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