scrotwm.c

   1 /* $scrotwm$ */
   2 /*
   3  * Copyright (c) 2009 Marco Peereboom <marco@peereboom.us>
   4  * Copyright (c) 2009 Ryan McBride <mcbride@countersiege.com>
   5  * Copyright (c) 2009 Darrin Chandler <dwchandler@stilyagin.com>
   6  * Copyright (c) 2009 Pierre-Yves Ritschard <pyr@spootnik.org>
   7  *
   8  * Permission to use, copy, modify, and distribute this software for any
   9  * purpose with or without fee is hereby granted, provided that the above
  10  * copyright notice and this permission notice appear in all copies.
  11  *
  12  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  13  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  14  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  15  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  16  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  17  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  18  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  19  */
  20 /*
  21  * Much code and ideas taken from dwm under the following license:
  22  * MIT/X Consortium License
  23  *
  24  * 2006-2008 Anselm R Garbe <garbeam at gmail dot com>
  25  * 2006-2007 Sander van Dijk <a dot h dot vandijk at gmail dot com>
  26  * 2006-2007 Jukka Salmi <jukka at salmi dot ch>
  27  * 2007 Premysl Hruby <dfenze at gmail dot com>
  28  * 2007 Szabolcs Nagy <nszabolcs at gmail dot com>
  29  * 2007 Christof Musik <christof at sendfax dot de>
  30  * 2007-2008 Enno Gottox Boland <gottox at s01 dot de>
  31  * 2007-2008 Peter Hartlich <sgkkr at hartlich dot com>
  32  * 2008 Martin Hurton <martin dot hurton at gmail dot com>
  33  *
  34  * Permission is hereby granted, free of charge, to any person obtaining a
  35  * copy of this software and associated documentation files (the "Software"),
  36  * to deal in the Software without restriction, including without limitation
  37  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  38  * and/or sell copies of the Software, and to permit persons to whom the
  39  * Software is furnished to do so, subject to the following conditions:
  40  *
  41  * The above copyright notice and this permission notice shall be included in
  42  * all copies or substantial portions of the Software.
  43  *
  44  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  45  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  46  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  47  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  48  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  49  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  50  * DEALINGS IN THE SOFTWARE.
  51  */
  52
  53 static const char       *cvstag = "$scrotwm$";
  54
  55 #define SWM_VERSION     "0.9.12"
  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         int                     putback;
 945
 946         DNPRINTF(SWM_D_EVENT, "set_win_state: window: %lu\n", win->id);
 947
 948         if (win == NULL)
 949                 return;
 950         /* make sure we drain everything */
 951         XSync(display, True);
 952
 953         /* make sure we still exist too */
 954         if (XGetWindowAttributes(display, win->id, &wa) == BadWindow)
 955                 return;
 956
 957         XChangeProperty(display, win->id, astate, astate, 32, PropModeReplace,
 958             (unsigned char *)data, 2);
 959
 960         /* wait for completion of XChangeProperty */
 961         putback = 0;
 962         while (XCheckIfEvent(display, &ev, set_win_notify_cb, (char *)win))
 963                 putback = 1;
 964         if (putback)
 965                 XPutBackEvent(display, &ev);
 966 }
 967
 968 long
 969 getstate(Window w)
 970 {
 971         int                     format, status;
 972         long                    result = -1;
 973         unsigned char           *p = NULL;
 974         unsigned long           n, extra;
 975         Atom                    real;
 976
 977         status = XGetWindowProperty(display, w, astate, 0L, 2L, False, astate,
 978             &real, &format, &n, &extra, (unsigned char **)&p);
 979         if (status != Success)
 980                 return (-1);
 981         if (n != 0)
 982                 result = *((long *)p);
 983         XFree(p);
 984         return (result);
 985 }
 986
 987 void
 988 version(struct swm_region *r, union arg *args)
 989 {
 990         bar_version = !bar_version;
 991         if (bar_version)
 992                 snprintf(bar_vertext, sizeof bar_vertext, "Version: %s CVS: %s",
 993                     SWM_VERSION, cvstag);
 994         else
 995                 strlcpy(bar_vertext, "", sizeof bar_vertext);
 996         bar_update();
 997 }
 998
 999 void
1000 client_msg(struct ws_win *win, Atom a)
1001 {
1002         XClientMessageEvent     cm;
1003
1004         if (win == NULL)
1005                 return;
1006
1007         bzero(&cm, sizeof cm);
1008         cm.type = ClientMessage;
1009         cm.window = win->id;
1010         cm.message_type = aprot;
1011         cm.format = 32;
1012         cm.data.l[0] = a;
1013         cm.data.l[1] = CurrentTime;
1014         XSendEvent(display, win->id, False, 0L, (XEvent *)&cm);
1015 }
1016
1017 void
1018 config_win(struct ws_win *win)
1019 {
1020         XConfigureEvent         ce;
1021
1022         DNPRINTF(SWM_D_MISC, "config_win: win %lu x %d y %d w %d h %d\n",
1023             win->id, win->g.x, win->g.y, win->g.w, win->g.h);
1024
1025         if (win == NULL)
1026                 return;
1027
1028         ce.type = ConfigureNotify;
1029         ce.display = display;
1030         ce.event = win->id;
1031         ce.window = win->id;
1032         ce.x = win->g.x;
1033         ce.y = win->g.y;
1034         ce.width = win->g.w;
1035         ce.height = win->g.h;
1036         ce.border_width = 1; /* XXX store this! */
1037         ce.above = None;
1038         ce.override_redirect = False;
1039         XSendEvent(display, win->id, False, StructureNotifyMask, (XEvent *)&ce);
1040 }
1041
1042 int
1043 count_win(struct workspace *ws, int count_transient)
1044 {
1045         struct ws_win           *win;
1046         int                     count = 0;
1047
1048         TAILQ_FOREACH(win, &ws->winlist, entry) {
1049                 if (count_transient == 0 && win->floating)
1050                         continue;
1051                 if (count_transient == 0 && win->transient)
1052                         continue;
1053                 count++;
1054         }
1055         DNPRINTF(SWM_D_MISC, "count_win: %d\n", count);
1056
1057         return (count);
1058 }
1059
1060 void
1061 quit(struct swm_region *r, union arg *args)
1062 {
1063         DNPRINTF(SWM_D_MISC, "quit\n");
1064         running = 0;
1065 }
1066
1067 Bool
1068 unmap_window_cb(Display *d, XEvent *e, char *arg)
1069 {
1070         struct ws_win           *win = (struct ws_win *)arg;
1071
1072         if (win && win->id == e->xany.window && e->xany.type == UnmapNotify)
1073                         return (True);
1074         return (False);
1075 }
1076
1077 void
1078 unmap_window(struct ws_win *win)
1079 {
1080         XEvent                  ev;
1081         XWindowAttributes       wa;
1082         int                     putback;
1083
1084         if (win == NULL)
1085                 return;
1086
1087         /* make sure we still exist too */
1088         if (XGetWindowAttributes(display, win->id, &wa) == BadWindow)
1089                 return;
1090
1091         /* don't unmap again */
1092         if (wa.map_state == IsUnmapped && getstate(win->id) == IconicState)
1093                 return;
1094
1095         /* java shits itself when windows are set to iconic state */
1096         if (win->java == 0)
1097                 set_win_state(win, IconicState);
1098
1099         XUnmapWindow(display, win->id);
1100
1101         /* make sure we wait for XUnmapWindow completion */
1102         putback = 0;
1103         while (XCheckIfEvent(display, &ev, unmap_window_cb, (char *)win))
1104                 putback = 1;
1105         if (putback)
1106                 XPutBackEvent(display, &ev);
1107 }
1108
1109 void
1110 unmap_all(void)
1111 {
1112         struct ws_win           *win;
1113         int                     i, j;
1114
1115         for (i = 0; i < ScreenCount(display); i++)
1116                 for (j = 0; j < SWM_WS_MAX; j++)
1117                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
1118                                 unmap_window(win);
1119 }
1120
1121 void
1122 fake_keypress(struct ws_win *win, int keysym, int modifiers)
1123 {
1124         XKeyEvent event;
1125
1126         if (win == NULL)
1127                 return;
1128
1129         event.display = display;        /* Ignored, but what the hell */
1130         event.window = win->id;
1131         event.root = win->s->root;
1132         event.subwindow = None;
1133         event.time = CurrentTime;
1134         event.x = win->g.x;
1135         event.y = win->g.y;
1136         event.x_root = 1;
1137         event.y_root = 1;
1138         event.same_screen = True;
1139         event.keycode = XKeysymToKeycode(display, keysym);
1140         event.state = modifiers;
1141
1142         event.type = KeyPress;
1143         XSendEvent(event.display, event.window, True,
1144             KeyPressMask, (XEvent *)&event);
1145
1146         event.type = KeyRelease;
1147         XSendEvent(event.display, event.window, True,
1148             KeyPressMask, (XEvent *)&event);
1149
1150 }
1151
1152 void
1153 restart(struct swm_region *r, union arg *args)
1154 {
1155         DNPRINTF(SWM_D_MISC, "restart: %s\n", start_argv[0]);
1156
1157         /* disable alarm because the following code may not be interrupted */
1158         alarm(0);
1159         if (signal(SIGALRM, SIG_IGN) == SIG_ERR)
1160                 errx(1, "can't disable alarm");
1161
1162         bar_extra_stop();
1163         bar_extra = 1;
1164         unmap_all();
1165         XCloseDisplay(display);
1166         execvp(start_argv[0], start_argv);
1167         fprintf(stderr, "execvp failed\n");
1168         perror(" failed");
1169         quit(NULL, NULL);
1170 }
1171
1172 struct swm_region *
1173 root_to_region(Window root)
1174 {
1175         struct swm_region       *r = NULL;
1176         Window                  rr, cr;
1177         int                     i, x, y, wx, wy;
1178         unsigned int            mask;
1179
1180         for (i = 0; i < ScreenCount(display); i++)
1181                 if (screens[i].root == root)
1182                         break;
1183
1184         if (XQueryPointer(display, screens[i].root,
1185             &rr, &cr, &x, &y, &wx, &wy, &mask) != False) {
1186                 /* choose a region based on pointer location */
1187                 TAILQ_FOREACH(r, &screens[i].rl, entry)
1188                         if (x >= X(r) && x <= X(r) + WIDTH(r) &&
1189                             y >= Y(r) && y <= Y(r) + HEIGHT(r))
1190                                 break;
1191         }
1192
1193         if (r == NULL)
1194                 r = TAILQ_FIRST(&screens[i].rl);
1195
1196         return (r);
1197 }
1198
1199 struct ws_win *
1200 find_window(Window id)
1201 {
1202         struct ws_win           *win;
1203         int                     i, j;
1204
1205         for (i = 0; i < ScreenCount(display); i++)
1206                 for (j = 0; j < SWM_WS_MAX; j++)
1207                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
1208                                 if (id == win->id)
1209                                         return (win);
1210         return (NULL);
1211 }
1212
1213 void
1214 spawn(struct swm_region *r, union arg *args)
1215 {
1216         char                    *ret;
1217         int                     si;
1218
1219         DNPRINTF(SWM_D_MISC, "spawn: %s\n", args->argv[0]);
1220         /*
1221          * The double-fork construct avoids zombie processes and keeps the code
1222          * clean from stupid signal handlers.
1223          */
1224         if (fork() == 0) {
1225                 if (fork() == 0) {
1226                         if (display)
1227                                 close(ConnectionNumber(display));
1228                         setenv("LD_PRELOAD", SWM_LIB, 1);
1229                         if (asprintf(&ret, "%d", r->ws->idx)) {
1230                                 setenv("_SWM_WS", ret, 1);
1231                                 free(ret);
1232                         }
1233                         if (asprintf(&ret, "%d", getpid())) {
1234                                 setenv("_SWM_PID", ret, 1);
1235                                 free(ret);
1236                         }
1237                         setsid();
1238                         /* kill stdin, mplayer, ssh-add etc. need that */
1239                         si = open("/dev/null", O_RDONLY, 0);
1240                         if (si == -1)
1241                                 err(1, "open /dev/null");
1242                         if (dup2(si, 0) == -1)
1243                                 err(1, "dup2 /dev/null");
1244                         execvp(args->argv[0], args->argv);
1245                         fprintf(stderr, "execvp failed\n");
1246                         perror(" failed");
1247                 }
1248                 exit(0);
1249         }
1250 }
1251
1252 void
1253 spawnterm(struct swm_region *r, union arg *args)
1254 {
1255         DNPRINTF(SWM_D_MISC, "spawnterm\n");
1256
1257         if (term_width)
1258                 setenv("_SWM_XTERM_FONTADJ", "", 1);
1259         spawn(r, args);
1260 }
1261
1262 void
1263 unfocus_win(struct ws_win *win)
1264 {
1265         if (win == NULL)
1266                 return;
1267         if (win->ws == NULL)
1268                 return;
1269         if (win->ws->r == NULL)
1270                 return;
1271
1272         if (win->ws->focus == win) {
1273                 win->ws->focus = NULL;
1274                 win->ws->focus_prev = win;
1275         }
1276
1277         grabbuttons(win, 0);
1278         XSetWindowBorder(display, win->id,
1279             win->ws->r->s->c[SWM_S_COLOR_UNFOCUS].color);
1280 }
1281
1282 void
1283 unfocus_all(void)
1284 {
1285         struct ws_win           *win;
1286         int                     i, j;
1287
1288         DNPRINTF(SWM_D_FOCUS, "unfocus_all:\n");
1289
1290         for (i = 0; i < ScreenCount(display); i++)
1291                 for (j = 0; j < SWM_WS_MAX; j++)
1292                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
1293                                 unfocus_win(win);
1294 }
1295
1296 void
1297 focus_win(struct ws_win *win)
1298 {
1299         DNPRINTF(SWM_D_FOCUS, "focus_win: id: %lu\n", win ? win->id : 0);
1300
1301         if (win == NULL)
1302                 return;
1303         if (win->ws == NULL)
1304                 return;
1305
1306         /* use big hammer to make sure it works under all use cases */
1307         unfocus_all();
1308         win->ws->focus = win;
1309
1310         if (win->ws->r != NULL) {
1311                 XSetWindowBorder(display, win->id,
1312                     win->ws->r->s->c[SWM_S_COLOR_FOCUS].color);
1313                 grabbuttons(win, 1);
1314                 if (win->ws->cur_layout->flags & SWM_L_MAPONFOCUS)
1315                         XMapRaised(display, win->id);
1316                 if (win->java == 0)
1317                         XSetInputFocus(display, win->id,
1318                             RevertToPointerRoot, CurrentTime);
1319         }
1320 }
1321
1322 void
1323 switchws(struct swm_region *r, union arg *args)
1324 {
1325         int                     wsid = args->id;
1326         struct swm_region       *this_r, *other_r;
1327         struct ws_win           *win, *winfocus = NULL, *parent = NULL;
1328         struct workspace        *new_ws, *old_ws;
1329
1330         if (!(r && r->s)) {
1331                 fprintf(stderr, "r && r->s failed\n");
1332                 abort();
1333         }
1334         if (wsid < 0 || wsid > SWM_WS_MAX) {
1335                 fprintf(stderr, "illegal wsid\n");
1336                 abort();
1337         }
1338
1339         this_r = r;
1340         old_ws = this_r->ws;
1341         new_ws = &this_r->s->ws[wsid];
1342
1343         DNPRINTF(SWM_D_WS, "switchws screen[%d]:%dx%d+%d+%d: "
1344             "%d -> %d\n", r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r),
1345             old_ws->idx, wsid);
1346
1347         if (new_ws == NULL || old_ws == NULL) {
1348                 fprintf(stderr, "new_ws = %p old_ws = %p\n", new_ws, old_ws);
1349                 abort();
1350         }
1351
1352         if (new_ws == old_ws)
1353                 return;
1354
1355         /* get focus window */
1356         if (new_ws->focus)
1357                 winfocus = new_ws->focus;
1358         else if (new_ws->focus_prev)
1359                 winfocus = new_ws->focus_prev;
1360         else
1361                 winfocus = TAILQ_FIRST(&new_ws->winlist);
1362
1363         other_r = new_ws->r;
1364         if (other_r == NULL) {
1365                 /* if the other workspace is hidden, switch windows */
1366                 if (old_ws->r != NULL)
1367                         old_ws->old_r = old_ws->r;
1368                 old_ws->r = NULL;
1369                 old_ws->restack = 1;
1370
1371                 /*
1372                  * Map new windows first if they were here before
1373                  * to minimize ugly blinking.
1374                  */
1375                 if (new_ws->old_r == this_r)
1376                         TAILQ_FOREACH(win, &new_ws->winlist, entry)
1377                                 if (!(win->ws->cur_layout->flags &
1378                                     SWM_L_MAPONFOCUS))
1379                                         XMapRaised(display, win->id);
1380
1381                 TAILQ_FOREACH(win, &old_ws->winlist, entry)
1382                         unmap_window(win);
1383         } else {
1384                 other_r->ws = old_ws;
1385                 old_ws->r = other_r;
1386         }
1387         this_r->ws = new_ws;
1388         new_ws->r = this_r;
1389
1390         ignore_enter = 1;
1391         stack();
1392         if (winfocus) {
1393                 /* make sure we see the parent window */
1394                 if (winfocus->transient) {
1395                         parent = find_window(winfocus->transient);
1396                         if (parent)
1397                                 focus_win(parent);
1398                 }
1399
1400                 focus_win(winfocus);
1401         }
1402         ignore_enter = 0;
1403         bar_update();
1404 }
1405
1406 void
1407 cyclews(struct swm_region *r, union arg *args)
1408 {
1409         union                   arg a;
1410         struct swm_screen       *s = r->s;
1411
1412         DNPRINTF(SWM_D_WS, "cyclews id %d "
1413             "in screen[%d]:%dx%d+%d+%d ws %d\n", args->id,
1414             r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
1415
1416         a.id = r->ws->idx;
1417         do {
1418                 switch (args->id) {
1419                 case SWM_ARG_ID_CYCLEWS_UP:
1420                         if (a.id < SWM_WS_MAX - 1)
1421                                 a.id++;
1422                         else
1423                                 a.id = 0;
1424                         break;
1425                 case SWM_ARG_ID_CYCLEWS_DOWN:
1426                         if (a.id > 0)
1427                                 a.id--;
1428                         else
1429                                 a.id = SWM_WS_MAX - 1;
1430                         break;
1431                 default:
1432                         return;
1433                 };
1434
1435                 if (cycle_empty == 0 && TAILQ_EMPTY(&s->ws[a.id].winlist))
1436                         continue;
1437                 if (cycle_visible == 0 && s->ws[a.id].r != NULL)
1438                         continue;
1439
1440                 switchws(r, &a);
1441         } while (a.id != r->ws->idx);
1442 }
1443
1444 void
1445 cyclescr(struct swm_region *r, union arg *args)
1446 {
1447         struct swm_region       *rr = NULL;
1448         struct workspace        *ws = NULL;
1449         struct ws_win           *winfocus = NULL;
1450         int                     i, x, y;
1451
1452         /* do nothing if we don't have more than one screen */
1453         if (!(ScreenCount(display) > 1 || outputs > 1))
1454                 return;
1455
1456         i = r->s->idx;
1457         switch (args->id) {
1458         case SWM_ARG_ID_CYCLESC_UP:
1459                 rr = TAILQ_NEXT(r, entry);
1460                 if (rr == NULL)
1461                         rr = TAILQ_FIRST(&screens[i].rl);
1462                 break;
1463         case SWM_ARG_ID_CYCLESC_DOWN:
1464                 rr = TAILQ_PREV(r, swm_region_list, entry);
1465                 if (rr == NULL)
1466                         rr = TAILQ_LAST(&screens[i].rl, swm_region_list);
1467                 break;
1468         default:
1469                 return;
1470         };
1471         if (rr == NULL)
1472                 return;
1473
1474         ws = rr->ws;
1475         winfocus = ws->focus;
1476         if (winfocus == NULL)
1477                 winfocus = ws->focus_prev;
1478         if (winfocus) {
1479                 /* use window coordinates */
1480                 x = winfocus->g.x + 1;
1481                 y = winfocus->g.y + 1;
1482         } else {
1483                 /* use region coordinates */
1484                 x = rr->g.x + 1;
1485                 y = rr->g.y + 1 + bar_enabled ? bar_height : 0;
1486         }
1487
1488         unfocus_all();
1489         XSetInputFocus(display, PointerRoot, RevertToPointerRoot, CurrentTime);
1490         XWarpPointer(display, None, rr->s[i].root, 0, 0, 0, 0, x, y);
1491
1492         focus_win(winfocus);
1493 }
1494
1495 void
1496 swapwin(struct swm_region *r, union arg *args)
1497 {
1498         struct ws_win           *target, *source;
1499         struct ws_win           *cur_focus;
1500         struct ws_win_list      *wl;
1501
1502
1503         DNPRINTF(SWM_D_WS, "swapwin id %d "
1504             "in screen %d region %dx%d+%d+%d ws %d\n", args->id,
1505             r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
1506
1507         cur_focus = r->ws->focus;
1508         if (cur_focus == NULL)
1509                 return;
1510
1511         source = cur_focus;
1512         wl = &source->ws->winlist;
1513
1514         switch (args->id) {
1515         case SWM_ARG_ID_SWAPPREV:
1516                 target = TAILQ_PREV(source, ws_win_list, entry);
1517                 TAILQ_REMOVE(wl, cur_focus, entry);
1518                 if (target == NULL)
1519                         TAILQ_INSERT_TAIL(wl, source, entry);
1520                 else
1521                         TAILQ_INSERT_BEFORE(target, source, entry);
1522                 break;
1523         case SWM_ARG_ID_SWAPNEXT:
1524                 target = TAILQ_NEXT(source, entry);
1525                 TAILQ_REMOVE(wl, source, entry);
1526                 if (target == NULL)
1527                         TAILQ_INSERT_HEAD(wl, source, entry);
1528                 else
1529                         TAILQ_INSERT_AFTER(wl, target, source, entry);
1530                 break;
1531         case SWM_ARG_ID_SWAPMAIN:
1532                 target = TAILQ_FIRST(wl);
1533                 if (target == source) {
1534                         if (source->ws->focus_prev != NULL &&
1535                             source->ws->focus_prev != target)
1536
1537                                 source = source->ws->focus_prev;
1538                         else
1539                                 return;
1540                 }
1541                 if (target == NULL || source == NULL)
1542                         return;
1543                 source->ws->focus_prev = target;
1544                 TAILQ_REMOVE(wl, target, entry);
1545                 TAILQ_INSERT_BEFORE(source, target, entry);
1546                 TAILQ_REMOVE(wl, source, entry);
1547                 TAILQ_INSERT_HEAD(wl, source, entry);
1548                 break;
1549         default:
1550                 DNPRINTF(SWM_D_MOVE, "invalid id: %d\n", args->id);
1551                 return;
1552         }
1553
1554         ignore_enter = 1;
1555         stack();
1556 }
1557
1558 void
1559 focus(struct swm_region *r, union arg *args)
1560 {
1561         struct ws_win           *winfocus, *winlostfocus;
1562         struct ws_win_list      *wl;
1563         struct ws_win           *cur_focus;
1564
1565         DNPRINTF(SWM_D_FOCUS, "focus: id %d\n", args->id);
1566
1567         cur_focus = r->ws->focus;
1568         if (cur_focus == NULL)
1569                 return;
1570
1571         wl = &cur_focus->ws->winlist;
1572
1573         winlostfocus = cur_focus;
1574
1575         switch (args->id) {
1576         case SWM_ARG_ID_FOCUSPREV:
1577                 winfocus = TAILQ_PREV(cur_focus, ws_win_list, entry);
1578                 if (winfocus == NULL)
1579                         winfocus = TAILQ_LAST(wl, ws_win_list);
1580                 break;
1581
1582         case SWM_ARG_ID_FOCUSNEXT:
1583                 winfocus = TAILQ_NEXT(cur_focus, entry);
1584                 if (winfocus == NULL)
1585                         winfocus = TAILQ_FIRST(wl);
1586                 break;
1587
1588         case SWM_ARG_ID_FOCUSMAIN:
1589                 winfocus = TAILQ_FIRST(wl);
1590                 if (winfocus == cur_focus)
1591                         winfocus = cur_focus->ws->focus_prev;
1592                 if (winfocus == NULL)
1593                         return;
1594                 break;
1595
1596         default:
1597                 return;
1598         }
1599
1600         if (winfocus == winlostfocus || winfocus == NULL)
1601                 return;
1602
1603         focus_win(winfocus);
1604 }
1605
1606 void
1607 cycle_layout(struct swm_region *r, union arg *args)
1608 {
1609         struct workspace        *ws = r->ws;
1610         struct ws_win           *winfocus, *parent = NULL;
1611
1612         DNPRINTF(SWM_D_EVENT, "cycle_layout: workspace: %d\n", ws->idx);
1613
1614         winfocus = ws->focus;
1615
1616         ws->cur_layout++;
1617         if (ws->cur_layout->l_stack == NULL)
1618                 ws->cur_layout = &layouts[0];
1619
1620         ignore_enter = 1;
1621         stack();
1622         /* make sure we see the parent window */
1623         if (winfocus) {
1624                 if (winfocus->transient)
1625                         parent = find_window(winfocus->transient);
1626                 if (parent)
1627                         focus_win(parent);
1628                 focus_win(winfocus);
1629         }
1630         ignore_enter = 0;
1631 }
1632
1633 void
1634 stack_config(struct swm_region *r, union arg *args)
1635 {
1636         struct workspace        *ws = r->ws;
1637
1638         DNPRINTF(SWM_D_STACK, "stack_config for workspace %d (id %d\n",
1639             args->id, ws->idx);
1640
1641         if (ws->cur_layout->l_config != NULL)
1642                 ws->cur_layout->l_config(ws, args->id);
1643
1644         if (args->id != SWM_ARG_ID_STACKINIT);
1645                 stack();
1646 }
1647
1648 void
1649 stack(void) {
1650         struct swm_geometry     g;
1651         struct swm_region       *r;
1652         int                     i, j;
1653
1654         DNPRINTF(SWM_D_STACK, "stack\n");
1655
1656         for (i = 0; i < ScreenCount(display); i++) {
1657                 j = 0;
1658                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
1659                         DNPRINTF(SWM_D_STACK, "stacking workspace %d "
1660                             "(screen %d, region %d)\n", r->ws->idx, i, j++);
1661
1662                         /* start with screen geometry, adjust for bar */
1663                         if (r == NULL) {
1664                                 fprintf(stderr, "illegal r\n");
1665                                 abort();
1666                         }
1667                         g = r->g;
1668                         g.w -= 2;
1669                         g.h -= 2;
1670                         if (bar_enabled) {
1671                                 g.y += bar_height;
1672                                 g.h -= bar_height;
1673                         }
1674                         if (r->ws == NULL) {
1675                                 fprintf(stderr, "illegal ws\n");
1676                                 abort();
1677                         }
1678                         if (r->ws->cur_layout == NULL) {
1679                                 fprintf(stderr, "illegal cur_layout\n");
1680                                 abort();
1681                         }
1682                         r->ws->restack = 0;
1683                         if (r->ws->cur_layout->l_stack == NULL) {
1684                                 fprintf(stderr, "illegal l_stack\n");
1685                                 abort();
1686                         }
1687                         r->ws->cur_layout->l_stack(r->ws, &g);
1688                 }
1689         }
1690         if (font_adjusted)
1691                 font_adjusted--;
1692 }
1693
1694 void
1695 stack_floater(struct ws_win *win, struct swm_region *r)
1696 {
1697         unsigned int            mask;
1698         XWindowChanges          wc;
1699
1700         if (win == NULL)
1701                 return;
1702
1703         bzero(&wc, sizeof wc);
1704         mask = CWX | CWY | CWBorderWidth | CWWidth | CWHeight;
1705         if ((win->quirks & SWM_Q_FULLSCREEN) && (win->g.w == WIDTH(r)) &&
1706             (win->g.h == HEIGHT(r)))
1707                 wc.border_width = 0;
1708         else
1709                 wc.border_width = 1;
1710         if (win->transient && (win->quirks & SWM_Q_TRANSSZ)) {
1711                 win->g.w = (double)WIDTH(r) * dialog_ratio;
1712                 win->g.h = (double)HEIGHT(r) * dialog_ratio;
1713         }
1714         wc.width = win->g.w;
1715         wc.height = win->g.h;
1716         if (win->manual) {
1717                 wc.x = win->g.x;
1718                 wc.y = win->g.y;
1719         } else {
1720                 wc.x = (WIDTH(r) - win->g.w) / 2;
1721                 wc.y = (HEIGHT(r) - win->g.h) / 2;
1722         }
1723
1724         /* adjust for region */
1725         wc.x += r->g.x;
1726         wc.y += r->g.y;
1727
1728         DNPRINTF(SWM_D_STACK, "stack_floater: win %lu x %d y %d w %d h %d\n",
1729             win->id, wc.x, wc.y, wc.width, wc.height);
1730
1731         XConfigureWindow(display, win->id, mask, &wc);
1732 }
1733
1734 /*
1735  * Send keystrokes to terminal to decrease/increase the font size as the
1736  * window size changes.
1737  */
1738 void
1739 adjust_font(struct ws_win *win)
1740 {
1741         if (!(win->quirks & SWM_Q_XTERM_FONTADJ) ||
1742             win->floating || win->transient)
1743                 return;
1744
1745         if (win->sh.width_inc && win->last_inc != win->sh.width_inc &&
1746             win->g.w / win->sh.width_inc < term_width &&
1747             win->font_steps < SWM_MAX_FONT_STEPS) {
1748                 win->font_size_boundary[win->font_steps] =
1749                     (win->sh.width_inc * term_width) + win->sh.base_width;
1750                 win->font_steps++;
1751                 font_adjusted++;
1752                 win->last_inc = win->sh.width_inc;
1753                 fake_keypress(win, XK_KP_Subtract, ShiftMask);
1754         } else if (win->font_steps && win->last_inc != win->sh.width_inc &&
1755             win->g.w > win->font_size_boundary[win->font_steps - 1]) {
1756                 win->font_steps--;
1757                 font_adjusted++;
1758                 win->last_inc = win->sh.width_inc;
1759                 fake_keypress(win, XK_KP_Add, ShiftMask);
1760         }
1761 }
1762
1763 #define SWAPXY(g)       do {                            \
1764         int tmp;                                        \
1765         tmp = (g)->y; (g)->y = (g)->x; (g)->x = tmp;    \
1766         tmp = (g)->h; (g)->h = (g)->w; (g)->w = tmp;    \
1767 } while (0)
1768 void
1769 stack_master(struct workspace *ws, struct swm_geometry *g, int rot, int flip)
1770 {
1771         XWindowChanges          wc;
1772         struct swm_geometry     win_g, r_g = *g;
1773         struct ws_win           *win;
1774         int                     i, j, s, stacks;
1775         int                     w_inc = 1, h_inc, w_base = 1, h_base;
1776         int                     hrh, extra = 0, h_slice, last_h = 0;
1777         int                     split, colno, winno, mwin, msize, mscale;
1778         int                     remain, missing, v_slice;
1779         unsigned int            mask;
1780
1781         DNPRINTF(SWM_D_STACK, "stack_master: workspace: %d\n rot=%s flip=%s",
1782             ws->idx, rot ? "yes" : "no", flip ? "yes" : "no");
1783
1784         winno = count_win(ws, 0);
1785         if (winno == 0 && count_win(ws, 1) == 0)
1786                 return;
1787
1788         TAILQ_FOREACH(win, &ws->winlist, entry)
1789                 if (win->transient == 0 && win->floating == 0)
1790                         break;
1791
1792         if (win == NULL)
1793                 goto notiles;
1794
1795         if (rot) {
1796                 w_inc = win->sh.width_inc;
1797                 w_base = win->sh.base_width;
1798                 mwin = ws->l_state.horizontal_mwin;
1799                 mscale = ws->l_state.horizontal_msize;
1800                 stacks = ws->l_state.horizontal_stacks;
1801                 SWAPXY(&r_g);
1802         } else {
1803                 w_inc = win->sh.height_inc;
1804                 w_base = win->sh.base_height;
1805                 mwin = ws->l_state.vertical_mwin;
1806                 mscale = ws->l_state.vertical_msize;
1807                 stacks = ws->l_state.vertical_stacks;
1808         }
1809         win_g = r_g;
1810
1811         if (stacks > winno - mwin)
1812                 stacks = winno - mwin;
1813         if (stacks < 1)
1814                 stacks = 1;
1815
1816         h_slice = r_g.h / SWM_H_SLICE;
1817         if (mwin && winno > mwin) {
1818                 v_slice = r_g.w / SWM_V_SLICE;
1819
1820                 split = mwin;
1821                 colno = split;
1822                 win_g.w = v_slice * mscale;
1823
1824                 if (w_inc > 1 && w_inc < v_slice) {
1825                         /* adjust for window's requested size increment */
1826                         remain = (win_g.w - w_base) % w_inc;
1827                         missing = w_inc - remain;
1828                         win_g.w -= remain;
1829                         extra += remain;
1830                 }
1831
1832                 msize = win_g.w;
1833                 if (flip)
1834                         win_g.x += r_g.w - msize;
1835         } else {
1836                 msize = -2;
1837                 colno = split = winno / stacks;
1838                 win_g.w = ((r_g.w - (stacks * 2) + 2) / stacks);
1839         }
1840         hrh = r_g.h / colno;
1841         extra = r_g.h - (colno * hrh);
1842         win_g.h = hrh - 2;
1843
1844         /*  stack all the tiled windows */
1845         i = j = 0, s = stacks;
1846         TAILQ_FOREACH(win, &ws->winlist, entry) {
1847                 if (win->transient != 0 || win->floating != 0)
1848                         continue;
1849
1850                 if (split && i == split) {
1851                         colno = (winno - mwin) / stacks;
1852                         if (s <= (winno - mwin) % stacks)
1853                                 colno++;
1854                         split = split + colno;
1855                         hrh = (r_g.h / colno);
1856                         extra = r_g.h - (colno * hrh);
1857                         if (flip)
1858                                 win_g.x = r_g.x;
1859                         else
1860                                 win_g.x += win_g.w + 2;
1861                         win_g.w = (r_g.w - msize - (stacks * 2)) / stacks;
1862                         if (s == 1)
1863                                 win_g.w += (r_g.w - msize - (stacks * 2)) %
1864                                     stacks;
1865                         s--;
1866                         j = 0;
1867                 }
1868                 win_g.h = hrh - 2;
1869                 if (rot) {
1870                         h_inc = win->sh.width_inc;
1871                         h_base = win->sh.base_width;
1872                 } else {
1873                         h_inc = win->sh.height_inc;
1874                         h_base = win->sh.base_height;
1875                 }
1876                 if (j == colno - 1) {
1877                         win_g.h = hrh + extra;
1878                 } else if (h_inc > 1 && h_inc < h_slice) {
1879                         /* adjust for window's requested size increment */
1880                         remain = (win_g.h - h_base) % h_inc;
1881                         missing = h_inc - remain;
1882
1883                         if (missing <= extra || j == 0) {
1884                                 extra -= missing;
1885                                 win_g.h += missing;
1886                         } else {
1887                                 win_g.h -= remain;
1888                                 extra += remain;
1889                         }
1890                 }
1891
1892                 if (j == 0)
1893                         win_g.y = r_g.y;
1894                 else
1895                         win_g.y += last_h + 2;
1896
1897                 bzero(&wc, sizeof wc);
1898                 wc.border_width = 1;
1899                 if (rot) {
1900                         win->g.x = wc.x = win_g.y;
1901                         win->g.y = wc.y = win_g.x;
1902                         win->g.w = wc.width = win_g.h;
1903                         win->g.h = wc.height = win_g.w;
1904                 } else {
1905                         win->g.x = wc.x = win_g.x;
1906                         win->g.y = wc.y = win_g.y;
1907                         win->g.w = wc.width = win_g.w;
1908                         win->g.h = wc.height = win_g.h;
1909                 }
1910                 adjust_font(win);
1911                 mask = CWX | CWY | CWWidth | CWHeight | CWBorderWidth;
1912                 XConfigureWindow(display, win->id, mask, &wc);
1913                 XMapRaised(display, win->id);
1914
1915                 last_h = win_g.h;
1916                 i++;
1917                 j++;
1918         }
1919
1920  notiles:
1921         /* now, stack all the floaters and transients */
1922         TAILQ_FOREACH(win, &ws->winlist, entry) {
1923                 if (win->transient == 0 && win->floating == 0)
1924                         continue;
1925
1926                 stack_floater(win, ws->r);
1927                 XMapRaised(display, win->id);
1928         }
1929 }
1930
1931 void
1932 vertical_config(struct workspace *ws, int id)
1933 {
1934         DNPRINTF(SWM_D_STACK, "vertical_resize: workspace: %d\n", ws->idx);
1935
1936         switch (id) {
1937         case SWM_ARG_ID_STACKRESET:
1938         case SWM_ARG_ID_STACKINIT:
1939                 ws->l_state.vertical_msize = SWM_V_SLICE / 2;
1940                 ws->l_state.vertical_mwin = 1;
1941                 ws->l_state.vertical_stacks = 1;
1942                 break;
1943         case SWM_ARG_ID_MASTERSHRINK:
1944                 if (ws->l_state.vertical_msize > 1)
1945                         ws->l_state.vertical_msize--;
1946                 break;
1947         case SWM_ARG_ID_MASTERGROW:
1948                 if (ws->l_state.vertical_msize < SWM_V_SLICE - 1)
1949                         ws->l_state.vertical_msize++;
1950                 break;
1951         case SWM_ARG_ID_MASTERADD:
1952                 ws->l_state.vertical_mwin++;
1953                 break;
1954         case SWM_ARG_ID_MASTERDEL:
1955                 if (ws->l_state.vertical_mwin > 0)
1956                         ws->l_state.vertical_mwin--;
1957                 break;
1958         case SWM_ARG_ID_STACKINC:
1959                 ws->l_state.vertical_stacks++;
1960                 break;
1961         case SWM_ARG_ID_STACKDEC:
1962                 if (ws->l_state.vertical_stacks > 1)
1963                         ws->l_state.vertical_stacks--;
1964                 break;
1965         default:
1966                 return;
1967         }
1968 }
1969
1970 void
1971 vertical_stack(struct workspace *ws, struct swm_geometry *g)
1972 {
1973         DNPRINTF(SWM_D_STACK, "vertical_stack: workspace: %d\n", ws->idx);
1974
1975         stack_master(ws, g, 0, 0);
1976 }
1977
1978 void
1979 horizontal_config(struct workspace *ws, int id)
1980 {
1981         DNPRINTF(SWM_D_STACK, "horizontal_config: workspace: %d\n", ws->idx);
1982
1983         switch (id) {
1984         case SWM_ARG_ID_STACKRESET:
1985         case SWM_ARG_ID_STACKINIT:
1986                 ws->l_state.horizontal_mwin = 1;
1987                 ws->l_state.horizontal_msize = SWM_H_SLICE / 2;
1988                 ws->l_state.horizontal_stacks = 1;
1989                 break;
1990         case SWM_ARG_ID_MASTERSHRINK:
1991                 if (ws->l_state.horizontal_msize > 1)
1992                         ws->l_state.horizontal_msize--;
1993                 break;
1994         case SWM_ARG_ID_MASTERGROW:
1995                 if (ws->l_state.horizontal_msize < SWM_H_SLICE - 1)
1996                         ws->l_state.horizontal_msize++;
1997                 break;
1998         case SWM_ARG_ID_MASTERADD:
1999                 ws->l_state.horizontal_mwin++;
2000                 break;
2001         case SWM_ARG_ID_MASTERDEL:
2002                 if (ws->l_state.horizontal_mwin > 0)
2003                         ws->l_state.horizontal_mwin--;
2004                 break;
2005         case SWM_ARG_ID_STACKINC:
2006                 ws->l_state.horizontal_stacks++;
2007                 break;
2008         case SWM_ARG_ID_STACKDEC:
2009                 if (ws->l_state.horizontal_stacks > 1)
2010                         ws->l_state.horizontal_stacks--;
2011                 break;
2012         default:
2013                 return;
2014         }
2015 }
2016
2017 void
2018 horizontal_stack(struct workspace *ws, struct swm_geometry *g)
2019 {
2020         DNPRINTF(SWM_D_STACK, "vertical_stack: workspace: %d\n", ws->idx);
2021
2022         stack_master(ws, g, 1, 0);
2023 }
2024
2025 /* fullscreen view */
2026 void
2027 max_stack(struct workspace *ws, struct swm_geometry *g)
2028 {
2029         XWindowChanges          wc;
2030         struct swm_geometry     gg = *g;
2031         struct ws_win           *win, *wintrans = NULL;
2032         unsigned int            mask;
2033         int                     winno;
2034
2035         DNPRINTF(SWM_D_STACK, "max_stack: workspace: %d\n", ws->idx);
2036
2037         if (ws == NULL)
2038                 return;
2039
2040         winno = count_win(ws, 0);
2041         if (winno == 0 && count_win(ws, 1) == 0)
2042                 return;
2043
2044         TAILQ_FOREACH(win, &ws->winlist, entry) {
2045                 if (win->transient != 0) {
2046                         wintrans = win;
2047                 } else {
2048                         bzero(&wc, sizeof wc);
2049                         wc.border_width = 1;
2050                         win->g.x = wc.x = gg.x;
2051                         win->g.y = wc.y = gg.y;
2052                         win->g.w = wc.width = gg.w;
2053                         win->g.h = wc.height = gg.h;
2054                         mask = CWX | CWY | CWWidth | CWHeight | CWBorderWidth;
2055                         XConfigureWindow(display, win->id, mask, &wc);
2056
2057                         /* unmap only if we don't have multi screen */
2058                         if (win != ws->focus)
2059                                 if (!(ScreenCount(display) > 1 || outputs > 1))
2060                                         unmap_window(win);
2061                 }
2062         }
2063
2064         /* put the last transient on top */
2065         if (wintrans) {
2066                 stack_floater(wintrans, ws->r);
2067                 focus_win(wintrans); /* override */
2068         }
2069 }
2070
2071 void
2072 send_to_ws(struct swm_region *r, union arg *args)
2073 {
2074         int                     wsid = args->id;
2075         struct ws_win           *win = win, *winfocus = NULL;
2076         struct workspace        *ws, *nws;
2077         Atom                    ws_idx_atom = 0;
2078         unsigned char           ws_idx_str[SWM_PROPLEN];
2079
2080         if (r && r->ws)
2081                 win = r->ws->focus;
2082         else
2083                 return;
2084         if (win == NULL)
2085                 return;
2086
2087         DNPRINTF(SWM_D_MOVE, "send_to_ws: win: %lu\n", win->id);
2088
2089         ws = win->ws;
2090         nws = &win->s->ws[wsid];
2091
2092         /* find a window to focus */
2093         winfocus = TAILQ_PREV(win, ws_win_list, entry);
2094         if (TAILQ_FIRST(&ws->winlist) == win)
2095                 winfocus = TAILQ_NEXT(win, entry);
2096         else {
2097                 winfocus = TAILQ_PREV(win, ws_win_list, entry);
2098                 if (winfocus == NULL)
2099                         winfocus = TAILQ_LAST(&ws->winlist, ws_win_list);
2100         }
2101         /* out of windows in ws so focus on nws instead if we multi screen */
2102         if (winfocus == NULL)
2103                 if (ScreenCount(display) > 1 || outputs > 1)
2104                         winfocus = win;
2105
2106         unmap_window(win);
2107         TAILQ_REMOVE(&ws->winlist, win, entry);
2108         TAILQ_INSERT_TAIL(&nws->winlist, win, entry);
2109         win->ws = nws;
2110
2111         /* Try to update the window's workspace property */
2112         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
2113         if (ws_idx_atom &&
2114             snprintf(ws_idx_str, SWM_PROPLEN, "%d", nws->idx) < SWM_PROPLEN) {
2115                 DNPRINTF(SWM_D_PROP, "setting property _SWM_WS to %s\n",
2116                     ws_idx_str);
2117                 XChangeProperty(display, win->id, ws_idx_atom, XA_STRING, 8,
2118                     PropModeReplace, ws_idx_str, SWM_PROPLEN);
2119         }
2120
2121         if (count_win(nws, 1) == 1)
2122                 nws->focus = win;
2123         ws->restack = 1;
2124         nws->restack = 1;
2125
2126         stack();
2127         if (winfocus)
2128                 focus_win(winfocus);
2129 }
2130
2131 void
2132 wkill(struct swm_region *r, union arg *args)
2133 {
2134         DNPRINTF(SWM_D_MISC, "wkill %d\n", args->id);
2135
2136         if(r->ws->focus == NULL)
2137                 return;
2138
2139         if (args->id == SWM_ARG_ID_KILLWINDOW)
2140                 XKillClient(display, r->ws->focus->id);
2141         else
2142                 if (r->ws->focus->can_delete)
2143                         client_msg(r->ws->focus, adelete);
2144 }
2145
2146 void
2147 floating_toggle(struct swm_region *r, union arg *args)
2148 {
2149         struct ws_win   *win = r->ws->focus;
2150
2151         if (win == NULL)
2152                 return;
2153
2154         win->floating = !win->floating;
2155         win->manual = 0;
2156         stack();
2157         focus_win(win);
2158 }
2159
2160 void
2161 resize_window(struct ws_win *win, int center)
2162 {
2163         unsigned int            mask;
2164         XWindowChanges          wc;
2165         struct swm_region       *r;
2166
2167         r = root_to_region(win->wa.root);
2168         bzero(&wc, sizeof wc);
2169         mask = CWBorderWidth | CWWidth | CWHeight;
2170         wc.border_width = 1;
2171         wc.width = win->g.w;
2172         wc.height = win->g.h;
2173         if (center == SWM_ARG_ID_CENTER) {
2174                 wc.x = (WIDTH(r) - win->g.w) / 2;
2175                 wc.y = (HEIGHT(r) - win->g.h) / 2;
2176                 mask |= CWX | CWY;
2177         }
2178
2179         DNPRINTF(SWM_D_STACK, "resize_window: win %lu x %d y %d w %d h %d\n",
2180             win->id, wc.x, wc.y, wc.width, wc.height);
2181
2182         XConfigureWindow(display, win->id, mask, &wc);
2183         config_win(win);
2184 }
2185
2186 void
2187 resize(struct ws_win *win, union arg *args)
2188 {
2189         XEvent                  ev;
2190         Time                    time = 0;
2191
2192         DNPRINTF(SWM_D_MOUSE, "resize: win %lu floating %d trans %d\n",
2193             win->id, win->floating, win->transient);
2194
2195         if (!(win->transient != 0 || win->floating != 0))
2196                 return;
2197
2198         if (XGrabPointer(display, win->id, False, MOUSEMASK, GrabModeAsync,
2199             GrabModeAsync, None, None /* cursor */, CurrentTime) != GrabSuccess)
2200                 return;
2201         XWarpPointer(display, None, win->id, 0, 0, 0, 0, win->g.w, win->g.h);
2202         do {
2203                 XMaskEvent(display, MOUSEMASK | ExposureMask |
2204                     SubstructureRedirectMask, &ev);
2205                 switch(ev.type) {
2206                 case ConfigureRequest:
2207                 case Expose:
2208                 case MapRequest:
2209                         handler[ev.type](&ev);
2210                         break;
2211                 case MotionNotify:
2212                         if (ev.xmotion.x <= 1)
2213                                 ev.xmotion.x = 1;
2214                         if (ev.xmotion.y <= 1)
2215                                 ev.xmotion.y = 1;
2216                         win->g.w = ev.xmotion.x;
2217                         win->g.h = ev.xmotion.y;
2218
2219                         /* not free, don't sync more than 60 times / second */
2220                         if ((ev.xmotion.time - time) > (1000 / 60) ) {
2221                                 time = ev.xmotion.time;
2222                                 XSync(display, False);
2223                                 resize_window(win, args->id);
2224                         }
2225                         break;
2226                 }
2227         } while (ev.type != ButtonRelease);
2228         if (time) {
2229                 XSync(display, False);
2230                 resize_window(win, args->id);
2231         }
2232         XWarpPointer(display, None, win->id, 0, 0, 0, 0, win->g.w - 1,
2233             win->g.h - 1);
2234         XUngrabPointer(display, CurrentTime);
2235
2236         /* drain events */
2237         while (XCheckMaskEvent(display, EnterWindowMask, &ev));
2238 }
2239
2240 void
2241 move_window(struct ws_win *win)
2242 {
2243         unsigned int            mask;
2244         XWindowChanges          wc;
2245         struct swm_region       *r;
2246
2247         r = root_to_region(win->wa.root);
2248         bzero(&wc, sizeof wc);
2249         mask = CWX | CWY;
2250         wc.x = win->g.x;
2251         wc.y = win->g.y;
2252
2253         DNPRINTF(SWM_D_STACK, "move_window: win %lu x %d y %d w %d h %d\n",
2254             win->id, wc.x, wc.y, wc.width, wc.height);
2255
2256         XConfigureWindow(display, win->id, mask, &wc);
2257         config_win(win);
2258 }
2259
2260 void
2261 move(struct ws_win *win, union arg *args)
2262 {
2263         XEvent                  ev;
2264         Time                    time = 0;
2265         int                     restack = 0;
2266
2267         DNPRINTF(SWM_D_MOUSE, "move: win %lu floating %d trans %d\n",
2268             win->id, win->floating, win->transient);
2269
2270         if (win->floating == 0) {
2271                 win->floating = 1;
2272                 win->manual = 1;
2273                 restack = 1;
2274         }
2275
2276         if (XGrabPointer(display, win->id, False, MOUSEMASK, GrabModeAsync,
2277             GrabModeAsync, None, None /* cursor */, CurrentTime) != GrabSuccess)
2278                 return;
2279         XWarpPointer(display, None, win->id, 0, 0, 0, 0, 0, 0);
2280         do {
2281                 XMaskEvent(display, MOUSEMASK | ExposureMask |
2282                     SubstructureRedirectMask, &ev);
2283                 switch(ev.type) {
2284                 case ConfigureRequest:
2285                 case Expose:
2286                 case MapRequest:
2287                         handler[ev.type](&ev);
2288                         break;
2289                 case MotionNotify:
2290                         win->g.x = ev.xmotion.x_root;
2291                         win->g.y = ev.xmotion.y_root;
2292
2293                         /* not free, don't sync more than 60 times / second */
2294                         if ((ev.xmotion.time - time) > (1000 / 60) ) {
2295                                 time = ev.xmotion.time;
2296                                 XSync(display, False);
2297                                 move_window(win);
2298                         }
2299                         break;
2300                 }
2301         } while (ev.type != ButtonRelease);
2302         if (time) {
2303                 XSync(display, False);
2304                 move_window(win);
2305         }
2306         XWarpPointer(display, None, win->id, 0, 0, 0, 0, 0, 0);
2307         XUngrabPointer(display, CurrentTime);
2308         if (restack)
2309                 stack();
2310
2311         /* drain events */
2312         while (XCheckMaskEvent(display, EnterWindowMask, &ev));
2313 }
2314
2315 /* key definitions */
2316 void
2317 dummykeyfunc(struct swm_region *r, union arg *args)
2318 {
2319 };
2320
2321 void
2322 legacyfunc(struct swm_region *r, union arg *args)
2323 {
2324 };
2325
2326 struct keyfunc {
2327         char                    name[SWM_FUNCNAME_LEN];
2328         void                    (*func)(struct swm_region *r, union arg *);
2329         union arg               args;
2330 } keyfuncs[kf_invalid + 1] = {
2331         /* name                 function        argument */
2332         { "cycle_layout",       cycle_layout,   {0} },
2333         { "stack_reset",        stack_config,   {.id = SWM_ARG_ID_STACKRESET} },
2334         { "master_shrink",      stack_config,   {.id = SWM_ARG_ID_MASTERSHRINK} },
2335         { "master_grow",        stack_config,   {.id = SWM_ARG_ID_MASTERGROW} },
2336         { "master_add",         stack_config,   {.id = SWM_ARG_ID_MASTERADD} },
2337         { "master_del",         stack_config,   {.id = SWM_ARG_ID_MASTERDEL} },
2338         { "stack_inc",          stack_config,   {.id = SWM_ARG_ID_STACKINC} },
2339         { "stack_dec",          stack_config,   {.id = SWM_ARG_ID_STACKDEC} },
2340         { "swap_main",          swapwin,        {.id = SWM_ARG_ID_SWAPMAIN} },
2341         { "focus_next",         focus,          {.id = SWM_ARG_ID_FOCUSNEXT} },
2342         { "focus_prev",         focus,          {.id = SWM_ARG_ID_FOCUSPREV} },
2343         { "swap_next",          swapwin,        {.id = SWM_ARG_ID_SWAPNEXT} },
2344         { "swap_prev",          swapwin,        {.id = SWM_ARG_ID_SWAPPREV} },
2345         { "spawn_term",         spawnterm,      {.argv = spawn_term} },
2346         { "spawn_menu",         legacyfunc,     {0} },
2347         { "quit",               quit,           {0} },
2348         { "restart",            restart,        {0} },
2349         { "focus_main",         focus,          {.id = SWM_ARG_ID_FOCUSMAIN} },
2350         { "ws_1",               switchws,       {.id = 0} },
2351         { "ws_2",               switchws,       {.id = 1} },
2352         { "ws_3",               switchws,       {.id = 2} },
2353         { "ws_4",               switchws,       {.id = 3} },
2354         { "ws_5",               switchws,       {.id = 4} },
2355         { "ws_6",               switchws,       {.id = 5} },
2356         { "ws_7",               switchws,       {.id = 6} },
2357         { "ws_8",               switchws,       {.id = 7} },
2358         { "ws_9",               switchws,       {.id = 8} },
2359         { "ws_10",              switchws,       {.id = 9} },
2360         { "ws_next",            cyclews,        {.id = SWM_ARG_ID_CYCLEWS_UP} },
2361         { "ws_prev",            cyclews,        {.id = SWM_ARG_ID_CYCLEWS_DOWN} },
2362         { "screen_next",        cyclescr,       {.id = SWM_ARG_ID_CYCLESC_UP} },
2363         { "screen_prev",        cyclescr,       {.id = SWM_ARG_ID_CYCLESC_DOWN} },
2364         { "mvws_1",             send_to_ws,     {.id = 0} },
2365         { "mvws_2",             send_to_ws,     {.id = 1} },
2366         { "mvws_3",             send_to_ws,     {.id = 2} },
2367         { "mvws_4",             send_to_ws,     {.id = 3} },
2368         { "mvws_5",             send_to_ws,     {.id = 4} },
2369         { "mvws_6",             send_to_ws,     {.id = 5} },
2370         { "mvws_7",             send_to_ws,     {.id = 6} },
2371         { "mvws_8",             send_to_ws,     {.id = 7} },
2372         { "mvws_9",             send_to_ws,     {.id = 8} },
2373         { "mvws_10",            send_to_ws,     {.id = 9} },
2374         { "bar_toggle",         bar_toggle,     {0} },
2375         { "wind_kill",          wkill,          {.id = SWM_ARG_ID_KILLWINDOW} },
2376         { "wind_del",           wkill,          {.id = SWM_ARG_ID_DELETEWINDOW} },
2377         { "screenshot_all",     legacyfunc,     {0} },
2378         { "screenshot_wind",    legacyfunc,     {0} },
2379         { "float_toggle",       floating_toggle,{0} },
2380         { "version",            version,        {0} },
2381         { "spawn_lock",         legacyfunc,     {0} },
2382         { "spawn_initscr",      legacyfunc,     {0} },
2383         { "spawn_custom",       dummykeyfunc,   {0} },
2384         { "invalid key func",   NULL,           {0} },
2385 };
2386 struct key {
2387         unsigned int            mod;
2388         KeySym                  keysym;
2389         enum keyfuncid          funcid;
2390         char                    *spawn_name;
2391 };
2392 int                             keys_size = 0, keys_length = 0;
2393 struct key                      *keys = NULL;
2394
2395 /* mouse */
2396 enum { client_click, root_click };
2397 struct button {
2398         unsigned int            action;
2399         unsigned int            mask;
2400         unsigned int            button;
2401         void                    (*func)(struct ws_win *, union arg *);
2402         union arg               args;
2403 } buttons[] = {
2404           /* action     key             mouse button    func    args */
2405         { client_click, MODKEY,         Button3,        resize, {.id = SWM_ARG_ID_DONTCENTER} },
2406         { client_click, MODKEY | ShiftMask, Button3,    resize, {.id = SWM_ARG_ID_CENTER} },
2407         { client_click, MODKEY,         Button1,        move,   {0} },
2408 };
2409
2410 void
2411 update_modkey(unsigned int mod)
2412 {
2413         int                     i;
2414
2415         mod_key = mod;
2416         for (i = 0; i < keys_length; i++)
2417                 if (keys[i].mod & ShiftMask)
2418                         keys[i].mod = mod | ShiftMask;
2419                 else
2420                         keys[i].mod = mod;
2421
2422         for (i = 0; i < LENGTH(buttons); i++)
2423                 if (buttons[i].mask & ShiftMask)
2424                         buttons[i].mask = mod | ShiftMask;
2425                 else
2426                         buttons[i].mask = mod;
2427 }
2428
2429 /* spawn */
2430 struct spawn_prog {
2431         char                    *name;
2432         int                     argc;
2433         char                    **argv;
2434 };
2435
2436 int                             spawns_size = 0, spawns_length = 0;
2437 struct spawn_prog               *spawns = NULL;
2438
2439 void
2440 spawn_custom(struct swm_region *r, union arg *args, char *spawn_name)
2441 {
2442         union arg               a;
2443         struct spawn_prog       *prog = NULL;
2444         int                     i;
2445         char                    *ap, **real_args;
2446
2447         DNPRINTF(SWM_D_SPAWN, "spawn_custom %s\n", spawn_name);
2448
2449         /* find program */
2450         for (i = 0; i < spawns_length; i++) {
2451                 if (!strcasecmp(spawn_name, spawns[i].name))
2452                         prog = &spawns[i];
2453         }
2454         if (prog == NULL) {
2455                 fprintf(stderr, "spawn_custom: program %s not found\n",
2456                     spawn_name);
2457                 return;
2458         }
2459
2460         /* make room for expanded args */
2461         if ((real_args = calloc(prog->argc + 1, sizeof(char *))) == NULL)
2462                 err(1, "spawn_custom: calloc real_args");
2463
2464         /* expand spawn_args into real_args */
2465         for (i = 0; i < prog->argc; i++) {
2466                 ap = prog->argv[i];
2467                 DNPRINTF(SWM_D_SPAWN, "spawn_custom: raw arg = %s\n", ap);
2468                 if (!strcasecmp(ap, "$bar_border")) {
2469                         if ((real_args[i] =
2470                             strdup(r->s->c[SWM_S_COLOR_BAR_BORDER].name))
2471                             == NULL)
2472                                 err(1,  "spawn_custom border color");
2473                 } else if (!strcasecmp(ap, "$bar_color")) {
2474                         if ((real_args[i] =
2475                             strdup(r->s->c[SWM_S_COLOR_BAR].name))
2476                             == NULL)
2477                                 err(1, "spawn_custom bar color");
2478                 } else if (!strcasecmp(ap, "$bar_font")) {
2479                         if ((real_args[i] = strdup(bar_fonts[bar_fidx]))
2480                             == NULL)
2481                                 err(1, "spawn_custom bar fonts");
2482                 } else if (!strcasecmp(ap, "$bar_font_color")) {
2483                         if ((real_args[i] =
2484                             strdup(r->s->c[SWM_S_COLOR_BAR_FONT].name))
2485                             == NULL)
2486                                 err(1, "spawn_custom color font");
2487                 } else if (!strcasecmp(ap, "$color_focus")) {
2488                         if ((real_args[i] =
2489                             strdup(r->s->c[SWM_S_COLOR_FOCUS].name))
2490                             == NULL)
2491                                 err(1, "spawn_custom color focus");
2492                 } else if (!strcasecmp(ap, "$color_unfocus")) {
2493                         if ((real_args[i] =
2494                             strdup(r->s->c[SWM_S_COLOR_UNFOCUS].name))
2495                             == NULL)
2496                                 err(1, "spawn_custom color unfocus");
2497                 } else {
2498                         /* no match --> copy as is */
2499                         if ((real_args[i] = strdup(ap)) == NULL)
2500                                 err(1, "spawn_custom strdup(ap)");
2501                 }
2502                 DNPRINTF(SWM_D_SPAWN, "spawn_custom: cooked arg = %s\n",
2503                     real_args[i]);
2504         }
2505
2506 #ifdef SWM_DEBUG
2507         if ((swm_debug & SWM_D_SPAWN) != 0) {
2508                 fprintf(stderr, "spawn_custom: result = ");
2509                 for (i = 0; i < prog->argc; i++)
2510                         fprintf(stderr, "\"%s\" ", real_args[i]);
2511                 fprintf(stderr, "\n");
2512         }
2513 #endif
2514
2515         a.argv = real_args;
2516         spawn(r, &a);
2517         for (i = 0; i < prog->argc; i++)
2518                 free(real_args[i]);
2519         free(real_args);
2520 }
2521
2522 void
2523 setspawn(struct spawn_prog *prog)
2524 {
2525         int                     i, j;
2526
2527         if (prog == NULL || prog->name == NULL)
2528                 return;
2529
2530         /* find existing */
2531         for (i = 0; i < spawns_length; i++) {
2532                 if (!strcmp(spawns[i].name, prog->name)) {
2533                         /* found */
2534                         if (prog->argv == NULL) {
2535                                 /* delete */
2536                                 DNPRINTF(SWM_D_SPAWN,
2537                                     "setspawn: delete #%d %s\n",
2538                                     i, spawns[i].name);
2539                                 free(spawns[i].name);
2540                                 for (j = 0; j < spawns[i].argc; j++)
2541                                         free(spawns[i].argv[j]);
2542                                 free(spawns[i].argv);
2543                                 j = spawns_length - 1;
2544                                 if (i < j)
2545                                         spawns[i] = spawns[j];
2546                                 spawns_length--;
2547                                 free(prog->name);
2548                         } else {
2549                                 /* replace */
2550                                 DNPRINTF(SWM_D_SPAWN,
2551                                     "setspawn: replace #%d %s\n",
2552                                     i, spawns[i].name);
2553                                 free(spawns[i].name);
2554                                 for (j = 0; j < spawns[i].argc; j++)
2555                                         free(spawns[i].argv[j]);
2556                                 free(spawns[i].argv);
2557                                 spawns[i] = *prog;
2558                         }
2559                         /* found case handled */
2560                         free(prog);
2561                         return;
2562                 }
2563         }
2564
2565         if (prog->argv == NULL) {
2566                 fprintf(stderr,
2567                     "error: setspawn: cannot find program %s", prog->name);
2568                 free(prog);
2569                 return;
2570         }
2571
2572         /* not found: add */
2573         if (spawns_size == 0 || spawns == NULL) {
2574                 spawns_size = 4;
2575                 DNPRINTF(SWM_D_SPAWN, "setspawn: init list %d\n", spawns_size);
2576                 spawns = malloc((size_t)spawns_size *
2577                     sizeof(struct spawn_prog));
2578                 if (spawns == NULL) {
2579                         fprintf(stderr, "setspawn: malloc failed\n");
2580                         perror(" failed");
2581                         quit(NULL, NULL);
2582                 }
2583         } else if (spawns_length == spawns_size) {
2584                 spawns_size *= 2;
2585                 DNPRINTF(SWM_D_SPAWN, "setspawn: grow list %d\n", spawns_size);
2586                 spawns = realloc(spawns, (size_t)spawns_size *
2587                     sizeof(struct spawn_prog));
2588                 if (spawns == NULL) {
2589                         fprintf(stderr, "setspawn: realloc failed\n");
2590                         perror(" failed");
2591                         quit(NULL, NULL);
2592                 }
2593         }
2594
2595         if (spawns_length < spawns_size) {
2596                 DNPRINTF(SWM_D_SPAWN, "setspawn: add #%d %s\n",
2597                     spawns_length, prog->name);
2598                 i = spawns_length++;
2599                 spawns[i] = *prog;
2600         } else {
2601                 fprintf(stderr, "spawns array problem?\n");
2602                 if (spawns == NULL) {
2603                         fprintf(stderr, "spawns array is NULL!\n");
2604                         quit(NULL, NULL);
2605                 }
2606         }
2607         free(prog);
2608 }
2609
2610 int
2611 setconfspawn(char *selector, char *value, int flags)
2612 {
2613         struct spawn_prog       *prog;
2614         char                    *vp, *cp, *word;
2615
2616         DNPRINTF(SWM_D_SPAWN, "setconfspawn: [%s] [%s]\n", selector, value);
2617         if ((prog = calloc(1, sizeof *prog)) == NULL)
2618                 err(1, "setconfspawn: calloc prog");
2619         prog->name = strdup(selector);
2620         if (prog->name == NULL)
2621                 err(1, "setconfspawn prog->name");
2622         if ((cp = vp = strdup(value)) == NULL)
2623                 err(1, "setconfspawn: strdup(value) ");
2624         while ((word = strsep(&cp, " \t")) != NULL) {
2625                 DNPRINTF(SWM_D_SPAWN, "setconfspawn: arg [%s]\n", word);
2626                 if (cp)
2627                         cp += (long)strspn(cp, " \t");
2628                 if (strlen(word) > 0) {
2629                         prog->argc++;
2630                         prog->argv = realloc(prog->argv,
2631                             prog->argc * sizeof(char *));
2632                         if ((prog->argv[prog->argc - 1] = strdup(word)) == NULL)
2633                                 err(1, "setconfspawn: strdup");
2634                 }
2635         }
2636         free(vp);
2637
2638         setspawn(prog);
2639
2640         DNPRINTF(SWM_D_SPAWN, "setconfspawn: done\n");
2641         return (0);
2642 }
2643
2644 void
2645 setup_spawn(void)
2646 {
2647         setconfspawn("term",            "xterm",                0);
2648         setconfspawn("screenshot_all",  "screenshot.sh full",   0);
2649         setconfspawn("screenshot_wind", "screenshot.sh window", 0);
2650         setconfspawn("lock",            "xlock",                0);
2651         setconfspawn("initscr",         "initscreen.sh",        0);
2652         setconfspawn("menu",            "dmenu_run"
2653                                         " -fn $bar_font"
2654                                         " -nb $bar_color"
2655                                         " -nf $bar_font_color"
2656                                         " -sb $bar_border"
2657                                         " -sf $bar_color",      0);
2658 }
2659
2660 /* key bindings */
2661 #define SWM_MODNAME_SIZE        32
2662 #define SWM_KEY_WS              "\n+ \t"
2663 int
2664 parsekeys(char *keystr, unsigned int currmod, unsigned int *mod, KeySym *ks)
2665 {
2666         char                    *cp, *name;
2667         KeySym                  uks;
2668         DNPRINTF(SWM_D_KEY, "parsekeys: enter [%s]\n", keystr);
2669         if (mod == NULL || ks == NULL) {
2670                 DNPRINTF(SWM_D_KEY, "parsekeys: no mod or key vars\n");
2671                 return (1);
2672         }
2673         if (keystr == NULL || strlen(keystr) == 0) {
2674                 DNPRINTF(SWM_D_KEY, "parsekeys: no keystr\n");
2675                 return (1);
2676         }
2677         cp = keystr;
2678         *ks = NoSymbol;
2679         *mod = 0;
2680         while ((name = strsep(&cp, SWM_KEY_WS)) != NULL) {
2681                 DNPRINTF(SWM_D_KEY, "parsekeys: key [%s]\n", name);
2682                 if (cp)
2683                         cp += (long)strspn(cp, SWM_KEY_WS);
2684                 if (strncasecmp(name, "MOD", SWM_MODNAME_SIZE) == 0)
2685                         *mod |= currmod;
2686                 else if (!strncasecmp(name, "Mod1", SWM_MODNAME_SIZE))
2687                         *mod |= Mod1Mask;
2688                 else if (!strncasecmp(name, "Mod2", SWM_MODNAME_SIZE))
2689                         *mod += Mod2Mask;
2690                 else if (!strncmp(name, "Mod3", SWM_MODNAME_SIZE))
2691                         *mod |= Mod3Mask;
2692                 else if (!strncmp(name, "Mod4", SWM_MODNAME_SIZE))
2693                         *mod |= Mod4Mask;
2694                 else if (strncasecmp(name, "SHIFT", SWM_MODNAME_SIZE) == 0)
2695                         *mod |= ShiftMask;
2696                 else if (strncasecmp(name, "CONTROL", SWM_MODNAME_SIZE) == 0)
2697                         *mod |= ControlMask;
2698                 else {
2699                         *ks = XStringToKeysym(name);
2700                         XConvertCase(*ks, ks, &uks);
2701                         if (ks == NoSymbol) {
2702                                 DNPRINTF(SWM_D_KEY,
2703                                     "parsekeys: invalid key %s\n",
2704                                     name);
2705                                 return (1);
2706                         }
2707                 }
2708         }
2709         DNPRINTF(SWM_D_KEY, "parsekeys: leave ok\n");
2710         return (0);
2711 }
2712
2713 char *
2714 strdupsafe(char *str)
2715 {
2716         if (str == NULL)
2717                 return (NULL);
2718         else
2719                 return (strdup(str));
2720 }
2721
2722 void
2723 setkeybinding(unsigned int mod, KeySym ks, enum keyfuncid kfid, char *spawn_name)
2724 {
2725         int                     i, j;
2726         DNPRINTF(SWM_D_KEY, "setkeybinding: enter %s [%s]\n",
2727             keyfuncs[kfid].name, spawn_name);
2728         /* find existing */
2729         for (i = 0; i < keys_length; i++) {
2730                 if (keys[i].mod == mod && keys[i].keysym == ks) {
2731                         if (kfid == kf_invalid) {
2732                                 /* found: delete */
2733                                 DNPRINTF(SWM_D_KEY,
2734                                     "setkeybinding: delete #%d %s\n",
2735                                     i, keyfuncs[keys[i].funcid].name);
2736                                 free(keys[i].spawn_name);
2737                                 j = keys_length - 1;
2738                                 if (i < j)
2739                                         keys[i] = keys[j];
2740                                 keys_length--;
2741                                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2742                                 return;
2743                         } else {
2744                                 /* found: replace */
2745                                 DNPRINTF(SWM_D_KEY,
2746                                     "setkeybinding: replace #%d %s %s\n",
2747                                     i, keyfuncs[keys[i].funcid].name,
2748                                     spawn_name);
2749                                 free(keys[i].spawn_name);
2750                                 keys[i].mod = mod;
2751                                 keys[i].keysym = ks;
2752                                 keys[i].funcid = kfid;
2753                                 keys[i].spawn_name = strdupsafe(spawn_name);
2754                                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2755                                 return;
2756                         }
2757                 }
2758         }
2759         if (kfid == kf_invalid) {
2760                 fprintf(stderr,
2761                     "error: setkeybinding: cannot find mod/key combination");
2762                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2763                 return;
2764         }
2765         /* not found: add */
2766         if (keys_size == 0 || keys == NULL) {
2767                 keys_size = 4;
2768                 DNPRINTF(SWM_D_KEY, "setkeybinding: init list %d\n", keys_size);
2769                 keys = malloc((size_t)keys_size * sizeof(struct key));
2770                 if (!keys) {
2771                         fprintf(stderr, "malloc failed\n");
2772                         perror(" failed");
2773                         quit(NULL, NULL);
2774                 }
2775         } else if (keys_length == keys_size) {
2776                 keys_size *= 2;
2777                 DNPRINTF(SWM_D_KEY, "setkeybinding: grow list %d\n", keys_size);
2778                 keys = realloc(keys, (size_t)keys_size * sizeof(struct key));
2779                 if (!keys) {
2780                         fprintf(stderr, "realloc failed\n");
2781                         perror(" failed");
2782                         quit(NULL, NULL);
2783                 }
2784         }
2785         if (keys_length < keys_size) {
2786                 j = keys_length++;
2787                 DNPRINTF(SWM_D_KEY, "setkeybinding: add #%d %s %s\n",
2788                     j, keyfuncs[kfid].name, spawn_name);
2789                 keys[j].mod = mod;
2790                 keys[j].keysym = ks;
2791                 keys[j].funcid = kfid;
2792                 keys[j].spawn_name = strdupsafe(spawn_name);
2793         } else {
2794                 fprintf(stderr, "keys array problem?\n");
2795                 if (!keys) {
2796                         fprintf(stderr, "keys array problem\n");
2797                         quit(NULL, NULL);
2798                 }
2799         }
2800         DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2801 }
2802
2803 int
2804 setconfbinding(char *selector, char *value, int flags)
2805 {
2806         enum keyfuncid          kfid;
2807         unsigned int            mod;
2808         KeySym                  ks;
2809         int                     i;
2810         DNPRINTF(SWM_D_KEY, "setconfbinding: enter\n");
2811         if (selector == NULL) {
2812                 DNPRINTF(SWM_D_KEY, "setconfbinding: unbind %s\n", value);
2813                 if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2814                         kfid = kf_invalid;
2815                         setkeybinding(mod, ks, kfid, NULL);
2816                         return (0);
2817                 } else
2818                         return (1);
2819         }
2820         /* search by key function name */
2821         for (kfid = 0; kfid < kf_invalid; (kfid)++) {
2822                 if (strncasecmp(selector, keyfuncs[kfid].name,
2823                     SWM_FUNCNAME_LEN) == 0) {
2824                         DNPRINTF(SWM_D_KEY, "setconfbinding: %s: match\n",
2825                             selector);
2826                         if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2827                                 setkeybinding(mod, ks, kfid, NULL);
2828                                 return (0);
2829                         } else
2830                                 return (1);
2831                 }
2832         }
2833         /* search by custom spawn name */
2834         for (i = 0; i < spawns_length; i++) {
2835                 if (strcasecmp(selector, spawns[i].name) == 0) {
2836                         DNPRINTF(SWM_D_KEY, "setconfbinding: %s: match\n",
2837                             selector);
2838                         if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2839                                 setkeybinding(mod, ks, kf_spawn_custom,
2840                                     spawns[i].name);
2841                                 return (0);
2842                         } else
2843                                 return (1);
2844                 }
2845         }
2846         DNPRINTF(SWM_D_KEY, "setconfbinding: no match\n");
2847         return (1);
2848 }
2849
2850 void
2851 setup_keys(void)
2852 {
2853         setkeybinding(MODKEY,           XK_space,       kf_cycle_layout,NULL);
2854         setkeybinding(MODKEY|ShiftMask, XK_space,       kf_stack_reset, NULL);
2855         setkeybinding(MODKEY,           XK_h,           kf_master_shrink,NULL);
2856         setkeybinding(MODKEY,           XK_l,           kf_master_grow, NULL);
2857         setkeybinding(MODKEY,           XK_comma,       kf_master_add,  NULL);
2858         setkeybinding(MODKEY,           XK_period,      kf_master_del,  NULL);
2859         setkeybinding(MODKEY|ShiftMask, XK_comma,       kf_stack_inc,   NULL);
2860         setkeybinding(MODKEY|ShiftMask, XK_period,      kf_stack_dec,   NULL);
2861         setkeybinding(MODKEY,           XK_Return,      kf_swap_main,   NULL);
2862         setkeybinding(MODKEY,           XK_j,           kf_focus_next,  NULL);
2863         setkeybinding(MODKEY,           XK_k,           kf_focus_prev,  NULL);
2864         setkeybinding(MODKEY|ShiftMask, XK_j,           kf_swap_next,   NULL);
2865         setkeybinding(MODKEY|ShiftMask, XK_k,           kf_swap_prev,   NULL);
2866         setkeybinding(MODKEY|ShiftMask, XK_Return,      kf_spawn_term,  NULL);
2867         setkeybinding(MODKEY,           XK_p,           kf_spawn_custom,        "menu");
2868         setkeybinding(MODKEY|ShiftMask, XK_q,           kf_quit,        NULL);
2869         setkeybinding(MODKEY,           XK_q,           kf_restart,     NULL);
2870         setkeybinding(MODKEY,           XK_m,           kf_focus_main,  NULL);
2871         setkeybinding(MODKEY,           XK_1,           kf_ws_1,        NULL);
2872         setkeybinding(MODKEY,           XK_2,           kf_ws_2,        NULL);
2873         setkeybinding(MODKEY,           XK_3,           kf_ws_3,        NULL);
2874         setkeybinding(MODKEY,           XK_4,           kf_ws_4,        NULL);
2875         setkeybinding(MODKEY,           XK_5,           kf_ws_5,        NULL);
2876         setkeybinding(MODKEY,           XK_6,           kf_ws_6,        NULL);
2877         setkeybinding(MODKEY,           XK_7,           kf_ws_7,        NULL);
2878         setkeybinding(MODKEY,           XK_8,           kf_ws_8,        NULL);
2879         setkeybinding(MODKEY,           XK_9,           kf_ws_9,        NULL);
2880         setkeybinding(MODKEY,           XK_0,           kf_ws_10,       NULL);
2881         setkeybinding(MODKEY,           XK_Right,       kf_ws_next,     NULL);
2882         setkeybinding(MODKEY,           XK_Left,        kf_ws_prev,     NULL);
2883         setkeybinding(MODKEY|ShiftMask, XK_Right,       kf_screen_next, NULL);
2884         setkeybinding(MODKEY|ShiftMask, XK_Left,        kf_screen_prev, NULL);
2885         setkeybinding(MODKEY|ShiftMask, XK_1,           kf_mvws_1,      NULL);
2886         setkeybinding(MODKEY|ShiftMask, XK_2,           kf_mvws_2,      NULL);
2887         setkeybinding(MODKEY|ShiftMask, XK_3,           kf_mvws_3,      NULL);
2888         setkeybinding(MODKEY|ShiftMask, XK_4,           kf_mvws_4,      NULL);
2889         setkeybinding(MODKEY|ShiftMask, XK_5,           kf_mvws_5,      NULL);
2890         setkeybinding(MODKEY|ShiftMask, XK_6,           kf_mvws_6,      NULL);
2891         setkeybinding(MODKEY|ShiftMask, XK_7,           kf_mvws_7,      NULL);
2892         setkeybinding(MODKEY|ShiftMask, XK_8,           kf_mvws_8,      NULL);
2893         setkeybinding(MODKEY|ShiftMask, XK_9,           kf_mvws_9,      NULL);
2894         setkeybinding(MODKEY|ShiftMask, XK_0,           kf_mvws_10,     NULL);
2895         setkeybinding(MODKEY,           XK_b,           kf_bar_toggle,  NULL);
2896         setkeybinding(MODKEY,           XK_Tab,         kf_focus_next,  NULL);
2897         setkeybinding(MODKEY|ShiftMask, XK_Tab,         kf_focus_prev,  NULL);
2898         setkeybinding(MODKEY|ShiftMask, XK_x,           kf_wind_kill,   NULL);
2899         setkeybinding(MODKEY,           XK_x,           kf_wind_del,    NULL);
2900         setkeybinding(MODKEY,           XK_s,           kf_spawn_custom,        "screenshot_all");
2901         setkeybinding(MODKEY|ShiftMask, XK_s,           kf_spawn_custom,        "screenshot_wind");
2902         setkeybinding(MODKEY,           XK_t,           kf_float_toggle,NULL);
2903         setkeybinding(MODKEY|ShiftMask, XK_v,           kf_version,     NULL);
2904         setkeybinding(MODKEY|ShiftMask, XK_Delete,      kf_spawn_custom,        "lock");
2905         setkeybinding(MODKEY|ShiftMask, XK_i,           kf_spawn_custom,        "initscr");
2906 }
2907
2908 void
2909 updatenumlockmask(void)
2910 {
2911         unsigned int            i, j;
2912         XModifierKeymap         *modmap;
2913
2914         DNPRINTF(SWM_D_MISC, "updatenumlockmask\n");
2915         numlockmask = 0;
2916         modmap = XGetModifierMapping(display);
2917         for (i = 0; i < 8; i++)
2918                 for (j = 0; j < modmap->max_keypermod; j++)
2919                         if (modmap->modifiermap[i * modmap->max_keypermod + j]
2920                           == XKeysymToKeycode(display, XK_Num_Lock))
2921                                 numlockmask = (1 << i);
2922
2923         XFreeModifiermap(modmap);
2924 }
2925
2926 void
2927 grabkeys(void)
2928 {
2929         unsigned int            i, j, k;
2930         KeyCode                 code;
2931         unsigned int            modifiers[] =
2932             { 0, LockMask, numlockmask, numlockmask | LockMask };
2933
2934         DNPRINTF(SWM_D_MISC, "grabkeys\n");
2935         updatenumlockmask();
2936
2937         for (k = 0; k < ScreenCount(display); k++) {
2938                 if (TAILQ_EMPTY(&screens[k].rl))
2939                         continue;
2940                 XUngrabKey(display, AnyKey, AnyModifier, screens[k].root);
2941                 for (i = 0; i < keys_length; i++) {
2942                         if ((code = XKeysymToKeycode(display, keys[i].keysym)))
2943                                 for (j = 0; j < LENGTH(modifiers); j++)
2944                                         XGrabKey(display, code,
2945                                             keys[i].mod | modifiers[j],
2946                                             screens[k].root, True,
2947                                             GrabModeAsync, GrabModeAsync);
2948                 }
2949         }
2950 }
2951
2952 void
2953 grabbuttons(struct ws_win *win, int focused)
2954 {
2955         unsigned int            i, j;
2956         unsigned int            modifiers[] =
2957             { 0, LockMask, numlockmask, numlockmask|LockMask };
2958
2959         updatenumlockmask();
2960         XUngrabButton(display, AnyButton, AnyModifier, win->id);
2961         if(focused) {
2962                 for (i = 0; i < LENGTH(buttons); i++)
2963                         if (buttons[i].action == client_click)
2964                                 for (j = 0; j < LENGTH(modifiers); j++)
2965                                         XGrabButton(display, buttons[i].button,
2966                                             buttons[i].mask | modifiers[j],
2967                                             win->id, False, BUTTONMASK,
2968                                             GrabModeAsync, GrabModeSync, None,
2969                                             None);
2970         } else
2971                 XGrabButton(display, AnyButton, AnyModifier, win->id, False,
2972                     BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
2973 }
2974
2975 const char *quirkname[] = {
2976         "NONE",         /* config string for "no value" */
2977         "FLOAT",
2978         "TRANSSZ",
2979         "ANYWHERE",
2980         "XTERM_FONTADJ",
2981         "FULLSCREEN",
2982 };
2983
2984 /* SWM_Q_WS: retain '|' for back compat for now (2009-08-11) */
2985 #define SWM_Q_WS                "\n|+ \t"
2986 int
2987 parsequirks(char *qstr, unsigned long *quirk)
2988 {
2989         char                    *cp, *name;
2990         int                     i;
2991
2992         if (quirk == NULL)
2993                 return (1);
2994
2995         cp = qstr;
2996         *quirk = 0;
2997         while ((name = strsep(&cp, SWM_Q_WS)) != NULL) {
2998                 if (cp)
2999                         cp += (long)strspn(cp, SWM_Q_WS);
3000                 for (i = 0; i < LENGTH(quirkname); i++) {
3001                         if (!strncasecmp(name, quirkname[i], SWM_QUIRK_LEN)) {
3002                                 DNPRINTF(SWM_D_QUIRK, "parsequirks: %s\n", name);
3003                                 if (i == 0) {
3004                                         *quirk = 0;
3005                                         return (0);
3006                                 }
3007                                 *quirk |= 1 << (i-1);
3008                                 break;
3009                         }
3010                 }
3011                 if (i >= LENGTH(quirkname)) {
3012                         DNPRINTF(SWM_D_QUIRK,
3013                             "parsequirks: invalid quirk [%s]\n", name);
3014                         return (1);
3015                 }
3016         }
3017         return (0);
3018 }
3019
3020 void
3021 setquirk(const char *class, const char *name, const int quirk)
3022 {
3023         int                     i, j;
3024
3025         /* find existing */
3026         for (i = 0; i < quirks_length; i++) {
3027                 if (!strcmp(quirks[i].class, class) &&
3028                     !strcmp(quirks[i].name, name)) {
3029                         if (!quirk) {
3030                                 /* found: delete */
3031                                 DNPRINTF(SWM_D_QUIRK,
3032                                     "setquirk: delete #%d %s:%s\n",
3033                                     i, quirks[i].class, quirks[i].name);
3034                                 free(quirks[i].class);
3035                                 free(quirks[i].name);
3036                                 j = quirks_length - 1;
3037                                 if (i < j)
3038                                         quirks[i] = quirks[j];
3039                                 quirks_length--;
3040                                 return;
3041                         } else {
3042                                 /* found: replace */
3043                                 DNPRINTF(SWM_D_QUIRK,
3044                                     "setquirk: replace #%d %s:%s\n",
3045                                     i, quirks[i].class, quirks[i].name);
3046                                 free(quirks[i].class);
3047                                 free(quirks[i].name);
3048                                 quirks[i].class = strdup(class);
3049                                 quirks[i].name = strdup(name);
3050                                 quirks[i].quirk = quirk;
3051                                 return;
3052                         }
3053                 }
3054         }
3055         if (!quirk) {
3056                 fprintf(stderr,
3057                     "error: setquirk: cannot find class/name combination");
3058                 return;
3059         }
3060         /* not found: add */
3061         if (quirks_size == 0 || quirks == NULL) {
3062                 quirks_size = 4;
3063                 DNPRINTF(SWM_D_QUIRK, "setquirk: init list %d\n", quirks_size);
3064                 quirks = malloc((size_t)quirks_size * sizeof(struct quirk));
3065                 if (!quirks) {
3066                         fprintf(stderr, "setquirk: malloc failed\n");
3067                         perror(" failed");
3068                         quit(NULL, NULL);
3069                 }
3070         } else if (quirks_length == quirks_size) {
3071                 quirks_size *= 2;
3072                 DNPRINTF(SWM_D_QUIRK, "setquirk: grow list %d\n", quirks_size);
3073                 quirks = realloc(quirks, (size_t)quirks_size * sizeof(struct quirk));
3074                 if (!quirks) {
3075                         fprintf(stderr, "setquirk: realloc failed\n");
3076                         perror(" failed");
3077                         quit(NULL, NULL);
3078                 }
3079         }
3080         if (quirks_length < quirks_size) {
3081                 DNPRINTF(SWM_D_QUIRK, "setquirk: add %d\n", quirks_length);
3082                 j = quirks_length++;
3083                 quirks[j].class = strdup(class);
3084                 quirks[j].name = strdup(name);
3085                 quirks[j].quirk = quirk;
3086         } else {
3087                 fprintf(stderr, "quirks array problem?\n");
3088                 if (!quirks) {
3089                         fprintf(stderr, "quirks array problem!\n");
3090                         quit(NULL, NULL);
3091                 }
3092         }
3093 }
3094
3095 int
3096 setconfquirk(char *selector, char *value, int flags)
3097 {
3098         char                    *cp, *class, *name;
3099         int                     retval;
3100         unsigned long           quirks;
3101         if (selector == NULL)
3102                 return (0);
3103         if ((cp = strchr(selector, ':')) == NULL)
3104                 return (0);
3105         *cp = '\0';
3106         class = selector;
3107         name = cp + 1;
3108         if ((retval = parsequirks(value, &quirks)) == 0)
3109                 setquirk(class, name, quirks);
3110         return (retval);
3111 }
3112
3113 void
3114 setup_quirks(void)
3115 {
3116         setquirk("MPlayer",             "xv",           SWM_Q_FLOAT | SWM_Q_FULLSCREEN);
3117         setquirk("OpenOffice.org 2.4",  "VCLSalFrame",  SWM_Q_FLOAT);
3118         setquirk("OpenOffice.org 3.0",  "VCLSalFrame",  SWM_Q_FLOAT);
3119         setquirk("Firefox-bin",         "firefox-bin",  SWM_Q_TRANSSZ);
3120         setquirk("Firefox",             "Dialog",       SWM_Q_FLOAT);
3121         setquirk("Gimp",                "gimp",         SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3122         setquirk("XTerm",               "xterm",        SWM_Q_XTERM_FONTADJ);
3123         setquirk("xine",                "Xine Window",  SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3124         setquirk("Xitk",                "Xitk Combo",   SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3125         setquirk("xine",                "xine Panel",   SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3126         setquirk("Xitk",                "Xine Window",  SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3127         setquirk("xine",                "xine Video Fullscreen Window", SWM_Q_FULLSCREEN | SWM_Q_FLOAT);
3128         setquirk("pcb",                 "pcb",          SWM_Q_FLOAT);
3129 }
3130
3131 /* conf file stuff */
3132 #define SWM_CONF_FILE   "scrotwm.conf"
3133
3134 enum    { SWM_S_BAR_DELAY, SWM_S_BAR_ENABLED, SWM_S_STACK_ENABLED,
3135           SWM_S_CLOCK_ENABLED, SWM_S_CYCLE_EMPTY, SWM_S_CYCLE_VISIBLE,
3136           SWM_S_SS_ENABLED, SWM_S_TERM_WIDTH, SWM_S_TITLE_CLASS_ENABLED,
3137           SWM_S_TITLE_NAME_ENABLED, SWM_S_BAR_FONT, SWM_S_BAR_ACTION,
3138           SWM_S_SPAWN_TERM, SWM_S_SS_APP, SWM_S_DIALOG_RATIO };
3139
3140 int
3141 setconfvalue(char *selector, char *value, int flags)
3142 {
3143         switch (flags) {
3144         case SWM_S_BAR_DELAY:
3145                 bar_delay = atoi(value);
3146                 break;
3147         case SWM_S_BAR_ENABLED:
3148                 bar_enabled = atoi(value);
3149                 break;
3150         case SWM_S_STACK_ENABLED:
3151                 stack_enabled = atoi(value);
3152                 break;
3153         case SWM_S_CLOCK_ENABLED:
3154                 clock_enabled = atoi(value);
3155                 break;
3156         case SWM_S_CYCLE_EMPTY:
3157                 cycle_empty = atoi(value);
3158                 break;
3159         case SWM_S_CYCLE_VISIBLE:
3160                 cycle_visible = atoi(value);
3161                 break;
3162         case SWM_S_SS_ENABLED:
3163                 ss_enabled = atoi(value);
3164                 break;
3165         case SWM_S_TERM_WIDTH:
3166                 term_width = atoi(value);
3167                 break;
3168         case SWM_S_TITLE_CLASS_ENABLED:
3169                 title_class_enabled = atoi(value);
3170                 break;
3171         case SWM_S_TITLE_NAME_ENABLED:
3172                 title_name_enabled = atoi(value);
3173                 break;
3174         case SWM_S_BAR_FONT:
3175                 free(bar_fonts[0]);
3176                 if ((bar_fonts[0] = strdup(value)) == NULL)
3177                         err(1, "setconfvalue: bar_font");
3178                 break;
3179         case SWM_S_BAR_ACTION:
3180                 free(bar_argv[0]);
3181                 if ((bar_argv[0] = strdup(value)) == NULL)
3182                         err(1, "setconfvalue: bar_action");
3183                 break;
3184         case SWM_S_SPAWN_TERM:
3185                 free(spawn_term[0]);
3186                 if ((spawn_term[0] = strdup(value)) == NULL)
3187                         err(1, "setconfvalue: spawn_term");
3188                 break;
3189         case SWM_S_SS_APP:
3190                 break;
3191         case SWM_S_DIALOG_RATIO:
3192                 dialog_ratio = atof(value);
3193                 if (dialog_ratio > 1.0 || dialog_ratio <= .3)
3194                         dialog_ratio = .6;
3195                 break;
3196         default:
3197                 return (1);
3198         }
3199         return (0);
3200 }
3201
3202 int
3203 setconfmodkey(char *selector, char *value, int flags)
3204 {
3205         if (!strncasecmp(value, "Mod1", strlen("Mod1")))
3206                 update_modkey(Mod1Mask);
3207         else if (!strncasecmp(value, "Mod2", strlen("Mod2")))
3208                 update_modkey(Mod2Mask);
3209         else if (!strncasecmp(value, "Mod3", strlen("Mod3")))
3210                 update_modkey(Mod3Mask);
3211         else if (!strncasecmp(value, "Mod4", strlen("Mod4")))
3212                 update_modkey(Mod4Mask);
3213         else
3214                 return (1);
3215         return (0);
3216 }
3217
3218 int
3219 setconfcolor(char *selector, char *value, int flags)
3220 {
3221         setscreencolor(value, ((selector == NULL)?-1:atoi(selector)), flags);
3222         return (0);
3223 }
3224
3225 int
3226 setconfregion(char *selector, char *value, int flags)
3227 {
3228         custom_region(value);
3229         return (0);
3230 }
3231
3232 /* config options */
3233 struct config_option {
3234         char                    *optname;
3235         int (*func)(char*, char*, int);
3236         int funcflags;
3237 };
3238 struct config_option configopt[] = {
3239         { "bar_enabled",                setconfvalue,   SWM_S_BAR_ENABLED },
3240         { "bar_border",                 setconfcolor,   SWM_S_COLOR_BAR_BORDER },
3241         { "bar_color",                  setconfcolor,   SWM_S_COLOR_BAR },
3242         { "bar_font_color",             setconfcolor,   SWM_S_COLOR_BAR_FONT },
3243         { "bar_font",                   setconfvalue,   SWM_S_BAR_FONT },
3244         { "bar_action",                 setconfvalue,   SWM_S_BAR_ACTION },
3245         { "bar_delay",                  setconfvalue,   SWM_S_BAR_DELAY },
3246         { "bind",                       setconfbinding, 0 },
3247         { "stack_enabled",              setconfvalue,   SWM_S_STACK_ENABLED },
3248         { "clock_enabled",              setconfvalue,   SWM_S_CLOCK_ENABLED },
3249         { "color_focus",                setconfcolor,   SWM_S_COLOR_FOCUS },
3250         { "color_unfocus",              setconfcolor,   SWM_S_COLOR_UNFOCUS },
3251         { "cycle_empty",                setconfvalue,   SWM_S_CYCLE_EMPTY },
3252         { "cycle_visible",              setconfvalue,   SWM_S_CYCLE_VISIBLE },
3253         { "dialog_ratio",               setconfvalue,   SWM_S_DIALOG_RATIO },
3254         { "modkey",                     setconfmodkey,  0 },
3255         { "program",                    setconfspawn,   0 },
3256         { "quirk",                      setconfquirk,   0 },
3257         { "region",                     setconfregion,  0 },
3258         { "spawn_term",                 setconfvalue,   SWM_S_SPAWN_TERM },
3259         { "screenshot_enabled",         setconfvalue,   SWM_S_SS_ENABLED },
3260         { "screenshot_app",             setconfvalue,   SWM_S_SS_APP },
3261         { "term_width",                 setconfvalue,   SWM_S_TERM_WIDTH },
3262         { "title_class_enabled",        setconfvalue,   SWM_S_TITLE_CLASS_ENABLED },
3263         { "title_name_enabled",         setconfvalue,   SWM_S_TITLE_NAME_ENABLED }
3264 };
3265
3266
3267 int
3268 conf_load(char *filename)
3269 {
3270         FILE                    *config;
3271         char                    *line, *cp, *optsub, *optval;
3272         size_t                  linelen, lineno = 0;
3273         int                     wordlen, i, optind;
3274         struct config_option    *opt;
3275
3276         DNPRINTF(SWM_D_CONF, "conf_load begin\n");
3277
3278         if (filename == NULL) {
3279                 fprintf(stderr, "conf_load: no filename\n");
3280                 return (1);
3281         }
3282         if ((config = fopen(filename, "r")) == NULL) {
3283                 warn("conf_load: fopen");
3284                 return (1);
3285         }
3286
3287         while (!feof(config)) {
3288                 if ((line = fparseln(config, &linelen, &lineno, NULL, 0))
3289                     == NULL) {
3290                         if (ferror(config))
3291                                 err(1, "%s", filename);
3292                         else
3293                                 continue;
3294                 }
3295                 cp = line;
3296                 cp += strspn(cp, " \t\n"); /* eat whitespace */
3297                 if (cp[0] == '\0') {
3298                         /* empty line */
3299                         free(line);
3300                         continue;
3301                 }
3302                 /* get config option */
3303                 wordlen = strcspn(cp, "=[ \t\n");
3304                 if (wordlen == 0) {
3305                         warnx("%s: line %zd: no option found",
3306                             filename, lineno);
3307                         return (1);
3308                 }
3309                 optind = -1;
3310                 for (i = 0; i < LENGTH(configopt); i++) {
3311                         opt = &configopt[i];
3312                         if (!strncasecmp(cp, opt->optname, wordlen) &&
3313                             strlen(opt->optname) == wordlen) {
3314                                 optind = i;
3315                                 break;
3316                         }
3317                 }
3318                 if (optind == -1) {
3319                         warnx("%s: line %zd: unknown option %.*s",
3320                             filename, lineno, wordlen, cp);
3321                         return (1);
3322                 }
3323                 cp += wordlen;
3324                 cp += strspn(cp, " \t\n"); /* eat whitespace */
3325                 /* get [selector] if any */
3326                 optsub = NULL;
3327                 if (*cp == '[') {
3328                         cp++;
3329                         wordlen = strcspn(cp, "]");
3330                         if (*cp != ']') {
3331                                 if (wordlen == 0) {
3332                                         warnx("%s: line %zd: syntax error",
3333                                             filename, lineno);
3334                                         return (1);
3335                                 }
3336                                 asprintf(&optsub, "%.*s", wordlen, cp);
3337                         }
3338                         cp += wordlen;
3339                         cp += strspn(cp, "] \t\n"); /* eat trailing */
3340                 }
3341                 cp += strspn(cp, "= \t\n"); /* eat trailing */
3342                 /* get RHS value */
3343                 optval = strdup(cp);
3344                 /* call function to deal with it all */
3345                 if (configopt[optind].func(optsub, optval,
3346                     configopt[optind].funcflags) != 0) {
3347                         fprintf(stderr, "%s line %zd: %s\n",
3348                             filename, lineno, line);
3349                         errx(1, "%s: line %zd: invalid data for %s",
3350                             filename, lineno, configopt[optind].optname);
3351                 }
3352                 free(optval);
3353                 free(optsub);
3354                 free(line);
3355         }
3356
3357         fclose(config);
3358         DNPRINTF(SWM_D_CONF, "conf_load end\n");
3359
3360         return (0);
3361 }
3362
3363 struct ws_win *
3364 manage_window(Window id)
3365 {
3366         Window                  trans = 0;
3367         struct workspace        *ws;
3368         struct ws_win           *win, *ww, *parent;
3369         int                     format, i, ws_idx, n, border_me = 0;
3370         unsigned long           nitems, bytes;
3371         Atom                    ws_idx_atom = 0, type;
3372         Atom                    *prot = NULL, *pp;
3373         unsigned char           ws_idx_str[SWM_PROPLEN], *prop = NULL;
3374         struct swm_region       *r;
3375         long                    mask;
3376         const char              *errstr;
3377         XWindowChanges          wc;
3378
3379         if ((win = find_window(id)) != NULL)
3380                         return (win);   /* already being managed */
3381
3382         if ((win = calloc(1, sizeof(struct ws_win))) == NULL)
3383                 errx(1, "calloc: failed to allocate memory for new window");
3384
3385         /* Get all the window data in one shot */
3386         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
3387         if (ws_idx_atom)
3388                 XGetWindowProperty(display, id, ws_idx_atom, 0, SWM_PROPLEN,
3389                     False, XA_STRING, &type, &format, &nitems, &bytes, &prop);
3390         XGetWindowAttributes(display, id, &win->wa);
3391         XGetWMNormalHints(display, id, &win->sh, &mask);
3392         XGetTransientForHint(display, id, &trans);
3393         if (trans) {
3394                 win->transient = trans;
3395                 parent = find_window(win->transient);
3396                 if (parent)
3397                         parent->child_trans = win;
3398                 DNPRINTF(SWM_D_MISC, "manage_window: win %u transient %u\n",
3399                     (unsigned)win->id, win->transient);
3400         }
3401         /* get supported protocols */
3402         if (XGetWMProtocols(display, id, &prot, &n)) {
3403                 for (i = 0, pp = prot; i < n; i++, pp++) {
3404                         if (*pp == takefocus)
3405                                 win->take_focus = 1;
3406                         if (*pp == adelete)
3407                                 win->can_delete = 1;
3408                 }
3409                 if (prot)
3410                         XFree(prot);
3411         }
3412
3413         /*
3414          * Figure out where to put the window. If it was previously assigned to
3415          * a workspace (either by spawn() or manually moving), and isn't
3416          * transient, * put it in the same workspace
3417          */
3418         r = root_to_region(win->wa.root);
3419         if (prop && win->transient == 0) {
3420                 DNPRINTF(SWM_D_PROP, "got property _SWM_WS=%s\n", prop);
3421                 ws_idx = strtonum(prop, 0, 9, &errstr);
3422                 if (errstr) {
3423                         DNPRINTF(SWM_D_EVENT, "window idx is %s: %s",
3424                             errstr, prop);
3425                 }
3426                 ws = &r->s->ws[ws_idx];
3427         } else {
3428                 ws = r->ws;
3429                 /* this should launch transients in the same ws as parent */
3430                 if (id && trans)
3431                         if ((ww = find_window(trans)) != NULL)
3432                                 if (ws->r) {
3433                                         ws = ww->ws;
3434                                         if (ww->ws->r)
3435                                                 r = ww->ws->r;
3436                                         else
3437                                                 fprintf(stderr,
3438                                                     "fix this bug mcbride\n");
3439                                         border_me = 1;
3440                                 }
3441         }
3442
3443         /* set up the window layout */
3444         win->id = id;
3445         win->ws = ws;
3446         win->s = r->s;  /* this never changes */
3447         TAILQ_INSERT_TAIL(&ws->winlist, win, entry);
3448
3449         win->g.w = win->wa.width;
3450         win->g.h = win->wa.height;
3451         win->g.x = win->wa.x;
3452         win->g.y = win->wa.y;
3453
3454         /* Set window properties so we can remember this after reincarnation */
3455         if (ws_idx_atom && prop == NULL &&
3456             snprintf(ws_idx_str, SWM_PROPLEN, "%d", ws->idx) < SWM_PROPLEN) {
3457                 DNPRINTF(SWM_D_PROP, "setting property _SWM_WS to %s\n",
3458                     ws_idx_str);
3459                 XChangeProperty(display, win->id, ws_idx_atom, XA_STRING, 8,
3460                     PropModeReplace, ws_idx_str, SWM_PROPLEN);
3461         }
3462         XFree(prop);
3463
3464         if (XGetClassHint(display, win->id, &win->ch)) {
3465                 DNPRINTF(SWM_D_CLASS, "class: %s name: %s\n",
3466                     win->ch.res_class, win->ch.res_name);
3467
3468                 /* java is retarded so treat it special */
3469                 if (strstr(win->ch.res_name, "sun-awt"))
3470                         win->java = 1;
3471
3472                 for (i = 0; i < quirks_length; i++){
3473                         if (!strcmp(win->ch.res_class, quirks[i].class) &&
3474                             !strcmp(win->ch.res_name, quirks[i].name)) {
3475                                 DNPRINTF(SWM_D_CLASS, "found: %s name: %s\n",
3476                                     win->ch.res_class, win->ch.res_name);
3477                                 if (quirks[i].quirk & SWM_Q_FLOAT)
3478                                         win->floating = 1;
3479                                 win->quirks = quirks[i].quirk;
3480                         }
3481                 }
3482         }
3483
3484         /* alter window position if quirky */
3485         if (win->quirks & SWM_Q_ANYWHERE) {
3486                 win->manual = 1; /* don't center the quirky windows */
3487                 bzero(&wc, sizeof wc);
3488                 mask = 0;
3489                 if (win->g.y < bar_height) {
3490                         win->g.y = wc.y = bar_height;
3491                         mask |= CWY;
3492                 }
3493                 if (win->g.w + win->g.x > WIDTH(r)) {
3494                         win->g.x = wc.x = WIDTH(r) - win->g.w - 2;
3495                         mask |= CWX;
3496                 }
3497                 border_me = 1;
3498         }
3499
3500         /* Reset font sizes (the bruteforce way; no default keybinding). */
3501         if (win->quirks & SWM_Q_XTERM_FONTADJ) {
3502                 for (i = 0; i < SWM_MAX_FONT_STEPS; i++)
3503                         fake_keypress(win, XK_KP_Subtract, ShiftMask);
3504                 for (i = 0; i < SWM_MAX_FONT_STEPS; i++)
3505                         fake_keypress(win, XK_KP_Add, ShiftMask);
3506         }
3507
3508         /* border me */
3509         if (border_me) {
3510                 bzero(&wc, sizeof wc);
3511                 wc.border_width = 1;
3512                 mask = CWBorderWidth;
3513                 XConfigureWindow(display, win->id, mask, &wc);
3514         }
3515
3516         XSelectInput(display, id, EnterWindowMask | FocusChangeMask |
3517             PropertyChangeMask | StructureNotifyMask);
3518
3519         set_win_state(win, NormalState);
3520
3521         /* floaters need to be mapped if they are in the current workspace */
3522         if ((win->floating || win->transient) && (ws->idx == r->ws->idx))
3523                 XMapRaised(display, win->id);
3524
3525         return (win);
3526 }
3527
3528 void
3529 unmanage_window(struct ws_win *win)
3530 {
3531         struct workspace        *ws;
3532         struct ws_win           *parent;
3533
3534         if (win == NULL)
3535                 return;
3536
3537         DNPRINTF(SWM_D_MISC, "unmanage_window:  %lu\n", win->id);
3538
3539         /* needed for restart wm */
3540         set_win_state(win, WithdrawnState);
3541
3542         if (win->transient) {
3543                 parent = find_window(win->transient);
3544                 if (parent)
3545                         parent->child_trans = NULL;
3546         }
3547
3548         ws = win->ws;
3549         TAILQ_REMOVE(&win->ws->winlist, win, entry);
3550         if (win->ch.res_class)
3551                 XFree(win->ch.res_class);
3552         if (win->ch.res_name)
3553                 XFree(win->ch.res_name);
3554         free(win);
3555 }
3556
3557 void
3558 focus_magic(struct ws_win *win)
3559 {
3560         if (win->child_trans) {
3561                 /* win = parent & has a transient so focus on that */
3562                 if (win->java) {
3563                         focus_win(win->child_trans);
3564                         if (win->child_trans->take_focus)
3565                                 client_msg(win, takefocus);
3566                 } else {
3567                         focus_win(win->child_trans);
3568                         if (win->child_trans->take_focus)
3569                                 client_msg(win->child_trans, takefocus);
3570                 }
3571         } else {
3572                 /* regular focus */
3573                 focus_win(win);
3574                 if (win->take_focus)
3575                         client_msg(win, takefocus);
3576         }
3577 }
3578
3579 Bool
3580 destroy_notify_cb(Display *d, XEvent *e, char *arg)
3581 {
3582         struct ws_win           *win = (struct ws_win *)arg;
3583         if (win && win->id == e->xany.window && e->xany.type == DestroyNotify)
3584                         return (True);
3585         return (False);
3586 }
3587
3588 void
3589 expose(XEvent *e)
3590 {
3591         DNPRINTF(SWM_D_EVENT, "expose: window: %lu\n", e->xexpose.window);
3592 }
3593
3594 void
3595 keypress(XEvent *e)
3596 {
3597         unsigned int            i;
3598         KeySym                  keysym;
3599         XKeyEvent               *ev = &e->xkey;
3600
3601         DNPRINTF(SWM_D_EVENT, "keypress: window: %lu\n", ev->window);
3602
3603         keysym = XKeycodeToKeysym(display, (KeyCode)ev->keycode, 0);
3604         for (i = 0; i < keys_length; i++)
3605                 if (keysym == keys[i].keysym
3606                    && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
3607                    && keyfuncs[keys[i].funcid].func) {
3608                         if (keys[i].funcid == kf_spawn_custom)
3609                                 spawn_custom(
3610                                     root_to_region(ev->root),
3611                                     &(keyfuncs[keys[i].funcid].args),
3612                                     keys[i].spawn_name
3613                                     );
3614                         else
3615                                 keyfuncs[keys[i].funcid].func(
3616                                     root_to_region(ev->root),
3617                                     &(keyfuncs[keys[i].funcid].args)
3618                                     );
3619                 }
3620 }
3621
3622 void
3623 buttonpress(XEvent *e)
3624 {
3625         XButtonPressedEvent     *ev = &e->xbutton;
3626
3627         struct ws_win           *win;
3628         int                     i, action;
3629
3630         DNPRINTF(SWM_D_EVENT, "buttonpress: window: %lu\n", ev->window);
3631
3632         action = root_click;
3633         if ((win = find_window(ev->window)) == NULL)
3634                 return;
3635
3636         focus_magic(win);
3637         action = client_click;
3638
3639         for (i = 0; i < LENGTH(buttons); i++)
3640                 if (action == buttons[i].action && buttons[i].func &&
3641                     buttons[i].button == ev->button &&
3642                     CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
3643                         buttons[i].func(win, &buttons[i].args);
3644 }
3645
3646 void
3647 configurerequest(XEvent *e)
3648 {
3649         XConfigureRequestEvent  *ev = &e->xconfigurerequest;
3650         struct ws_win           *win;
3651         int                     new = 0;
3652         XWindowChanges          wc;
3653
3654         if ((win = find_window(ev->window)) == NULL)
3655                 new = 1;
3656
3657         if (new) {
3658                 DNPRINTF(SWM_D_EVENT, "configurerequest: new window: %lu\n",
3659                     ev->window);
3660                 bzero(&wc, sizeof wc);
3661                 wc.x = ev->x;
3662                 wc.y = ev->y;
3663                 wc.width = ev->width;
3664                 wc.height = ev->height;
3665                 wc.border_width = ev->border_width;
3666                 wc.sibling = ev->above;
3667                 wc.stack_mode = ev->detail;
3668                 XConfigureWindow(display, ev->window, ev->value_mask, &wc);
3669         } else {
3670                 DNPRINTF(SWM_D_EVENT, "configurerequest: change window: %lu\n",
3671                     ev->window);
3672                 if (win->floating) {
3673                         if (ev->value_mask & CWX)
3674                                 win->g.x = ev->x;
3675                         if (ev->value_mask & CWY)
3676                                 win->g.y = ev->y;
3677                         if (ev->value_mask & CWWidth)
3678                                 win->g.w = ev->width;
3679                         if (ev->value_mask & CWHeight)
3680                                 win->g.h = ev->height;
3681                         if (win->ws->r != NULL) {
3682                                 /* this seems to be full screen */
3683                                 if (win->g.w >= WIDTH(win->ws->r)) {
3684                                         win->g.x = 0;
3685                                         win->g.w = WIDTH(win->ws->r);
3686                                         ev->value_mask |= CWX | CWWidth;
3687                                 }
3688                                 if (win->g.h >= HEIGHT(win->ws->r)) {
3689                                         /* kill border */
3690                                         win->g.y = 0;
3691                                         win->g.h = HEIGHT(win->ws->r);
3692                                         ev->value_mask |= CWY | CWHeight;
3693                                 }
3694                         }
3695                         if ((ev->value_mask & (CWX | CWY)) &&
3696                             !(ev->value_mask & (CWWidth | CWHeight)))
3697                                 config_win(win);
3698                         XMoveResizeWindow(display, win->id,
3699                             win->g.x, win->g.y, win->g.w, win->g.h);
3700                 } else
3701                         config_win(win);
3702         }
3703 }
3704
3705 void
3706 configurenotify(XEvent *e)
3707 {
3708         struct ws_win           *win;
3709         long                    mask;
3710
3711         DNPRINTF(SWM_D_EVENT, "configurenotify: window: %lu\n",
3712             e->xconfigure.window);
3713
3714         XMapWindow(display, e->xconfigure.window);
3715         win = find_window(e->xconfigure.window);
3716         if (win) {
3717                 XGetWMNormalHints(display, win->id, &win->sh, &mask);
3718                 adjust_font(win);
3719                 XMapWindow(display, win->id);
3720                 if (font_adjusted)
3721                         stack();
3722         }
3723 }
3724
3725 void
3726 destroynotify(XEvent *e)
3727 {
3728         struct ws_win           *win, *w, *winfocus = NULL;
3729         struct workspace        *ws;
3730         struct ws_win_list      *wl;
3731         XDestroyWindowEvent     *ev = &e->xdestroywindow;
3732         XEvent                  de;
3733
3734         DNPRINTF(SWM_D_EVENT, "destroynotify: window %lu\n", ev->window);
3735
3736         if ((win = find_window(ev->window)) != NULL) {
3737                 /* find a window to focus */
3738                 ws = win->ws;
3739                 wl = &ws->winlist;
3740
3741                 /* if we are transient give focus to parent */
3742                 if (win->transient)
3743                         winfocus = find_window(win->transient);
3744                 else if (ws->focus == win) {
3745                         /* if in max_stack try harder */
3746                         if (ws->cur_layout->flags & SWM_L_FOCUSPREV) {
3747                                 if (win != ws->focus_prev)
3748                                         winfocus = ws->focus_prev;
3749                                 else if (win != ws->focus)
3750                                         winfocus = ws->focus;
3751                         }
3752
3753                         /* fallback and normal handling */
3754                         if (winfocus == NULL) {
3755                                 if (TAILQ_FIRST(wl) == win)
3756                                         winfocus = TAILQ_NEXT(win, entry);
3757                                 else {
3758                                         winfocus = TAILQ_PREV(ws->focus,
3759                                             ws_win_list, entry);
3760                                         if (winfocus == NULL)
3761                                                 winfocus = TAILQ_LAST(wl,
3762                                                     ws_win_list);
3763                                 }
3764                         }
3765                 }
3766                 unmanage_window(win);
3767
3768                 /*
3769                  * Under stress conditions windows sometimes do not get removed
3770                  * from the managed list.  Use a very large hammer to get rid
3771                  * of them.  A smaller hammer would be nice.
3772                  */
3773                 TAILQ_FOREACH(w, &ws->winlist, entry) {
3774                         if (win == w)
3775                                 continue; /* can't happen but oh well */
3776
3777                         if (getstate(w->id) != -1)
3778                                 continue;
3779
3780                         /* see if we have a destroy event */
3781                         if (XCheckIfEvent(display, &de, destroy_notify_cb,
3782                             (char *)w) == False)
3783                                 unmanage_window(w); /* no event, help it */
3784                         else
3785                                 XPutBackEvent(display, &de); /* oops */
3786                 }
3787
3788                 ignore_enter = 1;
3789                 stack();
3790                 if (winfocus)
3791                         focus_win(winfocus);
3792                 ignore_enter = 0;
3793         }
3794 }
3795
3796 void
3797 enternotify(XEvent *e)
3798 {
3799         XCrossingEvent          *ev = &e->xcrossing;
3800         struct ws_win           *win;
3801
3802         DNPRINTF(SWM_D_EVENT, "enternotify: window: %lu\n", ev->window);
3803
3804         if (ignore_enter) {
3805                 /* eat event(r) to prevent autofocus */
3806                 ignore_enter = 0;
3807                 return;
3808         }
3809         /*
3810          * happens when a window is created or destroyed and the border
3811          * crosses the mouse pointer
3812          */
3813         if (QLength(display))
3814                 return;
3815
3816         if ((win = find_window(ev->window)) == NULL)
3817                 return;
3818
3819         focus_magic(win);
3820 }
3821
3822 void
3823 focusin(XEvent *e)
3824 {
3825         DNPRINTF(SWM_D_EVENT, "focusin: window: %lu\n", e->xfocus.window);
3826 }
3827
3828 void
3829 focusout(XEvent *e)
3830 {
3831         DNPRINTF(SWM_D_EVENT, "focusout: window: %lu\n", e->xfocus.window);
3832 }
3833
3834 void
3835 mapnotify(XEvent *e)
3836 {
3837         struct ws_win           *win;
3838         XMapEvent               *ev = &e->xmap;
3839
3840         DNPRINTF(SWM_D_EVENT, "mapnotify: window: %lu\n", ev->window);
3841
3842         win = find_window(ev->window);
3843         if (win)
3844                 set_win_state(win, NormalState);
3845 }
3846
3847 void
3848 mappingnotify(XEvent *e)
3849 {
3850         XMappingEvent           *ev = &e->xmapping;
3851
3852         XRefreshKeyboardMapping(ev);
3853         if (ev->request == MappingKeyboard)
3854                 grabkeys();
3855 }
3856
3857 void
3858 maprequest(XEvent *e)
3859 {
3860         struct ws_win           *win;
3861         struct swm_region       *r;
3862
3863         XMapRequestEvent        *ev = &e->xmaprequest;
3864         XWindowAttributes       wa;
3865
3866         DNPRINTF(SWM_D_EVENT, "maprequest: window: %lu\n",
3867             e->xmaprequest.window);
3868
3869         if (!XGetWindowAttributes(display, ev->window, &wa))
3870                 return;
3871         if (wa.override_redirect)
3872                 return;
3873
3874         win = manage_window(e->xmaprequest.window);
3875         if (win == NULL)
3876                 return; /* can't happen */
3877
3878         ignore_enter = 1;
3879         stack();
3880         ignore_enter = 0;
3881
3882         /* make new win focused */
3883         r = root_to_region(win->wa.root);
3884         if (win->ws == r->ws)
3885                 focus_win(win);
3886 }
3887
3888 void
3889 propertynotify(XEvent *e)
3890 {
3891         struct ws_win           *win;
3892         XPropertyEvent          *ev = &e->xproperty;
3893
3894         DNPRINTF(SWM_D_EVENT, "propertynotify: window: %lu\n",
3895             ev->window);
3896
3897         if (ev->state == PropertyDelete)
3898                 return; /* ignore */
3899         win = find_window(ev->window);
3900         if (win == NULL)
3901                 return;
3902
3903         switch (ev->atom) {
3904         case XA_WM_NORMAL_HINTS:
3905 #if 0
3906                 long            mask;
3907                 XGetWMNormalHints(display, win->id, &win->sh, &mask);
3908                 fprintf(stderr, "normal hints: flag 0x%x\n", win->sh.flags);
3909                 if (win->sh.flags & PMinSize) {
3910                         win->g.w = win->sh.min_width;
3911                         win->g.h = win->sh.min_height;
3912                         fprintf(stderr, "min %d %d\n", win->g.w, win->g.h);
3913                 }
3914                 XMoveResizeWindow(display, win->id,
3915                     win->g.x, win->g.y, win->g.w, win->g.h);
3916 #endif
3917                 break;
3918         default:
3919                 break;
3920         }
3921 }
3922
3923 void
3924 unmapnotify(XEvent *e)
3925 {
3926         struct ws_win           *win, *winfocus = NULL;
3927         struct workspace        *ws;
3928
3929         DNPRINTF(SWM_D_EVENT, "unmapnotify: window: %lu\n", e->xunmap.window);
3930
3931         /* determine if we need to help unmanage this window */
3932         win = find_window(e->xunmap.window);
3933         if (win == NULL)
3934                 return;
3935
3936         /* java can not deal with this heuristic */
3937         if (win->java)
3938                 return;
3939
3940         if (getstate(e->xunmap.window) == NormalState) {
3941                 /*
3942                  * this window does not have a destroy event but but it is no
3943                  * longer visible due to the app unmapping it so unmanage it
3944                  */
3945                 ws = win->ws;
3946                 /* if we are max_stack try harder to focus on something */
3947                 if (ws->cur_layout->flags & SWM_L_FOCUSPREV) {
3948                         if (win->transient)
3949                                 winfocus = find_window(win->transient);
3950                         else if (win != ws->focus_prev)
3951                                 winfocus = ws->focus_prev;
3952                         else if (win != ws->focus)
3953                                 winfocus = ws->focus;
3954                 }
3955
3956                 /* normal and fallback if haven't found anything to focus on */
3957                 if (winfocus == NULL) {
3958                         winfocus = TAILQ_PREV(win, ws_win_list, entry);
3959                         if (TAILQ_FIRST(&ws->winlist) == win)
3960                                 winfocus = TAILQ_NEXT(win, entry);
3961                         else {
3962                                 if (ws->focus)
3963                                         winfocus = TAILQ_PREV(ws->focus,
3964                                             ws_win_list, entry);
3965                                 if (winfocus == NULL)
3966                                         winfocus = TAILQ_LAST(&ws->winlist,
3967                                             ws_win_list);
3968                         }
3969                 }
3970
3971                 /* trash window and refocus */
3972                 unmanage_window(win);
3973                 ignore_enter = 1;
3974                 stack();
3975                 focus_win(winfocus);
3976                 ignore_enter = 0;
3977         }
3978 }
3979
3980 void
3981 visibilitynotify(XEvent *e)
3982 {
3983         int                     i;
3984         struct swm_region       *r;
3985
3986         DNPRINTF(SWM_D_EVENT, "visibilitynotify: window: %lu\n",
3987             e->xvisibility.window);
3988         if (e->xvisibility.state == VisibilityUnobscured)
3989                 for (i = 0; i < ScreenCount(display); i++)
3990                         TAILQ_FOREACH(r, &screens[i].rl, entry)
3991                                 if (e->xvisibility.window == r->bar_window)
3992                                         bar_update();
3993 }
3994
3995 int
3996 xerror_start(Display *d, XErrorEvent *ee)
3997 {
3998         other_wm = 1;
3999         return (-1);
4000 }
4001
4002 int
4003 xerror(Display *d, XErrorEvent *ee)
4004 {
4005         /* fprintf(stderr, "error: %p %p\n", display, ee); */
4006         return (-1);
4007 }
4008
4009 int
4010 active_wm(void)
4011 {
4012         other_wm = 0;
4013         xerrorxlib = XSetErrorHandler(xerror_start);
4014
4015         /* this causes an error if some other window manager is running */
4016         XSelectInput(display, DefaultRootWindow(display),
4017             SubstructureRedirectMask);
4018         XSync(display, False);
4019         if (other_wm)
4020                 return (1);
4021
4022         XSetErrorHandler(xerror);
4023         XSync(display, False);
4024         return (0);
4025 }
4026
4027 void
4028 new_region(struct swm_screen *s, int x, int y, int w, int h)
4029 {
4030         struct swm_region       *r, *n;
4031         struct workspace        *ws = NULL;
4032         int                     i;
4033
4034         DNPRINTF(SWM_D_MISC, "new region: screen[%d]:%dx%d+%d+%d\n",
4035              s->idx, w, h, x, y);
4036
4037         /* remove any conflicting regions */
4038         n = TAILQ_FIRST(&s->rl);
4039         while (n) {
4040                 r = n;
4041                 n = TAILQ_NEXT(r, entry);
4042                 if (X(r) < (x + w) &&
4043                     (X(r) + WIDTH(r)) > x &&
4044                     Y(r) < (y + h) &&
4045                     (Y(r) + HEIGHT(r)) > y) {
4046                         XDestroyWindow(display, r->bar_window);
4047                         TAILQ_REMOVE(&s->rl, r, entry);
4048                         TAILQ_INSERT_TAIL(&s->orl, r, entry);
4049                 }
4050         }
4051
4052         /* search old regions for one to reuse */
4053
4054         /* size + location match */
4055         TAILQ_FOREACH(r, &s->orl, entry)
4056                 if (X(r) == x && Y(r) == y &&
4057                     HEIGHT(r) == h && WIDTH(r) == w)
4058                         break;
4059
4060         /* size match */
4061         TAILQ_FOREACH(r, &s->orl, entry)
4062                 if (HEIGHT(r) == h && WIDTH(r) == w)
4063                         break;
4064
4065         if (r != NULL) {
4066                 TAILQ_REMOVE(&s->orl, r, entry);
4067                 /* try to use old region's workspace */
4068                 if (r->ws->r == NULL)
4069                         ws = r->ws;
4070         } else
4071                 if ((r = calloc(1, sizeof(struct swm_region))) == NULL)
4072                         errx(1, "calloc: failed to allocate memory for screen");
4073
4074         /* if we don't have a workspace already, find one */
4075         if (ws == NULL) {
4076                 for (i = 0; i < SWM_WS_MAX; i++)
4077                         if (s->ws[i].r == NULL) {
4078                                 ws = &s->ws[i];
4079                                 break;
4080                         }
4081         }
4082
4083         if (ws == NULL)
4084                 errx(1, "no free workspaces\n");
4085
4086         X(r) = x;
4087         Y(r) = y;
4088         WIDTH(r) = w;
4089         HEIGHT(r) = h;
4090         r->s = s;
4091         r->ws = ws;
4092         ws->r = r;
4093         TAILQ_INSERT_TAIL(&s->rl, r, entry);
4094 }
4095
4096 void
4097 scan_xrandr(int i)
4098 {
4099 #ifdef SWM_XRR_HAS_CRTC
4100         XRRCrtcInfo             *ci;
4101         XRRScreenResources      *sr;
4102         int                     c;
4103         int                     ncrtc = 0;
4104 #endif /* SWM_XRR_HAS_CRTC */
4105         struct swm_region       *r;
4106
4107
4108         if (i >= ScreenCount(display))
4109                 errx(1, "invalid screen");
4110
4111         /* remove any old regions */
4112         while ((r = TAILQ_FIRST(&screens[i].rl)) != NULL) {
4113                 r->ws->old_r = r->ws->r = NULL;
4114                 XDestroyWindow(display, r->bar_window);
4115                 TAILQ_REMOVE(&screens[i].rl, r, entry);
4116                 TAILQ_INSERT_TAIL(&screens[i].orl, r, entry);
4117         }
4118
4119         /* map virtual screens onto physical screens */
4120 #ifdef SWM_XRR_HAS_CRTC
4121         outputs = 0;
4122         if (xrandr_support) {
4123                 sr = XRRGetScreenResources(display, screens[i].root);
4124                 if (sr == NULL)
4125                         new_region(&screens[i], 0, 0,
4126                             DisplayWidth(display, i),
4127                             DisplayHeight(display, i));
4128                 else
4129                         ncrtc = sr->ncrtc;
4130
4131                 for (c = 0, ci = NULL; c < ncrtc; c++) {
4132                         ci = XRRGetCrtcInfo(display, sr, sr->crtcs[c]);
4133                         if (ci->noutput == 0)
4134                                 continue;
4135                         outputs++;
4136
4137                         if (ci != NULL && ci->mode == None)
4138                                 new_region(&screens[i], 0, 0,
4139                                     DisplayWidth(display, i),
4140                                     DisplayHeight(display, i));
4141                         else
4142                                 new_region(&screens[i],
4143                                     ci->x, ci->y, ci->width, ci->height);
4144                 }
4145                 if (ci)
4146                         XRRFreeCrtcInfo(ci);
4147                 XRRFreeScreenResources(sr);
4148         } else
4149 #endif /* SWM_XRR_HAS_CRTC */
4150         {
4151                 new_region(&screens[i], 0, 0, DisplayWidth(display, i),
4152                     DisplayHeight(display, i));
4153         }
4154 }
4155
4156 void
4157 screenchange(XEvent *e) {
4158         XRRScreenChangeNotifyEvent      *xe = (XRRScreenChangeNotifyEvent *)e;
4159         struct swm_region               *r;
4160         int                             i;
4161
4162         DNPRINTF(SWM_D_EVENT, "screenchange: %lu\n", xe->root);
4163
4164         if (!XRRUpdateConfiguration(e))
4165                 return;
4166
4167         /* silly event doesn't include the screen index */
4168         for (i = 0; i < ScreenCount(display); i++)
4169                 if (screens[i].root == xe->root)
4170                         break;
4171         if (i >= ScreenCount(display))
4172                 errx(1, "screenchange: screen not found\n");
4173
4174         /* brute force for now, just re-enumerate the regions */
4175         scan_xrandr(i);
4176
4177         /* add bars to all regions */
4178         for (i = 0; i < ScreenCount(display); i++)
4179                 TAILQ_FOREACH(r, &screens[i].rl, entry)
4180                         bar_setup(r);
4181         stack();
4182 }
4183
4184 void
4185 setup_screens(void)
4186 {
4187         Window                  d1, d2, *wins = NULL;
4188         XWindowAttributes       wa;
4189         unsigned int            no;
4190         int                     i, j, k;
4191         int                     errorbase, major, minor;
4192         struct workspace        *ws;
4193         int                     ws_idx_atom;
4194         long                    state, manage;
4195
4196         if ((screens = calloc(ScreenCount(display),
4197              sizeof(struct swm_screen))) == NULL)
4198                 errx(1, "calloc: screens");
4199
4200         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
4201
4202         /* initial Xrandr setup */
4203         xrandr_support = XRRQueryExtension(display,
4204             &xrandr_eventbase, &errorbase);
4205         if (xrandr_support)
4206                 if (XRRQueryVersion(display, &major, &minor) && major < 1)
4207                         xrandr_support = 0;
4208
4209         /* map physical screens */
4210         for (i = 0; i < ScreenCount(display); i++) {
4211                 DNPRINTF(SWM_D_WS, "setup_screens: init screen %d\n", i);
4212                 screens[i].idx = i;
4213                 TAILQ_INIT(&screens[i].rl);
4214                 TAILQ_INIT(&screens[i].orl);
4215                 screens[i].root = RootWindow(display, i);
4216
4217                 /* set default colors */
4218                 setscreencolor("red", i + 1, SWM_S_COLOR_FOCUS);
4219                 setscreencolor("rgb:88/88/88", i + 1, SWM_S_COLOR_UNFOCUS);
4220                 setscreencolor("rgb:00/80/80", i + 1, SWM_S_COLOR_BAR_BORDER);
4221                 setscreencolor("black", i + 1, SWM_S_COLOR_BAR);
4222                 setscreencolor("rgb:a0/a0/a0", i + 1, SWM_S_COLOR_BAR_FONT);
4223
4224                 /* init all workspaces */
4225                 /* XXX these should be dynamically allocated too */
4226                 for (j = 0; j < SWM_WS_MAX; j++) {
4227                         ws = &screens[i].ws[j];
4228                         ws->idx = j;
4229                         ws->restack = 1;
4230                         ws->focus = NULL;
4231                         ws->r = NULL;
4232                         ws->old_r = NULL;
4233                         TAILQ_INIT(&ws->winlist);
4234
4235                         for (k = 0; layouts[k].l_stack != NULL; k++)
4236                                 if (layouts[k].l_config != NULL)
4237                                         layouts[k].l_config(ws,
4238                                             SWM_ARG_ID_STACKINIT);
4239                         ws->cur_layout = &layouts[0];
4240                 }
4241                 /* grab existing windows (before we build the bars)*/
4242                 if (!XQueryTree(display, screens[i].root, &d1, &d2, &wins, &no))
4243                         continue;
4244
4245                 scan_xrandr(i);
4246
4247                 if (xrandr_support)
4248                         XRRSelectInput(display, screens[i].root,
4249                             RRScreenChangeNotifyMask);
4250
4251                 /* attach windows to a region */
4252                 /* normal windows */
4253                 for (j = 0; j < no; j++) {
4254                         if (!XGetWindowAttributes(display, wins[j], &wa) ||
4255                             wa.override_redirect ||
4256                             XGetTransientForHint(display, wins[j], &d1))
4257                                 continue;
4258
4259                         state = getstate(wins[j]);
4260                         manage = state == NormalState || state == IconicState;
4261                         if (wa.map_state == IsViewable || manage)
4262                                 manage_window(wins[j]);
4263                 }
4264                 /* transient windows */
4265                 for (j = 0; j < no; j++) {
4266                         if (!XGetWindowAttributes(display, wins[j], &wa) ||
4267                             wa.override_redirect)
4268                                 continue;
4269
4270                         state = getstate(wins[j]);
4271                         manage = state == NormalState || state == IconicState;
4272                         if (XGetTransientForHint(display, wins[j], &d1) &&
4273                             manage)
4274                                 manage_window(wins[j]);
4275                 }
4276                 if (wins) {
4277                         XFree(wins);
4278                         wins = NULL;
4279                 }
4280         }
4281 }
4282
4283 void
4284 setup_globals(void)
4285 {
4286         if ((bar_fonts[0] = strdup("-*-terminus-medium-*-*-*-*-*-*-*-*-*-*-*"))
4287             == NULL)
4288                 err(1, "setup_globals: strdup");
4289         if ((bar_fonts[1] = strdup("-*-times-medium-r-*-*-*-*-*-*-*-*-*-*"))
4290             == NULL)
4291                 err(1, "setup_globals: strdup");
4292         if ((bar_fonts[2] = strdup("-misc-fixed-medium-r-*-*-*-*-*-*-*-*-*-*"))
4293             == NULL)
4294                 err(1, "setup_globals: strdup");
4295         if ((spawn_term[0] = strdup("xterm")) == NULL)
4296                 err(1, "setup_globals: strdup");
4297 }
4298
4299 void
4300 workaround(void)
4301 {
4302         int                     i;
4303         Atom                    netwmcheck, netwmname, utf8_string;
4304         Window                  root;
4305
4306         /* work around sun jdk bugs, code from wmname */
4307         netwmcheck = XInternAtom(display, "_NET_SUPPORTING_WM_CHECK", False);
4308         netwmname = XInternAtom(display, "_NET_WM_NAME", False);
4309         utf8_string = XInternAtom(display, "UTF8_STRING", False);
4310         for (i = 0; i < ScreenCount(display); i++) {
4311                 root = screens[i].root;
4312                 XChangeProperty(display, root, netwmcheck, XA_WINDOW, 32,
4313                     PropModeReplace, (unsigned char *)&root, 1);
4314                 XChangeProperty(display, root, netwmname, utf8_string, 8,
4315                     PropModeReplace, "LG3D", strlen("LG3D"));
4316         }
4317 }
4318
4319 int
4320 main(int argc, char *argv[])
4321 {
4322         struct passwd           *pwd;
4323         struct swm_region       *r, *rr;
4324         struct ws_win           *winfocus = NULL;
4325         struct timeval          tv;
4326         char                    conf[PATH_MAX], *cfile = NULL;
4327         struct stat             sb;
4328         XEvent                  e;
4329         int                     xfd, i;
4330         fd_set                  rd;
4331
4332         start_argv = argv;
4333         fprintf(stderr, "Welcome to scrotwm V%s cvs tag: %s\n",
4334             SWM_VERSION, cvstag);
4335         if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
4336                 warnx("no locale support");
4337
4338         if (!(display = XOpenDisplay(0)))
4339                 errx(1, "can not open display");
4340
4341         if (active_wm())
4342                 errx(1, "other wm running");
4343
4344         /* handle some signale */
4345         installsignal(SIGINT, "INT");
4346         installsignal(SIGHUP, "HUP");
4347         installsignal(SIGQUIT, "QUIT");
4348         installsignal(SIGTERM, "TERM");
4349         installsignal(SIGCHLD, "CHLD");
4350
4351         astate = XInternAtom(display, "WM_STATE", False);
4352         aprot = XInternAtom(display, "WM_PROTOCOLS", False);
4353         adelete = XInternAtom(display, "WM_DELETE_WINDOW", False);
4354         takefocus = XInternAtom(display, "WM_TAKE_FOCUS", False);
4355
4356         /* look for local and global conf file */
4357         pwd = getpwuid(getuid());
4358         if (pwd == NULL)
4359                 errx(1, "invalid user %d", getuid());
4360
4361         setup_screens();
4362         setup_globals();
4363         setup_keys();
4364         setup_quirks();
4365         setup_spawn();
4366
4367         snprintf(conf, sizeof conf, "%s/.%s", pwd->pw_dir, SWM_CONF_FILE);
4368         if (stat(conf, &sb) != -1) {
4369                 if (S_ISREG(sb.st_mode))
4370                         cfile = conf;
4371         } else {
4372                 /* try global conf file */
4373                 snprintf(conf, sizeof conf, "/etc/%s", SWM_CONF_FILE);
4374                 if (!stat(conf, &sb))
4375                         if (S_ISREG(sb.st_mode))
4376                                 cfile = conf;
4377         }
4378         if (cfile)
4379                 conf_load(cfile);
4380
4381         /* setup all bars */
4382         for (i = 0; i < ScreenCount(display); i++)
4383                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
4384                         if (winfocus == NULL)
4385                                 winfocus = TAILQ_FIRST(&r->ws->winlist);
4386                         bar_setup(r);
4387                 }
4388
4389         /* set some values to work around bad programs */
4390         workaround();
4391
4392         grabkeys();
4393         stack();
4394
4395         xfd = ConnectionNumber(display);
4396         while (running) {
4397                 while (XPending(display)) {
4398                         XNextEvent(display, &e);
4399                         if (running == 0)
4400                                 goto done;
4401                         if (e.type < LASTEvent) {
4402                                 dumpevent(&e);
4403                                 if (handler[e.type])
4404                                         handler[e.type](&e);
4405                                 else
4406                                         DNPRINTF(SWM_D_EVENT,
4407                                             "win: %lu unknown event: %d\n",
4408                                             e.xany.window, e.type);
4409                         } else {
4410                                 switch (e.type - xrandr_eventbase) {
4411                                 case RRScreenChangeNotify:
4412                                         screenchange(&e);
4413                                         break;
4414                                 default:
4415                                         DNPRINTF(SWM_D_EVENT,
4416                                             "win: %lu unknown xrandr event: "
4417                                             "%d\n", e.xany.window, e.type);
4418                                         break;
4419                                 }
4420                         }
4421                 }
4422
4423                 /* if we are being restarted go focus on first window */
4424                 if (winfocus) {
4425                         rr = TAILQ_FIRST(&screens[0].rl);
4426                         /* move pointer to first screen if multi screen */
4427                         if (ScreenCount(display) > 1 || outputs > 1)
4428                                 XWarpPointer(display, None, rr->s[0].root,
4429                                     0, 0, 0, 0, rr->g.x,
4430                                     rr->g.y + bar_enabled ? bar_height : 0);
4431
4432                         focus_win(winfocus);
4433                         winfocus = NULL;
4434                         continue;
4435                 }
4436
4437                 FD_ZERO(&rd);
4438                 FD_SET(xfd, &rd);
4439                 tv.tv_sec = 1;
4440                 tv.tv_usec = 0;
4441                 if (select(xfd + 1, &rd, NULL, NULL, &tv) == -1)
4442                         if (errno != EINTR)
4443                                 DNPRINTF(SWM_D_MISC, "select failed");
4444                 if (running == 0)
4445                         goto done;
4446                 if (bar_alarm) {
4447                         bar_alarm = 0;
4448                         bar_update();
4449                 }
4450         }
4451 done:
4452         bar_extra_stop();
4453
4454         XCloseDisplay(display);
4455
4456         return (0);
4457 }