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) 2011-2012 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 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 : 0)
 247 #define YESNO(x)                ((x) ? "yes" : "no")
 248
 249 #define SWM_FOCUS_DEFAULT       (0)
 250 #define SWM_FOCUS_FOLLOW        (1)
 251 #define SWM_FOCUS_MANUAL        (2)
 252
 253 #define SWM_CK_NONE             0
 254 #define SWM_CK_ALL              0x7
 255 #define SWM_CK_FOCUS            0x1
 256 #define SWM_CK_POINTER          0x2
 257 #define SWM_CK_FALLBACK         0x4
 258
 259 #define SWM_CONF_DEFAULT        (0)
 260 #define SWM_CONF_KEYMAPPING     (1)
 261
 262 #ifndef SWM_LIB
 263 #define SWM_LIB                 "/usr/local/lib/libswmhack.so"
 264 #endif
 265
 266 char                    **start_argv;
 267 xcb_atom_t              a_state;
 268 xcb_atom_t              a_prot;
 269 xcb_atom_t              a_delete;
 270 xcb_atom_t              a_takefocus;
 271 xcb_atom_t              a_wmname;
 272 xcb_atom_t              a_netwmname;
 273 xcb_atom_t              a_utf8_string;
 274 xcb_atom_t              a_string;
 275 xcb_atom_t              a_swm_iconic;
 276 xcb_atom_t              a_swm_ws;
 277 volatile sig_atomic_t   running = 1;
 278 volatile sig_atomic_t   restart_wm = 0;
 279 xcb_timestamp_t         last_event_time = 0;
 280 int                     outputs = 0;
 281 int                     other_wm;
 282 int                     ss_enabled = 0;
 283 int                     xrandr_support;
 284 int                     xrandr_eventbase;
 285 unsigned int            numlockmask = 0;
 286
 287 Display                 *display;
 288 xcb_connection_t        *conn;
 289 xcb_key_symbols_t       *syms;
 290
 291 int                     cycle_empty = 0;
 292 int                     cycle_visible = 0;
 293 int                     term_width = 0;
 294 int                     font_adjusted = 0;
 295 unsigned int            mod_key = MODKEY;
 296
 297 /* dmenu search */
 298 struct swm_region       *search_r;
 299 int                     select_list_pipe[2];
 300 int                     select_resp_pipe[2];
 301 pid_t                   searchpid;
 302 volatile sig_atomic_t   search_resp;
 303 int                     search_resp_action;
 304
 305 struct search_window {
 306         TAILQ_ENTRY(search_window)      entry;
 307         int                             idx;
 308         struct ws_win                   *win;
 309         xcb_gcontext_t                  gc;
 310         xcb_window_t                    indicator;
 311 };
 312 TAILQ_HEAD(search_winlist, search_window);
 313 struct search_winlist                   search_wl;
 314
 315 /* search actions */
 316 enum {
 317         SWM_SEARCH_NONE,
 318         SWM_SEARCH_UNICONIFY,
 319         SWM_SEARCH_NAME_WORKSPACE,
 320         SWM_SEARCH_SEARCH_WORKSPACE,
 321         SWM_SEARCH_SEARCH_WINDOW
 322 };
 323
 324 #define SWM_STACK_TOP           (0)
 325 #define SWM_STACK_BOTTOM        (1)
 326 #define SWM_STACK_ABOVE         (2)
 327 #define SWM_STACK_BELOW         (3)
 328
 329 /* dialog windows */
 330 double                  dialog_ratio = 0.6;
 331 /* status bar */
 332 #define SWM_BAR_MAX             (256)
 333 #define SWM_BAR_JUSTIFY_LEFT    (0)
 334 #define SWM_BAR_JUSTIFY_CENTER  (1)
 335 #define SWM_BAR_JUSTIFY_RIGHT   (2)
 336 #define SWM_BAR_OFFSET          (4)
 337 #define SWM_BAR_FONTS           "-*-terminus-medium-*-*-*-12-*-*-*-*-*-*-*," \
 338                                 "-*-profont-*-*-*-*-12-*-*-*-*-*-*-*,"      \
 339                                 "-*-times-medium-r-*-*-12-*-*-*-*-*-*-*,"    \
 340                                 "-misc-fixed-medium-r-*-*-12-*-*-*-*-*-*-*,"  \
 341                                 "-*-*-*-r-*-*-*-*-*-*-*-*-*-*"
 342
 343 #ifdef X_HAVE_UTF8_STRING
 344 #define DRAWSTRING(x...)        Xutf8DrawString(x)
 345 #else
 346 #define DRAWSTRING(x...)        XmbDrawString(x)
 347 #endif
 348
 349 char            *bar_argv[] = { NULL, NULL };
 350 int              bar_pipe[2];
 351 unsigned char    bar_ext[SWM_BAR_MAX];
 352 char             bar_vertext[SWM_BAR_MAX];
 353 int              bar_version = 0;
 354 sig_atomic_t     bar_alarm = 0;
 355 int              bar_delay = 30;
 356 int              bar_enabled = 1;
 357 int              bar_border_width = 1;
 358 int              bar_at_bottom = 0;
 359 int              bar_extra = 1;
 360 int              bar_extra_running = 0;
 361 int              bar_verbose = 1;
 362 int              bar_height = 0;
 363 int              bar_justify = SWM_BAR_JUSTIFY_LEFT;
 364 char             *bar_format = NULL;
 365 int              stack_enabled = 1;
 366 int              clock_enabled = 1;
 367 int              urgent_enabled = 0;
 368 char            *clock_format = NULL;
 369 int              title_name_enabled = 0;
 370 int              title_class_enabled = 0;
 371 int              window_name_enabled = 0;
 372 int              focus_mode = SWM_FOCUS_DEFAULT;
 373 int              focus_close = SWM_STACK_BELOW;
 374 int              focus_close_wrap = 1;
 375 int              focus_default = SWM_STACK_TOP;
 376 int              spawn_position = SWM_STACK_TOP;
 377 int              disable_border = 0;
 378 int              border_width = 1;
 379 int              verbose_layout = 0;
 380 time_t           time_started;
 381 pid_t            bar_pid;
 382 XFontSet         bar_fs;
 383 XFontSetExtents *bar_fs_extents;
 384 XftFont         *bar_font;
 385 int              bar_font_legacy = 1;
 386 char            *bar_fonts;
 387 XftColor         bar_font_color;
 388 struct passwd   *pwd;
 389
 390 /* layout manager data */
 391 struct swm_geometry {
 392         int                     x;
 393         int                     y;
 394         int                     w;
 395         int                     h;
 396 };
 397
 398 struct swm_screen;
 399 struct workspace;
 400
 401 struct swm_bar {
 402         xcb_window_t            id;
 403         xcb_pixmap_t            buffer;
 404         struct swm_geometry     g;
 405 };
 406
 407 /* virtual "screens" */
 408 struct swm_region {
 409         TAILQ_ENTRY(swm_region) entry;
 410         struct swm_geometry     g;
 411         struct workspace        *ws;    /* current workspace on this region */
 412         struct workspace        *ws_prior; /* prior workspace on this region */
 413         struct swm_screen       *s;     /* screen idx */
 414         struct swm_bar          *bar;
 415 };
 416 TAILQ_HEAD(swm_region_list, swm_region);
 417
 418 struct ws_win {
 419         TAILQ_ENTRY(ws_win)     entry;
 420         xcb_window_t            id;
 421         xcb_window_t            transient;
 422         struct ws_win           *focus_child;   /* focus on child transient */
 423         struct swm_geometry     g;              /* current geometry */
 424         struct swm_geometry     g_float;        /* region coordinates */
 425         int                     g_floatvalid;   /* g_float geometry validity */
 426         int                     floatmaxed;     /* whether maxed by max_stack */
 427         int                     floating;
 428         int                     manual;
 429         int32_t                 mapped;
 430         int32_t                 iconic;
 431         int                     bordered;
 432         unsigned int            ewmh_flags;
 433         int                     font_size_boundary[SWM_MAX_FONT_STEPS];
 434         int                     font_steps;
 435         int                     last_inc;
 436         int                     can_delete;
 437         int                     take_focus;
 438         int                     java;
 439         unsigned long           quirks;
 440         struct workspace        *ws;    /* always valid */
 441         struct swm_screen       *s;     /* always valid, never changes */
 442         xcb_get_geometry_reply_t        *wa;
 443         xcb_size_hints_t        sh;
 444         xcb_icccm_get_wm_class_reply_t  ch;
 445         xcb_icccm_wm_hints_t    hints;
 446 };
 447 TAILQ_HEAD(ws_win_list, ws_win);
 448
 449 /* pid goo */
 450 struct pid_e {
 451         TAILQ_ENTRY(pid_e)      entry;
 452         pid_t                   pid;
 453         int                     ws;
 454 };
 455 TAILQ_HEAD(pid_list, pid_e);
 456 struct pid_list                 pidlist = TAILQ_HEAD_INITIALIZER(pidlist);
 457
 458 /* layout handlers */
 459 void    stack(void);
 460 void    vertical_config(struct workspace *, int);
 461 void    vertical_stack(struct workspace *, struct swm_geometry *);
 462 void    horizontal_config(struct workspace *, int);
 463 void    horizontal_stack(struct workspace *, struct swm_geometry *);
 464 void    max_stack(struct workspace *, struct swm_geometry *);
 465 void    plain_stacker(struct workspace *);
 466 void    fancy_stacker(struct workspace *);
 467
 468 struct layout {
 469         void            (*l_stack)(struct workspace *, struct swm_geometry *);
 470         void            (*l_config)(struct workspace *, int);
 471         u_int32_t       flags;
 472 #define SWM_L_FOCUSPREV         (1<<0)
 473 #define SWM_L_MAPONFOCUS        (1<<1)
 474         void            (*l_string)(struct workspace *);
 475 } layouts[] =  {
 476         /* stack,               configure */
 477         { vertical_stack,       vertical_config,        0,      plain_stacker },
 478         { horizontal_stack,     horizontal_config,      0,      plain_stacker },
 479         { max_stack,            NULL,
 480           SWM_L_MAPONFOCUS | SWM_L_FOCUSPREV,                   plain_stacker },
 481         { NULL,                 NULL,                   0,      NULL  },
 482 };
 483
 484 /* position of max_stack mode in the layouts array, index into layouts! */
 485 #define SWM_V_STACK             (0)
 486 #define SWM_H_STACK             (1)
 487 #define SWM_MAX_STACK           (2)
 488
 489 #define SWM_H_SLICE             (32)
 490 #define SWM_V_SLICE             (32)
 491
 492 /* define work spaces */
 493 struct workspace {
 494         int                     idx;            /* workspace index */
 495         char                    *name;          /* workspace name */
 496         int                     always_raise;   /* raise windows on focus */
 497         struct layout           *cur_layout;    /* current layout handlers */
 498         struct ws_win           *focus;         /* may be NULL */
 499         struct ws_win           *focus_prev;    /* may be NULL */
 500         struct ws_win           *focus_pending; /* may be NULL */
 501         struct swm_region       *r;             /* may be NULL */
 502         struct swm_region       *old_r;         /* may be NULL */
 503         struct ws_win_list      winlist;        /* list of windows in ws */
 504         struct ws_win_list      unmanagedlist;  /* list of dead windows in ws */
 505         char                    stacker[10];    /* display stacker and layout */
 506
 507         /* stacker state */
 508         struct {
 509                                 int horizontal_msize;
 510                                 int horizontal_mwin;
 511                                 int horizontal_stacks;
 512                                 int horizontal_flip;
 513                                 int vertical_msize;
 514                                 int vertical_mwin;
 515                                 int vertical_stacks;
 516                                 int vertical_flip;
 517         } l_state;
 518 };
 519
 520 enum {
 521         SWM_S_COLOR_BAR,
 522         SWM_S_COLOR_BAR_BORDER,
 523         SWM_S_COLOR_BAR_FONT,
 524         SWM_S_COLOR_FOCUS,
 525         SWM_S_COLOR_UNFOCUS,
 526         SWM_S_COLOR_MAX
 527 };
 528
 529 /* physical screen mapping */
 530 #define SWM_WS_MAX              (22)    /* hard limit */
 531 int             workspace_limit = 10;   /* soft limit */
 532
 533 struct swm_screen {
 534         int                     idx;    /* screen index */
 535         struct swm_region_list  rl;     /* list of regions on this screen */
 536         struct swm_region_list  orl;    /* list of old regions */
 537         xcb_window_t            root;
 538         struct workspace        ws[SWM_WS_MAX];
 539
 540         /* colors */
 541         struct {
 542                 uint32_t        pixel;
 543                 char            *name;
 544         } c[SWM_S_COLOR_MAX];
 545
 546         xcb_gcontext_t          bar_gc;
 547         GC                      bar_gc_legacy;
 548 };
 549 struct swm_screen       *screens;
 550
 551 /* args to functions */
 552 union arg {
 553         int                     id;
 554 #define SWM_ARG_ID_FOCUSNEXT    (0)
 555 #define SWM_ARG_ID_FOCUSPREV    (1)
 556 #define SWM_ARG_ID_FOCUSMAIN    (2)
 557 #define SWM_ARG_ID_SWAPNEXT     (10)
 558 #define SWM_ARG_ID_SWAPPREV     (11)
 559 #define SWM_ARG_ID_SWAPMAIN     (12)
 560 #define SWM_ARG_ID_MOVELAST     (13)
 561 #define SWM_ARG_ID_MASTERSHRINK (20)
 562 #define SWM_ARG_ID_MASTERGROW   (21)
 563 #define SWM_ARG_ID_MASTERADD    (22)
 564 #define SWM_ARG_ID_MASTERDEL    (23)
 565 #define SWM_ARG_ID_FLIPLAYOUT   (24)
 566 #define SWM_ARG_ID_STACKRESET   (30)
 567 #define SWM_ARG_ID_STACKINIT    (31)
 568 #define SWM_ARG_ID_CYCLEWS_UP   (40)
 569 #define SWM_ARG_ID_CYCLEWS_DOWN (41)
 570 #define SWM_ARG_ID_CYCLESC_UP   (42)
 571 #define SWM_ARG_ID_CYCLESC_DOWN (43)
 572 #define SWM_ARG_ID_CYCLEWS_UP_ALL       (44)
 573 #define SWM_ARG_ID_CYCLEWS_DOWN_ALL     (45)
 574 #define SWM_ARG_ID_STACKINC     (50)
 575 #define SWM_ARG_ID_STACKDEC     (51)
 576 #define SWM_ARG_ID_SS_ALL       (60)
 577 #define SWM_ARG_ID_SS_WINDOW    (61)
 578 #define SWM_ARG_ID_DONTCENTER   (70)
 579 #define SWM_ARG_ID_CENTER       (71)
 580 #define SWM_ARG_ID_KILLWINDOW   (80)
 581 #define SWM_ARG_ID_DELETEWINDOW (81)
 582 #define SWM_ARG_ID_WIDTHGROW    (90)
 583 #define SWM_ARG_ID_WIDTHSHRINK  (91)
 584 #define SWM_ARG_ID_HEIGHTGROW   (92)
 585 #define SWM_ARG_ID_HEIGHTSHRINK (93)
 586 #define SWM_ARG_ID_MOVEUP       (100)
 587 #define SWM_ARG_ID_MOVEDOWN     (101)
 588 #define SWM_ARG_ID_MOVELEFT     (102)
 589 #define SWM_ARG_ID_MOVERIGHT    (103)
 590         char                    **argv;
 591 };
 592
 593 /* quirks */
 594 struct quirk {
 595         TAILQ_ENTRY(quirk)      entry;
 596         char                    *class;
 597         char                    *name;
 598         unsigned long           quirk;
 599 #define SWM_Q_FLOAT             (1<<0)  /* float this window */
 600 #define SWM_Q_TRANSSZ           (1<<1)  /* transiend window size too small */
 601 #define SWM_Q_ANYWHERE          (1<<2)  /* don't position this window */
 602 #define SWM_Q_XTERM_FONTADJ     (1<<3)  /* adjust xterm fonts when resizing */
 603 #define SWM_Q_FULLSCREEN        (1<<4)  /* remove border */
 604 #define SWM_Q_FOCUSPREV         (1<<5)  /* focus on caller */
 605 };
 606 TAILQ_HEAD(quirk_list, quirk);
 607 struct quirk_list               quirks = TAILQ_HEAD_INITIALIZER(quirks);
 608
 609 /*
 610  * Supported EWMH hints should be added to
 611  * both the enum and the ewmh array
 612  */
 613 enum {
 614         _NET_ACTIVE_WINDOW,
 615         _NET_CLOSE_WINDOW,
 616         _NET_MOVERESIZE_WINDOW,
 617         _NET_WM_ACTION_ABOVE,
 618         _NET_WM_ACTION_CLOSE,
 619         _NET_WM_ACTION_FULLSCREEN,
 620         _NET_WM_ACTION_MOVE,
 621         _NET_WM_ACTION_RESIZE,
 622         _NET_WM_ALLOWED_ACTIONS,
 623         _NET_WM_NAME,
 624         _NET_WM_STATE,
 625         _NET_WM_STATE_ABOVE,
 626         _NET_WM_STATE_FULLSCREEN,
 627         _NET_WM_STATE_HIDDEN,
 628         _NET_WM_STATE_MAXIMIZED_HORZ,
 629         _NET_WM_STATE_MAXIMIZED_VERT,
 630         _NET_WM_STATE_SKIP_PAGER,
 631         _NET_WM_STATE_SKIP_TASKBAR,
 632         _NET_WM_WINDOW_TYPE,
 633         _NET_WM_WINDOW_TYPE_DIALOG,
 634         _NET_WM_WINDOW_TYPE_DOCK,
 635         _NET_WM_WINDOW_TYPE_NORMAL,
 636         _NET_WM_WINDOW_TYPE_SPLASH,
 637         _NET_WM_WINDOW_TYPE_TOOLBAR,
 638         _NET_WM_WINDOW_TYPE_UTILITY,
 639         _SWM_WM_STATE_MANUAL,
 640         SWM_EWMH_HINT_MAX
 641 };
 642
 643 struct ewmh_hint {
 644         char            *name;
 645         xcb_atom_t      atom;
 646 } ewmh[SWM_EWMH_HINT_MAX] =     {
 647     /* must be in same order as in the enum */
 648     {"_NET_ACTIVE_WINDOW", XCB_ATOM_NONE},
 649     {"_NET_CLOSE_WINDOW", XCB_ATOM_NONE},
 650     {"_NET_MOVERESIZE_WINDOW", XCB_ATOM_NONE},
 651     {"_NET_WM_ACTION_ABOVE", XCB_ATOM_NONE},
 652     {"_NET_WM_ACTION_CLOSE", XCB_ATOM_NONE},
 653     {"_NET_WM_ACTION_FULLSCREEN", XCB_ATOM_NONE},
 654     {"_NET_WM_ACTION_MOVE", XCB_ATOM_NONE},
 655     {"_NET_WM_ACTION_RESIZE", XCB_ATOM_NONE},
 656     {"_NET_WM_ALLOWED_ACTIONS", XCB_ATOM_NONE},
 657     {"_NET_WM_NAME", XCB_ATOM_NONE},
 658     {"_NET_WM_STATE", XCB_ATOM_NONE},
 659     {"_NET_WM_STATE_ABOVE", XCB_ATOM_NONE},
 660     {"_NET_WM_STATE_FULLSCREEN", XCB_ATOM_NONE},
 661     {"_NET_WM_STATE_HIDDEN", XCB_ATOM_NONE},
 662     {"_NET_WM_STATE_MAXIMIZED_HORZ", XCB_ATOM_NONE},
 663     {"_NET_WM_STATE_MAXIMIZED_VERT", XCB_ATOM_NONE},
 664     {"_NET_WM_STATE_SKIP_PAGER", XCB_ATOM_NONE},
 665     {"_NET_WM_STATE_SKIP_TASKBAR", XCB_ATOM_NONE},
 666     {"_NET_WM_WINDOW_TYPE", XCB_ATOM_NONE},
 667     {"_NET_WM_WINDOW_TYPE_DIALOG", XCB_ATOM_NONE},
 668     {"_NET_WM_WINDOW_TYPE_DOCK", XCB_ATOM_NONE},
 669     {"_NET_WM_WINDOW_TYPE_NORMAL", XCB_ATOM_NONE},
 670     {"_NET_WM_WINDOW_TYPE_SPLASH", XCB_ATOM_NONE},
 671     {"_NET_WM_WINDOW_TYPE_TOOLBAR", XCB_ATOM_NONE},
 672     {"_NET_WM_WINDOW_TYPE_UTILITY", XCB_ATOM_NONE},
 673     {"_SWM_WM_STATE_MANUAL", XCB_ATOM_NONE},
 674 };
 675
 676 /* Cursors */
 677 enum {
 678         XC_FLEUR,
 679         XC_LEFT_PTR,
 680         XC_BOTTOM_LEFT_CORNER,
 681         XC_BOTTOM_RIGHT_CORNER,
 682         XC_SIZING,
 683         XC_TOP_LEFT_CORNER,
 684         XC_TOP_RIGHT_CORNER,
 685         XC_MAX
 686 };
 687
 688 struct cursors {
 689         char            *name; /* Name used by Xcursor .*/
 690         uint8_t         cf_char; /* cursorfont index. */
 691         xcb_cursor_t    cid;
 692 } cursors[XC_MAX] =     {
 693         {"fleur", XC_fleur, XCB_CURSOR_NONE},
 694         {"left_ptr", XC_left_ptr, XCB_CURSOR_NONE},
 695         {"bottom_left_corner", XC_bottom_left_corner, XCB_CURSOR_NONE},
 696         {"bottom_right_corner", XC_bottom_right_corner, XCB_CURSOR_NONE},
 697         {"sizing", XC_sizing, XCB_CURSOR_NONE},
 698         {"top_left_corner", XC_top_left_corner, XCB_CURSOR_NONE},
 699         {"top_right_corner", XC_top_right_corner, XCB_CURSOR_NONE},
 700 };
 701
 702 /* spawn */
 703 struct spawn_prog {
 704         TAILQ_ENTRY(spawn_prog) entry;
 705         char                    *name;
 706         int                     argc;
 707         char                    **argv;
 708 };
 709 TAILQ_HEAD(spawn_list, spawn_prog);
 710 struct spawn_list               spawns = TAILQ_HEAD_INITIALIZER(spawns);
 711
 712 /* user/key callable function IDs */
 713 enum keyfuncid {
 714         KF_BAR_TOGGLE,
 715         KF_BUTTON2,
 716         KF_CYCLE_LAYOUT,
 717         KF_FLIP_LAYOUT,
 718         KF_FLOAT_TOGGLE,
 719         KF_FOCUS_MAIN,
 720         KF_FOCUS_NEXT,
 721         KF_FOCUS_PREV,
 722         KF_HEIGHT_GROW,
 723         KF_HEIGHT_SHRINK,
 724         KF_ICONIFY,
 725         KF_MASTER_SHRINK,
 726         KF_MASTER_GROW,
 727         KF_MASTER_ADD,
 728         KF_MASTER_DEL,
 729         KF_MOVE_DOWN,
 730         KF_MOVE_LEFT,
 731         KF_MOVE_RIGHT,
 732         KF_MOVE_UP,
 733         KF_MVWS_1,
 734         KF_MVWS_2,
 735         KF_MVWS_3,
 736         KF_MVWS_4,
 737         KF_MVWS_5,
 738         KF_MVWS_6,
 739         KF_MVWS_7,
 740         KF_MVWS_8,
 741         KF_MVWS_9,
 742         KF_MVWS_10,
 743         KF_MVWS_11,
 744         KF_MVWS_12,
 745         KF_MVWS_13,
 746         KF_MVWS_14,
 747         KF_MVWS_15,
 748         KF_MVWS_16,
 749         KF_MVWS_17,
 750         KF_MVWS_18,
 751         KF_MVWS_19,
 752         KF_MVWS_20,
 753         KF_MVWS_21,
 754         KF_MVWS_22,
 755         KF_NAME_WORKSPACE,
 756         KF_QUIT,
 757         KF_RAISE_TOGGLE,
 758         KF_RESTART,
 759         KF_SCREEN_NEXT,
 760         KF_SCREEN_PREV,
 761         KF_SEARCH_WIN,
 762         KF_SEARCH_WORKSPACE,
 763         KF_SPAWN_CUSTOM,
 764         KF_STACK_INC,
 765         KF_STACK_DEC,
 766         KF_STACK_RESET,
 767         KF_SWAP_MAIN,
 768         KF_SWAP_NEXT,
 769         KF_SWAP_PREV,
 770         KF_UNICONIFY,
 771         KF_VERSION,
 772         KF_WIDTH_GROW,
 773         KF_WIDTH_SHRINK,
 774         KF_WIND_DEL,
 775         KF_WIND_KILL,
 776         KF_WS_1,
 777         KF_WS_2,
 778         KF_WS_3,
 779         KF_WS_4,
 780         KF_WS_5,
 781         KF_WS_6,
 782         KF_WS_7,
 783         KF_WS_8,
 784         KF_WS_9,
 785         KF_WS_10,
 786         KF_WS_11,
 787         KF_WS_12,
 788         KF_WS_13,
 789         KF_WS_14,
 790         KF_WS_15,
 791         KF_WS_16,
 792         KF_WS_17,
 793         KF_WS_18,
 794         KF_WS_19,
 795         KF_WS_20,
 796         KF_WS_21,
 797         KF_WS_22,
 798         KF_WS_NEXT,
 799         KF_WS_NEXT_ALL,
 800         KF_WS_PREV,
 801         KF_WS_PREV_ALL,
 802         KF_WS_PRIOR,
 803         KF_DUMPWINS, /* MUST BE LAST */
 804         KF_INVALID
 805 };
 806
 807 struct key {
 808         RB_ENTRY(key)           entry;
 809         unsigned int            mod;
 810         KeySym                  keysym;
 811         enum keyfuncid          funcid;
 812         char                    *spawn_name;
 813 };
 814 RB_HEAD(key_tree, key);
 815
 816 /* function prototypes */
 817 void     adjust_font(struct ws_win *);
 818 void     bar_class_name(char *, size_t, struct swm_region *);
 819 void     bar_class_title_name(char *, size_t, struct swm_region *);
 820 void     bar_cleanup(struct swm_region *);
 821 void     bar_extra_stop(void);
 822 void     bar_fmt(const char *, char *, struct swm_region *, size_t);
 823 void     bar_fmt_expand(char *, size_t);
 824 void     bar_fmt_print(void);
 825 void     bar_print(struct swm_region *, const char *);
 826 void     bar_print_legacy(struct swm_region *, const char *);
 827 void     bar_refresh(void);
 828 void     bar_replace(char *, char *, struct swm_region *, size_t);
 829 void     bar_replace_pad(char *, int *, size_t);
 830 char *   bar_replace_seq(char *, char *, struct swm_region *, size_t *,
 831              size_t);
 832 void     bar_setup(struct swm_region *);
 833 void     bar_signal(int);
 834 void     bar_title_name(char *, size_t, struct swm_region *);
 835 void     bar_toggle(struct swm_region *, union arg *);
 836 void     bar_update(void);
 837 void     bar_urgent(char *, size_t);
 838 void     bar_window_float(char *, size_t, struct swm_region *);
 839 void     bar_window_name(char *, size_t, struct swm_region *);
 840 void     bar_workspace_name(char *, size_t, struct swm_region *);
 841 void     buttonpress(xcb_button_press_event_t *);
 842 void     check_conn(void);
 843 void     clear_keys(void);
 844 void     clientmessage(xcb_client_message_event_t *);
 845 void     client_msg(struct ws_win *, xcb_atom_t, xcb_timestamp_t);
 846 int      conf_load(const char *, int);
 847 void     configurenotify(xcb_configure_notify_event_t *);
 848 void     configurerequest(xcb_configure_request_event_t *);
 849 void     config_win(struct ws_win *, xcb_configure_request_event_t *);
 850 void     constrain_window(struct ws_win *, struct swm_region *, int);
 851 int      count_win(struct workspace *, int);
 852 void     cursors_cleanup(void);
 853 void     cursors_load(void);
 854 void     custom_region(char *);
 855 void     cyclescr(struct swm_region *, union arg *);
 856 void     cyclews(struct swm_region *, union arg *);
 857 void     cycle_layout(struct swm_region *, union arg *);
 858 void     destroynotify(xcb_destroy_notify_event_t *);
 859 void     dumpwins(struct swm_region *, union arg *);
 860 int      enable_wm(void);
 861 void     enternotify(xcb_enter_notify_event_t *);
 862 void     event_drain(uint8_t);
 863 void     event_error(xcb_generic_error_t *);
 864 void     event_handle(xcb_generic_event_t *);
 865 void     ewmh_autoquirk(struct ws_win *);
 866 void     ewmh_get_win_state(struct ws_win *);
 867 int      ewmh_set_win_fullscreen(struct ws_win *, int);
 868 void     ewmh_update_actions(struct ws_win *);
 869 void     ewmh_update_win_state(struct ws_win *, xcb_atom_t, long);
 870 char    *expand_tilde(const char *);
 871 void     expose(xcb_expose_event_t *);
 872 void     fake_keypress(struct ws_win *, xcb_keysym_t, uint16_t);
 873 struct pid_e    *find_pid(pid_t);
 874 struct ws_win   *find_unmanaged_window(xcb_window_t);
 875 struct ws_win   *find_window(xcb_window_t);
 876 void     floating_toggle(struct swm_region *, union arg *);
 877 int      floating_toggle_win(struct ws_win *);
 878 void     focus(struct swm_region *, union arg *);
 879 #ifdef SWM_DEBUG
 880 void     focusin(xcb_focus_in_event_t *);
 881 void     focusout(xcb_focus_out_event_t *);
 882 #endif
 883 void     focus_flush(void);
 884 void     focus_win(struct ws_win *);
 885 void     fontset_init(void);
 886 void     free_window(struct ws_win *);
 887 xcb_atom_t get_atom_from_string(const char *);
 888 #ifdef SWM_DEBUG
 889 char    *get_atom_name(xcb_atom_t);
 890 #endif
 891 struct ws_win   *get_focus_magic(struct ws_win *);
 892 struct ws_win   *get_focus_prev(struct ws_win *);
 893 #ifdef SWM_DEBUG
 894 char    *get_notify_detail_label(uint8_t);
 895 char    *get_notify_mode_label(uint8_t);
 896 #endif
 897 struct ws_win   *get_pointer_win(xcb_window_t);
 898 struct ws_win   *get_region_focus(struct swm_region *);
 899 xcb_screen_t    *get_screen(int);
 900 #ifdef SWM_DEBUG
 901 char    *get_stack_mode_name(uint8_t);
 902 #endif
 903 int32_t  get_swm_iconic(struct ws_win *);
 904 char    *get_win_name(xcb_window_t);
 905 int      get_ws_idx(xcb_window_t);
 906 uint32_t getstate(xcb_window_t);
 907 void     grabbuttons(struct ws_win *);
 908 void     grabkeys(void);
 909 void     grab_windows(void);
 910 void     iconify(struct swm_region *, union arg *);
 911 int      isxlfd(char *);
 912 void     keypress(xcb_key_press_event_t *);
 913 int      key_cmp(struct key *, struct key *);
 914 void     key_insert(unsigned int, KeySym, enum keyfuncid, const char *);
 915 struct key      *key_lookup(unsigned int, KeySym);
 916 void     key_remove(struct key *);
 917 void     key_replace(struct key *, unsigned int, KeySym, enum keyfuncid,
 918              const char *);
 919 void     kill_refs(struct ws_win *);
 920 #ifdef SWM_DEBUG
 921 void     leavenotify(xcb_leave_notify_event_t *);
 922 #endif
 923 void     load_float_geom(struct ws_win *, struct swm_region *);
 924 struct ws_win   *manage_window(xcb_window_t, uint16_t);
 925 void     map_window(struct ws_win *);
 926 void     mapnotify(xcb_map_notify_event_t *);
 927 void     mappingnotify(xcb_mapping_notify_event_t *);
 928 void     maprequest(xcb_map_request_event_t *);
 929 void     move(struct ws_win *, union arg *);
 930 void     move_step(struct swm_region *, union arg *);
 931 uint32_t name_to_pixel(const char *);
 932 void     name_workspace(struct swm_region *, union arg *);
 933 void     new_region(struct swm_screen *, int, int, int, int);
 934 int      parsekeys(char *, unsigned int, unsigned int *, KeySym *);
 935 int      parsequirks(char *, unsigned long *);
 936 int      parse_rgb(const char *, uint16_t *, uint16_t *, uint16_t *);
 937 void     pressbutton(struct swm_region *, union arg *);
 938 void     priorws(struct swm_region *, union arg *);
 939 #ifdef SWM_DEBUG
 940 void     print_win_geom(xcb_window_t);
 941 #endif
 942 void     propertynotify(xcb_property_notify_event_t *);
 943 void     quirk_insert(const char *, const char *, unsigned long);
 944 void     quirk_remove(struct quirk *);
 945 void     quirk_replace(struct quirk *, const char *, const char *,
 946              unsigned long);
 947 void     quit(struct swm_region *, union arg *);
 948 void     raise_toggle(struct swm_region *, union arg *);
 949 void     resize(struct ws_win *, union arg *);
 950 void     resize_step(struct swm_region *, union arg *);
 951 void     restart(struct swm_region *, union arg *);
 952 struct swm_region       *root_to_region(xcb_window_t, int);
 953 void     screenchange(xcb_randr_screen_change_notify_event_t *);
 954 void     scan_xrandr(int);
 955 void     search_do_resp(void);
 956 void     search_resp_name_workspace(const char *, unsigned long);
 957 void     search_resp_search_window(const char *);
 958 void     search_resp_search_workspace(const char *);
 959 void     search_resp_uniconify(const char *, unsigned long);
 960 void     search_win(struct swm_region *, union arg *);
 961 void     search_win_cleanup(void);
 962 void     search_workspace(struct swm_region *, union arg *);
 963 void     send_to_ws(struct swm_region *, union arg *);
 964 int      setautorun(char *, char *, int);
 965 int      setconfbinding(char *, char *, int);
 966 int      setconfcolor(char *, char *, int);
 967 int      setconfmodkey(char *, char *, int);
 968 int      setconfquirk(char *, char *, int);
 969 int      setconfregion(char *, char *, int);
 970 int      setconfspawn(char *, char *, int);
 971 int      setconfvalue(char *, char *, int);
 972 void     setkeybinding(unsigned int, KeySym, enum keyfuncid, const char *);
 973 int      setkeymapping(char *, char *, int);
 974 int      setlayout(char *, char *, int);
 975 void     setquirk(const char *, const char *, unsigned long);
 976 void     setscreencolor(char *, int, int);
 977 void     setspawn(const char *, const char *);
 978 void     setup_ewmh(void);
 979 void     setup_globals(void);
 980 void     setup_keys(void);
 981 void     setup_quirks(void);
 982 void     setup_screens(void);
 983 void     setup_spawn(void);
 984 void     set_child_transient(struct ws_win *, xcb_window_t *);
 985 void     set_swm_iconic(struct ws_win *, int);
 986 void     set_win_state(struct ws_win *, uint16_t);
 987 void     shutdown_cleanup(void);
 988 void     sighdlr(int);
 989 void     socket_setnonblock(int);
 990 void     sort_windows(struct ws_win_list *);
 991 void     spawn(int, union arg *, int);
 992 void     spawn_custom(struct swm_region *, union arg *, const char *);
 993 int      spawn_expand(struct swm_region *, union arg *, const char *, char ***);
 994 void     spawn_insert(const char *, const char *);
 995 void     spawn_remove(struct spawn_prog *);
 996 void     spawn_replace(struct spawn_prog *, const char *, const char *);
 997 void     spawn_select(struct swm_region *, union arg *, const char *, int *);
 998 void     stack_config(struct swm_region *, union arg *);
 999 void     stack_floater(struct ws_win *, struct swm_region *);
1000 void     stack_master(struct workspace *, struct swm_geometry *, int, int);
1001 void     store_float_geom(struct ws_win *, struct swm_region *);
1002 char *   strdupsafe(const char *);
1003 void     swapwin(struct swm_region *, union arg *);
1004 void     switchws(struct swm_region *, union arg *);
1005 void     teardown_ewmh(void);
1006 void     unfocus_win(struct ws_win *);
1007 void     uniconify(struct swm_region *, union arg *);
1008 void     unmanage_window(struct ws_win *);
1009 void     unmapnotify(xcb_unmap_notify_event_t *);
1010 void     unmap_all(void);
1011 void     unmap_window(struct ws_win *);
1012 void     updatenumlockmask(void);
1013 void     update_modkey(unsigned int);
1014 void     update_window(struct ws_win *);
1015 int      validate_win(struct ws_win *);
1016 int      validate_ws(struct workspace *);
1017 /*void   visibilitynotify(xcb_visibility_notify_event_t *);*/
1018 void     version(struct swm_region *, union arg *);
1019 pid_t    window_get_pid(xcb_window_t);
1020 void     wkill(struct swm_region *, union arg *);
1021 void     workaround(void);
1022 void     xft_init(struct swm_region *);
1023
1024 RB_PROTOTYPE(key_tree, key, entry, key_cmp);
1025 RB_GENERATE(key_tree, key, entry, key_cmp);
1026 struct key_tree                 keys;
1027
1028 void
1029 cursors_load(void)
1030 {
1031         xcb_font_t      cf = XCB_NONE;
1032         int             i;
1033
1034         for (i = 0; i < LENGTH(cursors); ++i) {
1035                 /* try to load Xcursor first. */
1036                 cursors[i].cid = XcursorLibraryLoadCursor(display,
1037                     cursors[i].name);
1038
1039                 /* fallback to cursorfont. */
1040                 if (cursors[i].cid == XCB_CURSOR_NONE) {
1041                         if (cf == XCB_NONE) {
1042                                 cf = xcb_generate_id(conn);
1043                                 xcb_open_font(conn, cf, strlen("cursor"),
1044                                     "cursor");
1045                         }
1046
1047                         cursors[i].cid = xcb_generate_id(conn);
1048                         xcb_create_glyph_cursor(conn, cursors[i].cid, cf, cf,
1049                             cursors[i].cf_char, cursors[i].cf_char + 1, 0, 0, 0,
1050                             0xffff, 0xffff, 0xffff);
1051
1052                 }
1053         }
1054
1055         if (cf != XCB_NONE)
1056                 xcb_close_font(conn, cf);
1057 }
1058
1059 void
1060 cursors_cleanup(void)
1061 {
1062         int     i;
1063         for (i = 0; i < LENGTH(cursors); ++i)
1064                 xcb_free_cursor(conn, cursors[i].cid);
1065 }
1066
1067 char *
1068 expand_tilde(const char *s)
1069 {
1070         struct passwd           *ppwd;
1071         int                     i, max;
1072         char                    *user;
1073         const char              *sc = s;
1074         char                    *result;
1075
1076         if (s == NULL)
1077                 errx(1, "expand_tilde: NULL string.");
1078
1079         if (s[0] != '~') {
1080                 result = strdup(sc);
1081                 goto out;
1082         }
1083
1084         ++s;
1085
1086         if ((max = sysconf(_SC_LOGIN_NAME_MAX)) == -1)
1087                 errx(1, "expand_tilde: sysconf");
1088
1089         if ((user = calloc(1, max + 1)) == NULL)
1090                 errx(1, "expand_tilde: calloc");
1091
1092         for (i = 0; s[i] != '/' && s[i] != '\0'; ++i)
1093                 user[i] = s[i];
1094         user[i] = '\0';
1095         s = &s[i];
1096
1097         ppwd = strlen(user) == 0 ? getpwuid(getuid()) : getpwnam(user);
1098         free(user);
1099
1100         if (ppwd == NULL)
1101                 result = strdup(sc);
1102         else
1103                 if (asprintf(&result, "%s%s", ppwd->pw_dir, s) == -1)
1104                         result = NULL;
1105 out:
1106         if (result == NULL)
1107                 errx(1, "expand_tilde: failed to allocate memory.");
1108
1109         return result;
1110 }
1111
1112 int
1113 parse_rgb(const char *rgb, uint16_t *rr, uint16_t *gg, uint16_t *bb)
1114 {
1115         unsigned int    tmpr, tmpg, tmpb;
1116
1117         if (sscanf(rgb, "rgb:%x/%x/%x", &tmpr, &tmpg, &tmpb) != 3)
1118                 return (-1);
1119
1120         *rr = RGB_8_TO_16(tmpr);
1121         *gg = RGB_8_TO_16(tmpg);
1122         *bb = RGB_8_TO_16(tmpb);
1123
1124         return (0);
1125 }
1126
1127 xcb_screen_t *
1128 get_screen(int screen)
1129 {
1130         const xcb_setup_t       *r;
1131         xcb_screen_iterator_t   iter;
1132
1133         if ((r = xcb_get_setup(conn)) == NULL) {
1134                 DNPRINTF(SWM_D_MISC, "get_screen: xcb_get_setup\n");
1135                 check_conn();
1136         }
1137
1138         iter = xcb_setup_roots_iterator(r);
1139         for (; iter.rem; --screen, xcb_screen_next(&iter))
1140                 if (screen == 0)
1141                         return (iter.data);
1142
1143         return (NULL);
1144 }
1145
1146 void
1147 focus_flush(void)
1148 {
1149         if (focus_mode == SWM_FOCUS_DEFAULT)
1150                 event_drain(XCB_ENTER_NOTIFY);
1151         else
1152                 xcb_flush(conn);
1153 }
1154
1155 xcb_atom_t
1156 get_atom_from_string(const char *str)
1157 {
1158         xcb_intern_atom_cookie_t        c;
1159         xcb_intern_atom_reply_t         *r;
1160         xcb_atom_t                      atom;
1161
1162         c = xcb_intern_atom(conn, 0, strlen(str), str);
1163         r = xcb_intern_atom_reply(conn, c, NULL);
1164         if (r) {
1165                 atom = r->atom;
1166                 free(r);
1167
1168                 return (atom);
1169         }
1170
1171         return (XCB_ATOM_NONE);
1172 }
1173
1174 void
1175 set_swm_iconic(struct ws_win *win, int newv)
1176 {
1177         int32_t                         v = newv;
1178
1179         win->iconic = newv;
1180
1181         if (newv)
1182                 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, win->id,
1183                     a_swm_iconic, XCB_ATOM_INTEGER, 32, 1, &v);
1184         else
1185                 xcb_delete_property(conn, win->id, a_swm_iconic);
1186 }
1187
1188 int32_t
1189 get_swm_iconic(struct ws_win *win)
1190 {
1191         int32_t                         v = 0;
1192         xcb_get_property_reply_t        *pr = NULL;
1193
1194         pr = xcb_get_property_reply(conn,
1195             xcb_get_property(conn, 0, win->id, a_swm_iconic,
1196             XCB_ATOM_INTEGER, 0, 1), NULL);
1197         if (!pr)
1198                 goto out;
1199         if (pr->type != XCB_ATOM_INTEGER || pr->format != 32)
1200                 goto out;
1201         v = *((int32_t *)xcb_get_property_value(pr));
1202 out:
1203         if (pr)
1204                 free(pr);
1205         return (v);
1206 }
1207
1208 void
1209 setup_ewmh(void)
1210 {
1211         xcb_atom_t                      sup_list;
1212         int                             i, j, num_screens;
1213
1214         sup_list = get_atom_from_string("_NET_SUPPORTED");
1215
1216         for (i = 0; i < LENGTH(ewmh); i++)
1217                 ewmh[i].atom = get_atom_from_string(ewmh[i].name);
1218
1219         num_screens = xcb_setup_roots_length(xcb_get_setup(conn));
1220         for (i = 0; i < num_screens; i++) {
1221                 /* Support check window will be created by workaround(). */
1222
1223                 /* Report supported atoms */
1224                 xcb_delete_property(conn, screens[i].root, sup_list);
1225                 for (j = 0; j < LENGTH(ewmh); j++)
1226                         xcb_change_property(conn, XCB_PROP_MODE_APPEND,
1227                             screens[i].root, sup_list, XCB_ATOM_ATOM, 32, 1,
1228                             &ewmh[j].atom);
1229         }
1230 }
1231
1232 void
1233 teardown_ewmh(void)
1234 {
1235         int                             i, num_screens;
1236         xcb_atom_t                      sup_check, sup_list;
1237         xcb_window_t                    id;
1238         xcb_get_property_cookie_t       pc;
1239         xcb_get_property_reply_t        *pr;
1240
1241         sup_check = get_atom_from_string("_NET_SUPPORTING_WM_CHECK");
1242         sup_list = get_atom_from_string("_NET_SUPPORTED");
1243         num_screens = xcb_setup_roots_length(xcb_get_setup(conn));
1244
1245         for (i = 0; i < num_screens; i++) {
1246                 /* Get the support check window and destroy it */
1247                 pc = xcb_get_property(conn, 0, screens[i].root, sup_check,
1248                     XCB_ATOM_WINDOW, 0, 1);
1249                 pr = xcb_get_property_reply(conn, pc, NULL);
1250                 if (!pr)
1251                         continue;
1252                 if (pr->format == sup_check) {
1253                         id = *((xcb_window_t *)xcb_get_property_value(pr));
1254
1255                         xcb_destroy_window(conn, id);
1256                         xcb_delete_property(conn, screens[i].root, sup_check);
1257                         xcb_delete_property(conn, screens[i].root, sup_list);
1258                 }
1259                 free(pr);
1260         }
1261 }
1262
1263 void
1264 ewmh_autoquirk(struct ws_win *win)
1265 {
1266         uint32_t                i, n;
1267         xcb_atom_t              *type;
1268         xcb_get_property_cookie_t       c;
1269         xcb_get_property_reply_t        *r;
1270
1271         c = xcb_get_property(conn, 0, win->id,
1272             ewmh[_NET_WM_WINDOW_TYPE].atom, XCB_ATOM_ATOM, 0, UINT32_MAX);
1273         r = xcb_get_property_reply(conn, c, NULL);
1274         if (!r)
1275                 return;
1276
1277         n = xcb_get_property_value_length(r);
1278         type = xcb_get_property_value(r);
1279
1280         for (i = 0; i < n; i++) {
1281                 if (type[i] == ewmh[_NET_WM_WINDOW_TYPE_NORMAL].atom)
1282                         break;
1283                 if (type[i] == ewmh[_NET_WM_WINDOW_TYPE_DOCK].atom ||
1284                     type[i] == ewmh[_NET_WM_WINDOW_TYPE_TOOLBAR].atom ||
1285                     type[i] == ewmh[_NET_WM_WINDOW_TYPE_UTILITY].atom) {
1286                         win->floating = 1;
1287                         win->quirks = SWM_Q_FLOAT | SWM_Q_ANYWHERE;
1288                         break;
1289                 }
1290                 if (type[i] == ewmh[_NET_WM_WINDOW_TYPE_SPLASH].atom ||
1291                     type[i] == ewmh[_NET_WM_WINDOW_TYPE_DIALOG].atom) {
1292                         win->floating = 1;
1293                         win->quirks = SWM_Q_FLOAT;
1294                         break;
1295                 }
1296         }
1297         free(r);
1298 }
1299
1300 #define SWM_EWMH_ACTION_COUNT_MAX       (6)
1301 #define EWMH_F_FULLSCREEN               (1<<0)
1302 #define EWMH_F_ABOVE                    (1<<1)
1303 #define EWMH_F_HIDDEN                   (1<<2)
1304 #define EWMH_F_SKIP_PAGER               (1<<3)
1305 #define EWMH_F_SKIP_TASKBAR             (1<<4)
1306 #define SWM_F_MANUAL                    (1<<5)
1307
1308 int
1309 ewmh_set_win_fullscreen(struct ws_win *win, int fs)
1310 {
1311         if (!win->ws->r)
1312                 return (0);
1313
1314         if (!win->floating)
1315                 return (0);
1316
1317         DNPRINTF(SWM_D_MISC, "ewmh_set_win_fullscreen: window: 0x%x, "
1318             "fullscreen %s\n", win->id, YESNO(fs));
1319
1320         if (fs) {
1321                 if (!win->g_floatvalid)
1322                         store_float_geom(win, win->ws->r);
1323
1324                 win->g = win->ws->r->g;
1325                 win->bordered = 0;
1326         } else {
1327                 load_float_geom(win, win->ws->r);
1328         }
1329
1330         return (1);
1331 }
1332
1333 void
1334 ewmh_update_actions(struct ws_win *win)
1335 {
1336         xcb_atom_t              actions[SWM_EWMH_ACTION_COUNT_MAX];
1337         int                     n = 0;
1338
1339         if (win == NULL)
1340                 return;
1341
1342         actions[n++] = ewmh[_NET_WM_ACTION_CLOSE].atom;
1343
1344         if (win->floating) {
1345                 actions[n++] = ewmh[_NET_WM_ACTION_MOVE].atom;
1346                 actions[n++] = ewmh[_NET_WM_ACTION_RESIZE].atom;
1347                 actions[n++] = ewmh[_NET_WM_ACTION_ABOVE].atom;
1348         }
1349
1350         xcb_change_property(conn, XCB_PROP_MODE_REPLACE, win->id,
1351             ewmh[_NET_WM_ALLOWED_ACTIONS].atom, XCB_ATOM_ATOM, 32, 1, actions);
1352 }
1353
1354 #define _NET_WM_STATE_REMOVE    0    /* remove/unset property */
1355 #define _NET_WM_STATE_ADD       1    /* add/set property */
1356 #define _NET_WM_STATE_TOGGLE    2    /* toggle property */
1357
1358 void
1359 ewmh_update_win_state(struct ws_win *win, xcb_atom_t state, long action)
1360 {
1361         unsigned int            mask = 0;
1362         unsigned int            changed = 0;
1363         unsigned int            orig_flags;
1364
1365         if (win == NULL)
1366                 return;
1367
1368         DNPRINTF(SWM_D_PROP, "ewmh_update_win_state: window: 0x%x, state: %ld, "
1369             "action: %ld\n", win->id, (unsigned long)state, action);
1370
1371         if (state == ewmh[_NET_WM_STATE_FULLSCREEN].atom)
1372                 mask = EWMH_F_FULLSCREEN;
1373         else if (state == ewmh[_NET_WM_STATE_ABOVE].atom)
1374                 mask = EWMH_F_ABOVE;
1375         else if (state == ewmh[_SWM_WM_STATE_MANUAL].atom)
1376                 mask = SWM_F_MANUAL;
1377         else if (state == ewmh[_NET_WM_STATE_SKIP_PAGER].atom)
1378                 mask = EWMH_F_SKIP_PAGER;
1379         else if (state == ewmh[_NET_WM_STATE_SKIP_TASKBAR].atom)
1380                 mask = EWMH_F_SKIP_TASKBAR;
1381
1382         orig_flags = win->ewmh_flags;
1383
1384         switch (action) {
1385         case _NET_WM_STATE_REMOVE:
1386                 win->ewmh_flags &= ~mask;
1387                 break;
1388         case _NET_WM_STATE_ADD:
1389                 win->ewmh_flags |= mask;
1390                 break;
1391         case _NET_WM_STATE_TOGGLE:
1392                 win->ewmh_flags ^= mask;
1393                 break;
1394         }
1395
1396         changed = (win->ewmh_flags & mask) ^ (orig_flags & mask) ? 1 : 0;
1397
1398         if (state == ewmh[_NET_WM_STATE_ABOVE].atom) {
1399                 if (changed && !floating_toggle_win(win))
1400                                 win->ewmh_flags = orig_flags; /* revert */
1401         } else if (state == ewmh[_SWM_WM_STATE_MANUAL].atom) {
1402                 if (changed)
1403                         win->manual = (win->ewmh_flags & SWM_F_MANUAL) != 0;
1404         } else if (state == ewmh[_NET_WM_STATE_FULLSCREEN].atom) {
1405                 if (changed && !ewmh_set_win_fullscreen(win,
1406                             win->ewmh_flags & EWMH_F_FULLSCREEN))
1407                                 win->ewmh_flags = orig_flags; /* revert */
1408         }
1409
1410         xcb_delete_property(conn, win->id, ewmh[_NET_WM_STATE].atom);
1411
1412         if (win->ewmh_flags & EWMH_F_FULLSCREEN)
1413                 xcb_change_property(conn, XCB_PROP_MODE_APPEND, win->id,
1414                     ewmh[_NET_WM_STATE].atom, XCB_ATOM_ATOM, 32, 1,
1415                     &ewmh[_NET_WM_STATE_FULLSCREEN].atom);
1416         else if (win->ewmh_flags & EWMH_F_SKIP_PAGER)
1417                 xcb_change_property(conn, XCB_PROP_MODE_APPEND, win->id,
1418                     ewmh[_NET_WM_STATE].atom, XCB_ATOM_ATOM, 32, 1,
1419                     &ewmh[_NET_WM_STATE_SKIP_PAGER].atom);
1420         else if (win->ewmh_flags & EWMH_F_SKIP_TASKBAR)
1421                 xcb_change_property(conn, XCB_PROP_MODE_APPEND, win->id,
1422                     ewmh[_NET_WM_STATE].atom, XCB_ATOM_ATOM, 32, 1,
1423                     &ewmh[_NET_WM_STATE_SKIP_TASKBAR].atom);
1424         else if (win->ewmh_flags & EWMH_F_ABOVE)
1425                 xcb_change_property(conn, XCB_PROP_MODE_APPEND, win->id,
1426                     ewmh[_NET_WM_STATE].atom, XCB_ATOM_ATOM, 32, 1,
1427                     &ewmh[_NET_WM_STATE_ABOVE].atom);
1428         else if (win->ewmh_flags & SWM_F_MANUAL)
1429                 xcb_change_property(conn, XCB_PROP_MODE_APPEND, win->id,
1430                     ewmh[_NET_WM_STATE].atom, XCB_ATOM_ATOM, 32, 1,
1431                     &ewmh[_SWM_WM_STATE_MANUAL].atom);
1432 }
1433
1434 void
1435 ewmh_get_win_state(struct ws_win *win)
1436 {
1437         xcb_atom_t                      *states;
1438         xcb_get_property_cookie_t       c;
1439         xcb_get_property_reply_t        *r;
1440         int                             i, n;
1441
1442         if (win == NULL)
1443                 return;
1444
1445         win->ewmh_flags = 0;
1446         if (win->floating)
1447                 win->ewmh_flags |= EWMH_F_ABOVE;
1448         if (win->manual)
1449                 win->ewmh_flags |= SWM_F_MANUAL;
1450
1451         c = xcb_get_property(conn, 0, win->id, ewmh[_NET_WM_STATE].atom,
1452             XCB_ATOM_ATOM, 0, UINT32_MAX);
1453         r = xcb_get_property_reply(conn, c, NULL);
1454         if (!r)
1455                 return;
1456
1457         states = xcb_get_property_value(r);
1458         n = xcb_get_property_value_length(r);
1459
1460         for (i = 0; i < n; i++)
1461                 ewmh_update_win_state(win, states[i], _NET_WM_STATE_ADD);
1462
1463         free(r);
1464 }
1465
1466 /* events */
1467 #ifdef SWM_DEBUG
1468 void
1469 dumpwins(struct swm_region *r, union arg *args)
1470 {
1471         struct ws_win                           *win;
1472         uint32_t                                state;
1473         xcb_get_window_attributes_cookie_t      c;
1474         xcb_get_window_attributes_reply_t       *wa;
1475
1476         /* suppress unused warning since var is needed */
1477         (void)args;
1478
1479         if (r->ws == NULL) {
1480                 warnx("dumpwins: invalid workspace");
1481                 return;
1482         }
1483
1484         warnx("=== managed window list ws %02d ===", r->ws->idx);
1485         TAILQ_FOREACH(win, &r->ws->winlist, entry) {
1486                 state = getstate(win->id);
1487                 c = xcb_get_window_attributes(conn, win->id);
1488                 wa = xcb_get_window_attributes_reply(conn, c, NULL);
1489                 if (wa) {
1490                         warnx("window: 0x%x, map_state: %d, state: %u, "
1491                             "transient: 0x%x", win->id, wa->map_state,
1492                             state, win->transient);
1493                         free(wa);
1494                 } else
1495                         warnx("window: 0x%x, failed xcb_get_window_attributes",
1496                             win->id);
1497         }
1498
1499         warnx("===== unmanaged window list =====");
1500         TAILQ_FOREACH(win, &r->ws->unmanagedlist, entry) {
1501                 state = getstate(win->id);
1502                 c = xcb_get_window_attributes(conn, win->id);
1503                 wa = xcb_get_window_attributes_reply(conn, c, NULL);
1504                 if (wa) {
1505                         warnx("window: 0x%x, map_state: %d, state: %u, "
1506                             "transient: 0x%x", win->id, wa->map_state,
1507                             state, win->transient);
1508                         free(wa);
1509                 } else
1510                         warnx("window: 0x%x, failed xcb_get_window_attributes",
1511                             win->id);
1512         }
1513
1514         warnx("=================================");
1515 }
1516 #else
1517 void
1518 dumpwins(struct swm_region *r, union arg *s)
1519 {
1520         (void)r;
1521         (void)s;
1522 }
1523 #endif /* SWM_DEBUG */
1524
1525 void
1526 sighdlr(int sig)
1527 {
1528         int                     saved_errno, status;
1529         pid_t                   pid;
1530
1531         saved_errno = errno;
1532
1533         switch (sig) {
1534         case SIGCHLD:
1535                 while ((pid = waitpid(WAIT_ANY, &status, WNOHANG)) != 0) {
1536                         if (pid == -1) {
1537                                 if (errno == EINTR)
1538                                         continue;
1539 #ifdef SWM_DEBUG
1540                                 if (errno != ECHILD)
1541                                         warn("sighdlr: waitpid");
1542 #endif /* SWM_DEBUG */
1543                                 break;
1544                         }
1545                         if (pid == searchpid)
1546                                 search_resp = 1;
1547
1548 #ifdef SWM_DEBUG
1549                         if (WIFEXITED(status)) {
1550                                 if (WEXITSTATUS(status) != 0)
1551                                         warnx("sighdlr: child exit status: %d",
1552                                             WEXITSTATUS(status));
1553                         } else
1554                                 warnx("sighdlr: child is terminated "
1555                                     "abnormally");
1556 #endif /* SWM_DEBUG */
1557                 }
1558                 break;
1559
1560         case SIGHUP:
1561                 restart_wm = 1;
1562                 break;
1563         case SIGINT:
1564         case SIGTERM:
1565         case SIGQUIT:
1566                 running = 0;
1567                 break;
1568         }
1569
1570         errno = saved_errno;
1571 }
1572
1573 struct pid_e *
1574 find_pid(pid_t pid)
1575 {
1576         struct pid_e            *p = NULL;
1577
1578         DNPRINTF(SWM_D_MISC, "find_pid: %d\n", pid);
1579
1580         if (pid == 0)
1581                 return (NULL);
1582
1583         TAILQ_FOREACH(p, &pidlist, entry) {
1584                 if (p->pid == pid)
1585                         return (p);
1586         }
1587
1588         return (NULL);
1589 }
1590
1591 uint32_t
1592 name_to_pixel(const char *colorname)
1593 {
1594         uint32_t                        result = 0;
1595         char                            cname[32] = "#";
1596         xcb_screen_t                    *screen;
1597         xcb_colormap_t                  cmap;
1598         xcb_alloc_color_reply_t         *cr;
1599         xcb_alloc_named_color_reply_t   *nr;
1600         uint16_t                        rr, gg, bb;
1601
1602         screen = xcb_setup_roots_iterator(xcb_get_setup(conn)).data;
1603         cmap = screen->default_colormap;
1604
1605         /* color is in format rgb://rr/gg/bb */
1606         if (strncmp(colorname, "rgb:", 4) == 0) {
1607                 if (parse_rgb(colorname, &rr, &gg, &bb) == -1)
1608                         warnx("could not parse rgb %s", colorname);
1609                 else {
1610                         cr = xcb_alloc_color_reply(conn,
1611                             xcb_alloc_color(conn, cmap, rr, gg, bb),
1612                             NULL);
1613                         if (cr) {
1614                                 result = cr->pixel;
1615                                 free(cr);
1616                         } else
1617                                 warnx("color '%s' not found", colorname);
1618                 }
1619         } else {
1620                 nr = xcb_alloc_named_color_reply(conn,
1621                         xcb_alloc_named_color(conn, cmap, strlen(colorname),
1622                             colorname), NULL);
1623                 if (!nr) {
1624                         strlcat(cname, colorname + 2, sizeof cname - 1);
1625                         nr = xcb_alloc_named_color_reply(conn,
1626                             xcb_alloc_named_color(conn, cmap, strlen(cname),
1627                             cname), NULL);
1628                 }
1629                 if (nr) {
1630                         result = nr->pixel;
1631                         free(nr);
1632                 } else
1633                         warnx("color '%s' not found", colorname);
1634         }
1635
1636         return (result);
1637 }
1638
1639 void
1640 setscreencolor(char *val, int i, int c)
1641 {
1642         int     num_screens;
1643
1644         num_screens = xcb_setup_roots_length(xcb_get_setup(conn));
1645         if (i > 0 && i <= num_screens) {
1646                 screens[i - 1].c[c].pixel = name_to_pixel(val);
1647                 free(screens[i - 1].c[c].name);
1648                 if ((screens[i - 1].c[c].name = strdup(val)) == NULL)
1649                         err(1, "strdup");
1650         } else if (i == -1) {
1651                 for (i = 0; i < num_screens; i++) {
1652                         screens[i].c[c].pixel = name_to_pixel(val);
1653                         free(screens[i].c[c].name);
1654                         if ((screens[i].c[c].name = strdup(val)) == NULL)
1655                                 err(1, "strdup");
1656                 }
1657         } else
1658                 errx(1, "invalid screen index: %d out of bounds (maximum %d)",
1659                     i, num_screens);
1660 }
1661
1662 void
1663 fancy_stacker(struct workspace *ws)
1664 {
1665         strlcpy(ws->stacker, "[   ]", sizeof ws->stacker);
1666         if (ws->cur_layout->l_stack == vertical_stack)
1667                 snprintf(ws->stacker, sizeof ws->stacker,
1668                     ws->l_state.vertical_flip ? "[%d>%d]" : "[%d|%d]",
1669                     ws->l_state.vertical_mwin, ws->l_state.vertical_stacks);
1670         if (ws->cur_layout->l_stack == horizontal_stack)
1671                 snprintf(ws->stacker, sizeof ws->stacker,
1672                     ws->l_state.horizontal_flip ? "[%dv%d]" : "[%d-%d]",
1673                     ws->l_state.horizontal_mwin, ws->l_state.horizontal_stacks);
1674 }
1675
1676 void
1677 plain_stacker(struct workspace *ws)
1678 {
1679         strlcpy(ws->stacker, "[ ]", sizeof ws->stacker);
1680         if (ws->cur_layout->l_stack == vertical_stack)
1681                 strlcpy(ws->stacker, ws->l_state.vertical_flip ? "[>]" : "[|]",
1682                     sizeof ws->stacker);
1683         if (ws->cur_layout->l_stack == horizontal_stack)
1684                 strlcpy(ws->stacker, ws->l_state.horizontal_flip ? "[v]" : "[-]",
1685                     sizeof ws->stacker);
1686 }
1687
1688 void
1689 custom_region(char *val)
1690 {
1691         unsigned int                    x, y, w, h;
1692         int                             sidx, num_screens;
1693         xcb_screen_t                    *screen;
1694
1695         num_screens = xcb_setup_roots_length(xcb_get_setup(conn));
1696         if (sscanf(val, "screen[%d]:%ux%u+%u+%u", &sidx, &w, &h, &x, &y) != 5)
1697                 errx(1, "invalid custom region, "
1698                     "should be 'screen[<n>]:<n>x<n>+<n>+<n>");
1699         if (sidx < 1 || sidx > num_screens)
1700                 errx(1, "invalid screen index: %d out of bounds (maximum %d)",
1701                     sidx, num_screens);
1702         sidx--;
1703
1704         if ((screen = get_screen(sidx)) == NULL)
1705                 errx(1, "ERROR: can't get screen %d.", sidx);
1706
1707         if (w < 1 || h < 1)
1708                 errx(1, "region %ux%u+%u+%u too small", w, h, x, y);
1709
1710         if (x > screen->width_in_pixels ||
1711             y > screen->height_in_pixels ||
1712             w + x > screen->width_in_pixels ||
1713             h + y > screen->height_in_pixels) {
1714                 warnx("ignoring region %ux%u+%u+%u - not within screen "
1715                     "boundaries (%ux%u)", w, h, x, y,
1716                     screen->width_in_pixels, screen->height_in_pixels);
1717                 return;
1718         }
1719
1720         new_region(&screens[sidx], x, y, w, h);
1721 }
1722
1723 void
1724 socket_setnonblock(int fd)
1725 {
1726         int                     flags;
1727
1728         if ((flags = fcntl(fd, F_GETFL, 0)) == -1)
1729                 err(1, "fcntl F_GETFL");
1730         flags |= O_NONBLOCK;
1731         if ((flags = fcntl(fd, F_SETFL, flags)) == -1)
1732                 err(1, "fcntl F_SETFL");
1733 }
1734
1735 void
1736 bar_print_legacy(struct swm_region *r, const char *s)
1737 {
1738         xcb_rectangle_t         rect;
1739         uint32_t                gcv[1];
1740         XGCValues               gcvd;
1741         int                     x = 0;
1742         size_t                  len;
1743         XRectangle              ibox, lbox;
1744         GC                      draw;
1745
1746         len = strlen(s);
1747         XmbTextExtents(bar_fs, s, len, &ibox, &lbox);
1748
1749         switch (bar_justify) {
1750         case SWM_BAR_JUSTIFY_LEFT:
1751                 x = SWM_BAR_OFFSET;
1752                 break;
1753         case SWM_BAR_JUSTIFY_CENTER:
1754                 x = (WIDTH(r) - lbox.width) / 2;
1755                 break;
1756         case SWM_BAR_JUSTIFY_RIGHT:
1757                 x = WIDTH(r) - lbox.width - SWM_BAR_OFFSET;
1758                 break;
1759         }
1760
1761         if (x < SWM_BAR_OFFSET)
1762                 x = SWM_BAR_OFFSET;
1763
1764         rect.x = 0;
1765         rect.y = 0;
1766         rect.width = WIDTH(r->bar);
1767         rect.height = HEIGHT(r->bar);
1768
1769         /* clear back buffer */
1770         gcv[0] = r->s->c[SWM_S_COLOR_BAR].pixel;
1771         xcb_change_gc(conn, r->s->bar_gc, XCB_GC_FOREGROUND, gcv);
1772         xcb_poly_fill_rectangle(conn, r->bar->buffer, r->s->bar_gc, 1, &rect);
1773
1774         /* draw back buffer */
1775         gcvd.graphics_exposures = 0;
1776         draw = XCreateGC(display, r->bar->buffer, GCGraphicsExposures, &gcvd);
1777         XSetForeground(display, draw, r->s->c[SWM_S_COLOR_BAR_FONT].pixel);
1778         DRAWSTRING(display, r->bar->buffer, bar_fs, draw,
1779             x, (bar_fs_extents->max_logical_extent.height - lbox.height) / 2 -
1780             lbox.y, s, len);
1781         XFreeGC(display, draw);
1782
1783         /* blt */
1784         xcb_copy_area(conn, r->bar->buffer, r->bar->id, r->s->bar_gc, 0, 0,
1785             0, 0, WIDTH(r->bar), HEIGHT(r->bar));
1786 }
1787
1788 void
1789 bar_print(struct swm_region *r, const char *s)
1790 {
1791         size_t                          len;
1792         xcb_rectangle_t                 rect;
1793         uint32_t                        gcv[1];
1794         int32_t                         x = 0;
1795         XGlyphInfo                      info;
1796         XftDraw                         *draw;
1797
1798         len = strlen(s);
1799
1800         XftTextExtentsUtf8(display, bar_font, (FcChar8 *)s, len, &info);
1801
1802         switch (bar_justify) {
1803         case SWM_BAR_JUSTIFY_LEFT:
1804                 x = SWM_BAR_OFFSET;
1805                 break;
1806         case SWM_BAR_JUSTIFY_CENTER:
1807                 x = (WIDTH(r) - info.width) / 2;
1808                 break;
1809         case SWM_BAR_JUSTIFY_RIGHT:
1810                 x = WIDTH(r) - info.width - SWM_BAR_OFFSET;
1811                 break;
1812         }
1813
1814         if (x < SWM_BAR_OFFSET)
1815                 x = SWM_BAR_OFFSET;
1816
1817         rect.x = 0;
1818         rect.y = 0;
1819         rect.width = WIDTH(r->bar);
1820         rect.height = HEIGHT(r->bar);
1821
1822         /* clear back buffer */
1823         gcv[0] = r->s->c[SWM_S_COLOR_BAR].pixel;
1824         xcb_change_gc(conn, r->s->bar_gc, XCB_GC_FOREGROUND, gcv);
1825         xcb_poly_fill_rectangle(conn, r->bar->buffer, r->s->bar_gc, 1, &rect);
1826
1827         /* draw back buffer */
1828         draw = XftDrawCreate(display, r->bar->buffer,
1829             DefaultVisual(display, r->s->idx),
1830             DefaultColormap(display, r->s->idx));
1831
1832         XftDrawStringUtf8(draw, &bar_font_color, bar_font, x,
1833             (HEIGHT(r->bar) + bar_font->height) / 2 - bar_font->descent,
1834             (FcChar8 *)s, len);
1835
1836         XftDrawDestroy(draw);
1837
1838         /* blt */
1839         xcb_copy_area(conn, r->bar->buffer, r->bar->id, r->s->bar_gc, 0, 0,
1840             0, 0, WIDTH(r->bar), HEIGHT(r->bar));
1841 }
1842
1843 void
1844 bar_extra_stop(void)
1845 {
1846         if (bar_pipe[0]) {
1847                 close(bar_pipe[0]);
1848                 bzero(bar_pipe, sizeof bar_pipe);
1849         }
1850         if (bar_pid) {
1851                 kill(bar_pid, SIGTERM);
1852                 bar_pid = 0;
1853         }
1854         strlcpy((char *)bar_ext, "", sizeof bar_ext);
1855         bar_extra = 0;
1856 }
1857
1858 void
1859 bar_class_name(char *s, size_t sz, struct swm_region *r)
1860 {
1861         if (r == NULL || r->ws == NULL || r->ws->focus == NULL)
1862                 return;
1863         if (r->ws->focus->ch.class_name != NULL)
1864                 strlcat(s, r->ws->focus->ch.class_name, sz);
1865 }
1866
1867 void
1868 bar_title_name(char *s, size_t sz, struct swm_region *r)
1869 {
1870         if (r == NULL || r->ws == NULL || r->ws->focus == NULL)
1871                 return;
1872         if (r->ws->focus->ch.instance_name != NULL)
1873                 strlcat(s, r->ws->focus->ch.instance_name, sz);
1874 }
1875
1876 void
1877 bar_class_title_name(char *s, size_t sz, struct swm_region *r)
1878 {
1879         if (r == NULL || r->ws == NULL || r->ws->focus == NULL)
1880                 return;
1881
1882         bar_class_name(s, sz, r);
1883         strlcat(s, ":", sz);
1884         bar_title_name(s, sz, r);
1885 }
1886
1887 void
1888 bar_window_float(char *s, size_t sz, struct swm_region *r)
1889 {
1890         if (r == NULL || r ->ws == NULL || r->ws->focus == NULL)
1891                 return;
1892         if (r->ws->focus->floating)
1893                 strlcat(s, "(f)", sz);
1894 }
1895
1896 void
1897 bar_window_name(char *s, size_t sz, struct swm_region *r)
1898 {
1899         char            *title;
1900
1901         if (r == NULL || r->ws == NULL || r->ws->focus == NULL)
1902                 return;
1903         if ((title = get_win_name(r->ws->focus->id)) == NULL)
1904                 return;
1905
1906         strlcat(s, title, sz);
1907         free(title);
1908 }
1909
1910 int             urgent[SWM_WS_MAX];
1911 void
1912 bar_urgent(char *s, size_t sz)
1913 {
1914         struct ws_win           *win;
1915         int                     i, j, num_screens;
1916         char                    b[8];
1917         xcb_get_property_cookie_t       c;
1918         xcb_icccm_wm_hints_t    hints;
1919
1920         for (i = 0; i < workspace_limit; i++)
1921                 urgent[i] = 0;
1922
1923         num_screens = xcb_setup_roots_length(xcb_get_setup(conn));
1924         for (i = 0; i < num_screens; i++)
1925                 for (j = 0; j < workspace_limit; j++)
1926                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry) {
1927                                 c = xcb_icccm_get_wm_hints(conn, win->id);
1928                                 if (xcb_icccm_get_wm_hints_reply(conn, c,
1929                                     &hints, NULL) == 0)
1930                                         continue;
1931                                 if (hints.flags & XCB_ICCCM_WM_HINT_X_URGENCY)
1932                                         urgent[j] = 1;
1933                         }
1934
1935         for (i = 0; i < workspace_limit; i++) {
1936                 if (urgent[i])
1937                         snprintf(b, sizeof b, "%d ", i + 1);
1938                 else
1939                         snprintf(b, sizeof b, "- ");
1940                 strlcat(s, b, sz);
1941         }
1942 }
1943
1944 void
1945 bar_workspace_name(char *s, size_t sz, struct swm_region *r)
1946 {
1947         if (r == NULL || r->ws == NULL)
1948                 return;
1949         if (r->ws->name != NULL)
1950                 strlcat(s, r->ws->name, sz);
1951 }
1952
1953 /* build the default bar format according to the defined enabled options */
1954 void
1955 bar_fmt(const char *fmtexp, char *fmtnew, struct swm_region *r, size_t sz)
1956 {
1957         /* if format provided, just copy the buffers */
1958         if (bar_format != NULL) {
1959                 strlcpy(fmtnew, fmtexp, sz);
1960                 return;
1961         }
1962
1963         /* reset the output buffer */
1964         *fmtnew = '\0';
1965
1966         strlcat(fmtnew, "+N:+I ", sz);
1967         if (stack_enabled)
1968                 strlcat(fmtnew, "+S", sz);
1969         strlcat(fmtnew, " ", sz);
1970
1971         /* only show the workspace name if there's actually one */
1972         if (r != NULL && r->ws != NULL && r->ws->name != NULL)
1973                 strlcat(fmtnew, "<+D>", sz);
1974         strlcat(fmtnew, "+3<", sz);
1975
1976         if (clock_enabled) {
1977                 strlcat(fmtnew, fmtexp, sz);
1978                 strlcat(fmtnew, "+4<", sz);
1979         }
1980
1981         /* bar_urgent already adds the space before the last asterisk */
1982         if (urgent_enabled)
1983                 strlcat(fmtnew, "* +U*+4<", sz);
1984
1985         if (title_class_enabled) {
1986                 strlcat(fmtnew, "+C", sz);
1987                 if (!title_name_enabled)
1988                         strlcat(fmtnew, "+4<", sz);
1989         }
1990
1991         /* checks needed by the colon and floating strlcat(3) calls below */
1992         if (r != NULL && r->ws != NULL && r->ws->focus != NULL) {
1993                 if (title_name_enabled) {
1994                         if (title_class_enabled)
1995                                 strlcat(fmtnew, ":", sz);
1996                         strlcat(fmtnew, "+T+4<", sz);
1997                 }
1998                 if (window_name_enabled) {
1999                         if (r->ws->focus->floating)
2000                                 strlcat(fmtnew, "+F ", sz);
2001                         strlcat(fmtnew, "+64W ", sz);
2002                 }
2003         }
2004
2005         /* finally add the action script output and the version */
2006         strlcat(fmtnew, "+4<+A+4<+V", sz);
2007 }
2008
2009 void
2010 bar_replace_pad(char *tmp, int *limit, size_t sz)
2011 {
2012         /* special case; no limit given, pad one space, instead */
2013         if (*limit == (int)sz - 1)
2014                 *limit = 1;
2015         snprintf(tmp, sz, "%*s", *limit, " ");
2016 }
2017
2018 /* replaces the bar format character sequences (like in tmux(1)) */
2019 char *
2020 bar_replace_seq(char *fmt, char *fmtrep, struct swm_region *r, size_t *offrep,
2021     size_t sz)
2022 {
2023         char                    *ptr;
2024         char                    tmp[SWM_BAR_MAX];
2025         int                     limit, size;
2026         size_t                  len;
2027
2028         /* reset strlcat(3) buffer */
2029         *tmp = '\0';
2030
2031         /* get number, if any */
2032         fmt++;
2033         size = 0;
2034         if (sscanf(fmt, "%d%n", &limit, &size) != 1)
2035                 limit = sizeof tmp - 1;
2036         if (limit <= 0 || limit >= (int)sizeof tmp)
2037                 limit = sizeof tmp - 1;
2038
2039         /* there is nothing to replace (ie EOL) */
2040         fmt += size;
2041         if (*fmt == '\0')
2042                 return (fmt);
2043
2044         switch (*fmt) {
2045         case '<':
2046                 bar_replace_pad(tmp, &limit, sizeof tmp);
2047                 break;
2048         case 'A':
2049                 snprintf(tmp, sizeof tmp, "%s", bar_ext);
2050                 break;
2051         case 'C':
2052                 bar_class_name(tmp, sizeof tmp, r);
2053                 break;
2054         case 'D':
2055                 bar_workspace_name(tmp, sizeof tmp, r);
2056                 break;
2057         case 'F':
2058                 bar_window_float(tmp, sizeof tmp, r);
2059                 break;
2060         case 'I':
2061                 snprintf(tmp, sizeof tmp, "%d", r->ws->idx + 1);
2062                 break;
2063         case 'N':
2064                 snprintf(tmp, sizeof tmp, "%d", r->s->idx + 1);
2065                 break;
2066         case 'P':
2067                 bar_class_title_name(tmp, sizeof tmp, r);
2068                 break;
2069         case 'S':
2070                 snprintf(tmp, sizeof tmp, "%s", r->ws->stacker);
2071                 break;
2072         case 'T':
2073                 bar_title_name(tmp, sizeof tmp, r);
2074                 break;
2075         case 'U':
2076                 bar_urgent(tmp, sizeof tmp);
2077                 break;
2078         case 'V':
2079                 snprintf(tmp, sizeof tmp, "%s", bar_vertext);
2080                 break;
2081         case 'W':
2082                 bar_window_name(tmp, sizeof tmp, r);
2083                 break;
2084         default:
2085                 /* unknown character sequence; copy as-is */
2086                 snprintf(tmp, sizeof tmp, "+%c", *fmt);
2087                 break;
2088         }
2089
2090         len = strlen(tmp);
2091         ptr = tmp;
2092         if ((int)len < limit)
2093                 limit = len;
2094         while (limit-- > 0) {
2095                 if (*offrep >= sz - 1)
2096                         break;
2097                 fmtrep[(*offrep)++] = *ptr++;
2098         }
2099
2100         fmt++;
2101         return (fmt);
2102 }
2103
2104 void
2105 bar_replace(char *fmt, char *fmtrep, struct swm_region *r, size_t sz)
2106 {
2107         size_t                  off;
2108
2109         off = 0;
2110         while (*fmt != '\0') {
2111                 if (*fmt != '+') {
2112                         /* skip ordinary characters */
2113                         if (off >= sz - 1)
2114                                 break;
2115                         fmtrep[off++] = *fmt++;
2116                         continue;
2117                 }
2118
2119                 /* character sequence found; replace it */
2120                 fmt = bar_replace_seq(fmt, fmtrep, r, &off, sz);
2121                 if (off >= sz - 1)
2122                         break;
2123         }
2124
2125         fmtrep[off] = '\0';
2126 }
2127
2128 void
2129 bar_fmt_expand(char *fmtexp, size_t sz)
2130 {
2131         char                    *fmt = NULL;
2132         size_t                  len;
2133         struct tm               tm;
2134         time_t                  tmt;
2135
2136         /* start by grabbing the current time and date */
2137         time(&tmt);
2138         localtime_r(&tmt, &tm);
2139
2140         /* figure out what to expand */
2141         if (bar_format != NULL)
2142                 fmt = bar_format;
2143         else if (bar_format == NULL && clock_enabled)
2144                 fmt = clock_format;
2145         /* if nothing to expand bail out */
2146         if (fmt == NULL) {
2147                 *fmtexp = '\0';
2148                 return;
2149         }
2150
2151         /* copy as-is, just in case the format shouldn't be expanded below */
2152         strlcpy(fmtexp, fmt, sz);
2153         /* finally pass the string through strftime(3) */
2154 #ifndef SWM_DENY_CLOCK_FORMAT
2155         if ((len = strftime(fmtexp, sz, fmt, &tm)) == 0)
2156                 warnx("format too long");
2157         fmtexp[len] = '\0';
2158 #endif
2159 }
2160
2161 void
2162 bar_fmt_print(void)
2163 {
2164         char                    fmtexp[SWM_BAR_MAX], fmtnew[SWM_BAR_MAX];
2165         char                    fmtrep[SWM_BAR_MAX];
2166         int                     i, num_screens;
2167         struct swm_region       *r;
2168
2169         /* expand the format by first passing it through strftime(3) */
2170         bar_fmt_expand(fmtexp, sizeof fmtexp);
2171
2172         num_screens = xcb_setup_roots_length(xcb_get_setup(conn));
2173         for (i = 0; i < num_screens; i++) {
2174                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
2175                         if (r->bar == NULL)
2176                                 continue;
2177                         bar_fmt(fmtexp, fmtnew, r, sizeof fmtnew);
2178                         bar_replace(fmtnew, fmtrep, r, sizeof fmtrep);
2179                         if (bar_font_legacy)
2180                                 bar_print_legacy(r, fmtrep);
2181                         else
2182                                 bar_print(r, fmtrep);
2183                 }
2184         }
2185 }
2186
2187 void
2188 bar_update(void)
2189 {
2190         size_t                  len;
2191         char                    *b;
2192
2193         if (!bar_enabled)
2194                 return;
2195         if (bar_extra && bar_extra_running) {
2196                 /* ignore short reads; it'll correct itself */
2197                 while ((b = fgetln(stdin, &len)) != NULL)
2198                         if (b && b[len - 1] == '\n') {
2199                                 b[len - 1] = '\0';
2200                                 strlcpy((char *)bar_ext, b, sizeof bar_ext);
2201                         }
2202                 if (b == NULL && errno != EAGAIN) {
2203                         warn("bar_update: bar_extra failed");
2204                         bar_extra_stop();
2205                 }
2206         } else
2207                 strlcpy((char *)bar_ext, "", sizeof bar_ext);
2208
2209         bar_fmt_print();
2210         alarm(bar_delay);
2211 }
2212
2213 void
2214 bar_signal(int sig)
2215 {
2216         /* suppress unused warning since var is needed */
2217         (void)sig;
2218
2219         bar_alarm = 1;
2220 }
2221
2222 void
2223 bar_toggle(struct swm_region *r, union arg *args)
2224 {
2225         struct swm_region       *tmpr;
2226         int                     i, num_screens;
2227
2228         /* suppress unused warnings since vars are needed */
2229         (void)r;
2230         (void)args;
2231
2232         DNPRINTF(SWM_D_BAR, "bar_toggle\n");
2233
2234         num_screens = xcb_setup_roots_length(xcb_get_setup(conn));
2235         if (bar_enabled) {
2236                 for (i = 0; i < num_screens; i++)
2237                         TAILQ_FOREACH(tmpr, &screens[i].rl, entry)
2238                                 if (tmpr->bar)
2239                                         xcb_unmap_window(conn, tmpr->bar->id);
2240         } else {
2241                 for (i = 0; i < num_screens; i++)
2242                         TAILQ_FOREACH(tmpr, &screens[i].rl, entry)
2243                                 if (tmpr->bar)
2244                                         xcb_map_window(conn, tmpr->bar->id);
2245         }
2246
2247         bar_enabled = !bar_enabled;
2248
2249         stack();
2250
2251         /* must be after stack */
2252         bar_update();
2253
2254         focus_flush();
2255 }
2256
2257 void
2258 bar_refresh(void)
2259 {
2260         struct swm_region       *r;
2261         uint32_t                wa[2];
2262         int                     i, num_screens;
2263
2264         /* do this here because the conf file is in memory */
2265         if (bar_extra && !bar_extra_running && bar_argv[0]) {
2266                 /* launch external status app */
2267                 bar_extra_running = 1;
2268                 if (pipe(bar_pipe) == -1)
2269                         err(1, "pipe error");
2270                 socket_setnonblock(bar_pipe[0]);
2271                 socket_setnonblock(bar_pipe[1]); /* XXX hmmm, really? */
2272                 if (dup2(bar_pipe[0], 0) == -1)
2273                         err(1, "dup2");
2274                 if (dup2(bar_pipe[1], 1) == -1)
2275                         err(1, "dup2");
2276                 if (signal(SIGPIPE, SIG_IGN) == SIG_ERR)
2277                         err(1, "could not disable SIGPIPE");
2278                 switch (bar_pid = fork()) {
2279                 case -1:
2280                         err(1, "cannot fork");
2281                         break;
2282                 case 0: /* child */
2283                         close(bar_pipe[0]);
2284                         execvp(bar_argv[0], bar_argv);
2285                         err(1, "%s external app failed", bar_argv[0]);
2286                         break;
2287                 default: /* parent */
2288                         close(bar_pipe[1]);
2289                         break;
2290                 }
2291         }
2292
2293         num_screens = xcb_setup_roots_length(xcb_get_setup(conn));
2294         for (i = 0; i < num_screens; i++)
2295                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
2296                         if (r->bar == NULL)
2297                                 continue;
2298                         wa[0] = screens[i].c[SWM_S_COLOR_BAR].pixel;
2299                         wa[1] = screens[i].c[SWM_S_COLOR_BAR_BORDER].pixel;
2300                         xcb_change_window_attributes(conn, r->bar->id,
2301                             XCB_CW_BACK_PIXEL | XCB_CW_BORDER_PIXEL, wa);
2302                 }
2303         bar_update();
2304 }
2305
2306 int
2307 isxlfd(char *s)
2308 {
2309         int      count = 0;
2310
2311         while ((s = index(s, '-'))) {
2312                 ++count;
2313                 ++s;
2314         }
2315
2316         return (count == 14);
2317 }
2318
2319 void
2320 fontset_init(void)
2321 {
2322         char                    *default_string;
2323         char                    **missing_charsets;
2324         int                     num_missing_charsets = 0;
2325         int                     i;
2326
2327         if (bar_fs) {
2328                 XFreeFontSet(display, bar_fs);
2329                 bar_fs = NULL;
2330         }
2331
2332         DNPRINTF(SWM_D_INIT, "fontset_init: loading bar_fonts: %s\n", bar_fonts);
2333
2334         bar_fs = XCreateFontSet(display, bar_fonts, &missing_charsets,
2335             &num_missing_charsets, &default_string);
2336
2337         if (num_missing_charsets > 0) {
2338                 warnx("Unable to load charset(s):");
2339
2340                 for (i = 0; i < num_missing_charsets; ++i)
2341                         warnx("%s", missing_charsets[i]);
2342
2343                 XFreeStringList(missing_charsets);
2344
2345                 if (strcmp(default_string, ""))
2346                         warnx("Glyphs from those sets will be replaced "
2347                             "by '%s'.", default_string);
2348                 else
2349                         warnx("Glyphs from those sets won't be drawn.");
2350         }
2351
2352         if (bar_fs == NULL)
2353                 errx(1, "Error creating font set structure.");
2354
2355         bar_fs_extents = XExtentsOfFontSet(bar_fs);
2356
2357         bar_height = bar_fs_extents->max_logical_extent.height +
2358             2 * bar_border_width;
2359
2360         if (bar_height < 1)
2361                 bar_height = 1;
2362 }
2363
2364 void
2365 xft_init(struct swm_region *r)
2366 {
2367         char                    *font, *d, *search;
2368         XRenderColor            color;
2369
2370         if (bar_font == NULL) {
2371                 if ((d = strdup(bar_fonts)) == NULL)
2372                         errx(1, "insufficient memory.");
2373                 search = d;
2374                 while ((font = strsep(&search, ",")) != NULL) {
2375                         if (*font == '\0')
2376                                 continue;
2377
2378                         DNPRINTF(SWM_D_INIT, "xft_init: try font %s\n", font);
2379
2380                         if (isxlfd(font)) {
2381                                 bar_font = XftFontOpenXlfd(display, r->s->idx,
2382                                                 font);
2383                         } else {
2384                                 bar_font = XftFontOpenName(display, r->s->idx,
2385                                                 font);
2386                         }
2387
2388                         if (!bar_font) {
2389                                 warnx("unable to load font %s", font);
2390                                 continue;
2391                         } else {
2392                                 DNPRINTF(SWM_D_INIT, "successfully opened "
2393                                     "font %s\n", font);
2394                                 break;
2395                         }
2396                 }
2397                 free(d);
2398         }
2399
2400         if (bar_font == NULL)
2401                 errx(1, "unable to open a font");
2402
2403         PIXEL_TO_XRENDERCOLOR(r->s->c[SWM_S_COLOR_BAR_FONT].pixel, color);
2404
2405         if (!XftColorAllocValue(display, DefaultVisual(display, r->s->idx),
2406             DefaultColormap(display, r->s->idx), &color, &bar_font_color))
2407                 warn("unable to allocate Xft color");
2408
2409         bar_height = bar_font->height + 2 * bar_border_width;
2410
2411         if (bar_height < 1)
2412                 bar_height = 1;
2413 }
2414
2415 void
2416 bar_setup(struct swm_region *r)
2417 {
2418         xcb_screen_t    *screen;
2419         uint32_t         wa[3];
2420
2421         DNPRINTF(SWM_D_BAR, "bar_setup: screen %d.\n",
2422             r->s->idx);
2423
2424         if ((screen = get_screen(r->s->idx)) == NULL)
2425                 errx(1, "ERROR: can't get screen %d.", r->s->idx);
2426
2427         if (r->bar != NULL)
2428                 return;
2429
2430         if ((r->bar = calloc(1, sizeof(struct swm_bar))) == NULL)
2431                 err(1, "bar_setup: calloc: failed to allocate memory.");
2432
2433         if (bar_font_legacy)
2434                 fontset_init();
2435         else
2436                 xft_init(r);
2437
2438         X(r->bar) = X(r);
2439         Y(r->bar) = bar_at_bottom ? (Y(r) + HEIGHT(r) - bar_height) : Y(r);
2440         WIDTH(r->bar) = WIDTH(r) - 2 * bar_border_width;
2441         HEIGHT(r->bar) = bar_height - 2 * bar_border_width;
2442
2443         r->bar->id = xcb_generate_id(conn);
2444         wa[0] = r->s->c[SWM_S_COLOR_BAR].pixel;
2445         wa[1] = r->s->c[SWM_S_COLOR_BAR_BORDER].pixel;
2446         wa[2] = XCB_EVENT_MASK_EXPOSURE;
2447
2448         xcb_create_window(conn, XCB_COPY_FROM_PARENT, r->bar->id, r->s->root,
2449             X(r->bar), Y(r->bar), WIDTH(r->bar), HEIGHT(r->bar),
2450             bar_border_width, XCB_WINDOW_CLASS_INPUT_OUTPUT,
2451             XCB_COPY_FROM_PARENT, XCB_CW_BACK_PIXEL | XCB_CW_BORDER_PIXEL
2452             | XCB_CW_EVENT_MASK, wa);
2453
2454         r->bar->buffer = xcb_generate_id(conn);
2455         xcb_create_pixmap(conn, screen->root_depth, r->bar->buffer, r->bar->id,
2456             WIDTH(r->bar), HEIGHT(r->bar));
2457
2458         if (xrandr_support)
2459                 xcb_randr_select_input(conn, r->bar->id,
2460                     XCB_RANDR_NOTIFY_MASK_OUTPUT_CHANGE);
2461
2462         if (bar_enabled)
2463                 xcb_map_window(conn, r->bar->id);
2464
2465         DNPRINTF(SWM_D_BAR, "bar_setup: window: 0x%x, (x,y) w x h: (%d,%d) "
2466             "%d x %d\n", WINID(r->bar), X(r->bar), Y(r->bar), WIDTH(r->bar),
2467             HEIGHT(r->bar));
2468
2469         if (signal(SIGALRM, bar_signal) == SIG_ERR)
2470                 err(1, "could not install bar_signal");
2471         bar_refresh();
2472 }
2473
2474 void
2475 bar_cleanup(struct swm_region *r)
2476 {
2477         if (r->bar == NULL)
2478                 return;
2479         xcb_destroy_window(conn, r->bar->id);
2480         xcb_free_pixmap(conn, r->bar->buffer);
2481         free(r->bar);
2482         r->bar = NULL;
2483 }
2484
2485 void
2486 set_win_state(struct ws_win *win, uint16_t state)
2487 {
2488         uint16_t                data[2] = { state, XCB_ATOM_NONE };
2489
2490         DNPRINTF(SWM_D_EVENT, "set_win_state: window: 0x%x, state: %u\n",
2491             win->id, state);
2492
2493         if (win == NULL)
2494                 return;
2495
2496         xcb_change_property(conn, XCB_PROP_MODE_REPLACE, win->id, a_state,
2497             a_state, 32, 2, data);
2498 }
2499
2500 uint32_t
2501 getstate(xcb_window_t w)
2502 {
2503         uint32_t                        result = 0;
2504         xcb_get_property_cookie_t       c;
2505         xcb_get_property_reply_t        *r;
2506
2507         c = xcb_get_property(conn, 0, w, a_state, a_state, 0L, 2L);
2508         r = xcb_get_property_reply(conn, c, NULL);
2509
2510         if (r) {
2511                 if (r->type == a_state && r->format == 32 && r->length == 2)
2512                         result = *((uint32_t *)xcb_get_property_value(r));
2513                 free(r);
2514         }
2515
2516         DNPRINTF(SWM_D_MISC, "getstate property: win 0x%x state %u\n", w,
2517             result);
2518         return (result);
2519 }
2520
2521 void
2522 version(struct swm_region *r, union arg *args)
2523 {
2524         /* suppress unused warnings since vars are needed */
2525         (void)r;
2526         (void)args;
2527
2528         bar_version = !bar_version;
2529         if (bar_version)
2530                 snprintf(bar_vertext, sizeof bar_vertext,
2531                     "Version: %s Build: %s", SPECTRWM_VERSION, buildstr);
2532         else
2533                 strlcpy(bar_vertext, "", sizeof bar_vertext);
2534         bar_update();
2535
2536         xcb_flush(conn);
2537 }
2538
2539 void
2540 client_msg(struct ws_win *win, xcb_atom_t a, xcb_timestamp_t t)
2541 {
2542         xcb_client_message_event_t      ev;
2543 #ifdef SWM_DEBUG
2544         char                            *name;
2545 #endif
2546
2547         if (win == NULL)
2548                 return;
2549 #ifdef SWM_DEBUG
2550         name = get_atom_name(a);
2551         DNPRINTF(SWM_D_EVENT, "client_msg: window: 0x%x, atom: %s(%u), "
2552             "time: %#x\n",
2553             win->id, name, a, t);
2554         free(name);
2555 #endif
2556
2557         bzero(&ev, sizeof ev);
2558         ev.response_type = XCB_CLIENT_MESSAGE;
2559         ev.window = win->id;
2560         ev.type = a_prot;
2561         ev.format = 32;
2562         ev.data.data32[0] = a;
2563         ev.data.data32[1] = t;
2564
2565         xcb_send_event(conn, 0, win->id,
2566             XCB_EVENT_MASK_NO_EVENT, (const char *)&ev);
2567 }
2568
2569 /* synthetic response to a ConfigureRequest when not making a change */
2570 void
2571 config_win(struct ws_win *win, xcb_configure_request_event_t *ev)
2572 {
2573         xcb_configure_notify_event_t ce;
2574
2575         if (win == NULL)
2576                 return;
2577
2578         /* send notification of unchanged state. */
2579         bzero(&ce, sizeof(ce));
2580         ce.response_type = XCB_CONFIGURE_NOTIFY;
2581         ce.x = X(win);
2582         ce.y = Y(win);
2583         ce.width = WIDTH(win);
2584         ce.height = HEIGHT(win);
2585         ce.override_redirect = 0;
2586
2587         if (ev == NULL) {
2588                 /* EWMH */
2589                 ce.event = win->id;
2590                 ce.window = win->id;
2591                 ce.border_width = BORDER(win);
2592                 ce.above_sibling = XCB_WINDOW_NONE;
2593         } else {
2594                 /* normal */
2595                 ce.event = ev->window;
2596                 ce.window = ev->window;
2597
2598                 /* make response appear more WM_SIZE_HINTS-compliant */
2599                 if (win->sh.flags) {
2600                         DNPRINTF(SWM_D_MISC, "config_win: hints: window: 0x%x,"
2601                             " sh.flags: %u, min: %d x %d, max: %d x %d, inc: "
2602                             "%d x %d\n", win->id, win->sh.flags, SH_MIN_W(win),
2603                             SH_MIN_H(win), SH_MAX_W(win), SH_MAX_H(win),
2604                             SH_INC_W(win), SH_INC_H(win));
2605                 }
2606
2607                 /* min size */
2608                 if (SH_MIN(win)) {
2609                         /* the hint may be set... to 0! */
2610                         if (SH_MIN_W(win) > 0 && ce.width < SH_MIN_W(win))
2611                                 ce.width = SH_MIN_W(win);
2612                         if (SH_MIN_H(win) > 0 && ce.height < SH_MIN_H(win))
2613                                 ce.height = SH_MIN_H(win);
2614                 }
2615
2616                 /* max size */
2617                 if (SH_MAX(win)) {
2618                         /* may also be advertized as 0 */
2619                         if (SH_MAX_W(win) > 0 && ce.width > SH_MAX_W(win))
2620                                 ce.width = SH_MAX_W(win);
2621                         if (SH_MAX_H(win) > 0 && ce.height > SH_MAX_H(win))
2622                                 ce.height = SH_MAX_H(win);
2623                 }
2624
2625                 /* resize increment. */
2626                 if (SH_INC(win)) {
2627                         if (SH_INC_W(win) > 1 && ce.width > SH_INC_W(win))
2628                                 ce.width -= (ce.width - SH_MIN_W(win)) %
2629                                     SH_INC_W(win);
2630                         if (SH_INC_H(win) > 1 && ce.height > SH_INC_H(win))
2631                                 ce.height -= (ce.height - SH_MIN_H(win)) %
2632                                     SH_INC_H(win);
2633                 }
2634
2635                 /* adjust x and y for requested border_width. */
2636                 ce.x += BORDER(win) - ev->border_width;
2637                 ce.y += BORDER(win) - ev->border_width;
2638                 ce.border_width = ev->border_width;
2639                 ce.above_sibling = ev->sibling;
2640         }
2641
2642         DNPRINTF(SWM_D_MISC, "config_win: ewmh: %s, window: 0x%x, (x,y) w x h: "
2643             "(%d,%d) %d x %d, border: %d\n", YESNO(ev == NULL), win->id, ce.x,
2644             ce.y, ce.width, ce.height, ce.border_width);
2645
2646         xcb_send_event(conn, 0, win->id, XCB_EVENT_MASK_STRUCTURE_NOTIFY,
2647             (char *)&ce);
2648 }
2649
2650 int
2651 count_win(struct workspace *ws, int count_transient)
2652 {
2653         struct ws_win           *win;
2654         int                     count = 0;
2655
2656         TAILQ_FOREACH(win, &ws->winlist, entry) {
2657                 if (!count_transient && win->floating)
2658                         continue;
2659                 if (!count_transient && win->transient)
2660                         continue;
2661                 if (win->iconic)
2662                         continue;
2663                 count++;
2664         }
2665         DNPRINTF(SWM_D_MISC, "count_win: %d\n", count);
2666
2667         return (count);
2668 }
2669
2670 void
2671 quit(struct swm_region *r, union arg *args)
2672 {
2673         /* suppress unused warnings since vars are needed */
2674         (void)r;
2675         (void)args;
2676
2677         DNPRINTF(SWM_D_MISC, "quit\n");
2678         running = 0;
2679 }
2680
2681 void
2682 map_window(struct ws_win *win)
2683 {
2684         uint32_t        val = XCB_STACK_MODE_ABOVE;
2685
2686         if (win == NULL)
2687                 return;
2688
2689         DNPRINTF(SWM_D_EVENT, "map_window: win 0x%x, mapped: %s\n", win->id,
2690             YESNO(win->mapped));
2691
2692         xcb_configure_window(conn, win->id,
2693             XCB_CONFIG_WINDOW_STACK_MODE, &val);
2694
2695         if (win->mapped)
2696                 return;
2697
2698         xcb_map_window(conn, win->id);
2699         set_win_state(win, XCB_ICCCM_WM_STATE_NORMAL);
2700         win->mapped = 1;
2701 }
2702
2703 void
2704 unmap_window(struct ws_win *win)
2705 {
2706         if (win == NULL)
2707                 return;
2708
2709         DNPRINTF(SWM_D_EVENT, "unmap_window: win 0x%x, mapped: %s\n", win->id,
2710             YESNO(win->mapped));
2711
2712         if (!win->mapped)
2713                 return;
2714
2715         xcb_unmap_window(conn, win->id);
2716         set_win_state(win, XCB_ICCCM_WM_STATE_ICONIC);
2717         win->mapped = 0;
2718 }
2719
2720 void
2721 unmap_all(void)
2722 {
2723         struct ws_win           *win;
2724         int                     i, j, num_screens;
2725
2726         num_screens = xcb_setup_roots_length(xcb_get_setup(conn));
2727         for (i = 0; i < num_screens; i++)
2728                 for (j = 0; j < workspace_limit; j++)
2729                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
2730                                 unmap_window(win);
2731 }
2732
2733 void
2734 fake_keypress(struct ws_win *win, xcb_keysym_t keysym, uint16_t modifiers)
2735 {
2736         xcb_key_press_event_t   event;
2737         xcb_keycode_t           *keycode;
2738
2739         if (win == NULL)
2740                 return;
2741
2742         keycode = xcb_key_symbols_get_keycode(syms, keysym);
2743
2744         DNPRINTF(SWM_D_MISC, "fake_keypress: win 0x%x keycode %u\n",
2745             win->id, *keycode);
2746
2747         bzero(&event, sizeof(event));
2748         event.event = win->id;
2749         event.root = win->s->root;
2750         event.child = XCB_WINDOW_NONE;
2751         event.time = XCB_CURRENT_TIME;
2752         event.event_x = X(win);
2753         event.event_y = Y(win);
2754         event.root_x = 1;
2755         event.root_y = 1;
2756         event.same_screen = 1;
2757         event.detail = *keycode;
2758         event.state = modifiers;
2759
2760         event.response_type = XCB_KEY_PRESS;
2761         xcb_send_event(conn, 1, win->id,
2762             XCB_EVENT_MASK_KEY_PRESS, (const char *)&event);
2763
2764         event.response_type = XCB_KEY_RELEASE;
2765         xcb_send_event(conn, 1, win->id,
2766             XCB_EVENT_MASK_KEY_RELEASE, (const char *)&event);
2767
2768         free(keycode);
2769 }
2770
2771 void
2772 restart(struct swm_region *r, union arg *args)
2773 {
2774         /* suppress unused warning since var is needed */
2775         (void)r;
2776         (void)args;
2777
2778         DNPRINTF(SWM_D_MISC, "restart: %s\n", start_argv[0]);
2779
2780         shutdown_cleanup();
2781
2782         execvp(start_argv[0], start_argv);
2783         warn("execvp failed");
2784         quit(NULL, NULL);
2785 }
2786
2787 struct ws_win *
2788 get_pointer_win(xcb_window_t root)
2789 {
2790         struct ws_win                   *win = NULL;
2791         xcb_query_pointer_reply_t       *r;
2792
2793         DNPRINTF(SWM_D_EVENT, "get_pointer_win: root: 0x%x.\n", root);
2794
2795         r = xcb_query_pointer_reply(conn, xcb_query_pointer(conn, root), NULL);
2796         if (r) {
2797                 win = find_window(r->child);
2798                 if (win) {
2799                         DNPRINTF(SWM_D_EVENT, "get_pointer_win: 0x%x.\n",
2800                             win->id);
2801                 } else {
2802                         DNPRINTF(SWM_D_EVENT, "get_pointer_win: none.\n");
2803                 }
2804         }
2805
2806         return win;
2807 }
2808
2809 struct swm_region *
2810 root_to_region(xcb_window_t root, int check)
2811 {
2812         struct ws_win                   *cfw;
2813         struct swm_region               *r = NULL;
2814         int                             i, num_screens;
2815         xcb_query_pointer_reply_t       *qpr;
2816         xcb_get_input_focus_reply_t     *gifr;
2817
2818         DNPRINTF(SWM_D_MISC, "root_to_region: window: 0x%x\n", root);
2819
2820         num_screens = xcb_setup_roots_length(xcb_get_setup(conn));
2821         for (i = 0; i < num_screens; i++)
2822                 if (screens[i].root == root)
2823                         break;
2824
2825         if (check & SWM_CK_FOCUS) {
2826                 /* Try to find an actively focused window */
2827                 gifr = xcb_get_input_focus_reply(conn,
2828                     xcb_get_input_focus(conn), NULL);
2829                 if (gifr) {
2830                         cfw = find_window(gifr->focus);
2831                         if (cfw && cfw->ws->r)
2832                                 r = cfw->ws->r;
2833
2834                         free(gifr);
2835                 }
2836         }
2837
2838         if (r == NULL && check & SWM_CK_POINTER) {
2839                 /* No region with an active focus; try to use pointer. */
2840                 qpr = xcb_query_pointer_reply(conn, xcb_query_pointer(conn,
2841                     screens[i].root), NULL);
2842
2843                 if (qpr) {
2844                         DNPRINTF(SWM_D_MISC, "root_to_region: pointer: "
2845                             "(%d,%d)\n", qpr->root_x, qpr->root_y);
2846                         TAILQ_FOREACH(r, &screens[i].rl, entry)
2847                                 if (X(r) <= qpr->root_x &&
2848                                     qpr->root_x < MAX_X(r) &&
2849                                     Y(r) <= qpr->root_y &&
2850                                     qpr->root_y < MAX_Y(r))
2851                                         break;
2852                         free(qpr);
2853                 }
2854         }
2855
2856         /* Last resort. */
2857         if (r == NULL && check & SWM_CK_FALLBACK)
2858                 r = TAILQ_FIRST(&screens[i].rl);
2859
2860         return (r);
2861 }
2862
2863 struct ws_win *
2864 find_unmanaged_window(xcb_window_t id)
2865 {
2866         struct ws_win           *win;
2867         int                     i, j, num_screens;
2868
2869         num_screens = xcb_setup_roots_length(xcb_get_setup(conn));
2870         for (i = 0; i < num_screens; i++)
2871                 for (j = 0; j < workspace_limit; j++)
2872                         TAILQ_FOREACH(win, &screens[i].ws[j].unmanagedlist,
2873                             entry)
2874                                 if (id == win->id)
2875                                         return (win);
2876         return (NULL);
2877 }
2878
2879 struct ws_win *
2880 find_window(xcb_window_t id)
2881 {
2882         struct ws_win           *win;
2883         int                     i, j, num_screens;
2884         xcb_query_tree_reply_t  *r;
2885
2886         num_screens = xcb_setup_roots_length(xcb_get_setup(conn));
2887         for (i = 0; i < num_screens; i++)
2888                 for (j = 0; j < workspace_limit; j++)
2889                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
2890                                 if (id == win->id)
2891                                         return (win);
2892
2893         r = xcb_query_tree_reply(conn, xcb_query_tree(conn, id), NULL);
2894         if (!r)
2895                 return (NULL);
2896
2897         /* if we were looking for the parent return that window instead */
2898         if (r->parent == 0 || r->root == r->parent) {
2899                 free(r);
2900                 return (NULL);
2901         }
2902
2903         /* look for parent */
2904         for (i = 0; i < num_screens; i++)
2905                 for (j = 0; j < workspace_limit; j++)
2906                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
2907                                 if (r->parent == win->id) {
2908                                         free(r);
2909                                         return (win);
2910                                 }
2911
2912         free(r);
2913         return (NULL);
2914 }
2915
2916 void
2917 spawn(int ws_idx, union arg *args, int close_fd)
2918 {
2919         int                     fd;
2920         char                    *ret = NULL;
2921
2922         DNPRINTF(SWM_D_MISC, "spawn: %s\n", args->argv[0]);
2923
2924         close(xcb_get_file_descriptor(conn));
2925
2926         setenv("LD_PRELOAD", SWM_LIB, 1);
2927
2928         if (asprintf(&ret, "%d", ws_idx) == -1) {
2929                 warn("spawn: asprintf SWM_WS");
2930                 _exit(1);
2931         }
2932         setenv("_SWM_WS", ret, 1);
2933         free(ret);
2934         ret = NULL;
2935
2936         if (asprintf(&ret, "%d", getpid()) == -1) {
2937                 warn("spawn: asprintf _SWM_PID");
2938                 _exit(1);
2939         }
2940         setenv("_SWM_PID", ret, 1);
2941         free(ret);
2942         ret = NULL;
2943
2944         if (setsid() == -1) {
2945                 warn("spawn: setsid");
2946                 _exit(1);
2947         }
2948
2949         if (close_fd) {
2950                 /*
2951                  * close stdin and stdout to prevent interaction between apps
2952                  * and the baraction script
2953                  * leave stderr open to record errors
2954                 */
2955                 if ((fd = open(_PATH_DEVNULL, O_RDWR, 0)) == -1) {
2956                         warn("spawn: open");
2957                         _exit(1);
2958                 }
2959                 dup2(fd, STDIN_FILENO);
2960                 dup2(fd, STDOUT_FILENO);
2961                 if (fd > 2)
2962                         close(fd);
2963         }
2964
2965         execvp(args->argv[0], args->argv);
2966
2967         warn("spawn: execvp");
2968         _exit(1);
2969 }
2970
2971 void
2972 kill_refs(struct ws_win *win)
2973 {
2974         int                     i, x, num_screens;
2975         struct swm_region       *r;
2976         struct workspace        *ws;
2977
2978         if (win == NULL)
2979                 return;
2980
2981         num_screens = xcb_setup_roots_length(xcb_get_setup(conn));
2982         for (i = 0; i < num_screens; i++)
2983                 TAILQ_FOREACH(r, &screens[i].rl, entry)
2984                         for (x = 0; x < workspace_limit; x++) {
2985                                 ws = &r->s->ws[x];
2986                                 if (win == ws->focus)
2987                                         ws->focus = NULL;
2988                                 if (win == ws->focus_prev)
2989                                         ws->focus_prev = NULL;
2990                         }
2991 }
2992
2993 int
2994 validate_win(struct ws_win *testwin)
2995 {
2996         struct ws_win           *win;
2997         struct workspace        *ws;
2998         struct swm_region       *r;
2999         int                     i, x, num_screens;
3000
3001         if (testwin == NULL)
3002                 return (0);
3003
3004         num_screens = xcb_setup_roots_length(xcb_get_setup(conn));
3005         for (i = 0; i < num_screens; i++)
3006                 TAILQ_FOREACH(r, &screens[i].rl, entry)
3007                         for (x = 0; x < workspace_limit; x++) {
3008                                 ws = &r->s->ws[x];
3009                                 TAILQ_FOREACH(win, &ws->winlist, entry)
3010                                         if (win == testwin)
3011                                                 return (0);
3012                         }
3013         return (1);
3014 }
3015
3016 int
3017 validate_ws(struct workspace *testws)
3018 {
3019         struct swm_region       *r;
3020         struct workspace        *ws;
3021         int                     i, x, num_screens;
3022
3023         /* validate all ws */
3024         num_screens = xcb_setup_roots_length(xcb_get_setup(conn));
3025         for (i = 0; i < num_screens; i++)
3026                 TAILQ_FOREACH(r, &screens[i].rl, entry)
3027                         for (x = 0; x < workspace_limit; x++) {
3028                                 ws = &r->s->ws[x];
3029                                 if (ws == testws)
3030                                         return (0);
3031                         }
3032         return (1);
3033 }
3034
3035 void
3036 unfocus_win(struct ws_win *win)
3037 {
3038         xcb_window_t            none = XCB_WINDOW_NONE;
3039
3040         DNPRINTF(SWM_D_FOCUS, "unfocus_win: window: 0x%x\n", WINID(win));
3041
3042         if (win == NULL)
3043                 return;
3044         if (win->ws == NULL) {
3045                 DNPRINTF(SWM_D_FOCUS, "unfocus_win: NULL ws.\n");
3046                 return;
3047         }
3048
3049         if (validate_ws(win->ws)) {
3050                 DNPRINTF(SWM_D_FOCUS, "unfocus_win: invalid ws.\n");
3051                 return;
3052         }
3053
3054         if (win->ws->r == NULL) {
3055                 DNPRINTF(SWM_D_FOCUS, "unfocus_win: NULL region.\n");
3056                 return;
3057         }
3058
3059         if (validate_win(win)) {
3060                 DNPRINTF(SWM_D_FOCUS, "unfocus_win: invalid win.\n");
3061                 kill_refs(win);
3062                 return;
3063         }
3064
3065         if (win->ws->focus == win) {
3066                 win->ws->focus = NULL;
3067                 win->ws->focus_prev = win;
3068         }
3069
3070         if (validate_win(win->ws->focus)) {
3071                 kill_refs(win->ws->focus);
3072                 win->ws->focus = NULL;
3073         }
3074         if (validate_win(win->ws->focus_prev)) {
3075                 kill_refs(win->ws->focus_prev);
3076                 win->ws->focus_prev = NULL;
3077         }
3078
3079         xcb_change_window_attributes(conn, win->id, XCB_CW_BORDER_PIXEL,
3080             &win->ws->r->s->c[SWM_S_COLOR_UNFOCUS].pixel);
3081
3082         xcb_change_property(conn, XCB_PROP_MODE_REPLACE, win->s->root,
3083             ewmh[_NET_ACTIVE_WINDOW].atom, XCB_ATOM_WINDOW, 32, 1, &none);
3084
3085         DNPRINTF(SWM_D_FOCUS, "unfocus_win: done.\n");
3086 }
3087
3088 void
3089 focus_win(struct ws_win *win)
3090 {
3091         struct ws_win                   *cfw = NULL, *parent = NULL, *w;
3092         struct workspace                *ws;
3093         xcb_get_input_focus_reply_t     *r;
3094
3095         DNPRINTF(SWM_D_FOCUS, "focus_win: window: 0x%x\n", WINID(win));
3096
3097         if (win == NULL)
3098                 goto out;
3099
3100         if (win->ws == NULL)
3101                 goto out;
3102
3103         ws = win->ws;
3104
3105         if (validate_ws(ws))
3106                 goto out;
3107
3108         if (validate_win(win)) {
3109                 kill_refs(win);
3110                 goto out;
3111         }
3112
3113         r = xcb_get_input_focus_reply(conn, xcb_get_input_focus(conn), NULL);
3114         if (r) {
3115                 cfw = find_window(r->focus);
3116                 if (cfw != win)
3117                         unfocus_win(cfw);
3118                 free(r);
3119         }
3120
3121         if (ws->focus != win) {
3122                 if (ws->focus && ws->focus != cfw)
3123                         unfocus_win(ws->focus);
3124                 ws->focus = win;
3125         }
3126
3127         /* If this window directs focus to a child window, then clear. */
3128         if (win->focus_child)
3129                 win->focus_child = NULL;
3130
3131         /* If transient, adjust parent's focus child for focus_magic. */
3132         if (win->transient) {
3133                 parent = find_window(win->transient);
3134                 if (parent && parent->focus_child != win)
3135                         parent->focus_child = win;
3136         }
3137
3138         if (cfw != win && ws->r != NULL) {
3139                 /* Set input focus if no input hint, or indicated by hint. */
3140                 if (!(win->hints.flags & XCB_ICCCM_WM_HINT_INPUT) ||
3141                     (win->hints.flags & XCB_ICCCM_WM_HINT_INPUT &&
3142                      win->hints.input))
3143                         xcb_set_input_focus(conn, XCB_INPUT_FOCUS_PARENT,
3144                                         win->id, last_event_time);
3145
3146                 /* Tell app it can adjust focus to a specific window. */
3147                 if (win->take_focus) {
3148                         /* java is special; always tell parent */
3149                         if (win->transient && win->java)
3150                                 client_msg(parent, a_takefocus,
3151                                     last_event_time);
3152                         else
3153                                 client_msg(win, a_takefocus, last_event_time);
3154                 }
3155
3156                 xcb_change_window_attributes(conn, win->id, XCB_CW_BORDER_PIXEL,
3157                     &ws->r->s->c[SWM_S_COLOR_FOCUS].pixel);
3158
3159                 if (ws->cur_layout->flags & SWM_L_MAPONFOCUS ||
3160                     ws->always_raise) {
3161                         /* If a parent exists, map it first. */
3162                         if (parent) {
3163                                 map_window(parent);
3164
3165                                 /* Map siblings next. */
3166                                 TAILQ_FOREACH(w, &ws->winlist, entry)
3167                                         if (w != win && !w->iconic &&
3168                                             w->transient == parent->id)
3169                                                 map_window(w);
3170                         }
3171
3172                         /* Map focused window. */
3173                         map_window(win);
3174
3175                         /* Finally, map children of focus window. */
3176                         TAILQ_FOREACH(w, &ws->winlist, entry)
3177                                 if (w->transient == win->id && !w->iconic)
3178                                         map_window(w);
3179
3180                 }
3181
3182                 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, win->s->root,
3183                     ewmh[_NET_ACTIVE_WINDOW].atom, XCB_ATOM_WINDOW, 32, 1,
3184                     &win->id);
3185         }
3186
3187 out:
3188         bar_update();
3189
3190         DNPRINTF(SWM_D_FOCUS, "focus_win: done.\n");
3191 }
3192
3193 /* If a child window should have focus instead, return it. */
3194 struct ws_win *
3195 get_focus_magic(struct ws_win *win)
3196 {
3197         struct ws_win   *parent = NULL;
3198         struct ws_win   *child = NULL;
3199
3200         DNPRINTF(SWM_D_FOCUS, "get_focus_magic: window: 0x%x\n", WINID(win));
3201         if (win == NULL)
3202                 return win;
3203
3204         if (win->transient) {
3205                 parent = find_window(win->transient);
3206
3207                 /* If parent prefers focus elsewhere, then try to do so. */
3208                 if (parent && (child = parent->focus_child)) {
3209                         if (validate_win(child) == 0 && child->mapped)
3210                                 win = child;
3211                         else
3212                                 parent->focus_child = NULL;
3213                 }
3214         }
3215
3216         /* If this window prefers focus elsewhere, then try to do so. */
3217         if ((child = win->focus_child)) {
3218                 if (validate_win(child) == 0 && child->mapped)
3219                         win = child;
3220                 else
3221                         win->focus_child = NULL;
3222         }
3223
3224         return win;
3225 }
3226
3227 void
3228 event_drain(uint8_t rt)
3229 {
3230         xcb_generic_event_t     *evt;
3231
3232         /* ensure all pending requests have been processed before filtering. */
3233         xcb_aux_sync(conn);
3234         while ((evt = xcb_poll_for_event(conn))) {
3235                 if (XCB_EVENT_RESPONSE_TYPE(evt) != rt)
3236                         event_handle(evt);
3237
3238                 free(evt);
3239         }
3240 }
3241
3242 void
3243 switchws(struct swm_region *r, union arg *args)
3244 {
3245         int                     wsid = args->id, unmap_old = 0;
3246         struct swm_region       *this_r, *other_r;
3247         struct ws_win           *win;
3248         struct workspace        *new_ws, *old_ws;
3249
3250         if (!(r && r->s))
3251                 return;
3252
3253         if (wsid >= workspace_limit)
3254                 return;
3255
3256         this_r = r;
3257         old_ws = this_r->ws;
3258         new_ws = &this_r->s->ws[wsid];
3259
3260         DNPRINTF(SWM_D_WS, "switchws: screen[%d]:%dx%d+%d+%d: %d -> %d\n",
3261             r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), old_ws->idx, wsid);
3262
3263         if (new_ws == NULL || old_ws == NULL)
3264                 return;
3265         if (new_ws == old_ws)
3266                 return;
3267
3268         unfocus_win(old_ws->focus);
3269
3270         other_r = new_ws->r;
3271         if (other_r == NULL) {
3272                 /* the other workspace is hidden, hide this one */
3273                 old_ws->r = NULL;
3274                 unmap_old = 1;
3275         } else {
3276                 /* the other ws is visible in another region, exchange them */
3277                 other_r->ws_prior = new_ws;
3278                 other_r->ws = old_ws;
3279                 old_ws->r = other_r;
3280         }
3281         this_r->ws_prior = old_ws;
3282         this_r->ws = new_ws;
3283         new_ws->r = this_r;
3284
3285         /* Set focus_pending before stacking. */
3286         if (focus_mode != SWM_FOCUS_FOLLOW)
3287                 new_ws->focus_pending = get_region_focus(new_ws->r);
3288
3289         stack();
3290
3291         /* unmap old windows */
3292         if (unmap_old)
3293                 TAILQ_FOREACH(win, &old_ws->winlist, entry)
3294                         unmap_window(win);
3295
3296         /* if workspaces were swapped, then don't wait to set focus */
3297         if (old_ws->r && focus_mode != SWM_FOCUS_FOLLOW) {
3298                 if (new_ws->focus_pending) {
3299                         focus_win(new_ws->focus_pending);
3300                 } else {
3301                         /* Empty region, focus on root. */
3302                         xcb_set_input_focus(conn, XCB_INPUT_FOCUS_PARENT,
3303                             new_ws->r->s[new_ws->r->s->idx].root,
3304                             XCB_CURRENT_TIME);
3305                 }
3306         }
3307
3308         /* Clear bar if new ws is empty. */
3309         if (new_ws->focus_pending == NULL)
3310                 bar_update();
3311
3312         focus_flush();
3313
3314         DNPRINTF(SWM_D_WS, "switchws: done.\n");
3315 }
3316
3317 void
3318 cyclews(struct swm_region *r, union arg *args)
3319 {
3320         union                   arg a;
3321         struct swm_screen       *s = r->s;
3322         int                     cycle_all = 0;
3323
3324         DNPRINTF(SWM_D_WS, "cyclews: id: %d, screen[%d]:%dx%d+%d+%d, ws: %d\n",
3325             args->id, r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
3326
3327         a.id = r->ws->idx;
3328         do {
3329                 switch (args->id) {
3330                 case SWM_ARG_ID_CYCLEWS_UP_ALL:
3331                         cycle_all = 1;
3332                         /* FALLTHROUGH */
3333                 case SWM_ARG_ID_CYCLEWS_UP:
3334                         if (a.id < workspace_limit - 1)
3335                                 a.id++;
3336                         else
3337                                 a.id = 0;
3338                         break;
3339                 case SWM_ARG_ID_CYCLEWS_DOWN_ALL:
3340                         cycle_all = 1;
3341                         /* FALLTHROUGH */
3342                 case SWM_ARG_ID_CYCLEWS_DOWN:
3343                         if (a.id > 0)
3344                                 a.id--;
3345                         else
3346                                 a.id = workspace_limit - 1;
3347                         break;
3348                 default:
3349                         return;
3350                 };
3351
3352                 if (!cycle_all &&
3353                     (!cycle_empty && TAILQ_EMPTY(&s->ws[a.id].winlist)))
3354                         continue;
3355                 if (!cycle_visible && s->ws[a.id].r != NULL)
3356                         continue;
3357
3358                 switchws(r, &a);
3359         } while (a.id != r->ws->idx);
3360 }
3361
3362 void
3363 priorws(struct swm_region *r, union arg *args)
3364 {
3365         union arg               a;
3366
3367         (void)args;
3368
3369         DNPRINTF(SWM_D_WS, "priorws: id: %d, screen[%d]:%dx%d+%d+%d, ws: %d\n",
3370             args->id, r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
3371
3372         if (r->ws_prior == NULL)
3373                 return;
3374
3375         a.id = r->ws_prior->idx;
3376         switchws(r, &a);
3377 }
3378
3379 void
3380 cyclescr(struct swm_region *r, union arg *args)
3381 {
3382         struct ws_win           *nfw;
3383         struct swm_region       *rr = NULL;
3384         int                     i, num_screens;
3385
3386         num_screens = xcb_setup_roots_length(xcb_get_setup(conn));
3387         /* do nothing if we don't have more than one screen */
3388         if (!(num_screens > 1 || outputs > 1))
3389                 return;
3390
3391         i = r->s->idx;
3392         switch (args->id) {
3393         case SWM_ARG_ID_CYCLESC_UP:
3394                 rr = TAILQ_NEXT(r, entry);
3395                 if (rr == NULL)
3396                         rr = TAILQ_FIRST(&screens[i].rl);
3397                 break;
3398         case SWM_ARG_ID_CYCLESC_DOWN:
3399                 rr = TAILQ_PREV(r, swm_region_list, entry);
3400                 if (rr == NULL)
3401                         rr = TAILQ_LAST(&screens[i].rl, swm_region_list);
3402                 break;
3403         default:
3404                 return;
3405         };
3406         if (rr == NULL)
3407                 return;
3408
3409         nfw = get_region_focus(rr);
3410         if (nfw) {
3411                 focus_win(nfw);
3412         } else {
3413                 /* New region is empty; unfocus old region and warp pointer. */
3414                 unfocus_win(r->ws->focus);
3415                 xcb_set_input_focus(conn, XCB_INPUT_FOCUS_PARENT,
3416                                 rr->s[i].root, XCB_CURRENT_TIME);
3417
3418                 /* Clear bar since empty. */
3419                 bar_update();
3420         }
3421
3422         focus_flush();
3423 }
3424
3425 void
3426 sort_windows(struct ws_win_list *wl)
3427 {
3428         struct ws_win           *win, *parent, *nxt;
3429
3430         if (wl == NULL)
3431                 return;
3432
3433         for (win = TAILQ_FIRST(wl); win != TAILQ_END(wl); win = nxt) {
3434                 nxt = TAILQ_NEXT(win, entry);
3435                 if (win->transient) {
3436                         parent = find_window(win->transient);
3437                         if (parent == NULL) {
3438                                 warnx("not possible bug");
3439                                 continue;
3440                         }
3441                         TAILQ_REMOVE(wl, win, entry);
3442                         TAILQ_INSERT_AFTER(wl, parent, win, entry);
3443                 }
3444         }
3445
3446 }
3447
3448 void
3449 swapwin(struct swm_region *r, union arg *args)
3450 {
3451         struct ws_win           *target, *source;
3452         struct ws_win           *cur_focus;
3453         struct ws_win_list      *wl;
3454
3455         DNPRINTF(SWM_D_WS, "swapwin: id: %d, screen[%d]:%dx%d+%d+%d, ws: %d\n",
3456             args->id, r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
3457
3458         cur_focus = r->ws->focus;
3459         if (cur_focus == NULL)
3460                 return;
3461
3462         source = cur_focus;
3463         wl = &source->ws->winlist;
3464
3465         switch (args->id) {
3466         case SWM_ARG_ID_SWAPPREV:
3467                 if (source->transient)
3468                         source = find_window(source->transient);
3469                 target = TAILQ_PREV(source, ws_win_list, entry);
3470                 if (target && target->transient)
3471                         target = find_window(target->transient);
3472                 TAILQ_REMOVE(wl, source, entry);
3473                 if (target == NULL)
3474                         TAILQ_INSERT_TAIL(wl, source, entry);
3475                 else
3476                         TAILQ_INSERT_BEFORE(target, source, entry);
3477                 break;
3478         case SWM_ARG_ID_SWAPNEXT:
3479                 target = TAILQ_NEXT(source, entry);
3480                 /* move the parent and let the sort handle the move */
3481                 if (source->transient)
3482                         source = find_window(source->transient);
3483                 TAILQ_REMOVE(wl, source, entry);
3484                 if (target == NULL)
3485                         TAILQ_INSERT_HEAD(wl, source, entry);
3486                 else
3487                         TAILQ_INSERT_AFTER(wl, target, source, entry);
3488                 break;
3489         case SWM_ARG_ID_SWAPMAIN:
3490                 target = TAILQ_FIRST(wl);
3491                 if (target == source) {
3492                         if (source->ws->focus_prev != NULL &&
3493                             source->ws->focus_prev != target)
3494                                 source = source->ws->focus_prev;
3495                         else
3496                                 return;
3497                 }
3498                 if (target == NULL || source == NULL)
3499                         return;
3500                 source->ws->focus_prev = target;
3501                 TAILQ_REMOVE(wl, target, entry);
3502                 TAILQ_INSERT_BEFORE(source, target, entry);
3503                 TAILQ_REMOVE(wl, source, entry);
3504                 TAILQ_INSERT_HEAD(wl, source, entry);
3505                 break;
3506         case SWM_ARG_ID_MOVELAST:
3507                 TAILQ_REMOVE(wl, source, entry);
3508                 TAILQ_INSERT_TAIL(wl, source, entry);
3509                 break;
3510         default:
3511                 DNPRINTF(SWM_D_MOVE, "swapwin: invalid id: %d\n", args->id);
3512                 return;
3513         }
3514
3515         sort_windows(wl);
3516
3517         stack();
3518
3519         focus_flush();
3520 }
3521
3522 struct ws_win *
3523 get_focus_prev(struct ws_win *win)
3524 {
3525         struct ws_win           *winfocus = NULL;
3526         struct ws_win           *cur_focus = NULL;
3527         struct ws_win_list      *wl = NULL;
3528         struct workspace        *ws = NULL;
3529
3530         if (!(win && win->ws))
3531                 return NULL;
3532
3533         ws = win->ws;
3534         wl = &ws->winlist;
3535         cur_focus = ws->focus;
3536
3537         DNPRINTF(SWM_D_FOCUS, "get_focus_prev: window: 0x%x, cur_focus: 0x%x\n",
3538             WINID(win), WINID(cur_focus));
3539
3540         /* pickle, just focus on whatever */
3541         if (cur_focus == NULL) {
3542                 /* use prev_focus if valid */
3543                 if (ws->focus_prev && ws->focus_prev != cur_focus &&
3544                     find_window(WINID(ws->focus_prev)))
3545                         winfocus = ws->focus_prev;
3546                 goto done;
3547         }
3548
3549         /* if transient focus on parent */
3550         if (cur_focus->transient) {
3551                 winfocus = find_window(cur_focus->transient);
3552                 goto done;
3553         }
3554
3555         /* if in max_stack try harder */
3556         if ((win->quirks & SWM_Q_FOCUSPREV) ||
3557             (ws->cur_layout->flags & SWM_L_FOCUSPREV)) {
3558                 if (cur_focus != ws->focus_prev)
3559                         winfocus = ws->focus_prev;
3560                 else
3561                         winfocus = TAILQ_PREV(win, ws_win_list, entry);
3562                 if (winfocus)
3563                         goto done;
3564         }
3565
3566         DNPRINTF(SWM_D_FOCUS, "get_focus_prev: focus_close: %d\n", focus_close);
3567
3568         if (winfocus == NULL || winfocus == win) {
3569                 switch (focus_close) {
3570                 case SWM_STACK_BOTTOM:
3571                         winfocus = TAILQ_FIRST(wl);
3572                         break;
3573                 case SWM_STACK_TOP:
3574                         winfocus = TAILQ_LAST(wl, ws_win_list);
3575                         break;
3576                 case SWM_STACK_ABOVE:
3577                         if ((winfocus = TAILQ_NEXT(cur_focus, entry)) == NULL) {
3578                                 if (focus_close_wrap)
3579                                         winfocus = TAILQ_FIRST(wl);
3580                                 else
3581                                         winfocus = TAILQ_PREV(cur_focus,
3582                                             ws_win_list, entry);
3583                         }
3584                         break;
3585                 case SWM_STACK_BELOW:
3586                         if ((winfocus = TAILQ_PREV(cur_focus, ws_win_list,
3587                             entry)) == NULL) {
3588                                 if (focus_close_wrap)
3589                                         winfocus = TAILQ_LAST(wl, ws_win_list);
3590                                 else
3591                                         winfocus = TAILQ_NEXT(cur_focus, entry);
3592                         }
3593                         break;
3594                 }
3595         }
3596 done:
3597         if (winfocus == NULL) {
3598                 if (focus_default == SWM_STACK_TOP)
3599                         winfocus = TAILQ_LAST(wl, ws_win_list);
3600                 else
3601                         winfocus = TAILQ_FIRST(wl);
3602         }
3603
3604         kill_refs(win);
3605
3606         return get_focus_magic(winfocus);
3607 }
3608
3609 struct ws_win *
3610 get_region_focus(struct swm_region *r)
3611 {
3612         struct ws_win           *winfocus = NULL;
3613
3614         if (!(r && r->ws))
3615                 return NULL;
3616
3617         if (r->ws->focus && !r->ws->focus->iconic)
3618                 winfocus = r->ws->focus;
3619         else if (r->ws->focus_prev && !r->ws->focus_prev->iconic)
3620                 winfocus = r->ws->focus_prev;
3621         else
3622                 TAILQ_FOREACH(winfocus, &r->ws->winlist, entry)
3623                         if (!winfocus->iconic)
3624                                 break;
3625
3626         return get_focus_magic(winfocus);
3627 }
3628
3629 void
3630 focus(struct swm_region *r, union arg *args)
3631 {
3632         struct ws_win           *head, *cur_focus = NULL, *winfocus = NULL;
3633         struct ws_win_list      *wl = NULL;
3634         struct workspace        *ws = NULL;
3635         int                     all_iconics;
3636
3637         if (!(r && r->ws))
3638                 return;
3639
3640         DNPRINTF(SWM_D_FOCUS, "focus: id: %d\n", args->id);
3641
3642         if ((cur_focus = r->ws->focus) == NULL)
3643                 return;
3644         ws = r->ws;
3645         wl = &ws->winlist;
3646         if (TAILQ_EMPTY(wl))
3647                 return;
3648         /* make sure there is at least one uniconified window */
3649         all_iconics = 1;
3650         TAILQ_FOREACH(winfocus, wl, entry)
3651                 if (!winfocus->iconic) {
3652                         all_iconics = 0;
3653                         break;
3654                 }
3655         if (all_iconics)
3656                 return;
3657
3658         switch (args->id) {
3659         case SWM_ARG_ID_FOCUSPREV:
3660                 head = TAILQ_PREV(cur_focus, ws_win_list, entry);
3661                 if (head == NULL)
3662                         head = TAILQ_LAST(wl, ws_win_list);
3663                 winfocus = head;
3664                 if (WINID(winfocus) == cur_focus->transient) {
3665                         head = TAILQ_PREV(winfocus, ws_win_list, entry);
3666                         if (head == NULL)
3667                                 head = TAILQ_LAST(wl, ws_win_list);
3668                         winfocus = head;
3669                 }
3670
3671                 /* skip iconics */
3672                 if (winfocus && winfocus->iconic) {
3673                         while (winfocus != cur_focus) {
3674                                 if (winfocus == NULL)
3675                                         winfocus = TAILQ_LAST(wl, ws_win_list);
3676                                 if (!winfocus->iconic)
3677                                         break;
3678                                 winfocus = TAILQ_PREV(winfocus, ws_win_list,
3679                                     entry);
3680                         }
3681                 }
3682                 break;
3683
3684         case SWM_ARG_ID_FOCUSNEXT:
3685                 head = TAILQ_NEXT(cur_focus, entry);
3686                 if (head == NULL)
3687                         head = TAILQ_FIRST(wl);
3688                 winfocus = head;
3689
3690                 /* skip iconics */
3691                 if (winfocus && winfocus->iconic) {
3692                         while (winfocus != cur_focus) {
3693                                 if (winfocus == NULL)
3694                                         winfocus = TAILQ_FIRST(wl);
3695                                 if (!winfocus->iconic)
3696                                         break;
3697                                 winfocus = TAILQ_NEXT(winfocus, entry);
3698                         }
3699                 }
3700                 break;
3701
3702         case SWM_ARG_ID_FOCUSMAIN:
3703                 winfocus = TAILQ_FIRST(wl);
3704                 if (winfocus == cur_focus)
3705                         winfocus = cur_focus->ws->focus_prev;
3706                 break;
3707
3708         default:
3709                 return;
3710         }
3711
3712         focus_win(get_focus_magic(winfocus));
3713
3714         focus_flush();
3715 }
3716
3717 void
3718 cycle_layout(struct swm_region *r, union arg *args)
3719 {
3720         struct workspace        *ws = r->ws;
3721
3722         /* suppress unused warning since var is needed */
3723         (void)args;
3724
3725         DNPRINTF(SWM_D_EVENT, "cycle_layout: workspace: %d\n", ws->idx);
3726
3727         ws->cur_layout++;
3728         if (ws->cur_layout->l_stack == NULL)
3729                 ws->cur_layout = &layouts[0];
3730
3731         stack();
3732         bar_update();
3733
3734         focus_win(get_region_focus(r));
3735
3736         focus_flush();
3737 }
3738
3739 void
3740 stack_config(struct swm_region *r, union arg *args)
3741 {
3742         struct workspace        *ws = r->ws;
3743
3744         DNPRINTF(SWM_D_STACK, "stack_config: id: %d workspace: %d\n",
3745             args->id, ws->idx);
3746
3747         if (ws->cur_layout->l_config != NULL)
3748                 ws->cur_layout->l_config(ws, args->id);
3749
3750         if (args->id != SWM_ARG_ID_STACKINIT)
3751                 stack();
3752         bar_update();
3753
3754         focus_flush();
3755 }
3756
3757 void
3758 stack(void) {
3759         struct swm_geometry     g;
3760         struct swm_region       *r;
3761         int                     i, num_screens;
3762 #ifdef SWM_DEBUG
3763         int j;
3764 #endif
3765
3766         DNPRINTF(SWM_D_STACK, "stack: begin\n");
3767
3768         num_screens = xcb_setup_roots_length(xcb_get_setup(conn));
3769         for (i = 0; i < num_screens; i++) {
3770 #ifdef SWM_DEBUG
3771                 j = 0;
3772 #endif
3773                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
3774                         DNPRINTF(SWM_D_STACK, "stack: workspace: %d "
3775                             "(screen: %d, region: %d)\n", r->ws->idx, i, j++);
3776
3777                         /* start with screen geometry, adjust for bar */
3778                         g = r->g;
3779                         g.w -= 2 * border_width;
3780                         g.h -= 2 * border_width;
3781                         if (bar_enabled) {
3782                                 if (!bar_at_bottom)
3783                                         g.y += bar_height;
3784                                 g.h -= bar_height;
3785                         }
3786                         r->ws->cur_layout->l_stack(r->ws, &g);
3787                         r->ws->cur_layout->l_string(r->ws);
3788                         /* save r so we can track region changes */
3789                         r->ws->old_r = r;
3790                 }
3791         }
3792         if (font_adjusted)
3793                 font_adjusted--;
3794
3795         DNPRINTF(SWM_D_STACK, "stack: end\n");
3796 }
3797
3798 void
3799 store_float_geom(struct ws_win *win, struct swm_region *r)
3800 {
3801         if (win == NULL || r == NULL)
3802                 return;
3803
3804         /* retain window geom and region geom */
3805         win->g_float = win->g;
3806         win->g_float.x -= X(r);
3807         win->g_float.y -= Y(r);
3808         win->g_floatvalid = 1;
3809         DNPRINTF(SWM_D_MISC, "store_float_geom: window: 0x%x, g: (%d,%d)"
3810             " %d x %d, g_float: (%d,%d) %d x %d\n", win->id, X(win), Y(win),
3811             WIDTH(win), HEIGHT(win), win->g_float.x, win->g_float.y,
3812             win->g_float.w, win->g_float.h);
3813 }
3814
3815 void
3816 load_float_geom(struct ws_win *win, struct swm_region *r)
3817 {
3818         if (win == NULL || r == NULL)
3819                 return;
3820
3821         if (win->g_floatvalid) {
3822                 win->g = win->g_float;
3823                 X(win) += X(r);
3824                 Y(win) += Y(r);
3825                 DNPRINTF(SWM_D_MISC, "load_float_geom: window: 0x%x, g: (%d,%d)"
3826                     "%d x %d\n", win->id, X(win), Y(win), WIDTH(win),
3827                     HEIGHT(win));
3828         } else {
3829                 DNPRINTF(SWM_D_MISC, "load_float_geom: window: 0x%x, g_float "
3830                     "is not set.\n", win->id);
3831         }
3832 }
3833
3834 void
3835 stack_floater(struct ws_win *win, struct swm_region *r)
3836 {
3837         if (win == NULL)
3838                 return;
3839
3840         DNPRINTF(SWM_D_MISC, "stack_floater: window: 0x%x\n", win->id);
3841
3842         /*
3843          * to allow windows to change their size (e.g. mplayer fs) only retrieve
3844          * geom on ws switches or return from max mode
3845          */
3846         if (win->floatmaxed || (r != r->ws->old_r &&
3847             !(win->ewmh_flags & EWMH_F_FULLSCREEN))) {
3848                 /* update geometry for the new region */
3849                 load_float_geom(win, r);
3850         }
3851
3852         win->floatmaxed = 0;
3853
3854         /*
3855          * if set to fullscreen mode, configure window to maximum size.
3856          */
3857         if (win->ewmh_flags & EWMH_F_FULLSCREEN) {
3858                 if (!win->g_floatvalid)
3859                         store_float_geom(win, win->ws->r);
3860
3861                 win->g = r->g;
3862         }
3863
3864         /*
3865          * remove border on fullscreen floater when in fullscreen mode or when
3866          * the quirk is present.
3867          */
3868         if ((win->ewmh_flags & EWMH_F_FULLSCREEN) ||
3869             ((win->quirks & SWM_Q_FULLSCREEN) &&
3870              (WIDTH(win) >= WIDTH(r)) && (HEIGHT(win) >= HEIGHT(r)))) {
3871                 if (win->bordered) {
3872                         win->bordered = 0;
3873                         X(win) += border_width;
3874                         Y(win) += border_width;
3875                 }
3876         } else if (!win->bordered) {
3877                 win->bordered = 1;
3878                 X(win) -= border_width;
3879                 Y(win) -= border_width;
3880         }
3881
3882         if (win->transient && (win->quirks & SWM_Q_TRANSSZ)) {
3883                 WIDTH(win) = (double)WIDTH(r) * dialog_ratio;
3884                 HEIGHT(win) = (double)HEIGHT(r) * dialog_ratio;
3885         }
3886
3887         if (!win->manual && !(win->ewmh_flags & EWMH_F_FULLSCREEN) &&
3888             !(win->quirks & SWM_Q_ANYWHERE)) {
3889                 /*
3890                  * floaters and transients are auto-centred unless moved,
3891                  * resized or ANYWHERE quirk is set.
3892                  */
3893                 X(win) = X(r) + (WIDTH(r) - WIDTH(win)) /  2 - BORDER(win);
3894                 Y(win) = Y(r) + (HEIGHT(r) - HEIGHT(win)) / 2 - BORDER(win);
3895
3896                 store_float_geom(win, r);
3897         }
3898
3899         /* keep window within region bounds */
3900         constrain_window(win, r, 0);
3901
3902         update_window(win);
3903 }
3904
3905 /*
3906  * Send keystrokes to terminal to decrease/increase the font size as the
3907  * window size changes.
3908  */
3909 void
3910 adjust_font(struct ws_win *win)
3911 {
3912         if (!(win->quirks & SWM_Q_XTERM_FONTADJ) ||
3913             win->floating || win->transient)
3914                 return;
3915
3916         if (win->sh.width_inc && win->last_inc != win->sh.width_inc &&
3917             WIDTH(win) / win->sh.width_inc < term_width &&
3918             win->font_steps < SWM_MAX_FONT_STEPS) {
3919                 win->font_size_boundary[win->font_steps] =
3920                     (win->sh.width_inc * term_width) + win->sh.base_width;
3921                 win->font_steps++;
3922                 font_adjusted++;
3923                 win->last_inc = win->sh.width_inc;
3924                 fake_keypress(win, XK_KP_Subtract, XCB_MOD_MASK_SHIFT);
3925         } else if (win->font_steps && win->last_inc != win->sh.width_inc &&
3926             WIDTH(win) > win->font_size_boundary[win->font_steps - 1]) {
3927                 win->font_steps--;
3928                 font_adjusted++;
3929                 win->last_inc = win->sh.width_inc;
3930                 fake_keypress(win, XK_KP_Add, XCB_MOD_MASK_SHIFT);
3931         }
3932 }
3933
3934 #define SWAPXY(g)       do {                            \
3935         int tmp;                                        \
3936         tmp = (g)->y; (g)->y = (g)->x; (g)->x = tmp;    \
3937         tmp = (g)->h; (g)->h = (g)->w; (g)->w = tmp;    \
3938 } while (0)
3939 void
3940 stack_master(struct workspace *ws, struct swm_geometry *g, int rot, int flip)
3941 {
3942         struct swm_geometry     win_g, r_g = *g;
3943         struct ws_win           *win, *fs_win = NULL;
3944         int                     i, j, s, stacks;
3945         int                     w_inc = 1, h_inc, w_base = 1, h_base;
3946         int                     hrh, extra = 0, h_slice, last_h = 0;
3947         int                     split, colno, winno, mwin, msize, mscale;
3948         int                     remain, missing, v_slice, reconfigure = 0;
3949         int                     bordered = 1;
3950
3951         DNPRINTF(SWM_D_STACK, "stack_master: workspace: %d, rot: %s, "
3952             "flip: %s\n", ws->idx, YESNO(rot), YESNO(flip));
3953
3954         winno = count_win(ws, 0);
3955         if (winno == 0 && count_win(ws, 1) == 0)
3956                 return;
3957
3958         TAILQ_FOREACH(win, &ws->winlist, entry)
3959                 if (!win->transient && !win->floating && !win->iconic)
3960                         break;
3961
3962         if (win == NULL)
3963                 goto notiles;
3964
3965         if (rot) {
3966                 w_inc = win->sh.width_inc;
3967                 w_base = win->sh.base_width;
3968                 mwin = ws->l_state.horizontal_mwin;
3969                 mscale = ws->l_state.horizontal_msize;
3970                 stacks = ws->l_state.horizontal_stacks;
3971                 SWAPXY(&r_g);
3972         } else {
3973                 w_inc = win->sh.height_inc;
3974                 w_base = win->sh.base_height;
3975                 mwin = ws->l_state.vertical_mwin;
3976                 mscale = ws->l_state.vertical_msize;
3977                 stacks = ws->l_state.vertical_stacks;
3978         }
3979         win_g = r_g;
3980
3981         if (stacks > winno - mwin)
3982                 stacks = winno - mwin;
3983         if (stacks < 1)
3984                 stacks = 1;
3985
3986         h_slice = r_g.h / SWM_H_SLICE;
3987         if (mwin && winno > mwin) {
3988                 v_slice = r_g.w / SWM_V_SLICE;
3989
3990                 split = mwin;
3991                 colno = split;
3992                 win_g.w = v_slice * mscale;
3993
3994                 if (w_inc > 1 && w_inc < v_slice) {
3995                         /* adjust for window's requested size increment */
3996                         remain = (win_g.w - w_base) % w_inc;
3997                         win_g.w -= remain;
3998                 }
3999
4000                 msize = win_g.w;
4001                 if (flip)
4002                         win_g.x += r_g.w - msize;
4003         } else {
4004                 msize = -2;
4005                 colno = split = winno / stacks;
4006                 win_g.w = ((r_g.w - (stacks * 2 * border_width) +
4007                     2 * border_width) / stacks);
4008         }
4009         hrh = r_g.h / colno;
4010         extra = r_g.h - (colno * hrh);
4011         win_g.h = hrh - 2 * border_width;
4012
4013         /*  stack all the tiled windows */
4014         i = j = 0, s = stacks;
4015         TAILQ_FOREACH(win, &ws->winlist, entry) {
4016                 if (win->transient || win->floating)
4017                         continue;
4018                 if (win->iconic)
4019                         continue;
4020
4021                 if (win->ewmh_flags & EWMH_F_FULLSCREEN) {
4022                         fs_win = win;
4023                         continue;
4024                 }
4025
4026                 if (split && i == split) {
4027                         colno = (winno - mwin) / stacks;
4028                         if (s <= (winno - mwin) % stacks)
4029                                 colno++;
4030                         split = split + colno;
4031                         hrh = (r_g.h / colno);
4032                         extra = r_g.h - (colno * hrh);
4033                         if (flip)
4034                                 win_g.x = r_g.x;
4035                         else
4036                                 win_g.x += win_g.w + 2 * border_width;
4037                         win_g.w = (r_g.w - msize -
4038                             (stacks * 2 * border_width)) / stacks;
4039                         if (s == 1)
4040                                 win_g.w += (r_g.w - msize -
4041                                     (stacks * 2 * border_width)) % stacks;
4042                         s--;
4043                         j = 0;
4044                 }
4045                 win_g.h = hrh - 2 * border_width;
4046                 if (rot) {
4047                         h_inc = win->sh.width_inc;
4048                         h_base = win->sh.base_width;
4049                 } else {
4050                         h_inc = win->sh.height_inc;
4051                         h_base = win->sh.base_height;
4052                 }
4053                 if (j == colno - 1) {
4054                         win_g.h = hrh + extra;
4055                 } else if (h_inc > 1 && h_inc < h_slice) {
4056                         /* adjust for window's requested size increment */
4057                         remain = (win_g.h - h_base) % h_inc;
4058                         missing = h_inc - remain;
4059
4060                         if (missing <= extra || j == 0) {
4061                                 extra -= missing;
4062                                 win_g.h += missing;
4063                         } else {
4064                                 win_g.h -= remain;
4065                                 extra += remain;
4066                         }
4067                 }
4068
4069                 if (j == 0)
4070                         win_g.y = r_g.y;
4071                 else
4072                         win_g.y += last_h + 2 * border_width;
4073
4074                 if (disable_border && !bar_enabled && winno == 1){
4075                         bordered = 0;
4076                         win_g.w += 2 * border_width;
4077                         win_g.h += 2 * border_width;
4078                 } else {
4079                         bordered = 1;
4080                 }
4081                 if (rot) {
4082                         if (X(win) != win_g.y || Y(win) != win_g.x ||
4083                             WIDTH(win) != win_g.h || HEIGHT(win) != win_g.w) {
4084                                 reconfigure = 1;
4085                                 X(win) = win_g.y;
4086                                 Y(win) = win_g.x;
4087                                 WIDTH(win) = win_g.h;
4088                                 HEIGHT(win) = win_g.w;
4089                         }
4090                 } else {
4091                         if (X(win) != win_g.x || Y(win) != win_g.y ||
4092                             WIDTH(win) != win_g.w || HEIGHT(win) != win_g.h) {
4093                                 reconfigure = 1;
4094                                 X(win) = win_g.x;
4095                                 Y(win) = win_g.y;
4096                                 WIDTH(win) = win_g.w;
4097                                 HEIGHT(win) = win_g.h;
4098                         }
4099                 }
4100
4101                 if (bordered != win->bordered) {
4102                         reconfigure = 1;
4103                         win->bordered = bordered;
4104                 }
4105
4106                 if (reconfigure) {
4107                         adjust_font(win);
4108                         update_window(win);
4109                 }
4110
4111                 map_window(win);
4112
4113                 last_h = win_g.h;
4114                 i++;
4115                 j++;
4116         }
4117
4118 notiles:
4119         /* now, stack all the floaters and transients */
4120         TAILQ_FOREACH(win, &ws->winlist, entry) {
4121                 if (!win->transient && !win->floating)
4122                         continue;
4123                 if (win->iconic)
4124                         continue;
4125                 if (win->ewmh_flags & EWMH_F_FULLSCREEN) {
4126                         fs_win = win;
4127                         continue;
4128                 }
4129
4130                 stack_floater(win, ws->r);
4131                 map_window(win);
4132         }
4133
4134         /* Make sure fs_win is stacked last so it's on top. */
4135         if (fs_win) {
4136                 stack_floater(fs_win, ws->r);
4137                 map_window(fs_win);
4138         }
4139 }
4140
4141 void
4142 vertical_config(struct workspace *ws, int id)
4143 {
4144         DNPRINTF(SWM_D_STACK, "vertical_config: id: %d, workspace: %d\n",
4145             id, ws->idx);
4146
4147         switch (id) {
4148         case SWM_ARG_ID_STACKRESET:
4149         case SWM_ARG_ID_STACKINIT:
4150                 ws->l_state.vertical_msize = SWM_V_SLICE / 2;
4151                 ws->l_state.vertical_mwin = 1;
4152                 ws->l_state.vertical_stacks = 1;
4153                 break;
4154         case SWM_ARG_ID_MASTERSHRINK:
4155                 if (ws->l_state.vertical_msize > 1)
4156                         ws->l_state.vertical_msize--;
4157                 break;
4158         case SWM_ARG_ID_MASTERGROW:
4159                 if (ws->l_state.vertical_msize < SWM_V_SLICE - 1)
4160                         ws->l_state.vertical_msize++;
4161                 break;
4162         case SWM_ARG_ID_MASTERADD:
4163                 ws->l_state.vertical_mwin++;
4164                 break;
4165         case SWM_ARG_ID_MASTERDEL:
4166                 if (ws->l_state.vertical_mwin > 0)
4167                         ws->l_state.vertical_mwin--;
4168                 break;
4169         case SWM_ARG_ID_STACKINC:
4170                 ws->l_state.vertical_stacks++;
4171                 break;
4172         case SWM_ARG_ID_STACKDEC:
4173                 if (ws->l_state.vertical_stacks > 1)
4174                         ws->l_state.vertical_stacks--;
4175                 break;
4176         case SWM_ARG_ID_FLIPLAYOUT:
4177                 ws->l_state.vertical_flip = !ws->l_state.vertical_flip;
4178                 break;
4179         default:
4180                 return;
4181         }
4182 }
4183
4184 void
4185 vertical_stack(struct workspace *ws, struct swm_geometry *g)
4186 {
4187         DNPRINTF(SWM_D_STACK, "vertical_stack: workspace: %d\n", ws->idx);
4188
4189         stack_master(ws, g, 0, ws->l_state.vertical_flip);
4190 }
4191
4192 void
4193 horizontal_config(struct workspace *ws, int id)
4194 {
4195         DNPRINTF(SWM_D_STACK, "horizontal_config: workspace: %d\n", ws->idx);
4196
4197         switch (id) {
4198         case SWM_ARG_ID_STACKRESET:
4199         case SWM_ARG_ID_STACKINIT:
4200                 ws->l_state.horizontal_mwin = 1;
4201                 ws->l_state.horizontal_msize = SWM_H_SLICE / 2;
4202                 ws->l_state.horizontal_stacks = 1;
4203                 break;
4204         case SWM_ARG_ID_MASTERSHRINK:
4205                 if (ws->l_state.horizontal_msize > 1)
4206                         ws->l_state.horizontal_msize--;
4207                 break;
4208         case SWM_ARG_ID_MASTERGROW:
4209                 if (ws->l_state.horizontal_msize < SWM_H_SLICE - 1)
4210                         ws->l_state.horizontal_msize++;
4211                 break;
4212         case SWM_ARG_ID_MASTERADD:
4213                 ws->l_state.horizontal_mwin++;
4214                 break;
4215         case SWM_ARG_ID_MASTERDEL:
4216                 if (ws->l_state.horizontal_mwin > 0)
4217                         ws->l_state.horizontal_mwin--;
4218                 break;
4219         case SWM_ARG_ID_STACKINC:
4220                 ws->l_state.horizontal_stacks++;
4221                 break;
4222         case SWM_ARG_ID_STACKDEC:
4223                 if (ws->l_state.horizontal_stacks > 1)
4224                         ws->l_state.horizontal_stacks--;
4225                 break;
4226         case SWM_ARG_ID_FLIPLAYOUT:
4227                 ws->l_state.horizontal_flip = !ws->l_state.horizontal_flip;
4228                 break;
4229         default:
4230                 return;
4231         }
4232 }
4233
4234 void
4235 horizontal_stack(struct workspace *ws, struct swm_geometry *g)
4236 {
4237         DNPRINTF(SWM_D_STACK, "horizontal_stack: workspace: %d\n", ws->idx);
4238
4239         stack_master(ws, g, 1, ws->l_state.horizontal_flip);
4240 }
4241
4242 /* fullscreen view */
4243 void
4244 max_stack(struct workspace *ws, struct swm_geometry *g)
4245 {
4246         struct swm_geometry     gg = *g;
4247         struct ws_win           *w, *win = NULL, *parent = NULL;
4248         int                     winno, num_screens;
4249
4250         DNPRINTF(SWM_D_STACK, "max_stack: workspace: %d\n", ws->idx);
4251
4252         if (ws == NULL)
4253                 return;
4254
4255         winno = count_win(ws, 0);
4256         if (winno == 0 && count_win(ws, 1) == 0)
4257                 return;
4258
4259         /* Figure out which top level window should be visible. */
4260         if (ws->focus_pending)
4261                 win = ws->focus_pending;
4262         else if (ws->focus)
4263                 win = ws->focus;
4264         else
4265                 win = TAILQ_FIRST(&ws->winlist);
4266
4267         if (win->transient)
4268                 parent = find_window(win->transient);
4269
4270         DNPRINTF(SWM_D_STACK, "max_stack: win: 0x%x\n", win->id);
4271
4272         /* maximize all top level windows */
4273         num_screens = xcb_setup_roots_length(xcb_get_setup(conn));
4274         TAILQ_FOREACH(w, &ws->winlist, entry) {
4275                 if (w->transient || w->iconic)
4276                         continue;
4277
4278                 if (w->floating && !w->floatmaxed) {
4279                         /*
4280                          * retain geometry for retrieval on exit from
4281                          * max_stack mode
4282                          */
4283                         store_float_geom(w, ws->r);
4284                         w->floatmaxed = 1;
4285                 }
4286
4287                 /* only reconfigure if necessary */
4288                 if (X(w) != gg.x || Y(w) != gg.y || WIDTH(w) != gg.w ||
4289                     HEIGHT(w) != gg.h) {
4290                         w->g = gg;
4291                         if (bar_enabled){
4292                                 w->bordered = 1;
4293                         } else {
4294                                 w->bordered = 0;
4295                                 WIDTH(w) += 2 * border_width;
4296                                 HEIGHT(w) += 2 * border_width;
4297                         }
4298
4299                         update_window(w);
4300                 }
4301
4302                 /* Unmap unwanted windows if not multi-screen. */
4303                 if (!(num_screens > 1 || outputs > 1) && (w != win ||
4304                     w != parent || w->transient != win->id))
4305                         unmap_window(w);
4306         }
4307
4308         /* If a parent exists, map it first. */
4309         if (parent) {
4310                 map_window(parent);
4311
4312                 /* Map siblings next. */
4313                 TAILQ_FOREACH(w, &ws->winlist, entry)
4314                         if (w != win && !w->iconic &&
4315                             w->transient == parent->id) {
4316                                 stack_floater(w, ws->r);
4317                                 map_window(w);
4318                         }
4319         }
4320
4321         /* Map focused window. */
4322         map_window(win);
4323
4324         /* Finally, map children of focus window. */
4325         TAILQ_FOREACH(w, &ws->winlist, entry)
4326                 if (w->transient == win->id && !w->iconic) {
4327                         stack_floater(w, ws->r);
4328                         map_window(w);
4329                 }
4330 }
4331
4332 void
4333 send_to_ws(struct swm_region *r, union arg *args)
4334 {
4335         int                     wsid = args->id;
4336         struct ws_win           *win = NULL, *parent;
4337         struct workspace        *ws, *nws, *pws;
4338         char                    ws_idx_str[SWM_PROPLEN];
4339
4340         if (wsid >= workspace_limit)
4341                 return;
4342
4343         if (r && r->ws && r->ws->focus)
4344                 win = r->ws->focus;
4345         else
4346                 return;
4347
4348         if (win->ws->idx == wsid)
4349                 return;
4350
4351         DNPRINTF(SWM_D_MOVE, "send_to_ws: win 0x%x, ws %d -> %d\n", win->id,
4352             win->ws->idx, wsid);
4353
4354         ws = win->ws;
4355         nws = &win->s->ws[wsid];
4356
4357         /* Update the window's workspace property: _SWM_WS */
4358         if (snprintf(ws_idx_str, SWM_PROPLEN, "%d", nws->idx) < SWM_PROPLEN) {
4359                 if (focus_mode != SWM_FOCUS_FOLLOW)
4360                         ws->focus_pending = get_focus_prev(win);
4361
4362                 /* Move the parent if this is a transient window. */
4363                 if (win->transient) {
4364                         parent = find_window(win->transient);
4365                         if (parent) {
4366                                 pws = parent->ws;
4367                                 /* Set new focus in parent's ws if needed. */
4368                                 if (pws->focus == parent) {
4369                                         if (focus_mode != SWM_FOCUS_FOLLOW)
4370                                                 pws->focus_pending =
4371                                                     get_focus_prev(parent);
4372
4373                                         unfocus_win(parent);
4374
4375                                         if (focus_mode != SWM_FOCUS_FOLLOW)
4376                                                 pws->focus = pws->focus_pending;
4377
4378                                         if (focus_mode != SWM_FOCUS_FOLLOW)
4379                                                 pws->focus_pending = NULL;
4380                                 }
4381
4382                                 /* Don't unmap parent if new ws is visible */
4383                                 if (nws->r == NULL)
4384                                         unmap_window(parent);
4385
4386                                 /* Transfer */
4387                                 TAILQ_REMOVE(&ws->winlist, parent, entry);
4388                                 TAILQ_INSERT_TAIL(&nws->winlist, parent, entry);
4389                                 parent->ws = nws;
4390
4391                                 DNPRINTF(SWM_D_PROP, "send_to_ws: set "
4392                                     "property: _SWM_WS: %s\n", ws_idx_str);
4393                                 xcb_change_property(conn, XCB_PROP_MODE_REPLACE,
4394                                     parent->id, a_swm_ws, XCB_ATOM_STRING, 8,
4395                                     strlen(ws_idx_str), ws_idx_str);
4396                         }
4397                 }
4398
4399                 unfocus_win(win);
4400
4401                 /* Don't unmap if new ws is visible */
4402                 if (nws->r == NULL)
4403                         unmap_window(win);
4404
4405                 /* Transfer */
4406                 TAILQ_REMOVE(&ws->winlist, win, entry);
4407                 TAILQ_INSERT_TAIL(&nws->winlist, win, entry);
4408                 win->ws = nws;
4409
4410                 /* Set focus on new ws. */
4411                 unfocus_win(nws->focus);
4412                 nws->focus = win;
4413
4414                 DNPRINTF(SWM_D_PROP, "send_to_ws: set property: _SWM_WS: %s\n",
4415                     ws_idx_str);
4416                 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, win->id,
4417                     a_swm_ws, XCB_ATOM_STRING, 8, strlen(ws_idx_str),
4418                     ws_idx_str);
4419
4420                 /* Restack and set new focus. */
4421                 stack();
4422
4423                 if (focus_mode != SWM_FOCUS_FOLLOW) {
4424                         focus_win(ws->focus_pending);
4425                         ws->focus_pending = NULL;
4426                 }
4427
4428                 focus_flush();
4429         }
4430
4431         DNPRINTF(SWM_D_MOVE, "send_to_ws: done.\n");
4432 }
4433
4434 void
4435 pressbutton(struct swm_region *r, union arg *args)
4436 {
4437         /* suppress unused warning since var is needed */
4438         (void)r;
4439
4440         xcb_test_fake_input(conn, XCB_BUTTON_PRESS, args->id,
4441             XCB_CURRENT_TIME, XCB_WINDOW_NONE, 0, 0, 0);
4442         xcb_test_fake_input(conn, XCB_BUTTON_RELEASE, args->id,
4443             XCB_CURRENT_TIME, XCB_WINDOW_NONE, 0, 0, 0);
4444 }
4445
4446 void
4447 raise_toggle(struct swm_region *r, union arg *args)
4448 {
4449         /* suppress unused warning since var is needed */
4450         (void)args;
4451
4452         if (r == NULL || r->ws == NULL)
4453                 return;
4454
4455         r->ws->always_raise = !r->ws->always_raise;
4456
4457         /* bring floaters back to top */
4458         if (!r->ws->always_raise)
4459                 stack();
4460
4461         focus_flush();
4462 }
4463
4464 void
4465 iconify(struct swm_region *r, union arg *args)
4466 {
4467         /* suppress unused warning since var is needed */
4468         (void)args;
4469
4470         if (r->ws->focus == NULL)
4471                 return;
4472
4473         set_swm_iconic(r->ws->focus, 1);
4474
4475         xcb_flush(conn);
4476 }
4477
4478 char *
4479 get_win_name(xcb_window_t win)
4480 {
4481         char                            *name = NULL;
4482         xcb_get_property_cookie_t       c;
4483         xcb_get_property_reply_t        *r;
4484
4485         /* First try _NET_WM_NAME for UTF-8. */
4486         c = xcb_get_property(conn, 0, win, a_netwmname,
4487             XCB_GET_PROPERTY_TYPE_ANY, 0, UINT_MAX);
4488         r = xcb_get_property_reply(conn, c, NULL);
4489
4490         if (!r || r->type == XCB_NONE) {
4491                 free(r);
4492                 /* Use WM_NAME instead; no UTF-8. */
4493                 c = xcb_get_property(conn, 0, win, XCB_ATOM_WM_NAME,
4494                     XCB_GET_PROPERTY_TYPE_ANY, 0, UINT_MAX);
4495                 r = xcb_get_property_reply(conn, c, NULL);
4496
4497                 if(!r || r->type == XCB_NONE) {
4498                         free(r);
4499                         return NULL;
4500                 }
4501         }
4502
4503         if (r->length > 0)
4504                 name = strndup(xcb_get_property_value(r),
4505                     xcb_get_property_value_length(r));
4506
4507         free(r);
4508         return (name);
4509 }
4510
4511 void
4512 uniconify(struct swm_region *r, union arg *args)
4513 {
4514         struct ws_win           *win;
4515         FILE                    *lfile;
4516         char                    *name;
4517         int                     count = 0;
4518
4519         DNPRINTF(SWM_D_MISC, "uniconify\n");
4520
4521         if (r == NULL || r->ws == NULL)
4522                 return;
4523
4524         /* make sure we have anything to uniconify */
4525         TAILQ_FOREACH(win, &r->ws->winlist, entry) {
4526                 if (win->ws == NULL)
4527                         continue; /* should never happen */
4528                 if (!win->iconic)
4529                         continue;
4530                 count++;
4531         }
4532         if (count == 0)
4533                 return;
4534
4535         search_r = r;
4536         search_resp_action = SWM_SEARCH_UNICONIFY;
4537
4538         spawn_select(r, args, "search", &searchpid);
4539
4540         if ((lfile = fdopen(select_list_pipe[1], "w")) == NULL)
4541                 return;
4542
4543         TAILQ_FOREACH(win, &r->ws->winlist, entry) {
4544                 if (win->ws == NULL)
4545                         continue; /* should never happen */
4546                 if (!win->iconic)
4547                         continue;
4548
4549                 name = get_win_name(win->id);
4550                 if (name == NULL)
4551                         continue;
4552                 fprintf(lfile, "%s.%u\n", name, win->id);
4553                 free(name);
4554         }
4555
4556         fclose(lfile);
4557 }
4558
4559 void
4560 name_workspace(struct swm_region *r, union arg *args)
4561 {
4562         FILE                    *lfile;
4563
4564         DNPRINTF(SWM_D_MISC, "name_workspace\n");
4565
4566         if (r == NULL)
4567                 return;
4568
4569         search_r = r;
4570         search_resp_action = SWM_SEARCH_NAME_WORKSPACE;
4571
4572         spawn_select(r, args, "name_workspace", &searchpid);
4573
4574         if ((lfile = fdopen(select_list_pipe[1], "w")) == NULL)
4575                 return;
4576
4577         fprintf(lfile, "%s", "");
4578         fclose(lfile);
4579 }
4580
4581 void
4582 search_workspace(struct swm_region *r, union arg *args)
4583 {
4584         int                     i;
4585         struct workspace        *ws;
4586         FILE                    *lfile;
4587
4588         DNPRINTF(SWM_D_MISC, "search_workspace\n");
4589
4590         if (r == NULL)
4591                 return;
4592
4593         search_r = r;
4594         search_resp_action = SWM_SEARCH_SEARCH_WORKSPACE;
4595
4596         spawn_select(r, args, "search", &searchpid);
4597
4598         if ((lfile = fdopen(select_list_pipe[1], "w")) == NULL)
4599                 return;
4600
4601         for (i = 0; i < workspace_limit; i++) {
4602                 ws = &r->s->ws[i];
4603                 if (ws == NULL)
4604                         continue;
4605                 fprintf(lfile, "%d%s%s\n", ws->idx + 1,
4606                     (ws->name ? ":" : ""), (ws->name ? ws->name : ""));
4607         }
4608
4609         fclose(lfile);
4610 }
4611
4612 void
4613 search_win_cleanup(void)
4614 {
4615         struct search_window    *sw = NULL;
4616
4617         while ((sw = TAILQ_FIRST(&search_wl)) != NULL) {
4618                 xcb_destroy_window(conn, sw->indicator);
4619                 TAILQ_REMOVE(&search_wl, sw, entry);
4620                 free(sw);
4621         }
4622 }
4623
4624 void
4625 search_win(struct swm_region *r, union arg *args)
4626 {
4627         struct ws_win           *win = NULL;
4628         struct search_window    *sw = NULL;
4629         xcb_window_t            w;
4630         uint32_t                wa[2];
4631         int                     i, width, height;
4632         char                    s[8];
4633         FILE                    *lfile;
4634         size_t                  len;
4635         XftDraw                 *draw;
4636         XGlyphInfo              info;
4637         GC                      l_draw;
4638         XGCValues               l_gcv;
4639         XRectangle              l_ibox, l_lbox;
4640
4641         DNPRINTF(SWM_D_MISC, "search_win\n");
4642
4643         search_r = r;
4644         search_resp_action = SWM_SEARCH_SEARCH_WINDOW;
4645
4646         spawn_select(r, args, "search", &searchpid);
4647
4648         if ((lfile = fdopen(select_list_pipe[1], "w")) == NULL)
4649                 return;
4650
4651         TAILQ_INIT(&search_wl);
4652
4653         i = 1;
4654         TAILQ_FOREACH(win, &r->ws->winlist, entry) {
4655                 if (win->iconic)
4656                         continue;
4657
4658                 sw = calloc(1, sizeof(struct search_window));
4659                 if (sw == NULL) {
4660                         warn("search_win: calloc");
4661                         fclose(lfile);
4662                         search_win_cleanup();
4663                         return;
4664                 }
4665                 sw->idx = i;
4666                 sw->win = win;
4667
4668                 snprintf(s, sizeof s, "%d", i);
4669                 len = strlen(s);
4670
4671                 w = xcb_generate_id(conn);
4672                 wa[0] = r->s->c[SWM_S_COLOR_FOCUS].pixel;
4673                 wa[1] = r->s->c[SWM_S_COLOR_UNFOCUS].pixel;
4674
4675                 if (bar_font_legacy) {
4676                         XmbTextExtents(bar_fs, s, len, &l_ibox, &l_lbox);
4677                         width = l_lbox.width + 4;
4678                         height = bar_fs_extents->max_logical_extent.height + 4;
4679                 } else {
4680                         XftTextExtentsUtf8(display, bar_font, (FcChar8 *)s, len,
4681                             &info);
4682                         width = info.width + 4;
4683                         height = bar_font->height + 4;
4684                 }
4685
4686                 xcb_create_window(conn, XCB_COPY_FROM_PARENT, w, win->id, 0, 0,
4687                     width, height, 1, XCB_WINDOW_CLASS_INPUT_OUTPUT,
4688                     XCB_COPY_FROM_PARENT, XCB_CW_BACK_PIXEL |
4689                     XCB_CW_BORDER_PIXEL, wa);
4690
4691                 xcb_map_window(conn, w);
4692
4693                 sw->indicator = w;
4694                 TAILQ_INSERT_TAIL(&search_wl, sw, entry);
4695
4696                 if (bar_font_legacy) {
4697                         l_gcv.graphics_exposures = 0;
4698                         l_draw = XCreateGC(display, w, 0, &l_gcv);
4699
4700                         XSetForeground(display, l_draw,
4701                                 r->s->c[SWM_S_COLOR_BAR].pixel);
4702
4703                         DRAWSTRING(display, w, bar_fs, l_draw, 2,
4704                             (bar_fs_extents->max_logical_extent.height -
4705                             l_lbox.height) / 2 - l_lbox.y, s, len);
4706
4707                         XFreeGC(display, l_draw);
4708                 } else {
4709
4710                         draw = XftDrawCreate(display, w,
4711                             DefaultVisual(display, r->s->idx),
4712                             DefaultColormap(display, r->s->idx));
4713
4714                         XftDrawStringUtf8(draw, &bar_font_color, bar_font, 2,
4715                             (HEIGHT(r->bar) + bar_font->height) / 2 -
4716                             bar_font->descent, (FcChar8 *)s, len);
4717
4718                         XftDrawDestroy(draw);
4719                 }
4720
4721                 DNPRINTF(SWM_D_MISC, "search_win: mapped window: 0x%x\n", w);
4722
4723                 fprintf(lfile, "%d\n", i);
4724                 i++;
4725         }
4726
4727         fclose(lfile);
4728
4729         xcb_flush(conn);
4730 }
4731
4732 void
4733 search_resp_uniconify(const char *resp, unsigned long len)
4734 {
4735         char                    *name;
4736         struct ws_win           *win;
4737         char                    *s;
4738
4739         DNPRINTF(SWM_D_MISC, "search_resp_uniconify: resp: %s\n", resp);
4740
4741         TAILQ_FOREACH(win, &search_r->ws->winlist, entry) {
4742                 if (!win->iconic)
4743                         continue;
4744                 name = get_win_name(win->id);
4745                 if (name == NULL)
4746                         continue;
4747                 if (asprintf(&s, "%s.%u", name, win->id) == -1) {
4748                         free(name);
4749                         continue;
4750                 }
4751                 free(name);
4752                 if (strncmp(s, resp, len) == 0) {
4753                         /* XXX this should be a callback to generalize */
4754                         set_swm_iconic(win, 0);
4755                         free(s);
4756                         break;
4757                 }
4758                 free(s);
4759         }
4760 }
4761
4762 void
4763 search_resp_name_workspace(const char *resp, unsigned long len)
4764 {
4765         struct workspace        *ws;
4766
4767         DNPRINTF(SWM_D_MISC, "search_resp_name_workspace: resp: %s\n", resp);
4768
4769         if (search_r->ws == NULL)
4770                 return;
4771         ws = search_r->ws;
4772
4773         if (ws->name) {
4774                 free(search_r->ws->name);
4775                 search_r->ws->name = NULL;
4776         }
4777
4778         if (len > 1) {
4779                 ws->name = strdup(resp);
4780                 if (ws->name == NULL) {
4781                         DNPRINTF(SWM_D_MISC, "search_resp_name_workspace: "
4782                             "strdup: %s", strerror(errno));
4783                         return;
4784                 }
4785         }
4786 }
4787
4788 void
4789 search_resp_search_workspace(const char *resp)
4790 {
4791         char                    *p, *q;
4792         int                     ws_idx;
4793         const char              *errstr;
4794         union arg               a;
4795
4796         DNPRINTF(SWM_D_MISC, "search_resp_search_workspace: resp: %s\n", resp);
4797
4798         q = strdup(resp);
4799         if (!q) {
4800                 DNPRINTF(SWM_D_MISC, "search_resp_search_workspace: strdup: %s",
4801                     strerror(errno));
4802                 return;
4803         }
4804         p = strchr(q, ':');
4805         if (p != NULL)
4806                 *p = '\0';
4807         ws_idx = (int)strtonum(q, 1, workspace_limit, &errstr);
4808         if (errstr) {
4809                 DNPRINTF(SWM_D_MISC, "workspace idx is %s: %s",
4810                     errstr, q);
4811                 free(q);
4812                 return;
4813         }
4814         free(q);
4815         a.id = ws_idx - 1;
4816         switchws(search_r, &a);
4817 }
4818
4819 void
4820 search_resp_search_window(const char *resp)
4821 {
4822         char                    *s;
4823         int                     idx;
4824         const char              *errstr;
4825         struct search_window    *sw;
4826
4827         DNPRINTF(SWM_D_MISC, "search_resp_search_window: resp: %s\n", resp);
4828
4829         s = strdup(resp);
4830         if (!s) {
4831                 DNPRINTF(SWM_D_MISC, "search_resp_search_window: strdup: %s",
4832                     strerror(errno));
4833                 return;
4834         }
4835
4836         idx = (int)strtonum(s, 1, INT_MAX, &errstr);
4837         if (errstr) {
4838                 DNPRINTF(SWM_D_MISC, "window idx is %s: %s",
4839                     errstr, s);
4840                 free(s);
4841                 return;
4842         }
4843         free(s);
4844
4845         TAILQ_FOREACH(sw, &search_wl, entry)
4846                 if (idx == sw->idx) {
4847                         focus_win(sw->win);
4848                         break;
4849                 }
4850 }
4851
4852 #define MAX_RESP_LEN    1024
4853
4854 void
4855 search_do_resp(void)
4856 {
4857         ssize_t                 rbytes;
4858         char                    *resp;
4859         unsigned long           len;
4860
4861         DNPRINTF(SWM_D_MISC, "search_do_resp:\n");
4862
4863         search_resp = 0;
4864         searchpid = 0;
4865
4866         if ((resp = calloc(1, MAX_RESP_LEN + 1)) == NULL) {
4867                 warn("search: calloc");
4868                 goto done;
4869         }
4870
4871         rbytes = read(select_resp_pipe[0], resp, MAX_RESP_LEN);
4872         if (rbytes <= 0) {
4873                 warn("search: read error");
4874                 goto done;
4875         }
4876         resp[rbytes] = '\0';
4877
4878         /* XXX:
4879          * Older versions of dmenu (Atleast pre 4.4.1) do not send a
4880          * newline, so work around that by sanitizing the resp now.
4881          */
4882         resp[strcspn(resp, "\n")] = '\0';
4883         len = strlen(resp);
4884
4885         switch (search_resp_action) {
4886         case SWM_SEARCH_UNICONIFY:
4887                 search_resp_uniconify(resp, len);
4888                 break;
4889         case SWM_SEARCH_NAME_WORKSPACE:
4890                 search_resp_name_workspace(resp, len);
4891                 break;
4892         case SWM_SEARCH_SEARCH_WORKSPACE:
4893                 search_resp_search_workspace(resp);
4894                 break;
4895         case SWM_SEARCH_SEARCH_WINDOW:
4896                 search_resp_search_window(resp);
4897                 break;
4898         }
4899
4900 done:
4901         if (search_resp_action == SWM_SEARCH_SEARCH_WINDOW)
4902                 search_win_cleanup();
4903
4904         search_resp_action = SWM_SEARCH_NONE;
4905         close(select_resp_pipe[0]);
4906         free(resp);
4907
4908         xcb_flush(conn);
4909 }
4910
4911 void
4912 wkill(struct swm_region *r, union arg *args)
4913 {
4914         DNPRINTF(SWM_D_MISC, "wkill: id: %d\n", args->id);
4915
4916         if (r->ws->focus == NULL)
4917                 return;
4918
4919         if (args->id == SWM_ARG_ID_KILLWINDOW)
4920                 xcb_kill_client(conn, r->ws->focus->id);
4921         else
4922                 if (r->ws->focus->can_delete)
4923                         client_msg(r->ws->focus, a_delete, 0);
4924
4925         focus_flush();
4926 }
4927
4928 int
4929 floating_toggle_win(struct ws_win *win)
4930 {
4931         struct swm_region       *r;
4932
4933         if (win == NULL)
4934                 return (0);
4935
4936         if (!win->ws->r)
4937                 return (0);
4938
4939         r = win->ws->r;
4940
4941         /* reject floating toggles in max stack mode */
4942         if (win->ws->cur_layout == &layouts[SWM_MAX_STACK])
4943                 return (0);
4944
4945         if (win->floating) {
4946                 if (!win->floatmaxed) {
4947                         /* retain position for refloat */
4948                         store_float_geom(win, r);
4949                 }
4950                 win->floating = 0;
4951         } else {
4952                 load_float_geom(win, r);
4953                 win->floating = 1;
4954         }
4955
4956         ewmh_update_actions(win);
4957
4958         return (1);
4959 }
4960
4961 void
4962 floating_toggle(struct swm_region *r, union arg *args)
4963 {
4964         struct ws_win           *win = r->ws->focus;
4965
4966         /* suppress unused warning since var is needed */
4967         (void)args;
4968
4969         if (win == NULL)
4970                 return;
4971
4972         if (win->ewmh_flags & EWMH_F_FULLSCREEN)
4973                 return;
4974
4975         ewmh_update_win_state(win, ewmh[_NET_WM_STATE_ABOVE].atom,
4976             _NET_WM_STATE_TOGGLE);
4977
4978         stack();
4979
4980         if (win == win->ws->focus)
4981                 focus_win(win);
4982
4983         focus_flush();
4984 }
4985
4986 void
4987 constrain_window(struct ws_win *win, struct swm_region *r, int resizable)
4988 {
4989         if (MAX_X(win) + BORDER(win) > MAX_X(r)) {
4990                 if (resizable)
4991                         WIDTH(win) = MAX_X(r) - X(win) - BORDER(win);
4992                 else
4993                         X(win) = MAX_X(r)- WIDTH(win) - BORDER(win);
4994         }
4995
4996         if (X(win) + BORDER(win) < X(r)) {
4997                 if (resizable)
4998                         WIDTH(win) -= X(r) - X(win) - BORDER(win);
4999
5000                 X(win) = X(r) - BORDER(win);
5001         }
5002
5003         if (MAX_Y(win) + BORDER(win) > MAX_Y(r)) {
5004                 if (resizable)
5005                         HEIGHT(win) = MAX_Y(r) - Y(win) - BORDER(win);
5006                 else
5007                         Y(win) = MAX_Y(r) - HEIGHT(win) - BORDER(win);
5008         }
5009
5010         if (Y(win) + BORDER(win) < Y(r)) {
5011                 if (resizable)
5012                         HEIGHT(win) -= Y(r) - Y(win) - BORDER(win);
5013
5014                 Y(win) = Y(r) - BORDER(win);
5015         }
5016
5017         if (resizable) {
5018                 if (WIDTH(win) < 1)
5019                         WIDTH(win) = 1;
5020                 if (HEIGHT(win) < 1)
5021                         HEIGHT(win) = 1;
5022         }
5023 }
5024
5025 void
5026 update_window(struct ws_win *win)
5027 {
5028         uint16_t        mask;
5029         uint32_t        wc[5];
5030
5031         mask = XCB_CONFIG_WINDOW_X | XCB_CONFIG_WINDOW_Y |
5032             XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT |
5033             XCB_CONFIG_WINDOW_BORDER_WIDTH;
5034         wc[0] = X(win);
5035         wc[1] = Y(win);
5036         wc[2] = WIDTH(win);
5037         wc[3] = HEIGHT(win);
5038         wc[4] = BORDER(win);
5039
5040         DNPRINTF(SWM_D_EVENT, "update_window: window: 0x%x, (x,y) w x h: "
5041             "(%d,%d) %d x %d, bordered: %s\n", win->id, wc[0], wc[1], wc[2],
5042             wc[3], YESNO(win->bordered));
5043
5044         xcb_configure_window(conn, win->id, mask, wc);
5045 }
5046
5047 #define SWM_RESIZE_STEPS        (50)
5048
5049 void
5050 resize(struct ws_win *win, union arg *args)
5051 {
5052         xcb_timestamp_t         timestamp = 0;
5053         struct swm_region       *r = NULL;
5054         int                     resize_stp = 0;
5055         struct swm_geometry     g;
5056         int                     top = 0, left = 0, resizing;
5057         int                     dx, dy;
5058         xcb_cursor_t                    cursor;
5059         xcb_query_pointer_reply_t       *xpr;
5060         xcb_generic_event_t             *evt;
5061         xcb_motion_notify_event_t       *mne;
5062
5063         if (win == NULL)
5064                 return;
5065         r = win->ws->r;
5066
5067         if (win->ewmh_flags & EWMH_F_FULLSCREEN)
5068                 return;
5069
5070         DNPRINTF(SWM_D_EVENT, "resize: window: 0x%x, floating: %s, "
5071             "transient: 0x%x\n", win->id, YESNO(win->floating),
5072             win->transient);
5073
5074         if (!win->transient && !win->floating)
5075                 return;
5076
5077         /* reject resizes in max mode for floaters (transient ok) */
5078         if (win->floatmaxed)
5079                 return;
5080
5081         win->manual = 1;
5082         ewmh_update_win_state(win, ewmh[_SWM_WM_STATE_MANUAL].atom,
5083             _NET_WM_STATE_ADD);
5084
5085         stack();
5086
5087         focus_flush();
5088
5089         switch (args->id) {
5090         case SWM_ARG_ID_WIDTHSHRINK:
5091                 WIDTH(win) -= SWM_RESIZE_STEPS;
5092                 resize_stp = 1;
5093                 break;
5094         case SWM_ARG_ID_WIDTHGROW:
5095                 WIDTH(win) += SWM_RESIZE_STEPS;
5096                 resize_stp = 1;
5097                 break;
5098         case SWM_ARG_ID_HEIGHTSHRINK:
5099                 HEIGHT(win) -= SWM_RESIZE_STEPS;
5100                 resize_stp = 1;
5101                 break;
5102         case SWM_ARG_ID_HEIGHTGROW:
5103                 HEIGHT(win) += SWM_RESIZE_STEPS;
5104                 resize_stp = 1;
5105                 break;
5106         default:
5107                 break;
5108         }
5109         if (resize_stp) {
5110                 constrain_window(win, r, 1);
5111                 update_window(win);
5112                 store_float_geom(win,r);
5113                 return;
5114         }
5115
5116         /* get cursor offset from window root */
5117         xpr = xcb_query_pointer_reply(conn, xcb_query_pointer(conn, win->id),
5118             NULL);
5119         if (!xpr)
5120                 return;
5121
5122         g = win->g;
5123
5124         if (xpr->win_x < WIDTH(win) / 2)
5125                 left = 1;
5126
5127         if (xpr->win_y < HEIGHT(win) / 2)
5128                 top = 1;
5129
5130         if (args->id == SWM_ARG_ID_CENTER)
5131                 cursor = cursors[XC_SIZING].cid;
5132         else if (top)
5133                 cursor = cursors[left ? XC_TOP_LEFT_CORNER :
5134                     XC_TOP_RIGHT_CORNER].cid;
5135         else
5136                 cursor = cursors[left ? XC_BOTTOM_LEFT_CORNER :
5137                     XC_BOTTOM_RIGHT_CORNER].cid;
5138
5139         xcb_grab_pointer(conn, 0, win->id, MOUSEMASK,
5140             XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC, XCB_WINDOW_NONE, cursor,
5141             XCB_CURRENT_TIME),
5142
5143         xcb_flush(conn);
5144         resizing = 1;
5145         while ((evt = xcb_wait_for_event(conn)) && resizing) {
5146                 switch (XCB_EVENT_RESPONSE_TYPE(evt)) {
5147                 case XCB_BUTTON_RELEASE:
5148                         DNPRINTF(SWM_D_EVENT, "resize: BUTTON_RELEASE\n");
5149                         resizing = 0;
5150                         break;
5151                 case XCB_MOTION_NOTIFY:
5152                         mne = (xcb_motion_notify_event_t *)evt;
5153                         /* cursor offset/delta from start of the operation */
5154                         dx = mne->root_x - xpr->root_x;
5155                         dy = mne->root_y - xpr->root_y;
5156
5157                         /* vertical */
5158                         if (top)
5159                                 dy = -dy;
5160
5161                         if (args->id == SWM_ARG_ID_CENTER) {
5162                                 if (g.h / 2 + dy < 1)
5163                                         dy = 1 - g.h / 2;
5164
5165                                 Y(win) = g.y - dy;
5166                                 HEIGHT(win) = g.h + 2 * dy;
5167                         } else {
5168                                 if (g.h + dy < 1)
5169                                         dy = 1 - g.h;
5170
5171                                 if (top)
5172                                         Y(win) = g.y - dy;
5173
5174                                 HEIGHT(win) = g.h + dy;
5175                         }
5176
5177                         /* horizontal */
5178                         if (left)
5179                                 dx = -dx;
5180
5181                         if (args->id == SWM_ARG_ID_CENTER) {
5182                                 if (g.w / 2 + dx < 1)
5183                                         dx = 1 - g.w / 2;
5184
5185                                 X(win) = g.x - dx;
5186                                 WIDTH(win) = g.w + 2 * dx;
5187                         } else {
5188                                 if (g.w + dx < 1)
5189                                         dx = 1 - g.w;
5190
5191                                 if (left)
5192                                         X(win) = g.x - dx;
5193
5194                                 WIDTH(win) = g.w + dx;
5195                         }
5196
5197                         constrain_window(win, r, 1);
5198
5199                         /* not free, don't sync more than 120 times / second */
5200                         if ((mne->time - timestamp) > (1000 / 120) ) {
5201                                 timestamp = mne->time;
5202                                 update_window(win);
5203                                 xcb_flush(conn);
5204                         }
5205                         break;
5206                 default:
5207                         event_handle(evt);
5208                         break;
5209                 }
5210                 free(evt);
5211         }
5212         if (timestamp) {
5213                 update_window(win);
5214                 xcb_flush(conn);
5215         }
5216         store_float_geom(win,r);
5217
5218         xcb_ungrab_pointer(conn, XCB_CURRENT_TIME);
5219         free(xpr);
5220         DNPRINTF(SWM_D_EVENT, "resize: done.\n");
5221 }
5222
5223 void
5224 resize_step(struct swm_region *r, union arg *args)
5225 {
5226         struct ws_win           *win = NULL;
5227
5228         if (r && r->ws && r->ws->focus)
5229                 win = r->ws->focus;
5230         else
5231                 return;
5232
5233         resize(win, args);
5234         focus_flush();
5235 }
5236
5237 #define SWM_MOVE_STEPS  (50)
5238
5239 void
5240 move(struct ws_win *win, union arg *args)
5241 {
5242         xcb_timestamp_t         timestamp = 0;
5243         int                     move_stp = 0, moving;
5244         struct swm_region       *r = NULL;
5245         xcb_query_pointer_reply_t       *qpr;
5246         xcb_generic_event_t             *evt;
5247         xcb_motion_notify_event_t       *mne;
5248
5249         if (win == NULL)
5250                 return;
5251         r = win->ws->r;
5252
5253         if (win->ewmh_flags & EWMH_F_FULLSCREEN)
5254                 return;
5255
5256         DNPRINTF(SWM_D_EVENT, "move: window: 0x%x, floating: %s, transient: "
5257             "0x%x\n", win->id, YESNO(win->floating), win->transient);
5258
5259         /* in max_stack mode should only move transients */
5260         if (win->ws->cur_layout == &layouts[SWM_MAX_STACK] && !win->transient)
5261                 return;
5262
5263         win->manual = 1;
5264         if (!win->floating && !win->transient) {
5265                 store_float_geom(win, r);
5266                 ewmh_update_win_state(win, ewmh[_NET_WM_STATE_ABOVE].atom,
5267                     _NET_WM_STATE_ADD);
5268         }
5269         ewmh_update_win_state(win, ewmh[_SWM_WM_STATE_MANUAL].atom,
5270             _NET_WM_STATE_ADD);
5271
5272         stack();
5273
5274         focus_flush();
5275
5276         move_stp = 0;
5277         switch (args->id) {
5278         case SWM_ARG_ID_MOVELEFT:
5279                 X(win) -= (SWM_MOVE_STEPS - border_width);
5280                 move_stp = 1;
5281                 break;
5282         case SWM_ARG_ID_MOVERIGHT:
5283                 X(win) += (SWM_MOVE_STEPS - border_width);
5284                 move_stp = 1;
5285                 break;
5286         case SWM_ARG_ID_MOVEUP:
5287                 Y(win) -= (SWM_MOVE_STEPS - border_width);
5288                 move_stp = 1;
5289                 break;
5290         case SWM_ARG_ID_MOVEDOWN:
5291                 Y(win) += (SWM_MOVE_STEPS - border_width);
5292                 move_stp = 1;
5293                 break;
5294         default:
5295                 break;
5296         }
5297         if (move_stp) {
5298                 constrain_window(win, r, 0);
5299                 update_window(win);
5300                 store_float_geom(win, r);
5301                 return;
5302         }
5303
5304         xcb_grab_pointer(conn, 0, win->id, MOUSEMASK,
5305             XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC,
5306             XCB_WINDOW_NONE, cursors[XC_FLEUR].cid, XCB_CURRENT_TIME);
5307
5308         /* get cursor offset from window root */
5309         qpr = xcb_query_pointer_reply(conn, xcb_query_pointer(conn, win->id),
5310                 NULL);
5311         if (!qpr) {
5312                 xcb_ungrab_pointer(conn, XCB_CURRENT_TIME);
5313                 return;
5314         }
5315
5316         xcb_flush(conn);
5317         moving = 1;
5318         while ((evt = xcb_wait_for_event(conn)) && moving) {
5319                 switch (XCB_EVENT_RESPONSE_TYPE(evt)) {
5320                 case XCB_BUTTON_RELEASE:
5321                         DNPRINTF(SWM_D_EVENT, "move: BUTTON_RELEASE\n");
5322                         moving = 0;
5323                         break;
5324                 case XCB_MOTION_NOTIFY:
5325                         mne = (xcb_motion_notify_event_t *)evt;
5326                         X(win) = mne->root_x - qpr->win_x - border_width;
5327                         Y(win) = mne->root_y - qpr->win_y - border_width;
5328
5329                         constrain_window(win, r, 0);
5330
5331                         /* not free, don't sync more than 120 times / second */
5332                         if ((mne->time - timestamp) > (1000 / 120) ) {
5333                                 timestamp = mne->time;
5334                                 update_window(win);
5335                                 xcb_flush(conn);
5336                         }
5337                         break;
5338                 default:
5339                         event_handle(evt);
5340                         break;
5341                 }
5342                 free(evt);
5343         }
5344         if (timestamp) {
5345                 update_window(win);
5346                 xcb_flush(conn);
5347         }
5348         store_float_geom(win, r);
5349         free(qpr);
5350         xcb_ungrab_pointer(conn, XCB_CURRENT_TIME);
5351         DNPRINTF(SWM_D_EVENT, "move: done.\n");
5352 }
5353
5354 void
5355 move_step(struct swm_region *r, union arg *args)
5356 {
5357         struct ws_win           *win = NULL;
5358
5359         if (r && r->ws && r->ws->focus)
5360                 win = r->ws->focus;
5361         else
5362                 return;
5363
5364         if (!win->transient && !win->floating)
5365                 return;
5366
5367         move(win, args);
5368         focus_flush();
5369 }
5370
5371 /* key definitions */
5372 struct keyfunc {
5373         char                    name[SWM_FUNCNAME_LEN];
5374         void                    (*func)(struct swm_region *r, union arg *);
5375         union arg               args;
5376 } keyfuncs[KF_INVALID + 1] = {
5377         /* name                 function        argument */
5378         { "bar_toggle",         bar_toggle,     {0} },
5379         { "button2",            pressbutton,    {2} },
5380         { "cycle_layout",       cycle_layout,   {0} },
5381         { "flip_layout",        stack_config,   {.id = SWM_ARG_ID_FLIPLAYOUT} },
5382         { "float_toggle",       floating_toggle,{0} },
5383         { "focus_main",         focus,          {.id = SWM_ARG_ID_FOCUSMAIN} },
5384         { "focus_next",         focus,          {.id = SWM_ARG_ID_FOCUSNEXT} },
5385         { "focus_prev",         focus,          {.id = SWM_ARG_ID_FOCUSPREV} },
5386         { "height_grow",        resize_step,    {.id = SWM_ARG_ID_HEIGHTGROW} },
5387         { "height_shrink",      resize_step,    {.id = SWM_ARG_ID_HEIGHTSHRINK} },
5388         { "iconify",            iconify,        {0} },
5389         { "master_shrink",      stack_config,   {.id = SWM_ARG_ID_MASTERSHRINK} },
5390         { "master_grow",        stack_config,   {.id = SWM_ARG_ID_MASTERGROW} },
5391         { "master_add",         stack_config,   {.id = SWM_ARG_ID_MASTERADD} },
5392         { "master_del",         stack_config,   {.id = SWM_ARG_ID_MASTERDEL} },
5393         { "move_down",          move_step,      {.id = SWM_ARG_ID_MOVEDOWN} },
5394         { "move_left",          move_step,      {.id = SWM_ARG_ID_MOVELEFT} },
5395         { "move_right",         move_step,      {.id = SWM_ARG_ID_MOVERIGHT} },
5396         { "move_up",            move_step,      {.id = SWM_ARG_ID_MOVEUP} },
5397         { "mvws_1",             send_to_ws,     {.id = 0} },
5398         { "mvws_2",             send_to_ws,     {.id = 1} },
5399         { "mvws_3",             send_to_ws,     {.id = 2} },
5400         { "mvws_4",             send_to_ws,     {.id = 3} },
5401         { "mvws_5",             send_to_ws,     {.id = 4} },
5402         { "mvws_6",             send_to_ws,     {.id = 5} },
5403         { "mvws_7",             send_to_ws,     {.id = 6} },
5404         { "mvws_8",             send_to_ws,     {.id = 7} },
5405         { "mvws_9",             send_to_ws,     {.id = 8} },
5406         { "mvws_10",            send_to_ws,     {.id = 9} },
5407         { "mvws_11",            send_to_ws,     {.id = 10} },
5408         { "mvws_12",            send_to_ws,     {.id = 11} },
5409         { "mvws_13",            send_to_ws,     {.id = 12} },
5410         { "mvws_14",            send_to_ws,     {.id = 13} },
5411         { "mvws_15",            send_to_ws,     {.id = 14} },
5412         { "mvws_16",            send_to_ws,     {.id = 15} },
5413         { "mvws_17",            send_to_ws,     {.id = 16} },
5414         { "mvws_18",            send_to_ws,     {.id = 17} },
5415         { "mvws_19",            send_to_ws,     {.id = 18} },
5416         { "mvws_20",            send_to_ws,     {.id = 19} },
5417         { "mvws_21",            send_to_ws,     {.id = 20} },
5418         { "mvws_22",            send_to_ws,     {.id = 21} },
5419         { "name_workspace",     name_workspace, {0} },
5420         { "quit",               quit,           {0} },
5421         { "raise_toggle",       raise_toggle,   {0} },
5422         { "restart",            restart,        {0} },
5423         { "screen_next",        cyclescr,       {.id = SWM_ARG_ID_CYCLESC_UP} },
5424         { "screen_prev",        cyclescr,       {.id = SWM_ARG_ID_CYCLESC_DOWN} },
5425         { "search_win",         search_win,     {0} },
5426         { "search_workspace",   search_workspace,       {0} },
5427         { "spawn_custom",       NULL,           {0} },
5428         { "stack_inc",          stack_config,   {.id = SWM_ARG_ID_STACKINC} },
5429         { "stack_dec",          stack_config,   {.id = SWM_ARG_ID_STACKDEC} },
5430         { "stack_reset",        stack_config,   {.id = SWM_ARG_ID_STACKRESET} },
5431         { "swap_main",          swapwin,        {.id = SWM_ARG_ID_SWAPMAIN} },
5432         { "swap_next",          swapwin,        {.id = SWM_ARG_ID_SWAPNEXT} },
5433         { "swap_prev",          swapwin,        {.id = SWM_ARG_ID_SWAPPREV} },
5434         { "uniconify",          uniconify,      {0} },
5435         { "version",            version,        {0} },
5436         { "width_grow",         resize_step,    {.id = SWM_ARG_ID_WIDTHGROW} },
5437         { "width_shrink",       resize_step,    {.id = SWM_ARG_ID_WIDTHSHRINK} },
5438         { "wind_del",           wkill,          {.id = SWM_ARG_ID_DELETEWINDOW} },
5439         { "wind_kill",          wkill,          {.id = SWM_ARG_ID_KILLWINDOW} },
5440         { "ws_1",               switchws,       {.id = 0} },
5441         { "ws_2",               switchws,       {.id = 1} },
5442         { "ws_3",               switchws,       {.id = 2} },
5443         { "ws_4",               switchws,       {.id = 3} },
5444         { "ws_5",               switchws,       {.id = 4} },
5445         { "ws_6",               switchws,       {.id = 5} },
5446         { "ws_7",               switchws,       {.id = 6} },
5447         { "ws_8",               switchws,       {.id = 7} },
5448         { "ws_9",               switchws,       {.id = 8} },
5449         { "ws_10",              switchws,       {.id = 9} },
5450         { "ws_11",              switchws,       {.id = 10} },
5451         { "ws_12",              switchws,       {.id = 11} },
5452         { "ws_13",              switchws,       {.id = 12} },
5453         { "ws_14",              switchws,       {.id = 13} },
5454         { "ws_15",              switchws,       {.id = 14} },
5455         { "ws_16",              switchws,       {.id = 15} },
5456         { "ws_17",              switchws,       {.id = 16} },
5457         { "ws_18",              switchws,       {.id = 17} },
5458         { "ws_19",              switchws,       {.id = 18} },
5459         { "ws_20",              switchws,       {.id = 19} },
5460         { "ws_21",              switchws,       {.id = 20} },
5461         { "ws_22",              switchws,       {.id = 21} },
5462         { "ws_next",            cyclews,        {.id = SWM_ARG_ID_CYCLEWS_UP} },
5463         { "ws_next_all",        cyclews,        {.id = SWM_ARG_ID_CYCLEWS_UP_ALL} },
5464         { "ws_prev",            cyclews,        {.id = SWM_ARG_ID_CYCLEWS_DOWN} },
5465         { "ws_prev_all",        cyclews,        {.id = SWM_ARG_ID_CYCLEWS_DOWN_ALL} },
5466         { "ws_prior",           priorws,        {0} },
5467         { "dumpwins",           dumpwins,       {0} }, /* MUST BE LAST */
5468         { "invalid key func",   NULL,           {0} },
5469 };
5470
5471 int
5472 key_cmp(struct key *kp1, struct key *kp2)
5473 {
5474         if (kp1->keysym < kp2->keysym)
5475                 return (-1);
5476         if (kp1->keysym > kp2->keysym)
5477                 return (1);
5478
5479         if (kp1->mod < kp2->mod)
5480                 return (-1);
5481         if (kp1->mod > kp2->mod)
5482                 return (1);
5483
5484         return (0);
5485 }
5486
5487 /* mouse */
5488 enum { client_click, root_click };
5489 struct button {
5490         unsigned int            action;
5491         unsigned int            mask;
5492         unsigned int            button;
5493         void                    (*func)(struct ws_win *, union arg *);
5494         union arg               args;
5495 } buttons[] = {
5496 #define MODKEY_SHIFT    MODKEY | XCB_MOD_MASK_SHIFT
5497           /* action     key             mouse button    func    args */
5498         { client_click, MODKEY,         XCB_BUTTON_INDEX_3,     resize, {.id = SWM_ARG_ID_DONTCENTER} },
5499         { client_click, MODKEY_SHIFT,   XCB_BUTTON_INDEX_3,     resize, {.id = SWM_ARG_ID_CENTER} },
5500         { client_click, MODKEY,         XCB_BUTTON_INDEX_1,     move,   {0} },
5501 #undef MODKEY_SHIFT
5502 };
5503
5504 void
5505 update_modkey(unsigned int mod)
5506 {
5507         int                     i;
5508         struct key              *kp;
5509
5510         mod_key = mod;
5511         RB_FOREACH(kp, key_tree, &keys)
5512                 if (kp->mod & XCB_MOD_MASK_SHIFT)
5513                         kp->mod = mod | XCB_MOD_MASK_SHIFT;
5514                 else
5515                         kp->mod = mod;
5516
5517         for (i = 0; i < LENGTH(buttons); i++)
5518                 if (buttons[i].mask & XCB_MOD_MASK_SHIFT)
5519                         buttons[i].mask = mod | XCB_MOD_MASK_SHIFT;
5520                 else
5521                         buttons[i].mask = mod;
5522 }
5523
5524 int
5525 spawn_expand(struct swm_region *r, union arg *args, const char *spawn_name,
5526     char ***ret_args)
5527 {
5528         struct spawn_prog       *prog = NULL;
5529         int                     i;
5530         char                    *ap, **real_args;
5531
5532         /* suppress unused warning since var is needed */
5533         (void)args;
5534
5535         DNPRINTF(SWM_D_SPAWN, "spawn_expand: %s\n", spawn_name);
5536
5537         /* find program */
5538         TAILQ_FOREACH(prog, &spawns, entry) {
5539                 if (!strcasecmp(spawn_name, prog->name))
5540                         break;
5541         }
5542         if (prog == NULL) {
5543                 warnx("spawn_custom: program %s not found", spawn_name);
5544                 return (-1);
5545         }
5546
5547         /* make room for expanded args */
5548         if ((real_args = calloc(prog->argc + 1, sizeof(char *))) == NULL)
5549                 err(1, "spawn_custom: calloc real_args");
5550
5551         /* expand spawn_args into real_args */
5552         for (i = 0; i < prog->argc; i++) {
5553                 ap = prog->argv[i];
5554                 DNPRINTF(SWM_D_SPAWN, "spawn_custom: raw arg: %s\n", ap);
5555                 if (!strcasecmp(ap, "$bar_border")) {
5556                         if ((real_args[i] =
5557                             strdup(r->s->c[SWM_S_COLOR_BAR_BORDER].name))
5558                             == NULL)
5559                                 err(1,  "spawn_custom border color");
5560                 } else if (!strcasecmp(ap, "$bar_color")) {
5561                         if ((real_args[i] =
5562                             strdup(r->s->c[SWM_S_COLOR_BAR].name))
5563                             == NULL)
5564                                 err(1, "spawn_custom bar color");
5565                 } else if (!strcasecmp(ap, "$bar_font")) {
5566                         if ((real_args[i] = strdup(bar_fonts))
5567                             == NULL)
5568                                 err(1, "spawn_custom bar fonts");
5569                 } else if (!strcasecmp(ap, "$bar_font_color")) {
5570                         if ((real_args[i] =
5571                             strdup(r->s->c[SWM_S_COLOR_BAR_FONT].name))
5572                             == NULL)
5573                                 err(1, "spawn_custom color font");
5574                 } else if (!strcasecmp(ap, "$color_focus")) {
5575                         if ((real_args[i] =
5576                             strdup(r->s->c[SWM_S_COLOR_FOCUS].name))
5577                             == NULL)
5578                                 err(1, "spawn_custom color focus");
5579                 } else if (!strcasecmp(ap, "$color_unfocus")) {
5580                         if ((real_args[i] =
5581                             strdup(r->s->c[SWM_S_COLOR_UNFOCUS].name))
5582                             == NULL)
5583                                 err(1, "spawn_custom color unfocus");
5584                 } else {
5585                         /* no match --> copy as is */
5586                         if ((real_args[i] = strdup(ap)) == NULL)
5587                                 err(1, "spawn_custom strdup(ap)");
5588                 }
5589                 DNPRINTF(SWM_D_SPAWN, "spawn_custom: cooked arg: %s\n",
5590                     real_args[i]);
5591         }
5592
5593 #ifdef SWM_DEBUG
5594         DNPRINTF(SWM_D_SPAWN, "spawn_custom: result: ");
5595         for (i = 0; i < prog->argc; i++)
5596                 DNPRINTF(SWM_D_SPAWN, "\"%s\" ", real_args[i]);
5597         DNPRINTF(SWM_D_SPAWN, "\n");
5598 #endif
5599         *ret_args = real_args;
5600         return (prog->argc);
5601 }
5602
5603 void
5604 spawn_custom(struct swm_region *r, union arg *args, const char *spawn_name)
5605 {
5606         union arg               a;
5607         char                    **real_args;
5608         int                     spawn_argc, i;
5609
5610         if ((spawn_argc = spawn_expand(r, args, spawn_name, &real_args)) < 0)
5611                 return;
5612         a.argv = real_args;
5613         if (fork() == 0)
5614                 spawn(r->ws->idx, &a, 1);
5615
5616         for (i = 0; i < spawn_argc; i++)
5617                 free(real_args[i]);
5618         free(real_args);
5619 }
5620
5621 void
5622 spawn_select(struct swm_region *r, union arg *args, const char *spawn_name,
5623     int *pid)
5624 {
5625         union arg               a;
5626         char                    **real_args;
5627         int                     i, spawn_argc;
5628
5629         if ((spawn_argc = spawn_expand(r, args, spawn_name, &real_args)) < 0)
5630                 return;
5631         a.argv = real_args;
5632
5633         if (pipe(select_list_pipe) == -1)
5634                 err(1, "pipe error");
5635         if (pipe(select_resp_pipe) == -1)
5636                 err(1, "pipe error");
5637
5638         if (signal(SIGPIPE, SIG_IGN) == SIG_ERR)
5639                 err(1, "could not disable SIGPIPE");
5640         switch (*pid = fork()) {
5641         case -1:
5642                 err(1, "cannot fork");
5643                 break;
5644         case 0: /* child */
5645                 if (dup2(select_list_pipe[0], 0) == -1)
5646                         err(1, "dup2");
5647                 if (dup2(select_resp_pipe[1], 1) == -1)
5648                         err(1, "dup2");
5649                 close(select_list_pipe[1]);
5650                 close(select_resp_pipe[0]);
5651                 spawn(r->ws->idx, &a, 0);
5652                 break;
5653         default: /* parent */
5654                 close(select_list_pipe[0]);
5655                 close(select_resp_pipe[1]);
5656                 break;
5657         }
5658
5659         for (i = 0; i < spawn_argc; i++)
5660                 free(real_args[i]);
5661         free(real_args);
5662 }
5663
5664 void
5665 spawn_insert(const char *name, const char *args)
5666 {
5667         char                    *arg, *cp, *ptr;
5668         struct spawn_prog       *sp;
5669
5670         DNPRINTF(SWM_D_SPAWN, "spawn_insert: %s\n", name);
5671
5672         if ((sp = calloc(1, sizeof *sp)) == NULL)
5673                 err(1, "spawn_insert: calloc");
5674         if ((sp->name = strdup(name)) == NULL)
5675                 err(1, "spawn_insert: strdup");
5676
5677         /* convert the arguments to an argument list */
5678         if ((ptr = cp = strdup(args)) == NULL)
5679                 err(1, "spawn_insert: strdup");
5680         while ((arg = strsep(&ptr, " \t")) != NULL) {
5681                 /* empty field; skip it */
5682                 if (*arg == '\0')
5683                         continue;
5684
5685                 sp->argc++;
5686                 if ((sp->argv = realloc(sp->argv, sp->argc *
5687                     sizeof *sp->argv)) == NULL)
5688                         err(1, "spawn_insert: realloc");
5689                 if ((sp->argv[sp->argc - 1] = strdup(arg)) == NULL)
5690                         err(1, "spawn_insert: strdup");
5691         }
5692         free(cp);
5693
5694         TAILQ_INSERT_TAIL(&spawns, sp, entry);
5695         DNPRINTF(SWM_D_SPAWN, "spawn_insert: leave\n");
5696 }
5697
5698 void
5699 spawn_remove(struct spawn_prog *sp)
5700 {
5701         int                     i;
5702
5703         DNPRINTF(SWM_D_SPAWN, "spawn_remove: %s\n", sp->name);
5704
5705         TAILQ_REMOVE(&spawns, sp, entry);
5706         for (i = 0; i < sp->argc; i++)
5707                 free(sp->argv[i]);
5708         free(sp->argv);
5709         free(sp->name);
5710         free(sp);
5711
5712         DNPRINTF(SWM_D_SPAWN, "spawn_remove: leave\n");
5713 }
5714
5715 void
5716 spawn_replace(struct spawn_prog *sp, const char *name, const char *args)
5717 {
5718         DNPRINTF(SWM_D_SPAWN, "spawn_replace: %s [%s]\n", sp->name, name);
5719
5720         spawn_remove(sp);
5721         spawn_insert(name, args);
5722
5723         DNPRINTF(SWM_D_SPAWN, "spawn_replace: leave\n");
5724 }
5725
5726 void
5727 setspawn(const char *name, const char *args)
5728 {
5729         struct spawn_prog       *sp;
5730
5731         DNPRINTF(SWM_D_SPAWN, "setspawn: %s\n", name);
5732
5733         if (name == NULL)
5734                 return;
5735
5736         TAILQ_FOREACH(sp, &spawns, entry) {
5737                 if (!strcmp(sp->name, name)) {
5738                         if (*args == '\0')
5739                                 spawn_remove(sp);
5740                         else
5741                                 spawn_replace(sp, name, args);
5742                         DNPRINTF(SWM_D_SPAWN, "setspawn: leave\n");
5743                         return;
5744                 }
5745         }
5746         if (*args == '\0') {
5747                 warnx("error: setspawn: cannot find program: %s", name);
5748                 return;
5749         }
5750
5751         spawn_insert(name, args);
5752         DNPRINTF(SWM_D_SPAWN, "setspawn: leave\n");
5753 }
5754
5755 int
5756 setconfspawn(char *selector, char *value, int flags)
5757 {
5758         char *args;
5759
5760         /* suppress unused warning since var is needed */
5761         (void)flags;
5762
5763         args = expand_tilde(value);
5764
5765         DNPRINTF(SWM_D_SPAWN, "setconfspawn: [%s] [%s]\n", selector, args);
5766
5767         setspawn(selector, args);
5768         free(args);
5769
5770         DNPRINTF(SWM_D_SPAWN, "setconfspawn: done.\n");
5771         return (0);
5772 }
5773
5774 void
5775 setup_spawn(void)
5776 {
5777         setconfspawn("term",            "xterm",                0);
5778         setconfspawn("spawn_term",      "xterm",                0);
5779         setconfspawn("screenshot_all",  "screenshot.sh full",   0);
5780         setconfspawn("screenshot_wind", "screenshot.sh window", 0);
5781         setconfspawn("lock",            "xlock",                0);
5782         setconfspawn("initscr",         "initscreen.sh",        0);
5783         setconfspawn("menu",            "dmenu_run"
5784                                         " -fn $bar_font"
5785                                         " -nb $bar_color"
5786                                         " -nf $bar_font_color"
5787                                         " -sb $bar_border"
5788                                         " -sf $bar_color",      0);
5789         setconfspawn("search",          "dmenu"
5790                                         " -i"
5791                                         " -fn $bar_font"
5792                                         " -nb $bar_color"
5793                                         " -nf $bar_font_color"
5794                                         " -sb $bar_border"
5795                                         " -sf $bar_color",      0);
5796         setconfspawn("name_workspace",  "dmenu"
5797                                         " -p Workspace"
5798                                         " -fn $bar_font"
5799                                         " -nb $bar_color"
5800                                         " -nf $bar_font_color"
5801                                         " -sb $bar_border"
5802                                         " -sf $bar_color",      0);
5803 }
5804
5805 /* key bindings */
5806 #define SWM_MODNAME_SIZE        32
5807 #define SWM_KEY_WS              "\n+ \t"
5808 int
5809 parsekeys(char *keystr, unsigned int currmod, unsigned int *mod, KeySym *ks)
5810 {
5811         char                    *cp, *name;
5812         KeySym                  uks;
5813         DNPRINTF(SWM_D_KEY, "parsekeys: enter [%s]\n", keystr);
5814         if (mod == NULL || ks == NULL) {
5815                 DNPRINTF(SWM_D_KEY, "parsekeys: no mod or key vars\n");
5816                 return (1);
5817         }
5818         if (keystr == NULL || strlen(keystr) == 0) {
5819                 DNPRINTF(SWM_D_KEY, "parsekeys: no keystr\n");
5820                 return (1);
5821         }
5822         cp = keystr;
5823         *ks = XCB_NO_SYMBOL;
5824         *mod = 0;
5825         while ((name = strsep(&cp, SWM_KEY_WS)) != NULL) {
5826                 DNPRINTF(SWM_D_KEY, "parsekeys: key [%s]\n", name);
5827                 if (cp)
5828                         cp += (long)strspn(cp, SWM_KEY_WS);
5829                 if (strncasecmp(name, "MOD", SWM_MODNAME_SIZE) == 0)
5830                         *mod |= currmod;
5831                 else if (!strncasecmp(name, "Mod1", SWM_MODNAME_SIZE))
5832                         *mod |= XCB_MOD_MASK_1;
5833                 else if (!strncasecmp(name, "Mod2", SWM_MODNAME_SIZE))
5834                         *mod += XCB_MOD_MASK_2;
5835                 else if (!strncmp(name, "Mod3", SWM_MODNAME_SIZE))
5836                         *mod |= XCB_MOD_MASK_3;
5837                 else if (!strncmp(name, "Mod4", SWM_MODNAME_SIZE))
5838                         *mod |= XCB_MOD_MASK_4;
5839                 else if (strncasecmp(name, "SHIFT", SWM_MODNAME_SIZE) == 0)
5840                         *mod |= XCB_MOD_MASK_SHIFT;
5841                 else if (strncasecmp(name, "CONTROL", SWM_MODNAME_SIZE) == 0)
5842                         *mod |= XCB_MOD_MASK_CONTROL;
5843                 else {
5844                         *ks = XStringToKeysym(name);
5845                         XConvertCase(*ks, ks, &uks);
5846                         if (ks == XCB_NO_SYMBOL) {
5847                                 DNPRINTF(SWM_D_KEY,
5848                                     "parsekeys: invalid key %s\n",
5849                                     name);
5850                                 return (1);
5851                         }
5852                 }
5853         }
5854         DNPRINTF(SWM_D_KEY, "parsekeys: leave ok\n");
5855         return (0);
5856 }
5857
5858 char *
5859 strdupsafe(const char *str)
5860 {
5861         if (str == NULL)
5862                 return (NULL);
5863         else
5864                 return (strdup(str));
5865 }
5866
5867 void
5868 key_insert(unsigned int mod, KeySym ks, enum keyfuncid kfid,
5869     const char *spawn_name)
5870 {
5871         struct key              *kp;
5872
5873         DNPRINTF(SWM_D_KEY, "key_insert: enter %s [%s]\n",
5874             keyfuncs[kfid].name, spawn_name);
5875
5876         if ((kp = malloc(sizeof *kp)) == NULL)
5877                 err(1, "key_insert: malloc");
5878
5879         kp->mod = mod;
5880         kp->keysym = ks;
5881         kp->funcid = kfid;
5882         kp->spawn_name = strdupsafe(spawn_name);
5883         RB_INSERT(key_tree, &keys, kp);
5884
5885         DNPRINTF(SWM_D_KEY, "key_insert: leave\n");
5886 }
5887
5888 struct key *
5889 key_lookup(unsigned int mod, KeySym ks)
5890 {
5891         struct key              kp;
5892
5893         kp.keysym = ks;
5894         kp.mod = mod;
5895
5896         return (RB_FIND(key_tree, &keys, &kp));
5897 }
5898
5899 void
5900 key_remove(struct key *kp)
5901 {
5902         DNPRINTF(SWM_D_KEY, "key_remove: %s\n", keyfuncs[kp->funcid].name);
5903
5904         RB_REMOVE(key_tree, &keys, kp);
5905         free(kp->spawn_name);
5906         free(kp);
5907
5908         DNPRINTF(SWM_D_KEY, "key_remove: leave\n");
5909 }
5910
5911 void
5912 key_replace(struct key *kp, unsigned int mod, KeySym ks, enum keyfuncid kfid,
5913     const char *spawn_name)
5914 {
5915         DNPRINTF(SWM_D_KEY, "key_replace: %s [%s]\n", keyfuncs[kp->funcid].name,
5916             spawn_name);
5917
5918         key_remove(kp);
5919         key_insert(mod, ks, kfid, spawn_name);
5920
5921         DNPRINTF(SWM_D_KEY, "key_replace: leave\n");
5922 }
5923
5924 void
5925 setkeybinding(unsigned int mod, KeySym ks, enum keyfuncid kfid,
5926     const char *spawn_name)
5927 {
5928         struct key              *kp;
5929
5930         DNPRINTF(SWM_D_KEY, "setkeybinding: enter %s [%s]\n",
5931             keyfuncs[kfid].name, spawn_name);
5932
5933         if ((kp = key_lookup(mod, ks)) != NULL) {
5934                 if (kfid == KF_INVALID)
5935                         key_remove(kp);
5936                 else
5937                         key_replace(kp, mod, ks, kfid, spawn_name);
5938                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
5939                 return;
5940         }
5941         if (kfid == KF_INVALID) {
5942                 warnx("error: setkeybinding: cannot find mod/key combination");
5943                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
5944                 return;
5945         }
5946
5947         key_insert(mod, ks, kfid, spawn_name);
5948         DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
5949 }
5950
5951 int
5952 setconfbinding(char *selector, char *value, int flags)
5953 {
5954         enum keyfuncid          kfid;
5955         unsigned int            mod;
5956         KeySym                  ks;
5957         struct spawn_prog       *sp;
5958
5959         /* suppress unused warning since var is needed */
5960         (void)flags;
5961
5962         DNPRINTF(SWM_D_KEY, "setconfbinding: enter\n");
5963         if (selector == NULL) {
5964                 DNPRINTF(SWM_D_KEY, "setconfbinding: unbind %s\n", value);
5965                 if (parsekeys(value, mod_key, &mod, &ks) == 0) {
5966                         kfid = KF_INVALID;
5967                         setkeybinding(mod, ks, kfid, NULL);
5968                         return (0);
5969                 } else
5970                         return (1);
5971         }
5972         /* search by key function name */
5973         for (kfid = 0; kfid < KF_INVALID; (kfid)++) {
5974                 if (strncasecmp(selector, keyfuncs[kfid].name,
5975                     SWM_FUNCNAME_LEN) == 0) {
5976                         DNPRINTF(SWM_D_KEY, "setconfbinding: %s: match\n",
5977                             selector);
5978                         if (parsekeys(value, mod_key, &mod, &ks) == 0) {
5979                                 setkeybinding(mod, ks, kfid, NULL);
5980                                 return (0);
5981                         } else
5982                                 return (1);
5983                 }
5984         }
5985         /* search by custom spawn name */
5986         TAILQ_FOREACH(sp, &spawns, entry) {
5987                 if (strcasecmp(selector, sp->name) == 0) {
5988                         DNPRINTF(SWM_D_KEY, "setconfbinding: %s: match\n",
5989                             selector);
5990                         if (parsekeys(value, mod_key, &mod, &ks) == 0) {
5991                                 setkeybinding(mod, ks, KF_SPAWN_CUSTOM,
5992                                     sp->name);
5993                                 return (0);
5994                         } else
5995                                 return (1);
5996                 }
5997         }
5998         DNPRINTF(SWM_D_KEY, "setconfbinding: no match\n");
5999         return (1);
6000 }
6001
6002 void
6003 setup_keys(void)
6004 {
6005 #define MODKEY_SHIFT    MODKEY | XCB_MOD_MASK_SHIFT
6006         setkeybinding(MODKEY,           XK_space,       KF_CYCLE_LAYOUT,NULL);
6007         setkeybinding(MODKEY_SHIFT,     XK_backslash,   KF_FLIP_LAYOUT, NULL);
6008         setkeybinding(MODKEY_SHIFT,     XK_space,       KF_STACK_RESET, NULL);
6009         setkeybinding(MODKEY,           XK_h,           KF_MASTER_SHRINK, NULL);
6010         setkeybinding(MODKEY,           XK_l,           KF_MASTER_GROW, NULL);
6011         setkeybinding(MODKEY,           XK_comma,       KF_MASTER_ADD,  NULL);
6012         setkeybinding(MODKEY,           XK_period,      KF_MASTER_DEL,  NULL);
6013         setkeybinding(MODKEY_SHIFT,     XK_comma,       KF_STACK_INC,   NULL);
6014         setkeybinding(MODKEY_SHIFT,     XK_period,      KF_STACK_DEC,   NULL);
6015         setkeybinding(MODKEY,           XK_Return,      KF_SWAP_MAIN,   NULL);
6016         setkeybinding(MODKEY,           XK_j,           KF_FOCUS_NEXT,  NULL);
6017         setkeybinding(MODKEY,           XK_k,           KF_FOCUS_PREV,  NULL);
6018         setkeybinding(MODKEY_SHIFT,     XK_j,           KF_SWAP_NEXT,   NULL);
6019         setkeybinding(MODKEY_SHIFT,     XK_k,           KF_SWAP_PREV,   NULL);
6020         setkeybinding(MODKEY_SHIFT,     XK_Return,      KF_SPAWN_CUSTOM,"term");
6021         setkeybinding(MODKEY,           XK_p,           KF_SPAWN_CUSTOM,"menu");
6022         setkeybinding(MODKEY_SHIFT,     XK_q,           KF_QUIT,        NULL);
6023         setkeybinding(MODKEY,           XK_q,           KF_RESTART,     NULL);
6024         setkeybinding(MODKEY,           XK_m,           KF_FOCUS_MAIN,  NULL);
6025         setkeybinding(MODKEY,           XK_1,           KF_WS_1,        NULL);
6026         setkeybinding(MODKEY,           XK_2,           KF_WS_2,        NULL);
6027         setkeybinding(MODKEY,           XK_3,           KF_WS_3,        NULL);
6028         setkeybinding(MODKEY,           XK_4,           KF_WS_4,        NULL);
6029         setkeybinding(MODKEY,           XK_5,           KF_WS_5,        NULL);
6030         setkeybinding(MODKEY,           XK_6,           KF_WS_6,        NULL);
6031         setkeybinding(MODKEY,           XK_7,           KF_WS_7,        NULL);
6032         setkeybinding(MODKEY,           XK_8,           KF_WS_8,        NULL);
6033         setkeybinding(MODKEY,           XK_9,           KF_WS_9,        NULL);
6034         setkeybinding(MODKEY,           XK_0,           KF_WS_10,       NULL);
6035         setkeybinding(MODKEY,           XK_F1,          KF_WS_11,       NULL);
6036         setkeybinding(MODKEY,           XK_F2,          KF_WS_12,       NULL);
6037         setkeybinding(MODKEY,           XK_F3,          KF_WS_13,       NULL);
6038         setkeybinding(MODKEY,           XK_F4,          KF_WS_14,       NULL);
6039         setkeybinding(MODKEY,           XK_F5,          KF_WS_15,       NULL);
6040         setkeybinding(MODKEY,           XK_F6,          KF_WS_16,       NULL);
6041         setkeybinding(MODKEY,           XK_F7,          KF_WS_17,       NULL);
6042         setkeybinding(MODKEY,           XK_F8,          KF_WS_18,       NULL);
6043         setkeybinding(MODKEY,           XK_F9,          KF_WS_19,       NULL);
6044         setkeybinding(MODKEY,           XK_F10,         KF_WS_20,       NULL);
6045         setkeybinding(MODKEY,           XK_F11,         KF_WS_21,       NULL);
6046         setkeybinding(MODKEY,           XK_F12,         KF_WS_22,       NULL);
6047         setkeybinding(MODKEY,           XK_Right,       KF_WS_NEXT,     NULL);
6048         setkeybinding(MODKEY,           XK_Left,        KF_WS_PREV,     NULL);
6049         setkeybinding(MODKEY,           XK_Up,          KF_WS_NEXT_ALL, NULL);
6050         setkeybinding(MODKEY,           XK_Down,        KF_WS_PREV_ALL, NULL);
6051         setkeybinding(MODKEY,           XK_a,           KF_WS_PRIOR,    NULL);
6052         setkeybinding(MODKEY_SHIFT,     XK_Right,       KF_SCREEN_NEXT, NULL);
6053         setkeybinding(MODKEY_SHIFT,     XK_Left,        KF_SCREEN_PREV, NULL);
6054         setkeybinding(MODKEY_SHIFT,     XK_1,           KF_MVWS_1,      NULL);
6055         setkeybinding(MODKEY_SHIFT,     XK_2,           KF_MVWS_2,      NULL);
6056         setkeybinding(MODKEY_SHIFT,     XK_3,           KF_MVWS_3,      NULL);
6057         setkeybinding(MODKEY_SHIFT,     XK_4,           KF_MVWS_4,      NULL);
6058         setkeybinding(MODKEY_SHIFT,     XK_5,           KF_MVWS_5,      NULL);
6059         setkeybinding(MODKEY_SHIFT,     XK_6,           KF_MVWS_6,      NULL);
6060         setkeybinding(MODKEY_SHIFT,     XK_7,           KF_MVWS_7,      NULL);
6061         setkeybinding(MODKEY_SHIFT,     XK_8,           KF_MVWS_8,      NULL);
6062         setkeybinding(MODKEY_SHIFT,     XK_9,           KF_MVWS_9,      NULL);
6063         setkeybinding(MODKEY_SHIFT,     XK_0,           KF_MVWS_10,     NULL);
6064         setkeybinding(MODKEY_SHIFT,     XK_F1,          KF_MVWS_11,     NULL);
6065         setkeybinding(MODKEY_SHIFT,     XK_F2,          KF_MVWS_12,     NULL);
6066         setkeybinding(MODKEY_SHIFT,     XK_F3,          KF_MVWS_13,     NULL);
6067         setkeybinding(MODKEY_SHIFT,     XK_F4,          KF_MVWS_14,     NULL);
6068         setkeybinding(MODKEY_SHIFT,     XK_F5,          KF_MVWS_15,     NULL);
6069         setkeybinding(MODKEY_SHIFT,     XK_F6,          KF_MVWS_16,     NULL);
6070         setkeybinding(MODKEY_SHIFT,     XK_F7,          KF_MVWS_17,     NULL);
6071         setkeybinding(MODKEY_SHIFT,     XK_F8,          KF_MVWS_18,     NULL);
6072         setkeybinding(MODKEY_SHIFT,     XK_F9,          KF_MVWS_19,     NULL);
6073         setkeybinding(MODKEY_SHIFT,     XK_F10,         KF_MVWS_20,     NULL);
6074         setkeybinding(MODKEY_SHIFT,     XK_F11,         KF_MVWS_21,     NULL);
6075         setkeybinding(MODKEY_SHIFT,     XK_F12,         KF_MVWS_22,     NULL);
6076         setkeybinding(MODKEY,           XK_b,           KF_BAR_TOGGLE,  NULL);
6077         setkeybinding(MODKEY,           XK_Tab,         KF_FOCUS_NEXT,  NULL);
6078         setkeybinding(MODKEY_SHIFT,     XK_Tab,         KF_FOCUS_PREV,  NULL);
6079         setkeybinding(MODKEY_SHIFT,     XK_x,           KF_WIND_KILL,   NULL);
6080         setkeybinding(MODKEY,           XK_x,           KF_WIND_DEL,    NULL);
6081         setkeybinding(MODKEY,           XK_s,           KF_SPAWN_CUSTOM,"screenshot_all");
6082         setkeybinding(MODKEY_SHIFT,     XK_s,           KF_SPAWN_CUSTOM,"screenshot_wind");
6083         setkeybinding(MODKEY,           XK_t,           KF_FLOAT_TOGGLE,NULL);
6084         setkeybinding(MODKEY_SHIFT,     XK_v,           KF_VERSION,     NULL);
6085         setkeybinding(MODKEY_SHIFT,     XK_Delete,      KF_SPAWN_CUSTOM,"lock");
6086         setkeybinding(MODKEY_SHIFT,     XK_i,           KF_SPAWN_CUSTOM,"initscr");
6087         setkeybinding(MODKEY,           XK_w,           KF_ICONIFY,     NULL);
6088         setkeybinding(MODKEY_SHIFT,     XK_w,           KF_UNICONIFY,   NULL);
6089         setkeybinding(MODKEY_SHIFT,     XK_r,           KF_RAISE_TOGGLE,NULL);
6090         setkeybinding(MODKEY,           XK_v,           KF_BUTTON2,     NULL);
6091         setkeybinding(MODKEY,           XK_equal,       KF_WIDTH_GROW,  NULL);
6092         setkeybinding(MODKEY,           XK_minus,       KF_WIDTH_SHRINK,NULL);
6093         setkeybinding(MODKEY_SHIFT,     XK_equal,       KF_HEIGHT_GROW,NULL);
6094         setkeybinding(MODKEY_SHIFT,     XK_minus,       KF_HEIGHT_SHRINK,NULL);
6095         setkeybinding(MODKEY,           XK_bracketleft, KF_MOVE_LEFT,NULL);
6096         setkeybinding(MODKEY,           XK_bracketright,KF_MOVE_RIGHT,NULL);
6097         setkeybinding(MODKEY_SHIFT,     XK_bracketleft, KF_MOVE_UP,     NULL);
6098         setkeybinding(MODKEY_SHIFT,     XK_bracketright,KF_MOVE_DOWN,NULL);
6099         setkeybinding(MODKEY_SHIFT,     XK_slash,       KF_NAME_WORKSPACE,NULL);
6100         setkeybinding(MODKEY,           XK_slash,       KF_SEARCH_WORKSPACE,NULL);
6101         setkeybinding(MODKEY,           XK_f,           KF_SEARCH_WIN,  NULL);
6102 #ifdef SWM_DEBUG
6103         setkeybinding(MODKEY_SHIFT,     XK_d,           KF_DUMPWINS,    NULL);
6104 #endif
6105 #undef MODKEY_SHIFT
6106 }
6107
6108 void
6109 clear_keys(void)
6110 {
6111         struct key              *kp;
6112
6113         while (RB_EMPTY(&keys) == 0) {
6114                 kp = RB_ROOT(&keys);
6115                 key_remove(kp);
6116         }
6117 }
6118
6119 int
6120 setkeymapping(char *selector, char *value, int flags)
6121 {
6122         char                    keymapping_file[PATH_MAX];
6123
6124         /* suppress unused warnings since vars are needed */
6125         (void)selector;
6126         (void)flags;
6127
6128         DNPRINTF(SWM_D_KEY, "setkeymapping: enter\n");
6129         if (value[0] == '~')
6130                 snprintf(keymapping_file, sizeof keymapping_file, "%s/%s",
6131                     pwd->pw_dir, &value[1]);
6132         else
6133                 strlcpy(keymapping_file, value, sizeof keymapping_file);
6134         clear_keys();
6135         /* load new key bindings; if it fails, revert to default bindings */
6136         if (conf_load(keymapping_file, SWM_CONF_KEYMAPPING)) {
6137                 clear_keys();
6138                 setup_keys();
6139         }
6140         DNPRINTF(SWM_D_KEY, "setkeymapping: leave\n");
6141         return (0);
6142 }
6143
6144 void
6145 updatenumlockmask(void)
6146 {
6147         unsigned int                            i, j;
6148         xcb_get_modifier_mapping_reply_t        *modmap_r;
6149         xcb_keycode_t                           *modmap, kc, *keycode;
6150
6151         numlockmask = 0;
6152
6153         modmap_r = xcb_get_modifier_mapping_reply(conn,
6154             xcb_get_modifier_mapping(conn),
6155             NULL);
6156         if (modmap_r) {
6157                 modmap = xcb_get_modifier_mapping_keycodes(modmap_r);
6158                 for (i = 0; i < 8; i++) {
6159                         for (j = 0; j < modmap_r->keycodes_per_modifier; j++) {
6160                                 kc = modmap[i * modmap_r->keycodes_per_modifier
6161                                     + j];
6162                                 keycode = xcb_key_symbols_get_keycode(syms,
6163                                                 XK_Num_Lock);
6164                                 if (kc == *keycode)
6165                                         numlockmask = (1 << i);
6166                                 free(keycode);
6167                         }
6168                 }
6169                 free(modmap_r);
6170         }
6171         DNPRINTF(SWM_D_MISC, "updatenumlockmask: %d\n", numlockmask);
6172 }
6173
6174 void
6175 grabkeys(void)
6176 {
6177         struct key              *kp;
6178         int                     num_screens, k, j;
6179         unsigned int            modifiers[3];
6180         xcb_keycode_t           *code;
6181
6182         DNPRINTF(SWM_D_MISC, "grabkeys\n");
6183         updatenumlockmask();
6184
6185         modifiers[0] = 0;
6186         modifiers[1] = numlockmask;
6187         modifiers[2] = numlockmask | XCB_MOD_MASK_LOCK;
6188
6189         num_screens = xcb_setup_roots_length(xcb_get_setup(conn));
6190         for (k = 0; k < num_screens; k++) {
6191                 if (TAILQ_EMPTY(&screens[k].rl))
6192                         continue;
6193                 xcb_ungrab_key(conn, XCB_GRAB_ANY, screens[k].root,
6194                         XCB_MOD_MASK_ANY);
6195                 RB_FOREACH(kp, key_tree, &keys) {
6196                         if ((code = xcb_key_symbols_get_keycode(syms,
6197                                         kp->keysym))) {
6198                                 for (j = 0; j < LENGTH(modifiers); j++)
6199                                         xcb_grab_key(conn, 1,
6200                                             screens[k].root,
6201                                             kp->mod | modifiers[j],
6202                                             *code, XCB_GRAB_MODE_SYNC,
6203                                             XCB_GRAB_MODE_ASYNC);
6204                                 free(code);
6205                         }
6206                 }
6207         }
6208 }
6209
6210 void
6211 grabbuttons(struct ws_win *win)
6212 {
6213         int             i;
6214
6215         DNPRINTF(SWM_D_MOUSE, "grabbuttons: win 0x%x\n", win->id);
6216
6217         for (i = 0; i < LENGTH(buttons); i++)
6218                 if (buttons[i].action == client_click)
6219                         xcb_grab_button(conn, 0, win->id, BUTTONMASK,
6220                             XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC,
6221                             XCB_WINDOW_NONE, XCB_CURSOR_NONE,
6222                             buttons[i].button, buttons[i].mask);
6223 }
6224
6225 const char *quirkname[] = {
6226         "NONE",         /* config string for "no value" */
6227         "FLOAT",
6228         "TRANSSZ",
6229         "ANYWHERE",
6230         "XTERM_FONTADJ",
6231         "FULLSCREEN",
6232         "FOCUSPREV",
6233 };
6234
6235 /* SWM_Q_WS: retain '|' for back compat for now (2009-08-11) */
6236 #define SWM_Q_WS                "\n|+ \t"
6237 int
6238 parsequirks(char *qstr, unsigned long *quirk)
6239 {
6240         char                    *cp, *name;
6241         int                     i;
6242
6243         if (quirk == NULL)
6244                 return (1);
6245
6246         cp = qstr;
6247         *quirk = 0;
6248         while ((name = strsep(&cp, SWM_Q_WS)) != NULL) {
6249                 if (cp)
6250                         cp += (long)strspn(cp, SWM_Q_WS);
6251                 for (i = 0; i < LENGTH(quirkname); i++) {
6252                         if (!strncasecmp(name, quirkname[i], SWM_QUIRK_LEN)) {
6253                                 DNPRINTF(SWM_D_QUIRK,
6254                                     "parsequirks: %s\n", name);
6255                                 if (i == 0) {
6256                                         *quirk = 0;
6257                                         return (0);
6258                                 }
6259                                 *quirk |= 1 << (i-1);
6260                                 break;
6261                         }
6262                 }
6263                 if (i >= LENGTH(quirkname)) {
6264                         DNPRINTF(SWM_D_QUIRK,
6265                             "parsequirks: invalid quirk [%s]\n", name);
6266                         return (1);
6267                 }
6268         }
6269         return (0);
6270 }
6271
6272 void
6273 quirk_insert(const char *class, const char *name, unsigned long quirk)
6274 {
6275         struct quirk            *qp;
6276
6277         DNPRINTF(SWM_D_QUIRK, "quirk_insert: %s:%s [%lu]\n", class, name,
6278             quirk);
6279
6280         if ((qp = malloc(sizeof *qp)) == NULL)
6281                 err(1, "quirk_insert: malloc");
6282         if ((qp->class = strdup(class)) == NULL)
6283                 err(1, "quirk_insert: strdup");
6284         if ((qp->name = strdup(name)) == NULL)
6285                 err(1, "quirk_insert: strdup");
6286
6287         qp->quirk = quirk;
6288         TAILQ_INSERT_TAIL(&quirks, qp, entry);
6289
6290         DNPRINTF(SWM_D_QUIRK, "quirk_insert: leave\n");
6291 }
6292
6293 void
6294 quirk_remove(struct quirk *qp)
6295 {
6296         DNPRINTF(SWM_D_QUIRK, "quirk_remove: %s:%s [%lu]\n", qp->class,
6297             qp->name, qp->quirk);
6298
6299         TAILQ_REMOVE(&quirks, qp, entry);
6300         free(qp->class);
6301         free(qp->name);
6302         free(qp);
6303
6304         DNPRINTF(SWM_D_QUIRK, "quirk_remove: leave\n");
6305 }
6306
6307 void
6308 quirk_replace(struct quirk *qp, const char *class, const char *name,
6309     unsigned long quirk)
6310 {
6311         DNPRINTF(SWM_D_QUIRK, "quirk_replace: %s:%s [%lu]\n", qp->class,
6312             qp->name, qp->quirk);
6313
6314         quirk_remove(qp);
6315         quirk_insert(class, name, quirk);
6316
6317         DNPRINTF(SWM_D_QUIRK, "quirk_replace: leave\n");
6318 }
6319
6320 void
6321 setquirk(const char *class, const char *name, unsigned long quirk)
6322 {
6323         struct quirk            *qp;
6324
6325         DNPRINTF(SWM_D_QUIRK, "setquirk: enter %s:%s [%lu]\n", class, name,
6326            quirk);
6327
6328         /* Remove/replace existing quirk. */
6329         TAILQ_FOREACH(qp, &quirks, entry) {
6330                 if (!strcmp(qp->class, class) && !strcmp(qp->name, name)) {
6331                         if (!quirk)
6332                                 quirk_remove(qp);
6333                         else
6334                                 quirk_replace(qp, class, name, quirk);
6335                         DNPRINTF(SWM_D_QUIRK, "setquirk: leave\n");
6336                         return;
6337                 }
6338         }
6339
6340         /* Only insert if quirk is not NONE. */
6341         if (quirk)
6342                 quirk_insert(class, name, quirk);
6343
6344         DNPRINTF(SWM_D_QUIRK, "setquirk: leave\n");
6345 }
6346
6347 int
6348 setconfquirk(char *selector, char *value, int flags)
6349 {
6350         char                    *cp, *class, *name;
6351         int                     retval;
6352         unsigned long           qrks;
6353
6354         /* suppress unused warning since var is needed */
6355         (void)flags;
6356
6357         if (selector == NULL)
6358                 return (0);
6359         if ((cp = strchr(selector, ':')) == NULL)
6360                 return (0);
6361         *cp = '\0';
6362         class = selector;
6363         name = cp + 1;
6364         if ((retval = parsequirks(value, &qrks)) == 0)
6365                 setquirk(class, name, qrks);
6366         return (retval);
6367 }
6368
6369 void
6370 setup_quirks(void)
6371 {
6372         setquirk("MPlayer",             "xv",           SWM_Q_FLOAT | SWM_Q_FULLSCREEN | SWM_Q_FOCUSPREV);
6373         setquirk("OpenOffice.org 3.2",  "VCLSalFrame",  SWM_Q_FLOAT);
6374         setquirk("Firefox-bin",         "firefox-bin",  SWM_Q_TRANSSZ);
6375         setquirk("Firefox",             "Dialog",       SWM_Q_FLOAT);
6376         setquirk("Gimp",                "gimp",         SWM_Q_FLOAT | SWM_Q_ANYWHERE);
6377         setquirk("XTerm",               "xterm",        SWM_Q_XTERM_FONTADJ);
6378         setquirk("xine",                "Xine Window",  SWM_Q_FLOAT | SWM_Q_ANYWHERE);
6379         setquirk("Xitk",                "Xitk Combo",   SWM_Q_FLOAT | SWM_Q_ANYWHERE);
6380         setquirk("xine",                "xine Panel",   SWM_Q_FLOAT | SWM_Q_ANYWHERE);
6381         setquirk("Xitk",                "Xine Window",  SWM_Q_FLOAT | SWM_Q_ANYWHERE);
6382         setquirk("xine",                "xine Video Fullscreen Window", SWM_Q_FULLSCREEN | SWM_Q_FLOAT);
6383         setquirk("pcb",                 "pcb",          SWM_Q_FLOAT);
6384         setquirk("SDL_App",             "SDL_App",      SWM_Q_FLOAT | SWM_Q_FULLSCREEN);
6385 }
6386
6387 /* conf file stuff */
6388 #define SWM_CONF_FILE           "spectrwm.conf"
6389 #define SWM_CONF_FILE_OLD       "scrotwm.conf"
6390
6391 enum {
6392         SWM_S_BAR_ACTION,
6393         SWM_S_BAR_AT_BOTTOM,
6394         SWM_S_BAR_BORDER_WIDTH,
6395         SWM_S_BAR_DELAY,
6396         SWM_S_BAR_ENABLED,
6397         SWM_S_BAR_FONT,
6398         SWM_S_BAR_FORMAT,
6399         SWM_S_BAR_JUSTIFY,
6400         SWM_S_BORDER_WIDTH,
6401         SWM_S_CLOCK_ENABLED,
6402         SWM_S_CLOCK_FORMAT,
6403         SWM_S_CYCLE_EMPTY,
6404         SWM_S_CYCLE_VISIBLE,
6405         SWM_S_DIALOG_RATIO,
6406         SWM_S_DISABLE_BORDER,
6407         SWM_S_FOCUS_CLOSE,
6408         SWM_S_FOCUS_CLOSE_WRAP,
6409         SWM_S_FOCUS_DEFAULT,
6410         SWM_S_FOCUS_MODE,
6411         SWM_S_SPAWN_ORDER,
6412         SWM_S_SPAWN_TERM,
6413         SWM_S_SS_APP,
6414         SWM_S_SS_ENABLED,
6415         SWM_S_STACK_ENABLED,
6416         SWM_S_TERM_WIDTH,
6417         SWM_S_TITLE_CLASS_ENABLED,
6418         SWM_S_TITLE_NAME_ENABLED,
6419         SWM_S_URGENT_ENABLED,
6420         SWM_S_VERBOSE_LAYOUT,
6421         SWM_S_WINDOW_NAME_ENABLED,
6422         SWM_S_WORKSPACE_LIMIT
6423 };
6424
6425 int
6426 setconfvalue(char *selector, char *value, int flags)
6427 {
6428         int     i;
6429         char    *b;
6430
6431         /* suppress unused warning since var is needed */
6432         (void)selector;
6433
6434         switch (flags) {
6435         case SWM_S_BAR_ACTION:
6436                 free(bar_argv[0]);
6437                 if ((bar_argv[0] = expand_tilde(value)) == NULL)
6438                         err(1, "setconfvalue: bar_action");
6439                 break;
6440         case SWM_S_BAR_AT_BOTTOM:
6441                 bar_at_bottom = atoi(value);
6442                 break;
6443         case SWM_S_BAR_BORDER_WIDTH:
6444                 bar_border_width = atoi(value);
6445                 if (bar_border_width < 0)
6446                         bar_border_width = 0;
6447                 break;
6448         case SWM_S_BAR_DELAY:
6449                 bar_delay = atoi(value);
6450                 break;
6451         case SWM_S_BAR_ENABLED:
6452                 bar_enabled = atoi(value);
6453                 break;
6454         case SWM_S_BAR_FONT:
6455                 b = bar_fonts;
6456                 if (asprintf(&bar_fonts, "%s,%s", value, bar_fonts) == -1)
6457                         err(1, "setconfvalue: asprintf: failed to allocate "
6458                                 "memory for bar_fonts.");
6459                 free(b);
6460
6461                 /* If already in xft mode, then we are done. */
6462                 if (!bar_font_legacy)
6463                         break;
6464
6465                 /* If there are any non-XLFD entries, switch to Xft mode. */
6466                 while ((b = strsep(&value, ",")) != NULL) {
6467                         if (*b == '\0')
6468                                 continue;
6469                         if (!isxlfd(b)) {
6470                                 bar_font_legacy = 0;
6471                                 break;
6472                         }
6473                 }
6474                 break;
6475         case SWM_S_BAR_FORMAT:
6476                 free(bar_format);
6477                 if ((bar_format = strdup(value)) == NULL)
6478                         err(1, "setconfvalue: bar_format");
6479                 break;
6480         case SWM_S_BAR_JUSTIFY:
6481                 if (!strcmp(value, "left"))
6482                         bar_justify = SWM_BAR_JUSTIFY_LEFT;
6483                 else if (!strcmp(value, "center"))
6484                         bar_justify = SWM_BAR_JUSTIFY_CENTER;
6485                 else if (!strcmp(value, "right"))
6486                         bar_justify = SWM_BAR_JUSTIFY_RIGHT;
6487                 else
6488                         errx(1, "invalid bar_justify");
6489                 break;
6490         case SWM_S_BORDER_WIDTH:
6491                 border_width = atoi(value);
6492                 if (border_width < 0)
6493                         border_width = 0;
6494                 break;
6495         case SWM_S_CLOCK_ENABLED:
6496                 clock_enabled = atoi(value);
6497                 break;
6498         case SWM_S_CLOCK_FORMAT:
6499 #ifndef SWM_DENY_CLOCK_FORMAT
6500                 free(clock_format);
6501                 if ((clock_format = strdup(value)) == NULL)
6502                         err(1, "setconfvalue: clock_format");
6503 #endif
6504                 break;
6505         case SWM_S_CYCLE_EMPTY:
6506                 cycle_empty = atoi(value);
6507                 break;
6508         case SWM_S_CYCLE_VISIBLE:
6509                 cycle_visible = atoi(value);
6510                 break;
6511         case SWM_S_DIALOG_RATIO:
6512                 dialog_ratio = atof(value);
6513                 if (dialog_ratio > 1.0 || dialog_ratio <= .3)
6514                         dialog_ratio = .6;
6515                 break;
6516         case SWM_S_DISABLE_BORDER:
6517                 disable_border = atoi(value);
6518                 break;
6519         case SWM_S_FOCUS_CLOSE:
6520                 if (!strcmp(value, "first"))
6521                         focus_close = SWM_STACK_BOTTOM;
6522                 else if (!strcmp(value, "last"))
6523                         focus_close = SWM_STACK_TOP;
6524                 else if (!strcmp(value, "next"))
6525                         focus_close = SWM_STACK_ABOVE;
6526                 else if (!strcmp(value, "previous"))
6527                         focus_close = SWM_STACK_BELOW;
6528                 else
6529                         errx(1, "focus_close");
6530                 break;
6531         case SWM_S_FOCUS_CLOSE_WRAP:
6532                 focus_close_wrap = atoi(value);
6533                 break;
6534         case SWM_S_FOCUS_DEFAULT:
6535                 if (!strcmp(value, "last"))
6536                         focus_default = SWM_STACK_TOP;
6537                 else if (!strcmp(value, "first"))
6538                         focus_default = SWM_STACK_BOTTOM;
6539                 else
6540                         errx(1, "focus_default");
6541                 break;
6542         case SWM_S_FOCUS_MODE:
6543                 if (!strcmp(value, "default"))
6544                         focus_mode = SWM_FOCUS_DEFAULT;
6545                 else if (!strcmp(value, "follow") ||
6546                     !strcmp(value, "follow_cursor"))
6547                         focus_mode = SWM_FOCUS_FOLLOW;
6548                 else if (!strcmp(value, "manual"))
6549                         focus_mode = SWM_FOCUS_MANUAL;
6550                 else
6551                         errx(1, "focus_mode");
6552                 break;
6553         case SWM_S_SPAWN_ORDER:
6554                 if (!strcmp(value, "first"))
6555                         spawn_position = SWM_STACK_BOTTOM;
6556                 else if (!strcmp(value, "last"))
6557                         spawn_position = SWM_STACK_TOP;
6558                 else if (!strcmp(value, "next"))
6559                         spawn_position = SWM_STACK_ABOVE;
6560                 else if (!strcmp(value, "previous"))
6561                         spawn_position = SWM_STACK_BELOW;
6562                 else
6563                         errx(1, "spawn_position");
6564                 break;
6565         case SWM_S_SPAWN_TERM:
6566                 setconfspawn("term", value, 0);
6567                 setconfspawn("spawn_term", value, 0);
6568                 break;
6569         case SWM_S_SS_APP:
6570                 break;
6571         case SWM_S_SS_ENABLED:
6572                 ss_enabled = atoi(value);
6573                 break;
6574         case SWM_S_STACK_ENABLED:
6575                 stack_enabled = atoi(value);
6576                 break;
6577         case SWM_S_TERM_WIDTH:
6578                 term_width = atoi(value);
6579                 if (term_width < 0)
6580                         term_width = 0;
6581                 break;
6582         case SWM_S_TITLE_CLASS_ENABLED:
6583                 title_class_enabled = atoi(value);
6584                 break;
6585         case SWM_S_TITLE_NAME_ENABLED:
6586                 title_name_enabled = atoi(value);
6587                 break;
6588         case SWM_S_URGENT_ENABLED:
6589                 urgent_enabled = atoi(value);
6590                 break;
6591         case SWM_S_VERBOSE_LAYOUT:
6592                 verbose_layout = atoi(value);
6593                 for (i = 0; layouts[i].l_stack != NULL; i++) {
6594                         if (verbose_layout)
6595                                 layouts[i].l_string = fancy_stacker;
6596                         else
6597                                 layouts[i].l_string = plain_stacker;
6598                 }
6599                 break;
6600         case SWM_S_WINDOW_NAME_ENABLED:
6601                 window_name_enabled = atoi(value);
6602                 break;
6603         case SWM_S_WORKSPACE_LIMIT:
6604                 workspace_limit = atoi(value);
6605                 if (workspace_limit > SWM_WS_MAX)
6606                         workspace_limit = SWM_WS_MAX;
6607                 else if (workspace_limit < 1)
6608                         workspace_limit = 1;
6609                 break;
6610         default:
6611                 return (1);
6612         }
6613         return (0);
6614 }
6615
6616 int
6617 setconfmodkey(char *selector, char *value, int flags)
6618 {
6619         /* suppress unused warnings since vars are needed */
6620         (void)selector;
6621         (void)flags;
6622
6623         if (!strncasecmp(value, "Mod1", strlen("Mod1")))
6624                 update_modkey(XCB_MOD_MASK_1);
6625         else if (!strncasecmp(value, "Mod2", strlen("Mod2")))
6626                 update_modkey(XCB_MOD_MASK_2);
6627         else if (!strncasecmp(value, "Mod3", strlen("Mod3")))
6628                 update_modkey(XCB_MOD_MASK_3);
6629         else if (!strncasecmp(value, "Mod4", strlen("Mod4")))
6630                 update_modkey(XCB_MOD_MASK_4);
6631         else
6632                 return (1);
6633         return (0);
6634 }
6635
6636 int
6637 setconfcolor(char *selector, char *value, int flags)
6638 {
6639         setscreencolor(value, ((selector == NULL)?-1:atoi(selector)), flags);
6640         return (0);
6641 }
6642
6643 int
6644 setconfregion(char *selector, char *value, int flags)
6645 {
6646         /* suppress unused warnings since vars are needed */
6647         (void)selector;
6648         (void)flags;
6649
6650         custom_region(value);
6651         return (0);
6652 }
6653
6654 int
6655 setautorun(char *selector, char *value, int flags)
6656 {
6657         int                     ws_id;
6658         char                    s[1024];
6659         char                    *ap, *sp;
6660         union arg               a;
6661         int                     argc = 0;
6662         pid_t                   pid;
6663         struct pid_e            *p;
6664
6665         /* suppress unused warnings since vars are needed */
6666         (void)selector;
6667         (void)flags;
6668
6669         if (getenv("SWM_STARTED"))
6670                 return (0);
6671
6672         bzero(s, sizeof s);
6673         if (sscanf(value, "ws[%d]:%1023c", &ws_id, s) != 2)
6674                 errx(1, "invalid autorun entry, should be 'ws[<idx>]:command'");
6675         ws_id--;
6676         if (ws_id < 0 || ws_id >= workspace_limit)
6677                 errx(1, "autorun: invalid workspace %d", ws_id + 1);
6678
6679         sp = expand_tilde((char *)&s);
6680
6681         /*
6682          * This is a little intricate
6683          *
6684          * If the pid already exists we simply reuse it because it means it was
6685          * used before AND not claimed by manage_window.  We get away with
6686          * altering it in the parent after INSERT because this can not be a race
6687          */
6688         a.argv = NULL;
6689         while ((ap = strsep(&sp, " \t")) != NULL) {
6690                 if (*ap == '\0')
6691                         continue;
6692                 DNPRINTF(SWM_D_SPAWN, "setautorun: arg [%s]\n", ap);
6693                 argc++;
6694                 if ((a.argv = realloc(a.argv, argc * sizeof(char *))) == NULL)
6695                         err(1, "setautorun: realloc");
6696                 a.argv[argc - 1] = ap;
6697         }
6698         free(sp);
6699
6700         if ((a.argv = realloc(a.argv, (argc + 1) * sizeof(char *))) == NULL)
6701                 err(1, "setautorun: realloc");
6702         a.argv[argc] = NULL;
6703
6704         if ((pid = fork()) == 0) {
6705                 spawn(ws_id, &a, 1);
6706                 /* NOTREACHED */
6707                 _exit(1);
6708         }
6709         free(a.argv);
6710
6711         /* parent */
6712         p = find_pid(pid);
6713         if (p == NULL) {
6714                 p = calloc(1, sizeof *p);
6715                 if (p == NULL)
6716                         return (1);
6717                 TAILQ_INSERT_TAIL(&pidlist, p, entry);
6718         }
6719
6720         p->pid = pid;
6721         p->ws = ws_id;
6722
6723         return (0);
6724 }
6725
6726 int
6727 setlayout(char *selector, char *value, int flags)
6728 {
6729         int                     ws_id, i, x, mg, ma, si, ar, f = 0;
6730         int                     st = SWM_V_STACK, num_screens;
6731         char                    s[1024];
6732         struct workspace        *ws;
6733
6734         /* suppress unused warnings since vars are needed */
6735         (void)selector;
6736         (void)flags;
6737
6738         if (getenv("SWM_STARTED"))
6739                 return (0);
6740
6741         bzero(s, sizeof s);
6742         if (sscanf(value, "ws[%d]:%d:%d:%d:%d:%1023c",
6743             &ws_id, &mg, &ma, &si, &ar, s) != 6)
6744                 errx(1, "invalid layout entry, should be 'ws[<idx>]:"
6745                     "<master_grow>:<master_add>:<stack_inc>:<always_raise>:"
6746                     "<type>'");
6747         ws_id--;
6748         if (ws_id < 0 || ws_id >= workspace_limit)
6749                 errx(1, "layout: invalid workspace %d", ws_id + 1);
6750
6751         if (!strcasecmp(s, "vertical"))
6752                 st = SWM_V_STACK;
6753         else if (!strcasecmp(s, "vertical_flip")) {
6754                 st = SWM_V_STACK;
6755                 f = 1;
6756         } else if (!strcasecmp(s, "horizontal"))
6757                 st = SWM_H_STACK;
6758         else if (!strcasecmp(s, "horizontal_flip")) {
6759                 st = SWM_H_STACK;
6760                 f = 1;
6761         } else if (!strcasecmp(s, "fullscreen"))
6762                 st = SWM_MAX_STACK;
6763         else
6764                 errx(1, "invalid layout entry, should be 'ws[<idx>]:"
6765                     "<master_grow>:<master_add>:<stack_inc>:<always_raise>:"
6766                     "<type>'");
6767
6768         num_screens = xcb_setup_roots_length(xcb_get_setup(conn));
6769         for (i = 0; i < num_screens; i++) {
6770                 ws = (struct workspace *)&screens[i].ws;
6771                 ws[ws_id].cur_layout = &layouts[st];
6772
6773                 ws[ws_id].always_raise = ar;
6774                 if (st == SWM_MAX_STACK)
6775                         continue;
6776
6777                 /* master grow */
6778                 for (x = 0; x < abs(mg); x++) {
6779                         ws[ws_id].cur_layout->l_config(&ws[ws_id],
6780                             mg >= 0 ?  SWM_ARG_ID_MASTERGROW :
6781                             SWM_ARG_ID_MASTERSHRINK);
6782                         stack();
6783                 }
6784                 /* master add */
6785                 for (x = 0; x < abs(ma); x++) {
6786                         ws[ws_id].cur_layout->l_config(&ws[ws_id],
6787                             ma >= 0 ?  SWM_ARG_ID_MASTERADD :
6788                             SWM_ARG_ID_MASTERDEL);
6789                         stack();
6790                 }
6791                 /* stack inc */
6792                 for (x = 0; x < abs(si); x++) {
6793                         ws[ws_id].cur_layout->l_config(&ws[ws_id],
6794                             si >= 0 ?  SWM_ARG_ID_STACKINC :
6795                             SWM_ARG_ID_STACKDEC);
6796                         stack();
6797                 }
6798                 /* Apply flip */
6799                 if (f) {
6800                         ws[ws_id].cur_layout->l_config(&ws[ws_id],
6801                             SWM_ARG_ID_FLIPLAYOUT);
6802                         stack();
6803                 }
6804         }
6805
6806         focus_flush();
6807
6808         return (0);
6809 }
6810
6811 /* config options */
6812 struct config_option {
6813         char                    *optname;
6814         int                     (*func)(char*, char*, int);
6815         int                     funcflags;
6816 };
6817 struct config_option configopt[] = {
6818         { "bar_enabled",                setconfvalue,   SWM_S_BAR_ENABLED },
6819         { "bar_at_bottom",              setconfvalue,   SWM_S_BAR_AT_BOTTOM },
6820         { "bar_border",                 setconfcolor,   SWM_S_COLOR_BAR_BORDER },
6821         { "bar_border_width",           setconfvalue,   SWM_S_BAR_BORDER_WIDTH },
6822         { "bar_color",                  setconfcolor,   SWM_S_COLOR_BAR },
6823         { "bar_font_color",             setconfcolor,   SWM_S_COLOR_BAR_FONT },
6824         { "bar_font",                   setconfvalue,   SWM_S_BAR_FONT },
6825         { "bar_action",                 setconfvalue,   SWM_S_BAR_ACTION },
6826         { "bar_delay",                  setconfvalue,   SWM_S_BAR_DELAY },
6827         { "bar_justify",                setconfvalue,   SWM_S_BAR_JUSTIFY },
6828         { "bar_format",                 setconfvalue,   SWM_S_BAR_FORMAT },
6829         { "keyboard_mapping",           setkeymapping,  0 },
6830         { "bind",                       setconfbinding, 0 },
6831         { "stack_enabled",              setconfvalue,   SWM_S_STACK_ENABLED },
6832         { "clock_enabled",              setconfvalue,   SWM_S_CLOCK_ENABLED },
6833         { "clock_format",               setconfvalue,   SWM_S_CLOCK_FORMAT },
6834         { "color_focus",                setconfcolor,   SWM_S_COLOR_FOCUS },
6835         { "color_unfocus",              setconfcolor,   SWM_S_COLOR_UNFOCUS },
6836         { "cycle_empty",                setconfvalue,   SWM_S_CYCLE_EMPTY },
6837         { "cycle_visible",              setconfvalue,   SWM_S_CYCLE_VISIBLE },
6838         { "workspace_limit",            setconfvalue,   SWM_S_WORKSPACE_LIMIT },
6839         { "dialog_ratio",               setconfvalue,   SWM_S_DIALOG_RATIO },
6840         { "verbose_layout",             setconfvalue,   SWM_S_VERBOSE_LAYOUT },
6841         { "modkey",                     setconfmodkey,  0 },
6842         { "program",                    setconfspawn,   0 },
6843         { "quirk",                      setconfquirk,   0 },
6844         { "region",                     setconfregion,  0 },
6845         { "spawn_term",                 setconfvalue,   SWM_S_SPAWN_TERM },
6846         { "screenshot_enabled",         setconfvalue,   SWM_S_SS_ENABLED },
6847         { "screenshot_app",             setconfvalue,   SWM_S_SS_APP },
6848         { "window_name_enabled",        setconfvalue,   SWM_S_WINDOW_NAME_ENABLED },
6849         { "urgent_enabled",             setconfvalue,   SWM_S_URGENT_ENABLED },
6850         { "term_width",                 setconfvalue,   SWM_S_TERM_WIDTH },
6851         { "title_class_enabled",        setconfvalue,   SWM_S_TITLE_CLASS_ENABLED },
6852         { "title_name_enabled",         setconfvalue,   SWM_S_TITLE_NAME_ENABLED },
6853         { "focus_mode",                 setconfvalue,   SWM_S_FOCUS_MODE },
6854         { "focus_close",                setconfvalue,   SWM_S_FOCUS_CLOSE },
6855         { "focus_close_wrap",           setconfvalue,   SWM_S_FOCUS_CLOSE_WRAP },
6856         { "focus_default",              setconfvalue,   SWM_S_FOCUS_DEFAULT },
6857         { "spawn_position",             setconfvalue,   SWM_S_SPAWN_ORDER },
6858         { "disable_border",             setconfvalue,   SWM_S_DISABLE_BORDER },
6859         { "border_width",               setconfvalue,   SWM_S_BORDER_WIDTH },
6860         { "autorun",                    setautorun,     0 },
6861         { "layout",                     setlayout,      0 },
6862 };
6863
6864 int
6865 conf_load(const char *filename, int keymapping)
6866 {
6867         FILE                    *config;
6868         char                    *line, *cp, *optsub, *optval;
6869         size_t                  linelen, lineno = 0;
6870         int                     wordlen, i, optidx;
6871         struct config_option    *opt = NULL;
6872
6873         DNPRINTF(SWM_D_CONF, "conf_load: begin\n");
6874
6875         if (filename == NULL) {
6876                 warnx("conf_load: no filename");
6877                 return (1);
6878         }
6879         if ((config = fopen(filename, "r")) == NULL) {
6880                 warn("conf_load: fopen: %s", filename);
6881                 return (1);
6882         }
6883
6884         while (!feof(config)) {
6885                 if ((line = fparseln(config, &linelen, &lineno, NULL, 0))
6886                     == NULL) {
6887                         if (ferror(config))
6888                                 err(1, "%s", filename);
6889                         else
6890                                 continue;
6891                 }
6892                 cp = line;
6893                 cp += strspn(cp, " \t\n"); /* eat whitespace */
6894                 if (cp[0] == '\0') {
6895                         /* empty line */
6896                         free(line);
6897                         continue;
6898                 }
6899                 /* get config option */
6900                 wordlen = strcspn(cp, "=[ \t\n");
6901                 if (wordlen == 0) {
6902                         warnx("%s: line %zd: no option found",
6903                             filename, lineno);
6904                         goto out;
6905                 }
6906                 optidx = -1;
6907                 for (i = 0; i < LENGTH(configopt); i++) {
6908                         opt = &configopt[i];
6909                         if (!strncasecmp(cp, opt->optname, wordlen) &&
6910                             (int)strlen(opt->optname) == wordlen) {
6911                                 optidx = i;
6912                                 break;
6913                         }
6914                 }
6915                 if (optidx == -1) {
6916                         warnx("%s: line %zd: unknown option %.*s",
6917                             filename, lineno, wordlen, cp);
6918                         goto out;
6919                 }
6920                 if (keymapping && opt && strcmp(opt->optname, "bind")) {
6921                         warnx("%s: line %zd: invalid option %.*s",
6922                             filename, lineno, wordlen, cp);
6923                         goto out;
6924                 }
6925                 cp += wordlen;
6926                 cp += strspn(cp, " \t\n"); /* eat whitespace */
6927                 /* get [selector] if any */
6928                 optsub = NULL;
6929                 if (*cp == '[') {
6930                         cp++;
6931                         wordlen = strcspn(cp, "]");
6932                         if (*cp != ']') {
6933                                 if (wordlen == 0) {
6934                                         warnx("%s: line %zd: syntax error",
6935                                             filename, lineno);
6936                                         goto out;
6937                                 }
6938
6939                                 if (asprintf(&optsub, "%.*s", wordlen, cp) ==
6940                                     -1) {
6941                                         warnx("%s: line %zd: unable to allocate"
6942                                             "memory for selector", filename,
6943                                             lineno);
6944                                         goto out;
6945                                 }
6946                         }
6947                         cp += wordlen;
6948                         cp += strspn(cp, "] \t\n"); /* eat trailing */
6949                 }
6950                 cp += strspn(cp, "= \t\n"); /* eat trailing */
6951                 /* get RHS value */
6952                 optval = strdup(cp);
6953                 /* call function to deal with it all */
6954                 if (configopt[optidx].func(optsub, optval,
6955                     configopt[optidx].funcflags) != 0)
6956                         errx(1, "%s: line %zd: invalid data for %s",
6957                             filename, lineno, configopt[optidx].optname);
6958                 free(optval);
6959                 free(optsub);
6960                 free(line);
6961         }
6962
6963         fclose(config);
6964         DNPRINTF(SWM_D_CONF, "conf_load: end\n");
6965
6966         return (0);
6967
6968 out:
6969         free(line);
6970         fclose(config);
6971         DNPRINTF(SWM_D_CONF, "conf_load: end with error.\n");
6972
6973         return (1);
6974 }
6975
6976 void
6977 set_child_transient(struct ws_win *win, xcb_window_t *trans)
6978 {
6979         struct ws_win           *parent, *w;
6980         struct swm_region       *r;
6981         struct workspace        *ws;
6982         xcb_icccm_wm_hints_t    wmh;
6983
6984         parent = find_window(win->transient);
6985         if (parent)
6986                 parent->focus_child = win;
6987         else {
6988                 DNPRINTF(SWM_D_MISC, "set_child_transient: parent doesn't exist"
6989                     " for 0x%x trans 0x%x\n", win->id, win->transient);
6990
6991                 r = root_to_region(win->wa->root, SWM_CK_ALL);
6992                 ws = r->ws;
6993                 /* parent doen't exist in our window list */
6994                 TAILQ_FOREACH(w, &ws->winlist, entry) {
6995                         if (xcb_icccm_get_wm_hints_reply(conn,
6996                             xcb_icccm_get_wm_hints(conn, w->id),
6997                             &wmh, NULL) != 1) {
6998                                 warnx("can't get hints for 0x%x", w->id);
6999                                 continue;
7000                         }
7001
7002                         if (win->hints.window_group != wmh.window_group)
7003                                 continue;
7004
7005                         w->focus_child = win;
7006                         win->transient = w->id;
7007                         *trans = w->id;
7008                         DNPRINTF(SWM_D_MISC, "set_child_transient: adjusting "
7009                             "transient to 0x%x\n", win->transient);
7010                         break;
7011                 }
7012         }
7013 }
7014
7015 pid_t
7016 window_get_pid(xcb_window_t win)
7017 {
7018         pid_t                           ret = 0;
7019         const char                      *errstr;
7020         xcb_atom_t                      apid;
7021         xcb_get_property_cookie_t       pc;
7022         xcb_get_property_reply_t        *pr;
7023
7024         apid = get_atom_from_string("_NET_WM_PID");
7025         if (apid == XCB_ATOM_NONE)
7026                 goto tryharder;
7027
7028         pc = xcb_get_property(conn, 0, win, apid, XCB_ATOM_CARDINAL, 0, 1);
7029         pr = xcb_get_property_reply(conn, pc, NULL);
7030         if (!pr)
7031                 goto tryharder;
7032         if (pr->type != XCB_ATOM_CARDINAL) {
7033                 free(pr);
7034                 goto tryharder;
7035         }
7036
7037         if (pr->type == apid && pr->format == 32)
7038                 ret = *((pid_t *)xcb_get_property_value(pr));
7039         free(pr);
7040
7041         return (ret);
7042
7043 tryharder:
7044         apid = get_atom_from_string("_SWM_PID");
7045         pc = xcb_get_property(conn, 0, win, apid, XCB_ATOM_STRING,
7046             0, SWM_PROPLEN);
7047         pr = xcb_get_property_reply(conn, pc, NULL);
7048         if (!pr)
7049                 return (0);
7050         if (pr->type != apid) {
7051                 free(pr);
7052                 return (0);
7053         }
7054
7055         ret = (pid_t)strtonum(xcb_get_property_value(pr), 0, INT_MAX, &errstr);
7056         free(pr);
7057
7058         return (ret);
7059 }
7060
7061 int
7062 get_ws_idx(xcb_window_t id)
7063 {
7064         int                     ws_idx = -1;
7065         char                    *prop = NULL;
7066         size_t                  proplen;
7067         const char              *errstr;
7068         xcb_get_property_reply_t        *gpr;
7069
7070         gpr = xcb_get_property_reply(conn,
7071                 xcb_get_property(conn, 0, id, a_swm_ws,
7072                     XCB_ATOM_STRING, 0, SWM_PROPLEN),
7073                 NULL);
7074         if (!gpr)
7075                 return (-1);
7076         if (gpr->type) {
7077                 proplen = xcb_get_property_value_length(gpr);
7078                 if (proplen > 0) {
7079                         prop = malloc(proplen + 1);
7080                         if (prop) {
7081                                 memcpy(prop,
7082                                     xcb_get_property_value(gpr),
7083                                     proplen);
7084                                 prop[proplen] = '\0';
7085                         }
7086                 }
7087         }
7088         free(gpr);
7089
7090         if (prop) {
7091                 DNPRINTF(SWM_D_PROP, "get_ws_idx: _SWM_WS: %s\n", prop);
7092                 ws_idx = (int)strtonum(prop, 0, workspace_limit - 1, &errstr);
7093                 if (errstr) {
7094                         DNPRINTF(SWM_D_PROP, "get_ws_idx: window: #%s: %s",
7095                             errstr, prop);
7096                 }
7097                 free(prop);
7098         }
7099
7100         return ws_idx;
7101 }
7102
7103 struct ws_win *
7104 manage_window(xcb_window_t id, uint16_t mapped)
7105 {
7106         xcb_window_t            trans = XCB_WINDOW_NONE;
7107         struct ws_win           *win, *ww;
7108         int                     ws_idx;
7109         char                    ws_idx_str[SWM_PROPLEN];
7110         struct swm_region       *r;
7111         struct pid_e            *p;
7112         struct quirk            *qp;
7113         uint32_t                i, wa[2];
7114         xcb_icccm_get_wm_protocols_reply_t      wpr;
7115
7116         if ((win = find_window(id)) != NULL) {
7117                 DNPRINTF(SWM_D_MISC, "manage_window: win 0x%x already "
7118                     "managed; skipping.)\n", id);
7119                 return (win);   /* Already managed. */
7120         }
7121
7122         /* See if window is on the unmanaged list. */
7123         if ((win = find_unmanaged_window(id)) != NULL) {
7124                 DNPRINTF(SWM_D_MISC, "manage_window: win 0x%x found on "
7125                     "unmanaged list.\n", id);
7126                 TAILQ_REMOVE(&win->ws->unmanagedlist, win, entry);
7127
7128                 if (win->transient)
7129                         set_child_transient(win, &trans);
7130
7131                 goto out;
7132         } else {
7133                 DNPRINTF(SWM_D_MISC, "manage_window: win 0x%x is new.\n", id);
7134         }
7135
7136         /* Create and initialize ws_win object. */
7137         if ((win = calloc(1, sizeof(struct ws_win))) == NULL)
7138                 err(1, "manage_window: calloc: failed to allocate memory for "
7139                     "new window");
7140
7141         win->id = id;
7142
7143         /* Get window geometry. */
7144         win->wa = xcb_get_geometry_reply(conn,
7145             xcb_get_geometry(conn, win->id),
7146             NULL);
7147
7148         /* Figure out which region the window belongs to. */
7149         r = root_to_region(win->wa->root, SWM_CK_ALL);
7150
7151         /* Ignore window border if there is one. */
7152         WIDTH(win) = win->wa->width;
7153         HEIGHT(win) = win->wa->height;
7154         X(win) = win->wa->x + win->wa->border_width - border_width;
7155         Y(win) = win->wa->y + win->wa->border_width - border_width;
7156         win->bordered = 1;
7157         win->mapped = mapped;
7158         win->floatmaxed = 0;
7159         win->ewmh_flags = 0;
7160         win->s = r->s;  /* this never changes */
7161
7162         store_float_geom(win, r);
7163
7164         /* Get WM_SIZE_HINTS. */
7165         xcb_icccm_get_wm_normal_hints_reply(conn,
7166             xcb_icccm_get_wm_normal_hints(conn, win->id),
7167             &win->sh, NULL);
7168
7169         /* Get WM_HINTS. */
7170         xcb_icccm_get_wm_hints_reply(conn,
7171             xcb_icccm_get_wm_hints(conn, win->id),
7172             &win->hints, NULL);
7173
7174         /* Get WM_TRANSIENT_FOR; see if window is a transient. */
7175         xcb_icccm_get_wm_transient_for_reply(conn,
7176             xcb_icccm_get_wm_transient_for(conn, win->id),
7177             &trans, NULL);
7178         if (trans) {
7179                 win->transient = trans;
7180                 set_child_transient(win, &win->transient);
7181         }
7182
7183         /* Get supported protocols. */
7184         if (xcb_icccm_get_wm_protocols_reply(conn,
7185             xcb_icccm_get_wm_protocols(conn, win->id, a_prot),
7186             &wpr, NULL)) {
7187                 for (i = 0; i < wpr.atoms_len; i++) {
7188                         if (wpr.atoms[i] == a_takefocus)
7189                                 win->take_focus = 1;
7190                         if (wpr.atoms[i] == a_delete)
7191                                 win->can_delete = 1;
7192                 }
7193                 xcb_icccm_get_wm_protocols_reply_wipe(&wpr);
7194         }
7195
7196         win->iconic = get_swm_iconic(win);
7197
7198         /* Figure out which workspace the window belongs to. */
7199         if ((p = find_pid(window_get_pid(win->id))) != NULL) {
7200                 win->ws = &r->s->ws[p->ws];
7201                 TAILQ_REMOVE(&pidlist, p, entry);
7202                 free(p);
7203                 p = NULL;
7204         } else if ((ws_idx = get_ws_idx(win->id)) != -1 &&
7205             !win->transient) {
7206                 /* _SWM_WS is set; use that. */
7207                 win->ws = &r->s->ws[ws_idx];
7208         } else if (trans && (ww = find_window(trans)) != NULL) {
7209                 /* Launch transients in the same ws as parent. */
7210                 win->ws = ww->ws;
7211         } else {
7212                 win->ws = r->ws;
7213         }
7214
7215         /* Set the _SWM_WS atom so we can remember this after reincarnation. */
7216         if (snprintf(ws_idx_str, SWM_PROPLEN, "%d", win->ws->idx) <
7217             SWM_PROPLEN) {
7218                 DNPRINTF(SWM_D_PROP, "manage_window: set _SWM_WS: %s\n",
7219                     ws_idx_str);
7220                 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, win->id,
7221                     a_swm_ws, XCB_ATOM_STRING, 8, strlen(ws_idx_str),
7222                     ws_idx_str);
7223         }
7224
7225         /* Handle EWMH */
7226         ewmh_autoquirk(win);
7227
7228         /* Determine initial quirks. */
7229         if (xcb_icccm_get_wm_class_reply(conn,
7230             xcb_icccm_get_wm_class(conn, win->id),
7231             &win->ch, NULL)) {
7232                 DNPRINTF(SWM_D_CLASS, "manage_window: class: %s, name: %s\n",
7233                     win->ch.class_name, win->ch.instance_name);
7234
7235                 /* java is retarded so treat it special */
7236                 if (strstr(win->ch.instance_name, "sun-awt")) {
7237                         DNPRINTF(SWM_D_CLASS, "manage_window: java window "
7238                             "detected.\n");
7239                         win->java = 1;
7240                 }
7241
7242                 TAILQ_FOREACH(qp, &quirks, entry) {
7243                         if (!strcmp(win->ch.class_name, qp->class) &&
7244                             !strcmp(win->ch.instance_name, qp->name)) {
7245                                 DNPRINTF(SWM_D_CLASS, "manage_window: on quirks"
7246                                     "list; mask: 0x%lx\n", qp->quirk);
7247                                 if (qp->quirk & SWM_Q_FLOAT)
7248                                         win->floating = 1;
7249                                 win->quirks = qp->quirk;
7250                         }
7251                 }
7252         }
7253
7254         /* Alter window position if quirky */
7255         if (win->quirks & SWM_Q_ANYWHERE)
7256                 win->manual = 1;
7257
7258         /* Reset font sizes (the bruteforce way; no default keybinding). */
7259         if (win->quirks & SWM_Q_XTERM_FONTADJ) {
7260                 for (i = 0; i < SWM_MAX_FONT_STEPS; i++)
7261                         fake_keypress(win, XK_KP_Subtract, XCB_MOD_MASK_SHIFT);
7262                 for (i = 0; i < SWM_MAX_FONT_STEPS; i++)
7263                         fake_keypress(win, XK_KP_Add, XCB_MOD_MASK_SHIFT);
7264         }
7265
7266         /* Make sure window is positioned inside its region, if its active. */
7267         if (win->ws->r) {
7268                 constrain_window(win, win->ws->r, 0);
7269                 update_window(win);
7270         }
7271
7272         /* Select which X events to monitor and set border pixel color. */
7273         wa[0] = win->s->c[SWM_S_COLOR_UNFOCUS].pixel;
7274         wa[1] = XCB_EVENT_MASK_ENTER_WINDOW | XCB_EVENT_MASK_PROPERTY_CHANGE |
7275             XCB_EVENT_MASK_STRUCTURE_NOTIFY;
7276 #ifdef SWM_DEBUG
7277         wa[1] |= XCB_EVENT_MASK_LEAVE_WINDOW | XCB_EVENT_MASK_FOCUS_CHANGE;
7278 #endif
7279
7280         xcb_change_window_attributes(conn, win->id, XCB_CW_BORDER_PIXEL |
7281             XCB_CW_EVENT_MASK, wa);
7282
7283 out:
7284         /* Figure out where to stack the window in the workspace. */
7285         if (trans && (ww = find_window(trans)))
7286                 TAILQ_INSERT_AFTER(&win->ws->winlist, ww, win, entry);
7287         else if (win->ws->focus && spawn_position == SWM_STACK_ABOVE)
7288                 TAILQ_INSERT_AFTER(&win->ws->winlist, win->ws->focus, win,
7289                     entry);
7290         else if (win->ws->focus && spawn_position == SWM_STACK_BELOW)
7291                 TAILQ_INSERT_BEFORE(win->ws->focus, win, entry);
7292         else switch (spawn_position) {
7293         default:
7294         case SWM_STACK_TOP:
7295         case SWM_STACK_ABOVE:
7296                 TAILQ_INSERT_TAIL(&win->ws->winlist, win, entry);
7297                 break;
7298         case SWM_STACK_BOTTOM:
7299         case SWM_STACK_BELOW:
7300                 TAILQ_INSERT_HEAD(&win->ws->winlist, win, entry);
7301         }
7302
7303         /* Get initial _NET_WM_STATE */
7304         ewmh_get_win_state(win);
7305         /* Set initial _NET_WM_ALLOWED_ACTIONS */
7306         ewmh_update_actions(win);
7307
7308         grabbuttons(win);
7309
7310         DNPRINTF(SWM_D_MISC, "manage_window: done. window: 0x%x, (x,y) w x h: "
7311             "(%d,%d) %d x %d, ws: %d, iconic: %s, transient: 0x%x\n", win->id,
7312             X(win), Y(win), WIDTH(win), HEIGHT(win), win->ws->idx,
7313             YESNO(win->iconic), win->transient);
7314
7315         return (win);
7316 }
7317
7318 void
7319 free_window(struct ws_win *win)
7320 {
7321         DNPRINTF(SWM_D_MISC, "free_window: window: 0x%x\n", win->id);
7322
7323         if (win == NULL)
7324                 return;
7325
7326         TAILQ_REMOVE(&win->ws->unmanagedlist, win, entry);
7327
7328         if (win->wa)
7329                 free(win->wa);
7330
7331         xcb_icccm_get_wm_class_reply_wipe(&win->ch);
7332
7333         kill_refs(win);
7334
7335         /* paint memory */
7336         memset(win, 0xff, sizeof *win); /* XXX kill later */
7337
7338         free(win);
7339         DNPRINTF(SWM_D_MISC, "free_window: done.\n");
7340 }
7341
7342 void
7343 unmanage_window(struct ws_win *win)
7344 {
7345         struct ws_win           *parent;
7346
7347         if (win == NULL)
7348                 return;
7349
7350         DNPRINTF(SWM_D_MISC, "unmanage_window: window: 0x%x\n", win->id);
7351
7352         if (win->transient) {
7353                 parent = find_window(win->transient);
7354                 if (parent)
7355                         parent->focus_child = NULL;
7356         }
7357
7358         TAILQ_REMOVE(&win->ws->winlist, win, entry);
7359         TAILQ_INSERT_TAIL(&win->ws->unmanagedlist, win, entry);
7360 }
7361
7362 void
7363 expose(xcb_expose_event_t *e)
7364 {
7365         int                     i, num_screens;
7366         struct swm_region       *r;
7367
7368         DNPRINTF(SWM_D_EVENT, "expose: window: 0x%x\n", e->window);
7369
7370         num_screens = xcb_setup_roots_length(xcb_get_setup(conn));
7371         for (i = 0; i < num_screens; i++)
7372                 TAILQ_FOREACH(r, &screens[i].rl, entry)
7373                         if (e->window == WINID(r->bar))
7374                                 bar_update();
7375
7376         xcb_flush(conn);
7377 }
7378
7379 #ifdef SWM_DEBUG
7380 void
7381 focusin(xcb_focus_in_event_t *e)
7382 {
7383         DNPRINTF(SWM_D_EVENT, "focusin: window: 0x%x, mode: %s(%u), "
7384             "detail: %s(%u)\n", e->event, get_notify_mode_label(e->mode),
7385             e->mode, get_notify_detail_label(e->detail), e->detail);
7386 }
7387
7388 void
7389 focusout(xcb_focus_out_event_t *e)
7390 {
7391         DNPRINTF(SWM_D_EVENT, "focusout: window: 0x%x, mode: %s(%u), "
7392             "detail: %s(%u)\n", e->event, get_notify_mode_label(e->mode),
7393             e->mode, get_notify_detail_label(e->detail), e->detail);
7394 }
7395 #endif
7396
7397 void
7398 keypress(xcb_key_press_event_t *e)
7399 {
7400         xcb_keysym_t            keysym;
7401         struct key              *kp;
7402
7403         keysym = xcb_key_press_lookup_keysym(syms, e, 0);
7404
7405         DNPRINTF(SWM_D_EVENT, "keypress: %u %u\n", e->detail, keysym);
7406
7407         if ((kp = key_lookup(CLEANMASK(e->state), keysym)) == NULL)
7408                 return;
7409
7410         last_event_time = e->time;
7411
7412         if (kp->funcid == KF_SPAWN_CUSTOM)
7413                 spawn_custom(root_to_region(e->root, SWM_CK_ALL),
7414                     &(keyfuncs[kp->funcid].args), kp->spawn_name);
7415         else if (keyfuncs[kp->funcid].func)
7416                 keyfuncs[kp->funcid].func(root_to_region(e->root, SWM_CK_ALL),
7417                     &(keyfuncs[kp->funcid].args));
7418 }
7419
7420 void
7421 buttonpress(xcb_button_press_event_t *e)
7422 {
7423         struct ws_win           *win = NULL;
7424         struct swm_region       *r, *old_r;
7425         int                     i;
7426         int                     handled = 0;
7427
7428         DNPRINTF(SWM_D_EVENT, "buttonpress: win (x,y): 0x%x (%d,%d), "
7429             "detail: %u, time: %u, root (x,y): 0x%x (%d,%d), child: 0x%x, "
7430             "state: %u, same_screen: %s\n", e->event, e->event_x, e->event_y,
7431             e->detail, e->time, e->root, e->root_x, e->root_y, e->child,
7432             e->state, YESNO(e->same_screen));
7433
7434         if (e->event == e->root) {
7435                 if (e->child != 0) {
7436                         win = find_window(e->child);
7437                         /* Pass ButtonPress to window if it isn't managed. */
7438                         if (win == NULL)
7439                                 goto out;
7440                 } else {
7441                         /* Focus on empty region */
7442                         /* If no windows on region if its empty. */
7443                         r = root_to_region(e->root, SWM_CK_POINTER);
7444                         if (r && TAILQ_EMPTY(&r->ws->winlist)) {
7445                                 old_r = root_to_region(e->root, SWM_CK_FOCUS);
7446                                 if (old_r && old_r != r)
7447                                         unfocus_win(old_r->ws->focus);
7448
7449                                 xcb_set_input_focus(conn,
7450                                     XCB_INPUT_FOCUS_PARENT, e->root, e->time);
7451
7452                                 /* Clear bar since empty. */
7453                                 bar_update();
7454
7455                                 handled = 1;
7456                                 goto out;
7457                         }
7458                 }
7459         } else {
7460                 win = find_window(e->event);
7461         }
7462
7463         if (win == NULL)
7464                 return;
7465
7466         last_event_time = e->time;
7467
7468         focus_win(get_focus_magic(win));
7469
7470         for (i = 0; i < LENGTH(buttons); i++)
7471                 if (client_click == buttons[i].action && buttons[i].func &&
7472                     buttons[i].button == e->detail &&
7473                     CLEANMASK(buttons[i].mask) == CLEANMASK(e->state)) {
7474                         buttons[i].func(win, &buttons[i].args);
7475                         handled = 1;
7476                 }
7477
7478 out:
7479         if (!handled) {
7480                 DNPRINTF(SWM_D_EVENT, "buttonpress: passing to window.\n");
7481                 /* Replay event to event window */
7482                 xcb_allow_events(conn, XCB_ALLOW_REPLAY_POINTER, e->time);
7483         } else {
7484                 DNPRINTF(SWM_D_EVENT, "buttonpress: handled.\n");
7485                 /* Unfreeze grab events. */
7486                 xcb_allow_events(conn, XCB_ALLOW_SYNC_POINTER, e->time);
7487         }
7488
7489         xcb_flush(conn);
7490 }
7491
7492 #ifdef SWM_DEBUG
7493 void
7494 print_win_geom(xcb_window_t w)
7495 {
7496         xcb_get_geometry_reply_t        *wa;
7497
7498         wa = xcb_get_geometry_reply(conn, xcb_get_geometry(conn, w), NULL);
7499
7500         if (!wa) {
7501                 DNPRINTF(SWM_D_MISC, "print_win_geom: window not found: 0x%x\n",
7502                     w);
7503                 return;
7504         }
7505
7506         DNPRINTF(SWM_D_MISC, "print_win_geom: window: 0x%x, root: 0x%x, "
7507             "depth: %u, (x,y) w x h: (%d,%d) %d x %d, border: %d\n",
7508             w, wa->root, wa->depth, wa->x,  wa->y, wa->width, wa->height,
7509             wa->border_width);
7510
7511         free(wa);
7512 }
7513 #endif
7514
7515 #ifdef SWM_DEBUG
7516 char *
7517 get_stack_mode_name(uint8_t mode)
7518 {
7519         char    *name;
7520
7521         switch(mode) {
7522         case XCB_STACK_MODE_ABOVE:
7523                 name = "Above";
7524                 break;
7525         case XCB_STACK_MODE_BELOW:
7526                 name = "Below";
7527                 break;
7528         case XCB_STACK_MODE_TOP_IF:
7529                 name = "TopIf";
7530                 break;
7531         case XCB_STACK_MODE_BOTTOM_IF:
7532                 name = "BottomIf";
7533                 break;
7534         case XCB_STACK_MODE_OPPOSITE:
7535                 name = "Opposite";
7536                 break;
7537         default:
7538                 name = "Unknown";
7539         }
7540
7541         return name;
7542 }
7543 #endif
7544
7545 void
7546 configurerequest(xcb_configure_request_event_t *e)
7547 {
7548         struct ws_win           *win;
7549         struct swm_region       *r = NULL;
7550         int                     new = 0, i = 0;
7551         uint16_t                mask = 0;
7552         uint32_t                wc[7] = {0};
7553
7554         if ((win = find_window(e->window)) == NULL)
7555                 if ((win = find_unmanaged_window(e->window)) == NULL)
7556                         new = 1;
7557
7558 #ifdef SWM_DEBUG
7559         if (swm_debug & SWM_D_EVENT) {
7560                 print_win_geom(e->window);
7561
7562                 DNPRINTF(SWM_D_EVENT, "configurerequest: window: 0x%x, "
7563                     "parent: 0x%x, new: %s, value_mask: %u { ", e->window,
7564                     e->parent, YESNO(new), e->value_mask);
7565                 if (e->value_mask & XCB_CONFIG_WINDOW_X)
7566                         DPRINTF("X: %d ", e->x);
7567                 if (e->value_mask & XCB_CONFIG_WINDOW_Y)
7568                         DPRINTF("Y: %d ", e->y);
7569                 if (e->value_mask & XCB_CONFIG_WINDOW_WIDTH)
7570                         DPRINTF("W: %u ", e->width);
7571                 if (e->value_mask & XCB_CONFIG_WINDOW_HEIGHT)
7572                         DPRINTF("H: %u ", e->height);
7573                 if (e->value_mask & XCB_CONFIG_WINDOW_BORDER_WIDTH)
7574                         DPRINTF("Border: %u ", e->border_width);
7575                 if (e->value_mask & XCB_CONFIG_WINDOW_SIBLING)
7576                         DPRINTF("Sibling: 0x%x ", e->sibling);
7577                 if (e->value_mask & XCB_CONFIG_WINDOW_STACK_MODE)
7578                         DPRINTF("StackMode: %s(%u) ",
7579                             get_stack_mode_name(e->stack_mode), e->stack_mode);
7580                 DPRINTF("}\n");
7581         }
7582 #endif
7583
7584         if (new) {
7585                 if (e->value_mask & XCB_CONFIG_WINDOW_X) {
7586                         mask |= XCB_CONFIG_WINDOW_X;
7587                         wc[i++] = e->x;
7588                 }
7589                 if (e->value_mask & XCB_CONFIG_WINDOW_Y) {
7590                         mask |= XCB_CONFIG_WINDOW_Y;
7591                         wc[i++] = e->y;
7592                 }
7593                 if (e->value_mask & XCB_CONFIG_WINDOW_WIDTH) {
7594                         mask |= XCB_CONFIG_WINDOW_WIDTH;
7595                         wc[i++] = e->width;
7596                 }
7597                 if (e->value_mask & XCB_CONFIG_WINDOW_HEIGHT) {
7598                         mask |= XCB_CONFIG_WINDOW_HEIGHT;
7599                         wc[i++] = e->height;
7600                 }
7601                 if (e->value_mask & XCB_CONFIG_WINDOW_BORDER_WIDTH) {
7602                         mask |= XCB_CONFIG_WINDOW_BORDER_WIDTH;
7603                         wc[i++] = e->border_width;
7604                 }
7605                 if (e->value_mask & XCB_CONFIG_WINDOW_SIBLING) {
7606                         mask |= XCB_CONFIG_WINDOW_SIBLING;
7607                         wc[i++] = e->sibling;
7608                 }
7609                 if (e->value_mask & XCB_CONFIG_WINDOW_STACK_MODE) {
7610                         mask |= XCB_CONFIG_WINDOW_STACK_MODE;
7611                         wc[i++] = e->stack_mode;
7612                 }
7613
7614                 if (mask != 0) {
7615                         xcb_configure_window(conn, e->window, mask, wc);
7616                         xcb_flush(conn);
7617                 }
7618         } else if ((!win->manual || win->quirks & SWM_Q_ANYWHERE) &&
7619             !(win->ewmh_flags & EWMH_F_FULLSCREEN)) {
7620                 if (win->ws->r)
7621                         r = win->ws->r;
7622                 else if (win->ws->old_r)
7623                         r = win->ws->old_r;
7624
7625                 /* windows are centered unless ANYWHERE quirk is set. */
7626                 if (win->quirks & SWM_Q_ANYWHERE) {
7627                         if (e->value_mask & XCB_CONFIG_WINDOW_X) {
7628                                 win->g_float.x = e->x;
7629                                 if (r)
7630                                         win->g_float.x -= X(r);
7631                         }
7632
7633                         if (e->value_mask & XCB_CONFIG_WINDOW_Y) {
7634                                 win->g_float.y = e->y;
7635                                 if (r)
7636                                         win->g_float.y -= Y(r);
7637                         }
7638                 }
7639
7640                 if (e->value_mask & XCB_CONFIG_WINDOW_WIDTH)
7641                         win->g_float.w = e->width;
7642
7643                 if (e->value_mask & XCB_CONFIG_WINDOW_HEIGHT)
7644                         win->g_float.h = e->height;
7645
7646                 win->g_floatvalid = 1;
7647
7648                 if (win->floating && r && (win->transient ||
7649                     win->ws->cur_layout != &layouts[SWM_MAX_STACK])) {
7650                         WIDTH(win) = win->g_float.w;
7651                         HEIGHT(win) = win->g_float.h;
7652
7653                         stack_floater(win, win->ws->r);
7654
7655                         focus_flush();
7656                 } else {
7657                         config_win(win, e);
7658                         xcb_flush(conn);
7659                 }
7660         } else {
7661                 config_win(win, e);
7662                 xcb_flush(conn);
7663         }
7664
7665         DNPRINTF(SWM_D_EVENT, "configurerequest: done.\n");
7666 }
7667
7668 void
7669 configurenotify(xcb_configure_notify_event_t *e)
7670 {
7671         struct ws_win           *win;
7672
7673         DNPRINTF(SWM_D_EVENT, "configurenotify: win 0x%x, event win: 0x%x, "
7674             "(x,y) WxH: (%d,%d) %ux%u, border: %u, above_sibling: 0x%x, "
7675             "override_redirect: %s\n", e->window, e->event, e->x, e->y,
7676             e->width, e->height, e->border_width, e->above_sibling,
7677             YESNO(e->override_redirect));
7678
7679         win = find_window(e->window);
7680         if (win) {
7681                 xcb_icccm_get_wm_normal_hints_reply(conn,
7682                     xcb_icccm_get_wm_normal_hints(conn, win->id),
7683                     &win->sh, NULL);
7684                 adjust_font(win);
7685                 if (font_adjusted) {
7686                         stack();
7687                         xcb_flush(conn);
7688                 }
7689         }
7690 }
7691
7692 void
7693 destroynotify(xcb_destroy_notify_event_t *e)
7694 {
7695         struct ws_win           *win;
7696
7697         DNPRINTF(SWM_D_EVENT, "destroynotify: window: 0x%x\n", e->window);
7698
7699         if ((win = find_window(e->window)) == NULL) {
7700                 if ((win = find_unmanaged_window(e->window)) == NULL)
7701                         return;
7702                 free_window(win);
7703                 return;
7704         }
7705
7706         if (focus_mode != SWM_FOCUS_FOLLOW) {
7707                 /* If we were focused, make sure we focus on something else. */
7708                 if (win == win->ws->focus)
7709                         win->ws->focus_pending = get_focus_prev(win);
7710         }
7711
7712         unmanage_window(win);
7713         stack();
7714
7715         if (focus_mode != SWM_FOCUS_FOLLOW) {
7716                 if (win->ws->focus_pending) {
7717                         focus_win(win->ws->focus_pending);
7718                         win->ws->focus_pending = NULL;
7719                 }
7720         }
7721
7722         free_window(win);
7723
7724         focus_flush();
7725 }
7726
7727 #ifdef SWM_DEBUG
7728 char *
7729 get_notify_detail_label(uint8_t detail)
7730 {
7731         char *label;
7732
7733         switch (detail) {
7734         case XCB_NOTIFY_DETAIL_ANCESTOR:
7735                 label = "Ancestor";
7736                 break;
7737         case XCB_NOTIFY_DETAIL_VIRTUAL:
7738                 label = "Virtual";
7739                 break;
7740         case XCB_NOTIFY_DETAIL_INFERIOR:
7741                 label = "Inferior";
7742                 break;
7743         case XCB_NOTIFY_DETAIL_NONLINEAR:
7744                 label = "Nonlinear";
7745                 break;
7746         case XCB_NOTIFY_DETAIL_NONLINEAR_VIRTUAL:
7747                 label = "NonlinearVirtual";
7748                 break;
7749         case XCB_NOTIFY_DETAIL_POINTER:
7750                 label = "Pointer";
7751                 break;
7752         case XCB_NOTIFY_DETAIL_POINTER_ROOT:
7753                 label = "PointerRoot";
7754                 break;
7755         case XCB_NOTIFY_DETAIL_NONE:
7756                 label = "None";
7757                 break;
7758         default:
7759                 label = "Unknown";
7760         }
7761
7762         return label;
7763 }
7764
7765 char *
7766 get_notify_mode_label(uint8_t mode)
7767 {
7768         char *label;
7769
7770         switch (mode) {
7771         case XCB_NOTIFY_MODE_NORMAL:
7772                 label = "Normal";
7773                 break;
7774         case XCB_NOTIFY_MODE_GRAB:
7775                 label = "Grab";
7776                 break;
7777         case XCB_NOTIFY_MODE_UNGRAB:
7778                 label = "Ungrab";
7779                 break;
7780         case XCB_NOTIFY_MODE_WHILE_GRABBED:
7781                 label = "WhileGrabbed";
7782                 break;
7783         default:
7784                 label = "Unknown";
7785         }
7786
7787         return label;
7788 }
7789 #endif
7790
7791 void
7792 enternotify(xcb_enter_notify_event_t *e)
7793 {
7794         struct ws_win           *win;
7795         struct swm_region       *old_r, *r;
7796
7797         DNPRINTF(SWM_D_FOCUS, "enternotify: time: %u, win (x,y): 0x%x "
7798             "(%d,%d), mode: %s(%d), detail: %s(%d), root (x,y): 0x%x (%d,%d), "
7799             "child: 0x%x, same_screen_focus: %s, state: %d\n",
7800             e->time, e->event, e->event_x, e->event_y,
7801             get_notify_mode_label(e->mode), e->mode,
7802             get_notify_detail_label(e->detail), e->detail,
7803             e->root, e->root_x, e->root_y, e->child,
7804             YESNO(e->same_screen_focus), e->state);
7805
7806         if (focus_mode == SWM_FOCUS_MANUAL &&
7807             e->mode == XCB_NOTIFY_MODE_NORMAL) {
7808                 DNPRINTF(SWM_D_EVENT, "enternotify: manual focus; ignoring.\n");
7809                 return;
7810         }
7811
7812         last_event_time = e->time;
7813
7814         if ((win = find_window(e->event)) == NULL) {
7815                 if (e->event == e->root) {
7816                         /* If no windows on pointer region, then focus root. */
7817                         r = root_to_region(e->root, SWM_CK_POINTER);
7818                         if (TAILQ_EMPTY(&r->ws->winlist)) {
7819                                 old_r = root_to_region(e->root, SWM_CK_FOCUS);
7820                                 if (old_r && old_r != r)
7821                                         unfocus_win(old_r->ws->focus);
7822
7823                                 xcb_set_input_focus(conn,
7824                                     XCB_INPUT_FOCUS_PARENT, e->root, e->time);
7825
7826                                 /* Clear bar since empty. */
7827                                 bar_update();
7828
7829                                 focus_flush();
7830                         }
7831                 } else {
7832                         DNPRINTF(SWM_D_EVENT, "enternotify: window is NULL; "
7833                             "ignoring\n");
7834                 }
7835                 return;
7836         }
7837
7838         focus_win(get_focus_magic(win));
7839
7840         xcb_flush(conn);
7841 }
7842
7843 #ifdef SWM_DEBUG
7844 void
7845 leavenotify(xcb_leave_notify_event_t *e)
7846 {
7847         DNPRINTF(SWM_D_FOCUS, "leavenotify: time: %u, win (x,y): 0x%x "
7848             "(%d,%d), mode: %s(%d), detail: %s(%d), root (x,y): 0x%x (%d,%d), "
7849             "child: 0x%x, same_screen_focus: %s, state: %d\n",
7850             e->time, e->event, e->event_x, e->event_y,
7851             get_notify_mode_label(e->mode), e->mode,
7852             get_notify_detail_label(e->detail), e->detail,
7853             e->root, e->root_x, e->root_y, e->child,
7854             YESNO(e->same_screen_focus), e->state);
7855 }
7856 #endif
7857
7858 /* lets us use one switch statement for arbitrary mode/detail combinations */
7859 #define MERGE_MEMBERS(a,b)      (((a & 0xffff) << 16) | (b & 0xffff))
7860
7861 void
7862 mapnotify(xcb_map_notify_event_t *e)
7863 {
7864         struct ws_win           *win;
7865
7866         DNPRINTF(SWM_D_EVENT, "mapnotify: window: 0x%x\n", e->window);
7867
7868         if ((win = find_window(e->window)) == NULL)
7869                 win = manage_window(e->window, 1);
7870
7871         win->mapped = 1;
7872         set_win_state(win, XCB_ICCCM_WM_STATE_NORMAL);
7873
7874         if (focus_mode != SWM_FOCUS_FOLLOW) {
7875                 if (win->ws->focus_pending == win) {
7876                         focus_win(win);
7877                         win->ws->focus_pending = NULL;
7878                         focus_flush();
7879                 }
7880         }
7881
7882         xcb_flush(conn);
7883 }
7884
7885 void
7886 mappingnotify(xcb_mapping_notify_event_t *e)
7887 {
7888         xcb_refresh_keyboard_mapping(syms, e);
7889
7890         if (e->request == XCB_MAPPING_KEYBOARD)
7891                 grabkeys();
7892 }
7893
7894 void
7895 maprequest(xcb_map_request_event_t *e)
7896 {
7897         struct ws_win           *win;
7898         xcb_get_window_attributes_reply_t *war;
7899
7900         DNPRINTF(SWM_D_EVENT, "maprequest: win 0x%x\n",
7901             e->window);
7902
7903         war = xcb_get_window_attributes_reply(conn,
7904             xcb_get_window_attributes(conn, e->window),
7905             NULL);
7906         if (war == NULL) {
7907                 DNPRINTF(SWM_D_EVENT, "maprequest: window lost.\n");
7908                 goto out;
7909         }
7910
7911         if (war->override_redirect) {
7912                 DNPRINTF(SWM_D_EVENT, "maprequest: override_redirect; "
7913                     "skipping.\n");
7914                 goto out;
7915         }
7916
7917         win = manage_window(e->window,
7918             (war->map_state == XCB_MAP_STATE_VIEWABLE));
7919
7920         /* The new window should get focus; prepare. */
7921         if (focus_mode != SWM_FOCUS_FOLLOW)
7922                 win->ws->focus_pending = get_focus_magic(win);
7923
7924         /* All windows need to be mapped if they are in the current workspace.*/
7925         if (win->ws->r)
7926                 stack();
7927
7928         /* Ignore EnterNotify to handle the mapnotify without interference. */
7929         if (focus_mode == SWM_FOCUS_DEFAULT)
7930                 event_drain(XCB_ENTER_NOTIFY);
7931 out:
7932         free(war);
7933         DNPRINTF(SWM_D_EVENT, "maprequest: done.\n");
7934 }
7935
7936 #ifdef SWM_DEBUG
7937 char *
7938 get_atom_name(xcb_atom_t atom)
7939 {
7940         char                            *name = NULL;
7941 #if 0
7942         /*
7943          * This should be disabled during most debugging since
7944          * xcb_get_* causes an xcb_flush.
7945          */
7946         size_t                          len;
7947         xcb_get_atom_name_reply_t       *r;
7948
7949         r = xcb_get_atom_name_reply(conn,
7950             xcb_get_atom_name(conn, atom),
7951             NULL);
7952         if (r) {
7953                 len = xcb_get_atom_name_name_length(r);
7954                 if (len > 0) {
7955                         name = malloc(len + 1);
7956                         if (name) {
7957                                 memcpy(name, xcb_get_atom_name_name(r), len);
7958                                 name[len] = '\0';
7959                         }
7960                 }
7961                 free(r);
7962         }
7963 #else
7964         (void)atom;
7965 #endif
7966         return (name);
7967 }
7968 #endif
7969
7970 void
7971 propertynotify(xcb_property_notify_event_t *e)
7972 {
7973         struct ws_win           *win;
7974 #ifdef SWM_DEBUG
7975         char                    *name;
7976
7977         name = get_atom_name(e->atom);
7978         DNPRINTF(SWM_D_EVENT, "propertynotify: window: 0x%x, atom: %s(%u), "
7979             "time: %#x, state: %u\n", e->window, name, e->atom, e->time,
7980             e->state);
7981         free(name);
7982 #endif
7983         win = find_window(e->window);
7984         if (win == NULL)
7985                 return;
7986
7987         last_event_time = e->time;
7988
7989         if (e->atom == a_swm_iconic) {
7990                 if (e->state == XCB_PROPERTY_NEW_VALUE) {
7991                         if (focus_mode != SWM_FOCUS_FOLLOW)
7992                                 win->ws->focus_pending = get_focus_prev(win);
7993
7994                         unfocus_win(win);
7995                         unmap_window(win);
7996
7997                         if (win->ws->r) {
7998                                 stack();
7999                                 if (focus_mode != SWM_FOCUS_FOLLOW) {
8000                                         focus_win(win->ws->focus_pending);
8001                                         win->ws->focus_pending = NULL;
8002                                 }
8003                                 focus_flush();
8004                         }
8005                 } else if (e->state == XCB_PROPERTY_DELETE) {
8006                         /* The window is no longer iconic, restack ws. */
8007                         if (focus_mode != SWM_FOCUS_FOLLOW)
8008                                 win->ws->focus_pending = get_focus_magic(win);
8009
8010                         stack();
8011
8012                         /* Flush EnterNotify for mapnotify, if needed. */
8013                         focus_flush();
8014                 }
8015         } else if (e->atom == a_state) {
8016                 /* State just changed, make sure it gets focused if mapped. */
8017                 if (e->state == XCB_PROPERTY_NEW_VALUE) {
8018                         if (focus_mode != SWM_FOCUS_FOLLOW) {
8019                                 if (win->mapped &&
8020                                     win->ws->focus_pending == win) {
8021                                         focus_win(win->ws->focus_pending);
8022                                         win->ws->focus_pending = NULL;
8023                                 }
8024                         }
8025                 }
8026         } else if (e->atom == XCB_ATOM_WM_CLASS ||
8027             e->atom == XCB_ATOM_WM_NAME) {
8028                 bar_update();
8029         }
8030
8031         xcb_flush(conn);
8032 }
8033
8034 void
8035 unmapnotify(xcb_unmap_notify_event_t *e)
8036 {
8037         struct ws_win           *win;
8038         struct workspace        *ws;
8039
8040         DNPRINTF(SWM_D_EVENT, "unmapnotify: window: 0x%x\n", e->window);
8041
8042         /* If we aren't managing the window, then ignore. */
8043         win = find_window(e->window);
8044         if (win == NULL)
8045                 return;
8046
8047         ws = win->ws;
8048
8049         if (getstate(e->window) != XCB_ICCCM_WM_STATE_ICONIC)
8050                 set_win_state(win, XCB_ICCCM_WM_STATE_ICONIC);
8051
8052         if (win->mapped) {
8053                 /* window unmapped itself */
8054                 /* do unmap/unfocus/restack and unmanage */
8055                 win->mapped = 0;
8056
8057                 /* If win was focused, make sure to focus on something else. */
8058                 if (win == ws->focus) {
8059                         if (focus_mode != SWM_FOCUS_FOLLOW) {
8060                                 ws->focus_pending = get_focus_prev(win);
8061                                 DNPRINTF(SWM_D_EVENT, "unmapnotify: "
8062                                     "focus_pending: 0x%x\n",
8063                                     WINID(ws->focus_pending));
8064                         }
8065
8066                         unfocus_win(win);
8067                 }
8068
8069                 unmanage_window(win);
8070
8071                 if (ws->r)
8072                         stack();
8073
8074                 if (focus_mode == SWM_FOCUS_FOLLOW) {
8075                         if (ws->r)
8076                                 focus_win(get_pointer_win(ws->r->s->root));
8077                 } else {
8078                         if (ws->focus_pending) {
8079                                 focus_win(ws->focus_pending);
8080                                 ws->focus_pending = NULL;
8081                         }
8082                 }
8083         }
8084
8085         if (getstate(e->window) == XCB_ICCCM_WM_STATE_NORMAL)
8086                 set_win_state(win, XCB_ICCCM_WM_STATE_ICONIC);
8087
8088         focus_flush();
8089 }
8090
8091 #if 0
8092 void
8093 visibilitynotify(xcb_visibility_notify_event_t *e)
8094 {
8095         DNPRINTF(SWM_D_EVENT, "visibilitynotify: window: 0x%x\n",
8096             e->window);
8097 }
8098 #endif
8099
8100 void
8101 clientmessage(xcb_client_message_event_t *e)
8102 {
8103         struct ws_win *win;
8104         xcb_map_request_event_t mre;
8105 #ifdef SWM_DEBUG
8106         char                    *name;
8107
8108         name = get_atom_name(e->type);
8109         DNPRINTF(SWM_D_EVENT, "clientmessage: window: 0x%x, atom: %s(%u)\n",
8110             e->window, name, e->type);
8111         free(name);
8112 #endif
8113         win = find_window(e->window);
8114
8115         if (win == NULL) {
8116                 if (e->type == ewmh[_NET_ACTIVE_WINDOW].atom) {
8117                         /* Manage the window with maprequest. */
8118                         DNPRINTF(SWM_D_EVENT, "clientmessage: request focus on "
8119                             "unmanaged window.\n");
8120                         mre.window = e->window;
8121                         maprequest(&mre);
8122                 }
8123                 return;
8124         }
8125
8126         if (e->type == ewmh[_NET_ACTIVE_WINDOW].atom) {
8127                 DNPRINTF(SWM_D_EVENT, "clientmessage: _NET_ACTIVE_WINDOW\n");
8128                 focus_win(win);
8129         }
8130         if (e->type == ewmh[_NET_CLOSE_WINDOW].atom) {
8131                 DNPRINTF(SWM_D_EVENT, "clientmessage: _NET_CLOSE_WINDOW\n");
8132                 if (win->can_delete)
8133                         client_msg(win, a_delete, 0);
8134                 else
8135                         xcb_kill_client(conn, win->id);
8136         }
8137         if (e->type == ewmh[_NET_MOVERESIZE_WINDOW].atom) {
8138                 DNPRINTF(SWM_D_EVENT,
8139                     "clientmessage: _NET_MOVERESIZE_WINDOW\n");
8140                 if (win->floating) {
8141                         if (e->data.data32[0] & (1<<8)) /* x */
8142                                 X(win) = e->data.data32[1];
8143                         if (e->data.data32[0] & (1<<9)) /* y */
8144                                 Y(win) = e->data.data32[2];
8145                         if (e->data.data32[0] & (1<<10)) /* width */
8146                                 WIDTH(win) = e->data.data32[3];
8147                         if (e->data.data32[0] & (1<<11)) /* height */
8148                                 HEIGHT(win) = e->data.data32[4];
8149
8150                         update_window(win);
8151                 }
8152                 else {
8153                         /* TODO: Change stack sizes */
8154                         /* notify no change was made. */
8155                         config_win(win, NULL);
8156                 }
8157         }
8158         if (e->type == ewmh[_NET_WM_STATE].atom) {
8159                 DNPRINTF(SWM_D_EVENT, "clientmessage: _NET_WM_STATE\n");
8160                 ewmh_update_win_state(win, e->data.data32[1], e->data.data32[0]);
8161                 if (e->data.data32[2])
8162                         ewmh_update_win_state(win, e->data.data32[2],
8163                             e->data.data32[0]);
8164
8165                 stack();
8166         }
8167
8168         focus_flush();
8169 }
8170
8171 void
8172 check_conn(void)
8173 {
8174         int      errcode = xcb_connection_has_error(conn);
8175 #ifdef XCB_CONN_ERROR
8176         char    *s;
8177         switch (errcode) {
8178         case XCB_CONN_ERROR:
8179                 s = "Socket error, pipe error or other stream error.";
8180                 break;
8181         case XCB_CONN_CLOSED_EXT_NOTSUPPORTED:
8182                 s = "Extension not supported.";
8183                 break;
8184         case XCB_CONN_CLOSED_MEM_INSUFFICIENT:
8185                 s = "Insufficient memory.";
8186                 break;
8187         case XCB_CONN_CLOSED_REQ_LEN_EXCEED:
8188                 s = "Request length was exceeded.";
8189                 break;
8190         case XCB_CONN_CLOSED_PARSE_ERR:
8191                 s = "Error parsing display string.";
8192                 break;
8193         default:
8194                 s = "Unknown error.";
8195         }
8196         if (errcode)
8197                 errx(errcode, "X CONNECTION ERROR: %s", s);
8198 #else
8199         if (errcode)
8200                 errx(errcode, "X CONNECTION ERROR");
8201 #endif
8202 }
8203
8204 int
8205 enable_wm(void)
8206 {
8207         int                     num_screens, i;
8208         const uint32_t          val = XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT |
8209             XCB_EVENT_MASK_ENTER_WINDOW;
8210         xcb_screen_t            *sc;
8211         xcb_void_cookie_t       wac;
8212         xcb_generic_error_t     *error;
8213
8214         /* this causes an error if some other window manager is running */
8215         num_screens = xcb_setup_roots_length(xcb_get_setup(conn));
8216         for (i = 0; i < num_screens; i++) {
8217                 if ((sc = get_screen(i)) == NULL)
8218                         errx(1, "ERROR: can't get screen %d.", i);
8219                 DNPRINTF(SWM_D_INIT, "enable_wm: screen %d, root: 0x%x\n",
8220                     i, sc->root);
8221                 wac = xcb_change_window_attributes_checked(conn, sc->root,
8222                     XCB_CW_EVENT_MASK, &val);
8223                 if ((error = xcb_request_check(conn, wac))) {
8224                         DNPRINTF(SWM_D_INIT, "enable_wm: error_code: %u\n",
8225                             error->error_code);
8226                         free(error);
8227                         return 1;
8228                 }
8229
8230                 /* click to focus on empty region */
8231                 xcb_grab_button(conn, 1, sc->root, BUTTONMASK,
8232                     XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC, XCB_WINDOW_NONE,
8233                     XCB_CURSOR_NONE, XCB_BUTTON_INDEX_1, XCB_BUTTON_MASK_ANY);
8234         }
8235
8236         return 0;
8237 }
8238
8239 void
8240 new_region(struct swm_screen *s, int x, int y, int w, int h)
8241 {
8242         struct swm_region       *r, *n;
8243         struct workspace        *ws = NULL;
8244         int                     i;
8245
8246         DNPRINTF(SWM_D_MISC, "new region: screen[%d]:%dx%d+%d+%d\n",
8247              s->idx, w, h, x, y);
8248
8249         /* remove any conflicting regions */
8250         n = TAILQ_FIRST(&s->rl);
8251         while (n) {
8252                 r = n;
8253                 n = TAILQ_NEXT(r, entry);
8254                 if (X(r) < (x + w) &&
8255                     (X(r) + WIDTH(r)) > x &&
8256                     Y(r) < (y + h) &&
8257                     (Y(r) + HEIGHT(r)) > y) {
8258                         if (r->ws->r != NULL)
8259                                 r->ws->old_r = r->ws->r;
8260                         r->ws->r = NULL;
8261                         bar_cleanup(r);
8262                         TAILQ_REMOVE(&s->rl, r, entry);
8263                         TAILQ_INSERT_TAIL(&s->orl, r, entry);
8264                 }
8265         }
8266
8267         /* search old regions for one to reuse */
8268
8269         /* size + location match */
8270         TAILQ_FOREACH(r, &s->orl, entry)
8271                 if (X(r) == x && Y(r) == y &&
8272                     HEIGHT(r) == h && WIDTH(r) == w)
8273                         break;
8274
8275         /* size match */
8276         TAILQ_FOREACH(r, &s->orl, entry)
8277                 if (HEIGHT(r) == h && WIDTH(r) == w)
8278                         break;
8279
8280         if (r != NULL) {
8281                 TAILQ_REMOVE(&s->orl, r, entry);
8282                 /* try to use old region's workspace */
8283                 if (r->ws->r == NULL)
8284                         ws = r->ws;
8285         } else
8286                 if ((r = calloc(1, sizeof(struct swm_region))) == NULL)
8287                         err(1, "new_region: calloc: failed to allocate memory "
8288                             "for screen");
8289
8290         /* if we don't have a workspace already, find one */
8291         if (ws == NULL) {
8292                 for (i = 0; i < workspace_limit; i++)
8293                         if (s->ws[i].r == NULL) {
8294                                 ws = &s->ws[i];
8295                                 break;
8296                         }
8297         }
8298
8299         if (ws == NULL)
8300                 errx(1, "new_region: no free workspaces");
8301
8302         X(r) = x;
8303         Y(r) = y;
8304         WIDTH(r) = w;
8305         HEIGHT(r) = h;
8306         r->s = s;
8307         r->ws = ws;
8308         r->ws_prior = NULL;
8309         ws->r = r;
8310         outputs++;
8311         TAILQ_INSERT_TAIL(&s->rl, r, entry);
8312 }
8313
8314 void
8315 scan_xrandr(int i)
8316 {
8317 #ifdef SWM_XRR_HAS_CRTC
8318         int                                             c;
8319         int                                             ncrtc = 0;
8320 #endif /* SWM_XRR_HAS_CRTC */
8321         struct swm_region                               *r;
8322         int                                             num_screens;
8323         xcb_randr_get_screen_resources_current_cookie_t src;
8324         xcb_randr_get_screen_resources_current_reply_t  *srr;
8325         xcb_randr_get_crtc_info_cookie_t                cic;
8326         xcb_randr_get_crtc_info_reply_t                 *cir = NULL;
8327         xcb_randr_crtc_t                                *crtc;
8328         xcb_screen_t                                    *screen;
8329
8330         DNPRINTF(SWM_D_MISC, "scan_xrandr: screen: %d\n", i);
8331
8332         if ((screen = get_screen(i)) == NULL)
8333                 errx(1, "ERROR: can't get screen %d.", i);
8334
8335         num_screens = xcb_setup_roots_length(xcb_get_setup(conn));
8336         if (i >= num_screens)
8337                 errx(1, "scan_xrandr: invalid screen");
8338
8339         /* remove any old regions */
8340         while ((r = TAILQ_FIRST(&screens[i].rl)) != NULL) {
8341                 r->ws->old_r = r->ws->r = NULL;
8342                 bar_cleanup(r);
8343                 TAILQ_REMOVE(&screens[i].rl, r, entry);
8344                 TAILQ_INSERT_TAIL(&screens[i].orl, r, entry);
8345         }
8346         outputs = 0;
8347
8348         /* map virtual screens onto physical screens */
8349 #ifdef SWM_XRR_HAS_CRTC
8350         if (xrandr_support) {
8351                 src = xcb_randr_get_screen_resources_current(conn,
8352                     screens[i].root);
8353                 srr = xcb_randr_get_screen_resources_current_reply(conn, src,
8354                     NULL);
8355                 if (srr == NULL) {
8356                         new_region(&screens[i], 0, 0,
8357                             screen->width_in_pixels,
8358                             screen->height_in_pixels);
8359                         goto out;
8360                 } else
8361                         ncrtc = srr->num_crtcs;
8362
8363                 crtc = xcb_randr_get_screen_resources_current_crtcs(srr);
8364                 for (c = 0; c < ncrtc; c++) {
8365                         cic = xcb_randr_get_crtc_info(conn, crtc[c],
8366                             XCB_CURRENT_TIME);
8367                         cir = xcb_randr_get_crtc_info_reply(conn, cic, NULL);
8368                         if (cir == NULL)
8369                                 continue;
8370                         if (cir->num_outputs == 0) {
8371                                 free(cir);
8372                                 continue;
8373                         }
8374
8375                         if (cir->mode == 0)
8376                                 new_region(&screens[i], 0, 0,
8377                                     screen->width_in_pixels,
8378                                     screen->height_in_pixels);
8379                         else
8380                                 new_region(&screens[i],
8381                                     cir->x, cir->y, cir->width, cir->height);
8382                         free(cir);
8383                 }
8384                 free(srr);
8385         }
8386 #endif /* SWM_XRR_HAS_CRTC */
8387
8388         /* If detection failed, create a single region that spans the screen. */
8389         if (TAILQ_EMPTY(&screens[i].rl))
8390                 new_region(&screens[i], 0, 0, screen->width_in_pixels,
8391                     screen->height_in_pixels);
8392
8393 out:
8394         DNPRINTF(SWM_D_MISC, "scan_xrandr: done.\n");
8395 }
8396
8397 void
8398 screenchange(xcb_randr_screen_change_notify_event_t *e)
8399 {
8400         struct swm_region               *r;
8401         int                             i, num_screens;
8402
8403         DNPRINTF(SWM_D_EVENT, "screenchange: root: 0x%x\n", e->root);
8404
8405         num_screens = xcb_setup_roots_length(xcb_get_setup(conn));
8406         /* silly event doesn't include the screen index */
8407         for (i = 0; i < num_screens; i++)
8408                 if (screens[i].root == e->root)
8409                         break;
8410         if (i >= num_screens)
8411                 errx(1, "screenchange: screen not found");
8412
8413         /* brute force for now, just re-enumerate the regions */
8414         scan_xrandr(i);
8415
8416 #ifdef SWM_DEBUG
8417         print_win_geom(e->root);
8418 #endif
8419         /* add bars to all regions */
8420         for (i = 0; i < num_screens; i++)
8421                 TAILQ_FOREACH(r, &screens[i].rl, entry)
8422                         bar_setup(r);
8423         stack();
8424 }
8425
8426 void
8427 grab_windows(void)
8428 {
8429         xcb_window_t            *wins = NULL, trans;
8430         int                     no;
8431         int                     i, j, num_screens;
8432         uint16_t                state, manage, mapped;
8433
8434         xcb_query_tree_cookie_t                 qtc;
8435         xcb_query_tree_reply_t                  *qtr;
8436         xcb_get_window_attributes_cookie_t      c;
8437         xcb_get_window_attributes_reply_t       *r;
8438         xcb_get_property_cookie_t               pc;
8439
8440         DNPRINTF(SWM_D_INIT, "grab_windows: begin\n");
8441         num_screens = xcb_setup_roots_length(xcb_get_setup(conn));
8442         for (i = 0; i < num_screens; i++) {
8443                 qtc = xcb_query_tree(conn, screens[i].root);
8444                 qtr = xcb_query_tree_reply(conn, qtc, NULL);
8445                 if (!qtr)
8446                         continue;
8447                 wins = xcb_query_tree_children(qtr);
8448                 no = xcb_query_tree_children_length(qtr);
8449                 /* attach windows to a region */
8450                 /* normal windows */
8451                 DNPRINTF(SWM_D_INIT, "grab_windows: grab top level windows.\n");
8452                 for (j = 0; j < no; j++) {
8453                         c = xcb_get_window_attributes(conn, wins[j]);
8454                         r = xcb_get_window_attributes_reply(conn, c, NULL);
8455                         if (!r) {
8456                                 DNPRINTF(SWM_D_INIT, "grab_windows: skip %#x; "
8457                                     "doesn't exist.\n", wins[j]);
8458                                 continue;
8459                         }
8460                         if (r->override_redirect) {
8461                                 DNPRINTF(SWM_D_INIT, "grab_windows: skip %#x; "
8462                                     "override_redirect set.\n", wins[j]);
8463                                 free(r);
8464                                 continue;
8465                         }
8466
8467                         pc = xcb_icccm_get_wm_transient_for(conn, wins[j]);
8468                         if (xcb_icccm_get_wm_transient_for_reply(conn, pc,
8469                             &trans, NULL)) {
8470                                 DNPRINTF(SWM_D_INIT, "grab_windows: skip %#x; "
8471                                     "is transient for %#x.\n", wins[j], trans);
8472                                 free(r);
8473                                 continue;
8474                         }
8475
8476                         state = getstate(wins[j]);
8477                         manage = state != XCB_ICCCM_WM_STATE_WITHDRAWN;
8478                         mapped = r->map_state != XCB_MAP_STATE_UNMAPPED;
8479                         if (mapped || manage)
8480                                 manage_window(wins[j], mapped);
8481                         free(r);
8482                 }
8483                 /* transient windows */
8484                 DNPRINTF(SWM_D_INIT, "grab_windows: grab transient windows.\n");
8485                 for (j = 0; j < no; j++) {
8486                         c = xcb_get_window_attributes(conn, wins[j]);
8487                         r = xcb_get_window_attributes_reply(conn, c, NULL);
8488                         if (!r) {
8489                                 DNPRINTF(SWM_D_INIT, "grab_windows: skip %#x; "
8490                                     "doesn't exist.\n", wins[j]);
8491                                 continue;
8492                         }
8493                         if (r->override_redirect) {
8494                                 DNPRINTF(SWM_D_INIT, "grab_windows: skip %#x; "
8495                                     "override_redirect set.\n", wins[j]);
8496                                 free(r);
8497                                 continue;
8498                         }
8499
8500                         state = getstate(wins[j]);
8501                         manage = state != XCB_ICCCM_WM_STATE_WITHDRAWN;
8502                         mapped = r->map_state != XCB_MAP_STATE_UNMAPPED;
8503                         pc = xcb_icccm_get_wm_transient_for(conn, wins[j]);
8504                         if (xcb_icccm_get_wm_transient_for_reply(conn, pc,
8505                             &trans, NULL) && manage)
8506                                 manage_window(wins[j], mapped);
8507                         free(r);
8508                 }
8509                 free(qtr);
8510         }
8511         DNPRINTF(SWM_D_INIT, "grab_windows: done.\n");
8512 }
8513
8514 void
8515 setup_screens(void)
8516 {
8517         int                     i, j, k, num_screens;
8518         struct workspace        *ws;
8519         uint32_t                gcv[1], wa[1];
8520         const xcb_query_extension_reply_t *qep;
8521         xcb_screen_t                            *screen;
8522         xcb_randr_query_version_cookie_t        c;
8523         xcb_randr_query_version_reply_t         *r;
8524
8525         num_screens = xcb_setup_roots_length(xcb_get_setup(conn));
8526         if ((screens = calloc(num_screens,
8527              sizeof(struct swm_screen))) == NULL)
8528                 err(1, "setup_screens: calloc: failed to allocate memory for "
8529                     "screens");
8530
8531         /* initial Xrandr setup */
8532         xrandr_support = 0;
8533         qep = xcb_get_extension_data(conn, &xcb_randr_id);
8534         if (qep->present) {
8535                 c = xcb_randr_query_version(conn, 1, 1);
8536                 r = xcb_randr_query_version_reply(conn, c, NULL);
8537                 if (r) {
8538                         if (r->major_version >= 1) {
8539                                 xrandr_support = 1;
8540                                 xrandr_eventbase = qep->first_event;
8541                         }
8542                         free(r);
8543                 }
8544         }
8545
8546         wa[0] = cursors[XC_LEFT_PTR].cid;
8547
8548         /* map physical screens */
8549         for (i = 0; i < num_screens; i++) {
8550                 DNPRINTF(SWM_D_WS, "setup_screens: init screen: %d\n", i);
8551                 screens[i].idx = i;
8552                 TAILQ_INIT(&screens[i].rl);
8553                 TAILQ_INIT(&screens[i].orl);
8554                 if ((screen = get_screen(i)) == NULL)
8555                         errx(1, "ERROR: can't get screen %d.", i);
8556                 screens[i].root = screen->root;
8557
8558                 /* set default colors */
8559                 setscreencolor("red", i + 1, SWM_S_COLOR_FOCUS);
8560                 setscreencolor("rgb:88/88/88", i + 1, SWM_S_COLOR_UNFOCUS);
8561                 setscreencolor("rgb:00/80/80", i + 1, SWM_S_COLOR_BAR_BORDER);
8562                 setscreencolor("black", i + 1, SWM_S_COLOR_BAR);
8563                 setscreencolor("rgb:a0/a0/a0", i + 1, SWM_S_COLOR_BAR_FONT);
8564
8565                 /* create graphics context on screen */
8566                 screens[i].bar_gc = xcb_generate_id(conn);
8567                 gcv[0] = 0;
8568                 xcb_create_gc(conn, screens[i].bar_gc, screens[i].root,
8569                     XCB_GC_GRAPHICS_EXPOSURES, gcv);
8570
8571                 /* set default cursor */
8572                 xcb_change_window_attributes(conn, screens[i].root,
8573                     XCB_CW_CURSOR, wa);
8574
8575                 /* init all workspaces */
8576                 /* XXX these should be dynamically allocated too */
8577                 for (j = 0; j < SWM_WS_MAX; j++) {
8578                         ws = &screens[i].ws[j];
8579                         ws->idx = j;
8580                         ws->name = NULL;
8581                         ws->focus = NULL;
8582                         ws->focus_prev = NULL;
8583                         ws->focus_pending = NULL;
8584                         ws->r = NULL;
8585                         ws->old_r = NULL;
8586                         TAILQ_INIT(&ws->winlist);
8587                         TAILQ_INIT(&ws->unmanagedlist);
8588
8589                         for (k = 0; layouts[k].l_stack != NULL; k++)
8590                                 if (layouts[k].l_config != NULL)
8591                                         layouts[k].l_config(ws,
8592                                             SWM_ARG_ID_STACKINIT);
8593                         ws->cur_layout = &layouts[0];
8594                         ws->cur_layout->l_string(ws);
8595                 }
8596
8597                 scan_xrandr(i);
8598
8599                 if (xrandr_support)
8600                         xcb_randr_select_input(conn, screens[i].root,
8601                             XCB_RANDR_NOTIFY_MASK_SCREEN_CHANGE);
8602         }
8603 }
8604
8605 void
8606 setup_globals(void)
8607 {
8608         if ((bar_fonts = strdup(SWM_BAR_FONTS)) == NULL)
8609                 err(1, "setup_globals: strdup: failed to allocate memory.");
8610
8611         if ((clock_format = strdup("%a %b %d %R %Z %Y")) == NULL)
8612                 err(1, "setup_globals: strdup: failed to allocate memory.");
8613
8614         if ((syms = xcb_key_symbols_alloc(conn)) == NULL)
8615                 errx(1, "unable to allocate key symbols");
8616
8617         a_state = get_atom_from_string("WM_STATE");
8618         a_prot = get_atom_from_string("WM_PROTOCOLS");
8619         a_delete = get_atom_from_string("WM_DELETE_WINDOW");
8620         a_takefocus = get_atom_from_string("WM_TAKE_FOCUS");
8621         a_wmname = get_atom_from_string("WM_NAME");
8622         a_netwmname = get_atom_from_string("_NET_WM_NAME");
8623         a_utf8_string = get_atom_from_string("UTF8_STRING");
8624         a_string = get_atom_from_string("STRING");
8625         a_swm_iconic = get_atom_from_string("_SWM_ICONIC");
8626         a_swm_ws = get_atom_from_string("_SWM_WS");
8627 }
8628
8629 void
8630 workaround(void)
8631 {
8632         int                     i, num_screens;
8633         xcb_atom_t              netwmcheck;
8634         xcb_window_t            root, win;
8635
8636         /* work around sun jdk bugs, code from wmname */
8637         netwmcheck = get_atom_from_string("_NET_SUPPORTING_WM_CHECK");
8638
8639         num_screens = xcb_setup_roots_length(xcb_get_setup(conn));
8640         for (i = 0; i < num_screens; i++) {
8641                 root = screens[i].root;
8642
8643                 win = xcb_generate_id(conn);
8644                 xcb_create_window(conn, XCB_COPY_FROM_PARENT, win, root,
8645                     0, 0, 1, 1, 0, XCB_WINDOW_CLASS_INPUT_OUTPUT,
8646                     XCB_COPY_FROM_PARENT, 0, NULL);
8647
8648                 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, root,
8649                     netwmcheck, XCB_ATOM_WINDOW, 32, 1, &win);
8650                 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, win,
8651                     netwmcheck, XCB_ATOM_WINDOW, 32, 1, &win);
8652                 xcb_change_property(conn, XCB_PROP_MODE_REPLACE, win,
8653                     a_netwmname, a_utf8_string, 8, strlen("LG3D"), "LG3D");
8654         }
8655 }
8656
8657 void
8658 shutdown_cleanup(void)
8659 {
8660         int i, num_screens;
8661
8662         /* disable alarm because the following code may not be interrupted */
8663         alarm(0);
8664         if (signal(SIGALRM, SIG_IGN) == SIG_ERR)
8665                 err(1, "can't disable alarm");
8666
8667         bar_extra_stop();
8668         bar_extra = 1;
8669         unmap_all();
8670
8671         cursors_cleanup();
8672
8673         teardown_ewmh();
8674
8675         num_screens = xcb_setup_roots_length(xcb_get_setup(conn));
8676         for (i = 0; i < num_screens; ++i) {
8677                 if (screens[i].bar_gc != 0)
8678                         xcb_free_gc(conn, screens[i].bar_gc);
8679                 if (!bar_font_legacy)
8680                         XftColorFree(display, DefaultVisual(display, i),
8681                             DefaultColormap(display, i), &bar_font_color);
8682         }
8683
8684         if (bar_font_legacy)
8685                 XFreeFontSet(display, bar_fs);
8686         else {
8687                 XftFontClose(display, bar_font);
8688         }
8689
8690         xcb_key_symbols_free(syms);
8691         xcb_flush(conn);
8692         xcb_disconnect(conn);
8693 }
8694
8695 void
8696 event_error(xcb_generic_error_t *e)
8697 {
8698         (void)e;
8699
8700         DNPRINTF(SWM_D_EVENT, "event_error: %s(%u) from %s(%u), sequence: %u, "
8701             "resource_id: %u, minor_code: %u\n",
8702             xcb_event_get_error_label(e->error_code), e->error_code,
8703             xcb_event_get_request_label(e->major_code), e->major_code,
8704             e->sequence, e->resource_id, e->minor_code);
8705 }
8706
8707 void
8708 event_handle(xcb_generic_event_t *evt)
8709 {
8710         uint8_t type = XCB_EVENT_RESPONSE_TYPE(evt);
8711
8712         DNPRINTF(SWM_D_EVENT, "XCB Event: %s(%d), seq %u\n",
8713             xcb_event_get_label(XCB_EVENT_RESPONSE_TYPE(evt)),
8714             XCB_EVENT_RESPONSE_TYPE(evt), evt->sequence);
8715
8716         switch (type) {
8717 #define EVENT(type, callback) case type: callback((void *)evt); return
8718         EVENT(0, event_error);
8719         EVENT(XCB_BUTTON_PRESS, buttonpress);
8720         /*EVENT(XCB_BUTTON_RELEASE, buttonpress);*/
8721         /*EVENT(XCB_CIRCULATE_NOTIFY, );*/
8722         /*EVENT(XCB_CIRCULATE_REQUEST, );*/
8723         EVENT(XCB_CLIENT_MESSAGE, clientmessage);
8724         /*EVENT(XCB_COLORMAP_NOTIFY, );*/
8725         EVENT(XCB_CONFIGURE_NOTIFY, configurenotify);
8726         EVENT(XCB_CONFIGURE_REQUEST, configurerequest);
8727         /*EVENT(XCB_CREATE_NOTIFY, );*/
8728         EVENT(XCB_DESTROY_NOTIFY, destroynotify);
8729         EVENT(XCB_ENTER_NOTIFY, enternotify);
8730         EVENT(XCB_EXPOSE, expose);
8731 #ifdef SWM_DEBUG
8732         EVENT(XCB_FOCUS_IN, focusin);
8733         EVENT(XCB_FOCUS_OUT, focusout);
8734 #endif
8735         /*EVENT(XCB_GRAPHICS_EXPOSURE, );*/
8736         /*EVENT(XCB_GRAVITY_NOTIFY, );*/
8737         EVENT(XCB_KEY_PRESS, keypress);
8738         /*EVENT(XCB_KEY_RELEASE, keypress);*/
8739         /*EVENT(XCB_KEYMAP_NOTIFY, );*/
8740 #ifdef SWM_DEBUG
8741         EVENT(XCB_LEAVE_NOTIFY, leavenotify);
8742 #endif
8743         EVENT(XCB_MAP_NOTIFY, mapnotify);
8744         EVENT(XCB_MAP_REQUEST, maprequest);
8745         EVENT(XCB_MAPPING_NOTIFY, mappingnotify);
8746         /*EVENT(XCB_MOTION_NOTIFY, );*/
8747         /*EVENT(XCB_NO_EXPOSURE, );*/
8748         EVENT(XCB_PROPERTY_NOTIFY, propertynotify);
8749         /*EVENT(XCB_REPARENT_NOTIFY, );*/
8750         /*EVENT(XCB_RESIZE_REQUEST, );*/
8751         /*EVENT(XCB_SELECTION_CLEAR, );*/
8752         /*EVENT(XCB_SELECTION_NOTIFY, );*/
8753         /*EVENT(XCB_SELECTION_REQUEST, );*/
8754         EVENT(XCB_UNMAP_NOTIFY, unmapnotify);
8755         /*EVENT(XCB_VISIBILITY_NOTIFY, visibilitynotify);*/
8756 #undef EVENT
8757         }
8758         if (type - xrandr_eventbase == XCB_RANDR_SCREEN_CHANGE_NOTIFY)
8759                 screenchange((void *)evt);
8760 }
8761
8762 int
8763 main(int argc, char *argv[])
8764 {
8765         struct swm_region       *r, *rr;
8766         struct ws_win           *winfocus = NULL;
8767         char                    conf[PATH_MAX], *cfile = NULL;
8768         struct stat             sb;
8769         int                     xfd, i, num_screens;
8770         struct sigaction        sact;
8771         xcb_generic_event_t     *evt;
8772         struct timeval          tv;
8773         fd_set                  rd;
8774
8775         /* suppress unused warning since var is needed */
8776         (void)argc;
8777
8778         time_started = time(NULL);
8779
8780         start_argv = argv;
8781         warnx("Welcome to spectrwm V%s Build: %s", SPECTRWM_VERSION, buildstr);
8782         if (!setlocale(LC_CTYPE, "") || !setlocale(LC_TIME, ""))
8783                 warnx("no locale support");
8784
8785         /* handle some signals */
8786         bzero(&sact, sizeof(sact));
8787         sigemptyset(&sact.sa_mask);
8788         sact.sa_flags = 0;
8789         sact.sa_handler = sighdlr;
8790         sigaction(SIGINT, &sact, NULL);
8791         sigaction(SIGQUIT, &sact, NULL);
8792         sigaction(SIGTERM, &sact, NULL);
8793         sigaction(SIGHUP, &sact, NULL);
8794
8795         sact.sa_handler = sighdlr;
8796         sact.sa_flags = SA_NOCLDSTOP;
8797         sigaction(SIGCHLD, &sact, NULL);
8798
8799         if (!(display = XOpenDisplay(0)))
8800                 errx(1, "can not open display");
8801
8802         conn = XGetXCBConnection(display);
8803         if (xcb_connection_has_error(conn))
8804                 errx(1, "can not get XCB connection");
8805
8806         XSetEventQueueOwner(display, XCBOwnsEventQueue);
8807
8808         xcb_prefetch_extension_data(conn, &xcb_randr_id);
8809         xfd = xcb_get_file_descriptor(conn);
8810
8811         /* look for local and global conf file */
8812         pwd = getpwuid(getuid());
8813         if (pwd == NULL)
8814                 errx(1, "invalid user: %d", getuid());
8815
8816         xcb_grab_server(conn);
8817         xcb_aux_sync(conn);
8818
8819         /* flush all events */
8820         while ((evt = xcb_poll_for_event(conn))) {
8821                 if (XCB_EVENT_RESPONSE_TYPE(evt) == 0)
8822                         event_handle(evt);
8823                 free(evt);
8824         }
8825
8826         if (enable_wm() != 0)
8827                 errx(1, "another window manager is currently running");
8828
8829         /* Load Xcursors and/or cursorfont glyph cursors. */
8830         cursors_load();
8831
8832         xcb_aux_sync(conn);
8833
8834         setup_globals();
8835         setup_screens();
8836         setup_keys();
8837         setup_quirks();
8838         setup_spawn();
8839
8840         /* load config */
8841         for (i = 0; ; i++) {
8842                 conf[0] = '\0';
8843                 switch (i) {
8844                 case 0:
8845                         /* ~ */
8846                         snprintf(conf, sizeof conf, "%s/.%s",
8847                             pwd->pw_dir, SWM_CONF_FILE);
8848                         break;
8849                 case 1:
8850                         /* global */
8851                         snprintf(conf, sizeof conf, "/etc/%s",
8852                             SWM_CONF_FILE);
8853                         break;
8854                 case 2:
8855                         /* ~ compat */
8856                         snprintf(conf, sizeof conf, "%s/.%s",
8857                             pwd->pw_dir, SWM_CONF_FILE_OLD);
8858                         break;
8859                 case 3:
8860                         /* global compat */
8861                         snprintf(conf, sizeof conf, "/etc/%s",
8862                             SWM_CONF_FILE_OLD);
8863                         break;
8864                 default:
8865                         goto noconfig;
8866                 }
8867
8868                 if (strlen(conf) && stat(conf, &sb) != -1)
8869                         if (S_ISREG(sb.st_mode)) {
8870                                 cfile = conf;
8871                                 break;
8872                         }
8873         }
8874 noconfig:
8875
8876         /* load conf (if any) */
8877         if (cfile)
8878                 conf_load(cfile, SWM_CONF_DEFAULT);
8879
8880         setup_ewmh();
8881         /* set some values to work around bad programs */
8882         workaround();
8883         /* grab existing windows (before we build the bars) */
8884         grab_windows();
8885
8886         if (getenv("SWM_STARTED") == NULL)
8887                 setenv("SWM_STARTED", "YES", 1);
8888
8889         /* setup all bars */
8890         num_screens = xcb_setup_roots_length(xcb_get_setup(conn));
8891         for (i = 0; i < num_screens; i++)
8892                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
8893                         if (winfocus == NULL)
8894                                 winfocus = TAILQ_FIRST(&r->ws->winlist);
8895                         bar_setup(r);
8896                 }
8897
8898         grabkeys();
8899         stack();
8900
8901         xcb_ungrab_server(conn);
8902         xcb_flush(conn);
8903
8904         while (running) {
8905                 while ((evt = xcb_poll_for_event(conn))) {
8906                         if (!running)
8907                                 goto done;
8908                         event_handle(evt);
8909                         free(evt);
8910                 }
8911
8912                 /* If just (re)started, set default focus if needed. */
8913                 if (winfocus && focus_mode != SWM_FOCUS_FOLLOW) {
8914                         rr = winfocus->ws->r;
8915                         if (rr == NULL) {
8916                                 /* not a visible window */
8917                                 winfocus = NULL;
8918                                 continue;
8919                         }
8920
8921                         focus_win(get_region_focus(rr));
8922                         focus_flush();
8923                         winfocus = NULL;
8924                         continue;
8925                 }
8926
8927                 FD_ZERO(&rd);
8928                 FD_SET(xfd, &rd);
8929                 tv.tv_sec = 1;
8930                 tv.tv_usec = 0;
8931                 if (select(xfd + 1, &rd, NULL, NULL, &tv) == -1)
8932                         if (errno != EINTR) {
8933                                 DNPRINTF(SWM_D_MISC, "select failed");
8934                         }
8935                 if (restart_wm)
8936                         restart(NULL, NULL);
8937                 if (search_resp)
8938                         search_do_resp();
8939                 if (!running)
8940                         goto done;
8941                 if (bar_alarm) {
8942                         bar_alarm = 0;
8943                         bar_update();
8944                 }
8945         }
8946 done:
8947         shutdown_cleanup();
8948
8949         return (0);
8950 }