn_custom,        "screenshot_all");
2928         setkeybinding(MODKEY|ShiftMask, XK_s,           kf_spawn_custom,        "screenshot_wind");
2929         setkeybinding(MODKEY,           XK_t,           kf_float_toggle,NULL);
2930         setkeybinding(MODKEY|ShiftMask, XK_v,           kf_version,     NULL);
2931         setkeybinding(MODKEY|ShiftMask, XK_Delete,      kf_spawn_custom,        "lock");
2932         setkeybinding(MODKEY|ShiftMask, XK_i,           kf_spawn_custom,        "initscr");
2933 #ifdef SWM_DEBUG
2934         setkeybinding(MODKEY|ShiftMask, XK_d,           kf_dumpwins,    NULL);
2935 #endif
2936 }
2937
2938 void
2939 updatenumlockmask(void)
2940 {
2941         unsigned int            i, j;
2942         XModifierKeymap         *modmap;
2943
2944         DNPRINTF(SWM_D_MISC, "updatenumlockmask\n");
2945         numlockmask = 0;
2946         modmap = XGetModifierMapping(display);
2947         for (i = 0; i < 8; i++)
2948                 for (j = 0; j < modmap->max_keypermod; j++)
2949                         if (modmap->modifiermap[i * modmap->max_keypermod + j]
2950                           == XKeysymToKeycode(display, XK_Num_Lock))
2951                                 numlockmask = (1 << i);
2952
2953         XFreeModifiermap(modmap);
2954 }
2955
2956 void
2957 grabkeys(void)
2958 {
2959         unsigned int            i, j, k;
2960         KeyCode                 code;
2961         unsigned int            modifiers[] =
2962             { 0, LockMask, numlockmask, numlockmask | LockMask };
2963
2964         DNPRINTF(SWM_D_MISC, "grabkeys\n");
2965         updatenumlockmask();
2966
2967         for (k = 0; k < ScreenCount(display); k++) {
2968                 if (TAILQ_EMPTY(&screens[k].rl))
2969                         continue;
2970                 XUngrabKey(display, AnyKey, AnyModifier, screens[k].root);
2971                 for (i = 0; i < keys_length; i++) {
2972                         if ((code = XKeysymToKeycode(display, keys[i].keysym)))
2973                                 for (j = 0; j < LENGTH(modifiers); j++)
2974                                         XGrabKey(display, code,
2975                                             keys[i].mod | modifiers[j],
2976                                             screens[k].root, True,
2977                                             GrabModeAsync, GrabModeAsync);
2978                 }
2979         }
2980 }
2981
2982 void
2983 grabbuttons(struct ws_win *win, int focused)
2984 {
2985         unsigned int            i, j;
2986         unsigned int            modifiers[] =
2987             { 0, LockMask, numlockmask, numlockmask|LockMask };
2988
2989         updatenumlockmask();
2990         XUngrabButton(display, AnyButton, AnyModifier, win->id);
2991         if(focused) {
2992                 for (i = 0; i < LENGTH(buttons); i++)
2993                         if (buttons[i].action == client_click)
2994                                 for (j = 0; j < LENGTH(modifiers); j++)
2995                                         XGrabButton(display, buttons[i].button,
2996                                             buttons[i].mask | modifiers[j],
2997                                             win->id, False, BUTTONMASK,
2998                                             GrabModeAsync, GrabModeSync, None,
2999                                             None);
3000         } else
3001                 XGrabButton(display, AnyButton, AnyModifier, win->id, False,
3002                     BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
3003 }
3004
3005 const char *quirkname[] = {
3006         "NONE",         /* config string for "no value" */
3007         "FLOAT",
3008         "TRANSSZ",
3009         "ANYWHERE",
3010         "XTERM_FONTADJ",
3011         "FULLSCREEN",
3012 };
3013
3014 /* SWM_Q_WS: retain '|' for back compat for now (2009-08-11) */
3015 #define SWM_Q_WS                "\n|+ \t"
3016 int
3017 parsequirks(char *qstr, unsigned long *quirk)
3018 {
3019         char                    *cp, *name;
3020         int                     i;
3021
3022         if (quirk == NULL)
3023                 return (1);
3024
3025         cp = qstr;
3026         *quirk = 0;
3027         while ((name = strsep(&cp, SWM_Q_WS)) != NULL) {
3028                 if (cp)
3029                         cp += (long)strspn(cp, SWM_Q_WS);
3030                 for (i = 0; i < LENGTH(quirkname); i++) {
3031                         if (!strncasecmp(name, quirkname[i], SWM_QUIRK_LEN)) {
3032                                 DNPRINTF(SWM_D_QUIRK, "parsequirks: %s\n", name);
3033                                 if (i == 0) {
3034                                         *quirk = 0;
3035                                         return (0);
3036                                 }
3037                                 *quirk |= 1 << (i-1);
3038                                 break;
3039                         }
3040                 }
3041                 if (i >= LENGTH(quirkname)) {
3042                         DNPRINTF(SWM_D_QUIRK,
3043                             "parsequirks: invalid quirk [%s]\n", name);
3044                         return (1);
3045                 }
3046         }
3047         return (0);
3048 }
3049
3050 void
3051 setquirk(const char *class, const char *name, const int quirk)
3052 {
3053         int                     i, j;
3054
3055         /* find existing */
3056         for (i = 0; i < quirks_length; i++) {
3057                 if (!strcmp(quirks[i].class, class) &&
3058                     !strcmp(quirks[i].name, name)) {
3059                         if (!quirk) {
3060                                 /* found: delete */
3061                                 DNPRINTF(SWM_D_QUIRK,
3062                                     "setquirk: delete #%d %s:%s\n",
3063                                     i, quirks[i].class, quirks[i].name);
3064                                 free(quirks[i].class);
3065                                 free(quirks[i].name);
3066                                 j = quirks_length - 1;
3067                                 if (i < j)
3068                                         quirks[i] = quirks[j];
3069                                 quirks_length--;
3070                                 return;
3071                         } else {
3072                                 /* found: replace */
3073                                 DNPRINTF(SWM_D_QUIRK,
3074                                     "setquirk: replace #%d %s:%s\n",
3075                                     i, quirks[i].class, quirks[i].name);
3076                                 free(quirks[i].class);
3077                                 free(quirks[i].name);
3078                                 quirks[i].class = strdup(class);
3079                                 quirks[i].name = strdup(name);
3080                                 quirks[i].quirk = quirk;
3081                                 return;
3082                         }
3083                 }
3084         }
3085         if (!quirk) {
3086                 fprintf(stderr,
3087                     "error: setquirk: cannot find class/name combination");
3088                 return;
3089         }
3090         /* not found: add */
3091         if (quirks_size == 0 || quirks == NULL) {
3092                 quirks_size = 4;
3093                 DNPRINTF(SWM_D_QUIRK, "setquirk: init list %d\n", quirks_size);
3094                 quirks = malloc((size_t)quirks_size * sizeof(struct quirk));
3095                 if (!quirks) {
3096                         fprintf(stderr, "setquirk: malloc failed\n");
3097                         perror(" failed");
3098                         quit(NULL, NULL);
3099                 }
3100         } else if (quirks_length == quirks_size) {
3101                 quirks_size *= 2;
3102                 DNPRINTF(SWM_D_QUIRK, "setquirk: grow list %d\n", quirks_size);
3103                 quirks = realloc(quirks, (size_t)quirks_size * sizeof(struct quirk));
3104                 if (!quirks) {
3105                         fprintf(stderr, "setquirk: realloc failed\n");
3106                         perror(" failed");
3107                         quit(NULL, NULL);
3108                 }
3109         }
3110         if (quirks_length < quirks_size) {
3111                 DNPRINTF(SWM_D_QUIRK, "setquirk: add %d\n", quirks_length);
3112                 j = quirks_length++;
3113                 quirks[j].class = strdup(class);
3114                 quirks[j].name = strdup(name);
3115                 quirks[j].quirk = quirk;
3116         } else {
3117                 fprintf(stderr, "quirks array problem?\n");
3118                 if (!quirks) {
3119                         fprintf(stderr, "quirks array problem!\n");
3120                         quit(NULL, NULL);
3121                 }
3122         }
3123 }
3124
3125 int
3126 setconfquirk(char *selector, char *value, int flags)
3127 {
3128         char                    *cp, *class, *name;
3129         int                     retval;
3130         unsigned long           quirks;
3131         if (selector == NULL)
3132                 return (0);
3133         if ((cp = strchr(selector, ':')) == NULL)
3134                 return (0);
3135         *cp = '\0';
3136         class = selector;
3137         name = cp + 1;
3138         if ((retval = parsequirks(value, &quirks)) == 0)
3139                 setquirk(class, name, quirks);
3140         return (retval);
3141 }
3142
3143 void
3144 setup_quirks(void)
3145 {
3146         setquirk("MPlayer",             "xv",           SWM_Q_FLOAT | SWM_Q_FULLSCREEN);
3147         setquirk("OpenOffice.org 2.4",  "VCLSalFrame",  SWM_Q_FLOAT);
3148         setquirk("OpenOffice.org 3.0",  "VCLSalFrame",  SWM_Q_FLOAT);
3149         setquirk("Firefox-bin",         "firefox-bin",  SWM_Q_TRANSSZ);
3150         setquirk("Firefox",             "Dialog",       SWM_Q_FLOAT);
3151         setquirk("Gimp",                "gimp",         SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3152         setquirk("XTerm",               "xterm",        SWM_Q_XTERM_FONTADJ);
3153         setquirk("xine",                "Xine Window",  SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3154         setquirk("Xitk",                "Xitk Combo",   SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3155         setquirk("xine",                "xine Panel",   SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3156         setquirk("Xitk",                "Xine Window",  SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3157         setquirk("xine",                "xine Video Fullscreen Window", SWM_Q_FULLSCREEN | SWM_Q_FLOAT);
3158         setquirk("pcb",                 "pcb",          SWM_Q_FLOAT);
3159 }
3160
3161 /* conf file stuff */
3162 #define SWM_CONF_FILE   "scrotwm.conf"
3163
3164 enum    { SWM_S_BAR_DELAY, SWM_S_BAR_ENABLED, SWM_S_STACK_ENABLED,
3165           SWM_S_CLOCK_ENABLED, SWM_S_CYCLE_EMPTY, SWM_S_CYCLE_VISIBLE,
3166           SWM_S_SS_ENABLED, SWM_S_TERM_WIDTH, SWM_S_TITLE_CLASS_ENABLED,
3167           SWM_S_TITLE_NAME_ENABLED, SWM_S_BAR_FONT, SWM_S_BAR_ACTION,
3168           SWM_S_SPAWN_TERM, SWM_S_SS_APP, SWM_S_DIALOG_RATIO };
3169
3170 int
3171 setconfvalue(char *selector, char *value, int flags)
3172 {
3173         switch (flags) {
3174         case SWM_S_BAR_DELAY:
3175                 bar_delay = atoi(value);
3176                 break;
3177         case SWM_S_BAR_ENABLED:
3178                 bar_enabled = atoi(value);
3179                 break;
3180         case SWM_S_STACK_ENABLED:
3181                 stack_enabled = atoi(value);
3182                 break;
3183         case SWM_S_CLOCK_ENABLED:
3184                 clock_enabled = atoi(value);
3185                 break;
3186         case SWM_S_CYCLE_EMPTY:
3187                 cycle_empty = atoi(value);
3188                 break;
3189         case SWM_S_CYCLE_VISIBLE:
3190                 cycle_visible = atoi(value);
3191                 break;
3192         case SWM_S_SS_ENABLED:
3193                 ss_enabled = atoi(value);
3194                 break;
3195         case SWM_S_TERM_WIDTH:
3196                 term_width = atoi(value);
3197                 break;
3198         case SWM_S_TITLE_CLASS_ENABLED:
3199                 title_class_enabled = atoi(value);
3200                 break;
3201         case SWM_S_TITLE_NAME_ENABLED:
3202                 title_name_enabled = atoi(value);
3203                 break;
3204         case SWM_S_BAR_FONT:
3205                 free(bar_fonts[0]);
3206                 if ((bar_fonts[0] = strdup(value)) == NULL)
3207                         err(1, "setconfvalue: bar_font");
3208                 break;
3209         case SWM_S_BAR_ACTION:
3210                 free(bar_argv[0]);
3211                 if ((bar_argv[0] = strdup(value)) == NULL)
3212                         err(1, "setconfvalue: bar_action");
3213                 break;
3214         case SWM_S_SPAWN_TERM:
3215                 free(spawn_term[0]);
3216                 if ((spawn_term[0] = strdup(value)) == NULL)
3217                         err(1, "setconfvalue: spawn_term");
3218                 break;
3219         case SWM_S_SS_APP:
3220                 break;
3221         case SWM_S_DIALOG_RATIO:
3222                 dialog_ratio = atof(value);
3223                 if (dialog_ratio > 1.0 || dialog_ratio <= .3)
3224                         dialog_ratio = .6;
3225                 break;
3226         default:
3227                 return (1);
3228         }
3229         return (0);
3230 }
3231
3232 int
3233 setconfmodkey(char *selector, char *value, int flags)
3234 {
3235         if (!strncasecmp(value, "Mod1", strlen("Mod1")))
3236                 update_modkey(Mod1Mask);
3237         else if (!strncasecmp(value, "Mod2", strlen("Mod2")))
3238                 update_modkey(Mod2Mask);
3239         else if (!strncasecmp(value, "Mod3", strlen("Mod3")))
3240                 update_modkey(Mod3Mask);
3241         else if (!strncasecmp(value, "Mod4", strlen("Mod4")))
3242                 update_modkey(Mod4Mask);
3243         else
3244                 return (1);
3245         return (0);
3246 }
3247
3248 int
3249 setconfcolor(char *selector, char *value, int flags)
3250 {
3251         setscreencolor(value, ((selector == NULL)?-1:atoi(selector)), flags);
3252         return (0);
3253 }
3254
3255 int
3256 setconfregion(char *selector, char *value, int flags)
3257 {
3258         custom_region(value);
3259         return (0);
3260 }
3261
3262 /* config options */
3263 struct config_option {
3264         char                    *optname;
3265         int (*func)(char*, char*, int);
3266         int funcflags;
3267 };
3268 struct config_option configopt[] = {
3269         { "bar_enabled",                setconfvalue,   SWM_S_BAR_ENABLED },
3270         { "bar_border",                 setconfcolor,   SWM_S_COLOR_BAR_BORDER },
3271         { "bar_color",                  setconfcolor,   SWM_S_COLOR_BAR },
3272         { "bar_font_color",             setconfcolor,   SWM_S_COLOR_BAR_FONT },
3273         { "bar_font",                   setconfvalue,   SWM_S_BAR_FONT },
3274         { "bar_action",                 setconfvalue,   SWM_S_BAR_ACTION },
3275         { "bar_delay",                  setconfvalue,   SWM_S_BAR_DELAY },
3276         { "bind",                       setconfbinding, 0 },
3277         { "stack_enabled",              setconfvalue,   SWM_S_STACK_ENABLED },
3278         { "clock_enabled",              setconfvalue,   SWM_S_CLOCK_ENABLED },
3279         { "color_focus",                setconfcolor,   SWM_S_COLOR_FOCUS },
3280         { "color_unfocus",              setconfcolor,   SWM_S_COLOR_UNFOCUS },
3281         { "cycle_empty",                setconfvalue,   SWM_S_CYCLE_EMPTY },
3282         { "cycle_visible",              setconfvalue,   SWM_S_CYCLE_VISIBLE },
3283         { "dialog_ratio",               setconfvalue,   SWM_S_DIALOG_RATIO },
3284         { "modkey",                     setconfmodkey,  0 },
3285         { "program",                    setconfspawn,   0 },
3286         { "quirk",                      setconfquirk,   0 },
3287         { "region",                     setconfregion,  0 },
3288         { "spawn_term",                 setconfvalue,   SWM_S_SPAWN_TERM },
3289         { "screenshot_enabled",         setconfvalue,   SWM_S_SS_ENABLED },
3290         { "screenshot_app",             setconfvalue,   SWM_S_SS_APP },
3291         { "term_width",                 setconfvalue,   SWM_S_TERM_WIDTH },
3292         { "title_class_enabled",        setconfvalue,   SWM_S_TITLE_CLASS_ENABLED },
3293         { "title_name_enabled",         setconfvalue,   SWM_S_TITLE_NAME_ENABLED }
3294 };
3295
3296
3297 int
3298 conf_load(char *filename)
3299 {
3300         FILE                    *config;
3301         char                    *line, *cp, *optsub, *optval;
3302         size_t                  linelen, lineno = 0;
3303         int                     wordlen, i, optind;
3304         struct config_option    *opt;
3305
3306         DNPRINTF(SWM_D_CONF, "conf_load begin\n");
3307
3308         if (filename == NULL) {
3309                 fprintf(stderr, "conf_load: no filename\n");
3310                 return (1);
3311         }
3312         if ((config = fopen(filename, "r")) == NULL) {
3313                 warn("conf_load: fopen");
3314                 return (1);
3315         }
3316
3317         while (!feof(config)) {
3318                 if ((line = fparseln(config, &linelen, &lineno, NULL, 0))
3319                     == NULL) {
3320                         if (ferror(config))
3321                                 err(1, "%s", filename);
3322                         else
3323                                 continue;
3324                 }
3325                 cp = line;
3326                 cp += strspn(cp, " \t\n"); /* eat whitespace */
3327                 if (cp[0] == '\0') {
3328                         /* empty line */
3329                         free(line);
3330                         continue;
3331                 }
3332                 /* get config option */
3333                 wordlen = strcspn(cp, "=[ \t\n");
3334                 if (wordlen == 0) {
3335                         warnx("%s: line %zd: no option found",
3336                             filename, lineno);
3337                         return (1);
3338                 }
3339                 optind = -1;
3340                 for (i = 0; i < LENGTH(configopt); i++) {
3341                         opt = &configopt[i];
3342                         if (!strncasecmp(cp, opt->optname, wordlen) &&
3343                             strlen(opt->optname) == wordlen) {
3344                                 optind = i;
3345                                 break;
3346                         }
3347                 }
3348                 if (optind == -1) {
3349                         warnx("%s: line %zd: unknown option %.*s",
3350                             filename, lineno, wordlen, cp);
3351                         return (1);
3352                 }
3353                 cp += wordlen;
3354                 cp += strspn(cp, " \t\n"); /* eat whitespace */
3355                 /* get [selector] if any */
3356                 optsub = NULL;
3357                 if (*cp == '[') {
3358                         cp++;
3359                         wordlen = strcspn(cp, "]");
3360                         if (*cp != ']') {
3361                                 if (wordlen == 0) {
3362                                         warnx("%s: line %zd: syntax error",
3363                                             filename, lineno);
3364                                         return (1);
3365                                 }
3366                                 asprintf(&optsub, "%.*s", wordlen, cp);
3367                         }
3368                         cp += wordlen;
3369                         cp += strspn(cp, "] \t\n"); /* eat trailing */
3370                 }
3371                 cp += strspn(cp, "= \t\n"); /* eat trailing */
3372                 /* get RHS value */
3373                 optval = strdup(cp);
3374                 /* call function to deal with it all */
3375                 if (configopt[optind].func(optsub, optval,
3376                     configopt[optind].funcflags) != 0) {
3377                         fprintf(stderr, "%s line %zd: %s\n",
3378                             filename, lineno, line);
3379                         errx(1, "%s: line %zd: invalid data for %s",
3380                             filename, lineno, configopt[optind].optname);
3381                 }
3382                 free(optval);
3383                 free(optsub);
3384                 free(line);
3385         }
3386
3387         fclose(config);
3388         DNPRINTF(SWM_D_CONF, "conf_load end\n");
3389
3390         return (0);
3391 }
3392
3393 struct ws_win *
3394 manage_window(Window id)
3395 {
3396         Window                  trans = 0;
3397         struct workspace        *ws;
3398         struct ws_win           *win, *ww, *parent;
3399         int                     format, i, ws_idx, n, border_me = 0;
3400         unsigned long           nitems, bytes;
3401         Atom                    ws_idx_atom = 0, type;
3402         Atom                    *prot = NULL, *pp;
3403         unsigned char           ws_idx_str[SWM_PROPLEN], *prop = NULL;
3404         struct swm_region       *r;
3405         long                    mask;
3406         const char              *errstr;
3407         XWindowChanges          wc;
3408
3409         if ((win = find_window(id)) != NULL)
3410                 return (win);   /* already being managed */
3411
3412         /* see if we are on the unmanaged list */
3413         if ((win = find_unmanaged_window(id)) != NULL) {
3414                 DNPRINTF(SWM_D_MISC, "manage previously unmanaged window "
3415                     "%lu\n", win->id);
3416                 TAILQ_REMOVE(&win->ws->unmanagedlist, win, entry);
3417                 TAILQ_INSERT_TAIL(&win->ws->winlist, win, entry);
3418                 return (win);
3419         }
3420
3421         if ((win = calloc(1, sizeof(struct ws_win))) == NULL)
3422                 errx(1, "calloc: failed to allocate memory for new window");
3423
3424         /* Get all the window data in one shot */
3425         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
3426         if (ws_idx_atom)
3427                 XGetWindowProperty(display, id, ws_idx_atom, 0, SWM_PROPLEN,
3428                     False, XA_STRING, &type, &format, &nitems, &bytes, &prop);
3429         XGetWindowAttributes(display, id, &win->wa);
3430         XGetWMNormalHints(display, id, &win->sh, &mask);
3431         XGetTransientForHint(display, id, &trans);
3432         if (trans) {
3433                 win->transient = trans;
3434                 parent = find_window(win->transient);
3435                 if (parent)
3436                         parent->child_trans = win;
3437                 DNPRINTF(SWM_D_MISC, "manage_window: win %u transient %u\n",
3438                     (unsigned)win->id, win->transient);
3439         }
3440         /* get supported protocols */
3441         if (XGetWMProtocols(display, id, &prot, &n)) {
3442                 for (i = 0, pp = prot; i < n; i++, pp++) {
3443                         if (*pp == takefocus)
3444                                 win->take_focus = 1;
3445                         if (*pp == adelete)
3446                                 win->can_delete = 1;
3447                 }
3448                 if (prot)
3449                         XFree(prot);
3450         }
3451
3452         /*
3453          * Figure out where to put the window. If it was previously assigned to
3454          * a workspace (either by spawn() or manually moving), and isn't
3455          * transient, * put it in the same workspace
3456          */
3457         r = root_to_region(win->wa.root);
3458         if (prop && win->transient == 0) {
3459                 DNPRINTF(SWM_D_PROP, "got property _SWM_WS=%s\n", prop);
3460                 ws_idx = strtonum(prop, 0, 9, &errstr);
3461                 if (errstr) {
3462                         DNPRINTF(SWM_D_EVENT, "window idx is %s: %s",
3463                             errstr, prop);
3464                 }
3465                 ws = &r->s->ws[ws_idx];
3466         } else {
3467                 ws = r->ws;
3468                 /* this should launch transients in the same ws as parent */
3469                 if (id && trans)
3470                         if ((ww = find_window(trans)) != NULL)
3471                                 if (ws->r) {
3472                                         ws = ww->ws;
3473                                         if (ww->ws->r)
3474                                                 r = ww->ws->r;
3475                                         else
3476                                                 fprintf(stderr,
3477                                                     "fix this bug mcbride\n");
3478                                         border_me = 1;
3479                                 }
3480         }
3481
3482         /* set up the window layout */
3483         win->id = id;
3484         win->ws = ws;
3485         win->s = r->s;  /* this never changes */
3486         TAILQ_INSERT_TAIL(&ws->winlist, win, entry);
3487
3488         win->g.w = win->wa.width;
3489         win->g.h = win->wa.height;
3490         win->g.x = win->wa.x;
3491         win->g.y = win->wa.y;
3492
3493         /* Set window properties so we can remember this after reincarnation */
3494         if (ws_idx_atom && prop == NULL &&
3495             snprintf(ws_idx_str, SWM_PROPLEN, "%d", ws->idx) < SWM_PROPLEN) {
3496                 DNPRINTF(SWM_D_PROP, "setting property _SWM_WS to %s\n",
3497                     ws_idx_str);
3498                 XChangeProperty(display, win->id, ws_idx_atom, XA_STRING, 8,
3499                     PropModeReplace, ws_idx_str, SWM_PROPLEN);
3500         }
3501         XFree(prop);
3502
3503         if (XGetClassHint(display, win->id, &win->ch)) {
3504                 DNPRINTF(SWM_D_CLASS, "class: %s name: %s\n",
3505                     win->ch.res_class, win->ch.res_name);
3506
3507                 /* java is retarded so treat it special */
3508                 if (strstr(win->ch.res_name, "sun-awt"))
3509                         win->java = 1;
3510
3511                 for (i = 0; i < quirks_length; i++){
3512                         if (!strcmp(win->ch.res_class, quirks[i].class) &&
3513                             !strcmp(win->ch.res_name, quirks[i].name)) {
3514                                 DNPRINTF(SWM_D_CLASS, "found: %s name: %s\n",
3515                                     win->ch.res_class, win->ch.res_name);
3516                                 if (quirks[i].quirk & SWM_Q_FLOAT)
3517                                         win->floating = 1;
3518                                 win->quirks = quirks[i].quirk;
3519                         }
3520                 }
3521         }
3522
3523         /* alter window position if quirky */
3524         if (win->quirks & SWM_Q_ANYWHERE) {
3525                 win->manual = 1; /* don't center the quirky windows */
3526                 bzero(&wc, sizeof wc);
3527                 mask = 0;
3528                 if (win->g.y < bar_height) {
3529                         win->g.y = wc.y = bar_height;
3530                         mask |= CWY;
3531                 }
3532                 if (win->g.w + win->g.x > WIDTH(r)) {
3533                         win->g.x = wc.x = WIDTH(r) - win->g.w - 2;
3534                         mask |= CWX;
3535                 }
3536                 border_me = 1;
3537         }
3538
3539         /* Reset font sizes (the bruteforce way; no default keybinding). */
3540         if (win->quirks & SWM_Q_XTERM_FONTADJ) {
3541                 for (i = 0; i < SWM_MAX_FONT_STEPS; i++)
3542                         fake_keypress(win, XK_KP_Subtract, ShiftMask);
3543                 for (i = 0; i < SWM_MAX_FONT_STEPS; i++)
3544                         fake_keypress(win, XK_KP_Add, ShiftMask);
3545         }
3546
3547         /* border me */
3548         if (border_me) {
3549                 bzero(&wc, sizeof wc);
3550                 wc.border_width = 1;
3551                 mask = CWBorderWidth;
3552                 XConfigureWindow(display, win->id, mask, &wc);
3553                 configreq_win(win);
3554         }
3555
3556         XSelectInput(display, id, EnterWindowMask | FocusChangeMask |
3557             PropertyChangeMask | StructureNotifyMask);
3558
3559         set_win_state(win, NormalState);
3560
3561         /* floaters need to be mapped if they are in the current workspace */
3562         if ((win->floating || win->transient) && (ws->idx == r->ws->idx))
3563                 XMapRaised(display, win->id);
3564
3565         return (win);
3566 }
3567
3568 void
3569 free_window(struct ws_win *win)
3570 {
3571         DNPRINTF(SWM_D_MISC, "free_window:  %lu\n", win->id);
3572
3573         if (win == NULL)
3574                 return;
3575
3576         /* needed for restart wm */
3577         set_win_state(win, WithdrawnState);
3578
3579         TAILQ_REMOVE(&win->ws->unmanagedlist, win, entry);
3580
3581         if (win->ch.res_class)
3582                 XFree(win->ch.res_class);
3583         if (win->ch.res_name)
3584                 XFree(win->ch.res_name);
3585         free(win);
3586 }
3587
3588 void
3589 unmanage_window(struct ws_win *win)
3590 {
3591         struct ws_win           *parent;
3592
3593         if (win == NULL)
3594                 return;
3595
3596         DNPRINTF(SWM_D_MISC, "unmanage_window:  %lu\n", win->id);
3597
3598         if (win->transient) {
3599                 parent = find_window(win->transient);
3600                 if (parent)
3601                         parent->child_trans = NULL;
3602         }
3603
3604         TAILQ_REMOVE(&win->ws->winlist, win, entry);
3605         TAILQ_INSERT_TAIL(&win->ws->unmanagedlist, win, entry);
3606 }
3607
3608 void
3609 focus_magic(struct ws_win *win)
3610 {
3611         if (win->child_trans) {
3612                 /* win = parent & has a transient so focus on that */
3613                 if (win->java) {
3614                         focus_win(win->child_trans);
3615                         if (win->child_trans->take_focus)
3616                                 client_msg(win, takefocus);
3617                 } else {
3618                         focus_win(win->child_trans);
3619                         if (win->child_trans->take_focus)
3620                                 client_msg(win->child_trans, takefocus);
3621                 }
3622         } else {
3623                 /* regular focus */
3624                 focus_win(win);
3625                 if (win->take_focus)
3626                         client_msg(win, takefocus);
3627         }
3628 }
3629
3630 Bool
3631 destroy_notify_cb(Display *d, XEvent *e, char *arg)
3632 {
3633         struct ws_win           *win = (struct ws_win *)arg;
3634         if (win && win->id == e->xany.window && e->xany.type == DestroyNotify)
3635                         return (True);
3636         return (False);
3637 }
3638
3639 void
3640 expose(XEvent *e)
3641 {
3642         DNPRINTF(SWM_D_EVENT, "expose: window: %lu\n", e->xexpose.window);
3643 }
3644
3645 void
3646 keypress(XEvent *e)
3647 {
3648         unsigned int            i;
3649         KeySym                  keysym;
3650         XKeyEvent               *ev = &e->xkey;
3651
3652         DNPRINTF(SWM_D_EVENT, "keypress: window: %lu\n", ev->window);
3653
3654         keysym = XKeycodeToKeysym(display, (KeyCode)ev->keycode, 0);
3655         for (i = 0; i < keys_length; i++)
3656                 if (keysym == keys[i].keysym
3657                    && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
3658                    && keyfuncs[keys[i].funcid].func) {
3659                         if (keys[i].funcid == kf_spawn_custom)
3660                                 spawn_custom(
3661                                     root_to_region(ev->root),
3662                                     &(keyfuncs[keys[i].funcid].args),
3663                                     keys[i].spawn_name
3664                                     );
3665                         else
3666                                 keyfuncs[keys[i].funcid].func(
3667                                     root_to_region(ev->root),
3668                                     &(keyfuncs[keys[i].funcid].args)
3669                                     );
3670                 }
3671 }
3672
3673 void
3674 buttonpress(XEvent *e)
3675 {
3676         XButtonPressedEvent     *ev = &e->xbutton;
3677
3678         struct ws_win           *win;
3679         int                     i, action;
3680
3681         DNPRINTF(SWM_D_EVENT, "buttonpress: window: %lu\n", ev->window);
3682
3683         action = root_click;
3684         if ((win = find_window(ev->window)) == NULL)
3685                 return;
3686
3687         focus_magic(win);
3688         action = client_click;
3689
3690         for (i = 0; i < LENGTH(buttons); i++)
3691                 if (action == buttons[i].action && buttons[i].func &&
3692                     buttons[i].button == ev->button &&
3693                     CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
3694                         buttons[i].func(win, &buttons[i].args);
3695 }
3696
3697 void
3698 configurerequest(XEvent *e)
3699 {
3700         XConfigureRequestEvent  *ev = &e->xconfigurerequest;
3701         struct ws_win           *win;
3702         int                     new = 0;
3703         XWindowChanges          wc;
3704
3705         if ((win = find_window(ev->window)) == NULL)
3706                 new = 1;
3707
3708         if (new) {
3709                 DNPRINTF(SWM_D_EVENT, "configurerequest: new window: %lu\n",
3710                     ev->window);
3711                 bzero(&wc, sizeof wc);
3712                 wc.x = ev->x;
3713                 wc.y = ev->y;
3714                 wc.width = ev->width;
3715                 wc.height = ev->height;
3716                 wc.border_width = ev->border_width;
3717                 wc.sibling = ev->above;
3718                 wc.stack_mode = ev->detail;
3719                 XConfigureWindow(display, ev->window, ev->value_mask, &wc);
3720         } else {
3721                 DNPRINTF(SWM_D_EVENT, "configurerequest: change window: %lu\n",
3722                     ev->window);
3723                 if (win->floating) {
3724                         if (ev->value_mask & CWX)
3725                                 win->g.x = ev->x;
3726                         if (ev->value_mask & CWY)
3727                                 win->g.y = ev->y;
3728                         if (ev->value_mask & CWWidth)
3729                                 win->g.w = ev->width;
3730                         if (ev->value_mask & CWHeight)
3731                                 win->g.h = ev->height;
3732                         if (win->ws->r != NULL) {
3733                                 /* this seems to be full screen */
3734                                 if (win->g.w >= WIDTH(win->ws->r)) {
3735                                         win->g.x = 0;
3736                                         win->g.w = WIDTH(win->ws->r);
3737                                         ev->value_mask |= CWX | CWWidth;
3738                                 }
3739                                 if (win->g.h >= HEIGHT(win->ws->r)) {
3740                                         /* kill border */
3741                                         win->g.y = 0;
3742                                         win->g.h = HEIGHT(win->ws->r);
3743                                         ev->value_mask |= CWY | CWHeight;
3744                                 }
3745                         }
3746                         XMoveResizeWindow(display, win->id,
3747                             win->g.x, win->g.y, win->g.w, win->g.h);
3748                         if ((ev->value_mask & (CWX | CWY)) &&
3749                             !(ev->value_mask & (CWWidth | CWHeight)))
3750                                 config_win(win);
3751                 } else
3752                         config_win(win);
3753         }
3754 }
3755
3756 void
3757 configurenotify(XEvent *e)
3758 {
3759         struct ws_win           *win;
3760         long                    mask;
3761
3762         DNPRINTF(SWM_D_EVENT, "configurenotify: window: %lu\n",
3763             e->xconfigure.window);
3764
3765         win = find_window(e->xconfigure.window);
3766         if (win) {
3767                 XGetWMNormalHints(display, win->id, &win->sh, &mask);
3768                 adjust_font(win);
3769                 if (font_adjusted)
3770                         stack();
3771         }
3772 }
3773
3774 void
3775 destroynotify(XEvent *e)
3776 {
3777         struct ws_win           *win, *w, *wn, *winfocus = NULL;
3778         struct workspace        *ws;
3779         struct ws_win_list      *wl;
3780         XDestroyWindowEvent     *ev = &e->xdestroywindow;
3781         int                     unmanaged = 0;
3782
3783         DNPRINTF(SWM_D_EVENT, "destroynotify: window %lu\n", ev->window);
3784
3785         if ((win = find_window(ev->window)) == NULL) {
3786                 if ((win = find_unmanaged_window(ev->window)) == NULL)
3787                         return;
3788                 unmanaged = 1;
3789         }
3790
3791         /* find a window to focus */
3792         ws = win->ws;
3793         wl = &ws->winlist;
3794
3795         for (w = TAILQ_FIRST(&ws->winlist); w != TAILQ_END(&ws->winlist); w = wn) {
3796                 wn = TAILQ_NEXT(w, entry);
3797                 if (win == w)
3798                         continue; /* can't happen but oh well */
3799
3800                 if (getstate(w->id) != -1)
3801                         continue;
3802                 unmanage_window(w);
3803         }
3804         /* if we are transient give focus to parent */
3805         if (win->transient)
3806                 winfocus = find_window(win->transient);
3807         else if (ws->focus == win) {
3808                 /* if in max_stack try harder */
3809                 if (ws->cur_layout->flags & SWM_L_FOCUSPREV) {
3810                         if (win != ws->focus_prev)
3811                                 winfocus = ws->focus_prev;
3812                         else if (win != ws->focus)
3813                                 winfocus = ws->focus;
3814                 }
3815
3816                 /* fallback and normal handling */
3817                 if (winfocus == NULL) {
3818                         if (TAILQ_FIRST(wl) == win)
3819                                 winfocus = TAILQ_NEXT(win, entry);
3820                         else {
3821                                 winfocus = TAILQ_PREV(ws->focus,
3822                                     ws_win_list, entry);
3823                                 if (winfocus == NULL)
3824                                         winfocus = TAILQ_LAST(wl,
3825                                             ws_win_list);
3826                         }
3827                 }
3828         }
3829         if (unmanaged == 0)
3830                 unmanage_window(win);
3831         free_window(win);
3832
3833         ignore_enter = 1;
3834         stack();
3835         if (winfocus)
3836                 focus_win(winfocus);
3837         ignore_enter = 0;
3838 }
3839
3840 void
3841 enternotify(XEvent *e)
3842 {
3843         XCrossingEvent          *ev = &e->xcrossing;
3844         struct ws_win           *win;
3845
3846         DNPRINTF(SWM_D_EVENT, "enternotify: window: %lu\n", ev->window);
3847
3848         if (ignore_enter) {
3849                 /* eat event(r) to prevent autofocus */
3850                 ignore_enter = 0;
3851                 return;
3852         }
3853         /*
3854          * happens when a window is created or destroyed and the border
3855          * crosses the mouse pointer
3856          */
3857         if (QLength(display))
3858                 return;
3859
3860         if ((win = find_window(ev->window)) == NULL)
3861                 return;
3862
3863         focus_magic(win);
3864 }
3865
3866 void
3867 focusin(XEvent *e)
3868 {
3869         DNPRINTF(SWM_D_EVENT, "focusin: window: %lu\n", e->xfocus.window);
3870 }
3871
3872 void
3873 focusout(XEvent *e)
3874 {
3875         DNPRINTF(SWM_D_EVENT, "focusout: window: %lu\n", e->xfocus.window);
3876 }
3877
3878 void
3879 mapnotify(XEvent *e)
3880 {
3881         struct ws_win           *win;
3882         XMapEvent               *ev = &e->xmap;
3883
3884         DNPRINTF(SWM_D_EVENT, "mapnotify: window: %lu\n", ev->window);
3885
3886         win = manage_window(ev->window);
3887         if (win)
3888                 set_win_state(win, NormalState);
3889 }
3890
3891 void
3892 mappingnotify(XEvent *e)
3893 {
3894         XMappingEvent           *ev = &e->xmapping;
3895
3896         XRefreshKeyboardMapping(ev);
3897         if (ev->request == MappingKeyboard)
3898                 grabkeys();
3899 }
3900
3901 void
3902 maprequest(XEvent *e)
3903 {
3904         struct ws_win           *win;
3905         struct swm_region       *r;
3906
3907         XMapRequestEvent        *ev = &e->xmaprequest;
3908         XWindowAttributes       wa;
3909
3910         DNPRINTF(SWM_D_EVENT, "maprequest: window: %lu\n",
3911             e->xmaprequest.window);
3912
3913         if (!XGetWindowAttributes(display, ev->window, &wa))
3914                 return;
3915         if (wa.override_redirect)
3916                 return;
3917
3918         win = manage_window(e->xmaprequest.window);
3919         if (win == NULL)
3920                 return; /* can't happen */
3921
3922         ignore_enter = 1;
3923         stack();
3924         ignore_enter = 0;
3925
3926         /* make new win focused */
3927         r = root_to_region(win->wa.root);
3928         if (win->ws == r->ws)
3929                 focus_win(win);
3930 }
3931
3932 void
3933 propertynotify(XEvent *e)
3934 {
3935         struct ws_win           *win;
3936         XPropertyEvent          *ev = &e->xproperty;
3937
3938         DNPRINTF(SWM_D_EVENT, "propertynotify: window: %lu\n",
3939             ev->window);
3940
3941         if (ev->state == PropertyDelete)
3942                 return; /* ignore */
3943         win = find_window(ev->window);
3944         if (win == NULL)
3945                 return;
3946
3947         switch (ev->atom) {
3948         case XA_WM_NORMAL_HINTS:
3949 #if 0
3950                 long            mask;
3951                 XGetWMNormalHints(display, win->id, &win->sh, &mask);
3952                 fprintf(stderr, "normal hints: flag 0x%x\n", win->sh.flags);
3953                 if (win->sh.flags & PMinSize) {
3954                         win->g.w = win->sh.min_width;
3955                         win->g.h = win->sh.min_height;
3956                         fprintf(stderr, "min %d %d\n", win->g.w, win->g.h);
3957                 }
3958                 XMoveResizeWindow(display, win->id,
3959                     win->g.x, win->g.y, win->g.w, win->g.h);
3960 #endif
3961                 break;
3962         default:
3963                 break;
3964         }
3965 }
3966
3967 void
3968 unmapnotify(XEvent *e)
3969 {
3970         struct ws_win           *win, *winfocus = NULL;
3971         struct workspace        *ws;
3972
3973         DNPRINTF(SWM_D_EVENT, "unmapnotify: window: %lu\n", e->xunmap.window);
3974
3975         /* determine if we need to help unmanage this window */
3976         win = find_window(e->xunmap.window);
3977         if (win == NULL)
3978                 return;
3979
3980         /* java can not deal with this heuristic */
3981         if (win->java)
3982                 return;
3983
3984         if (getstate(e->xunmap.window) == NormalState) {
3985                 /*
3986                  * this window does not have a destroy event but but it is no
3987                  * longer visible due to the app unmapping it so unmanage it
3988                  */
3989                 ws = win->ws;
3990                 /* if we are max_stack try harder to focus on something */
3991                 if (ws->cur_layout->flags & SWM_L_FOCUSPREV) {
3992                         if (win->transient)
3993                                 winfocus = find_window(win->transient);
3994                         else if (win != ws->focus_prev)
3995                                 winfocus = ws->focus_prev;
3996                         else if (win != ws->focus)
3997                                 winfocus = ws->focus;
3998                 }
3999
4000                 /* normal and fallback if haven't found anything to focus on */
4001                 if (winfocus == NULL) {
4002                         winfocus = TAILQ_PREV(win, ws_win_list, entry);
4003                         if (TAILQ_FIRST(&ws->winlist) == win)
4004                                 winfocus = TAILQ_NEXT(win, entry);
4005                         else {
4006                                 if (ws->focus)
4007                                         winfocus = TAILQ_PREV(ws->focus,
4008                                             ws_win_list, entry);
4009                                 if (winfocus == NULL)
4010                                         winfocus = TAILQ_LAST(&ws->winlist,
4011                                             ws_win_list);
4012                         }
4013                 }
4014
4015                 /* trash window and refocus */
4016                 unmanage_window(win);
4017                 ignore_enter = 1;
4018                 stack();
4019                 focus_win(winfocus);
4020                 ignore_enter = 0;
4021         }
4022 }
4023
4024 void
4025 visibilitynotify(XEvent *e)
4026 {
4027         int                     i;
4028         struct swm_region       *r;
4029
4030         DNPRINTF(SWM_D_EVENT, "visibilitynotify: window: %lu\n",
4031             e->xvisibility.window);
4032         if (e->xvisibility.state == VisibilityUnobscured)
4033                 for (i = 0; i < ScreenCount(display); i++)
4034                         TAILQ_FOREACH(r, &screens[i].rl, entry)
4035                                 if (e->xvisibility.window == r->bar_window)
4036                                         bar_update();
4037 }
4038
4039 int
4040 xerror_start(Display *d, XErrorEvent *ee)
4041 {
4042         other_wm = 1;
4043         return (-1);
4044 }
4045
4046 int
4047 xerror(Display *d, XErrorEvent *ee)
4048 {
4049         /* fprintf(stderr, "error: %p %p\n", display, ee); */
4050         return (-1);
4051 }
4052
4053 int
4054 active_wm(void)
4055 {
4056         other_wm = 0;
4057         xerrorxlib = XSetErrorHandler(xerror_start);
4058
4059         /* this causes an error if some other window manager is running */
4060         XSelectInput(display, DefaultRootWindow(display),
4061             SubstructureRedirectMask);
4062         XSync(display, False);
4063         if (other_wm)
4064                 return (1);
4065
4066         XSetErrorHandler(xerror);
4067         XSync(display, False);
4068         return (0);
4069 }
4070
4071 void
4072 new_region(struct swm_screen *s, int x, int y, int w, int h)
4073 {
4074         struct swm_region       *r, *n;
4075         struct workspace        *ws = NULL;
4076         int                     i;
4077
4078         DNPRINTF(SWM_D_MISC, "new region: screen[%d]:%dx%d+%d+%d\n",
4079              s->idx, w, h, x, y);
4080
4081         /* remove any conflicting regions */
4082         n = TAILQ_FIRST(&s->rl);
4083         while (n) {
4084                 r = n;
4085                 n = TAILQ_NEXT(r, entry);
4086                 if (X(r) < (x + w) &&
4087                     (X(r) + WIDTH(r)) > x &&
4088                     Y(r) < (y + h) &&
4089                     (Y(r) + HEIGHT(r)) > y) {
4090                         XDestroyWindow(display, r->bar_window);
4091                         TAILQ_REMOVE(&s->rl, r, entry);
4092                         TAILQ_INSERT_TAIL(&s->orl, r, entry);
4093                 }
4094         }
4095
4096         /* search old regions for one to reuse */
4097
4098         /* size + location match */
4099         TAILQ_FOREACH(r, &s->orl, entry)
4100                 if (X(r) == x && Y(r) == y &&
4101                     HEIGHT(r) == h && WIDTH(r) == w)
4102                         break;
4103
4104         /* size match */
4105         TAILQ_FOREACH(r, &s->orl, entry)
4106                 if (HEIGHT(r) == h && WIDTH(r) == w)
4107                         break;
4108
4109         if (r != NULL) {
4110                 TAILQ_REMOVE(&s->orl, r, entry);
4111                 /* try to use old region's workspace */
4112                 if (r->ws->r == NULL)
4113                         ws = r->ws;
4114         } else
4115                 if ((r = calloc(1, sizeof(struct swm_region))) == NULL)
4116                         errx(1, "calloc: failed to allocate memory for screen");
4117
4118         /* if we don't have a workspace already, find one */
4119         if (ws == NULL) {
4120                 for (i = 0; i < SWM_WS_MAX; i++)
4121                         if (s->ws[i].r == NULL) {
4122                                 ws = &s->ws[i];
4123                                 break;
4124                         }
4125         }
4126
4127         if (ws == NULL)
4128                 errx(1, "no free workspaces\n");
4129
4130         X(r) = x;
4131         Y(r) = y;
4132         WIDTH(r) = w;
4133         HEIGHT(r) = h;
4134         r->s = s;
4135         r->ws = ws;
4136         ws->r = r;
4137         TAILQ_INSERT_TAIL(&s->rl, r, entry);
4138 }
4139
4140 void
4141 scan_xrandr(int i)
4142 {
4143 #ifdef SWM_XRR_HAS_CRTC
4144         XRRCrtcInfo             *ci;
4145         XRRScreenResources      *sr;
4146         int                     c;
4147         int                     ncrtc = 0;
4148 #endif /* SWM_XRR_HAS_CRTC */
4149         struct swm_region       *r;
4150
4151
4152         if (i >= ScreenCount(display))
4153                 errx(1, "invalid screen");
4154
4155         /* remove any old regions */
4156         while ((r = TAILQ_FIRST(&screens[i].rl)) != NULL) {
4157                 r->ws->old_r = r->ws->r = NULL;
4158                 XDestroyWindow(display, r->bar_window);
4159                 TAILQ_REMOVE(&screens[i].rl, r, entry);
4160                 TAILQ_INSERT_TAIL(&screens[i].orl, r, entry);
4161         }
4162
4163         /* map virtual screens onto physical screens */
4164 #ifdef SWM_XRR_HAS_CRTC
4165         outputs = 0;
4166         if (xrandr_support) {
4167                 sr = XRRGetScreenResources(display, screens[i].root);
4168                 if (sr == NULL)
4169                         new_region(&screens[i], 0, 0,
4170                             DisplayWidth(display, i),
4171                             DisplayHeight(display, i));
4172                 else
4173                         ncrtc = sr->ncrtc;
4174
4175                 for (c = 0, ci = NULL; c < ncrtc; c++) {
4176                         ci = XRRGetCrtcInfo(display, sr, sr->crtcs[c]);
4177                         if (ci->noutput == 0)
4178                                 continue;
4179                         outputs++;
4180
4181                         if (ci != NULL && ci->mode == None)
4182                                 new_region(&screens[i], 0, 0,
4183                                     DisplayWidth(display, i),
4184                                     DisplayHeight(display, i));
4185                         else
4186                                 new_region(&screens[i],
4187                                     ci->x, ci->y, ci->width, ci->height);
4188                 }
4189                 if (ci)
4190                         XRRFreeCrtcInfo(ci);
4191                 XRRFreeScreenResources(sr);
4192         } else
4193 #endif /* SWM_XRR_HAS_CRTC */
4194         {
4195                 new_region(&screens[i], 0, 0, DisplayWidth(display, i),
4196                     DisplayHeight(display, i));
4197         }
4198 }
4199
4200 void
4201 screenchange(XEvent *e) {
4202         XRRScreenChangeNotifyEvent      *xe = (XRRScreenChangeNotifyEvent *)e;
4203         struct swm_region               *r;
4204         int                             i;
4205
4206         DNPRINTF(SWM_D_EVENT, "screenchange: %lu\n", xe->root);
4207
4208         if (!XRRUpdateConfiguration(e))
4209                 return;
4210
4211         /* silly event doesn't include the screen index */
4212         for (i = 0; i < ScreenCount(display); i++)
4213                 if (screens[i].root == xe->root)
4214                         break;
4215         if (i >= ScreenCount(display))
4216                 errx(1, "screenchange: screen not found\n");
4217
4218         /* brute force for now, just re-enumerate the regions */
4219         scan_xrandr(i);
4220
4221         /* add bars to all regions */
4222         for (i = 0; i < ScreenCount(display); i++)
4223                 TAILQ_FOREACH(r, &screens[i].rl, entry)
4224                         bar_setup(r);
4225         stack();
4226 }
4227
4228 void
4229 setup_screens(void)
4230 {
4231         Window                  d1, d2, *wins = NULL;
4232         XWindowAttributes       wa;
4233         unsigned int            no;
4234         int                     i, j, k;
4235         int                     errorbase, major, minor;
4236         struct workspace        *ws;
4237         int                     ws_idx_atom;
4238         long                    state, manage;
4239
4240         if ((screens = calloc(ScreenCount(display),
4241              sizeof(struct swm_screen))) == NULL)
4242                 errx(1, "calloc: screens");
4243
4244         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
4245
4246         /* initial Xrandr setup */
4247         xrandr_support = XRRQueryExtension(display,
4248             &xrandr_eventbase, &errorbase);
4249         if (xrandr_support)
4250                 if (XRRQueryVersion(display, &major, &minor) && major < 1)
4251                         xrandr_support = 0;
4252
4253         /* map physical screens */
4254         for (i = 0; i < ScreenCount(display); i++) {
4255                 DNPRINTF(SWM_D_WS, "setup_screens: init screen %d\n", i);
4256                 screens[i].idx = i;
4257                 TAILQ_INIT(&screens[i].rl);
4258                 TAILQ_INIT(&screens[i].orl);
4259                 screens[i].root = RootWindow(display, i);
4260
4261                 /* set default colors */
4262                 setscreencolor("red", i + 1, SWM_S_COLOR_FOCUS);
4263                 setscreencolor("rgb:88/88/88", i + 1, SWM_S_COLOR_UNFOCUS);
4264                 setscreencolor("rgb:00/80/80", i + 1, SWM_S_COLOR_BAR_BORDER);
4265                 setscreencolor("black", i + 1, SWM_S_COLOR_BAR);
4266                 setscreencolor("rgb:a0/a0/a0", i + 1, SWM_S_COLOR_BAR_FONT);
4267
4268                 /* init all workspaces */
4269                 /* XXX these should be dynamically allocated too */
4270                 for (j = 0; j < SWM_WS_MAX; j++) {
4271                         ws = &screens[i].ws[j];
4272                         ws->idx = j;
4273                         ws->focus = NULL;
4274                         ws->r = NULL;
4275                         ws->old_r = NULL;
4276                         TAILQ_INIT(&ws->winlist);
4277                         TAILQ_INIT(&ws->unmanagedlist);
4278
4279                         for (k = 0; layouts[k].l_stack != NULL; k++)
4280                                 if (layouts[k].l_config != NULL)
4281                                         layouts[k].l_config(ws,
4282                                             SWM_ARG_ID_STACKINIT);
4283                         ws->cur_layout = &layouts[0];
4284                 }
4285                 /* grab existing windows (before we build the bars)*/
4286                 if (!XQueryTree(display, screens[i].root, &d1, &d2, &wins, &no))
4287                         continue;
4288
4289                 scan_xrandr(i);
4290
4291                 if (xrandr_support)
4292                         XRRSelectInput(display, screens[i].root,
4293                             RRScreenChangeNotifyMask);
4294
4295                 /* attach windows to a region */
4296                 /* normal windows */
4297                 for (j = 0; j < no; j++) {
4298                         if (!XGetWindowAttributes(display, wins[j], &wa) ||
4299                             wa.override_redirect ||
4300                             XGetTransientForHint(display, wins[j], &d1))
4301                                 continue;
4302
4303                         state = getstate(wins[j]);
4304                         manage = state == IconicState;
4305                         if (wa.map_state == IsViewable || manage)
4306                                 manage_window(wins[j]);
4307                 }
4308                 /* transient windows */
4309                 for (j = 0; j < no; j++) {
4310                         if (!XGetWindowAttributes(display, wins[j], &wa) ||
4311                             wa.override_redirect)
4312                                 continue;
4313
4314                         state = getstate(wins[j]);
4315                         manage = state == IconicState;
4316                         if (XGetTransientForHint(display, wins[j], &d1) &&
4317                             manage)
4318                                 manage_window(wins[j]);
4319                 }
4320                 if (wins) {
4321                         XFree(wins);
4322                         wins = NULL;
4323                 }
4324         }
4325 }
4326
4327 void
4328 setup_globals(void)
4329 {
4330         if ((bar_fonts[0] = strdup("-*-terminus-medium-*-*-*-*-*-*-*-*-*-*-*"))
4331             == NULL)
4332                 err(1, "setup_globals: strdup");
4333         if ((bar_fonts[1] = strdup("-*-times-medium-r-*-*-*-*-*-*-*-*-*-*"))
4334             == NULL)
4335                 err(1, "setup_globals: strdup");
4336         if ((bar_fonts[2] = strdup("-misc-fixed-medium-r-*-*-*-*-*-*-*-*-*-*"))
4337             == NULL)
4338                 err(1, "setup_globals: strdup");
4339         if ((spawn_term[0] = strdup("xterm")) == NULL)
4340                 err(1, "setup_globals: strdup");
4341 }
4342
4343 void
4344 workaround(void)
4345 {
4346         int                     i;
4347         Atom                    netwmcheck, netwmname, utf8_string;
4348         Window                  root;
4349
4350         /* work around sun jdk bugs, code from wmname */
4351         netwmcheck = XInternAtom(display, "_NET_SUPPORTING_WM_CHECK", False);
4352         netwmname = XInternAtom(display, "_NET_WM_NAME", False);
4353         utf8_string = XInternAtom(display, "UTF8_STRING", False);
4354         for (i = 0; i < ScreenCount(display); i++) {
4355                 root = screens[i].root;
4356                 XChangeProperty(display, root, netwmcheck, XA_WINDOW, 32,
4357                     PropModeReplace, (unsigned char *)&root, 1);
4358                 XChangeProperty(display, root, netwmname, utf8_string, 8,
4359                     PropModeReplace, "LG3D", strlen("LG3D"));
4360         }
4361 }
4362
4363 int
4364 main(int argc, char *argv[])
4365 {
4366         struct passwd           *pwd;
4367         struct swm_region       *r, *rr;
4368         struct ws_win           *winfocus = NULL;
4369         struct timeval          tv;
4370         char                    conf[PATH_MAX], *cfile = NULL;
4371         struct stat             sb;
4372         XEvent                  e;
4373         int                     xfd, i;
4374         fd_set                  rd;
4375
4376         start_argv = argv;
4377         fprintf(stderr, "Welcome to scrotwm V%s cvs tag: %s\n",
4378             SWM_VERSION, cvstag);
4379         if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
4380                 warnx("no locale support");
4381
4382         if (!(display = XOpenDisplay(0)))
4383                 errx(1, "can not open display");
4384
4385         if (active_wm())
4386                 errx(1, "other wm running");
4387
4388         /* handle some signale */
4389         installsignal(SIGINT, "INT");
4390         installsignal(SIGHUP, "HUP");
4391         installsignal(SIGQUIT, "QUIT");
4392         installsignal(SIGTERM, "TERM");
4393         installsignal(SIGCHLD, "CHLD");
4394
4395         astate = XInternAtom(display, "WM_STATE", False);
4396         aprot = XInternAtom(display, "WM_PROTOCOLS", False);
4397         adelete = XInternAtom(display, "WM_DELETE_WINDOW", False);
4398         takefocus = XInternAtom(display, "WM_TAKE_FOCUS", False);
4399
4400         /* look for local and global conf file */
4401         pwd = getpwuid(getuid());
4402         if (pwd == NULL)
4403                 errx(1, "invalid user %d", getuid());
4404
4405         setup_screens();
4406         setup_globals();
4407         setup_keys();
4408         setup_quirks();
4409         setup_spawn();
4410
4411         snprintf(conf, sizeof conf, "%s/.%s", pwd->pw_dir, SWM_CONF_FILE);
4412         if (stat(conf, &sb) != -1) {
4413                 if (S_ISREG(sb.st_mode))
4414                         cfile = conf;
4415         } else {
4416                 /* try global conf file */
4417                 snprintf(conf, sizeof conf, "/etc/%s", SWM_CONF_FILE);
4418                 if (!stat(conf, &sb))
4419                         if (S_ISREG(sb.st_mode))
4420                                 cfile = conf;
4421         }
4422         if (cfile)
4423                 conf_load(cfile);
4424
4425         /* setup all bars */
4426         for (i = 0; i < ScreenCount(display); i++)
4427                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
4428                         if (winfocus == NULL)
4429                                 winfocus = TAILQ_FIRST(&r->ws->winlist);
4430                         bar_setup(r);
4431                 }
4432
4433         /* set some values to work around bad programs */
4434         workaround();
4435
4436         grabkeys();
4437         stack();
4438
4439         xfd = ConnectionNumber(display);
4440         while (running) {
4441                 while (XPending(display)) {
4442                         XNextEvent(display, &e);
4443                         if (running == 0)
4444                                 goto done;
4445                         if (e.type < LASTEvent) {
4446                                 dumpevent(&e);
4447                                 if (handler[e.type])
4448                                         handler[e.type](&e);
4449                                 else
4450                                         DNPRINTF(SWM_D_EVENT,
4451                                             "win: %lu unknown event: %d\n",
4452                                             e.xany.window, e.type);
4453                         } else {
4454                                 switch (e.type - xrandr_eventbase) {
4455                                 case RRScreenChangeNotify:
4456                                         screenchange(&e);
4457                                         break;
4458                                 default:
4459                                         DNPRINTF(SWM_D_EVENT,
4460                                             "win: %lu unknown xrandr event: "
4461                                             "%d\n", e.xany.window, e.type);
4462                                         break;
4463                                 }
4464                         }
4465                 }
4466
4467                 /* if we are being restarted go focus on first window */
4468                 if (winfocus) {
4469                         rr = TAILQ_FIRST(&screens[0].rl);
4470                         /* move pointer to first screen if multi screen */
4471                         if (ScreenCount(display) > 1 || outputs > 1)
4472                                 XWarpPointer(display, None, rr->s[0].root,
4473                                     0, 0, 0, 0, rr->g.x,
4474                                     rr->g.y + bar_enabled ? bar_height : 0);
4475
4476                         focus_win(winfocus);
4477                         winfocus = NULL;
4478                         continue;
4479                 }
4480
4481                 FD_ZERO(&rd);
4482                 FD_SET(xfd, &rd);
4483                 tv.tv_sec = 1;
4484                 tv.tv_usec = 0;
4485                 if (select(xfd + 1, &rd, NULL, NULL, &tv) == -1)
4486                         if (errno != EINTR)
4487                                 DNPRINTF(SWM_D_MISC, "select failed");
4488                 if (running == 0)
4489                         goto done;
4490                 if (bar_alarm) {
4491                         bar_alarm = 0;
4492                         bar_update();
4493                 }
4494         }
4495 done:
4496         bar_extra_stop();
4497
4498         XCloseDisplay(display);
4499
4500         return (0);
4501 }