scrotwm.c

   1 /* $scrotwm$ */
   2 /*
   3  * Copyright (c) 2009 Marco Peereboom <marco@peereboom.us>
   4  * Copyright (c) 2009 Ryan McBride <mcbride@countersiege.com>
   5  * Copyright (c) 2009 Darrin Chandler <dwchandler@stilyagin.com>
   6  * Copyright (c) 2009 Pierre-Yves Ritschard <pyr@spootnik.org>
   7  *
   8  * Permission to use, copy, modify, and distribute this software for any
   9  * purpose with or without fee is hereby granted, provided that the above
  10  * copyright notice and this permission notice appear in all copies.
  11  *
  12  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  13  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  14  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  15  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  16  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  17  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  18  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  19  */
  20 /*
  21  * Much code and ideas taken from dwm under the following license:
  22  * MIT/X Consortium License
  23  *
  24  * 2006-2008 Anselm R Garbe <garbeam at gmail dot com>
  25  * 2006-2007 Sander van Dijk <a dot h dot vandijk at gmail dot com>
  26  * 2006-2007 Jukka Salmi <jukka at salmi dot ch>
  27  * 2007 Premysl Hruby <dfenze at gmail dot com>
  28  * 2007 Szabolcs Nagy <nszabolcs at gmail dot com>
  29  * 2007 Christof Musik <christof at sendfax dot de>
  30  * 2007-2008 Enno Gottox Boland <gottox at s01 dot de>
  31  * 2007-2008 Peter Hartlich <sgkkr at hartlich dot com>
  32  * 2008 Martin Hurton <martin dot hurton at gmail dot com>
  33  *
  34  * Permission is hereby granted, free of charge, to any person obtaining a
  35  * copy of this software and associated documentation files (the "Software"),
  36  * to deal in the Software without restriction, including without limitation
  37  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  38  * and/or sell copies of the Software, and to permit persons to whom the
  39  * Software is furnished to do so, subject to the following conditions:
  40  *
  41  * The above copyright notice and this permission notice shall be included in
  42  * all copies or substantial portions of the Software.
  43  *
  44  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  45  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  46  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  47  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  48  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  49  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  50  * DEALINGS IN THE SOFTWARE.
  51  */
  52
  53 static const char       *cvstag = "$scrotwm$";
  54
  55 #define SWM_VERSION     "0.9.24"
  56
  57 #include <stdio.h>
  58 #include <stdlib.h>
  59 #include <err.h>
  60 #include <errno.h>
  61 #include <fcntl.h>
  62 #include <locale.h>
  63 #include <unistd.h>
  64 #include <time.h>
  65 #include <signal.h>
  66 #include <string.h>
  67 #include <util.h>
  68 #include <pwd.h>
  69 #include <ctype.h>
  70
  71 #include <sys/types.h>
  72 #include <sys/time.h>
  73 #include <sys/stat.h>
  74 #include <sys/wait.h>
  75 #include <sys/queue.h>
  76 #include <sys/param.h>
  77 #include <sys/select.h>
  78
  79 #include <X11/cursorfont.h>
  80 #include <X11/keysym.h>
  81 #include <X11/Xatom.h>
  82 #include <X11/Xlib.h>
  83 #include <X11/Xproto.h>
  84 #include <X11/Xutil.h>
  85 #include <X11/extensions/Xrandr.h>
  86
  87 #ifdef __OSX__
  88 #include <osx.h>
  89 #endif
  90
  91 #if RANDR_MAJOR < 1
  92 #  error XRandR versions less than 1.0 are not supported
  93 #endif
  94
  95 #if RANDR_MAJOR >= 1
  96 #if RANDR_MINOR >= 2
  97 #define SWM_XRR_HAS_CRTC
  98 #endif
  99 #endif
 100
 101 /* #define SWM_DEBUG */
 102 #ifdef SWM_DEBUG
 103 #define DPRINTF(x...)           do { if (swm_debug) fprintf(stderr, x); } while (0)
 104 #define DNPRINTF(n,x...)        do { if (swm_debug & n) fprintf(stderr, x); } while (0)
 105 #define SWM_D_MISC              0x0001
 106 #define SWM_D_EVENT             0x0002
 107 #define SWM_D_WS                0x0004
 108 #define SWM_D_FOCUS             0x0008
 109 #define SWM_D_MOVE              0x0010
 110 #define SWM_D_STACK             0x0020
 111 #define SWM_D_MOUSE             0x0040
 112 #define SWM_D_PROP              0x0080
 113 #define SWM_D_CLASS             0x0100
 114 #define SWM_D_KEY               0x0200
 115 #define SWM_D_QUIRK             0x0400
 116 #define SWM_D_SPAWN             0x0800
 117 #define SWM_D_EVENTQ            0x1000
 118 #define SWM_D_CONF              0x2000
 119
 120 u_int32_t               swm_debug = 0
 121                             | SWM_D_MISC
 122                             | SWM_D_EVENT
 123                             | SWM_D_WS
 124                             | SWM_D_FOCUS
 125                             | SWM_D_MOVE
 126                             | SWM_D_STACK
 127                             | SWM_D_MOUSE
 128                             | SWM_D_PROP
 129                             | SWM_D_CLASS
 130                             | SWM_D_KEY
 131                             | SWM_D_QUIRK
 132                             | SWM_D_SPAWN
 133                             | SWM_D_EVENTQ
 134                             | SWM_D_CONF
 135                             ;
 136 #else
 137 #define DPRINTF(x...)
 138 #define DNPRINTF(n,x...)
 139 #endif
 140
 141 #define LENGTH(x)               (sizeof x / sizeof x[0])
 142 #define MODKEY                  Mod1Mask
 143 #define CLEANMASK(mask)         (mask & ~(numlockmask | LockMask))
 144 #define BUTTONMASK              (ButtonPressMask|ButtonReleaseMask)
 145 #define MOUSEMASK               (BUTTONMASK|PointerMotionMask)
 146 #define SWM_PROPLEN             (16)
 147 #define SWM_FUNCNAME_LEN        (32)
 148 #define SWM_KEYS_LEN            (255)
 149 #define SWM_QUIRK_LEN           (64)
 150 #define X(r)                    (r)->g.x
 151 #define Y(r)                    (r)->g.y
 152 #define WIDTH(r)                (r)->g.w
 153 #define HEIGHT(r)               (r)->g.h
 154 #define SWM_MAX_FONT_STEPS      (3)
 155 #define WINID(w)                (w ? w->id : 0)
 156
 157 #define SWM_FOCUS_DEFAULT       (0)
 158 #define SWM_FOCUS_SYNERGY       (1)
 159 #define SWM_FOCUS_FOLLOW        (2)
 160
 161 #ifndef SWM_LIB
 162 #define SWM_LIB                 "/usr/local/lib/libswmhack.so"
 163 #endif
 164
 165 char                    **start_argv;
 166 Atom                    astate;
 167 Atom                    aprot;
 168 Atom                    adelete;
 169 Atom                    takefocus;
 170 volatile sig_atomic_t   running = 1;
 171 int                     outputs = 0;
 172 int                     last_focus_event = FocusOut;
 173 int                     (*xerrorxlib)(Display *, XErrorEvent *);
 174 int                     other_wm;
 175 int                     ss_enabled = 0;
 176 int                     xrandr_support;
 177 int                     xrandr_eventbase;
 178 unsigned int            numlockmask = 0;
 179 Display                 *display;
 180
 181 int                     cycle_empty = 0;
 182 int                     cycle_visible = 0;
 183 int                     term_width = 0;
 184 int                     font_adjusted = 0;
 185 unsigned int            mod_key = MODKEY;
 186
 187 /* dialog windows */
 188 double                  dialog_ratio = .6;
 189 /* status bar */
 190 #define SWM_BAR_MAX     (256)
 191 char                    *bar_argv[] = { NULL, NULL };
 192 int                     bar_pipe[2];
 193 char                    bar_ext[SWM_BAR_MAX];
 194 char                    bar_vertext[SWM_BAR_MAX];
 195 int                     bar_version = 0;
 196 sig_atomic_t            bar_alarm = 0;
 197 int                     bar_delay = 30;
 198 int                     bar_enabled = 1;
 199 int                     bar_extra = 1;
 200 int                     bar_extra_running = 0;
 201 int                     bar_verbose = 1;
 202 int                     bar_height = 0;
 203 int                     stack_enabled = 1;
 204 int                     clock_enabled = 1;
 205 char                    *clock_format = NULL;
 206 int                     title_name_enabled = 0;
 207 int                     title_class_enabled = 0;
 208 int                     focus_mode = SWM_FOCUS_DEFAULT;
 209 pid_t                   bar_pid;
 210 GC                      bar_gc;
 211 XGCValues               bar_gcv;
 212 int                     bar_fidx = 0;
 213 XFontStruct             *bar_fs;
 214 char                    *bar_fonts[] = { NULL, NULL, NULL, NULL };/* XXX Make fully dynamic */
 215 char                    *spawn_term[] = { NULL, NULL };         /* XXX Make fully dynamic */
 216
 217 #define SWM_MENU_FN     (2)
 218 #define SWM_MENU_NB     (4)
 219 #define SWM_MENU_NF     (6)
 220 #define SWM_MENU_SB     (8)
 221 #define SWM_MENU_SF     (10)
 222
 223 /* layout manager data */
 224 struct swm_geometry {
 225         int                     x;
 226         int                     y;
 227         int                     w;
 228         int                     h;
 229 };
 230
 231 struct swm_screen;
 232 struct workspace;
 233
 234 /* virtual "screens" */
 235 struct swm_region {
 236         TAILQ_ENTRY(swm_region) entry;
 237         struct swm_geometry     g;
 238         struct workspace        *ws;    /* current workspace on this region */
 239         struct workspace        *ws_prior; /* prior workspace on this region */
 240         struct swm_screen       *s;     /* screen idx */
 241         Window                  bar_window;
 242 };
 243 TAILQ_HEAD(swm_region_list, swm_region);
 244
 245 struct ws_win {
 246         TAILQ_ENTRY(ws_win)     entry;
 247         Window                  id;
 248         Window                  transient;
 249         struct ws_win           *child_trans;   /* transient child window */
 250         struct swm_geometry     g;
 251         int                     floating;
 252         int                     manual;
 253         int                     font_size_boundary[SWM_MAX_FONT_STEPS];
 254         int                     font_steps;
 255         int                     last_inc;
 256         int                     can_delete;
 257         int                     take_focus;
 258         int                     java;
 259         unsigned long           quirks;
 260         struct workspace        *ws;    /* always valid */
 261         struct swm_screen       *s;     /* always valid, never changes */
 262         XWindowAttributes       wa;
 263         XSizeHints              sh;
 264         XClassHint              ch;
 265 };
 266 TAILQ_HEAD(ws_win_list, ws_win);
 267
 268 /* layout handlers */
 269 void    stack(void);
 270 void    vertical_config(struct workspace *, int);
 271 void    vertical_stack(struct workspace *, struct swm_geometry *);
 272 void    horizontal_config(struct workspace *, int);
 273 void    horizontal_stack(struct workspace *, struct swm_geometry *);
 274 void    max_stack(struct workspace *, struct swm_geometry *);
 275
 276 struct ws_win *find_window(Window);
 277
 278 void    grabbuttons(struct ws_win *, int);
 279 void    new_region(struct swm_screen *, int, int, int, int);
 280 void    unmanage_window(struct ws_win *);
 281 long    getstate(Window);
 282
 283 struct layout {
 284         void            (*l_stack)(struct workspace *, struct swm_geometry *);
 285         void            (*l_config)(struct workspace *, int);
 286         u_int32_t       flags;
 287 #define SWM_L_FOCUSPREV         (1<<0)
 288 #define SWM_L_MAPONFOCUS        (1<<1)
 289         char            *name;
 290 } layouts[] =  {
 291         /* stack,               configure */
 292         { vertical_stack,       vertical_config,        0,      "[|]" },
 293         { horizontal_stack,     horizontal_config,      0,      "[-]" },
 294         { max_stack,            NULL,
 295           SWM_L_MAPONFOCUS | SWM_L_FOCUSPREV,                   "[ ]"},
 296         { NULL,                 NULL,                   0,      NULL },
 297 };
 298
 299 #define SWM_H_SLICE             (32)
 300 #define SWM_V_SLICE             (32)
 301
 302 /* define work spaces */
 303 struct workspace {
 304         int                     idx;            /* workspace index */
 305         struct layout           *cur_layout;    /* current layout handlers */
 306         struct ws_win           *focus;         /* may be NULL */
 307         struct ws_win           *focus_prev;    /* may be NULL */
 308         struct swm_region       *r;             /* may be NULL */
 309         struct swm_region       *old_r;         /* may be NULL */
 310         struct ws_win_list      winlist;        /* list of windows in ws */
 311         struct ws_win_list      unmanagedlist;  /* list of dead windows in ws */
 312
 313         /* stacker state */
 314         struct {
 315                                 int horizontal_msize;
 316                                 int horizontal_mwin;
 317                                 int horizontal_stacks;
 318                                 int vertical_msize;
 319                                 int vertical_mwin;
 320                                 int vertical_stacks;
 321         } l_state;
 322 };
 323
 324 enum    { SWM_S_COLOR_BAR, SWM_S_COLOR_BAR_BORDER, SWM_S_COLOR_BAR_FONT,
 325           SWM_S_COLOR_FOCUS, SWM_S_COLOR_UNFOCUS, SWM_S_COLOR_MAX };
 326
 327 /* physical screen mapping */
 328 #define SWM_WS_MAX              (10)
 329 struct swm_screen {
 330         int                     idx;    /* screen index */
 331         struct swm_region_list  rl;     /* list of regions on this screen */
 332         struct swm_region_list  orl;    /* list of old regions */
 333         Window                  root;
 334         struct workspace        ws[SWM_WS_MAX];
 335
 336         /* colors */
 337         struct {
 338                 unsigned long   color;
 339                 char            *name;
 340         } c[SWM_S_COLOR_MAX];
 341 };
 342 struct swm_screen       *screens;
 343 int                     num_screens;
 344
 345 /* args to functions */
 346 union arg {
 347         int                     id;
 348 #define SWM_ARG_ID_FOCUSNEXT    (0)
 349 #define SWM_ARG_ID_FOCUSPREV    (1)
 350 #define SWM_ARG_ID_FOCUSMAIN    (2)
 351 #define SWM_ARG_ID_FOCUSCUR     (4)
 352 #define SWM_ARG_ID_SWAPNEXT     (10)
 353 #define SWM_ARG_ID_SWAPPREV     (11)
 354 #define SWM_ARG_ID_SWAPMAIN     (12)
 355 #define SWM_ARG_ID_MASTERSHRINK (20)
 356 #define SWM_ARG_ID_MASTERGROW   (21)
 357 #define SWM_ARG_ID_MASTERADD    (22)
 358 #define SWM_ARG_ID_MASTERDEL    (23)
 359 #define SWM_ARG_ID_STACKRESET   (30)
 360 #define SWM_ARG_ID_STACKINIT    (31)
 361 #define SWM_ARG_ID_CYCLEWS_UP   (40)
 362 #define SWM_ARG_ID_CYCLEWS_DOWN (41)
 363 #define SWM_ARG_ID_CYCLESC_UP   (42)
 364 #define SWM_ARG_ID_CYCLESC_DOWN (43)
 365 #define SWM_ARG_ID_STACKINC     (50)
 366 #define SWM_ARG_ID_STACKDEC     (51)
 367 #define SWM_ARG_ID_SS_ALL       (60)
 368 #define SWM_ARG_ID_SS_WINDOW    (61)
 369 #define SWM_ARG_ID_DONTCENTER   (70)
 370 #define SWM_ARG_ID_CENTER       (71)
 371 #define SWM_ARG_ID_KILLWINDOW   (80)
 372 #define SWM_ARG_ID_DELETEWINDOW (81)
 373         char                    **argv;
 374 };
 375
 376 void    focus(struct swm_region *, union arg *);
 377 void    focus_magic(struct ws_win *, int);
 378 #define SWM_F_GENERIC           (0)
 379 #define SWM_F_TRANSIENT         (1)
 380 /* quirks */
 381 struct quirk {
 382         char                    *class;
 383         char                    *name;
 384         unsigned long           quirk;
 385 #define SWM_Q_FLOAT             (1<<0)  /* float this window */
 386 #define SWM_Q_TRANSSZ           (1<<1)  /* transiend window size too small */
 387 #define SWM_Q_ANYWHERE          (1<<2)  /* don't position this window */
 388 #define SWM_Q_XTERM_FONTADJ     (1<<3)  /* adjust xterm fonts when resizing */
 389 #define SWM_Q_FULLSCREEN        (1<<4)  /* remove border */
 390 };
 391 int                             quirks_size = 0, quirks_length = 0;
 392 struct quirk                    *quirks = NULL;
 393
 394 /* events */
 395 #ifdef SWM_DEBUG
 396 void
 397 dumpevent(XEvent *e)
 398 {
 399         char                    *name = NULL;
 400
 401         switch (e->type) {
 402         case KeyPress:
 403                 name = "KeyPress";
 404                 break;
 405         case KeyRelease:
 406                 name = "KeyRelease";
 407                 break;
 408         case ButtonPress:
 409                 name = "ButtonPress";
 410                 break;
 411         case ButtonRelease:
 412                 name = "ButtonRelease";
 413                 break;
 414         case MotionNotify:
 415                 name = "MotionNotify";
 416                 break;
 417         case EnterNotify:
 418                 name = "EnterNotify";
 419                 break;
 420         case LeaveNotify:
 421                 name = "LeaveNotify";
 422                 break;
 423         case FocusIn:
 424                 name = "FocusIn";
 425                 break;
 426         case FocusOut:
 427                 name = "FocusOut";
 428                 break;
 429         case KeymapNotify:
 430                 name = "KeymapNotify";
 431                 break;
 432         case Expose:
 433                 name = "Expose";
 434                 break;
 435         case GraphicsExpose:
 436                 name = "GraphicsExpose";
 437                 break;
 438         case NoExpose:
 439                 name = "NoExpose";
 440                 break;
 441         case VisibilityNotify:
 442                 name = "VisibilityNotify";
 443                 break;
 444         case CreateNotify:
 445                 name = "CreateNotify";
 446                 break;
 447         case DestroyNotify:
 448                 name = "DestroyNotify";
 449                 break;
 450         case UnmapNotify:
 451                 name = "UnmapNotify";
 452                 break;
 453         case MapNotify:
 454                 name = "MapNotify";
 455                 break;
 456         case MapRequest:
 457                 name = "MapRequest";
 458                 break;
 459         case ReparentNotify:
 460                 name = "ReparentNotify";
 461                 break;
 462         case ConfigureNotify:
 463                 name = "ConfigureNotify";
 464                 break;
 465         case ConfigureRequest:
 466                 name = "ConfigureRequest";
 467                 break;
 468         case GravityNotify:
 469                 name = "GravityNotify";
 470                 break;
 471         case ResizeRequest:
 472                 name = "ResizeRequest";
 473                 break;
 474         case CirculateNotify:
 475                 name = "CirculateNotify";
 476                 break;
 477         case CirculateRequest:
 478                 name = "CirculateRequest";
 479                 break;
 480         case PropertyNotify:
 481                 name = "PropertyNotify";
 482                 break;
 483         case SelectionClear:
 484                 name = "SelectionClear";
 485                 break;
 486         case SelectionRequest:
 487                 name = "SelectionRequest";
 488                 break;
 489         case SelectionNotify:
 490                 name = "SelectionNotify";
 491                 break;
 492         case ColormapNotify:
 493                 name = "ColormapNotify";
 494                 break;
 495         case ClientMessage:
 496                 name = "ClientMessage";
 497                 break;
 498         case MappingNotify:
 499                 name = "MappingNotify";
 500                 break;
 501         }
 502
 503         if (name)
 504                 DNPRINTF(SWM_D_EVENTQ ,"window: %lu event: %s (%d), %d "
 505                     "remaining\n",
 506                     e->xany.window, name, e->type, QLength(display));
 507         else
 508                 DNPRINTF(SWM_D_EVENTQ, "window: %lu unknown event %d, %d "
 509                     "remaining\n",
 510                     e->xany.window, e->type, QLength(display));
 511 }
 512
 513 void
 514 dumpwins(struct swm_region *r, union arg *args)
 515 {
 516         struct ws_win           *win;
 517         unsigned int            state;
 518         XWindowAttributes       wa;
 519
 520         if (r->ws == NULL) {
 521                 fprintf(stderr, "invalid workspace\n");
 522                 return;
 523         }
 524
 525         fprintf(stderr, "=== managed window list ws %02d ===\n", r->ws->idx);
 526
 527         TAILQ_FOREACH(win, &r->ws->winlist, entry) {
 528                 state = getstate(win->id);
 529                 if (!XGetWindowAttributes(display, win->id, &wa))
 530                         fprintf(stderr, "window: %lu failed "
 531                             "XGetWindowAttributes\n", win->id);
 532                 fprintf(stderr, "window: %lu map_state: %d state: %d\n",
 533                     win->id, wa.map_state, state);
 534         }
 535
 536         fprintf(stderr, "===== unmanaged window list =====\n");
 537         TAILQ_FOREACH(win, &r->ws->unmanagedlist, entry) {
 538                 state = getstate(win->id);
 539                 if (!XGetWindowAttributes(display, win->id, &wa))
 540                         fprintf(stderr, "window: %lu failed "
 541                             "XGetWindowAttributes\n", win->id);
 542                 fprintf(stderr, "window: %lu map_state: %d state: %d\n",
 543                     win->id, wa.map_state, state);
 544         }
 545
 546         fprintf(stderr, "=================================\n");
 547 }
 548 #else
 549 #define dumpevent(e)
 550 void
 551 dumpwins(struct swm_region *r, union arg *args)
 552 {
 553 }
 554 #endif /* SWM_DEBUG */
 555
 556 void                    expose(XEvent *);
 557 void                    keypress(XEvent *);
 558 void                    buttonpress(XEvent *);
 559 void                    configurerequest(XEvent *);
 560 void                    configurenotify(XEvent *);
 561 void                    destroynotify(XEvent *);
 562 void                    enternotify(XEvent *);
 563 void                    focusevent(XEvent *);
 564 void                    mapnotify(XEvent *);
 565 void                    mappingnotify(XEvent *);
 566 void                    maprequest(XEvent *);
 567 void                    propertynotify(XEvent *);
 568 void                    unmapnotify(XEvent *);
 569 void                    visibilitynotify(XEvent *);
 570
 571 void                    (*handler[LASTEvent])(XEvent *) = {
 572                                 [Expose] = expose,
 573                                 [KeyPress] = keypress,
 574                                 [ButtonPress] = buttonpress,
 575                                 [ConfigureRequest] = configurerequest,
 576                                 [ConfigureNotify] = configurenotify,
 577                                 [DestroyNotify] = destroynotify,
 578                                 [EnterNotify] = enternotify,
 579                                 [FocusIn] = focusevent,
 580                                 [FocusOut] = focusevent,
 581                                 [MapNotify] = mapnotify,
 582                                 [MappingNotify] = mappingnotify,
 583                                 [MapRequest] = maprequest,
 584                                 [PropertyNotify] = propertynotify,
 585                                 [UnmapNotify] = unmapnotify,
 586                                 [VisibilityNotify] = visibilitynotify,
 587 };
 588
 589 void
 590 sighdlr(int sig)
 591 {
 592         pid_t                   pid;
 593
 594         switch (sig) {
 595         case SIGCHLD:
 596                 while ((pid = waitpid(WAIT_ANY, NULL, WNOHANG)) != -1) {
 597                         DNPRINTF(SWM_D_MISC, "reaping: %d\n", pid);
 598                         if (pid <= 0)
 599                                 break;
 600                 }
 601                 break;
 602         case SIGINT:
 603         case SIGTERM:
 604         case SIGHUP:
 605         case SIGQUIT:
 606                 running = 0;
 607                 break;
 608         }
 609 }
 610
 611 void
 612 installsignal(int sig, char *name)
 613 {
 614         struct sigaction        sa;
 615
 616         sa.sa_handler = sighdlr;
 617         sigemptyset(&sa.sa_mask);
 618         sa.sa_flags = 0;
 619         if (sigaction(sig, &sa, NULL) == -1)
 620                 err(1, "could not install %s handler", name);
 621 }
 622
 623 unsigned long
 624 name_to_color(char *colorname)
 625 {
 626         Colormap                cmap;
 627         Status                  status;
 628         XColor                  screen_def, exact_def;
 629         unsigned long           result = 0;
 630         char                    cname[32] = "#";
 631
 632         cmap = DefaultColormap(display, screens[0].idx);
 633         status = XAllocNamedColor(display, cmap, colorname,
 634             &screen_def, &exact_def);
 635         if (!status) {
 636                 strlcat(cname, colorname + 2, sizeof cname - 1);
 637                 status = XAllocNamedColor(display, cmap, cname, &screen_def,
 638                     &exact_def);
 639         }
 640         if (status)
 641                 result = screen_def.pixel;
 642         else
 643                 fprintf(stderr, "color '%s' not found.\n", colorname);
 644
 645         return (result);
 646 }
 647
 648 void
 649 setscreencolor(char *val, int i, int c)
 650 {
 651         if (i > 0 && i <= ScreenCount(display)) {
 652                 screens[i - 1].c[c].color = name_to_color(val);
 653                 free(screens[i - 1].c[c].name);
 654                 if ((screens[i - 1].c[c].name = strdup(val)) == NULL)
 655                         errx(1, "strdup");
 656         } else if (i == -1) {
 657                 for (i = 0; i < ScreenCount(display); i++) {
 658                         screens[i].c[c].color = name_to_color(val);
 659                         free(screens[i].c[c].name);
 660                         if ((screens[i].c[c].name = strdup(val)) == NULL)
 661                                 errx(1, "strdup");
 662                 }
 663         } else
 664                 errx(1, "invalid screen index: %d out of bounds (maximum %d)\n",
 665                     i, ScreenCount(display));
 666 }
 667
 668 void
 669 custom_region(char *val)
 670 {
 671         unsigned int                    sidx, x, y, w, h;
 672
 673         if (sscanf(val, "screen[%u]:%ux%u+%u+%u", &sidx, &w, &h, &x, &y) != 5)
 674                 errx(1, "invalid custom region, "
 675                     "should be 'screen[<n>]:<n>x<n>+<n>+<n>\n");
 676         if (sidx < 1 || sidx > ScreenCount(display))
 677                 errx(1, "invalid screen index: %d out of bounds (maximum %d)\n",
 678                     sidx, ScreenCount(display));
 679         sidx--;
 680
 681         if (w < 1 || h < 1)
 682                 errx(1, "region %ux%u+%u+%u too small\n", w, h, x, y);
 683
 684         if (x  < 0 || x > DisplayWidth(display, sidx) ||
 685             y < 0 || y > DisplayHeight(display, sidx) ||
 686             w + x > DisplayWidth(display, sidx) ||
 687             h + y > DisplayHeight(display, sidx))
 688                 errx(1, "region %ux%u+%u+%u not within screen boundaries "
 689                     "(%ux%u)\n", w, h, x, y,
 690                     DisplayWidth(display, sidx), DisplayHeight(display, sidx));
 691
 692         new_region(&screens[sidx], x, y, w, h);
 693 }
 694
 695 void
 696 socket_setnonblock(int fd)
 697 {
 698         int                     flags;
 699
 700         if ((flags = fcntl(fd, F_GETFL, 0)) == -1)
 701                 err(1, "fcntl F_GETFL");
 702         flags |= O_NONBLOCK;
 703         if ((flags = fcntl(fd, F_SETFL, flags)) == -1)
 704                 err(1, "fcntl F_SETFL");
 705 }
 706
 707 void
 708 bar_print(struct swm_region *r, char *s)
 709 {
 710         XClearWindow(display, r->bar_window);
 711         XSetForeground(display, bar_gc, r->s->c[SWM_S_COLOR_BAR_FONT].color);
 712         XDrawString(display, r->bar_window, bar_gc, 4, bar_fs->ascent, s,
 713             strlen(s));
 714 }
 715
 716 void
 717 bar_extra_stop(void)
 718 {
 719         if (bar_pipe[0]) {
 720                 close(bar_pipe[0]);
 721                 bzero(bar_pipe, sizeof bar_pipe);
 722         }
 723         if (bar_pid) {
 724                 kill(bar_pid, SIGTERM);
 725                 bar_pid = 0;
 726         }
 727         strlcpy(bar_ext, "", sizeof bar_ext);
 728         bar_extra = 0;
 729 }
 730
 731 void
 732 bar_class_name(char *s, ssize_t sz, struct ws_win *cur_focus)
 733 {
 734         int                     do_class, do_name;
 735         Status                  status;
 736         XClassHint              *xch = NULL;
 737
 738         if ((title_name_enabled == 1 || title_class_enabled == 1) &&
 739             cur_focus != NULL) {
 740                 if ((xch = XAllocClassHint()) == NULL)
 741                         goto out;
 742                 status = XGetClassHint(display, cur_focus->id, xch);
 743                 if (status == BadWindow || status == BadAlloc)
 744                         goto out;
 745                 do_class = (title_class_enabled && xch->res_class != NULL);
 746                 do_name = (title_name_enabled && xch->res_name != NULL);
 747                 if (do_class)
 748                         strlcat(s, xch->res_class, sz);
 749                 if (do_class && do_name)
 750                         strlcat(s, ":", sz);
 751                 if (do_name)
 752                         strlcat(s, xch->res_name, sz);
 753                 strlcat(s, "    ", sz);
 754         }
 755 out:
 756         if (xch)
 757                 XFree(xch);
 758 }
 759
 760 void
 761 bar_update(void)
 762 {
 763         time_t                  tmt;
 764         struct tm               tm;
 765         struct swm_region       *r;
 766         int                     i, x;
 767         size_t                  len;
 768         char                    s[SWM_BAR_MAX];
 769         char                    loc[SWM_BAR_MAX];
 770         char                    *b;
 771         char                    *stack = "";
 772
 773         if (bar_enabled == 0)
 774                 return;
 775         if (bar_extra && bar_extra_running) {
 776                 /* ignore short reads; it'll correct itself */
 777                 while ((b = fgetln(stdin, &len)) != NULL)
 778                         if (b && b[len - 1] == '\n') {
 779                                 b[len - 1] = '\0';
 780                                 strlcpy(bar_ext, b, sizeof bar_ext);
 781                         }
 782                 if (b == NULL && errno != EAGAIN) {
 783                         fprintf(stderr, "bar_extra failed: errno: %d %s\n",
 784                             errno, strerror(errno));
 785                         bar_extra_stop();
 786                 }
 787         } else
 788                 strlcpy(bar_ext, "", sizeof bar_ext);
 789
 790         if (clock_enabled == 0)
 791                 strlcpy(s, "", sizeof s);
 792         else {
 793                 time(&tmt);
 794                 localtime_r(&tmt, &tm);
 795                 strftime(s, sizeof s, clock_format, &tm);
 796                 strlcat(s, "    ", sizeof s);
 797         }
 798
 799         for (i = 0; i < ScreenCount(display); i++) {
 800                 x = 1;
 801                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
 802                         if (r && r->ws)
 803                                 bar_class_name(s, sizeof s, r->ws->focus);
 804
 805                         if (stack_enabled)
 806                                 stack = r->ws->cur_layout->name;
 807
 808                         snprintf(loc, sizeof loc, "%d:%d %s   %s    %s    %s",
 809                             x++, r->ws->idx + 1, stack, s, bar_ext,
 810                             bar_vertext);
 811                         bar_print(r, loc);
 812                 }
 813         }
 814         alarm(bar_delay);
 815 }
 816
 817 void
 818 bar_signal(int sig)
 819 {
 820         bar_alarm = 1;
 821 }
 822
 823 void
 824 bar_toggle(struct swm_region *r, union arg *args)
 825 {
 826         struct swm_region       *tmpr;
 827         int                     i, sc = ScreenCount(display);
 828
 829         DNPRINTF(SWM_D_MISC, "bar_toggle\n");
 830
 831         if (bar_enabled)
 832                 for (i = 0; i < sc; i++)
 833                         TAILQ_FOREACH(tmpr, &screens[i].rl, entry)
 834                                 XUnmapWindow(display, tmpr->bar_window);
 835         else
 836                 for (i = 0; i < sc; i++)
 837                         TAILQ_FOREACH(tmpr, &screens[i].rl, entry)
 838                                 XMapRaised(display, tmpr->bar_window);
 839
 840         bar_enabled = !bar_enabled;
 841
 842         stack();
 843         /* must be after stack */
 844         bar_update();
 845 }
 846
 847 void
 848 bar_refresh(void)
 849 {
 850         XSetWindowAttributes    wa;
 851         struct swm_region       *r;
 852         int                     i;
 853
 854         /* do this here because the conf file is in memory */
 855         if (bar_extra && bar_extra_running == 0 && bar_argv[0]) {
 856                 /* launch external status app */
 857                 bar_extra_running = 1;
 858                 if (pipe(bar_pipe) == -1)
 859                         err(1, "pipe error");
 860                 socket_setnonblock(bar_pipe[0]);
 861                 socket_setnonblock(bar_pipe[1]); /* XXX hmmm, really? */
 862                 if (dup2(bar_pipe[0], 0) == -1)
 863                         errx(1, "dup2");
 864                 if (dup2(bar_pipe[1], 1) == -1)
 865                         errx(1, "dup2");
 866                 if (signal(SIGPIPE, SIG_IGN) == SIG_ERR)
 867                         err(1, "could not disable SIGPIPE");
 868                 switch (bar_pid = fork()) {
 869                 case -1:
 870                         err(1, "cannot fork");
 871                         break;
 872                 case 0: /* child */
 873                         close(bar_pipe[0]);
 874                         execvp(bar_argv[0], bar_argv);
 875                         err(1, "%s external app failed", bar_argv[0]);
 876                         break;
 877                 default: /* parent */
 878                         close(bar_pipe[1]);
 879                         break;
 880                 }
 881         }
 882
 883         bzero(&wa, sizeof wa);
 884         for (i = 0; i < ScreenCount(display); i++)
 885                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
 886                         wa.border_pixel =
 887                             screens[i].c[SWM_S_COLOR_BAR_BORDER].color;
 888                         wa.background_pixel =
 889                             screens[i].c[SWM_S_COLOR_BAR].color;
 890                         XChangeWindowAttributes(display, r->bar_window,
 891                             CWBackPixel | CWBorderPixel, &wa);
 892                 }
 893         bar_update();
 894 }
 895
 896 void
 897 bar_setup(struct swm_region *r)
 898 {
 899         int                     i;
 900
 901         for (i = 0; bar_fonts[i] != NULL; i++) {
 902                 bar_fs = XLoadQueryFont(display, bar_fonts[i]);
 903                 if (bar_fs) {
 904                         bar_fidx = i;
 905                         break;
 906                 }
 907         }
 908         if (bar_fonts[i] == NULL)
 909                         errx(1, "couldn't load font");
 910         bar_height = bar_fs->ascent + bar_fs->descent + 3;
 911
 912         r->bar_window = XCreateSimpleWindow(display,
 913             r->s->root, X(r), Y(r), WIDTH(r) - 2, bar_height - 2,
 914             1, r->s->c[SWM_S_COLOR_BAR_BORDER].color,
 915             r->s->c[SWM_S_COLOR_BAR].color);
 916         bar_gc = XCreateGC(display, r->bar_window, 0, &bar_gcv);
 917         XSetFont(display, bar_gc, bar_fs->fid);
 918         XSelectInput(display, r->bar_window, VisibilityChangeMask);
 919         if (bar_enabled)
 920                 XMapRaised(display, r->bar_window);
 921         DNPRINTF(SWM_D_MISC, "bar_setup: bar_window %lu\n", r->bar_window);
 922
 923         if (signal(SIGALRM, bar_signal) == SIG_ERR)
 924                 err(1, "could not install bar_signal");
 925         bar_refresh();
 926 }
 927
 928 void
 929 set_win_state(struct ws_win *win, long state)
 930 {
 931         long                    data[] = {state, None};
 932
 933         DNPRINTF(SWM_D_EVENT, "set_win_state: window: %lu\n", win->id);
 934
 935         if (win == NULL)
 936                 return;
 937
 938         XChangeProperty(display, win->id, astate, astate, 32, PropModeReplace,
 939             (unsigned char *)data, 2);
 940 }
 941
 942 long
 943 getstate(Window w)
 944 {
 945         int                     format, status;
 946         long                    result = -1;
 947         unsigned char           *p = NULL;
 948         unsigned long           n, extra;
 949         Atom                    real;
 950
 951         status = XGetWindowProperty(display, w, astate, 0L, 2L, False, astate,
 952             &real, &format, &n, &extra, (unsigned char **)&p);
 953         if (status != Success)
 954                 return (-1);
 955         if (n != 0)
 956                 result = *((long *)p);
 957         XFree(p);
 958         return (result);
 959 }
 960
 961 void
 962 version(struct swm_region *r, union arg *args)
 963 {
 964         bar_version = !bar_version;
 965         if (bar_version)
 966                 snprintf(bar_vertext, sizeof bar_vertext, "Version: %s CVS: %s",
 967                     SWM_VERSION, cvstag);
 968         else
 969                 strlcpy(bar_vertext, "", sizeof bar_vertext);
 970         bar_update();
 971 }
 972
 973 void
 974 client_msg(struct ws_win *win, Atom a)
 975 {
 976         XClientMessageEvent     cm;
 977
 978         if (win == NULL)
 979                 return;
 980
 981         bzero(&cm, sizeof cm);
 982         cm.type = ClientMessage;
 983         cm.window = win->id;
 984         cm.message_type = aprot;
 985         cm.format = 32;
 986         cm.data.l[0] = a;
 987         cm.data.l[1] = CurrentTime;
 988         XSendEvent(display, win->id, False, 0L, (XEvent *)&cm);
 989 }
 990
 991 void
 992 configreq_win(struct ws_win *win)
 993 {
 994         XConfigureRequestEvent  cr;
 995
 996         if (win == NULL)
 997                 return;
 998
 999         bzero(&cr, sizeof cr);
1000         cr.type = ConfigureRequest;
1001         cr.display = display;
1002         cr.parent = win->id;
1003         cr.window = win->id;
1004         cr.x = win->g.x;
1005         cr.y = win->g.y;
1006         cr.width = win->g.w;
1007         cr.height = win->g.h;
1008         cr.border_width = 1;
1009
1010         XSendEvent(display, win->id, False, StructureNotifyMask, (XEvent *)&cr);
1011 }
1012
1013 void
1014 config_win(struct ws_win *win)
1015 {
1016         XConfigureEvent         ce;
1017
1018         DNPRINTF(SWM_D_MISC, "config_win: win %lu x %d y %d w %d h %d\n",
1019             win->id, win->g.x, win->g.y, win->g.w, win->g.h);
1020
1021         if (win == NULL)
1022                 return;
1023
1024         ce.type = ConfigureNotify;
1025         ce.display = display;
1026         ce.event = win->id;
1027         ce.window = win->id;
1028         ce.x = win->g.x;
1029         ce.y = win->g.y;
1030         ce.width = win->g.w;
1031         ce.height = win->g.h;
1032         ce.border_width = 1; /* XXX store this! */
1033         ce.above = None;
1034         ce.override_redirect = False;
1035         XSendEvent(display, win->id, False, StructureNotifyMask, (XEvent *)&ce);
1036 }
1037
1038 int
1039 count_win(struct workspace *ws, int count_transient)
1040 {
1041         struct ws_win           *win;
1042         int                     count = 0;
1043
1044         TAILQ_FOREACH(win, &ws->winlist, entry) {
1045                 if (count_transient == 0 && win->floating)
1046                         continue;
1047                 if (count_transient == 0 && win->transient)
1048                         continue;
1049                 count++;
1050         }
1051         DNPRINTF(SWM_D_MISC, "count_win: %d\n", count);
1052
1053         return (count);
1054 }
1055
1056 void
1057 quit(struct swm_region *r, union arg *args)
1058 {
1059         DNPRINTF(SWM_D_MISC, "quit\n");
1060         running = 0;
1061 }
1062
1063 void
1064 unmap_window(struct ws_win *win)
1065 {
1066         if (win == NULL)
1067                 return;
1068
1069         /* don't unmap again */
1070         if (getstate(win->id) == IconicState)
1071                 return;
1072
1073         set_win_state(win, IconicState);
1074
1075         XUnmapWindow(display, win->id);
1076         if (win->ws->r)
1077                 XSetWindowBorder(display, win->id,
1078                     win->ws->r->s->c[SWM_S_COLOR_UNFOCUS].color);
1079 }
1080
1081 void
1082 unmap_all(void)
1083 {
1084         struct ws_win           *win;
1085         int                     i, j;
1086
1087         for (i = 0; i < ScreenCount(display); i++)
1088                 for (j = 0; j < SWM_WS_MAX; j++)
1089                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
1090                                 unmap_window(win);
1091 }
1092
1093 void
1094 fake_keypress(struct ws_win *win, int keysym, int modifiers)
1095 {
1096         XKeyEvent event;
1097
1098         if (win == NULL)
1099                 return;
1100
1101         event.display = display;        /* Ignored, but what the hell */
1102         event.window = win->id;
1103         event.root = win->s->root;
1104         event.subwindow = None;
1105         event.time = CurrentTime;
1106         event.x = win->g.x;
1107         event.y = win->g.y;
1108         event.x_root = 1;
1109         event.y_root = 1;
1110         event.same_screen = True;
1111         event.keycode = XKeysymToKeycode(display, keysym);
1112         event.state = modifiers;
1113
1114         event.type = KeyPress;
1115         XSendEvent(event.display, event.window, True,
1116             KeyPressMask, (XEvent *)&event);
1117
1118         event.type = KeyRelease;
1119         XSendEvent(event.display, event.window, True,
1120             KeyPressMask, (XEvent *)&event);
1121
1122 }
1123
1124 void
1125 restart(struct swm_region *r, union arg *args)
1126 {
1127         DNPRINTF(SWM_D_MISC, "restart: %s\n", start_argv[0]);
1128
1129         /* disable alarm because the following code may not be interrupted */
1130         alarm(0);
1131         if (signal(SIGALRM, SIG_IGN) == SIG_ERR)
1132                 errx(1, "can't disable alarm");
1133
1134         bar_extra_stop();
1135         bar_extra = 1;
1136         unmap_all();
1137         XCloseDisplay(display);
1138         execvp(start_argv[0], start_argv);
1139         fprintf(stderr, "execvp failed\n");
1140         perror(" failed");
1141         quit(NULL, NULL);
1142 }
1143
1144 struct swm_region *
1145 root_to_region(Window root)
1146 {
1147         struct swm_region       *r = NULL;
1148         Window                  rr, cr;
1149         int                     i, x, y, wx, wy;
1150         unsigned int            mask;
1151
1152         for (i = 0; i < ScreenCount(display); i++)
1153                 if (screens[i].root == root)
1154                         break;
1155
1156         if (XQueryPointer(display, screens[i].root,
1157             &rr, &cr, &x, &y, &wx, &wy, &mask) != False) {
1158                 /* choose a region based on pointer location */
1159                 TAILQ_FOREACH(r, &screens[i].rl, entry)
1160                         if (x >= X(r) && x <= X(r) + WIDTH(r) &&
1161                             y >= Y(r) && y <= Y(r) + HEIGHT(r))
1162                                 break;
1163         }
1164
1165         if (r == NULL)
1166                 r = TAILQ_FIRST(&screens[i].rl);
1167
1168         return (r);
1169 }
1170
1171 struct ws_win *
1172 find_unmanaged_window(Window id)
1173 {
1174         struct ws_win           *win;
1175         int                     i, j;
1176
1177         for (i = 0; i < ScreenCount(display); i++)
1178                 for (j = 0; j < SWM_WS_MAX; j++)
1179                         TAILQ_FOREACH(win, &screens[i].ws[j].unmanagedlist,
1180                             entry)
1181                                 if (id == win->id)
1182                                         return (win);
1183         return (NULL);
1184 }
1185
1186 struct ws_win *
1187 find_window(Window id)
1188 {
1189         struct ws_win           *win;
1190         Window                  wrr, wpr, *wcr = NULL;
1191         int                     i, j, nc;
1192
1193         for (i = 0; i < ScreenCount(display); i++)
1194                 for (j = 0; j < SWM_WS_MAX; j++)
1195                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
1196                                 if (id == win->id)
1197                                         return (win);
1198
1199         /* if we were looking for the parent return that window instead */
1200         if (XQueryTree(display, id, &wrr, &wpr, &wcr, &nc) == 0)
1201                 return (NULL);
1202         if (wcr)
1203                 XFree(wcr);
1204
1205         /* ignore not found and root */
1206         if (wpr == 0 || wrr == wpr)
1207                 return (NULL);
1208
1209         /* look for parent */
1210         for (i = 0; i < ScreenCount(display); i++)
1211                 for (j = 0; j < SWM_WS_MAX; j++)
1212                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
1213                                 if (wpr == win->id)
1214                                         return (win);
1215
1216         return (NULL);
1217 }
1218
1219 void
1220 spawn(struct swm_region *r, union arg *args)
1221 {
1222         char                    *ret;
1223         int                     si;
1224
1225         DNPRINTF(SWM_D_MISC, "spawn: %s\n", args->argv[0]);
1226         /*
1227          * The double-fork construct avoids zombie processes and keeps the code
1228          * clean from stupid signal handlers.
1229          */
1230         if (fork() == 0) {
1231                 if (fork() == 0) {
1232                         if (display)
1233                                 close(ConnectionNumber(display));
1234                         setenv("LD_PRELOAD", SWM_LIB, 1);
1235                         if (asprintf(&ret, "%d", r->ws->idx)) {
1236                                 setenv("_SWM_WS", ret, 1);
1237                                 free(ret);
1238                         }
1239                         if (asprintf(&ret, "%d", getpid())) {
1240                                 setenv("_SWM_PID", ret, 1);
1241                                 free(ret);
1242                         }
1243                         setsid();
1244                         /* kill stdin, mplayer, ssh-add etc. need that */
1245                         si = open("/dev/null", O_RDONLY, 0);
1246                         if (si == -1)
1247                                 err(1, "open /dev/null");
1248                         if (dup2(si, 0) == -1)
1249                                 err(1, "dup2 /dev/null");
1250                         execvp(args->argv[0], args->argv);
1251                         fprintf(stderr, "execvp failed\n");
1252                         perror(" failed");
1253                 }
1254                 exit(0);
1255         }
1256 }
1257
1258 void
1259 spawnterm(struct swm_region *r, union arg *args)
1260 {
1261         DNPRINTF(SWM_D_MISC, "spawnterm\n");
1262
1263         if (term_width)
1264                 setenv("_SWM_XTERM_FONTADJ", "", 1);
1265         spawn(r, args);
1266 }
1267
1268 void
1269 kill_refs(struct ws_win *win)
1270 {
1271         int                     i, x;
1272         struct swm_region       *r;
1273         struct workspace        *ws;
1274
1275         if (win == NULL)
1276                 return;
1277
1278         for (i = 0; i < ScreenCount(display); i++)
1279                 TAILQ_FOREACH(r, &screens[i].rl, entry)
1280                         for (x = 0; x < SWM_WS_MAX; x++) {
1281                                 ws = &r->s->ws[x];
1282                                 if (win == ws->focus)
1283                                         ws->focus = NULL;
1284                                 if (win == ws->focus_prev)
1285                                         ws->focus_prev = NULL;
1286                         }
1287 }
1288
1289 int
1290 validate_win(struct ws_win *testwin)
1291 {
1292         struct ws_win           *win;
1293         struct workspace        *ws;
1294         struct swm_region       *r;
1295         int                     i, x, foundit = 0;
1296
1297         if (testwin == NULL)
1298                 return(0);
1299
1300         for (i = 0, foundit = 0; i < ScreenCount(display); i++)
1301                 TAILQ_FOREACH(r, &screens[i].rl, entry)
1302                         for (x = 0; x < SWM_WS_MAX; x++) {
1303                                 ws = &r->s->ws[x];
1304                                 TAILQ_FOREACH(win, &ws->winlist, entry)
1305                                         if (win == testwin)
1306                                                 return (0);
1307                         }
1308         return (1);
1309 }
1310
1311 int
1312 validate_ws(struct workspace *testws)
1313 {
1314         struct swm_region       *r;
1315         struct workspace        *ws;
1316         int                     foundit, i, x;
1317
1318         /* validate all ws */
1319         for (i = 0, foundit = 0; i < ScreenCount(display); i++)
1320                 TAILQ_FOREACH(r, &screens[i].rl, entry)
1321                         for (x = 0; x < SWM_WS_MAX; x++) {
1322                                 ws = &r->s->ws[x];
1323                                 if (ws == testws)
1324                                         return (0);
1325                         }
1326         return (1);
1327 }
1328
1329 void
1330 unfocus_win(struct ws_win *win)
1331 {
1332         XEvent                  cne;
1333
1334         DNPRINTF(SWM_D_FOCUS, "unfocus_win: id: %lu\n", WINID(win));
1335
1336         if (win == NULL)
1337                 return;
1338         if (win->ws == NULL)
1339                 return;
1340
1341         if (validate_ws(win->ws))
1342                 abort();
1343
1344         if (win->ws->r == NULL)
1345                 return;
1346
1347         if (validate_win(win)) {
1348                 kill_refs(win);
1349                 return;
1350         }
1351
1352         if (win->ws->focus == win) {
1353                 win->ws->focus = NULL;
1354                 win->ws->focus_prev = win;
1355         }
1356
1357         if (validate_win(win->ws->focus)) {
1358                 kill_refs(win->ws->focus);
1359                 win->ws->focus = NULL;
1360         }
1361         if (validate_win(win->ws->focus_prev)) {
1362                 kill_refs(win->ws->focus_prev);
1363                 win->ws->focus_prev = NULL;
1364         }
1365
1366         /* drain all previous unfocus events */
1367         while (XCheckTypedEvent(display, FocusOut, &cne) == True)
1368                 ;
1369
1370         grabbuttons(win, 0);
1371         XSetWindowBorder(display, win->id,
1372             win->ws->r->s->c[SWM_S_COLOR_UNFOCUS].color);
1373
1374 }
1375
1376 void
1377 unfocus_all(void)
1378 {
1379         struct ws_win           *win;
1380         int                     i, j;
1381
1382         DNPRINTF(SWM_D_FOCUS, "unfocus_all\n");
1383
1384         for (i = 0; i < ScreenCount(display); i++)
1385                 for (j = 0; j < SWM_WS_MAX; j++)
1386                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
1387                                 unfocus_win(win);
1388 }
1389
1390 void
1391 focus_win(struct ws_win *win)
1392 {
1393         XEvent                  cne;
1394         Window                  cur_focus;
1395         int                     rr;
1396         struct ws_win           *cfw = NULL;
1397
1398
1399         DNPRINTF(SWM_D_FOCUS, "focus_win: id: %lu\n", win ? win->id : 0);
1400
1401         if (win == NULL)
1402                 return;
1403         if (win->ws == NULL)
1404                 return;
1405
1406         if (validate_ws(win->ws))
1407                 abort();
1408         if (validate_win(win)) {
1409                 kill_refs(win);
1410                 return;
1411         }
1412
1413         if (validate_win(win)) {
1414                 kill_refs(win);
1415                 return;
1416         }
1417
1418         XGetInputFocus(display, &cur_focus, &rr);
1419         if ((cfw = find_window(cur_focus)) != NULL)
1420                 unfocus_win(cfw);
1421
1422         win->ws->focus = win;
1423
1424         if (win->ws->r != NULL) {
1425                 /* drain all previous focus events */
1426                 while (XCheckTypedEvent(display, FocusIn, &cne) == True)
1427                         ;
1428
1429                 if (win->java == 0)
1430                         XSetInputFocus(display, win->id,
1431                             RevertToParent, CurrentTime);
1432                 grabbuttons(win, 1);
1433                 XSetWindowBorder(display, win->id,
1434                     win->ws->r->s->c[SWM_S_COLOR_FOCUS].color);
1435                 if (win->ws->cur_layout->flags & SWM_L_MAPONFOCUS)
1436                         XMapRaised(display, win->id);
1437         }
1438 }
1439
1440 void
1441 switchws(struct swm_region *r, union arg *args)
1442 {
1443         int                     wsid = args->id, unmap_old = 0;
1444         struct swm_region       *this_r, *other_r;
1445         struct ws_win           *win;
1446         struct workspace        *new_ws, *old_ws;
1447         union arg               a;
1448
1449         if (!(r && r->s))
1450                 return;
1451
1452         this_r = r;
1453         old_ws = this_r->ws;
1454         new_ws = &this_r->s->ws[wsid];
1455
1456         DNPRINTF(SWM_D_WS, "switchws screen[%d]:%dx%d+%d+%d: "
1457             "%d -> %d\n", r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r),
1458             old_ws->idx, wsid);
1459
1460         if (new_ws == NULL || old_ws == NULL)
1461                 return;
1462         if (new_ws == old_ws)
1463                 return;
1464
1465         other_r = new_ws->r;
1466         if (other_r == NULL) {
1467                 /* if the other workspace is hidden, switch windows */
1468                 if (old_ws->r != NULL)
1469                         old_ws->old_r = old_ws->r;
1470                 old_ws->r = NULL;
1471                 unmap_old = 1;
1472         } else {
1473                 other_r->ws_prior = new_ws;
1474                 other_r->ws = old_ws;
1475                 old_ws->r = other_r;
1476         }
1477         this_r->ws_prior = old_ws;
1478         this_r->ws = new_ws;
1479         new_ws->r = this_r;
1480
1481         stack();
1482         a.id = SWM_ARG_ID_FOCUSCUR;
1483         focus(new_ws->r, &a);
1484         bar_update();
1485
1486         /* unmap old windows */
1487         if (unmap_old)
1488                 TAILQ_FOREACH(win, &old_ws->winlist, entry)
1489                         unmap_window(win);
1490 }
1491
1492 void
1493 cyclews(struct swm_region *r, union arg *args)
1494 {
1495         union                   arg a;
1496         struct swm_screen       *s = r->s;
1497
1498         DNPRINTF(SWM_D_WS, "cyclews id %d "
1499             "in screen[%d]:%dx%d+%d+%d ws %d\n", args->id,
1500             r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
1501
1502         a.id = r->ws->idx;
1503         do {
1504                 switch (args->id) {
1505                 case SWM_ARG_ID_CYCLEWS_UP:
1506                         if (a.id < SWM_WS_MAX - 1)
1507                                 a.id++;
1508                         else
1509                                 a.id = 0;
1510                         break;
1511                 case SWM_ARG_ID_CYCLEWS_DOWN:
1512                         if (a.id > 0)
1513                                 a.id--;
1514                         else
1515                                 a.id = SWM_WS_MAX - 1;
1516                         break;
1517                 default:
1518                         return;
1519                 };
1520
1521                 if (cycle_empty == 0 && TAILQ_EMPTY(&s->ws[a.id].winlist))
1522                         continue;
1523                 if (cycle_visible == 0 && s->ws[a.id].r != NULL)
1524                         continue;
1525
1526                 switchws(r, &a);
1527         } while (a.id != r->ws->idx);
1528 }
1529
1530 void
1531 priorws(struct swm_region *r, union arg *args)
1532 {
1533         union arg               a;
1534         struct swm_screen       *s = r->s;
1535
1536         DNPRINTF(SWM_D_WS, "priorws id %d "
1537             "in screen[%d]:%dx%d+%d+%d ws %d\n", args->id,
1538             r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
1539
1540         if (r->ws_prior == NULL)
1541                 return;
1542
1543         a.id = r->ws_prior->idx;
1544         switchws(r, &a);
1545 }
1546
1547 void
1548 cyclescr(struct swm_region *r, union arg *args)
1549 {
1550         struct swm_region       *rr = NULL;
1551         union arg               a;
1552         int                     i, x, y;
1553
1554         /* do nothing if we don't have more than one screen */
1555         if (!(ScreenCount(display) > 1 || outputs > 1))
1556                 return;
1557
1558         i = r->s->idx;
1559         switch (args->id) {
1560         case SWM_ARG_ID_CYCLESC_UP:
1561                 rr = TAILQ_NEXT(r, entry);
1562                 if (rr == NULL)
1563                         rr = TAILQ_FIRST(&screens[i].rl);
1564                 break;
1565         case SWM_ARG_ID_CYCLESC_DOWN:
1566                 rr = TAILQ_PREV(r, swm_region_list, entry);
1567                 if (rr == NULL)
1568                         rr = TAILQ_LAST(&screens[i].rl, swm_region_list);
1569                 break;
1570         default:
1571                 return;
1572         };
1573         if (rr == NULL)
1574                 return;
1575
1576         /* move mouse to region */
1577         x = rr->g.x + 1;
1578         y = rr->g.y + 1 + bar_enabled ? bar_height : 0;
1579         XWarpPointer(display, None, rr->s[i].root, 0, 0, 0, 0, x, y);
1580
1581         a.id = SWM_ARG_ID_FOCUSCUR;
1582         focus(rr, &a);
1583
1584         if (rr->ws->focus) {
1585                 /* move to focus window */
1586                 x = rr->ws->focus->g.x + 1;
1587                 y = rr->ws->focus->g.y + 1;
1588                 XWarpPointer(display, None, rr->s[i].root, 0, 0, 0, 0, x, y);
1589         }
1590 }
1591
1592 void
1593 swapwin(struct swm_region *r, union arg *args)
1594 {
1595         struct ws_win           *target, *source;
1596         struct ws_win           *cur_focus;
1597         struct ws_win_list      *wl;
1598
1599
1600         DNPRINTF(SWM_D_WS, "swapwin id %d "
1601             "in screen %d region %dx%d+%d+%d ws %d\n", args->id,
1602             r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
1603
1604         cur_focus = r->ws->focus;
1605         if (cur_focus == NULL)
1606                 return;
1607
1608         source = cur_focus;
1609         wl = &source->ws->winlist;
1610
1611         switch (args->id) {
1612         case SWM_ARG_ID_SWAPPREV:
1613                 target = TAILQ_PREV(source, ws_win_list, entry);
1614                 TAILQ_REMOVE(wl, cur_focus, entry);
1615                 if (target == NULL)
1616                         TAILQ_INSERT_TAIL(wl, source, entry);
1617                 else
1618                         TAILQ_INSERT_BEFORE(target, source, entry);
1619                 break;
1620         case SWM_ARG_ID_SWAPNEXT:
1621                 target = TAILQ_NEXT(source, entry);
1622                 TAILQ_REMOVE(wl, source, entry);
1623                 if (target == NULL)
1624                         TAILQ_INSERT_HEAD(wl, source, entry);
1625                 else
1626                         TAILQ_INSERT_AFTER(wl, target, source, entry);
1627                 break;
1628         case SWM_ARG_ID_SWAPMAIN:
1629                 target = TAILQ_FIRST(wl);
1630                 if (target == source) {
1631                         if (source->ws->focus_prev != NULL &&
1632                             source->ws->focus_prev != target)
1633
1634                                 source = source->ws->focus_prev;
1635                         else
1636                                 return;
1637                 }
1638                 if (target == NULL || source == NULL)
1639                         return;
1640                 source->ws->focus_prev = target;
1641                 TAILQ_REMOVE(wl, target, entry);
1642                 TAILQ_INSERT_BEFORE(source, target, entry);
1643                 TAILQ_REMOVE(wl, source, entry);
1644                 TAILQ_INSERT_HEAD(wl, source, entry);
1645                 break;
1646         default:
1647                 DNPRINTF(SWM_D_MOVE, "invalid id: %d\n", args->id);
1648                 return;
1649         }
1650
1651         stack();
1652 }
1653
1654 void
1655 focus_prev(struct ws_win *win)
1656 {
1657         struct ws_win           *winfocus = NULL, *winlostfocus = NULL;
1658         struct ws_win           *cur_focus = NULL;
1659         struct ws_win_list      *wl = NULL;
1660         struct workspace        *ws = NULL;
1661
1662         DNPRINTF(SWM_D_FOCUS, "focus_prev: id %lu\n", WINID(win));
1663
1664         if (!(win && win->ws))
1665                 return;
1666
1667         ws = win->ws;
1668         wl = &ws->winlist;
1669         cur_focus = ws->focus;
1670         winlostfocus = cur_focus;
1671
1672         /* pickle, just focus on whatever */
1673         if (cur_focus == NULL) {
1674                 /* use prev_focus if valid */
1675                 if (ws->focus_prev && ws->focus_prev != cur_focus &&
1676                     find_window(WINID(ws->focus_prev)))
1677                         winfocus = ws->focus_prev;
1678                 if (winfocus == NULL)
1679                         winfocus = TAILQ_FIRST(wl);
1680                 goto done;
1681         }
1682
1683         /* if transient focus on parent */
1684         if (cur_focus->transient) {
1685                 winfocus = find_window(cur_focus->transient);
1686                 goto done;
1687         }
1688
1689         /* if in max_stack try harder */
1690         if (ws->cur_layout->flags & SWM_L_FOCUSPREV) {
1691                 if (cur_focus != ws->focus_prev)
1692                         winfocus = ws->focus_prev;
1693                 else if (cur_focus != ws->focus)
1694                         winfocus = ws->focus;
1695                 else
1696                         winfocus = TAILQ_PREV(win, ws_win_list, entry);
1697                 if (winfocus)
1698                         goto done;
1699         }
1700
1701         if (cur_focus == win)
1702                 winfocus = TAILQ_PREV(win, ws_win_list, entry);
1703         if (winfocus == NULL)
1704                 winfocus = TAILQ_LAST(wl, ws_win_list);
1705         if (winfocus == NULL || winfocus == win)
1706                 winfocus = TAILQ_NEXT(cur_focus, entry);
1707 done:
1708         if (winfocus == winlostfocus || winfocus == NULL)
1709                 return;
1710
1711         focus_magic(winfocus, SWM_F_GENERIC);
1712 }
1713
1714 void
1715 focus(struct swm_region *r, union arg *args)
1716 {
1717         struct ws_win           *winfocus = NULL, *winlostfocus = NULL;
1718         struct ws_win           *cur_focus = NULL;
1719         struct ws_win_list      *wl = NULL;
1720         struct workspace        *ws = NULL;
1721
1722         if (!(r && r->ws))
1723                 return;
1724
1725         DNPRINTF(SWM_D_FOCUS, "focus: id %d\n", args->id);
1726
1727         /* treat FOCUS_CUR special */
1728         if (args->id == SWM_ARG_ID_FOCUSCUR) {
1729                 if (r->ws->focus)
1730                         winfocus = r->ws->focus;
1731                 else if (r->ws->focus_prev)
1732                         winfocus = r->ws->focus_prev;
1733                 else
1734                         winfocus = TAILQ_FIRST(&r->ws->winlist);
1735
1736                 focus_magic(winfocus, SWM_F_GENERIC);
1737                 return;
1738         }
1739
1740         if ((cur_focus = r->ws->focus) == NULL)
1741                 return;
1742         ws = r->ws;
1743         wl = &ws->winlist;
1744
1745         winlostfocus = cur_focus;
1746
1747         switch (args->id) {
1748         case SWM_ARG_ID_FOCUSPREV:
1749                 winfocus = TAILQ_PREV(cur_focus, ws_win_list, entry);
1750                 if (winfocus == NULL)
1751                         winfocus = TAILQ_LAST(wl, ws_win_list);
1752                 break;
1753
1754         case SWM_ARG_ID_FOCUSNEXT:
1755                 winfocus = TAILQ_NEXT(cur_focus, entry);
1756                 if (winfocus == NULL)
1757                         winfocus = TAILQ_FIRST(wl);
1758                 break;
1759
1760         case SWM_ARG_ID_FOCUSMAIN:
1761                 winfocus = TAILQ_FIRST(wl);
1762                 if (winfocus == cur_focus)
1763                         winfocus = cur_focus->ws->focus_prev;
1764                 break;
1765
1766         default:
1767                 return;
1768         }
1769
1770         if (winfocus == winlostfocus || winfocus == NULL)
1771                 return;
1772
1773         focus_magic(winfocus, SWM_F_GENERIC);
1774 }
1775
1776 void
1777 cycle_layout(struct swm_region *r, union arg *args)
1778 {
1779         struct workspace        *ws = r->ws;
1780         struct ws_win           *winfocus;
1781         union arg               a;
1782
1783         DNPRINTF(SWM_D_EVENT, "cycle_layout: workspace: %d\n", ws->idx);
1784
1785         winfocus = ws->focus;
1786
1787         ws->cur_layout++;
1788         if (ws->cur_layout->l_stack == NULL)
1789                 ws->cur_layout = &layouts[0];
1790
1791         stack();
1792         a.id = SWM_ARG_ID_FOCUSCUR;
1793         focus(r, &a);
1794         bar_update();
1795 }
1796
1797 void
1798 stack_config(struct swm_region *r, union arg *args)
1799 {
1800         struct workspace        *ws = r->ws;
1801
1802         DNPRINTF(SWM_D_STACK, "stack_config for workspace %d (id %d\n",
1803             args->id, ws->idx);
1804
1805         if (ws->cur_layout->l_config != NULL)
1806                 ws->cur_layout->l_config(ws, args->id);
1807
1808         if (args->id != SWM_ARG_ID_STACKINIT);
1809                 stack();
1810 }
1811
1812 void
1813 stack(void) {
1814         struct swm_geometry     g;
1815         struct swm_region       *r;
1816         int                     i, j;
1817
1818         DNPRINTF(SWM_D_STACK, "stack\n");
1819
1820         for (i = 0; i < ScreenCount(display); i++) {
1821                 j = 0;
1822                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
1823                         DNPRINTF(SWM_D_STACK, "stacking workspace %d "
1824                             "(screen %d, region %d)\n", r->ws->idx, i, j++);
1825
1826                         /* start with screen geometry, adjust for bar */
1827                         g = r->g;
1828                         g.w -= 2;
1829                         g.h -= 2;
1830                         if (bar_enabled) {
1831                                 g.y += bar_height;
1832                                 g.h -= bar_height;
1833                         }
1834                         r->ws->cur_layout->l_stack(r->ws, &g);
1835                 }
1836         }
1837         if (font_adjusted)
1838                 font_adjusted--;
1839 }
1840
1841 void
1842 stack_floater(struct ws_win *win, struct swm_region *r)
1843 {
1844         unsigned int            mask;
1845         XWindowChanges          wc;
1846
1847         if (win == NULL)
1848                 return;
1849
1850         bzero(&wc, sizeof wc);
1851         mask = CWX | CWY | CWBorderWidth | CWWidth | CWHeight;
1852         if ((win->quirks & SWM_Q_FULLSCREEN) && (win->g.w >= WIDTH(r)) &&
1853             (win->g.h >= HEIGHT(r)))
1854                 wc.border_width = 0;
1855         else
1856                 wc.border_width = 1;
1857         if (win->transient && (win->quirks & SWM_Q_TRANSSZ)) {
1858                 win->g.w = (double)WIDTH(r) * dialog_ratio;
1859                 win->g.h = (double)HEIGHT(r) * dialog_ratio;
1860         }
1861         wc.width = win->g.w;
1862         wc.height = win->g.h;
1863         if (win->manual) {
1864                 wc.x = win->g.x;
1865                 wc.y = win->g.y;
1866         } else {
1867                 wc.x = (WIDTH(r) - win->g.w) / 2;
1868                 wc.y = (HEIGHT(r) - win->g.h) / 2;
1869         }
1870
1871         /* adjust for region */
1872         if (wc.x < r->g.x)
1873                 wc.x += r->g.x;
1874         if (wc.y < r->g.y)
1875                 wc.y += r->g.y;
1876
1877         win->g.x = wc.x;
1878         win->g.y = wc.y;
1879         win->g.w = wc.width;
1880         win->g.h = wc.height;
1881
1882         DNPRINTF(SWM_D_MISC, "stack_floater: win %lu x %d y %d w %d h %d\n",
1883             win->id, wc.x, wc.y, wc.width, wc.height);
1884
1885         XConfigureWindow(display, win->id, mask, &wc);
1886         configreq_win(win);
1887 }
1888
1889 /*
1890  * Send keystrokes to terminal to decrease/increase the font size as the
1891  * window size changes.
1892  */
1893 void
1894 adjust_font(struct ws_win *win)
1895 {
1896         if (!(win->quirks & SWM_Q_XTERM_FONTADJ) ||
1897             win->floating || win->transient)
1898                 return;
1899
1900         if (win->sh.width_inc && win->last_inc != win->sh.width_inc &&
1901             win->g.w / win->sh.width_inc < term_width &&
1902             win->font_steps < SWM_MAX_FONT_STEPS) {
1903                 win->font_size_boundary[win->font_steps] =
1904                     (win->sh.width_inc * term_width) + win->sh.base_width;
1905                 win->font_steps++;
1906                 font_adjusted++;
1907                 win->last_inc = win->sh.width_inc;
1908                 fake_keypress(win, XK_KP_Subtract, ShiftMask);
1909         } else if (win->font_steps && win->last_inc != win->sh.width_inc &&
1910             win->g.w > win->font_size_boundary[win->font_steps - 1]) {
1911                 win->font_steps--;
1912                 font_adjusted++;
1913                 win->last_inc = win->sh.width_inc;
1914                 fake_keypress(win, XK_KP_Add, ShiftMask);
1915         }
1916 }
1917
1918 #define SWAPXY(g)       do {                            \
1919         int tmp;                                        \
1920         tmp = (g)->y; (g)->y = (g)->x; (g)->x = tmp;    \
1921         tmp = (g)->h; (g)->h = (g)->w; (g)->w = tmp;    \
1922 } while (0)
1923 void
1924 stack_master(struct workspace *ws, struct swm_geometry *g, int rot, int flip)
1925 {
1926         XWindowChanges          wc;
1927         XWindowAttributes       wa;
1928         struct swm_geometry     win_g, r_g = *g;
1929         struct ws_win           *win;
1930         int                     i, j, s, stacks;
1931         int                     w_inc = 1, h_inc, w_base = 1, h_base;
1932         int                     hrh, extra = 0, h_slice, last_h = 0;
1933         int                     split, colno, winno, mwin, msize, mscale;
1934         int                     remain, missing, v_slice, reconfigure;
1935         unsigned int            mask;
1936
1937         DNPRINTF(SWM_D_STACK, "stack_master: workspace: %d\n rot=%s flip=%s",
1938             ws->idx, rot ? "yes" : "no", flip ? "yes" : "no");
1939
1940         winno = count_win(ws, 0);
1941         if (winno == 0 && count_win(ws, 1) == 0)
1942                 return;
1943
1944         TAILQ_FOREACH(win, &ws->winlist, entry)
1945                 if (win->transient == 0 && win->floating == 0)
1946                         break;
1947
1948         if (win == NULL)
1949                 goto notiles;
1950
1951         if (rot) {
1952                 w_inc = win->sh.width_inc;
1953                 w_base = win->sh.base_width;
1954                 mwin = ws->l_state.horizontal_mwin;
1955                 mscale = ws->l_state.horizontal_msize;
1956                 stacks = ws->l_state.horizontal_stacks;
1957                 SWAPXY(&r_g);
1958         } else {
1959                 w_inc = win->sh.height_inc;
1960                 w_base = win->sh.base_height;
1961                 mwin = ws->l_state.vertical_mwin;
1962                 mscale = ws->l_state.vertical_msize;
1963                 stacks = ws->l_state.vertical_stacks;
1964         }
1965         win_g = r_g;
1966
1967         if (stacks > winno - mwin)
1968                 stacks = winno - mwin;
1969         if (stacks < 1)
1970                 stacks = 1;
1971
1972         h_slice = r_g.h / SWM_H_SLICE;
1973         if (mwin && winno > mwin) {
1974                 v_slice = r_g.w / SWM_V_SLICE;
1975
1976                 split = mwin;
1977                 colno = split;
1978                 win_g.w = v_slice * mscale;
1979
1980                 if (w_inc > 1 && w_inc < v_slice) {
1981                         /* adjust for window's requested size increment */
1982                         remain = (win_g.w - w_base) % w_inc;
1983                         missing = w_inc - remain;
1984                         win_g.w -= remain;
1985                         extra += remain;
1986                 }
1987
1988                 msize = win_g.w;
1989                 if (flip)
1990                         win_g.x += r_g.w - msize;
1991         } else {
1992                 msize = -2;
1993                 colno = split = winno / stacks;
1994                 win_g.w = ((r_g.w - (stacks * 2) + 2) / stacks);
1995         }
1996         hrh = r_g.h / colno;
1997         extra = r_g.h - (colno * hrh);
1998         win_g.h = hrh - 2;
1999
2000         /*  stack all the tiled windows */
2001         i = j = 0, s = stacks;
2002         TAILQ_FOREACH(win, &ws->winlist, entry) {
2003                 if (win->transient != 0 || win->floating != 0)
2004                         continue;
2005
2006                 if (split && i == split) {
2007                         colno = (winno - mwin) / stacks;
2008                         if (s <= (winno - mwin) % stacks)
2009                                 colno++;
2010                         split = split + colno;
2011                         hrh = (r_g.h / colno);
2012                         extra = r_g.h - (colno * hrh);
2013                         if (flip)
2014                                 win_g.x = r_g.x;
2015                         else
2016                                 win_g.x += win_g.w + 2;
2017                         win_g.w = (r_g.w - msize - (stacks * 2)) / stacks;
2018                         if (s == 1)
2019                                 win_g.w += (r_g.w - msize - (stacks * 2)) %
2020                                     stacks;
2021                         s--;
2022                         j = 0;
2023                 }
2024                 win_g.h = hrh - 2;
2025                 if (rot) {
2026                         h_inc = win->sh.width_inc;
2027                         h_base = win->sh.base_width;
2028                 } else {
2029                         h_inc = win->sh.height_inc;
2030                         h_base = win->sh.base_height;
2031                 }
2032                 if (j == colno - 1) {
2033                         win_g.h = hrh + extra;
2034                 } else if (h_inc > 1 && h_inc < h_slice) {
2035                         /* adjust for window's requested size increment */
2036                         remain = (win_g.h - h_base) % h_inc;
2037                         missing = h_inc - remain;
2038
2039                         if (missing <= extra || j == 0) {
2040                                 extra -= missing;
2041                                 win_g.h += missing;
2042                         } else {
2043                                 win_g.h -= remain;
2044                                 extra += remain;
2045                         }
2046                 }
2047
2048                 if (j == 0)
2049                         win_g.y = r_g.y;
2050                 else
2051                         win_g.y += last_h + 2;
2052
2053                 bzero(&wc, sizeof wc);
2054                 wc.border_width = 1;
2055                 reconfigure = 0;
2056                 if (rot) {
2057                         if (win->g.x != win_g.y || win->g.y != win_g.x ||
2058                             win->g.w != win_g.h || win->g.h != win_g.w) {
2059                                 reconfigure = 1;
2060                                 win->g.x = wc.x = win_g.y;
2061                                 win->g.y = wc.y = win_g.x;
2062                                 win->g.w = wc.width = win_g.h;
2063                                 win->g.h = wc.height = win_g.w;
2064                         }
2065                 } else {
2066                         if (win->g.x != win_g.x || win->g.y != win_g.y ||
2067                             win->g.w != win_g.w || win->g.h != win_g.h) {
2068                                 reconfigure = 1;
2069                                 win->g.x = wc.x = win_g.x;
2070                                 win->g.y = wc.y = win_g.y;
2071                                 win->g.w = wc.width = win_g.w;
2072                                 win->g.h = wc.height = win_g.h;
2073                         }
2074                 }
2075                 if (reconfigure) {
2076                         adjust_font(win);
2077                         mask = CWX | CWY | CWWidth | CWHeight | CWBorderWidth;
2078                         XConfigureWindow(display, win->id, mask, &wc);
2079                         configreq_win(win);
2080                 }
2081
2082                 if (XGetWindowAttributes(display, win->id, &wa))
2083                         if (wa.map_state == IsUnmapped)
2084                                 XMapRaised(display, win->id);
2085
2086                 last_h = win_g.h;
2087                 i++;
2088                 j++;
2089         }
2090
2091  notiles:
2092         /* now, stack all the floaters and transients */
2093         TAILQ_FOREACH(win, &ws->winlist, entry) {
2094                 if (win->transient == 0 && win->floating == 0)
2095                         continue;
2096
2097                 stack_floater(win, ws->r);
2098                 XMapRaised(display, win->id);
2099         }
2100 }
2101
2102 void
2103 vertical_config(struct workspace *ws, int id)
2104 {
2105         DNPRINTF(SWM_D_STACK, "vertical_resize: workspace: %d\n", ws->idx);
2106
2107         switch (id) {
2108         case SWM_ARG_ID_STACKRESET:
2109         case SWM_ARG_ID_STACKINIT:
2110                 ws->l_state.vertical_msize = SWM_V_SLICE / 2;
2111                 ws->l_state.vertical_mwin = 1;
2112                 ws->l_state.vertical_stacks = 1;
2113                 break;
2114         case SWM_ARG_ID_MASTERSHRINK:
2115                 if (ws->l_state.vertical_msize > 1)
2116                         ws->l_state.vertical_msize--;
2117                 break;
2118         case SWM_ARG_ID_MASTERGROW:
2119                 if (ws->l_state.vertical_msize < SWM_V_SLICE - 1)
2120                         ws->l_state.vertical_msize++;
2121                 break;
2122         case SWM_ARG_ID_MASTERADD:
2123                 ws->l_state.vertical_mwin++;
2124                 break;
2125         case SWM_ARG_ID_MASTERDEL:
2126                 if (ws->l_state.vertical_mwin > 0)
2127                         ws->l_state.vertical_mwin--;
2128                 break;
2129         case SWM_ARG_ID_STACKINC:
2130                 ws->l_state.vertical_stacks++;
2131                 break;
2132         case SWM_ARG_ID_STACKDEC:
2133                 if (ws->l_state.vertical_stacks > 1)
2134                         ws->l_state.vertical_stacks--;
2135                 break;
2136         default:
2137                 return;
2138         }
2139 }
2140
2141 void
2142 vertical_stack(struct workspace *ws, struct swm_geometry *g)
2143 {
2144         DNPRINTF(SWM_D_STACK, "vertical_stack: workspace: %d\n", ws->idx);
2145
2146         stack_master(ws, g, 0, 0);
2147 }
2148
2149 void
2150 horizontal_config(struct workspace *ws, int id)
2151 {
2152         DNPRINTF(SWM_D_STACK, "horizontal_config: workspace: %d\n", ws->idx);
2153
2154         switch (id) {
2155         case SWM_ARG_ID_STACKRESET:
2156         case SWM_ARG_ID_STACKINIT:
2157                 ws->l_state.horizontal_mwin = 1;
2158                 ws->l_state.horizontal_msize = SWM_H_SLICE / 2;
2159                 ws->l_state.horizontal_stacks = 1;
2160                 break;
2161         case SWM_ARG_ID_MASTERSHRINK:
2162                 if (ws->l_state.horizontal_msize > 1)
2163                         ws->l_state.horizontal_msize--;
2164                 break;
2165         case SWM_ARG_ID_MASTERGROW:
2166                 if (ws->l_state.horizontal_msize < SWM_H_SLICE - 1)
2167                         ws->l_state.horizontal_msize++;
2168                 break;
2169         case SWM_ARG_ID_MASTERADD:
2170                 ws->l_state.horizontal_mwin++;
2171                 break;
2172         case SWM_ARG_ID_MASTERDEL:
2173                 if (ws->l_state.horizontal_mwin > 0)
2174                         ws->l_state.horizontal_mwin--;
2175                 break;
2176         case SWM_ARG_ID_STACKINC:
2177                 ws->l_state.horizontal_stacks++;
2178                 break;
2179         case SWM_ARG_ID_STACKDEC:
2180                 if (ws->l_state.horizontal_stacks > 1)
2181                         ws->l_state.horizontal_stacks--;
2182                 break;
2183         default:
2184                 return;
2185         }
2186 }
2187
2188 void
2189 horizontal_stack(struct workspace *ws, struct swm_geometry *g)
2190 {
2191         DNPRINTF(SWM_D_STACK, "vertical_stack: workspace: %d\n", ws->idx);
2192
2193         stack_master(ws, g, 1, 0);
2194 }
2195
2196 /* fullscreen view */
2197 void
2198 max_stack(struct workspace *ws, struct swm_geometry *g)
2199 {
2200         XWindowChanges          wc;
2201         struct swm_geometry     gg = *g;
2202         struct ws_win           *win, *wintrans = NULL, *parent = NULL;
2203         unsigned int            mask;
2204         int                     winno;
2205
2206         DNPRINTF(SWM_D_STACK, "max_stack: workspace: %d\n", ws->idx);
2207
2208         if (ws == NULL)
2209                 return;
2210
2211         winno = count_win(ws, 0);
2212         if (winno == 0 && count_win(ws, 1) == 0)
2213                 return;
2214
2215         TAILQ_FOREACH(win, &ws->winlist, entry) {
2216                 if (win->transient) {
2217                         wintrans = win;
2218                         parent = find_window(win->transient);
2219                         continue;
2220                 }
2221
2222                 /* only reconfigure if necessary */
2223                 if (win->g.x != gg.x || win->g.y != gg.y || win->g.w != gg.w ||
2224                     win->g.h != gg.h) {
2225                         bzero(&wc, sizeof wc);
2226                         wc.border_width = 1;
2227                         win->g.x = wc.x = gg.x;
2228                         win->g.y = wc.y = gg.y;
2229                         win->g.w = wc.width = gg.w;
2230                         win->g.h = wc.height = gg.h;
2231                         mask = CWX | CWY | CWWidth | CWHeight | CWBorderWidth;
2232                         XConfigureWindow(display, win->id, mask, &wc);
2233                         configreq_win(win);
2234                 }
2235                 /* unmap only if we don't have multi screen */
2236                 if (win != ws->focus)
2237                         if (!(ScreenCount(display) > 1 || outputs > 1))
2238                                 unmap_window(win);
2239         }
2240
2241         /* put the last transient on top */
2242         if (wintrans) {
2243                 if (parent)
2244                         XMapRaised(display, parent->id);
2245                 stack_floater(wintrans, ws->r);
2246                 focus_magic(wintrans, SWM_F_TRANSIENT);
2247         }
2248 }
2249
2250 void
2251 send_to_ws(struct swm_region *r, union arg *args)
2252 {
2253         int                     wsid = args->id;
2254         struct ws_win           *win = win;
2255         struct workspace        *ws, *nws;
2256         Atom                    ws_idx_atom = 0;
2257         unsigned char           ws_idx_str[SWM_PROPLEN];
2258         union arg               a;
2259
2260         if (r && r->ws)
2261                 win = r->ws->focus;
2262         else
2263                 return;
2264         if (win == NULL)
2265                 return;
2266         if (win->ws->idx == wsid)
2267                 return;
2268
2269         DNPRINTF(SWM_D_MOVE, "send_to_ws: win: %lu\n", win->id);
2270
2271         ws = win->ws;
2272         nws = &win->s->ws[wsid];
2273
2274         a.id = SWM_ARG_ID_FOCUSPREV;
2275         focus(r, &a);
2276         unmap_window(win);
2277         TAILQ_REMOVE(&ws->winlist, win, entry);
2278         TAILQ_INSERT_TAIL(&nws->winlist, win, entry);
2279         win->ws = nws;
2280
2281         /* Try to update the window's workspace property */
2282         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
2283         if (ws_idx_atom &&
2284             snprintf(ws_idx_str, SWM_PROPLEN, "%d", nws->idx) < SWM_PROPLEN) {
2285                 DNPRINTF(SWM_D_PROP, "setting property _SWM_WS to %s\n",
2286                     ws_idx_str);
2287                 XChangeProperty(display, win->id, ws_idx_atom, XA_STRING, 8,
2288                     PropModeReplace, ws_idx_str, SWM_PROPLEN);
2289         }
2290         stack();
2291 }
2292
2293 void
2294 wkill(struct swm_region *r, union arg *args)
2295 {
2296         DNPRINTF(SWM_D_MISC, "wkill %d\n", args->id);
2297
2298         if(r->ws->focus == NULL)
2299                 return;
2300
2301         if (args->id == SWM_ARG_ID_KILLWINDOW)
2302                 XKillClient(display, r->ws->focus->id);
2303         else
2304                 if (r->ws->focus->can_delete)
2305                         client_msg(r->ws->focus, adelete);
2306 }
2307
2308 void
2309 floating_toggle(struct swm_region *r, union arg *args)
2310 {
2311         struct ws_win   *win = r->ws->focus;
2312         union arg       a;
2313
2314         if (win == NULL)
2315                 return;
2316
2317         win->floating = !win->floating;
2318         win->manual = 0;
2319         stack();
2320         a.id = SWM_ARG_ID_FOCUSCUR;
2321         focus(win->ws->r, &a);
2322 }
2323
2324 void
2325 resize_window(struct ws_win *win, int center)
2326 {
2327         unsigned int            mask;
2328         XWindowChanges          wc;
2329         struct swm_region       *r;
2330
2331         r = root_to_region(win->wa.root);
2332         bzero(&wc, sizeof wc);
2333         mask = CWBorderWidth | CWWidth | CWHeight;
2334         wc.border_width = 1;
2335         wc.width = win->g.w;
2336         wc.height = win->g.h;
2337         if (center == SWM_ARG_ID_CENTER) {
2338                 wc.x = (WIDTH(r) - win->g.w) / 2;
2339                 wc.y = (HEIGHT(r) - win->g.h) / 2;
2340                 mask |= CWX | CWY;
2341         }
2342
2343         DNPRINTF(SWM_D_STACK, "resize_window: win %lu x %d y %d w %d h %d\n",
2344             win->id, wc.x, wc.y, wc.width, wc.height);
2345
2346         XConfigureWindow(display, win->id, mask, &wc);
2347         configreq_win(win);
2348 }
2349
2350 void
2351 resize(struct ws_win *win, union arg *args)
2352 {
2353         XEvent                  ev;
2354         Time                    time = 0;
2355         struct swm_region       *r = win->ws->r;
2356
2357         DNPRINTF(SWM_D_MOUSE, "resize: win %lu floating %d trans %lu\n",
2358             win->id, win->floating, win->transient);
2359
2360         if (!(win->transient != 0 || win->floating != 0))
2361                 return;
2362
2363         if (XGrabPointer(display, win->id, False, MOUSEMASK, GrabModeAsync,
2364             GrabModeAsync, None, None /* cursor */, CurrentTime) != GrabSuccess)
2365                 return;
2366         XWarpPointer(display, None, win->id, 0, 0, 0, 0, win->g.w, win->g.h);
2367         do {
2368                 XMaskEvent(display, MOUSEMASK | ExposureMask |
2369                     SubstructureRedirectMask, &ev);
2370                 switch(ev.type) {
2371                 case ConfigureRequest:
2372                 case Expose:
2373                 case MapRequest:
2374                         handler[ev.type](&ev);
2375                         break;
2376                 case MotionNotify:
2377                         /* do not allow resize outside of region */
2378                         if (ev.xmotion.y_root < r->g.y ||
2379                             ev.xmotion.y_root >= r->g.y + r->g.h - 1)
2380                                 continue;
2381                         if (ev.xmotion.x_root < r->g.x ||
2382                             ev.xmotion.x_root >= r->g.x + r->g.w - 1)
2383                                 continue;
2384
2385                         if (ev.xmotion.x <= 1)
2386                                 ev.xmotion.x = 1;
2387                         if (ev.xmotion.y <= 1)
2388                                 ev.xmotion.y = 1;
2389                         win->g.w = ev.xmotion.x;
2390                         win->g.h = ev.xmotion.y;
2391
2392                         /* not free, don't sync more than 60 times / second */
2393                         if ((ev.xmotion.time - time) > (1000 / 60) ) {
2394                                 time = ev.xmotion.time;
2395                                 XSync(display, False);
2396                                 resize_window(win, args->id);
2397                         }
2398                         break;
2399                 }
2400         } while (ev.type != ButtonRelease);
2401         if (time) {
2402                 XSync(display, False);
2403                 resize_window(win, args->id);
2404         }
2405         XWarpPointer(display, None, win->id, 0, 0, 0, 0, win->g.w - 1,
2406             win->g.h - 1);
2407         XUngrabPointer(display, CurrentTime);
2408
2409         /* drain events */
2410         while (XCheckMaskEvent(display, EnterWindowMask, &ev));
2411 }
2412
2413 void
2414 move_window(struct ws_win *win)
2415 {
2416         unsigned int            mask;
2417         XWindowChanges          wc;
2418         struct swm_region       *r;
2419
2420         r = root_to_region(win->wa.root);
2421         bzero(&wc, sizeof wc);
2422         mask = CWX | CWY;
2423         wc.x = win->g.x;
2424         wc.y = win->g.y;
2425
2426         DNPRINTF(SWM_D_STACK, "move_window: win %lu x %d y %d w %d h %d\n",
2427             win->id, wc.x, wc.y, wc.width, wc.height);
2428
2429         XConfigureWindow(display, win->id, mask, &wc);
2430         configreq_win(win);
2431 }
2432
2433 void
2434 move(struct ws_win *win, union arg *args)
2435 {
2436         XEvent                  ev;
2437         Time                    time = 0;
2438         int                     restack = 0;
2439         struct swm_region       *r = win->ws->r;
2440
2441         DNPRINTF(SWM_D_MOUSE, "move: win %lu floating %d trans %lu\n",
2442             win->id, win->floating, win->transient);
2443
2444         if (win->floating == 0) {
2445                 win->floating = 1;
2446                 win->manual = 1;
2447                 restack = 1;
2448         }
2449
2450         if (XGrabPointer(display, win->id, False, MOUSEMASK, GrabModeAsync,
2451             GrabModeAsync, None, None /* cursor */, CurrentTime) != GrabSuccess)
2452                 return;
2453         XWarpPointer(display, None, win->id, 0, 0, 0, 0, 0, 0);
2454         do {
2455                 XMaskEvent(display, MOUSEMASK | ExposureMask |
2456                     SubstructureRedirectMask, &ev);
2457                 switch(ev.type) {
2458                 case ConfigureRequest:
2459                 case Expose:
2460                 case MapRequest:
2461                         handler[ev.type](&ev);
2462                         break;
2463                 case MotionNotify:
2464                         /* don't allow to move window out of region */
2465                         if (ev.xmotion.y_root < r->g.y ||
2466                             ev.xmotion.y_root + win->g.h >= r->g.y + r->g.h - 1)
2467                                 continue;
2468                         if (ev.xmotion.x_root < r->g.x ||
2469                             ev.xmotion.x_root + win->g.w >= r->g.x + r->g.w - 1)
2470                                 continue;
2471
2472                         win->g.x = ev.xmotion.x_root;
2473                         win->g.y = ev.xmotion.y_root;
2474
2475                         /* not free, don't sync more than 60 times / second */
2476                         if ((ev.xmotion.time - time) > (1000 / 60) ) {
2477                                 time = ev.xmotion.time;
2478                                 XSync(display, False);
2479                                 move_window(win);
2480                         }
2481                         break;
2482                 }
2483         } while (ev.type != ButtonRelease);
2484         if (time) {
2485                 XSync(display, False);
2486                 move_window(win);
2487         }
2488         XWarpPointer(display, None, win->id, 0, 0, 0, 0, 0, 0);
2489         XUngrabPointer(display, CurrentTime);
2490         if (restack)
2491                 stack();
2492
2493         /* drain events */
2494         while (XCheckMaskEvent(display, EnterWindowMask, &ev));
2495 }
2496
2497 /* user/key callable function IDs */
2498 enum keyfuncid {
2499         kf_cycle_layout,
2500         kf_stack_reset,
2501         kf_master_shrink,
2502         kf_master_grow,
2503         kf_master_add,
2504         kf_master_del,
2505         kf_stack_inc,
2506         kf_stack_dec,
2507         kf_swap_main,
2508         kf_focus_next,
2509         kf_focus_prev,
2510         kf_swap_next,
2511         kf_swap_prev,
2512         kf_spawn_term,
2513         kf_spawn_menu,
2514         kf_quit,
2515         kf_restart,
2516         kf_focus_main,
2517         kf_ws_1,
2518         kf_ws_2,
2519         kf_ws_3,
2520         kf_ws_4,
2521         kf_ws_5,
2522         kf_ws_6,
2523         kf_ws_7,
2524         kf_ws_8,
2525         kf_ws_9,
2526         kf_ws_10,
2527         kf_ws_next,
2528         kf_ws_prev,
2529         kf_ws_prior,
2530         kf_screen_next,
2531         kf_screen_prev,
2532         kf_mvws_1,
2533         kf_mvws_2,
2534         kf_mvws_3,
2535         kf_mvws_4,
2536         kf_mvws_5,
2537         kf_mvws_6,
2538         kf_mvws_7,
2539         kf_mvws_8,
2540         kf_mvws_9,
2541         kf_mvws_10,
2542         kf_bar_toggle,
2543         kf_wind_kill,
2544         kf_wind_del,
2545         kf_screenshot_all,
2546         kf_screenshot_wind,
2547         kf_float_toggle,
2548         kf_version,
2549         kf_spawn_lock,
2550         kf_spawn_initscr,
2551         kf_spawn_custom,
2552         kf_dumpwins,
2553         kf_invalid
2554 };
2555
2556 /* key definitions */
2557 void
2558 dummykeyfunc(struct swm_region *r, union arg *args)
2559 {
2560 };
2561
2562 void
2563 legacyfunc(struct swm_region *r, union arg *args)
2564 {
2565 };
2566
2567 struct keyfunc {
2568         char                    name[SWM_FUNCNAME_LEN];
2569         void                    (*func)(struct swm_region *r, union arg *);
2570         union arg               args;
2571 } keyfuncs[kf_invalid + 1] = {
2572         /* name                 function        argument */
2573         { "cycle_layout",       cycle_layout,   {0} },
2574         { "stack_reset",        stack_config,   {.id = SWM_ARG_ID_STACKRESET} },
2575         { "master_shrink",      stack_config,   {.id = SWM_ARG_ID_MASTERSHRINK} },
2576         { "master_grow",        stack_config,   {.id = SWM_ARG_ID_MASTERGROW} },
2577         { "master_add",         stack_config,   {.id = SWM_ARG_ID_MASTERADD} },
2578         { "master_del",         stack_config,   {.id = SWM_ARG_ID_MASTERDEL} },
2579         { "stack_inc",          stack_config,   {.id = SWM_ARG_ID_STACKINC} },
2580         { "stack_dec",          stack_config,   {.id = SWM_ARG_ID_STACKDEC} },
2581         { "swap_main",          swapwin,        {.id = SWM_ARG_ID_SWAPMAIN} },
2582         { "focus_next",         focus,          {.id = SWM_ARG_ID_FOCUSNEXT} },
2583         { "focus_prev",         focus,          {.id = SWM_ARG_ID_FOCUSPREV} },
2584         { "swap_next",          swapwin,        {.id = SWM_ARG_ID_SWAPNEXT} },
2585         { "swap_prev",          swapwin,        {.id = SWM_ARG_ID_SWAPPREV} },
2586         { "spawn_term",         spawnterm,      {.argv = spawn_term} },
2587         { "spawn_menu",         legacyfunc,     {0} },
2588         { "quit",               quit,           {0} },
2589         { "restart",            restart,        {0} },
2590         { "focus_main",         focus,          {.id = SWM_ARG_ID_FOCUSMAIN} },
2591         { "ws_1",               switchws,       {.id = 0} },
2592         { "ws_2",               switchws,       {.id = 1} },
2593         { "ws_3",               switchws,       {.id = 2} },
2594         { "ws_4",               switchws,       {.id = 3} },
2595         { "ws_5",               switchws,       {.id = 4} },
2596         { "ws_6",               switchws,       {.id = 5} },
2597         { "ws_7",               switchws,       {.id = 6} },
2598         { "ws_8",               switchws,       {.id = 7} },
2599         { "ws_9",               switchws,       {.id = 8} },
2600         { "ws_10",              switchws,       {.id = 9} },
2601         { "ws_next",            cyclews,        {.id = SWM_ARG_ID_CYCLEWS_UP} },
2602         { "ws_prev",            cyclews,        {.id = SWM_ARG_ID_CYCLEWS_DOWN} },
2603         { "ws_prior",           priorws,        {0} },
2604         { "screen_next",        cyclescr,       {.id = SWM_ARG_ID_CYCLESC_UP} },
2605         { "screen_prev",        cyclescr,       {.id = SWM_ARG_ID_CYCLESC_DOWN} },
2606         { "mvws_1",             send_to_ws,     {.id = 0} },
2607         { "mvws_2",             send_to_ws,     {.id = 1} },
2608         { "mvws_3",             send_to_ws,     {.id = 2} },
2609         { "mvws_4",             send_to_ws,     {.id = 3} },
2610         { "mvws_5",             send_to_ws,     {.id = 4} },
2611         { "mvws_6",             send_to_ws,     {.id = 5} },
2612         { "mvws_7",             send_to_ws,     {.id = 6} },
2613         { "mvws_8",             send_to_ws,     {.id = 7} },
2614         { "mvws_9",             send_to_ws,     {.id = 8} },
2615         { "mvws_10",            send_to_ws,     {.id = 9} },
2616         { "bar_toggle",         bar_toggle,     {0} },
2617         { "wind_kill",          wkill,          {.id = SWM_ARG_ID_KILLWINDOW} },
2618         { "wind_del",           wkill,          {.id = SWM_ARG_ID_DELETEWINDOW} },
2619         { "screenshot_all",     legacyfunc,     {0} },
2620         { "screenshot_wind",    legacyfunc,     {0} },
2621         { "float_toggle",       floating_toggle,{0} },
2622         { "version",            version,        {0} },
2623         { "spawn_lock",         legacyfunc,     {0} },
2624         { "spawn_initscr",      legacyfunc,     {0} },
2625         { "spawn_custom",       dummykeyfunc,   {0} },
2626         { "dumpwins",           dumpwins,       {0} },
2627         { "invalid key func",   NULL,           {0} },
2628 };
2629 struct key {
2630         unsigned int            mod;
2631         KeySym                  keysym;
2632         enum keyfuncid          funcid;
2633         char                    *spawn_name;
2634 };
2635 int                             keys_size = 0, keys_length = 0;
2636 struct key                      *keys = NULL;
2637
2638 /* mouse */
2639 enum { client_click, root_click };
2640 struct button {
2641         unsigned int            action;
2642         unsigned int            mask;
2643         unsigned int            button;
2644         void                    (*func)(struct ws_win *, union arg *);
2645         union arg               args;
2646 } buttons[] = {
2647           /* action     key             mouse button    func    args */
2648         { client_click, MODKEY,         Button3,        resize, {.id = SWM_ARG_ID_DONTCENTER} },
2649         { client_click, MODKEY | ShiftMask, Button3,    resize, {.id = SWM_ARG_ID_CENTER} },
2650         { client_click, MODKEY,         Button1,        move,   {0} },
2651 };
2652
2653 void
2654 update_modkey(unsigned int mod)
2655 {
2656         int                     i;
2657
2658         mod_key = mod;
2659         for (i = 0; i < keys_length; i++)
2660                 if (keys[i].mod & ShiftMask)
2661                         keys[i].mod = mod | ShiftMask;
2662                 else
2663                         keys[i].mod = mod;
2664
2665         for (i = 0; i < LENGTH(buttons); i++)
2666                 if (buttons[i].mask & ShiftMask)
2667                         buttons[i].mask = mod | ShiftMask;
2668                 else
2669                         buttons[i].mask = mod;
2670 }
2671
2672 /* spawn */
2673 struct spawn_prog {
2674         char                    *name;
2675         int                     argc;
2676         char                    **argv;
2677 };
2678
2679 int                             spawns_size = 0, spawns_length = 0;
2680 struct spawn_prog               *spawns = NULL;
2681
2682 void
2683 spawn_custom(struct swm_region *r, union arg *args, char *spawn_name)
2684 {
2685         union arg               a;
2686         struct spawn_prog       *prog = NULL;
2687         int                     i;
2688         char                    *ap, **real_args;
2689
2690         DNPRINTF(SWM_D_SPAWN, "spawn_custom %s\n", spawn_name);
2691
2692         /* find program */
2693         for (i = 0; i < spawns_length; i++) {
2694                 if (!strcasecmp(spawn_name, spawns[i].name))
2695                         prog = &spawns[i];
2696         }
2697         if (prog == NULL) {
2698                 fprintf(stderr, "spawn_custom: program %s not found\n",
2699                     spawn_name);
2700                 return;
2701         }
2702
2703         /* make room for expanded args */
2704         if ((real_args = calloc(prog->argc + 1, sizeof(char *))) == NULL)
2705                 err(1, "spawn_custom: calloc real_args");
2706
2707         /* expand spawn_args into real_args */
2708         for (i = 0; i < prog->argc; i++) {
2709                 ap = prog->argv[i];
2710                 DNPRINTF(SWM_D_SPAWN, "spawn_custom: raw arg = %s\n", ap);
2711                 if (!strcasecmp(ap, "$bar_border")) {
2712                         if ((real_args[i] =
2713                             strdup(r->s->c[SWM_S_COLOR_BAR_BORDER].name))
2714                             == NULL)
2715                                 err(1,  "spawn_custom border color");
2716                 } else if (!strcasecmp(ap, "$bar_color")) {
2717                         if ((real_args[i] =
2718                             strdup(r->s->c[SWM_S_COLOR_BAR].name))
2719                             == NULL)
2720                                 err(1, "spawn_custom bar color");
2721                 } else if (!strcasecmp(ap, "$bar_font")) {
2722                         if ((real_args[i] = strdup(bar_fonts[bar_fidx]))
2723                             == NULL)
2724                                 err(1, "spawn_custom bar fonts");
2725                 } else if (!strcasecmp(ap, "$bar_font_color")) {
2726                         if ((real_args[i] =
2727                             strdup(r->s->c[SWM_S_COLOR_BAR_FONT].name))
2728                             == NULL)
2729                                 err(1, "spawn_custom color font");
2730                 } else if (!strcasecmp(ap, "$color_focus")) {
2731                         if ((real_args[i] =
2732                             strdup(r->s->c[SWM_S_COLOR_FOCUS].name))
2733                             == NULL)
2734                                 err(1, "spawn_custom color focus");
2735                 } else if (!strcasecmp(ap, "$color_unfocus")) {
2736                         if ((real_args[i] =
2737                             strdup(r->s->c[SWM_S_COLOR_UNFOCUS].name))
2738                             == NULL)
2739                                 err(1, "spawn_custom color unfocus");
2740                 } else {
2741                         /* no match --> copy as is */
2742                         if ((real_args[i] = strdup(ap)) == NULL)
2743                                 err(1, "spawn_custom strdup(ap)");
2744                 }
2745                 DNPRINTF(SWM_D_SPAWN, "spawn_custom: cooked arg = %s\n",
2746                     real_args[i]);
2747         }
2748
2749 #ifdef SWM_DEBUG
2750         if ((swm_debug & SWM_D_SPAWN) != 0) {
2751                 fprintf(stderr, "spawn_custom: result = ");
2752                 for (i = 0; i < prog->argc; i++)
2753                         fprintf(stderr, "\"%s\" ", real_args[i]);
2754                 fprintf(stderr, "\n");
2755         }
2756 #endif
2757
2758         a.argv = real_args;
2759         spawn(r, &a);
2760         for (i = 0; i < prog->argc; i++)
2761                 free(real_args[i]);
2762         free(real_args);
2763 }
2764
2765 void
2766 setspawn(struct spawn_prog *prog)
2767 {
2768         int                     i, j;
2769
2770         if (prog == NULL || prog->name == NULL)
2771                 return;
2772
2773         /* find existing */
2774         for (i = 0; i < spawns_length; i++) {
2775                 if (!strcmp(spawns[i].name, prog->name)) {
2776                         /* found */
2777                         if (prog->argv == NULL) {
2778                                 /* delete */
2779                                 DNPRINTF(SWM_D_SPAWN,
2780                                     "setspawn: delete #%d %s\n",
2781                                     i, spawns[i].name);
2782                                 free(spawns[i].name);
2783                                 for (j = 0; j < spawns[i].argc; j++)
2784                                         free(spawns[i].argv[j]);
2785                                 free(spawns[i].argv);
2786                                 j = spawns_length - 1;
2787                                 if (i < j)
2788                                         spawns[i] = spawns[j];
2789                                 spawns_length--;
2790                                 free(prog->name);
2791                         } else {
2792                                 /* replace */
2793                                 DNPRINTF(SWM_D_SPAWN,
2794                                     "setspawn: replace #%d %s\n",
2795                                     i, spawns[i].name);
2796                                 free(spawns[i].name);
2797                                 for (j = 0; j < spawns[i].argc; j++)
2798                                         free(spawns[i].argv[j]);
2799                                 free(spawns[i].argv);
2800                                 spawns[i] = *prog;
2801                         }
2802                         /* found case handled */
2803                         free(prog);
2804                         return;
2805                 }
2806         }
2807
2808         if (prog->argv == NULL) {
2809                 fprintf(stderr,
2810                     "error: setspawn: cannot find program %s", prog->name);
2811                 free(prog);
2812                 return;
2813         }
2814
2815         /* not found: add */
2816         if (spawns_size == 0 || spawns == NULL) {
2817                 spawns_size = 4;
2818                 DNPRINTF(SWM_D_SPAWN, "setspawn: init list %d\n", spawns_size);
2819                 spawns = malloc((size_t)spawns_size *
2820                     sizeof(struct spawn_prog));
2821                 if (spawns == NULL) {
2822                         fprintf(stderr, "setspawn: malloc failed\n");
2823                         perror(" failed");
2824                         quit(NULL, NULL);
2825                 }
2826         } else if (spawns_length == spawns_size) {
2827                 spawns_size *= 2;
2828                 DNPRINTF(SWM_D_SPAWN, "setspawn: grow list %d\n", spawns_size);
2829                 spawns = realloc(spawns, (size_t)spawns_size *
2830                     sizeof(struct spawn_prog));
2831                 if (spawns == NULL) {
2832                         fprintf(stderr, "setspawn: realloc failed\n");
2833                         perror(" failed");
2834                         quit(NULL, NULL);
2835                 }
2836         }
2837
2838         if (spawns_length < spawns_size) {
2839                 DNPRINTF(SWM_D_SPAWN, "setspawn: add #%d %s\n",
2840                     spawns_length, prog->name);
2841                 i = spawns_length++;
2842                 spawns[i] = *prog;
2843         } else {
2844                 fprintf(stderr, "spawns array problem?\n");
2845                 if (spawns == NULL) {
2846                         fprintf(stderr, "spawns array is NULL!\n");
2847                         quit(NULL, NULL);
2848                 }
2849         }
2850         free(prog);
2851 }
2852
2853 int
2854 setconfspawn(char *selector, char *value, int flags)
2855 {
2856         struct spawn_prog       *prog;
2857         char                    *vp, *cp, *word;
2858
2859         DNPRINTF(SWM_D_SPAWN, "setconfspawn: [%s] [%s]\n", selector, value);
2860         if ((prog = calloc(1, sizeof *prog)) == NULL)
2861                 err(1, "setconfspawn: calloc prog");
2862         prog->name = strdup(selector);
2863         if (prog->name == NULL)
2864                 err(1, "setconfspawn prog->name");
2865         if ((cp = vp = strdup(value)) == NULL)
2866                 err(1, "setconfspawn: strdup(value) ");
2867         while ((word = strsep(&cp, " \t")) != NULL) {
2868                 DNPRINTF(SWM_D_SPAWN, "setconfspawn: arg [%s]\n", word);
2869                 if (cp)
2870                         cp += (long)strspn(cp, " \t");
2871                 if (strlen(word) > 0) {
2872                         prog->argc++;
2873                         prog->argv = realloc(prog->argv,
2874                             prog->argc * sizeof(char *));
2875                         if ((prog->argv[prog->argc - 1] = strdup(word)) == NULL)
2876                                 err(1, "setconfspawn: strdup");
2877                 }
2878         }
2879         free(vp);
2880
2881         setspawn(prog);
2882
2883         DNPRINTF(SWM_D_SPAWN, "setconfspawn: done\n");
2884         return (0);
2885 }
2886
2887 void
2888 setup_spawn(void)
2889 {
2890         setconfspawn("term",            "xterm",                0);
2891         setconfspawn("screenshot_all",  "screenshot.sh full",   0);
2892         setconfspawn("screenshot_wind", "screenshot.sh window", 0);
2893         setconfspawn("lock",            "xlock",                0);
2894         setconfspawn("initscr",         "initscreen.sh",        0);
2895         setconfspawn("menu",            "dmenu_run"
2896                                         " -fn $bar_font"
2897                                         " -nb $bar_color"
2898                                         " -nf $bar_font_color"
2899                                         " -sb $bar_border"
2900                                         " -sf $bar_color",      0);
2901 }
2902
2903 /* key bindings */
2904 #define SWM_MODNAME_SIZE        32
2905 #define SWM_KEY_WS              "\n+ \t"
2906 int
2907 parsekeys(char *keystr, unsigned int currmod, unsigned int *mod, KeySym *ks)
2908 {
2909         char                    *cp, *name;
2910         KeySym                  uks;
2911         DNPRINTF(SWM_D_KEY, "parsekeys: enter [%s]\n", keystr);
2912         if (mod == NULL || ks == NULL) {
2913                 DNPRINTF(SWM_D_KEY, "parsekeys: no mod or key vars\n");
2914                 return (1);
2915         }
2916         if (keystr == NULL || strlen(keystr) == 0) {
2917                 DNPRINTF(SWM_D_KEY, "parsekeys: no keystr\n");
2918                 return (1);
2919         }
2920         cp = keystr;
2921         *ks = NoSymbol;
2922         *mod = 0;
2923         while ((name = strsep(&cp, SWM_KEY_WS)) != NULL) {
2924                 DNPRINTF(SWM_D_KEY, "parsekeys: key [%s]\n", name);
2925                 if (cp)
2926                         cp += (long)strspn(cp, SWM_KEY_WS);
2927                 if (strncasecmp(name, "MOD", SWM_MODNAME_SIZE) == 0)
2928                         *mod |= currmod;
2929                 else if (!strncasecmp(name, "Mod1", SWM_MODNAME_SIZE))
2930                         *mod |= Mod1Mask;
2931                 else if (!strncasecmp(name, "Mod2", SWM_MODNAME_SIZE))
2932                         *mod += Mod2Mask;
2933                 else if (!strncmp(name, "Mod3", SWM_MODNAME_SIZE))
2934                         *mod |= Mod3Mask;
2935                 else if (!strncmp(name, "Mod4", SWM_MODNAME_SIZE))
2936                         *mod |= Mod4Mask;
2937                 else if (strncasecmp(name, "SHIFT", SWM_MODNAME_SIZE) == 0)
2938                         *mod |= ShiftMask;
2939                 else if (strncasecmp(name, "CONTROL", SWM_MODNAME_SIZE) == 0)
2940                         *mod |= ControlMask;
2941                 else {
2942                         *ks = XStringToKeysym(name);
2943                         XConvertCase(*ks, ks, &uks);
2944                         if (ks == NoSymbol) {
2945                                 DNPRINTF(SWM_D_KEY,
2946                                     "parsekeys: invalid key %s\n",
2947                                     name);
2948                                 return (1);
2949                         }
2950                 }
2951         }
2952         DNPRINTF(SWM_D_KEY, "parsekeys: leave ok\n");
2953         return (0);
2954 }
2955
2956 char *
2957 strdupsafe(char *str)
2958 {
2959         if (str == NULL)
2960                 return (NULL);
2961         else
2962                 return (strdup(str));
2963 }
2964
2965 void
2966 setkeybinding(unsigned int mod, KeySym ks, enum keyfuncid kfid, char *spawn_name)
2967 {
2968         int                     i, j;
2969         DNPRINTF(SWM_D_KEY, "setkeybinding: enter %s [%s]\n",
2970             keyfuncs[kfid].name, spawn_name);
2971         /* find existing */
2972         for (i = 0; i < keys_length; i++) {
2973                 if (keys[i].mod == mod && keys[i].keysym == ks) {
2974                         if (kfid == kf_invalid) {
2975                                 /* found: delete */
2976                                 DNPRINTF(SWM_D_KEY,
2977                                     "setkeybinding: delete #%d %s\n",
2978                                     i, keyfuncs[keys[i].funcid].name);
2979                                 free(keys[i].spawn_name);
2980                                 j = keys_length - 1;
2981                                 if (i < j)
2982                                         keys[i] = keys[j];
2983                                 keys_length--;
2984                                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2985                                 return;
2986                         } else {
2987                                 /* found: replace */
2988                                 DNPRINTF(SWM_D_KEY,
2989                                     "setkeybinding: replace #%d %s %s\n",
2990                                     i, keyfuncs[keys[i].funcid].name,
2991                                     spawn_name);
2992                                 free(keys[i].spawn_name);
2993                                 keys[i].mod = mod;
2994                                 keys[i].keysym = ks;
2995                                 keys[i].funcid = kfid;
2996                                 keys[i].spawn_name = strdupsafe(spawn_name);
2997                                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2998                                 return;
2999                         }
3000                 }
3001         }
3002         if (kfid == kf_invalid) {
3003                 fprintf(stderr,
3004                     "error: setkeybinding: cannot find mod/key combination");
3005                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
3006                 return;
3007         }
3008         /* not found: add */
3009         if (keys_size == 0 || keys == NULL) {
3010                 keys_size = 4;
3011                 DNPRINTF(SWM_D_KEY, "setkeybinding: init list %d\n", keys_size);
3012                 keys = malloc((size_t)keys_size * sizeof(struct key));
3013                 if (!keys) {
3014                         fprintf(stderr, "malloc failed\n");
3015                         perror(" failed");
3016                         quit(NULL, NULL);
3017                 }
3018         } else if (keys_length == keys_size) {
3019                 keys_size *= 2;
3020                 DNPRINTF(SWM_D_KEY, "setkeybinding: grow list %d\n", keys_size);
3021                 keys = realloc(keys, (size_t)keys_size * sizeof(struct key));
3022                 if (!keys) {
3023                         fprintf(stderr, "realloc failed\n");
3024                         perror(" failed");
3025                         quit(NULL, NULL);
3026                 }
3027         }
3028         if (keys_length < keys_size) {
3029                 j = keys_length++;
3030                 DNPRINTF(SWM_D_KEY, "setkeybinding: add #%d %s %s\n",
3031                     j, keyfuncs[kfid].name, spawn_name);
3032                 keys[j].mod = mod;
3033                 keys[j].keysym = ks;
3034                 keys[j].funcid = kfid;
3035                 keys[j].spawn_name = strdupsafe(spawn_name);
3036         } else {
3037                 fprintf(stderr, "keys array problem?\n");
3038                 if (!keys) {
3039                         fprintf(stderr, "keys array problem\n");
3040                         quit(NULL, NULL);
3041                 }
3042         }
3043         DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
3044 }
3045
3046 int
3047 setconfbinding(char *selector, char *value, int flags)
3048 {
3049         enum keyfuncid          kfid;
3050         unsigned int            mod;
3051         KeySym                  ks;
3052         int                     i;
3053         DNPRINTF(SWM_D_KEY, "setconfbinding: enter\n");
3054         if (selector == NULL) {
3055                 DNPRINTF(SWM_D_KEY, "setconfbinding: unbind %s\n", value);
3056                 if (parsekeys(value, mod_key, &mod, &ks) == 0) {
3057                         kfid = kf_invalid;
3058                         setkeybinding(mod, ks, kfid, NULL);
3059                         return (0);
3060                 } else
3061                         return (1);
3062         }
3063         /* search by key function name */
3064         for (kfid = 0; kfid < kf_invalid; (kfid)++) {
3065                 if (strncasecmp(selector, keyfuncs[kfid].name,
3066                     SWM_FUNCNAME_LEN) == 0) {
3067                         DNPRINTF(SWM_D_KEY, "setconfbinding: %s: match\n",
3068                             selector);
3069                         if (parsekeys(value, mod_key, &mod, &ks) == 0) {
3070                                 setkeybinding(mod, ks, kfid, NULL);
3071                                 return (0);
3072                         } else
3073                                 return (1);
3074                 }
3075         }
3076         /* search by custom spawn name */
3077         for (i = 0; i < spawns_length; i++) {
3078                 if (strcasecmp(selector, spawns[i].name) == 0) {
3079                         DNPRINTF(SWM_D_KEY, "setconfbinding: %s: match\n",
3080                             selector);
3081                         if (parsekeys(value, mod_key, &mod, &ks) == 0) {
3082                                 setkeybinding(mod, ks, kf_spawn_custom,
3083                                     spawns[i].name);
3084                                 return (0);
3085                         } else
3086                                 return (1);
3087                 }
3088         }
3089         DNPRINTF(SWM_D_KEY, "setconfbinding: no match\n");
3090         return (1);
3091 }
3092
3093 void
3094 setup_keys(void)
3095 {
3096         setkeybinding(MODKEY,           XK_space,       kf_cycle_layout,NULL);
3097         setkeybinding(MODKEY|ShiftMask, XK_space,       kf_stack_reset, NULL);
3098         setkeybinding(MODKEY,           XK_h,           kf_master_shrink,NULL);
3099         setkeybinding(MODKEY,           XK_l,           kf_master_grow, NULL);
3100         setkeybinding(MODKEY,           XK_comma,       kf_master_add,  NULL);
3101         setkeybinding(MODKEY,           XK_period,      kf_master_del,  NULL);
3102         setkeybinding(MODKEY|ShiftMask, XK_comma,       kf_stack_inc,   NULL);
3103         setkeybinding(MODKEY|ShiftMask, XK_period,      kf_stack_dec,   NULL);
3104         setkeybinding(MODKEY,           XK_Return,      kf_swap_main,   NULL);
3105         setkeybinding(MODKEY,           XK_j,           kf_focus_next,  NULL);
3106         setkeybinding(MODKEY,           XK_k,           kf_focus_prev,  NULL);
3107         setkeybinding(MODKEY|ShiftMask, XK_j,           kf_swap_next,   NULL);
3108         setkeybinding(MODKEY|ShiftMask, XK_k,           kf_swap_prev,   NULL);
3109         setkeybinding(MODKEY|ShiftMask, XK_Return,      kf_spawn_term,  NULL);
3110         setkeybinding(MODKEY,           XK_p,           kf_spawn_custom,        "menu");
3111         setkeybinding(MODKEY|ShiftMask, XK_q,           kf_quit,        NULL);
3112         setkeybinding(MODKEY,           XK_q,           kf_restart,     NULL);
3113         setkeybinding(MODKEY,           XK_m,           kf_focus_main,  NULL);
3114         setkeybinding(MODKEY,           XK_1,           kf_ws_1,        NULL);
3115         setkeybinding(MODKEY,           XK_2,           kf_ws_2,        NULL);
3116         setkeybinding(MODKEY,           XK_3,           kf_ws_3,        NULL);
3117         setkeybinding(MODKEY,           XK_4,           kf_ws_4,        NULL);
3118         setkeybinding(MODKEY,           XK_5,           kf_ws_5,        NULL);
3119         setkeybinding(MODKEY,           XK_6,           kf_ws_6,        NULL);
3120         setkeybinding(MODKEY,           XK_7,           kf_ws_7,        NULL);
3121         setkeybinding(MODKEY,           XK_8,           kf_ws_8,        NULL);
3122         setkeybinding(MODKEY,           XK_9,           kf_ws_9,        NULL);
3123         setkeybinding(MODKEY,           XK_0,           kf_ws_10,       NULL);
3124         setkeybinding(MODKEY,           XK_Right,       kf_ws_next,     NULL);
3125         setkeybinding(MODKEY,           XK_Left,        kf_ws_prev,     NULL);
3126         setkeybinding(MODKEY,           XK_a,           kf_ws_prior,    NULL);
3127         setkeybinding(MODKEY|ShiftMask, XK_Right,       kf_screen_next, NULL);
3128         setkeybinding(MODKEY|ShiftMask, XK_Left,        kf_screen_prev, NULL);
3129         setkeybinding(MODKEY|ShiftMask, XK_1,           kf_mvws_1,      NULL);
3130         setkeybinding(MODKEY|ShiftMask, XK_2,           kf_mvws_2,      NULL);
3131         setkeybinding(MODKEY|ShiftMask, XK_3,           kf_mvws_3,      NULL);
3132         setkeybinding(MODKEY|ShiftMask, XK_4,           kf_mvws_4,      NULL);
3133         setkeybinding(MODKEY|ShiftMask, XK_5,           kf_mvws_5,      NULL);
3134         setkeybinding(MODKEY|ShiftMask, XK_6,           kf_mvws_6,      NULL);
3135         setkeybinding(MODKEY|ShiftMask, XK_7,           kf_mvws_7,      NULL);
3136         setkeybinding(MODKEY|ShiftMask, XK_8,           kf_mvws_8,      NULL);
3137         setkeybinding(MODKEY|ShiftMask, XK_9,           kf_mvws_9,      NULL);
3138         setkeybinding(MODKEY|ShiftMask, XK_0,           kf_mvws_10,     NULL);
3139         setkeybinding(MODKEY,           XK_b,           kf_bar_toggle,  NULL);
3140         setkeybinding(MODKEY,           XK_Tab,         kf_focus_next,  NULL);
3141         setkeybinding(MODKEY|ShiftMask, XK_Tab,         kf_focus_prev,  NULL);
3142         setkeybinding(MODKEY|ShiftMask, XK_x,           kf_wind_kill,   NULL);
3143         setkeybinding(MODKEY,           XK_x,           kf_wind_del,    NULL);
3144         setkeybinding(MODKEY,           XK_s,           kf_spawn_custom,        "screenshot_all");
3145         setkeybinding(MODKEY|ShiftMask, XK_s,           kf_spawn_custom,        "screenshot_wind");
3146         setkeybinding(MODKEY,           XK_t,           kf_float_toggle,NULL);
3147         setkeybinding(MODKEY|ShiftMask, XK_v,           kf_version,     NULL);
3148         setkeybinding(MODKEY|ShiftMask, XK_Delete,      kf_spawn_custom,        "lock");
3149         setkeybinding(MODKEY|ShiftMask, XK_i,           kf_spawn_custom,        "initscr");
3150 #ifdef SWM_DEBUG
3151         setkeybinding(MODKEY|ShiftMask, XK_d,           kf_dumpwins,    NULL);
3152 #endif
3153 }
3154
3155 void
3156 updatenumlockmask(void)
3157 {
3158         unsigned int            i, j;
3159         XModifierKeymap         *modmap;
3160
3161         DNPRINTF(SWM_D_MISC, "updatenumlockmask\n");
3162         numlockmask = 0;
3163         modmap = XGetModifierMapping(display);
3164         for (i = 0; i < 8; i++)
3165                 for (j = 0; j < modmap->max_keypermod; j++)
3166                         if (modmap->modifiermap[i * modmap->max_keypermod + j]
3167                           == XKeysymToKeycode(display, XK_Num_Lock))
3168                                 numlockmask = (1 << i);
3169
3170         XFreeModifiermap(modmap);
3171 }
3172
3173 void
3174 grabkeys(void)
3175 {
3176         unsigned int            i, j, k;
3177         KeyCode                 code;
3178         unsigned int            modifiers[] =
3179             { 0, LockMask, numlockmask, numlockmask | LockMask };
3180
3181         DNPRINTF(SWM_D_MISC, "grabkeys\n");
3182         updatenumlockmask();
3183
3184         for (k = 0; k < ScreenCount(display); k++) {
3185                 if (TAILQ_EMPTY(&screens[k].rl))
3186                         continue;
3187                 XUngrabKey(display, AnyKey, AnyModifier, screens[k].root);
3188                 for (i = 0; i < keys_length; i++) {
3189                         if ((code = XKeysymToKeycode(display, keys[i].keysym)))
3190                                 for (j = 0; j < LENGTH(modifiers); j++)
3191                                         XGrabKey(display, code,
3192                                             keys[i].mod | modifiers[j],
3193                                             screens[k].root, True,
3194                                             GrabModeAsync, GrabModeAsync);
3195                 }
3196         }
3197 }
3198
3199 void
3200 grabbuttons(struct ws_win *win, int focused)
3201 {
3202         unsigned int            i, j;
3203         unsigned int            modifiers[] =
3204             { 0, LockMask, numlockmask, numlockmask|LockMask };
3205
3206         updatenumlockmask();
3207         XUngrabButton(display, AnyButton, AnyModifier, win->id);
3208         if(focused) {
3209                 for (i = 0; i < LENGTH(buttons); i++)
3210                         if (buttons[i].action == client_click)
3211                                 for (j = 0; j < LENGTH(modifiers); j++)
3212                                         XGrabButton(display, buttons[i].button,
3213                                             buttons[i].mask | modifiers[j],
3214                                             win->id, False, BUTTONMASK,
3215                                             GrabModeAsync, GrabModeSync, None,
3216                                             None);
3217         } else
3218                 XGrabButton(display, AnyButton, AnyModifier, win->id, False,
3219                     BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
3220 }
3221
3222 const char *quirkname[] = {
3223         "NONE",         /* config string for "no value" */
3224         "FLOAT",
3225         "TRANSSZ",
3226         "ANYWHERE",
3227         "XTERM_FONTADJ",
3228         "FULLSCREEN",
3229 };
3230
3231 /* SWM_Q_WS: retain '|' for back compat for now (2009-08-11) */
3232 #define SWM_Q_WS                "\n|+ \t"
3233 int
3234 parsequirks(char *qstr, unsigned long *quirk)
3235 {
3236         char                    *cp, *name;
3237         int                     i;
3238
3239         if (quirk == NULL)
3240                 return (1);
3241
3242         cp = qstr;
3243         *quirk = 0;
3244         while ((name = strsep(&cp, SWM_Q_WS)) != NULL) {
3245                 if (cp)
3246                         cp += (long)strspn(cp, SWM_Q_WS);
3247                 for (i = 0; i < LENGTH(quirkname); i++) {
3248                         if (!strncasecmp(name, quirkname[i], SWM_QUIRK_LEN)) {
3249                                 DNPRINTF(SWM_D_QUIRK, "parsequirks: %s\n", name);
3250                                 if (i == 0) {
3251                                         *quirk = 0;
3252                                         return (0);
3253                                 }
3254                                 *quirk |= 1 << (i-1);
3255                                 break;
3256                         }
3257                 }
3258                 if (i >= LENGTH(quirkname)) {
3259                         DNPRINTF(SWM_D_QUIRK,
3260                             "parsequirks: invalid quirk [%s]\n", name);
3261                         return (1);
3262                 }
3263         }
3264         return (0);
3265 }
3266
3267 void
3268 setquirk(const char *class, const char *name, const int quirk)
3269 {
3270         int                     i, j;
3271
3272         /* find existing */
3273         for (i = 0; i < quirks_length; i++) {
3274                 if (!strcmp(quirks[i].class, class) &&
3275                     !strcmp(quirks[i].name, name)) {
3276                         if (!quirk) {
3277                                 /* found: delete */
3278                                 DNPRINTF(SWM_D_QUIRK,
3279                                     "setquirk: delete #%d %s:%s\n",
3280                                     i, quirks[i].class, quirks[i].name);
3281                                 free(quirks[i].class);
3282                                 free(quirks[i].name);
3283                                 j = quirks_length - 1;
3284                                 if (i < j)
3285                                         quirks[i] = quirks[j];
3286                                 quirks_length--;
3287                                 return;
3288                         } else {
3289                                 /* found: replace */
3290                                 DNPRINTF(SWM_D_QUIRK,
3291                                     "setquirk: replace #%d %s:%s\n",
3292                                     i, quirks[i].class, quirks[i].name);
3293                                 free(quirks[i].class);
3294                                 free(quirks[i].name);
3295                                 quirks[i].class = strdup(class);
3296                                 quirks[i].name = strdup(name);
3297                                 quirks[i].quirk = quirk;
3298                                 return;
3299                         }
3300                 }
3301         }
3302         if (!quirk) {
3303                 fprintf(stderr,
3304                     "error: setquirk: cannot find class/name combination");
3305                 return;
3306         }
3307         /* not found: add */
3308         if (quirks_size == 0 || quirks == NULL) {
3309                 quirks_size = 4;
3310                 DNPRINTF(SWM_D_QUIRK, "setquirk: init list %d\n", quirks_size);
3311                 quirks = malloc((size_t)quirks_size * sizeof(struct quirk));
3312                 if (!quirks) {
3313                         fprintf(stderr, "setquirk: malloc failed\n");
3314                         perror(" failed");
3315                         quit(NULL, NULL);
3316                 }
3317         } else if (quirks_length == quirks_size) {
3318                 quirks_size *= 2;
3319                 DNPRINTF(SWM_D_QUIRK, "setquirk: grow list %d\n", quirks_size);
3320                 quirks = realloc(quirks, (size_t)quirks_size * sizeof(struct quirk));
3321                 if (!quirks) {
3322                         fprintf(stderr, "setquirk: realloc failed\n");
3323                         perror(" failed");
3324                         quit(NULL, NULL);
3325                 }
3326         }
3327         if (quirks_length < quirks_size) {
3328                 DNPRINTF(SWM_D_QUIRK, "setquirk: add %d\n", quirks_length);
3329                 j = quirks_length++;
3330                 quirks[j].class = strdup(class);
3331                 quirks[j].name = strdup(name);
3332                 quirks[j].quirk = quirk;
3333         } else {
3334                 fprintf(stderr, "quirks array problem?\n");
3335                 if (!quirks) {
3336                         fprintf(stderr, "quirks array problem!\n");
3337                         quit(NULL, NULL);
3338                 }
3339         }
3340 }
3341
3342 int
3343 setconfquirk(char *selector, char *value, int flags)
3344 {
3345         char                    *cp, *class, *name;
3346         int                     retval;
3347         unsigned long           quirks;
3348         if (selector == NULL)
3349                 return (0);
3350         if ((cp = strchr(selector, ':')) == NULL)
3351                 return (0);
3352         *cp = '\0';
3353         class = selector;
3354         name = cp + 1;
3355         if ((retval = parsequirks(value, &quirks)) == 0)
3356                 setquirk(class, name, quirks);
3357         return (retval);
3358 }
3359
3360 void
3361 setup_quirks(void)
3362 {
3363         setquirk("MPlayer",             "xv",           SWM_Q_FLOAT | SWM_Q_FULLSCREEN);
3364         setquirk("OpenOffice.org 3.2",  "VCLSalFrame",  SWM_Q_FLOAT);
3365         setquirk("Firefox-bin",         "firefox-bin",  SWM_Q_TRANSSZ);
3366         setquirk("Firefox",             "Dialog",       SWM_Q_FLOAT);
3367         setquirk("Gimp",                "gimp",         SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3368         setquirk("XTerm",               "xterm",        SWM_Q_XTERM_FONTADJ);
3369         setquirk("xine",                "Xine Window",  SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3370         setquirk("Xitk",                "Xitk Combo",   SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3371         setquirk("xine",                "xine Panel",   SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3372         setquirk("Xitk",                "Xine Window",  SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3373         setquirk("xine",                "xine Video Fullscreen Window", SWM_Q_FULLSCREEN | SWM_Q_FLOAT);
3374         setquirk("pcb",                 "pcb",          SWM_Q_FLOAT);
3375 }
3376
3377 /* conf file stuff */
3378 #define SWM_CONF_FILE   "scrotwm.conf"
3379
3380 enum    { SWM_S_BAR_DELAY, SWM_S_BAR_ENABLED, SWM_S_STACK_ENABLED,
3381           SWM_S_CLOCK_ENABLED, SWM_S_CLOCK_FORMAT, SWM_S_CYCLE_EMPTY,
3382           SWM_S_CYCLE_VISIBLE, SWM_S_SS_ENABLED, SWM_S_TERM_WIDTH,
3383           SWM_S_TITLE_CLASS_ENABLED, SWM_S_TITLE_NAME_ENABLED,
3384           SWM_S_FOCUS_MODE, SWM_S_BAR_FONT, SWM_S_BAR_ACTION, SWM_S_SPAWN_TERM,
3385           SWM_S_SS_APP, SWM_S_DIALOG_RATIO
3386         };
3387
3388 int
3389 setconfvalue(char *selector, char *value, int flags)
3390 {
3391         switch (flags) {
3392         case SWM_S_BAR_DELAY:
3393                 bar_delay = atoi(value);
3394                 break;
3395         case SWM_S_BAR_ENABLED:
3396                 bar_enabled = atoi(value);
3397                 break;
3398         case SWM_S_STACK_ENABLED:
3399                 stack_enabled = atoi(value);
3400                 break;
3401         case SWM_S_CLOCK_ENABLED:
3402                 clock_enabled = atoi(value);
3403                 break;
3404         case SWM_S_CLOCK_FORMAT:
3405 #ifndef SWM_DENY_CLOCK_FORMAT
3406                 free(clock_format);
3407                 if ((clock_format = strdup(value)) == NULL)
3408                         err(1, "setconfvalue: clock_format");
3409 #endif
3410                 break;
3411         case SWM_S_CYCLE_EMPTY:
3412                 cycle_empty = atoi(value);
3413                 break;
3414         case SWM_S_CYCLE_VISIBLE:
3415                 cycle_visible = atoi(value);
3416                 break;
3417         case SWM_S_SS_ENABLED:
3418                 ss_enabled = atoi(value);
3419                 break;
3420         case SWM_S_TERM_WIDTH:
3421                 term_width = atoi(value);
3422                 break;
3423         case SWM_S_TITLE_CLASS_ENABLED:
3424                 title_class_enabled = atoi(value);
3425                 break;
3426         case SWM_S_TITLE_NAME_ENABLED:
3427                 title_name_enabled = atoi(value);
3428                 break;
3429         case SWM_S_FOCUS_MODE:
3430                 if (!strcmp(value, "default"))
3431                         focus_mode = SWM_FOCUS_DEFAULT;
3432                 else if (!strcmp(value, "follow_cursor"))
3433                         focus_mode = SWM_FOCUS_FOLLOW;
3434                 else if (!strcmp(value, "synergy"))
3435                         focus_mode = SWM_FOCUS_SYNERGY;
3436                 else
3437                         err(1, "focus_mode");
3438                 break;
3439         case SWM_S_BAR_FONT:
3440                 free(bar_fonts[0]);
3441                 if ((bar_fonts[0] = strdup(value)) == NULL)
3442                         err(1, "setconfvalue: bar_font");
3443                 break;
3444         case SWM_S_BAR_ACTION:
3445                 free(bar_argv[0]);
3446                 if ((bar_argv[0] = strdup(value)) == NULL)
3447                         err(1, "setconfvalue: bar_action");
3448                 break;
3449         case SWM_S_SPAWN_TERM:
3450                 free(spawn_term[0]);
3451                 if ((spawn_term[0] = strdup(value)) == NULL)
3452                         err(1, "setconfvalue: spawn_term");
3453                 break;
3454         case SWM_S_SS_APP:
3455                 break;
3456         case SWM_S_DIALOG_RATIO:
3457                 dialog_ratio = atof(value);
3458                 if (dialog_ratio > 1.0 || dialog_ratio <= .3)
3459                         dialog_ratio = .6;
3460                 break;
3461         default:
3462                 return (1);
3463         }
3464         return (0);
3465 }
3466
3467 int
3468 setconfmodkey(char *selector, char *value, int flags)
3469 {
3470         if (!strncasecmp(value, "Mod1", strlen("Mod1")))
3471                 update_modkey(Mod1Mask);
3472         else if (!strncasecmp(value, "Mod2", strlen("Mod2")))
3473                 update_modkey(Mod2Mask);
3474         else if (!strncasecmp(value, "Mod3", strlen("Mod3")))
3475                 update_modkey(Mod3Mask);
3476         else if (!strncasecmp(value, "Mod4", strlen("Mod4")))
3477                 update_modkey(Mod4Mask);
3478         else
3479                 return (1);
3480         return (0);
3481 }
3482
3483 int
3484 setconfcolor(char *selector, char *value, int flags)
3485 {
3486         setscreencolor(value, ((selector == NULL)?-1:atoi(selector)), flags);
3487         return (0);
3488 }
3489
3490 int
3491 setconfregion(char *selector, char *value, int flags)
3492 {
3493         custom_region(value);
3494         return (0);
3495 }
3496
3497 /* config options */
3498 struct config_option {
3499         char                    *optname;
3500         int (*func)(char*, char*, int);
3501         int funcflags;
3502 };
3503 struct config_option configopt[] = {
3504         { "bar_enabled",                setconfvalue,   SWM_S_BAR_ENABLED },
3505         { "bar_border",                 setconfcolor,   SWM_S_COLOR_BAR_BORDER },
3506         { "bar_color",                  setconfcolor,   SWM_S_COLOR_BAR },
3507         { "bar_font_color",             setconfcolor,   SWM_S_COLOR_BAR_FONT },
3508         { "bar_font",                   setconfvalue,   SWM_S_BAR_FONT },
3509         { "bar_action",                 setconfvalue,   SWM_S_BAR_ACTION },
3510         { "bar_delay",                  setconfvalue,   SWM_S_BAR_DELAY },
3511         { "bind",                       setconfbinding, 0 },
3512         { "stack_enabled",              setconfvalue,   SWM_S_STACK_ENABLED },
3513         { "clock_enabled",              setconfvalue,   SWM_S_CLOCK_ENABLED },
3514         { "clock_format",               setconfvalue,   SWM_S_CLOCK_FORMAT },
3515         { "color_focus",                setconfcolor,   SWM_S_COLOR_FOCUS },
3516         { "color_unfocus",              setconfcolor,   SWM_S_COLOR_UNFOCUS },
3517         { "cycle_empty",                setconfvalue,   SWM_S_CYCLE_EMPTY },
3518         { "cycle_visible",              setconfvalue,   SWM_S_CYCLE_VISIBLE },
3519         { "dialog_ratio",               setconfvalue,   SWM_S_DIALOG_RATIO },
3520         { "modkey",                     setconfmodkey,  0 },
3521         { "program",                    setconfspawn,   0 },
3522         { "quirk",                      setconfquirk,   0 },
3523         { "region",                     setconfregion,  0 },
3524         { "spawn_term",                 setconfvalue,   SWM_S_SPAWN_TERM },
3525         { "screenshot_enabled",         setconfvalue,   SWM_S_SS_ENABLED },
3526         { "screenshot_app",             setconfvalue,   SWM_S_SS_APP },
3527         { "term_width",                 setconfvalue,   SWM_S_TERM_WIDTH },
3528         { "title_class_enabled",        setconfvalue,   SWM_S_TITLE_CLASS_ENABLED },
3529         { "title_name_enabled",         setconfvalue,   SWM_S_TITLE_NAME_ENABLED },
3530         { "focus_mode",                 setconfvalue,   SWM_S_FOCUS_MODE },
3531 };
3532
3533
3534 int
3535 conf_load(char *filename)
3536 {
3537         FILE                    *config;
3538         char                    *line, *cp, *optsub, *optval;
3539         size_t                  linelen, lineno = 0;
3540         int                     wordlen, i, optind;
3541         struct config_option    *opt;
3542
3543         DNPRINTF(SWM_D_CONF, "conf_load begin\n");
3544
3545         if (filename == NULL) {
3546                 fprintf(stderr, "conf_load: no filename\n");
3547                 return (1);
3548         }
3549         if ((config = fopen(filename, "r")) == NULL) {
3550                 warn("conf_load: fopen");
3551                 return (1);
3552         }
3553
3554         while (!feof(config)) {
3555                 if ((line = fparseln(config, &linelen, &lineno, NULL, 0))
3556                     == NULL) {
3557                         if (ferror(config))
3558                                 err(1, "%s", filename);
3559                         else
3560                                 continue;
3561                 }
3562                 cp = line;
3563                 cp += strspn(cp, " \t\n"); /* eat whitespace */
3564                 if (cp[0] == '\0') {
3565                         /* empty line */
3566                         free(line);
3567                         continue;
3568                 }
3569                 /* get config option */
3570                 wordlen = strcspn(cp, "=[ \t\n");
3571                 if (wordlen == 0) {
3572                         warnx("%s: line %zd: no option found",
3573                             filename, lineno);
3574                         return (1);
3575                 }
3576                 optind = -1;
3577                 for (i = 0; i < LENGTH(configopt); i++) {
3578                         opt = &configopt[i];
3579                         if (!strncasecmp(cp, opt->optname, wordlen) &&
3580                             strlen(opt->optname) == wordlen) {
3581                                 optind = i;
3582                                 break;
3583                         }
3584                 }
3585                 if (optind == -1) {
3586                         warnx("%s: line %zd: unknown option %.*s",
3587                             filename, lineno, wordlen, cp);
3588                         return (1);
3589                 }
3590                 cp += wordlen;
3591                 cp += strspn(cp, " \t\n"); /* eat whitespace */
3592                 /* get [selector] if any */
3593                 optsub = NULL;
3594                 if (*cp == '[') {
3595                         cp++;
3596                         wordlen = strcspn(cp, "]");
3597                         if (*cp != ']') {
3598                                 if (wordlen == 0) {
3599                                         warnx("%s: line %zd: syntax error",
3600                                             filename, lineno);
3601                                         return (1);
3602                                 }
3603                                 asprintf(&optsub, "%.*s", wordlen, cp);
3604                         }
3605                         cp += wordlen;
3606                         cp += strspn(cp, "] \t\n"); /* eat trailing */
3607                 }
3608                 cp += strspn(cp, "= \t\n"); /* eat trailing */
3609                 /* get RHS value */
3610                 optval = strdup(cp);
3611                 /* call function to deal with it all */
3612                 if (configopt[optind].func(optsub, optval,
3613                     configopt[optind].funcflags) != 0) {
3614                         fprintf(stderr, "%s line %zd: %s\n",
3615                             filename, lineno, line);
3616                         errx(1, "%s: line %zd: invalid data for %s",
3617                             filename, lineno, configopt[optind].optname);
3618                 }
3619                 free(optval);
3620                 free(optsub);
3621                 free(line);
3622         }
3623
3624         fclose(config);
3625         DNPRINTF(SWM_D_CONF, "conf_load end\n");
3626
3627         return (0);
3628 }
3629
3630 void
3631 set_child_transient(struct ws_win *win)
3632 {
3633         struct ws_win           *parent;
3634
3635         parent = find_window(win->transient);
3636         if (parent)
3637                 parent->child_trans = win;
3638 }
3639
3640 struct ws_win *
3641 manage_window(Window id)
3642 {
3643         Window                  trans = 0;
3644         struct workspace        *ws;
3645         struct ws_win           *win, *ww;
3646         int                     format, i, ws_idx, n, border_me = 0;
3647         unsigned long           nitems, bytes;
3648         Atom                    ws_idx_atom = 0, type;
3649         Atom                    *prot = NULL, *pp;
3650         unsigned char           ws_idx_str[SWM_PROPLEN], *prop = NULL;
3651         struct swm_region       *r;
3652         long                    mask;
3653         const char              *errstr;
3654         XWindowChanges          wc;
3655
3656         if ((win = find_window(id)) != NULL)
3657                 return (win);   /* already being managed */
3658
3659         /* see if we are on the unmanaged list */
3660         if ((win = find_unmanaged_window(id)) != NULL) {
3661                 DNPRINTF(SWM_D_MISC, "manage previously unmanaged window "
3662                     "%lu\n", win->id);
3663                 TAILQ_REMOVE(&win->ws->unmanagedlist, win, entry);
3664                 TAILQ_INSERT_TAIL(&win->ws->winlist, win, entry);
3665                 if (win->transient)
3666                         set_child_transient(win);
3667                 return (win);
3668         }
3669
3670         if ((win = calloc(1, sizeof(struct ws_win))) == NULL)
3671                 errx(1, "calloc: failed to allocate memory for new window");
3672
3673         /* Get all the window data in one shot */
3674         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
3675         if (ws_idx_atom)
3676                 XGetWindowProperty(display, id, ws_idx_atom, 0, SWM_PROPLEN,
3677                     False, XA_STRING, &type, &format, &nitems, &bytes, &prop);
3678         XGetWindowAttributes(display, id, &win->wa);
3679         XGetWMNormalHints(display, id, &win->sh, &mask);
3680         XGetTransientForHint(display, id, &trans);
3681         if (trans) {
3682                 win->transient = trans;
3683                 set_child_transient(win);
3684                 DNPRINTF(SWM_D_MISC, "manage_window: win %lu transient %lu\n",
3685                     win->id, win->transient);
3686         }
3687         /* get supported protocols */
3688         if (XGetWMProtocols(display, id, &prot, &n)) {
3689                 for (i = 0, pp = prot; i < n; i++, pp++) {
3690                         if (*pp == takefocus)
3691                                 win->take_focus = 1;
3692                         if (*pp == adelete)
3693                                 win->can_delete = 1;
3694                 }
3695                 if (prot)
3696                         XFree(prot);
3697         }
3698
3699         /*
3700          * Figure out where to put the window. If it was previously assigned to
3701          * a workspace (either by spawn() or manually moving), and isn't
3702          * transient, * put it in the same workspace
3703          */
3704         r = root_to_region(win->wa.root);
3705         if (prop && win->transient == 0) {
3706                 DNPRINTF(SWM_D_PROP, "got property _SWM_WS=%s\n", prop);
3707                 ws_idx = strtonum(prop, 0, 9, &errstr);
3708                 if (errstr) {
3709                         DNPRINTF(SWM_D_EVENT, "window idx is %s: %s",
3710                             errstr, prop);
3711                 }
3712                 ws = &r->s->ws[ws_idx];
3713         } else {
3714                 ws = r->ws;
3715                 /* this should launch transients in the same ws as parent */
3716                 if (id && trans)
3717                         if ((ww = find_window(trans)) != NULL)
3718                                 if (ws->r) {
3719                                         ws = ww->ws;
3720                                         if (ww->ws->r)
3721                                                 r = ww->ws->r;
3722                                         else
3723                                                 fprintf(stderr,
3724                                                     "fix this bug mcbride\n");
3725                                         border_me = 1;
3726                                 }
3727         }
3728
3729         /* set up the window layout */
3730         win->id = id;
3731         win->ws = ws;
3732         win->s = r->s;  /* this never changes */
3733         TAILQ_INSERT_TAIL(&ws->winlist, win, entry);
3734
3735         win->g.w = win->wa.width;
3736         win->g.h = win->wa.height;
3737         win->g.x = win->wa.x;
3738         win->g.y = win->wa.y;
3739
3740         /* Set window properties so we can remember this after reincarnation */
3741         if (ws_idx_atom && prop == NULL &&
3742             snprintf(ws_idx_str, SWM_PROPLEN, "%d", ws->idx) < SWM_PROPLEN) {
3743                 DNPRINTF(SWM_D_PROP, "setting property _SWM_WS to %s\n",
3744                     ws_idx_str);
3745                 XChangeProperty(display, win->id, ws_idx_atom, XA_STRING, 8,
3746                     PropModeReplace, ws_idx_str, SWM_PROPLEN);
3747         }
3748         XFree(prop);
3749
3750         if (XGetClassHint(display, win->id, &win->ch)) {
3751                 DNPRINTF(SWM_D_CLASS, "class: %s name: %s\n",
3752                     win->ch.res_class, win->ch.res_name);
3753
3754                 /* java is retarded so treat it special */
3755                 if (strstr(win->ch.res_name, "sun-awt")) {
3756                         win->java = 1;
3757                         border_me = 1;
3758                 }
3759
3760                 for (i = 0; i < quirks_length; i++){
3761                         if (!strcmp(win->ch.res_class, quirks[i].class) &&
3762                             !strcmp(win->ch.res_name, quirks[i].name)) {
3763                                 DNPRINTF(SWM_D_CLASS, "found: %s name: %s\n",
3764                                     win->ch.res_class, win->ch.res_name);
3765                                 if (quirks[i].quirk & SWM_Q_FLOAT) {
3766                                         win->floating = 1;
3767                                         border_me = 1;
3768                                 }
3769                                 win->quirks = quirks[i].quirk;
3770                         }
3771                 }
3772         }
3773
3774         /* alter window position if quirky */
3775         if (win->quirks & SWM_Q_ANYWHERE) {
3776                 win->manual = 1; /* don't center the quirky windows */
3777                 bzero(&wc, sizeof wc);
3778                 mask = 0;
3779                 if (win->g.y < bar_height) {
3780                         win->g.y = wc.y = bar_height;
3781                         mask |= CWY;
3782                 }
3783                 if (win->g.w + win->g.x > WIDTH(r)) {
3784                         win->g.x = wc.x = WIDTH(r) - win->g.w - 2;
3785                         mask |= CWX;
3786                 }
3787                 border_me = 1;
3788         }
3789
3790         /* Reset font sizes (the bruteforce way; no default keybinding). */
3791         if (win->quirks & SWM_Q_XTERM_FONTADJ) {
3792                 for (i = 0; i < SWM_MAX_FONT_STEPS; i++)
3793                         fake_keypress(win, XK_KP_Subtract, ShiftMask);
3794                 for (i = 0; i < SWM_MAX_FONT_STEPS; i++)
3795                         fake_keypress(win, XK_KP_Add, ShiftMask);
3796         }
3797
3798         /* border me */
3799         if (border_me) {
3800                 bzero(&wc, sizeof wc);
3801                 wc.border_width = 1;
3802                 mask = CWBorderWidth;
3803                 XConfigureWindow(display, win->id, mask, &wc);
3804                 configreq_win(win);
3805         }
3806
3807         XSelectInput(display, id, EnterWindowMask | FocusChangeMask |
3808             PropertyChangeMask | StructureNotifyMask);
3809
3810         set_win_state(win, NormalState);
3811
3812         /* floaters need to be mapped if they are in the current workspace */
3813         if ((win->floating || win->transient) && (ws->idx == r->ws->idx))
3814                 XMapRaised(display, win->id);
3815
3816         return (win);
3817 }
3818
3819 void
3820 free_window(struct ws_win *win)
3821 {
3822         DNPRINTF(SWM_D_MISC, "free_window:  %lu\n", win->id);
3823
3824         if (win == NULL)
3825                 return;
3826
3827         /* needed for restart wm */
3828         set_win_state(win, WithdrawnState);
3829
3830         TAILQ_REMOVE(&win->ws->unmanagedlist, win, entry);
3831
3832         if (win->ch.res_class)
3833                 XFree(win->ch.res_class);
3834         if (win->ch.res_name)
3835                 XFree(win->ch.res_name);
3836
3837         kill_refs(win);
3838
3839         /* paint memory */
3840         memset(win, 0xff, sizeof *win); /* XXX kill later */
3841
3842         free(win);
3843 }
3844
3845 void
3846 unmanage_window(struct ws_win *win)
3847 {
3848         struct ws_win           *parent;
3849
3850         if (win == NULL)
3851                 return;
3852
3853         DNPRINTF(SWM_D_MISC, "unmanage_window:  %lu\n", win->id);
3854
3855         if (win->transient) {
3856                 parent = find_window(win->transient);
3857                 if (parent)
3858                         parent->child_trans = NULL;
3859         }
3860
3861         /* work around for mplayer going full screen */
3862         if (!win->floating)
3863                 focus_prev(win);
3864
3865         TAILQ_REMOVE(&win->ws->winlist, win, entry);
3866         TAILQ_INSERT_TAIL(&win->ws->unmanagedlist, win, entry);
3867
3868         kill_refs(win);
3869 }
3870
3871 void
3872 focus_magic(struct ws_win *win, int do_trans)
3873 {
3874         DNPRINTF(SWM_D_FOCUS, "focus_magic: %lu %d\n", WINID(win), do_trans);
3875
3876         if (win == NULL)
3877                 return;
3878
3879         if (do_trans == SWM_F_TRANSIENT && win->child_trans) {
3880                 /* win = parent & has a transient so focus on that */
3881                 if (win->java) {
3882                         focus_win(win->child_trans);
3883                         if (win->child_trans->take_focus)
3884                                 client_msg(win, takefocus);
3885                 } else {
3886                         focus_win(win->child_trans);
3887                         if (win->child_trans->take_focus)
3888                                 client_msg(win->child_trans, takefocus);
3889                 }
3890         } else {
3891                 /* regular focus */
3892                 focus_win(win);
3893                 if (win->take_focus)
3894                         client_msg(win, takefocus);
3895         }
3896 }
3897
3898 void
3899 expose(XEvent *e)
3900 {
3901         DNPRINTF(SWM_D_EVENT, "expose: window: %lu\n", e->xexpose.window);
3902 }
3903
3904 void
3905 keypress(XEvent *e)
3906 {
3907         unsigned int            i;
3908         KeySym                  keysym;
3909         XKeyEvent               *ev = &e->xkey;
3910
3911         DNPRINTF(SWM_D_EVENT, "keypress: window: %lu\n", ev->window);
3912
3913         keysym = XKeycodeToKeysym(display, (KeyCode)ev->keycode, 0);
3914         for (i = 0; i < keys_length; i++)
3915                 if (keysym == keys[i].keysym
3916                    && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
3917                    && keyfuncs[keys[i].funcid].func) {
3918                         if (keys[i].funcid == kf_spawn_custom)
3919                                 spawn_custom(
3920                                     root_to_region(ev->root),
3921                                     &(keyfuncs[keys[i].funcid].args),
3922                                     keys[i].spawn_name
3923                                     );
3924                         else
3925                                 keyfuncs[keys[i].funcid].func(
3926                                     root_to_region(ev->root),
3927                                     &(keyfuncs[keys[i].funcid].args)
3928                                     );
3929                 }
3930 }
3931
3932 void
3933 buttonpress(XEvent *e)
3934 {
3935         struct ws_win           *win;
3936         int                     i, action;
3937         XButtonPressedEvent     *ev = &e->xbutton;
3938
3939         DNPRINTF(SWM_D_EVENT, "buttonpress: window: %lu\n", ev->window);
3940
3941         action = root_click;
3942         if ((win = find_window(ev->window)) == NULL)
3943                 return;
3944
3945         focus_magic(win, SWM_F_TRANSIENT);
3946         action = client_click;
3947
3948         for (i = 0; i < LENGTH(buttons); i++)
3949                 if (action == buttons[i].action && buttons[i].func &&
3950                     buttons[i].button == ev->button &&
3951                     CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
3952                         buttons[i].func(win, &buttons[i].args);
3953 }
3954
3955 void
3956 configurerequest(XEvent *e)
3957 {
3958         XConfigureRequestEvent  *ev = &e->xconfigurerequest;
3959         struct ws_win           *win;
3960         int                     new = 0;
3961         XWindowChanges          wc;
3962
3963         if ((win = find_window(ev->window)) == NULL)
3964                 if ((win = find_unmanaged_window(ev->window)) == NULL)
3965                         new = 1;
3966
3967         if (new) {
3968                 DNPRINTF(SWM_D_EVENT, "configurerequest: new window: %lu\n",
3969                     ev->window);
3970                 bzero(&wc, sizeof wc);
3971                 wc.x = ev->x;
3972                 wc.y = ev->y;
3973                 wc.width = ev->width;
3974                 wc.height = ev->height;
3975                 wc.border_width = ev->border_width;
3976                 wc.sibling = ev->above;
3977                 wc.stack_mode = ev->detail;
3978                 XConfigureWindow(display, ev->window, ev->value_mask, &wc);
3979         } else {
3980                 DNPRINTF(SWM_D_EVENT, "configurerequest: change window: %lu\n",
3981                     ev->window);
3982                 if (win->floating) {
3983                         if (ev->value_mask & CWX)
3984                                 win->g.x = ev->x;
3985                         if (ev->value_mask & CWY)
3986                                 win->g.y = ev->y;
3987                         if (ev->value_mask & CWWidth)
3988                                 win->g.w = ev->width;
3989                         if (ev->value_mask & CWHeight)
3990                                 win->g.h = ev->height;
3991                 }
3992                 config_win(win);
3993         }
3994 }
3995
3996 void
3997 configurenotify(XEvent *e)
3998 {
3999         struct ws_win           *win;
4000         long                    mask;
4001
4002         DNPRINTF(SWM_D_EVENT, "configurenotify: window: %lu\n",
4003             e->xconfigure.window);
4004
4005         win = find_window(e->xconfigure.window);
4006         if (win) {
4007                 XGetWMNormalHints(display, win->id, &win->sh, &mask);
4008                 adjust_font(win);
4009                 if (font_adjusted)
4010                         stack();
4011         }
4012 }
4013
4014 void
4015 destroynotify(XEvent *e)
4016 {
4017         struct ws_win           *win;
4018         XDestroyWindowEvent     *ev = &e->xdestroywindow;
4019
4020         DNPRINTF(SWM_D_EVENT, "destroynotify: window %lu\n", ev->window);
4021
4022         if ((win = find_window(ev->window)) == NULL) {
4023                 if ((win = find_unmanaged_window(ev->window)) == NULL)
4024                         return;
4025                 free_window(win);
4026                 return;
4027         }
4028
4029         /* make sure we focus on something */
4030         win->floating = 0;
4031
4032         unmanage_window(win);
4033         stack();
4034         free_window(win);
4035 }
4036
4037 void
4038 enternotify(XEvent *e)
4039 {
4040         XCrossingEvent          *ev = &e->xcrossing;
4041         XEvent                  cne;
4042         struct ws_win           *win;
4043 #if 0
4044         struct ws_win           *w;
4045         Window                  focus_return;
4046         int                     revert_to_return;
4047 #endif
4048         DNPRINTF(SWM_D_FOCUS, "enternotify: window: %lu mode %d detail %d root "
4049             "%lu subwindow %lu same_screen %d focus %d state %d\n",
4050             ev->window, ev->mode, ev->detail, ev->root, ev->subwindow,
4051             ev->same_screen, ev->focus, ev->state);
4052
4053         switch (focus_mode) {
4054         case SWM_FOCUS_DEFAULT:
4055                 if (QLength(display)) {
4056                         DNPRINTF(SWM_D_EVENT, "ignore enternotify %d\n",
4057                             QLength(display));
4058                         return;
4059                 }
4060                 break;
4061         case SWM_FOCUS_FOLLOW:
4062                 break;
4063         case SWM_FOCUS_SYNERGY:
4064 #if 0
4065         /*
4066          * all these checks need to be in this order because the
4067          * XCheckTypedWindowEvent relies on weeding out the previous events
4068          *
4069          * making this code an option would enable a follow mouse for focus
4070          * feature
4071          */
4072
4073         /*
4074          * state is set when we are switching workspaces and focus is set when
4075          * the window or a subwindow already has focus (occurs during restart).
4076          *
4077          * Only honor the focus flag if last_focus_event is not FocusOut,
4078          * this allows scrotwm to continue to control focus when another
4079          * program is also playing with it.
4080          */
4081         if (ev->state || (ev->focus && last_focus_event != FocusOut)) {
4082                 DNPRINTF(SWM_D_EVENT, "ignoring enternotify: focus\n");
4083                 return;
4084         }
4085
4086         /*
4087          * happens when a window is created or destroyed and the border
4088          * crosses the mouse pointer and when switching ws
4089          *
4090          * we need the subwindow test to see if we came from root in order
4091          * to give focus to floaters
4092          */
4093         if (ev->mode == NotifyNormal && ev->detail == NotifyVirtual &&
4094             ev->subwindow == 0) {
4095                 DNPRINTF(SWM_D_EVENT, "ignoring enternotify: NotifyVirtual\n");
4096                 return;
4097         }
4098
4099         /* this window already has focus */
4100         if (ev->mode == NotifyNormal && ev->detail == NotifyInferior) {
4101                 DNPRINTF(SWM_D_EVENT, "ignoring enternotify: win has focus\n");
4102                 return;
4103         }
4104
4105         /* this window is being deleted or moved to another ws */
4106         if (XCheckTypedWindowEvent(display, ev->window, ConfigureNotify,
4107             &cne) == True) {
4108                 DNPRINTF(SWM_D_EVENT, "ignoring enternotify: configurenotify\n");
4109                 XPutBackEvent(display, &cne);
4110                 return;
4111         }
4112
4113         if ((win = find_window(ev->window)) == NULL) {
4114                 DNPRINTF(SWM_D_EVENT, "ignoring enternotify: win == NULL\n");
4115                 return;
4116         }
4117
4118         /*
4119          * In fullstack kill all enters unless they come from a different ws
4120          * (i.e. another region) or focus has been grabbed externally.
4121          */
4122         if (win->ws->cur_layout->flags & SWM_L_FOCUSPREV &&
4123             last_focus_event != FocusOut) {
4124                 XGetInputFocus(display, &focus_return, &revert_to_return);
4125                 if ((w = find_window(focus_return)) == NULL ||
4126                     w->ws == win->ws) {
4127                         DNPRINTF(SWM_D_EVENT, "ignoring event: fullstack\n");
4128                         return;
4129                 }
4130         }
4131 #endif
4132                 break;
4133         }
4134
4135         if ((win = find_window(ev->window)) == NULL) {
4136                 DNPRINTF(SWM_D_EVENT, "ignoring enternotify: win == NULL\n");
4137                 return;
4138         }
4139
4140         /*
4141          * if we have more enternotifies let them handle it in due time
4142          */
4143         if (XCheckTypedEvent(display, EnterNotify, &cne) == True) {
4144                 DNPRINTF(SWM_D_EVENT,
4145                     "ignoring enternotify: got more enternotify\n");
4146                 XPutBackEvent(display, &cne);
4147                 return;
4148         }
4149
4150         focus_magic(win, SWM_F_TRANSIENT);
4151 }
4152
4153 /* lets us use one switch statement for arbitrary mode/detail combinations */
4154 #define MERGE_MEMBERS(a,b)      (((a & 0xffff) << 16) | (b & 0xffff))
4155
4156 void
4157 focusevent(XEvent *e)
4158 {
4159         DNPRINTF(SWM_D_EVENT, "focusevent: %s window: %lu mode %d detail %d\n",
4160             ev->type == FocusIn ? "entering" : "leaving",
4161             ev->window, ev->mode, ev->detail);
4162 #if 0
4163         struct ws_win           *win;
4164         u_int32_t               mode_detail;
4165         XFocusChangeEvent       *ev = &e->xfocus;
4166
4167         DNPRINTF(SWM_D_EVENT, "focusevent: %s window: %lu mode %d detail %d\n",
4168             ev->type == FocusIn ? "entering" : "leaving",
4169             ev->window, ev->mode, ev->detail);
4170
4171         if (last_focus_event == ev->type) {
4172                 DNPRINTF(SWM_D_FOCUS, "ignoring focusevent: bad ordering\n");
4173                 return;
4174         }
4175
4176         last_focus_event = ev->type;
4177         mode_detail = MERGE_MEMBERS(ev->mode, ev->detail);
4178
4179         switch (mode_detail) {
4180         /* synergy client focus operations */
4181         case MERGE_MEMBERS(NotifyNormal, NotifyNonlinear):
4182         case MERGE_MEMBERS(NotifyNormal, NotifyNonlinearVirtual):
4183
4184         /* synergy server focus operations */
4185         case MERGE_MEMBERS(NotifyWhileGrabbed, NotifyNonlinear):
4186
4187         /* Entering applications like rdesktop that mangle the pointer */
4188         case MERGE_MEMBERS(NotifyNormal, NotifyPointer):
4189
4190                 if ((win = find_window(e->xfocus.window)) != NULL && win->ws->r)
4191                         XSetWindowBorder(display, win->id,
4192                             win->ws->r->s->c[ev->type == FocusIn ?
4193                             SWM_S_COLOR_FOCUS : SWM_S_COLOR_UNFOCUS].color);
4194                 break;
4195         default:
4196                 fprintf(stderr, "ignoring focusevent\n");
4197                 DNPRINTF(SWM_D_FOCUS, "ignoring focusevent\n");
4198                 break;
4199         }
4200 #endif
4201 }
4202
4203 void
4204 mapnotify(XEvent *e)
4205 {
4206         struct ws_win           *win;
4207         XMapEvent               *ev = &e->xmap;
4208
4209         DNPRINTF(SWM_D_EVENT, "mapnotify: window: %lu\n", ev->window);
4210
4211         win = manage_window(ev->window);
4212         if (win)
4213                 set_win_state(win, NormalState);
4214 }
4215
4216 void
4217 mappingnotify(XEvent *e)
4218 {
4219         XMappingEvent           *ev = &e->xmapping;
4220
4221         XRefreshKeyboardMapping(ev);
4222         if (ev->request == MappingKeyboard)
4223                 grabkeys();
4224 }
4225
4226 void
4227 maprequest(XEvent *e)
4228 {
4229         struct ws_win           *win;
4230         struct swm_region       *r;
4231         XWindowAttributes       wa;
4232         XMapRequestEvent        *ev = &e->xmaprequest;
4233
4234         DNPRINTF(SWM_D_EVENT, "maprequest: window: %lu\n",
4235             e->xmaprequest.window);
4236
4237         if (!XGetWindowAttributes(display, ev->window, &wa))
4238                 return;
4239         if (wa.override_redirect)
4240                 return;
4241
4242         win = manage_window(e->xmaprequest.window);
4243         if (win == NULL)
4244                 return; /* can't happen */
4245
4246         stack();
4247
4248         /* make new win focused */
4249         r = root_to_region(win->wa.root);
4250         if (win->ws == r->ws)
4251                 focus_magic(win, SWM_F_GENERIC);
4252 }
4253
4254 void
4255 propertynotify(XEvent *e)
4256 {
4257         struct ws_win           *win;
4258         XPropertyEvent          *ev = &e->xproperty;
4259
4260         DNPRINTF(SWM_D_EVENT, "propertynotify: window: %lu\n",
4261             ev->window);
4262
4263         if (ev->state == PropertyDelete)
4264                 return; /* ignore */
4265         win = find_window(ev->window);
4266         if (win == NULL)
4267                 return;
4268
4269         switch (ev->atom) {
4270         case XA_WM_NORMAL_HINTS:
4271 #if 0
4272                 long            mask;
4273                 XGetWMNormalHints(display, win->id, &win->sh, &mask);
4274                 fprintf(stderr, "normal hints: flag 0x%x\n", win->sh.flags);
4275                 if (win->sh.flags & PMinSize) {
4276                         win->g.w = win->sh.min_width;
4277                         win->g.h = win->sh.min_height;
4278                         fprintf(stderr, "min %d %d\n", win->g.w, win->g.h);
4279                 }
4280                 XMoveResizeWindow(display, win->id,
4281                     win->g.x, win->g.y, win->g.w, win->g.h);
4282 #endif
4283                 break;
4284         default:
4285                 break;
4286         }
4287 }
4288
4289 void
4290 unmapnotify(XEvent *e)
4291 {
4292         struct ws_win           *win;
4293
4294         DNPRINTF(SWM_D_EVENT, "unmapnotify: window: %lu\n", e->xunmap.window);
4295
4296         /* determine if we need to help unmanage this window */
4297         win = find_window(e->xunmap.window);
4298         if (win == NULL)
4299                 return;
4300
4301         if (getstate(e->xunmap.window) == NormalState) {
4302                 unmanage_window(win);
4303                 stack();
4304         }
4305 }
4306
4307 void
4308 visibilitynotify(XEvent *e)
4309 {
4310         int                     i;
4311         struct swm_region       *r;
4312
4313         DNPRINTF(SWM_D_EVENT, "visibilitynotify: window: %lu\n",
4314             e->xvisibility.window);
4315         if (e->xvisibility.state == VisibilityUnobscured)
4316                 for (i = 0; i < ScreenCount(display); i++)
4317                         TAILQ_FOREACH(r, &screens[i].rl, entry)
4318                                 if (e->xvisibility.window == r->bar_window)
4319                                         bar_update();
4320 }
4321
4322 int
4323 xerror_start(Display *d, XErrorEvent *ee)
4324 {
4325         other_wm = 1;
4326         return (-1);
4327 }
4328
4329 int
4330 xerror(Display *d, XErrorEvent *ee)
4331 {
4332         /* fprintf(stderr, "error: %p %p\n", display, ee); */
4333         return (-1);
4334 }
4335
4336 int
4337 active_wm(void)
4338 {
4339         other_wm = 0;
4340         xerrorxlib = XSetErrorHandler(xerror_start);
4341
4342         /* this causes an error if some other window manager is running */
4343         XSelectInput(display, DefaultRootWindow(display),
4344             SubstructureRedirectMask);
4345         XSync(display, False);
4346         if (other_wm)
4347                 return (1);
4348
4349         XSetErrorHandler(xerror);
4350         XSync(display, False);
4351         return (0);
4352 }
4353
4354 void
4355 new_region(struct swm_screen *s, int x, int y, int w, int h)
4356 {
4357         struct swm_region       *r, *n;
4358         struct workspace        *ws = NULL;
4359         int                     i;
4360
4361         DNPRINTF(SWM_D_MISC, "new region: screen[%d]:%dx%d+%d+%d\n",
4362              s->idx, w, h, x, y);
4363
4364         /* remove any conflicting regions */
4365         n = TAILQ_FIRST(&s->rl);
4366         while (n) {
4367                 r = n;
4368                 n = TAILQ_NEXT(r, entry);
4369                 if (X(r) < (x + w) &&
4370                     (X(r) + WIDTH(r)) > x &&
4371                     Y(r) < (y + h) &&
4372                     (Y(r) + HEIGHT(r)) > y) {
4373                         XDestroyWindow(display, r->bar_window);
4374                         TAILQ_REMOVE(&s->rl, r, entry);
4375                         TAILQ_INSERT_TAIL(&s->orl, r, entry);
4376                 }
4377         }
4378
4379         /* search old regions for one to reuse */
4380
4381         /* size + location match */
4382         TAILQ_FOREACH(r, &s->orl, entry)
4383                 if (X(r) == x && Y(r) == y &&
4384                     HEIGHT(r) == h && WIDTH(r) == w)
4385                         break;
4386
4387         /* size match */
4388         TAILQ_FOREACH(r, &s->orl, entry)
4389                 if (HEIGHT(r) == h && WIDTH(r) == w)
4390                         break;
4391
4392         if (r != NULL) {
4393                 TAILQ_REMOVE(&s->orl, r, entry);
4394                 /* try to use old region's workspace */
4395                 if (r->ws->r == NULL)
4396                         ws = r->ws;
4397         } else
4398                 if ((r = calloc(1, sizeof(struct swm_region))) == NULL)
4399                         errx(1, "calloc: failed to allocate memory for screen");
4400
4401         /* if we don't have a workspace already, find one */
4402         if (ws == NULL) {
4403                 for (i = 0; i < SWM_WS_MAX; i++)
4404                         if (s->ws[i].r == NULL) {
4405                                 ws = &s->ws[i];
4406                                 break;
4407                         }
4408         }
4409
4410         if (ws == NULL)
4411                 errx(1, "no free workspaces\n");
4412
4413         X(r) = x;
4414         Y(r) = y;
4415         WIDTH(r) = w;
4416         HEIGHT(r) = h;
4417         r->s = s;
4418         r->ws = ws;
4419         r->ws_prior = NULL;
4420         ws->r = r;
4421         TAILQ_INSERT_TAIL(&s->rl, r, entry);
4422 }
4423
4424 void
4425 scan_xrandr(int i)
4426 {
4427 #ifdef SWM_XRR_HAS_CRTC
4428         XRRCrtcInfo             *ci;
4429         XRRScreenResources      *sr;
4430         int                     c;
4431         int                     ncrtc = 0;
4432 #endif /* SWM_XRR_HAS_CRTC */
4433         struct swm_region       *r;
4434
4435
4436         if (i >= ScreenCount(display))
4437                 errx(1, "invalid screen");
4438
4439         /* remove any old regions */
4440         while ((r = TAILQ_FIRST(&screens[i].rl)) != NULL) {
4441                 r->ws->old_r = r->ws->r = NULL;
4442                 XDestroyWindow(display, r->bar_window);
4443                 TAILQ_REMOVE(&screens[i].rl, r, entry);
4444                 TAILQ_INSERT_TAIL(&screens[i].orl, r, entry);
4445         }
4446
4447         /* map virtual screens onto physical screens */
4448 #ifdef SWM_XRR_HAS_CRTC
4449         outputs = 0;
4450         if (xrandr_support) {
4451                 sr = XRRGetScreenResources(display, screens[i].root);
4452                 if (sr == NULL)
4453                         new_region(&screens[i], 0, 0,
4454                             DisplayWidth(display, i),
4455                             DisplayHeight(display, i));
4456                 else
4457                         ncrtc = sr->ncrtc;
4458
4459                 for (c = 0, ci = NULL; c < ncrtc; c++) {
4460                         ci = XRRGetCrtcInfo(display, sr, sr->crtcs[c]);
4461                         if (ci->noutput == 0)
4462                                 continue;
4463                         outputs++;
4464
4465                         if (ci != NULL && ci->mode == None)
4466                                 new_region(&screens[i], 0, 0,
4467                                     DisplayWidth(display, i),
4468                                     DisplayHeight(display, i));
4469                         else
4470                                 new_region(&screens[i],
4471                                     ci->x, ci->y, ci->width, ci->height);
4472                 }
4473                 if (ci)
4474                         XRRFreeCrtcInfo(ci);
4475                 XRRFreeScreenResources(sr);
4476         } else
4477 #endif /* SWM_XRR_HAS_CRTC */
4478         {
4479                 new_region(&screens[i], 0, 0, DisplayWidth(display, i),
4480                     DisplayHeight(display, i));
4481         }
4482 }
4483
4484 void
4485 screenchange(XEvent *e) {
4486         XRRScreenChangeNotifyEvent      *xe = (XRRScreenChangeNotifyEvent *)e;
4487         struct swm_region               *r;
4488         int                             i;
4489
4490         DNPRINTF(SWM_D_EVENT, "screenchange: %lu\n", xe->root);
4491
4492         if (!XRRUpdateConfiguration(e))
4493                 return;
4494
4495         /* silly event doesn't include the screen index */
4496         for (i = 0; i < ScreenCount(display); i++)
4497                 if (screens[i].root == xe->root)
4498                         break;
4499         if (i >= ScreenCount(display))
4500                 errx(1, "screenchange: screen not found\n");
4501
4502         /* brute force for now, just re-enumerate the regions */
4503         scan_xrandr(i);
4504
4505         /* add bars to all regions */
4506         for (i = 0; i < ScreenCount(display); i++)
4507                 TAILQ_FOREACH(r, &screens[i].rl, entry)
4508                         bar_setup(r);
4509         stack();
4510 }
4511
4512 void
4513 setup_screens(void)
4514 {
4515         Window                  d1, d2, *wins = NULL;
4516         XWindowAttributes       wa;
4517         unsigned int            no;
4518         int                     i, j, k;
4519         int                     errorbase, major, minor;
4520         struct workspace        *ws;
4521         int                     ws_idx_atom;
4522         long                    state, manage;
4523
4524         if ((screens = calloc(ScreenCount(display),
4525              sizeof(struct swm_screen))) == NULL)
4526                 errx(1, "calloc: screens");
4527
4528         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
4529
4530         /* initial Xrandr setup */
4531         xrandr_support = XRRQueryExtension(display,
4532             &xrandr_eventbase, &errorbase);
4533         if (xrandr_support)
4534                 if (XRRQueryVersion(display, &major, &minor) && major < 1)
4535                         xrandr_support = 0;
4536
4537         /* map physical screens */
4538         for (i = 0; i < ScreenCount(display); i++) {
4539                 DNPRINTF(SWM_D_WS, "setup_screens: init screen %d\n", i);
4540                 screens[i].idx = i;
4541                 TAILQ_INIT(&screens[i].rl);
4542                 TAILQ_INIT(&screens[i].orl);
4543                 screens[i].root = RootWindow(display, i);
4544
4545                 /* set default colors */
4546                 setscreencolor("red", i + 1, SWM_S_COLOR_FOCUS);
4547                 setscreencolor("rgb:88/88/88", i + 1, SWM_S_COLOR_UNFOCUS);
4548                 setscreencolor("rgb:00/80/80", i + 1, SWM_S_COLOR_BAR_BORDER);
4549                 setscreencolor("black", i + 1, SWM_S_COLOR_BAR);
4550                 setscreencolor("rgb:a0/a0/a0", i + 1, SWM_S_COLOR_BAR_FONT);
4551
4552                 /* init all workspaces */
4553                 /* XXX these should be dynamically allocated too */
4554                 for (j = 0; j < SWM_WS_MAX; j++) {
4555                         ws = &screens[i].ws[j];
4556                         ws->idx = j;
4557                         ws->focus = NULL;
4558                         ws->r = NULL;
4559                         ws->old_r = NULL;
4560                         TAILQ_INIT(&ws->winlist);
4561                         TAILQ_INIT(&ws->unmanagedlist);
4562
4563                         for (k = 0; layouts[k].l_stack != NULL; k++)
4564                                 if (layouts[k].l_config != NULL)
4565                                         layouts[k].l_config(ws,
4566                                             SWM_ARG_ID_STACKINIT);
4567                         ws->cur_layout = &layouts[0];
4568                 }
4569                 /* grab existing windows (before we build the bars)*/
4570                 if (!XQueryTree(display, screens[i].root, &d1, &d2, &wins, &no))
4571                         continue;
4572
4573                 scan_xrandr(i);
4574
4575                 if (xrandr_support)
4576                         XRRSelectInput(display, screens[i].root,
4577                             RRScreenChangeNotifyMask);
4578
4579                 /* attach windows to a region */
4580                 /* normal windows */
4581                 for (j = 0; j < no; j++) {
4582                         if (!XGetWindowAttributes(display, wins[j], &wa) ||
4583                             wa.override_redirect ||
4584                             XGetTransientForHint(display, wins[j], &d1))
4585                                 continue;
4586
4587                         state = getstate(wins[j]);
4588                         manage = state == IconicState;
4589                         if (wa.map_state == IsViewable || manage)
4590                                 manage_window(wins[j]);
4591                 }
4592                 /* transient windows */
4593                 for (j = 0; j < no; j++) {
4594                         if (!XGetWindowAttributes(display, wins[j], &wa) ||
4595                             wa.override_redirect)
4596                                 continue;
4597
4598                         state = getstate(wins[j]);
4599                         manage = state == IconicState;
4600                         if (XGetTransientForHint(display, wins[j], &d1) &&
4601                             manage)
4602                                 manage_window(wins[j]);
4603                 }
4604                 if (wins) {
4605                         XFree(wins);
4606                         wins = NULL;
4607                 }
4608         }
4609 }
4610
4611 void
4612 setup_globals(void)
4613 {
4614         if ((bar_fonts[0] = strdup("-*-terminus-medium-*-*-*-*-*-*-*-*-*-*-*"))
4615             == NULL)
4616                 err(1, "setup_globals: strdup");
4617         if ((bar_fonts[1] = strdup("-*-times-medium-r-*-*-*-*-*-*-*-*-*-*"))
4618             == NULL)
4619                 err(1, "setup_globals: strdup");
4620         if ((bar_fonts[2] = strdup("-misc-fixed-medium-r-*-*-*-*-*-*-*-*-*-*"))
4621             == NULL)
4622                 err(1, "setup_globals: strdup");
4623         if ((spawn_term[0] = strdup("xterm")) == NULL)
4624                 err(1, "setup_globals: strdup");
4625         if ((clock_format = strdup("%a %b %d %R %Z %Y")) == NULL)
4626                 errx(1, "strdup");
4627 }
4628
4629 void
4630 workaround(void)
4631 {
4632         int                     i;
4633         Atom                    netwmcheck, netwmname, utf8_string;
4634         Window                  root;
4635
4636         /* work around sun jdk bugs, code from wmname */
4637         netwmcheck = XInternAtom(display, "_NET_SUPPORTING_WM_CHECK", False);
4638         netwmname = XInternAtom(display, "_NET_WM_NAME", False);
4639         utf8_string = XInternAtom(display, "UTF8_STRING", False);
4640         for (i = 0; i < ScreenCount(display); i++) {
4641                 root = screens[i].root;
4642                 XChangeProperty(display, root, netwmcheck, XA_WINDOW, 32,
4643                     PropModeReplace, (unsigned char *)&root, 1);
4644                 XChangeProperty(display, root, netwmname, utf8_string, 8,
4645                     PropModeReplace, "LG3D", strlen("LG3D"));
4646         }
4647 }
4648
4649 int
4650 main(int argc, char *argv[])
4651 {
4652         struct passwd           *pwd;
4653         struct swm_region       *r, *rr;
4654         struct ws_win           *winfocus = NULL;
4655         struct timeval          tv;
4656         union arg               a;
4657         char                    conf[PATH_MAX], *cfile = NULL;
4658         struct stat             sb;
4659         XEvent                  e;
4660         int                     xfd, i;
4661         fd_set                  rd;
4662
4663         start_argv = argv;
4664         fprintf(stderr, "Welcome to scrotwm V%s cvs tag: %s\n",
4665             SWM_VERSION, cvstag);
4666         if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
4667                 warnx("no locale support");
4668
4669         if (!(display = XOpenDisplay(0)))
4670                 errx(1, "can not open display");
4671
4672         if (active_wm())
4673                 errx(1, "other wm running");
4674
4675         /* handle some signale */
4676         installsignal(SIGINT, "INT");
4677         installsignal(SIGHUP, "HUP");
4678         installsignal(SIGQUIT, "QUIT");
4679         installsignal(SIGTERM, "TERM");
4680         installsignal(SIGCHLD, "CHLD");
4681
4682         astate = XInternAtom(display, "WM_STATE", False);
4683         aprot = XInternAtom(display, "WM_PROTOCOLS", False);
4684         adelete = XInternAtom(display, "WM_DELETE_WINDOW", False);
4685         takefocus = XInternAtom(display, "WM_TAKE_FOCUS", False);
4686
4687         /* look for local and global conf file */
4688         pwd = getpwuid(getuid());
4689         if (pwd == NULL)
4690                 errx(1, "invalid user %d", getuid());
4691
4692         setup_screens();
4693         setup_globals();
4694         setup_keys();
4695         setup_quirks();
4696         setup_spawn();
4697
4698         snprintf(conf, sizeof conf, "%s/.%s", pwd->pw_dir, SWM_CONF_FILE);
4699         if (stat(conf, &sb) != -1) {
4700                 if (S_ISREG(sb.st_mode))
4701                         cfile = conf;
4702         } else {
4703                 /* try global conf file */
4704                 snprintf(conf, sizeof conf, "/etc/%s", SWM_CONF_FILE);
4705                 if (!stat(conf, &sb))
4706                         if (S_ISREG(sb.st_mode))
4707                                 cfile = conf;
4708         }
4709         if (cfile)
4710                 conf_load(cfile);
4711
4712         /* setup all bars */
4713         for (i = 0; i < ScreenCount(display); i++)
4714                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
4715                         if (winfocus == NULL)
4716                                 winfocus = TAILQ_FIRST(&r->ws->winlist);
4717                         bar_setup(r);
4718                 }
4719
4720         /* set some values to work around bad programs */
4721         workaround();
4722
4723         unfocus_all();
4724
4725         grabkeys();
4726         stack();
4727
4728         xfd = ConnectionNumber(display);
4729         while (running) {
4730                 while (XPending(display)) {
4731                         XNextEvent(display, &e);
4732                         if (running == 0)
4733                                 goto done;
4734                         if (e.type < LASTEvent) {
4735                                 dumpevent(&e);
4736                                 if (handler[e.type])
4737                                         handler[e.type](&e);
4738                                 else
4739                                         DNPRINTF(SWM_D_EVENT,
4740                                             "win: %lu unknown event: %d\n",
4741                                             e.xany.window, e.type);
4742                         } else {
4743                                 switch (e.type - xrandr_eventbase) {
4744                                 case RRScreenChangeNotify:
4745                                         screenchange(&e);
4746                                         break;
4747                                 default:
4748                                         DNPRINTF(SWM_D_EVENT,
4749                                             "win: %lu unknown xrandr event: "
4750                                             "%d\n", e.xany.window, e.type);
4751                                         break;
4752                                 }
4753                         }
4754                 }
4755
4756                 /* if we are being restarted go focus on first window */
4757                 if (winfocus) {
4758                         rr = winfocus->ws->r;
4759                         if (rr == NULL) {
4760                                 /* not a visible window */
4761                                 winfocus = NULL;
4762                                 continue;
4763                         }
4764                         /* move pointer to first screen if multi screen */
4765                         if (ScreenCount(display) > 1 || outputs > 1)
4766                                 XWarpPointer(display, None, rr->s[0].root,
4767                                     0, 0, 0, 0, rr->g.x,
4768                                     rr->g.y + bar_enabled ? bar_height : 0);
4769
4770                         a.id = SWM_ARG_ID_FOCUSCUR;
4771                         focus(rr, &a);
4772                         winfocus = NULL;
4773                         continue;
4774                 }
4775
4776                 FD_ZERO(&rd);
4777                 FD_SET(xfd, &rd);
4778                 tv.tv_sec = 1;
4779                 tv.tv_usec = 0;
4780                 if (select(xfd + 1, &rd, NULL, NULL, &tv) == -1)
4781                         if (errno != EINTR)
4782                                 DNPRINTF(SWM_D_MISC, "select failed");
4783                 if (running == 0)
4784                         goto done;
4785                 if (bar_alarm) {
4786                         bar_alarm = 0;
4787                         bar_update();
4788                 }
4789         }
4790 done:
4791         bar_extra_stop();
4792         XFreeGC(display, bar_gc);
4793         XCloseDisplay(display);
4794
4795         return (0);
4796 }