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