spectrwm.c

   1 /*
   2  * Copyright (c) 2009-2012 Marco Peereboom <marco@peereboom.us>
   3  * Copyright (c) 2009-2011 Ryan McBride <mcbride@countersiege.com>
   4  * Copyright (c) 2009 Darrin Chandler <dwchandler@stilyagin.com>
   5  * Copyright (c) 2009 Pierre-Yves Ritschard <pyr@spootnik.org>
   6  * Copyright (c) 2010 Tuukka Kataja <stuge@xor.fi>
   7  * Copyright (c) 2011 Jason L. Wright <jason@thought.net>
   8  * Copyright (c) 2011-2013 Reginald Kennedy <rk@rejii.com>
   9  * Copyright (c) 2011-2012 Lawrence Teo <lteo@lteo.net>
  10  * Copyright (c) 2011-2012 Tiago Cunha <tcunha@gmx.com>
  11  * Copyright (c) 2012-2013 David Hill <dhill@mindcry.org>
  12  *
  13  * Permission to use, copy, modify, and distribute this software for any
  14  * purpose with or without fee is hereby granted, provided that the above
  15  * copyright notice and this permission notice appear in all copies.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  18  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  19  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  20  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  21  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  22  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  23  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  24  */
  25 /*
  26  * Much code and ideas taken from dwm under the following license:
  27  * MIT/X Consortium License
  28  *
  29  * 2006-2008 Anselm R Garbe <garbeam at gmail dot com>
  30  * 2006-2007 Sander van Dijk <a dot h dot vandijk at gmail dot com>
  31  * 2006-2007 Jukka Salmi <jukka at salmi dot ch>
  32  * 2007 Premysl Hruby <dfenze at gmail dot com>
  33  * 2007 Szabolcs Nagy <nszabolcs at gmail dot com>
  34  * 2007 Christof Musik <christof at sendfax dot de>
  35  * 2007-2008 Enno Gottox Boland <gottox at s01 dot de>
  36  * 2007-2008 Peter Hartlich <sgkkr at hartlich dot com>
  37  * 2008 Martin Hurton <martin dot hurton at gmail dot com>
  38  *
  39  * Permission is hereby granted, free of charge, to any person obtaining a
  40  * copy of this software and associated documentation files (the "Software"),
  41  * to deal in the Software without restriction, including without limitation
  42  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  43  * and/or sell copies of the Software, and to permit persons to whom the
  44  * Software is furnished to do so, subject to the following conditions:
  45  *
  46  * The above copyright notice and this permission notice shall be included in
  47  * all copies or substantial portions of the Software.
  48  *
  49  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  50  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  51  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  52  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  53  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  54  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  55  * DEALINGS IN THE SOFTWARE.
  56  */
  57
  58 /* kernel includes */
  59 #include <sys/types.h>
  60 #include <sys/time.h>
  61 #include <sys/stat.h>
  62 #include <sys/wait.h>
  63 #include <sys/queue.h>
  64 #include <sys/param.h>
  65 #include <sys/select.h>
  66 #if defined(__linux__)
  67 #include "tree.h"
  68 #elif defined(__OpenBSD__)
  69 #include <sys/tree.h>
  70 #elif defined(__FreeBSD__)
  71 #include <sys/tree.h>
  72 #else
  73 #include "tree.h"
  74 #endif
  75
  76 /* /usr/includes */
  77 #include <ctype.h>
  78 #include <err.h>
  79 #include <errno.h>
  80 #include <fcntl.h>
  81 #include <locale.h>
  82 #include <paths.h>
  83 #include <pwd.h>
  84 #include <regex.h>
  85 #include <signal.h>
  86 #include <stdio.h>
  87 #include <stdlib.h>
  88 #include <string.h>
  89 #include <time.h>
  90 #include <unistd.h>
  91 #include <util.h>
  92 #include <X11/cursorfont.h>
  93 #include <X11/extensions/Xrandr.h>
  94 #include <X11/Xcursor/Xcursor.h>
  95 #include <X11/Xft/Xft.h>
  96 #include <X11/Xlib-xcb.h>
  97 #include <xcb/xcb_atom.h>
  98 #include <xcb/xcb_aux.h>
  99 #include <xcb/xcb_event.h>
 100 #include <xcb/xcb_icccm.h>
 101 #include <xcb/xcb_keysyms.h>
 102 #include <xcb/xtest.h>
 103 #include <xcb/randr.h>
 104
 105 /* local includes */
 106 #include "version.h"
 107 #ifdef __OSX__
 108 #include <osx.h>
 109 #endif
 110
 111 #ifdef SPECTRWM_BUILDSTR
 112 static const char       *buildstr = SPECTRWM_BUILDSTR;
 113 #else
 114 static const char       *buildstr = SPECTRWM_VERSION;
 115 #endif
 116
 117 #if !defined(__CYGWIN__) /* cygwin chokes on xrandr stuff */
 118 #  if RANDR_MAJOR < 1
 119 #    error XRandR versions less than 1.0 are not supported
 120 #endif
 121
 122 #  if RANDR_MAJOR >= 1
 123 #    if RANDR_MINOR >= 2
 124 #      define SWM_XRR_HAS_CRTC
 125 #    endif
 126 #  endif
 127 #endif /* __CYGWIN__ */
 128
 129 #ifndef XCB_ICCCM_NUM_WM_HINTS_ELEMENTS
 130 #define XCB_ICCCM_SIZE_HINT_P_MIN_SIZE          XCB_SIZE_HINT_P_MIN_SIZE
 131 #define XCB_ICCCM_SIZE_HINT_P_MAX_SIZE          XCB_SIZE_HINT_P_MAX_SIZE
 132 #define XCB_ICCCM_SIZE_HINT_P_RESIZE_INC        XCB_SIZE_HINT_P_RESIZE_INC
 133 #define XCB_ICCCM_WM_HINT_INPUT                 XCB_WM_HINT_INPUT
 134 #define XCB_ICCCM_WM_HINT_X_URGENCY             XCB_WM_HINT_X_URGENCY
 135 #define XCB_ICCCM_WM_STATE_ICONIC               XCB_WM_STATE_ICONIC
 136 #define XCB_ICCCM_WM_STATE_WITHDRAWN            XCB_WM_STATE_WITHDRAWN
 137 #define XCB_ICCCM_WM_STATE_NORMAL               XCB_WM_STATE_NORMAL
 138 #define xcb_icccm_get_text_property_reply_t     xcb_get_text_property_reply_t
 139 #define xcb_icccm_get_text_property_reply_wipe  xcb_get_text_property_reply_wipe
 140 #define xcb_icccm_get_wm_class                  xcb_get_wm_class
 141 #define xcb_icccm_get_wm_class_reply            xcb_get_wm_class_reply
 142 #define xcb_icccm_get_wm_class_reply_t          xcb_get_wm_class_reply_t
 143 #define xcb_icccm_get_wm_class_reply_wipe       xcb_get_wm_class_reply_wipe
 144 #define xcb_icccm_get_wm_hints                  xcb_get_wm_hints
 145 #define xcb_icccm_wm_hints_get_urgency          xcb_wm_hints_get_urgency
 146 #define xcb_icccm_get_wm_hints_reply            xcb_get_wm_hints_reply
 147 #define xcb_icccm_get_wm_name                   xcb_get_wm_name
 148 #define xcb_icccm_get_wm_name_reply             xcb_get_wm_name_reply
 149 #define xcb_icccm_get_wm_normal_hints           xcb_get_wm_normal_hints
 150 #define xcb_icccm_get_wm_normal_hints_reply     xcb_get_wm_normal_hints_reply
 151 #define xcb_icccm_get_wm_protocols              xcb_get_wm_protocols
 152 #define xcb_icccm_get_wm_protocols_reply        xcb_get_wm_protocols_reply
 153 #define xcb_icccm_get_wm_protocols_reply_t      xcb_get_wm_protocols_reply_t
 154 #define xcb_icccm_get_wm_protocols_reply_wipe   xcb_get_wm_protocols_reply_wipe
 155 #define xcb_icccm_get_wm_transient_for          xcb_get_wm_transient_for
 156 #define xcb_icccm_get_wm_transient_for_reply    xcb_get_wm_transient_for_reply
 157 #define xcb_icccm_wm_hints_t                    xcb_wm_hints_t
 158 #endif
 159
 160 /*#define SWM_DEBUG*/
 161 #ifdef SWM_DEBUG
 162 #define DPRINTF(x...) do {                                                      \
 163         if (swm_debug)                                                          \
 164                 fprintf(stderr, x);                                             \
 165 } while (0)
 166 #define DNPRINTF(n,x...) do {                                                   \
 167         if (swm_debug & n) {                                                    \
 168                 fprintf(stderr, "%ld ", (long)(time(NULL) - time_started));     \
 169                 fprintf(stderr, x);                                             \
 170         }                                                                       \
 171 } while (0)
 172 #define SWM_D_MISC              0x0001
 173 #define SWM_D_EVENT             0x0002
 174 #define SWM_D_WS                0x0004
 175 #define SWM_D_FOCUS             0x0008
 176 #define SWM_D_MOVE              0x0010
 177 #define SWM_D_STACK             0x0020
 178 #define SWM_D_MOUSE             0x0040
 179 #define SWM_D_PROP              0x0080
 180 #define SWM_D_CLASS             0x0100
 181 #define SWM_D_KEY               0x0200
 182 #define SWM_D_QUIRK             0x0400
 183 #define SWM_D_SPAWN             0x0800
 184 #define SWM_D_EVENTQ            0x1000
 185 #define SWM_D_CONF              0x2000
 186 #define SWM_D_BAR               0x4000
 187 #define SWM_D_INIT              0x8000
 188
 189 u_int32_t               swm_debug = 0
 190                             | SWM_D_MISC
 191                             | SWM_D_EVENT
 192                             | SWM_D_WS
 193                             | SWM_D_FOCUS
 194                             | SWM_D_MOVE
 195                             | SWM_D_STACK
 196                             | SWM_D_MOUSE
 197                             | SWM_D_PROP
 198                             | SWM_D_CLASS
 199                             | SWM_D_KEY
 200                             | SWM_D_QUIRK
 201                             | SWM_D_SPAWN
 202                             | SWM_D_EVENTQ
 203                             | SWM_D_CONF
 204                             | SWM_D_BAR
 205                             | SWM_D_INIT
 206                             ;
 207 #else
 208 #define DPRINTF(x...)
 209 #define DNPRINTF(n,x...)
 210 #endif
 211
 212 #define SWM_EWMH_ACTION_COUNT_MAX       (8)
 213 #define EWMH_F_FULLSCREEN               (0x001)
 214 #define EWMH_F_ABOVE                    (0x002)
 215 #define EWMH_F_HIDDEN                   (0x004)
 216 #define EWMH_F_MAXIMIZED_VERT           (0x008)
 217 #define EWMH_F_MAXIMIZED_HORZ           (0x010)
 218 #define EWMH_F_SKIP_PAGER               (0x020)
 219 #define EWMH_F_SKIP_TASKBAR             (0x040)
 220 #define SWM_F_MANUAL                    (0x080)
 221
 222 #define EWMH_F_MAXIMIZED        (EWMH_F_MAXIMIZED_VERT | EWMH_F_MAXIMIZED_HORZ)
 223
 224 /* convert 8-bit to 16-bit */
 225 #define RGB_8_TO_16(col)        (((col) << 8) + (col))
 226
 227 #define PIXEL_TO_XRENDERCOLOR(px, xrc)                                  \
 228         xrc.red = RGB_8_TO_16((px) >> 16 & 0xff);                       \
 229         xrc.green = RGB_8_TO_16((px) >> 8 & 0xff);                      \
 230         xrc.blue = RGB_8_TO_16((px) & 0xff);                            \
 231         xrc.alpha = 0xffff;
 232
 233 #define LENGTH(x)               (int)(sizeof (x) / sizeof (x)[0])
 234 #define MODKEY                  XCB_MOD_MASK_1
 235 #define CLEANMASK(mask)         ((mask) & ~(numlockmask | XCB_MOD_MASK_LOCK))
 236 #define BUTTONMASK              (XCB_EVENT_MASK_BUTTON_PRESS |          \
 237     XCB_EVENT_MASK_BUTTON_RELEASE)
 238 #define MOUSEMASK               (BUTTONMASK|XCB_EVENT_MASK_POINTER_MOTION)
 239 #define SWM_PROPLEN             (16)
 240 #define SWM_FUNCNAME_LEN        (32)
 241 #define SWM_KEYS_LEN            (255)
 242 #define SWM_QUIRK_LEN           (64)
 243 #define X(r)                    ((r)->g.x)
 244 #define Y(r)                    ((r)->g.y)
 245 #define WIDTH(r)                ((r)->g.w)
 246 #define HEIGHT(r)               ((r)->g.h)
 247 #define BORDER(w)               ((w)->bordered ? border_width : 0)
 248 #define MAX_X(r)                ((r)->g.x + (r)->g.w)
 249 #define MAX_Y(r)                ((r)->g.y + (r)->g.h)
 250 #define SH_MIN(w)               ((w)->sh.flags & XCB_ICCCM_SIZE_HINT_P_MIN_SIZE)
 251 #define SH_MIN_W(w)             ((w)->sh.min_width)
 252 #define SH_MIN_H(w)             ((w)->sh.min_height)
 253 #define SH_MAX(w)               ((w)->sh.flags & XCB_ICCCM_SIZE_HINT_P_MAX_SIZE)
 254 #define SH_MAX_W(w)             ((w)->sh.max_width)
 255 #define SH_MAX_H(w)             ((w)->sh.max_height)
 256 #define SH_INC(w)               ((w)->sh.flags & XCB_ICCCM_SIZE_HINT_P_RESIZE_INC)
 257 #define SH_INC_W(w)             ((w)->sh.width_inc)
 258 #define SH_INC_H(w)             ((w)->sh.height_inc)
 259 #define SWM_MAX_FONT_STEPS      (3)
 260 #define WINID(w)                ((w) ? (w)->id : XCB_WINDOW_NONE)
 261 #define WS_FOCUSED(ws)          ((ws)->r && (ws)->r->s->r_focus == (ws)->r)
 262 #define YESNO(x)                ((x) ? "yes" : "no")
 263 #define ICONIC(w)               ((w)->ewmh_flags & EWMH_F_HIDDEN)
 264 #define ABOVE(w)                ((w)->ewmh_flags & EWMH_F_ABOVE)
 265 #define FULLSCREEN(w)           ((w)->ewmh_flags & EWMH_F_FULLSCREEN)
 266 #define MAXIMIZED_VERT(w)       ((w)->ewmh_flags & EWMH_F_MAXIMIZED_VERT)
 267 #define MAXIMIZED_HORZ(w)       ((w)->ewmh_flags & EWMH_F_MAXIMIZED_HORZ)
 268 #define MAXIMIZED(w)            (MAXIMIZED_VERT(w) || MAXIMIZED_HORZ(w))
 269 #define MANUAL(w)               ((w)->ewmh_flags & SWM_F_MANUAL)
 270 #define TRANS(w)                ((w)->transient != XCB_WINDOW_NONE)
 271 #define FLOATING(w)             (ABOVE(w) || TRANS(w) || FULLSCREEN(w) ||      \
 272     MAXIMIZED(w))
 273
 274 /* Constrain Window flags */
 275 #define SWM_CW_RESIZABLE        (0x01)
 276 #define SWM_CW_SOFTBOUNDARY     (0x02)
 277 #define SWM_CW_HARDBOUNDARY     (0x04)
 278 #define SWM_CW_RIGHT            (0x10)
 279 #define SWM_CW_LEFT             (0x20)
 280 #define SWM_CW_BOTTOM           (0x40)
 281 #define SWM_CW_TOP              (0x80)
 282 #define SWM_CW_ALLSIDES         (0xf0)
 283
 284 #define SWM_FOCUS_DEFAULT       (0)
 285 #define SWM_FOCUS_FOLLOW        (1)
 286 #define SWM_FOCUS_MANUAL        (2)
 287
 288 #define SWM_CK_NONE             (0)
 289 #define SWM_CK_ALL              (0xf)
 290 #define SWM_CK_FOCUS            (0x1)
 291 #define SWM_CK_POINTER          (0x2)
 292 #define SWM_CK_FALLBACK         (0x4)
 293 #define SWM_CK_REGION           (0x8)
 294
 295 #define SWM_G_ALL               (0xf)
 296 #define SWM_G_SIZE              (0x1)
 297 #define SWM_G_POS               (0x2)
 298
 299 #define SWM_CONF_DEFAULT        (0)
 300 #define SWM_CONF_KEYMAPPING     (1)
 301
 302 #ifndef SWM_LIB
 303 #define SWM_LIB                 "/usr/local/lib/libswmhack.so"
 304 #endif
 305
 306 char                    **start_argv;
 307 xcb_atom_t              a_state;
 308 xcb_atom_t              a_prot;
 309 xcb_atom_t              a_delete;
 310 xcb_atom_t              a_net_wm_check;
 311 xcb_atom_t              a_net_supported;
 312 xcb_atom_t              a_takefocus;
 313 xcb_atom_t              a_utf8_string;
 314 xcb_atom_t              a_swm_ws;
 315 volatile sig_atomic_t   running = 1;
 316 volatile sig_atomic_t   restart_wm = 0;
 317 xcb_timestamp_t         last_event_time = 0;
 318 int                     outputs = 0;
 319 int                     other_wm;
 320 int                     xrandr_support;
 321 int                     xrandr_eventbase;
 322 unsigned int            numlockmask = 0;
 323
 324 Display                 *display;
 325 xcb_connection_t        *conn;
 326 xcb_key_symbols_t       *syms;
 327
 328 int                     boundary_width = 50;
 329 int                     cycle_empty = 0;
 330 int                     cycle_visible = 0;
 331 int                     term_width = 0;
 332 int                     font_adjusted = 0;
 333 unsigned int            mod_key = MODKEY;
 334
 335 /* dmenu search */
 336 struct swm_region       *search_r;
 337 int                     select_list_pipe[2];
 338 int                     select_resp_pipe[2];
 339 pid_t                   searchpid;
 340 volatile sig_atomic_t   search_resp;
 341 int                     search_resp_action;
 342
 343 struct search_window {
 344         TAILQ_ENTRY(search_window)      entry;
 345         int                             idx;
 346         struct ws_win                   *win;
 347         xcb_gcontext_t                  gc;
 348         xcb_window_t                    indicator;
 349 };
 350 TAILQ_HEAD(search_winlist, search_window);
 351 struct search_winlist                   search_wl;
 352
 353 /* search actions */
 354 enum {
 355         SWM_SEARCH_NONE,
 356         SWM_SEARCH_UNICONIFY,
 357         SWM_SEARCH_NAME_WORKSPACE,
 358         SWM_SEARCH_SEARCH_WORKSPACE,
 359         SWM_SEARCH_SEARCH_WINDOW
 360 };
 361
 362 #define SWM_STACK_TOP           (0)
 363 #define SWM_STACK_BOTTOM        (1)
 364 #define SWM_STACK_ABOVE         (2)
 365 #define SWM_STACK_BELOW         (3)
 366
 367 /* dialog windows */
 368 double                  dialog_ratio = 0.6;
 369 /* status bar */
 370 #define SWM_BAR_MAX             (256)
 371 #define SWM_BAR_JUSTIFY_LEFT    (0)
 372 #define SWM_BAR_JUSTIFY_CENTER  (1)
 373 #define SWM_BAR_JUSTIFY_RIGHT   (2)
 374 #define SWM_BAR_OFFSET          (4)
 375 #define SWM_BAR_FONTS           "-*-terminus-medium-*-*-*-12-*-*-*-*-*-*-*,"    \
 376                                 "-*-profont-*-*-*-*-12-*-*-*-*-*-*-*,"          \
 377                                 "-*-times-medium-r-*-*-12-*-*-*-*-*-*-*,"       \
 378                                 "-misc-fixed-medium-r-*-*-12-*-*-*-*-*-*-*,"    \
 379                                 "-*-*-*-r-*-*-*-*-*-*-*-*-*-*"
 380
 381 #ifdef X_HAVE_UTF8_STRING
 382 #define DRAWSTRING(x...)        Xutf8DrawString(x)
 383 #else
 384 #define DRAWSTRING(x...)        XmbDrawString(x)
 385 #endif
 386
 387 char            *bar_argv[] = { NULL, NULL };
 388 int              bar_pipe[2];
 389 char             bar_ext[SWM_BAR_MAX];
 390 char             bar_ext_buf[SWM_BAR_MAX];
 391 char             bar_vertext[SWM_BAR_MAX];
 392 int              bar_version = 0;
 393 int              bar_enabled = 1;
 394 int              bar_border_width = 1;
 395 int              bar_at_bottom = 0;
 396 int              bar_extra = 0;
 397 int              bar_verbose = 1;
 398 int              bar_height = 0;
 399 int              bar_justify = SWM_BAR_JUSTIFY_LEFT;
 400 char             *bar_format = NULL;
 401 int              stack_enabled = 1;
 402 int              clock_enabled = 1;
 403 int              iconic_enabled = 0;
 404 int              urgent_enabled = 0;
 405 char            *clock_format = NULL;
 406 int              window_class_enabled = 0;
 407 int              window_instance_enabled = 0;
 408 int              window_name_enabled = 0;
 409 int              focus_mode = SWM_FOCUS_DEFAULT;
 410 int              focus_close = SWM_STACK_BELOW;
 411 int              focus_close_wrap = 1;
 412 int              focus_default = SWM_STACK_TOP;
 413 int              spawn_position = SWM_STACK_TOP;
 414 int              disable_border = 0;
 415 int              border_width = 1;
 416 int              region_padding = 0;
 417 int              tile_gap = 0;
 418 int              java_workaround = 1;
 419 int              verbose_layout = 0;
 420 time_t           time_started;
 421 pid_t            bar_pid;
 422 XFontSet         bar_fs;
 423 XFontSetExtents *bar_fs_extents;
 424 XftFont         *bar_font;
 425 int              bar_font_legacy = 1;
 426 char            *bar_fonts;
 427 XftColor         bar_font_color;
 428 struct passwd   *pwd;
 429 char            *startup_exception;
 430 unsigned int     nr_exceptions = 0;
 431
 432 /* layout manager data */
 433 struct swm_geometry {
 434         int                     x;
 435         int                     y;
 436         int                     w;
 437         int                     h;
 438 };
 439
 440 struct swm_screen;
 441 struct workspace;
 442
 443 struct swm_bar {
 444         xcb_window_t            id;
 445         xcb_pixmap_t            buffer;
 446         struct swm_geometry     g;
 447 };
 448
 449 /* virtual "screens" */
 450 struct swm_region {
 451         TAILQ_ENTRY(swm_region) entry;
 452         xcb_window_t            id;
 453         struct swm_geometry     g;
 454         struct workspace        *ws;    /* current workspace on this region */
 455         struct workspace        *ws_prior; /* prior workspace on this region */
 456         struct swm_screen       *s;     /* screen idx */
 457         struct swm_bar          *bar;
 458 };
 459 TAILQ_HEAD(swm_region_list, swm_region);
 460
 461 struct ws_win {
 462         TAILQ_ENTRY(ws_win)     entry;
 463         TAILQ_ENTRY(ws_win)     stack_entry;
 464         xcb_window_t            id;
 465         xcb_window_t            transient;
 466         struct ws_win           *focus_child;   /* focus on child transient */
 467         struct swm_geometry     g;              /* current geometry */
 468         struct swm_geometry     g_float;        /* region coordinates */
 469         int                     g_floatvalid;   /* g_float geometry validity */
 470         int32_t                 mapped;
 471         int                     bordered;
 472         uint32_t                ewmh_flags;
 473         int                     font_size_boundary[SWM_MAX_FONT_STEPS];
 474         int                     font_steps;
 475         int                     last_inc;
 476         int                     can_delete;
 477         int                     take_focus;
 478         int                     java;
 479         unsigned long           quirks;
 480         struct workspace        *ws;    /* always valid */
 481         struct swm_screen       *s;     /* always valid, never changes */
 482         xcb_size_hints_t        sh;
 483         xcb_icccm_get_wm_class_reply_t  ch;
 484         xcb_icccm_wm_hints_t    hints;
 485 };
 486 TAILQ_HEAD(ws_win_list, ws_win);
 487 TAILQ_HEAD(ws_win_stack, ws_win);
 488
 489 /* pid goo */
 490 struct pid_e {
 491         TAILQ_ENTRY(pid_e)      entry;
 492         pid_t                   pid;
 493         int                     ws;
 494 };
 495 TAILQ_HEAD(pid_list, pid_e);
 496 struct pid_list                 pidlist = TAILQ_HEAD_INITIALIZER(pidlist);
 497
 498 /* layout handlers */
 499 void    stack(void);
 500 void    vertical_config(struct workspace *, int);
 501 void    vertical_stack(struct workspace *, struct swm_geometry *);
 502 void    horizontal_config(struct workspace *, int);
 503 void    horizontal_stack(struct workspace *, struct swm_geometry *);
 504 void    max_stack(struct workspace *, struct swm_geometry *);
 505 void    plain_stacker(struct workspace *);
 506 void    fancy_stacker(struct workspace *);
 507
 508 struct layout {
 509         void            (*l_stack)(struct workspace *, struct swm_geometry *);
 510         void            (*l_config)(struct workspace *, int);
 511         u_int32_t       flags;
 512 #define SWM_L_FOCUSPREV         (1<<0)
 513 #define SWM_L_MAPONFOCUS        (1<<1)
 514         void            (*l_string)(struct workspace *);
 515 } layouts[] =  {
 516         /* stack,               configure */
 517         { vertical_stack,       vertical_config,        0,      plain_stacker },
 518         { horizontal_stack,     horizontal_config,      0,      plain_stacker },
 519         { max_stack,            NULL,
 520           SWM_L_MAPONFOCUS | SWM_L_FOCUSPREV,                   plain_stacker },
 521         { NULL,                 NULL,                   0,      NULL  },
 522 };
 523
 524 /* position of max_stack mode in the layouts array, index into layouts! */
 525 #define SWM_V_STACK             (0)
 526 #define SWM_H_STACK             (1)
 527 #define SWM_MAX_STACK           (2)
 528
 529 #define SWM_H_SLICE             (32)
 530 #define SWM_V_SLICE             (32)
 531
 532 /* define work spaces */
 533 struct workspace {
 534         int                     idx;            /* workspace index */
 535         char                    *name;          /* workspace name */
 536         int                     always_raise;   /* raise windows on focus */
 537         int                     bar_enabled;    /* bar visibility */
 538         struct layout           *cur_layout;    /* current layout handlers */
 539         struct ws_win           *focus;         /* may be NULL */
 540         struct ws_win           *focus_prev;    /* may be NULL */
 541         struct ws_win           *focus_pending; /* may be NULL */
 542         struct swm_region       *r;             /* may be NULL */
 543         struct swm_region       *old_r;         /* may be NULL */
 544         struct ws_win_list      winlist;        /* list of windows in ws */
 545         struct ws_win_list      unmanagedlist;  /* list of dead windows in ws */
 546         struct ws_win_stack     stack;          /* stacking order */
 547         int32_t                 state;          /* mapping state */
 548         char                    stacker[10];    /* display stacker and layout */
 549
 550         /* stacker state */
 551         struct {
 552                                 int horizontal_msize;
 553                                 int horizontal_mwin;
 554                                 int horizontal_stacks;
 555                                 int horizontal_flip;
 556                                 int vertical_msize;
 557                                 int vertical_mwin;
 558                                 int vertical_stacks;
 559                                 int vertical_flip;
 560         } l_state;
 561 };
 562
 563 enum {
 564         SWM_WS_STATE_HIDDEN,
 565         SWM_WS_STATE_MAPPING,
 566         SWM_WS_STATE_MAPPED,
 567 };
 568
 569 enum {
 570         SWM_S_COLOR_BAR,
 571         SWM_S_COLOR_BAR_BORDER,
 572         SWM_S_COLOR_BAR_BORDER_UNFOCUS,
 573         SWM_S_COLOR_BAR_FONT,
 574         SWM_S_COLOR_FOCUS,
 575         SWM_S_COLOR_UNFOCUS,
 576         SWM_S_COLOR_MAX
 577 };
 578
 579 /* physical screen mapping */
 580 #define SWM_WS_MAX              (22)    /* hard limit */
 581 int             workspace_limit = 10;   /* soft limit */
 582
 583 struct swm_screen {
 584         int                     idx;    /* screen index */
 585         struct swm_region_list  rl;     /* list of regions on this screen */
 586         struct swm_region_list  orl;    /* list of old regions */
 587         xcb_window_t            root;
 588         struct workspace        ws[SWM_WS_MAX];
 589         struct swm_region       *r_focus;
 590
 591         /* colors */
 592         struct {
 593                 uint32_t        pixel;
 594                 char            *name;
 595         } c[SWM_S_COLOR_MAX];
 596
 597         xcb_gcontext_t          bar_gc;
 598         GC                      bar_gc_legacy;
 599 };
 600 struct swm_screen       *screens;
 601
 602 /* args to functions */
 603 union arg {
 604         int                     id;
 605 #define SWM_ARG_ID_FOCUSNEXT    (0)
 606 #define SWM_ARG_ID_FOCUSPREV    (1)
 607 #define SWM_ARG_ID_FOCUSMAIN    (2)
 608 #define SWM_ARG_ID_FOCUSURGENT  (3)
 609 #define SWM_ARG_ID_SWAPNEXT     (10)
 610 #define SWM_ARG_ID_SWAPPREV     (11)
 611 #define SWM_ARG_ID_SWAPMAIN     (12)
 612 #define SWM_ARG_ID_MOVELAST     (13)
 613 #define SWM_ARG_ID_MASTERSHRINK (20)
 614 #define SWM_ARG_ID_MASTERGROW   (21)
 615 #define SWM_ARG_ID_MASTERADD    (22)
 616 #define SWM_ARG_ID_MASTERDEL    (23)
 617 #define SWM_ARG_ID_FLIPLAYOUT   (24)
 618 #define SWM_ARG_ID_STACKRESET   (30)
 619 #define SWM_ARG_ID_STACKINIT    (31)
 620 #define SWM_ARG_ID_CYCLEWS_UP   (40)
 621 #define SWM_ARG_ID_CYCLEWS_DOWN (41)
 622 #define SWM_ARG_ID_CYCLERG_UP   (42)
 623 #define SWM_ARG_ID_CYCLERG_DOWN (43)
 624 #define SWM_ARG_ID_CYCLEWS_UP_ALL       (44)
 625 #define SWM_ARG_ID_CYCLEWS_DOWN_ALL     (45)
 626 #define SWM_ARG_ID_CYCLEWS_MOVE_UP      (46)
 627 #define SWM_ARG_ID_CYCLEWS_MOVE_DOWN    (47)
 628 #define SWM_ARG_ID_STACKINC     (50)
 629 #define SWM_ARG_ID_STACKDEC     (51)
 630 #define SWM_ARG_ID_SS_ALL       (60)
 631 #define SWM_ARG_ID_SS_WINDOW    (61)
 632 #define SWM_ARG_ID_DONTCENTER   (70)
 633 #define SWM_ARG_ID_CENTER       (71)
 634 #define SWM_ARG_ID_KILLWINDOW   (80)
 635 #define SWM_ARG_ID_DELETEWINDOW (81)
 636 #define SWM_ARG_ID_WIDTHGROW    (90)
 637 #define SWM_ARG_ID_WIDTHSHRINK  (91)
 638 #define SWM_ARG_ID_HEIGHTGROW   (92)
 639 #define SWM_ARG_ID_HEIGHTSHRINK (93)
 640 #define SWM_ARG_ID_MOVEUP       (100)
 641 #define SWM_ARG_ID_MOVEDOWN     (101)
 642 #define SWM_ARG_ID_MOVELEFT     (102)
 643 #define SWM_ARG_ID_MOVERIGHT    (103)
 644 #define SWM_ARG_ID_BAR_TOGGLE   (110)
 645 #define SWM_ARG_ID_BAR_TOGGLE_WS        (111)
 646         char                    **argv;
 647 };
 648
 649 /* quirks */
 650 struct quirk {
 651         TAILQ_ENTRY(quirk)      entry;
 652         char                    *class;         /* WM_CLASS:class */
 653         char                    *instance;      /* WM_CLASS:instance */
 654         char                    *name;          /* WM_NAME */
 655         regex_t                 regex_class;
 656         regex_t                 regex_instance;
 657         regex_t                 regex_name;
 658         unsigned long           quirk;
 659 #define SWM_Q_FLOAT             (1<<0)  /* float this window */
 660 #define SWM_Q_TRANSSZ           (1<<1)  /* transiend window size too small */
 661 #define SWM_Q_ANYWHERE          (1<<2)  /* don't position this window */
 662 #define SWM_Q_XTERM_FONTADJ     (1<<3)  /* adjust xterm fonts when resizing */
 663 #define SWM_Q_FULLSCREEN        (1<<4)  /* remove border */
 664 #define SWM_Q_FOCUSPREV         (1<<5)  /* focus on caller */
 665 #define SWM_Q_NOFOCUSONMAP      (1<<6)  /* Don't focus on window when mapped. */
 666 #define SWM_Q_FOCUSONMAP_SINGLE (1<<7)  /* Only focus if single win of type. */
 667 };
 668 TAILQ_HEAD(quirk_list, quirk);
 669 struct quirk_list               quirks = TAILQ_HEAD_INITIALIZER(quirks);
 670
 671 /*
 672  * Supported EWMH hints should be added to
 673  * both the enum and the ewmh array
 674  */
 675 enum {
 676         _NET_ACTIVE_WINDOW,
 677         _NET_CLIENT_LIST,
 678         _NET_CLOSE_WINDOW,
 679         _NET_CURRENT_DESKTOP,
 680         _NET_DESKTOP_NAMES,
 681         _NET_MOVERESIZE_WINDOW,
 682         _NET_NUMBER_OF_DESKTOPS,
 683         _NET_RESTACK_WINDOW,
 684         _NET_WM_ACTION_ABOVE,
 685         _NET_WM_ACTION_CLOSE,
 686         _NET_WM_ACTION_FULLSCREEN,
 687         _NET_WM_ACTION_MOVE,
 688         _NET_WM_ACTION_RESIZE,
 689         _NET_WM_ALLOWED_ACTIONS,
 690         _NET_WM_DESKTOP,
 691         _NET_WM_FULL_PLACEMENT,
 692         _NET_WM_NAME,
 693         _NET_WM_STATE,
 694         _NET_WM_STATE_ABOVE,
 695         _NET_WM_STATE_FULLSCREEN,
 696         _NET_WM_STATE_HIDDEN,
 697         _NET_WM_STATE_MAXIMIZED_VERT,
 698         _NET_WM_STATE_MAXIMIZED_HORZ,
 699         _NET_WM_STATE_SKIP_PAGER,
 700         _NET_WM_STATE_SKIP_TASKBAR,
 701         _NET_WM_WINDOW_TYPE,
 702         _NET_WM_WINDOW_TYPE_DIALOG,
 703         _NET_WM_WINDOW_TYPE_DOCK,
 704         _NET_WM_WINDOW_TYPE_NORMAL,
 705         _NET_WM_WINDOW_TYPE_SPLASH,
 706         _NET_WM_WINDOW_TYPE_TOOLBAR,
 707         _NET_WM_WINDOW_TYPE_UTILITY,
 708         _SWM_WM_STATE_MANUAL,
 709         SWM_EWMH_HINT_MAX
 710 };
 711
 712 struct ewmh_hint {
 713         char            *name;
 714         xcb_atom_t      atom;
 715 } ewmh[SWM_EWMH_HINT_MAX] =     {
 716     /* must be in same order as in the enum */
 717     {"_NET_ACTIVE_WINDOW", XCB_ATOM_NONE},
 718     {"_NET_CLIENT_LIST", XCB_ATOM_NONE},
 719     {"_NET_CLOSE_WINDOW", XCB_ATOM_NONE},
 720     {"_NET_CURRENT_DESKTOP", XCB_ATOM_NONE},
 721     {"_NET_DESKTOP_NAMES", XCB_ATOM_NONE},
 722     {"_NET_MOVERESIZE_WINDOW", XCB_ATOM_NONE},
 723     {"_NET_NUMBER_OF_DESKTOPS", XCB_ATOM_NONE},
 724     {"_NET_RESTACK_WINDOW", XCB_ATOM_NONE},
 725     {"_NET_WM_ACTION_ABOVE", XCB_ATOM_NONE},
 726     {"_NET_WM_ACTION_CLOSE", XCB_ATOM_NONE},
 727     {"_NET_WM_ACTION_FULLSCREEN", XCB_ATOM_NONE},
 728     {"_NET_WM_ACTION_MOVE", XCB_ATOM_NONE},
 729     {"_NET_WM_ACTION_RESIZE", XCB_ATOM_NONE},
 730     {"_NET_WM_ALLOWED_ACTIONS", XCB_ATOM_NONE},
 731     {"_NET_WM_DESKTOP", XCB_ATOM_NONE},
 732     {"_NET_WM_FULL_PLACEMENT", XCB_ATOM_NONE},
 733     {"_NET_WM_NAME", XCB_ATOM_NONE},
 734     {"_NET_WM_STATE", XCB_ATOM_NONE},
 735     {"_NET_WM_STATE_ABOVE", XCB_ATOM_NONE},
 736     {"_NET_WM_STATE_FULLSCREEN", XCB_ATOM_NONE},
 737     {"_NET_WM_STATE_HIDDEN", XCB_ATOM_NONE},
 738     {"_NET_WM_STATE_MAXIMIZED_VERT", XCB_ATOM_NONE},
 739     {"_NET_WM_STATE_MAXIMIZED_HORZ", XCB_ATOM_NONE},
 740     {"_NET_WM_STATE_SKIP_PAGER", XCB_ATOM_NONE},
 741     {"_NET_WM_STATE_SKIP_TASKBAR", XCB_ATOM_NONE},
 742     {"_NET_WM_WINDOW_TYPE", XCB_ATOM_NONE},
 743     {"_NET_WM_WINDOW_TYPE_DIALOG", XCB_ATOM_NONE},
 744     {"_NET_WM_WINDOW_TYPE_DOCK", XCB_ATOM_NONE},
 745     {"_NET_WM_WINDOW_TYPE_NORMAL", XCB_ATOM_NONE},
 746     {"_NET_WM_WINDOW_TYPE_SPLASH", XCB_ATOM_NONE},
 747     {"_NET_WM_WINDOW_TYPE_TOOLBAR", XCB_ATOM_NONE},
 748     {"_NET_WM_WINDOW_TYPE_UTILITY", XCB_ATOM_NONE},
 749     {"_SWM_WM_STATE_MANUAL", XCB_ATOM_NONE},
 750 };
 751
 752 /* EWMH source type */
 753 enum {
 754         EWMH_SOURCE_TYPE_NONE = 0,
 755         EWMH_SOURCE_TYPE_NORMAL = 1,
 756         EWMH_SOURCE_TYPE_OTHER = 2,
 757 };
 758
 759 /* Cursors */
 760 enum {
 761         XC_FLEUR,
 762         XC_LEFT_PTR,
 763         XC_BOTTOM_LEFT_CORNER,
 764         XC_BOTTOM_RIGHT_CORNER,
 765         XC_SIZING,
 766         XC_TOP_LEFT_CORNER,
 767         XC_TOP_RIGHT_CORNER,
 768         XC_MAX
 769 };
 770
 771 struct cursors {
 772         char            *name; /* Name used by Xcursor .*/
 773         uint8_t         cf_char; /* cursorfont index. */
 774         xcb_cursor_t    cid;
 775 } cursors[XC_MAX] =     {
 776         {"fleur", XC_fleur, XCB_CURSOR_NONE},
 777         {"left_ptr", XC_left_ptr, XCB_CURSOR_NONE},
 778         {"bottom_left_corner", XC_bottom_left_corner, XCB_CURSOR_NONE},
 779         {"bottom_right_corner", XC_bottom_right_corner, XCB_CURSOR_NONE},
 780         {"sizing", XC_sizing, XCB_CURSOR_NONE},
 781         {"top_left_corner", XC_top_left_corner, XCB_CURSOR_NONE},
 782         {"top_right_corner", XC_top_right_corner, XCB_CURSOR_NONE},
 783 };
 784
 785 #define SWM_SPAWN_OPTIONAL              0x1
 786
 787 /* spawn */
 788 struct spawn_prog {
 789         TAILQ_ENTRY(spawn_prog) entry;
 790         char                    *name;
 791         int                     argc;
 792         char                    **argv;
 793         int                     flags;
 794 };
 795 TAILQ_HEAD(spawn_list, spawn_prog);
 796 struct spawn_list               spawns = TAILQ_HEAD_INITIALIZER(spawns);
 797
 798 /* user/key callable function IDs */
 799 enum keyfuncid {
 800         KF_BAR_TOGGLE,
 801         KF_BAR_TOGGLE_WS,
 802         KF_BUTTON2,
 803         KF_CYCLE_LAYOUT,
 804         KF_FLIP_LAYOUT,
 805         KF_FLOAT_TOGGLE,
 806         KF_FOCUS_MAIN,
 807         KF_FOCUS_NEXT,
 808         KF_FOCUS_PREV,
 809         KF_FOCUS_URGENT,
 810         KF_MAXIMIZE_TOGGLE,
 811         KF_HEIGHT_GROW,
 812         KF_HEIGHT_SHRINK,
 813         KF_ICONIFY,
 814         KF_MASTER_SHRINK,
 815         KF_MASTER_GROW,
 816         KF_MASTER_ADD,
 817         KF_MASTER_DEL,
 818         KF_MOVE_DOWN,
 819         KF_MOVE_LEFT,
 820         KF_MOVE_RIGHT,
 821         KF_MOVE_UP,
 822         KF_MVRG_1,
 823         KF_MVRG_2,
 824         KF_MVRG_3,
 825         KF_MVRG_4,
 826         KF_MVRG_5,
 827         KF_MVRG_6,
 828         KF_MVRG_7,
 829         KF_MVRG_8,
 830         KF_MVRG_9,
 831         KF_MVWS_1,
 832         KF_MVWS_2,
 833         KF_MVWS_3,
 834         KF_MVWS_4,
 835         KF_MVWS_5,
 836         KF_MVWS_6,
 837         KF_MVWS_7,
 838         KF_MVWS_8,
 839         KF_MVWS_9,
 840         KF_MVWS_10,
 841         KF_MVWS_11,
 842         KF_MVWS_12,
 843         KF_MVWS_13,
 844         KF_MVWS_14,
 845         KF_MVWS_15,
 846         KF_MVWS_16,
 847         KF_MVWS_17,
 848         KF_MVWS_18,
 849         KF_MVWS_19,
 850         KF_MVWS_20,
 851         KF_MVWS_21,
 852         KF_MVWS_22,
 853         KF_NAME_WORKSPACE,
 854         KF_QUIT,
 855         KF_RAISE_TOGGLE,
 856         KF_RESTART,
 857         KF_RG_1,
 858         KF_RG_2,
 859         KF_RG_3,
 860         KF_RG_4,
 861         KF_RG_5,
 862         KF_RG_6,
 863         KF_RG_7,
 864         KF_RG_8,
 865         KF_RG_9,
 866         KF_RG_NEXT,
 867         KF_RG_PREV,
 868         KF_SCREEN_NEXT,
 869         KF_SCREEN_PREV,
 870         KF_SEARCH_WIN,
 871         KF_SEARCH_WORKSPACE,
 872         KF_SPAWN_CUSTOM,
 873         KF_STACK_INC,
 874         KF_STACK_DEC,
 875         KF_STACK_RESET,
 876         KF_SWAP_MAIN,
 877         KF_SWAP_NEXT,
 878         KF_SWAP_PREV,
 879         KF_UNICONIFY,
 880         KF_VERSION,
 881         KF_WIDTH_GROW,
 882         KF_WIDTH_SHRINK,
 883         KF_WIND_DEL,
 884         KF_WIND_KILL,
 885         KF_WS_1,
 886         KF_WS_2,
 887         KF_WS_3,
 888         KF_WS_4,
 889         KF_WS_5,
 890         KF_WS_6,
 891         KF_WS_7,
 892         KF_WS_8,
 893         KF_WS_9,
 894         KF_WS_10,
 895         KF_WS_11,
 896         KF_WS_12,
 897         KF_WS_13,
 898         KF_WS_14,
 899         KF_WS_15,
 900         KF_WS_16,
 901         KF_WS_17,
 902         KF_WS_18,
 903         KF_WS_19,
 904         KF_WS_20,
 905         KF_WS_21,
 906         KF_WS_22,
 907         KF_WS_NEXT,
 908         KF_WS_NEXT_ALL,
 909         KF_WS_NEXT_MOVE,
 910         KF_WS_PREV,
 911         KF_WS_PREV_ALL,
 912         KF_WS_PREV_MOVE,
 913         KF_WS_PRIOR,
 914         KF_DUMPWINS, /* MUST BE LAST */
 915         KF_INVALID
 916 };
 917
 918 struct key {
 919         RB_ENTRY(key)           entry;
 920         unsigned int            mod;
 921         KeySym                  keysym;
 922         enum keyfuncid          funcid;
 923         char                    *spawn_name;
 924 };
 925 RB_HEAD(key_tree, key);
 926
 927 /* function prototypes */
 928 void     adjust_font(struct ws_win *);
 929 char    *argsep(char **);
 930 void     bar_cleanup(struct swm_region *);
 931 void     bar_extra_setup(void);
 932 void     bar_extra_stop(void);
 933 int      bar_extra_update(void);
 934 void     bar_fmt(const char *, char *, struct swm_region *, size_t);
 935 void     bar_fmt_expand(char *, size_t);
 936 void     bar_draw(void);
 937 void     bar_print(struct swm_region *, const char *);
 938 void     bar_print_legacy(struct swm_region *, const char *);
 939 void     bar_replace(char *, char *, struct swm_region *, size_t);
 940 void     bar_replace_pad(char *, int *, size_t);
 941 char    *bar_replace_seq(char *, char *, struct swm_region *, size_t *, size_t);
 942 void     bar_setup(struct swm_region *);
 943 void     bar_toggle(struct swm_region *, union arg *);
 944 void     bar_urgent(char *, size_t);
 945 void     bar_window_class(char *, size_t, struct swm_region *);
 946 void     bar_window_class_instance(char *, size_t, struct swm_region *);
 947 void     bar_window_float(char *, size_t, struct swm_region *);
 948 void     bar_window_instance(char *, size_t, struct swm_region *);
 949 void     bar_window_name(char *, size_t, struct swm_region *);
 950 void     bar_window_state(char *, size_t, struct swm_region *);
 951 void     bar_workspace_name(char *, size_t, struct swm_region *);
 952 void     buttonpress(xcb_button_press_event_t *);
 953 void     check_conn(void);
 954 void     clear_keys(void);
 955 int      clear_maximized(struct workspace *);
 956 void     clientmessage(xcb_client_message_event_t *);
 957 void     client_msg(struct ws_win *, xcb_atom_t, xcb_timestamp_t);
 958 int      conf_load(const char *, int);
 959 void     configurenotify(xcb_configure_notify_event_t *);
 960 void     configurerequest(xcb_configure_request_event_t *);
 961 void     config_win(struct ws_win *, xcb_configure_request_event_t *);
 962 void     constrain_window(struct ws_win *, struct swm_geometry *, int *);
 963 int      count_win(struct workspace *, int);
 964 void     cursors_cleanup(void);
 965 void     cursors_load(void);
 966 void     custom_region(const char *);
 967 void     cyclerg(struct swm_region *, union arg *);
 968 void     cyclews(struct swm_region *, union arg *);
 969 void     cycle_layout(struct swm_region *, union arg *);
 970 void     destroynotify(xcb_destroy_notify_event_t *);
 971 void     dumpwins(struct swm_region *, union arg *);
 972 int      enable_wm(void);
 973 void     enternotify(xcb_enter_notify_event_t *);
 974 void     event_drain(uint8_t);
 975 void     event_error(xcb_generic_error_t *);
 976 void     event_handle(xcb_generic_event_t *);
 977 void     ewmh_apply_flags(struct ws_win *, uint32_t);
 978 void     ewmh_autoquirk(struct ws_win *);
 979 void     ewmh_get_desktop_names(void);
 980 void     ewmh_get_wm_state(struct ws_win *);
 981 void     ewmh_update_actions(struct ws_win *);
 982 void     ewmh_update_client_list(void);
 983 void     ewmh_update_current_desktop(void);
 984 void     ewmh_update_desktop_names(void);
 985 void     ewmh_change_wm_state(struct ws_win *, xcb_atom_t, long);
 986 void     ewmh_update_wm_state(struct ws_win *);
 987 char    *expand_tilde(const char *);
 988 void     expose(xcb_expose_event_t *);
 989 void     fake_keypress(struct ws_win *, xcb_keysym_t, uint16_t);
 990 struct pid_e    *find_pid(pid_t);
 991 struct ws_win   *find_unmanaged_window(xcb_window_t);
 992 struct ws_win   *find_window(xcb_window_t);
 993 void     floating_toggle(struct swm_region *, union arg *);
 994 void     focus(struct swm_region *, union arg *);
 995 #ifdef SWM_DEBUG
 996 void     focusin(xcb_focus_in_event_t *);
 997 void     focusout(xcb_focus_out_event_t *);
 998 #endif
 999 void     focus_flush(void);
1000 void     focus_region(struct swm_region *);
1001 void     focusrg(struct swm_region *, union arg *);
1002 void     focus_win(struct ws_win *);
1003 void     fontset_init(void);
1004 void     free_window(struct ws_win *);
1005 xcb_atom_t get_atom_from_string(const char *);
1006 #ifdef SWM_DEBUG
1007 char    *get_atom_name(xcb_atom_t);
1008 #endif
1009 struct ws_win   *get_focus_magic(struct ws_win *);
1010 struct ws_win   *get_focus_prev(struct ws_win *);
1011 #ifdef SWM_DEBUG
1012 char    *get_notify_detail_label(uint8_t);
1013 char    *get_notify_mode_label(uint8_t);
1014 #endif
1015 struct ws_win   *get_pointer_win(xcb_window_t);
1016 struct ws_win   *get_region_focus(struct swm_region *);
1017 int      get_region_index(struct swm_region *);
1018 xcb_screen_t    *get_screen(int);
1019 int      get_screen_count(void);
1020 #ifdef SWM_DEBUG
1021 char    *get_stack_mode_name(uint8_t);
1022 #endif
1023 int32_t  get_swm_ws(xcb_window_t);
1024 char    *get_win_name(xcb_window_t);
1025 void     get_wm_protocols(struct ws_win *);
1026 int      get_ws_idx(xcb_window_t);
1027 uint32_t getstate(xcb_window_t);
1028 void     grabbuttons(struct ws_win *);
1029 void     grabkeys(void);
1030 void     grab_windows(void);
1031 void     iconify(struct swm_region *, union arg *);
1032 int      isxlfd(char *);
1033 void     keypress(xcb_key_press_event_t *);
1034 int      key_cmp(struct key *, struct key *);
1035 void     key_insert(unsigned int, KeySym, enum keyfuncid, const char *);
1036 struct key      *key_lookup(unsigned int, KeySym);
1037 void     key_remove(struct key *);
1038 void     key_replace(struct key *, unsigned int, KeySym, enum keyfuncid,
1039              const char *);
1040 void     kill_bar_extra_atexit(void);
1041 void     kill_refs(struct ws_win *);
1042 #ifdef SWM_DEBUG
1043 void     leavenotify(xcb_leave_notify_event_t *);
1044 #endif
1045 void     load_float_geom(struct ws_win *);
1046 struct ws_win   *manage_window(xcb_window_t, uint16_t);
1047 void     map_window(struct ws_win *);
1048 void     mapnotify(xcb_map_notify_event_t *);
1049 void     mappingnotify(xcb_mapping_notify_event_t *);
1050 void     maprequest(xcb_map_request_event_t *);
1051 void     maximize_toggle(struct swm_region *, union arg *);
1052 void     motionnotify(xcb_motion_notify_event_t *);
1053 void     move(struct ws_win *, union arg *);
1054 void     move_step(struct swm_region *, union arg *);
1055 uint32_t name_to_pixel(int, const char *);
1056 void     name_workspace(struct swm_region *, union arg *);
1057 void     new_region(struct swm_screen *, int, int, int, int);
1058 int      parsekeys(const char *, unsigned int, unsigned int *, KeySym *);
1059 int      parsequirks(const char *, unsigned long *);
1060 int      parse_rgb(const char *, uint16_t *, uint16_t *, uint16_t *);
1061 void     pressbutton(struct swm_region *, union arg *);
1062 void     priorws(struct swm_region *, union arg *);
1063 #ifdef SWM_DEBUG
1064 void     print_win_geom(xcb_window_t);
1065 #endif
1066 void     propertynotify(xcb_property_notify_event_t *);
1067 void     quirk_free(struct quirk *);
1068 void     quirk_insert(const char *, const char *, const char *,unsigned long);
1069 void     quirk_remove(struct quirk *);
1070 void     quirk_replace(struct quirk *, const char *, const char *, const char *,
1071              unsigned long);
1072 void     quit(struct swm_region *, union arg *);
1073 void     raise_toggle(struct swm_region *, union arg *);
1074 void     raise_window(struct ws_win *);
1075 void     region_containment(struct ws_win *, struct swm_region *, int);
1076 struct swm_region       *region_under(struct swm_screen *, int, int);
1077 void     regionize(struct ws_win *, int, int);
1078 void     resize(struct ws_win *, union arg *);
1079 void     resize_step(struct swm_region *, union arg *);
1080 void     restart(struct swm_region *, union arg *);
1081 struct swm_region       *root_to_region(xcb_window_t, int);
1082 void     screenchange(xcb_randr_screen_change_notify_event_t *);
1083 void     scan_xrandr(int);
1084 void     search_do_resp(void);
1085 void     search_resp_name_workspace(const char *, size_t);
1086 void     search_resp_search_window(const char *);
1087 void     search_resp_search_workspace(const char *);
1088 void     search_resp_uniconify(const char *, size_t);
1089 void     search_win(struct swm_region *, union arg *);
1090 void     search_win_cleanup(void);
1091 void     search_workspace(struct swm_region *, union arg *);
1092 void     send_to_rg(struct swm_region *, union arg *);
1093 void     send_to_ws(struct swm_region *, union arg *);
1094 void     set_region(struct swm_region *);
1095 int      setautorun(const char *, const char *, int);
1096 int      setconfbinding(const char *, const char *, int);
1097 int      setconfcolor(const char *, const char *, int);
1098 int      setconfmodkey(const char *, const char *, int);
1099 int      setconfquirk(const char *, const char *, int);
1100 int      setconfregion(const char *, const char *, int);
1101 int      setconfspawn(const char *, const char *, int);
1102 int      setconfvalue(const char *, const char *, int);
1103 void     setkeybinding(unsigned int, KeySym, enum keyfuncid, const char *);
1104 int      setkeymapping(const char *, const char *, int);
1105 int      setlayout(const char *, const char *, int);
1106 void     setquirk(const char *, const char *, const char *,unsigned long);
1107 void     setscreencolor(const char *, int, int);
1108 void     setspawn(const char *, const char *, int);
1109 void     setup_ewmh(void);
1110 void     setup_globals(void);
1111 void     setup_keys(void);
1112 void     setup_quirks(void);
1113 void     setup_screens(void);
1114 void     setup_spawn(void);
1115 void     set_child_transient(struct ws_win *, xcb_window_t *);
1116 void     set_win_state(struct ws_win *, uint16_t);
1117 void     shutdown_cleanup(void);
1118 void     sighdlr(int);
1119 void     socket_setnonblock(int);
1120 void     sort_windows(struct ws_win_list *);
1121 void     spawn(int, union arg *, int);
1122 void     spawn_custom(struct swm_region *, union arg *, const char *);
1123 int      spawn_expand(struct swm_region *, union arg *, const char *, char ***);
1124 void     spawn_insert(const char *, const char *, int);
1125 struct spawn_prog       *spawn_find(const char *);
1126 void     spawn_remove(struct spawn_prog *);
1127 void     spawn_replace(struct spawn_prog *, const char *, const char *, int);
1128 void     spawn_select(struct swm_region *, union arg *, const char *, int *);
1129 void     stack_config(struct swm_region *, union arg *);
1130 void     stack_master(struct workspace *, struct swm_geometry *, int, int);
1131 void     store_float_geom(struct ws_win *);
1132 char    *strdupsafe(const char *);
1133 void     swapwin(struct swm_region *, union arg *);
1134 void     switchws(struct swm_region *, union arg *);
1135 void     teardown_ewmh(void);
1136 void     unescape_selector(char *);
1137 void     unfocus_win(struct ws_win *);
1138 void     uniconify(struct swm_region *, union arg *);
1139 void     unmanage_window(struct ws_win *);
1140 void     unmapnotify(xcb_unmap_notify_event_t *);
1141 void     unmap_all(void);
1142 void     unmap_window(struct ws_win *);
1143 void     updatenumlockmask(void);
1144 void     update_floater(struct ws_win *);
1145 void     update_modkey(unsigned int);
1146 void     update_win_stacking(struct ws_win *);
1147 void     update_window(struct ws_win *);
1148 void     update_wm_state(struct  ws_win *win);
1149 void     validate_spawns(void);
1150 int      validate_win(struct ws_win *);
1151 int      validate_ws(struct workspace *);
1152 void     version(struct swm_region *, union arg *);
1153 void     win_to_ws(struct ws_win *, int, int);
1154 pid_t    window_get_pid(xcb_window_t);
1155 void     wkill(struct swm_region *, union arg *);
1156 void     update_ws_stack(struct workspace *);
1157 void     xft_init(struct swm_region *);
1158 void     _add_startup_exception(const char *, va_list);
1159 void     add_startup_exception(const char *, ...);
1160
1161 RB_PROTOTYPE(key_tree, key, entry, key_cmp);
1162 RB_GENERATE(key_tree, key, entry, key_cmp);
1163 struct key_tree                 keys;
1164
1165 void
1166 cursors_load(void)
1167 {
1168         xcb_font_t      cf = XCB_NONE;
1169         int             i;
1170
1171         for (i = 0; i < LENGTH(cursors); ++i) {
1172                 /* try to load Xcursor first. */
1173                 cursors[i].cid = XcursorLibraryLoadCursor(display,
1174                     cursors[i].name);
1175
1176                 /* fallback to cursorfont. */
1177                 if (cursors[i].cid == XCB_CURSOR_NONE) {
1178                         if (cf == XCB_NONE) {
1179                                 cf = xcb_generate_id(conn);
1180                                 xcb_open_font(conn, cf, strlen("cursor"),
1181                                     "cursor");
1182                         }
1183
1184                         cursors[i].cid = xcb_generate_id(conn);
1185                         xcb_create_glyph_cursor(conn, cursors[i].cid, cf, cf,
1186                             cursors[i].cf_char, cursors[i].cf_char + 1, 0, 0, 0,
1187                             0xffff, 0xffff, 0xffff);
1188
1189                 }
1190         }
1191
1192         if (cf != XCB_NONE)
1193                 xcb_close_font(conn, cf);
1194 }
1195
1196 void
1197 cursors_cleanup(void)
1198 {
1199         int     i;
1200         for (i = 0; i < LENGTH(cursors); ++i)
1201                 xcb_free_cursor(conn, cursors[i].cid);
1202 }
1203
1204 char *
1205 expand_tilde(const char *s)
1206 {
1207         struct passwd           *ppwd;
1208         int                     i;
1209         long                    max;
1210         char                    *user;
1211         const char              *sc = s;
1212         char                    *result;
1213
1214         if (s == NULL)
1215                 errx(1, "expand_tilde: NULL string.");
1216
1217         if (s[0] != '~') {
1218                 result = strdup(sc);
1219                 goto out;
1220         }
1221
1222         ++s;
1223
1224         if ((max = sysconf(_SC_LOGIN_NAME_MAX)) == -1)
1225                 errx(1, "expand_tilde: sysconf");
1226
1227         if ((user = calloc(1, max + 1)) == NULL)
1228                 errx(1, "expand_tilde: calloc");
1229
1230         for (i = 0; s[i] != '/' && s[i] != '\0'; ++i)
1231                 user[i] = s[i];
1232         user[i] = '\0';
1233         s = &s[i];
1234
1235         ppwd = strlen(user) == 0 ? getpwuid(getuid()) : getpwnam(user);
1236         free(user);
1237
1238         if (ppwd == NULL)
1239                 result = strdup(sc);
1240         else
1241                 if (asprintf(&result, "%s%s", ppwd->pw_dir, s) == -1)
1242                         result = NULL;
1243 out:
1244         if (result == NULL)
1245                 errx(1, "expand_tilde: failed to allocate memory.");
1246
1247         return result;
1248 }
1249
1250 int
1251 parse_rgb(const char *rgb, uint16_t *rr, uint16_t *gg, uint16_t *bb)
1252 {
1253         unsigned int    tmpr, tmpg, tmpb;
1254
1255         if (sscanf(rgb, "rgb:%x/%x/%x", &tmpr, &tmpg, &tmpb) != 3)
1256                 return (-1);
1257
1258         *rr = RGB_8_TO_16(tmpr);
1259         *gg = RGB_8_TO_16(tmpg);
1260         *bb = RGB_8_TO_16(tmpb);
1261
1262         return (0);
1263 }
1264
1265 xcb_screen_t *
1266 get_screen(int screen)
1267 {
1268         const xcb_setup_t       *r;
1269         xcb_screen_iterator_t   iter;
1270
1271         if ((r = xcb_get_setup(conn)) == NULL) {
1272                 DNPRINTF(SWM_D_MISC, "get_screen: xcb_get_setup\n");
1273                 check_conn();
1274         }
1275
1276         iter = xcb_setup_roots_iterator(r);
1277         for (; iter.rem; --screen, xcb_screen_next(&iter))
1278                 if (screen == 0)
1279                         return (iter.data);
1280
1281         return (NULL);
1282 }
1283
1284 int
1285 get_screen_count(void)
1286 {
1287         const xcb_setup_t       *r;
1288
1289         if ((r = xcb_get_setup(conn)) == NULL) {
1290                 DNPRINTF(SWM_D_MISC, "get_screen_count: xcb_get_setup\n");
1291                 check_conn();
1292         }
1293
1294         return xcb_setup_roots_length(r);
1295 }
1296
1297 int
1298 get_region_index(struct swm_region *r)
1299 {
1300         struct swm_region       *rr;
1301         int                      ridx = 0;
1302
1303         if (r == NULL)
1304                 return -1;
1305
1306         TAILQ_FOREACH(rr, &r->s->rl, entry) {
1307                 if (rr == r)
1308                         break;
1309                 ++ridx;
1310         }
1311
1312         if (rr == NULL)
1313                 return -1;
1314
1315         return ridx;
1316 }
1317
1318 void
1319 focus_flush(void)
1320 {
1321         if (focus_mode == SWM_FOCUS_DEFAULT)
1322                 event_drain(XCB_ENTER_NOTIFY);
1323         else
1324                 xcb_flush(conn);
1325 }
1326
1327 xcb_atom_t
1328 get_atom_from_string(const char *str)
1329 {
1330         xcb_intern_atom_cookie_t        c;
1331         xcb_intern_atom_reply_t         *r;
1332         xcb_atom_t                      atom;
1333
1334         c = xcb_intern_atom(conn, 0, strlen(str), str);
1335         r = xcb_intern_atom_reply(conn, c, NULL);
1336         if (r) {
1337                 atom = r->atom;
1338                 free(r);
1339
1340                 return (atom);
1341         }
1342
1343         return (XCB_ATOM_NONE);
1344 }
1345
1346 void
1347 get_wm_protocols(struct ws_win *win) {
1348         int                             i;
1349         xcb_icccm_get_wm_protocols_reply_t      wpr;
1350
1351         if (xcb_icccm_get_wm_protocols_reply(conn,
1352             xcb_icccm_get_wm_protocols(conn, win->id, a_prot),
1353             &wpr, NULL)) {
1354                 for (i = 0; i < (int)wpr.atoms_len; i++) {
1355                         if (wpr.atoms[i] == a_takefocus)
1356                                 win->take_focus = 1;
1357                         if (wpr.atoms[i] == a_delete)
1358                                 win->can_delete = 1;
1359                 }
1360                 xcb_icccm_get_wm_protocols_reply_wipe(&wpr);
1361         }
1362 }
1363
1364 void
1365 setup_ewmh(void)
1366 {
1367         xcb_window_t                    root, win;
1368         int                             i, j, num_screens;
1369
1370         for (i = 0; i < LENGTH(ewmh); i++)
1371                 ewmh[i].atom = get_atom_from_string(ewmh[i].name);
1372
1373         num_screens = get_screen_count();
1374         for (i = 0; i < num_screens; i++) {
1375                 root = screens[i].root;
1376
1377                 /* Set up _NET_SUPPORTING_WM_CHECK. */
1378                 win = xcb_generate_id(conn);
1379                 xcb_create_window(conn, XCB_COPY_FROM_PARENT, win, root,
1380                     0, 0, 1, 1, 0, XCB_WINDOW_CLASS_INPUT_OUTPUT,
1381                     XCB_COPY_FROM_PARENT, 0, NULL);
1382
1383                 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, root,
1384                     a_net_wm_check, XCB_ATOM_WINDOW, 32, 1, &win);
1385                 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, win,
1386                     a_net_wm_check, XCB_ATOM_WINDOW, 32, 1, &win);
1387
1388                 /*
1389                  * Impersonate LG3D non-reparenting WM, written by Sun, to
1390                  * workaround a Java GUI rendering issue.
1391                  */
1392                 if (java_workaround)
1393                         xcb_change_property(conn, XCB_PROP_MODE_REPLACE, win,
1394                             ewmh[_NET_WM_NAME].atom, a_utf8_string,
1395                             8, strlen("LG3D"), "LG3D");
1396                 else
1397                         xcb_change_property(conn, XCB_PROP_MODE_REPLACE, win,
1398                             ewmh[_NET_WM_NAME].atom, a_utf8_string,
1399                             8, strlen("spectrwm"), "spectrwm");
1400
1401                 /* Report supported atoms */
1402                 xcb_delete_property(conn, root, a_net_supported);
1403                 for (j = 0; j < LENGTH(ewmh); j++)
1404                         xcb_change_property(conn, XCB_PROP_MODE_APPEND, root,
1405                             a_net_supported, XCB_ATOM_ATOM, 32, 1,
1406                             &ewmh[j].atom);
1407
1408                 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, root,
1409                     ewmh[_NET_NUMBER_OF_DESKTOPS].atom, XCB_ATOM_CARDINAL, 32,
1410                     1, &workspace_limit);
1411         }
1412 }
1413
1414 void
1415 teardown_ewmh(void)
1416 {
1417         int                             i, num_screens;
1418         xcb_window_t                    id;
1419         xcb_get_property_cookie_t       pc;
1420         xcb_get_property_reply_t        *pr;
1421
1422         num_screens = get_screen_count();
1423
1424         for (i = 0; i < num_screens; i++) {
1425                 /* Get the support check window and destroy it */
1426                 pc = xcb_get_property(conn, 0, screens[i].root, a_net_wm_check,
1427                     XCB_ATOM_WINDOW, 0, 1);
1428                 pr = xcb_get_property_reply(conn, pc, NULL);
1429                 if (pr == NULL)
1430                         continue;
1431                 if (pr->format == a_net_wm_check) {
1432                         id = *((xcb_window_t *)xcb_get_property_value(pr));
1433
1434                         xcb_destroy_window(conn, id);
1435                         xcb_delete_property(conn, screens[i].root,
1436                             a_net_wm_check);
1437                         xcb_delete_property(conn, screens[i].root,
1438                             a_net_supported);
1439                 }
1440                 free(pr);
1441         }
1442 }
1443
1444 void
1445 ewmh_autoquirk(struct ws_win *win)
1446 {
1447         uint32_t                i, n;
1448         xcb_atom_t              *type;
1449         xcb_get_property_cookie_t       c;
1450         xcb_get_property_reply_t        *r;
1451
1452         c = xcb_get_property(conn, 0, win->id,
1453             ewmh[_NET_WM_WINDOW_TYPE].atom, XCB_ATOM_ATOM, 0, UINT32_MAX);
1454         r = xcb_get_property_reply(conn, c, NULL);
1455         if (r == NULL)
1456                 return;
1457
1458         type = xcb_get_property_value(r);
1459         n = xcb_get_property_value_length(r) / sizeof(xcb_atom_t);
1460
1461         for (i = 0; i < n; i++) {
1462                 if (type[i] == ewmh[_NET_WM_WINDOW_TYPE_NORMAL].atom)
1463                         break;
1464                 if (type[i] == ewmh[_NET_WM_WINDOW_TYPE_DOCK].atom ||
1465                     type[i] == ewmh[_NET_WM_WINDOW_TYPE_TOOLBAR].atom ||
1466                     type[i] == ewmh[_NET_WM_WINDOW_TYPE_UTILITY].atom) {
1467                         win->quirks = SWM_Q_FLOAT | SWM_Q_ANYWHERE;
1468                         break;
1469                 }
1470                 if (type[i] == ewmh[_NET_WM_WINDOW_TYPE_SPLASH].atom ||
1471                     type[i] == ewmh[_NET_WM_WINDOW_TYPE_DIALOG].atom) {
1472                         win->quirks = SWM_Q_FLOAT;
1473                         break;
1474                 }
1475         }
1476         free(r);
1477 }
1478
1479 void
1480 ewmh_update_actions(struct ws_win *win)
1481 {
1482         xcb_atom_t              actions[SWM_EWMH_ACTION_COUNT_MAX];
1483         int                     n = 0;
1484
1485         if (win == NULL)
1486                 return;
1487
1488         actions[n++] = ewmh[_NET_WM_ACTION_CLOSE].atom;
1489
1490         if (ABOVE(win)) {
1491                 actions[n++] = ewmh[_NET_WM_ACTION_MOVE].atom;
1492                 actions[n++] = ewmh[_NET_WM_ACTION_RESIZE].atom;
1493                 actions[n++] = ewmh[_NET_WM_ACTION_ABOVE].atom;
1494         }
1495
1496         xcb_change_property(conn, XCB_PROP_MODE_REPLACE, win->id,
1497             ewmh[_NET_WM_ALLOWED_ACTIONS].atom, XCB_ATOM_ATOM, 32, 1, actions);
1498 }
1499
1500 #define _NET_WM_STATE_REMOVE    0    /* remove/unset property */
1501 #define _NET_WM_STATE_ADD       1    /* add/set property */
1502 #define _NET_WM_STATE_TOGGLE    2    /* toggle property */
1503
1504 void
1505 ewmh_change_wm_state(struct ws_win *win, xcb_atom_t state, long action)
1506 {
1507         uint32_t                flag = 0;
1508         uint32_t                new_flags;
1509 #ifdef SWM_DEBUG
1510         char                    *name;
1511
1512         name = get_atom_name(state);
1513         DNPRINTF(SWM_D_PROP, "ewmh_change_wm_state: win %#x, state: %s, "
1514             "action: %ld\n", WINID(win), name, action);
1515         free(name);
1516 #endif
1517         if (win == NULL)
1518                 goto out;
1519
1520         if (state == ewmh[_NET_WM_STATE_FULLSCREEN].atom)
1521                 flag = EWMH_F_FULLSCREEN;
1522         else if (state == ewmh[_NET_WM_STATE_ABOVE].atom)
1523                 flag = EWMH_F_ABOVE;
1524         else if (state == ewmh[_NET_WM_STATE_HIDDEN].atom)
1525                 flag = EWMH_F_HIDDEN;
1526         else if (state == ewmh[_NET_WM_STATE_MAXIMIZED_VERT].atom ||
1527             state == ewmh[_NET_WM_STATE_MAXIMIZED_HORZ].atom)
1528                 flag = EWMH_F_MAXIMIZED;
1529         else if (state == ewmh[_SWM_WM_STATE_MANUAL].atom)
1530                 flag = SWM_F_MANUAL;
1531         else if (state == ewmh[_NET_WM_STATE_SKIP_PAGER].atom)
1532                 flag = EWMH_F_SKIP_PAGER;
1533         else if (state == ewmh[_NET_WM_STATE_SKIP_TASKBAR].atom)
1534                 flag = EWMH_F_SKIP_TASKBAR;
1535
1536         /* Disallow unfloating transients. */
1537         if (TRANS(win) && flag == EWMH_F_ABOVE)
1538                 goto out;
1539
1540         new_flags = win->ewmh_flags;
1541
1542         switch (action) {
1543         case _NET_WM_STATE_REMOVE:
1544                 new_flags &= ~flag;
1545                 break;
1546         case _NET_WM_STATE_ADD:
1547                 new_flags |= flag;
1548                 break;
1549         case _NET_WM_STATE_TOGGLE:
1550                 new_flags ^= flag;
1551                 break;
1552         }
1553
1554         ewmh_apply_flags(win, new_flags);
1555
1556 out:
1557         DNPRINTF(SWM_D_PROP, "ewmh_change_wm_state: done.\n");
1558 }
1559
1560 void
1561 ewmh_apply_flags(struct ws_win *win, uint32_t pending)
1562 {
1563         struct workspace        *ws;
1564         uint32_t                changed;
1565
1566         changed = win->ewmh_flags ^ pending;
1567         if (changed == 0)
1568                 return;
1569
1570         DNPRINTF(SWM_D_PROP, "ewmh_apply_flags: pending: %d\n", pending);
1571
1572         win->ewmh_flags = pending;
1573         ws = win->ws;
1574
1575         if (changed & EWMH_F_HIDDEN) {
1576                 if (ICONIC(win)) {
1577                         if (focus_mode != SWM_FOCUS_FOLLOW)
1578                                 ws->focus_pending = get_focus_prev(win);
1579
1580                         unfocus_win(win);
1581                         unmap_window(win);
1582                 } else {
1583                         /* Reload floating geometry in case region changed. */
1584                         if (FLOATING(win))
1585                                 load_float_geom(win);
1586
1587                         /* The window is no longer iconic, prepare focus. */
1588                         if (focus_mode != SWM_FOCUS_FOLLOW)
1589                                 ws->focus_pending = get_focus_magic(win);
1590                         raise_window(win);
1591                 }
1592         }
1593
1594         if (changed & EWMH_F_ABOVE) {
1595                 if (ws->cur_layout != &layouts[SWM_MAX_STACK]) {
1596                         if (ABOVE(win))
1597                                 load_float_geom(win);
1598                         else if (!MAXIMIZED(win))
1599                                 store_float_geom(win);
1600
1601                         win->ewmh_flags &= ~EWMH_F_MAXIMIZED;
1602                         changed &= ~EWMH_F_MAXIMIZED;
1603                         raise_window(win);
1604                 } else {
1605                         /* Revert. */
1606                         win->ewmh_flags ^= EWMH_F_ABOVE & pending;
1607                 }
1608         }
1609
1610         if (changed & EWMH_F_MAXIMIZED) {
1611                 /* VERT and/or HORZ changed. */
1612                 if (ABOVE(win)) {
1613                         if (!MAXIMIZED(win))
1614                                 load_float_geom(win);
1615                         else
1616                                 store_float_geom(win);
1617                 }
1618
1619                 if (MAXIMIZED(win)) {
1620                         if (focus_mode != SWM_FOCUS_FOLLOW &&
1621                             ws->cur_layout != &layouts[SWM_MAX_STACK]) {
1622                                 if (WS_FOCUSED(ws))
1623                                         focus_win(win);
1624                                 else
1625                                         ws->focus_pending = win;
1626                         }
1627                 }
1628                 raise_window(win);
1629         }
1630
1631         if (changed & EWMH_F_FULLSCREEN) {
1632                 if (FULLSCREEN(win)) {
1633                         if (focus_mode != SWM_FOCUS_FOLLOW) {
1634                                 if (WS_FOCUSED(ws))
1635                                         focus_win(win);
1636                                 else
1637                                         ws->focus_pending = win;
1638                         }
1639                 } else {
1640                         load_float_geom(win);
1641                 }
1642
1643                 win->ewmh_flags &= ~EWMH_F_MAXIMIZED;
1644                 raise_window(win);
1645         }
1646
1647         DNPRINTF(SWM_D_PROP, "ewmh_apply_flags: done.\n");
1648 }
1649
1650 void
1651 ewmh_update_wm_state(struct  ws_win *win) {
1652         xcb_atom_t              vals[SWM_EWMH_ACTION_COUNT_MAX];
1653         int                     n = 0;
1654
1655         if (ICONIC(win))
1656                 vals[n++] = ewmh[_NET_WM_STATE_HIDDEN].atom;
1657         if (FULLSCREEN(win))
1658                 vals[n++] = ewmh[_NET_WM_STATE_FULLSCREEN].atom;
1659         if (MAXIMIZED_VERT(win))
1660                 vals[n++] = ewmh[_NET_WM_STATE_MAXIMIZED_VERT].atom;
1661         if (MAXIMIZED_HORZ(win))
1662                 vals[n++] = ewmh[_NET_WM_STATE_MAXIMIZED_HORZ].atom;
1663         if (win->ewmh_flags & EWMH_F_SKIP_PAGER)
1664                 vals[n++] = ewmh[_NET_WM_STATE_SKIP_PAGER].atom;
1665         if (win->ewmh_flags & EWMH_F_SKIP_TASKBAR)
1666                 vals[n++] = ewmh[_NET_WM_STATE_SKIP_TASKBAR].atom;
1667         if (win->ewmh_flags & EWMH_F_ABOVE)
1668                 vals[n++] = ewmh[_NET_WM_STATE_ABOVE].atom;
1669         if (win->ewmh_flags & SWM_F_MANUAL)
1670                 vals[n++] = ewmh[_SWM_WM_STATE_MANUAL].atom;
1671
1672         if (n > 0)
1673                 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, win->id,
1674                     ewmh[_NET_WM_STATE].atom, XCB_ATOM_ATOM, 32, n, vals);
1675         else
1676                 xcb_delete_property(conn, win->id, ewmh[_NET_WM_STATE].atom);
1677 }
1678
1679 void
1680 ewmh_get_wm_state(struct ws_win *win)
1681 {
1682         xcb_atom_t                      *states;
1683         xcb_get_property_cookie_t       c;
1684         xcb_get_property_reply_t        *r;
1685         int                             i, n;
1686
1687         if (win == NULL)
1688                 return;
1689
1690         win->ewmh_flags = 0;
1691
1692         c = xcb_get_property(conn, 0, win->id, ewmh[_NET_WM_STATE].atom,
1693             XCB_ATOM_ATOM, 0, UINT32_MAX);
1694         r = xcb_get_property_reply(conn, c, NULL);
1695         if (r == NULL)
1696                 return;
1697
1698         states = xcb_get_property_value(r);
1699         n = xcb_get_property_value_length(r) / sizeof(xcb_atom_t);
1700
1701         for (i = 0; i < n; i++)
1702                 ewmh_change_wm_state(win, states[i], _NET_WM_STATE_ADD);
1703
1704         free(r);
1705 }
1706
1707 /* events */
1708 #ifdef SWM_DEBUG
1709 void
1710 dumpwins(struct swm_region *r, union arg *args)
1711 {
1712         struct ws_win                           *win;
1713         uint32_t                                state;
1714         xcb_get_window_attributes_cookie_t      c;
1715         xcb_get_window_attributes_reply_t       *wa;
1716
1717         /* suppress unused warning since var is needed */
1718         (void)args;
1719
1720         if (r->ws == NULL) {
1721                 DPRINTF("dumpwins: invalid workspace\n");
1722                 return;
1723         }
1724
1725         DPRINTF("=== managed window list ws %02d ===\n", r->ws->idx);
1726         TAILQ_FOREACH(win, &r->ws->winlist, entry) {
1727                 state = getstate(win->id);
1728                 c = xcb_get_window_attributes(conn, win->id);
1729                 wa = xcb_get_window_attributes_reply(conn, c, NULL);
1730                 if (wa) {
1731                         DPRINTF("win %#x, map_state: %d, state: %u, "
1732                             "transient: %#x\n", win->id, wa->map_state,
1733                             state, win->transient);
1734                         free(wa);
1735                 } else
1736                         DPRINTF("win %#x, failed xcb_get_window_attributes\n",
1737                             win->id);
1738         }
1739
1740         DPRINTF("===== unmanaged window list =====\n");
1741         TAILQ_FOREACH(win, &r->ws->unmanagedlist, entry) {
1742                 state = getstate(win->id);
1743                 c = xcb_get_window_attributes(conn, win->id);
1744                 wa = xcb_get_window_attributes_reply(conn, c, NULL);
1745                 if (wa) {
1746                         DPRINTF("win %#x, map_state: %d, state: %u, "
1747                             "transient: %#x\n", win->id, wa->map_state,
1748                             state, win->transient);
1749                         free(wa);
1750                 } else
1751                         DPRINTF("win %#x, failed xcb_get_window_attributes\n",
1752                             win->id);
1753         }
1754
1755         DPRINTF("=================================\n");
1756 }
1757 #else
1758 void
1759 dumpwins(struct swm_region *r, union arg *s)
1760 {
1761         (void)r;
1762         (void)s;
1763 }
1764 #endif /* SWM_DEBUG */
1765
1766 void
1767 sighdlr(int sig)
1768 {
1769         int                     saved_errno, status;
1770         pid_t                   pid;
1771
1772         saved_errno = errno;
1773
1774         switch (sig) {
1775         case SIGCHLD:
1776                 while ((pid = waitpid(WAIT_ANY, &status, WNOHANG)) != 0) {
1777                         if (pid == -1) {
1778                                 if (errno == EINTR)
1779                                         continue;
1780 #ifdef SWM_DEBUG
1781                                 if (errno != ECHILD)
1782                                         warn("sighdlr: waitpid");
1783 #endif /* SWM_DEBUG */
1784                                 break;
1785                         }
1786                         if (pid == searchpid)
1787                                 search_resp = 1;
1788
1789 #ifdef SWM_DEBUG
1790                         if (WIFEXITED(status)) {
1791                                 if (WEXITSTATUS(status) != 0)
1792                                         warnx("sighdlr: child exit status: %d",
1793                                             WEXITSTATUS(status));
1794                         } else
1795                                 warnx("sighdlr: child is terminated "
1796                                     "abnormally");
1797 #endif /* SWM_DEBUG */
1798                 }
1799                 break;
1800
1801         case SIGHUP:
1802                 restart_wm = 1;
1803                 break;
1804         case SIGINT:
1805         case SIGTERM:
1806         case SIGQUIT:
1807                 running = 0;
1808                 break;
1809         }
1810
1811         errno = saved_errno;
1812 }
1813
1814 struct pid_e *
1815 find_pid(pid_t pid)
1816 {
1817         struct pid_e            *p = NULL;
1818
1819         DNPRINTF(SWM_D_MISC, "find_pid: %d\n", pid);
1820
1821         if (pid == 0)
1822                 return (NULL);
1823
1824         TAILQ_FOREACH(p, &pidlist, entry) {
1825                 if (p->pid == pid)
1826                         return (p);
1827         }
1828
1829         return (NULL);
1830 }
1831
1832 uint32_t
1833 name_to_pixel(int sidx, const char *colorname)
1834 {
1835         uint32_t                        result = 0;
1836         char                            cname[32] = "#";
1837         xcb_screen_t                    *screen;
1838         xcb_colormap_t                  cmap;
1839         xcb_alloc_color_reply_t         *cr;
1840         xcb_alloc_named_color_reply_t   *nr;
1841         uint16_t                        rr, gg, bb;
1842
1843         screen = get_screen(sidx);
1844         cmap = screen->default_colormap;
1845
1846         /* color is in format rgb://rr/gg/bb */
1847         if (strncmp(colorname, "rgb:", 4) == 0) {
1848                 if (parse_rgb(colorname, &rr, &gg, &bb) == -1)
1849                         warnx("could not parse rgb %s", colorname);
1850                 else {
1851                         cr = xcb_alloc_color_reply(conn,
1852                             xcb_alloc_color(conn, cmap, rr, gg, bb),
1853                             NULL);
1854                         if (cr) {
1855                                 result = cr->pixel;
1856                                 free(cr);
1857                         } else
1858                                 warnx("color '%s' not found", colorname);
1859                 }
1860         } else {
1861                 nr = xcb_alloc_named_color_reply(conn,
1862                         xcb_alloc_named_color(conn, cmap, strlen(colorname),
1863                             colorname), NULL);
1864                 if (nr == NULL) {
1865                         strlcat(cname, colorname + 2, sizeof cname - 1);
1866                         nr = xcb_alloc_named_color_reply(conn,
1867                             xcb_alloc_named_color(conn, cmap, strlen(cname),
1868                             cname), NULL);
1869                 }
1870                 if (nr) {
1871                         result = nr->pixel;
1872                         free(nr);
1873                 } else
1874                         warnx("color '%s' not found", colorname);
1875         }
1876
1877         return (result);
1878 }
1879
1880 void
1881 setscreencolor(const char *val, int i, int c)
1882 {
1883         int     num_screens;
1884
1885         num_screens = get_screen_count();
1886         if (i > 0 && i <= num_screens) {
1887                 screens[i - 1].c[c].pixel = name_to_pixel(i - 1, val);
1888                 free(screens[i - 1].c[c].name);
1889                 if ((screens[i - 1].c[c].name = strdup(val)) == NULL)
1890                         err(1, "strdup");
1891         } else if (i == -1) {
1892                 for (i = 0; i < num_screens; i++) {
1893                         screens[i].c[c].pixel = name_to_pixel(0, val);
1894                         free(screens[i].c[c].name);
1895                         if ((screens[i].c[c].name = strdup(val)) == NULL)
1896                                 err(1, "strdup");
1897                 }
1898         } else
1899                 errx(1, "invalid screen index: %d out of bounds (maximum %d)",
1900                     i, num_screens);
1901 }
1902
1903 void
1904 fancy_stacker(struct workspace *ws)
1905 {
1906         strlcpy(ws->stacker, "[   ]", sizeof ws->stacker);
1907         if (ws->cur_layout->l_stack == vertical_stack)
1908                 snprintf(ws->stacker, sizeof ws->stacker,
1909                     ws->l_state.vertical_flip ? "[%d>%d]" : "[%d|%d]",
1910                     ws->l_state.vertical_mwin, ws->l_state.vertical_stacks);
1911         else if (ws->cur_layout->l_stack == horizontal_stack)
1912                 snprintf(ws->stacker, sizeof ws->stacker,
1913                     ws->l_state.horizontal_flip ? "[%dv%d]" : "[%d-%d]",
1914                     ws->l_state.horizontal_mwin, ws->l_state.horizontal_stacks);
1915 }
1916
1917 void
1918 plain_stacker(struct workspace *ws)
1919 {
1920         strlcpy(ws->stacker, "[ ]", sizeof ws->stacker);
1921         if (ws->cur_layout->l_stack == vertical_stack)
1922                 strlcpy(ws->stacker, ws->l_state.vertical_flip ? "[>]" : "[|]",
1923                     sizeof ws->stacker);
1924         else if (ws->cur_layout->l_stack == horizontal_stack)
1925                 strlcpy(ws->stacker, ws->l_state.horizontal_flip ? "[v]" : "[-]",
1926                     sizeof ws->stacker);
1927 }
1928
1929 void
1930 custom_region(const char *val)
1931 {
1932         unsigned int                    x, y, w, h;
1933         int                             sidx, num_screens;
1934         xcb_screen_t                    *screen;
1935
1936         num_screens = get_screen_count();
1937         if (sscanf(val, "screen[%d]:%ux%u+%u+%u", &sidx, &w, &h, &x, &y) != 5)
1938                 errx(1, "invalid custom region, "
1939                     "should be 'screen[<n>]:<n>x<n>+<n>+<n>");
1940         if (sidx < 1 || sidx > num_screens)
1941                 errx(1, "invalid screen index: %d out of bounds (maximum %d)",
1942                     sidx, num_screens);
1943         sidx--;
1944
1945         if ((screen = get_screen(sidx)) == NULL)
1946                 errx(1, "ERROR: can't get screen %d.", sidx);
1947
1948         if (w < 1 || h < 1)
1949                 errx(1, "region %ux%u+%u+%u too small", w, h, x, y);
1950
1951         if (x > screen->width_in_pixels ||
1952             y > screen->height_in_pixels ||
1953             w + x > screen->width_in_pixels ||
1954             h + y > screen->height_in_pixels) {
1955                 warnx("ignoring region %ux%u+%u+%u - not within screen "
1956                     "boundaries (%ux%u)", w, h, x, y,
1957                     screen->width_in_pixels, screen->height_in_pixels);
1958                 return;
1959         }
1960
1961         new_region(&screens[sidx], x, y, w, h);
1962 }
1963
1964 void
1965 socket_setnonblock(int fd)
1966 {
1967         int                     flags;
1968
1969         if ((flags = fcntl(fd, F_GETFL, 0)) == -1)
1970                 err(1, "fcntl F_GETFL");
1971         flags |= O_NONBLOCK;
1972         if ((flags = fcntl(fd, F_SETFL, flags)) == -1)
1973                 err(1, "fcntl F_SETFL");
1974 }
1975
1976 void
1977 bar_print_legacy(struct swm_region *r, const char *s)
1978 {
1979         xcb_rectangle_t         rect;
1980         uint32_t                gcv[1];
1981         XGCValues               gcvd;
1982         int                     x = 0;
1983         size_t                  len;
1984         XRectangle              ibox, lbox;
1985         GC                      draw;
1986
1987         len = strlen(s);
1988         XmbTextExtents(bar_fs, s, len, &ibox, &lbox);
1989
1990         switch (bar_justify) {
1991         case SWM_BAR_JUSTIFY_LEFT:
1992                 x = SWM_BAR_OFFSET;
1993                 break;
1994         case SWM_BAR_JUSTIFY_CENTER:
1995                 x = (WIDTH(r) - lbox.width) / 2;
1996                 break;
1997         case SWM_BAR_JUSTIFY_RIGHT:
1998                 x = WIDTH(r) - lbox.width - SWM_BAR_OFFSET;
1999                 break;
2000         }
2001
2002         if (x < SWM_BAR_OFFSET)
2003                 x = SWM_BAR_OFFSET;
2004
2005         rect.x = 0;
2006         rect.y = 0;
2007         rect.width = WIDTH(r->bar);
2008         rect.height = HEIGHT(r->bar);
2009
2010         /* clear back buffer */
2011         gcv[0] = r->s->c[SWM_S_COLOR_BAR].pixel;
2012         xcb_change_gc(conn, r->s->bar_gc, XCB_GC_FOREGROUND, gcv);
2013         xcb_poly_fill_rectangle(conn, r->bar->buffer, r->s->bar_gc, 1, &rect);
2014
2015         /* draw back buffer */
2016         gcvd.graphics_exposures = 0;
2017         draw = XCreateGC(display, r->bar->buffer, GCGraphicsExposures, &gcvd);
2018         XSetForeground(display, draw, r->s->c[SWM_S_COLOR_BAR_FONT].pixel);
2019         DRAWSTRING(display, r->bar->buffer, bar_fs, draw,
2020             x, (bar_fs_extents->max_logical_extent.height - lbox.height) / 2 -
2021             lbox.y, s, len);
2022         XFreeGC(display, draw);
2023
2024         /* blt */
2025         xcb_copy_area(conn, r->bar->buffer, r->bar->id, r->s->bar_gc, 0, 0,
2026             0, 0, WIDTH(r->bar), HEIGHT(r->bar));
2027 }
2028
2029 void
2030 bar_print(struct swm_region *r, const char *s)
2031 {
2032         size_t                          len;
2033         xcb_rectangle_t                 rect;
2034         uint32_t                        gcv[1];
2035         int32_t                         x = 0;
2036         XGlyphInfo                      info;
2037         XftDraw                         *draw;
2038
2039         len = strlen(s);
2040
2041         XftTextExtentsUtf8(display, bar_font, (FcChar8 *)s, len, &info);
2042
2043         switch (bar_justify) {
2044         case SWM_BAR_JUSTIFY_LEFT:
2045                 x = SWM_BAR_OFFSET;
2046                 break;
2047         case SWM_BAR_JUSTIFY_CENTER:
2048                 x = (WIDTH(r) - info.width) / 2;
2049                 break;
2050         case SWM_BAR_JUSTIFY_RIGHT:
2051                 x = WIDTH(r) - info.width - SWM_BAR_OFFSET;
2052                 break;
2053         }
2054
2055         if (x < SWM_BAR_OFFSET)
2056                 x = SWM_BAR_OFFSET;
2057
2058         rect.x = 0;
2059         rect.y = 0;
2060         rect.width = WIDTH(r->bar);
2061         rect.height = HEIGHT(r->bar);
2062
2063         /* clear back buffer */
2064         gcv[0] = r->s->c[SWM_S_COLOR_BAR].pixel;
2065         xcb_change_gc(conn, r->s->bar_gc, XCB_GC_FOREGROUND, gcv);
2066         xcb_poly_fill_rectangle(conn, r->bar->buffer, r->s->bar_gc, 1, &rect);
2067
2068         /* draw back buffer */
2069         draw = XftDrawCreate(display, r->bar->buffer,
2070             DefaultVisual(display, r->s->idx),
2071             DefaultColormap(display, r->s->idx));
2072
2073         XftDrawStringUtf8(draw, &bar_font_color, bar_font, x,
2074             (HEIGHT(r->bar) + bar_font->height) / 2 - bar_font->descent,
2075             (FcChar8 *)s, len);
2076
2077         XftDrawDestroy(draw);
2078
2079         /* blt */
2080         xcb_copy_area(conn, r->bar->buffer, r->bar->id, r->s->bar_gc, 0, 0,
2081             0, 0, WIDTH(r->bar), HEIGHT(r->bar));
2082 }
2083
2084 void
2085 bar_extra_stop(void)
2086 {
2087         if (bar_pipe[0]) {
2088                 close(bar_pipe[0]);
2089                 bzero(bar_pipe, sizeof bar_pipe);
2090         }
2091         if (bar_pid) {
2092                 kill(bar_pid, SIGTERM);
2093                 bar_pid = 0;
2094         }
2095         strlcpy(bar_ext, "", sizeof bar_ext);
2096         bar_extra = 0;
2097 }
2098
2099 void
2100 bar_window_class(char *s, size_t sz, struct swm_region *r)
2101 {
2102         if (r == NULL || r->ws == NULL || r->ws->focus == NULL)
2103                 return;
2104         if (r->ws->focus->ch.class_name != NULL)
2105                 strlcat(s, r->ws->focus->ch.class_name, sz);
2106 }
2107
2108 void
2109 bar_window_instance(char *s, size_t sz, struct swm_region *r)
2110 {
2111         if (r == NULL || r->ws == NULL || r->ws->focus == NULL)
2112                 return;
2113         if (r->ws->focus->ch.instance_name != NULL)
2114                 strlcat(s, r->ws->focus->ch.instance_name, sz);
2115 }
2116
2117 void
2118 bar_window_class_instance(char *s, size_t sz, struct swm_region *r)
2119 {
2120         if (r == NULL || r->ws == NULL || r->ws->focus == NULL)
2121                 return;
2122
2123         bar_window_class(s, sz, r);
2124         strlcat(s, ":", sz);
2125         bar_window_instance(s, sz, r);
2126 }
2127
2128 void
2129 bar_window_state(char *s, size_t sz, struct swm_region *r)
2130 {
2131         if (r == NULL || r ->ws == NULL || r->ws->focus == NULL)
2132                 return;
2133         if (MAXIMIZED(r->ws->focus))
2134                 strlcat(s, "(m)", sz);
2135         else if (ABOVE(r->ws->focus))
2136                 strlcat(s, "(f)", sz);
2137 }
2138
2139 void
2140 bar_window_name(char *s, size_t sz, struct swm_region *r)
2141 {
2142         char            *title;
2143
2144         if (r == NULL || r->ws == NULL || r->ws->focus == NULL)
2145                 return;
2146
2147         title = get_win_name(r->ws->focus->id);
2148         strlcat(s, title, sz);
2149         free(title);
2150 }
2151
2152 void
2153 bar_urgent(char *s, size_t sz)
2154 {
2155         struct ws_win           *win;
2156         int                     i, j, num_screens;
2157         int                     urgent[SWM_WS_MAX];
2158         char                    b[8];
2159         xcb_get_property_cookie_t       c;
2160         xcb_icccm_wm_hints_t    hints;
2161
2162         for (i = 0; i < workspace_limit; i++)
2163                 urgent[i] = 0;
2164
2165         num_screens = get_screen_count();
2166         for (i = 0; i < num_screens; i++)
2167                 for (j = 0; j < workspace_limit; j++)
2168                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry) {
2169                                 c = xcb_icccm_get_wm_hints(conn, win->id);
2170                                 if (xcb_icccm_get_wm_hints_reply(conn, c,
2171                                     &hints, NULL) == 0)
2172                                         continue;
2173                                 if (hints.flags & XCB_ICCCM_WM_HINT_X_URGENCY)
2174                                         urgent[j] = 1;
2175                         }
2176
2177         for (i = 0; i < workspace_limit; i++) {
2178                 if (urgent[i])
2179                         snprintf(b, sizeof b, "%d ", i + 1);
2180                 else
2181                         snprintf(b, sizeof b, "- ");
2182                 strlcat(s, b, sz);
2183         }
2184 }
2185
2186 void
2187 bar_workspace_name(char *s, size_t sz, struct swm_region *r)
2188 {
2189         if (r == NULL || r->ws == NULL)
2190                 return;
2191         if (r->ws->name != NULL)
2192                 strlcat(s, r->ws->name, sz);
2193 }
2194
2195 /* build the default bar format according to the defined enabled options */
2196 void
2197 bar_fmt(const char *fmtexp, char *fmtnew, struct swm_region *r, size_t sz)
2198 {
2199         struct ws_win           *w;
2200
2201         /* if format provided, just copy the buffers */
2202         if (bar_format != NULL) {
2203                 strlcpy(fmtnew, fmtexp, sz);
2204                 return;
2205         }
2206
2207         /* reset the output buffer */
2208         *fmtnew = '\0';
2209
2210         strlcat(fmtnew, "+N:+I ", sz);
2211         if (stack_enabled)
2212                 strlcat(fmtnew, "+S", sz);
2213         strlcat(fmtnew, " ", sz);
2214
2215         /* only show the workspace name if there's actually one */
2216         if (r != NULL && r->ws != NULL && r->ws->name != NULL)
2217                 strlcat(fmtnew, "<+D>", sz);
2218
2219         /* If enabled, only show the iconic count if there are iconic wins. */
2220         if (iconic_enabled && r != NULL && r->ws != NULL)
2221                 TAILQ_FOREACH(w, &r->ws->winlist, entry)
2222                         if (ICONIC(w)) {
2223                                 strlcat(fmtnew, "{+M}", sz);
2224                                 break;
2225                         }
2226
2227         strlcat(fmtnew, "+3<", sz);
2228
2229         if (clock_enabled) {
2230                 strlcat(fmtnew, fmtexp, sz);
2231                 strlcat(fmtnew, "+4<", sz);
2232         }
2233
2234         /* bar_urgent already adds the space before the last asterisk */
2235         if (urgent_enabled)
2236                 strlcat(fmtnew, "* +U*+4<", sz);
2237
2238         if (window_class_enabled) {
2239                 strlcat(fmtnew, "+C", sz);
2240                 if (!window_instance_enabled)
2241                         strlcat(fmtnew, "+4<", sz);
2242         }
2243
2244         /* checks needed by the colon and floating strlcat(3) calls below */
2245         if (r != NULL && r->ws != NULL && r->ws->focus != NULL) {
2246                 if (window_instance_enabled) {
2247                         if (window_class_enabled)
2248                                 strlcat(fmtnew, ":", sz);
2249                         strlcat(fmtnew, "+T+4<", sz);
2250                 }
2251                 if (window_name_enabled) {
2252                         if (ABOVE(r->ws->focus) || MAXIMIZED(r->ws->focus))
2253                                 strlcat(fmtnew, "+F ", sz);
2254                         strlcat(fmtnew, "+64W ", sz);
2255                 }
2256         }
2257
2258         /* finally add the action script output and the version */
2259         strlcat(fmtnew, "+4<+A+4<+V", sz);
2260 }
2261
2262 void
2263 bar_replace_pad(char *tmp, int *limit, size_t sz)
2264 {
2265         /* special case; no limit given, pad one space, instead */
2266         if (*limit == (int)sz - 1)
2267                 *limit = 1;
2268         snprintf(tmp, sz, "%*s", *limit, " ");
2269 }
2270
2271 /* replaces the bar format character sequences (like in tmux(1)) */
2272 char *
2273 bar_replace_seq(char *fmt, char *fmtrep, struct swm_region *r, size_t *offrep,
2274     size_t sz)
2275 {
2276         struct ws_win           *w;
2277         char                    *ptr;
2278         char                    tmp[SWM_BAR_MAX];
2279         int                     limit, size, count;
2280         size_t                  len;
2281
2282         /* reset strlcat(3) buffer */
2283         *tmp = '\0';
2284
2285         /* get number, if any */
2286         fmt++;
2287         size = 0;
2288         if (sscanf(fmt, "%d%n", &limit, &size) != 1)
2289                 limit = sizeof tmp - 1;
2290         if (limit <= 0 || limit >= (int)sizeof tmp)
2291                 limit = sizeof tmp - 1;
2292
2293         /* there is nothing to replace (ie EOL) */
2294         fmt += size;
2295         if (*fmt == '\0')
2296                 return (fmt);
2297
2298         switch (*fmt) {
2299         case '<':
2300                 bar_replace_pad(tmp, &limit, sizeof tmp);
2301                 break;
2302         case 'A':
2303                 snprintf(tmp, sizeof tmp, "%s", bar_ext);
2304                 break;
2305         case 'C':
2306                 bar_window_class(tmp, sizeof tmp, r);
2307                 break;
2308         case 'D':
2309                 bar_workspace_name(tmp, sizeof tmp, r);
2310                 break;
2311         case 'F':
2312                 bar_window_state(tmp, sizeof tmp, r);
2313                 break;
2314         case 'I':
2315                 snprintf(tmp, sizeof tmp, "%d", r->ws->idx + 1);
2316                 break;
2317         case 'M':
2318                 count = 0;
2319                 TAILQ_FOREACH(w, &r->ws->winlist, entry)
2320                         if (ICONIC(w))
2321                                 ++count;
2322
2323                 snprintf(tmp, sizeof tmp, "%d", count);
2324                 break;
2325         case 'N':
2326                 snprintf(tmp, sizeof tmp, "%d", r->s->idx + 1);
2327                 break;
2328         case 'P':
2329                 bar_window_class_instance(tmp, sizeof tmp, r);
2330                 break;
2331         case 'S':
2332                 snprintf(tmp, sizeof tmp, "%s", r->ws->stacker);
2333                 break;
2334         case 'T':
2335                 bar_window_instance(tmp, sizeof tmp, r);
2336                 break;
2337         case 'U':
2338                 bar_urgent(tmp, sizeof tmp);
2339                 break;
2340         case 'V':
2341                 snprintf(tmp, sizeof tmp, "%s", bar_vertext);
2342                 break;
2343         case 'W':
2344                 bar_window_name(tmp, sizeof tmp, r);
2345                 break;
2346         default:
2347                 /* unknown character sequence; copy as-is */
2348                 snprintf(tmp, sizeof tmp, "+%c", *fmt);
2349                 break;
2350         }
2351
2352         len = strlen(tmp);
2353         ptr = tmp;
2354         if ((int)len < limit)
2355                 limit = len;
2356         while (limit-- > 0) {
2357                 if (*offrep >= sz - 1)
2358                         break;
2359                 fmtrep[(*offrep)++] = *ptr++;
2360         }
2361
2362         fmt++;
2363         return (fmt);
2364 }
2365
2366 void
2367 bar_replace(char *fmt, char *fmtrep, struct swm_region *r, size_t sz)
2368 {
2369         size_t                  off;
2370
2371         off = 0;
2372         while (*fmt != '\0') {
2373                 if (*fmt != '+') {
2374                         /* skip ordinary characters */
2375                         if (off >= sz - 1)
2376                                 break;
2377                         fmtrep[off++] = *fmt++;
2378                         continue;
2379                 }
2380
2381                 /* character sequence found; replace it */
2382                 fmt = bar_replace_seq(fmt, fmtrep, r, &off, sz);
2383                 if (off >= sz - 1)
2384                         break;
2385         }
2386
2387         fmtrep[off] = '\0';
2388 }
2389
2390 void
2391 bar_fmt_expand(char *fmtexp, size_t sz)
2392 {
2393         char                    *fmt = NULL;
2394         size_t                  len;
2395         struct tm               tm;
2396         time_t                  tmt;
2397
2398         /* start by grabbing the current time and date */
2399         time(&tmt);
2400         localtime_r(&tmt, &tm);
2401
2402         /* figure out what to expand */
2403         if (bar_format != NULL)
2404                 fmt = bar_format;
2405         else if (bar_format == NULL && clock_enabled)
2406                 fmt = clock_format;
2407         /* if nothing to expand bail out */
2408         if (fmt == NULL) {
2409                 *fmtexp = '\0';
2410                 return;
2411         }
2412
2413         /* copy as-is, just in case the format shouldn't be expanded below */
2414         strlcpy(fmtexp, fmt, sz);
2415         /* finally pass the string through strftime(3) */
2416 #ifndef SWM_DENY_CLOCK_FORMAT
2417         if ((len = strftime(fmtexp, sz, fmt, &tm)) == 0)
2418                 warnx("format too long");
2419         fmtexp[len] = '\0';
2420 #endif
2421 }
2422
2423 /* Redraws the bar; need to follow with xcb_flush() or focus_flush(). */
2424 void
2425 bar_draw(void)
2426 {
2427         char                    fmtexp[SWM_BAR_MAX], fmtnew[SWM_BAR_MAX];
2428         char                    fmtrep[SWM_BAR_MAX];
2429         int                     i, num_screens;
2430         struct swm_region       *r;
2431
2432         /* expand the format by first passing it through strftime(3) */
2433         bar_fmt_expand(fmtexp, sizeof fmtexp);
2434
2435         num_screens = get_screen_count();
2436         for (i = 0; i < num_screens; i++) {
2437                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
2438                         if (r->bar == NULL)
2439                                 continue;
2440
2441                         if (bar_enabled && r->ws->bar_enabled)
2442                                 xcb_map_window(conn, r->bar->id);
2443                         else {
2444                                 xcb_unmap_window(conn, r->bar->id);
2445                                 continue;
2446                         }
2447
2448                         if (startup_exception)
2449                                 snprintf(fmtrep, sizeof fmtrep, "total "
2450                                     "exceptions: %d, first exception: %s",
2451                                     nr_exceptions,
2452                                     startup_exception);
2453                         else {
2454                                 bar_fmt(fmtexp, fmtnew, r, sizeof fmtnew);
2455                                 bar_replace(fmtnew, fmtrep, r, sizeof fmtrep);
2456                         }
2457                         if (bar_font_legacy)
2458                                 bar_print_legacy(r, fmtrep);
2459                         else
2460                                 bar_print(r, fmtrep);
2461                 }
2462         }
2463 }
2464
2465 /*
2466  * Reads external script output; call when stdin is readable.
2467  * Returns 1 if bar_ext was updated; otherwise 0.
2468  */
2469 int
2470 bar_extra_update(void)
2471 {
2472         size_t          len;
2473         char            b[SWM_BAR_MAX];
2474         int             changed = 0;
2475
2476         if (!bar_extra)
2477                 return changed;
2478
2479         while (fgets(b, sizeof(b), stdin) != NULL) {
2480                 if (bar_enabled) {
2481                         len = strlen(b);
2482                         if (b[len - 1] == '\n') {
2483                                 /* Remove newline. */
2484                                 b[--len] = '\0';
2485
2486                                 /* "Clear" bar_ext. */
2487                                 bar_ext[0] = '\0';
2488
2489                                 /* Flush buffered output. */
2490                                 strlcpy(bar_ext, bar_ext_buf, sizeof(bar_ext));
2491                                 bar_ext_buf[0] = '\0';
2492
2493                                 /* Append new output to bar. */
2494                                 strlcat(bar_ext, b, sizeof(bar_ext));
2495
2496                                 changed = 1;
2497                         } else {
2498                                 /* Buffer output. */
2499                                 strlcat(bar_ext_buf, b, sizeof(bar_ext_buf));
2500                         }
2501                 }
2502         }
2503
2504         if (errno != EAGAIN) {
2505                 warn("bar_action failed");
2506                 bar_extra_stop();
2507                 changed = 1;
2508         }
2509
2510         return changed;
2511 }
2512
2513 void
2514 bar_toggle(struct swm_region *r, union arg *args)
2515 {
2516         struct swm_region       *tmpr;
2517         int                     i, num_screens;
2518
2519         /* suppress unused warnings since vars are needed */
2520         (void)r;
2521         (void)args;
2522
2523         DNPRINTF(SWM_D_BAR, "bar_toggle\n");
2524
2525         switch (args->id) {
2526         case SWM_ARG_ID_BAR_TOGGLE_WS:
2527                 /* Only change if master switch is enabled. */
2528                 if (bar_enabled)
2529                         r->ws->bar_enabled = !r->ws->bar_enabled;
2530                 else
2531                         bar_enabled = r->ws->bar_enabled = 1;
2532                 break;
2533         case SWM_ARG_ID_BAR_TOGGLE:
2534                 bar_enabled = !bar_enabled;
2535                 break;
2536         }
2537
2538         /* update bars as necessary */
2539         num_screens = get_screen_count();
2540         for (i = 0; i < num_screens; i++)
2541                 TAILQ_FOREACH(tmpr, &screens[i].rl, entry)
2542                         if (tmpr->bar) {
2543                                 if (bar_enabled && tmpr->ws->bar_enabled)
2544                                         xcb_map_window(conn, tmpr->bar->id);
2545                                 else
2546                                         xcb_unmap_window(conn, tmpr->bar->id);
2547                         }
2548
2549         stack();
2550
2551         /* must be after stack */
2552         bar_draw();
2553
2554         focus_flush();
2555 }
2556
2557 void
2558 bar_extra_setup(void)
2559 {
2560         /* do this here because the conf file is in memory */
2561         if (!bar_extra && bar_argv[0]) {
2562                 /* launch external status app */
2563                 bar_extra = 1;
2564                 if (pipe(bar_pipe) == -1)
2565                         err(1, "pipe error");
2566                 socket_setnonblock(bar_pipe[0]);
2567                 socket_setnonblock(bar_pipe[1]); /* XXX hmmm, really? */
2568
2569                 /* Set stdin to read from the pipe. */
2570                 if (dup2(bar_pipe[0], STDIN_FILENO) == -1)
2571                         err(1, "dup2");
2572
2573                 /* Set stdout to write to the pipe. */
2574                 if (dup2(bar_pipe[1], STDOUT_FILENO) == -1)
2575                         err(1, "dup2");
2576
2577                 if (signal(SIGPIPE, SIG_IGN) == SIG_ERR)
2578                         err(1, "could not disable SIGPIPE");
2579                 switch (bar_pid = fork()) {
2580                 case -1:
2581                         err(1, "cannot fork");
2582                         break;
2583                 case 0: /* child */
2584                         close(bar_pipe[0]);
2585                         execvp(bar_argv[0], bar_argv);
2586                         err(1, "%s external app failed", bar_argv[0]);
2587                         break;
2588                 default: /* parent */
2589                         close(bar_pipe[1]);
2590                         break;
2591                 }
2592
2593                 atexit(kill_bar_extra_atexit);
2594         }
2595 }
2596
2597 void
2598 kill_bar_extra_atexit(void)
2599 {
2600         if (bar_pid)
2601                 kill(bar_pid, SIGTERM);
2602 }
2603
2604 int
2605 isxlfd(char *s)
2606 {
2607         int      count = 0;
2608
2609         while ((s = index(s, '-'))) {
2610                 ++count;
2611                 ++s;
2612         }
2613
2614         return (count == 14);
2615 }
2616
2617 void
2618 fontset_init(void)
2619 {
2620         char                    *default_string;
2621         char                    **missing_charsets;
2622         int                     num_missing_charsets = 0;
2623         int                     i;
2624
2625         if (bar_fs) {
2626                 XFreeFontSet(display, bar_fs);
2627                 bar_fs = NULL;
2628         }
2629
2630         DNPRINTF(SWM_D_INIT, "fontset_init: loading bar_fonts: %s\n", bar_fonts);
2631
2632         bar_fs = XCreateFontSet(display, bar_fonts, &missing_charsets,
2633             &num_missing_charsets, &default_string);
2634
2635         if (num_missing_charsets > 0) {
2636                 warnx("Unable to load charset(s):");
2637
2638                 for (i = 0; i < num_missing_charsets; ++i)
2639                         warnx("%s", missing_charsets[i]);
2640
2641                 XFreeStringList(missing_charsets);
2642
2643                 if (strcmp(default_string, ""))
2644                         warnx("Glyphs from those sets will be replaced "
2645                             "by '%s'.", default_string);
2646                 else
2647                         warnx("Glyphs from those sets won't be drawn.");
2648         }
2649
2650         if (bar_fs == NULL)
2651                 errx(1, "Error creating font set structure.");
2652
2653         bar_fs_extents = XExtentsOfFontSet(bar_fs);
2654
2655         bar_height = bar_fs_extents->max_logical_extent.height +
2656             2 * bar_border_width;
2657
2658         if (bar_height < 1)
2659                 bar_height = 1;
2660 }
2661
2662 void
2663 xft_init(struct swm_region *r)
2664 {
2665         char                    *font, *d, *search;
2666         XRenderColor            color;
2667
2668         if (bar_font == NULL) {
2669                 if ((d = strdup(bar_fonts)) == NULL)
2670                         errx(1, "insufficient memory.");
2671                 search = d;
2672                 while ((font = strsep(&search, ",")) != NULL) {
2673                         if (*font == '\0')
2674                                 continue;
2675
2676                         DNPRINTF(SWM_D_INIT, "xft_init: try font %s\n", font);
2677
2678                         if (isxlfd(font)) {
2679                                 bar_font = XftFontOpenXlfd(display, r->s->idx,
2680                                                 font);
2681                         } else {
2682                                 bar_font = XftFontOpenName(display, r->s->idx,
2683                                                 font);
2684                         }
2685
2686                         if (bar_font == NULL) {
2687                                 warnx("unable to load font %s", font);
2688                                 continue;
2689                         } else {
2690                                 DNPRINTF(SWM_D_INIT, "successfully opened "
2691                                     "font %s\n", font);
2692                                 break;
2693                         }
2694                 }
2695                 free(d);
2696         }
2697
2698         if (bar_font == NULL)
2699                 errx(1, "unable to open a font");
2700
2701         PIXEL_TO_XRENDERCOLOR(r->s->c[SWM_S_COLOR_BAR_FONT].pixel, color);
2702
2703         if (!XftColorAllocValue(display, DefaultVisual(display, r->s->idx),
2704             DefaultColormap(display, r->s->idx), &color, &bar_font_color))
2705                 warn("Xft error: unable to allocate color.");
2706
2707         bar_height = bar_font->height + 2 * bar_border_width;
2708
2709         if (bar_height < 1)
2710                 bar_height = 1;
2711 }
2712
2713 void
2714 bar_setup(struct swm_region *r)
2715 {
2716         xcb_screen_t    *screen;
2717         uint32_t         wa[3];
2718
2719         DNPRINTF(SWM_D_BAR, "bar_setup: screen %d.\n",
2720             r->s->idx);
2721
2722         if ((screen = get_screen(r->s->idx)) == NULL)
2723                 errx(1, "ERROR: can't get screen %d.", r->s->idx);
2724
2725         if (r->bar != NULL)
2726                 return;
2727
2728         if ((r->bar = calloc(1, sizeof(struct swm_bar))) == NULL)
2729                 err(1, "bar_setup: calloc: failed to allocate memory.");
2730
2731         if (bar_font_legacy)
2732                 fontset_init();
2733         else
2734                 xft_init(r);
2735
2736         X(r->bar) = X(r);
2737         Y(r->bar) = bar_at_bottom ? (Y(r) + HEIGHT(r) - bar_height) : Y(r);
2738         WIDTH(r->bar) = WIDTH(r) - 2 * bar_border_width;
2739         HEIGHT(r->bar) = bar_height - 2 * bar_border_width;
2740
2741         /* Assume region is unfocused when we create the bar. */
2742         r->bar->id = xcb_generate_id(conn);
2743         wa[0] = r->s->c[SWM_S_COLOR_BAR].pixel;
2744         wa[1] = r->s->c[SWM_S_COLOR_BAR_BORDER_UNFOCUS].pixel;
2745         wa[2] = XCB_EVENT_MASK_EXPOSURE | XCB_EVENT_MASK_POINTER_MOTION |
2746             XCB_EVENT_MASK_POINTER_MOTION_HINT;
2747
2748         xcb_create_window(conn, XCB_COPY_FROM_PARENT, r->bar->id, r->s->root,
2749             X(r->bar), Y(r->bar), WIDTH(r->bar), HEIGHT(r->bar),
2750             bar_border_width, XCB_WINDOW_CLASS_INPUT_OUTPUT,
2751             XCB_COPY_FROM_PARENT, XCB_CW_BACK_PIXEL | XCB_CW_BORDER_PIXEL
2752             | XCB_CW_EVENT_MASK, wa);
2753
2754         r->bar->buffer = xcb_generate_id(conn);
2755         xcb_create_pixmap(conn, screen->root_depth, r->bar->buffer, r->bar->id,
2756             WIDTH(r->bar), HEIGHT(r->bar));
2757
2758         if (xrandr_support)
2759                 xcb_randr_select_input(conn, r->bar->id,
2760                     XCB_RANDR_NOTIFY_MASK_OUTPUT_CHANGE);
2761
2762         if (bar_enabled)
2763                 xcb_map_window(conn, r->bar->id);
2764
2765         DNPRINTF(SWM_D_BAR, "bar_setup: win %#x, (x,y) w x h: (%d,%d) "
2766             "%d x %d\n", WINID(r->bar), X(r->bar), Y(r->bar), WIDTH(r->bar),
2767             HEIGHT(r->bar));
2768
2769         bar_extra_setup();
2770 }
2771
2772 void
2773 bar_cleanup(struct swm_region *r)
2774 {
2775         if (r->bar == NULL)
2776                 return;
2777         xcb_destroy_window(conn, r->bar->id);
2778         xcb_free_pixmap(conn, r->bar->buffer);
2779         free(r->bar);
2780         r->bar = NULL;
2781 }
2782
2783 void
2784 set_win_state(struct ws_win *win, uint16_t state)
2785 {
2786         uint16_t                data[2] = { state, XCB_ATOM_NONE };
2787
2788         DNPRINTF(SWM_D_EVENT, "set_win_state: win %#x, state: %u\n",
2789             win->id, state);
2790
2791         if (win == NULL)
2792                 return;
2793
2794         xcb_change_property(conn, XCB_PROP_MODE_REPLACE, win->id, a_state,
2795             a_state, 32, 2, data);
2796 }
2797
2798 uint32_t
2799 getstate(xcb_window_t w)
2800 {
2801         uint32_t                        result = 0;
2802         xcb_get_property_cookie_t       c;
2803         xcb_get_property_reply_t        *r;
2804
2805         c = xcb_get_property(conn, 0, w, a_state, a_state, 0L, 2L);
2806         r = xcb_get_property_reply(conn, c, NULL);
2807         if (r) {
2808                 if (r->type == a_state && r->format == 32 && r->length == 2)
2809                         result = *((uint32_t *)xcb_get_property_value(r));
2810                 free(r);
2811         }
2812
2813         DNPRINTF(SWM_D_MISC, "getstate property: win %#x state %u\n", w,
2814             result);
2815         return (result);
2816 }
2817
2818 void
2819 version(struct swm_region *r, union arg *args)
2820 {
2821         /* suppress unused warnings since vars are needed */
2822         (void)r;
2823         (void)args;
2824
2825         bar_version = !bar_version;
2826         if (bar_version)
2827                 snprintf(bar_vertext, sizeof bar_vertext,
2828                     "Version: %s Build: %s", SPECTRWM_VERSION, buildstr);
2829         else
2830                 strlcpy(bar_vertext, "", sizeof bar_vertext);
2831
2832         bar_draw();
2833         xcb_flush(conn);
2834 }
2835
2836 void
2837 client_msg(struct ws_win *win, xcb_atom_t a, xcb_timestamp_t t)
2838 {
2839         xcb_client_message_event_t      ev;
2840 #ifdef SWM_DEBUG
2841         char                            *name;
2842 #endif
2843
2844         if (win == NULL)
2845                 return;
2846 #ifdef SWM_DEBUG
2847         name = get_atom_name(a);
2848         DNPRINTF(SWM_D_EVENT, "client_msg: win %#x, atom: %s(%u), "
2849             "time: %#x\n",
2850             win->id, name, a, t);
2851         free(name);
2852 #endif
2853
2854         bzero(&ev, sizeof ev);
2855         ev.response_type = XCB_CLIENT_MESSAGE;
2856         ev.window = win->id;
2857         ev.type = a_prot;
2858         ev.format = 32;
2859         ev.data.data32[0] = a;
2860         ev.data.data32[1] = t;
2861
2862         xcb_send_event(conn, 0, win->id,
2863             XCB_EVENT_MASK_NO_EVENT, (const char *)&ev);
2864 }
2865
2866 /* synthetic response to a ConfigureRequest when not making a change */
2867 void
2868 config_win(struct ws_win *win, xcb_configure_request_event_t *ev)
2869 {
2870         xcb_configure_notify_event_t ce;
2871
2872         if (win == NULL)
2873                 return;
2874
2875         /* send notification of unchanged state. */
2876         bzero(&ce, sizeof(ce));
2877         ce.response_type = XCB_CONFIGURE_NOTIFY;
2878         ce.x = X(win);
2879         ce.y = Y(win);
2880         ce.width = WIDTH(win);
2881         ce.height = HEIGHT(win);
2882         ce.override_redirect = 0;
2883
2884         if (ev == NULL) {
2885                 /* EWMH */
2886                 ce.event = win->id;
2887                 ce.window = win->id;
2888                 ce.border_width = BORDER(win);
2889                 ce.above_sibling = XCB_WINDOW_NONE;
2890         } else {
2891                 /* normal */
2892                 ce.event = ev->window;
2893                 ce.window = ev->window;
2894
2895                 /* make response appear more WM_SIZE_HINTS-compliant */
2896                 if (win->sh.flags) {
2897                         DNPRINTF(SWM_D_MISC, "config_win: hints: win %#x,"
2898                             " sh.flags: %u, min: %d x %d, max: %d x %d, inc: "
2899                             "%d x %d\n", win->id, win->sh.flags, SH_MIN_W(win),
2900                             SH_MIN_H(win), SH_MAX_W(win), SH_MAX_H(win),
2901                             SH_INC_W(win), SH_INC_H(win));
2902                 }
2903
2904                 /* min size */
2905                 if (SH_MIN(win)) {
2906                         /* the hint may be set... to 0! */
2907                         if (SH_MIN_W(win) > 0 && ce.width < SH_MIN_W(win))
2908                                 ce.width = SH_MIN_W(win);
2909                         if (SH_MIN_H(win) > 0 && ce.height < SH_MIN_H(win))
2910                                 ce.height = SH_MIN_H(win);
2911                 }
2912
2913                 /* max size */
2914                 if (SH_MAX(win)) {
2915                         /* may also be advertized as 0 */
2916                         if (SH_MAX_W(win) > 0 && ce.width > SH_MAX_W(win))
2917                                 ce.width = SH_MAX_W(win);
2918                         if (SH_MAX_H(win) > 0 && ce.height > SH_MAX_H(win))
2919                                 ce.height = SH_MAX_H(win);
2920                 }
2921
2922                 /* resize increment. */
2923                 if (SH_INC(win)) {
2924                         if (SH_INC_W(win) > 1 && ce.width > SH_INC_W(win))
2925                                 ce.width -= (ce.width - SH_MIN_W(win)) %
2926                                     SH_INC_W(win);
2927                         if (SH_INC_H(win) > 1 && ce.height > SH_INC_H(win))
2928                                 ce.height -= (ce.height - SH_MIN_H(win)) %
2929                                     SH_INC_H(win);
2930                 }
2931
2932                 /* adjust x and y for requested border_width. */
2933                 ce.x += BORDER(win) - ev->border_width;
2934                 ce.y += BORDER(win) - ev->border_width;
2935                 ce.border_width = ev->border_width;
2936                 ce.above_sibling = ev->sibling;
2937         }
2938
2939         DNPRINTF(SWM_D_MISC, "config_win: ewmh: %s, win %#x, (x,y) w x h: "
2940             "(%d,%d) %d x %d, border: %d\n", YESNO(ev == NULL), win->id, ce.x,
2941             ce.y, ce.width, ce.height, ce.border_width);
2942
2943         xcb_send_event(conn, 0, win->id, XCB_EVENT_MASK_STRUCTURE_NOTIFY,
2944             (char *)&ce);
2945 }
2946
2947 int
2948 count_win(struct workspace *ws, int count_transient)
2949 {
2950         struct ws_win           *win;
2951         int                     count = 0;
2952
2953         TAILQ_FOREACH(win, &ws->winlist, entry) {
2954                 if (!count_transient && FLOATING(win))
2955                         continue;
2956                 if (ICONIC(win))
2957                         continue;
2958                 count++;
2959         }
2960         DNPRINTF(SWM_D_MISC, "count_win: %d\n", count);
2961
2962         return (count);
2963 }
2964
2965 void
2966 quit(struct swm_region *r, union arg *args)
2967 {
2968         /* suppress unused warnings since vars are needed */
2969         (void)r;
2970         (void)args;
2971
2972         DNPRINTF(SWM_D_MISC, "quit\n");
2973         running = 0;
2974 }
2975
2976 void
2977 raise_window(struct ws_win *win)
2978 {
2979         struct ws_win           *target = NULL;
2980         struct swm_region       *r;
2981         struct workspace        *ws;
2982
2983         if (win == NULL || (r = win->ws->r) == NULL)
2984                 return;
2985         ws = win->ws;
2986
2987         DNPRINTF(SWM_D_EVENT, "raise_window: win %#x\n", win->id);
2988
2989         TAILQ_FOREACH(target, &ws->stack, stack_entry) {
2990                 if (target == win || ICONIC(target))
2991                         continue;
2992                 if (ws->cur_layout == &layouts[SWM_MAX_STACK])
2993                         break;
2994                 if (FULLSCREEN(win))
2995                         break;
2996                 if (FULLSCREEN(target))
2997                         continue;
2998                 if (MAXIMIZED(win))
2999                         break;
3000                 if (MAXIMIZED(target))
3001                         continue;
3002                 if (ABOVE(win) || TRANS(win))
3003                         break;
3004                 if (!ABOVE(target) && !TRANS(target))
3005                         break;
3006         }
3007
3008         if (target != NULL) {
3009                 /* Change stack position. */
3010                 TAILQ_REMOVE(&ws->stack, win, stack_entry);
3011                 TAILQ_INSERT_BEFORE(target, win, stack_entry);
3012                 update_win_stacking(win);
3013         }
3014
3015         DNPRINTF(SWM_D_EVENT, "raise_window: done\n");
3016 }
3017
3018 void
3019 update_win_stacking(struct ws_win *win)
3020 {
3021         struct ws_win           *sibling;
3022         struct swm_region       *r;
3023         uint32_t                val[2];
3024
3025         if (win == NULL || (r = win->ws->r) == NULL)
3026                 return;
3027
3028         sibling = TAILQ_NEXT(win, stack_entry);
3029         if (sibling != NULL && FLOATING(win) == FLOATING(sibling))
3030                 val[0] = sibling->id;
3031         else
3032                 val[0] = FLOATING(win) ? r->bar->id : r->id;
3033
3034         DNPRINTF(SWM_D_EVENT, "update_win_stacking: %#x, sibling %#x\n",
3035             win->id, val[0]);
3036
3037         val[1] = XCB_STACK_MODE_ABOVE;
3038
3039         xcb_configure_window(conn, win->id, XCB_CONFIG_WINDOW_SIBLING |
3040             XCB_CONFIG_WINDOW_STACK_MODE, val);
3041 }
3042
3043 void
3044 map_window(struct ws_win *win)
3045 {
3046         if (win == NULL)
3047                 return;
3048
3049         DNPRINTF(SWM_D_EVENT, "map_window: win %#x, mapped: %s\n",
3050             win->id, YESNO(win->mapped));
3051
3052         if (win->mapped)
3053                 return;
3054
3055         xcb_map_window(conn, win->id);
3056         set_win_state(win, XCB_ICCCM_WM_STATE_NORMAL);
3057         win->mapped = 1;
3058 }
3059
3060 void
3061 unmap_window(struct ws_win *win)
3062 {
3063         if (win == NULL)
3064                 return;
3065
3066         DNPRINTF(SWM_D_EVENT, "unmap_window: win %#x, mapped: %s\n", win->id,
3067             YESNO(win->mapped));
3068
3069         if (!win->mapped)
3070                 return;
3071
3072         xcb_unmap_window(conn, win->id);
3073         set_win_state(win, XCB_ICCCM_WM_STATE_ICONIC);
3074         win->mapped = 0;
3075 }
3076
3077 void
3078 unmap_all(void)
3079 {
3080         struct ws_win           *win;
3081         int                     i, j, num_screens;
3082
3083         num_screens = get_screen_count();
3084         for (i = 0; i < num_screens; i++)
3085                 for (j = 0; j < workspace_limit; j++)
3086                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
3087                                 unmap_window(win);
3088 }
3089
3090 void
3091 fake_keypress(struct ws_win *win, xcb_keysym_t keysym, uint16_t modifiers)
3092 {
3093         xcb_key_press_event_t   event;
3094         xcb_keycode_t           *keycode;
3095
3096         if (win == NULL)
3097                 return;
3098
3099         keycode = xcb_key_symbols_get_keycode(syms, keysym);
3100
3101         DNPRINTF(SWM_D_MISC, "fake_keypress: win %#x, keycode %u\n",
3102             win->id, *keycode);
3103
3104         bzero(&event, sizeof(event));
3105         event.event = win->id;
3106         event.root = win->s->root;
3107         event.child = XCB_WINDOW_NONE;
3108         event.time = XCB_CURRENT_TIME;
3109         event.event_x = X(win);
3110         event.event_y = Y(win);
3111         event.root_x = 1;
3112         event.root_y = 1;
3113         event.same_screen = 1;
3114         event.detail = *keycode;
3115         event.state = modifiers;
3116
3117         event.response_type = XCB_KEY_PRESS;
3118         xcb_send_event(conn, 1, win->id,
3119             XCB_EVENT_MASK_KEY_PRESS, (const char *)&event);
3120
3121         event.response_type = XCB_KEY_RELEASE;
3122         xcb_send_event(conn, 1, win->id,
3123             XCB_EVENT_MASK_KEY_RELEASE, (const char *)&event);
3124
3125         free(keycode);
3126 }
3127
3128 void
3129 restart(struct swm_region *r, union arg *args)
3130 {
3131         /* suppress unused warning since var is needed */
3132         (void)r;
3133         (void)args;
3134
3135         DNPRINTF(SWM_D_MISC, "restart: %s\n", start_argv[0]);
3136
3137         shutdown_cleanup();
3138
3139         execvp(start_argv[0], start_argv);
3140         warn("execvp failed");
3141         quit(NULL, NULL);
3142 }
3143
3144 struct ws_win *
3145 get_pointer_win(xcb_window_t root)
3146 {
3147         struct ws_win                   *win = NULL;
3148         xcb_query_pointer_reply_t       *r;
3149
3150         DNPRINTF(SWM_D_EVENT, "get_pointer_win: root: %#x.\n", root);
3151
3152         r = xcb_query_pointer_reply(conn, xcb_query_pointer(conn, root), NULL);
3153         if (r) {
3154                 win = find_window(r->child);
3155                 if (win) {
3156                         DNPRINTF(SWM_D_EVENT, "get_pointer_win: %#x.\n",
3157                             win->id);
3158                 } else {
3159                         DNPRINTF(SWM_D_EVENT, "get_pointer_win: none.\n");
3160                 }
3161                 free(r);
3162         }
3163
3164         return win;
3165 }
3166
3167 struct swm_region *
3168 root_to_region(xcb_window_t root, int check)
3169 {
3170         struct ws_win                   *cfw;
3171         struct swm_region               *r = NULL;
3172         int                             i, num_screens;
3173         xcb_query_pointer_reply_t       *qpr;
3174         xcb_get_input_focus_reply_t     *gifr;
3175
3176         DNPRINTF(SWM_D_MISC, "root_to_region: win %#x\n", root);
3177
3178         num_screens = get_screen_count();
3179         for (i = 0; i < num_screens; i++)
3180                 if (screens[i].root == root)
3181                         break;
3182
3183         if (check & SWM_CK_REGION)
3184                 r = screens[i].r_focus;
3185
3186         if (r == NULL && check & SWM_CK_FOCUS) {
3187                 /* Try to find an actively focused window */
3188                 gifr = xcb_get_input_focus_reply(conn,
3189                     xcb_get_input_focus(conn), NULL);
3190                 if (gifr) {
3191                         cfw = find_window(gifr->focus);
3192                         if (cfw && cfw->ws->r)
3193                                 r = cfw->ws->r;
3194
3195                         free(gifr);
3196                 }
3197         }
3198
3199         if (r == NULL && check & SWM_CK_POINTER) {
3200                 /* No region with an active focus; try to use pointer. */
3201                 qpr = xcb_query_pointer_reply(conn, xcb_query_pointer(conn,
3202                     screens[i].root), NULL);
3203                 if (qpr) {
3204                         DNPRINTF(SWM_D_MISC, "root_to_region: pointer: "
3205                             "(%d,%d)\n", qpr->root_x, qpr->root_y);
3206                         TAILQ_FOREACH(r, &screens[i].rl, entry)
3207                                 if (X(r) <= qpr->root_x &&
3208                                     qpr->root_x < MAX_X(r) &&
3209                                     Y(r) <= qpr->root_y &&
3210                                     qpr->root_y < MAX_Y(r))
3211                                         break;
3212                         free(qpr);
3213                 }
3214         }
3215
3216         /* Last resort. */
3217         if (r == NULL && check & SWM_CK_FALLBACK)
3218                 r = TAILQ_FIRST(&screens[i].rl);
3219
3220         DNPRINTF(SWM_D_MISC, "root_to_region: idx: %d\n", get_region_index(r));
3221
3222         return (r);
3223 }
3224
3225 struct ws_win *
3226 find_unmanaged_window(xcb_window_t id)
3227 {
3228         struct ws_win           *win;
3229         int                     i, j, num_screens;
3230
3231         num_screens = get_screen_count();
3232         for (i = 0; i < num_screens; i++)
3233                 for (j = 0; j < workspace_limit; j++)
3234                         TAILQ_FOREACH(win, &screens[i].ws[j].unmanagedlist,
3235                             entry)
3236                                 if (id == win->id)
3237                                         return (win);
3238         return (NULL);
3239 }
3240
3241 struct ws_win *
3242 find_window(xcb_window_t id)
3243 {
3244         struct ws_win           *win;
3245         int                     i, j, num_screens;
3246         xcb_query_tree_reply_t  *r;
3247
3248         num_screens = get_screen_count();
3249         for (i = 0; i < num_screens; i++)
3250                 for (j = 0; j < workspace_limit; j++)
3251                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
3252                                 if (id == win->id)
3253                                         return (win);
3254
3255         r = xcb_query_tree_reply(conn, xcb_query_tree(conn, id), NULL);
3256         if (r == NULL)
3257                 return (NULL);
3258
3259         /* if we were looking for the parent return that window instead */
3260         if (r->parent == 0 || r->root == r->parent) {
3261                 free(r);
3262                 return (NULL);
3263         }
3264
3265         /* look for parent */
3266         for (i = 0; i < num_screens; i++)
3267                 for (j = 0; j < workspace_limit; j++)
3268                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
3269                                 if (r->parent == win->id) {
3270                                         free(r);
3271                                         return (win);
3272                                 }
3273
3274         free(r);
3275         return (NULL);
3276 }
3277
3278 void
3279 spawn(int ws_idx, union arg *args, int close_fd)
3280 {
3281         int                     fd;
3282         char                    *ret = NULL;
3283
3284         DNPRINTF(SWM_D_MISC, "spawn: %s\n", args->argv[0]);
3285
3286         close(xcb_get_file_descriptor(conn));
3287
3288         setenv("LD_PRELOAD", SWM_LIB, 1);
3289
3290         if (asprintf(&ret, "%d", ws_idx) == -1) {
3291                 warn("spawn: asprintf SWM_WS");
3292                 _exit(1);
3293         }
3294         setenv("_SWM_WS", ret, 1);
3295         free(ret);
3296         ret = NULL;
3297
3298         if (asprintf(&ret, "%d", getpid()) == -1) {
3299                 warn("spawn: asprintf _SWM_PID");
3300                 _exit(1);
3301         }
3302         setenv("_SWM_PID", ret, 1);
3303         free(ret);
3304         ret = NULL;
3305
3306         if (setsid() == -1) {
3307                 warn("spawn: setsid");
3308                 _exit(1);
3309         }
3310
3311         if (close_fd) {
3312                 /*
3313                  * close stdin and stdout to prevent interaction between apps
3314                  * and the baraction script
3315                  * leave stderr open to record errors
3316                 */
3317                 if ((fd = open(_PATH_DEVNULL, O_RDWR, 0)) == -1) {
3318                         warn("spawn: open");
3319                         _exit(1);
3320                 }
3321                 dup2(fd, STDIN_FILENO);
3322                 dup2(fd, STDOUT_FILENO);
3323                 if (fd > 2)
3324                         close(fd);
3325         }
3326
3327         execvp(args->argv[0], args->argv);
3328
3329         warn("spawn: execvp");
3330         _exit(1);
3331 }
3332
3333 void
3334 kill_refs(struct ws_win *win)
3335 {
3336         int                     i, x, num_screens;
3337         struct swm_region       *r;
3338         struct workspace        *ws;
3339
3340         if (win == NULL)
3341                 return;
3342
3343         num_screens = get_screen_count();
3344         for (i = 0; i < num_screens; i++)
3345                 TAILQ_FOREACH(r, &screens[i].rl, entry)
3346                         for (x = 0; x < workspace_limit; x++) {
3347                                 ws = &r->s->ws[x];
3348                                 if (win == ws->focus)
3349                                         ws->focus = NULL;
3350                                 if (win == ws->focus_prev)
3351                                         ws->focus_prev = NULL;
3352                         }
3353 }
3354
3355 int
3356 validate_win(struct ws_win *testwin)
3357 {
3358         struct ws_win           *win;
3359         struct workspace        *ws;
3360         struct swm_region       *r;
3361         int                     i, x, num_screens;
3362
3363         if (testwin == NULL)
3364                 return (0);
3365
3366         num_screens = get_screen_count();
3367         for (i = 0; i < num_screens; i++)
3368                 TAILQ_FOREACH(r, &screens[i].rl, entry)
3369                         for (x = 0; x < workspace_limit; x++) {
3370                                 ws = &r->s->ws[x];
3371                                 TAILQ_FOREACH(win, &ws->winlist, entry)
3372                                         if (win == testwin)
3373                                                 return (0);
3374                         }
3375         return (1);
3376 }
3377
3378 int
3379 validate_ws(struct workspace *testws)
3380 {
3381         struct swm_region       *r;
3382         struct workspace        *ws;
3383         int                     i, x, num_screens;
3384
3385         /* validate all ws */
3386         num_screens = get_screen_count();
3387         for (i = 0; i < num_screens; i++)
3388                 TAILQ_FOREACH(r, &screens[i].rl, entry)
3389                         for (x = 0; x < workspace_limit; x++) {
3390                                 ws = &r->s->ws[x];
3391                                 if (ws == testws)
3392                                         return (0);
3393                         }
3394         return (1);
3395 }
3396
3397 void
3398 unfocus_win(struct ws_win *win)
3399 {
3400         xcb_window_t            none = XCB_WINDOW_NONE;
3401
3402         DNPRINTF(SWM_D_FOCUS, "unfocus_win: win %#x\n", WINID(win));
3403
3404         if (win == NULL)
3405                 return;
3406
3407         if (win->ws == NULL) {
3408                 DNPRINTF(SWM_D_FOCUS, "unfocus_win: NULL ws.\n");
3409                 return;
3410         }
3411
3412         if (validate_ws(win->ws)) {
3413                 DNPRINTF(SWM_D_FOCUS, "unfocus_win: invalid ws.\n");
3414                 return;
3415         }
3416
3417         if (win->ws->r == NULL) {
3418                 DNPRINTF(SWM_D_FOCUS, "unfocus_win: NULL region.\n");
3419                 return;
3420         }
3421
3422         if (validate_win(win)) {
3423                 DNPRINTF(SWM_D_FOCUS, "unfocus_win: invalid win.\n");
3424                 kill_refs(win);
3425                 return;
3426         }
3427
3428         if (win->ws->focus == win) {
3429                 win->ws->focus = NULL;
3430                 win->ws->focus_prev = win;
3431         }
3432
3433         if (validate_win(win->ws->focus)) {
3434                 kill_refs(win->ws->focus);
3435                 win->ws->focus = NULL;
3436         }
3437
3438         if (validate_win(win->ws->focus_prev)) {
3439                 kill_refs(win->ws->focus_prev);
3440                 win->ws->focus_prev = NULL;
3441         }
3442
3443         xcb_change_window_attributes(conn, win->id, XCB_CW_BORDER_PIXEL,
3444             &win->ws->r->s->c[SWM_S_COLOR_UNFOCUS].pixel);
3445
3446         xcb_change_property(conn, XCB_PROP_MODE_REPLACE, win->s->root,
3447             ewmh[_NET_ACTIVE_WINDOW].atom, XCB_ATOM_WINDOW, 32, 1, &none);
3448
3449         DNPRINTF(SWM_D_FOCUS, "unfocus_win: done.\n");
3450 }
3451
3452 void
3453 focus_win(struct ws_win *win)
3454 {
3455         struct ws_win                   *cfw = NULL, *parent = NULL, *w;
3456         struct workspace                *ws;
3457         xcb_get_input_focus_reply_t     *gifr;
3458
3459         DNPRINTF(SWM_D_FOCUS, "focus_win: win %#x\n", WINID(win));
3460
3461         if (win == NULL)
3462                 goto out;
3463
3464         if (win->ws == NULL)
3465                 goto out;
3466
3467         if (!win->mapped)
3468                 goto out;
3469
3470         ws = win->ws;
3471
3472         if (validate_ws(ws))
3473                 goto out;
3474
3475         if (validate_win(win)) {
3476                 kill_refs(win);
3477                 goto out;
3478         }
3479
3480         gifr = xcb_get_input_focus_reply(conn, xcb_get_input_focus(conn), NULL);
3481         if (gifr) {
3482                 cfw = find_window(gifr->focus);
3483                 if (cfw != NULL && cfw != win) {
3484                         if (cfw->ws != ws && cfw->ws->r != NULL) {
3485                                 /* Change border to unfocused color. */
3486                                 xcb_change_window_attributes(conn, cfw->id,
3487                                     XCB_CW_BORDER_PIXEL,
3488                                     &cfw->ws->r->s->c[SWM_S_COLOR_UNFOCUS].pixel);
3489                         } else {
3490                                 unfocus_win(cfw);
3491                         }
3492                 }
3493                 free(gifr);
3494         }
3495
3496         if (ws->focus != win) {
3497                 if (ws->focus && ws->focus != cfw)
3498                         unfocus_win(ws->focus);
3499                 ws->focus = win;
3500         }
3501
3502         /* If this window directs focus to a child window, then clear. */
3503         if (win->focus_child)
3504                 win->focus_child = NULL;
3505
3506         /* If transient, adjust parent's focus child for focus_magic. */
3507         if (TRANS(win)) {
3508                 parent = find_window(win->transient);
3509                 if (parent && parent->focus_child != win)
3510                         parent->focus_child = win;
3511         }
3512
3513         if (cfw != win && ws->r != NULL) {
3514                 /* Set input focus if no input hint, or indicated by hint. */
3515                 if (!(win->hints.flags & XCB_ICCCM_WM_HINT_INPUT) ||
3516                     (win->hints.flags & XCB_ICCCM_WM_HINT_INPUT &&
3517                      win->hints.input))
3518                         xcb_set_input_focus(conn, XCB_INPUT_FOCUS_PARENT,
3519                                         win->id, last_event_time);
3520                 else
3521                         xcb_set_input_focus(conn, XCB_INPUT_FOCUS_PARENT,
3522                             ws->r->id, XCB_CURRENT_TIME);
3523
3524                 /* Tell app it can adjust focus to a specific window. */
3525                 if (win->take_focus) {
3526                         /* java is special; always tell parent */
3527                         if (TRANS(win) && win->java)
3528                                 client_msg(parent, a_takefocus,
3529                                     last_event_time);
3530                         else
3531                                 client_msg(win, a_takefocus, last_event_time);
3532                 }
3533
3534                 xcb_change_window_attributes(conn, win->id, XCB_CW_BORDER_PIXEL,
3535                     &ws->r->s->c[SWM_S_COLOR_FOCUS].pixel);
3536
3537                 if (ws->cur_layout->flags & SWM_L_MAPONFOCUS ||
3538                     ws->always_raise) {
3539                         /* If a parent exists, map it first. */
3540                         if (parent) {
3541                                 raise_window(parent);
3542                                 map_window(parent);
3543
3544                                 /* Map siblings next. */
3545                                 TAILQ_FOREACH(w, &ws->winlist, entry)
3546                                         if (w != win && !ICONIC(w) &&
3547                                             win->transient == parent->id)
3548                                                 map_window(w);
3549                         }
3550
3551                         /* Map focused window. */
3552                         raise_window(win);
3553                         map_window(win);
3554
3555                         /* Finally, map children of focus window. */
3556                         TAILQ_FOREACH(w, &ws->winlist, entry)
3557                                 if (w->transient == win->id && !ICONIC(w))
3558                                         map_window(w);
3559                 } else if (tile_gap < 0 && !ABOVE(win)) {
3560                         /*
3561                          * Windows overlap in the layout.
3562                          * Raise focused win above all tiled wins.
3563                          */
3564                         raise_window(win);
3565                         map_window(win);
3566                 }
3567
3568                 set_region(ws->r);
3569
3570                 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, win->s->root,
3571                     ewmh[_NET_ACTIVE_WINDOW].atom, XCB_ATOM_WINDOW, 32, 1,
3572                     &win->id);
3573         }
3574
3575 out:
3576         bar_draw();
3577
3578         DNPRINTF(SWM_D_FOCUS, "focus_win: done.\n");
3579 }
3580
3581 /* If a child window should have focus instead, return it. */
3582 struct ws_win *
3583 get_focus_magic(struct ws_win *win)
3584 {
3585         struct ws_win   *parent = NULL;
3586         struct ws_win   *child = NULL;
3587
3588         DNPRINTF(SWM_D_FOCUS, "get_focus_magic: win %#x\n", WINID(win));
3589         if (win == NULL)
3590                 return win;
3591
3592         if (TRANS(win)) {
3593                 parent = find_window(win->transient);
3594
3595                 /* If parent prefers focus elsewhere, then try to do so. */
3596                 if (parent && (child = parent->focus_child)) {
3597                         if (validate_win(child) == 0 && child->mapped)
3598                                 win = child;
3599                         else
3600                                 parent->focus_child = NULL;
3601                 }
3602         }
3603
3604         /* If this window prefers focus elsewhere, then try to do so. */
3605         if ((child = win->focus_child)) {
3606                 if (validate_win(child) == 0 && child->mapped)
3607                         win = child;
3608                 else
3609                         win->focus_child = NULL;
3610         }
3611
3612         return win;
3613 }
3614
3615 void
3616 event_drain(uint8_t rt)
3617 {
3618         xcb_generic_event_t     *evt;
3619
3620         /* ensure all pending requests have been processed before filtering. */
3621         xcb_aux_sync(conn);
3622         while ((evt = xcb_poll_for_event(conn))) {
3623                 if (XCB_EVENT_RESPONSE_TYPE(evt) != rt)
3624                         event_handle(evt);
3625
3626                 free(evt);
3627         }
3628 }
3629
3630 void
3631 set_region(struct swm_region *r)
3632 {
3633         struct swm_region       *rf;
3634
3635         if (r == NULL)
3636                 return;
3637
3638         rf = r->s->r_focus;
3639         /* Unfocus old region bar. */
3640         if (rf) {
3641                 if (rf == r)
3642                         return;
3643
3644                 xcb_change_window_attributes(conn, rf->bar->id,
3645                     XCB_CW_BORDER_PIXEL,
3646                     &r->s->c[SWM_S_COLOR_BAR_BORDER_UNFOCUS].pixel);
3647         }
3648
3649         /* Set region bar border to focus_color. */
3650         xcb_change_window_attributes(conn, r->bar->id,
3651             XCB_CW_BORDER_PIXEL, &r->s->c[SWM_S_COLOR_BAR_BORDER].pixel);
3652
3653         r->s->r_focus = r;
3654
3655         ewmh_update_current_desktop();
3656 }
3657
3658 void
3659 focus_region(struct swm_region *r)
3660 {
3661         struct ws_win           *nfw;
3662         struct swm_region       *old_r;
3663
3664         if (r == NULL)
3665                 return;
3666
3667         old_r = r->s->r_focus;
3668         set_region(r);
3669
3670         nfw = get_region_focus(r);
3671         if (nfw) {
3672                 focus_win(nfw);
3673         } else {
3674                 /* New region is empty; need to manually unfocus win. */
3675                 if (old_r)
3676                         unfocus_win(old_r->ws->focus);
3677
3678                 xcb_set_input_focus(conn, XCB_INPUT_FOCUS_PARENT, r->id,
3679                     XCB_CURRENT_TIME);
3680
3681                 /* Clear bar since empty. */
3682                 bar_draw();
3683         }
3684 }
3685
3686 void
3687 switchws(struct swm_region *r, union arg *args)
3688 {
3689         struct swm_region       *this_r, *other_r;
3690         struct ws_win           *win;
3691         struct workspace        *new_ws, *old_ws;
3692         xcb_window_t            none = XCB_WINDOW_NONE;
3693         int                     wsid = args->id, unmap_old = 0;
3694
3695         if (!(r && r->s))
3696                 return;
3697
3698         if (wsid >= workspace_limit)
3699                 return;
3700
3701         this_r = r;
3702         old_ws = this_r->ws;
3703         new_ws = &this_r->s->ws[wsid];
3704
3705         DNPRINTF(SWM_D_WS, "switchws: screen[%d]:%dx%d+%d+%d: %d -> %d\n",
3706             r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), old_ws->idx, wsid);
3707
3708         if (new_ws == NULL || old_ws == NULL)
3709                 return;
3710         if (new_ws == old_ws)
3711                 return;
3712
3713         if ((win = old_ws->focus) != NULL) {
3714                 xcb_change_window_attributes(conn, win->id, XCB_CW_BORDER_PIXEL,
3715                     &win->ws->r->s->c[SWM_S_COLOR_UNFOCUS].pixel);
3716
3717                 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, win->s->root,
3718                     ewmh[_NET_ACTIVE_WINDOW].atom, XCB_ATOM_WINDOW, 32, 1,
3719                     &none);
3720         }
3721
3722         other_r = new_ws->r;
3723         if (other_r == NULL) {
3724                 /* the other workspace is hidden, hide this one */
3725                 old_ws->r = NULL;
3726                 unmap_old = 1;
3727         } else {
3728                 /* the other ws is visible in another region, exchange them */
3729                 other_r->ws_prior = new_ws;
3730                 other_r->ws = old_ws;
3731                 old_ws->r = other_r;
3732         }
3733         this_r->ws_prior = old_ws;
3734         this_r->ws = new_ws;
3735         new_ws->r = this_r;
3736
3737         /* Set focus_pending before stacking, if needed. */
3738         if (focus_mode != SWM_FOCUS_FOLLOW && (!new_ws->focus_pending ||
3739             validate_win(new_ws->focus_pending))) {
3740                 new_ws->focus_pending = get_region_focus(new_ws->r);
3741                 new_ws->focus = new_ws->focus_prev;
3742                 new_ws->focus_prev = NULL;
3743         }
3744
3745         new_ws->state = SWM_WS_STATE_MAPPING;
3746         stack();
3747
3748         /* unmap old windows */
3749         if (unmap_old) {
3750                 TAILQ_FOREACH(win, &old_ws->winlist, entry)
3751                         unmap_window(win);
3752                 old_ws->state = SWM_WS_STATE_HIDDEN;
3753         }
3754
3755         /* if workspaces were swapped, then don't wait to set focus */
3756         if (old_ws->r && focus_mode != SWM_FOCUS_FOLLOW) {
3757                 if (new_ws->focus_pending) {
3758                         focus_win(new_ws->focus_pending);
3759                         new_ws->focus_pending = NULL;
3760                 }
3761         }
3762
3763         /* Clear bar and set focus on region input win if new ws is empty. */
3764         if (new_ws->focus_pending == NULL && new_ws->focus == NULL) {
3765                 xcb_set_input_focus(conn, XCB_INPUT_FOCUS_PARENT, r->id,
3766                     XCB_CURRENT_TIME);
3767                 bar_draw();
3768         }
3769
3770         ewmh_update_current_desktop();
3771
3772         focus_flush();
3773         new_ws->state = SWM_WS_STATE_MAPPED;
3774
3775         DNPRINTF(SWM_D_WS, "switchws: done.\n");
3776 }
3777
3778 void
3779 cyclews(struct swm_region *r, union arg *args)
3780 {
3781         union                   arg a;
3782         struct swm_screen       *s = r->s;
3783         int                     cycle_all = 0;
3784         int                     move = 0;
3785
3786         DNPRINTF(SWM_D_WS, "cyclews: id: %d, screen[%d]:%dx%d+%d+%d, ws: %d\n",
3787             args->id, r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
3788
3789         a.id = r->ws->idx;
3790
3791         do {
3792                 switch (args->id) {
3793                 case SWM_ARG_ID_CYCLEWS_MOVE_UP:
3794                         move = 1;
3795                         /* FALLTHROUGH */
3796                 case SWM_ARG_ID_CYCLEWS_UP_ALL:
3797                         cycle_all = 1;
3798                         /* FALLTHROUGH */
3799                 case SWM_ARG_ID_CYCLEWS_UP:
3800                         a.id = (a.id < workspace_limit - 1) ? a.id + 1 : 0;
3801                         break;
3802                 case SWM_ARG_ID_CYCLEWS_MOVE_DOWN:
3803                         move = 1;
3804                         /* FALLTHROUGH */
3805                 case SWM_ARG_ID_CYCLEWS_DOWN_ALL:
3806                         cycle_all = 1;
3807                         /* FALLTHROUGH */
3808                 case SWM_ARG_ID_CYCLEWS_DOWN:
3809                         a.id = (a.id > 0) ? a.id - 1 : workspace_limit - 1;
3810                         break;
3811                 default:
3812                         return;
3813                 };
3814
3815                 if (!cycle_all &&
3816                     (!cycle_empty && TAILQ_EMPTY(&s->ws[a.id].winlist)))
3817                         continue;
3818                 if (!cycle_visible && s->ws[a.id].r != NULL)
3819                         continue;
3820
3821                 if (move)
3822                         send_to_ws(r, &a);
3823
3824                 switchws(r, &a);
3825         } while (a.id != r->ws->idx);
3826
3827         DNPRINTF(SWM_D_FOCUS, "cyclews: done\n");
3828 }
3829
3830 void
3831 priorws(struct swm_region *r, union arg *args)
3832 {
3833         union arg               a;
3834
3835         (void)args;
3836
3837         DNPRINTF(SWM_D_WS, "priorws: id: %d, screen[%d]:%dx%d+%d+%d, ws: %d\n",
3838             args->id, r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
3839
3840         if (r->ws_prior == NULL)
3841                 return;
3842
3843         a.id = r->ws_prior->idx;
3844         switchws(r, &a);
3845         DNPRINTF(SWM_D_FOCUS, "priorws: done\n");
3846 }
3847
3848 void
3849 focusrg(struct swm_region *r, union arg *args)
3850 {
3851         int                     ridx = args->id, i, num_screens;
3852         struct swm_region       *rr = NULL;
3853
3854         num_screens = get_screen_count();
3855         /* do nothing if we don't have more than one screen */
3856         if (!(num_screens > 1 || outputs > 1))
3857                 return;
3858
3859         DNPRINTF(SWM_D_FOCUS, "focusrg: id: %d\n", ridx);
3860
3861         rr = TAILQ_FIRST(&r->s->rl);
3862         for (i = 0; i < ridx && rr != NULL; ++i)
3863                 rr = TAILQ_NEXT(rr, entry);
3864
3865         if (rr == NULL)
3866                 return;
3867
3868         focus_region(rr);
3869         focus_flush();
3870         DNPRINTF(SWM_D_FOCUS, "focusrg: done\n");
3871 }
3872
3873 void
3874 cyclerg(struct swm_region *r, union arg *args)
3875 {
3876         struct swm_region       *rr = NULL;
3877         int                     i, num_screens;
3878
3879         num_screens = get_screen_count();
3880         /* do nothing if we don't have more than one screen */
3881         if (!(num_screens > 1 || outputs > 1))
3882                 return;
3883
3884         i = r->s->idx;
3885         DNPRINTF(SWM_D_FOCUS, "cyclerg: id: %d, region: %d\n", args->id, i);
3886
3887         switch (args->id) {
3888         case SWM_ARG_ID_CYCLERG_UP:
3889                 rr = TAILQ_NEXT(r, entry);
3890                 if (rr == NULL)
3891                         rr = TAILQ_FIRST(&screens[i].rl);
3892                 break;
3893         case SWM_ARG_ID_CYCLERG_DOWN:
3894                 rr = TAILQ_PREV(r, swm_region_list, entry);
3895                 if (rr == NULL)
3896                         rr = TAILQ_LAST(&screens[i].rl, swm_region_list);
3897                 break;
3898         default:
3899                 return;
3900         };
3901         if (rr == NULL)
3902                 return;
3903
3904         focus_region(rr);
3905         focus_flush();
3906         DNPRINTF(SWM_D_FOCUS, "cyclerg: done\n");
3907 }
3908
3909 /* Sorts transients after parent. */
3910 void
3911 sort_windows(struct ws_win_list *wl)
3912 {
3913         struct ws_win           *win, *parent, *nxt;
3914
3915         if (wl == NULL)
3916                 return;
3917
3918         for (win = TAILQ_FIRST(wl); win != TAILQ_END(wl); win = nxt) {
3919                 nxt = TAILQ_NEXT(win, entry);
3920                 if (TRANS(win)) {
3921                         parent = find_window(win->transient);
3922                         if (parent == NULL) {
3923                                 warnx("not possible bug");
3924                                 continue;
3925                         }
3926                         TAILQ_REMOVE(wl, win, entry);
3927                         TAILQ_INSERT_AFTER(wl, parent, win, entry);
3928                 }
3929         }
3930 }
3931
3932 void
3933 swapwin(struct swm_region *r, union arg *args)
3934 {
3935         struct ws_win           *target, *source;
3936         struct ws_win           *cur_focus;
3937         struct ws_win_list      *wl;
3938
3939         DNPRINTF(SWM_D_WS, "swapwin: id: %d, screen[%d]:%dx%d+%d+%d, ws: %d\n",
3940             args->id, r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
3941
3942         cur_focus = r->ws->focus;
3943         if (cur_focus == NULL || ABOVE(cur_focus) || FULLSCREEN(cur_focus))
3944                 return;
3945
3946         if (r->ws->cur_layout == &layouts[SWM_MAX_STACK])
3947                 return;
3948
3949         clear_maximized(r->ws);
3950
3951         source = cur_focus;
3952         wl = &source->ws->winlist;
3953
3954         switch (args->id) {
3955         case SWM_ARG_ID_SWAPPREV:
3956                 if (TRANS(source))
3957                         source = find_window(source->transient);
3958                 target = TAILQ_PREV(source, ws_win_list, entry);
3959                 if (target && target->transient)
3960                         target = find_window(target->transient);
3961                 TAILQ_REMOVE(wl, source, entry);
3962                 if (target == NULL)
3963                         TAILQ_INSERT_TAIL(wl, source, entry);
3964                 else
3965                         TAILQ_INSERT_BEFORE(target, source, entry);
3966                 break;
3967         case SWM_ARG_ID_SWAPNEXT:
3968                 target = TAILQ_NEXT(source, entry);
3969                 /* move the parent and let the sort handle the move */
3970                 if (TRANS(source))
3971                         source = find_window(source->transient);
3972                 TAILQ_REMOVE(wl, source, entry);
3973                 if (target == NULL)
3974                         TAILQ_INSERT_HEAD(wl, source, entry);
3975                 else
3976                         TAILQ_INSERT_AFTER(wl, target, source, entry);
3977                 break;
3978         case SWM_ARG_ID_SWAPMAIN:
3979                 target = TAILQ_FIRST(wl);
3980                 if (target == source) {
3981                         if (source->ws->focus_prev != NULL &&
3982                             source->ws->focus_prev != target)
3983                                 source = source->ws->focus_prev;
3984                         else
3985                                 return;
3986                 }
3987                 if (target == NULL || source == NULL)
3988                         return;
3989                 source->ws->focus_prev = target;
3990                 TAILQ_REMOVE(wl, target, entry);
3991                 TAILQ_INSERT_BEFORE(source, target, entry);
3992                 TAILQ_REMOVE(wl, source, entry);
3993                 TAILQ_INSERT_HEAD(wl, source, entry);
3994                 break;
3995         case SWM_ARG_ID_MOVELAST:
3996                 TAILQ_REMOVE(wl, source, entry);
3997                 TAILQ_INSERT_TAIL(wl, source, entry);
3998                 break;
3999         default:
4000                 DNPRINTF(SWM_D_MOVE, "swapwin: invalid id: %d\n", args->id);
4001                 return;
4002         }
4003
4004         sort_windows(wl);
4005
4006         ewmh_update_client_list();
4007
4008         stack();
4009
4010         focus_flush();
4011 }
4012
4013 struct ws_win *
4014 get_focus_prev(struct ws_win *win)
4015 {
4016         struct ws_win           *winfocus = NULL;
4017         struct ws_win           *cur_focus = NULL;
4018         struct ws_win_list      *wl = NULL;
4019         struct workspace        *ws = NULL;
4020
4021         if (!(win && win->ws))
4022                 return NULL;
4023
4024         ws = win->ws;
4025         wl = &ws->winlist;
4026         cur_focus = ws->focus;
4027
4028         DNPRINTF(SWM_D_FOCUS, "get_focus_prev: win %#x, cur_focus: %#x, "
4029             "focus_prev: %#x\n", WINID(win), WINID(cur_focus),
4030             WINID(ws->focus_prev));
4031
4032         /* pickle, just focus on whatever */
4033         if (cur_focus == NULL) {
4034                 /* use prev_focus if valid */
4035                 if (ws->focus_prev && find_window(ws->focus_prev->id))
4036                         winfocus = ws->focus_prev;
4037                 goto done;
4038         }
4039
4040         /* if transient focus on parent */
4041         if (TRANS(cur_focus)) {
4042                 winfocus = find_window(cur_focus->transient);
4043                 goto done;
4044         }
4045
4046         /* if in max_stack try harder */
4047         if ((win->quirks & SWM_Q_FOCUSPREV) ||
4048             (ws->cur_layout->flags & SWM_L_FOCUSPREV)) {
4049                 if (cur_focus != ws->focus_prev)
4050                         winfocus = ws->focus_prev;
4051                 else
4052                         winfocus = TAILQ_PREV(win, ws_win_list, entry);
4053                 if (winfocus)
4054                         goto done;
4055         }
4056
4057         DNPRINTF(SWM_D_FOCUS, "get_focus_prev: focus_close: %d\n", focus_close);
4058
4059         if (winfocus == NULL || winfocus == win) {
4060                 switch (focus_close) {
4061                 case SWM_STACK_BOTTOM:
4062                         TAILQ_FOREACH(winfocus, wl, entry)
4063                                 if (!ICONIC(winfocus) && winfocus != cur_focus)
4064                                         break;
4065                         break;
4066                 case SWM_STACK_TOP:
4067                         TAILQ_FOREACH_REVERSE(winfocus, wl, ws_win_list, entry)
4068                                 if (!ICONIC(winfocus) && winfocus != cur_focus)
4069                                         break;
4070                         break;
4071                 case SWM_STACK_ABOVE:
4072                         winfocus = TAILQ_NEXT(cur_focus, entry);
4073                         while (winfocus && ICONIC(winfocus))
4074                                 winfocus = TAILQ_NEXT(winfocus, entry);
4075
4076                         if (winfocus == NULL) {
4077                                 if (focus_close_wrap) {
4078                                         TAILQ_FOREACH(winfocus, wl, entry)
4079                                                 if (!ICONIC(winfocus) &&
4080                                                     winfocus != cur_focus)
4081                                                         break;
4082                                 } else {
4083                                         TAILQ_FOREACH_REVERSE(winfocus, wl,
4084                                             ws_win_list, entry)
4085                                                 if (!ICONIC(winfocus) &&
4086                                                     winfocus != cur_focus)
4087                                                         break;
4088                                 }
4089                         }
4090                         break;
4091                 case SWM_STACK_BELOW:
4092                         winfocus = TAILQ_PREV(cur_focus, ws_win_list, entry);
4093                         while (winfocus && ICONIC(winfocus))
4094                                 winfocus = TAILQ_PREV(winfocus, ws_win_list,
4095                                     entry);
4096
4097                         if (winfocus == NULL) {
4098                                 if (focus_close_wrap) {
4099                                         TAILQ_FOREACH_REVERSE(winfocus, wl,
4100                                             ws_win_list, entry)
4101                                                 if (!ICONIC(winfocus) &&
4102                                                     winfocus != cur_focus)
4103                                                         break;
4104                                 } else {
4105                                         TAILQ_FOREACH(winfocus, wl, entry)
4106                                                 if (!ICONIC(winfocus) &&
4107                                                     winfocus != cur_focus)
4108                                                         break;
4109                                 }
4110                         }
4111                         break;
4112                 }
4113         }
4114 done:
4115         if (winfocus == NULL ||
4116             (winfocus && (ICONIC(winfocus) || winfocus == cur_focus))) {
4117                 if (focus_default == SWM_STACK_TOP) {
4118                         TAILQ_FOREACH_REVERSE(winfocus, wl, ws_win_list, entry)
4119                                 if (!ICONIC(winfocus) && winfocus != cur_focus)
4120                                         break;
4121                 } else {
4122                         TAILQ_FOREACH(winfocus, wl, entry)
4123                                 if (!ICONIC(winfocus) && winfocus != cur_focus)
4124                                         break;
4125                 }
4126         }
4127
4128         kill_refs(win);
4129
4130         return get_focus_magic(winfocus);
4131 }
4132
4133 struct ws_win *
4134 get_region_focus(struct swm_region *r)
4135 {
4136         struct ws_win           *winfocus = NULL;
4137
4138         if (!(r && r->ws))
4139                 return NULL;
4140
4141         if (r->ws->focus && !ICONIC(r->ws->focus))
4142                 winfocus = r->ws->focus;
4143         else if (r->ws->focus_prev && !ICONIC(r->ws->focus_prev))
4144                 winfocus = r->ws->focus_prev;
4145         else
4146                 TAILQ_FOREACH(winfocus, &r->ws->winlist, entry)
4147                         if (!ICONIC(winfocus))
4148                                 break;
4149
4150         return get_focus_magic(winfocus);
4151 }
4152
4153 void
4154 focus(struct swm_region *r, union arg *args)
4155 {
4156         struct ws_win           *head, *cur_focus = NULL, *winfocus = NULL;
4157         struct ws_win_list      *wl = NULL;
4158         struct workspace        *ws = NULL;
4159         union arg               a;
4160         int                     i;
4161         xcb_icccm_wm_hints_t    hints;
4162
4163         if (!(r && r->ws))
4164                 goto out;
4165
4166         DNPRINTF(SWM_D_FOCUS, "focus: id: %d\n", args->id);
4167
4168         cur_focus = r->ws->focus;
4169         ws = r->ws;
4170         wl = &ws->winlist;
4171
4172         /* Make sure an uniconified window has focus, if one exists. */
4173         if (cur_focus == NULL) {
4174                 cur_focus = TAILQ_FIRST(wl);
4175                 while (cur_focus != NULL && ICONIC(cur_focus))
4176                         cur_focus = TAILQ_NEXT(cur_focus, entry);
4177         }
4178
4179         switch (args->id) {
4180         case SWM_ARG_ID_FOCUSPREV:
4181                 if (cur_focus == NULL)
4182                         goto out;
4183
4184                 winfocus = cur_focus;
4185                 do {
4186                         winfocus = TAILQ_PREV(winfocus, ws_win_list, entry);
4187                         if (winfocus == NULL)
4188                                 winfocus = TAILQ_LAST(wl, ws_win_list);
4189                         if (winfocus == cur_focus)
4190                                 break;
4191                 } while (winfocus != NULL &&
4192                     (ICONIC(winfocus) || winfocus->id == cur_focus->transient));
4193                 break;
4194         case SWM_ARG_ID_FOCUSNEXT:
4195                 if (cur_focus == NULL)
4196                         goto out;
4197
4198                 winfocus = cur_focus;
4199                 do {
4200                         winfocus = TAILQ_NEXT(winfocus, entry);
4201                         if (winfocus == NULL)
4202                                 winfocus = TAILQ_FIRST(wl);
4203                         if (winfocus == cur_focus)
4204                                 break;
4205                 } while (winfocus != NULL &&
4206                     (ICONIC(winfocus) || winfocus->id == cur_focus->transient));
4207                 break;
4208         case SWM_ARG_ID_FOCUSMAIN:
4209                 if (cur_focus == NULL)
4210                         goto out;
4211
4212                 winfocus = TAILQ_FIRST(wl);
4213                 if (winfocus == cur_focus)
4214                         winfocus = cur_focus->ws->focus_prev;
4215                 break;
4216         case SWM_ARG_ID_FOCUSURGENT:
4217                 /* Search forward for the next urgent window. */
4218                 winfocus = NULL;
4219                 head = cur_focus;
4220
4221                 for (i = 0; i <= workspace_limit; ++i) {
4222                         if (head == NULL)
4223                                 head = TAILQ_FIRST(&r->s->ws[(ws->idx + i) %
4224                                     workspace_limit].winlist);
4225
4226                         while (head != NULL &&
4227                             (head = TAILQ_NEXT(head, entry)) != NULL) {
4228                                 if (head == cur_focus) {
4229                                         winfocus = cur_focus;
4230                                         break;
4231                                 }
4232                                 if (xcb_icccm_get_wm_hints_reply(conn,
4233                                     xcb_icccm_get_wm_hints(conn, head->id),
4234                                     &hints, NULL) != 0 &&
4235                                     xcb_icccm_wm_hints_get_urgency(&hints)) {
4236                                         winfocus = head;
4237                                         break;
4238                                 }
4239                         }
4240
4241                         if (winfocus != NULL)
4242                                 break;
4243                 }
4244
4245                 /* Switch ws if new focus is on a different ws. */
4246                 if (winfocus != NULL && winfocus->ws != ws) {
4247                         a.id = winfocus->ws->idx;
4248                         switchws(r, &a);
4249                 }
4250                 break;
4251         default:
4252                 goto out;
4253         }
4254
4255         if (clear_maximized(ws) > 0)
4256                 stack();
4257
4258         focus_win(get_focus_magic(winfocus));
4259         focus_flush();
4260
4261 out:
4262         DNPRINTF(SWM_D_FOCUS, "focus: done\n");
4263 }
4264
4265 void
4266 cycle_layout(struct swm_region *r, union arg *args)
4267 {
4268         struct workspace        *ws = r->ws;
4269
4270         /* suppress unused warning since var is needed */
4271         (void)args;
4272
4273         DNPRINTF(SWM_D_EVENT, "cycle_layout: workspace: %d\n", ws->idx);
4274
4275         ws->cur_layout++;
4276         if (ws->cur_layout->l_stack == NULL)
4277                 ws->cur_layout = &layouts[0];
4278
4279         clear_maximized(ws);
4280
4281         stack();
4282         bar_draw();
4283
4284         focus_win(get_region_focus(r));
4285
4286         focus_flush();
4287 }
4288
4289 void
4290 stack_config(struct swm_region *r, union arg *args)
4291 {
4292         struct workspace        *ws = r->ws;
4293
4294         DNPRINTF(SWM_D_STACK, "stack_config: id: %d workspace: %d\n",
4295             args->id, ws->idx);
4296
4297         if (clear_maximized(ws) > 0)
4298                 stack();
4299
4300         if (ws->cur_layout->l_config != NULL)
4301                 ws->cur_layout->l_config(ws, args->id);
4302
4303         if (args->id != SWM_ARG_ID_STACKINIT)
4304                 stack();
4305         bar_draw();
4306
4307         focus_flush();
4308 }
4309
4310 void
4311 stack(void) {
4312         struct swm_geometry     g;
4313         struct swm_region       *r, *r_prev = NULL;
4314         int                     i, num_screens;
4315         uint32_t                val[2];
4316 #ifdef SWM_DEBUG
4317         int j;
4318 #endif
4319
4320         DNPRINTF(SWM_D_STACK, "stack: begin\n");
4321
4322         num_screens = get_screen_count();
4323         for (i = 0; i < num_screens; i++) {
4324 #ifdef SWM_DEBUG
4325                 j = 0;
4326 #endif
4327                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
4328                         /* Adjust stack area for region bar and padding. */
4329                         g = r->g;
4330                         g.x += region_padding;
4331                         g.y += region_padding;
4332                         g.w -= 2 * border_width + 2 * region_padding;
4333                         g.h -= 2 * border_width + 2 * region_padding;
4334                         if (bar_enabled && r->ws->bar_enabled) {
4335                                 if (!bar_at_bottom)
4336                                         g.y += bar_height;
4337                                 g.h -= bar_height;
4338                         }
4339
4340                         DNPRINTF(SWM_D_STACK, "stack: workspace: %d (screen: "
4341                             "%d, region: %d), (x,y) WxH: (%d,%d) %d x %d\n",
4342                             r->ws->idx, i, j++, g.x, g.y, g.w, g.h);
4343
4344                         if (r_prev) {
4345                                 /* Stack bar/input relative to prev. region. */
4346                                 val[1] = XCB_STACK_MODE_ABOVE;
4347
4348                                 val[0] = r_prev->id;
4349                                 DNPRINTF(SWM_D_STACK, "stack: region input %#x "
4350                                     "relative to %#x.\n", r->id, val[0]);
4351                                 xcb_configure_window(conn, r->id,
4352                                     XCB_CONFIG_WINDOW_SIBLING |
4353                                     XCB_CONFIG_WINDOW_STACK_MODE, val);
4354
4355                                 val[0] = r_prev->bar->id;
4356                                 DNPRINTF(SWM_D_STACK, "stack: region bar %#x "
4357                                     "relative to %#x.\n", r->bar->id, val[0]);
4358                                 xcb_configure_window(conn, r->bar->id,
4359                                     XCB_CONFIG_WINDOW_SIBLING |
4360                                     XCB_CONFIG_WINDOW_STACK_MODE, val);
4361                         }
4362
4363                         r->ws->cur_layout->l_stack(r->ws, &g);
4364                         r->ws->cur_layout->l_string(r->ws);
4365                         /* save r so we can track region changes */
4366                         r->ws->old_r = r;
4367                         r_prev = r;
4368                 }
4369         }
4370         if (font_adjusted)
4371                 font_adjusted--;
4372
4373         DNPRINTF(SWM_D_STACK, "stack: end\n");
4374 }
4375
4376 void
4377 store_float_geom(struct ws_win *win)
4378 {
4379         if (win == NULL || win->ws->r == NULL)
4380                 return;
4381
4382         /* retain window geom and region geom */
4383         win->g_float = win->g;
4384         win->g_float.x -= X(win->ws->r);
4385         win->g_float.y -= Y(win->ws->r);
4386         win->g_floatvalid = 1;
4387         DNPRINTF(SWM_D_MISC, "store_float_geom: win %#x, g: (%d,%d)"
4388             " %d x %d, g_float: (%d,%d) %d x %d\n", win->id, X(win), Y(win),
4389             WIDTH(win), HEIGHT(win), win->g_float.x, win->g_float.y,
4390             win->g_float.w, win->g_float.h);
4391 }
4392
4393 void
4394 load_float_geom(struct ws_win *win)
4395 {
4396         if (win == NULL || win->ws->r == NULL)
4397                 return;
4398
4399         if (win->g_floatvalid) {
4400                 win->g = win->g_float;
4401                 X(win) += X(win->ws->r);
4402                 Y(win) += Y(win->ws->r);
4403                 DNPRINTF(SWM_D_MISC, "load_float_geom: win %#x, g: (%d,%d)"
4404                     "%d x %d\n", win->id, X(win), Y(win), WIDTH(win),
4405                     HEIGHT(win));
4406         } else {
4407                 DNPRINTF(SWM_D_MISC, "load_float_geom: win %#x, g_float "
4408                     "is not set.\n", win->id);
4409         }
4410 }
4411
4412 void
4413 update_floater(struct ws_win *win)
4414 {
4415         struct workspace        *ws;
4416         struct swm_region       *r;
4417
4418         if (win == NULL)
4419                 return;
4420
4421         ws = win->ws;
4422
4423         if ((r = ws->r) == NULL)
4424                 return;
4425
4426         DNPRINTF(SWM_D_MISC, "update_floater: win %#x\n", win->id);
4427
4428         if (FULLSCREEN(win)) {
4429                 /* _NET_WM_FULLSCREEN: fullscreen without border. */
4430                 if (!win->g_floatvalid)
4431                         store_float_geom(win);
4432
4433                 win->g = r->g;
4434                 win->bordered = 0;
4435         } else if (MAXIMIZED(win)) {
4436                 /* Maximize: like a single stacked window. */
4437                 if (!win->g_floatvalid)
4438                         store_float_geom(win);
4439
4440                 win->g = r->g;
4441
4442                 if (bar_enabled && ws->bar_enabled) {
4443                         win->bordered = 1;
4444                         if (!bar_at_bottom)
4445                                 Y(win) += bar_height;
4446                         HEIGHT(win) -= bar_height;
4447                 } else if (disable_border) {
4448                         win->bordered = 0;
4449                 } else {
4450                         win->bordered = 1;
4451                 }
4452
4453                 if (win->bordered) {
4454                         HEIGHT(win) -= 2 * border_width;
4455                         WIDTH(win) -= 2 * border_width;
4456                 }
4457         } else {
4458                 /* Normal floating window. */
4459                 /* Update geometry if new region. */
4460                 if (r != ws->old_r)
4461                         load_float_geom(win);
4462
4463                 if ((win->quirks & SWM_Q_FULLSCREEN) &&
4464                     WIDTH(win) >= WIDTH(r) && HEIGHT(win) >= HEIGHT(r)) {
4465                         /* Remove border for FULLSCREEN quirk. */
4466                         win->bordered = 0;
4467                 } else if (!MANUAL(win)) {
4468                         if (TRANS(win) && (win->quirks & SWM_Q_TRANSSZ)) {
4469                                 /* Adjust size on TRANSSZ quirk. */
4470                                 WIDTH(win) = (double)WIDTH(r) * dialog_ratio;
4471                                 HEIGHT(win) = (double)HEIGHT(r) * dialog_ratio;
4472                         }
4473
4474                         if (!(win->quirks & SWM_Q_ANYWHERE)) {
4475                                 /*
4476                                  * Floaters and transients are auto-centred
4477                                  * unless manually moved, resized or ANYWHERE
4478                                  * quirk is set.
4479                                  */
4480                                 X(win) = X(r) + (WIDTH(r) - WIDTH(win)) / 2 -
4481                                     BORDER(win);
4482                                 Y(win) = Y(r) + (HEIGHT(r) - HEIGHT(win)) / 2 -
4483                                     BORDER(win);
4484                                 store_float_geom(win);
4485                         }
4486                 }
4487         }
4488
4489         /* Ensure at least 1 pixel of the window is in the region. */
4490         region_containment(win, r, SWM_CW_ALLSIDES);
4491
4492         update_window(win);
4493 }
4494
4495 /*
4496  * Send keystrokes to terminal to decrease/increase the font size as the
4497  * window size changes.
4498  */
4499 void
4500 adjust_font(struct ws_win *win)
4501 {
4502         if (!(win->quirks & SWM_Q_XTERM_FONTADJ) ||
4503             ABOVE(win) || TRANS(win))
4504                 return;
4505
4506         if (win->sh.width_inc && win->last_inc != win->sh.width_inc &&
4507             WIDTH(win) / win->sh.width_inc < term_width &&
4508             win->font_steps < SWM_MAX_FONT_STEPS) {
4509                 win->font_size_boundary[win->font_steps] =
4510                     (win->sh.width_inc * term_width) + win->sh.base_width;
4511                 win->font_steps++;
4512                 font_adjusted++;
4513                 win->last_inc = win->sh.width_inc;
4514                 fake_keypress(win, XK_KP_Subtract, XCB_MOD_MASK_SHIFT);
4515         } else if (win->font_steps && win->last_inc != win->sh.width_inc &&
4516             WIDTH(win) > win->font_size_boundary[win->font_steps - 1]) {
4517                 win->font_steps--;
4518                 font_adjusted++;
4519                 win->last_inc = win->sh.width_inc;
4520                 fake_keypress(win, XK_KP_Add, XCB_MOD_MASK_SHIFT);
4521         }
4522 }
4523
4524 #define SWAPXY(g)       do {                            \
4525         int tmp;                                        \
4526         tmp = (g)->y; (g)->y = (g)->x; (g)->x = tmp;    \
4527         tmp = (g)->h; (g)->h = (g)->w; (g)->w = tmp;    \
4528 } while (0)
4529 void
4530 stack_master(struct workspace *ws, struct swm_geometry *g, int rot, int flip)
4531 {
4532         struct swm_geometry     win_g, r_g = *g;
4533         struct ws_win           *win;
4534         int                     i, j, s, stacks;
4535         int                     w_inc = 1, h_inc, w_base = 1, h_base;
4536         int                     hrh, extra = 0, h_slice, last_h = 0;
4537         int                     split, colno, winno, mwin, msize, mscale;
4538         int                     remain, missing, v_slice, reconfigure = 0;
4539         int                     bordered = 1;
4540
4541         DNPRINTF(SWM_D_STACK, "stack_master: workspace: %d, rot: %s, "
4542             "flip: %s\n", ws->idx, YESNO(rot), YESNO(flip));
4543
4544         /* Prepare tiling variables, if needed. */
4545         if ((winno = count_win(ws, 0)) > 0) {
4546                 /* Find first tiled window. */
4547                 TAILQ_FOREACH(win, &ws->winlist, entry)
4548                         if (!FLOATING(win) && !ICONIC(win))
4549                                 break;
4550
4551                 /* Take into account size hints of first tiled window. */
4552                 if (rot) {
4553                         w_inc = win->sh.width_inc;
4554                         w_base = win->sh.base_width;
4555                         mwin = ws->l_state.horizontal_mwin;
4556                         mscale = ws->l_state.horizontal_msize;
4557                         stacks = ws->l_state.horizontal_stacks;
4558                         SWAPXY(&r_g);
4559                 } else {
4560                         w_inc = win->sh.height_inc;
4561                         w_base = win->sh.base_height;
4562                         mwin = ws->l_state.vertical_mwin;
4563                         mscale = ws->l_state.vertical_msize;
4564                         stacks = ws->l_state.vertical_stacks;
4565                 }
4566                 win_g = r_g;
4567
4568                 if (stacks > winno - mwin)
4569                         stacks = winno - mwin;
4570                 if (stacks < 1)
4571                         stacks = 1;
4572
4573                 h_slice = r_g.h / SWM_H_SLICE;
4574                 if (mwin && winno > mwin) {
4575                         v_slice = r_g.w / SWM_V_SLICE;
4576
4577                         split = mwin;
4578                         colno = split;
4579                         win_g.w = v_slice * mscale;
4580
4581                         if (w_inc > 1 && w_inc < v_slice) {
4582                                 /* Adjust for requested size increment. */
4583                                 remain = (win_g.w - w_base) % w_inc;
4584                                 win_g.w -= remain;
4585                         }
4586
4587                         msize = win_g.w;
4588                         if (flip)
4589                                 win_g.x += r_g.w - msize;
4590                 } else {
4591                         msize = -2;
4592                         colno = split = winno / stacks;
4593                         win_g.w = ((r_g.w - (stacks * 2 * border_width) +
4594                             2 * border_width) / stacks);
4595                 }
4596                 hrh = r_g.h / colno;
4597                 extra = r_g.h - (colno * hrh);
4598                 win_g.h = hrh - 2 * border_width;
4599                 i = j = 0, s = stacks;
4600         }
4601
4602         /* Update window geometry. */
4603         TAILQ_FOREACH(win, &ws->winlist, entry) {
4604                 if (ICONIC(win))
4605                         continue;
4606
4607                 if (FLOATING(win)) {
4608                         update_floater(win);
4609                         continue;
4610                 }
4611
4612                 /* Tiled. */
4613                 if (split && i == split) {
4614                         colno = (winno - mwin) / stacks;
4615                         if (s <= (winno - mwin) % stacks)
4616                                 colno++;
4617                         split += colno;
4618                         hrh = r_g.h / colno;
4619                         extra = r_g.h - (colno * hrh);
4620
4621                         if (!flip)
4622                                 win_g.x += win_g.w + 2 * border_width +
4623                                     tile_gap;
4624
4625                         win_g.w = (r_g.w - msize -
4626                             (stacks * (2 * border_width + tile_gap))) / stacks;
4627                         if (s == 1)
4628                                 win_g.w += (r_g.w - msize -
4629                                     (stacks * (2 * border_width + tile_gap))) %
4630                                     stacks;
4631
4632                         if (flip)
4633                                 win_g.x -= win_g.w + 2 * border_width +
4634                                     tile_gap;
4635                         s--;
4636                         j = 0;
4637                 }
4638
4639                 win_g.h = hrh - 2 * border_width - tile_gap;
4640
4641                 if (rot) {
4642                         h_inc = win->sh.width_inc;
4643                         h_base = win->sh.base_width;
4644                 } else {
4645                         h_inc = win->sh.height_inc;
4646                         h_base = win->sh.base_height;
4647                 }
4648
4649                 if (j == colno - 1) {
4650                         win_g.h = hrh + extra;
4651                 } else if (h_inc > 1 && h_inc < h_slice) {
4652                         /* adjust for window's requested size increment */
4653                         remain = (win_g.h - h_base) % h_inc;
4654                         missing = h_inc - remain;
4655
4656                         if (missing <= extra || j == 0) {
4657                                 extra -= missing;
4658                                 win_g.h += missing;
4659                         } else {
4660                                 win_g.h -= remain;
4661                                 extra += remain;
4662                         }
4663                 }
4664
4665                 if (j == 0)
4666                         win_g.y = r_g.y;
4667                 else
4668                         win_g.y += last_h + 2 * border_width + tile_gap;
4669
4670                 if (disable_border && !(bar_enabled && ws->bar_enabled) &&
4671                     winno == 1){
4672                         bordered = 0;
4673                         win_g.w += 2 * border_width;
4674                         win_g.h += 2 * border_width;
4675                 } else {
4676                         bordered = 1;
4677                 }
4678
4679                 if (rot) {
4680                         if (X(win) != win_g.y || Y(win) != win_g.x ||
4681                             WIDTH(win) != win_g.h || HEIGHT(win) != win_g.w) {
4682                                 reconfigure = 1;
4683                                 X(win) = win_g.y;
4684                                 Y(win) = win_g.x;
4685                                 WIDTH(win) = win_g.h;
4686                                 HEIGHT(win) = win_g.w;
4687                         }
4688                 } else {
4689                         if (X(win) != win_g.x || Y(win) != win_g.y ||
4690                             WIDTH(win) != win_g.w || HEIGHT(win) != win_g.h) {
4691                                 reconfigure = 1;
4692                                 X(win) = win_g.x;
4693                                 Y(win) = win_g.y;
4694                                 WIDTH(win) = win_g.w;
4695                                 HEIGHT(win) = win_g.h;
4696                         }
4697                 }
4698
4699                 if (bordered != win->bordered) {
4700                         reconfigure = 1;
4701                         win->bordered = bordered;
4702                 }
4703
4704                 if (reconfigure) {
4705                         adjust_font(win);
4706                         update_window(win);
4707                 }
4708
4709                 last_h = win_g.h;
4710                 i++;
4711                 j++;
4712         }
4713
4714         /* Stack all windows from bottom up. */
4715         TAILQ_FOREACH_REVERSE(win, &ws->stack, ws_win_stack, stack_entry)
4716                 if (!ICONIC(win))
4717                         update_win_stacking(win);
4718
4719         /* Map all windows from top down. */
4720         TAILQ_FOREACH(win, &ws->stack, stack_entry)
4721                 if (!ICONIC(win))
4722                         map_window(win);
4723
4724         DNPRINTF(SWM_D_STACK, "stack_master: done\n");
4725 }
4726
4727 void
4728 vertical_config(struct workspace *ws, int id)
4729 {
4730         DNPRINTF(SWM_D_STACK, "vertical_config: id: %d, workspace: %d\n",
4731             id, ws->idx);
4732
4733         switch (id) {
4734         case SWM_ARG_ID_STACKRESET:
4735         case SWM_ARG_ID_STACKINIT:
4736                 ws->l_state.vertical_msize = SWM_V_SLICE / 2;
4737                 ws->l_state.vertical_mwin = 1;
4738                 ws->l_state.vertical_stacks = 1;
4739                 break;
4740         case SWM_ARG_ID_MASTERSHRINK:
4741                 if (ws->l_state.vertical_msize > 1)
4742                         ws->l_state.vertical_msize--;
4743                 break;
4744         case SWM_ARG_ID_MASTERGROW:
4745                 if (ws->l_state.vertical_msize < SWM_V_SLICE - 1)
4746                         ws->l_state.vertical_msize++;
4747                 break;
4748         case SWM_ARG_ID_MASTERADD:
4749                 ws->l_state.vertical_mwin++;
4750                 break;
4751         case SWM_ARG_ID_MASTERDEL:
4752                 if (ws->l_state.vertical_mwin > 0)
4753                         ws->l_state.vertical_mwin--;
4754                 break;
4755         case SWM_ARG_ID_STACKINC:
4756                 ws->l_state.vertical_stacks++;
4757                 break;
4758         case SWM_ARG_ID_STACKDEC:
4759                 if (ws->l_state.vertical_stacks > 1)
4760                         ws->l_state.vertical_stacks--;
4761                 break;
4762         case SWM_ARG_ID_FLIPLAYOUT:
4763                 ws->l_state.vertical_flip = !ws->l_state.vertical_flip;
4764                 break;
4765         default:
4766                 return;
4767         }
4768 }
4769
4770 void
4771 vertical_stack(struct workspace *ws, struct swm_geometry *g)
4772 {
4773         DNPRINTF(SWM_D_STACK, "vertical_stack: workspace: %d\n", ws->idx);
4774
4775         stack_master(ws, g, 0, ws->l_state.vertical_flip);
4776 }
4777
4778 void
4779 horizontal_config(struct workspace *ws, int id)
4780 {
4781         DNPRINTF(SWM_D_STACK, "horizontal_config: workspace: %d\n", ws->idx);
4782
4783         switch (id) {
4784         case SWM_ARG_ID_STACKRESET:
4785         case SWM_ARG_ID_STACKINIT:
4786                 ws->l_state.horizontal_mwin = 1;
4787                 ws->l_state.horizontal_msize = SWM_H_SLICE / 2;
4788                 ws->l_state.horizontal_stacks = 1;
4789                 break;
4790         case SWM_ARG_ID_MASTERSHRINK:
4791                 if (ws->l_state.horizontal_msize > 1)
4792                         ws->l_state.horizontal_msize--;
4793                 break;
4794         case SWM_ARG_ID_MASTERGROW:
4795                 if (ws->l_state.horizontal_msize < SWM_H_SLICE - 1)
4796                         ws->l_state.horizontal_msize++;
4797                 break;
4798         case SWM_ARG_ID_MASTERADD:
4799                 ws->l_state.horizontal_mwin++;
4800                 break;
4801         case SWM_ARG_ID_MASTERDEL:
4802                 if (ws->l_state.horizontal_mwin > 0)
4803                         ws->l_state.horizontal_mwin--;
4804                 break;
4805         case SWM_ARG_ID_STACKINC:
4806                 ws->l_state.horizontal_stacks++;
4807                 break;
4808         case SWM_ARG_ID_STACKDEC:
4809                 if (ws->l_state.horizontal_stacks > 1)
4810                         ws->l_state.horizontal_stacks--;
4811                 break;
4812         case SWM_ARG_ID_FLIPLAYOUT:
4813                 ws->l_state.horizontal_flip = !ws->l_state.horizontal_flip;
4814                 break;
4815         default:
4816                 return;
4817         }
4818 }
4819
4820 void
4821 horizontal_stack(struct workspace *ws, struct swm_geometry *g)
4822 {
4823         DNPRINTF(SWM_D_STACK, "horizontal_stack: workspace: %d\n", ws->idx);
4824
4825         stack_master(ws, g, 1, ws->l_state.horizontal_flip);
4826 }
4827
4828 /* fullscreen view */
4829 void
4830 max_stack(struct workspace *ws, struct swm_geometry *g)
4831 {
4832         struct swm_geometry     gg = *g;
4833         struct ws_win           *w, *win = NULL, *parent = NULL;
4834         int                     winno;
4835
4836         DNPRINTF(SWM_D_STACK, "max_stack: workspace: %d\n", ws->idx);
4837
4838         if (ws == NULL)
4839                 return;
4840
4841         winno = count_win(ws, 0);
4842         if (winno == 0 && count_win(ws, 1) == 0)
4843                 return;
4844
4845         /* Figure out which top level window should be visible. */
4846         if (ws->focus_pending)
4847                 win = ws->focus_pending;
4848         else if (ws->focus)
4849                 win = ws->focus;
4850         else if (ws->focus_prev)
4851                 win = ws->focus_prev;
4852         else
4853                 win = TAILQ_FIRST(&ws->winlist);
4854
4855         DNPRINTF(SWM_D_STACK, "max_stack: win: %#x\n", win->id);
4856
4857         /* Update window geometry. */
4858         TAILQ_FOREACH(w, &ws->winlist, entry) {
4859                 if (ICONIC(w))
4860                         continue;
4861
4862                 if (TRANS(w)) {
4863                         update_floater(w);
4864                         continue;
4865                 }
4866
4867                 /* Set maximized flag for all maxed windows. */
4868                 if (!MAXIMIZED(w)) {
4869                         /* Preserve floating geometry. */
4870                         if (ABOVE(w))
4871                                 store_float_geom(w);
4872
4873                         ewmh_apply_flags(w, w->ewmh_flags | EWMH_F_MAXIMIZED);
4874                         ewmh_update_wm_state(w);
4875                 }
4876
4877                 /* Only reconfigure if necessary. */
4878                 if (X(w) != gg.x || Y(w) != gg.y || WIDTH(w) != gg.w ||
4879                     HEIGHT(w) != gg.h) {
4880                         w->g = gg;
4881                         if (bar_enabled && ws->bar_enabled){
4882                                 w->bordered = 1;
4883                         } else {
4884                                 w->bordered = 0;
4885                                 WIDTH(w) += 2 * border_width;
4886                                 HEIGHT(w) += 2 * border_width;
4887                         }
4888
4889                         update_window(w);
4890                 }
4891         }
4892
4893         if (TRANS(win)) {
4894                 parent = find_window(win->transient);
4895                 raise_window(parent);
4896
4897                 TAILQ_FOREACH(w, &ws->stack, stack_entry)
4898                         if (w->transient == parent->id)
4899                                 raise_window(w);
4900         }
4901
4902         raise_window(win);
4903
4904         TAILQ_FOREACH(w, &ws->stack, stack_entry)
4905                 if (w->transient == win->id)
4906                         raise_window(w);
4907
4908         /* Map all windows. */
4909         TAILQ_FOREACH(w, &ws->stack, stack_entry)
4910                 if (!ICONIC(w))
4911                         map_window(w);
4912 }
4913
4914 void
4915 send_to_rg(struct swm_region *r, union arg *args)
4916 {
4917         int                     ridx = args->id, i, num_screens;
4918         struct swm_region       *rr = NULL;
4919         union arg               a;
4920
4921         num_screens = get_screen_count();
4922         /* do nothing if we don't have more than one screen */
4923         if (!(num_screens > 1 || outputs > 1))
4924                 return;
4925
4926         DNPRINTF(SWM_D_FOCUS, "send_to_rg: id: %d\n", ridx);
4927
4928         rr = TAILQ_FIRST(&r->s->rl);
4929         for (i = 0; i < ridx && rr != NULL; ++i)
4930                 rr = TAILQ_NEXT(rr, entry);
4931
4932         if (rr == NULL)
4933                 return;
4934
4935         a.id = rr->ws->idx;
4936
4937         send_to_ws(r, &a);
4938 }
4939
4940 struct swm_region *
4941 region_under(struct swm_screen *s, int x, int y)
4942 {
4943         struct swm_region       *r = NULL;
4944
4945         TAILQ_FOREACH(r, &s->rl, entry) {
4946                 DNPRINTF(SWM_D_MISC, "region_under: ws: %d, region g: (%d,%d) "
4947                     "%d x %d, coords: (%d,%d)\n", r->ws->idx, X(r), Y(r),
4948                     WIDTH(r), HEIGHT(r), x, y);
4949                 if (X(r) <= x && x < MAX_X(r))
4950                         if (Y(r) <= y && y < MAX_Y(r))
4951                                 return (r);
4952         }
4953
4954         return (NULL);
4955 }
4956
4957 void
4958 send_to_ws(struct swm_region *r, union arg *args)
4959 {
4960         int                     wsid = args->id;
4961         struct ws_win           *win = NULL;
4962
4963         if (r && r->ws && r->ws->focus)
4964                 win = r->ws->focus;
4965         else
4966                 return;
4967
4968         DNPRINTF(SWM_D_MOVE, "send_to_ws: win %#x, ws %d\n", win->id, wsid);
4969
4970         if (wsid >= workspace_limit)
4971                 return;
4972
4973         if (win->ws->idx == wsid)
4974                 return;
4975
4976         win_to_ws(win, wsid, 1);
4977
4978         ewmh_apply_flags(win, win->ewmh_flags & ~EWMH_F_MAXIMIZED);
4979         ewmh_update_wm_state(win);
4980
4981         /* Restack and set new focus. */
4982         stack();
4983
4984         if (focus_mode != SWM_FOCUS_FOLLOW) {
4985                 if (r->ws->focus_pending) {
4986                         focus_win(r->ws->focus_pending);
4987                         r->ws->focus_pending = NULL;
4988                 } else {
4989                         xcb_set_input_focus(conn,
4990                             XCB_INPUT_FOCUS_PARENT, r->id,
4991                             XCB_CURRENT_TIME);
4992                 }
4993         }
4994
4995         focus_flush();
4996 }
4997
4998 void
4999 win_to_ws(struct ws_win *win, int wsid, int unfocus)
5000 {
5001         struct ws_win           *parent;
5002         struct workspace        *ws, *nws, *pws;
5003
5004         if (wsid >= workspace_limit)
5005                 return;
5006
5007         if (win->ws->idx == wsid)
5008                 return;
5009
5010         ws = win->ws;
5011         nws = &win->s->ws[wsid];
5012
5013         DNPRINTF(SWM_D_MOVE, "win_to_ws: win %#x, ws %d -> %d\n", win->id,
5014             ws->idx, wsid);
5015
5016         if (focus_mode != SWM_FOCUS_FOLLOW)
5017                 ws->focus_pending = get_focus_prev(win);
5018
5019         /* Move the parent if this is a transient window. */
5020         if (TRANS(win)) {
5021                 parent = find_window(win->transient);
5022                 if (parent) {
5023                         pws = parent->ws;
5024                         /* Set new focus in parent's ws if needed. */
5025                         if (pws->focus == parent) {
5026                                 if (focus_mode != SWM_FOCUS_FOLLOW)
5027                                         pws->focus_pending =
5028                                             get_focus_prev(parent);
5029
5030                                 unfocus_win(parent);
5031
5032                                 if (focus_mode != SWM_FOCUS_FOLLOW) {
5033                                         pws->focus = pws->focus_pending;
5034                                         pws->focus_pending = NULL;
5035                                 }
5036                         }
5037
5038                         /* Don't unmap parent if new ws is visible */
5039                         if (nws->r == NULL)
5040                                 unmap_window(parent);
5041
5042                         /* Transfer */
5043                         TAILQ_REMOVE(&ws->winlist, parent, entry);
5044                         TAILQ_REMOVE(&ws->stack, parent, stack_entry);
5045                         TAILQ_INSERT_TAIL(&nws->winlist, parent, entry);
5046                         TAILQ_INSERT_TAIL(&nws->stack, parent, stack_entry);
5047                         parent->ws = nws;
5048
5049                         DNPRINTF(SWM_D_PROP, "win_to_ws: set property: "
5050                             "_NET_WM_DESKTOP: %d\n", wsid);
5051                         xcb_change_property(conn, XCB_PROP_MODE_REPLACE,
5052                             parent->id, ewmh[_NET_WM_DESKTOP].atom,
5053                             XCB_ATOM_CARDINAL, 32, 1, &wsid);
5054                 }
5055         }
5056
5057         if (unfocus)
5058                 unfocus_win(win);
5059
5060         /* Don't unmap if new ws is visible */
5061         if (nws->r == NULL)
5062                 unmap_window(win);
5063
5064         /* Transfer */
5065         TAILQ_REMOVE(&ws->winlist, win, entry);
5066         TAILQ_REMOVE(&ws->stack, win, stack_entry);
5067         TAILQ_INSERT_TAIL(&nws->winlist, win, entry);
5068         TAILQ_INSERT_TAIL(&nws->stack, win, stack_entry);
5069         win->ws = nws;
5070
5071         /* Set focus on new ws. */
5072         unfocus_win(nws->focus);
5073         nws->focus = win;
5074
5075         /* Update the window's workspace property: _NET_WM_DESKTOP */
5076         DNPRINTF(SWM_D_PROP, "win_to_ws: set property: "
5077             "_NET_WM_DESKTOP: %d\n", wsid);
5078         xcb_change_property(conn, XCB_PROP_MODE_REPLACE, win->id,
5079             ewmh[_NET_WM_DESKTOP].atom, XCB_ATOM_CARDINAL, 32, 1, &wsid);
5080
5081         ewmh_update_client_list();
5082
5083         DNPRINTF(SWM_D_MOVE, "win_to_ws: done.\n");
5084 }
5085
5086 void
5087 pressbutton(struct swm_region *r, union arg *args)
5088 {
5089         /* suppress unused warning since var is needed */
5090         (void)r;
5091
5092         xcb_test_fake_input(conn, XCB_BUTTON_PRESS, args->id,
5093             XCB_CURRENT_TIME, XCB_WINDOW_NONE, 0, 0, 0);
5094         xcb_test_fake_input(conn, XCB_BUTTON_RELEASE, args->id,
5095             XCB_CURRENT_TIME, XCB_WINDOW_NONE, 0, 0, 0);
5096 }
5097
5098 void
5099 raise_toggle(struct swm_region *r, union arg *args)
5100 {
5101         /* suppress unused warning since var is needed */
5102         (void)args;
5103
5104         if (r == NULL || r->ws == NULL)
5105                 return;
5106
5107         if (r->ws->focus && MAXIMIZED(r->ws->focus))
5108                 return;
5109
5110         r->ws->always_raise = !r->ws->always_raise;
5111
5112         /* bring floaters back to top */
5113         if (!r->ws->always_raise)
5114                 stack();
5115
5116         focus_flush();
5117 }
5118
5119 void
5120 iconify(struct swm_region *r, union arg *args)
5121 {
5122         struct ws_win           *w;
5123         /* suppress unused warning since var is needed */
5124         (void)args;
5125
5126         if ((w = r->ws->focus) == NULL)
5127                 return;
5128
5129         ewmh_apply_flags(w, w->ewmh_flags | EWMH_F_HIDDEN);
5130         ewmh_update_wm_state(w);
5131
5132         stack();
5133
5134         focus_flush();
5135 }
5136
5137 char *
5138 get_win_name(xcb_window_t win)
5139 {
5140         char                            *name = NULL;
5141         xcb_get_property_cookie_t       c;
5142         xcb_get_property_reply_t        *r;
5143
5144         /* First try _NET_WM_NAME for UTF-8. */
5145         c = xcb_get_property(conn, 0, win, ewmh[_NET_WM_NAME].atom,
5146             XCB_GET_PROPERTY_TYPE_ANY, 0, UINT_MAX);
5147         r = xcb_get_property_reply(conn, c, NULL);
5148         if (r && r->type == XCB_NONE) {
5149                 free(r);
5150                 /* Use WM_NAME instead; no UTF-8. */
5151                 c = xcb_get_property(conn, 0, win, XCB_ATOM_WM_NAME,
5152                     XCB_GET_PROPERTY_TYPE_ANY, 0, UINT_MAX);
5153                 r = xcb_get_property_reply(conn, c, NULL);
5154         }
5155
5156         if (r && r->type != XCB_NONE && r->length > 0)
5157                 name = strndup(xcb_get_property_value(r),
5158                     xcb_get_property_value_length(r));
5159         else
5160                 name = strdup("");
5161
5162         if (name == NULL)
5163                 err(1, "get_win_name: failed to allocate memory.");
5164
5165         free(r);
5166
5167         return (name);
5168 }
5169
5170 void
5171 uniconify(struct swm_region *r, union arg *args)
5172 {
5173         struct ws_win           *win;
5174         FILE                    *lfile;
5175         char                    *name;
5176         int                     count = 0;
5177
5178         DNPRINTF(SWM_D_MISC, "uniconify\n");
5179
5180         if (r == NULL || r->ws == NULL)
5181                 return;
5182
5183         /* make sure we have anything to uniconify */
5184         TAILQ_FOREACH(win, &r->ws->winlist, entry) {
5185                 if (win->ws == NULL)
5186                         continue; /* should never happen */
5187                 if (!ICONIC(win))
5188                         continue;
5189                 count++;
5190         }
5191
5192         DNPRINTF(SWM_D_MISC, "uniconify: count: %d\n", count);
5193
5194         if (count == 0)
5195                 return;
5196
5197         search_r = r;
5198         search_resp_action = SWM_SEARCH_UNICONIFY;
5199
5200         spawn_select(r, args, "search", &searchpid);
5201
5202         if ((lfile = fdopen(select_list_pipe[1], "w")) == NULL)
5203                 return;
5204
5205         TAILQ_FOREACH(win, &r->ws->winlist, entry) {
5206                 if (win->ws == NULL)
5207                         continue; /* should never happen */
5208                 if (!ICONIC(win))
5209                         continue;
5210
5211                 name = get_win_name(win->id);
5212                 fprintf(lfile, "%s.%u\n", name, win->id);
5213                 free(name);
5214         }
5215
5216         fclose(lfile);
5217 }
5218
5219 void
5220 name_workspace(struct swm_region *r, union arg *args)
5221 {
5222         FILE                    *lfile;
5223
5224         DNPRINTF(SWM_D_MISC, "name_workspace\n");
5225
5226         if (r == NULL)
5227                 return;
5228
5229         search_r = r;
5230         search_resp_action = SWM_SEARCH_NAME_WORKSPACE;
5231
5232         spawn_select(r, args, "name_workspace", &searchpid);
5233
5234         if ((lfile = fdopen(select_list_pipe[1], "w")) == NULL)
5235                 return;
5236
5237         fprintf(lfile, "%s", "");
5238         fclose(lfile);
5239 }
5240
5241 void
5242 search_workspace(struct swm_region *r, union arg *args)
5243 {
5244         int                     i;
5245         struct workspace        *ws;
5246         FILE                    *lfile;
5247
5248         DNPRINTF(SWM_D_MISC, "search_workspace\n");
5249
5250         if (r == NULL)
5251                 return;
5252
5253         search_r = r;
5254         search_resp_action = SWM_SEARCH_SEARCH_WORKSPACE;
5255
5256         spawn_select(r, args, "search", &searchpid);
5257
5258         if ((lfile = fdopen(select_list_pipe[1], "w")) == NULL)
5259                 return;
5260
5261         for (i = 0; i < workspace_limit; i++) {
5262                 ws = &r->s->ws[i];
5263                 if (ws == NULL)
5264                         continue;
5265                 fprintf(lfile, "%d%s%s\n", ws->idx + 1,
5266                     (ws->name ? ":" : ""), (ws->name ? ws->name : ""));
5267         }
5268
5269         fclose(lfile);
5270 }
5271
5272 void
5273 search_win_cleanup(void)
5274 {
5275         struct search_window    *sw = NULL;
5276
5277         while ((sw = TAILQ_FIRST(&search_wl)) != NULL) {
5278                 xcb_destroy_window(conn, sw->indicator);
5279                 TAILQ_REMOVE(&search_wl, sw, entry);
5280                 free(sw);
5281         }
5282 }
5283
5284 void
5285 search_win(struct swm_region *r, union arg *args)
5286 {
5287         struct ws_win           *win = NULL;
5288         struct search_window    *sw = NULL;
5289         xcb_window_t            w;
5290         uint32_t                wa[2];
5291         int                     i, width, height;
5292         char                    s[8];
5293         FILE                    *lfile;
5294         size_t                  len;
5295         XftDraw                 *draw;
5296         XGlyphInfo              info;
5297         GC                      l_draw;
5298         XGCValues               l_gcv;
5299         XRectangle              l_ibox, l_lbox;
5300
5301         DNPRINTF(SWM_D_MISC, "search_win\n");
5302
5303         search_r = r;
5304         search_resp_action = SWM_SEARCH_SEARCH_WINDOW;
5305
5306         spawn_select(r, args, "search", &searchpid);
5307
5308         if ((lfile = fdopen(select_list_pipe[1], "w")) == NULL)
5309                 return;
5310
5311         TAILQ_INIT(&search_wl);
5312
5313         i = 1;
5314         TAILQ_FOREACH(win, &r->ws->winlist, entry) {
5315                 if (ICONIC(win))
5316                         continue;
5317
5318                 sw = calloc(1, sizeof(struct search_window));
5319                 if (sw == NULL) {
5320                         warn("search_win: calloc");
5321                         fclose(lfile);
5322                         search_win_cleanup();
5323                         return;
5324                 }
5325                 sw->idx = i;
5326                 sw->win = win;
5327
5328                 snprintf(s, sizeof s, "%d", i);
5329                 len = strlen(s);
5330
5331                 w = xcb_generate_id(conn);
5332                 wa[0] = r->s->c[SWM_S_COLOR_FOCUS].pixel;
5333                 wa[1] = r->s->c[SWM_S_COLOR_UNFOCUS].pixel;
5334
5335                 if (bar_font_legacy) {
5336                         XmbTextExtents(bar_fs, s, len, &l_ibox, &l_lbox);
5337                         width = l_lbox.width + 4;
5338                         height = bar_fs_extents->max_logical_extent.height + 4;
5339                 } else {
5340                         XftTextExtentsUtf8(display, bar_font, (FcChar8 *)s, len,
5341                             &info);
5342                         width = info.width + 4;
5343                         height = bar_font->height + 4;
5344                 }
5345
5346                 xcb_create_window(conn, XCB_COPY_FROM_PARENT, w, win->id, 0, 0,
5347                     width, height, 1, XCB_WINDOW_CLASS_INPUT_OUTPUT,
5348                     XCB_COPY_FROM_PARENT, XCB_CW_BACK_PIXEL |
5349                     XCB_CW_BORDER_PIXEL, wa);
5350
5351                 xcb_map_window(conn, w);
5352
5353                 sw->indicator = w;
5354                 TAILQ_INSERT_TAIL(&search_wl, sw, entry);
5355
5356                 if (bar_font_legacy) {
5357                         l_gcv.graphics_exposures = 0;
5358                         l_draw = XCreateGC(display, w, 0, &l_gcv);
5359
5360                         XSetForeground(display, l_draw,
5361                                 r->s->c[SWM_S_COLOR_BAR].pixel);
5362
5363                         DRAWSTRING(display, w, bar_fs, l_draw, 2,
5364                             (bar_fs_extents->max_logical_extent.height -
5365                             l_lbox.height) / 2 - l_lbox.y, s, len);
5366
5367                         XFreeGC(display, l_draw);
5368                 } else {
5369
5370                         draw = XftDrawCreate(display, w,
5371                             DefaultVisual(display, r->s->idx),
5372                             DefaultColormap(display, r->s->idx));
5373
5374                         XftDrawStringUtf8(draw, &bar_font_color, bar_font, 2,
5375                             (HEIGHT(r->bar) + bar_font->height) / 2 -
5376                             bar_font->descent, (FcChar8 *)s, len);
5377
5378                         XftDrawDestroy(draw);
5379                 }
5380
5381                 DNPRINTF(SWM_D_MISC, "search_win: mapped win %#x\n", w);
5382
5383                 fprintf(lfile, "%d\n", i);
5384                 i++;
5385         }
5386
5387         fclose(lfile);
5388
5389         xcb_flush(conn);
5390 }
5391
5392 void
5393 search_resp_uniconify(const char *resp, size_t len)
5394 {
5395         char                    *name;
5396         struct ws_win           *win;
5397         char                    *s;
5398
5399         DNPRINTF(SWM_D_MISC, "search_resp_uniconify: resp: %s\n", resp);
5400
5401         TAILQ_FOREACH(win, &search_r->ws->winlist, entry) {
5402                 if (!ICONIC(win))
5403                         continue;
5404                 name = get_win_name(win->id);
5405                 if (asprintf(&s, "%s.%u", name, win->id) == -1) {
5406                         free(name);
5407                         continue;
5408                 }
5409                 free(name);
5410                 if (strncmp(s, resp, len) == 0) {
5411                         /* XXX this should be a callback to generalize */
5412                         ewmh_apply_flags(win, win->ewmh_flags & ~EWMH_F_HIDDEN);
5413                         ewmh_update_wm_state(win);
5414                         stack();
5415                         free(s);
5416                         break;
5417                 }
5418                 free(s);
5419         }
5420 }
5421
5422 void
5423 search_resp_name_workspace(const char *resp, size_t len)
5424 {
5425         struct workspace        *ws;
5426
5427         DNPRINTF(SWM_D_MISC, "search_resp_name_workspace: resp: %s\n", resp);
5428
5429         if (search_r->ws == NULL)
5430                 return;
5431         ws = search_r->ws;
5432
5433         if (ws->name) {
5434                 free(search_r->ws->name);
5435                 search_r->ws->name = NULL;
5436         }
5437
5438         if (len > 1) {
5439                 ws->name = strdup(resp);
5440                 if (ws->name == NULL) {
5441                         DNPRINTF(SWM_D_MISC, "search_resp_name_workspace: "
5442                             "strdup: %s", strerror(errno));
5443                         return;
5444                 }
5445
5446                 ewmh_update_desktop_names();
5447                 ewmh_get_desktop_names();
5448         }
5449 }
5450
5451 void
5452 ewmh_update_desktop_names(void)
5453 {
5454         char                    *name_list = NULL, *p;
5455         int                     num_screens, i, j, len = 0, tot = 0;
5456
5457         num_screens = get_screen_count();
5458         for (i = 0; i < num_screens; ++i) {
5459                 for (j = 0; j < workspace_limit; ++j) {
5460                         if (screens[i].ws[j].name != NULL)
5461                                 len += strlen(screens[i].ws[j].name);
5462                         ++len;
5463                 }
5464
5465                 if((name_list = calloc(sizeof(char *), len)) == NULL)
5466                         err(1, "update_desktop_names: calloc: failed to "
5467                             "allocate memory.");
5468
5469                 p = name_list;
5470                 for (j = 0; j < workspace_limit; ++j) {
5471                         if (screens[i].ws[j].name != NULL) {
5472                                 len = strlen(screens[i].ws[j].name);
5473                                 memcpy(p, screens[i].ws[j].name, len);
5474                         } else {
5475                                 len = 0;
5476                         }
5477
5478                         p += len + 1;
5479                         tot += len + 1;
5480                 }
5481
5482                 xcb_change_property(conn, XCB_PROP_MODE_REPLACE,
5483                     screens[i].root, ewmh[_NET_DESKTOP_NAMES].atom,
5484                     a_utf8_string, 8, tot, name_list);
5485
5486                 free(name_list);
5487                 name_list = NULL;
5488         }
5489
5490         free(name_list);
5491 }
5492
5493 void
5494 ewmh_get_desktop_names(void)
5495 {
5496         char                            *names = NULL;
5497         xcb_get_property_cookie_t       c;
5498         xcb_get_property_reply_t        *r;
5499         int                             num_screens, i, j, n, k;
5500
5501         num_screens = get_screen_count();
5502         for (i = 0; i < num_screens; ++i) {
5503                 for (j = 0; j < workspace_limit; ++j) {
5504                         free(screens[i].ws[j].name);
5505                         screens[i].ws[j].name = NULL;
5506                 }
5507
5508                 c = xcb_get_property(conn, 0, screens[i].root,
5509                     ewmh[_NET_DESKTOP_NAMES].atom,
5510                     a_utf8_string, 0, UINT32_MAX);
5511                 r = xcb_get_property_reply(conn, c, NULL);
5512                 if (r == NULL)
5513                         continue;
5514
5515                 names = xcb_get_property_value(r);
5516                 n = xcb_get_property_value_length(r);
5517
5518                 for (j = 0, k = 0; j < n; ++j) {
5519                         if (*(names + j) != '\0') {
5520                                 screens[i].ws[k].name = strdup(names + j);
5521                                 j += strlen(names + j);
5522                         }
5523                         ++k;
5524                 }
5525                 free(r);
5526         }
5527 }
5528
5529 void
5530 ewmh_update_client_list(void)
5531 {
5532         struct ws_win           *win;
5533         int                     num_screens, i, j, k = 0, count = 0;
5534         xcb_window_t            *wins;
5535
5536         num_screens = get_screen_count();
5537         for (i = 0; i < num_screens; ++i) {
5538                 for (j = 0; j < workspace_limit; ++j)
5539                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
5540                                 ++count;
5541
5542                 DNPRINTF(SWM_D_PROP, "ewmh_update_client_list: win count: %d\n",
5543                     count);
5544
5545                 if (count == 0)
5546                         continue;
5547
5548                 wins = calloc(sizeof(xcb_window_t), count);
5549                 if (wins == NULL)
5550                         err(1, "ewmh_update_client_list: calloc: failed to "
5551                             "allocate memory.");
5552
5553                 for (j = 0, k = 0; j < workspace_limit; ++j)
5554                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
5555                                 wins[k++] = win->id;
5556
5557                 xcb_change_property(conn, XCB_PROP_MODE_REPLACE,
5558                     screens[i].root, ewmh[_NET_CLIENT_LIST].atom,
5559                     XCB_ATOM_WINDOW, 32, count, wins);
5560
5561                 free(wins);
5562         }
5563 }
5564
5565 void
5566 ewmh_update_current_desktop(void)
5567 {
5568         int                     num_screens, i;
5569
5570         num_screens = get_screen_count();
5571         for (i = 0; i < num_screens; ++i)
5572                 xcb_change_property(conn, XCB_PROP_MODE_REPLACE,
5573                     screens[i].root, ewmh[_NET_CURRENT_DESKTOP].atom,
5574                     XCB_ATOM_CARDINAL, 32, 1, &screens[i].r_focus->ws->idx);
5575 }
5576
5577 void
5578 search_resp_search_workspace(const char *resp)
5579 {
5580         char                    *p, *q;
5581         int                     ws_idx;
5582         const char              *errstr;
5583         union arg               a;
5584
5585         DNPRINTF(SWM_D_MISC, "search_resp_search_workspace: resp: %s\n", resp);
5586
5587         q = strdup(resp);
5588         if (q == NULL) {
5589                 DNPRINTF(SWM_D_MISC, "search_resp_search_workspace: strdup: %s",
5590                     strerror(errno));
5591                 return;
5592         }
5593         p = strchr(q, ':');
5594         if (p != NULL)
5595                 *p = '\0';
5596         ws_idx = (int)strtonum(q, 1, workspace_limit, &errstr);
5597         if (errstr) {
5598                 DNPRINTF(SWM_D_MISC, "workspace idx is %s: %s",
5599                     errstr, q);
5600                 free(q);
5601                 return;
5602         }
5603         free(q);
5604         a.id = ws_idx - 1;
5605         switchws(search_r, &a);
5606 }
5607
5608 void
5609 search_resp_search_window(const char *resp)
5610 {
5611         char                    *s;
5612         int                     idx;
5613         const char              *errstr;
5614         struct search_window    *sw;
5615
5616         DNPRINTF(SWM_D_MISC, "search_resp_search_window: resp: %s\n", resp);
5617
5618         s = strdup(resp);
5619         if (s == NULL) {
5620                 DNPRINTF(SWM_D_MISC, "search_resp_search_window: strdup: %s",
5621                     strerror(errno));
5622                 return;
5623         }
5624
5625         idx = (int)strtonum(s, 1, INT_MAX, &errstr);
5626         if (errstr) {
5627                 DNPRINTF(SWM_D_MISC, "window idx is %s: %s",
5628                     errstr, s);
5629                 free(s);
5630                 return;
5631         }
5632         free(s);
5633
5634         TAILQ_FOREACH(sw, &search_wl, entry)
5635                 if (idx == sw->idx) {
5636                         focus_win(sw->win);
5637                         break;
5638                 }
5639 }
5640
5641 #define MAX_RESP_LEN    1024
5642
5643 void
5644 search_do_resp(void)
5645 {
5646         ssize_t                 rbytes;
5647         char                    *resp;
5648         size_t                  len;
5649
5650         DNPRINTF(SWM_D_MISC, "search_do_resp:\n");
5651
5652         search_resp = 0;
5653         searchpid = 0;
5654
5655         if ((resp = calloc(1, MAX_RESP_LEN + 1)) == NULL) {
5656                 warn("search: calloc");
5657                 goto done;
5658         }
5659
5660         rbytes = read(select_resp_pipe[0], resp, MAX_RESP_LEN);
5661         if (rbytes <= 0) {
5662                 warn("search: read error");
5663                 goto done;
5664         }
5665         resp[rbytes] = '\0';
5666
5667         /* XXX:
5668          * Older versions of dmenu (Atleast pre 4.4.1) do not send a
5669          * newline, so work around that by sanitizing the resp now.
5670          */
5671         resp[strcspn(resp, "\n")] = '\0';
5672         len = strlen(resp);
5673
5674         switch (search_resp_action) {
5675         case SWM_SEARCH_UNICONIFY:
5676                 search_resp_uniconify(resp, len);
5677                 break;
5678         case SWM_SEARCH_NAME_WORKSPACE:
5679                 search_resp_name_workspace(resp, len);
5680                 break;
5681         case SWM_SEARCH_SEARCH_WORKSPACE:
5682                 search_resp_search_workspace(resp);
5683                 break;
5684         case SWM_SEARCH_SEARCH_WINDOW:
5685                 search_resp_search_window(resp);
5686                 break;
5687         }
5688
5689 done:
5690         if (search_resp_action == SWM_SEARCH_SEARCH_WINDOW)
5691                 search_win_cleanup();
5692
5693         search_resp_action = SWM_SEARCH_NONE;
5694         close(select_resp_pipe[0]);
5695         free(resp);
5696
5697         xcb_flush(conn);
5698 }
5699
5700 void
5701 wkill(struct swm_region *r, union arg *args)
5702 {
5703         DNPRINTF(SWM_D_MISC, "wkill: win %#x, id: %d\n", WINID(r->ws->focus),
5704             args->id);
5705
5706         if (r->ws->focus == NULL)
5707                 return;
5708
5709         if (args->id == SWM_ARG_ID_KILLWINDOW)
5710                 xcb_kill_client(conn, r->ws->focus->id);
5711         else
5712                 if (r->ws->focus->can_delete)
5713                         client_msg(r->ws->focus, a_delete, 0);
5714
5715         focus_flush();
5716 }
5717
5718 int
5719 clear_maximized(struct workspace *ws)
5720 {
5721         struct ws_win           *w;
5722         int                     count = 0;
5723
5724         /* Clear any maximized win(s) on ws, from bottom up. */
5725         TAILQ_FOREACH_REVERSE(w, &ws->stack, ws_win_stack, stack_entry)
5726                 if (MAXIMIZED(w)) {
5727                         ewmh_apply_flags(w, w->ewmh_flags & ~EWMH_F_MAXIMIZED);
5728                         ewmh_update_wm_state(w);
5729                         ++count;
5730                 }
5731
5732         return count;
5733 }
5734
5735 void
5736 maximize_toggle(struct swm_region *r, union arg *args)
5737 {
5738         struct ws_win           *w = r->ws->focus;
5739
5740         /* suppress unused warning since var is needed */
5741         (void)args;
5742
5743         if (w == NULL)
5744                 return;
5745
5746         DNPRINTF(SWM_D_MISC, "maximize_toggle: win %#x\n", w->id);
5747
5748         if (FULLSCREEN(w))
5749                 return;
5750
5751         if (w->ws->cur_layout == &layouts[SWM_MAX_STACK])
5752                 return;
5753
5754         ewmh_apply_flags(w, w->ewmh_flags ^ EWMH_F_MAXIMIZED);
5755         ewmh_update_wm_state(w);
5756
5757         stack();
5758
5759         if (w == w->ws->focus)
5760                 focus_win(w);
5761
5762         focus_flush();
5763         DNPRINTF(SWM_D_MISC, "maximize_toggle: done\n");
5764 }
5765
5766 void
5767 floating_toggle(struct swm_region *r, union arg *args)
5768 {
5769         struct ws_win           *win = r->ws->focus;
5770
5771         /* suppress unused warning since var is needed */
5772         (void)args;
5773
5774         if (win == NULL)
5775                 return;
5776
5777         if (FULLSCREEN(win) || TRANS(win))
5778                 return;
5779
5780         ewmh_apply_flags(win, win->ewmh_flags ^ EWMH_F_ABOVE);
5781         ewmh_update_wm_state(win);
5782
5783         stack();
5784
5785         if (win == win->ws->focus)
5786                 focus_win(win);
5787
5788         focus_flush();
5789 }
5790
5791 void
5792 region_containment(struct ws_win *win, struct swm_region *r, int opts)
5793 {
5794         struct swm_geometry             g = r->g;
5795         int                             rt, lt, tp, bm, bw;
5796
5797         bw = (opts & SWM_CW_SOFTBOUNDARY) ? boundary_width : 0;
5798
5799         /*
5800          * Perpendicular distance of each side of the window to the respective
5801          * side of the region boundary.  Positive values indicate the side of
5802          * the window has passed beyond the region boundary.
5803          */
5804         rt = opts & SWM_CW_RIGHT ? MAX_X(win) + BORDER(win) - MAX_X(r) : bw;
5805         lt = opts & SWM_CW_LEFT ? X(r) - X(win) + BORDER(win) : bw;
5806         bm = opts & SWM_CW_BOTTOM ? MAX_Y(win) + BORDER(win) - MAX_Y(r) : bw;
5807         tp = opts & SWM_CW_TOP ? Y(r) - Y(win) + BORDER(win) : bw;
5808
5809         DNPRINTF(SWM_D_MISC, "region_containment: win %#x, rt: %d, lt: %d, "
5810             "bm: %d, tp: %d, SOFTBOUNDARY: %s, HARDBOUNDARY: %s\n", win->id, rt,
5811             lt, bm, tp, YESNO(opts & SWM_CW_SOFTBOUNDARY),
5812             YESNO(opts & SWM_CW_HARDBOUNDARY));
5813
5814         /*
5815          * Disable containment if any of the flagged sides went beyond the
5816          * containment boundary, or if containment is disabled.
5817          */
5818         if (!(opts & SWM_CW_HARDBOUNDARY || opts & SWM_CW_SOFTBOUNDARY) ||
5819             (bw != 0 && ((rt > bw) || (lt > bw) || (bm > bw) || (tp > bw)))) {
5820                 /* Make sure window has at least 1 pixel in the region */
5821                 g.x += 1 - WIDTH(win);
5822                 g.y += 1 - HEIGHT(win);
5823                 g.w += 2 * WIDTH(win) - 2;
5824                 g.h += 2 * HEIGHT(win) - 2;
5825         }
5826
5827         constrain_window(win, &g, &opts);
5828 }
5829
5830 /* Move or resize a window so that flagged side(s) fit into the supplied box. */
5831 void
5832 constrain_window(struct ws_win *win, struct swm_geometry *b, int *opts)
5833 {
5834         DNPRINTF(SWM_D_MISC, "constrain_window: win %#x, (x,y) w x h: "
5835             "(%d,%d) %d x %d, box: (x,y) w x h: (%d,%d) %d x %d, rt: %s, "
5836             "lt: %s, bt: %s, tp: %s, allow resize: %s\n", win->id, X(win),
5837             Y(win), WIDTH(win), HEIGHT(win), b->x, b->y, b->w, b->h,
5838             YESNO(*opts & SWM_CW_RIGHT), YESNO(*opts & SWM_CW_LEFT),
5839             YESNO(*opts & SWM_CW_BOTTOM), YESNO(*opts & SWM_CW_TOP),
5840             YESNO(*opts & SWM_CW_RESIZABLE));
5841
5842         if ((*opts & SWM_CW_RIGHT) && MAX_X(win) + BORDER(win) > b->x + b->w) {
5843                 if (*opts & SWM_CW_RESIZABLE)
5844                         WIDTH(win) = b->x + b->w - X(win) - BORDER(win);
5845                 else
5846                         X(win) = b->x + b->w - WIDTH(win) - BORDER(win);
5847         }
5848
5849         if ((*opts & SWM_CW_LEFT) && X(win) + BORDER(win) < b->x) {
5850                 if (*opts & SWM_CW_RESIZABLE)
5851                         WIDTH(win) -= b->x - X(win) - BORDER(win);
5852
5853                 X(win) = b->x - BORDER(win);
5854         }
5855
5856         if ((*opts & SWM_CW_BOTTOM) && MAX_Y(win) + BORDER(win) > b->y + b->h) {
5857                 if (*opts & SWM_CW_RESIZABLE)
5858                         HEIGHT(win) = b->y + b->h - Y(win) - BORDER(win);
5859                 else
5860                         Y(win) = b->y + b->h - HEIGHT(win) - BORDER(win);
5861         }
5862
5863         if ((*opts & SWM_CW_TOP) && Y(win) + BORDER(win) < b->y) {
5864                 if (*opts & SWM_CW_RESIZABLE)
5865                         HEIGHT(win) -= b->y - Y(win) - BORDER(win);
5866
5867                 Y(win) = b->y - BORDER(win);
5868         }
5869
5870         if (*opts & SWM_CW_RESIZABLE) {
5871                 if (WIDTH(win) < 1)
5872                         WIDTH(win) = 1;
5873                 if (HEIGHT(win) < 1)
5874                         HEIGHT(win) = 1;
5875         }
5876 }
5877
5878 void
5879 update_window(struct ws_win *win)
5880 {
5881         uint16_t        mask;
5882         uint32_t        wc[5];
5883
5884         mask = XCB_CONFIG_WINDOW_X | XCB_CONFIG_WINDOW_Y |
5885             XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT |
5886             XCB_CONFIG_WINDOW_BORDER_WIDTH;
5887         wc[0] = X(win);
5888         wc[1] = Y(win);
5889         wc[2] = WIDTH(win);
5890         wc[3] = HEIGHT(win);
5891         wc[4] = BORDER(win);
5892
5893         DNPRINTF(SWM_D_EVENT, "update_window: win %#x, (x,y) w x h: "
5894             "(%d,%d) %d x %d, bordered: %s\n", win->id, wc[0], wc[1], wc[2],
5895             wc[3], YESNO(win->bordered));
5896
5897         xcb_configure_window(conn, win->id, mask, wc);
5898 }
5899
5900 #define SWM_RESIZE_STEPS        (50)
5901
5902 void
5903 resize(struct ws_win *win, union arg *args)
5904 {
5905         xcb_timestamp_t         timestamp = 0;
5906         struct swm_region       *r = NULL;
5907         struct swm_geometry     g;
5908         int                     resize_stp = 0;
5909         int                     top = 0, left = 0, resizing;
5910         int                     dx, dy;
5911         xcb_cursor_t                    cursor;
5912         xcb_query_pointer_reply_t       *xpr = NULL;
5913         xcb_generic_event_t             *evt;
5914         xcb_motion_notify_event_t       *mne;
5915
5916         if (win == NULL)
5917                 return;
5918         r = win->ws->r;
5919
5920         if (FULLSCREEN(win))
5921                 return;
5922
5923         /* In max_stack mode, should only resize transients. */
5924         if (win->ws->cur_layout == &layouts[SWM_MAX_STACK] && !TRANS(win))
5925                 return;
5926
5927         DNPRINTF(SWM_D_EVENT, "resize: win %#x, floating: %s, "
5928             "transient: %#x\n", win->id, YESNO(ABOVE(win)),
5929             win->transient);
5930
5931         if (MAXIMIZED(win))
5932                 store_float_geom(win);
5933         else if (!(TRANS(win) || ABOVE(win)))
5934                 return;
5935
5936         ewmh_apply_flags(win, (win->ewmh_flags | SWM_F_MANUAL | EWMH_F_ABOVE) &
5937             ~EWMH_F_MAXIMIZED);
5938         ewmh_update_wm_state(win);
5939
5940         stack();
5941
5942         focus_flush();
5943
5944         /* It's possible for win to have been freed during focus_flush(). */
5945         if (validate_win(win)) {
5946                 DNPRINTF(SWM_D_EVENT, "resize: invalid win.\n");
5947                 goto out;
5948         }
5949
5950         switch (args->id) {
5951         case SWM_ARG_ID_WIDTHSHRINK:
5952                 WIDTH(win) -= SWM_RESIZE_STEPS;
5953                 resize_stp = 1;
5954                 break;
5955         case SWM_ARG_ID_WIDTHGROW:
5956                 WIDTH(win) += SWM_RESIZE_STEPS;
5957                 resize_stp = 1;
5958                 break;
5959         case SWM_ARG_ID_HEIGHTSHRINK:
5960                 HEIGHT(win) -= SWM_RESIZE_STEPS;
5961                 resize_stp = 1;
5962                 break;
5963         case SWM_ARG_ID_HEIGHTGROW:
5964                 HEIGHT(win) += SWM_RESIZE_STEPS;
5965                 resize_stp = 1;
5966                 break;
5967         default:
5968                 break;
5969         }
5970         if (resize_stp) {
5971                 region_containment(win, r, SWM_CW_ALLSIDES | SWM_CW_RESIZABLE |
5972                     SWM_CW_HARDBOUNDARY);
5973                 update_window(win);
5974                 store_float_geom(win);
5975                 return;
5976         }
5977
5978         region_containment(win, r, SWM_CW_ALLSIDES | SWM_CW_RESIZABLE |
5979             SWM_CW_SOFTBOUNDARY);
5980         update_window(win);
5981
5982         /* get cursor offset from window root */
5983         xpr = xcb_query_pointer_reply(conn, xcb_query_pointer(conn, win->id),
5984             NULL);
5985         if (xpr == NULL)
5986                 return;
5987
5988         g = win->g;
5989
5990         if (xpr->win_x < WIDTH(win) / 2)
5991                 left = 1;
5992
5993         if (xpr->win_y < HEIGHT(win) / 2)
5994                 top = 1;
5995
5996         if (args->id == SWM_ARG_ID_CENTER)
5997                 cursor = cursors[XC_SIZING].cid;
5998         else if (top)
5999                 cursor = cursors[left ? XC_TOP_LEFT_CORNER :
6000                     XC_TOP_RIGHT_CORNER].cid;
6001         else
6002                 cursor = cursors[left ? XC_BOTTOM_LEFT_CORNER :
6003                     XC_BOTTOM_RIGHT_CORNER].cid;
6004
6005         xcb_grab_pointer(conn, 0, win->id, MOUSEMASK,
6006             XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC, XCB_WINDOW_NONE, cursor,
6007             XCB_CURRENT_TIME),
6008
6009         xcb_flush(conn);
6010         resizing = 1;
6011         while (resizing && (evt = xcb_wait_for_event(conn))) {
6012                 switch (XCB_EVENT_RESPONSE_TYPE(evt)) {
6013                 case XCB_BUTTON_RELEASE:
6014                         DNPRINTF(SWM_D_EVENT, "resize: BUTTON_RELEASE\n");
6015                         resizing = 0;
6016                         break;
6017                 case XCB_MOTION_NOTIFY:
6018                         mne = (xcb_motion_notify_event_t *)evt;
6019                         /* cursor offset/delta from start of the operation */
6020                         dx = mne->root_x - xpr->root_x;
6021                         dy = mne->root_y - xpr->root_y;
6022
6023                         /* vertical */
6024                         if (top)
6025                                 dy = -dy;
6026
6027                         if (args->id == SWM_ARG_ID_CENTER) {
6028                                 if (g.h / 2 + dy < 1)
6029                                         dy = 1 - g.h / 2;
6030
6031                                 Y(win) = g.y - dy;
6032                                 HEIGHT(win) = g.h + 2 * dy;
6033                         } else {
6034                                 if (g.h + dy < 1)
6035                                         dy = 1 - g.h;
6036
6037                                 if (top)
6038                                         Y(win) = g.y - dy;
6039
6040                                 HEIGHT(win) = g.h + dy;
6041                         }
6042
6043                         /* horizontal */
6044                         if (left)
6045                                 dx = -dx;
6046
6047                         if (args->id == SWM_ARG_ID_CENTER) {
6048                                 if (g.w / 2 + dx < 1)
6049                                         dx = 1 - g.w / 2;
6050
6051                                 X(win) = g.x - dx;
6052                                 WIDTH(win) = g.w + 2 * dx;
6053                         } else {
6054                                 if (g.w + dx < 1)
6055                                         dx = 1 - g.w;
6056
6057                                 if (left)
6058                                         X(win) = g.x - dx;
6059
6060                                 WIDTH(win) = g.w + dx;
6061                         }
6062
6063                         /* not free, don't sync more than 120 times / second */
6064                         if ((mne->time - timestamp) > (1000 / 120) ) {
6065                                 timestamp = mne->time;
6066                                 regionize(win, mne->root_x, mne->root_y);
6067                                 region_containment(win, r, SWM_CW_ALLSIDES |
6068                                     SWM_CW_RESIZABLE | SWM_CW_HARDBOUNDARY |
6069                                     SWM_CW_SOFTBOUNDARY);
6070                                 update_window(win);
6071                                 xcb_flush(conn);
6072                         }
6073                         break;
6074                 default:
6075                         event_handle(evt);
6076
6077                         /* It's possible for win to have been freed above. */
6078                         if (validate_win(win)) {
6079                                 DNPRINTF(SWM_D_EVENT, "resize: invalid win.\n");
6080                                 goto out;
6081                         }
6082                         break;
6083                 }
6084                 free(evt);
6085         }
6086         if (timestamp) {
6087                 region_containment(win, r, SWM_CW_ALLSIDES | SWM_CW_RESIZABLE |
6088                     SWM_CW_HARDBOUNDARY | SWM_CW_SOFTBOUNDARY);
6089                 update_window(win);
6090                 xcb_flush(conn);
6091         }
6092         store_float_geom(win);
6093 out:
6094         xcb_ungrab_pointer(conn, XCB_CURRENT_TIME);
6095         free(xpr);
6096         DNPRINTF(SWM_D_EVENT, "resize: done.\n");
6097 }
6098
6099 void
6100 resize_step(struct swm_region *r, union arg *args)
6101 {
6102         struct ws_win           *win = NULL;
6103
6104         if (r && r->ws && r->ws->focus)
6105                 win = r->ws->focus;
6106         else
6107                 return;
6108
6109         resize(win, args);
6110         focus_flush();
6111 }
6112
6113 /* Try to set window region based on supplied coordinates or window center. */
6114 void
6115 regionize(struct ws_win *win, int x, int y)
6116 {
6117         struct swm_region *r = NULL;
6118
6119         r = region_under(win->s, x, y);
6120         if (r == NULL)
6121                 r = region_under(win->s, X(win) + WIDTH(win) / 2,
6122                     Y(win) + HEIGHT(win) / 2);
6123
6124         if (r && r != win->ws->r) {
6125                 win_to_ws(win, r->ws->idx, 0);
6126                 set_region(r);
6127         }
6128 }
6129
6130 #define SWM_MOVE_STEPS  (50)
6131
6132 void
6133 move(struct ws_win *win, union arg *args)
6134 {
6135         struct swm_region               *r;
6136         xcb_timestamp_t                 timestamp = 0;
6137         int                             move_stp = 0, moving, restack = 0;
6138         xcb_query_pointer_reply_t       *qpr = NULL;
6139         xcb_generic_event_t             *evt;
6140         xcb_motion_notify_event_t       *mne;
6141
6142         if (win == NULL)
6143                 return;
6144
6145         if ((r = win->ws->r) == NULL)
6146                 return;
6147
6148         if (FULLSCREEN(win))
6149                 return;
6150
6151         DNPRINTF(SWM_D_EVENT, "move: win %#x, floating: %s, transient: "
6152             "%#x\n", win->id, YESNO(ABOVE(win)), win->transient);
6153
6154         /* in max_stack mode should only move transients */
6155         if (win->ws->cur_layout == &layouts[SWM_MAX_STACK] && !TRANS(win))
6156                 return;
6157
6158         if (!(ABOVE(win) || TRANS(win)) || MAXIMIZED(win)) {
6159                 store_float_geom(win);
6160                 restack = 1;
6161         }
6162
6163         ewmh_apply_flags(win, (win->ewmh_flags | SWM_F_MANUAL | EWMH_F_ABOVE) &
6164             ~EWMH_F_MAXIMIZED);
6165         ewmh_update_wm_state(win);
6166
6167         if (restack)
6168                 stack();
6169
6170         focus_flush();
6171
6172         /* It's possible for win to have been freed during focus_flush(). */
6173         if (validate_win(win)) {
6174                 DNPRINTF(SWM_D_EVENT, "move: invalid win.\n");
6175                 goto out;
6176         }
6177
6178         move_stp = 0;
6179         switch (args->id) {
6180         case SWM_ARG_ID_MOVELEFT:
6181                 X(win) -= (SWM_MOVE_STEPS - border_width);
6182                 move_stp = 1;
6183                 break;
6184         case SWM_ARG_ID_MOVERIGHT:
6185                 X(win) += (SWM_MOVE_STEPS - border_width);
6186                 move_stp = 1;
6187                 break;
6188         case SWM_ARG_ID_MOVEUP:
6189                 Y(win) -= (SWM_MOVE_STEPS - border_width);
6190                 move_stp = 1;
6191                 break;
6192         case SWM_ARG_ID_MOVEDOWN:
6193                 Y(win) += (SWM_MOVE_STEPS - border_width);
6194                 move_stp = 1;
6195                 break;
6196         default:
6197                 break;
6198         }
6199         if (move_stp) {
6200                 regionize(win, -1, -1);
6201                 region_containment(win, win->ws->r, SWM_CW_ALLSIDES);
6202                 update_window(win);
6203                 store_float_geom(win);
6204                 return;
6205         }
6206
6207         xcb_grab_pointer(conn, 0, win->id, MOUSEMASK,
6208             XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC,
6209             XCB_WINDOW_NONE, cursors[XC_FLEUR].cid, XCB_CURRENT_TIME);
6210
6211         /* get cursor offset from window root */
6212         qpr = xcb_query_pointer_reply(conn, xcb_query_pointer(conn, win->id),
6213                 NULL);
6214         if (qpr == NULL) {
6215                 xcb_ungrab_pointer(conn, XCB_CURRENT_TIME);
6216                 return;
6217         }
6218
6219         regionize(win, qpr->root_x, qpr->root_y);
6220         region_containment(win, win->ws->r, SWM_CW_ALLSIDES |
6221             SWM_CW_SOFTBOUNDARY);
6222         update_window(win);
6223         xcb_flush(conn);
6224         moving = 1;
6225         while (moving && (evt = xcb_wait_for_event(conn))) {
6226                 switch (XCB_EVENT_RESPONSE_TYPE(evt)) {
6227                 case XCB_BUTTON_RELEASE:
6228                         DNPRINTF(SWM_D_EVENT, "move: BUTTON_RELEASE\n");
6229                         moving = 0;
6230                         break;
6231                 case XCB_MOTION_NOTIFY:
6232                         mne = (xcb_motion_notify_event_t *)evt;
6233                         DNPRINTF(SWM_D_EVENT, "motion: root: %#x\n", mne->root);
6234                         X(win) = mne->root_x - qpr->win_x - border_width;
6235                         Y(win) = mne->root_y - qpr->win_y - border_width;
6236
6237                         /* not free, don't sync more than 120 times / second */
6238                         if ((mne->time - timestamp) > (1000 / 120) ) {
6239                                 timestamp = mne->time;
6240                                 regionize(win, mne->root_x, mne->root_y);
6241                                 region_containment(win, win->ws->r,
6242                                     SWM_CW_ALLSIDES | SWM_CW_SOFTBOUNDARY);
6243                                 update_window(win);
6244                                 xcb_flush(conn);
6245                         }
6246                         break;
6247                 default:
6248                         event_handle(evt);
6249
6250                         /* It's possible for win to have been freed above. */
6251                         if (validate_win(win)) {
6252                                 DNPRINTF(SWM_D_EVENT, "move: invalid win.\n");
6253                                 goto out;
6254                         }
6255                         break;
6256                 }
6257                 free(evt);
6258         }
6259         if (timestamp) {
6260                 region_containment(win, win->ws->r, SWM_CW_ALLSIDES |
6261                     SWM_CW_SOFTBOUNDARY);
6262                 update_window(win);
6263                 xcb_flush(conn);
6264         }
6265         store_float_geom(win);
6266 out:
6267         free(qpr);
6268         xcb_ungrab_pointer(conn, XCB_CURRENT_TIME);
6269         DNPRINTF(SWM_D_EVENT, "move: done.\n");
6270 }
6271
6272 void
6273 move_step(struct swm_region *r, union arg *args)
6274 {
6275         struct ws_win           *win = NULL;
6276
6277         if (r && r->ws && r->ws->focus)
6278                 win = r->ws->focus;
6279         else
6280                 return;
6281
6282         if (!TRANS(win) && !ABOVE(win))
6283                 return;
6284
6285         move(win, args);
6286         focus_flush();
6287 }
6288
6289 /* key definitions */
6290 struct keyfunc {
6291         char                    name[SWM_FUNCNAME_LEN];
6292         void                    (*func)(struct swm_region *r, union arg *);
6293         union arg               args;
6294 } keyfuncs[KF_INVALID + 1] = {
6295         /* name                 function        argument */
6296         { "bar_toggle",         bar_toggle,     {.id = SWM_ARG_ID_BAR_TOGGLE} },
6297         { "bar_toggle_ws",      bar_toggle,     {.id = SWM_ARG_ID_BAR_TOGGLE_WS} },
6298         { "button2",            pressbutton,    {2} },
6299         { "cycle_layout",       cycle_layout,   {0} },
6300         { "flip_layout",        stack_config,   {.id = SWM_ARG_ID_FLIPLAYOUT} },
6301         { "float_toggle",       floating_toggle,{0} },
6302         { "focus_main",         focus,          {.id = SWM_ARG_ID_FOCUSMAIN} },
6303         { "focus_next",         focus,          {.id = SWM_ARG_ID_FOCUSNEXT} },
6304         { "focus_prev",         focus,          {.id = SWM_ARG_ID_FOCUSPREV} },
6305         { "focus_urgent",       focus,          {.id = SWM_ARG_ID_FOCUSURGENT} },
6306         { "maximize_toggle",    maximize_toggle,{0} },
6307         { "height_grow",        resize_step,    {.id = SWM_ARG_ID_HEIGHTGROW} },
6308         { "height_shrink",      resize_step,    {.id = SWM_ARG_ID_HEIGHTSHRINK} },
6309         { "iconify",            iconify,        {0} },
6310         { "master_shrink",      stack_config,   {.id = SWM_ARG_ID_MASTERSHRINK} },
6311         { "master_grow",        stack_config,   {.id = SWM_ARG_ID_MASTERGROW} },
6312         { "master_add",         stack_config,   {.id = SWM_ARG_ID_MASTERADD} },
6313         { "master_del",         stack_config,   {.id = SWM_ARG_ID_MASTERDEL} },
6314         { "move_down",          move_step,      {.id = SWM_ARG_ID_MOVEDOWN} },
6315         { "move_left",          move_step,      {.id = SWM_ARG_ID_MOVELEFT} },
6316         { "move_right",         move_step,      {.id = SWM_ARG_ID_MOVERIGHT} },
6317         { "move_up",            move_step,      {.id = SWM_ARG_ID_MOVEUP} },
6318         { "mvrg_1",             send_to_rg,     {.id = 0} },
6319         { "mvrg_2",             send_to_rg,     {.id = 1} },
6320         { "mvrg_3",             send_to_rg,     {.id = 2} },
6321         { "mvrg_4",             send_to_rg,     {.id = 3} },
6322         { "mvrg_5",             send_to_rg,     {.id = 4} },
6323         { "mvrg_6",             send_to_rg,     {.id = 5} },
6324         { "mvrg_7",             send_to_rg,     {.id = 6} },
6325         { "mvrg_8",             send_to_rg,     {.id = 7} },
6326         { "mvrg_9",             send_to_rg,     {.id = 8} },
6327         { "mvws_1",             send_to_ws,     {.id = 0} },
6328         { "mvws_2",             send_to_ws,     {.id = 1} },
6329         { "mvws_3",             send_to_ws,     {.id = 2} },
6330         { "mvws_4",             send_to_ws,     {.id = 3} },
6331         { "mvws_5",             send_to_ws,     {.id = 4} },
6332         { "mvws_6",             send_to_ws,     {.id = 5} },
6333         { "mvws_7",             send_to_ws,     {.id = 6} },
6334         { "mvws_8",             send_to_ws,     {.id = 7} },
6335         { "mvws_9",             send_to_ws,     {.id = 8} },
6336         { "mvws_10",            send_to_ws,     {.id = 9} },
6337         { "mvws_11",            send_to_ws,     {.id = 10} },
6338         { "mvws_12",            send_to_ws,     {.id = 11} },
6339         { "mvws_13",            send_to_ws,     {.id = 12} },
6340         { "mvws_14",            send_to_ws,     {.id = 13} },
6341         { "mvws_15",            send_to_ws,     {.id = 14} },
6342         { "mvws_16",            send_to_ws,     {.id = 15} },
6343         { "mvws_17",            send_to_ws,     {.id = 16} },
6344         { "mvws_18",            send_to_ws,     {.id = 17} },
6345         { "mvws_19",            send_to_ws,     {.id = 18} },
6346         { "mvws_20",            send_to_ws,     {.id = 19} },
6347         { "mvws_21",            send_to_ws,     {.id = 20} },
6348         { "mvws_22",            send_to_ws,     {.id = 21} },
6349         { "name_workspace",     name_workspace, {0} },
6350         { "quit",               quit,           {0} },
6351         { "raise_toggle",       raise_toggle,   {0} },
6352         { "restart",            restart,        {0} },
6353         { "rg_1",               focusrg,        {.id = 0} },
6354         { "rg_2",               focusrg,        {.id = 1} },
6355         { "rg_3",               focusrg,        {.id = 2} },
6356         { "rg_4",               focusrg,        {.id = 3} },
6357         { "rg_5",               focusrg,        {.id = 4} },
6358         { "rg_6",               focusrg,        {.id = 5} },
6359         { "rg_7",               focusrg,        {.id = 6} },
6360         { "rg_8",               focusrg,        {.id = 7} },
6361         { "rg_9",               focusrg,        {.id = 8} },
6362         { "rg_next",            cyclerg,        {.id = SWM_ARG_ID_CYCLERG_UP} },
6363         { "rg_prev",            cyclerg,        {.id = SWM_ARG_ID_CYCLERG_DOWN} },
6364         { "screen_next",        cyclerg,        {.id = SWM_ARG_ID_CYCLERG_UP} },
6365         { "screen_prev",        cyclerg,        {.id = SWM_ARG_ID_CYCLERG_DOWN} },
6366         { "search_win",         search_win,     {0} },
6367         { "search_workspace",   search_workspace,       {0} },
6368         { "spawn_custom",       NULL,           {0} },
6369         { "stack_inc",          stack_config,   {.id = SWM_ARG_ID_STACKINC} },
6370         { "stack_dec",          stack_config,   {.id = SWM_ARG_ID_STACKDEC} },
6371         { "stack_reset",        stack_config,   {.id = SWM_ARG_ID_STACKRESET} },
6372         { "swap_main",          swapwin,        {.id = SWM_ARG_ID_SWAPMAIN} },
6373         { "swap_next",          swapwin,        {.id = SWM_ARG_ID_SWAPNEXT} },
6374         { "swap_prev",          swapwin,        {.id = SWM_ARG_ID_SWAPPREV} },
6375         { "uniconify",          uniconify,      {0} },
6376         { "version",            version,        {0} },
6377         { "width_grow",         resize_step,    {.id = SWM_ARG_ID_WIDTHGROW} },
6378         { "width_shrink",       resize_step,    {.id = SWM_ARG_ID_WIDTHSHRINK} },
6379         { "wind_del",           wkill,          {.id = SWM_ARG_ID_DELETEWINDOW} },
6380         { "wind_kill",          wkill,          {.id = SWM_ARG_ID_KILLWINDOW} },
6381         { "ws_1",               switchws,       {.id = 0} },
6382         { "ws_2",               switchws,       {.id = 1} },
6383         { "ws_3",               switchws,       {.id = 2} },
6384         { "ws_4",               switchws,       {.id = 3} },
6385         { "ws_5",               switchws,       {.id = 4} },
6386         { "ws_6",               switchws,       {.id = 5} },
6387         { "ws_7",               switchws,       {.id = 6} },
6388         { "ws_8",               switchws,       {.id = 7} },
6389         { "ws_9",               switchws,       {.id = 8} },
6390         { "ws_10",              switchws,       {.id = 9} },
6391         { "ws_11",              switchws,       {.id = 10} },
6392         { "ws_12",              switchws,       {.id = 11} },
6393         { "ws_13",              switchws,       {.id = 12} },
6394         { "ws_14",              switchws,       {.id = 13} },
6395         { "ws_15",              switchws,       {.id = 14} },
6396         { "ws_16",              switchws,       {.id = 15} },
6397         { "ws_17",              switchws,       {.id = 16} },
6398         { "ws_18",              switchws,       {.id = 17} },
6399         { "ws_19",              switchws,       {.id = 18} },
6400         { "ws_20",              switchws,       {.id = 19} },
6401         { "ws_21",              switchws,       {.id = 20} },
6402         { "ws_22",              switchws,       {.id = 21} },
6403         { "ws_next",            cyclews,        {.id = SWM_ARG_ID_CYCLEWS_UP} },
6404         { "ws_next_all",        cyclews,        {.id = SWM_ARG_ID_CYCLEWS_UP_ALL} },
6405         { "ws_next_move",       cyclews,        {.id = SWM_ARG_ID_CYCLEWS_MOVE_UP} },
6406         { "ws_prev",            cyclews,        {.id = SWM_ARG_ID_CYCLEWS_DOWN} },
6407         { "ws_prev_all",        cyclews,        {.id = SWM_ARG_ID_CYCLEWS_DOWN_ALL} },
6408         { "ws_prev_move",       cyclews,        {.id = SWM_ARG_ID_CYCLEWS_MOVE_DOWN} },
6409         { "ws_prior",           priorws,        {0} },
6410         { "dumpwins",           dumpwins,       {0} }, /* MUST BE LAST */
6411         { "invalid key func",   NULL,           {0} },
6412 };
6413
6414 int
6415 key_cmp(struct key *kp1, struct key *kp2)
6416 {
6417         if (kp1->keysym < kp2->keysym)
6418                 return (-1);
6419         if (kp1->keysym > kp2->keysym)
6420                 return (1);
6421
6422         if (kp1->mod < kp2->mod)
6423                 return (-1);
6424         if (kp1->mod > kp2->mod)
6425                 return (1);
6426
6427         return (0);
6428 }
6429
6430 /* mouse */
6431 enum { client_click, root_click };
6432 struct button {
6433         unsigned int            action;
6434         unsigned int            mask;
6435         unsigned int            button;
6436         void                    (*func)(struct ws_win *, union arg *);
6437         union arg               args;
6438 } buttons[] = {
6439 #define MODKEY_SHIFT    MODKEY | XCB_MOD_MASK_SHIFT
6440           /* action     key             mouse button    func    args */
6441         { client_click, MODKEY,         XCB_BUTTON_INDEX_3,     resize, {.id = SWM_ARG_ID_DONTCENTER} },
6442         { client_click, MODKEY_SHIFT,   XCB_BUTTON_INDEX_3,     resize, {.id = SWM_ARG_ID_CENTER} },
6443         { client_click, MODKEY,         XCB_BUTTON_INDEX_1,     move,   {0} },
6444 #undef MODKEY_SHIFT
6445 };
6446
6447 void
6448 update_modkey(unsigned int mod)
6449 {
6450         int                     i;
6451         struct key              *kp;
6452
6453         mod_key = mod;
6454         RB_FOREACH(kp, key_tree, &keys)
6455                 if (kp->mod & XCB_MOD_MASK_SHIFT)
6456                         kp->mod = mod | XCB_MOD_MASK_SHIFT;
6457                 else
6458                         kp->mod = mod;
6459
6460         for (i = 0; i < LENGTH(buttons); i++)
6461                 if (buttons[i].mask & XCB_MOD_MASK_SHIFT)
6462                         buttons[i].mask = mod | XCB_MOD_MASK_SHIFT;
6463                 else
6464                         buttons[i].mask = mod;
6465 }
6466
6467 int
6468 spawn_expand(struct swm_region *r, union arg *args, const char *spawn_name,
6469     char ***ret_args)
6470 {
6471         struct spawn_prog       *prog = NULL;
6472         int                     i, c;
6473         char                    *ap, **real_args;
6474
6475         /* suppress unused warning since var is needed */
6476         (void)args;
6477
6478         DNPRINTF(SWM_D_SPAWN, "spawn_expand: %s\n", spawn_name);
6479
6480         /* find program */
6481         TAILQ_FOREACH(prog, &spawns, entry) {
6482                 if (strcasecmp(spawn_name, prog->name) == 0)
6483                         break;
6484         }
6485         if (prog == NULL) {
6486                 warnx("spawn_custom: program %s not found", spawn_name);
6487                 return (-1);
6488         }
6489
6490         /* make room for expanded args */
6491         if ((real_args = calloc(prog->argc + 1, sizeof(char *))) == NULL)
6492                 err(1, "spawn_custom: calloc real_args");
6493
6494         /* expand spawn_args into real_args */
6495         for (i = c = 0; i < prog->argc; i++) {
6496                 ap = prog->argv[i];
6497                 DNPRINTF(SWM_D_SPAWN, "spawn_custom: raw arg: %s\n", ap);
6498                 if (strcasecmp(ap, "$bar_border") == 0) {
6499                         if ((real_args[c] =
6500                             strdup(r->s->c[SWM_S_COLOR_BAR_BORDER].name))
6501                             == NULL)
6502                                 err(1,  "spawn_custom border color");
6503                 } else if (strcasecmp(ap, "$bar_color") == 0) {
6504                         if ((real_args[c] =
6505                             strdup(r->s->c[SWM_S_COLOR_BAR].name))
6506                             == NULL)
6507                                 err(1, "spawn_custom bar color");
6508                 } else if (strcasecmp(ap, "$bar_font") == 0) {
6509                         if ((real_args[c] = strdup(bar_fonts))
6510                             == NULL)
6511                                 err(1, "spawn_custom bar fonts");
6512                 } else if (strcasecmp(ap, "$bar_font_color") == 0) {
6513                         if ((real_args[c] =
6514                             strdup(r->s->c[SWM_S_COLOR_BAR_FONT].name))
6515                             == NULL)
6516                                 err(1, "spawn_custom color font");
6517                 } else if (strcasecmp(ap, "$color_focus") == 0) {
6518                         if ((real_args[c] =
6519                             strdup(r->s->c[SWM_S_COLOR_FOCUS].name))
6520                             == NULL)
6521                                 err(1, "spawn_custom color focus");
6522                 } else if (strcasecmp(ap, "$color_unfocus") == 0) {
6523                         if ((real_args[c] =
6524                             strdup(r->s->c[SWM_S_COLOR_UNFOCUS].name))
6525                             == NULL)
6526                                 err(1, "spawn_custom color unfocus");
6527                 } else if (strcasecmp(ap, "$region_index") == 0) {
6528                         if (asprintf(&real_args[c], "%d",
6529                             get_region_index(r) + 1) < 1)
6530                                 err(1, "spawn_custom region index");
6531                 } else if (strcasecmp(ap, "$workspace_index") == 0) {
6532                         if (asprintf(&real_args[c], "%d", r->ws->idx + 1) < 1)
6533                                 err(1, "spawn_custom workspace index");
6534                 } else if (strcasecmp(ap, "$dmenu_bottom") == 0) {
6535                         if (!bar_at_bottom)
6536                                 continue;
6537                         if ((real_args[c] = strdup("-b")) == NULL)
6538                                 err(1, "spawn_custom workspace index");
6539                 } else {
6540                         /* no match --> copy as is */
6541                         if ((real_args[c] = strdup(ap)) == NULL)
6542                                 err(1, "spawn_custom strdup(ap)");
6543                 }
6544                 DNPRINTF(SWM_D_SPAWN, "spawn_custom: cooked arg: %s\n",
6545                     real_args[c]);
6546                 ++c;
6547         }
6548
6549 #ifdef SWM_DEBUG
6550         DNPRINTF(SWM_D_SPAWN, "spawn_custom: result: ");
6551         for (i = 0; i < c; ++i)
6552                 DPRINTF("\"%s\" ", real_args[i]);
6553         DPRINTF("\n");
6554 #endif
6555         *ret_args = real_args;
6556         return (c);
6557 }
6558
6559 void
6560 spawn_custom(struct swm_region *r, union arg *args, const char *spawn_name)
6561 {
6562         union arg               a;
6563         char                    **real_args;
6564         int                     spawn_argc, i;
6565
6566         if ((spawn_argc = spawn_expand(r, args, spawn_name, &real_args)) < 0)
6567                 return;
6568         a.argv = real_args;
6569         if (fork() == 0)
6570                 spawn(r->ws->idx, &a, 1);
6571
6572         for (i = 0; i < spawn_argc; i++)
6573                 free(real_args[i]);
6574         free(real_args);
6575 }
6576
6577 void
6578 spawn_select(struct swm_region *r, union arg *args, const char *spawn_name,
6579     int *pid)
6580 {
6581         union arg               a;
6582         char                    **real_args;
6583         int                     i, spawn_argc;
6584
6585         if ((spawn_argc = spawn_expand(r, args, spawn_name, &real_args)) < 0)
6586                 return;
6587         a.argv = real_args;
6588
6589         if (pipe(select_list_pipe) == -1)
6590                 err(1, "pipe error");
6591         if (pipe(select_resp_pipe) == -1)
6592                 err(1, "pipe error");
6593
6594         if (signal(SIGPIPE, SIG_IGN) == SIG_ERR)
6595                 err(1, "could not disable SIGPIPE");
6596         switch (*pid = fork()) {
6597         case -1:
6598                 err(1, "cannot fork");
6599                 break;
6600         case 0: /* child */
6601                 if (dup2(select_list_pipe[0], STDIN_FILENO) == -1)
6602                         err(1, "dup2");
6603                 if (dup2(select_resp_pipe[1], STDOUT_FILENO) == -1)
6604                         err(1, "dup2");
6605                 close(select_list_pipe[1]);
6606                 close(select_resp_pipe[0]);
6607                 spawn(r->ws->idx, &a, 0);
6608                 break;
6609         default: /* parent */
6610                 close(select_list_pipe[0]);
6611                 close(select_resp_pipe[1]);
6612                 break;
6613         }
6614
6615         for (i = 0; i < spawn_argc; i++)
6616                 free(real_args[i]);
6617         free(real_args);
6618 }
6619
6620 /* Argument tokenizer. */
6621 char *
6622 argsep(char **sp) {
6623         int                     single_quoted = 0, double_quoted = 0;
6624         char                    *arg, *cp, *next;
6625
6626         if (*sp == NULL)
6627                 return NULL;
6628
6629         /* Eat and move characters until end of argument is found. */
6630         for (arg = next = cp = *sp; *cp != '\0'; ++cp) {
6631                 if (!double_quoted && *cp == '\'') {
6632                         /* Eat single-quote. */
6633                         single_quoted = !single_quoted;
6634                 } else if (!single_quoted && *cp == '"') {
6635                         /* Eat double-quote. */
6636                         double_quoted = !double_quoted;
6637                 } else if (!single_quoted && *cp == '\\' && *(cp + 1) == '"') {
6638                         /* Eat backslash; copy escaped character to arg. */
6639                         *next++ = *(++cp);
6640                 } else if (!single_quoted && !double_quoted && *cp == '\\' &&
6641                     (*(cp + 1) == '\'' || *(cp + 1) == ' ')) {
6642                         /* Eat backslash; move escaped character. */
6643                         *next++ = *(++cp);
6644                 } else if (!single_quoted && !double_quoted &&
6645                     (*cp == ' ' || *cp == '\t')) {
6646                         /* Terminate argument. */
6647                         *next++ = '\0';
6648                         /* Point sp to beginning of next argument. */
6649                         *sp = ++cp;
6650                         break;
6651                 } else {
6652                         /* Move regular character. */
6653                         *next++ = *cp;
6654                 }
6655         }
6656
6657         /* Terminate argument if end of string. */
6658         if (*cp == '\0') {
6659                 *next = '\0';
6660                 *sp = NULL;
6661         }
6662
6663         return arg;
6664 }
6665
6666 void
6667 spawn_insert(const char *name, const char *args, int flags)
6668 {
6669         struct spawn_prog       *sp;
6670         char                    *arg, *dup, *ptr;
6671
6672         DNPRINTF(SWM_D_SPAWN, "spawn_insert: %s[%s]\n", name, args);
6673
6674         if (args == NULL || *args == '\0')
6675                 return;
6676
6677         if ((sp = calloc(1, sizeof *sp)) == NULL)
6678                 err(1, "spawn_insert: calloc");
6679         if ((sp->name = strdup(name)) == NULL)
6680                 err(1, "spawn_insert: strdup");
6681
6682         /* Convert the arguments to an argument list. */
6683         if ((ptr = dup = strdup(args)) == NULL)
6684                 err(1, "spawn_insert: strdup");
6685         while ((arg = argsep(&ptr)) != NULL) {
6686                 /* Null argument; skip it. */
6687                 if (*arg == '\0')
6688                         continue;
6689
6690                 sp->argc++;
6691                 if ((sp->argv = realloc(sp->argv, sp->argc *
6692                     sizeof *sp->argv)) == NULL)
6693                         err(1, "spawn_insert: realloc");
6694                 if ((sp->argv[sp->argc - 1] = strdup(arg)) == NULL)
6695                         err(1, "spawn_insert: strdup");
6696         }
6697         free(dup);
6698
6699         sp->flags = flags;
6700
6701         DNPRINTF(SWM_D_SPAWN, "arg %d: [%s]\n", sp->argc, sp->argv[sp->argc-1]);
6702         TAILQ_INSERT_TAIL(&spawns, sp, entry);
6703         DNPRINTF(SWM_D_SPAWN, "spawn_insert: leave\n");
6704 }
6705
6706 void
6707 spawn_remove(struct spawn_prog *sp)
6708 {
6709         int                     i;
6710
6711         DNPRINTF(SWM_D_SPAWN, "spawn_remove: %s\n", sp->name);
6712
6713         TAILQ_REMOVE(&spawns, sp, entry);
6714         for (i = 0; i < sp->argc; i++)
6715                 free(sp->argv[i]);
6716         free(sp->argv);
6717         free(sp->name);
6718         free(sp);
6719
6720         DNPRINTF(SWM_D_SPAWN, "spawn_remove: leave\n");
6721 }
6722
6723 struct spawn_prog*
6724 spawn_find(const char *name)
6725 {
6726         struct spawn_prog       *sp;
6727
6728         TAILQ_FOREACH(sp, &spawns, entry)
6729                 if (strcasecmp(sp->name, name) == 0)
6730                         return sp;
6731
6732         return NULL;
6733 }
6734
6735 void
6736 setspawn(const char *name, const char *args, int flags)
6737 {
6738         struct spawn_prog       *sp;
6739
6740         DNPRINTF(SWM_D_SPAWN, "setspawn: %s\n", name);
6741
6742         if (name == NULL)
6743                 return;
6744
6745         /* Remove any old spawn under the same name. */
6746         if ((sp = spawn_find(name)) != NULL)
6747                 spawn_remove(sp);
6748
6749         if (*args != '\0')
6750                 spawn_insert(name, args, flags);
6751         else
6752                 warnx("error: setspawn: cannot find program: %s", name);
6753
6754         DNPRINTF(SWM_D_SPAWN, "setspawn: leave\n");
6755 }
6756
6757 int
6758 setconfspawn(const char *selector, const char *value, int flags)
6759 {
6760         char            *args;
6761
6762         if (selector == NULL || strlen(selector) == 0)
6763                 return (1);
6764
6765         args = expand_tilde(value);
6766
6767         DNPRINTF(SWM_D_SPAWN, "setconfspawn: [%s] [%s]\n", selector, args);
6768
6769         setspawn(selector, args, flags);
6770         free(args);
6771
6772         DNPRINTF(SWM_D_SPAWN, "setconfspawn: done.\n");
6773         return (0);
6774 }
6775
6776 void
6777 validate_spawns(void)
6778 {
6779         struct spawn_prog       *sp;
6780         char                    which[PATH_MAX];
6781         size_t                  i;
6782
6783         struct key              *kp;
6784
6785         RB_FOREACH(kp, key_tree, &keys) {
6786                 if (kp->funcid != KF_SPAWN_CUSTOM)
6787                         continue;
6788
6789                 /* find program */
6790                 sp = spawn_find(kp->spawn_name);
6791                 if (sp == NULL || sp->flags & SWM_SPAWN_OPTIONAL)
6792                         continue;
6793
6794                 /* verify we have the goods */
6795                 snprintf(which, sizeof which, "which %s", sp->argv[0]);
6796                 DNPRINTF(SWM_D_CONF, "validate_spawns: which %s\n",
6797                     sp->argv[0]);
6798                 for (i = strlen("which "); i < strlen(which); i++)
6799                         if (which[i] == ' ') {
6800                                 which[i] = '\0';
6801                                 break;
6802                         }
6803                 if (system(which) != 0)
6804                         add_startup_exception("could not find %s",
6805                             &which[strlen("which ")]);
6806         }
6807 }
6808
6809 void
6810 setup_spawn(void)
6811 {
6812         setconfspawn("lock",            "xlock",                0);
6813
6814         setconfspawn("term",            "xterm",                0);
6815         setconfspawn("spawn_term",      "xterm",                0);
6816
6817         setconfspawn("menu",            "dmenu_run"
6818                                         " $dmenu_bottom"
6819                                         " -fn $bar_font"
6820                                         " -nb $bar_color"
6821                                         " -nf $bar_font_color"
6822                                         " -sb $bar_border"
6823                                         " -sf $bar_color",      0);
6824
6825         setconfspawn("search",          "dmenu"
6826                                         " $dmenu_bottom"
6827                                         " -i"
6828                                         " -fn $bar_font"
6829                                         " -nb $bar_color"
6830                                         " -nf $bar_font_color"
6831                                         " -sb $bar_border"
6832                                         " -sf $bar_color",      0);
6833
6834         setconfspawn("name_workspace",  "dmenu"
6835                                         " $dmenu_bottom"
6836                                         " -p Workspace"
6837                                         " -fn $bar_font"
6838                                         " -nb $bar_color"
6839                                         " -nf $bar_font_color"
6840                                         " -sb $bar_border"
6841                                         " -sf $bar_color",      0);
6842
6843          /* These are not verified for existence, even with a binding set. */
6844         setconfspawn("screenshot_all",  "screenshot.sh full",   SWM_SPAWN_OPTIONAL);
6845         setconfspawn("screenshot_wind", "screenshot.sh window", SWM_SPAWN_OPTIONAL);
6846         setconfspawn("initscr",         "initscreen.sh",        SWM_SPAWN_OPTIONAL);
6847 }
6848
6849 /* key bindings */
6850 #define SWM_MODNAME_SIZE        32
6851 #define SWM_KEY_WS              "\n+ \t"
6852 int
6853 parsekeys(const char *keystr, unsigned int currmod, unsigned int *mod, KeySym *ks)
6854 {
6855         char                    *str, *cp, *name;
6856         KeySym                  uks;
6857
6858         DNPRINTF(SWM_D_KEY, "parsekeys: enter [%s]\n", keystr);
6859         if (mod == NULL || ks == NULL) {
6860                 DNPRINTF(SWM_D_KEY, "parsekeys: no mod or key vars\n");
6861                 return (1);
6862         }
6863         if (keystr == NULL || strlen(keystr) == 0) {
6864                 DNPRINTF(SWM_D_KEY, "parsekeys: no keystr\n");
6865                 return (1);
6866         }
6867
6868         if ((cp = str = strdup(keystr)) == NULL)
6869                 err(1, "parsekeys: strdup");
6870
6871         *ks = XCB_NO_SYMBOL;
6872         *mod = 0;
6873         while ((name = strsep(&cp, SWM_KEY_WS)) != NULL) {
6874                 DNPRINTF(SWM_D_KEY, "parsekeys: key [%s]\n", name);
6875                 if (cp)
6876                         cp += (long)strspn(cp, SWM_KEY_WS);
6877                 if (strncasecmp(name, "MOD", SWM_MODNAME_SIZE) == 0)
6878                         *mod |= currmod;
6879                 else if (strncasecmp(name, "Mod1", SWM_MODNAME_SIZE) == 0)
6880                         *mod |= XCB_MOD_MASK_1;
6881                 else if (strncasecmp(name, "Mod2", SWM_MODNAME_SIZE) == 0)
6882                         *mod += XCB_MOD_MASK_2;
6883                 else if (strncmp(name, "Mod3", SWM_MODNAME_SIZE) == 0)
6884                         *mod |= XCB_MOD_MASK_3;
6885                 else if (strncmp(name, "Mod4", SWM_MODNAME_SIZE) == 0)
6886                         *mod |= XCB_MOD_MASK_4;
6887                 else if (strncasecmp(name, "SHIFT", SWM_MODNAME_SIZE) == 0)
6888                         *mod |= XCB_MOD_MASK_SHIFT;
6889                 else if (strncasecmp(name, "CONTROL", SWM_MODNAME_SIZE) == 0)
6890                         *mod |= XCB_MOD_MASK_CONTROL;
6891                 else {
6892                         *ks = XStringToKeysym(name);
6893                         XConvertCase(*ks, ks, &uks);
6894                         if (ks == XCB_NO_SYMBOL) {
6895                                 DNPRINTF(SWM_D_KEY,
6896                                     "parsekeys: invalid key %s\n",
6897                                     name);
6898                                 free(str);
6899                                 return (1);
6900                         }
6901                 }
6902         }
6903
6904         free(str);
6905         DNPRINTF(SWM_D_KEY, "parsekeys: leave ok\n");
6906         return (0);
6907 }
6908
6909 char *
6910 strdupsafe(const char *str)
6911 {
6912         if (str == NULL)
6913                 return (NULL);
6914         else
6915                 return (strdup(str));
6916 }
6917
6918 void
6919 key_insert(unsigned int mod, KeySym ks, enum keyfuncid kfid,
6920     const char *spawn_name)
6921 {
6922         struct key              *kp;
6923
6924         DNPRINTF(SWM_D_KEY, "key_insert: enter %s [%s]\n",
6925             keyfuncs[kfid].name, spawn_name);
6926
6927         if ((kp = malloc(sizeof *kp)) == NULL)
6928                 err(1, "key_insert: malloc");
6929
6930         kp->mod = mod;
6931         kp->keysym = ks;
6932         kp->funcid = kfid;
6933         kp->spawn_name = strdupsafe(spawn_name);
6934         RB_INSERT(key_tree, &keys, kp);
6935
6936         DNPRINTF(SWM_D_KEY, "key_insert: leave\n");
6937 }
6938
6939 struct key *
6940 key_lookup(unsigned int mod, KeySym ks)
6941 {
6942         struct key              kp;
6943
6944         kp.keysym = ks;
6945         kp.mod = mod;
6946
6947         return (RB_FIND(key_tree, &keys, &kp));
6948 }
6949
6950 void
6951 key_remove(struct key *kp)
6952 {
6953         DNPRINTF(SWM_D_KEY, "key_remove: %s\n", keyfuncs[kp->funcid].name);
6954
6955         RB_REMOVE(key_tree, &keys, kp);
6956         free(kp->spawn_name);
6957         free(kp);
6958
6959         DNPRINTF(SWM_D_KEY, "key_remove: leave\n");
6960 }
6961
6962 void
6963 key_replace(struct key *kp, unsigned int mod, KeySym ks, enum keyfuncid kfid,
6964     const char *spawn_name)
6965 {
6966         DNPRINTF(SWM_D_KEY, "key_replace: %s [%s]\n", keyfuncs[kp->funcid].name,
6967             spawn_name);
6968
6969         key_remove(kp);
6970         key_insert(mod, ks, kfid, spawn_name);
6971
6972         DNPRINTF(SWM_D_KEY, "key_replace: leave\n");
6973 }
6974
6975 void
6976 setkeybinding(unsigned int mod, KeySym ks, enum keyfuncid kfid,
6977     const char *spawn_name)
6978 {
6979         struct key              *kp;
6980
6981         DNPRINTF(SWM_D_KEY, "setkeybinding: enter %s [%s]\n",
6982             keyfuncs[kfid].name, spawn_name);
6983
6984         if ((kp = key_lookup(mod, ks)) != NULL) {
6985                 if (kfid == KF_INVALID)
6986                         key_remove(kp);
6987                 else
6988                         key_replace(kp, mod, ks, kfid, spawn_name);
6989                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
6990                 return;
6991         }
6992         if (kfid == KF_INVALID) {
6993                 warnx("bind: Key combination already unbound.");
6994                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
6995                 return;
6996         }
6997
6998         key_insert(mod, ks, kfid, spawn_name);
6999         DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
7000 }
7001
7002 int
7003 setconfbinding(const char *selector, const char *value, int flags)
7004 {
7005         enum keyfuncid          kfid;
7006         unsigned int            mod;
7007         KeySym                  ks;
7008         struct spawn_prog       *sp;
7009
7010         /* suppress unused warning since var is needed */
7011         (void)flags;
7012
7013         DNPRINTF(SWM_D_KEY, "setconfbinding: enter selector: [%s], "
7014             "value: [%s]\n", selector, value);
7015         if (selector == NULL || strlen(selector) == 0) {
7016                 DNPRINTF(SWM_D_KEY, "setconfbinding: unbind %s\n", value);
7017                 if (parsekeys(value, mod_key, &mod, &ks) == 0) {
7018                         kfid = KF_INVALID;
7019                         setkeybinding(mod, ks, kfid, NULL);
7020                         return (0);
7021                 } else
7022                         return (1);
7023         }
7024         /* search by key function name */
7025         for (kfid = 0; kfid < KF_INVALID; (kfid)++) {
7026                 if (strncasecmp(selector, keyfuncs[kfid].name,
7027                     SWM_FUNCNAME_LEN) == 0) {
7028                         DNPRINTF(SWM_D_KEY, "setconfbinding: %s: match "
7029                             "keyfunc\n", selector);
7030                         if (parsekeys(value, mod_key, &mod, &ks) == 0) {
7031                                 setkeybinding(mod, ks, kfid, NULL);
7032                                 return (0);
7033                         } else
7034                                 return (1);
7035                 }
7036         }
7037         /* search by custom spawn name */
7038         if ((sp = spawn_find(selector)) != NULL) {
7039                 DNPRINTF(SWM_D_KEY, "setconfbinding: %s: match "
7040                     "spawn\n", selector);
7041                 if (parsekeys(value, mod_key, &mod, &ks) == 0) {
7042                         setkeybinding(mod, ks, KF_SPAWN_CUSTOM,
7043                             sp->name);
7044                         return (0);
7045                 } else
7046                         return (1);
7047         }
7048         DNPRINTF(SWM_D_KEY, "setconfbinding: no match\n");
7049         return (1);
7050 }
7051
7052 void
7053 setup_keys(void)
7054 {
7055 #define MODKEY_SHIFT    MODKEY | XCB_MOD_MASK_SHIFT
7056         setkeybinding(MODKEY,           XK_b,           KF_BAR_TOGGLE,  NULL);
7057         setkeybinding(MODKEY_SHIFT,     XK_b,           KF_BAR_TOGGLE_WS,NULL);
7058         setkeybinding(MODKEY,           XK_v,           KF_BUTTON2,     NULL);
7059         setkeybinding(MODKEY,           XK_space,       KF_CYCLE_LAYOUT,NULL);
7060         setkeybinding(MODKEY_SHIFT,     XK_backslash,   KF_FLIP_LAYOUT, NULL);
7061         setkeybinding(MODKEY,           XK_t,           KF_FLOAT_TOGGLE,NULL);
7062         setkeybinding(MODKEY,           XK_m,           KF_FOCUS_MAIN,  NULL);
7063         setkeybinding(MODKEY,           XK_j,           KF_FOCUS_NEXT,  NULL);
7064         setkeybinding(MODKEY,           XK_Tab,         KF_FOCUS_NEXT,  NULL);
7065         setkeybinding(MODKEY,           XK_k,           KF_FOCUS_PREV,  NULL);
7066         setkeybinding(MODKEY_SHIFT,     XK_Tab,         KF_FOCUS_PREV,  NULL);
7067         setkeybinding(MODKEY,           XK_u,           KF_FOCUS_URGENT,NULL);
7068         setkeybinding(MODKEY,           XK_e,           KF_MAXIMIZE_TOGGLE,NULL);
7069         setkeybinding(MODKEY_SHIFT,     XK_equal,       KF_HEIGHT_GROW,NULL);
7070         setkeybinding(MODKEY_SHIFT,     XK_minus,       KF_HEIGHT_SHRINK,NULL);
7071         setkeybinding(MODKEY,           XK_w,           KF_ICONIFY,     NULL);
7072         setkeybinding(MODKEY,           XK_h,           KF_MASTER_SHRINK, NULL);
7073         setkeybinding(MODKEY,           XK_l,           KF_MASTER_GROW, NULL);
7074         setkeybinding(MODKEY,           XK_comma,       KF_MASTER_ADD,  NULL);
7075         setkeybinding(MODKEY,           XK_period,      KF_MASTER_DEL,  NULL);
7076         setkeybinding(MODKEY_SHIFT,     XK_bracketright,KF_MOVE_DOWN,NULL);
7077         setkeybinding(MODKEY,           XK_bracketleft, KF_MOVE_LEFT,NULL);
7078         setkeybinding(MODKEY,           XK_bracketright,KF_MOVE_RIGHT,NULL);
7079         setkeybinding(MODKEY_SHIFT,     XK_bracketleft, KF_MOVE_UP,     NULL);
7080         setkeybinding(MODKEY_SHIFT,     XK_KP_End,      KF_MVRG_1,      NULL);
7081         setkeybinding(MODKEY_SHIFT,     XK_KP_Down,     KF_MVRG_2,      NULL);
7082         setkeybinding(MODKEY_SHIFT,     XK_KP_Next,     KF_MVRG_3,      NULL);
7083         setkeybinding(MODKEY_SHIFT,     XK_KP_Left,     KF_MVRG_4,      NULL);
7084         setkeybinding(MODKEY_SHIFT,     XK_KP_Begin,    KF_MVRG_5,      NULL);
7085         setkeybinding(MODKEY_SHIFT,     XK_KP_Right,    KF_MVRG_6,      NULL);
7086         setkeybinding(MODKEY_SHIFT,     XK_KP_Home,     KF_MVRG_7,      NULL);
7087         setkeybinding(MODKEY_SHIFT,     XK_KP_Up,       KF_MVRG_8,      NULL);
7088         setkeybinding(MODKEY_SHIFT,     XK_KP_Prior,    KF_MVRG_9,      NULL);
7089         setkeybinding(MODKEY_SHIFT,     XK_1,           KF_MVWS_1,      NULL);
7090         setkeybinding(MODKEY_SHIFT,     XK_2,           KF_MVWS_2,      NULL);
7091         setkeybinding(MODKEY_SHIFT,     XK_3,           KF_MVWS_3,      NULL);
7092         setkeybinding(MODKEY_SHIFT,     XK_4,           KF_MVWS_4,      NULL);
7093         setkeybinding(MODKEY_SHIFT,     XK_5,           KF_MVWS_5,      NULL);
7094         setkeybinding(MODKEY_SHIFT,     XK_6,           KF_MVWS_6,      NULL);
7095         setkeybinding(MODKEY_SHIFT,     XK_7,           KF_MVWS_7,      NULL);
7096         setkeybinding(MODKEY_SHIFT,     XK_8,           KF_MVWS_8,      NULL);
7097         setkeybinding(MODKEY_SHIFT,     XK_9,           KF_MVWS_9,      NULL);
7098         setkeybinding(MODKEY_SHIFT,     XK_0,           KF_MVWS_10,     NULL);
7099         setkeybinding(MODKEY_SHIFT,     XK_F1,          KF_MVWS_11,     NULL);
7100         setkeybinding(MODKEY_SHIFT,     XK_F2,          KF_MVWS_12,     NULL);
7101         setkeybinding(MODKEY_SHIFT,     XK_F3,          KF_MVWS_13,     NULL);
7102         setkeybinding(MODKEY_SHIFT,     XK_F4,          KF_MVWS_14,     NULL);
7103         setkeybinding(MODKEY_SHIFT,     XK_F5,          KF_MVWS_15,     NULL);
7104         setkeybinding(MODKEY_SHIFT,     XK_F6,          KF_MVWS_16,     NULL);
7105         setkeybinding(MODKEY_SHIFT,     XK_F7,          KF_MVWS_17,     NULL);
7106         setkeybinding(MODKEY_SHIFT,     XK_F8,          KF_MVWS_18,     NULL);
7107         setkeybinding(MODKEY_SHIFT,     XK_F9,          KF_MVWS_19,     NULL);
7108         setkeybinding(MODKEY_SHIFT,     XK_F10,         KF_MVWS_20,     NULL);
7109         setkeybinding(MODKEY_SHIFT,     XK_F11,         KF_MVWS_21,     NULL);
7110         setkeybinding(MODKEY_SHIFT,     XK_F12,         KF_MVWS_22,     NULL);
7111         setkeybinding(MODKEY_SHIFT,     XK_slash,       KF_NAME_WORKSPACE,NULL);
7112         setkeybinding(MODKEY_SHIFT,     XK_q,           KF_QUIT,        NULL);
7113         setkeybinding(MODKEY_SHIFT,     XK_r,           KF_RAISE_TOGGLE,NULL);
7114         setkeybinding(MODKEY,           XK_q,           KF_RESTART,     NULL);
7115         setkeybinding(MODKEY,           XK_KP_End,      KF_RG_1,        NULL);
7116         setkeybinding(MODKEY,           XK_KP_Down,     KF_RG_2,        NULL);
7117         setkeybinding(MODKEY,           XK_KP_Next,     KF_RG_3,        NULL);
7118         setkeybinding(MODKEY,           XK_KP_Left,     KF_RG_4,        NULL);
7119         setkeybinding(MODKEY,           XK_KP_Begin,    KF_RG_5,        NULL);
7120         setkeybinding(MODKEY,           XK_KP_Right,    KF_RG_6,        NULL);
7121         setkeybinding(MODKEY,           XK_KP_Home,     KF_RG_7,        NULL);
7122         setkeybinding(MODKEY,           XK_KP_Up,       KF_RG_8,        NULL);
7123         setkeybinding(MODKEY,           XK_KP_Prior,    KF_RG_9,        NULL);
7124         setkeybinding(MODKEY_SHIFT,     XK_Right,       KF_RG_NEXT,     NULL);
7125         setkeybinding(MODKEY_SHIFT,     XK_Left,        KF_RG_PREV,     NULL);
7126         setkeybinding(MODKEY,           XK_f,           KF_SEARCH_WIN,  NULL);
7127         setkeybinding(MODKEY,           XK_slash,       KF_SEARCH_WORKSPACE,NULL);
7128         setkeybinding(MODKEY_SHIFT,     XK_i,           KF_SPAWN_CUSTOM,"initscr");
7129         setkeybinding(MODKEY_SHIFT,     XK_Delete,      KF_SPAWN_CUSTOM,"lock");
7130         setkeybinding(MODKEY,           XK_p,           KF_SPAWN_CUSTOM,"menu");
7131         setkeybinding(MODKEY,           XK_s,           KF_SPAWN_CUSTOM,"screenshot_all");
7132         setkeybinding(MODKEY_SHIFT,     XK_s,           KF_SPAWN_CUSTOM,"screenshot_wind");
7133         setkeybinding(MODKEY_SHIFT,     XK_Return,      KF_SPAWN_CUSTOM,"term");
7134         setkeybinding(MODKEY_SHIFT,     XK_comma,       KF_STACK_INC,   NULL);
7135         setkeybinding(MODKEY_SHIFT,     XK_period,      KF_STACK_DEC,   NULL);
7136         setkeybinding(MODKEY_SHIFT,     XK_space,       KF_STACK_RESET, NULL);
7137         setkeybinding(MODKEY,           XK_Return,      KF_SWAP_MAIN,   NULL);
7138         setkeybinding(MODKEY_SHIFT,     XK_j,           KF_SWAP_NEXT,   NULL);
7139         setkeybinding(MODKEY_SHIFT,     XK_k,           KF_SWAP_PREV,   NULL);
7140         setkeybinding(MODKEY_SHIFT,     XK_w,           KF_UNICONIFY,   NULL);
7141         setkeybinding(MODKEY_SHIFT,     XK_v,           KF_VERSION,     NULL);
7142         setkeybinding(MODKEY,           XK_equal,       KF_WIDTH_GROW,  NULL);
7143         setkeybinding(MODKEY,           XK_minus,       KF_WIDTH_SHRINK,NULL);
7144         setkeybinding(MODKEY,           XK_x,           KF_WIND_DEL,    NULL);
7145         setkeybinding(MODKEY_SHIFT,     XK_x,           KF_WIND_KILL,   NULL);
7146         setkeybinding(MODKEY,           XK_1,           KF_WS_1,        NULL);
7147         setkeybinding(MODKEY,           XK_2,           KF_WS_2,        NULL);
7148         setkeybinding(MODKEY,           XK_3,           KF_WS_3,        NULL);
7149         setkeybinding(MODKEY,           XK_4,           KF_WS_4,        NULL);
7150         setkeybinding(MODKEY,           XK_5,           KF_WS_5,        NULL);
7151         setkeybinding(MODKEY,           XK_6,           KF_WS_6,        NULL);
7152         setkeybinding(MODKEY,           XK_7,           KF_WS_7,        NULL);
7153         setkeybinding(MODKEY,           XK_8,           KF_WS_8,        NULL);
7154         setkeybinding(MODKEY,           XK_9,           KF_WS_9,        NULL);
7155         setkeybinding(MODKEY,           XK_0,           KF_WS_10,       NULL);
7156         setkeybinding(MODKEY,           XK_F1,          KF_WS_11,       NULL);
7157         setkeybinding(MODKEY,           XK_F2,          KF_WS_12,       NULL);
7158         setkeybinding(MODKEY,           XK_F3,          KF_WS_13,       NULL);
7159         setkeybinding(MODKEY,           XK_F4,          KF_WS_14,       NULL);
7160         setkeybinding(MODKEY,           XK_F5,          KF_WS_15,       NULL);
7161         setkeybinding(MODKEY,           XK_F6,          KF_WS_16,       NULL);
7162         setkeybinding(MODKEY,           XK_F7,          KF_WS_17,       NULL);
7163         setkeybinding(MODKEY,           XK_F8,          KF_WS_18,       NULL);
7164         setkeybinding(MODKEY,           XK_F9,          KF_WS_19,       NULL);
7165         setkeybinding(MODKEY,           XK_F10,         KF_WS_20,       NULL);
7166         setkeybinding(MODKEY,           XK_F11,         KF_WS_21,       NULL);
7167         setkeybinding(MODKEY,           XK_F12,         KF_WS_22,       NULL);
7168         setkeybinding(MODKEY,           XK_Right,       KF_WS_NEXT,     NULL);
7169         setkeybinding(MODKEY,           XK_Left,        KF_WS_PREV,     NULL);
7170         setkeybinding(MODKEY,           XK_Up,          KF_WS_NEXT_ALL, NULL);
7171         setkeybinding(MODKEY,           XK_Down,        KF_WS_PREV_ALL, NULL);
7172         setkeybinding(MODKEY_SHIFT,     XK_Up,          KF_WS_NEXT_MOVE,NULL);
7173         setkeybinding(MODKEY_SHIFT,     XK_Down,        KF_WS_PREV_MOVE,NULL);
7174         setkeybinding(MODKEY,           XK_a,           KF_WS_PRIOR,    NULL);
7175 #ifdef SWM_DEBUG
7176         setkeybinding(MODKEY_SHIFT,     XK_d,           KF_DUMPWINS,    NULL);
7177 #endif
7178 #undef MODKEY_SHIFT
7179 }
7180
7181 void
7182 clear_keys(void)
7183 {
7184         struct key              *kp;
7185
7186         while (RB_EMPTY(&keys) == 0) {
7187                 kp = RB_ROOT(&keys);
7188                 key_remove(kp);
7189         }
7190 }
7191
7192 int
7193 setkeymapping(const char *selector, const char *value, int flags)
7194 {
7195         char                    *keymapping_file;
7196
7197         /* suppress unused warnings since vars are needed */
7198         (void)selector;
7199         (void)flags;
7200
7201         DNPRINTF(SWM_D_KEY, "setkeymapping: enter\n");
7202
7203         keymapping_file = expand_tilde(value);
7204
7205         clear_keys();
7206         /* load new key bindings; if it fails, revert to default bindings */
7207         if (conf_load(keymapping_file, SWM_CONF_KEYMAPPING)) {
7208                 clear_keys();
7209                 setup_keys();
7210         }
7211
7212         free(keymapping_file);
7213
7214         DNPRINTF(SWM_D_KEY, "setkeymapping: leave\n");
7215         return (0);
7216 }
7217
7218 void
7219 updatenumlockmask(void)
7220 {
7221         unsigned int                            i, j;
7222         xcb_get_modifier_mapping_reply_t        *modmap_r;
7223         xcb_keycode_t                           *modmap, kc, *keycode;
7224
7225         numlockmask = 0;
7226
7227         modmap_r = xcb_get_modifier_mapping_reply(conn,
7228             xcb_get_modifier_mapping(conn),
7229             NULL);
7230         if (modmap_r) {
7231                 modmap = xcb_get_modifier_mapping_keycodes(modmap_r);
7232                 for (i = 0; i < 8; i++) {
7233                         for (j = 0; j < modmap_r->keycodes_per_modifier; j++) {
7234                                 kc = modmap[i * modmap_r->keycodes_per_modifier
7235                                     + j];
7236                                 keycode = xcb_key_symbols_get_keycode(syms,
7237                                                 XK_Num_Lock);
7238                                 if (keycode) {
7239                                         if (kc == *keycode)
7240                                                 numlockmask = (1 << i);
7241                                         free(keycode);
7242                                 }
7243                         }
7244                 }
7245                 free(modmap_r);
7246         }
7247         DNPRINTF(SWM_D_MISC, "updatenumlockmask: %d\n", numlockmask);
7248 }
7249
7250 void
7251 grabkeys(void)
7252 {
7253         struct key              *kp;
7254         int                     num_screens, k, j;
7255         unsigned int            modifiers[4];
7256         xcb_keycode_t           *code;
7257
7258         DNPRINTF(SWM_D_MISC, "grabkeys\n");
7259         updatenumlockmask();
7260
7261         modifiers[0] = 0;
7262         modifiers[1] = numlockmask;
7263         modifiers[2] = XCB_MOD_MASK_LOCK;
7264         modifiers[3] = numlockmask | XCB_MOD_MASK_LOCK;
7265
7266         num_screens = get_screen_count();
7267         for (k = 0; k < num_screens; k++) {
7268                 if (TAILQ_EMPTY(&screens[k].rl))
7269                         continue;
7270                 xcb_ungrab_key(conn, XCB_GRAB_ANY, screens[k].root,
7271                         XCB_MOD_MASK_ANY);
7272                 RB_FOREACH(kp, key_tree, &keys) {
7273                         /* Skip unused ws binds. */
7274                         if ((int)kp->funcid > KF_WS_1 + workspace_limit - 1 &&
7275                             kp->funcid <= KF_WS_22)
7276                                 continue;
7277
7278                         /* Skip unused mvws binds. */
7279                         if ((int)kp->funcid > KF_MVWS_1 + workspace_limit - 1 &&
7280                             kp->funcid <= KF_MVWS_22)
7281                                 continue;
7282
7283                         if ((code = xcb_key_symbols_get_keycode(syms,
7284                                         kp->keysym))) {
7285                                 for (j = 0; j < LENGTH(modifiers); j++)
7286                                         xcb_grab_key(conn, 1,
7287                                             screens[k].root,
7288                                             kp->mod | modifiers[j],
7289                                             *code, XCB_GRAB_MODE_SYNC,
7290                                             XCB_GRAB_MODE_SYNC);
7291                                 free(code);
7292                         }
7293                 }
7294         }
7295 }
7296
7297 void
7298 grabbuttons(struct ws_win *win)
7299 {
7300         unsigned int    modifiers[4];
7301         int             i, j;
7302
7303         DNPRINTF(SWM_D_MOUSE, "grabbuttons: win %#x\n", win->id);
7304         updatenumlockmask();
7305
7306         modifiers[0] = 0;
7307         modifiers[1] = numlockmask;
7308         modifiers[2] = XCB_MOD_MASK_LOCK;
7309         modifiers[3] = numlockmask | XCB_MOD_MASK_LOCK;
7310
7311         for (i = 0; i < LENGTH(buttons); i++)
7312                 if (buttons[i].action == client_click)
7313                         for (j = 0; j < LENGTH(modifiers); ++j)
7314                                 xcb_grab_button(conn, 0, win->id, BUTTONMASK,
7315                                     XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC,
7316                                     XCB_WINDOW_NONE, XCB_CURSOR_NONE,
7317                                     buttons[i].button, buttons[i].mask |
7318                                     modifiers[j]);
7319 }
7320
7321 const char *quirkname[] = {
7322         "NONE",         /* config string for "no value" */
7323         "FLOAT",
7324         "TRANSSZ",
7325         "ANYWHERE",
7326         "XTERM_FONTADJ",
7327         "FULLSCREEN",
7328         "FOCUSPREV",
7329         "NOFOCUSONMAP",
7330         "FOCUSONMAP_SINGLE",
7331 };
7332
7333 /* SWM_Q_WS: retain '|' for back compat for now (2009-08-11) */
7334 #define SWM_Q_WS                "\n|+ \t"
7335 int
7336 parsequirks(const char *qstr, unsigned long *quirk)
7337 {
7338         char                    *str, *cp, *name;
7339         int                     i;
7340
7341         if (quirk == NULL || qstr == NULL)
7342                 return (1);
7343
7344         if ((str = strdup(qstr)) == NULL)
7345                 err(1, "parsequirks: strdup");
7346
7347         cp = str;
7348         *quirk = 0;
7349         while ((name = strsep(&cp, SWM_Q_WS)) != NULL) {
7350                 if (cp)
7351                         cp += (long)strspn(cp, SWM_Q_WS);
7352                 for (i = 0; i < LENGTH(quirkname); i++) {
7353                         if (strncasecmp(name, quirkname[i],
7354                             SWM_QUIRK_LEN) == 0) {
7355                                 DNPRINTF(SWM_D_QUIRK,
7356                                     "parsequirks: %s\n", name);
7357                                 if (i == 0) {
7358                                         *quirk = 0;
7359                                         free(str);
7360                                         return (0);
7361                                 }
7362                                 *quirk |= 1 << (i-1);
7363                                 break;
7364                         }
7365                 }
7366                 if (i >= LENGTH(quirkname)) {
7367                         DNPRINTF(SWM_D_QUIRK,
7368                             "parsequirks: invalid quirk [%s]\n", name);
7369                         free(str);
7370                         return (1);
7371                 }
7372         }
7373
7374         free(str);
7375         return (0);
7376 }
7377
7378 void
7379 quirk_insert(const char *class, const char *instance, const char *name,
7380     unsigned long quirk)
7381 {
7382         struct quirk            *qp;
7383         int                     failed = 0;
7384         char                    *str;
7385
7386         DNPRINTF(SWM_D_QUIRK, "quirk_insert: class: %s, instance: %s, name: %s,"
7387             " value: %lu\n", class, instance, name, quirk);
7388
7389         if ((qp = malloc(sizeof *qp)) == NULL)
7390                 err(1, "quirk_insert: malloc");
7391
7392         if ((qp->class = strdup(class)) == NULL)
7393                 err(1, "quirk_insert: strdup");
7394         if ((qp->instance = strdup(instance)) == NULL)
7395                 err(1, "quirk_insert: strdup");
7396         if ((qp->name = strdup(name)) == NULL)
7397                 err(1, "quirk_insert: strdup");
7398
7399         if (asprintf(&str, "^%s$", class) == -1)
7400                 err(1, "quirk_insert: asprintf");
7401         if (regcomp(&qp->regex_class, str, REG_EXTENDED | REG_NOSUB)) {
7402                 add_startup_exception("regex failed to compile quirk 'class' "
7403                     "field: %s", class);
7404                 failed = 1;
7405         }
7406         DNPRINTF(SWM_D_QUIRK, "quirk_insert: compiled: %s\n", str);
7407         free(str);
7408
7409         if (asprintf(&str, "^%s$", instance) == -1)
7410                 err(1, "quirk_insert: asprintf");
7411         if (regcomp(&qp->regex_instance, str, REG_EXTENDED | REG_NOSUB)) {
7412                 add_startup_exception("regex failed to compile quirk 'instance'"
7413                     " field: %s", instance);
7414                 failed = 1;
7415         }
7416         DNPRINTF(SWM_D_QUIRK, "quirk_insert: compiled: %s\n", str);
7417         free(str);
7418
7419         if (asprintf(&str, "^%s$", name) == -1)
7420                 err(1, "quirk_insert: asprintf");
7421         if (regcomp(&qp->regex_name, str, REG_EXTENDED | REG_NOSUB)) {
7422                 add_startup_exception("regex failed to compile quirk 'name' "
7423                     "field: %s", name);
7424                 failed = 1;
7425         }
7426         DNPRINTF(SWM_D_QUIRK, "quirk_insert: compiled: %s\n", str);
7427         free(str);
7428
7429         if (failed) {
7430                 DNPRINTF(SWM_D_QUIRK, "quirk_insert: regex error; skipping.\n");
7431                 quirk_free(qp);
7432         } else {
7433                 qp->quirk = quirk;
7434                 TAILQ_INSERT_TAIL(&quirks, qp, entry);
7435         }
7436         DNPRINTF(SWM_D_QUIRK, "quirk_insert: leave\n");
7437 }
7438
7439 void
7440 quirk_remove(struct quirk *qp)
7441 {
7442         DNPRINTF(SWM_D_QUIRK, "quirk_remove: %s:%s [%lu]\n", qp->class,
7443             qp->name, qp->quirk);
7444
7445         TAILQ_REMOVE(&quirks, qp, entry);
7446         quirk_free(qp);
7447
7448         DNPRINTF(SWM_D_QUIRK, "quirk_remove: leave\n");
7449 }
7450
7451 void
7452 quirk_free(struct quirk *qp)
7453 {
7454         regfree(&qp->regex_class);
7455         regfree(&qp->regex_instance);
7456         regfree(&qp->regex_name);
7457         free(qp->class);
7458         free(qp->instance);
7459         free(qp->name);
7460         free(qp);
7461 }
7462
7463 void
7464 quirk_replace(struct quirk *qp, const char *class, const char *instance,
7465     const char *name, unsigned long quirk)
7466 {
7467         DNPRINTF(SWM_D_QUIRK, "quirk_replace: %s:%s:%s [%lu]\n", qp->class,
7468             qp->instance, qp->name, qp->quirk);
7469
7470         quirk_remove(qp);
7471         quirk_insert(class, instance, name, quirk);
7472
7473         DNPRINTF(SWM_D_QUIRK, "quirk_replace: leave\n");
7474 }
7475
7476 void
7477 setquirk(const char *class, const char *instance, const char *name,
7478     unsigned long quirk)
7479 {
7480         struct quirk            *qp;
7481
7482         DNPRINTF(SWM_D_QUIRK, "setquirk: enter %s:%s:%s [%lu]\n", class,
7483             instance, name, quirk);
7484
7485         /* Remove/replace existing quirk. */
7486         TAILQ_FOREACH(qp, &quirks, entry) {
7487                 if (strcmp(qp->class, class) == 0 &&
7488                     strcmp(qp->instance, instance) == 0 &&
7489                     strcmp(qp->name, name) == 0) {
7490                         if (quirk == 0)
7491                                 quirk_remove(qp);
7492                         else
7493                                 quirk_replace(qp, class, instance, name, quirk);
7494                         DNPRINTF(SWM_D_QUIRK, "setquirk: leave\n");
7495                         return;
7496                 }
7497         }
7498
7499         /* Only insert if quirk is not NONE. */
7500         if (quirk)
7501                 quirk_insert(class, instance, name, quirk);
7502
7503         DNPRINTF(SWM_D_QUIRK, "setquirk: leave\n");
7504 }
7505
7506 /* Eat '\' in str used to escape square brackets and colon. */
7507 void
7508 unescape_selector(char *str)
7509 {
7510         char *cp;
7511
7512         for (cp = str; *str != '\0'; ++str, ++cp) {
7513                 if (*str == '\\' && (*(str + 1) == ':' || *(str + 1) == ']' ||
7514                     *(str + 1) == '['))
7515                         ++str;
7516
7517                 *cp = *str;
7518         }
7519         *cp = '\0';
7520 }
7521
7522 int
7523 setconfquirk(const char *selector, const char *value, int flags)
7524 {
7525         char                    *str, *cp, *class;
7526         char                    *instance = NULL, *name = NULL;
7527         int                     retval, count = 0;
7528         unsigned long           qrks;
7529
7530         /* suppress unused warning since var is needed */
7531         (void)flags;
7532
7533         if (selector == NULL || strlen(selector) == 0)
7534                 return (0);
7535
7536         if ((str = strdup(selector)) == NULL)
7537                 err(1, "setconfquirk: strdup");
7538
7539         /* Find non-escaped colon. */
7540         class = cp = str;
7541         if (*cp == ':') {
7542                 *cp = '\0';
7543                 ++count;
7544         }
7545
7546         for (++cp; *cp != '\0'; ++cp) {
7547                 if (*cp == ':' && *(cp - 1) != '\\') {
7548                         *cp = '\0';
7549                         ++count;
7550                 }
7551         }
7552
7553         unescape_selector(class);
7554         if (count) {
7555                 instance = class + strlen(class) + 1;
7556                 unescape_selector(instance);
7557         } else {
7558                 instance = ".*";
7559         }
7560
7561         if (count > 1) {
7562                 name = instance + strlen(instance) + 1;
7563                 unescape_selector(name);
7564         } else {
7565                 name = ".*";
7566         }
7567
7568         DNPRINTF(SWM_D_CONF, "setconfquirk: class: %s, instance: %s, "
7569             "name: %s\n", class, instance, name);
7570
7571         if ((retval = parsequirks(value, &qrks)) == 0)
7572                 setquirk(class, instance, name, qrks);
7573
7574         free(str);
7575         return (retval);
7576 }
7577
7578 void
7579 setup_quirks(void)
7580 {
7581         setquirk("MPlayer",             "xv",           ".*",   SWM_Q_FLOAT | SWM_Q_FULLSCREEN | SWM_Q_FOCUSPREV);
7582         setquirk("OpenOffice.org 3.2",  "VCLSalFrame",  ".*",   SWM_Q_FLOAT);
7583         setquirk("Firefox-bin",         "firefox-bin",  ".*",   SWM_Q_TRANSSZ);
7584         setquirk("Firefox",             "Dialog",       ".*",   SWM_Q_FLOAT);
7585         setquirk("Gimp",                "gimp",         ".*",   SWM_Q_FLOAT | SWM_Q_ANYWHERE);
7586         setquirk("XTerm",               "xterm",        ".*",   SWM_Q_XTERM_FONTADJ);
7587         setquirk("xine",                "Xine Window",  ".*",   SWM_Q_FLOAT | SWM_Q_ANYWHERE);
7588         setquirk("Xitk",                "Xitk Combo",   ".*",   SWM_Q_FLOAT | SWM_Q_ANYWHERE);
7589         setquirk("xine",                "xine Panel",   ".*",   SWM_Q_FLOAT | SWM_Q_ANYWHERE);
7590         setquirk("Xitk",                "Xine Window",  ".*",   SWM_Q_FLOAT | SWM_Q_ANYWHERE);
7591         setquirk("xine",                "xine Video Fullscreen Window", ".*",   SWM_Q_FULLSCREEN | SWM_Q_FLOAT);
7592         setquirk("pcb",                 "pcb",          ".*",   SWM_Q_FLOAT);
7593         setquirk("SDL_App",             "SDL_App",      ".*",   SWM_Q_FLOAT | SWM_Q_FULLSCREEN);
7594 }
7595
7596 /* conf file stuff */
7597 #define SWM_CONF_FILE           "spectrwm.conf"
7598 #define SWM_CONF_FILE_OLD       "scrotwm.conf"
7599
7600 enum {
7601         SWM_S_BAR_ACTION,
7602         SWM_S_BAR_AT_BOTTOM,
7603         SWM_S_BAR_BORDER_WIDTH,
7604         SWM_S_BAR_DELAY,
7605         SWM_S_BAR_ENABLED,
7606         SWM_S_BAR_ENABLED_WS,
7607         SWM_S_BAR_FONT,
7608         SWM_S_BAR_FORMAT,
7609         SWM_S_BAR_JUSTIFY,
7610         SWM_S_BORDER_WIDTH,
7611         SWM_S_BOUNDARY_WIDTH,
7612         SWM_S_CLOCK_ENABLED,
7613         SWM_S_CLOCK_FORMAT,
7614         SWM_S_CYCLE_EMPTY,
7615         SWM_S_CYCLE_VISIBLE,
7616         SWM_S_DIALOG_RATIO,
7617         SWM_S_DISABLE_BORDER,
7618         SWM_S_FOCUS_CLOSE,
7619         SWM_S_FOCUS_CLOSE_WRAP,
7620         SWM_S_FOCUS_DEFAULT,
7621         SWM_S_FOCUS_MODE,
7622         SWM_S_ICONIC_ENABLED,
7623         SWM_S_REGION_PADDING,
7624         SWM_S_SPAWN_ORDER,
7625         SWM_S_SPAWN_TERM,
7626         SWM_S_SS_APP,
7627         SWM_S_SS_ENABLED,
7628         SWM_S_STACK_ENABLED,
7629         SWM_S_TERM_WIDTH,
7630         SWM_S_TILE_GAP,
7631         SWM_S_URGENT_ENABLED,
7632         SWM_S_VERBOSE_LAYOUT,
7633         SWM_S_WINDOW_CLASS_ENABLED,
7634         SWM_S_WINDOW_INSTANCE_ENABLED,
7635         SWM_S_WINDOW_NAME_ENABLED,
7636         SWM_S_WORKSPACE_LIMIT
7637 };
7638
7639 int
7640 setconfvalue(const char *selector, const char *value, int flags)
7641 {
7642         struct workspace        *ws;
7643         int                     i, ws_id, num_screens;
7644         char                    *b, *str;
7645
7646         switch (flags) {
7647         case SWM_S_BAR_ACTION:
7648                 free(bar_argv[0]);
7649                 if ((bar_argv[0] = expand_tilde(value)) == NULL)
7650                         err(1, "setconfvalue: bar_action");
7651                 break;
7652         case SWM_S_BAR_AT_BOTTOM:
7653                 bar_at_bottom = atoi(value);
7654                 break;
7655         case SWM_S_BAR_BORDER_WIDTH:
7656                 bar_border_width = atoi(value);
7657                 if (bar_border_width < 0)
7658                         bar_border_width = 0;
7659                 break;
7660         case SWM_S_BAR_DELAY:
7661                 /* No longer needed; leave to not break old conf files. */
7662                 break;
7663         case SWM_S_BAR_ENABLED:
7664                 bar_enabled = atoi(value);
7665                 break;
7666         case SWM_S_BAR_ENABLED_WS:
7667                 ws_id = atoi(selector) - 1;
7668                 if (ws_id < 0 || ws_id >= workspace_limit)
7669                         errx(1, "setconfvalue: bar_enabled_ws: invalid "
7670                             "workspace %d.", ws_id + 1);
7671
7672                 num_screens = get_screen_count();
7673                 for (i = 0; i < num_screens; i++) {
7674                         ws = (struct workspace *)&screens[i].ws;
7675                         ws[ws_id].bar_enabled = atoi(value);
7676                 }
7677                 break;
7678         case SWM_S_BAR_FONT:
7679                 b = bar_fonts;
7680                 if (asprintf(&bar_fonts, "%s,%s", value, bar_fonts) == -1)
7681                         err(1, "setconfvalue: asprintf: failed to allocate "
7682                                 "memory for bar_fonts.");
7683                 free(b);
7684
7685                 /* If already in xft mode, then we are done. */
7686                 if (!bar_font_legacy)
7687                         break;
7688
7689                 if ((str = strdup(value)) == NULL)
7690                         err(1, "setconfvalue: strdup");
7691
7692                 /* If there are any non-XLFD entries, switch to Xft mode. */
7693                 while ((b = strsep(&str, ",")) != NULL) {
7694                         if (*b == '\0')
7695                                 continue;
7696                         if (!isxlfd(b)) {
7697                                 bar_font_legacy = 0;
7698                                 break;
7699                         }
7700                 }
7701
7702                 free(str);
7703                 break;
7704         case SWM_S_BAR_FORMAT:
7705                 free(bar_format);
7706                 if ((bar_format = strdup(value)) == NULL)
7707                         err(1, "setconfvalue: bar_format");
7708                 break;
7709         case SWM_S_BAR_JUSTIFY:
7710                 if (strcmp(value, "left") == 0)
7711                         bar_justify = SWM_BAR_JUSTIFY_LEFT;
7712                 else if (strcmp(value, "center") == 0)
7713                         bar_justify = SWM_BAR_JUSTIFY_CENTER;
7714                 else if (strcmp(value, "right") == 0)
7715                         bar_justify = SWM_BAR_JUSTIFY_RIGHT;
7716                 else
7717                         errx(1, "invalid bar_justify");
7718                 break;
7719         case SWM_S_BORDER_WIDTH:
7720                 border_width = atoi(value);
7721                 if (border_width < 0)
7722                         border_width = 0;
7723                 break;
7724         case SWM_S_BOUNDARY_WIDTH:
7725                 boundary_width = atoi(value);
7726                 if (boundary_width < 0)
7727                         boundary_width = 0;
7728                 break;
7729         case SWM_S_CLOCK_ENABLED:
7730                 clock_enabled = atoi(value);
7731                 break;
7732         case SWM_S_CLOCK_FORMAT:
7733 #ifndef SWM_DENY_CLOCK_FORMAT
7734                 free(clock_format);
7735                 if ((clock_format = strdup(value)) == NULL)
7736                         err(1, "setconfvalue: clock_format");
7737 #endif
7738                 break;
7739         case SWM_S_CYCLE_EMPTY:
7740                 cycle_empty = atoi(value);
7741                 break;
7742         case SWM_S_CYCLE_VISIBLE:
7743                 cycle_visible = atoi(value);
7744                 break;
7745         case SWM_S_DIALOG_RATIO:
7746                 dialog_ratio = atof(value);
7747                 if (dialog_ratio > 1.0 || dialog_ratio <= .3)
7748                         dialog_ratio = .6;
7749                 break;
7750         case SWM_S_DISABLE_BORDER:
7751                 disable_border = atoi(value);
7752                 break;
7753         case SWM_S_FOCUS_CLOSE:
7754                 if (strcmp(value, "first") == 0)
7755                         focus_close = SWM_STACK_BOTTOM;
7756                 else if (strcmp(value, "last") == 0)
7757                         focus_close = SWM_STACK_TOP;
7758                 else if (strcmp(value, "next") == 0)
7759                         focus_close = SWM_STACK_ABOVE;
7760                 else if (strcmp(value, "previous") == 0)
7761                         focus_close = SWM_STACK_BELOW;
7762                 else
7763                         errx(1, "focus_close");
7764                 break;
7765         case SWM_S_FOCUS_CLOSE_WRAP:
7766                 focus_close_wrap = atoi(value);
7767                 break;
7768         case SWM_S_FOCUS_DEFAULT:
7769                 if (strcmp(value, "last") == 0)
7770                         focus_default = SWM_STACK_TOP;
7771                 else if (strcmp(value, "first") == 0)
7772                         focus_default = SWM_STACK_BOTTOM;
7773                 else
7774                         errx(1, "focus_default");
7775                 break;
7776         case SWM_S_FOCUS_MODE:
7777                 if (strcmp(value, "default") == 0)
7778                         focus_mode = SWM_FOCUS_DEFAULT;
7779                 else if (strcmp(value, "follow") == 0 ||
7780                     strcmp(value, "follow_cursor") == 0)
7781                         focus_mode = SWM_FOCUS_FOLLOW;
7782                 else if (strcmp(value, "manual") == 0)
7783                         focus_mode = SWM_FOCUS_MANUAL;
7784                 else
7785                         errx(1, "focus_mode");
7786                 break;
7787         case SWM_S_ICONIC_ENABLED:
7788                 iconic_enabled = atoi(value);
7789                 break;
7790         case SWM_S_REGION_PADDING:
7791                 region_padding = atoi(value);
7792                 if (region_padding < 0)
7793                         region_padding = 0;
7794                 break;
7795         case SWM_S_SPAWN_ORDER:
7796                 if (strcmp(value, "first") == 0)
7797                         spawn_position = SWM_STACK_BOTTOM;
7798                 else if (strcmp(value, "last") == 0)
7799                         spawn_position = SWM_STACK_TOP;
7800                 else if (strcmp(value, "next") == 0)
7801                         spawn_position = SWM_STACK_ABOVE;
7802                 else if (strcmp(value, "previous") == 0)
7803                         spawn_position = SWM_STACK_BELOW;
7804                 else
7805                         errx(1, "spawn_position");
7806                 break;
7807         case SWM_S_SPAWN_TERM:
7808                 setconfspawn("term", value, 0);
7809                 setconfspawn("spawn_term", value, 0);
7810                 break;
7811         case SWM_S_SS_APP:
7812                 /* No longer needed; leave to not break old conf files. */
7813                 break;
7814         case SWM_S_SS_ENABLED:
7815                 /* No longer needed; leave to not break old conf files. */
7816                 break;
7817         case SWM_S_STACK_ENABLED:
7818                 stack_enabled = atoi(value);
7819                 break;
7820         case SWM_S_TERM_WIDTH:
7821                 term_width = atoi(value);
7822                 if (term_width < 0)
7823                         term_width = 0;
7824                 break;
7825         case SWM_S_TILE_GAP:
7826                 tile_gap = atoi(value);
7827                 break;
7828         case SWM_S_URGENT_ENABLED:
7829                 urgent_enabled = atoi(value);
7830                 break;
7831         case SWM_S_VERBOSE_LAYOUT:
7832                 verbose_layout = atoi(value);
7833                 for (i = 0; layouts[i].l_stack != NULL; i++) {
7834                         if (verbose_layout)
7835                                 layouts[i].l_string = fancy_stacker;
7836                         else
7837                                 layouts[i].l_string = plain_stacker;
7838                 }
7839                 break;
7840         case SWM_S_WINDOW_CLASS_ENABLED:
7841                 window_class_enabled = atoi(value);
7842                 break;
7843         case SWM_S_WINDOW_INSTANCE_ENABLED:
7844                 window_instance_enabled = atoi(value);
7845                 break;
7846         case SWM_S_WINDOW_NAME_ENABLED:
7847                 window_name_enabled = atoi(value);
7848                 break;
7849         case SWM_S_WORKSPACE_LIMIT:
7850                 workspace_limit = atoi(value);
7851                 if (workspace_limit > SWM_WS_MAX)
7852                         workspace_limit = SWM_WS_MAX;
7853                 else if (workspace_limit < 1)
7854                         workspace_limit = 1;
7855
7856                 num_screens = get_screen_count();
7857                 for (i = 0; i < num_screens; i++) {
7858                         xcb_change_property(conn, XCB_PROP_MODE_REPLACE,
7859                             screens[i].root, ewmh[_NET_NUMBER_OF_DESKTOPS].atom,
7860                             XCB_ATOM_CARDINAL, 32, 1, &workspace_limit);
7861                 }
7862                 break;
7863         default:
7864                 return (1);
7865         }
7866         return (0);
7867 }
7868
7869 int
7870 setconfmodkey(const char *selector, const char *value, int flags)
7871 {
7872         /* suppress unused warnings since vars are needed */
7873         (void)selector;
7874         (void)flags;
7875
7876         if (strncasecmp(value, "Mod1", strlen("Mod1")) == 0)
7877                 update_modkey(XCB_MOD_MASK_1);
7878         else if (strncasecmp(value, "Mod2", strlen("Mod2")) == 0)
7879                 update_modkey(XCB_MOD_MASK_2);
7880         else if (strncasecmp(value, "Mod3", strlen("Mod3")) == 0)
7881                 update_modkey(XCB_MOD_MASK_3);
7882         else if (strncasecmp(value, "Mod4", strlen("Mod4")) == 0)
7883                 update_modkey(XCB_MOD_MASK_4);
7884         else
7885                 return (1);
7886         return (0);
7887 }
7888
7889 int
7890 setconfcolor(const char *selector, const char *value, int flags)
7891 {
7892         setscreencolor(value,
7893             (selector == NULL || strlen(selector) == 0) ? -1 : atoi(selector),
7894             flags);
7895         return (0);
7896 }
7897
7898 int
7899 setconfregion(const char *selector, const char *value, int flags)
7900 {
7901         /* suppress unused warnings since vars are needed */
7902         (void)selector;
7903         (void)flags;
7904
7905         custom_region(value);
7906         return (0);
7907 }
7908
7909 int
7910 setautorun(const char *selector, const char *value, int flags)
7911 {
7912         int                     ws_id;
7913         char                    s[1024];
7914         char                    *ap, *sp;
7915         union arg               a;
7916         int                     argc = 0;
7917         pid_t                   pid;
7918         struct pid_e            *p;
7919
7920         /* suppress unused warnings since vars are needed */
7921         (void)selector;
7922         (void)flags;
7923
7924         if (getenv("SWM_STARTED"))
7925                 return (0);
7926
7927         bzero(s, sizeof s);
7928         if (sscanf(value, "ws[%d]:%1023c", &ws_id, s) != 2)
7929                 errx(1, "invalid autorun entry, should be 'ws[<idx>]:command'");
7930         ws_id--;
7931         if (ws_id < 0 || ws_id >= workspace_limit)
7932                 errx(1, "autorun: invalid workspace %d", ws_id + 1);
7933
7934         sp = expand_tilde((char *)&s);
7935
7936         /*
7937          * This is a little intricate
7938          *
7939          * If the pid already exists we simply reuse it because it means it was
7940          * used before AND not claimed by manage_window.  We get away with
7941          * altering it in the parent after INSERT because this can not be a race
7942          */
7943         a.argv = NULL;
7944         while ((ap = strsep(&sp, " \t")) != NULL) {
7945                 if (*ap == '\0')
7946                         continue;
7947                 DNPRINTF(SWM_D_SPAWN, "setautorun: arg [%s]\n", ap);
7948                 argc++;
7949                 if ((a.argv = realloc(a.argv, argc * sizeof(char *))) == NULL)
7950                         err(1, "setautorun: realloc");
7951                 a.argv[argc - 1] = ap;
7952         }
7953         free(sp);
7954
7955         if ((a.argv = realloc(a.argv, (argc + 1) * sizeof(char *))) == NULL)
7956                 err(1, "setautorun: realloc");
7957         a.argv[argc] = NULL;
7958
7959         if ((pid = fork()) == 0) {
7960                 spawn(ws_id, &a, 1);
7961                 /* NOTREACHED */
7962                 _exit(1);
7963         }
7964         free(a.argv);
7965
7966         /* parent */
7967         p = find_pid(pid);
7968         if (p == NULL) {
7969                 p = calloc(1, sizeof *p);
7970                 if (p == NULL)
7971                         return (1);
7972                 TAILQ_INSERT_TAIL(&pidlist, p, entry);
7973         }
7974
7975         p->pid = pid;
7976         p->ws = ws_id;
7977
7978         return (0);
7979 }
7980
7981 int
7982 setlayout(const char *selector, const char *value, int flags)
7983 {
7984         int                     ws_id, i, x, mg, ma, si, ar, f = 0;
7985         int                     st = SWM_V_STACK, num_screens;
7986         char                    s[1024];
7987         struct workspace        *ws;
7988
7989         /* suppress unused warnings since vars are needed */
7990         (void)selector;
7991         (void)flags;
7992
7993         if (getenv("SWM_STARTED"))
7994                 return (0);
7995
7996         bzero(s, sizeof s);
7997         if (sscanf(value, "ws[%d]:%d:%d:%d:%d:%1023c",
7998             &ws_id, &mg, &ma, &si, &ar, s) != 6)
7999                 errx(1, "invalid layout entry, should be 'ws[<idx>]:"
8000                     "<master_grow>:<master_add>:<stack_inc>:<always_raise>:"
8001                     "<type>'");
8002         ws_id--;
8003         if (ws_id < 0 || ws_id >= workspace_limit)
8004                 errx(1, "layout: invalid workspace %d", ws_id + 1);
8005
8006         if (strcasecmp(s, "vertical") == 0)
8007                 st = SWM_V_STACK;
8008         else if (strcasecmp(s, "vertical_flip") == 0) {
8009                 st = SWM_V_STACK;
8010                 f = 1;
8011         } else if (strcasecmp(s, "horizontal") == 0)
8012                 st = SWM_H_STACK;
8013         else if (strcasecmp(s, "horizontal_flip") == 0) {
8014                 st = SWM_H_STACK;
8015                 f = 1;
8016         } else if (strcasecmp(s, "fullscreen") == 0)
8017                 st = SWM_MAX_STACK;
8018         else
8019                 errx(1, "invalid layout entry, should be 'ws[<idx>]:"
8020                     "<master_grow>:<master_add>:<stack_inc>:<always_raise>:"
8021                     "<type>'");
8022
8023         num_screens = get_screen_count();
8024         for (i = 0; i < num_screens; i++) {
8025                 ws = (struct workspace *)&screens[i].ws;
8026                 ws[ws_id].cur_layout = &layouts[st];
8027
8028                 ws[ws_id].always_raise = ar;
8029                 if (st == SWM_MAX_STACK)
8030                         continue;
8031
8032                 /* master grow */
8033                 for (x = 0; x < abs(mg); x++) {
8034                         ws[ws_id].cur_layout->l_config(&ws[ws_id],
8035                             mg >= 0 ?  SWM_ARG_ID_MASTERGROW :
8036                             SWM_ARG_ID_MASTERSHRINK);
8037                         stack();
8038                 }
8039                 /* master add */
8040                 for (x = 0; x < abs(ma); x++) {
8041                         ws[ws_id].cur_layout->l_config(&ws[ws_id],
8042                             ma >= 0 ?  SWM_ARG_ID_MASTERADD :
8043                             SWM_ARG_ID_MASTERDEL);
8044                         stack();
8045                 }
8046                 /* stack inc */
8047                 for (x = 0; x < abs(si); x++) {
8048                         ws[ws_id].cur_layout->l_config(&ws[ws_id],
8049                             si >= 0 ?  SWM_ARG_ID_STACKINC :
8050                             SWM_ARG_ID_STACKDEC);
8051                         stack();
8052                 }
8053                 /* Apply flip */
8054                 if (f) {
8055                         ws[ws_id].cur_layout->l_config(&ws[ws_id],
8056                             SWM_ARG_ID_FLIPLAYOUT);
8057                         stack();
8058                 }
8059         }
8060
8061         focus_flush();
8062
8063         return (0);
8064 }
8065
8066 /* config options */
8067 struct config_option {
8068         char                    *optname;
8069         int                     (*func)(const char*, const char*, int);
8070         int                     funcflags;
8071 };
8072 struct config_option configopt[] = {
8073         { "autorun",                    setautorun,     0 },
8074         { "bar_action",                 setconfvalue,   SWM_S_BAR_ACTION },
8075         { "bar_at_bottom",              setconfvalue,   SWM_S_BAR_AT_BOTTOM },
8076         { "bar_border",                 setconfcolor,   SWM_S_COLOR_BAR_BORDER },
8077         { "bar_border_unfocus",         setconfcolor,   SWM_S_COLOR_BAR_BORDER_UNFOCUS },
8078         { "bar_border_width",           setconfvalue,   SWM_S_BAR_BORDER_WIDTH },
8079         { "bar_color",                  setconfcolor,   SWM_S_COLOR_BAR },
8080         { "bar_delay",                  setconfvalue,   SWM_S_BAR_DELAY },
8081         { "bar_enabled",                setconfvalue,   SWM_S_BAR_ENABLED },
8082         { "bar_enabled_ws",             setconfvalue,   SWM_S_BAR_ENABLED_WS },
8083         { "bar_font",                   setconfvalue,   SWM_S_BAR_FONT },
8084         { "bar_font_color",             setconfcolor,   SWM_S_COLOR_BAR_FONT },
8085         { "bar_format",                 setconfvalue,   SWM_S_BAR_FORMAT },
8086         { "bar_justify",                setconfvalue,   SWM_S_BAR_JUSTIFY },
8087         { "bind",                       setconfbinding, 0 },
8088         { "border_width",               setconfvalue,   SWM_S_BORDER_WIDTH },
8089         { "boundary_width",             setconfvalue,   SWM_S_BOUNDARY_WIDTH },
8090         { "clock_enabled",              setconfvalue,   SWM_S_CLOCK_ENABLED },
8091         { "clock_format",               setconfvalue,   SWM_S_CLOCK_FORMAT },
8092         { "color_focus",                setconfcolor,   SWM_S_COLOR_FOCUS },
8093         { "color_unfocus",              setconfcolor,   SWM_S_COLOR_UNFOCUS },
8094         { "cycle_empty",                setconfvalue,   SWM_S_CYCLE_EMPTY },
8095         { "cycle_visible",              setconfvalue,   SWM_S_CYCLE_VISIBLE },
8096         { "dialog_ratio",               setconfvalue,   SWM_S_DIALOG_RATIO },
8097         { "disable_border",             setconfvalue,   SWM_S_DISABLE_BORDER },
8098         { "focus_close",                setconfvalue,   SWM_S_FOCUS_CLOSE },
8099         { "focus_close_wrap",           setconfvalue,   SWM_S_FOCUS_CLOSE_WRAP },
8100         { "focus_default",              setconfvalue,   SWM_S_FOCUS_DEFAULT },
8101         { "focus_mode",                 setconfvalue,   SWM_S_FOCUS_MODE },
8102         { "iconic_enabled",             setconfvalue,   SWM_S_ICONIC_ENABLED },
8103         { "keyboard_mapping",           setkeymapping,  0 },
8104         { "layout",                     setlayout,      0 },
8105         { "modkey",                     setconfmodkey,  0 },
8106         { "program",                    setconfspawn,   0 },
8107         { "quirk",                      setconfquirk,   0 },
8108         { "region",                     setconfregion,  0 },
8109         { "region_padding",             setconfvalue,   SWM_S_REGION_PADDING },
8110         { "screenshot_app",             setconfvalue,   SWM_S_SS_APP },
8111         { "screenshot_enabled",         setconfvalue,   SWM_S_SS_ENABLED },
8112         { "spawn_position",             setconfvalue,   SWM_S_SPAWN_ORDER },
8113         { "spawn_term",                 setconfvalue,   SWM_S_SPAWN_TERM },
8114         { "stack_enabled",              setconfvalue,   SWM_S_STACK_ENABLED },
8115         { "term_width",                 setconfvalue,   SWM_S_TERM_WIDTH },
8116         { "tile_gap",                   setconfvalue,   SWM_S_TILE_GAP },
8117         { "title_class_enabled",        setconfvalue,   SWM_S_WINDOW_CLASS_ENABLED }, /* For backwards compat. */
8118         { "title_name_enabled",         setconfvalue,   SWM_S_WINDOW_INSTANCE_ENABLED }, /* For backwards compat. */
8119         { "urgent_enabled",             setconfvalue,   SWM_S_URGENT_ENABLED },
8120         { "verbose_layout",             setconfvalue,   SWM_S_VERBOSE_LAYOUT },
8121         { "window_class_enabled",       setconfvalue,   SWM_S_WINDOW_CLASS_ENABLED },
8122         { "window_instance_enabled",    setconfvalue,   SWM_S_WINDOW_INSTANCE_ENABLED },
8123         { "window_name_enabled",        setconfvalue,   SWM_S_WINDOW_NAME_ENABLED },
8124         { "workspace_limit",            setconfvalue,   SWM_S_WORKSPACE_LIMIT },
8125 };
8126
8127 void
8128 _add_startup_exception(const char *fmt, va_list ap)
8129 {
8130         if (vasprintf(&startup_exception, fmt, ap) == -1)
8131                 warn("%s: asprintf", __func__);
8132 }
8133
8134 void
8135 add_startup_exception(const char *fmt, ...)
8136 {
8137         va_list ap;
8138
8139         nr_exceptions++;
8140
8141         if (startup_exception)
8142                 return;
8143
8144         /* force bar to be enabled due to exception */
8145         bar_enabled = 1;
8146
8147         va_start(ap, fmt);
8148         _add_startup_exception(fmt, ap);
8149         va_end(ap);
8150 }
8151
8152 int
8153 conf_load(const char *filename, int keymapping)
8154 {
8155         FILE                    *config;
8156         char                    *line = NULL, *cp, *ce, *optsub, *optval = NULL;
8157         size_t                  linelen, lineno = 0;
8158         int                     wordlen, i, optidx, count;
8159         struct config_option    *opt = NULL;
8160
8161         DNPRINTF(SWM_D_CONF, "conf_load: begin\n");
8162
8163         if (filename == NULL) {
8164                 warnx("conf_load: no filename");
8165                 return (1);
8166         }
8167
8168         DNPRINTF(SWM_D_CONF, "conf_load: open %s\n", filename);
8169
8170         if ((config = fopen(filename, "r")) == NULL) {
8171                 warn("conf_load: fopen: %s", filename);
8172                 return (1);
8173         }
8174
8175         while (!feof(config)) {
8176                 if (line)
8177                         free(line);
8178
8179                 if ((line = fparseln(config, &linelen, &lineno, NULL,
8180                     FPARSELN_UNESCCOMM | FPARSELN_UNESCCONT)) == NULL) {
8181                         if (ferror(config))
8182                                 err(1, "%s", filename);
8183                         else
8184                                 continue;
8185                 }
8186                 cp = line;
8187                 cp += strspn(cp, " \t\n"); /* eat whitespace */
8188                 if (cp[0] == '\0') {
8189                         /* empty line */
8190                         continue;
8191                 }
8192                 /* get config option */
8193                 wordlen = strcspn(cp, "=[ \t\n");
8194                 if (wordlen == 0) {
8195                         add_startup_exception("%s: line %zd: no option found",
8196                             filename, lineno);
8197                         continue;
8198                 }
8199                 optidx = -1;
8200                 for (i = 0; i < LENGTH(configopt); i++) {
8201                         opt = &configopt[i];
8202                         if (strncasecmp(cp, opt->optname, wordlen) == 0 &&
8203                             (int)strlen(opt->optname) == wordlen) {
8204                                 optidx = i;
8205                                 break;
8206                         }
8207                 }
8208                 if (optidx == -1) {
8209                         add_startup_exception("%s: line %zd: unknown option "
8210                             "%.*s", filename, lineno, wordlen, cp);
8211                         continue;
8212                 }
8213                 if (keymapping && opt && strcmp(opt->optname, "bind")) {
8214                         add_startup_exception("%s: line %zd: invalid option "
8215                             "%.*s", filename, lineno, wordlen, cp);
8216                         continue;
8217                 }
8218                 cp += wordlen;
8219                 cp += strspn(cp, " \t\n"); /* eat whitespace */
8220
8221                 /* get [selector] if any */
8222                 optsub = NULL;
8223                 count = 0;
8224                 if (*cp == '[') {
8225                         ++count;
8226                         /* Get length of selector. */
8227                         for (ce = ++cp; *ce != '\0'; ++ce) {
8228                                 /* Find matching (not escaped) bracket. */
8229                                 if (*ce == ']' && *(ce - 1) != '\\') {
8230                                         --count;
8231                                         break;
8232                                 }
8233                         }
8234
8235                         if (count > 0) {
8236                                 add_startup_exception("%s: line %zd: syntax "
8237                                     "error: unterminated selector", filename,
8238                                     lineno);
8239                                 continue;
8240                         }
8241
8242                         /* ce points at ']'; terminate optsub. */
8243                         *ce = '\0';
8244                         optsub = cp;
8245                         cp = ce + 1;
8246                 }
8247                 cp += strspn(cp, "= \t\n"); /* eat trailing */
8248                 /* get RHS value */
8249                 optval = cp;
8250                 if (strlen(optval) == 0) {
8251                         add_startup_exception("%s: line %zd: must supply value "
8252                             "to %s", filename, lineno,
8253                             configopt[optidx].optname);
8254                         continue;
8255                 }
8256                 /* call function to deal with it all */
8257                 if (configopt[optidx].func(optsub, optval,
8258                     configopt[optidx].funcflags) != 0) {
8259                         add_startup_exception("%s: line %zd: invalid data for "
8260                             "%s", filename, lineno, configopt[optidx].optname);
8261                         continue;
8262                 }
8263         }
8264
8265         if (line)
8266                 free(line);
8267         fclose(config);
8268         DNPRINTF(SWM_D_CONF, "conf_load: end\n");
8269
8270         return (0);
8271 }
8272
8273 void
8274 set_child_transient(struct ws_win *win, xcb_window_t *trans)
8275 {
8276         struct ws_win           *parent, *w;
8277         struct swm_region       *r;
8278         struct workspace        *ws;
8279         xcb_icccm_wm_hints_t    wmh;
8280
8281         parent = find_window(win->transient);
8282         if (parent)
8283                 parent->focus_child = win;
8284         else {
8285                 DNPRINTF(SWM_D_MISC, "set_child_transient: parent doesn't exist"
8286                     " for %#x trans %#x\n", win->id, win->transient);
8287
8288                 r = root_to_region(win->s->root, SWM_CK_ALL);
8289                 ws = r->ws;
8290                 /* parent doen't exist in our window list */
8291                 TAILQ_FOREACH(w, &ws->winlist, entry) {
8292                         if (xcb_icccm_get_wm_hints_reply(conn,
8293                             xcb_icccm_get_wm_hints(conn, w->id),
8294                             &wmh, NULL) != 1) {
8295                                 warnx("can't get hints for %#x", w->id);
8296                                 continue;
8297                         }
8298
8299                         if (win->hints.window_group != wmh.window_group)
8300                                 continue;
8301
8302                         w->focus_child = win;
8303                         win->transient = w->id;
8304                         *trans = w->id;
8305                         DNPRINTF(SWM_D_MISC, "set_child_transient: adjusting "
8306                             "transient to %#x\n", win->transient);
8307                         break;
8308                 }
8309         }
8310 }
8311
8312 pid_t
8313 window_get_pid(xcb_window_t win)
8314 {
8315         pid_t                           ret = 0;
8316         const char                      *errstr;
8317         xcb_atom_t                      apid;
8318         xcb_get_property_cookie_t       pc;
8319         xcb_get_property_reply_t        *pr;
8320
8321         apid = get_atom_from_string("_NET_WM_PID");
8322         if (apid == XCB_ATOM_NONE)
8323                 goto tryharder;
8324
8325         pc = xcb_get_property(conn, 0, win, apid, XCB_ATOM_CARDINAL, 0, 1);
8326         pr = xcb_get_property_reply(conn, pc, NULL);
8327         if (pr == NULL)
8328                 goto tryharder;
8329         if (pr->type != XCB_ATOM_CARDINAL) {
8330                 free(pr);
8331                 goto tryharder;
8332         }
8333
8334         if (pr->type == apid && pr->format == 32)
8335                 ret = *((pid_t *)xcb_get_property_value(pr));
8336         free(pr);
8337
8338         return (ret);
8339
8340 tryharder:
8341         apid = get_atom_from_string("_SWM_PID");
8342         pc = xcb_get_property(conn, 0, win, apid, XCB_ATOM_STRING,
8343             0, SWM_PROPLEN);
8344         pr = xcb_get_property_reply(conn, pc, NULL);
8345         if (pr == NULL)
8346                 return (0);
8347         if (pr->type != apid) {
8348                 free(pr);
8349                 return (0);
8350         }
8351
8352         ret = (pid_t)strtonum(xcb_get_property_value(pr), 0, INT_MAX, &errstr);
8353         free(pr);
8354
8355         return (ret);
8356 }
8357
8358 int
8359 get_swm_ws(xcb_window_t id)
8360 {
8361         int                     ws_idx = -1;
8362         char                    *prop = NULL;
8363         size_t                  proplen;
8364         const char              *errstr;
8365         xcb_get_property_reply_t        *gpr;
8366
8367         gpr = xcb_get_property_reply(conn,
8368                 xcb_get_property(conn, 0, id, a_swm_ws,
8369                     XCB_ATOM_STRING, 0, SWM_PROPLEN),
8370                 NULL);
8371         if (gpr == NULL)
8372                 return (-1);
8373         if (gpr->type) {
8374                 proplen = xcb_get_property_value_length(gpr);
8375                 if (proplen > 0) {
8376                         prop = malloc(proplen + 1);
8377                         if (prop) {
8378                                 memcpy(prop,
8379                                     xcb_get_property_value(gpr),
8380                                     proplen);
8381                                 prop[proplen] = '\0';
8382                         }
8383                 }
8384         }
8385         free(gpr);
8386
8387         if (prop) {
8388                 DNPRINTF(SWM_D_PROP, "get_swm_ws: _SWM_WS: %s\n", prop);
8389                 ws_idx = (int)strtonum(prop, 0, workspace_limit - 1, &errstr);
8390                 if (errstr) {
8391                         DNPRINTF(SWM_D_PROP, "get_swm_ws: win #%s: %s",
8392                             errstr, prop);
8393                 }
8394                 free(prop);
8395         }
8396
8397         return ws_idx;
8398 }
8399
8400 int
8401 get_ws_idx(xcb_window_t id)
8402 {
8403         xcb_get_property_reply_t        *gpr;
8404         int                     ws_idx = -1;
8405
8406         gpr = xcb_get_property_reply(conn,
8407                 xcb_get_property(conn, 0, id, ewmh[_NET_WM_DESKTOP].atom,
8408                     XCB_ATOM_CARDINAL, 0, 1),
8409                 NULL);
8410         if (gpr) {
8411                 if (gpr->type == XCB_ATOM_CARDINAL && gpr->format == 32)
8412                         ws_idx = *((int *)xcb_get_property_value(gpr));
8413                 free(gpr);
8414         }
8415
8416         if (ws_idx == -1)
8417                 if ((ws_idx = get_swm_ws(id)) != -1)
8418                         xcb_delete_property(conn, id, a_swm_ws);
8419
8420         if (ws_idx > workspace_limit - 1 || ws_idx < -1)
8421                 ws_idx = -1;
8422
8423         DNPRINTF(SWM_D_PROP, "get_ws_idx: win %#x, ws_idx: %d\n", id, ws_idx);
8424
8425         return ws_idx;
8426 }
8427
8428 struct ws_win *
8429 manage_window(xcb_window_t id, uint16_t mapped)
8430 {
8431         xcb_window_t            trans = XCB_WINDOW_NONE;
8432         struct ws_win           *win, *ww;
8433         int                     ws_idx;
8434         char                    *class, *instance, *name;
8435         struct swm_region       *r;
8436         struct pid_e            *p;
8437         struct quirk            *qp;
8438         uint32_t                i, wa[2], new_flags;
8439         xcb_get_geometry_reply_t        *gr;
8440
8441         if ((win = find_window(id)) != NULL) {
8442                 DNPRINTF(SWM_D_MISC, "manage_window: win %#x already "
8443                     "managed; skipping.)\n", id);
8444                 return (win);   /* Already managed. */
8445         }
8446
8447         /* See if window is on the unmanaged list. */
8448         if ((win = find_unmanaged_window(id)) != NULL) {
8449                 DNPRINTF(SWM_D_MISC, "manage_window: win %#x found on "
8450                     "unmanaged list.\n", id);
8451                 TAILQ_REMOVE(&win->ws->unmanagedlist, win, entry);
8452
8453                 if (TRANS(win))
8454                         set_child_transient(win, &trans);
8455
8456                 goto out;
8457         } else {
8458                 DNPRINTF(SWM_D_MISC, "manage_window: win %#x is new.\n", id);
8459         }
8460
8461         /* Try to get initial window geometry. */
8462         gr = xcb_get_geometry_reply(conn, xcb_get_geometry(conn, id), NULL);
8463         if (gr == NULL) {
8464                 DNPRINTF(SWM_D_MISC, "manage_window: get geometry failed.\n");
8465                 return (NULL);
8466         }
8467
8468         /* Create and initialize ws_win object. */
8469         if ((win = calloc(1, sizeof(struct ws_win))) == NULL)
8470                 err(1, "manage_window: calloc: failed to allocate memory for "
8471                     "new window");
8472
8473         win->id = id;
8474
8475         /* Figureout which region the window belongs to. */
8476         r = root_to_region(gr->root, SWM_CK_ALL);
8477
8478         /* Ignore window border if there is one. */
8479         WIDTH(win) = gr->width;
8480         HEIGHT(win) = gr->height;
8481         X(win) = gr->x + gr->border_width - border_width;
8482         Y(win) = gr->y + gr->border_width - border_width;
8483         win->bordered = 1;
8484         win->mapped = mapped;
8485         win->s = r->s;  /* this never changes */
8486
8487         free(gr);
8488
8489         /* Select which X events to monitor and set border pixel color. */
8490         wa[0] = win->s->c[SWM_S_COLOR_UNFOCUS].pixel;
8491         wa[1] = XCB_EVENT_MASK_ENTER_WINDOW | XCB_EVENT_MASK_PROPERTY_CHANGE |
8492             XCB_EVENT_MASK_STRUCTURE_NOTIFY;
8493 #ifdef SWM_DEBUG
8494         wa[1] |= XCB_EVENT_MASK_LEAVE_WINDOW | XCB_EVENT_MASK_FOCUS_CHANGE;
8495 #endif
8496
8497         xcb_change_window_attributes(conn, win->id, XCB_CW_BORDER_PIXEL |
8498             XCB_CW_EVENT_MASK, wa);
8499
8500         /* Get WM_SIZE_HINTS. */
8501         xcb_icccm_get_wm_normal_hints_reply(conn,
8502             xcb_icccm_get_wm_normal_hints(conn, win->id),
8503             &win->sh, NULL);
8504
8505         /* Get WM_HINTS. */
8506         xcb_icccm_get_wm_hints_reply(conn,
8507             xcb_icccm_get_wm_hints(conn, win->id),
8508             &win->hints, NULL);
8509
8510         /* Get WM_TRANSIENT_FOR; see if window is a transient. */
8511         xcb_icccm_get_wm_transient_for_reply(conn,
8512             xcb_icccm_get_wm_transient_for(conn, win->id),
8513             &trans, NULL);
8514         if (trans) {
8515                 win->transient = trans;
8516                 set_child_transient(win, &win->transient);
8517         }
8518
8519         /* Get WM_PROTOCOLS. */
8520         get_wm_protocols(win);
8521
8522         /* Figure out which workspace the window belongs to. */
8523         if ((p = find_pid(window_get_pid(win->id))) != NULL) {
8524                 win->ws = &r->s->ws[p->ws];
8525                 TAILQ_REMOVE(&pidlist, p, entry);
8526                 free(p);
8527                 p = NULL;
8528         } else if ((ws_idx = get_ws_idx(win->id)) != -1 &&
8529             !TRANS(win)) {
8530                 /* _SWM_WS is set; use that. */
8531                 win->ws = &r->s->ws[ws_idx];
8532         } else if (trans && (ww = find_window(trans)) != NULL) {
8533                 /* Launch transients in the same ws as parent. */
8534                 win->ws = ww->ws;
8535         } else {
8536                 win->ws = r->ws;
8537         }
8538
8539         /* Set the _NET_WM_DESKTOP atom. */
8540         DNPRINTF(SWM_D_PROP, "manage_window: set _NET_WM_DESKTOP: %d\n",
8541             win->ws->idx);
8542         xcb_change_property(conn, XCB_PROP_MODE_REPLACE, win->id,
8543             ewmh[_NET_WM_DESKTOP].atom, XCB_ATOM_CARDINAL, 32, 1, &win->ws->idx);
8544
8545         /* WS must already be set for this to work. */
8546         store_float_geom(win);
8547
8548         /* Set initial quirks based on EWMH. */
8549         ewmh_autoquirk(win);
8550
8551         /* Determine initial quirks. */
8552         xcb_icccm_get_wm_class_reply(conn,
8553             xcb_icccm_get_wm_class(conn, win->id),
8554             &win->ch, NULL);
8555
8556         class = win->ch.class_name ? win->ch.class_name : "";
8557         instance = win->ch.instance_name ? win->ch.instance_name : "";
8558         name = get_win_name(win->id);
8559
8560         DNPRINTF(SWM_D_CLASS, "manage_window: class: %s, instance: %s, "
8561             "name: %s\n", class, instance, name);
8562
8563         /* java is retarded so treat it special */
8564         if (strstr(instance, "sun-awt")) {
8565                 DNPRINTF(SWM_D_CLASS, "manage_window: java window detected.\n");
8566                 win->java = 1;
8567         }
8568
8569         TAILQ_FOREACH(qp, &quirks, entry) {
8570                 if (regexec(&qp->regex_class, class, 0, NULL, 0) == 0 &&
8571                     regexec(&qp->regex_instance, instance, 0, NULL, 0) == 0 &&
8572                     regexec(&qp->regex_name, name, 0, NULL, 0) == 0) {
8573                         DNPRINTF(SWM_D_CLASS, "manage_window: matched "
8574                             "quirk: %s:%s:%s mask: %#lx\n", qp->class,
8575                             qp->instance, qp->name, qp->quirk);
8576                         win->quirks = qp->quirk;
8577                 }
8578         }
8579
8580         free(name);
8581
8582         /* Reset font sizes (the bruteforce way; no default keybinding). */
8583         if (win->quirks & SWM_Q_XTERM_FONTADJ) {
8584                 for (i = 0; i < SWM_MAX_FONT_STEPS; i++)
8585                         fake_keypress(win, XK_KP_Subtract, XCB_MOD_MASK_SHIFT);
8586                 for (i = 0; i < SWM_MAX_FONT_STEPS; i++)
8587                         fake_keypress(win, XK_KP_Add, XCB_MOD_MASK_SHIFT);
8588         }
8589
8590         /* Make sure window is positioned inside its region, if its active. */
8591         if (win->ws->r) {
8592                 region_containment(win, r, SWM_CW_ALLSIDES |
8593                     SWM_CW_HARDBOUNDARY);
8594                 update_window(win);
8595         }
8596
8597 out:
8598         /* Figure out where to stack the window in the workspace. */
8599         if (trans && (ww = find_window(trans)))
8600                 TAILQ_INSERT_AFTER(&win->ws->winlist, ww, win, entry);
8601         else if (win->ws->focus && spawn_position == SWM_STACK_ABOVE)
8602                 TAILQ_INSERT_AFTER(&win->ws->winlist, win->ws->focus, win,
8603                     entry);
8604         else if (win->ws->focus && spawn_position == SWM_STACK_BELOW)
8605                 TAILQ_INSERT_BEFORE(win->ws->focus, win, entry);
8606         else switch (spawn_position) {
8607         default:
8608         case SWM_STACK_TOP:
8609         case SWM_STACK_ABOVE:
8610                 TAILQ_INSERT_TAIL(&win->ws->winlist, win, entry);
8611                 break;
8612         case SWM_STACK_BOTTOM:
8613         case SWM_STACK_BELOW:
8614                 TAILQ_INSERT_HEAD(&win->ws->winlist, win, entry);
8615         }
8616
8617         ewmh_update_client_list();
8618
8619         TAILQ_INSERT_TAIL(&win->ws->stack, win, stack_entry);
8620
8621         /* Get/apply initial _NET_WM_STATE */
8622         ewmh_get_wm_state(win);
8623
8624         /* Apply quirks. */
8625         new_flags = win->ewmh_flags;
8626
8627         if (win->quirks & SWM_Q_FLOAT)
8628                 new_flags |= EWMH_F_ABOVE;
8629
8630         if (win->quirks & SWM_Q_ANYWHERE)
8631                 new_flags |= SWM_F_MANUAL;
8632
8633         ewmh_apply_flags(win, new_flags);
8634         ewmh_update_wm_state(win);
8635
8636         /* Set initial _NET_WM_ALLOWED_ACTIONS */
8637         ewmh_update_actions(win);
8638
8639         grabbuttons(win);
8640
8641         DNPRINTF(SWM_D_MISC, "manage_window: done. win %#x, (x,y) w x h: "
8642             "(%d,%d) %d x %d, ws: %d, iconic: %s, transient: %#x\n", win->id,
8643             X(win), Y(win), WIDTH(win), HEIGHT(win), win->ws->idx,
8644             YESNO(ICONIC(win)), win->transient);
8645
8646         return (win);
8647 }
8648
8649 void
8650 free_window(struct ws_win *win)
8651 {
8652         DNPRINTF(SWM_D_MISC, "free_window: win %#x\n", win->id);
8653
8654         if (win == NULL)
8655                 return;
8656
8657         TAILQ_REMOVE(&win->ws->unmanagedlist, win, entry);
8658
8659         xcb_icccm_get_wm_class_reply_wipe(&win->ch);
8660
8661         kill_refs(win);
8662
8663         /* paint memory */
8664         memset(win, 0xff, sizeof *win); /* XXX kill later */
8665
8666         free(win);
8667         DNPRINTF(SWM_D_MISC, "free_window: done.\n");
8668 }
8669
8670 void
8671 unmanage_window(struct ws_win *win)
8672 {
8673         struct ws_win           *parent;
8674
8675         if (win == NULL)
8676                 return;
8677
8678         DNPRINTF(SWM_D_MISC, "unmanage_window: win %#x\n", win->id);
8679
8680         if (TRANS(win)) {
8681                 parent = find_window(win->transient);
8682                 if (parent)
8683                         parent->focus_child = NULL;
8684         }
8685
8686         TAILQ_REMOVE(&win->ws->stack, win, stack_entry);
8687         TAILQ_REMOVE(&win->ws->winlist, win, entry);
8688         TAILQ_INSERT_TAIL(&win->ws->unmanagedlist, win, entry);
8689
8690         ewmh_update_client_list();
8691 }
8692
8693 void
8694 expose(xcb_expose_event_t *e)
8695 {
8696         int                     i, num_screens;
8697         struct swm_region       *r;
8698
8699         DNPRINTF(SWM_D_EVENT, "expose: win %#x\n", e->window);
8700
8701         num_screens = get_screen_count();
8702         for (i = 0; i < num_screens; i++)
8703                 TAILQ_FOREACH(r, &screens[i].rl, entry)
8704                         if (e->window == WINID(r->bar))
8705                                 bar_draw();
8706
8707         xcb_flush(conn);
8708 }
8709
8710 #ifdef SWM_DEBUG
8711 void
8712 focusin(xcb_focus_in_event_t *e)
8713 {
8714         DNPRINTF(SWM_D_EVENT, "focusin: win %#x, mode: %s(%u), "
8715             "detail: %s(%u)\n", e->event, get_notify_mode_label(e->mode),
8716             e->mode, get_notify_detail_label(e->detail), e->detail);
8717 }
8718
8719 void
8720 focusout(xcb_focus_out_event_t *e)
8721 {
8722         DNPRINTF(SWM_D_EVENT, "focusout: win %#x, mode: %s(%u), "
8723             "detail: %s(%u)\n", e->event, get_notify_mode_label(e->mode),
8724             e->mode, get_notify_detail_label(e->detail), e->detail);
8725 }
8726 #endif
8727
8728 void
8729 keypress(xcb_key_press_event_t *e)
8730 {
8731         xcb_keysym_t            keysym;
8732         struct key              *kp;
8733
8734         keysym = xcb_key_press_lookup_keysym(syms, e, 0);
8735
8736         DNPRINTF(SWM_D_EVENT, "keypress: keysym: %u, win (x,y): %#x (%d,%d), "
8737             "detail: %u, time: %u, root (x,y): %#x (%d,%d), child: %#x, "
8738             "state: %u, same_screen: %s\n", keysym, e->event, e->event_x,
8739             e->event_y, e->detail, e->time, e->root, e->root_x, e->root_y,
8740             e->child, e->state, YESNO(e->same_screen));
8741
8742         if ((kp = key_lookup(CLEANMASK(e->state), keysym)) == NULL)
8743                 goto out;
8744
8745         last_event_time = e->time;
8746
8747         if (kp->funcid == KF_SPAWN_CUSTOM)
8748                 spawn_custom(root_to_region(e->root, SWM_CK_ALL),
8749                     &(keyfuncs[kp->funcid].args), kp->spawn_name);
8750         else if (keyfuncs[kp->funcid].func)
8751                 keyfuncs[kp->funcid].func(root_to_region(e->root, SWM_CK_ALL),
8752                     &(keyfuncs[kp->funcid].args));
8753
8754 out:
8755         /* Unfreeze grab events. */
8756         xcb_allow_events(conn, XCB_ALLOW_ASYNC_KEYBOARD, e->time);
8757         xcb_flush(conn);
8758
8759         DNPRINTF(SWM_D_EVENT, "keypress: done.\n");
8760 }
8761
8762 void
8763 buttonpress(xcb_button_press_event_t *e)
8764 {
8765         struct ws_win           *win = NULL;
8766         struct swm_region       *r, *old_r;
8767         int                     i;
8768         int                     handled = 0;
8769
8770         DNPRINTF(SWM_D_EVENT, "buttonpress: win (x,y): %#x (%d,%d), "
8771             "detail: %u, time: %u, root (x,y): %#x (%d,%d), child: %#x, "
8772             "state: %u, same_screen: %s\n", e->event, e->event_x, e->event_y,
8773             e->detail, e->time, e->root, e->root_x, e->root_y, e->child,
8774             e->state, YESNO(e->same_screen));
8775
8776         if (e->event == e->root) {
8777                 if (e->child != 0) {
8778                         win = find_window(e->child);
8779                         /* Pass ButtonPress to window if it isn't managed. */
8780                         if (win == NULL)
8781                                 goto out;
8782                 } else {
8783                         /* Focus on empty region */
8784                         /* If no windows on region if its empty. */
8785                         r = root_to_region(e->root, SWM_CK_POINTER);
8786                         if (r == NULL) {
8787                                 DNPRINTF(SWM_D_EVENT, "buttonpress: "
8788                                     "NULL region; ignoring.\n");
8789                                 goto out;
8790                         }
8791
8792                         if (TAILQ_EMPTY(&r->ws->winlist)) {
8793                                 old_r = root_to_region(e->root, SWM_CK_FOCUS);
8794                                 if (old_r && old_r != r)
8795                                         unfocus_win(old_r->ws->focus);
8796
8797                                 xcb_set_input_focus(conn,
8798                                     XCB_INPUT_FOCUS_PARENT, e->root, e->time);
8799
8800                                 /* Clear bar since empty. */
8801                                 bar_draw();
8802
8803                                 handled = 1;
8804                                 goto out;
8805                         }
8806                 }
8807         } else {
8808                 win = find_window(e->event);
8809         }
8810
8811         if (win == NULL)
8812                 goto out;
8813
8814         last_event_time = e->time;
8815
8816         focus_win(get_focus_magic(win));
8817
8818         for (i = 0; i < LENGTH(buttons); i++)
8819                 if (client_click == buttons[i].action && buttons[i].func &&
8820                     buttons[i].button == e->detail &&
8821                     CLEANMASK(buttons[i].mask) == CLEANMASK(e->state)) {
8822                         buttons[i].func(win, &buttons[i].args);
8823                         handled = 1;
8824                 }
8825
8826 out:
8827         if (!handled) {
8828                 DNPRINTF(SWM_D_EVENT, "buttonpress: passing to window.\n");
8829                 /* Replay event to event window */
8830                 xcb_allow_events(conn, XCB_ALLOW_REPLAY_POINTER, e->time);
8831         } else {
8832                 DNPRINTF(SWM_D_EVENT, "buttonpress: handled.\n");
8833                 /* Unfreeze grab events. */
8834                 xcb_allow_events(conn, XCB_ALLOW_SYNC_POINTER, e->time);
8835         }
8836
8837         xcb_flush(conn);
8838 }
8839
8840 #ifdef SWM_DEBUG
8841 void
8842 print_win_geom(xcb_window_t w)
8843 {
8844         xcb_get_geometry_reply_t        *wa;
8845
8846         wa = xcb_get_geometry_reply(conn, xcb_get_geometry(conn, w), NULL);
8847         if (wa == NULL) {
8848                 DNPRINTF(SWM_D_MISC, "print_win_geom: window not found: %#x\n",
8849                     w);
8850                 return;
8851         }
8852
8853         DNPRINTF(SWM_D_MISC, "print_win_geom: win %#x, root: %#x, "
8854             "depth: %u, (x,y) w x h: (%d,%d) %d x %d, border: %d\n",
8855             w, wa->root, wa->depth, wa->x,  wa->y, wa->width, wa->height,
8856             wa->border_width);
8857
8858         free(wa);
8859 }
8860 #endif
8861
8862 #ifdef SWM_DEBUG
8863 char *
8864 get_stack_mode_name(uint8_t mode)
8865 {
8866         char    *name;
8867
8868         switch(mode) {
8869         case XCB_STACK_MODE_ABOVE:
8870                 name = "Above";
8871                 break;
8872         case XCB_STACK_MODE_BELOW:
8873                 name = "Below";
8874                 break;
8875         case XCB_STACK_MODE_TOP_IF:
8876                 name = "TopIf";
8877                 break;
8878         case XCB_STACK_MODE_BOTTOM_IF:
8879                 name = "BottomIf";
8880                 break;
8881         case XCB_STACK_MODE_OPPOSITE:
8882                 name = "Opposite";
8883                 break;
8884         default:
8885                 name = "Unknown";
8886         }
8887
8888         return name;
8889 }
8890 #endif
8891
8892 void
8893 configurerequest(xcb_configure_request_event_t *e)
8894 {
8895         struct ws_win           *win;
8896         struct swm_region       *r = NULL;
8897         int                     new = 0, i = 0;
8898         uint16_t                mask = 0;
8899         uint32_t                wc[7] = {0};
8900
8901         if ((win = find_window(e->window)) == NULL)
8902                 if ((win = find_unmanaged_window(e->window)) == NULL)
8903                         new = 1;
8904
8905 #ifdef SWM_DEBUG
8906         if (swm_debug & SWM_D_EVENT) {
8907                 print_win_geom(e->window);
8908
8909                 DNPRINTF(SWM_D_EVENT, "configurerequest: win %#x, "
8910                     "parent: %#x, new: %s, value_mask: %u { ", e->window,
8911                     e->parent, YESNO(new), e->value_mask);
8912                 if (e->value_mask & XCB_CONFIG_WINDOW_X)
8913                         DPRINTF("X: %d ", e->x);
8914                 if (e->value_mask & XCB_CONFIG_WINDOW_Y)
8915                         DPRINTF("Y: %d ", e->y);
8916                 if (e->value_mask & XCB_CONFIG_WINDOW_WIDTH)
8917                         DPRINTF("W: %u ", e->width);
8918                 if (e->value_mask & XCB_CONFIG_WINDOW_HEIGHT)
8919                         DPRINTF("H: %u ", e->height);
8920                 if (e->value_mask & XCB_CONFIG_WINDOW_BORDER_WIDTH)
8921                         DPRINTF("Border: %u ", e->border_width);
8922                 if (e->value_mask & XCB_CONFIG_WINDOW_SIBLING)
8923                         DPRINTF("Sibling: %#x ", e->sibling);
8924                 if (e->value_mask & XCB_CONFIG_WINDOW_STACK_MODE)
8925                         DPRINTF("StackMode: %s(%u) ",
8926                             get_stack_mode_name(e->stack_mode), e->stack_mode);
8927                 DPRINTF("}\n");
8928         }
8929 #endif
8930
8931         if (new) {
8932                 if (e->value_mask & XCB_CONFIG_WINDOW_X) {
8933                         mask |= XCB_CONFIG_WINDOW_X;
8934                         wc[i++] = e->x;
8935                 }
8936                 if (e->value_mask & XCB_CONFIG_WINDOW_Y) {
8937                         mask |= XCB_CONFIG_WINDOW_Y;
8938                         wc[i++] = e->y;
8939                 }
8940                 if (e->value_mask & XCB_CONFIG_WINDOW_WIDTH) {
8941                         mask |= XCB_CONFIG_WINDOW_WIDTH;
8942                         wc[i++] = e->width;
8943                 }
8944                 if (e->value_mask & XCB_CONFIG_WINDOW_HEIGHT) {
8945                         mask |= XCB_CONFIG_WINDOW_HEIGHT;
8946                         wc[i++] = e->height;
8947                 }
8948                 if (e->value_mask & XCB_CONFIG_WINDOW_BORDER_WIDTH) {
8949                         mask |= XCB_CONFIG_WINDOW_BORDER_WIDTH;
8950                         wc[i++] = e->border_width;
8951                 }
8952                 if (e->value_mask & XCB_CONFIG_WINDOW_SIBLING) {
8953                         mask |= XCB_CONFIG_WINDOW_SIBLING;
8954                         wc[i++] = e->sibling;
8955                 }
8956                 if (e->value_mask & XCB_CONFIG_WINDOW_STACK_MODE) {
8957                         mask |= XCB_CONFIG_WINDOW_STACK_MODE;
8958                         wc[i++] = e->stack_mode;
8959                 }
8960
8961                 if (mask != 0) {
8962                         xcb_configure_window(conn, e->window, mask, wc);
8963                         xcb_flush(conn);
8964                 }
8965         } else if ((!MANUAL(win) || win->quirks & SWM_Q_ANYWHERE) &&
8966             !FULLSCREEN(win) && !MAXIMIZED(win)) {
8967                 if (win->ws->r)
8968                         r = win->ws->r;
8969                 else if (win->ws->old_r)
8970                         r = win->ws->old_r;
8971
8972                 /* windows are centered unless ANYWHERE quirk is set. */
8973                 if (win->quirks & SWM_Q_ANYWHERE) {
8974                         if (e->value_mask & XCB_CONFIG_WINDOW_X) {
8975                                 win->g_float.x = e->x;
8976                                 if (r)
8977                                         win->g_float.x -= X(r);
8978                         }
8979
8980                         if (e->value_mask & XCB_CONFIG_WINDOW_Y) {
8981                                 win->g_float.y = e->y;
8982                                 if (r)
8983                                         win->g_float.y -= Y(r);
8984                         }
8985                 }
8986
8987                 if (e->value_mask & XCB_CONFIG_WINDOW_WIDTH)
8988                         win->g_float.w = e->width;
8989
8990                 if (e->value_mask & XCB_CONFIG_WINDOW_HEIGHT)
8991                         win->g_float.h = e->height;
8992
8993                 win->g_floatvalid = 1;
8994
8995                 if (ABOVE(win) && r && !MAXIMIZED(win) && (TRANS(win) ||
8996                     win->ws->cur_layout != &layouts[SWM_MAX_STACK])) {
8997                         WIDTH(win) = win->g_float.w;
8998                         HEIGHT(win) = win->g_float.h;
8999
9000                         if (r) {
9001                                 update_floater(win);
9002                                 focus_flush();
9003                         }
9004                 } else {
9005                         config_win(win, e);
9006                         xcb_flush(conn);
9007                 }
9008         } else {
9009                 config_win(win, e);
9010                 xcb_flush(conn);
9011         }
9012
9013         DNPRINTF(SWM_D_EVENT, "configurerequest: done.\n");
9014 }
9015
9016 void
9017 configurenotify(xcb_configure_notify_event_t *e)
9018 {
9019         struct ws_win           *win;
9020
9021         DNPRINTF(SWM_D_EVENT, "configurenotify: win %#x, event win: %#x, "
9022             "(x,y) WxH: (%d,%d) %ux%u, border: %u, above_sibling: %#x, "
9023             "override_redirect: %s\n", e->window, e->event, e->x, e->y,
9024             e->width, e->height, e->border_width, e->above_sibling,
9025             YESNO(e->override_redirect));
9026
9027         win = find_window(e->window);
9028         if (win) {
9029                 xcb_icccm_get_wm_normal_hints_reply(conn,
9030                     xcb_icccm_get_wm_normal_hints(conn, win->id),
9031                     &win->sh, NULL);
9032                 adjust_font(win);
9033                 if (font_adjusted) {
9034                         stack();
9035                         xcb_flush(conn);
9036                 }
9037         }
9038 }
9039
9040 void
9041 destroynotify(xcb_destroy_notify_event_t *e)
9042 {
9043         struct ws_win           *win;
9044
9045         DNPRINTF(SWM_D_EVENT, "destroynotify: win %#x\n", e->window);
9046
9047         if ((win = find_window(e->window)) == NULL) {
9048                 if ((win = find_unmanaged_window(e->window)) == NULL)
9049                         return;
9050                 free_window(win);
9051                 return;
9052         }
9053
9054         if (focus_mode != SWM_FOCUS_FOLLOW) {
9055                 /* If we were focused, make sure we focus on something else. */
9056                 if (win == win->ws->focus)
9057                         win->ws->focus_pending = get_focus_prev(win);
9058         }
9059
9060         unmanage_window(win);
9061         stack();
9062
9063         if (focus_mode != SWM_FOCUS_FOLLOW && WS_FOCUSED(win->ws)) {
9064                 if (win->ws->focus_pending) {
9065                         focus_win(win->ws->focus_pending);
9066                         win->ws->focus_pending = NULL;
9067                 } else if (win == win->ws->focus) {
9068                         xcb_set_input_focus(conn, XCB_INPUT_FOCUS_PARENT,
9069                             win->ws->r->id, XCB_CURRENT_TIME);
9070                 }
9071         }
9072
9073         free_window(win);
9074
9075         focus_flush();
9076 }
9077
9078 #ifdef SWM_DEBUG
9079 char *
9080 get_notify_detail_label(uint8_t detail)
9081 {
9082         char *label;
9083
9084         switch (detail) {
9085         case XCB_NOTIFY_DETAIL_ANCESTOR:
9086                 label = "Ancestor";
9087                 break;
9088         case XCB_NOTIFY_DETAIL_VIRTUAL:
9089                 label = "Virtual";
9090                 break;
9091         case XCB_NOTIFY_DETAIL_INFERIOR:
9092                 label = "Inferior";
9093                 break;
9094         case XCB_NOTIFY_DETAIL_NONLINEAR:
9095                 label = "Nonlinear";
9096                 break;
9097         case XCB_NOTIFY_DETAIL_NONLINEAR_VIRTUAL:
9098                 label = "NonlinearVirtual";
9099                 break;
9100         case XCB_NOTIFY_DETAIL_POINTER:
9101                 label = "Pointer";
9102                 break;
9103         case XCB_NOTIFY_DETAIL_POINTER_ROOT:
9104                 label = "PointerRoot";
9105                 break;
9106         case XCB_NOTIFY_DETAIL_NONE:
9107                 label = "None";
9108                 break;
9109         default:
9110                 label = "Unknown";
9111         }
9112
9113         return label;
9114 }
9115
9116 char *
9117 get_notify_mode_label(uint8_t mode)
9118 {
9119         char *label;
9120
9121         switch (mode) {
9122         case XCB_NOTIFY_MODE_NORMAL:
9123                 label = "Normal";
9124                 break;
9125         case XCB_NOTIFY_MODE_GRAB:
9126                 label = "Grab";
9127                 break;
9128         case XCB_NOTIFY_MODE_UNGRAB:
9129                 label = "Ungrab";
9130                 break;
9131         case XCB_NOTIFY_MODE_WHILE_GRABBED:
9132                 label = "WhileGrabbed";
9133                 break;
9134         default:
9135                 label = "Unknown";
9136         }
9137
9138         return label;
9139 }
9140 #endif
9141
9142 void
9143 enternotify(xcb_enter_notify_event_t *e)
9144 {
9145         struct ws_win           *win;
9146         struct swm_region       *r;
9147
9148         DNPRINTF(SWM_D_FOCUS, "enternotify: time: %u, win (x,y): %#x "
9149             "(%d,%d), mode: %s(%d), detail: %s(%d), root (x,y): %#x (%d,%d), "
9150             "child: %#x, same_screen_focus: %s, state: %d\n",
9151             e->time, e->event, e->event_x, e->event_y,
9152             get_notify_mode_label(e->mode), e->mode,
9153             get_notify_detail_label(e->detail), e->detail,
9154             e->root, e->root_x, e->root_y, e->child,
9155             YESNO(e->same_screen_focus), e->state);
9156
9157         if (focus_mode == SWM_FOCUS_MANUAL &&
9158             e->mode == XCB_NOTIFY_MODE_NORMAL) {
9159                 DNPRINTF(SWM_D_EVENT, "enternotify: manual focus; ignoring.\n");
9160                 return;
9161         }
9162
9163         last_event_time = e->time;
9164
9165         if ((win = find_window(e->event)) == NULL) {
9166                 if (e->event == e->root) {
9167                         /* If no windows on pointer region, then focus root. */
9168                         r = root_to_region(e->root, SWM_CK_POINTER);
9169                         if (r == NULL) {
9170                                 DNPRINTF(SWM_D_EVENT, "enternotify: "
9171                                     "NULL region; ignoring.\n");
9172                                 return;
9173                         }
9174
9175                         focus_region(r);
9176                 } else {
9177                         DNPRINTF(SWM_D_EVENT, "enternotify: window is NULL; "
9178                             "ignoring\n");
9179                         return;
9180                 }
9181         } else {
9182                 focus_win(get_focus_magic(win));
9183         }
9184
9185         xcb_flush(conn);
9186 }
9187
9188 #ifdef SWM_DEBUG
9189 void
9190 leavenotify(xcb_leave_notify_event_t *e)
9191 {
9192         DNPRINTF(SWM_D_FOCUS, "leavenotify: time: %u, win (x,y): %#x "
9193             "(%d,%d), mode: %s(%d), detail: %s(%d), root (x,y): %#x (%d,%d), "
9194             "child: %#x, same_screen_focus: %s, state: %d\n",
9195             e->time, e->event, e->event_x, e->event_y,
9196             get_notify_mode_label(e->mode), e->mode,
9197             get_notify_detail_label(e->detail), e->detail,
9198             e->root, e->root_x, e->root_y, e->child,
9199             YESNO(e->same_screen_focus), e->state);
9200 }
9201 #endif
9202
9203 void
9204 mapnotify(xcb_map_notify_event_t *e)
9205 {
9206         struct ws_win           *win, *parent = NULL;
9207         struct workspace        *ws;
9208
9209         DNPRINTF(SWM_D_EVENT, "mapnotify: win %#x\n", e->window);
9210
9211         if ((win = manage_window(e->window, 1)) == NULL)
9212                 return;
9213         ws = win->ws;
9214
9215         /* Need to know if win was mapped due to ws switch. */
9216         if (ws->state == SWM_WS_STATE_MAPPED) {
9217                 if (ws->focus_pending && TRANS(ws->focus_pending))
9218                         parent = find_window(win->transient);
9219
9220                 /* If window's parent is maximized, don't clear it. */
9221                 if ((parent == NULL) || !MAXIMIZED(parent))
9222                         if (clear_maximized(ws) > 0)
9223                                 stack();
9224         }
9225
9226         win->mapped = 1;
9227         set_win_state(win, XCB_ICCCM_WM_STATE_NORMAL);
9228
9229         if (focus_mode != SWM_FOCUS_FOLLOW && WS_FOCUSED(win->ws)) {
9230                 if (ws->focus_pending == win) {
9231                         focus_win(win);
9232                         ws->focus_pending = NULL;
9233                         focus_flush();
9234                 }
9235         }
9236
9237         xcb_flush(conn);
9238 }
9239
9240 void
9241 mappingnotify(xcb_mapping_notify_event_t *e)
9242 {
9243         struct ws_win   *w;
9244         int     i, j, num_screens;
9245
9246         xcb_refresh_keyboard_mapping(syms, e);
9247
9248         if (e->request == XCB_MAPPING_KEYBOARD) {
9249                 grabkeys();
9250
9251                 /* Regrab buttons on all managed windows. */
9252                 num_screens = get_screen_count();
9253                 for (i = 0; i < num_screens; i++)
9254                         for (j = 0; j < workspace_limit; j++)
9255                                 TAILQ_FOREACH(w, &screens[i].ws[j].winlist,
9256                                     entry)
9257                                         grabbuttons(w);
9258         }
9259 }
9260
9261 void
9262 maprequest(xcb_map_request_event_t *e)
9263 {
9264         struct ws_win           *win, *w = NULL;
9265         xcb_get_window_attributes_reply_t *war;
9266
9267         DNPRINTF(SWM_D_EVENT, "maprequest: win %#x\n",
9268             e->window);
9269
9270         war = xcb_get_window_attributes_reply(conn,
9271             xcb_get_window_attributes(conn, e->window),
9272             NULL);
9273         if (war == NULL) {
9274                 DNPRINTF(SWM_D_EVENT, "maprequest: window lost.\n");
9275                 goto out;
9276         }
9277
9278         if (war->override_redirect) {
9279                 DNPRINTF(SWM_D_EVENT, "maprequest: override_redirect; "
9280                     "skipping.\n");
9281                 goto out;
9282         }
9283
9284         win = manage_window(e->window,
9285             (war->map_state == XCB_MAP_STATE_VIEWABLE));
9286         if (win == NULL)
9287                 goto out;
9288
9289         /* The new window should get focus; prepare. */
9290         if (focus_mode != SWM_FOCUS_FOLLOW &&
9291             !(win->quirks & SWM_Q_NOFOCUSONMAP) &&
9292             (!(win->hints.flags & XCB_ICCCM_WM_HINT_INPUT) ||
9293              (win->hints.flags & XCB_ICCCM_WM_HINT_INPUT &&
9294               win->hints.input))) {
9295                 if (win->quirks & SWM_Q_FOCUSONMAP_SINGLE) {
9296                         /* See if other wins of same type are already mapped. */
9297                         TAILQ_FOREACH(w, &win->ws->winlist, entry) {
9298                                 if (w == win || !w->mapped)
9299                                         continue;
9300
9301                                 if (w->ch.class_name &&
9302                                     win->ch.class_name &&
9303                                     strcmp(w->ch.class_name,
9304                                     win->ch.class_name) == 0 &&
9305                                     w->ch.instance_name &&
9306                                     win->ch.instance_name &&
9307                                     strcmp(w->ch.instance_name,
9308                                     win->ch.instance_name) == 0)
9309                                         break;
9310                         }
9311                 }
9312
9313                 if (w == NULL)
9314                         win->ws->focus_pending = get_focus_magic(win);
9315         }
9316
9317         /* All windows need to be mapped if they are in the current workspace.*/
9318         if (win->ws->r)
9319                 stack();
9320
9321         /* Ignore EnterNotify to handle the mapnotify without interference. */
9322         if (focus_mode == SWM_FOCUS_DEFAULT)
9323                 event_drain(XCB_ENTER_NOTIFY);
9324 out:
9325         free(war);
9326         DNPRINTF(SWM_D_EVENT, "maprequest: done.\n");
9327 }
9328
9329 void
9330 motionnotify(xcb_motion_notify_event_t *e)
9331 {
9332         struct swm_region       *r = NULL;
9333         int                     i, num_screens;
9334
9335         DNPRINTF(SWM_D_FOCUS, "motionnotify: time: %u, win (x,y): %#x "
9336             "(%d,%d), detail: %s(%d), root (x,y): %#x (%d,%d), "
9337             "child: %#x, same_screen_focus: %s, state: %d\n",
9338             e->time, e->event, e->event_x, e->event_y,
9339             get_notify_detail_label(e->detail), e->detail,
9340             e->root, e->root_x, e->root_y, e->child,
9341             YESNO(e->same_screen), e->state);
9342
9343         last_event_time = e->time;
9344
9345         if (focus_mode == SWM_FOCUS_MANUAL)
9346                 return;
9347
9348         num_screens = get_screen_count();
9349         for (i = 0; i < num_screens; i++)
9350                 if (screens[i].root == e->root)
9351                         break;
9352
9353         TAILQ_FOREACH(r, &screens[i].rl, entry)
9354                 if (X(r) <= e->root_x && e->root_x < MAX_X(r) &&
9355                     Y(r) <= e->root_y && e->root_y < MAX_Y(r))
9356                         break;
9357
9358         focus_region(r);
9359 }
9360
9361 #ifdef SWM_DEBUG
9362 char *
9363 get_atom_name(xcb_atom_t atom)
9364 {
9365         char                            *name = NULL;
9366 #ifdef SWM_DEBUG_ATOM_NAMES
9367         /*
9368          * This should be disabled during most debugging since
9369          * xcb_get_* causes an xcb_flush.
9370          */
9371         size_t                          len;
9372         xcb_get_atom_name_reply_t       *r;
9373
9374         r = xcb_get_atom_name_reply(conn,
9375             xcb_get_atom_name(conn, atom),
9376             NULL);
9377         if (r) {
9378                 len = xcb_get_atom_name_name_length(r);
9379                 if (len > 0) {
9380                         name = malloc(len + 1);
9381                         if (name) {
9382                                 memcpy(name, xcb_get_atom_name_name(r), len);
9383                                 name[len] = '\0';
9384                         }
9385                 }
9386                 free(r);
9387         }
9388 #else
9389         (void)atom;
9390 #endif
9391         return (name);
9392 }
9393 #endif
9394
9395 void
9396 propertynotify(xcb_property_notify_event_t *e)
9397 {
9398         struct ws_win           *win;
9399         struct workspace        *ws;
9400 #ifdef SWM_DEBUG
9401         char                    *name;
9402
9403         name = get_atom_name(e->atom);
9404         DNPRINTF(SWM_D_EVENT, "propertynotify: win %#x, atom: %s(%u), "
9405             "time: %#x, state: %u\n", e->window, name, e->atom, e->time,
9406             e->state);
9407         free(name);
9408 #endif
9409         win = find_window(e->window);
9410         if (win == NULL)
9411                 return;
9412
9413         ws = win->ws;
9414
9415         last_event_time = e->time;
9416
9417         if (e->atom == a_state) {
9418                 /* State just changed, make sure it gets focused if mapped. */
9419                 if (e->state == XCB_PROPERTY_NEW_VALUE) {
9420                         if (focus_mode != SWM_FOCUS_FOLLOW && WS_FOCUSED(ws)) {
9421                                 if (win->mapped &&
9422                                     ws->focus_pending == win) {
9423                                         focus_win(ws->focus_pending);
9424                                         ws->focus_pending = NULL;
9425                                 }
9426                         }
9427                 }
9428         } else if (e->atom == XCB_ATOM_WM_CLASS ||
9429             e->atom == XCB_ATOM_WM_NAME) {
9430                 bar_draw();
9431         } else if (e->atom == a_prot) {
9432                 get_wm_protocols(win);
9433         }
9434
9435         xcb_flush(conn);
9436 }
9437
9438 void
9439 unmapnotify(xcb_unmap_notify_event_t *e)
9440 {
9441         struct ws_win           *win;
9442         struct workspace        *ws;
9443
9444         DNPRINTF(SWM_D_EVENT, "unmapnotify: win %#x\n", e->window);
9445
9446         /* If we aren't managing the window, then ignore. */
9447         win = find_window(e->window);
9448         if (win == NULL || win->id != e->window)
9449                 return;
9450
9451         /* Do nothing if already withdrawn. */
9452         if (!win->mapped && !ICONIC(win))
9453                 return;
9454
9455         ws = win->ws;
9456         win->mapped = 0;
9457
9458         /* If win was focused, make sure to focus on something else. */
9459         if (win == ws->focus) {
9460                 if (focus_mode != SWM_FOCUS_FOLLOW) {
9461                         ws->focus_pending = get_focus_prev(win);
9462                         DNPRINTF(SWM_D_EVENT, "unmapnotify: "
9463                             "focus_pending: %#x\n",
9464                             WINID(ws->focus_pending));
9465                 }
9466
9467                 unfocus_win(win);
9468         }
9469
9470         if (ICONIC(win)) {
9471                 /* Iconify. */
9472                 set_win_state(win, XCB_ICCCM_WM_STATE_ICONIC);
9473         } else {
9474                 /* Withdraw. */
9475                 set_win_state(win, XCB_ICCCM_WM_STATE_WITHDRAWN);
9476                 unmanage_window(win);
9477         }
9478
9479         if (ws->r)
9480                 stack();
9481
9482         /* Update focus if ws is active. */
9483         if (WS_FOCUSED(ws)) {
9484                 if (focus_mode == SWM_FOCUS_FOLLOW) {
9485                         focus_win(get_pointer_win(ws->r->s->root));
9486                 } else if (ws->focus_pending) {
9487                         focus_win(ws->focus_pending);
9488                         ws->focus_pending = NULL;
9489                 } else if (ws->focus == NULL) {
9490                         xcb_set_input_focus(conn, XCB_INPUT_FOCUS_PARENT,
9491                             ws->r->id, XCB_CURRENT_TIME);
9492                 }
9493         }
9494
9495         focus_flush();
9496 }
9497
9498 void
9499 clientmessage(xcb_client_message_event_t *e)
9500 {
9501         struct ws_win           *win;
9502         struct swm_region       *r = NULL;
9503         union arg               a;
9504         uint32_t                val[2];
9505         int                     num_screens, i;
9506         xcb_map_request_event_t mre;
9507 #ifdef SWM_DEBUG
9508         char                    *name;
9509
9510         name = get_atom_name(e->type);
9511         DNPRINTF(SWM_D_EVENT, "clientmessage: win %#x, atom: %s(%u)\n",
9512             e->window, name, e->type);
9513         free(name);
9514 #endif
9515
9516         if (e->type == ewmh[_NET_CURRENT_DESKTOP].atom) {
9517                 num_screens = get_screen_count();
9518                 for (i = 0; i < num_screens; i++)
9519                         if (screens[i].root == e->window) {
9520                                 r = screens[i].r_focus;
9521                                 break;
9522                         }
9523
9524                 if (r && e->data.data32[0] <
9525                     (uint32_t)workspace_limit) {
9526                         a.id = e->data.data32[0];
9527                         switchws(r, &a);
9528                         focus_flush();
9529                 }
9530
9531                 return;
9532         }
9533
9534         win = find_window(e->window);
9535         if (win == NULL) {
9536                 if (e->type == ewmh[_NET_ACTIVE_WINDOW].atom) {
9537                         /* Manage the window with maprequest. */
9538                         DNPRINTF(SWM_D_EVENT, "clientmessage: request focus on "
9539                             "unmanaged window.\n");
9540                         mre.window = e->window;
9541                         maprequest(&mre);
9542                 }
9543                 return;
9544         }
9545
9546         if (e->type == ewmh[_NET_ACTIVE_WINDOW].atom) {
9547                 DNPRINTF(SWM_D_EVENT, "clientmessage: _NET_ACTIVE_WINDOW\n");
9548                 if (WS_FOCUSED(win->ws))
9549                         focus_win(win);
9550                 else
9551                         win->ws->focus_pending = win;
9552         } else if (e->type == ewmh[_NET_CLOSE_WINDOW].atom) {
9553                 DNPRINTF(SWM_D_EVENT, "clientmessage: _NET_CLOSE_WINDOW\n");
9554                 if (win->can_delete)
9555                         client_msg(win, a_delete, 0);
9556                 else
9557                         xcb_kill_client(conn, win->id);
9558         } else if (e->type == ewmh[_NET_MOVERESIZE_WINDOW].atom) {
9559                 DNPRINTF(SWM_D_EVENT,
9560                     "clientmessage: _NET_MOVERESIZE_WINDOW\n");
9561                 if (ABOVE(win)) {
9562                         if (e->data.data32[0] & (1<<8)) /* x */
9563                                 X(win) = e->data.data32[1];
9564                         if (e->data.data32[0] & (1<<9)) /* y */
9565                                 Y(win) = e->data.data32[2];
9566                         if (e->data.data32[0] & (1<<10)) /* width */
9567                                 WIDTH(win) = e->data.data32[3];
9568                         if (e->data.data32[0] & (1<<11)) /* height */
9569                                 HEIGHT(win) = e->data.data32[4];
9570
9571                         update_window(win);
9572                 } else {
9573                         /* TODO: Change stack sizes */
9574                         /* notify no change was made. */
9575                         config_win(win, NULL);
9576                 }
9577         } else if (e->type == ewmh[_NET_RESTACK_WINDOW].atom) {
9578                 DNPRINTF(SWM_D_EVENT, "clientmessage: _NET_RESTACK_WINDOW\n");
9579                 val[0] = e->data.data32[1]; /* Sibling window. */
9580                 val[1] = e->data.data32[2]; /* Stack mode detail. */
9581
9582                 xcb_configure_window(conn, win->id, XCB_CONFIG_WINDOW_SIBLING |
9583                     XCB_CONFIG_WINDOW_STACK_MODE, val);
9584         } else  if (e->type == ewmh[_NET_WM_STATE].atom) {
9585                 DNPRINTF(SWM_D_EVENT, "clientmessage: _NET_WM_STATE\n");
9586                 ewmh_change_wm_state(win, e->data.data32[1], e->data.data32[0]);
9587                 if (e->data.data32[2])
9588                         ewmh_change_wm_state(win, e->data.data32[2],
9589                             e->data.data32[0]);
9590
9591                 ewmh_update_wm_state(win);
9592                 stack();
9593         }
9594
9595         focus_flush();
9596 }
9597
9598 void
9599 check_conn(void)
9600 {
9601         int      errcode = xcb_connection_has_error(conn);
9602 #ifdef XCB_CONN_ERROR
9603         char    *s;
9604         switch (errcode) {
9605         case XCB_CONN_ERROR:
9606                 s = "Socket error, pipe error or other stream error.";
9607                 break;
9608         case XCB_CONN_CLOSED_EXT_NOTSUPPORTED:
9609                 s = "Extension not supported.";
9610                 break;
9611         case XCB_CONN_CLOSED_MEM_INSUFFICIENT:
9612                 s = "Insufficient memory.";
9613                 break;
9614         case XCB_CONN_CLOSED_REQ_LEN_EXCEED:
9615                 s = "Request length was exceeded.";
9616                 break;
9617         case XCB_CONN_CLOSED_PARSE_ERR:
9618                 s = "Error parsing display string.";
9619                 break;
9620         default:
9621                 s = "Unknown error.";
9622         }
9623         if (errcode)
9624                 errx(errcode, "X CONNECTION ERROR: %s", s);
9625 #else
9626         if (errcode)
9627                 errx(errcode, "X CONNECTION ERROR");
9628 #endif
9629 }
9630
9631 int
9632 enable_wm(void)
9633 {
9634         int                     num_screens, i;
9635         const uint32_t          val = XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT |
9636             XCB_EVENT_MASK_ENTER_WINDOW;
9637         xcb_screen_t            *sc;
9638         xcb_void_cookie_t       wac;
9639         xcb_generic_error_t     *error;
9640
9641         /* this causes an error if some other window manager is running */
9642         num_screens = get_screen_count();
9643         for (i = 0; i < num_screens; i++) {
9644                 if ((sc = get_screen(i)) == NULL)
9645                         errx(1, "ERROR: can't get screen %d.", i);
9646                 DNPRINTF(SWM_D_INIT, "enable_wm: screen %d, root: %#x\n",
9647                     i, sc->root);
9648                 wac = xcb_change_window_attributes_checked(conn, sc->root,
9649                     XCB_CW_EVENT_MASK, &val);
9650                 if ((error = xcb_request_check(conn, wac))) {
9651                         DNPRINTF(SWM_D_INIT, "enable_wm: error_code: %u\n",
9652                             error->error_code);
9653                         free(error);
9654                         return 1;
9655                 }
9656
9657                 /* click to focus on empty region */
9658                 xcb_grab_button(conn, 1, sc->root, BUTTONMASK,
9659                     XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC, XCB_WINDOW_NONE,
9660                     XCB_CURSOR_NONE, XCB_BUTTON_INDEX_1, XCB_BUTTON_MASK_ANY);
9661         }
9662
9663         return 0;
9664 }
9665
9666 void
9667 new_region(struct swm_screen *s, int x, int y, int w, int h)
9668 {
9669         struct swm_region       *r = NULL, *n;
9670         struct workspace        *ws = NULL;
9671         int                     i;
9672         uint32_t                wa[1];
9673
9674         DNPRINTF(SWM_D_MISC, "new region: screen[%d]:%dx%d+%d+%d\n",
9675              s->idx, w, h, x, y);
9676
9677         /* remove any conflicting regions */
9678         n = TAILQ_FIRST(&s->rl);
9679         while (n) {
9680                 r = n;
9681                 n = TAILQ_NEXT(r, entry);
9682                 if (X(r) < (x + w) && (X(r) + WIDTH(r)) > x &&
9683                     Y(r) < (y + h) && (Y(r) + HEIGHT(r)) > y) {
9684                         if (r->ws->r != NULL)
9685                                 r->ws->old_r = r->ws->r;
9686                         r->ws->r = NULL;
9687                         bar_cleanup(r);
9688                         xcb_destroy_window(conn, r->id);
9689                         TAILQ_REMOVE(&s->rl, r, entry);
9690                         TAILQ_INSERT_TAIL(&s->orl, r, entry);
9691                 }
9692         }
9693
9694         /* search old regions for one to reuse */
9695
9696         /* size + location match */
9697         TAILQ_FOREACH(r, &s->orl, entry)
9698                 if (X(r) == x && Y(r) == y &&
9699                     HEIGHT(r) == h && WIDTH(r) == w)
9700                         break;
9701
9702         /* size match */
9703         TAILQ_FOREACH(r, &s->orl, entry)
9704                 if (HEIGHT(r) == h && WIDTH(r) == w)
9705                         break;
9706
9707         if (r != NULL) {
9708                 TAILQ_REMOVE(&s->orl, r, entry);
9709                 /* try to use old region's workspace */
9710                 if (r->ws->r == NULL)
9711                         ws = r->ws;
9712         } else
9713                 if ((r = calloc(1, sizeof(struct swm_region))) == NULL)
9714                         err(1, "new_region: calloc: failed to allocate memory "
9715                             "for screen");
9716
9717         /* if we don't have a workspace already, find one */
9718         if (ws == NULL) {
9719                 for (i = 0; i < workspace_limit; i++)
9720                         if (s->ws[i].r == NULL) {
9721                                 ws = &s->ws[i];
9722                                 break;
9723                         }
9724         }
9725
9726         if (ws == NULL)
9727                 errx(1, "new_region: no free workspaces");
9728
9729         if (ws->state == SWM_WS_STATE_HIDDEN)
9730                 ws->state = SWM_WS_STATE_MAPPING;
9731
9732         X(r) = x;
9733         Y(r) = y;
9734         WIDTH(r) = w;
9735         HEIGHT(r) = h;
9736         r->s = s;
9737         r->ws = ws;
9738         r->ws_prior = NULL;
9739         ws->r = r;
9740         outputs++;
9741         TAILQ_INSERT_TAIL(&s->rl, r, entry);
9742
9743         /* Invisible region window to detect pointer events on empty regions. */
9744         r->id = xcb_generate_id(conn);
9745         wa[0] = XCB_EVENT_MASK_POINTER_MOTION |
9746             XCB_EVENT_MASK_POINTER_MOTION_HINT;
9747
9748         xcb_create_window(conn, XCB_COPY_FROM_PARENT, r->id, r->s->root,
9749             X(r), Y(r), WIDTH(r), HEIGHT(r), 0, XCB_WINDOW_CLASS_INPUT_ONLY,
9750             XCB_COPY_FROM_PARENT, XCB_CW_EVENT_MASK, wa);
9751
9752         /* Make sure region input is at the bottom. */
9753         wa[0] = XCB_STACK_MODE_BELOW;
9754         xcb_configure_window(conn, r->id, XCB_CONFIG_WINDOW_STACK_MODE, wa);
9755
9756         xcb_map_window(conn, r->id);
9757 }
9758
9759 void
9760 scan_xrandr(int i)
9761 {
9762 #ifdef SWM_XRR_HAS_CRTC
9763         int                                             c;
9764         int                                             ncrtc = 0;
9765 #endif /* SWM_XRR_HAS_CRTC */
9766         struct swm_region                               *r;
9767         struct ws_win                                   *win;
9768         int                                             num_screens;
9769         xcb_randr_get_screen_resources_current_cookie_t src;
9770         xcb_randr_get_screen_resources_current_reply_t  *srr;
9771         xcb_randr_get_crtc_info_cookie_t                cic;
9772         xcb_randr_get_crtc_info_reply_t                 *cir = NULL;
9773         xcb_randr_crtc_t                                *crtc;
9774         xcb_screen_t                                    *screen;
9775
9776         DNPRINTF(SWM_D_MISC, "scan_xrandr: screen: %d\n", i);
9777
9778         if ((screen = get_screen(i)) == NULL)
9779                 errx(1, "ERROR: can't get screen %d.", i);
9780
9781         num_screens = get_screen_count();
9782         if (i >= num_screens)
9783                 errx(1, "scan_xrandr: invalid screen");
9784
9785         /* remove any old regions */
9786         while ((r = TAILQ_FIRST(&screens[i].rl)) != NULL) {
9787                 r->ws->old_r = r->ws->r = NULL;
9788                 bar_cleanup(r);
9789                 xcb_destroy_window(conn, r->id);
9790                 TAILQ_REMOVE(&screens[i].rl, r, entry);
9791                 TAILQ_INSERT_TAIL(&screens[i].orl, r, entry);
9792         }
9793         outputs = 0;
9794
9795         /* map virtual screens onto physical screens */
9796 #ifdef SWM_XRR_HAS_CRTC
9797         if (xrandr_support) {
9798                 src = xcb_randr_get_screen_resources_current(conn,
9799                     screens[i].root);
9800                 srr = xcb_randr_get_screen_resources_current_reply(conn, src,
9801                     NULL);
9802                 if (srr == NULL) {
9803                         new_region(&screens[i], 0, 0,
9804                             screen->width_in_pixels,
9805                             screen->height_in_pixels);
9806                         goto out;
9807                 } else
9808                         ncrtc = srr->num_crtcs;
9809
9810                 crtc = xcb_randr_get_screen_resources_current_crtcs(srr);
9811                 for (c = 0; c < ncrtc; c++) {
9812                         cic = xcb_randr_get_crtc_info(conn, crtc[c],
9813                             XCB_CURRENT_TIME);
9814                         cir = xcb_randr_get_crtc_info_reply(conn, cic, NULL);
9815                         if (cir == NULL)
9816                                 continue;
9817                         if (cir->num_outputs == 0) {
9818                                 free(cir);
9819                                 continue;
9820                         }
9821
9822                         if (cir->mode == 0)
9823                                 new_region(&screens[i], 0, 0,
9824                                     screen->width_in_pixels,
9825                                     screen->height_in_pixels);
9826                         else
9827                                 new_region(&screens[i],
9828                                     cir->x, cir->y, cir->width, cir->height);
9829                         free(cir);
9830                 }
9831                 free(srr);
9832         }
9833 #endif /* SWM_XRR_HAS_CRTC */
9834
9835         /* If detection failed, create a single region that spans the screen. */
9836         if (TAILQ_EMPTY(&screens[i].rl))
9837                 new_region(&screens[i], 0, 0, screen->width_in_pixels,
9838                     screen->height_in_pixels);
9839
9840 out:
9841         /* Cleanup unused previously visible workspaces. */
9842         TAILQ_FOREACH(r, &screens[i].orl, entry) {
9843                 TAILQ_FOREACH(win, &r->ws->winlist, entry)
9844                         unmap_window(win);
9845                 r->ws->state = SWM_WS_STATE_HIDDEN;
9846
9847                 /* The screen shouldn't focus on an unused region. */
9848                 if (screens[i].r_focus == r)
9849                         screens[i].r_focus = NULL;
9850         }
9851
9852         DNPRINTF(SWM_D_MISC, "scan_xrandr: done.\n");
9853 }
9854
9855 void
9856 screenchange(xcb_randr_screen_change_notify_event_t *e)
9857 {
9858         struct swm_region               *r;
9859         int                             i, num_screens;
9860
9861         DNPRINTF(SWM_D_EVENT, "screenchange: root: %#x\n", e->root);
9862
9863         num_screens = get_screen_count();
9864         /* silly event doesn't include the screen index */
9865         for (i = 0; i < num_screens; i++)
9866                 if (screens[i].root == e->root)
9867                         break;
9868         if (i >= num_screens)
9869                 errx(1, "screenchange: screen not found");
9870
9871         /* brute force for now, just re-enumerate the regions */
9872         scan_xrandr(i);
9873
9874 #ifdef SWM_DEBUG
9875         print_win_geom(e->root);
9876 #endif
9877         /* add bars to all regions */
9878         for (i = 0; i < num_screens; i++) {
9879                 TAILQ_FOREACH(r, &screens[i].rl, entry)
9880                         bar_setup(r);
9881         }
9882
9883         stack();
9884
9885         /* Make sure a region has focus on each screen. */
9886         for (i = 0; i < num_screens; i++) {
9887                 if (screens[i].r_focus == NULL) {
9888                         r = TAILQ_FIRST(&screens[i].rl);
9889                         if (r != NULL)
9890                                 focus_region(r);
9891                 }
9892         }
9893
9894         bar_draw();
9895         focus_flush();
9896
9897         /* Update workspace state on all regions. */
9898         for (i = 0; i < num_screens; i++)
9899                 TAILQ_FOREACH(r, &screens[i].rl, entry)
9900                         r->ws->state = SWM_WS_STATE_MAPPED;
9901 }
9902
9903 void
9904 grab_windows(void)
9905 {
9906         struct swm_region       *r = NULL;
9907         xcb_window_t            *wins = NULL, trans, *cwins = NULL;
9908         int                     i, j, k, n, no, num_screens, manage, mapped;
9909         uint8_t                 state;
9910
9911         xcb_query_tree_cookie_t                 qtc;
9912         xcb_query_tree_reply_t                  *qtr;
9913         xcb_get_window_attributes_cookie_t      gac;
9914         xcb_get_window_attributes_reply_t       *gar;
9915         xcb_get_property_cookie_t               pc;
9916         xcb_get_property_reply_t                *pr;
9917
9918         DNPRINTF(SWM_D_INIT, "grab_windows: begin\n");
9919         num_screens = get_screen_count();
9920         for (i = 0; i < num_screens; i++) {
9921                 qtc = xcb_query_tree(conn, screens[i].root);
9922                 qtr = xcb_query_tree_reply(conn, qtc, NULL);
9923                 if (qtr == NULL)
9924                         continue;
9925                 wins = xcb_query_tree_children(qtr);
9926                 no = xcb_query_tree_children_length(qtr);
9927
9928                 /* Try to sort windows according to _NET_CLIENT_LIST. */
9929                 pr = xcb_get_property_reply(conn, xcb_get_property(conn, 0,
9930                     screens[i].root, ewmh[_NET_CLIENT_LIST].atom,
9931                     XCB_ATOM_WINDOW, 0, UINT32_MAX), NULL);
9932                 if (pr != NULL) {
9933                         cwins = xcb_get_property_value(pr);
9934                         n = xcb_get_property_value_length(pr) /
9935                             sizeof(xcb_atom_t);
9936
9937                         for (j = 0; j < n; ++j) {
9938                                 for (k = j; k < no; ++k) {
9939                                         if (wins[k] == cwins[j]) {
9940                                                 /* Swap wins j and k. */
9941                                                 wins[k] = wins[j];
9942                                                 wins[j] = cwins[j];
9943                                         }
9944                                 }
9945                         }
9946
9947                         free(pr);
9948                 }
9949
9950                 /* attach windows to a region */
9951                 /* normal windows */
9952                 DNPRINTF(SWM_D_INIT, "grab_windows: grab top level windows.\n");
9953                 for (j = 0; j < no; j++) {
9954                         TAILQ_FOREACH(r, &screens[i].rl, entry) {
9955                                 if (r->id == wins[j]) {
9956                                         DNPRINTF(SWM_D_INIT, "grab_windows: "
9957                                             "skip %#x; region input window.\n",
9958                                             wins[j]);
9959                                         break;
9960                                 }
9961                         }
9962
9963                         if (r)
9964                                 continue;
9965
9966                         gac = xcb_get_window_attributes(conn, wins[j]);
9967                         gar = xcb_get_window_attributes_reply(conn, gac, NULL);
9968                         if (gar == NULL) {
9969                                 DNPRINTF(SWM_D_INIT, "grab_windows: skip %#x; "
9970                                     "doesn't exist.\n", wins[j]);
9971                                 continue;
9972                         }
9973
9974                         if (gar->override_redirect) {
9975                                 DNPRINTF(SWM_D_INIT, "grab_windows: skip %#x; "
9976                                     "override_redirect set.\n", wins[j]);
9977                                 free(gar);
9978                                 continue;
9979                         }
9980
9981                         pc = xcb_icccm_get_wm_transient_for(conn, wins[j]);
9982                         if (xcb_icccm_get_wm_transient_for_reply(conn, pc,
9983                             &trans, NULL)) {
9984                                 DNPRINTF(SWM_D_INIT, "grab_windows: skip %#x; "
9985                                     "is transient for %#x.\n", wins[j], trans);
9986                                 free(gar);
9987                                 continue;
9988                         }
9989
9990                         state = getstate(wins[j]);
9991                         manage = state != XCB_ICCCM_WM_STATE_WITHDRAWN;
9992                         mapped = gar->map_state == XCB_MAP_STATE_VIEWABLE;
9993                         if (mapped || manage)
9994                                 manage_window(wins[j], mapped);
9995                         free(gar);
9996                 }
9997                 /* transient windows */
9998                 DNPRINTF(SWM_D_INIT, "grab_windows: grab transient windows.\n");
9999                 for (j = 0; j < no; j++) {
10000                         gac = xcb_get_window_attributes(conn, wins[j]);
10001                         gar = xcb_get_window_attributes_reply(conn, gac, NULL);
10002                         if (gar == NULL) {
10003                                 DNPRINTF(SWM_D_INIT, "grab_windows: skip %#x; "
10004                                     "doesn't exist.\n", wins[j]);
10005                                 continue;
10006                         }
10007
10008                         if (gar->override_redirect) {
10009                                 DNPRINTF(SWM_D_INIT, "grab_windows: skip %#x; "
10010                                     "override_redirect set.\n", wins[j]);
10011                                 free(gar);
10012                                 continue;
10013                         }
10014
10015                         state = getstate(wins[j]);
10016                         manage = state != XCB_ICCCM_WM_STATE_WITHDRAWN;
10017                         mapped = gar->map_state == XCB_MAP_STATE_VIEWABLE;
10018                         pc = xcb_icccm_get_wm_transient_for(conn, wins[j]);
10019                         if (xcb_icccm_get_wm_transient_for_reply(conn, pc,
10020                             &trans, NULL) && manage)
10021                                 manage_window(wins[j], mapped);
10022                         free(gar);
10023                 }
10024                 free(qtr);
10025         }
10026         DNPRINTF(SWM_D_INIT, "grab_windows: done.\n");
10027 }
10028
10029 void
10030 setup_screens(void)
10031 {
10032         int                     i, j, k, num_screens;
10033         struct workspace        *ws;
10034         uint32_t                gcv[1], wa[1];
10035         const xcb_query_extension_reply_t *qep;
10036         xcb_screen_t                            *screen;
10037         xcb_randr_query_version_cookie_t        c;
10038         xcb_randr_query_version_reply_t         *r;
10039
10040         num_screens = get_screen_count();
10041         if ((screens = calloc(num_screens,
10042              sizeof(struct swm_screen))) == NULL)
10043                 err(1, "setup_screens: calloc: failed to allocate memory for "
10044                     "screens");
10045
10046         /* initial Xrandr setup */
10047         xrandr_support = 0;
10048         qep = xcb_get_extension_data(conn, &xcb_randr_id);
10049         if (qep->present) {
10050                 c = xcb_randr_query_version(conn, 1, 1);
10051                 r = xcb_randr_query_version_reply(conn, c, NULL);
10052                 if (r) {
10053                         if (r->major_version >= 1) {
10054                                 xrandr_support = 1;
10055                                 xrandr_eventbase = qep->first_event;
10056                         }
10057                         free(r);
10058                 }
10059         }
10060
10061         wa[0] = cursors[XC_LEFT_PTR].cid;
10062
10063         /* map physical screens */
10064         for (i = 0; i < num_screens; i++) {
10065                 DNPRINTF(SWM_D_WS, "setup_screens: init screen: %d\n", i);
10066                 screens[i].idx = i;
10067                 screens[i].r_focus = NULL;
10068
10069                 TAILQ_INIT(&screens[i].rl);
10070                 TAILQ_INIT(&screens[i].orl);
10071                 if ((screen = get_screen(i)) == NULL)
10072                         errx(1, "ERROR: can't get screen %d.", i);
10073                 screens[i].root = screen->root;
10074
10075                 /* set default colors */
10076                 setscreencolor("red", i + 1, SWM_S_COLOR_FOCUS);
10077                 setscreencolor("rgb:88/88/88", i + 1, SWM_S_COLOR_UNFOCUS);
10078                 setscreencolor("rgb:00/80/80", i + 1, SWM_S_COLOR_BAR_BORDER);
10079                 setscreencolor("rgb:00/40/40", i + 1,
10080                     SWM_S_COLOR_BAR_BORDER_UNFOCUS);
10081                 setscreencolor("black", i + 1, SWM_S_COLOR_BAR);
10082                 setscreencolor("rgb:a0/a0/a0", i + 1, SWM_S_COLOR_BAR_FONT);
10083
10084                 /* create graphics context on screen */
10085                 screens[i].bar_gc = xcb_generate_id(conn);
10086                 gcv[0] = 0;
10087                 xcb_create_gc(conn, screens[i].bar_gc, screens[i].root,
10088                     XCB_GC_GRAPHICS_EXPOSURES, gcv);
10089
10090                 /* set default cursor */
10091                 xcb_change_window_attributes(conn, screens[i].root,
10092                     XCB_CW_CURSOR, wa);
10093
10094                 /* init all workspaces */
10095                 /* XXX these should be dynamically allocated too */
10096                 for (j = 0; j < SWM_WS_MAX; j++) {
10097                         ws = &screens[i].ws[j];
10098                         ws->idx = j;
10099                         ws->name = NULL;
10100                         ws->bar_enabled = 1;
10101                         ws->focus = NULL;
10102                         ws->focus_prev = NULL;
10103                         ws->focus_pending = NULL;
10104                         ws->r = NULL;
10105                         ws->old_r = NULL;
10106                         ws->state = SWM_WS_STATE_HIDDEN;
10107                         TAILQ_INIT(&ws->stack);
10108                         TAILQ_INIT(&ws->winlist);
10109                         TAILQ_INIT(&ws->unmanagedlist);
10110
10111                         for (k = 0; layouts[k].l_stack != NULL; k++)
10112                                 if (layouts[k].l_config != NULL)
10113                                         layouts[k].l_config(ws,
10114                                             SWM_ARG_ID_STACKINIT);
10115                         ws->cur_layout = &layouts[0];
10116                         ws->cur_layout->l_string(ws);
10117                 }
10118
10119                 scan_xrandr(i);
10120
10121                 if (xrandr_support)
10122                         xcb_randr_select_input(conn, screens[i].root,
10123                             XCB_RANDR_NOTIFY_MASK_SCREEN_CHANGE);
10124         }
10125 }
10126
10127 void
10128 setup_globals(void)
10129 {
10130         if ((bar_fonts = strdup(SWM_BAR_FONTS)) == NULL)
10131                 err(1, "setup_globals: strdup: failed to allocate memory.");
10132
10133         if ((clock_format = strdup("%a %b %d %R %Z %Y")) == NULL)
10134                 err(1, "setup_globals: strdup: failed to allocate memory.");
10135
10136         if ((syms = xcb_key_symbols_alloc(conn)) == NULL)
10137                 errx(1, "unable to allocate key symbols");
10138
10139         a_state = get_atom_from_string("WM_STATE");
10140         a_prot = get_atom_from_string("WM_PROTOCOLS");
10141         a_delete = get_atom_from_string("WM_DELETE_WINDOW");
10142         a_net_supported = get_atom_from_string("_NET_SUPPORTED");
10143         a_net_wm_check = get_atom_from_string("_NET_SUPPORTING_WM_CHECK");
10144         a_takefocus = get_atom_from_string("WM_TAKE_FOCUS");
10145         a_utf8_string = get_atom_from_string("UTF8_STRING");
10146         a_swm_ws = get_atom_from_string("_SWM_WS");
10147 }
10148
10149 void
10150 shutdown_cleanup(void)
10151 {
10152         int i, num_screens;
10153
10154         /* disable alarm because the following code may not be interrupted */
10155         alarm(0);
10156         if (signal(SIGALRM, SIG_IGN) == SIG_ERR)
10157                 err(1, "can't disable alarm");
10158
10159         bar_extra_stop();
10160         unmap_all();
10161
10162         cursors_cleanup();
10163
10164         teardown_ewmh();
10165
10166         num_screens = get_screen_count();
10167         for (i = 0; i < num_screens; ++i) {
10168                 xcb_set_input_focus(conn, XCB_INPUT_FOCUS_POINTER_ROOT,
10169                     screens[i].root, XCB_CURRENT_TIME);
10170
10171                 if (screens[i].bar_gc != XCB_NONE)
10172                         xcb_free_gc(conn, screens[i].bar_gc);
10173                 if (!bar_font_legacy)
10174                         XftColorFree(display, DefaultVisual(display, i),
10175                             DefaultColormap(display, i), &bar_font_color);
10176         }
10177
10178         if (bar_font_legacy)
10179                 XFreeFontSet(display, bar_fs);
10180         else {
10181                 XftFontClose(display, bar_font);
10182         }
10183
10184         xcb_key_symbols_free(syms);
10185         xcb_flush(conn);
10186         xcb_disconnect(conn);
10187 }
10188
10189 void
10190 event_error(xcb_generic_error_t *e)
10191 {
10192         (void)e;
10193
10194         DNPRINTF(SWM_D_EVENT, "event_error: %s(%u) from %s(%u), sequence: %u, "
10195             "resource_id: %u, minor_code: %u\n",
10196             xcb_event_get_error_label(e->error_code), e->error_code,
10197             xcb_event_get_request_label(e->major_code), e->major_code,
10198             e->sequence, e->resource_id, e->minor_code);
10199 }
10200
10201 void
10202 event_handle(xcb_generic_event_t *evt)
10203 {
10204         uint8_t type = XCB_EVENT_RESPONSE_TYPE(evt);
10205
10206         DNPRINTF(SWM_D_EVENT, "XCB Event: %s(%d), seq %u\n",
10207             xcb_event_get_label(XCB_EVENT_RESPONSE_TYPE(evt)),
10208             XCB_EVENT_RESPONSE_TYPE(evt), evt->sequence);
10209
10210         switch (type) {
10211 #define EVENT(type, callback) case type: callback((void *)evt); return
10212         EVENT(0, event_error);
10213         EVENT(XCB_BUTTON_PRESS, buttonpress);
10214         /*EVENT(XCB_BUTTON_RELEASE, buttonpress);*/
10215         /*EVENT(XCB_CIRCULATE_NOTIFY, );*/
10216         /*EVENT(XCB_CIRCULATE_REQUEST, );*/
10217         EVENT(XCB_CLIENT_MESSAGE, clientmessage);
10218         /*EVENT(XCB_COLORMAP_NOTIFY, );*/
10219         EVENT(XCB_CONFIGURE_NOTIFY, configurenotify);
10220         EVENT(XCB_CONFIGURE_REQUEST, configurerequest);
10221         /*EVENT(XCB_CREATE_NOTIFY, );*/
10222         EVENT(XCB_DESTROY_NOTIFY, destroynotify);
10223         EVENT(XCB_ENTER_NOTIFY, enternotify);
10224         EVENT(XCB_EXPOSE, expose);
10225 #ifdef SWM_DEBUG
10226         EVENT(XCB_FOCUS_IN, focusin);
10227         EVENT(XCB_FOCUS_OUT, focusout);
10228 #endif
10229         /*EVENT(XCB_GRAPHICS_EXPOSURE, );*/
10230         /*EVENT(XCB_GRAVITY_NOTIFY, );*/
10231         EVENT(XCB_KEY_PRESS, keypress);
10232         /*EVENT(XCB_KEY_RELEASE, keypress);*/
10233         /*EVENT(XCB_KEYMAP_NOTIFY, );*/
10234 #ifdef SWM_DEBUG
10235         EVENT(XCB_LEAVE_NOTIFY, leavenotify);
10236 #endif
10237         EVENT(XCB_MAP_NOTIFY, mapnotify);
10238         EVENT(XCB_MAP_REQUEST, maprequest);
10239         EVENT(XCB_MAPPING_NOTIFY, mappingnotify);
10240         EVENT(XCB_MOTION_NOTIFY, motionnotify);
10241         /*EVENT(XCB_NO_EXPOSURE, );*/
10242         EVENT(XCB_PROPERTY_NOTIFY, propertynotify);
10243         /*EVENT(XCB_REPARENT_NOTIFY, );*/
10244         /*EVENT(XCB_RESIZE_REQUEST, );*/
10245         /*EVENT(XCB_SELECTION_CLEAR, );*/
10246         /*EVENT(XCB_SELECTION_NOTIFY, );*/
10247         /*EVENT(XCB_SELECTION_REQUEST, );*/
10248         EVENT(XCB_UNMAP_NOTIFY, unmapnotify);
10249         /*EVENT(XCB_VISIBILITY_NOTIFY, );*/
10250 #undef EVENT
10251         }
10252         if (type - xrandr_eventbase == XCB_RANDR_SCREEN_CHANGE_NOTIFY)
10253                 screenchange((void *)evt);
10254 }
10255
10256 int
10257 main(int argc, char *argv[])
10258 {
10259         struct swm_region       *r;
10260         char                    conf[PATH_MAX], *cfile = NULL;
10261         struct stat             sb;
10262         int                     xfd, i, num_screens, startup = 1;
10263         struct sigaction        sact;
10264         xcb_generic_event_t     *evt;
10265         struct timeval          tv;
10266         fd_set                  rd;
10267         int                     rd_max;
10268         int                     stdin_ready = 0;
10269         int                     num_readable;
10270
10271         /* suppress unused warning since var is needed */
10272         (void)argc;
10273
10274         time_started = time(NULL);
10275
10276         start_argv = argv;
10277         warnx("Welcome to spectrwm V%s Build: %s", SPECTRWM_VERSION, buildstr);
10278         if (setlocale(LC_CTYPE, "") == NULL || setlocale(LC_TIME, "") == NULL)
10279                 warnx("no locale support");
10280
10281         /* handle some signals */
10282         bzero(&sact, sizeof(sact));
10283         sigemptyset(&sact.sa_mask);
10284         sact.sa_flags = 0;
10285         sact.sa_handler = sighdlr;
10286         sigaction(SIGINT, &sact, NULL);
10287         sigaction(SIGQUIT, &sact, NULL);
10288         sigaction(SIGTERM, &sact, NULL);
10289         sigaction(SIGHUP, &sact, NULL);
10290
10291         sact.sa_handler = sighdlr;
10292         sact.sa_flags = SA_NOCLDSTOP;
10293         sigaction(SIGCHLD, &sact, NULL);
10294
10295         if ((display = XOpenDisplay(0)) == NULL)
10296                 errx(1, "can not open display");
10297
10298         conn = XGetXCBConnection(display);
10299         if (xcb_connection_has_error(conn))
10300                 errx(1, "can not get XCB connection");
10301
10302         XSetEventQueueOwner(display, XCBOwnsEventQueue);
10303
10304         xcb_prefetch_extension_data(conn, &xcb_randr_id);
10305         xfd = xcb_get_file_descriptor(conn);
10306
10307         /* look for local and global conf file */
10308         pwd = getpwuid(getuid());
10309         if (pwd == NULL)
10310                 errx(1, "invalid user: %d", getuid());
10311
10312         xcb_grab_server(conn);
10313         xcb_aux_sync(conn);
10314
10315         /* flush all events */
10316         while ((evt = xcb_poll_for_event(conn))) {
10317                 if (XCB_EVENT_RESPONSE_TYPE(evt) == 0)
10318                         event_handle(evt);
10319                 free(evt);
10320         }
10321
10322         if (enable_wm())
10323                 errx(1, "another window manager is currently running");
10324
10325         /* Load Xcursors and/or cursorfont glyph cursors. */
10326         cursors_load();
10327
10328         xcb_aux_sync(conn);
10329
10330         setup_globals();
10331         setup_screens();
10332         setup_ewmh();
10333         setup_keys();
10334         setup_quirks();
10335         setup_spawn();
10336
10337         /* load config */
10338         for (i = 0; ; i++) {
10339                 conf[0] = '\0';
10340                 switch (i) {
10341                 case 0:
10342                         /* ~ */
10343                         snprintf(conf, sizeof conf, "%s/.%s",
10344                             pwd->pw_dir, SWM_CONF_FILE);
10345                         break;
10346                 case 1:
10347                         /* global */
10348                         snprintf(conf, sizeof conf, "/etc/%s",
10349                             SWM_CONF_FILE);
10350                         break;
10351                 case 2:
10352                         /* ~ compat */
10353                         snprintf(conf, sizeof conf, "%s/.%s",
10354                             pwd->pw_dir, SWM_CONF_FILE_OLD);
10355                         break;
10356                 case 3:
10357                         /* global compat */
10358                         snprintf(conf, sizeof conf, "/etc/%s",
10359                             SWM_CONF_FILE_OLD);
10360                         break;
10361                 default:
10362                         goto noconfig;
10363                 }
10364
10365                 if (strlen(conf) && stat(conf, &sb) != -1)
10366                         if (S_ISREG(sb.st_mode)) {
10367                                 cfile = conf;
10368                                 break;
10369                         }
10370         }
10371 noconfig:
10372
10373         /* load conf (if any) */
10374         if (cfile)
10375                 conf_load(cfile, SWM_CONF_DEFAULT);
10376
10377         validate_spawns();
10378
10379         /* grab existing windows (before we build the bars) */
10380         grab_windows();
10381
10382         if (getenv("SWM_STARTED") == NULL)
10383                 setenv("SWM_STARTED", "YES", 1);
10384
10385         /* setup all bars */
10386         num_screens = get_screen_count();
10387         for (i = 0; i < num_screens; i++)
10388                 TAILQ_FOREACH(r, &screens[i].rl, entry)
10389                         bar_setup(r);
10390
10391         grabkeys();
10392         stack();
10393         bar_draw();
10394
10395         xcb_ungrab_server(conn);
10396         xcb_flush(conn);
10397
10398         /* Update state of each newly mapped workspace. */
10399         for (i = 0; i < num_screens; i++)
10400                 TAILQ_FOREACH(r, &screens[i].rl, entry)
10401                         r->ws->state = SWM_WS_STATE_MAPPED;
10402
10403         rd_max = xfd > STDIN_FILENO ? xfd : STDIN_FILENO;
10404
10405         while (running) {
10406                 while ((evt = xcb_poll_for_event(conn))) {
10407                         if (!running)
10408                                 goto done;
10409                         event_handle(evt);
10410                         free(evt);
10411                 }
10412
10413                 /* If just (re)started, set default focus if needed. */
10414                 if (startup) {
10415                         startup = 0;
10416
10417                         if (focus_mode != SWM_FOCUS_FOLLOW) {
10418                                 r = TAILQ_FIRST(&screens[0].rl);
10419                                 if (r) {
10420                                         focus_region(r);
10421                                         focus_flush();
10422                                 }
10423                                 continue;
10424                         }
10425                 }
10426
10427                 FD_ZERO(&rd);
10428
10429                 if (bar_extra)
10430                         FD_SET(STDIN_FILENO, &rd);
10431
10432                 FD_SET(xfd, &rd);
10433                 tv.tv_sec = 1;
10434                 tv.tv_usec = 0;
10435                 num_readable = select(rd_max + 1, &rd, NULL, NULL, &tv);
10436                 if (num_readable == -1 && errno != EINTR) {
10437                         DNPRINTF(SWM_D_MISC, "select failed");
10438                 } else if (num_readable > 0 && FD_ISSET(STDIN_FILENO, &rd)) {
10439                         stdin_ready = 1;
10440                 }
10441
10442                 if (restart_wm)
10443                         restart(NULL, NULL);
10444
10445                 if (search_resp)
10446                         search_do_resp();
10447
10448                 if (!running)
10449                         goto done;
10450
10451                 if (stdin_ready) {
10452                         stdin_ready = 0;
10453                         bar_extra_update();
10454                 }
10455
10456                 bar_draw();
10457                 xcb_flush(conn);
10458         }
10459 done:
10460         shutdown_cleanup();
10461
10462         return (0);
10463 }