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     "0.9.9"
  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 #if RANDR_MAJOR < 1
  88 #  error XRandR versions less than 1.0 are not supported
  89 #endif
  90
  91 #if RANDR_MAJOR >= 1
  92 #if RANDR_MINOR >= 2
  93 #define SWM_XRR_HAS_CRTC
  94 #endif
  95 #endif
  96
  97 /* #define SWM_DEBUG */
  98 #ifdef SWM_DEBUG
  99 #define DPRINTF(x...)           do { if (swm_debug) fprintf(stderr, x); } while(0)
 100 #define DNPRINTF(n,x...)        do { if (swm_debug & n) fprintf(stderr, x); } while(0)
 101 #define SWM_D_MISC              0x0001
 102 #define SWM_D_EVENT             0x0002
 103 #define SWM_D_WS                0x0004
 104 #define SWM_D_FOCUS             0x0008
 105 #define SWM_D_MOVE              0x0010
 106 #define SWM_D_STACK             0x0020
 107 #define SWM_D_MOUSE             0x0040
 108 #define SWM_D_PROP              0x0080
 109 #define SWM_D_CLASS             0x0100
 110 #define SWM_D_KEY               0x0200
 111 #define SWM_D_QUIRK             0x0400
 112 #define SWM_D_SPAWN             0x0800
 113 #define SWM_D_EVENTQ            0x1000
 114 #define SWM_D_CONF              0x2000
 115
 116 u_int32_t               swm_debug = 0
 117                             | SWM_D_MISC
 118                             | SWM_D_EVENT
 119                             | SWM_D_WS
 120                             | SWM_D_FOCUS
 121                             | SWM_D_MOVE
 122                             | SWM_D_STACK
 123                             | SWM_D_MOUSE
 124                             | SWM_D_PROP
 125                             | SWM_D_CLASS
 126                             | SWM_D_KEY
 127                             | SWM_D_QUIRK
 128                             | SWM_D_SPAWN
 129                             | SWM_D_EVENTQ
 130                             | SWM_D_CONF
 131                             ;
 132 #else
 133 #define DPRINTF(x...)
 134 #define DNPRINTF(n,x...)
 135 #endif
 136
 137 #define LENGTH(x)               (sizeof x / sizeof x[0])
 138 #define MODKEY                  Mod1Mask
 139 #define CLEANMASK(mask)         (mask & ~(numlockmask | LockMask))
 140 #define BUTTONMASK              (ButtonPressMask|ButtonReleaseMask)
 141 #define MOUSEMASK               (BUTTONMASK|PointerMotionMask)
 142 #define SWM_PROPLEN             (16)
 143 #define SWM_FUNCNAME_LEN        (32)
 144 #define SWM_KEYS_LEN            (255)
 145 #define SWM_QUIRK_LEN           (64)
 146 #define X(r)                    (r)->g.x
 147 #define Y(r)                    (r)->g.y
 148 #define WIDTH(r)                (r)->g.w
 149 #define HEIGHT(r)               (r)->g.h
 150 #define SWM_MAX_FONT_STEPS      (3)
 151
 152 #ifndef SWM_LIB
 153 #define SWM_LIB                 "/usr/local/lib/libswmhack.so"
 154 #endif
 155
 156 char                    **start_argv;
 157 Atom                    astate;
 158 Atom                    aprot;
 159 Atom                    adelete;
 160 volatile sig_atomic_t   running = 1;
 161 int                     (*xerrorxlib)(Display *, XErrorEvent *);
 162 int                     other_wm;
 163 int                     ss_enabled = 0;
 164 int                     xrandr_support;
 165 int                     xrandr_eventbase;
 166 int                     ignore_enter = 0;
 167 unsigned int            numlockmask = 0;
 168 Display                 *display;
 169
 170 int                     cycle_empty = 0;
 171 int                     cycle_visible = 0;
 172 int                     term_width = 0;
 173 int                     font_adjusted = 0;
 174 unsigned int            mod_key = MODKEY;
 175
 176 /* dialog windows */
 177 double                  dialog_ratio = .6;
 178 /* status bar */
 179 #define SWM_BAR_MAX     (256)
 180 char                    *bar_argv[] = { NULL, NULL };
 181 int                     bar_pipe[2];
 182 char                    bar_ext[SWM_BAR_MAX];
 183 char                    bar_vertext[SWM_BAR_MAX];
 184 int                     bar_version = 0;
 185 sig_atomic_t            bar_alarm = 0;
 186 int                     bar_delay = 30;
 187 int                     bar_enabled = 1;
 188 int                     bar_extra = 1;
 189 int                     bar_extra_running = 0;
 190 int                     bar_verbose = 1;
 191 int                     bar_height = 0;
 192 int                     clock_enabled = 1;
 193 int                     title_name_enabled = 0;
 194 int                     title_class_enabled = 0;
 195 pid_t                   bar_pid;
 196 GC                      bar_gc;
 197 XGCValues               bar_gcv;
 198 int                     bar_fidx = 0;
 199 XFontStruct             *bar_fs;
 200 char                    *bar_fonts[] = { NULL, NULL, NULL };    /* XXX Make fully dynamic */
 201 char                    *spawn_term[] = { NULL, NULL };         /* XXX Make fully dynamic */
 202
 203 #define SWM_MENU_FN     (2)
 204 #define SWM_MENU_NB     (4)
 205 #define SWM_MENU_NF     (6)
 206 #define SWM_MENU_SB     (8)
 207 #define SWM_MENU_SF     (10)
 208
 209 /* layout manager data */
 210 struct swm_geometry {
 211         int                     x;
 212         int                     y;
 213         int                     w;
 214         int                     h;
 215 };
 216
 217 struct swm_screen;
 218 struct workspace;
 219
 220 /* virtual "screens" */
 221 struct swm_region {
 222         TAILQ_ENTRY(swm_region) entry;
 223         struct swm_geometry     g;
 224         struct workspace        *ws;    /* current workspace on this region */
 225         struct swm_screen       *s;     /* screen idx */
 226         Window                  bar_window;
 227 };
 228 TAILQ_HEAD(swm_region_list, swm_region);
 229
 230 struct ws_win {
 231         TAILQ_ENTRY(ws_win)     entry;
 232         Window                  id;
 233         struct swm_geometry     g;
 234         int                     got_focus;
 235         int                     floating;
 236         int                     transient;
 237         int                     manual;
 238         int                     font_size_boundary[SWM_MAX_FONT_STEPS];
 239         int                     font_steps;
 240         int                     last_inc;
 241         int                     can_delete;
 242         unsigned long           quirks;
 243         struct workspace        *ws;    /* always valid */
 244         struct swm_screen       *s;     /* always valid, never changes */
 245         XWindowAttributes       wa;
 246         XSizeHints              sh;
 247         XClassHint              ch;
 248 };
 249 TAILQ_HEAD(ws_win_list, ws_win);
 250
 251 /* user/key callable function IDs */
 252 enum keyfuncid {
 253         kf_cycle_layout,
 254         kf_stack_reset,
 255         kf_master_shrink,
 256         kf_master_grow,
 257         kf_master_add,
 258         kf_master_del,
 259         kf_stack_inc,
 260         kf_stack_dec,
 261         kf_swap_main,
 262         kf_focus_next,
 263         kf_focus_prev,
 264         kf_swap_next,
 265         kf_swap_prev,
 266         kf_spawn_term,
 267         kf_spawn_menu,
 268         kf_quit,
 269         kf_restart,
 270         kf_focus_main,
 271         kf_ws_1,
 272         kf_ws_2,
 273         kf_ws_3,
 274         kf_ws_4,
 275         kf_ws_5,
 276         kf_ws_6,
 277         kf_ws_7,
 278         kf_ws_8,
 279         kf_ws_9,
 280         kf_ws_10,
 281         kf_ws_next,
 282         kf_ws_prev,
 283         kf_screen_next,
 284         kf_screen_prev,
 285         kf_mvws_1,
 286         kf_mvws_2,
 287         kf_mvws_3,
 288         kf_mvws_4,
 289         kf_mvws_5,
 290         kf_mvws_6,
 291         kf_mvws_7,
 292         kf_mvws_8,
 293         kf_mvws_9,
 294         kf_mvws_10,
 295         kf_bar_toggle,
 296         kf_wind_kill,
 297         kf_wind_del,
 298         kf_screenshot_all,
 299         kf_screenshot_wind,
 300         kf_float_toggle,
 301         kf_version,
 302         kf_spawn_lock,
 303         kf_spawn_initscr,
 304         kf_spawn_custom,
 305         kf_invalid
 306 };
 307
 308 /* layout handlers */
 309 void    stack(void);
 310 void    vertical_config(struct workspace *, int);
 311 void    vertical_stack(struct workspace *, struct swm_geometry *);
 312 void    horizontal_config(struct workspace *, int);
 313 void    horizontal_stack(struct workspace *, struct swm_geometry *);
 314 void    max_stack(struct workspace *, struct swm_geometry *);
 315
 316 void    grabbuttons(struct ws_win *, int);
 317 void    new_region(struct swm_screen *, int, int, int, int);
 318
 319 struct layout {
 320         void            (*l_stack)(struct workspace *, struct swm_geometry *);
 321         void            (*l_config)(struct workspace *, int);
 322 } layouts[] =  {
 323         /* stack,               configure */
 324         { vertical_stack,       vertical_config},
 325         { horizontal_stack,     horizontal_config},
 326         { max_stack,            NULL},
 327         { NULL,                 NULL},
 328 };
 329
 330 #define SWM_H_SLICE             (32)
 331 #define SWM_V_SLICE             (32)
 332
 333 /* define work spaces */
 334 struct workspace {
 335         int                     idx;            /* workspace index */
 336         int                     restack;        /* restack on switch */
 337         struct layout           *cur_layout;    /* current layout handlers */
 338         struct ws_win           *focus;         /* may be NULL */
 339         struct ws_win           *focus_prev;    /* may be NULL */
 340         struct swm_region       *r;             /* may be NULL */
 341         struct ws_win_list      winlist;        /* list of windows in ws */
 342
 343         /* stacker state */
 344         struct {
 345                                 int horizontal_msize;
 346                                 int horizontal_mwin;
 347                                 int horizontal_stacks;
 348                                 int vertical_msize;
 349                                 int vertical_mwin;
 350                                 int vertical_stacks;
 351         } l_state;
 352 };
 353
 354 enum    { SWM_S_COLOR_BAR, SWM_S_COLOR_BAR_BORDER, SWM_S_COLOR_BAR_FONT,
 355           SWM_S_COLOR_FOCUS, SWM_S_COLOR_UNFOCUS, SWM_S_COLOR_MAX };
 356
 357 /* physical screen mapping */
 358 #define SWM_WS_MAX              (10)            /* XXX Too small? */
 359 struct swm_screen {
 360         int                     idx;            /* screen index */
 361         struct swm_region_list  rl;     /* list of regions on this screen */
 362         struct swm_region_list  orl;    /* list of old regions */
 363         Window                  root;
 364         struct workspace        ws[SWM_WS_MAX];
 365
 366         /* colors */
 367         struct {
 368                 unsigned long   color;
 369                 char            *name;
 370         } c[SWM_S_COLOR_MAX];
 371 };
 372 struct swm_screen       *screens;
 373 int                     num_screens;
 374
 375 /* args to functions */
 376 union arg {
 377         int                     id;
 378 #define SWM_ARG_ID_FOCUSNEXT    (0)
 379 #define SWM_ARG_ID_FOCUSPREV    (1)
 380 #define SWM_ARG_ID_FOCUSMAIN    (2)
 381 #define SWM_ARG_ID_SWAPNEXT     (3)
 382 #define SWM_ARG_ID_SWAPPREV     (4)
 383 #define SWM_ARG_ID_SWAPMAIN     (5)
 384 #define SWM_ARG_ID_MASTERSHRINK (6)
 385 #define SWM_ARG_ID_MASTERGROW   (7)
 386 #define SWM_ARG_ID_MASTERADD    (8)
 387 #define SWM_ARG_ID_MASTERDEL    (9)
 388 #define SWM_ARG_ID_STACKRESET   (10)
 389 #define SWM_ARG_ID_STACKINIT    (11)
 390 #define SWM_ARG_ID_CYCLEWS_UP   (12)
 391 #define SWM_ARG_ID_CYCLEWS_DOWN (13)
 392 #define SWM_ARG_ID_CYCLESC_UP   (14)
 393 #define SWM_ARG_ID_CYCLESC_DOWN (15)
 394 #define SWM_ARG_ID_STACKINC     (16)
 395 #define SWM_ARG_ID_STACKDEC     (17)
 396 #define SWM_ARG_ID_SS_ALL       (0)
 397 #define SWM_ARG_ID_SS_WINDOW    (1)
 398 #define SWM_ARG_ID_DONTCENTER   (0)
 399 #define SWM_ARG_ID_CENTER       (1)
 400 #define SWM_ARG_ID_KILLWINDOW   (0)
 401 #define SWM_ARG_ID_DELETEWINDOW (1)
 402         char                    **argv;
 403 };
 404
 405 /* quirks */
 406 struct quirk {
 407         char                    *class;
 408         char                    *name;
 409         unsigned long           quirk;
 410 #define SWM_Q_FLOAT             (1<<0)  /* float this window */
 411 #define SWM_Q_TRANSSZ           (1<<1)  /* transiend window size too small */
 412 #define SWM_Q_ANYWHERE          (1<<2)  /* don't position this window */
 413 #define SWM_Q_XTERM_FONTADJ     (1<<3)  /* adjust xterm fonts when resizing */
 414 #define SWM_Q_FULLSCREEN        (1<<4)  /* remove border */
 415 };
 416 int                             quirks_size = 0, quirks_length = 0;
 417 struct quirk                    *quirks = NULL;
 418
 419 /* events */
 420 #ifdef SWM_DEBUG
 421 void
 422 dumpevent(XEvent *e)
 423 {
 424         char                    *name = NULL;
 425
 426         switch (e->type) {
 427         case KeyPress:
 428                 name = "KeyPress";
 429                 break;
 430         case KeyRelease:
 431                 name = "KeyRelease";
 432                 break;
 433         case ButtonPress:
 434                 name = "ButtonPress";
 435                 break;
 436         case ButtonRelease:
 437                 name = "ButtonRelease";
 438                 break;
 439         case MotionNotify:
 440                 name = "MotionNotify";
 441                 break;
 442         case EnterNotify:
 443                 name = "EnterNotify";
 444                 break;
 445         case LeaveNotify:
 446                 name = "LeaveNotify";
 447                 break;
 448         case FocusIn:
 449                 name = "FocusIn";
 450                 break;
 451         case FocusOut:
 452                 name = "FocusOut";
 453                 break;
 454         case KeymapNotify:
 455                 name = "KeymapNotify";
 456                 break;
 457         case Expose:
 458                 name = "Expose";
 459                 break;
 460         case GraphicsExpose:
 461                 name = "GraphicsExpose";
 462                 break;
 463         case NoExpose:
 464                 name = "NoExpose";
 465                 break;
 466         case VisibilityNotify:
 467                 name = "VisibilityNotify";
 468                 break;
 469         case CreateNotify:
 470                 name = "CreateNotify";
 471                 break;
 472         case DestroyNotify:
 473                 name = "DestroyNotify";
 474                 break;
 475         case UnmapNotify:
 476                 name = "UnmapNotify";
 477                 break;
 478         case MapNotify:
 479                 name = "MapNotify";
 480                 break;
 481         case MapRequest:
 482                 name = "MapRequest";
 483                 break;
 484         case ReparentNotify:
 485                 name = "ReparentNotify";
 486                 break;
 487         case ConfigureNotify:
 488                 name = "ConfigureNotify";
 489                 break;
 490         case ConfigureRequest:
 491                 name = "ConfigureRequest";
 492                 break;
 493         case GravityNotify:
 494                 name = "GravityNotify";
 495                 break;
 496         case ResizeRequest:
 497                 name = "ResizeRequest";
 498                 break;
 499         case CirculateNotify:
 500                 name = "CirculateNotify";
 501                 break;
 502         case CirculateRequest:
 503                 name = "CirculateRequest";
 504                 break;
 505         case PropertyNotify:
 506                 name = "PropertyNotify";
 507                 break;
 508         case SelectionClear:
 509                 name = "SelectionClear";
 510                 break;
 511         case SelectionRequest:
 512                 name = "SelectionRequest";
 513                 break;
 514         case SelectionNotify:
 515                 name = "SelectionNotify";
 516                 break;
 517         case ColormapNotify:
 518                 name = "ColormapNotify";
 519                 break;
 520         case ClientMessage:
 521                 name = "ClientMessage";
 522                 break;
 523         case MappingNotify:
 524                 name = "MappingNotify";
 525                 break;
 526         }
 527
 528         if (name)
 529                 DNPRINTF(SWM_D_EVENTQ ,"window: %lu event: %s (%d), %d "
 530                     "remaining\n",
 531                     e->xany.window, name, e->type, QLength(display));
 532         else
 533                 DNPRINTF(SWM_D_EVENTQ, "window: %lu unknown event %d, %d "
 534                     "remaining\n",
 535                     e->xany.window, e->type, QLength(display));
 536 }
 537 #else
 538 #define dumpevent(e)
 539 #endif /* SWM_DEBUG */
 540
 541 void                    expose(XEvent *);
 542 void                    keypress(XEvent *);
 543 void                    buttonpress(XEvent *);
 544 void                    configurerequest(XEvent *);
 545 void                    configurenotify(XEvent *);
 546 void                    destroynotify(XEvent *);
 547 void                    enternotify(XEvent *);
 548 void                    focusin(XEvent *);
 549 void                    focusout(XEvent *);
 550 void                    mappingnotify(XEvent *);
 551 void                    maprequest(XEvent *);
 552 void                    propertynotify(XEvent *);
 553 void                    unmapnotify(XEvent *);
 554 void                    visibilitynotify(XEvent *);
 555
 556 void                    (*handler[LASTEvent])(XEvent *) = {
 557                                 [Expose] = expose,
 558                                 [KeyPress] = keypress,
 559                                 [ButtonPress] = buttonpress,
 560                                 [ConfigureRequest] = configurerequest,
 561                                 [ConfigureNotify] = configurenotify,
 562                                 [DestroyNotify] = destroynotify,
 563                                 [EnterNotify] = enternotify,
 564                                 [FocusIn] = focusin,
 565                                 [FocusOut] = focusout,
 566                                 [MappingNotify] = mappingnotify,
 567                                 [MapRequest] = maprequest,
 568                                 [PropertyNotify] = propertynotify,
 569                                 [UnmapNotify] = unmapnotify,
 570                                 [VisibilityNotify] = visibilitynotify,
 571 };
 572
 573 void
 574 sighdlr(int sig)
 575 {
 576         pid_t                   pid;
 577
 578         switch (sig) {
 579         case SIGCHLD:
 580                 while ((pid = waitpid(WAIT_ANY, NULL, WNOHANG)) != -1) {
 581                         DNPRINTF(SWM_D_MISC, stderr, "reaping: %d\n", pid);
 582                         if (pid <= 0)
 583                                 break;
 584                 }
 585                 break;
 586         case SIGINT:
 587         case SIGTERM:
 588         case SIGHUP:
 589         case SIGQUIT:
 590                 running = 0;
 591                 break;
 592         }
 593 }
 594
 595 void
 596 installsignal(int sig, char *name)
 597 {
 598         struct sigaction        sa;
 599
 600         sa.sa_handler = sighdlr;
 601         sigemptyset(&sa.sa_mask);
 602         sa.sa_flags = 0;
 603         if (sigaction(sig, &sa, NULL) == -1)
 604                 err(1, "could not install %s handler", name);
 605 }
 606
 607 unsigned long
 608 name_to_color(char *colorname)
 609 {
 610         Colormap                cmap;
 611         Status                  status;
 612         XColor                  screen_def, exact_def;
 613         unsigned long           result = 0;
 614         char                    cname[32] = "#";
 615
 616         cmap = DefaultColormap(display, screens[0].idx);
 617         status = XAllocNamedColor(display, cmap, colorname,
 618             &screen_def, &exact_def);
 619         if (!status) {
 620                 strlcat(cname, colorname + 2, sizeof cname - 1);
 621                 status = XAllocNamedColor(display, cmap, cname, &screen_def,
 622                     &exact_def);
 623         }
 624         if (status)
 625                 result = screen_def.pixel;
 626         else
 627                 fprintf(stderr, "color '%s' not found.\n", colorname);
 628
 629         return (result);
 630 }
 631
 632 void
 633 setscreencolor(char *val, int i, int c)
 634 {
 635         if (i > 0 && i <= ScreenCount(display)) {
 636                 screens[i - 1].c[c].color = name_to_color(val);
 637                 free(screens[i - 1].c[c].name);
 638                 if ((screens[i - 1].c[c].name = strdup(val)) == NULL)
 639                         errx(1, "strdup");
 640         } else if (i == -1) {
 641                 for (i = 0; i < ScreenCount(display); i++) {
 642                         screens[i].c[c].color = name_to_color(val);
 643                         free(screens[i].c[c].name);
 644                         if ((screens[i].c[c].name = strdup(val)) == NULL)
 645                                 errx(1, "strdup");
 646                 }
 647         } else
 648                 errx(1, "invalid screen index: %d out of bounds (maximum %d)\n",
 649                     i, ScreenCount(display));
 650 }
 651
 652 void
 653 custom_region(char *val)
 654 {
 655         unsigned int                    sidx, x, y, w, h;
 656
 657         if (sscanf(val, "screen[%u]:%ux%u+%u+%u", &sidx, &w, &h, &x, &y) != 5)
 658                 errx(1, "invalid custom region, "
 659                     "should be 'screen[<n>]:<n>x<n>+<n>+<n>\n");
 660         if (sidx < 1 || sidx > ScreenCount(display))
 661                 errx(1, "invalid screen index: %d out of bounds (maximum %d)\n",
 662                     sidx, ScreenCount(display));
 663         sidx--;
 664
 665         if (w < 1 || h < 1)
 666                 errx(1, "region %ux%u+%u+%u too small\n", w, h, x, y);
 667
 668         if (x  < 0 || x > DisplayWidth(display, sidx) ||
 669             y < 0 || y > DisplayHeight(display, sidx) ||
 670             w + x > DisplayWidth(display, sidx) ||
 671             h + y > DisplayHeight(display, sidx))
 672                 errx(1, "region %ux%u+%u+%u not within screen boundaries "
 673                     "(%ux%u)\n", w, h, x, y,
 674                     DisplayWidth(display, sidx), DisplayHeight(display, sidx));
 675
 676         new_region(&screens[sidx], x, y, w, h);
 677 }
 678
 679 void
 680 socket_setnonblock(int fd)
 681 {
 682         int                     flags;
 683
 684         if ((flags = fcntl(fd, F_GETFL, 0)) == -1)
 685                 err(1, "fcntl F_GETFL");
 686         flags |= O_NONBLOCK;
 687         if ((flags = fcntl(fd, F_SETFL, flags)) == -1)
 688                 err(1, "fcntl F_SETFL");
 689 }
 690
 691 void
 692 bar_print(struct swm_region *r, char *s)
 693 {
 694         XClearWindow(display, r->bar_window);
 695         XSetForeground(display, bar_gc, r->s->c[SWM_S_COLOR_BAR_FONT].color);
 696         XDrawString(display, r->bar_window, bar_gc, 4, bar_fs->ascent, s,
 697             strlen(s));
 698 }
 699
 700 void
 701 bar_extra_stop(void)
 702 {
 703         if (bar_pipe[0]) {
 704                 close(bar_pipe[0]);
 705                 bzero(bar_pipe, sizeof bar_pipe);
 706         }
 707         if (bar_pid) {
 708                 kill(bar_pid, SIGTERM);
 709                 bar_pid = 0;
 710         }
 711         strlcpy(bar_ext, "", sizeof bar_ext);
 712         bar_extra = 0;
 713 }
 714
 715 void
 716 bar_class_name(char *s, ssize_t sz, struct ws_win *cur_focus)
 717 {
 718         int                     do_class, do_name;
 719         Status                  status;
 720         XClassHint              *xch = NULL;
 721
 722         if ((title_name_enabled == 1 || title_class_enabled == 1) &&
 723             cur_focus != NULL) {
 724                 if ((xch = XAllocClassHint()) == NULL)
 725                         goto out;
 726                 status = XGetClassHint(display, cur_focus->id, xch);
 727                 if (status == BadWindow || status == BadAlloc)
 728                         goto out;
 729                 do_class = (title_class_enabled && xch->res_class != NULL);
 730                 do_name = (title_name_enabled && xch->res_name != NULL);
 731                 if (do_class)
 732                         strlcat(s, xch->res_class, sz);
 733                 if (do_class && do_name)
 734                         strlcat(s, ":", sz);
 735                 if (do_name)
 736                         strlcat(s, xch->res_name, sz);
 737                 strlcat(s, "    ", sz);
 738         }
 739 out:
 740         if (xch)
 741                 XFree(xch);
 742 }
 743
 744 void
 745 bar_update(void)
 746 {
 747         time_t                  tmt;
 748         struct tm               tm;
 749         struct swm_region       *r;
 750         int                     i, x;
 751         size_t                  len;
 752         char                    s[SWM_BAR_MAX];
 753         char                    loc[SWM_BAR_MAX];
 754         char                    *b;
 755
 756         if (bar_enabled == 0)
 757                 return;
 758         if (bar_extra && bar_extra_running) {
 759                 /* ignore short reads; it'll correct itself */
 760                 while ((b = fgetln(stdin, &len)) != NULL)
 761                         if (b && b[len - 1] == '\n') {
 762                                 b[len - 1] = '\0';
 763                                 strlcpy(bar_ext, b, sizeof bar_ext);
 764                         }
 765                 if (b == NULL && errno != EAGAIN) {
 766                         fprintf(stderr, "bar_extra failed: errno: %d %s\n",
 767                             errno, strerror(errno));
 768                         bar_extra_stop();
 769                 }
 770         } else
 771                 strlcpy(bar_ext, "", sizeof bar_ext);
 772
 773         if (clock_enabled == 0)
 774                 strlcpy(s, "", sizeof s);
 775         else {
 776                 time(&tmt);
 777                 localtime_r(&tmt, &tm);
 778                 strftime(s, sizeof s, "%a %b %d %R %Z %Y    ", &tm);
 779         }
 780
 781         for (i = 0; i < ScreenCount(display); i++) {
 782                 x = 1;
 783                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
 784                         if (r && r->ws)
 785                                 bar_class_name(s, sizeof s, r->ws->focus);
 786
 787                         snprintf(loc, sizeof loc, "%d:%d    %s %s    %s",
 788                             x++, r->ws->idx + 1, s, bar_ext, bar_vertext);
 789                         bar_print(r, loc);
 790                 }
 791         }
 792         XSync(display, False);
 793         alarm(bar_delay);
 794 }
 795
 796 void
 797 bar_signal(int sig)
 798 {
 799         bar_alarm = 1;
 800 }
 801
 802 void
 803 bar_toggle(struct swm_region *r, union arg *args)
 804 {
 805         struct swm_region       *tmpr;
 806         int                     i, j, sc = ScreenCount(display);
 807
 808         DNPRINTF(SWM_D_MISC, "bar_toggle\n");
 809
 810         if (bar_enabled)
 811                 for (i = 0; i < sc; i++)
 812                         TAILQ_FOREACH(tmpr, &screens[i].rl, entry)
 813                                 XUnmapWindow(display, tmpr->bar_window);
 814         else
 815                 for (i = 0; i < sc; i++)
 816                         TAILQ_FOREACH(tmpr, &screens[i].rl, entry)
 817                                 XMapRaised(display, tmpr->bar_window);
 818
 819         bar_enabled = !bar_enabled;
 820         for (i = 0; i < sc; i++)
 821                 for (j = 0; j < SWM_WS_MAX; j++)
 822                         screens[i].ws[j].restack = 1;
 823
 824         stack();
 825         /* must be after stack */
 826         bar_update();
 827 }
 828
 829 void
 830 bar_refresh(void)
 831 {
 832         XSetWindowAttributes    wa;
 833         struct swm_region       *r;
 834         int                     i;
 835
 836         /* do this here because the conf file is in memory */
 837         if (bar_extra && bar_extra_running == 0 && bar_argv[0]) {
 838                 /* launch external status app */
 839                 bar_extra_running = 1;
 840                 if (pipe(bar_pipe) == -1)
 841                         err(1, "pipe error");
 842                 socket_setnonblock(bar_pipe[0]);
 843                 socket_setnonblock(bar_pipe[1]); /* XXX hmmm, really? */
 844                 if (dup2(bar_pipe[0], 0) == -1)
 845                         errx(1, "dup2");
 846                 if (dup2(bar_pipe[1], 1) == -1)
 847                         errx(1, "dup2");
 848                 if (signal(SIGPIPE, SIG_IGN) == SIG_ERR)
 849                         err(1, "could not disable SIGPIPE");
 850                 switch (bar_pid = fork()) {
 851                 case -1:
 852                         err(1, "cannot fork");
 853                         break;
 854                 case 0: /* child */
 855                         close(bar_pipe[0]);
 856                         execvp(bar_argv[0], bar_argv);
 857                         err(1, "%s external app failed", bar_argv[0]);
 858                         break;
 859                 default: /* parent */
 860                         close(bar_pipe[1]);
 861                         break;
 862                 }
 863         }
 864
 865         bzero(&wa, sizeof wa);
 866         for (i = 0; i < ScreenCount(display); i++)
 867                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
 868                         wa.border_pixel =
 869                             screens[i].c[SWM_S_COLOR_BAR_BORDER].color;
 870                         wa.background_pixel =
 871                             screens[i].c[SWM_S_COLOR_BAR].color;
 872                         XChangeWindowAttributes(display, r->bar_window,
 873                             CWBackPixel | CWBorderPixel, &wa);
 874                 }
 875         bar_update();
 876 }
 877
 878 void
 879 bar_setup(struct swm_region *r)
 880 {
 881         int                     i;
 882
 883         for (i = 0; bar_fonts[i] != NULL; i++) {
 884                 bar_fs = XLoadQueryFont(display, bar_fonts[i]);
 885                 if (bar_fs) {
 886                         bar_fidx = i;
 887                         break;
 888                 }
 889         }
 890         if (bar_fonts[i] == NULL)
 891                         errx(1, "couldn't load font");
 892         bar_height = bar_fs->ascent + bar_fs->descent + 3;
 893
 894         r->bar_window = XCreateSimpleWindow(display,
 895             r->s->root, X(r), Y(r), WIDTH(r) - 2, bar_height - 2,
 896             1, r->s->c[SWM_S_COLOR_BAR_BORDER].color,
 897             r->s->c[SWM_S_COLOR_BAR].color);
 898         bar_gc = XCreateGC(display, r->bar_window, 0, &bar_gcv);
 899         XSetFont(display, bar_gc, bar_fs->fid);
 900         XSelectInput(display, r->bar_window, VisibilityChangeMask);
 901         if (bar_enabled)
 902                 XMapRaised(display, r->bar_window);
 903         DNPRINTF(SWM_D_MISC, "bar_setup: bar_window %lu\n", r->bar_window);
 904
 905         if (signal(SIGALRM, bar_signal) == SIG_ERR)
 906                 err(1, "could not install bar_signal");
 907         bar_refresh();
 908 }
 909
 910 void
 911 version(struct swm_region *r, union arg *args)
 912 {
 913         bar_version = !bar_version;
 914         if (bar_version)
 915                 snprintf(bar_vertext, sizeof bar_vertext, "Version: %s CVS: %s",
 916                     SWM_VERSION, cvstag);
 917         else
 918                 strlcpy(bar_vertext, "", sizeof bar_vertext);
 919         bar_update();
 920 }
 921
 922 void
 923 client_msg(struct ws_win *win, Atom a)
 924 {
 925         XClientMessageEvent     cm;
 926
 927         bzero(&cm, sizeof cm);
 928         cm.type = ClientMessage;
 929         cm.window = win->id;
 930         cm.message_type = aprot;
 931         cm.format = 32;
 932         cm.data.l[0] = a;
 933         cm.data.l[1] = CurrentTime;
 934         XSendEvent(display, win->id, False, 0L, (XEvent *)&cm);
 935 }
 936
 937 void
 938 config_win(struct ws_win *win)
 939 {
 940         XConfigureEvent         ce;
 941
 942         DNPRINTF(SWM_D_MISC, "config_win: win %lu x %d y %d w %d h %d\n",
 943             win->id, win->g.x, win->g.y, win->g.w, win->g.h);
 944         ce.type = ConfigureNotify;
 945         ce.display = display;
 946         ce.event = win->id;
 947         ce.window = win->id;
 948         ce.x = win->g.x;
 949         ce.y = win->g.y;
 950         ce.width = win->g.w;
 951         ce.height = win->g.h;
 952         ce.border_width = 1; /* XXX store this! */
 953         ce.above = None;
 954         ce.override_redirect = False;
 955         XSendEvent(display, win->id, False, StructureNotifyMask, (XEvent *)&ce);
 956 }
 957
 958 int
 959 count_win(struct workspace *ws, int count_transient)
 960 {
 961         struct ws_win           *win;
 962         int                     count = 0;
 963
 964         TAILQ_FOREACH(win, &ws->winlist, entry) {
 965                 if (count_transient == 0 && win->floating)
 966                         continue;
 967                 if (count_transient == 0 && win->transient)
 968                         continue;
 969                 count++;
 970         }
 971         DNPRINTF(SWM_D_MISC, "count_win: %d\n", count);
 972
 973         return (count);
 974 }
 975
 976 void
 977 quit(struct swm_region *r, union arg *args)
 978 {
 979         DNPRINTF(SWM_D_MISC, "quit\n");
 980         running = 0;
 981 }
 982
 983 void
 984 unmap_all(void)
 985 {
 986         struct ws_win           *win;
 987         int                     i, j;
 988
 989         for (i = 0; i < ScreenCount(display); i++)
 990                 for (j = 0; j < SWM_WS_MAX; j++)
 991                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
 992                                 XUnmapWindow(display, win->id);
 993 }
 994
 995 void
 996 fake_keypress(struct ws_win *win, int keysym, int modifiers)
 997 {
 998         XKeyEvent event;
 999
1000         event.display = display;        /* Ignored, but what the hell */
1001         event.window = win->id;
1002         event.root = win->s->root;
1003         event.subwindow = None;
1004         event.time = CurrentTime;
1005         event.x = win->g.x;
1006         event.y = win->g.y;
1007         event.x_root = 1;
1008         event.y_root = 1;
1009         event.same_screen = True;
1010         event.keycode = XKeysymToKeycode(display, keysym);
1011         event.state = modifiers;
1012
1013         event.type = KeyPress;
1014         XSendEvent(event.display, event.window, True,
1015             KeyPressMask, (XEvent *)&event);
1016
1017         event.type = KeyRelease;
1018         XSendEvent(event.display, event.window, True,
1019             KeyPressMask, (XEvent *)&event);
1020
1021 }
1022
1023 void
1024 restart(struct swm_region *r, union arg *args)
1025 {
1026         DNPRINTF(SWM_D_MISC, "restart: %s\n", start_argv[0]);
1027
1028         /* disable alarm because the following code may not be interrupted */
1029         alarm(0);
1030         if (signal(SIGALRM, SIG_IGN) == SIG_ERR)
1031                 errx(1, "can't disable alarm");
1032
1033         bar_extra_stop();
1034         bar_extra = 1;
1035         unmap_all();
1036         XCloseDisplay(display);
1037         execvp(start_argv[0], start_argv);
1038         fprintf(stderr, "execvp failed\n");
1039         perror(" failed");
1040         quit(NULL, NULL);
1041 }
1042
1043 struct swm_region *
1044 root_to_region(Window root)
1045 {
1046         struct swm_region       *r = NULL;
1047         Window                  rr, cr;
1048         int                     i, x, y, wx, wy;
1049         unsigned int            mask;
1050
1051         for (i = 0; i < ScreenCount(display); i++)
1052                 if (screens[i].root == root)
1053                         break;
1054
1055         if (XQueryPointer(display, screens[i].root,
1056             &rr, &cr, &x, &y, &wx, &wy, &mask) != False) {
1057                 /* choose a region based on pointer location */
1058                 TAILQ_FOREACH(r, &screens[i].rl, entry)
1059                         if (x >= X(r) && x <= X(r) + WIDTH(r) &&
1060                             y >= Y(r) && y <= Y(r) + HEIGHT(r))
1061                                 break;
1062         }
1063
1064         if (r == NULL)
1065                 r = TAILQ_FIRST(&screens[i].rl);
1066
1067         return (r);
1068 }
1069
1070 struct ws_win *
1071 find_window(Window id)
1072 {
1073         struct ws_win           *win;
1074         int                     i, j;
1075
1076         for (i = 0; i < ScreenCount(display); i++)
1077                 for (j = 0; j < SWM_WS_MAX; j++)
1078                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
1079                                 if (id == win->id)
1080                                         return (win);
1081         return (NULL);
1082 }
1083
1084 void
1085 spawn(struct swm_region *r, union arg *args)
1086 {
1087         char                    *ret;
1088         int                     si;
1089
1090         DNPRINTF(SWM_D_MISC, "spawn: %s\n", args->argv[0]);
1091         /*
1092          * The double-fork construct avoids zombie processes and keeps the code
1093          * clean from stupid signal handlers.
1094          */
1095         if (fork() == 0) {
1096                 if (fork() == 0) {
1097                         if (display)
1098                                 close(ConnectionNumber(display));
1099                         setenv("LD_PRELOAD", SWM_LIB, 1);
1100                         if (asprintf(&ret, "%d", r->ws->idx)) {
1101                                 setenv("_SWM_WS", ret, 1);
1102                                 free(ret);
1103                         }
1104                         if (asprintf(&ret, "%d", getpid())) {
1105                                 setenv("_SWM_PID", ret, 1);
1106                                 free(ret);
1107                         }
1108                         setsid();
1109                         /* kill stdin, mplayer, ssh-add etc. need that */
1110                         si = open("/dev/null", O_RDONLY, 0);
1111                         if (si == -1)
1112                                 err(1, "open /dev/null");
1113                         if (dup2(si, 0) == -1)
1114                                 err(1, "dup2 /dev/null");
1115                         execvp(args->argv[0], args->argv);
1116                         fprintf(stderr, "execvp failed\n");
1117                         perror(" failed");
1118                 }
1119                 exit(0);
1120         }
1121         wait(0);
1122 }
1123
1124 void
1125 spawnterm(struct swm_region *r, union arg *args)
1126 {
1127         DNPRINTF(SWM_D_MISC, "spawnterm\n");
1128
1129         if (term_width)
1130                 setenv("_SWM_XTERM_FONTADJ", "", 1);
1131         spawn(r, args);
1132 }
1133
1134 void
1135 unfocus_win(struct ws_win *win)
1136 {
1137         if (win == NULL)
1138                 return;
1139
1140         if (win->ws->focus != win && win->ws->focus != NULL)
1141                 win->ws->focus_prev = win->ws->focus;
1142
1143         if (win->ws->r == NULL)
1144                 return;
1145
1146         grabbuttons(win, 0);
1147         XSetWindowBorder(display, win->id,
1148             win->ws->r->s->c[SWM_S_COLOR_UNFOCUS].color);
1149         win->got_focus = 0;
1150
1151         if (win->ws->focus == win)
1152                 win->ws->focus = NULL;
1153 }
1154
1155 void
1156 unfocus_all(void)
1157 {
1158         struct ws_win           *win;
1159         int                     i, j;
1160
1161         DNPRINTF(SWM_D_FOCUS, "unfocus_all:\n");
1162
1163         for (i = 0; i < ScreenCount(display); i++)
1164                 for (j = 0; j < SWM_WS_MAX; j++)
1165                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
1166                                 unfocus_win(win);
1167 }
1168
1169 void
1170 focus_win(struct ws_win *win)
1171 {
1172         DNPRINTF(SWM_D_FOCUS, "focus_win: id: %lu\n", win ? win->id : 0);
1173
1174         if (win == NULL)
1175                 return;
1176
1177         if (win->ws->focus)
1178                 unfocus_win(win->ws->focus);
1179         if (win->ws->focus) {
1180                 /* probably shouldn't happen due to the previous unfocus_win */
1181                 DNPRINTF(SWM_D_FOCUS, "unfocusing win->ws->focus: %lu\n",
1182                     win->ws->focus->id);
1183                 unfocus_win(win->ws->focus);
1184         }
1185         win->ws->focus = win;
1186         if (win->ws->r != NULL) {
1187                 if (win->got_focus == 0) {
1188                         XSetWindowBorder(display, win->id,
1189                             win->ws->r->s->c[SWM_S_COLOR_FOCUS].color);
1190                         grabbuttons(win, 1);
1191                 }
1192                 win->got_focus = 1;
1193                 XSetInputFocus(display, win->id,
1194                     RevertToPointerRoot, CurrentTime);
1195         }
1196 }
1197
1198 void
1199 switchws(struct swm_region *r, union arg *args)
1200 {
1201         int                     wsid = args->id;
1202         struct swm_region       *this_r, *other_r;
1203         struct ws_win           *win, *winfocus;
1204         struct workspace        *new_ws, *old_ws;
1205
1206         this_r = r;
1207         old_ws = this_r->ws;
1208         new_ws = &this_r->s->ws[wsid];
1209
1210         DNPRINTF(SWM_D_WS, "switchws screen[%d]:%dx%d+%d+%d: "
1211             "%d -> %d\n", r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r),
1212             old_ws->idx, wsid);
1213
1214         if (new_ws == old_ws)
1215                 return;
1216
1217         other_r = new_ws->r;
1218         if (!other_r) {
1219                 /* if the other workspace is hidden, switch windows */
1220                 /* map new window first to prevent ugly blinking */
1221                 old_ws->r = NULL;
1222                 old_ws->restack = 1;
1223
1224                 TAILQ_FOREACH(win, &new_ws->winlist, entry)
1225                         XMapRaised(display, win->id);
1226
1227                 TAILQ_FOREACH(win, &old_ws->winlist, entry)
1228                         XUnmapWindow(display, win->id);
1229         } else {
1230                 other_r->ws = old_ws;
1231                 old_ws->r = other_r;
1232         }
1233         this_r->ws = new_ws;
1234         new_ws->r = this_r;
1235
1236         /* get focus window */
1237         if (new_ws->focus == NULL)
1238                 winfocus = TAILQ_FIRST(&new_ws->winlist);
1239         else
1240                 winfocus = new_ws->focus;
1241
1242         ignore_enter = 1;
1243         stack();
1244         unfocus_all(); /* we need this after a M-q */
1245         focus_win(winfocus);
1246         bar_update();
1247 }
1248
1249 void
1250 cyclews(struct swm_region *r, union arg *args)
1251 {
1252         union                   arg a;
1253         struct swm_screen       *s = r->s;
1254
1255         DNPRINTF(SWM_D_WS, "cyclews id %d "
1256             "in screen[%d]:%dx%d+%d+%d ws %d\n", args->id,
1257             r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
1258
1259         a.id = r->ws->idx;
1260         do {
1261                 switch (args->id) {
1262                 case SWM_ARG_ID_CYCLEWS_UP:
1263                         if (a.id < SWM_WS_MAX - 1)
1264                                 a.id++;
1265                         else
1266                                 a.id = 0;
1267                         break;
1268                 case SWM_ARG_ID_CYCLEWS_DOWN:
1269                         if (a.id > 0)
1270                                 a.id--;
1271                         else
1272                                 a.id = SWM_WS_MAX - 1;
1273                         break;
1274                 default:
1275                         return;
1276                 };
1277
1278                 if (cycle_empty == 0 && TAILQ_EMPTY(&s->ws[a.id].winlist))
1279                         continue;
1280                 if (cycle_visible == 0 && s->ws[a.id].r != NULL)
1281                         continue;
1282
1283                 switchws(r, &a);
1284         } while (a.id != r->ws->idx);
1285 }
1286
1287 void
1288 cyclescr(struct swm_region *r, union arg *args)
1289 {
1290         struct swm_region       *rr;
1291         int                     i;
1292
1293         i = r->s->idx;
1294         switch (args->id) {
1295         case SWM_ARG_ID_CYCLESC_UP:
1296                 rr = TAILQ_NEXT(r, entry);
1297                 if (rr == NULL)
1298                         rr = TAILQ_FIRST(&screens[i].rl);
1299                 break;
1300         case SWM_ARG_ID_CYCLESC_DOWN:
1301                 rr = TAILQ_PREV(r, swm_region_list, entry);
1302                 if (rr == NULL)
1303                         rr = TAILQ_LAST(&screens[i].rl, swm_region_list);
1304                 break;
1305         default:
1306                 return;
1307         };
1308         unfocus_all();
1309         XSetInputFocus(display, PointerRoot, RevertToPointerRoot, CurrentTime);
1310         XWarpPointer(display, None, rr->s[i].root, 0, 0, 0, 0, rr->g.x,
1311             rr->g.y + bar_enabled ? bar_height : 0);
1312 }
1313
1314 void
1315 swapwin(struct swm_region *r, union arg *args)
1316 {
1317         struct ws_win           *target, *source;
1318         struct ws_win           *cur_focus;
1319         struct ws_win_list      *wl;
1320
1321
1322         DNPRINTF(SWM_D_WS, "swapwin id %d "
1323             "in screen %d region %dx%d+%d+%d ws %d\n", args->id,
1324             r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
1325
1326         cur_focus = r->ws->focus;
1327         if (cur_focus == NULL)
1328                 return;
1329
1330         source = cur_focus;
1331         wl = &source->ws->winlist;
1332
1333         switch (args->id) {
1334         case SWM_ARG_ID_SWAPPREV:
1335                 target = TAILQ_PREV(source, ws_win_list, entry);
1336                 TAILQ_REMOVE(wl, cur_focus, entry);
1337                 if (target == NULL)
1338                         TAILQ_INSERT_TAIL(wl, source, entry);
1339                 else
1340                         TAILQ_INSERT_BEFORE(target, source, entry);
1341                 break;
1342         case SWM_ARG_ID_SWAPNEXT:
1343                 target = TAILQ_NEXT(source, entry);
1344                 TAILQ_REMOVE(wl, source, entry);
1345                 if (target == NULL)
1346                         TAILQ_INSERT_HEAD(wl, source, entry);
1347                 else
1348                         TAILQ_INSERT_AFTER(wl, target, source, entry);
1349                 break;
1350         case SWM_ARG_ID_SWAPMAIN:
1351                 target = TAILQ_FIRST(wl);
1352                 if (target == source) {
1353                         if (source->ws->focus_prev != NULL &&
1354                             source->ws->focus_prev != target)
1355
1356                                 source = source->ws->focus_prev;
1357                         else
1358                                 return;
1359                 }
1360                 source->ws->focus_prev = target;
1361                 TAILQ_REMOVE(wl, target, entry);
1362                 TAILQ_INSERT_BEFORE(source, target, entry);
1363                 TAILQ_REMOVE(wl, source, entry);
1364                 TAILQ_INSERT_HEAD(wl, source, entry);
1365                 break;
1366         default:
1367                 DNPRINTF(SWM_D_MOVE, "invalid id: %d\n", args->id);
1368                 return;
1369         }
1370
1371         ignore_enter = 1;
1372         stack();
1373 }
1374
1375 void
1376 focus(struct swm_region *r, union arg *args)
1377 {
1378         struct ws_win           *winfocus, *winlostfocus;
1379         struct ws_win_list      *wl;
1380         struct ws_win           *cur_focus;
1381
1382         DNPRINTF(SWM_D_FOCUS, "focus: id %d\n", args->id);
1383
1384         cur_focus = r->ws->focus;
1385         if (cur_focus == NULL)
1386                 return;
1387
1388         wl = &cur_focus->ws->winlist;
1389
1390         winlostfocus = cur_focus;
1391
1392         switch (args->id) {
1393         case SWM_ARG_ID_FOCUSPREV:
1394                 winfocus = TAILQ_PREV(cur_focus, ws_win_list, entry);
1395                 if (winfocus == NULL)
1396                         winfocus = TAILQ_LAST(wl, ws_win_list);
1397                 break;
1398
1399         case SWM_ARG_ID_FOCUSNEXT:
1400                 winfocus = TAILQ_NEXT(cur_focus, entry);
1401                 if (winfocus == NULL)
1402                         winfocus = TAILQ_FIRST(wl);
1403                 break;
1404
1405         case SWM_ARG_ID_FOCUSMAIN:
1406                 winfocus = TAILQ_FIRST(wl);
1407                 if (winfocus == cur_focus)
1408                         winfocus = cur_focus->ws->focus_prev;
1409                 if (winfocus == NULL)
1410                         return;
1411                 break;
1412
1413         default:
1414                 return;
1415         }
1416
1417         if (winfocus == winlostfocus || winfocus == NULL)
1418                 return;
1419
1420         XMapRaised(display, winfocus->id);
1421         focus_win(winfocus);
1422         XSync(display, False);
1423 }
1424
1425 void
1426 cycle_layout(struct swm_region *r, union arg *args)
1427 {
1428         struct workspace        *ws = r->ws;
1429
1430         DNPRINTF(SWM_D_EVENT, "cycle_layout: workspace: %d\n", ws->idx);
1431
1432         ws->cur_layout++;
1433         if (ws->cur_layout->l_stack == NULL)
1434                 ws->cur_layout = &layouts[0];
1435         ignore_enter = 1;
1436         stack();
1437 }
1438
1439 void
1440 stack_config(struct swm_region *r, union arg *args)
1441 {
1442         struct workspace        *ws = r->ws;
1443
1444         DNPRINTF(SWM_D_STACK, "stack_config for workspace %d (id %d\n",
1445             args->id, ws->idx);
1446
1447         if (ws->cur_layout->l_config != NULL)
1448                 ws->cur_layout->l_config(ws, args->id);
1449
1450         if (args->id != SWM_ARG_ID_STACKINIT);
1451                 stack();
1452 }
1453
1454 void
1455 stack(void) {
1456         struct swm_geometry     g;
1457         struct swm_region       *r;
1458         int                     i, j;
1459
1460         DNPRINTF(SWM_D_STACK, "stack\n");
1461
1462         for (i = 0; i < ScreenCount(display); i++) {
1463                 j = 0;
1464                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
1465                         DNPRINTF(SWM_D_STACK, "stacking workspace %d "
1466                             "(screen %d, region %d)\n", r->ws->idx, i, j++);
1467
1468                         /* start with screen geometry, adjust for bar */
1469                         g = r->g;
1470                         g.w -= 2;
1471                         g.h -= 2;
1472                         if (bar_enabled) {
1473                                 g.y += bar_height;
1474                                 g.h -= bar_height;
1475                         }
1476
1477                         r->ws->restack = 0;
1478                         r->ws->cur_layout->l_stack(r->ws, &g);
1479                 }
1480         }
1481         if (font_adjusted)
1482                 font_adjusted--;
1483         XSync(display, False);
1484 }
1485
1486 void
1487 stack_floater(struct ws_win *win, struct swm_region *r)
1488 {
1489         unsigned int            mask;
1490         XWindowChanges          wc;
1491
1492         bzero(&wc, sizeof wc);
1493         mask = CWX | CWY | CWBorderWidth | CWWidth | CWHeight;
1494         if ((win->quirks & SWM_Q_FULLSCREEN) && (win->g.w == WIDTH(r)) &&
1495             (win->g.h == HEIGHT(r)))
1496                 wc.border_width = 0;
1497         else
1498                 wc.border_width = 1;
1499         if (win->transient && (win->quirks & SWM_Q_TRANSSZ)) {
1500                 win->g.w = (double)WIDTH(r) * dialog_ratio;
1501                 win->g.h = (double)HEIGHT(r) * dialog_ratio;
1502         }
1503         wc.width = win->g.w;
1504         wc.height = win->g.h;
1505         if (win->manual) {
1506                 wc.x = win->g.x;
1507                 wc.y = win->g.y;
1508         } else {
1509                 wc.x = (WIDTH(r) - win->g.w) / 2;
1510                 wc.y = (HEIGHT(r) - win->g.h) / 2;
1511         }
1512
1513         DNPRINTF(SWM_D_STACK, "stack_floater: win %lu x %d y %d w %d h %d\n",
1514             win->id, wc.x, wc.y, wc.width, wc.height);
1515
1516         XConfigureWindow(display, win->id, mask, &wc);
1517 }
1518
1519 /*
1520  * Send keystrokes to terminal to decrease/increase the font size as the
1521  * window size changes.
1522  */
1523 void
1524 adjust_font(struct ws_win *win)
1525 {
1526         if (!(win->quirks & SWM_Q_XTERM_FONTADJ) ||
1527             win->floating || win->transient)
1528                 return;
1529
1530         if (win->sh.width_inc && win->last_inc != win->sh.width_inc &&
1531             win->g.w / win->sh.width_inc < term_width &&
1532             win->font_steps < SWM_MAX_FONT_STEPS) {
1533                 win->font_size_boundary[win->font_steps] =
1534                     (win->sh.width_inc * term_width) + win->sh.base_width;
1535                 win->font_steps++;
1536                 font_adjusted++;
1537                 win->last_inc = win->sh.width_inc;
1538                 fake_keypress(win, XK_KP_Subtract, ShiftMask);
1539         } else if (win->font_steps && win->last_inc != win->sh.width_inc &&
1540             win->g.w > win->font_size_boundary[win->font_steps - 1]) {
1541                 win->font_steps--;
1542                 font_adjusted++;
1543                 win->last_inc = win->sh.width_inc;
1544                 fake_keypress(win, XK_KP_Add, ShiftMask);
1545         }
1546 }
1547
1548 #define SWAPXY(g)       do {                            \
1549         int tmp;                                        \
1550         tmp = (g)->y; (g)->y = (g)->x; (g)->x = tmp;    \
1551         tmp = (g)->h; (g)->h = (g)->w; (g)->w = tmp;    \
1552 } while (0)
1553 void
1554 stack_master(struct workspace *ws, struct swm_geometry *g, int rot, int flip)
1555 {
1556         XWindowChanges          wc;
1557         struct swm_geometry     win_g, r_g = *g;
1558         struct ws_win           *win;
1559         int                     i, j, s, stacks;
1560         int                     w_inc = 1, h_inc, w_base = 1, h_base;
1561         int                     hrh, extra = 0, h_slice, last_h = 0;
1562         int                     split, colno, winno, mwin, msize, mscale;
1563         int                     remain, missing, v_slice;
1564         unsigned int            mask;
1565
1566         DNPRINTF(SWM_D_STACK, "stack_master: workspace: %d\n rot=%s flip=%s",
1567             ws->idx, rot ? "yes" : "no", flip ? "yes" : "no");
1568
1569         winno = count_win(ws, 0);
1570         if (winno == 0 && count_win(ws, 1) == 0)
1571                 return;
1572
1573         TAILQ_FOREACH(win, &ws->winlist, entry)
1574                 if (win->transient == 0 && win->floating == 0)
1575                         break;
1576
1577         if (win == NULL)
1578                 goto notiles;
1579
1580         if (rot) {
1581                 w_inc = win->sh.width_inc;
1582                 w_base = win->sh.base_width;
1583                 mwin = ws->l_state.horizontal_mwin;
1584                 mscale = ws->l_state.horizontal_msize;
1585                 stacks = ws->l_state.horizontal_stacks;
1586                 SWAPXY(&r_g);
1587         } else {
1588                 w_inc = win->sh.height_inc;
1589                 w_base = win->sh.base_height;
1590                 mwin = ws->l_state.vertical_mwin;
1591                 mscale = ws->l_state.vertical_msize;
1592                 stacks = ws->l_state.vertical_stacks;
1593         }
1594         win_g = r_g;
1595
1596         if (stacks > winno - mwin)
1597                 stacks = winno - mwin;
1598         if (stacks < 1)
1599                 stacks = 1;
1600
1601         h_slice = r_g.h / SWM_H_SLICE;
1602         if (mwin && winno > mwin) {
1603                 v_slice = r_g.w / SWM_V_SLICE;
1604
1605                 split = mwin;
1606                 colno = split;
1607                 win_g.w = v_slice * mscale;
1608
1609                 if (w_inc > 1 && w_inc < v_slice) {
1610                         /* adjust for window's requested size increment */
1611                         remain = (win_g.w - w_base) % w_inc;
1612                         missing = w_inc - remain;
1613                         win_g.w -= remain;
1614                         extra += remain;
1615                 }
1616
1617                 msize = win_g.w;
1618                 if (flip)
1619                         win_g.x += r_g.w - msize;
1620         } else {
1621                 msize = -2;
1622                 colno = split = winno / stacks;
1623                 win_g.w = ((r_g.w - (stacks * 2) + 2) / stacks);
1624         }
1625         hrh = r_g.h / colno;
1626         extra = r_g.h - (colno * hrh);
1627         win_g.h = hrh - 2;
1628
1629         /*  stack all the tiled windows */
1630         i = j = 0, s = stacks;
1631         TAILQ_FOREACH(win, &ws->winlist, entry) {
1632                 if (win->transient != 0 || win->floating != 0)
1633                         continue;
1634
1635                 if (split && i == split) {
1636                         colno = (winno - mwin) / stacks;
1637                         if (s <= (winno - mwin) % stacks)
1638                                 colno++;
1639                         split = split + colno;
1640                         hrh = (r_g.h / colno);
1641                         extra = r_g.h - (colno * hrh);
1642                         if (flip)
1643                                 win_g.x = r_g.x;
1644                         else
1645                                 win_g.x += win_g.w + 2;
1646                         win_g.w = (r_g.w - msize - (stacks * 2)) / stacks;
1647                         if (s == 1)
1648                                 win_g.w += (r_g.w - msize - (stacks * 2)) %
1649                                     stacks;
1650                         s--;
1651                         j = 0;
1652                 }
1653                 win_g.h = hrh - 2;
1654                 if (rot) {
1655                         h_inc = win->sh.width_inc;
1656                         h_base = win->sh.base_width;
1657                 } else {
1658                         h_inc = win->sh.height_inc;
1659                         h_base = win->sh.base_height;
1660                 }
1661                 if (j == colno - 1) {
1662                         win_g.h = hrh + extra;
1663                 } else if (h_inc > 1 && h_inc < h_slice) {
1664                         /* adjust for window's requested size increment */
1665                         remain = (win_g.h - h_base) % h_inc;
1666                         missing = h_inc - remain;
1667
1668                         if (missing <= extra || j == 0) {
1669                                 extra -= missing;
1670                                 win_g.h += missing;
1671                         } else {
1672                                 win_g.h -= remain;
1673                                 extra += remain;
1674                         }
1675                 }
1676
1677                 if (j == 0)
1678                         win_g.y = r_g.y;
1679                 else
1680                         win_g.y += last_h + 2;
1681
1682                 bzero(&wc, sizeof wc);
1683                 wc.border_width = 1;
1684                 if (rot) {
1685                         win->g.x = wc.x = win_g.y;
1686                         win->g.y = wc.y = win_g.x;
1687                         win->g.w = wc.width = win_g.h;
1688                         win->g.h = wc.height = win_g.w;
1689                 } else {
1690                         win->g.x = wc.x = win_g.x;
1691                         win->g.y = wc.y = win_g.y;
1692                         win->g.w = wc.width = win_g.w;
1693                         win->g.h = wc.height = win_g.h;
1694                 }
1695                 adjust_font(win);
1696                 mask = CWX | CWY | CWWidth | CWHeight | CWBorderWidth;
1697                 XConfigureWindow(display, win->id, mask, &wc);
1698                 XMapRaised(display, win->id);
1699
1700                 last_h = win_g.h;
1701                 i++;
1702                 j++;
1703         }
1704
1705  notiles:
1706         /* now, stack all the floaters and transients */
1707         TAILQ_FOREACH(win, &ws->winlist, entry) {
1708                 if (win->transient == 0 && win->floating == 0)
1709                         continue;
1710
1711                 stack_floater(win, ws->r);
1712                 XMapRaised(display, win->id);
1713         }
1714 }
1715
1716 void
1717 vertical_config(struct workspace *ws, int id)
1718 {
1719         DNPRINTF(SWM_D_STACK, "vertical_resize: workspace: %d\n", ws->idx);
1720
1721         switch (id) {
1722         case SWM_ARG_ID_STACKRESET:
1723         case SWM_ARG_ID_STACKINIT:
1724                 ws->l_state.vertical_msize = SWM_V_SLICE / 2;
1725                 ws->l_state.vertical_mwin = 1;
1726                 ws->l_state.vertical_stacks = 1;
1727                 break;
1728         case SWM_ARG_ID_MASTERSHRINK:
1729                 if (ws->l_state.vertical_msize > 1)
1730                         ws->l_state.vertical_msize--;
1731                 break;
1732         case SWM_ARG_ID_MASTERGROW:
1733                 if (ws->l_state.vertical_msize < SWM_V_SLICE - 1)
1734                         ws->l_state.vertical_msize++;
1735                 break;
1736         case SWM_ARG_ID_MASTERADD:
1737                 ws->l_state.vertical_mwin++;
1738                 break;
1739         case SWM_ARG_ID_MASTERDEL:
1740                 if (ws->l_state.vertical_mwin > 0)
1741                         ws->l_state.vertical_mwin--;
1742                 break;
1743         case SWM_ARG_ID_STACKINC:
1744                 ws->l_state.vertical_stacks++;
1745                 break;
1746         case SWM_ARG_ID_STACKDEC:
1747                 if (ws->l_state.vertical_stacks > 1)
1748                         ws->l_state.vertical_stacks--;
1749                 break;
1750         default:
1751                 return;
1752         }
1753 }
1754
1755 void
1756 vertical_stack(struct workspace *ws, struct swm_geometry *g)
1757 {
1758         DNPRINTF(SWM_D_STACK, "vertical_stack: workspace: %d\n", ws->idx);
1759
1760         stack_master(ws, g, 0, 0);
1761 }
1762
1763 void
1764 horizontal_config(struct workspace *ws, int id)
1765 {
1766         DNPRINTF(SWM_D_STACK, "horizontal_config: workspace: %d\n", ws->idx);
1767
1768         switch (id) {
1769         case SWM_ARG_ID_STACKRESET:
1770         case SWM_ARG_ID_STACKINIT:
1771                 ws->l_state.horizontal_mwin = 1;
1772                 ws->l_state.horizontal_msize = SWM_H_SLICE / 2;
1773                 ws->l_state.horizontal_stacks = 1;
1774                 break;
1775         case SWM_ARG_ID_MASTERSHRINK:
1776                 if (ws->l_state.horizontal_msize > 1)
1777                         ws->l_state.horizontal_msize--;
1778                 break;
1779         case SWM_ARG_ID_MASTERGROW:
1780                 if (ws->l_state.horizontal_msize < SWM_H_SLICE - 1)
1781                         ws->l_state.horizontal_msize++;
1782                 break;
1783         case SWM_ARG_ID_MASTERADD:
1784                 ws->l_state.horizontal_mwin++;
1785                 break;
1786         case SWM_ARG_ID_MASTERDEL:
1787                 if (ws->l_state.horizontal_mwin > 0)
1788                         ws->l_state.horizontal_mwin--;
1789                 break;
1790         case SWM_ARG_ID_STACKINC:
1791                 ws->l_state.horizontal_stacks++;
1792                 break;
1793         case SWM_ARG_ID_STACKDEC:
1794                 if (ws->l_state.horizontal_stacks > 1)
1795                         ws->l_state.horizontal_stacks--;
1796                 break;
1797         default:
1798                 return;
1799         }
1800 }
1801
1802 void
1803 horizontal_stack(struct workspace *ws, struct swm_geometry *g)
1804 {
1805         DNPRINTF(SWM_D_STACK, "vertical_stack: workspace: %d\n", ws->idx);
1806
1807         stack_master(ws, g, 1, 0);
1808 }
1809
1810 /* fullscreen view */
1811 void
1812 max_stack(struct workspace *ws, struct swm_geometry *g)
1813 {
1814         XWindowChanges          wc;
1815         struct swm_geometry     gg = *g;
1816         struct ws_win           *win, *winfocus;
1817         unsigned int            mask;
1818         int                     winno;
1819
1820         /* XXX this function needs to be rewritten it sucks crap */
1821
1822         DNPRINTF(SWM_D_STACK, "max_stack: workspace: %d\n", ws->idx);
1823
1824         winno = count_win(ws, 0);
1825         if (winno == 0 && count_win(ws, 1) == 0)
1826                 return;
1827
1828         if (ws->focus == NULL)
1829                 ws->focus = TAILQ_FIRST(&ws->winlist);
1830         winfocus = ws->focus;
1831
1832         TAILQ_FOREACH(win, &ws->winlist, entry) {
1833                 if (win->transient != 0 || win->floating != 0) {
1834                         if (win == ws->focus) {
1835                                 /* XXX maximize? */
1836                                 stack_floater(win, ws->r);
1837                                 XMapRaised(display, win->id);
1838                         } else {
1839                                 /* XXX this sucks */
1840                                 XUnmapWindow(display, win->id);
1841                         }
1842                 } else {
1843                         bzero(&wc, sizeof wc);
1844                         wc.border_width = 1;
1845                         win->g.x = wc.x = gg.x;
1846                         win->g.y = wc.y = gg.y;
1847                         win->g.w = wc.width = gg.w;
1848                         win->g.h = wc.height = gg.h;
1849                         mask = CWX | CWY | CWWidth | CWHeight | CWBorderWidth;
1850                         XConfigureWindow(display, win->id, mask, &wc);
1851
1852                         if (win == ws->focus) {
1853                                 XMapRaised(display, win->id);
1854                         } else
1855                                 XUnmapWindow(display, win->id);
1856                 }
1857         }
1858
1859         if (winfocus)
1860                 focus_win(winfocus); /* has to be done outside of the loop */
1861 }
1862
1863 void
1864 send_to_ws(struct swm_region *r, union arg *args)
1865 {
1866         int                     wsid = args->id;
1867         struct ws_win           *win = r->ws->focus;
1868         struct workspace        *ws, *nws;
1869         Atom                    ws_idx_atom = 0;
1870         unsigned char           ws_idx_str[SWM_PROPLEN];
1871
1872         if (win == NULL)
1873                 return;
1874
1875         DNPRINTF(SWM_D_MOVE, "send_to_ws: win: %lu\n", win->id);
1876
1877         ws = win->ws;
1878         nws = &win->s->ws[wsid];
1879
1880         XUnmapWindow(display, win->id);
1881
1882         /* find a window to focus */
1883         ws->focus = TAILQ_PREV(win, ws_win_list, entry);
1884         if (ws->focus == NULL)
1885                 ws->focus = TAILQ_FIRST(&ws->winlist);
1886         if (ws->focus == win)
1887                 ws->focus = NULL;
1888
1889         TAILQ_REMOVE(&ws->winlist, win, entry);
1890
1891         TAILQ_INSERT_TAIL(&nws->winlist, win, entry);
1892         win->ws = nws;
1893
1894         /* Try to update the window's workspace property */
1895         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
1896         if (ws_idx_atom &&
1897             snprintf(ws_idx_str, SWM_PROPLEN, "%d", nws->idx) < SWM_PROPLEN) {
1898                 DNPRINTF(SWM_D_PROP, "setting property _SWM_WS to %s\n",
1899                     ws_idx_str);
1900                 XChangeProperty(display, win->id, ws_idx_atom, XA_STRING, 8,
1901                     PropModeReplace, ws_idx_str, SWM_PROPLEN);
1902         }
1903
1904         if (count_win(nws, 1) == 1)
1905                 nws->focus = win;
1906         ws->restack = 1;
1907         nws->restack = 1;
1908
1909         stack();
1910 }
1911
1912 void
1913 wkill(struct swm_region *r, union arg *args)
1914 {
1915         DNPRINTF(SWM_D_MISC, "wkill %d\n", args->id);
1916
1917         if(r->ws->focus == NULL)
1918                 return;
1919
1920         if (args->id == SWM_ARG_ID_KILLWINDOW)
1921                 XKillClient(display, r->ws->focus->id);
1922         else
1923                 if (r->ws->focus->can_delete)
1924                         client_msg(r->ws->focus, adelete);
1925 }
1926
1927 void
1928 floating_toggle(struct swm_region *r, union arg *args)
1929 {
1930         struct ws_win   *win = r->ws->focus;
1931
1932         if (win == NULL)
1933                 return;
1934
1935         win->floating = !win->floating;
1936         win->manual = 0;
1937         stack();
1938         focus_win(win);
1939 }
1940
1941 void
1942 resize_window(struct ws_win *win, int center)
1943 {
1944         unsigned int            mask;
1945         XWindowChanges          wc;
1946         struct swm_region       *r;
1947
1948         r = root_to_region(win->wa.root);
1949         bzero(&wc, sizeof wc);
1950         mask = CWBorderWidth | CWWidth | CWHeight;
1951         wc.border_width = 1;
1952         wc.width = win->g.w;
1953         wc.height = win->g.h;
1954         if (center == SWM_ARG_ID_CENTER) {
1955                 wc.x = (WIDTH(r) - win->g.w) / 2;
1956                 wc.y = (HEIGHT(r) - win->g.h) / 2;
1957                 mask |= CWX | CWY;
1958         }
1959
1960         DNPRINTF(SWM_D_STACK, "resize_window: win %lu x %d y %d w %d h %d\n",
1961             win->id, wc.x, wc.y, wc.width, wc.height);
1962
1963         XConfigureWindow(display, win->id, mask, &wc);
1964         config_win(win);
1965 }
1966
1967 void
1968 resize(struct ws_win *win, union arg *args)
1969 {
1970         XEvent                  ev;
1971         Time                    time = 0;
1972
1973         DNPRINTF(SWM_D_MOUSE, "resize: win %lu floating %d trans %d\n",
1974             win->id, win->floating, win->transient);
1975
1976         if (!(win->transient != 0 || win->floating != 0))
1977                 return;
1978
1979         if (XGrabPointer(display, win->id, False, MOUSEMASK, GrabModeAsync,
1980             GrabModeAsync, None, None /* cursor */, CurrentTime) != GrabSuccess)
1981                 return;
1982         XWarpPointer(display, None, win->id, 0, 0, 0, 0, win->g.w, win->g.h);
1983         do {
1984                 XMaskEvent(display, MOUSEMASK | ExposureMask |
1985                     SubstructureRedirectMask, &ev);
1986                 switch(ev.type) {
1987                 case ConfigureRequest:
1988                 case Expose:
1989                 case MapRequest:
1990                         handler[ev.type](&ev);
1991                         break;
1992                 case MotionNotify:
1993                         if (ev.xmotion.x <= 1)
1994                                 ev.xmotion.x = 1;
1995                         if (ev.xmotion.y <= 1)
1996                                 ev.xmotion.y = 1;
1997                         win->g.w = ev.xmotion.x;
1998                         win->g.h = ev.xmotion.y;
1999
2000                         /* not free, don't sync more than 60 times / second */
2001                         if ((ev.xmotion.time - time) > (1000 / 60) ) {
2002                                 time = ev.xmotion.time;
2003                                 XSync(display, False);
2004                                 resize_window(win, args->id);
2005                         }
2006                         break;
2007                 }
2008         } while (ev.type != ButtonRelease);
2009         if (time) {
2010                 XSync(display, False);
2011                 resize_window(win, args->id);
2012         }
2013         XWarpPointer(display, None, win->id, 0, 0, 0, 0, win->g.w - 1,
2014             win->g.h - 1);
2015         XUngrabPointer(display, CurrentTime);
2016
2017         /* drain events */
2018         while (XCheckMaskEvent(display, EnterWindowMask, &ev));
2019 }
2020
2021 void
2022 move_window(struct ws_win *win)
2023 {
2024         unsigned int            mask;
2025         XWindowChanges          wc;
2026         struct swm_region       *r;
2027
2028         r = root_to_region(win->wa.root);
2029         bzero(&wc, sizeof wc);
2030         mask = CWX | CWY;
2031         wc.x = win->g.x;
2032         wc.y = win->g.y;
2033
2034         DNPRINTF(SWM_D_STACK, "move_window: win %lu x %d y %d w %d h %d\n",
2035             win->id, wc.x, wc.y, wc.width, wc.height);
2036
2037         XConfigureWindow(display, win->id, mask, &wc);
2038         config_win(win);
2039 }
2040
2041 void
2042 move(struct ws_win *win, union arg *args)
2043 {
2044         XEvent                  ev;
2045         Time                    time = 0;
2046         int                     restack = 0;
2047
2048         DNPRINTF(SWM_D_MOUSE, "move: win %lu floating %d trans %d\n",
2049             win->id, win->floating, win->transient);
2050
2051         if (win->floating == 0) {
2052                 win->floating = 1;
2053                 win->manual = 1;
2054                 restack = 1;
2055         }
2056
2057         if (XGrabPointer(display, win->id, False, MOUSEMASK, GrabModeAsync,
2058             GrabModeAsync, None, None /* cursor */, CurrentTime) != GrabSuccess)
2059                 return;
2060         XWarpPointer(display, None, win->id, 0, 0, 0, 0, 0, 0);
2061         do {
2062                 XMaskEvent(display, MOUSEMASK | ExposureMask |
2063                     SubstructureRedirectMask, &ev);
2064                 switch(ev.type) {
2065                 case ConfigureRequest:
2066                 case Expose:
2067                 case MapRequest:
2068                         handler[ev.type](&ev);
2069                         break;
2070                 case MotionNotify:
2071                         win->g.x = ev.xmotion.x_root;
2072                         win->g.y = ev.xmotion.y_root;
2073
2074                         /* not free, don't sync more than 60 times / second */
2075                         if ((ev.xmotion.time - time) > (1000 / 60) ) {
2076                                 time = ev.xmotion.time;
2077                                 XSync(display, False);
2078                                 move_window(win);
2079                         }
2080                         break;
2081                 }
2082         } while (ev.type != ButtonRelease);
2083         if (time) {
2084                 XSync(display, False);
2085                 move_window(win);
2086         }
2087         XWarpPointer(display, None, win->id, 0, 0, 0, 0, 0, 0);
2088         XUngrabPointer(display, CurrentTime);
2089         if (restack)
2090                 stack();
2091
2092         /* drain events */
2093         while (XCheckMaskEvent(display, EnterWindowMask, &ev));
2094 }
2095
2096 /* key definitions */
2097 void dummykeyfunc(struct swm_region *r, union arg *args) {};
2098 void legacyfunc(struct swm_region *r, union arg *args) {};
2099
2100 struct keyfunc {
2101         char                    name[SWM_FUNCNAME_LEN];
2102         void                    (*func)(struct swm_region *r, union arg *);
2103         union arg               args;
2104 } keyfuncs[kf_invalid + 1] = {
2105         /* name                 function        argument */
2106         { "cycle_layout",       cycle_layout,   {0} },
2107         { "stack_reset",        stack_config,   {.id = SWM_ARG_ID_STACKRESET} },
2108         { "master_shrink",      stack_config,   {.id = SWM_ARG_ID_MASTERSHRINK} },
2109         { "master_grow",        stack_config,   {.id = SWM_ARG_ID_MASTERGROW} },
2110         { "master_add",         stack_config,   {.id = SWM_ARG_ID_MASTERADD} },
2111         { "master_del",         stack_config,   {.id = SWM_ARG_ID_MASTERDEL} },
2112         { "stack_inc",          stack_config,   {.id = SWM_ARG_ID_STACKINC} },
2113         { "stack_dec",          stack_config,   {.id = SWM_ARG_ID_STACKDEC} },
2114         { "swap_main",          swapwin,        {.id = SWM_ARG_ID_SWAPMAIN} },
2115         { "focus_next",         focus,          {.id = SWM_ARG_ID_FOCUSNEXT} },
2116         { "focus_prev",         focus,          {.id = SWM_ARG_ID_FOCUSPREV} },
2117         { "swap_next",          swapwin,        {.id = SWM_ARG_ID_SWAPNEXT} },
2118         { "swap_prev",          swapwin,        {.id = SWM_ARG_ID_SWAPPREV} },
2119         { "spawn_term",         spawnterm,      {.argv = spawn_term} },
2120         { "spawn_menu",         legacyfunc,     {0} },
2121         { "quit",               quit,           {0} },
2122         { "restart",            restart,        {0} },
2123         { "focus_main",         focus,          {.id = SWM_ARG_ID_FOCUSMAIN} },
2124         { "ws_1",               switchws,       {.id = 0} },
2125         { "ws_2",               switchws,       {.id = 1} },
2126         { "ws_3",               switchws,       {.id = 2} },
2127         { "ws_4",               switchws,       {.id = 3} },
2128         { "ws_5",               switchws,       {.id = 4} },
2129         { "ws_6",               switchws,       {.id = 5} },
2130         { "ws_7",               switchws,       {.id = 6} },
2131         { "ws_8",               switchws,       {.id = 7} },
2132         { "ws_9",               switchws,       {.id = 8} },
2133         { "ws_10",              switchws,       {.id = 9} },
2134         { "ws_next",            cyclews,        {.id = SWM_ARG_ID_CYCLEWS_UP} },
2135         { "ws_prev",            cyclews,        {.id = SWM_ARG_ID_CYCLEWS_DOWN} },
2136         { "screen_next",        cyclescr,       {.id = SWM_ARG_ID_CYCLESC_UP} },
2137         { "screen_prev",        cyclescr,       {.id = SWM_ARG_ID_CYCLESC_DOWN} },
2138         { "mvws_1",             send_to_ws,     {.id = 0} },
2139         { "mvws_2",             send_to_ws,     {.id = 1} },
2140         { "mvws_3",             send_to_ws,     {.id = 2} },
2141         { "mvws_4",             send_to_ws,     {.id = 3} },
2142         { "mvws_5",             send_to_ws,     {.id = 4} },
2143         { "mvws_6",             send_to_ws,     {.id = 5} },
2144         { "mvws_7",             send_to_ws,     {.id = 6} },
2145         { "mvws_8",             send_to_ws,     {.id = 7} },
2146         { "mvws_9",             send_to_ws,     {.id = 8} },
2147         { "mvws_10",            send_to_ws,     {.id = 9} },
2148         { "bar_toggle",         bar_toggle,     {0} },
2149         { "wind_kill",          wkill,          {.id = SWM_ARG_ID_KILLWINDOW} },
2150         { "wind_del",           wkill,          {.id = SWM_ARG_ID_DELETEWINDOW} },
2151         { "screenshot_all",     legacyfunc,     {0} },
2152         { "screenshot_wind",    legacyfunc,     {0} },
2153         { "float_toggle",       floating_toggle,{0} },
2154         { "version",            version,        {0} },
2155         { "spawn_lock",         legacyfunc,     {0} },
2156         { "spawn_initscr",      legacyfunc,     {0} },
2157         { "spawn_custom",       dummykeyfunc,   {0} },
2158         { "invalid key func",   NULL,           {0} },
2159 };
2160 struct key {
2161         unsigned int            mod;
2162         KeySym                  keysym;
2163         enum keyfuncid          funcid;
2164         char                    *spawn_name;
2165 };
2166 int                             keys_size = 0, keys_length = 0;
2167 struct key                      *keys = NULL;
2168
2169 /* mouse */
2170 enum { client_click, root_click };
2171 struct button {
2172         unsigned int            action;
2173         unsigned int            mask;
2174         unsigned int            button;
2175         void                    (*func)(struct ws_win *, union arg *);
2176         union arg               args;
2177 } buttons[] = {
2178           /* action     key             mouse button    func    args */
2179         { client_click, MODKEY,         Button3,        resize, {.id = SWM_ARG_ID_DONTCENTER} },
2180         { client_click, MODKEY | ShiftMask, Button3,    resize, {.id = SWM_ARG_ID_CENTER} },
2181         { client_click, MODKEY,         Button1,        move,   {0} },
2182 };
2183
2184 void
2185 update_modkey(unsigned int mod)
2186 {
2187         int                     i;
2188
2189         mod_key = mod;
2190         for (i = 0; i < keys_length; i++)
2191                 if (keys[i].mod & ShiftMask)
2192                         keys[i].mod = mod | ShiftMask;
2193                 else
2194                         keys[i].mod = mod;
2195
2196         for (i = 0; i < LENGTH(buttons); i++)
2197                 if (buttons[i].mask & ShiftMask)
2198                         buttons[i].mask = mod | ShiftMask;
2199                 else
2200                         buttons[i].mask = mod;
2201 }
2202
2203 /* spawn */
2204 struct spawn_prog {
2205         char                    *name;
2206         int                     argc;
2207         char                    **argv;
2208 };
2209
2210 int                             spawns_size = 0, spawns_length = 0;
2211 struct spawn_prog               *spawns = NULL;
2212
2213 void
2214 spawn_custom(struct swm_region *r, union arg *args, char *spawn_name)
2215 {
2216         union arg               a;
2217         struct spawn_prog       *prog = NULL;
2218         int                     i;
2219         char                    *ap, **real_args;
2220
2221         DNPRINTF(SWM_D_SPAWN, "spawn_custom %s\n", spawn_name);
2222
2223         /* find program */
2224         for (i = 0; i < spawns_length; i++) {
2225                 if (!strcasecmp(spawn_name, spawns[i].name))
2226                         prog = &spawns[i];
2227         }
2228         if (prog == NULL) {
2229                 fprintf(stderr, "spawn_custom: program %s not found\n",
2230                     spawn_name);
2231                 return;
2232         }
2233
2234         /* make room for expanded args */
2235         if ((real_args = calloc(prog->argc + 1, sizeof(char *))) == NULL)
2236                 err(1, "spawn_custom: calloc real_args");
2237
2238         /* expand spawn_args into real_args */
2239         for (i = 0; i < prog->argc; i++) {
2240                 ap = prog->argv[i];
2241                 DNPRINTF(SWM_D_SPAWN, "spawn_custom: raw arg = %s\n", ap);
2242                 if (!strcasecmp(ap, "$bar_border")) {
2243                         if ((real_args[i] =
2244                             strdup(r->s->c[SWM_S_COLOR_BAR_BORDER].name))
2245                             == NULL)
2246                                 err(1,  "spawn_custom border color");
2247                 } else if (!strcasecmp(ap, "$bar_color")) {
2248                         if ((real_args[i] =
2249                             strdup(r->s->c[SWM_S_COLOR_BAR].name))
2250                             == NULL)
2251                                 err(1, "spawn_custom bar color");
2252                 } else if (!strcasecmp(ap, "$bar_font")) {
2253                         if ((real_args[i] = strdup(bar_fonts[bar_fidx]))
2254                             == NULL)
2255                                 err(1, "spawn_custom bar fonts");
2256                 } else if (!strcasecmp(ap, "$bar_font_color")) {
2257                         if ((real_args[i] =
2258                             strdup(r->s->c[SWM_S_COLOR_BAR_FONT].name))
2259                             == NULL)
2260                                 err(1, "spawn_custom color font");
2261                 } else if (!strcasecmp(ap, "$color_focus")) {
2262                         if ((real_args[i] =
2263                             strdup(r->s->c[SWM_S_COLOR_FOCUS].name))
2264                             == NULL)
2265                                 err(1, "spawn_custom color focus");
2266                 } else if (!strcasecmp(ap, "$color_unfocus")) {
2267                         if ((real_args[i] =
2268                             strdup(r->s->c[SWM_S_COLOR_UNFOCUS].name))
2269                             == NULL)
2270                                 err(1, "spawn_custom color unfocus");
2271                 } else {
2272                         /* no match --> copy as is */
2273                         if ((real_args[i] = strdup(ap)) == NULL)
2274                                 err(1, "spawn_custom strdup(ap)");
2275                 }
2276                 DNPRINTF(SWM_D_SPAWN, "spawn_custom: cooked arg = %s\n",
2277                     real_args[i]);
2278         }
2279
2280 #ifdef SWM_DEBUG
2281         if ((swm_debug & SWM_D_SPAWN) != 0) {
2282                 fprintf(stderr, "spawn_custom: result = ");
2283                 for (i = 0; i < prog->argc; i++)
2284                         fprintf(stderr, "\"%s\" ", real_args[i]);
2285                 fprintf(stderr, "\n");
2286         }
2287 #endif
2288
2289         a.argv = real_args;
2290         spawn(r, &a);
2291         for (i = 0; i < prog->argc; i++)
2292                 free(real_args[i]);
2293         free(real_args);
2294 }
2295
2296 void
2297 setspawn(struct spawn_prog *prog)
2298 {
2299         int                     i, j;
2300
2301         if (prog == NULL || prog->name == NULL)
2302                 return;
2303
2304         /* find existing */
2305         for (i = 0; i < spawns_length; i++) {
2306                 if (!strcmp(spawns[i].name, prog->name)) {
2307                         /* found */
2308                         if (prog->argv == NULL) {
2309                                 /* delete */
2310                                 DNPRINTF(SWM_D_SPAWN,
2311                                     "setspawn: delete #%d %s\n",
2312                                     i, spawns[i].name);
2313                                 free(spawns[i].name);
2314                                 for (j = 0; j < spawns[i].argc; j++)
2315                                         free(spawns[i].argv[j]);
2316                                 free(spawns[i].argv);
2317                                 j = spawns_length - 1;
2318                                 if (i < j)
2319                                         spawns[i] = spawns[j];
2320                                 spawns_length--;
2321                                 free(prog->name);
2322                         } else {
2323                                 /* replace */
2324                                 DNPRINTF(SWM_D_SPAWN,
2325                                     "setspawn: replace #%d %s\n",
2326                                     i, spawns[i].name);
2327                                 free(spawns[i].name);
2328                                 for (j = 0; j < spawns[i].argc; j++)
2329                                         free(spawns[i].argv[j]);
2330                                 free(spawns[i].argv);
2331                                 spawns[i] = *prog;
2332                         }
2333                         /* found case handled */
2334                         free(prog);
2335                         return;
2336                 }
2337         }
2338
2339         if (prog->argv == NULL) {
2340                 fprintf(stderr,
2341                     "error: setspawn: cannot find program %s", prog->name);
2342                 free(prog);
2343                 return;
2344         }
2345
2346         /* not found: add */
2347         if (spawns_size == 0 || spawns == NULL) {
2348                 spawns_size = 4;
2349                 DNPRINTF(SWM_D_SPAWN, "setspawn: init list %d\n", spawns_size);
2350                 spawns = malloc((size_t)spawns_size *
2351                     sizeof(struct spawn_prog));
2352                 if (spawns == NULL) {
2353                         fprintf(stderr, "setspawn: malloc failed\n");
2354                         perror(" failed");
2355                         quit(NULL, NULL);
2356                 }
2357         } else if (spawns_length == spawns_size) {
2358                 spawns_size *= 2;
2359                 DNPRINTF(SWM_D_SPAWN, "setspawn: grow list %d\n", spawns_size);
2360                 spawns = realloc(spawns, (size_t)spawns_size *
2361                     sizeof(struct spawn_prog));
2362                 if (spawns == NULL) {
2363                         fprintf(stderr, "setspawn: realloc failed\n");
2364                         perror(" failed");
2365                         quit(NULL, NULL);
2366                 }
2367         }
2368
2369         if (spawns_length < spawns_size) {
2370                 DNPRINTF(SWM_D_SPAWN, "setspawn: add #%d %s\n",
2371                     spawns_length, prog->name);
2372                 i = spawns_length++;
2373                 spawns[i] = *prog;
2374         } else {
2375                 fprintf(stderr, "spawns array problem?\n");
2376                 if (spawns == NULL) {
2377                         fprintf(stderr, "spawns array is NULL!\n");
2378                         quit(NULL, NULL);
2379                 }
2380         }
2381         free(prog);
2382 }
2383
2384 int
2385 setconfspawn(char *selector, char *value, int flags)
2386 {
2387         struct spawn_prog       *prog;
2388         char                    *vp, *cp, *word;
2389
2390         DNPRINTF(SWM_D_SPAWN, "setconfspawn: [%s] [%s]\n", selector, value);
2391         if ((prog = calloc(1, sizeof *prog)) == NULL)
2392                 err(1, "setconfspawn: calloc prog");
2393         prog->name = strdup(selector);
2394         if (prog->name == NULL)
2395                 err(1, "setconfspawn prog->name");
2396         if ((cp = vp = strdup(value)) == NULL)
2397                 err(1, "setconfspawn: strdup(value) ");
2398         while ((word = strsep(&cp, " \t")) != NULL) {
2399                 DNPRINTF(SWM_D_SPAWN, "setconfspawn: arg [%s]\n", word);
2400                 if (cp)
2401                         cp += (long)strspn(cp, " \t");
2402                 if (strlen(word) > 0) {
2403                         prog->argc++;
2404                         prog->argv = realloc(prog->argv,
2405                             prog->argc * sizeof(char *));
2406                         if ((prog->argv[prog->argc - 1] = strdup(word)) == NULL)
2407                                 err(1, "setconfspawn: strdup");
2408                 }
2409         }
2410         free(vp);
2411
2412         setspawn(prog);
2413
2414         DNPRINTF(SWM_D_SPAWN, "setconfspawn: done\n");
2415         return (0);
2416 }
2417
2418 void
2419 setup_spawn(void)
2420 {
2421         setconfspawn("term",            "xterm",                0);
2422         setconfspawn("screenshot_all",  "screenshot.sh full",   0);
2423         setconfspawn("screenshot_wind", "screenshot.sh window", 0);
2424         setconfspawn("lock",            "xlock",                0);
2425         setconfspawn("initscr",         "initscreen.sh",        0);
2426         setconfspawn("menu",            "dmenu_run"
2427                                         " -fn $bar_font"
2428                                         " -nb $bar_color"
2429                                         " -nf $bar_font_color"
2430                                         " -sb $bar_border"
2431                                         " -sf $bar_color",      0);
2432 }
2433
2434 /* key bindings */
2435 #define SWM_MODNAME_SIZE        32
2436 #define SWM_KEY_WS              "\n+ \t"
2437 int
2438 parsekeys(char *keystr, unsigned int currmod, unsigned int *mod, KeySym *ks)
2439 {
2440         char                    *cp, *name;
2441         KeySym                  uks;
2442         DNPRINTF(SWM_D_KEY, "parsekeys: enter [%s]\n", keystr);
2443         if (mod == NULL || ks == NULL) {
2444                 DNPRINTF(SWM_D_KEY, "parsekeys: no mod or key vars\n");
2445                 return (1);
2446         }
2447         if (keystr == NULL || strlen(keystr) == 0) {
2448                 DNPRINTF(SWM_D_KEY, "parsekeys: no keystr\n");
2449                 return (1);
2450         }
2451         cp = keystr;
2452         *ks = NoSymbol;
2453         *mod = 0;
2454         while ((name = strsep(&cp, SWM_KEY_WS)) != NULL) {
2455                 DNPRINTF(SWM_D_KEY, "parsekeys: key [%s]\n", name);
2456                 if (cp)
2457                         cp += (long)strspn(cp, SWM_KEY_WS);
2458                 if (strncasecmp(name, "MOD", SWM_MODNAME_SIZE) == 0)
2459                         *mod |= currmod;
2460                 else if (!strncasecmp(name, "Mod1", SWM_MODNAME_SIZE))
2461                         *mod |= Mod1Mask;
2462                 else if (!strncasecmp(name, "Mod2", SWM_MODNAME_SIZE))
2463                         *mod += Mod2Mask;
2464                 else if (!strncmp(name, "Mod3", SWM_MODNAME_SIZE))
2465                         *mod |= Mod3Mask;
2466                 else if (!strncmp(name, "Mod4", SWM_MODNAME_SIZE))
2467                         *mod |= Mod4Mask;
2468                 else if (strncasecmp(name, "SHIFT", SWM_MODNAME_SIZE) == 0)
2469                         *mod |= ShiftMask;
2470                 else if (strncasecmp(name, "CONTROL", SWM_MODNAME_SIZE) == 0)
2471                         *mod |= ControlMask;
2472                 else {
2473                         *ks = XStringToKeysym(name);
2474                         XConvertCase(*ks, ks, &uks);
2475                         if (ks == NoSymbol) {
2476                                 DNPRINTF(SWM_D_KEY,
2477                                     "parsekeys: invalid key %s\n",
2478                                     name);
2479                                 return (1);
2480                         }
2481                 }
2482         }
2483         DNPRINTF(SWM_D_KEY, "parsekeys: leave ok\n");
2484         return (0);
2485 }
2486 char *
2487 strdupsafe(char *str)
2488 {
2489         if (str == NULL)
2490                 return (NULL);
2491         else
2492                 return (strdup(str));
2493 }
2494 void
2495 setkeybinding(unsigned int mod, KeySym ks, enum keyfuncid kfid, char *spawn_name)
2496 {
2497         int                     i, j;
2498         DNPRINTF(SWM_D_KEY, "setkeybinding: enter %s [%s]\n",
2499             keyfuncs[kfid].name, spawn_name);
2500         /* find existing */
2501         for (i = 0; i < keys_length; i++) {
2502                 if (keys[i].mod == mod && keys[i].keysym == ks) {
2503                         if (kfid == kf_invalid) {
2504                                 /* found: delete */
2505                                 DNPRINTF(SWM_D_KEY,
2506                                     "setkeybinding: delete #%d %s\n",
2507                                     i, keyfuncs[keys[i].funcid].name);
2508                                 free(keys[i].spawn_name);
2509                                 j = keys_length - 1;
2510                                 if (i < j)
2511                                         keys[i] = keys[j];
2512                                 keys_length--;
2513                                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2514                                 return;
2515                         } else {
2516                                 /* found: replace */
2517                                 DNPRINTF(SWM_D_KEY,
2518                                     "setkeybinding: replace #%d %s %s\n",
2519                                     i, keyfuncs[keys[i].funcid].name,
2520                                     spawn_name);
2521                                 free(keys[i].spawn_name);
2522                                 keys[i].mod = mod;
2523                                 keys[i].keysym = ks;
2524                                 keys[i].funcid = kfid;
2525                                 keys[i].spawn_name = strdupsafe(spawn_name);
2526                                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2527                                 return;
2528                         }
2529                 }
2530         }
2531         if (kfid == kf_invalid) {
2532                 fprintf(stderr,
2533                     "error: setkeybinding: cannot find mod/key combination");
2534                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2535                 return;
2536         }
2537         /* not found: add */
2538         if (keys_size == 0 || keys == NULL) {
2539                 keys_size = 4;
2540                 DNPRINTF(SWM_D_KEY, "setkeybinding: init list %d\n", keys_size);
2541                 keys = malloc((size_t)keys_size * sizeof(struct key));
2542                 if (!keys) {
2543                         fprintf(stderr, "malloc failed\n");
2544                         perror(" failed");
2545                         quit(NULL, NULL);
2546                 }
2547         } else if (keys_length == keys_size) {
2548                 keys_size *= 2;
2549                 DNPRINTF(SWM_D_KEY, "setkeybinding: grow list %d\n", keys_size);
2550                 keys = realloc(keys, (size_t)keys_size * sizeof(struct key));
2551                 if (!keys) {
2552                         fprintf(stderr, "realloc failed\n");
2553                         perror(" failed");
2554                         quit(NULL, NULL);
2555                 }
2556         }
2557         if (keys_length < keys_size) {
2558                 j = keys_length++;
2559                 DNPRINTF(SWM_D_KEY, "setkeybinding: add #%d %s %s\n",
2560                     j, keyfuncs[kfid].name, spawn_name);
2561                 keys[j].mod = mod;
2562                 keys[j].keysym = ks;
2563                 keys[j].funcid = kfid;
2564                 keys[j].spawn_name = strdupsafe(spawn_name);
2565         } else {
2566                 fprintf(stderr, "keys array problem?\n");
2567                 if (!keys) {
2568                         fprintf(stderr, "keys array problem\n");
2569                         quit(NULL, NULL);
2570                 }
2571         }
2572         DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2573 }
2574 int
2575 setconfbinding(char *selector, char *value, int flags)
2576 {
2577         enum keyfuncid          kfid;
2578         unsigned int            mod;
2579         KeySym                  ks;
2580         int                     i;
2581         DNPRINTF(SWM_D_KEY, "setconfbinding: enter\n");
2582         if (selector == NULL) {
2583                 DNPRINTF(SWM_D_KEY, "setconfbinding: unbind %s\n", value);
2584                 if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2585                         kfid = kf_invalid;
2586                         setkeybinding(mod, ks, kfid, NULL);
2587                         return (0);
2588                 } else
2589                         return (1);
2590         }
2591         /* search by key function name */
2592         for (kfid = 0; kfid < kf_invalid; (kfid)++) {
2593                 if (strncasecmp(selector, keyfuncs[kfid].name,
2594                     SWM_FUNCNAME_LEN) == 0) {
2595                         DNPRINTF(SWM_D_KEY, "setconfbinding: %s: match\n",
2596                             selector);
2597                         if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2598                                 setkeybinding(mod, ks, kfid, NULL);
2599                                 return (0);
2600                         } else
2601                                 return (1);
2602                 }
2603         }
2604         /* search by custom spawn name */
2605         for (i = 0; i < spawns_length; i++) {
2606                 if (strcasecmp(selector, spawns[i].name) == 0) {
2607                         DNPRINTF(SWM_D_KEY, "setconfbinding: %s: match\n",
2608                             selector);
2609                         if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2610                                 setkeybinding(mod, ks, kf_spawn_custom,
2611                                     spawns[i].name);
2612                                 return (0);
2613                         } else
2614                                 return (1);
2615                 }
2616         }
2617         DNPRINTF(SWM_D_KEY, "setconfbinding: no match\n");
2618         return (1);
2619 }
2620 void
2621 setup_keys(void)
2622 {
2623         setkeybinding(MODKEY,           XK_space,       kf_cycle_layout,NULL);
2624         setkeybinding(MODKEY|ShiftMask, XK_space,       kf_stack_reset, NULL);
2625         setkeybinding(MODKEY,           XK_h,           kf_master_shrink,NULL);
2626         setkeybinding(MODKEY,           XK_l,           kf_master_grow, NULL);
2627         setkeybinding(MODKEY,           XK_comma,       kf_master_add,  NULL);
2628         setkeybinding(MODKEY,           XK_period,      kf_master_del,  NULL);
2629         setkeybinding(MODKEY|ShiftMask, XK_comma,       kf_stack_inc,   NULL);
2630         setkeybinding(MODKEY|ShiftMask, XK_period,      kf_stack_dec,   NULL);
2631         setkeybinding(MODKEY,           XK_Return,      kf_swap_main,   NULL);
2632         setkeybinding(MODKEY,           XK_j,           kf_focus_next,  NULL);
2633         setkeybinding(MODKEY,           XK_k,           kf_focus_prev,  NULL);
2634         setkeybinding(MODKEY|ShiftMask, XK_j,           kf_swap_next,   NULL);
2635         setkeybinding(MODKEY|ShiftMask, XK_k,           kf_swap_prev,   NULL);
2636         setkeybinding(MODKEY|ShiftMask, XK_Return,      kf_spawn_term,  NULL);
2637         setkeybinding(MODKEY,           XK_p,           kf_spawn_custom,        "menu");
2638         setkeybinding(MODKEY|ShiftMask, XK_q,           kf_quit,        NULL);
2639         setkeybinding(MODKEY,           XK_q,           kf_restart,     NULL);
2640         setkeybinding(MODKEY,           XK_m,           kf_focus_main,  NULL);
2641         setkeybinding(MODKEY,           XK_1,           kf_ws_1,        NULL);
2642         setkeybinding(MODKEY,           XK_2,           kf_ws_2,        NULL);
2643         setkeybinding(MODKEY,           XK_3,           kf_ws_3,        NULL);
2644         setkeybinding(MODKEY,           XK_4,           kf_ws_4,        NULL);
2645         setkeybinding(MODKEY,           XK_5,           kf_ws_5,        NULL);
2646         setkeybinding(MODKEY,           XK_6,           kf_ws_6,        NULL);
2647         setkeybinding(MODKEY,           XK_7,           kf_ws_7,        NULL);
2648         setkeybinding(MODKEY,           XK_8,           kf_ws_8,        NULL);
2649         setkeybinding(MODKEY,           XK_9,           kf_ws_9,        NULL);
2650         setkeybinding(MODKEY,           XK_0,           kf_ws_10,       NULL);
2651         setkeybinding(MODKEY,           XK_Right,       kf_ws_next,     NULL);
2652         setkeybinding(MODKEY,           XK_Left,        kf_ws_prev,     NULL);
2653         setkeybinding(MODKEY|ShiftMask, XK_Right,       kf_screen_next, NULL);
2654         setkeybinding(MODKEY|ShiftMask, XK_Left,        kf_screen_prev, NULL);
2655         setkeybinding(MODKEY|ShiftMask, XK_1,           kf_mvws_1,      NULL);
2656         setkeybinding(MODKEY|ShiftMask, XK_2,           kf_mvws_2,      NULL);
2657         setkeybinding(MODKEY|ShiftMask, XK_3,           kf_mvws_3,      NULL);
2658         setkeybinding(MODKEY|ShiftMask, XK_4,           kf_mvws_4,      NULL);
2659         setkeybinding(MODKEY|ShiftMask, XK_5,           kf_mvws_5,      NULL);
2660         setkeybinding(MODKEY|ShiftMask, XK_6,           kf_mvws_6,      NULL);
2661         setkeybinding(MODKEY|ShiftMask, XK_7,           kf_mvws_7,      NULL);
2662         setkeybinding(MODKEY|ShiftMask, XK_8,           kf_mvws_8,      NULL);
2663         setkeybinding(MODKEY|ShiftMask, XK_9,           kf_mvws_9,      NULL);
2664         setkeybinding(MODKEY|ShiftMask, XK_0,           kf_mvws_10,     NULL);
2665         setkeybinding(MODKEY,           XK_b,           kf_bar_toggle,  NULL);
2666         setkeybinding(MODKEY,           XK_Tab,         kf_focus_next,  NULL);
2667         setkeybinding(MODKEY|ShiftMask, XK_Tab,         kf_focus_prev,  NULL);
2668         setkeybinding(MODKEY|ShiftMask, XK_x,           kf_wind_kill,   NULL);
2669         setkeybinding(MODKEY,           XK_x,           kf_wind_del,    NULL);
2670         setkeybinding(MODKEY,           XK_s,           kf_spawn_custom,        "screenshot_all");
2671         setkeybinding(MODKEY|ShiftMask, XK_s,           kf_spawn_custom,        "screenshot_wind");
2672         setkeybinding(MODKEY,           XK_t,           kf_float_toggle,NULL);
2673         setkeybinding(MODKEY|ShiftMask, XK_v,           kf_version,     NULL);
2674         setkeybinding(MODKEY|ShiftMask, XK_Delete,      kf_spawn_custom,        "lock");
2675         setkeybinding(MODKEY|ShiftMask, XK_i,           kf_spawn_custom,        "initscr");
2676 }
2677 void
2678 updatenumlockmask(void)
2679 {
2680         unsigned int            i, j;
2681         XModifierKeymap         *modmap;
2682
2683         DNPRINTF(SWM_D_MISC, "updatenumlockmask\n");
2684         numlockmask = 0;
2685         modmap = XGetModifierMapping(display);
2686         for (i = 0; i < 8; i++)
2687                 for (j = 0; j < modmap->max_keypermod; j++)
2688                         if (modmap->modifiermap[i * modmap->max_keypermod + j]
2689                           == XKeysymToKeycode(display, XK_Num_Lock))
2690                                 numlockmask = (1 << i);
2691
2692         XFreeModifiermap(modmap);
2693 }
2694
2695 void
2696 grabkeys(void)
2697 {
2698         unsigned int            i, j, k;
2699         KeyCode                 code;
2700         unsigned int            modifiers[] =
2701             { 0, LockMask, numlockmask, numlockmask | LockMask };
2702
2703         DNPRINTF(SWM_D_MISC, "grabkeys\n");
2704         updatenumlockmask();
2705
2706         for (k = 0; k < ScreenCount(display); k++) {
2707                 if (TAILQ_EMPTY(&screens[k].rl))
2708                         continue;
2709                 XUngrabKey(display, AnyKey, AnyModifier, screens[k].root);
2710                 for (i = 0; i < keys_length; i++) {
2711                         if ((code = XKeysymToKeycode(display, keys[i].keysym)))
2712                                 for (j = 0; j < LENGTH(modifiers); j++)
2713                                         XGrabKey(display, code,
2714                                             keys[i].mod | modifiers[j],
2715                                             screens[k].root, True,
2716                                             GrabModeAsync, GrabModeAsync);
2717                 }
2718         }
2719 }
2720
2721 void
2722 grabbuttons(struct ws_win *win, int focused)
2723 {
2724         unsigned int            i, j;
2725         unsigned int            modifiers[] =
2726             { 0, LockMask, numlockmask, numlockmask|LockMask };
2727
2728         updatenumlockmask();
2729         XUngrabButton(display, AnyButton, AnyModifier, win->id);
2730         if(focused) {
2731                 for (i = 0; i < LENGTH(buttons); i++)
2732                         if (buttons[i].action == client_click)
2733                                 for (j = 0; j < LENGTH(modifiers); j++)
2734                                         XGrabButton(display, buttons[i].button,
2735                                             buttons[i].mask | modifiers[j],
2736                                             win->id, False, BUTTONMASK,
2737                                             GrabModeAsync, GrabModeSync, None,
2738                                             None);
2739         } else
2740                 XGrabButton(display, AnyButton, AnyModifier, win->id, False,
2741                     BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
2742 }
2743
2744 void
2745 expose(XEvent *e)
2746 {
2747         DNPRINTF(SWM_D_EVENT, "expose: window: %lu\n", e->xexpose.window);
2748 }
2749
2750 void
2751 keypress(XEvent *e)
2752 {
2753         unsigned int            i;
2754         KeySym                  keysym;
2755         XKeyEvent               *ev = &e->xkey;
2756
2757         DNPRINTF(SWM_D_EVENT, "keypress: window: %lu\n", ev->window);
2758
2759         keysym = XKeycodeToKeysym(display, (KeyCode)ev->keycode, 0);
2760         for (i = 0; i < keys_length; i++)
2761                 if (keysym == keys[i].keysym
2762                    && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
2763                    && keyfuncs[keys[i].funcid].func) {
2764                         if (keys[i].funcid == kf_spawn_custom)
2765                                 spawn_custom(
2766                                     root_to_region(ev->root),
2767                                     &(keyfuncs[keys[i].funcid].args),
2768                                     keys[i].spawn_name
2769                                     );
2770                         else
2771                                 keyfuncs[keys[i].funcid].func(
2772                                     root_to_region(ev->root),
2773                                     &(keyfuncs[keys[i].funcid].args)
2774                                     );
2775                 }
2776 }
2777
2778 void
2779 buttonpress(XEvent *e)
2780 {
2781         XButtonPressedEvent     *ev = &e->xbutton;
2782
2783         struct ws_win           *win;
2784         int                     i, action;
2785
2786         DNPRINTF(SWM_D_EVENT, "buttonpress: window: %lu\n", ev->window);
2787
2788         action = root_click;
2789         if ((win = find_window(ev->window)) == NULL)
2790                 return;
2791         else {
2792                 focus_win(win);
2793                 action = client_click;
2794         }
2795
2796         for (i = 0; i < LENGTH(buttons); i++)
2797                 if (action == buttons[i].action && buttons[i].func &&
2798                     buttons[i].button == ev->button &&
2799                     CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
2800                         buttons[i].func(win, &buttons[i].args);
2801 }
2802
2803 void
2804 set_win_state(struct ws_win *win, long state)
2805 {
2806         long                    data[] = {state, None};
2807
2808         DNPRINTF(SWM_D_EVENT, "set_win_state: window: %lu\n", win->id);
2809
2810         XChangeProperty(display, win->id, astate, astate, 32, PropModeReplace,
2811             (unsigned char *)data, 2);
2812 }
2813
2814 const char *quirkname[] = {
2815         "NONE",         /* config string for "no value" */
2816         "FLOAT",
2817         "TRANSSZ",
2818         "ANYWHERE",
2819         "XTERM_FONTADJ",
2820         "FULLSCREEN",
2821 };
2822
2823 /* SWM_Q_WS: retain '|' for back compat for now (2009-08-11) */
2824 #define SWM_Q_WS                "\n|+ \t"
2825 int
2826 parsequirks(char *qstr, unsigned long *quirk)
2827 {
2828         char                    *cp, *name;
2829         int                     i;
2830         if (quirk == NULL)
2831                 return (1);
2832         cp = qstr;
2833         *quirk = 0;
2834         while ((name = strsep(&cp, SWM_Q_WS)) != NULL) {
2835                 if (cp)
2836                         cp += (long)strspn(cp, SWM_Q_WS);
2837                 for (i = 0; i < LENGTH(quirkname); i++) {
2838                         if (!strncasecmp(name, quirkname[i], SWM_QUIRK_LEN)) {
2839                                 DNPRINTF(SWM_D_QUIRK, "parsequirks: %s\n", name);
2840                                 if (i == 0) {
2841                                         *quirk = 0;
2842                                         return (0);
2843                                 }
2844                                 *quirk |= 1 << (i-1);
2845                                 break;
2846                         }
2847                 }
2848                 if (i >= LENGTH(quirkname)) {
2849                         DNPRINTF(SWM_D_QUIRK,
2850                             "parsequirks: invalid quirk [%s]\n", name);
2851                         return (1);
2852                 }
2853         }
2854         return (0);
2855 }
2856 void
2857 setquirk(const char *class, const char *name, const int quirk)
2858 {
2859         int                     i, j;
2860         /* find existing */
2861         for (i = 0; i < quirks_length; i++) {
2862                 if (!strcmp(quirks[i].class, class) &&
2863                     !strcmp(quirks[i].name, name)) {
2864                         if (!quirk) {
2865                                 /* found: delete */
2866                                 DNPRINTF(SWM_D_QUIRK,
2867                                     "setquirk: delete #%d %s:%s\n",
2868                                     i, quirks[i].class, quirks[i].name);
2869                                 free(quirks[i].class);
2870                                 free(quirks[i].name);
2871                                 j = quirks_length - 1;
2872                                 if (i < j)
2873                                         quirks[i] = quirks[j];
2874                                 quirks_length--;
2875                                 return;
2876                         } else {
2877                                 /* found: replace */
2878                                 DNPRINTF(SWM_D_QUIRK,
2879                                     "setquirk: replace #%d %s:%s\n",
2880                                     i, quirks[i].class, quirks[i].name);
2881                                 free(quirks[i].class);
2882                                 free(quirks[i].name);
2883                                 quirks[i].class = strdup(class);
2884                                 quirks[i].name = strdup(name);
2885                                 quirks[i].quirk = quirk;
2886                                 return;
2887                         }
2888                 }
2889         }
2890         if (!quirk) {
2891                 fprintf(stderr,
2892                     "error: setquirk: cannot find class/name combination");
2893                 return;
2894         }
2895         /* not found: add */
2896         if (quirks_size == 0 || quirks == NULL) {
2897                 quirks_size = 4;
2898                 DNPRINTF(SWM_D_QUIRK, "setquirk: init list %d\n", quirks_size);
2899                 quirks = malloc((size_t)quirks_size * sizeof(struct quirk));
2900                 if (!quirks) {
2901                         fprintf(stderr, "setquirk: malloc failed\n");
2902                         perror(" failed");
2903                         quit(NULL, NULL);
2904                 }
2905         } else if (quirks_length == quirks_size) {
2906                 quirks_size *= 2;
2907                 DNPRINTF(SWM_D_QUIRK, "setquirk: grow list %d\n", quirks_size);
2908                 quirks = realloc(quirks, (size_t)quirks_size * sizeof(struct quirk));
2909                 if (!quirks) {
2910                         fprintf(stderr, "setquirk: realloc failed\n");
2911                         perror(" failed");
2912                         quit(NULL, NULL);
2913                 }
2914         }
2915         if (quirks_length < quirks_size) {
2916                 DNPRINTF(SWM_D_QUIRK, "setquirk: add %d\n", quirks_length);
2917                 j = quirks_length++;
2918                 quirks[j].class = strdup(class);
2919                 quirks[j].name = strdup(name);
2920                 quirks[j].quirk = quirk;
2921         } else {
2922                 fprintf(stderr, "quirks array problem?\n");
2923                 if (!quirks) {
2924                         fprintf(stderr, "quirks array problem!\n");
2925                         quit(NULL, NULL);
2926                 }
2927         }
2928 }
2929 int
2930 setconfquirk(char *selector, char *value, int flags)
2931 {
2932         char                    *cp, *class, *name;
2933         int                     retval;
2934         unsigned long           quirks;
2935         if (selector == NULL)
2936                 return (0);
2937         if ((cp = strchr(selector, ':')) == NULL)
2938                 return (0);
2939         *cp = '\0';
2940         class = selector;
2941         name = cp + 1;
2942         if ((retval = parsequirks(value, &quirks)) == 0)
2943                 setquirk(class, name, quirks);
2944         return (retval);
2945 }
2946
2947 void
2948 setup_quirks(void)
2949 {
2950         setquirk("MPlayer",             "xv",           SWM_Q_FLOAT | SWM_Q_FULLSCREEN);
2951         setquirk("OpenOffice.org 2.4",  "VCLSalFrame",  SWM_Q_FLOAT);
2952         setquirk("OpenOffice.org 3.0",  "VCLSalFrame",  SWM_Q_FLOAT);
2953         setquirk("Firefox-bin",         "firefox-bin",  SWM_Q_TRANSSZ);
2954         setquirk("Firefox",             "Dialog",       SWM_Q_FLOAT);
2955         setquirk("Gimp",                "gimp",         SWM_Q_FLOAT | SWM_Q_ANYWHERE);
2956         setquirk("XTerm",               "xterm",        SWM_Q_XTERM_FONTADJ);
2957         setquirk("xine",                "Xine Window",  SWM_Q_FLOAT | SWM_Q_ANYWHERE);
2958         setquirk("Xitk",                "Xitk Combo",   SWM_Q_FLOAT | SWM_Q_ANYWHERE);
2959         setquirk("xine",                "xine Panel",   SWM_Q_FLOAT | SWM_Q_ANYWHERE);
2960         setquirk("Xitk",                "Xine Window",  SWM_Q_FLOAT | SWM_Q_ANYWHERE);
2961         setquirk("xine",                "xine Video Fullscreen Window", SWM_Q_FULLSCREEN | SWM_Q_FLOAT);
2962         setquirk("pcb",                 "pcb",          SWM_Q_FLOAT);
2963 }
2964
2965 /* conf file stuff */
2966 #define SWM_CONF_FILE   "scrotwm.conf"
2967
2968 enum    { SWM_S_BAR_DELAY, SWM_S_BAR_ENABLED, SWM_S_CLOCK_ENABLED,
2969           SWM_S_CYCLE_EMPTY, SWM_S_CYCLE_VISIBLE, SWM_S_SS_ENABLED,
2970           SWM_S_TERM_WIDTH, SWM_S_TITLE_CLASS_ENABLED, SWM_S_TITLE_NAME_ENABLED,
2971           SWM_S_BAR_FONT, SWM_S_BAR_ACTION, SWM_S_SPAWN_TERM, SWM_S_SS_APP,
2972           SWM_S_DIALOG_RATIO };
2973
2974 int
2975 setconfvalue(char *selector, char *value, int flags)
2976 {
2977         switch (flags) {
2978         case SWM_S_BAR_DELAY:
2979                 bar_delay = atoi(value);
2980                 break;
2981         case SWM_S_BAR_ENABLED:
2982                 bar_enabled = atoi(value);
2983                 break;
2984         case SWM_S_CLOCK_ENABLED:
2985                 clock_enabled = atoi(value);
2986                 break;
2987         case SWM_S_CYCLE_EMPTY:
2988                 cycle_empty = atoi(value);
2989                 break;
2990         case SWM_S_CYCLE_VISIBLE:
2991                 cycle_visible = atoi(value);
2992                 break;
2993         case SWM_S_SS_ENABLED:
2994                 ss_enabled = atoi(value);
2995                 break;
2996         case SWM_S_TERM_WIDTH:
2997                 term_width = atoi(value);
2998                 break;
2999         case SWM_S_TITLE_CLASS_ENABLED:
3000                 title_class_enabled = atoi(value);
3001                 break;
3002         case SWM_S_TITLE_NAME_ENABLED:
3003                 title_name_enabled = atoi(value);
3004                 break;
3005         case SWM_S_BAR_FONT:
3006                 free(bar_fonts[0]);
3007                 if ((bar_fonts[0] = strdup(value)) == NULL)
3008                         err(1, "setconfvalue: bar_font");
3009                 break;
3010         case SWM_S_BAR_ACTION:
3011                 free(bar_argv[0]);
3012                 if ((bar_argv[0] = strdup(value)) == NULL)
3013                         err(1, "setconfvalue: bar_action");
3014                 break;
3015         case SWM_S_SPAWN_TERM:
3016                 free(spawn_term[0]);
3017                 if ((spawn_term[0] = strdup(value)) == NULL)
3018                         err(1, "setconfvalue: spawn_term");
3019                 break;
3020         case SWM_S_SS_APP:
3021                 break;
3022         case SWM_S_DIALOG_RATIO:
3023                 dialog_ratio = atof(value);
3024                 if (dialog_ratio > 1.0 || dialog_ratio <= .3)
3025                         dialog_ratio = .6;
3026                 break;
3027         default:
3028                 return (1);
3029         }
3030         return (0);
3031 }
3032
3033 int
3034 setconfmodkey(char *selector, char *value, int flags)
3035 {
3036         if (!strncasecmp(value, "Mod1", strlen("Mod1")))
3037                 update_modkey(Mod1Mask);
3038         else if (!strncasecmp(value, "Mod2", strlen("Mod2")))
3039                 update_modkey(Mod2Mask);
3040         else if (!strncasecmp(value, "Mod3", strlen("Mod3")))
3041                 update_modkey(Mod3Mask);
3042         else if (!strncasecmp(value, "Mod4", strlen("Mod4")))
3043                 update_modkey(Mod4Mask);
3044         else
3045                 return (1);
3046         return (0);
3047 }
3048
3049 int
3050 setconfcolor(char *selector, char *value, int flags)
3051 {
3052         setscreencolor(value, ((selector == NULL)?-1:atoi(selector)), flags);
3053         return (0);
3054 }
3055
3056 int
3057 setconfregion(char *selector, char *value, int flags)
3058 {
3059         custom_region(value);
3060         return (0);
3061 }
3062
3063 /* config options */
3064 struct config_option {
3065         char                    *optname;
3066         int (*func)(char*, char*, int);
3067         int funcflags;
3068 };
3069 struct config_option configopt[] = {
3070         { "bar_enabled",                setconfvalue,   SWM_S_BAR_ENABLED },
3071         { "bar_border",                 setconfcolor,   SWM_S_COLOR_BAR_BORDER },
3072         { "bar_color",                  setconfcolor,   SWM_S_COLOR_BAR },
3073         { "bar_font_color",             setconfcolor,   SWM_S_COLOR_BAR_FONT },
3074         { "bar_font",                   setconfvalue,   SWM_S_BAR_FONT },
3075         { "bar_action",                 setconfvalue,   SWM_S_BAR_ACTION },
3076         { "bar_delay",                  setconfvalue,   SWM_S_BAR_DELAY },
3077         { "bind",                       setconfbinding, 0 },
3078         { "clock_enabled",              setconfvalue,   SWM_S_CLOCK_ENABLED },
3079         { "color_focus",                setconfcolor,   SWM_S_COLOR_FOCUS },
3080         { "color_unfocus",              setconfcolor,   SWM_S_COLOR_UNFOCUS },
3081         { "cycle_empty",                setconfvalue,   SWM_S_CYCLE_EMPTY },
3082         { "cycle_visible",              setconfvalue,   SWM_S_CYCLE_VISIBLE },
3083         { "dialog_ratio",               setconfvalue,   SWM_S_DIALOG_RATIO },
3084         { "modkey",                     setconfmodkey,  0 },
3085         { "program",                    setconfspawn,   0 },
3086         { "quirk",                      setconfquirk,   0 },
3087         { "region",                     setconfregion,  0 },
3088         { "spawn_term",                 setconfvalue,   SWM_S_SPAWN_TERM },
3089         { "screenshot_enabled",         setconfvalue,   SWM_S_SS_ENABLED },
3090         { "screenshot_app",             setconfvalue,   SWM_S_SS_APP },
3091         { "term_width",                 setconfvalue,   SWM_S_TERM_WIDTH },
3092         { "title_class_enabled",        setconfvalue,   SWM_S_TITLE_CLASS_ENABLED },
3093         { "title_name_enabled",         setconfvalue,   SWM_S_TITLE_NAME_ENABLED }
3094 };
3095
3096
3097 int
3098 conf_load(char *filename)
3099 {
3100         FILE                    *config;
3101         char                    *line, *cp, *optsub, *optval;
3102         size_t                  linelen, lineno = 0;
3103         int                     wordlen, i, optind;
3104         struct config_option    *opt;
3105
3106         DNPRINTF(SWM_D_CONF, "conf_load begin\n");
3107
3108         if (filename == NULL) {
3109                 fprintf(stderr, "conf_load: no filename\n");
3110                 return (1);
3111         }
3112         if ((config = fopen(filename, "r")) == NULL) {
3113                 warn("conf_load: fopen");
3114                 return (1);
3115         }
3116
3117         while (!feof(config)) {
3118                 if ((line = fparseln(config, &linelen, &lineno, NULL, 0))
3119                     == NULL) {
3120                         if (ferror(config))
3121                                 err(1, "%s", filename);
3122                         else
3123                                 continue;
3124                 }
3125                 cp = line;
3126                 cp += strspn(cp, " \t\n"); /* eat whitespace */
3127                 if (cp[0] == '\0') {
3128                         /* empty line */
3129                         free(line);
3130                         continue;
3131                 }
3132                 /* get config option */
3133                 wordlen = strcspn(cp, "=[ \t\n");
3134                 if (wordlen == 0) {
3135                         warnx("%s: line %zd: no option found",
3136                             filename, lineno);
3137                         return (1);
3138                 }
3139                 optind = -1;
3140                 for (i = 0; i < LENGTH(configopt); i++) {
3141                         opt = &configopt[i];
3142                         if (!strncasecmp(cp, opt->optname, wordlen) &&
3143                             strlen(opt->optname) == wordlen) {
3144                                 optind = i;
3145                                 break;
3146                         }
3147                 }
3148                 if (optind == -1) {
3149                         warnx("%s: line %zd: unknown option %.*s",
3150                             filename, lineno, wordlen, cp);
3151                         return (1);
3152                 }
3153                 cp += wordlen;
3154                 cp += strspn(cp, " \t\n"); /* eat whitespace */
3155                 /* get [selector] if any */
3156                 optsub = NULL;
3157                 if (*cp == '[') {
3158                         cp++;
3159                         wordlen = strcspn(cp, "]");
3160                         if (*cp != ']') {
3161                                 if (wordlen == 0) {
3162                                         warnx("%s: line %zd: syntax error",
3163                                             filename, lineno);
3164                                         return (1);
3165                                 }
3166                                 asprintf(&optsub, "%.*s", wordlen, cp);
3167                         }
3168                         cp += wordlen;
3169                         cp += strspn(cp, "] \t\n"); /* eat trailing */
3170                 }
3171                 cp += strspn(cp, "= \t\n"); /* eat trailing */
3172                 /* get RHS value */
3173                 optval = strdup(cp);
3174                 /* call function to deal with it all */
3175                 if (configopt[optind].func(optsub, optval,
3176                     configopt[optind].funcflags) != 0) {
3177                         fprintf(stderr, "%s line %zd: %s\n",
3178                             filename, lineno, line);
3179                         errx(1, "%s: line %zd: invalid data for %s",
3180                             filename, lineno, configopt[optind].optname);
3181                 }
3182                 free(optval);
3183                 free(optsub);
3184                 free(line);
3185         }
3186
3187         fclose(config);
3188         DNPRINTF(SWM_D_CONF, "conf_load end\n");
3189
3190         return (0);
3191 }
3192
3193 struct ws_win *
3194 manage_window(Window id)
3195 {
3196         Window                  trans;
3197         struct workspace        *ws;
3198         struct ws_win           *win;
3199         int                     format, i, ws_idx, n;
3200         unsigned long           nitems, bytes;
3201         Atom                    ws_idx_atom = 0, type;
3202         Atom                    *prot = NULL, *pp;
3203         unsigned char           ws_idx_str[SWM_PROPLEN], *prop = NULL;
3204         struct swm_region       *r;
3205         long                    mask;
3206         const char              *errstr;
3207         XWindowChanges          wc;
3208
3209         if ((win = find_window(id)) != NULL)
3210                         return (win);   /* already being managed */
3211
3212         if ((win = calloc(1, sizeof(struct ws_win))) == NULL)
3213                 errx(1, "calloc: failed to allocate memory for new window");
3214
3215         /* Get all the window data in one shot */
3216         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
3217         if (ws_idx_atom)
3218                 XGetWindowProperty(display, id, ws_idx_atom, 0, SWM_PROPLEN,
3219                     False, XA_STRING, &type, &format, &nitems, &bytes, &prop);
3220         XGetWindowAttributes(display, id, &win->wa);
3221         XGetTransientForHint(display, id, &trans);
3222         XGetWMNormalHints(display, id, &win->sh, &mask); /* XXX function? */
3223         if (trans) {
3224                 win->transient = trans;
3225                 DNPRINTF(SWM_D_MISC, "manage_window: win %u transient %u\n",
3226                     (unsigned)win->id, win->transient);
3227         }
3228         /* get supported protocols */
3229         if (XGetWMProtocols(display, id, &prot, &n)) {
3230                 for (i = 0, pp = prot; i < n; i++, pp++)
3231                         if (*pp == adelete)
3232                                 win->can_delete = 1;
3233                 if (prot)
3234                         XFree(prot);
3235         }
3236
3237         /*
3238          * Figure out where to put the window. If it was previously assigned to
3239          * a workspace (either by spawn() or manually moving), and isn't
3240          * transient, * put it in the same workspace
3241          */
3242         r = root_to_region(win->wa.root);
3243         if (prop && win->transient == 0) {
3244                 DNPRINTF(SWM_D_PROP, "got property _SWM_WS=%s\n", prop);
3245                 ws_idx = strtonum(prop, 0, 9, &errstr);
3246                 if (errstr) {
3247                         DNPRINTF(SWM_D_EVENT, "window idx is %s: %s",
3248                             errstr, prop);
3249                 }
3250                 ws = &r->s->ws[ws_idx];
3251         } else
3252                 ws = r->ws;
3253
3254         /* set up the window layout */
3255         win->id = id;
3256         win->ws = ws;
3257         win->s = r->s;  /* this never changes */
3258         TAILQ_INSERT_TAIL(&ws->winlist, win, entry);
3259
3260         win->g.w = win->wa.width;
3261         win->g.h = win->wa.height;
3262         win->g.x = win->wa.x;
3263         win->g.y = win->wa.y;
3264
3265         /* Set window properties so we can remember this after reincarnation */
3266         if (ws_idx_atom && prop == NULL &&
3267             snprintf(ws_idx_str, SWM_PROPLEN, "%d", ws->idx) < SWM_PROPLEN) {
3268                 DNPRINTF(SWM_D_PROP, "setting property _SWM_WS to %s\n",
3269                     ws_idx_str);
3270                 XChangeProperty(display, win->id, ws_idx_atom, XA_STRING, 8,
3271                     PropModeReplace, ws_idx_str, SWM_PROPLEN);
3272         }
3273         XFree(prop);
3274
3275         if (XGetClassHint(display, win->id, &win->ch)) {
3276                 DNPRINTF(SWM_D_CLASS, "class: %s name: %s\n",
3277                     win->ch.res_class, win->ch.res_name);
3278                 for (i = 0; i < quirks_length; i++){
3279                         if (!strcmp(win->ch.res_class, quirks[i].class) &&
3280                             !strcmp(win->ch.res_name, quirks[i].name)) {
3281                                 DNPRINTF(SWM_D_CLASS, "found: %s name: %s\n",
3282                                     win->ch.res_class, win->ch.res_name);
3283                                 if (quirks[i].quirk & SWM_Q_FLOAT)
3284                                         win->floating = 1;
3285                                 win->quirks = quirks[i].quirk;
3286                         }
3287                 }
3288         }
3289
3290         /* alter window position if quirky */
3291         if (win->quirks & SWM_Q_ANYWHERE) {
3292                 win->manual = 1; /* don't center the quirky windows */
3293                 bzero(&wc, sizeof wc);
3294                 mask = 0;
3295                 if (win->g.y < bar_height) {
3296                         win->g.y = wc.y = bar_height;
3297                         mask |= CWY;
3298                 }
3299                 if (win->g.w + win->g.x > WIDTH(r)) {
3300                         win->g.x = wc.x = WIDTH(win->ws->r) - win->g.w - 2;
3301                         mask |= CWX;
3302                 }
3303                 wc.border_width = 1;
3304                 mask |= CWBorderWidth;
3305                 XConfigureWindow(display, win->id, mask, &wc);
3306         }
3307
3308         /* Reset font sizes (the bruteforce way; no default keybinding). */
3309         if (win->quirks & SWM_Q_XTERM_FONTADJ) {
3310                 for (i = 0; i < SWM_MAX_FONT_STEPS; i++)
3311                         fake_keypress(win, XK_KP_Subtract, ShiftMask);
3312                 for (i = 0; i < SWM_MAX_FONT_STEPS; i++)
3313                         fake_keypress(win, XK_KP_Add, ShiftMask);
3314         }
3315
3316         XSelectInput(display, id, EnterWindowMask | FocusChangeMask |
3317             PropertyChangeMask | StructureNotifyMask);
3318
3319         set_win_state(win, NormalState);
3320
3321         /* floaters need to be mapped if they are in the current workspace */
3322         if (win->floating && (ws->idx == r->ws->idx))
3323                 XMapRaised(display, win->id);
3324
3325         /* make new win focused */
3326         focus_win(win);
3327
3328         return (win);
3329 }
3330
3331 void
3332 unmanage_window(struct ws_win *win)
3333 {
3334         struct workspace        *ws;
3335
3336         if (win == NULL)
3337                 return;
3338
3339         DNPRINTF(SWM_D_MISC, "unmanage_window:  %lu\n", win->id);
3340
3341         ws = win->ws;
3342
3343         /* find a window to focus */
3344         if (ws->focus == win)
3345                 ws->focus = TAILQ_PREV(win, ws_win_list, entry);
3346         if (ws->focus == NULL)
3347                 ws->focus = TAILQ_FIRST(&ws->winlist);
3348         if (ws->focus == NULL || ws->focus == win) {
3349                 ws->focus = NULL;
3350                 unfocus_win(win);
3351         } else
3352                 focus_win(ws->focus);
3353         if (ws->focus_prev == win)
3354                 ws->focus_prev = NULL;
3355
3356         TAILQ_REMOVE(&win->ws->winlist, win, entry);
3357         set_win_state(win, WithdrawnState);
3358         if (win->ch.res_class)
3359                 XFree(win->ch.res_class);
3360         if (win->ch.res_name)
3361                 XFree(win->ch.res_name);
3362         free(win);
3363 }
3364
3365 void
3366 configurerequest(XEvent *e)
3367 {
3368         XConfigureRequestEvent  *ev = &e->xconfigurerequest;
3369         struct ws_win           *win;
3370         int                     new = 0;
3371         XWindowChanges          wc;
3372
3373         if ((win = find_window(ev->window)) == NULL)
3374                 new = 1;
3375
3376         if (new) {
3377                 DNPRINTF(SWM_D_EVENT, "configurerequest: new window: %lu\n",
3378                     ev->window);
3379                 bzero(&wc, sizeof wc);
3380                 wc.x = ev->x;
3381                 wc.y = ev->y;
3382                 wc.width = ev->width;
3383                 wc.height = ev->height;
3384                 wc.border_width = ev->border_width;
3385                 wc.sibling = ev->above;
3386                 wc.stack_mode = ev->detail;
3387                 XConfigureWindow(display, ev->window, ev->value_mask, &wc);
3388         } else {
3389                 DNPRINTF(SWM_D_EVENT, "configurerequest: change window: %lu\n",
3390                     ev->window);
3391                 if (win->floating) {
3392                         if (ev->value_mask & CWX)
3393                                 win->g.x = ev->x;
3394                         if (ev->value_mask & CWY)
3395                                 win->g.y = ev->y;
3396                         if (ev->value_mask & CWWidth)
3397                                 win->g.w = ev->width;
3398                         if (ev->value_mask & CWHeight)
3399                                 win->g.h = ev->height;
3400                         if (win->ws->r != NULL) {
3401                                 /* this seems to be full screen */
3402                                 if (win->g.w >= WIDTH(win->ws->r)) {
3403                                         win->g.x = 0;
3404                                         win->g.w = WIDTH(win->ws->r);
3405                                         ev->value_mask |= CWX | CWWidth;
3406                                 }
3407                                 if (win->g.h >= HEIGHT(win->ws->r)) {
3408                                         /* kill border */
3409                                         win->g.y = 0;
3410                                         win->g.h = HEIGHT(win->ws->r);
3411                                         ev->value_mask |= CWY | CWHeight;
3412                                 }
3413                         }
3414                         if ((ev->value_mask & (CWX | CWY)) &&
3415                             !(ev->value_mask & (CWWidth | CWHeight)))
3416                                 config_win(win);
3417                         XMoveResizeWindow(display, win->id,
3418                             win->g.x, win->g.y, win->g.w, win->g.h);
3419                 } else
3420                         config_win(win);
3421         }
3422 }
3423
3424 void
3425 configurenotify(XEvent *e)
3426 {
3427         struct ws_win           *win;
3428         long                    mask;
3429
3430         DNPRINTF(SWM_D_EVENT, "configurenotify: window: %lu\n",
3431             e->xconfigure.window);
3432
3433         XMapWindow(display, e->xconfigure.window);
3434         win = find_window(e->xconfigure.window);
3435         if (win) {
3436                 XGetWMNormalHints(display, win->id, &win->sh, &mask);
3437                 adjust_font(win);
3438                 XMapWindow(display, win->id);
3439                 if (font_adjusted)
3440                         stack();
3441         }
3442 }
3443
3444 void
3445 destroynotify(XEvent *e)
3446 {
3447         struct ws_win           *win;
3448         XDestroyWindowEvent     *ev = &e->xdestroywindow;
3449
3450         DNPRINTF(SWM_D_EVENT, "destroynotify: window %lu\n", ev->window);
3451
3452         if ((win = find_window(ev->window)) != NULL) {
3453                 unmanage_window(win);
3454                 stack();
3455         }
3456 }
3457
3458 void
3459 enternotify(XEvent *e)
3460 {
3461         XCrossingEvent          *ev = &e->xcrossing;
3462         struct ws_win           *win;
3463
3464         DNPRINTF(SWM_D_EVENT, "enternotify: window: %lu\n", ev->window);
3465
3466         if (ignore_enter) {
3467                 /* eat event(r) to prevent autofocus */
3468                 ignore_enter--;
3469                 return;
3470         }
3471
3472         if ((win = find_window(ev->window)) != NULL)
3473                 focus_win(win);
3474 }
3475
3476 void
3477 focusin(XEvent *e)
3478 {
3479         DNPRINTF(SWM_D_EVENT, "focusin: window: %lu\n", e->xfocus.window);
3480 }
3481
3482 void
3483 focusout(XEvent *e)
3484 {
3485         struct swm_screen       *s;
3486         struct ws_win           *win, *cur_focus;
3487         Window                  rr, cr;
3488         int                     x, y, wx, wy;
3489         unsigned int            mask;
3490
3491         DNPRINTF(SWM_D_EVENT, "focusout: window: %lu\n", e->xfocus.window);
3492
3493         win = find_window(e->xany.window);
3494         if (win)
3495                 cur_focus = win->ws->focus;
3496
3497         if (cur_focus && cur_focus->ws->r &&
3498             cur_focus->id == e->xfocus.window) {
3499                 s = cur_focus->ws->r->s;
3500                 if (XQueryPointer(display, cur_focus->id,
3501                     &rr, &cr, &x, &y, &wx, &wy, &mask) != False &&
3502                     cr == 0 && !mask &&
3503                     x == DisplayWidth(display, s->idx) / 2 &&
3504                     y == DisplayHeight(display, s->idx) / 2)
3505                         unfocus_win(cur_focus);
3506         }
3507 }
3508
3509 void
3510 mappingnotify(XEvent *e)
3511 {
3512         XMappingEvent           *ev = &e->xmapping;
3513
3514         DNPRINTF(SWM_D_EVENT, "mappingnotify: window: %lu\n", ev->window);
3515
3516         XRefreshKeyboardMapping(ev);
3517         if (ev->request == MappingKeyboard)
3518                 grabkeys();
3519 }
3520
3521 void
3522 maprequest(XEvent *e)
3523 {
3524         XMapRequestEvent        *ev = &e->xmaprequest;
3525         XWindowAttributes       wa;
3526
3527         DNPRINTF(SWM_D_EVENT, "maprequest: window: %lu\n",
3528             e->xmaprequest.window);
3529
3530         if (!XGetWindowAttributes(display, ev->window, &wa))
3531                 return;
3532         if (wa.override_redirect)
3533                 return;
3534         manage_window(e->xmaprequest.window);
3535
3536         stack();
3537 }
3538
3539 void
3540 propertynotify(XEvent *e)
3541 {
3542         struct ws_win           *win;
3543         XPropertyEvent          *ev = &e->xproperty;
3544
3545         DNPRINTF(SWM_D_EVENT, "propertynotify: window: %lu\n",
3546             ev->window);
3547
3548         if (ev->state == PropertyDelete)
3549                 return; /* ignore */
3550         win = find_window(ev->window);
3551         if (win == NULL)
3552                 return;
3553
3554         switch (ev->atom) {
3555         case XA_WM_NORMAL_HINTS:
3556 #if 0
3557                 long            mask;
3558                 XGetWMNormalHints(display, win->id, &win->sh, &mask);
3559                 fprintf(stderr, "normal hints: flag 0x%x\n", win->sh.flags);
3560                 if (win->sh.flags & PMinSize) {
3561                         win->g.w = win->sh.min_width;
3562                         win->g.h = win->sh.min_height;
3563                         fprintf(stderr, "min %d %d\n", win->g.w, win->g.h);
3564                 }
3565                 XMoveResizeWindow(display, win->id,
3566                     win->g.x, win->g.y, win->g.w, win->g.h);
3567 #endif
3568                 break;
3569         default:
3570                 break;
3571         }
3572 }
3573
3574 void
3575 unmapnotify(XEvent *e)
3576 {
3577         DNPRINTF(SWM_D_EVENT, "unmapnotify: window: %lu\n", e->xunmap.window);
3578 }
3579
3580 void
3581 visibilitynotify(XEvent *e)
3582 {
3583         int                     i;
3584         struct swm_region       *r;
3585
3586         DNPRINTF(SWM_D_EVENT, "visibilitynotify: window: %lu\n",
3587             e->xvisibility.window);
3588         if (e->xvisibility.state == VisibilityUnobscured)
3589                 for (i = 0; i < ScreenCount(display); i++)
3590                         TAILQ_FOREACH(r, &screens[i].rl, entry)
3591                                 if (e->xvisibility.window == r->bar_window)
3592                                         bar_update();
3593 }
3594
3595 int
3596 xerror_start(Display *d, XErrorEvent *ee)
3597 {
3598         other_wm = 1;
3599         return (-1);
3600 }
3601
3602 int
3603 xerror(Display *d, XErrorEvent *ee)
3604 {
3605         /* fprintf(stderr, "error: %p %p\n", display, ee); */
3606         return (-1);
3607 }
3608
3609 int
3610 active_wm(void)
3611 {
3612         other_wm = 0;
3613         xerrorxlib = XSetErrorHandler(xerror_start);
3614
3615         /* this causes an error if some other window manager is running */
3616         XSelectInput(display, DefaultRootWindow(display),
3617             SubstructureRedirectMask);
3618         XSync(display, False);
3619         if (other_wm)
3620                 return (1);
3621
3622         XSetErrorHandler(xerror);
3623         XSync(display, False);
3624         return (0);
3625 }
3626
3627 long
3628 getstate(Window w)
3629 {
3630         int                     format, status;
3631         long                    result = -1;
3632         unsigned char           *p = NULL;
3633         unsigned long           n, extra;
3634         Atom                    real;
3635
3636         status = XGetWindowProperty(display, w, astate, 0L, 2L, False, astate,
3637             &real, &format, &n, &extra, (unsigned char **)&p);
3638         if (status != Success)
3639                 return (-1);
3640         if (n != 0)
3641                 result = *((long *)p);
3642         XFree(p);
3643         return (result);
3644 }
3645
3646 void
3647 new_region(struct swm_screen *s, int x, int y, int w, int h)
3648 {
3649         struct swm_region       *r, *n;
3650         struct workspace        *ws = NULL;
3651         int                     i;
3652
3653         DNPRINTF(SWM_D_MISC, "new region: screen[%d]:%dx%d+%d+%d\n",
3654              s->idx, w, h, x, y);
3655
3656         /* remove any conflicting regions */
3657         n = TAILQ_FIRST(&s->rl);
3658         while (n) {
3659                 r = n;
3660                 n = TAILQ_NEXT(r, entry);
3661                 if (X(r) < (x + w) &&
3662                     (X(r) + WIDTH(r)) > x &&
3663                     Y(r) < (y + h) &&
3664                     (Y(r) + HEIGHT(r)) > y) {
3665                         XDestroyWindow(display, r->bar_window);
3666                         TAILQ_REMOVE(&s->rl, r, entry);
3667                         TAILQ_INSERT_TAIL(&s->orl, r, entry);
3668                 }
3669         }
3670
3671         /* search old regions for one to reuse */
3672
3673         /* size + location match */
3674         TAILQ_FOREACH(r, &s->orl, entry)
3675                 if (X(r) == x && Y(r) == y &&
3676                     HEIGHT(r) == h && WIDTH(r) == w)
3677                         break;
3678
3679         /* size match */
3680         TAILQ_FOREACH(r, &s->orl, entry)
3681                 if (HEIGHT(r) == h && WIDTH(r) == w)
3682                         break;
3683
3684         if (r != NULL) {
3685                 TAILQ_REMOVE(&s->orl, r, entry);
3686                 /* try to use old region's workspace */
3687                 if (r->ws->r == NULL)
3688                         ws = r->ws;
3689         } else
3690                 if ((r = calloc(1, sizeof(struct swm_region))) == NULL)
3691                         errx(1, "calloc: failed to allocate memory for screen");
3692
3693         /* if we don't have a workspace already, find one */
3694         if (ws == NULL) {
3695                 for (i = 0; i < SWM_WS_MAX; i++)
3696                         if (s->ws[i].r == NULL) {
3697                                 ws = &s->ws[i];
3698                                 break;
3699                         }
3700         }
3701
3702         if (ws == NULL)
3703                 errx(1, "no free workspaces\n");
3704
3705         X(r) = x;
3706         Y(r) = y;
3707         WIDTH(r) = w;
3708         HEIGHT(r) = h;
3709         r->s = s;
3710         r->ws = ws;
3711         ws->r = r;
3712         TAILQ_INSERT_TAIL(&s->rl, r, entry);
3713 }
3714
3715 void
3716 scan_xrandr(int i)
3717 {
3718 #ifdef SWM_XRR_HAS_CRTC
3719         XRRCrtcInfo             *ci;
3720         XRRScreenResources      *sr;
3721         int                     c;
3722         int                     ncrtc = 0;
3723 #endif /* SWM_XRR_HAS_CRTC */
3724         struct swm_region       *r;
3725
3726
3727         if (i >= ScreenCount(display))
3728                 errx(1, "invalid screen");
3729
3730         /* remove any old regions */
3731         while ((r = TAILQ_FIRST(&screens[i].rl)) != NULL) {
3732                 r->ws->r = NULL;
3733                 XDestroyWindow(display, r->bar_window);
3734                 TAILQ_REMOVE(&screens[i].rl, r, entry);
3735                 TAILQ_INSERT_TAIL(&screens[i].orl, r, entry);
3736         }
3737
3738         /* map virtual screens onto physical screens */
3739 #ifdef SWM_XRR_HAS_CRTC
3740         if (xrandr_support) {
3741                 sr = XRRGetScreenResources(display, screens[i].root);
3742                 if (sr == NULL)
3743                         new_region(&screens[i], 0, 0,
3744                             DisplayWidth(display, i),
3745                             DisplayHeight(display, i));
3746                 else
3747                         ncrtc = sr->ncrtc;
3748
3749                 for (c = 0, ci = NULL; c < ncrtc; c++) {
3750                         ci = XRRGetCrtcInfo(display, sr, sr->crtcs[c]);
3751                         if (ci->noutput == 0)
3752                                 continue;
3753
3754                         if (ci != NULL && ci->mode == None)
3755                                 new_region(&screens[i], 0, 0,
3756                                     DisplayWidth(display, i),
3757                                     DisplayHeight(display, i));
3758                         else
3759                                 new_region(&screens[i],
3760                                     ci->x, ci->y, ci->width, ci->height);
3761                 }
3762                 if (ci)
3763                         XRRFreeCrtcInfo(ci);
3764                 XRRFreeScreenResources(sr);
3765         } else
3766 #endif /* SWM_XRR_HAS_CRTC */
3767         {
3768                 new_region(&screens[i], 0, 0, DisplayWidth(display, i),
3769                     DisplayHeight(display, i));
3770         }
3771 }
3772
3773 void
3774 screenchange(XEvent *e) {
3775         XRRScreenChangeNotifyEvent      *xe = (XRRScreenChangeNotifyEvent *)e;
3776         struct swm_region               *r;
3777         struct ws_win                   *win;
3778         int                             i;
3779
3780         DNPRINTF(SWM_D_EVENT, "screenchange: %lu\n", xe->root);
3781
3782         if (!XRRUpdateConfiguration(e))
3783                 return;
3784
3785         /* silly event doesn't include the screen index */
3786         for (i = 0; i < ScreenCount(display); i++)
3787                 if (screens[i].root == xe->root)
3788                         break;
3789         if (i >= ScreenCount(display))
3790                 errx(1, "screenchange: screen not found\n");
3791
3792         /* brute force for now, just re-enumerate the regions */
3793         scan_xrandr(i);
3794
3795         /* hide any windows that went away */
3796         TAILQ_FOREACH(r, &screens[i].rl, entry)
3797                 TAILQ_FOREACH(win, &r->ws->winlist, entry)
3798                         XUnmapWindow(display, win->id);
3799
3800         /* add bars to all regions */
3801         for (i = 0; i < ScreenCount(display); i++)
3802                 TAILQ_FOREACH(r, &screens[i].rl, entry)
3803                         bar_setup(r);
3804         stack();
3805 }
3806
3807 void
3808 setup_screens(void)
3809 {
3810         Window                  d1, d2, *wins = NULL;
3811         XWindowAttributes       wa;
3812         unsigned int            no;
3813         int                     i, j, k;
3814         int                     errorbase, major, minor;
3815         struct workspace        *ws;
3816         int                     ws_idx_atom;
3817
3818
3819         if ((screens = calloc(ScreenCount(display),
3820              sizeof(struct swm_screen))) == NULL)
3821                 errx(1, "calloc: screens");
3822
3823         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
3824
3825         /* initial Xrandr setup */
3826         xrandr_support = XRRQueryExtension(display,
3827             &xrandr_eventbase, &errorbase);
3828         if (xrandr_support)
3829                 if (XRRQueryVersion(display, &major, &minor) && major < 1)
3830                         xrandr_support = 0;
3831
3832         /* map physical screens */
3833         for (i = 0; i < ScreenCount(display); i++) {
3834                 DNPRINTF(SWM_D_WS, "setup_screens: init screen %d\n", i);
3835                 screens[i].idx = i;
3836                 TAILQ_INIT(&screens[i].rl);
3837                 TAILQ_INIT(&screens[i].orl);
3838                 screens[i].root = RootWindow(display, i);
3839
3840                 /* set default colors */
3841                 setscreencolor("red", i + 1, SWM_S_COLOR_FOCUS);
3842                 setscreencolor("rgb:88/88/88", i + 1, SWM_S_COLOR_UNFOCUS);
3843                 setscreencolor("rgb:00/80/80", i + 1, SWM_S_COLOR_BAR_BORDER);
3844                 setscreencolor("black", i + 1, SWM_S_COLOR_BAR);
3845                 setscreencolor("rgb:a0/a0/a0", i + 1, SWM_S_COLOR_BAR_FONT);
3846
3847                 /* init all workspaces */
3848                 /* XXX these should be dynamically allocated too */
3849                 for (j = 0; j < SWM_WS_MAX; j++) {
3850                         ws = &screens[i].ws[j];
3851                         ws->idx = j;
3852                         ws->restack = 1;
3853                         ws->focus = NULL;
3854                         ws->r = NULL;
3855                         TAILQ_INIT(&ws->winlist);
3856
3857                         for (k = 0; layouts[k].l_stack != NULL; k++)
3858                                 if (layouts[k].l_config != NULL)
3859                                         layouts[k].l_config(ws,
3860                                             SWM_ARG_ID_STACKINIT);
3861                         ws->cur_layout = &layouts[0];
3862                 }
3863                 /* grab existing windows (before we build the bars)*/
3864                 if (!XQueryTree(display, screens[i].root, &d1, &d2, &wins, &no))
3865                         continue;
3866
3867                 scan_xrandr(i);
3868
3869                 if (xrandr_support)
3870                         XRRSelectInput(display, screens[i].root,
3871                             RRScreenChangeNotifyMask);
3872
3873                 /* attach windows to a region */
3874                 /* normal windows */
3875                 for (j = 0; j < no; j++) {
3876                         XGetWindowAttributes(display, wins[j], &wa);
3877                         if (!XGetWindowAttributes(display, wins[j], &wa) ||
3878                             wa.override_redirect ||
3879                             XGetTransientForHint(display, wins[j], &d1))
3880                                 continue;
3881
3882                         if (wa.map_state == IsViewable ||
3883                             getstate(wins[j]) == NormalState)
3884                                 manage_window(wins[j]);
3885                 }
3886                 /* transient windows */
3887                 for (j = 0; j < no; j++) {
3888                         if (!XGetWindowAttributes(display, wins[j], &wa))
3889                                 continue;
3890
3891                         if (XGetTransientForHint(display, wins[j], &d1) &&
3892                             (wa.map_state == IsViewable || getstate(wins[j]) ==
3893                             NormalState))
3894                                 manage_window(wins[j]);
3895                 }
3896                 if (wins) {
3897                         XFree(wins);
3898                         wins = NULL;
3899                 }
3900         }
3901 }
3902 void
3903 setup_globals(void)
3904 {
3905         if ((bar_fonts[0] = strdup("-*-terminus-medium-*-*-*-*-*-*-*-*-*-*-*"))
3906             == NULL)
3907                 err(1, "setup_globals: strdup");
3908         if ((bar_fonts[1] = strdup("-*-times-medium-r-*-*-*-*-*-*-*-*-*-*"))
3909             == NULL)
3910                 err(1, "setup_globals: strdup");
3911         if ((spawn_term[0] = strdup("xterm")) == NULL)
3912                 err(1, "setup_globals: strdup");
3913 }
3914
3915 void
3916 workaround(void)
3917 {
3918         int                     i;
3919         Atom                    netwmcheck, netwmname, utf8_string;
3920         Window                  root;
3921
3922         /* work around sun jdk bugs, code from wmname */
3923         netwmcheck = XInternAtom(display, "_NET_SUPPORTING_WM_CHECK", False);
3924         netwmname = XInternAtom(display, "_NET_WM_NAME", False);
3925         utf8_string = XInternAtom(display, "UTF8_STRING", False);
3926         for (i = 0; i < ScreenCount(display); i++) {
3927                 root = screens[i].root;
3928                 XChangeProperty(display, root, netwmcheck, XA_WINDOW, 32,
3929                     PropModeReplace, (unsigned char *)&root, 1);
3930                 XChangeProperty(display, root, netwmname, utf8_string, 8,
3931                     PropModeReplace, "LG3D", strlen("LG3D"));
3932         }
3933 }
3934
3935 int
3936 main(int argc, char *argv[])
3937 {
3938         struct passwd           *pwd;
3939         struct swm_region       *r;
3940         struct swm_win          *winfocus = NULL;
3941         char                    conf[PATH_MAX], *cfile = NULL;
3942         struct stat             sb;
3943         XEvent                  e;
3944         int                     xfd, i;
3945         fd_set                  rd;
3946
3947         start_argv = argv;
3948         fprintf(stderr, "Welcome to scrotwm V%s cvs tag: %s\n",
3949             SWM_VERSION, cvstag);
3950         if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
3951                 warnx("no locale support");
3952
3953         if (!(display = XOpenDisplay(0)))
3954                 errx(1, "can not open display");
3955
3956         if (active_wm())
3957                 errx(1, "other wm running");
3958
3959         /* handle some signale */
3960         installsignal(SIGINT, "INT");
3961         installsignal(SIGHUP, "HUP");
3962         installsignal(SIGQUIT, "QUIT");
3963         installsignal(SIGTERM, "TERM");
3964         installsignal(SIGCHLD, "CHLD");
3965
3966         astate = XInternAtom(display, "WM_STATE", False);
3967         aprot = XInternAtom(display, "WM_PROTOCOLS", False);
3968         adelete = XInternAtom(display, "WM_DELETE_WINDOW", False);
3969
3970         /* look for local and global conf file */
3971         pwd = getpwuid(getuid());
3972         if (pwd == NULL)
3973                 errx(1, "invalid user %d", getuid());
3974
3975         setup_screens();
3976         setup_globals();
3977         setup_keys();
3978         setup_quirks();
3979         setup_spawn();
3980
3981         snprintf(conf, sizeof conf, "%s/.%s", pwd->pw_dir, SWM_CONF_FILE);
3982         if (stat(conf, &sb) != -1) {
3983                 if (S_ISREG(sb.st_mode))
3984                         cfile = conf;
3985         } else {
3986                 /* try global conf file */
3987                 snprintf(conf, sizeof conf, "/etc/%s", SWM_CONF_FILE);
3988                 if (!stat(conf, &sb))
3989                         if (S_ISREG(sb.st_mode))
3990                                 cfile = conf;
3991         }
3992         if (cfile)
3993                 conf_load(cfile);
3994
3995         /* setup all bars */
3996         for (i = 0; i < ScreenCount(display); i++)
3997                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
3998                         if (winfocus == NULL)
3999                                 winfocus = TAILQ_FIRST(&r->ws->winlist);
4000                         bar_setup(r);
4001                 }
4002
4003         /* set some values to work around bad programs */
4004         workaround();
4005
4006         grabkeys();
4007         stack();
4008
4009         xfd = ConnectionNumber(display);
4010         while (running) {
4011                 while (XPending(display)) {
4012                         XNextEvent(display, &e);
4013                         if (e.type < LASTEvent) {
4014                                 dumpevent(&e);
4015                                 if (handler[e.type])
4016                                         handler[e.type](&e);
4017                                 else
4018                                         DNPRINTF(SWM_D_EVENT,
4019                                             "win: %lu unknown event: %d\n",
4020                                             e.xany.window, e.type);
4021                         } else {
4022                                 switch (e.type - xrandr_eventbase) {
4023                                 case RRScreenChangeNotify:
4024                                         screenchange(&e);
4025                                         break;
4026                                 default:
4027                                         DNPRINTF(SWM_D_EVENT,
4028                                             "win: %lu unknown xrandr event: "
4029                                             "%d\n", e.xany.window, e.type);
4030                                         break;
4031                                 }
4032                         }
4033                 }
4034
4035                 /* if we are being restarted go focus on first window */
4036                 if (winfocus) {
4037                         focus_win(winfocus);
4038                         winfocus = NULL;
4039                         continue;
4040                 }
4041
4042                 FD_ZERO(&rd);
4043                 FD_SET(xfd, &rd);
4044                 if (select(xfd + 1, &rd, NULL, NULL, NULL) == -1)
4045                         if (errno != EINTR)
4046                                 errx(1, "select failed");
4047                 if (bar_alarm) {
4048                         bar_alarm = 0;
4049                         bar_update();
4050                 }
4051         }
4052
4053         bar_extra_stop();
4054
4055         XCloseDisplay(display);
4056
4057         return (0);
4058 }