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     "1.0"
  56
  57 #include <stdio.h>
  58 #include <stdlib.h>
  59 #include <err.h>
  60 #include <errno.h>
  61 #include <fcntl.h>
  62 #include <locale.h>
  63 #include <unistd.h>
  64 #include <time.h>
  65 #include <signal.h>
  66 #include <string.h>
  67 #include <util.h>
  68 #include <pwd.h>
  69 #include <ctype.h>
  70
  71 #include <sys/types.h>
  72 #include <sys/time.h>
  73 #include <sys/stat.h>
  74 #include <sys/wait.h>
  75 #include <sys/queue.h>
  76 #include <sys/param.h>
  77 #include <sys/select.h>
  78
  79 #include <X11/cursorfont.h>
  80 #include <X11/keysym.h>
  81 #include <X11/Xatom.h>
  82 #include <X11/Xlib.h>
  83 #include <X11/Xproto.h>
  84 #include <X11/Xutil.h>
  85 #include <X11/extensions/Xrandr.h>
  86
  87 #if RANDR_MAJOR < 1
  88 #  error XRandR versions less than 1.0 are not supported
  89 #endif
  90
  91 #if RANDR_MAJOR >= 1
  92 #if RANDR_MINOR >= 2
  93 #define SWM_XRR_HAS_CRTC
  94 #endif
  95 #endif
  96
  97 /* #define SWM_DEBUG */
  98 #ifdef SWM_DEBUG
  99 #define DPRINTF(x...)           do { if (swm_debug) fprintf(stderr, x); } while (0)
 100 #define DNPRINTF(n,x...)        do { if (swm_debug & n) fprintf(stderr, x); } while (0)
 101 #define SWM_D_MISC              0x0001
 102 #define SWM_D_EVENT             0x0002
 103 #define SWM_D_WS                0x0004
 104 #define SWM_D_FOCUS             0x0008
 105 #define SWM_D_MOVE              0x0010
 106 #define SWM_D_STACK             0x0020
 107 #define SWM_D_MOUSE             0x0040
 108 #define SWM_D_PROP              0x0080
 109 #define SWM_D_CLASS             0x0100
 110 #define SWM_D_KEY               0x0200
 111 #define SWM_D_QUIRK             0x0400
 112 #define SWM_D_SPAWN             0x0800
 113 #define SWM_D_EVENTQ            0x1000
 114 #define SWM_D_CONF              0x2000
 115
 116 u_int32_t               swm_debug = 0
 117                             | SWM_D_MISC
 118                             | SWM_D_EVENT
 119                             | SWM_D_WS
 120                             | SWM_D_FOCUS
 121                             | SWM_D_MOVE
 122                             | SWM_D_STACK
 123                             | SWM_D_MOUSE
 124                             | SWM_D_PROP
 125                             | SWM_D_CLASS
 126                             | SWM_D_KEY
 127                             | SWM_D_QUIRK
 128                             | SWM_D_SPAWN
 129                             | SWM_D_EVENTQ
 130                             | SWM_D_CONF
 131                             ;
 132 #else
 133 #define DPRINTF(x...)
 134 #define DNPRINTF(n,x...)
 135 #endif
 136
 137 #define LENGTH(x)               (sizeof x / sizeof x[0])
 138 #define MODKEY                  Mod1Mask
 139 #define CLEANMASK(mask)         (mask & ~(numlockmask | LockMask))
 140 #define BUTTONMASK              (ButtonPressMask|ButtonReleaseMask)
 141 #define MOUSEMASK               (BUTTONMASK|PointerMotionMask)
 142 #define SWM_PROPLEN             (16)
 143 #define SWM_FUNCNAME_LEN        (32)
 144 #define SWM_KEYS_LEN            (255)
 145 #define SWM_QUIRK_LEN           (64)
 146 #define X(r)                    (r)->g.x
 147 #define Y(r)                    (r)->g.y
 148 #define WIDTH(r)                (r)->g.w
 149 #define HEIGHT(r)               (r)->g.h
 150 #define SWM_MAX_FONT_STEPS      (3)
 151
 152 #ifndef SWM_LIB
 153 #define SWM_LIB                 "/usr/local/lib/libswmhack.so"
 154 #endif
 155
 156 char                    **start_argv;
 157 Atom                    astate;
 158 Atom                    aprot;
 159 Atom                    adelete;
 160 Atom                    takefocus;
 161 volatile sig_atomic_t   running = 1;
 162 int                     outputs = 0;
 163 int                     (*xerrorxlib)(Display *, XErrorEvent *);
 164 int                     other_wm;
 165 int                     ss_enabled = 0;
 166 int                     xrandr_support;
 167 int                     xrandr_eventbase;
 168 int                     ignore_enter = 0;
 169 unsigned int            numlockmask = 0;
 170 Display                 *display;
 171
 172 int                     cycle_empty = 0;
 173 int                     cycle_visible = 0;
 174 int                     term_width = 0;
 175 int                     font_adjusted = 0;
 176 unsigned int            mod_key = MODKEY;
 177
 178 /* dialog windows */
 179 double                  dialog_ratio = .6;
 180 /* status bar */
 181 #define SWM_BAR_MAX     (256)
 182 char                    *bar_argv[] = { NULL, NULL };
 183 int                     bar_pipe[2];
 184 char                    bar_ext[SWM_BAR_MAX];
 185 char                    bar_vertext[SWM_BAR_MAX];
 186 int                     bar_version = 0;
 187 sig_atomic_t            bar_alarm = 0;
 188 int                     bar_delay = 30;
 189 int                     bar_enabled = 1;
 190 int                     bar_extra = 1;
 191 int                     bar_extra_running = 0;
 192 int                     bar_verbose = 1;
 193 int                     bar_height = 0;
 194 int                     stack_enabled = 1;
 195 int                     clock_enabled = 1;
 196 int                     title_name_enabled = 0;
 197 int                     title_class_enabled = 0;
 198 pid_t                   bar_pid;
 199 GC                      bar_gc;
 200 XGCValues               bar_gcv;
 201 int                     bar_fidx = 0;
 202 XFontStruct             *bar_fs;
 203 char                    *bar_fonts[] = { NULL, NULL, NULL, NULL };/* XXX Make fully dynamic */
 204 char                    *spawn_term[] = { NULL, NULL };         /* XXX Make fully dynamic */
 205
 206 #define SWM_MENU_FN     (2)
 207 #define SWM_MENU_NB     (4)
 208 #define SWM_MENU_NF     (6)
 209 #define SWM_MENU_SB     (8)
 210 #define SWM_MENU_SF     (10)
 211
 212 /* layout manager data */
 213 struct swm_geometry {
 214         int                     x;
 215         int                     y;
 216         int                     w;
 217         int                     h;
 218 };
 219
 220 struct swm_screen;
 221 struct workspace;
 222
 223 /* virtual "screens" */
 224 struct swm_region {
 225         TAILQ_ENTRY(swm_region) entry;
 226         struct swm_geometry     g;
 227         struct workspace        *ws;    /* current workspace on this region */
 228         struct swm_screen       *s;     /* screen idx */
 229         Window                  bar_window;
 230 };
 231 TAILQ_HEAD(swm_region_list, swm_region);
 232
 233 struct ws_win {
 234         TAILQ_ENTRY(ws_win)     entry;
 235         Window                  id;
 236         Window                  transient;
 237         struct ws_win           *child_trans;   /* transient child window */
 238         struct swm_geometry     g;
 239         int                     floating;
 240         int                     manual;
 241         int                     font_size_boundary[SWM_MAX_FONT_STEPS];
 242         int                     font_steps;
 243         int                     last_inc;
 244         int                     can_delete;
 245         int                     take_focus;
 246         int                     java;
 247         unsigned long           quirks;
 248         struct workspace        *ws;    /* always valid */
 249         struct swm_screen       *s;     /* always valid, never changes */
 250         XWindowAttributes       wa;
 251         XSizeHints              sh;
 252         XClassHint              ch;
 253 };
 254 TAILQ_HEAD(ws_win_list, ws_win);
 255
 256 /* user/key callable function IDs */
 257 enum keyfuncid {
 258         kf_cycle_layout,
 259         kf_stack_reset,
 260         kf_master_shrink,
 261         kf_master_grow,
 262         kf_master_add,
 263         kf_master_del,
 264         kf_stack_inc,
 265         kf_stack_dec,
 266         kf_swap_main,
 267         kf_focus_next,
 268         kf_focus_prev,
 269         kf_swap_next,
 270         kf_swap_prev,
 271         kf_spawn_term,
 272         kf_spawn_menu,
 273         kf_quit,
 274         kf_restart,
 275         kf_focus_main,
 276         kf_ws_1,
 277         kf_ws_2,
 278         kf_ws_3,
 279         kf_ws_4,
 280         kf_ws_5,
 281         kf_ws_6,
 282         kf_ws_7,
 283         kf_ws_8,
 284         kf_ws_9,
 285         kf_ws_10,
 286         kf_ws_next,
 287         kf_ws_prev,
 288         kf_screen_next,
 289         kf_screen_prev,
 290         kf_mvws_1,
 291         kf_mvws_2,
 292         kf_mvws_3,
 293         kf_mvws_4,
 294         kf_mvws_5,
 295         kf_mvws_6,
 296         kf_mvws_7,
 297         kf_mvws_8,
 298         kf_mvws_9,
 299         kf_mvws_10,
 300         kf_bar_toggle,
 301         kf_wind_kill,
 302         kf_wind_del,
 303         kf_screenshot_all,
 304         kf_screenshot_wind,
 305         kf_float_toggle,
 306         kf_version,
 307         kf_spawn_lock,
 308         kf_spawn_initscr,
 309         kf_spawn_custom,
 310         kf_invalid
 311 };
 312
 313 /* layout handlers */
 314 void    stack(void);
 315 void    vertical_config(struct workspace *, int);
 316 void    vertical_stack(struct workspace *, struct swm_geometry *);
 317 void    horizontal_config(struct workspace *, int);
 318 void    horizontal_stack(struct workspace *, struct swm_geometry *);
 319 void    max_stack(struct workspace *, struct swm_geometry *);
 320
 321 void    grabbuttons(struct ws_win *, int);
 322 void    new_region(struct swm_screen *, int, int, int, int);
 323 void    unmanage_window(struct ws_win *);
 324
 325 struct layout {
 326         void            (*l_stack)(struct workspace *, struct swm_geometry *);
 327         void            (*l_config)(struct workspace *, int);
 328         u_int32_t       flags;
 329 #define SWM_L_FOCUSPREV         (1<<0)
 330 #define SWM_L_MAPONFOCUS        (1<<1)
 331         char            *name;
 332 } layouts[] =  {
 333         /* stack,               configure */
 334         { vertical_stack,       vertical_config,        0,      "[|]" },
 335         { horizontal_stack,     horizontal_config,      0,      "[-]" },
 336         { max_stack,            NULL,
 337           SWM_L_FOCUSPREV | SWM_L_MAPONFOCUS,                   "[ ]"},
 338         { NULL,                 NULL,                   0},
 339 };
 340
 341 #define SWM_H_SLICE             (32)
 342 #define SWM_V_SLICE             (32)
 343
 344 /* define work spaces */
 345 struct workspace {
 346         int                     idx;            /* workspace index */
 347         int                     restack;        /* restack on switch */
 348         struct layout           *cur_layout;    /* current layout handlers */
 349         struct ws_win           *focus;         /* may be NULL */
 350         struct ws_win           *focus_prev;    /* may be NULL */
 351         struct swm_region       *r;             /* may be NULL */
 352         struct swm_region       *old_r;         /* may be NULL */
 353         struct ws_win_list      winlist;        /* list of windows in ws */
 354
 355         /* stacker state */
 356         struct {
 357                                 int horizontal_msize;
 358                                 int horizontal_mwin;
 359                                 int horizontal_stacks;
 360                                 int vertical_msize;
 361                                 int vertical_mwin;
 362                                 int vertical_stacks;
 363         } l_state;
 364 };
 365
 366 enum    { SWM_S_COLOR_BAR, SWM_S_COLOR_BAR_BORDER, SWM_S_COLOR_BAR_FONT,
 367           SWM_S_COLOR_FOCUS, SWM_S_COLOR_UNFOCUS, SWM_S_COLOR_MAX };
 368
 369 /* physical screen mapping */
 370 #define SWM_WS_MAX              (10)            /* XXX Too small? */
 371 struct swm_screen {
 372         int                     idx;            /* screen index */
 373         struct swm_region_list  rl;     /* list of regions on this screen */
 374         struct swm_region_list  orl;    /* list of old regions */
 375         Window                  root;
 376         struct workspace        ws[SWM_WS_MAX];
 377
 378         /* colors */
 379         struct {
 380                 unsigned long   color;
 381                 char            *name;
 382         } c[SWM_S_COLOR_MAX];
 383 };
 384 struct swm_screen       *screens;
 385 int                     num_screens;
 386
 387 /* args to functions */
 388 union arg {
 389         int                     id;
 390 #define SWM_ARG_ID_FOCUSNEXT    (0)
 391 #define SWM_ARG_ID_FOCUSPREV    (1)
 392 #define SWM_ARG_ID_FOCUSMAIN    (2)
 393 #define SWM_ARG_ID_SWAPNEXT     (3)
 394 #define SWM_ARG_ID_SWAPPREV     (4)
 395 #define SWM_ARG_ID_SWAPMAIN     (5)
 396 #define SWM_ARG_ID_MASTERSHRINK (6)
 397 #define SWM_ARG_ID_MASTERGROW   (7)
 398 #define SWM_ARG_ID_MASTERADD    (8)
 399 #define SWM_ARG_ID_MASTERDEL    (9)
 400 #define SWM_ARG_ID_STACKRESET   (10)
 401 #define SWM_ARG_ID_STACKINIT    (11)
 402 #define SWM_ARG_ID_CYCLEWS_UP   (12)
 403 #define SWM_ARG_ID_CYCLEWS_DOWN (13)
 404 #define SWM_ARG_ID_CYCLESC_UP   (14)
 405 #define SWM_ARG_ID_CYCLESC_DOWN (15)
 406 #define SWM_ARG_ID_STACKINC     (16)
 407 #define SWM_ARG_ID_STACKDEC     (17)
 408 #define SWM_ARG_ID_SS_ALL       (0)
 409 #define SWM_ARG_ID_SS_WINDOW    (1)
 410 #define SWM_ARG_ID_DONTCENTER   (0)
 411 #define SWM_ARG_ID_CENTER       (1)
 412 #define SWM_ARG_ID_KILLWINDOW   (0)
 413 #define SWM_ARG_ID_DELETEWINDOW (1)
 414         char                    **argv;
 415 };
 416
 417 /* quirks */
 418 struct quirk {
 419         char                    *class;
 420         char                    *name;
 421         unsigned long           quirk;
 422 #define SWM_Q_FLOAT             (1<<0)  /* float this window */
 423 #define SWM_Q_TRANSSZ           (1<<1)  /* transiend window size too small */
 424 #define SWM_Q_ANYWHERE          (1<<2)  /* don't position this window */
 425 #define SWM_Q_XTERM_FONTADJ     (1<<3)  /* adjust xterm fonts when resizing */
 426 #define SWM_Q_FULLSCREEN        (1<<4)  /* remove border */
 427 };
 428 int                             quirks_size = 0, quirks_length = 0;
 429 struct quirk                    *quirks = NULL;
 430
 431 /* events */
 432 #ifdef SWM_DEBUG
 433 void
 434 dumpevent(XEvent *e)
 435 {
 436         char                    *name = NULL;
 437
 438         switch (e->type) {
 439         case KeyPress:
 440                 name = "KeyPress";
 441                 break;
 442         case KeyRelease:
 443                 name = "KeyRelease";
 444                 break;
 445         case ButtonPress:
 446                 name = "ButtonPress";
 447                 break;
 448         case ButtonRelease:
 449                 name = "ButtonRelease";
 450                 break;
 451         case MotionNotify:
 452                 name = "MotionNotify";
 453                 break;
 454         case EnterNotify:
 455                 name = "EnterNotify";
 456                 break;
 457         case LeaveNotify:
 458                 name = "LeaveNotify";
 459                 break;
 460         case FocusIn:
 461                 name = "FocusIn";
 462                 break;
 463         case FocusOut:
 464                 name = "FocusOut";
 465                 break;
 466         case KeymapNotify:
 467                 name = "KeymapNotify";
 468                 break;
 469         case Expose:
 470                 name = "Expose";
 471                 break;
 472         case GraphicsExpose:
 473                 name = "GraphicsExpose";
 474                 break;
 475         case NoExpose:
 476                 name = "NoExpose";
 477                 break;
 478         case VisibilityNotify:
 479                 name = "VisibilityNotify";
 480                 break;
 481         case CreateNotify:
 482                 name = "CreateNotify";
 483                 break;
 484         case DestroyNotify:
 485                 name = "DestroyNotify";
 486                 break;
 487         case UnmapNotify:
 488                 name = "UnmapNotify";
 489                 break;
 490         case MapNotify:
 491                 name = "MapNotify";
 492                 break;
 493         case MapRequest:
 494                 name = "MapRequest";
 495                 break;
 496         case ReparentNotify:
 497                 name = "ReparentNotify";
 498                 break;
 499         case ConfigureNotify:
 500                 name = "ConfigureNotify";
 501                 break;
 502         case ConfigureRequest:
 503                 name = "ConfigureRequest";
 504                 break;
 505         case GravityNotify:
 506                 name = "GravityNotify";
 507                 break;
 508         case ResizeRequest:
 509                 name = "ResizeRequest";
 510                 break;
 511         case CirculateNotify:
 512                 name = "CirculateNotify";
 513                 break;
 514         case CirculateRequest:
 515                 name = "CirculateRequest";
 516                 break;
 517         case PropertyNotify:
 518                 name = "PropertyNotify";
 519                 break;
 520         case SelectionClear:
 521                 name = "SelectionClear";
 522                 break;
 523         case SelectionRequest:
 524                 name = "SelectionRequest";
 525                 break;
 526         case SelectionNotify:
 527                 name = "SelectionNotify";
 528                 break;
 529         case ColormapNotify:
 530                 name = "ColormapNotify";
 531                 break;
 532         case ClientMessage:
 533                 name = "ClientMessage";
 534                 break;
 535         case MappingNotify:
 536                 name = "MappingNotify";
 537                 break;
 538         }
 539
 540         if (name)
 541                 DNPRINTF(SWM_D_EVENTQ ,"window: %lu event: %s (%d), %d "
 542                     "remaining\n",
 543                     e->xany.window, name, e->type, QLength(display));
 544         else
 545                 DNPRINTF(SWM_D_EVENTQ, "window: %lu unknown event %d, %d "
 546                     "remaining\n",
 547                     e->xany.window, e->type, QLength(display));
 548 }
 549 #else
 550 #define dumpevent(e)
 551 #endif /* SWM_DEBUG */
 552
 553 void                    expose(XEvent *);
 554 void                    keypress(XEvent *);
 555 void                    buttonpress(XEvent *);
 556 void                    configurerequest(XEvent *);
 557 void                    configurenotify(XEvent *);
 558 void                    destroynotify(XEvent *);
 559 void                    enternotify(XEvent *);
 560 void                    focusin(XEvent *);
 561 void                    focusout(XEvent *);
 562 void                    mapnotify(XEvent *);
 563 void                    mappingnotify(XEvent *);
 564 void                    maprequest(XEvent *);
 565 void                    propertynotify(XEvent *);
 566 void                    unmapnotify(XEvent *);
 567 void                    visibilitynotify(XEvent *);
 568
 569 void                    (*handler[LASTEvent])(XEvent *) = {
 570                                 [Expose] = expose,
 571                                 [KeyPress] = keypress,
 572                                 [ButtonPress] = buttonpress,
 573                                 [ConfigureRequest] = configurerequest,
 574                                 [ConfigureNotify] = configurenotify,
 575                                 [DestroyNotify] = destroynotify,
 576                                 [EnterNotify] = enternotify,
 577                                 [FocusIn] = focusin,
 578                                 [FocusOut] = focusout,
 579                                 [MapNotify] = mapnotify,
 580                                 [MappingNotify] = mappingnotify,
 581                                 [MapRequest] = maprequest,
 582                                 [PropertyNotify] = propertynotify,
 583                                 [UnmapNotify] = unmapnotify,
 584                                 [VisibilityNotify] = visibilitynotify,
 585 };
 586
 587 void
 588 sighdlr(int sig)
 589 {
 590         pid_t                   pid;
 591
 592         switch (sig) {
 593         case SIGCHLD:
 594                 while ((pid = waitpid(WAIT_ANY, NULL, WNOHANG)) != -1) {
 595                         DNPRINTF(SWM_D_MISC, "reaping: %d\n", pid);
 596                         if (pid <= 0)
 597                                 break;
 598                 }
 599                 break;
 600         case SIGINT:
 601         case SIGTERM:
 602         case SIGHUP:
 603         case SIGQUIT:
 604                 running = 0;
 605                 break;
 606         }
 607 }
 608
 609 void
 610 installsignal(int sig, char *name)
 611 {
 612         struct sigaction        sa;
 613
 614         sa.sa_handler = sighdlr;
 615         sigemptyset(&sa.sa_mask);
 616         sa.sa_flags = 0;
 617         if (sigaction(sig, &sa, NULL) == -1)
 618                 err(1, "could not install %s handler", name);
 619 }
 620
 621 unsigned long
 622 name_to_color(char *colorname)
 623 {
 624         Colormap                cmap;
 625         Status                  status;
 626         XColor                  screen_def, exact_def;
 627         unsigned long           result = 0;
 628         char                    cname[32] = "#";
 629
 630         cmap = DefaultColormap(display, screens[0].idx);
 631         status = XAllocNamedColor(display, cmap, colorname,
 632             &screen_def, &exact_def);
 633         if (!status) {
 634                 strlcat(cname, colorname + 2, sizeof cname - 1);
 635                 status = XAllocNamedColor(display, cmap, cname, &screen_def,
 636                     &exact_def);
 637         }
 638         if (status)
 639                 result = screen_def.pixel;
 640         else
 641                 fprintf(stderr, "color '%s' not found.\n", colorname);
 642
 643         return (result);
 644 }
 645
 646 void
 647 setscreencolor(char *val, int i, int c)
 648 {
 649         if (i > 0 && i <= ScreenCount(display)) {
 650                 screens[i - 1].c[c].color = name_to_color(val);
 651                 free(screens[i - 1].c[c].name);
 652                 if ((screens[i - 1].c[c].name = strdup(val)) == NULL)
 653                         errx(1, "strdup");
 654         } else if (i == -1) {
 655                 for (i = 0; i < ScreenCount(display); i++) {
 656                         screens[i].c[c].color = name_to_color(val);
 657                         free(screens[i].c[c].name);
 658                         if ((screens[i].c[c].name = strdup(val)) == NULL)
 659                                 errx(1, "strdup");
 660                 }
 661         } else
 662                 errx(1, "invalid screen index: %d out of bounds (maximum %d)\n",
 663                     i, ScreenCount(display));
 664 }
 665
 666 void
 667 custom_region(char *val)
 668 {
 669         unsigned int                    sidx, x, y, w, h;
 670
 671         if (sscanf(val, "screen[%u]:%ux%u+%u+%u", &sidx, &w, &h, &x, &y) != 5)
 672                 errx(1, "invalid custom region, "
 673                     "should be 'screen[<n>]:<n>x<n>+<n>+<n>\n");
 674         if (sidx < 1 || sidx > ScreenCount(display))
 675                 errx(1, "invalid screen index: %d out of bounds (maximum %d)\n",
 676                     sidx, ScreenCount(display));
 677         sidx--;
 678
 679         if (w < 1 || h < 1)
 680                 errx(1, "region %ux%u+%u+%u too small\n", w, h, x, y);
 681
 682         if (x  < 0 || x > DisplayWidth(display, sidx) ||
 683             y < 0 || y > DisplayHeight(display, sidx) ||
 684             w + x > DisplayWidth(display, sidx) ||
 685             h + y > DisplayHeight(display, sidx))
 686                 errx(1, "region %ux%u+%u+%u not within screen boundaries "
 687                     "(%ux%u)\n", w, h, x, y,
 688                     DisplayWidth(display, sidx), DisplayHeight(display, sidx));
 689
 690         new_region(&screens[sidx], x, y, w, h);
 691 }
 692
 693 void
 694 socket_setnonblock(int fd)
 695 {
 696         int                     flags;
 697
 698         if ((flags = fcntl(fd, F_GETFL, 0)) == -1)
 699                 err(1, "fcntl F_GETFL");
 700         flags |= O_NONBLOCK;
 701         if ((flags = fcntl(fd, F_SETFL, flags)) == -1)
 702                 err(1, "fcntl F_SETFL");
 703 }
 704
 705 void
 706 bar_print(struct swm_region *r, char *s)
 707 {
 708         XClearWindow(display, r->bar_window);
 709         XSetForeground(display, bar_gc, r->s->c[SWM_S_COLOR_BAR_FONT].color);
 710         XDrawString(display, r->bar_window, bar_gc, 4, bar_fs->ascent, s,
 711             strlen(s));
 712 }
 713
 714 void
 715 bar_extra_stop(void)
 716 {
 717         if (bar_pipe[0]) {
 718                 close(bar_pipe[0]);
 719                 bzero(bar_pipe, sizeof bar_pipe);
 720         }
 721         if (bar_pid) {
 722                 kill(bar_pid, SIGTERM);
 723                 bar_pid = 0;
 724         }
 725         strlcpy(bar_ext, "", sizeof bar_ext);
 726         bar_extra = 0;
 727 }
 728
 729 void
 730 bar_class_name(char *s, ssize_t sz, struct ws_win *cur_focus)
 731 {
 732         int                     do_class, do_name;
 733         Status                  status;
 734         XClassHint              *xch = NULL;
 735
 736         if ((title_name_enabled == 1 || title_class_enabled == 1) &&
 737             cur_focus != NULL) {
 738                 if ((xch = XAllocClassHint()) == NULL)
 739                         goto out;
 740                 status = XGetClassHint(display, cur_focus->id, xch);
 741                 if (status == BadWindow || status == BadAlloc)
 742                         goto out;
 743                 do_class = (title_class_enabled && xch->res_class != NULL);
 744                 do_name = (title_name_enabled && xch->res_name != NULL);
 745                 if (do_class)
 746                         strlcat(s, xch->res_class, sz);
 747                 if (do_class && do_name)
 748                         strlcat(s, ":", sz);
 749                 if (do_name)
 750                         strlcat(s, xch->res_name, sz);
 751                 strlcat(s, "    ", sz);
 752         }
 753 out:
 754         if (xch)
 755                 XFree(xch);
 756 }
 757
 758 void
 759 bar_update(void)
 760 {
 761         time_t                  tmt;
 762         struct tm               tm;
 763         struct swm_region       *r;
 764         int                     i, x;
 765         size_t                  len;
 766         char                    s[SWM_BAR_MAX];
 767         char                    loc[SWM_BAR_MAX];
 768         char                    *b;
 769         char                    *stack = "";
 770
 771         if (bar_enabled == 0)
 772                 return;
 773         if (bar_extra && bar_extra_running) {
 774                 /* ignore short reads; it'll correct itself */
 775                 while ((b = fgetln(stdin, &len)) != NULL)
 776                         if (b && b[len - 1] == '\n') {
 777                                 b[len - 1] = '\0';
 778                                 strlcpy(bar_ext, b, sizeof bar_ext);
 779                         }
 780                 if (b == NULL && errno != EAGAIN) {
 781                         fprintf(stderr, "bar_extra failed: errno: %d %s\n",
 782                             errno, strerror(errno));
 783                         bar_extra_stop();
 784                 }
 785         } else
 786                 strlcpy(bar_ext, "", sizeof bar_ext);
 787
 788         if (clock_enabled == 0)
 789                 strlcpy(s, "", sizeof s);
 790         else {
 791                 time(&tmt);
 792                 localtime_r(&tmt, &tm);
 793                 strftime(s, sizeof s, "%a %b %d %R %Z %Y    ", &tm);
 794         }
 795
 796         for (i = 0; i < ScreenCount(display); i++) {
 797                 x = 1;
 798                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
 799                         if (r && r->ws)
 800                                 bar_class_name(s, sizeof s, r->ws->focus);
 801
 802                         if (stack_enabled)
 803                                 stack = r->ws->cur_layout->name;
 804
 805                         snprintf(loc, sizeof loc, "%d:%d %s   %s %s    %s",
 806                             x++, r->ws->idx + 1, stack, s, bar_ext,
 807                             bar_vertext);
 808                         bar_print(r, loc);
 809                 }
 810         }
 811         alarm(bar_delay);
 812 }
 813
 814 void
 815 bar_signal(int sig)
 816 {
 817         bar_alarm = 1;
 818 }
 819
 820 void
 821 bar_toggle(struct swm_region *r, union arg *args)
 822 {
 823         struct swm_region       *tmpr;
 824         int                     i, j, sc = ScreenCount(display);
 825
 826         DNPRINTF(SWM_D_MISC, "bar_toggle\n");
 827
 828         if (bar_enabled)
 829                 for (i = 0; i < sc; i++)
 830                         TAILQ_FOREACH(tmpr, &screens[i].rl, entry)
 831                                 XUnmapWindow(display, tmpr->bar_window);
 832         else
 833                 for (i = 0; i < sc; i++)
 834                         TAILQ_FOREACH(tmpr, &screens[i].rl, entry)
 835                                 XMapRaised(display, tmpr->bar_window);
 836
 837         bar_enabled = !bar_enabled;
 838         for (i = 0; i < sc; i++)
 839                 for (j = 0; j < SWM_WS_MAX; j++)
 840                         screens[i].ws[j].restack = 1;
 841
 842         stack();
 843         /* must be after stack */
 844         bar_update();
 845 }
 846
 847 void
 848 bar_refresh(void)
 849 {
 850         XSetWindowAttributes    wa;
 851         struct swm_region       *r;
 852         int                     i;
 853
 854         /* do this here because the conf file is in memory */
 855         if (bar_extra && bar_extra_running == 0 && bar_argv[0]) {
 856                 /* launch external status app */
 857                 bar_extra_running = 1;
 858                 if (pipe(bar_pipe) == -1)
 859                         err(1, "pipe error");
 860                 socket_setnonblock(bar_pipe[0]);
 861                 socket_setnonblock(bar_pipe[1]); /* XXX hmmm, really? */
 862                 if (dup2(bar_pipe[0], 0) == -1)
 863                         errx(1, "dup2");
 864                 if (dup2(bar_pipe[1], 1) == -1)
 865                         errx(1, "dup2");
 866                 if (signal(SIGPIPE, SIG_IGN) == SIG_ERR)
 867                         err(1, "could not disable SIGPIPE");
 868                 switch (bar_pid = fork()) {
 869                 case -1:
 870                         err(1, "cannot fork");
 871                         break;
 872                 case 0: /* child */
 873                         close(bar_pipe[0]);
 874                         execvp(bar_argv[0], bar_argv);
 875                         err(1, "%s external app failed", bar_argv[0]);
 876                         break;
 877                 default: /* parent */
 878                         close(bar_pipe[1]);
 879                         break;
 880                 }
 881         }
 882
 883         bzero(&wa, sizeof wa);
 884         for (i = 0; i < ScreenCount(display); i++)
 885                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
 886                         wa.border_pixel =
 887                             screens[i].c[SWM_S_COLOR_BAR_BORDER].color;
 888                         wa.background_pixel =
 889                             screens[i].c[SWM_S_COLOR_BAR].color;
 890                         XChangeWindowAttributes(display, r->bar_window,
 891                             CWBackPixel | CWBorderPixel, &wa);
 892                 }
 893         bar_update();
 894 }
 895
 896 void
 897 bar_setup(struct swm_region *r)
 898 {
 899         int                     i;
 900
 901         for (i = 0; bar_fonts[i] != NULL; i++) {
 902                 bar_fs = XLoadQueryFont(display, bar_fonts[i]);
 903                 if (bar_fs) {
 904                         bar_fidx = i;
 905                         break;
 906                 }
 907         }
 908         if (bar_fonts[i] == NULL)
 909                         errx(1, "couldn't load font");
 910         bar_height = bar_fs->ascent + bar_fs->descent + 3;
 911
 912         r->bar_window = XCreateSimpleWindow(display,
 913             r->s->root, X(r), Y(r), WIDTH(r) - 2, bar_height - 2,
 914             1, r->s->c[SWM_S_COLOR_BAR_BORDER].color,
 915             r->s->c[SWM_S_COLOR_BAR].color);
 916         bar_gc = XCreateGC(display, r->bar_window, 0, &bar_gcv);
 917         XSetFont(display, bar_gc, bar_fs->fid);
 918         XSelectInput(display, r->bar_window, VisibilityChangeMask);
 919         if (bar_enabled)
 920                 XMapRaised(display, r->bar_window);
 921         DNPRINTF(SWM_D_MISC, "bar_setup: bar_window %lu\n", r->bar_window);
 922
 923         if (signal(SIGALRM, bar_signal) == SIG_ERR)
 924                 err(1, "could not install bar_signal");
 925         bar_refresh();
 926 }
 927
 928 Bool
 929 set_win_notify_cb(Display *d, XEvent *e, char *arg)
 930 {
 931         struct ws_win           *win = (struct ws_win *)arg;
 932
 933         if (win && win->id == e->xany.window && e->xany.type == PropertyNotify)
 934                         return (True);
 935         return (False);
 936 }
 937
 938 void
 939 set_win_state(struct ws_win *win, long state)
 940 {
 941         long                    data[] = {state, None};
 942         XEvent                  ev;
 943         XWindowAttributes       wa;
 944
 945         DNPRINTF(SWM_D_EVENT, "set_win_state: window: %lu\n", win->id);
 946
 947         if (win == NULL)
 948                 return;
 949         /* make sure we drain everything */
 950         XSync(display, True);
 951
 952         /* make sure we still exist too */
 953         if (XGetWindowAttributes(display, win->id, &wa) == BadWindow)
 954                 return;
 955
 956         XChangeProperty(display, win->id, astate, astate, 32, PropModeReplace,
 957             (unsigned char *)data, 2);
 958
 959         /* wait for completion of XChangeProperty */
 960         while (XCheckIfEvent(display, &ev, set_win_notify_cb, (char *)win))
 961                 ;
 962 }
 963
 964 long
 965 getstate(Window w)
 966 {
 967         int                     format, status;
 968         long                    result = -1;
 969         unsigned char           *p = NULL;
 970         unsigned long           n, extra;
 971         Atom                    real;
 972
 973         status = XGetWindowProperty(display, w, astate, 0L, 2L, False, astate,
 974             &real, &format, &n, &extra, (unsigned char **)&p);
 975         if (status != Success)
 976                 return (-1);
 977         if (n != 0)
 978                 result = *((long *)p);
 979         XFree(p);
 980         return (result);
 981 }
 982
 983 void
 984 version(struct swm_region *r, union arg *args)
 985 {
 986         bar_version = !bar_version;
 987         if (bar_version)
 988                 snprintf(bar_vertext, sizeof bar_vertext, "Version: %s CVS: %s",
 989                     SWM_VERSION, cvstag);
 990         else
 991                 strlcpy(bar_vertext, "", sizeof bar_vertext);
 992         bar_update();
 993 }
 994
 995 void
 996 client_msg(struct ws_win *win, Atom a)
 997 {
 998         XClientMessageEvent     cm;
 999
1000         if (win == NULL)
1001                 return;
1002
1003         bzero(&cm, sizeof cm);
1004         cm.type = ClientMessage;
1005         cm.window = win->id;
1006         cm.message_type = aprot;
1007         cm.format = 32;
1008         cm.data.l[0] = a;
1009         cm.data.l[1] = CurrentTime;
1010         XSendEvent(display, win->id, False, 0L, (XEvent *)&cm);
1011 }
1012
1013 void
1014 config_win(struct ws_win *win)
1015 {
1016         XConfigureEvent         ce;
1017
1018         DNPRINTF(SWM_D_MISC, "config_win: win %lu x %d y %d w %d h %d\n",
1019             win->id, win->g.x, win->g.y, win->g.w, win->g.h);
1020
1021         if (win == NULL)
1022                 return;
1023
1024         ce.type = ConfigureNotify;
1025         ce.display = display;
1026         ce.event = win->id;
1027         ce.window = win->id;
1028         ce.x = win->g.x;
1029         ce.y = win->g.y;
1030         ce.width = win->g.w;
1031         ce.height = win->g.h;
1032         ce.border_width = 1; /* XXX store this! */
1033         ce.above = None;
1034         ce.override_redirect = False;
1035         XSendEvent(display, win->id, False, StructureNotifyMask, (XEvent *)&ce);
1036 }
1037
1038 int
1039 count_win(struct workspace *ws, int count_transient)
1040 {
1041         struct ws_win           *win;
1042         int                     count = 0;
1043         int                     state;
1044
1045         /*
1046          * Under stress conditions windows sometimes do not get removed from
1047          * the managed list quickly enough.  Use a very large hammer to get rid
1048          * of them.  A smaller hammer would be nice.
1049          */
1050         TAILQ_FOREACH(win, &ws->winlist, entry) {
1051                 state = getstate(win->id);
1052                 if (state == -1) {
1053                         DNPRINTF(SWM_D_MISC, "count_win:removing: %lu\n",
1054                             win->id);
1055                         unmanage_window(win);
1056                 }
1057         }
1058
1059         TAILQ_FOREACH(win, &ws->winlist, entry) {
1060                 if (count_transient == 0 && win->floating)
1061                         continue;
1062                 if (count_transient == 0 && win->transient)
1063                         continue;
1064                 count++;
1065         }
1066         DNPRINTF(SWM_D_MISC, "count_win: %d\n", count);
1067
1068         return (count);
1069 }
1070
1071 void
1072 quit(struct swm_region *r, union arg *args)
1073 {
1074         DNPRINTF(SWM_D_MISC, "quit\n");
1075         running = 0;
1076 }
1077
1078 Bool
1079 unmap_window_cb(Display *d, XEvent *e, char *arg)
1080 {
1081         struct ws_win           *win = (struct ws_win *)arg;
1082
1083         if (win && win->id == e->xany.window && e->xany.type == UnmapNotify)
1084                         return (True);
1085         return (False);
1086 }
1087
1088 void
1089 unmap_window(struct ws_win *win)
1090 {
1091         XEvent                  ev;
1092         XWindowAttributes       wa;
1093
1094         if (win == NULL)
1095                 return;
1096
1097         /* make sure we still exist too */
1098         if (XGetWindowAttributes(display, win->id, &wa) == BadWindow)
1099                 return;
1100
1101         /* don't unmap again */
1102         if (wa.map_state == IsUnmapped && getstate(win->id) == IconicState)
1103                 return;
1104
1105         /* java shits itself when windows are set to iconic state */
1106         if (win->java == 0)
1107                 set_win_state(win, IconicState);
1108
1109         XUnmapWindow(display, win->id);
1110
1111         /* make sure we wait for XUnmapWindow completion */
1112         while (XCheckIfEvent(display, &ev, unmap_window_cb, (char *)win))
1113                 ;
1114 }
1115
1116 void
1117 unmap_all(void)
1118 {
1119         struct ws_win           *win;
1120         int                     i, j;
1121
1122         for (i = 0; i < ScreenCount(display); i++)
1123                 for (j = 0; j < SWM_WS_MAX; j++)
1124                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
1125                                 unmap_window(win);
1126 }
1127
1128 void
1129 fake_keypress(struct ws_win *win, int keysym, int modifiers)
1130 {
1131         XKeyEvent event;
1132
1133         if (win == NULL)
1134                 return;
1135
1136         event.display = display;        /* Ignored, but what the hell */
1137         event.window = win->id;
1138         event.root = win->s->root;
1139         event.subwindow = None;
1140         event.time = CurrentTime;
1141         event.x = win->g.x;
1142         event.y = win->g.y;
1143         event.x_root = 1;
1144         event.y_root = 1;
1145         event.same_screen = True;
1146         event.keycode = XKeysymToKeycode(display, keysym);
1147         event.state = modifiers;
1148
1149         event.type = KeyPress;
1150         XSendEvent(event.display, event.window, True,
1151             KeyPressMask, (XEvent *)&event);
1152
1153         event.type = KeyRelease;
1154         XSendEvent(event.display, event.window, True,
1155             KeyPressMask, (XEvent *)&event);
1156
1157 }
1158
1159 void
1160 restart(struct swm_region *r, union arg *args)
1161 {
1162         DNPRINTF(SWM_D_MISC, "restart: %s\n", start_argv[0]);
1163
1164         /* disable alarm because the following code may not be interrupted */
1165         alarm(0);
1166         if (signal(SIGALRM, SIG_IGN) == SIG_ERR)
1167                 errx(1, "can't disable alarm");
1168
1169         bar_extra_stop();
1170         bar_extra = 1;
1171         unmap_all();
1172         XCloseDisplay(display);
1173         execvp(start_argv[0], start_argv);
1174         fprintf(stderr, "execvp failed\n");
1175         perror(" failed");
1176         quit(NULL, NULL);
1177 }
1178
1179 struct swm_region *
1180 root_to_region(Window root)
1181 {
1182         struct swm_region       *r = NULL;
1183         Window                  rr, cr;
1184         int                     i, x, y, wx, wy;
1185         unsigned int            mask;
1186
1187         for (i = 0; i < ScreenCount(display); i++)
1188                 if (screens[i].root == root)
1189                         break;
1190
1191         if (XQueryPointer(display, screens[i].root,
1192             &rr, &cr, &x, &y, &wx, &wy, &mask) != False) {
1193                 /* choose a region based on pointer location */
1194                 TAILQ_FOREACH(r, &screens[i].rl, entry)
1195                         if (x >= X(r) && x <= X(r) + WIDTH(r) &&
1196                             y >= Y(r) && y <= Y(r) + HEIGHT(r))
1197                                 break;
1198         }
1199
1200         if (r == NULL)
1201                 r = TAILQ_FIRST(&screens[i].rl);
1202
1203         return (r);
1204 }
1205
1206 struct ws_win *
1207 find_window(Window id)
1208 {
1209         struct ws_win           *win;
1210         int                     i, j;
1211
1212         for (i = 0; i < ScreenCount(display); i++)
1213                 for (j = 0; j < SWM_WS_MAX; j++)
1214                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
1215                                 if (id == win->id)
1216                                         return (win);
1217         return (NULL);
1218 }
1219
1220 void
1221 spawn(struct swm_region *r, union arg *args)
1222 {
1223         char                    *ret;
1224         int                     si;
1225
1226         DNPRINTF(SWM_D_MISC, "spawn: %s\n", args->argv[0]);
1227         /*
1228          * The double-fork construct avoids zombie processes and keeps the code
1229          * clean from stupid signal handlers.
1230          */
1231         if (fork() == 0) {
1232                 if (fork() == 0) {
1233                         if (display)
1234                                 close(ConnectionNumber(display));
1235                         setenv("LD_PRELOAD", SWM_LIB, 1);
1236                         if (asprintf(&ret, "%d", r->ws->idx)) {
1237                                 setenv("_SWM_WS", ret, 1);
1238                                 free(ret);
1239                         }
1240                         if (asprintf(&ret, "%d", getpid())) {
1241                                 setenv("_SWM_PID", ret, 1);
1242                                 free(ret);
1243                         }
1244                         setsid();
1245                         /* kill stdin, mplayer, ssh-add etc. need that */
1246                         si = open("/dev/null", O_RDONLY, 0);
1247                         if (si == -1)
1248                                 err(1, "open /dev/null");
1249                         if (dup2(si, 0) == -1)
1250                                 err(1, "dup2 /dev/null");
1251                         execvp(args->argv[0], args->argv);
1252                         fprintf(stderr, "execvp failed\n");
1253                         perror(" failed");
1254                 }
1255                 exit(0);
1256         }
1257 }
1258
1259 void
1260 spawnterm(struct swm_region *r, union arg *args)
1261 {
1262         DNPRINTF(SWM_D_MISC, "spawnterm\n");
1263
1264         if (term_width)
1265                 setenv("_SWM_XTERM_FONTADJ", "", 1);
1266         spawn(r, args);
1267 }
1268
1269 void
1270 unfocus_win(struct ws_win *win)
1271 {
1272         if (win == NULL)
1273                 return;
1274         if (win->ws == NULL)
1275                 return;
1276         if (win->ws->r == NULL)
1277                 return;
1278
1279         if (win->ws->focus == win) {
1280                 win->ws->focus = NULL;
1281                 win->ws->focus_prev = win;
1282         }
1283
1284         grabbuttons(win, 0);
1285         XSetWindowBorder(display, win->id,
1286             win->ws->r->s->c[SWM_S_COLOR_UNFOCUS].color);
1287 }
1288
1289 void
1290 unfocus_all(void)
1291 {
1292         struct ws_win           *win;
1293         int                     i, j;
1294
1295         DNPRINTF(SWM_D_FOCUS, "unfocus_all:\n");
1296
1297         for (i = 0; i < ScreenCount(display); i++)
1298                 for (j = 0; j < SWM_WS_MAX; j++)
1299                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
1300                                 unfocus_win(win);
1301 }
1302
1303 void
1304 focus_win(struct ws_win *win)
1305 {
1306         DNPRINTF(SWM_D_FOCUS, "focus_win: id: %lu\n", win ? win->id : 0);
1307
1308         if (win == NULL)
1309                 return;
1310         if (win->ws == NULL)
1311                 return;
1312
1313         /* use big hammer to make sure it works under all use cases */
1314         unfocus_all();
1315         win->ws->focus = win;
1316
1317         if (win->ws->r != NULL) {
1318                 XSetWindowBorder(display, win->id,
1319                     win->ws->r->s->c[SWM_S_COLOR_FOCUS].color);
1320                 grabbuttons(win, 1);
1321                 if (win->ws->cur_layout->flags & SWM_L_MAPONFOCUS)
1322                         XMapRaised(display, win->id);
1323                 if (win->java == 0)
1324                         XSetInputFocus(display, win->id,
1325                             RevertToPointerRoot, CurrentTime);
1326         }
1327 }
1328
1329 void
1330 switchws(struct swm_region *r, union arg *args)
1331 {
1332         int                     wsid = args->id;
1333         struct swm_region       *this_r, *other_r;
1334         struct ws_win           *win, *winfocus = NULL, *parent = NULL;
1335         struct workspace        *new_ws, *old_ws;
1336
1337         if (!(r && r->s))
1338                 return;
1339
1340         this_r = r;
1341         old_ws = this_r->ws;
1342         new_ws = &this_r->s->ws[wsid];
1343
1344         DNPRINTF(SWM_D_WS, "switchws screen[%d]:%dx%d+%d+%d: "
1345             "%d -> %d\n", r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r),
1346             old_ws->idx, wsid);
1347
1348         if (new_ws == NULL || old_ws == NULL || new_ws == old_ws)
1349                 return;
1350
1351         /* get focus window */
1352         if (new_ws->focus)
1353                 winfocus = new_ws->focus;
1354         else if (new_ws->focus_prev)
1355                 winfocus = new_ws->focus_prev;
1356         else
1357                 winfocus = TAILQ_FIRST(&new_ws->winlist);
1358
1359         other_r = new_ws->r;
1360         if (other_r == NULL) {
1361                 /* if the other workspace is hidden, switch windows */
1362                 if (old_ws->r != NULL)
1363                         old_ws->old_r = old_ws->r;
1364                 old_ws->r = NULL;
1365                 old_ws->restack = 1;
1366
1367                 /*
1368                  * Map new windows first if they were here before
1369                  * to minimize ugly blinking.
1370                  */
1371                 if (new_ws->old_r == this_r)
1372                         TAILQ_FOREACH(win, &new_ws->winlist, entry)
1373                                 if (!(win->ws->cur_layout->flags &
1374                                     SWM_L_MAPONFOCUS))
1375                                         XMapRaised(display, win->id);
1376
1377                 TAILQ_FOREACH(win, &old_ws->winlist, entry)
1378                         unmap_window(win);
1379         } else {
1380                 other_r->ws = old_ws;
1381                 old_ws->r = other_r;
1382         }
1383         this_r->ws = new_ws;
1384         new_ws->r = this_r;
1385
1386         ignore_enter = 1;
1387         stack();
1388         if (winfocus) {
1389                 /* make sure we see the parent window */
1390                 if (winfocus->transient) {
1391                         parent = find_window(winfocus->transient);
1392                         if (parent)
1393                                 focus_win(parent);
1394                 }
1395
1396                 focus_win(winfocus);
1397         }
1398         ignore_enter = 0;
1399         bar_update();
1400 }
1401
1402 void
1403 cyclews(struct swm_region *r, union arg *args)
1404 {
1405         union                   arg a;
1406         struct swm_screen       *s = r->s;
1407
1408         DNPRINTF(SWM_D_WS, "cyclews id %d "
1409             "in screen[%d]:%dx%d+%d+%d ws %d\n", args->id,
1410             r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
1411
1412         a.id = r->ws->idx;
1413         do {
1414                 switch (args->id) {
1415                 case SWM_ARG_ID_CYCLEWS_UP:
1416                         if (a.id < SWM_WS_MAX - 1)
1417                                 a.id++;
1418                         else
1419                                 a.id = 0;
1420                         break;
1421                 case SWM_ARG_ID_CYCLEWS_DOWN:
1422                         if (a.id > 0)
1423                                 a.id--;
1424                         else
1425                                 a.id = SWM_WS_MAX - 1;
1426                         break;
1427                 default:
1428                         return;
1429                 };
1430
1431                 if (cycle_empty == 0 && TAILQ_EMPTY(&s->ws[a.id].winlist))
1432                         continue;
1433                 if (cycle_visible == 0 && s->ws[a.id].r != NULL)
1434                         continue;
1435
1436                 switchws(r, &a);
1437         } while (a.id != r->ws->idx);
1438 }
1439
1440 void
1441 cyclescr(struct swm_region *r, union arg *args)
1442 {
1443         struct swm_region       *rr = NULL;
1444         struct workspace        *ws = NULL;
1445         struct ws_win           *winfocus = NULL;
1446         int                     i, x, y;
1447
1448         /* do nothing if we don't have more than one screen */
1449         if (!(ScreenCount(display) > 1 || outputs > 1))
1450                 return;
1451
1452         i = r->s->idx;
1453         switch (args->id) {
1454         case SWM_ARG_ID_CYCLESC_UP:
1455                 rr = TAILQ_NEXT(r, entry);
1456                 if (rr == NULL)
1457                         rr = TAILQ_FIRST(&screens[i].rl);
1458                 break;
1459         case SWM_ARG_ID_CYCLESC_DOWN:
1460                 rr = TAILQ_PREV(r, swm_region_list, entry);
1461                 if (rr == NULL)
1462                         rr = TAILQ_LAST(&screens[i].rl, swm_region_list);
1463                 break;
1464         default:
1465                 return;
1466         };
1467         if (rr == NULL)
1468                 return;
1469
1470         ws = rr->ws;
1471         winfocus = ws->focus;
1472         if (winfocus == NULL)
1473                 winfocus = ws->focus_prev;
1474         if (winfocus) {
1475                 /* use window coordinates */
1476                 x = winfocus->g.x + 1;
1477                 y = winfocus->g.y + 1;
1478         } else {
1479                 /* use region coordinates */
1480                 x = rr->g.x + 1;
1481                 y = rr->g.y + 1 + bar_enabled ? bar_height : 0;
1482         }
1483
1484         unfocus_all();
1485         XSetInputFocus(display, PointerRoot, RevertToPointerRoot, CurrentTime);
1486         XWarpPointer(display, None, rr->s[i].root, 0, 0, 0, 0, x, y);
1487
1488         focus_win(winfocus);
1489 }
1490
1491 void
1492 swapwin(struct swm_region *r, union arg *args)
1493 {
1494         struct ws_win           *target, *source;
1495         struct ws_win           *cur_focus;
1496         struct ws_win_list      *wl;
1497
1498
1499         DNPRINTF(SWM_D_WS, "swapwin id %d "
1500             "in screen %d region %dx%d+%d+%d ws %d\n", args->id,
1501             r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
1502
1503         cur_focus = r->ws->focus;
1504         if (cur_focus == NULL)
1505                 return;
1506
1507         source = cur_focus;
1508         wl = &source->ws->winlist;
1509
1510         switch (args->id) {
1511         case SWM_ARG_ID_SWAPPREV:
1512                 target = TAILQ_PREV(source, ws_win_list, entry);
1513                 TAILQ_REMOVE(wl, cur_focus, entry);
1514                 if (target == NULL)
1515                         TAILQ_INSERT_TAIL(wl, source, entry);
1516                 else
1517                         TAILQ_INSERT_BEFORE(target, source, entry);
1518                 break;
1519         case SWM_ARG_ID_SWAPNEXT:
1520                 target = TAILQ_NEXT(source, entry);
1521                 TAILQ_REMOVE(wl, source, entry);
1522                 if (target == NULL)
1523                         TAILQ_INSERT_HEAD(wl, source, entry);
1524                 else
1525                         TAILQ_INSERT_AFTER(wl, target, source, entry);
1526                 break;
1527         case SWM_ARG_ID_SWAPMAIN:
1528                 target = TAILQ_FIRST(wl);
1529                 if (target == source) {
1530                         if (source->ws->focus_prev != NULL &&
1531                             source->ws->focus_prev != target)
1532
1533                                 source = source->ws->focus_prev;
1534                         else
1535                                 return;
1536                 }
1537                 source->ws->focus_prev = target;
1538                 TAILQ_REMOVE(wl, target, entry);
1539                 TAILQ_INSERT_BEFORE(source, target, entry);
1540                 TAILQ_REMOVE(wl, source, entry);
1541                 TAILQ_INSERT_HEAD(wl, source, entry);
1542                 break;
1543         default:
1544                 DNPRINTF(SWM_D_MOVE, "invalid id: %d\n", args->id);
1545                 return;
1546         }
1547
1548         ignore_enter = 1;
1549         stack();
1550 }
1551
1552 void
1553 focus(struct swm_region *r, union arg *args)
1554 {
1555         struct ws_win           *winfocus, *winlostfocus;
1556         struct ws_win_list      *wl;
1557         struct ws_win           *cur_focus;
1558
1559         DNPRINTF(SWM_D_FOCUS, "focus: id %d\n", args->id);
1560
1561         cur_focus = r->ws->focus;
1562         if (cur_focus == NULL)
1563                 return;
1564
1565         wl = &cur_focus->ws->winlist;
1566
1567         winlostfocus = cur_focus;
1568
1569         switch (args->id) {
1570         case SWM_ARG_ID_FOCUSPREV:
1571                 winfocus = TAILQ_PREV(cur_focus, ws_win_list, entry);
1572                 if (winfocus == NULL)
1573                         winfocus = TAILQ_LAST(wl, ws_win_list);
1574                 break;
1575
1576         case SWM_ARG_ID_FOCUSNEXT:
1577                 winfocus = TAILQ_NEXT(cur_focus, entry);
1578                 if (winfocus == NULL)
1579                         winfocus = TAILQ_FIRST(wl);
1580                 break;
1581
1582         case SWM_ARG_ID_FOCUSMAIN:
1583                 winfocus = TAILQ_FIRST(wl);
1584                 if (winfocus == cur_focus)
1585                         winfocus = cur_focus->ws->focus_prev;
1586                 if (winfocus == NULL)
1587                         return;
1588                 break;
1589
1590         default:
1591                 return;
1592         }
1593
1594         if (winfocus == winlostfocus || winfocus == NULL)
1595                 return;
1596
1597         focus_win(winfocus);
1598 }
1599
1600 void
1601 cycle_layout(struct swm_region *r, union arg *args)
1602 {
1603         struct workspace        *ws = r->ws;
1604         struct ws_win           *winfocus, *parent = NULL;
1605
1606         DNPRINTF(SWM_D_EVENT, "cycle_layout: workspace: %d\n", ws->idx);
1607
1608         winfocus = ws->focus;
1609
1610         ws->cur_layout++;
1611         if (ws->cur_layout->l_stack == NULL)
1612                 ws->cur_layout = &layouts[0];
1613
1614         ignore_enter = 1;
1615         stack();
1616         /* make sure we see the parent window */
1617         if (winfocus) {
1618                 if (winfocus->transient)
1619                         parent = find_window(winfocus->transient);
1620                 if (parent)
1621                         focus_win(parent);
1622                 focus_win(winfocus);
1623         }
1624         ignore_enter = 0;
1625 }
1626
1627 void
1628 stack_config(struct swm_region *r, union arg *args)
1629 {
1630         struct workspace        *ws = r->ws;
1631
1632         DNPRINTF(SWM_D_STACK, "stack_config for workspace %d (id %d\n",
1633             args->id, ws->idx);
1634
1635         if (ws->cur_layout->l_config != NULL)
1636                 ws->cur_layout->l_config(ws, args->id);
1637
1638         if (args->id != SWM_ARG_ID_STACKINIT);
1639                 stack();
1640 }
1641
1642 void
1643 stack(void) {
1644         struct swm_geometry     g;
1645         struct swm_region       *r;
1646         int                     i, j;
1647
1648         DNPRINTF(SWM_D_STACK, "stack\n");
1649
1650         for (i = 0; i < ScreenCount(display); i++) {
1651                 j = 0;
1652                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
1653                         DNPRINTF(SWM_D_STACK, "stacking workspace %d "
1654                             "(screen %d, region %d)\n", r->ws->idx, i, j++);
1655
1656                         /* start with screen geometry, adjust for bar */
1657                         g = r->g;
1658                         g.w -= 2;
1659                         g.h -= 2;
1660                         if (bar_enabled) {
1661                                 g.y += bar_height;
1662                                 g.h -= bar_height;
1663                         }
1664
1665                         r->ws->restack = 0;
1666                         r->ws->cur_layout->l_stack(r->ws, &g);
1667                 }
1668         }
1669         if (font_adjusted)
1670                 font_adjusted--;
1671 }
1672
1673 void
1674 stack_floater(struct ws_win *win, struct swm_region *r)
1675 {
1676         unsigned int            mask;
1677         XWindowChanges          wc;
1678
1679         if (win == NULL)
1680                 return;
1681
1682         bzero(&wc, sizeof wc);
1683         mask = CWX | CWY | CWBorderWidth | CWWidth | CWHeight;
1684         if ((win->quirks & SWM_Q_FULLSCREEN) && (win->g.w == WIDTH(r)) &&
1685             (win->g.h == HEIGHT(r)))
1686                 wc.border_width = 0;
1687         else
1688                 wc.border_width = 1;
1689         if (win->transient && (win->quirks & SWM_Q_TRANSSZ)) {
1690                 win->g.w = (double)WIDTH(r) * dialog_ratio;
1691                 win->g.h = (double)HEIGHT(r) * dialog_ratio;
1692         }
1693         wc.width = win->g.w;
1694         wc.height = win->g.h;
1695         if (win->manual) {
1696                 wc.x = win->g.x;
1697                 wc.y = win->g.y;
1698         } else {
1699                 wc.x = (WIDTH(r) - win->g.w) / 2;
1700                 wc.y = (HEIGHT(r) - win->g.h) / 2;
1701         }
1702
1703         /* adjust for region */
1704         wc.x += r->g.x;
1705         wc.y += r->g.y;
1706
1707         DNPRINTF(SWM_D_STACK, "stack_floater: win %lu x %d y %d w %d h %d\n",
1708             win->id, wc.x, wc.y, wc.width, wc.height);
1709
1710         XConfigureWindow(display, win->id, mask, &wc);
1711 }
1712
1713 /*
1714  * Send keystrokes to terminal to decrease/increase the font size as the
1715  * window size changes.
1716  */
1717 void
1718 adjust_font(struct ws_win *win)
1719 {
1720         if (!(win->quirks & SWM_Q_XTERM_FONTADJ) ||
1721             win->floating || win->transient)
1722                 return;
1723
1724         if (win->sh.width_inc && win->last_inc != win->sh.width_inc &&
1725             win->g.w / win->sh.width_inc < term_width &&
1726             win->font_steps < SWM_MAX_FONT_STEPS) {
1727                 win->font_size_boundary[win->font_steps] =
1728                     (win->sh.width_inc * term_width) + win->sh.base_width;
1729                 win->font_steps++;
1730                 font_adjusted++;
1731                 win->last_inc = win->sh.width_inc;
1732                 fake_keypress(win, XK_KP_Subtract, ShiftMask);
1733         } else if (win->font_steps && win->last_inc != win->sh.width_inc &&
1734             win->g.w > win->font_size_boundary[win->font_steps - 1]) {
1735                 win->font_steps--;
1736                 font_adjusted++;
1737                 win->last_inc = win->sh.width_inc;
1738                 fake_keypress(win, XK_KP_Add, ShiftMask);
1739         }
1740 }
1741
1742 #define SWAPXY(g)       do {                            \
1743         int tmp;                                        \
1744         tmp = (g)->y; (g)->y = (g)->x; (g)->x = tmp;    \
1745         tmp = (g)->h; (g)->h = (g)->w; (g)->w = tmp;    \
1746 } while (0)
1747 void
1748 stack_master(struct workspace *ws, struct swm_geometry *g, int rot, int flip)
1749 {
1750         XWindowChanges          wc;
1751         struct swm_geometry     win_g, r_g = *g;
1752         struct ws_win           *win;
1753         int                     i, j, s, stacks;
1754         int                     w_inc = 1, h_inc, w_base = 1, h_base;
1755         int                     hrh, extra = 0, h_slice, last_h = 0;
1756         int                     split, colno, winno, mwin, msize, mscale;
1757         int                     remain, missing, v_slice;
1758         unsigned int            mask;
1759
1760         DNPRINTF(SWM_D_STACK, "stack_master: workspace: %d\n rot=%s flip=%s",
1761             ws->idx, rot ? "yes" : "no", flip ? "yes" : "no");
1762
1763         winno = count_win(ws, 0);
1764         if (winno == 0 && count_win(ws, 1) == 0)
1765                 return;
1766
1767         TAILQ_FOREACH(win, &ws->winlist, entry)
1768                 if (win->transient == 0 && win->floating == 0)
1769                         break;
1770
1771         if (win == NULL)
1772                 goto notiles;
1773
1774         if (rot) {
1775                 w_inc = win->sh.width_inc;
1776                 w_base = win->sh.base_width;
1777                 mwin = ws->l_state.horizontal_mwin;
1778                 mscale = ws->l_state.horizontal_msize;
1779                 stacks = ws->l_state.horizontal_stacks;
1780                 SWAPXY(&r_g);
1781         } else {
1782                 w_inc = win->sh.height_inc;
1783                 w_base = win->sh.base_height;
1784                 mwin = ws->l_state.vertical_mwin;
1785                 mscale = ws->l_state.vertical_msize;
1786                 stacks = ws->l_state.vertical_stacks;
1787         }
1788         win_g = r_g;
1789
1790         if (stacks > winno - mwin)
1791                 stacks = winno - mwin;
1792         if (stacks < 1)
1793                 stacks = 1;
1794
1795         h_slice = r_g.h / SWM_H_SLICE;
1796         if (mwin && winno > mwin) {
1797                 v_slice = r_g.w / SWM_V_SLICE;
1798
1799                 split = mwin;
1800                 colno = split;
1801                 win_g.w = v_slice * mscale;
1802
1803                 if (w_inc > 1 && w_inc < v_slice) {
1804                         /* adjust for window's requested size increment */
1805                         remain = (win_g.w - w_base) % w_inc;
1806                         missing = w_inc - remain;
1807                         win_g.w -= remain;
1808                         extra += remain;
1809                 }
1810
1811                 msize = win_g.w;
1812                 if (flip)
1813                         win_g.x += r_g.w - msize;
1814         } else {
1815                 msize = -2;
1816                 colno = split = winno / stacks;
1817                 win_g.w = ((r_g.w - (stacks * 2) + 2) / stacks);
1818         }
1819         hrh = r_g.h / colno;
1820         extra = r_g.h - (colno * hrh);
1821         win_g.h = hrh - 2;
1822
1823         /*  stack all the tiled windows */
1824         i = j = 0, s = stacks;
1825         TAILQ_FOREACH(win, &ws->winlist, entry) {
1826                 if (win->transient != 0 || win->floating != 0)
1827                         continue;
1828
1829                 if (split && i == split) {
1830                         colno = (winno - mwin) / stacks;
1831                         if (s <= (winno - mwin) % stacks)
1832                                 colno++;
1833                         split = split + colno;
1834                         hrh = (r_g.h / colno);
1835                         extra = r_g.h - (colno * hrh);
1836                         if (flip)
1837                                 win_g.x = r_g.x;
1838                         else
1839                                 win_g.x += win_g.w + 2;
1840                         win_g.w = (r_g.w - msize - (stacks * 2)) / stacks;
1841                         if (s == 1)
1842                                 win_g.w += (r_g.w - msize - (stacks * 2)) %
1843                                     stacks;
1844                         s--;
1845                         j = 0;
1846                 }
1847                 win_g.h = hrh - 2;
1848                 if (rot) {
1849                         h_inc = win->sh.width_inc;
1850                         h_base = win->sh.base_width;
1851                 } else {
1852                         h_inc = win->sh.height_inc;
1853                         h_base = win->sh.base_height;
1854                 }
1855                 if (j == colno - 1) {
1856                         win_g.h = hrh + extra;
1857                 } else if (h_inc > 1 && h_inc < h_slice) {
1858                         /* adjust for window's requested size increment */
1859                         remain = (win_g.h - h_base) % h_inc;
1860                         missing = h_inc - remain;
1861
1862                         if (missing <= extra || j == 0) {
1863                                 extra -= missing;
1864                                 win_g.h += missing;
1865                         } else {
1866                                 win_g.h -= remain;
1867                                 extra += remain;
1868                         }
1869                 }
1870
1871                 if (j == 0)
1872                         win_g.y = r_g.y;
1873                 else
1874                         win_g.y += last_h + 2;
1875
1876                 bzero(&wc, sizeof wc);
1877                 wc.border_width = 1;
1878                 if (rot) {
1879                         win->g.x = wc.x = win_g.y;
1880                         win->g.y = wc.y = win_g.x;
1881                         win->g.w = wc.width = win_g.h;
1882                         win->g.h = wc.height = win_g.w;
1883                 } else {
1884                         win->g.x = wc.x = win_g.x;
1885                         win->g.y = wc.y = win_g.y;
1886                         win->g.w = wc.width = win_g.w;
1887                         win->g.h = wc.height = win_g.h;
1888                 }
1889                 adjust_font(win);
1890                 mask = CWX | CWY | CWWidth | CWHeight | CWBorderWidth;
1891                 XConfigureWindow(display, win->id, mask, &wc);
1892                 XMapRaised(display, win->id);
1893
1894                 last_h = win_g.h;
1895                 i++;
1896                 j++;
1897         }
1898
1899  notiles:
1900         /* now, stack all the floaters and transients */
1901         TAILQ_FOREACH(win, &ws->winlist, entry) {
1902                 if (win->transient == 0 && win->floating == 0)
1903                         continue;
1904
1905                 stack_floater(win, ws->r);
1906                 XMapRaised(display, win->id);
1907         }
1908 }
1909
1910 void
1911 vertical_config(struct workspace *ws, int id)
1912 {
1913         DNPRINTF(SWM_D_STACK, "vertical_resize: workspace: %d\n", ws->idx);
1914
1915         switch (id) {
1916         case SWM_ARG_ID_STACKRESET:
1917         case SWM_ARG_ID_STACKINIT:
1918                 ws->l_state.vertical_msize = SWM_V_SLICE / 2;
1919                 ws->l_state.vertical_mwin = 1;
1920                 ws->l_state.vertical_stacks = 1;
1921                 break;
1922         case SWM_ARG_ID_MASTERSHRINK:
1923                 if (ws->l_state.vertical_msize > 1)
1924                         ws->l_state.vertical_msize--;
1925                 break;
1926         case SWM_ARG_ID_MASTERGROW:
1927                 if (ws->l_state.vertical_msize < SWM_V_SLICE - 1)
1928                         ws->l_state.vertical_msize++;
1929                 break;
1930         case SWM_ARG_ID_MASTERADD:
1931                 ws->l_state.vertical_mwin++;
1932                 break;
1933         case SWM_ARG_ID_MASTERDEL:
1934                 if (ws->l_state.vertical_mwin > 0)
1935                         ws->l_state.vertical_mwin--;
1936                 break;
1937         case SWM_ARG_ID_STACKINC:
1938                 ws->l_state.vertical_stacks++;
1939                 break;
1940         case SWM_ARG_ID_STACKDEC:
1941                 if (ws->l_state.vertical_stacks > 1)
1942                         ws->l_state.vertical_stacks--;
1943                 break;
1944         default:
1945                 return;
1946         }
1947 }
1948
1949 void
1950 vertical_stack(struct workspace *ws, struct swm_geometry *g)
1951 {
1952         DNPRINTF(SWM_D_STACK, "vertical_stack: workspace: %d\n", ws->idx);
1953
1954         stack_master(ws, g, 0, 0);
1955 }
1956
1957 void
1958 horizontal_config(struct workspace *ws, int id)
1959 {
1960         DNPRINTF(SWM_D_STACK, "horizontal_config: workspace: %d\n", ws->idx);
1961
1962         switch (id) {
1963         case SWM_ARG_ID_STACKRESET:
1964         case SWM_ARG_ID_STACKINIT:
1965                 ws->l_state.horizontal_mwin = 1;
1966                 ws->l_state.horizontal_msize = SWM_H_SLICE / 2;
1967                 ws->l_state.horizontal_stacks = 1;
1968                 break;
1969         case SWM_ARG_ID_MASTERSHRINK:
1970                 if (ws->l_state.horizontal_msize > 1)
1971                         ws->l_state.horizontal_msize--;
1972                 break;
1973         case SWM_ARG_ID_MASTERGROW:
1974                 if (ws->l_state.horizontal_msize < SWM_H_SLICE - 1)
1975                         ws->l_state.horizontal_msize++;
1976                 break;
1977         case SWM_ARG_ID_MASTERADD:
1978                 ws->l_state.horizontal_mwin++;
1979                 break;
1980         case SWM_ARG_ID_MASTERDEL:
1981                 if (ws->l_state.horizontal_mwin > 0)
1982                         ws->l_state.horizontal_mwin--;
1983                 break;
1984         case SWM_ARG_ID_STACKINC:
1985                 ws->l_state.horizontal_stacks++;
1986                 break;
1987         case SWM_ARG_ID_STACKDEC:
1988                 if (ws->l_state.horizontal_stacks > 1)
1989                         ws->l_state.horizontal_stacks--;
1990                 break;
1991         default:
1992                 return;
1993         }
1994 }
1995
1996 void
1997 horizontal_stack(struct workspace *ws, struct swm_geometry *g)
1998 {
1999         DNPRINTF(SWM_D_STACK, "vertical_stack: workspace: %d\n", ws->idx);
2000
2001         stack_master(ws, g, 1, 0);
2002 }
2003
2004 /* fullscreen view */
2005 void
2006 max_stack(struct workspace *ws, struct swm_geometry *g)
2007 {
2008         XWindowChanges          wc;
2009         struct swm_geometry     gg = *g;
2010         struct ws_win           *win, *wintrans = NULL;
2011         unsigned int            mask;
2012         int                     winno;
2013
2014         DNPRINTF(SWM_D_STACK, "max_stack: workspace: %d\n", ws->idx);
2015
2016         if (ws == NULL)
2017                 return;
2018
2019         winno = count_win(ws, 0);
2020         if (winno == 0 && count_win(ws, 1) == 0)
2021                 return;
2022
2023         TAILQ_FOREACH(win, &ws->winlist, entry) {
2024                 if (win->transient != 0) {
2025                         wintrans = win;
2026                 } else {
2027                         bzero(&wc, sizeof wc);
2028                         wc.border_width = 1;
2029                         win->g.x = wc.x = gg.x;
2030                         win->g.y = wc.y = gg.y;
2031                         win->g.w = wc.width = gg.w;
2032                         win->g.h = wc.height = gg.h;
2033                         mask = CWX | CWY | CWWidth | CWHeight | CWBorderWidth;
2034                         XConfigureWindow(display, win->id, mask, &wc);
2035
2036                         /* unmap only if we don't have multi screen */
2037                         if (win != ws->focus)
2038                                 if (!(ScreenCount(display) > 1 || outputs > 1))
2039                                         unmap_window(win);
2040                 }
2041         }
2042
2043         /* put the last transient on top */
2044         if (wintrans) {
2045                 stack_floater(wintrans, ws->r);
2046                 focus_win(wintrans); /* override */
2047         }
2048 }
2049
2050 void
2051 send_to_ws(struct swm_region *r, union arg *args)
2052 {
2053         int                     wsid = args->id;
2054         struct ws_win           *win = win, *winfocus = NULL;
2055         struct workspace        *ws, *nws;
2056         Atom                    ws_idx_atom = 0;
2057         unsigned char           ws_idx_str[SWM_PROPLEN];
2058
2059         if (r && r->ws)
2060                 win = r->ws->focus;
2061         else
2062                 return;
2063         if (win == NULL)
2064                 return;
2065
2066         DNPRINTF(SWM_D_MOVE, "send_to_ws: win: %lu\n", win->id);
2067
2068         ws = win->ws;
2069         nws = &win->s->ws[wsid];
2070
2071         /* find a window to focus */
2072         winfocus = TAILQ_PREV(win, ws_win_list, entry);
2073         if (TAILQ_FIRST(&ws->winlist) == win)
2074                 winfocus = TAILQ_NEXT(win, entry);
2075         else {
2076                 winfocus = TAILQ_PREV(win, ws_win_list, entry);
2077                 if (winfocus == NULL)
2078                         winfocus = TAILQ_LAST(&ws->winlist, ws_win_list);
2079         }
2080         /* out of windows in ws so focus on nws instead if we multi screen */
2081         if (winfocus == NULL)
2082                 if (ScreenCount(display) > 1 || outputs > 1)
2083                         winfocus = win;
2084
2085         unmap_window(win);
2086         TAILQ_REMOVE(&ws->winlist, win, entry);
2087         TAILQ_INSERT_TAIL(&nws->winlist, win, entry);
2088         win->ws = nws;
2089
2090         /* Try to update the window's workspace property */
2091         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
2092         if (ws_idx_atom &&
2093             snprintf(ws_idx_str, SWM_PROPLEN, "%d", nws->idx) < SWM_PROPLEN) {
2094                 DNPRINTF(SWM_D_PROP, "setting property _SWM_WS to %s\n",
2095                     ws_idx_str);
2096                 XChangeProperty(display, win->id, ws_idx_atom, XA_STRING, 8,
2097                     PropModeReplace, ws_idx_str, SWM_PROPLEN);
2098         }
2099
2100         if (count_win(nws, 1) == 1)
2101                 nws->focus = win;
2102         ws->restack = 1;
2103         nws->restack = 1;
2104
2105         stack();
2106         if (winfocus)
2107                 focus_win(winfocus);
2108 }
2109
2110 void
2111 wkill(struct swm_region *r, union arg *args)
2112 {
2113         DNPRINTF(SWM_D_MISC, "wkill %d\n", args->id);
2114
2115         if(r->ws->focus == NULL)
2116                 return;
2117
2118         if (args->id == SWM_ARG_ID_KILLWINDOW)
2119                 XKillClient(display, r->ws->focus->id);
2120         else
2121                 if (r->ws->focus->can_delete)
2122                         client_msg(r->ws->focus, adelete);
2123 }
2124
2125 void
2126 floating_toggle(struct swm_region *r, union arg *args)
2127 {
2128         struct ws_win   *win = r->ws->focus;
2129
2130         if (win == NULL)
2131                 return;
2132
2133         win->floating = !win->floating;
2134         win->manual = 0;
2135         stack();
2136         focus_win(win);
2137 }
2138
2139 void
2140 resize_window(struct ws_win *win, int center)
2141 {
2142         unsigned int            mask;
2143         XWindowChanges          wc;
2144         struct swm_region       *r;
2145
2146         r = root_to_region(win->wa.root);
2147         bzero(&wc, sizeof wc);
2148         mask = CWBorderWidth | CWWidth | CWHeight;
2149         wc.border_width = 1;
2150         wc.width = win->g.w;
2151         wc.height = win->g.h;
2152         if (center == SWM_ARG_ID_CENTER) {
2153                 wc.x = (WIDTH(r) - win->g.w) / 2;
2154                 wc.y = (HEIGHT(r) - win->g.h) / 2;
2155                 mask |= CWX | CWY;
2156         }
2157
2158         DNPRINTF(SWM_D_STACK, "resize_window: win %lu x %d y %d w %d h %d\n",
2159             win->id, wc.x, wc.y, wc.width, wc.height);
2160
2161         XConfigureWindow(display, win->id, mask, &wc);
2162         config_win(win);
2163 }
2164
2165 void
2166 resize(struct ws_win *win, union arg *args)
2167 {
2168         XEvent                  ev;
2169         Time                    time = 0;
2170
2171         DNPRINTF(SWM_D_MOUSE, "resize: win %lu floating %d trans %d\n",
2172             win->id, win->floating, win->transient);
2173
2174         if (!(win->transient != 0 || win->floating != 0))
2175                 return;
2176
2177         if (XGrabPointer(display, win->id, False, MOUSEMASK, GrabModeAsync,
2178             GrabModeAsync, None, None /* cursor */, CurrentTime) != GrabSuccess)
2179                 return;
2180         XWarpPointer(display, None, win->id, 0, 0, 0, 0, win->g.w, win->g.h);
2181         do {
2182                 XMaskEvent(display, MOUSEMASK | ExposureMask |
2183                     SubstructureRedirectMask, &ev);
2184                 switch(ev.type) {
2185                 case ConfigureRequest:
2186                 case Expose:
2187                 case MapRequest:
2188                         handler[ev.type](&ev);
2189                         break;
2190                 case MotionNotify:
2191                         if (ev.xmotion.x <= 1)
2192                                 ev.xmotion.x = 1;
2193                         if (ev.xmotion.y <= 1)
2194                                 ev.xmotion.y = 1;
2195                         win->g.w = ev.xmotion.x;
2196                         win->g.h = ev.xmotion.y;
2197
2198                         /* not free, don't sync more than 60 times / second */
2199                         if ((ev.xmotion.time - time) > (1000 / 60) ) {
2200                                 time = ev.xmotion.time;
2201                                 XSync(display, False);
2202                                 resize_window(win, args->id);
2203                         }
2204                         break;
2205                 }
2206         } while (ev.type != ButtonRelease);
2207         if (time) {
2208                 XSync(display, False);
2209                 resize_window(win, args->id);
2210         }
2211         XWarpPointer(display, None, win->id, 0, 0, 0, 0, win->g.w - 1,
2212             win->g.h - 1);
2213         XUngrabPointer(display, CurrentTime);
2214
2215         /* drain events */
2216         while (XCheckMaskEvent(display, EnterWindowMask, &ev));
2217 }
2218
2219 void
2220 move_window(struct ws_win *win)
2221 {
2222         unsigned int            mask;
2223         XWindowChanges          wc;
2224         struct swm_region       *r;
2225
2226         r = root_to_region(win->wa.root);
2227         bzero(&wc, sizeof wc);
2228         mask = CWX | CWY;
2229         wc.x = win->g.x;
2230         wc.y = win->g.y;
2231
2232         DNPRINTF(SWM_D_STACK, "move_window: win %lu x %d y %d w %d h %d\n",
2233             win->id, wc.x, wc.y, wc.width, wc.height);
2234
2235         XConfigureWindow(display, win->id, mask, &wc);
2236         config_win(win);
2237 }
2238
2239 void
2240 move(struct ws_win *win, union arg *args)
2241 {
2242         XEvent                  ev;
2243         Time                    time = 0;
2244         int                     restack = 0;
2245
2246         DNPRINTF(SWM_D_MOUSE, "move: win %lu floating %d trans %d\n",
2247             win->id, win->floating, win->transient);
2248
2249         if (win->floating == 0) {
2250                 win->floating = 1;
2251                 win->manual = 1;
2252                 restack = 1;
2253         }
2254
2255         if (XGrabPointer(display, win->id, False, MOUSEMASK, GrabModeAsync,
2256             GrabModeAsync, None, None /* cursor */, CurrentTime) != GrabSuccess)
2257                 return;
2258         XWarpPointer(display, None, win->id, 0, 0, 0, 0, 0, 0);
2259         do {
2260                 XMaskEvent(display, MOUSEMASK | ExposureMask |
2261                     SubstructureRedirectMask, &ev);
2262                 switch(ev.type) {
2263                 case ConfigureRequest:
2264                 case Expose:
2265                 case MapRequest:
2266                         handler[ev.type](&ev);
2267                         break;
2268                 case MotionNotify:
2269                         win->g.x = ev.xmotion.x_root;
2270                         win->g.y = ev.xmotion.y_root;
2271
2272                         /* not free, don't sync more than 60 times / second */
2273                         if ((ev.xmotion.time - time) > (1000 / 60) ) {
2274                                 time = ev.xmotion.time;
2275                                 XSync(display, False);
2276                                 move_window(win);
2277                         }
2278                         break;
2279                 }
2280         } while (ev.type != ButtonRelease);
2281         if (time) {
2282                 XSync(display, False);
2283                 move_window(win);
2284         }
2285         XWarpPointer(display, None, win->id, 0, 0, 0, 0, 0, 0);
2286         XUngrabPointer(display, CurrentTime);
2287         if (restack)
2288                 stack();
2289
2290         /* drain events */
2291         while (XCheckMaskEvent(display, EnterWindowMask, &ev));
2292 }
2293
2294 /* key definitions */
2295 void
2296 dummykeyfunc(struct swm_region *r, union arg *args)
2297 {
2298 };
2299
2300 void
2301 legacyfunc(struct swm_region *r, union arg *args)
2302 {
2303 };
2304
2305 struct keyfunc {
2306         char                    name[SWM_FUNCNAME_LEN];
2307         void                    (*func)(struct swm_region *r, union arg *);
2308         union arg               args;
2309 } keyfuncs[kf_invalid + 1] = {
2310         /* name                 function        argument */
2311         { "cycle_layout",       cycle_layout,   {0} },
2312         { "stack_reset",        stack_config,   {.id = SWM_ARG_ID_STACKRESET} },
2313         { "master_shrink",      stack_config,   {.id = SWM_ARG_ID_MASTERSHRINK} },
2314         { "master_grow",        stack_config,   {.id = SWM_ARG_ID_MASTERGROW} },
2315         { "master_add",         stack_config,   {.id = SWM_ARG_ID_MASTERADD} },
2316         { "master_del",         stack_config,   {.id = SWM_ARG_ID_MASTERDEL} },
2317         { "stack_inc",          stack_config,   {.id = SWM_ARG_ID_STACKINC} },
2318         { "stack_dec",          stack_config,   {.id = SWM_ARG_ID_STACKDEC} },
2319         { "swap_main",          swapwin,        {.id = SWM_ARG_ID_SWAPMAIN} },
2320         { "focus_next",         focus,          {.id = SWM_ARG_ID_FOCUSNEXT} },
2321         { "focus_prev",         focus,          {.id = SWM_ARG_ID_FOCUSPREV} },
2322         { "swap_next",          swapwin,        {.id = SWM_ARG_ID_SWAPNEXT} },
2323         { "swap_prev",          swapwin,        {.id = SWM_ARG_ID_SWAPPREV} },
2324         { "spawn_term",         spawnterm,      {.argv = spawn_term} },
2325         { "spawn_menu",         legacyfunc,     {0} },
2326         { "quit",               quit,           {0} },
2327         { "restart",            restart,        {0} },
2328         { "focus_main",         focus,          {.id = SWM_ARG_ID_FOCUSMAIN} },
2329         { "ws_1",               switchws,       {.id = 0} },
2330         { "ws_2",               switchws,       {.id = 1} },
2331         { "ws_3",               switchws,       {.id = 2} },
2332         { "ws_4",               switchws,       {.id = 3} },
2333         { "ws_5",               switchws,       {.id = 4} },
2334         { "ws_6",               switchws,       {.id = 5} },
2335         { "ws_7",               switchws,       {.id = 6} },
2336         { "ws_8",               switchws,       {.id = 7} },
2337         { "ws_9",               switchws,       {.id = 8} },
2338         { "ws_10",              switchws,       {.id = 9} },
2339         { "ws_next",            cyclews,        {.id = SWM_ARG_ID_CYCLEWS_UP} },
2340         { "ws_prev",            cyclews,        {.id = SWM_ARG_ID_CYCLEWS_DOWN} },
2341         { "screen_next",        cyclescr,       {.id = SWM_ARG_ID_CYCLESC_UP} },
2342         { "screen_prev",        cyclescr,       {.id = SWM_ARG_ID_CYCLESC_DOWN} },
2343         { "mvws_1",             send_to_ws,     {.id = 0} },
2344         { "mvws_2",             send_to_ws,     {.id = 1} },
2345         { "mvws_3",             send_to_ws,     {.id = 2} },
2346         { "mvws_4",             send_to_ws,     {.id = 3} },
2347         { "mvws_5",             send_to_ws,     {.id = 4} },
2348         { "mvws_6",             send_to_ws,     {.id = 5} },
2349         { "mvws_7",             send_to_ws,     {.id = 6} },
2350         { "mvws_8",             send_to_ws,     {.id = 7} },
2351         { "mvws_9",             send_to_ws,     {.id = 8} },
2352         { "mvws_10",            send_to_ws,     {.id = 9} },
2353         { "bar_toggle",         bar_toggle,     {0} },
2354         { "wind_kill",          wkill,          {.id = SWM_ARG_ID_KILLWINDOW} },
2355         { "wind_del",           wkill,          {.id = SWM_ARG_ID_DELETEWINDOW} },
2356         { "screenshot_all",     legacyfunc,     {0} },
2357         { "screenshot_wind",    legacyfunc,     {0} },
2358         { "float_toggle",       floating_toggle,{0} },
2359         { "version",            version,        {0} },
2360         { "spawn_lock",         legacyfunc,     {0} },
2361         { "spawn_initscr",      legacyfunc,     {0} },
2362         { "spawn_custom",       dummykeyfunc,   {0} },
2363         { "invalid key func",   NULL,           {0} },
2364 };
2365 struct key {
2366         unsigned int            mod;
2367         KeySym                  keysym;
2368         enum keyfuncid          funcid;
2369         char                    *spawn_name;
2370 };
2371 int                             keys_size = 0, keys_length = 0;
2372 struct key                      *keys = NULL;
2373
2374 /* mouse */
2375 enum { client_click, root_click };
2376 struct button {
2377         unsigned int            action;
2378         unsigned int            mask;
2379         unsigned int            button;
2380         void                    (*func)(struct ws_win *, union arg *);
2381         union arg               args;
2382 } buttons[] = {
2383           /* action     key             mouse button    func    args */
2384         { client_click, MODKEY,         Button3,        resize, {.id = SWM_ARG_ID_DONTCENTER} },
2385         { client_click, MODKEY | ShiftMask, Button3,    resize, {.id = SWM_ARG_ID_CENTER} },
2386         { client_click, MODKEY,         Button1,        move,   {0} },
2387 };
2388
2389 void
2390 update_modkey(unsigned int mod)
2391 {
2392         int                     i;
2393
2394         mod_key = mod;
2395         for (i = 0; i < keys_length; i++)
2396                 if (keys[i].mod & ShiftMask)
2397                         keys[i].mod = mod | ShiftMask;
2398                 else
2399                         keys[i].mod = mod;
2400
2401         for (i = 0; i < LENGTH(buttons); i++)
2402                 if (buttons[i].mask & ShiftMask)
2403                         buttons[i].mask = mod | ShiftMask;
2404                 else
2405                         buttons[i].mask = mod;
2406 }
2407
2408 /* spawn */
2409 struct spawn_prog {
2410         char                    *name;
2411         int                     argc;
2412         char                    **argv;
2413 };
2414
2415 int                             spawns_size = 0, spawns_length = 0;
2416 struct spawn_prog               *spawns = NULL;
2417
2418 void
2419 spawn_custom(struct swm_region *r, union arg *args, char *spawn_name)
2420 {
2421         union arg               a;
2422         struct spawn_prog       *prog = NULL;
2423         int                     i;
2424         char                    *ap, **real_args;
2425
2426         DNPRINTF(SWM_D_SPAWN, "spawn_custom %s\n", spawn_name);
2427
2428         /* find program */
2429         for (i = 0; i < spawns_length; i++) {
2430                 if (!strcasecmp(spawn_name, spawns[i].name))
2431                         prog = &spawns[i];
2432         }
2433         if (prog == NULL) {
2434                 fprintf(stderr, "spawn_custom: program %s not found\n",
2435                     spawn_name);
2436                 return;
2437         }
2438
2439         /* make room for expanded args */
2440         if ((real_args = calloc(prog->argc + 1, sizeof(char *))) == NULL)
2441                 err(1, "spawn_custom: calloc real_args");
2442
2443         /* expand spawn_args into real_args */
2444         for (i = 0; i < prog->argc; i++) {
2445                 ap = prog->argv[i];
2446                 DNPRINTF(SWM_D_SPAWN, "spawn_custom: raw arg = %s\n", ap);
2447                 if (!strcasecmp(ap, "$bar_border")) {
2448                         if ((real_args[i] =
2449                             strdup(r->s->c[SWM_S_COLOR_BAR_BORDER].name))
2450                             == NULL)
2451                                 err(1,  "spawn_custom border color");
2452                 } else if (!strcasecmp(ap, "$bar_color")) {
2453                         if ((real_args[i] =
2454                             strdup(r->s->c[SWM_S_COLOR_BAR].name))
2455                             == NULL)
2456                                 err(1, "spawn_custom bar color");
2457                 } else if (!strcasecmp(ap, "$bar_font")) {
2458                         if ((real_args[i] = strdup(bar_fonts[bar_fidx]))
2459                             == NULL)
2460                                 err(1, "spawn_custom bar fonts");
2461                 } else if (!strcasecmp(ap, "$bar_font_color")) {
2462                         if ((real_args[i] =
2463                             strdup(r->s->c[SWM_S_COLOR_BAR_FONT].name))
2464                             == NULL)
2465                                 err(1, "spawn_custom color font");
2466                 } else if (!strcasecmp(ap, "$color_focus")) {
2467                         if ((real_args[i] =
2468                             strdup(r->s->c[SWM_S_COLOR_FOCUS].name))
2469                             == NULL)
2470                                 err(1, "spawn_custom color focus");
2471                 } else if (!strcasecmp(ap, "$color_unfocus")) {
2472                         if ((real_args[i] =
2473                             strdup(r->s->c[SWM_S_COLOR_UNFOCUS].name))
2474                             == NULL)
2475                                 err(1, "spawn_custom color unfocus");
2476                 } else {
2477                         /* no match --> copy as is */
2478                         if ((real_args[i] = strdup(ap)) == NULL)
2479                                 err(1, "spawn_custom strdup(ap)");
2480                 }
2481                 DNPRINTF(SWM_D_SPAWN, "spawn_custom: cooked arg = %s\n",
2482                     real_args[i]);
2483         }
2484
2485 #ifdef SWM_DEBUG
2486         if ((swm_debug & SWM_D_SPAWN) != 0) {
2487                 fprintf(stderr, "spawn_custom: result = ");
2488                 for (i = 0; i < prog->argc; i++)
2489                         fprintf(stderr, "\"%s\" ", real_args[i]);
2490                 fprintf(stderr, "\n");
2491         }
2492 #endif
2493
2494         a.argv = real_args;
2495         spawn(r, &a);
2496         for (i = 0; i < prog->argc; i++)
2497                 free(real_args[i]);
2498         free(real_args);
2499 }
2500
2501 void
2502 setspawn(struct spawn_prog *prog)
2503 {
2504         int                     i, j;
2505
2506         if (prog == NULL || prog->name == NULL)
2507                 return;
2508
2509         /* find existing */
2510         for (i = 0; i < spawns_length; i++) {
2511                 if (!strcmp(spawns[i].name, prog->name)) {
2512                         /* found */
2513                         if (prog->argv == NULL) {
2514                                 /* delete */
2515                                 DNPRINTF(SWM_D_SPAWN,
2516                                     "setspawn: delete #%d %s\n",
2517                                     i, spawns[i].name);
2518                                 free(spawns[i].name);
2519                                 for (j = 0; j < spawns[i].argc; j++)
2520                                         free(spawns[i].argv[j]);
2521                                 free(spawns[i].argv);
2522                                 j = spawns_length - 1;
2523                                 if (i < j)
2524                                         spawns[i] = spawns[j];
2525                                 spawns_length--;
2526                                 free(prog->name);
2527                         } else {
2528                                 /* replace */
2529                                 DNPRINTF(SWM_D_SPAWN,
2530                                     "setspawn: replace #%d %s\n",
2531                                     i, spawns[i].name);
2532                                 free(spawns[i].name);
2533                                 for (j = 0; j < spawns[i].argc; j++)
2534                                         free(spawns[i].argv[j]);
2535                                 free(spawns[i].argv);
2536                                 spawns[i] = *prog;
2537                         }
2538                         /* found case handled */
2539                         free(prog);
2540                         return;
2541                 }
2542         }
2543
2544         if (prog->argv == NULL) {
2545                 fprintf(stderr,
2546                     "error: setspawn: cannot find program %s", prog->name);
2547                 free(prog);
2548                 return;
2549         }
2550
2551         /* not found: add */
2552         if (spawns_size == 0 || spawns == NULL) {
2553                 spawns_size = 4;
2554                 DNPRINTF(SWM_D_SPAWN, "setspawn: init list %d\n", spawns_size);
2555                 spawns = malloc((size_t)spawns_size *
2556                     sizeof(struct spawn_prog));
2557                 if (spawns == NULL) {
2558                         fprintf(stderr, "setspawn: malloc failed\n");
2559                         perror(" failed");
2560                         quit(NULL, NULL);
2561                 }
2562         } else if (spawns_length == spawns_size) {
2563                 spawns_size *= 2;
2564                 DNPRINTF(SWM_D_SPAWN, "setspawn: grow list %d\n", spawns_size);
2565                 spawns = realloc(spawns, (size_t)spawns_size *
2566                     sizeof(struct spawn_prog));
2567                 if (spawns == NULL) {
2568                         fprintf(stderr, "setspawn: realloc failed\n");
2569                         perror(" failed");
2570                         quit(NULL, NULL);
2571                 }
2572         }
2573
2574         if (spawns_length < spawns_size) {
2575                 DNPRINTF(SWM_D_SPAWN, "setspawn: add #%d %s\n",
2576                     spawns_length, prog->name);
2577                 i = spawns_length++;
2578                 spawns[i] = *prog;
2579         } else {
2580                 fprintf(stderr, "spawns array problem?\n");
2581                 if (spawns == NULL) {
2582                         fprintf(stderr, "spawns array is NULL!\n");
2583                         quit(NULL, NULL);
2584                 }
2585         }
2586         free(prog);
2587 }
2588
2589 int
2590 setconfspawn(char *selector, char *value, int flags)
2591 {
2592         struct spawn_prog       *prog;
2593         char                    *vp, *cp, *word;
2594
2595         DNPRINTF(SWM_D_SPAWN, "setconfspawn: [%s] [%s]\n", selector, value);
2596         if ((prog = calloc(1, sizeof *prog)) == NULL)
2597                 err(1, "setconfspawn: calloc prog");
2598         prog->name = strdup(selector);
2599         if (prog->name == NULL)
2600                 err(1, "setconfspawn prog->name");
2601         if ((cp = vp = strdup(value)) == NULL)
2602                 err(1, "setconfspawn: strdup(value) ");
2603         while ((word = strsep(&cp, " \t")) != NULL) {
2604                 DNPRINTF(SWM_D_SPAWN, "setconfspawn: arg [%s]\n", word);
2605                 if (cp)
2606                         cp += (long)strspn(cp, " \t");
2607                 if (strlen(word) > 0) {
2608                         prog->argc++;
2609                         prog->argv = realloc(prog->argv,
2610                             prog->argc * sizeof(char *));
2611                         if ((prog->argv[prog->argc - 1] = strdup(word)) == NULL)
2612                                 err(1, "setconfspawn: strdup");
2613                 }
2614         }
2615         free(vp);
2616
2617         setspawn(prog);
2618
2619         DNPRINTF(SWM_D_SPAWN, "setconfspawn: done\n");
2620         return (0);
2621 }
2622
2623 void
2624 setup_spawn(void)
2625 {
2626         setconfspawn("term",            "xterm",                0);
2627         setconfspawn("screenshot_all",  "screenshot.sh full",   0);
2628         setconfspawn("screenshot_wind", "screenshot.sh window", 0);
2629         setconfspawn("lock",            "xlock",                0);
2630         setconfspawn("initscr",         "initscreen.sh",        0);
2631         setconfspawn("menu",            "dmenu_run"
2632                                         " -fn $bar_font"
2633                                         " -nb $bar_color"
2634                                         " -nf $bar_font_color"
2635                                         " -sb $bar_border"
2636                                         " -sf $bar_color",      0);
2637 }
2638
2639 /* key bindings */
2640 #define SWM_MODNAME_SIZE        32
2641 #define SWM_KEY_WS              "\n+ \t"
2642 int
2643 parsekeys(char *keystr, unsigned int currmod, unsigned int *mod, KeySym *ks)
2644 {
2645         char                    *cp, *name;
2646         KeySym                  uks;
2647         DNPRINTF(SWM_D_KEY, "parsekeys: enter [%s]\n", keystr);
2648         if (mod == NULL || ks == NULL) {
2649                 DNPRINTF(SWM_D_KEY, "parsekeys: no mod or key vars\n");
2650                 return (1);
2651         }
2652         if (keystr == NULL || strlen(keystr) == 0) {
2653                 DNPRINTF(SWM_D_KEY, "parsekeys: no keystr\n");
2654                 return (1);
2655         }
2656         cp = keystr;
2657         *ks = NoSymbol;
2658         *mod = 0;
2659         while ((name = strsep(&cp, SWM_KEY_WS)) != NULL) {
2660                 DNPRINTF(SWM_D_KEY, "parsekeys: key [%s]\n", name);
2661                 if (cp)
2662                         cp += (long)strspn(cp, SWM_KEY_WS);
2663                 if (strncasecmp(name, "MOD", SWM_MODNAME_SIZE) == 0)
2664                         *mod |= currmod;
2665                 else if (!strncasecmp(name, "Mod1", SWM_MODNAME_SIZE))
2666                         *mod |= Mod1Mask;
2667                 else if (!strncasecmp(name, "Mod2", SWM_MODNAME_SIZE))
2668                         *mod += Mod2Mask;
2669                 else if (!strncmp(name, "Mod3", SWM_MODNAME_SIZE))
2670                         *mod |= Mod3Mask;
2671                 else if (!strncmp(name, "Mod4", SWM_MODNAME_SIZE))
2672                         *mod |= Mod4Mask;
2673                 else if (strncasecmp(name, "SHIFT", SWM_MODNAME_SIZE) == 0)
2674                         *mod |= ShiftMask;
2675                 else if (strncasecmp(name, "CONTROL", SWM_MODNAME_SIZE) == 0)
2676                         *mod |= ControlMask;
2677                 else {
2678                         *ks = XStringToKeysym(name);
2679                         XConvertCase(*ks, ks, &uks);
2680                         if (ks == NoSymbol) {
2681                                 DNPRINTF(SWM_D_KEY,
2682                                     "parsekeys: invalid key %s\n",
2683                                     name);
2684                                 return (1);
2685                         }
2686                 }
2687         }
2688         DNPRINTF(SWM_D_KEY, "parsekeys: leave ok\n");
2689         return (0);
2690 }
2691
2692 char *
2693 strdupsafe(char *str)
2694 {
2695         if (str == NULL)
2696                 return (NULL);
2697         else
2698                 return (strdup(str));
2699 }
2700
2701 void
2702 setkeybinding(unsigned int mod, KeySym ks, enum keyfuncid kfid, char *spawn_name)
2703 {
2704         int                     i, j;
2705         DNPRINTF(SWM_D_KEY, "setkeybinding: enter %s [%s]\n",
2706             keyfuncs[kfid].name, spawn_name);
2707         /* find existing */
2708         for (i = 0; i < keys_length; i++) {
2709                 if (keys[i].mod == mod && keys[i].keysym == ks) {
2710                         if (kfid == kf_invalid) {
2711                                 /* found: delete */
2712                                 DNPRINTF(SWM_D_KEY,
2713                                     "setkeybinding: delete #%d %s\n",
2714                                     i, keyfuncs[keys[i].funcid].name);
2715                                 free(keys[i].spawn_name);
2716                                 j = keys_length - 1;
2717                                 if (i < j)
2718                                         keys[i] = keys[j];
2719                                 keys_length--;
2720                                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2721                                 return;
2722                         } else {
2723                                 /* found: replace */
2724                                 DNPRINTF(SWM_D_KEY,
2725                                     "setkeybinding: replace #%d %s %s\n",
2726                                     i, keyfuncs[keys[i].funcid].name,
2727                                     spawn_name);
2728                                 free(keys[i].spawn_name);
2729                                 keys[i].mod = mod;
2730                                 keys[i].keysym = ks;
2731                                 keys[i].funcid = kfid;
2732                                 keys[i].spawn_name = strdupsafe(spawn_name);
2733                                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2734                                 return;
2735                         }
2736                 }
2737         }
2738         if (kfid == kf_invalid) {
2739                 fprintf(stderr,
2740                     "error: setkeybinding: cannot find mod/key combination");
2741                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2742                 return;
2743         }
2744         /* not found: add */
2745         if (keys_size == 0 || keys == NULL) {
2746                 keys_size = 4;
2747                 DNPRINTF(SWM_D_KEY, "setkeybinding: init list %d\n", keys_size);
2748                 keys = malloc((size_t)keys_size * sizeof(struct key));
2749                 if (!keys) {
2750                         fprintf(stderr, "malloc failed\n");
2751                         perror(" failed");
2752                         quit(NULL, NULL);
2753                 }
2754         } else if (keys_length == keys_size) {
2755                 keys_size *= 2;
2756                 DNPRINTF(SWM_D_KEY, "setkeybinding: grow list %d\n", keys_size);
2757                 keys = realloc(keys, (size_t)keys_size * sizeof(struct key));
2758                 if (!keys) {
2759                         fprintf(stderr, "realloc failed\n");
2760                         perror(" failed");
2761                         quit(NULL, NULL);
2762                 }
2763         }
2764         if (keys_length < keys_size) {
2765                 j = keys_length++;
2766                 DNPRINTF(SWM_D_KEY, "setkeybinding: add #%d %s %s\n",
2767                     j, keyfuncs[kfid].name, spawn_name);
2768                 keys[j].mod = mod;
2769                 keys[j].keysym = ks;
2770                 keys[j].funcid = kfid;
2771                 keys[j].spawn_name = strdupsafe(spawn_name);
2772         } else {
2773                 fprintf(stderr, "keys array problem?\n");
2774                 if (!keys) {
2775                         fprintf(stderr, "keys array problem\n");
2776                         quit(NULL, NULL);
2777                 }
2778         }
2779         DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2780 }
2781
2782 int
2783 setconfbinding(char *selector, char *value, int flags)
2784 {
2785         enum keyfuncid          kfid;
2786         unsigned int            mod;
2787         KeySym                  ks;
2788         int                     i;
2789         DNPRINTF(SWM_D_KEY, "setconfbinding: enter\n");
2790         if (selector == NULL) {
2791                 DNPRINTF(SWM_D_KEY, "setconfbinding: unbind %s\n", value);
2792                 if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2793                         kfid = kf_invalid;
2794                         setkeybinding(mod, ks, kfid, NULL);
2795                         return (0);
2796                 } else
2797                         return (1);
2798         }
2799         /* search by key function name */
2800         for (kfid = 0; kfid < kf_invalid; (kfid)++) {
2801                 if (strncasecmp(selector, keyfuncs[kfid].name,
2802                     SWM_FUNCNAME_LEN) == 0) {
2803                         DNPRINTF(SWM_D_KEY, "setconfbinding: %s: match\n",
2804                             selector);
2805                         if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2806                                 setkeybinding(mod, ks, kfid, NULL);
2807                                 return (0);
2808                         } else
2809                                 return (1);
2810                 }
2811         }
2812         /* search by custom spawn name */
2813         for (i = 0; i < spawns_length; i++) {
2814                 if (strcasecmp(selector, spawns[i].name) == 0) {
2815                         DNPRINTF(SWM_D_KEY, "setconfbinding: %s: match\n",
2816                             selector);
2817                         if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2818                                 setkeybinding(mod, ks, kf_spawn_custom,
2819                                     spawns[i].name);
2820                                 return (0);
2821                         } else
2822                                 return (1);
2823                 }
2824         }
2825         DNPRINTF(SWM_D_KEY, "setconfbinding: no match\n");
2826         return (1);
2827 }
2828
2829 void
2830 setup_keys(void)
2831 {
2832         setkeybinding(MODKEY,           XK_space,       kf_cycle_layout,NULL);
2833         setkeybinding(MODKEY|ShiftMask, XK_space,       kf_stack_reset, NULL);
2834         setkeybinding(MODKEY,           XK_h,           kf_master_shrink,NULL);
2835         setkeybinding(MODKEY,           XK_l,           kf_master_grow, NULL);
2836         setkeybinding(MODKEY,           XK_comma,       kf_master_add,  NULL);
2837         setkeybinding(MODKEY,           XK_period,      kf_master_del,  NULL);
2838         setkeybinding(MODKEY|ShiftMask, XK_comma,       kf_stack_inc,   NULL);
2839         setkeybinding(MODKEY|ShiftMask, XK_period,      kf_stack_dec,   NULL);
2840         setkeybinding(MODKEY,           XK_Return,      kf_swap_main,   NULL);
2841         setkeybinding(MODKEY,           XK_j,           kf_focus_next,  NULL);
2842         setkeybinding(MODKEY,           XK_k,           kf_focus_prev,  NULL);
2843         setkeybinding(MODKEY|ShiftMask, XK_j,           kf_swap_next,   NULL);
2844         setkeybinding(MODKEY|ShiftMask, XK_k,           kf_swap_prev,   NULL);
2845         setkeybinding(MODKEY|ShiftMask, XK_Return,      kf_spawn_term,  NULL);
2846         setkeybinding(MODKEY,           XK_p,           kf_spawn_custom,        "menu");
2847         setkeybinding(MODKEY|ShiftMask, XK_q,           kf_quit,        NULL);
2848         setkeybinding(MODKEY,           XK_q,           kf_restart,     NULL);
2849         setkeybinding(MODKEY,           XK_m,           kf_focus_main,  NULL);
2850         setkeybinding(MODKEY,           XK_1,           kf_ws_1,        NULL);
2851         setkeybinding(MODKEY,           XK_2,           kf_ws_2,        NULL);
2852         setkeybinding(MODKEY,           XK_3,           kf_ws_3,        NULL);
2853         setkeybinding(MODKEY,           XK_4,           kf_ws_4,        NULL);
2854         setkeybinding(MODKEY,           XK_5,           kf_ws_5,        NULL);
2855         setkeybinding(MODKEY,           XK_6,           kf_ws_6,        NULL);
2856         setkeybinding(MODKEY,           XK_7,           kf_ws_7,        NULL);
2857         setkeybinding(MODKEY,           XK_8,           kf_ws_8,        NULL);
2858         setkeybinding(MODKEY,           XK_9,           kf_ws_9,        NULL);
2859         setkeybinding(MODKEY,           XK_0,           kf_ws_10,       NULL);
2860         setkeybinding(MODKEY,           XK_Right,       kf_ws_next,     NULL);
2861         setkeybinding(MODKEY,           XK_Left,        kf_ws_prev,     NULL);
2862         setkeybinding(MODKEY|ShiftMask, XK_Right,       kf_screen_next, NULL);
2863         setkeybinding(MODKEY|ShiftMask, XK_Left,        kf_screen_prev, NULL);
2864         setkeybinding(MODKEY|ShiftMask, XK_1,           kf_mvws_1,      NULL);
2865         setkeybinding(MODKEY|ShiftMask, XK_2,           kf_mvws_2,      NULL);
2866         setkeybinding(MODKEY|ShiftMask, XK_3,           kf_mvws_3,      NULL);
2867         setkeybinding(MODKEY|ShiftMask, XK_4,           kf_mvws_4,      NULL);
2868         setkeybinding(MODKEY|ShiftMask, XK_5,           kf_mvws_5,      NULL);
2869         setkeybinding(MODKEY|ShiftMask, XK_6,           kf_mvws_6,      NULL);
2870         setkeybinding(MODKEY|ShiftMask, XK_7,           kf_mvws_7,      NULL);
2871         setkeybinding(MODKEY|ShiftMask, XK_8,           kf_mvws_8,      NULL);
2872         setkeybinding(MODKEY|ShiftMask, XK_9,           kf_mvws_9,      NULL);
2873         setkeybinding(MODKEY|ShiftMask, XK_0,           kf_mvws_10,     NULL);
2874         setkeybinding(MODKEY,           XK_b,           kf_bar_toggle,  NULL);
2875         setkeybinding(MODKEY,           XK_Tab,         kf_focus_next,  NULL);
2876         setkeybinding(MODKEY|ShiftMask, XK_Tab,         kf_focus_prev,  NULL);
2877         setkeybinding(MODKEY|ShiftMask, XK_x,           kf_wind_kill,   NULL);
2878         setkeybinding(MODKEY,           XK_x,           kf_wind_del,    NULL);
2879         setkeybinding(MODKEY,           XK_s,           kf_spawn_custom,        "screenshot_all");
2880         setkeybinding(MODKEY|ShiftMask, XK_s,           kf_spawn_custom,        "screenshot_wind");
2881         setkeybinding(MODKEY,           XK_t,           kf_float_toggle,NULL);
2882         setkeybinding(MODKEY|ShiftMask, XK_v,           kf_version,     NULL);
2883         setkeybinding(MODKEY|ShiftMask, XK_Delete,      kf_spawn_custom,        "lock");
2884         setkeybinding(MODKEY|ShiftMask, XK_i,           kf_spawn_custom,        "initscr");
2885 }
2886
2887 void
2888 updatenumlockmask(void)
2889 {
2890         unsigned int            i, j;
2891         XModifierKeymap         *modmap;
2892
2893         DNPRINTF(SWM_D_MISC, "updatenumlockmask\n");
2894         numlockmask = 0;
2895         modmap = XGetModifierMapping(display);
2896         for (i = 0; i < 8; i++)
2897                 for (j = 0; j < modmap->max_keypermod; j++)
2898                         if (modmap->modifiermap[i * modmap->max_keypermod + j]
2899                           == XKeysymToKeycode(display, XK_Num_Lock))
2900                                 numlockmask = (1 << i);
2901
2902         XFreeModifiermap(modmap);
2903 }
2904
2905 void
2906 grabkeys(void)
2907 {
2908         unsigned int            i, j, k;
2909         KeyCode                 code;
2910         unsigned int            modifiers[] =
2911             { 0, LockMask, numlockmask, numlockmask | LockMask };
2912
2913         DNPRINTF(SWM_D_MISC, "grabkeys\n");
2914         updatenumlockmask();
2915
2916         for (k = 0; k < ScreenCount(display); k++) {
2917                 if (TAILQ_EMPTY(&screens[k].rl))
2918                         continue;
2919                 XUngrabKey(display, AnyKey, AnyModifier, screens[k].root);
2920                 for (i = 0; i < keys_length; i++) {
2921                         if ((code = XKeysymToKeycode(display, keys[i].keysym)))
2922                                 for (j = 0; j < LENGTH(modifiers); j++)
2923                                         XGrabKey(display, code,
2924                                             keys[i].mod | modifiers[j],
2925                                             screens[k].root, True,
2926                                             GrabModeAsync, GrabModeAsync);
2927                 }
2928         }
2929 }
2930
2931 void
2932 grabbuttons(struct ws_win *win, int focused)
2933 {
2934         unsigned int            i, j;
2935         unsigned int            modifiers[] =
2936             { 0, LockMask, numlockmask, numlockmask|LockMask };
2937
2938         updatenumlockmask();
2939         XUngrabButton(display, AnyButton, AnyModifier, win->id);
2940         if(focused) {
2941                 for (i = 0; i < LENGTH(buttons); i++)
2942                         if (buttons[i].action == client_click)
2943                                 for (j = 0; j < LENGTH(modifiers); j++)
2944                                         XGrabButton(display, buttons[i].button,
2945                                             buttons[i].mask | modifiers[j],
2946                                             win->id, False, BUTTONMASK,
2947                                             GrabModeAsync, GrabModeSync, None,
2948                                             None);
2949         } else
2950                 XGrabButton(display, AnyButton, AnyModifier, win->id, False,
2951                     BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
2952 }
2953
2954 const char *quirkname[] = {
2955         "NONE",         /* config string for "no value" */
2956         "FLOAT",
2957         "TRANSSZ",
2958         "ANYWHERE",
2959         "XTERM_FONTADJ",
2960         "FULLSCREEN",
2961 };
2962
2963 /* SWM_Q_WS: retain '|' for back compat for now (2009-08-11) */
2964 #define SWM_Q_WS                "\n|+ \t"
2965 int
2966 parsequirks(char *qstr, unsigned long *quirk)
2967 {
2968         char                    *cp, *name;
2969         int                     i;
2970
2971         if (quirk == NULL)
2972                 return (1);
2973
2974         cp = qstr;
2975         *quirk = 0;
2976         while ((name = strsep(&cp, SWM_Q_WS)) != NULL) {
2977                 if (cp)
2978                         cp += (long)strspn(cp, SWM_Q_WS);
2979                 for (i = 0; i < LENGTH(quirkname); i++) {
2980                         if (!strncasecmp(name, quirkname[i], SWM_QUIRK_LEN)) {
2981                                 DNPRINTF(SWM_D_QUIRK, "parsequirks: %s\n", name);
2982                                 if (i == 0) {
2983                                         *quirk = 0;
2984                                         return (0);
2985                                 }
2986                                 *quirk |= 1 << (i-1);
2987                                 break;
2988                         }
2989                 }
2990                 if (i >= LENGTH(quirkname)) {
2991                         DNPRINTF(SWM_D_QUIRK,
2992                             "parsequirks: invalid quirk [%s]\n", name);
2993                         return (1);
2994                 }
2995         }
2996         return (0);
2997 }
2998
2999 void
3000 setquirk(const char *class, const char *name, const int quirk)
3001 {
3002         int                     i, j;
3003
3004         /* find existing */
3005         for (i = 0; i < quirks_length; i++) {
3006                 if (!strcmp(quirks[i].class, class) &&
3007                     !strcmp(quirks[i].name, name)) {
3008                         if (!quirk) {
3009                                 /* found: delete */
3010                                 DNPRINTF(SWM_D_QUIRK,
3011                                     "setquirk: delete #%d %s:%s\n",
3012                                     i, quirks[i].class, quirks[i].name);
3013                                 free(quirks[i].class);
3014                                 free(quirks[i].name);
3015                                 j = quirks_length - 1;
3016                                 if (i < j)
3017                                         quirks[i] = quirks[j];
3018                                 quirks_length--;
3019                                 return;
3020                         } else {
3021                                 /* found: replace */
3022                                 DNPRINTF(SWM_D_QUIRK,
3023                                     "setquirk: replace #%d %s:%s\n",
3024                                     i, quirks[i].class, quirks[i].name);
3025                                 free(quirks[i].class);
3026                                 free(quirks[i].name);
3027                                 quirks[i].class = strdup(class);
3028                                 quirks[i].name = strdup(name);
3029                                 quirks[i].quirk = quirk;
3030                                 return;
3031                         }
3032                 }
3033         }
3034         if (!quirk) {
3035                 fprintf(stderr,
3036                     "error: setquirk: cannot find class/name combination");
3037                 return;
3038         }
3039         /* not found: add */
3040         if (quirks_size == 0 || quirks == NULL) {
3041                 quirks_size = 4;
3042                 DNPRINTF(SWM_D_QUIRK, "setquirk: init list %d\n", quirks_size);
3043                 quirks = malloc((size_t)quirks_size * sizeof(struct quirk));
3044                 if (!quirks) {
3045                         fprintf(stderr, "setquirk: malloc failed\n");
3046                         perror(" failed");
3047                         quit(NULL, NULL);
3048                 }
3049         } else if (quirks_length == quirks_size) {
3050                 quirks_size *= 2;
3051                 DNPRINTF(SWM_D_QUIRK, "setquirk: grow list %d\n", quirks_size);
3052                 quirks = realloc(quirks, (size_t)quirks_size * sizeof(struct quirk));
3053                 if (!quirks) {
3054                         fprintf(stderr, "setquirk: realloc failed\n");
3055                         perror(" failed");
3056                         quit(NULL, NULL);
3057                 }
3058         }
3059         if (quirks_length < quirks_size) {
3060                 DNPRINTF(SWM_D_QUIRK, "setquirk: add %d\n", quirks_length);
3061                 j = quirks_length++;
3062                 quirks[j].class = strdup(class);
3063                 quirks[j].name = strdup(name);
3064                 quirks[j].quirk = quirk;
3065         } else {
3066                 fprintf(stderr, "quirks array problem?\n");
3067                 if (!quirks) {
3068                         fprintf(stderr, "quirks array problem!\n");
3069                         quit(NULL, NULL);
3070                 }
3071         }
3072 }
3073
3074 int
3075 setconfquirk(char *selector, char *value, int flags)
3076 {
3077         char                    *cp, *class, *name;
3078         int                     retval;
3079         unsigned long           quirks;
3080         if (selector == NULL)
3081                 return (0);
3082         if ((cp = strchr(selector, ':')) == NULL)
3083                 return (0);
3084         *cp = '\0';
3085         class = selector;
3086         name = cp + 1;
3087         if ((retval = parsequirks(value, &quirks)) == 0)
3088                 setquirk(class, name, quirks);
3089         return (retval);
3090 }
3091
3092 void
3093 setup_quirks(void)
3094 {
3095         setquirk("MPlayer",             "xv",           SWM_Q_FLOAT | SWM_Q_FULLSCREEN);
3096         setquirk("OpenOffice.org 2.4",  "VCLSalFrame",  SWM_Q_FLOAT);
3097         setquirk("OpenOffice.org 3.0",  "VCLSalFrame",  SWM_Q_FLOAT);
3098         setquirk("Firefox-bin",         "firefox-bin",  SWM_Q_TRANSSZ);
3099         setquirk("Firefox",             "Dialog",       SWM_Q_FLOAT);
3100         setquirk("Gimp",                "gimp",         SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3101         setquirk("XTerm",               "xterm",        SWM_Q_XTERM_FONTADJ);
3102         setquirk("xine",                "Xine Window",  SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3103         setquirk("Xitk",                "Xitk Combo",   SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3104         setquirk("xine",                "xine Panel",   SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3105         setquirk("Xitk",                "Xine Window",  SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3106         setquirk("xine",                "xine Video Fullscreen Window", SWM_Q_FULLSCREEN | SWM_Q_FLOAT);
3107         setquirk("pcb",                 "pcb",          SWM_Q_FLOAT);
3108 }
3109
3110 /* conf file stuff */
3111 #define SWM_CONF_FILE   "scrotwm.conf"
3112
3113 enum    { SWM_S_BAR_DELAY, SWM_S_BAR_ENABLED, SWM_S_STACK_ENABLED,
3114           SWM_S_CLOCK_ENABLED, SWM_S_CYCLE_EMPTY, SWM_S_CYCLE_VISIBLE,
3115           SWM_S_SS_ENABLED, SWM_S_TERM_WIDTH, SWM_S_TITLE_CLASS_ENABLED,
3116           SWM_S_TITLE_NAME_ENABLED, SWM_S_BAR_FONT, SWM_S_BAR_ACTION,
3117           SWM_S_SPAWN_TERM, SWM_S_SS_APP, SWM_S_DIALOG_RATIO };
3118
3119 int
3120 setconfvalue(char *selector, char *value, int flags)
3121 {
3122         switch (flags) {
3123         case SWM_S_BAR_DELAY:
3124                 bar_delay = atoi(value);
3125                 break;
3126         case SWM_S_BAR_ENABLED:
3127                 bar_enabled = atoi(value);
3128                 break;
3129         case SWM_S_STACK_ENABLED:
3130                 stack_enabled = atoi(value);
3131                 break;
3132         case SWM_S_CLOCK_ENABLED:
3133                 clock_enabled = atoi(value);
3134                 break;
3135         case SWM_S_CYCLE_EMPTY:
3136                 cycle_empty = atoi(value);
3137                 break;
3138         case SWM_S_CYCLE_VISIBLE:
3139                 cycle_visible = atoi(value);
3140                 break;
3141         case SWM_S_SS_ENABLED:
3142                 ss_enabled = atoi(value);
3143                 break;
3144         case SWM_S_TERM_WIDTH:
3145                 term_width = atoi(value);
3146                 break;
3147         case SWM_S_TITLE_CLASS_ENABLED:
3148                 title_class_enabled = atoi(value);
3149                 break;
3150         case SWM_S_TITLE_NAME_ENABLED:
3151                 title_name_enabled = atoi(value);
3152                 break;
3153         case SWM_S_BAR_FONT:
3154                 free(bar_fonts[0]);
3155                 if ((bar_fonts[0] = strdup(value)) == NULL)
3156                         err(1, "setconfvalue: bar_font");
3157                 break;
3158         case SWM_S_BAR_ACTION:
3159                 free(bar_argv[0]);
3160                 if ((bar_argv[0] = strdup(value)) == NULL)
3161                         err(1, "setconfvalue: bar_action");
3162                 break;
3163         case SWM_S_SPAWN_TERM:
3164                 free(spawn_term[0]);
3165                 if ((spawn_term[0] = strdup(value)) == NULL)
3166                         err(1, "setconfvalue: spawn_term");
3167                 break;
3168         case SWM_S_SS_APP:
3169                 break;
3170         case SWM_S_DIALOG_RATIO:
3171                 dialog_ratio = atof(value);
3172                 if (dialog_ratio > 1.0 || dialog_ratio <= .3)
3173                         dialog_ratio = .6;
3174                 break;
3175         default:
3176                 return (1);
3177         }
3178         return (0);
3179 }
3180
3181 int
3182 setconfmodkey(char *selector, char *value, int flags)
3183 {
3184         if (!strncasecmp(value, "Mod1", strlen("Mod1")))
3185                 update_modkey(Mod1Mask);
3186         else if (!strncasecmp(value, "Mod2", strlen("Mod2")))
3187                 update_modkey(Mod2Mask);
3188         else if (!strncasecmp(value, "Mod3", strlen("Mod3")))
3189                 update_modkey(Mod3Mask);
3190         else if (!strncasecmp(value, "Mod4", strlen("Mod4")))
3191                 update_modkey(Mod4Mask);
3192         else
3193                 return (1);
3194         return (0);
3195 }
3196
3197 int
3198 setconfcolor(char *selector, char *value, int flags)
3199 {
3200         setscreencolor(value, ((selector == NULL)?-1:atoi(selector)), flags);
3201         return (0);
3202 }
3203
3204 int
3205 setconfregion(char *selector, char *value, int flags)
3206 {
3207         custom_region(value);
3208         return (0);
3209 }
3210
3211 /* config options */
3212 struct config_option {
3213         char                    *optname;
3214         int (*func)(char*, char*, int);
3215         int funcflags;
3216 };
3217 struct config_option configopt[] = {
3218         { "bar_enabled",                setconfvalue,   SWM_S_BAR_ENABLED },
3219         { "bar_border",                 setconfcolor,   SWM_S_COLOR_BAR_BORDER },
3220         { "bar_color",                  setconfcolor,   SWM_S_COLOR_BAR },
3221         { "bar_font_color",             setconfcolor,   SWM_S_COLOR_BAR_FONT },
3222         { "bar_font",                   setconfvalue,   SWM_S_BAR_FONT },
3223         { "bar_action",                 setconfvalue,   SWM_S_BAR_ACTION },
3224         { "bar_delay",                  setconfvalue,   SWM_S_BAR_DELAY },
3225         { "bind",                       setconfbinding, 0 },
3226         { "stack_enabled",              setconfvalue,   SWM_S_STACK_ENABLED },
3227         { "clock_enabled",              setconfvalue,   SWM_S_CLOCK_ENABLED },
3228         { "color_focus",                setconfcolor,   SWM_S_COLOR_FOCUS },
3229         { "color_unfocus",              setconfcolor,   SWM_S_COLOR_UNFOCUS },
3230         { "cycle_empty",                setconfvalue,   SWM_S_CYCLE_EMPTY },
3231         { "cycle_visible",              setconfvalue,   SWM_S_CYCLE_VISIBLE },
3232         { "dialog_ratio",               setconfvalue,   SWM_S_DIALOG_RATIO },
3233         { "modkey",                     setconfmodkey,  0 },
3234         { "program",                    setconfspawn,   0 },
3235         { "quirk",                      setconfquirk,   0 },
3236         { "region",                     setconfregion,  0 },
3237         { "spawn_term",                 setconfvalue,   SWM_S_SPAWN_TERM },
3238         { "screenshot_enabled",         setconfvalue,   SWM_S_SS_ENABLED },
3239         { "screenshot_app",             setconfvalue,   SWM_S_SS_APP },
3240         { "term_width",                 setconfvalue,   SWM_S_TERM_WIDTH },
3241         { "title_class_enabled",        setconfvalue,   SWM_S_TITLE_CLASS_ENABLED },
3242         { "title_name_enabled",         setconfvalue,   SWM_S_TITLE_NAME_ENABLED }
3243 };
3244
3245
3246 int
3247 conf_load(char *filename)
3248 {
3249         FILE                    *config;
3250         char                    *line, *cp, *optsub, *optval;
3251         size_t                  linelen, lineno = 0;
3252         int                     wordlen, i, optind;
3253         struct config_option    *opt;
3254
3255         DNPRINTF(SWM_D_CONF, "conf_load begin\n");
3256
3257         if (filename == NULL) {
3258                 fprintf(stderr, "conf_load: no filename\n");
3259                 return (1);
3260         }
3261         if ((config = fopen(filename, "r")) == NULL) {
3262                 warn("conf_load: fopen");
3263                 return (1);
3264         }
3265
3266         while (!feof(config)) {
3267                 if ((line = fparseln(config, &linelen, &lineno, NULL, 0))
3268                     == NULL) {
3269                         if (ferror(config))
3270                                 err(1, "%s", filename);
3271                         else
3272                                 continue;
3273                 }
3274                 cp = line;
3275                 cp += strspn(cp, " \t\n"); /* eat whitespace */
3276                 if (cp[0] == '\0') {
3277                         /* empty line */
3278                         free(line);
3279                         continue;
3280                 }
3281                 /* get config option */
3282                 wordlen = strcspn(cp, "=[ \t\n");
3283                 if (wordlen == 0) {
3284                         warnx("%s: line %zd: no option found",
3285                             filename, lineno);
3286                         return (1);
3287                 }
3288                 optind = -1;
3289                 for (i = 0; i < LENGTH(configopt); i++) {
3290                         opt = &configopt[i];
3291                         if (!strncasecmp(cp, opt->optname, wordlen) &&
3292                             strlen(opt->optname) == wordlen) {
3293                                 optind = i;
3294                                 break;
3295                         }
3296                 }
3297                 if (optind == -1) {
3298                         warnx("%s: line %zd: unknown option %.*s",
3299                             filename, lineno, wordlen, cp);
3300                         return (1);
3301                 }
3302                 cp += wordlen;
3303                 cp += strspn(cp, " \t\n"); /* eat whitespace */
3304                 /* get [selector] if any */
3305                 optsub = NULL;
3306                 if (*cp == '[') {
3307                         cp++;
3308                         wordlen = strcspn(cp, "]");
3309                         if (*cp != ']') {
3310                                 if (wordlen == 0) {
3311                                         warnx("%s: line %zd: syntax error",
3312                                             filename, lineno);
3313                                         return (1);
3314                                 }
3315                                 asprintf(&optsub, "%.*s", wordlen, cp);
3316                         }
3317                         cp += wordlen;
3318                         cp += strspn(cp, "] \t\n"); /* eat trailing */
3319                 }
3320                 cp += strspn(cp, "= \t\n"); /* eat trailing */
3321                 /* get RHS value */
3322                 optval = strdup(cp);
3323                 /* call function to deal with it all */
3324                 if (configopt[optind].func(optsub, optval,
3325                     configopt[optind].funcflags) != 0) {
3326                         fprintf(stderr, "%s line %zd: %s\n",
3327                             filename, lineno, line);
3328                         errx(1, "%s: line %zd: invalid data for %s",
3329                             filename, lineno, configopt[optind].optname);
3330                 }
3331                 free(optval);
3332                 free(optsub);
3333                 free(line);
3334         }
3335
3336         fclose(config);
3337         DNPRINTF(SWM_D_CONF, "conf_load end\n");
3338
3339         return (0);
3340 }
3341
3342 struct ws_win *
3343 manage_window(Window id)
3344 {
3345         Window                  trans = 0;
3346         struct workspace        *ws;
3347         struct ws_win           *win, *ww, *parent;
3348         int                     format, i, ws_idx, n, border_me = 0;
3349         unsigned long           nitems, bytes;
3350         Atom                    ws_idx_atom = 0, type;
3351         Atom                    *prot = NULL, *pp;
3352         unsigned char           ws_idx_str[SWM_PROPLEN], *prop = NULL;
3353         struct swm_region       *r;
3354         long                    mask;
3355         const char              *errstr;
3356         XWindowChanges          wc;
3357
3358         if ((win = find_window(id)) != NULL)
3359                         return (win);   /* already being managed */
3360
3361         if ((win = calloc(1, sizeof(struct ws_win))) == NULL)
3362                 errx(1, "calloc: failed to allocate memory for new window");
3363
3364         /* Get all the window data in one shot */
3365         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
3366         if (ws_idx_atom)
3367                 XGetWindowProperty(display, id, ws_idx_atom, 0, SWM_PROPLEN,
3368                     False, XA_STRING, &type, &format, &nitems, &bytes, &prop);
3369         XGetWindowAttributes(display, id, &win->wa);
3370         XGetWMNormalHints(display, id, &win->sh, &mask);
3371         XGetTransientForHint(display, id, &trans);
3372         if (trans) {
3373                 win->transient = trans;
3374                 parent = find_window(win->transient);
3375                 if (parent)
3376                         parent->child_trans = win;
3377                 DNPRINTF(SWM_D_MISC, "manage_window: win %u transient %u\n",
3378                     (unsigned)win->id, win->transient);
3379         }
3380         /* get supported protocols */
3381         if (XGetWMProtocols(display, id, &prot, &n)) {
3382                 for (i = 0, pp = prot; i < n; i++, pp++) {
3383                         if (*pp == takefocus)
3384                                 win->take_focus = 1;
3385                         if (*pp == adelete)
3386                                 win->can_delete = 1;
3387                 }
3388                 if (prot)
3389                         XFree(prot);
3390         }
3391
3392         /*
3393          * Figure out where to put the window. If it was previously assigned to
3394          * a workspace (either by spawn() or manually moving), and isn't
3395          * transient, * put it in the same workspace
3396          */
3397         r = root_to_region(win->wa.root);
3398         if (prop && win->transient == 0) {
3399                 DNPRINTF(SWM_D_PROP, "got property _SWM_WS=%s\n", prop);
3400                 ws_idx = strtonum(prop, 0, 9, &errstr);
3401                 if (errstr) {
3402                         DNPRINTF(SWM_D_EVENT, "window idx is %s: %s",
3403                             errstr, prop);
3404                 }
3405                 ws = &r->s->ws[ws_idx];
3406         } else {
3407                 ws = r->ws;
3408                 /* this should launch transients in the same ws as parent */
3409                 if (id && trans)
3410                         if ((ww = find_window(trans)) != NULL)
3411                                 if (ws->r) {
3412                                         ws = ww->ws;
3413                                         if (ww->ws->r)
3414                                                 r = ww->ws->r;
3415                                         else
3416                                                 fprintf(stderr,
3417                                                     "fix this bug mcbride\n");
3418                                         border_me = 1;
3419                                 }
3420         }
3421
3422         /* set up the window layout */
3423         win->id = id;
3424         win->ws = ws;
3425         win->s = r->s;  /* this never changes */
3426         TAILQ_INSERT_TAIL(&ws->winlist, win, entry);
3427
3428         win->g.w = win->wa.width;
3429         win->g.h = win->wa.height;
3430         win->g.x = win->wa.x;
3431         win->g.y = win->wa.y;
3432
3433         /* Set window properties so we can remember this after reincarnation */
3434         if (ws_idx_atom && prop == NULL &&
3435             snprintf(ws_idx_str, SWM_PROPLEN, "%d", ws->idx) < SWM_PROPLEN) {
3436                 DNPRINTF(SWM_D_PROP, "setting property _SWM_WS to %s\n",
3437                     ws_idx_str);
3438                 XChangeProperty(display, win->id, ws_idx_atom, XA_STRING, 8,
3439                     PropModeReplace, ws_idx_str, SWM_PROPLEN);
3440         }
3441         XFree(prop);
3442
3443         if (XGetClassHint(display, win->id, &win->ch)) {
3444                 DNPRINTF(SWM_D_CLASS, "class: %s name: %s\n",
3445                     win->ch.res_class, win->ch.res_name);
3446
3447                 /* java is retarded so treat it special */
3448                 if (strstr(win->ch.res_name, "sun-awt"))
3449                         win->java = 1;
3450
3451                 for (i = 0; i < quirks_length; i++){
3452                         if (!strcmp(win->ch.res_class, quirks[i].class) &&
3453                             !strcmp(win->ch.res_name, quirks[i].name)) {
3454                                 DNPRINTF(SWM_D_CLASS, "found: %s name: %s\n",
3455                                     win->ch.res_class, win->ch.res_name);
3456                                 if (quirks[i].quirk & SWM_Q_FLOAT)
3457                                         win->floating = 1;
3458                                 win->quirks = quirks[i].quirk;
3459                         }
3460                 }
3461         }
3462
3463         /* alter window position if quirky */
3464         if (win->quirks & SWM_Q_ANYWHERE) {
3465                 win->manual = 1; /* don't center the quirky windows */
3466                 bzero(&wc, sizeof wc);
3467                 mask = 0;
3468                 if (win->g.y < bar_height) {
3469                         win->g.y = wc.y = bar_height;
3470                         mask |= CWY;
3471                 }
3472                 if (win->g.w + win->g.x > WIDTH(r)) {
3473                         win->g.x = wc.x = WIDTH(r) - win->g.w - 2;
3474                         mask |= CWX;
3475                 }
3476                 border_me = 1;
3477         }
3478
3479         /* Reset font sizes (the bruteforce way; no default keybinding). */
3480         if (win->quirks & SWM_Q_XTERM_FONTADJ) {
3481                 for (i = 0; i < SWM_MAX_FONT_STEPS; i++)
3482                         fake_keypress(win, XK_KP_Subtract, ShiftMask);
3483                 for (i = 0; i < SWM_MAX_FONT_STEPS; i++)
3484                         fake_keypress(win, XK_KP_Add, ShiftMask);
3485         }
3486
3487         /* border me */
3488         if (border_me) {
3489                 bzero(&wc, sizeof wc);
3490                 wc.border_width = 1;
3491                 mask = CWBorderWidth;
3492                 XConfigureWindow(display, win->id, mask, &wc);
3493         }
3494
3495         XSelectInput(display, id, EnterWindowMask | FocusChangeMask |
3496             PropertyChangeMask | StructureNotifyMask);
3497
3498         set_win_state(win, NormalState);
3499
3500         /* floaters need to be mapped if they are in the current workspace */
3501         if ((win->floating || win->transient) && (ws->idx == r->ws->idx))
3502                 XMapRaised(display, win->id);
3503
3504         return (win);
3505 }
3506
3507 void
3508 unmanage_window(struct ws_win *win)
3509 {
3510         struct workspace        *ws;
3511         struct ws_win           *parent;
3512
3513         if (win == NULL)
3514                 return;
3515
3516         DNPRINTF(SWM_D_MISC, "unmanage_window:  %lu\n", win->id);
3517
3518         /* needed for restart wm */
3519         set_win_state(win, WithdrawnState);
3520
3521         if (win->transient) {
3522                 parent = find_window(win->transient);
3523                 if (parent)
3524                         parent->child_trans = NULL;
3525         }
3526
3527         ws = win->ws;
3528         TAILQ_REMOVE(&win->ws->winlist, win, entry);
3529         if (win->ch.res_class)
3530                 XFree(win->ch.res_class);
3531         if (win->ch.res_name)
3532                 XFree(win->ch.res_name);
3533         free(win);
3534 }
3535
3536 void
3537 focus_magic(struct ws_win *win)
3538 {
3539         if (win->child_trans) {
3540                 /* win = parent & has a transient so focus on that */
3541                 if (win->java) {
3542                         focus_win(win->child_trans);
3543                         if (win->child_trans->take_focus)
3544                                 client_msg(win, takefocus);
3545                 } else {
3546                         focus_win(win->child_trans);
3547                         if (win->child_trans->take_focus)
3548                                 client_msg(win->child_trans, takefocus);
3549                 }
3550         } else {
3551                 /* regular focus */
3552                 focus_win(win);
3553                 if (win->take_focus)
3554                         client_msg(win, takefocus);
3555         }
3556 }
3557
3558 void
3559 expose(XEvent *e)
3560 {
3561         DNPRINTF(SWM_D_EVENT, "expose: window: %lu\n", e->xexpose.window);
3562 }
3563
3564 void
3565 keypress(XEvent *e)
3566 {
3567         unsigned int            i;
3568         KeySym                  keysym;
3569         XKeyEvent               *ev = &e->xkey;
3570
3571         DNPRINTF(SWM_D_EVENT, "keypress: window: %lu\n", ev->window);
3572
3573         keysym = XKeycodeToKeysym(display, (KeyCode)ev->keycode, 0);
3574         for (i = 0; i < keys_length; i++)
3575                 if (keysym == keys[i].keysym
3576                    && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
3577                    && keyfuncs[keys[i].funcid].func) {
3578                         if (keys[i].funcid == kf_spawn_custom)
3579                                 spawn_custom(
3580                                     root_to_region(ev->root),
3581                                     &(keyfuncs[keys[i].funcid].args),
3582                                     keys[i].spawn_name
3583                                     );
3584                         else
3585                                 keyfuncs[keys[i].funcid].func(
3586                                     root_to_region(ev->root),
3587                                     &(keyfuncs[keys[i].funcid].args)
3588                                     );
3589                 }
3590 }
3591
3592 void
3593 buttonpress(XEvent *e)
3594 {
3595         XButtonPressedEvent     *ev = &e->xbutton;
3596
3597         struct ws_win           *win;
3598         int                     i, action;
3599
3600         DNPRINTF(SWM_D_EVENT, "buttonpress: window: %lu\n", ev->window);
3601
3602         action = root_click;
3603         if ((win = find_window(ev->window)) == NULL)
3604                 return;
3605
3606         focus_magic(win);
3607         action = client_click;
3608
3609         for (i = 0; i < LENGTH(buttons); i++)
3610                 if (action == buttons[i].action && buttons[i].func &&
3611                     buttons[i].button == ev->button &&
3612                     CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
3613                         buttons[i].func(win, &buttons[i].args);
3614 }
3615
3616 void
3617 configurerequest(XEvent *e)
3618 {
3619         XConfigureRequestEvent  *ev = &e->xconfigurerequest;
3620         struct ws_win           *win;
3621         int                     new = 0;
3622         XWindowChanges          wc;
3623
3624         if ((win = find_window(ev->window)) == NULL)
3625                 new = 1;
3626
3627         if (new) {
3628                 DNPRINTF(SWM_D_EVENT, "configurerequest: new window: %lu\n",
3629                     ev->window);
3630                 bzero(&wc, sizeof wc);
3631                 wc.x = ev->x;
3632                 wc.y = ev->y;
3633                 wc.width = ev->width;
3634                 wc.height = ev->height;
3635                 wc.border_width = ev->border_width;
3636                 wc.sibling = ev->above;
3637                 wc.stack_mode = ev->detail;
3638                 XConfigureWindow(display, ev->window, ev->value_mask, &wc);
3639         } else {
3640                 DNPRINTF(SWM_D_EVENT, "configurerequest: change window: %lu\n",
3641                     ev->window);
3642                 if (win->floating) {
3643                         if (ev->value_mask & CWX)
3644                                 win->g.x = ev->x;
3645                         if (ev->value_mask & CWY)
3646                                 win->g.y = ev->y;
3647                         if (ev->value_mask & CWWidth)
3648                                 win->g.w = ev->width;
3649                         if (ev->value_mask & CWHeight)
3650                                 win->g.h = ev->height;
3651                         if (win->ws->r != NULL) {
3652                                 /* this seems to be full screen */
3653                                 if (win->g.w >= WIDTH(win->ws->r)) {
3654                                         win->g.x = 0;
3655                                         win->g.w = WIDTH(win->ws->r);
3656                                         ev->value_mask |= CWX | CWWidth;
3657                                 }
3658                                 if (win->g.h >= HEIGHT(win->ws->r)) {
3659                                         /* kill border */
3660                                         win->g.y = 0;
3661                                         win->g.h = HEIGHT(win->ws->r);
3662                                         ev->value_mask |= CWY | CWHeight;
3663                                 }
3664                         }
3665                         if ((ev->value_mask & (CWX | CWY)) &&
3666                             !(ev->value_mask & (CWWidth | CWHeight)))
3667                                 config_win(win);
3668                         XMoveResizeWindow(display, win->id,
3669                             win->g.x, win->g.y, win->g.w, win->g.h);
3670                 } else
3671                         config_win(win);
3672         }
3673 }
3674
3675 void
3676 configurenotify(XEvent *e)
3677 {
3678         struct ws_win           *win;
3679         long                    mask;
3680
3681         DNPRINTF(SWM_D_EVENT, "configurenotify: window: %lu\n",
3682             e->xconfigure.window);
3683
3684         XMapWindow(display, e->xconfigure.window);
3685         win = find_window(e->xconfigure.window);
3686         if (win) {
3687                 XGetWMNormalHints(display, win->id, &win->sh, &mask);
3688                 adjust_font(win);
3689                 XMapWindow(display, win->id);
3690                 if (font_adjusted)
3691                         stack();
3692         }
3693 }
3694
3695 void
3696 destroynotify(XEvent *e)
3697 {
3698         struct ws_win           *win, *winfocus = NULL;
3699         struct workspace        *ws;
3700         struct ws_win_list      *wl;
3701         XDestroyWindowEvent     *ev = &e->xdestroywindow;
3702
3703         DNPRINTF(SWM_D_EVENT, "destroynotify: window %lu\n", ev->window);
3704
3705         if ((win = find_window(ev->window)) != NULL) {
3706                 /* find a window to focus */
3707                 ws = win->ws;
3708                 wl = &ws->winlist;
3709
3710                 /* if we are transient give focus to parent */
3711                 if (win->transient)
3712                         winfocus = find_window(win->transient);
3713                 else if (ws->focus == win) {
3714                         /* if in max_stack try harder */
3715                         if (ws->cur_layout->flags & SWM_L_FOCUSPREV) {
3716                                 if (win != ws->focus_prev)
3717                                         winfocus = ws->focus_prev;
3718                                 else if (win != ws->focus)
3719                                         winfocus = ws->focus;
3720                         }
3721
3722                         /* fallback and normal handling */
3723                         if (winfocus == NULL) {
3724                                 if (TAILQ_FIRST(wl) == win)
3725                                         winfocus = TAILQ_NEXT(win, entry);
3726                                 else {
3727                                         winfocus = TAILQ_PREV(ws->focus,
3728                                             ws_win_list, entry);
3729                                         if (winfocus == NULL)
3730                                                 winfocus = TAILQ_LAST(wl,
3731                                                     ws_win_list);
3732                                 }
3733                         }
3734                 }
3735                 unmanage_window(win);
3736
3737                 ignore_enter = 1;
3738                 stack();
3739                 if (winfocus)
3740                         focus_win(winfocus);
3741                 ignore_enter = 0;
3742         }
3743 }
3744
3745 void
3746 enternotify(XEvent *e)
3747 {
3748         XCrossingEvent          *ev = &e->xcrossing;
3749         struct ws_win           *win;
3750
3751         DNPRINTF(SWM_D_EVENT, "enternotify: window: %lu\n", ev->window);
3752
3753         if (ignore_enter) {
3754                 /* eat event(r) to prevent autofocus */
3755                 ignore_enter = 0;
3756                 return;
3757         }
3758         /*
3759          * happens when a window is created or destroyed and the border
3760          * crosses the mouse pointer
3761          */
3762         if (QLength(display))
3763                 return;
3764
3765         if ((win = find_window(ev->window)) == NULL)
3766                 return;
3767
3768         focus_magic(win);
3769 }
3770
3771 void
3772 focusin(XEvent *e)
3773 {
3774         DNPRINTF(SWM_D_EVENT, "focusin: window: %lu\n", e->xfocus.window);
3775 }
3776
3777 void
3778 focusout(XEvent *e)
3779 {
3780         DNPRINTF(SWM_D_EVENT, "focusout: window: %lu\n", e->xfocus.window);
3781 }
3782
3783 void
3784 mapnotify(XEvent *e)
3785 {
3786         struct ws_win           *win;
3787         XMapEvent               *ev = &e->xmap;
3788
3789         DNPRINTF(SWM_D_EVENT, "mapnotify: window: %lu\n", ev->window);
3790
3791         win = find_window(ev->window);
3792         if (win)
3793                 set_win_state(win, NormalState);
3794 }
3795
3796 void
3797 mappingnotify(XEvent *e)
3798 {
3799         XMappingEvent           *ev = &e->xmapping;
3800
3801         XRefreshKeyboardMapping(ev);
3802         if (ev->request == MappingKeyboard)
3803                 grabkeys();
3804 }
3805
3806 void
3807 maprequest(XEvent *e)
3808 {
3809         struct ws_win           *win;
3810         struct swm_region       *r;
3811
3812         XMapRequestEvent        *ev = &e->xmaprequest;
3813         XWindowAttributes       wa;
3814
3815         DNPRINTF(SWM_D_EVENT, "maprequest: window: %lu\n",
3816             e->xmaprequest.window);
3817
3818         if (!XGetWindowAttributes(display, ev->window, &wa))
3819                 return;
3820         if (wa.override_redirect)
3821                 return;
3822
3823         win = manage_window(e->xmaprequest.window);
3824         if (win == NULL)
3825                 return; /* can't happen */
3826
3827         ignore_enter = 1;
3828         stack();
3829         ignore_enter = 0;
3830
3831         /* make new win focused */
3832         r = root_to_region(win->wa.root);
3833         if (win->ws == r->ws)
3834                 focus_win(win);
3835 }
3836
3837 void
3838 propertynotify(XEvent *e)
3839 {
3840         struct ws_win           *win;
3841         XPropertyEvent          *ev = &e->xproperty;
3842
3843         DNPRINTF(SWM_D_EVENT, "propertynotify: window: %lu\n",
3844             ev->window);
3845
3846         if (ev->state == PropertyDelete)
3847                 return; /* ignore */
3848         win = find_window(ev->window);
3849         if (win == NULL)
3850                 return;
3851
3852         switch (ev->atom) {
3853         case XA_WM_NORMAL_HINTS:
3854 #if 0
3855                 long            mask;
3856                 XGetWMNormalHints(display, win->id, &win->sh, &mask);
3857                 fprintf(stderr, "normal hints: flag 0x%x\n", win->sh.flags);
3858                 if (win->sh.flags & PMinSize) {
3859                         win->g.w = win->sh.min_width;
3860                         win->g.h = win->sh.min_height;
3861                         fprintf(stderr, "min %d %d\n", win->g.w, win->g.h);
3862                 }
3863                 XMoveResizeWindow(display, win->id,
3864                     win->g.x, win->g.y, win->g.w, win->g.h);
3865 #endif
3866                 break;
3867         default:
3868                 break;
3869         }
3870 }
3871
3872 void
3873 unmapnotify(XEvent *e)
3874 {
3875         struct ws_win           *win, *winfocus = NULL;
3876         struct workspace        *ws;
3877
3878         DNPRINTF(SWM_D_EVENT, "unmapnotify: window: %lu\n", e->xunmap.window);
3879
3880         /* determine if we need to help unmanage this window */
3881         win = find_window(e->xunmap.window);
3882         if (win == NULL)
3883                 return;
3884
3885         /* java can not deal with this heuristic */
3886         if (win->java)
3887                 return;
3888
3889         if (getstate(e->xunmap.window) == NormalState) {
3890                 /*
3891                  * this window does not have a destroy event but but it is no
3892                  * longer visible due to the app unmapping it so unmanage it
3893                  */
3894                 ws = win->ws;
3895                 /* if we are max_stack try harder to focus on something */
3896                 if (ws->cur_layout->flags & SWM_L_FOCUSPREV) {
3897                         if (win->transient)
3898                                 winfocus = find_window(win->transient);
3899                         else if (win != ws->focus_prev)
3900                                 winfocus = ws->focus_prev;
3901                         else if (win != ws->focus)
3902                                 winfocus = ws->focus;
3903                 }
3904
3905                 /* normal and fallback if haven't found anything to focus on */
3906                 if (winfocus == NULL) {
3907                         winfocus = TAILQ_PREV(win, ws_win_list, entry);
3908                         if (TAILQ_FIRST(&ws->winlist) == win)
3909                                 winfocus = TAILQ_NEXT(win, entry);
3910                         else {
3911                                 if (ws->focus)
3912                                         winfocus = TAILQ_PREV(ws->focus,
3913                                             ws_win_list, entry);
3914                                 if (winfocus == NULL)
3915                                         winfocus = TAILQ_LAST(&ws->winlist,
3916                                             ws_win_list);
3917                         }
3918                 }
3919
3920                 /* trash window and refocus */
3921                 unmanage_window(win);
3922                 ignore_enter = 1;
3923                 stack();
3924                 focus_win(winfocus);
3925                 ignore_enter = 0;
3926         }
3927 }
3928
3929 void
3930 visibilitynotify(XEvent *e)
3931 {
3932         int                     i;
3933         struct swm_region       *r;
3934
3935         DNPRINTF(SWM_D_EVENT, "visibilitynotify: window: %lu\n",
3936             e->xvisibility.window);
3937         if (e->xvisibility.state == VisibilityUnobscured)
3938                 for (i = 0; i < ScreenCount(display); i++)
3939                         TAILQ_FOREACH(r, &screens[i].rl, entry)
3940                                 if (e->xvisibility.window == r->bar_window)
3941                                         bar_update();
3942 }
3943
3944 int
3945 xerror_start(Display *d, XErrorEvent *ee)
3946 {
3947         other_wm = 1;
3948         return (-1);
3949 }
3950
3951 int
3952 xerror(Display *d, XErrorEvent *ee)
3953 {
3954         /* fprintf(stderr, "error: %p %p\n", display, ee); */
3955         return (-1);
3956 }
3957
3958 int
3959 active_wm(void)
3960 {
3961         other_wm = 0;
3962         xerrorxlib = XSetErrorHandler(xerror_start);
3963
3964         /* this causes an error if some other window manager is running */
3965         XSelectInput(display, DefaultRootWindow(display),
3966             SubstructureRedirectMask);
3967         XSync(display, False);
3968         if (other_wm)
3969                 return (1);
3970
3971         XSetErrorHandler(xerror);
3972         XSync(display, False);
3973         return (0);
3974 }
3975
3976 void
3977 new_region(struct swm_screen *s, int x, int y, int w, int h)
3978 {
3979         struct swm_region       *r, *n;
3980         struct workspace        *ws = NULL;
3981         int                     i;
3982
3983         DNPRINTF(SWM_D_MISC, "new region: screen[%d]:%dx%d+%d+%d\n",
3984              s->idx, w, h, x, y);
3985
3986         /* remove any conflicting regions */
3987         n = TAILQ_FIRST(&s->rl);
3988         while (n) {
3989                 r = n;
3990                 n = TAILQ_NEXT(r, entry);
3991                 if (X(r) < (x + w) &&
3992                     (X(r) + WIDTH(r)) > x &&
3993                     Y(r) < (y + h) &&
3994                     (Y(r) + HEIGHT(r)) > y) {
3995                         XDestroyWindow(display, r->bar_window);
3996                         TAILQ_REMOVE(&s->rl, r, entry);
3997                         TAILQ_INSERT_TAIL(&s->orl, r, entry);
3998                 }
3999         }
4000
4001         /* search old regions for one to reuse */
4002
4003         /* size + location match */
4004         TAILQ_FOREACH(r, &s->orl, entry)
4005                 if (X(r) == x && Y(r) == y &&
4006                     HEIGHT(r) == h && WIDTH(r) == w)
4007                         break;
4008
4009         /* size match */
4010         TAILQ_FOREACH(r, &s->orl, entry)
4011                 if (HEIGHT(r) == h && WIDTH(r) == w)
4012                         break;
4013
4014         if (r != NULL) {
4015                 TAILQ_REMOVE(&s->orl, r, entry);
4016                 /* try to use old region's workspace */
4017                 if (r->ws->r == NULL)
4018                         ws = r->ws;
4019         } else
4020                 if ((r = calloc(1, sizeof(struct swm_region))) == NULL)
4021                         errx(1, "calloc: failed to allocate memory for screen");
4022
4023         /* if we don't have a workspace already, find one */
4024         if (ws == NULL) {
4025                 for (i = 0; i < SWM_WS_MAX; i++)
4026                         if (s->ws[i].r == NULL) {
4027                                 ws = &s->ws[i];
4028                                 break;
4029                         }
4030         }
4031
4032         if (ws == NULL)
4033                 errx(1, "no free workspaces\n");
4034
4035         X(r) = x;
4036         Y(r) = y;
4037         WIDTH(r) = w;
4038         HEIGHT(r) = h;
4039         r->s = s;
4040         r->ws = ws;
4041         ws->r = r;
4042         TAILQ_INSERT_TAIL(&s->rl, r, entry);
4043 }
4044
4045 void
4046 scan_xrandr(int i)
4047 {
4048 #ifdef SWM_XRR_HAS_CRTC
4049         XRRCrtcInfo             *ci;
4050         XRRScreenResources      *sr;
4051         int                     c;
4052         int                     ncrtc = 0;
4053 #endif /* SWM_XRR_HAS_CRTC */
4054         struct swm_region       *r;
4055
4056
4057         if (i >= ScreenCount(display))
4058                 errx(1, "invalid screen");
4059
4060         /* remove any old regions */
4061         while ((r = TAILQ_FIRST(&screens[i].rl)) != NULL) {
4062                 r->ws->old_r = r->ws->r = NULL;
4063                 XDestroyWindow(display, r->bar_window);
4064                 TAILQ_REMOVE(&screens[i].rl, r, entry);
4065                 TAILQ_INSERT_TAIL(&screens[i].orl, r, entry);
4066         }
4067
4068         /* map virtual screens onto physical screens */
4069 #ifdef SWM_XRR_HAS_CRTC
4070         outputs = 0;
4071         if (xrandr_support) {
4072                 sr = XRRGetScreenResources(display, screens[i].root);
4073                 if (sr == NULL)
4074                         new_region(&screens[i], 0, 0,
4075                             DisplayWidth(display, i),
4076                             DisplayHeight(display, i));
4077                 else
4078                         ncrtc = sr->ncrtc;
4079
4080                 for (c = 0, ci = NULL; c < ncrtc; c++) {
4081                         ci = XRRGetCrtcInfo(display, sr, sr->crtcs[c]);
4082                         if (ci->noutput == 0)
4083                                 continue;
4084                         outputs++;
4085
4086                         if (ci != NULL && ci->mode == None)
4087                                 new_region(&screens[i], 0, 0,
4088                                     DisplayWidth(display, i),
4089                                     DisplayHeight(display, i));
4090                         else
4091                                 new_region(&screens[i],
4092                                     ci->x, ci->y, ci->width, ci->height);
4093                 }
4094                 if (ci)
4095                         XRRFreeCrtcInfo(ci);
4096                 XRRFreeScreenResources(sr);
4097         } else
4098 #endif /* SWM_XRR_HAS_CRTC */
4099         {
4100                 new_region(&screens[i], 0, 0, DisplayWidth(display, i),
4101                     DisplayHeight(display, i));
4102         }
4103 }
4104
4105 void
4106 screenchange(XEvent *e) {
4107         XRRScreenChangeNotifyEvent      *xe = (XRRScreenChangeNotifyEvent *)e;
4108         struct swm_region               *r;
4109         int                             i;
4110
4111         DNPRINTF(SWM_D_EVENT, "screenchange: %lu\n", xe->root);
4112
4113         if (!XRRUpdateConfiguration(e))
4114                 return;
4115
4116         /* silly event doesn't include the screen index */
4117         for (i = 0; i < ScreenCount(display); i++)
4118                 if (screens[i].root == xe->root)
4119                         break;
4120         if (i >= ScreenCount(display))
4121                 errx(1, "screenchange: screen not found\n");
4122
4123         /* brute force for now, just re-enumerate the regions */
4124         scan_xrandr(i);
4125
4126         /* add bars to all regions */
4127         for (i = 0; i < ScreenCount(display); i++)
4128                 TAILQ_FOREACH(r, &screens[i].rl, entry)
4129                         bar_setup(r);
4130         stack();
4131 }
4132
4133 void
4134 setup_screens(void)
4135 {
4136         Window                  d1, d2, *wins = NULL;
4137         XWindowAttributes       wa;
4138         unsigned int            no;
4139         int                     i, j, k;
4140         int                     errorbase, major, minor;
4141         struct workspace        *ws;
4142         int                     ws_idx_atom;
4143         long                    state, manage;
4144
4145         if ((screens = calloc(ScreenCount(display),
4146              sizeof(struct swm_screen))) == NULL)
4147                 errx(1, "calloc: screens");
4148
4149         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
4150
4151         /* initial Xrandr setup */
4152         xrandr_support = XRRQueryExtension(display,
4153             &xrandr_eventbase, &errorbase);
4154         if (xrandr_support)
4155                 if (XRRQueryVersion(display, &major, &minor) && major < 1)
4156                         xrandr_support = 0;
4157
4158         /* map physical screens */
4159         for (i = 0; i < ScreenCount(display); i++) {
4160                 DNPRINTF(SWM_D_WS, "setup_screens: init screen %d\n", i);
4161                 screens[i].idx = i;
4162                 TAILQ_INIT(&screens[i].rl);
4163                 TAILQ_INIT(&screens[i].orl);
4164                 screens[i].root = RootWindow(display, i);
4165
4166                 /* set default colors */
4167                 setscreencolor("red", i + 1, SWM_S_COLOR_FOCUS);
4168                 setscreencolor("rgb:88/88/88", i + 1, SWM_S_COLOR_UNFOCUS);
4169                 setscreencolor("rgb:00/80/80", i + 1, SWM_S_COLOR_BAR_BORDER);
4170                 setscreencolor("black", i + 1, SWM_S_COLOR_BAR);
4171                 setscreencolor("rgb:a0/a0/a0", i + 1, SWM_S_COLOR_BAR_FONT);
4172
4173                 /* init all workspaces */
4174                 /* XXX these should be dynamically allocated too */
4175                 for (j = 0; j < SWM_WS_MAX; j++) {
4176                         ws = &screens[i].ws[j];
4177                         ws->idx = j;
4178                         ws->restack = 1;
4179                         ws->focus = NULL;
4180                         ws->r = NULL;
4181                         ws->old_r = NULL;
4182                         TAILQ_INIT(&ws->winlist);
4183
4184                         for (k = 0; layouts[k].l_stack != NULL; k++)
4185                                 if (layouts[k].l_config != NULL)
4186                                         layouts[k].l_config(ws,
4187                                             SWM_ARG_ID_STACKINIT);
4188                         ws->cur_layout = &layouts[0];
4189                 }
4190                 /* grab existing windows (before we build the bars)*/
4191                 if (!XQueryTree(display, screens[i].root, &d1, &d2, &wins, &no))
4192                         continue;
4193
4194                 scan_xrandr(i);
4195
4196                 if (xrandr_support)
4197                         XRRSelectInput(display, screens[i].root,
4198                             RRScreenChangeNotifyMask);
4199
4200                 /* attach windows to a region */
4201                 /* normal windows */
4202                 for (j = 0; j < no; j++) {
4203                         if (!XGetWindowAttributes(display, wins[j], &wa) ||
4204                             wa.override_redirect ||
4205                             XGetTransientForHint(display, wins[j], &d1))
4206                                 continue;
4207
4208                         state = getstate(wins[j]);
4209                         manage = state == NormalState || state == IconicState;
4210                         if (wa.map_state == IsViewable || manage)
4211                                 manage_window(wins[j]);
4212                 }
4213                 /* transient windows */
4214                 for (j = 0; j < no; j++) {
4215                         if (!XGetWindowAttributes(display, wins[j], &wa) ||
4216                             wa.override_redirect)
4217                                 continue;
4218
4219                         state = getstate(wins[j]);
4220                         manage = state == NormalState || state == IconicState;
4221                         if (XGetTransientForHint(display, wins[j], &d1) &&
4222                             manage)
4223                                 manage_window(wins[j]);
4224                 }
4225                 if (wins) {
4226                         XFree(wins);
4227                         wins = NULL;
4228                 }
4229         }
4230 }
4231
4232 void
4233 setup_globals(void)
4234 {
4235         if ((bar_fonts[0] = strdup("-*-terminus-medium-*-*-*-*-*-*-*-*-*-*-*"))
4236             == NULL)
4237                 err(1, "setup_globals: strdup");
4238         if ((bar_fonts[1] = strdup("-*-times-medium-r-*-*-*-*-*-*-*-*-*-*"))
4239             == NULL)
4240                 err(1, "setup_globals: strdup");
4241         if ((bar_fonts[2] = strdup("-misc-fixed-medium-r-*-*-*-*-*-*-*-*-*-*"))
4242             == NULL)
4243                 err(1, "setup_globals: strdup");
4244         if ((spawn_term[0] = strdup("xterm")) == NULL)
4245                 err(1, "setup_globals: strdup");
4246 }
4247
4248 void
4249 workaround(void)
4250 {
4251         int                     i;
4252         Atom                    netwmcheck, netwmname, utf8_string;
4253         Window                  root;
4254
4255         /* work around sun jdk bugs, code from wmname */
4256         netwmcheck = XInternAtom(display, "_NET_SUPPORTING_WM_CHECK", False);
4257         netwmname = XInternAtom(display, "_NET_WM_NAME", False);
4258         utf8_string = XInternAtom(display, "UTF8_STRING", False);
4259         for (i = 0; i < ScreenCount(display); i++) {
4260                 root = screens[i].root;
4261                 XChangeProperty(display, root, netwmcheck, XA_WINDOW, 32,
4262                     PropModeReplace, (unsigned char *)&root, 1);
4263                 XChangeProperty(display, root, netwmname, utf8_string, 8,
4264                     PropModeReplace, "LG3D", strlen("LG3D"));
4265         }
4266 }
4267
4268 int
4269 main(int argc, char *argv[])
4270 {
4271         struct passwd           *pwd;
4272         struct swm_region       *r, *rr;
4273         struct ws_win           *winfocus = NULL;
4274         char                    conf[PATH_MAX], *cfile = NULL;
4275         struct stat             sb;
4276         XEvent                  e;
4277         int                     xfd, i;
4278         fd_set                  rd;
4279
4280         start_argv = argv;
4281         fprintf(stderr, "Welcome to scrotwm V%s cvs tag: %s\n",
4282             SWM_VERSION, cvstag);
4283         if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
4284                 warnx("no locale support");
4285
4286         if (!(display = XOpenDisplay(0)))
4287                 errx(1, "can not open display");
4288
4289         if (active_wm())
4290                 errx(1, "other wm running");
4291
4292         /* handle some signale */
4293         installsignal(SIGINT, "INT");
4294         installsignal(SIGHUP, "HUP");
4295         installsignal(SIGQUIT, "QUIT");
4296         installsignal(SIGTERM, "TERM");
4297         installsignal(SIGCHLD, "CHLD");
4298
4299         astate = XInternAtom(display, "WM_STATE", False);
4300         aprot = XInternAtom(display, "WM_PROTOCOLS", False);
4301         adelete = XInternAtom(display, "WM_DELETE_WINDOW", False);
4302         takefocus = XInternAtom(display, "WM_TAKE_FOCUS", False);
4303
4304         /* look for local and global conf file */
4305         pwd = getpwuid(getuid());
4306         if (pwd == NULL)
4307                 errx(1, "invalid user %d", getuid());
4308
4309         setup_screens();
4310         setup_globals();
4311         setup_keys();
4312         setup_quirks();
4313         setup_spawn();
4314
4315         snprintf(conf, sizeof conf, "%s/.%s", pwd->pw_dir, SWM_CONF_FILE);
4316         if (stat(conf, &sb) != -1) {
4317                 if (S_ISREG(sb.st_mode))
4318                         cfile = conf;
4319         } else {
4320                 /* try global conf file */
4321                 snprintf(conf, sizeof conf, "/etc/%s", SWM_CONF_FILE);
4322                 if (!stat(conf, &sb))
4323                         if (S_ISREG(sb.st_mode))
4324                                 cfile = conf;
4325         }
4326         if (cfile)
4327                 conf_load(cfile);
4328
4329         /* setup all bars */
4330         for (i = 0; i < ScreenCount(display); i++)
4331                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
4332                         if (winfocus == NULL)
4333                                 winfocus = TAILQ_FIRST(&r->ws->winlist);
4334                         bar_setup(r);
4335                 }
4336
4337         /* set some values to work around bad programs */
4338         workaround();
4339
4340         grabkeys();
4341         stack();
4342
4343         xfd = ConnectionNumber(display);
4344         while (running) {
4345                 while (XPending(display)) {
4346                         XNextEvent(display, &e);
4347                         if (running == 0)
4348                                 goto done;
4349                         if (e.type < LASTEvent) {
4350                                 dumpevent(&e);
4351                                 if (handler[e.type])
4352                                         handler[e.type](&e);
4353                                 else
4354                                         DNPRINTF(SWM_D_EVENT,
4355                                             "win: %lu unknown event: %d\n",
4356                                             e.xany.window, e.type);
4357                         } else {
4358                                 switch (e.type - xrandr_eventbase) {
4359                                 case RRScreenChangeNotify:
4360                                         screenchange(&e);
4361                                         break;
4362                                 default:
4363                                         DNPRINTF(SWM_D_EVENT,
4364                                             "win: %lu unknown xrandr event: "
4365                                             "%d\n", e.xany.window, e.type);
4366                                         break;
4367                                 }
4368                         }
4369                 }
4370
4371                 /* if we are being restarted go focus on first window */
4372                 if (winfocus) {
4373                         rr = TAILQ_FIRST(&screens[0].rl);
4374                         /* move pointer to first screen if multi screen */
4375                         if (ScreenCount(display) > 1 || outputs > 1)
4376                                 XWarpPointer(display, None, rr->s[0].root,
4377                                     0, 0, 0, 0, rr->g.x,
4378                                     rr->g.y + bar_enabled ? bar_height : 0);
4379
4380                         focus_win(winfocus);
4381                         winfocus = NULL;
4382                         continue;
4383                 }
4384
4385                 FD_ZERO(&rd);
4386                 FD_SET(xfd, &rd);
4387                 if (select(xfd + 1, &rd, NULL, NULL, NULL) == -1)
4388                         if (errno != EINTR)
4389                                 DNPRINTF(SWM_D_MISC, "select failed");
4390                 if (running == 0)
4391                         goto done;
4392                 if (bar_alarm) {
4393                         bar_alarm = 0;
4394                         bar_update();
4395                 }
4396         }
4397 done:
4398         bar_extra_stop();
4399
4400         XCloseDisplay(display);
4401
4402         return (0);
4403 }