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 #define SWM_EV_PROLOGUE(x)      do { XGrabServer(x); } while (0)
 152 #define SWM_EV_EPILOGUE(x)      do { XUngrabServer(x); XFlush(x); } while (0)
 153
 154 #ifndef SWM_LIB
 155 #define SWM_LIB                 "/usr/local/lib/libswmhack.so"
 156 #endif
 157
 158 char                    **start_argv;
 159 Atom                    astate;
 160 Atom                    aprot;
 161 Atom                    adelete;
 162 volatile sig_atomic_t   running = 1;
 163 int                     outputs = 0;
 164 int                     (*xerrorxlib)(Display *, XErrorEvent *);
 165 int                     other_wm;
 166 int                     ss_enabled = 0;
 167 int                     xrandr_support;
 168 int                     xrandr_eventbase;
 169 int                     ignore_enter = 0;
 170 unsigned int            numlockmask = 0;
 171 Display                 *display;
 172
 173 int                     cycle_empty = 0;
 174 int                     cycle_visible = 0;
 175 int                     term_width = 0;
 176 int                     font_adjusted = 0;
 177 unsigned int            mod_key = MODKEY;
 178
 179 /* dialog windows */
 180 double                  dialog_ratio = .6;
 181 /* status bar */
 182 #define SWM_BAR_MAX     (256)
 183 char                    *bar_argv[] = { NULL, NULL };
 184 int                     bar_pipe[2];
 185 char                    bar_ext[SWM_BAR_MAX];
 186 char                    bar_vertext[SWM_BAR_MAX];
 187 int                     bar_version = 0;
 188 sig_atomic_t            bar_alarm = 0;
 189 int                     bar_delay = 30;
 190 int                     bar_enabled = 1;
 191 int                     bar_extra = 1;
 192 int                     bar_extra_running = 0;
 193 int                     bar_verbose = 1;
 194 int                     bar_height = 0;
 195 int                     clock_enabled = 1;
 196 int                     title_name_enabled = 0;
 197 int                     title_class_enabled = 0;
 198 pid_t                   bar_pid;
 199 GC                      bar_gc;
 200 XGCValues               bar_gcv;
 201 int                     bar_fidx = 0;
 202 XFontStruct             *bar_fs;
 203 char                    *bar_fonts[] = { NULL, NULL, NULL, NULL };/* XXX Make fully dynamic */
 204 char                    *spawn_term[] = { NULL, NULL };         /* XXX Make fully dynamic */
 205
 206 #define SWM_MENU_FN     (2)
 207 #define SWM_MENU_NB     (4)
 208 #define SWM_MENU_NF     (6)
 209 #define SWM_MENU_SB     (8)
 210 #define SWM_MENU_SF     (10)
 211
 212 /* layout manager data */
 213 struct swm_geometry {
 214         int                     x;
 215         int                     y;
 216         int                     w;
 217         int                     h;
 218 };
 219
 220 struct swm_screen;
 221 struct workspace;
 222
 223 /* virtual "screens" */
 224 struct swm_region {
 225         TAILQ_ENTRY(swm_region) entry;
 226         struct swm_geometry     g;
 227         struct workspace        *ws;    /* current workspace on this region */
 228         struct swm_screen       *s;     /* screen idx */
 229         Window                  bar_window;
 230 };
 231 TAILQ_HEAD(swm_region_list, swm_region);
 232
 233 struct ws_win {
 234         TAILQ_ENTRY(ws_win)     entry;
 235         Window                  id;
 236         struct swm_geometry     g;
 237         int                     floating;
 238         int                     transient;
 239         int                     manual;
 240         int                     font_size_boundary[SWM_MAX_FONT_STEPS];
 241         int                     font_steps;
 242         int                     last_inc;
 243         int                     can_delete;
 244         unsigned long           quirks;
 245         struct workspace        *ws;    /* always valid */
 246         struct swm_screen       *s;     /* always valid, never changes */
 247         XWindowAttributes       wa;
 248         XSizeHints              sh;
 249         XClassHint              ch;
 250 };
 251 TAILQ_HEAD(ws_win_list, ws_win);
 252
 253 /* user/key callable function IDs */
 254 enum keyfuncid {
 255         kf_cycle_layout,
 256         kf_stack_reset,
 257         kf_master_shrink,
 258         kf_master_grow,
 259         kf_master_add,
 260         kf_master_del,
 261         kf_stack_inc,
 262         kf_stack_dec,
 263         kf_swap_main,
 264         kf_focus_next,
 265         kf_focus_prev,
 266         kf_swap_next,
 267         kf_swap_prev,
 268         kf_spawn_term,
 269         kf_spawn_menu,
 270         kf_quit,
 271         kf_restart,
 272         kf_focus_main,
 273         kf_ws_1,
 274         kf_ws_2,
 275         kf_ws_3,
 276         kf_ws_4,
 277         kf_ws_5,
 278         kf_ws_6,
 279         kf_ws_7,
 280         kf_ws_8,
 281         kf_ws_9,
 282         kf_ws_10,
 283         kf_ws_next,
 284         kf_ws_prev,
 285         kf_screen_next,
 286         kf_screen_prev,
 287         kf_mvws_1,
 288         kf_mvws_2,
 289         kf_mvws_3,
 290         kf_mvws_4,
 291         kf_mvws_5,
 292         kf_mvws_6,
 293         kf_mvws_7,
 294         kf_mvws_8,
 295         kf_mvws_9,
 296         kf_mvws_10,
 297         kf_bar_toggle,
 298         kf_wind_kill,
 299         kf_wind_del,
 300         kf_screenshot_all,
 301         kf_screenshot_wind,
 302         kf_float_toggle,
 303         kf_version,
 304         kf_spawn_lock,
 305         kf_spawn_initscr,
 306         kf_spawn_custom,
 307         kf_invalid
 308 };
 309
 310 /* layout handlers */
 311 void    stack(void);
 312 void    vertical_config(struct workspace *, int);
 313 void    vertical_stack(struct workspace *, struct swm_geometry *);
 314 void    horizontal_config(struct workspace *, int);
 315 void    horizontal_stack(struct workspace *, struct swm_geometry *);
 316 void    max_stack(struct workspace *, struct swm_geometry *);
 317
 318 void    grabbuttons(struct ws_win *, int);
 319 void    new_region(struct swm_screen *, int, int, int, int);
 320
 321 struct layout {
 322         void            (*l_stack)(struct workspace *, struct swm_geometry *);
 323         void            (*l_config)(struct workspace *, int);
 324 } layouts[] =  {
 325         /* stack,               configure */
 326         { vertical_stack,       vertical_config},
 327         { horizontal_stack,     horizontal_config},
 328         { max_stack,            NULL},
 329         { NULL,                 NULL},
 330 };
 331
 332 #define SWM_H_SLICE             (32)
 333 #define SWM_V_SLICE             (32)
 334
 335 /* define work spaces */
 336 struct workspace {
 337         int                     idx;            /* workspace index */
 338         int                     restack;        /* restack on switch */
 339         struct layout           *cur_layout;    /* current layout handlers */
 340         struct ws_win           *focus;         /* may be NULL */
 341         struct ws_win           *focus_prev;    /* may be NULL */
 342         struct swm_region       *r;             /* may be NULL */
 343         struct swm_region       *old_r;         /* may be NULL */
 344         struct ws_win_list      winlist;        /* list of windows in ws */
 345
 346         /* stacker state */
 347         struct {
 348                                 int horizontal_msize;
 349                                 int horizontal_mwin;
 350                                 int horizontal_stacks;
 351                                 int vertical_msize;
 352                                 int vertical_mwin;
 353                                 int vertical_stacks;
 354         } l_state;
 355 };
 356
 357 enum    { SWM_S_COLOR_BAR, SWM_S_COLOR_BAR_BORDER, SWM_S_COLOR_BAR_FONT,
 358           SWM_S_COLOR_FOCUS, SWM_S_COLOR_UNFOCUS, SWM_S_COLOR_MAX };
 359
 360 /* physical screen mapping */
 361 #define SWM_WS_MAX              (10)            /* XXX Too small? */
 362 struct swm_screen {
 363         int                     idx;            /* screen index */
 364         struct swm_region_list  rl;     /* list of regions on this screen */
 365         struct swm_region_list  orl;    /* list of old regions */
 366         Window                  root;
 367         struct workspace        ws[SWM_WS_MAX];
 368
 369         /* colors */
 370         struct {
 371                 unsigned long   color;
 372                 char            *name;
 373         } c[SWM_S_COLOR_MAX];
 374 };
 375 struct swm_screen       *screens;
 376 int                     num_screens;
 377
 378 /* args to functions */
 379 union arg {
 380         int                     id;
 381 #define SWM_ARG_ID_FOCUSNEXT    (0)
 382 #define SWM_ARG_ID_FOCUSPREV    (1)
 383 #define SWM_ARG_ID_FOCUSMAIN    (2)
 384 #define SWM_ARG_ID_SWAPNEXT     (3)
 385 #define SWM_ARG_ID_SWAPPREV     (4)
 386 #define SWM_ARG_ID_SWAPMAIN     (5)
 387 #define SWM_ARG_ID_MASTERSHRINK (6)
 388 #define SWM_ARG_ID_MASTERGROW   (7)
 389 #define SWM_ARG_ID_MASTERADD    (8)
 390 #define SWM_ARG_ID_MASTERDEL    (9)
 391 #define SWM_ARG_ID_STACKRESET   (10)
 392 #define SWM_ARG_ID_STACKINIT    (11)
 393 #define SWM_ARG_ID_CYCLEWS_UP   (12)
 394 #define SWM_ARG_ID_CYCLEWS_DOWN (13)
 395 #define SWM_ARG_ID_CYCLESC_UP   (14)
 396 #define SWM_ARG_ID_CYCLESC_DOWN (15)
 397 #define SWM_ARG_ID_STACKINC     (16)
 398 #define SWM_ARG_ID_STACKDEC     (17)
 399 #define SWM_ARG_ID_SS_ALL       (0)
 400 #define SWM_ARG_ID_SS_WINDOW    (1)
 401 #define SWM_ARG_ID_DONTCENTER   (0)
 402 #define SWM_ARG_ID_CENTER       (1)
 403 #define SWM_ARG_ID_KILLWINDOW   (0)
 404 #define SWM_ARG_ID_DELETEWINDOW (1)
 405         char                    **argv;
 406 };
 407
 408 /* quirks */
 409 struct quirk {
 410         char                    *class;
 411         char                    *name;
 412         unsigned long           quirk;
 413 #define SWM_Q_FLOAT             (1<<0)  /* float this window */
 414 #define SWM_Q_TRANSSZ           (1<<1)  /* transiend window size too small */
 415 #define SWM_Q_ANYWHERE          (1<<2)  /* don't position this window */
 416 #define SWM_Q_XTERM_FONTADJ     (1<<3)  /* adjust xterm fonts when resizing */
 417 #define SWM_Q_FULLSCREEN        (1<<4)  /* remove border */
 418 };
 419 int                             quirks_size = 0, quirks_length = 0;
 420 struct quirk                    *quirks = NULL;
 421
 422 /* events */
 423 #ifdef SWM_DEBUG
 424 void
 425 dumpevent(XEvent *e)
 426 {
 427         char                    *name = NULL;
 428
 429         switch (e->type) {
 430         case KeyPress:
 431                 name = "KeyPress";
 432                 break;
 433         case KeyRelease:
 434                 name = "KeyRelease";
 435                 break;
 436         case ButtonPress:
 437                 name = "ButtonPress";
 438                 break;
 439         case ButtonRelease:
 440                 name = "ButtonRelease";
 441                 break;
 442         case MotionNotify:
 443                 name = "MotionNotify";
 444                 break;
 445         case EnterNotify:
 446                 name = "EnterNotify";
 447                 break;
 448         case LeaveNotify:
 449                 name = "LeaveNotify";
 450                 break;
 451         case FocusIn:
 452                 name = "FocusIn";
 453                 break;
 454         case FocusOut:
 455                 name = "FocusOut";
 456                 break;
 457         case KeymapNotify:
 458                 name = "KeymapNotify";
 459                 break;
 460         case Expose:
 461                 name = "Expose";
 462                 break;
 463         case GraphicsExpose:
 464                 name = "GraphicsExpose";
 465                 break;
 466         case NoExpose:
 467                 name = "NoExpose";
 468                 break;
 469         case VisibilityNotify:
 470                 name = "VisibilityNotify";
 471                 break;
 472         case CreateNotify:
 473                 name = "CreateNotify";
 474                 break;
 475         case DestroyNotify:
 476                 name = "DestroyNotify";
 477                 break;
 478         case UnmapNotify:
 479                 name = "UnmapNotify";
 480                 break;
 481         case MapNotify:
 482                 name = "MapNotify";
 483                 break;
 484         case MapRequest:
 485                 name = "MapRequest";
 486                 break;
 487         case ReparentNotify:
 488                 name = "ReparentNotify";
 489                 break;
 490         case ConfigureNotify:
 491                 name = "ConfigureNotify";
 492                 break;
 493         case ConfigureRequest:
 494                 name = "ConfigureRequest";
 495                 break;
 496         case GravityNotify:
 497                 name = "GravityNotify";
 498                 break;
 499         case ResizeRequest:
 500                 name = "ResizeRequest";
 501                 break;
 502         case CirculateNotify:
 503                 name = "CirculateNotify";
 504                 break;
 505         case CirculateRequest:
 506                 name = "CirculateRequest";
 507                 break;
 508         case PropertyNotify:
 509                 name = "PropertyNotify";
 510                 break;
 511         case SelectionClear:
 512                 name = "SelectionClear";
 513                 break;
 514         case SelectionRequest:
 515                 name = "SelectionRequest";
 516                 break;
 517         case SelectionNotify:
 518                 name = "SelectionNotify";
 519                 break;
 520         case ColormapNotify:
 521                 name = "ColormapNotify";
 522                 break;
 523         case ClientMessage:
 524                 name = "ClientMessage";
 525                 break;
 526         case MappingNotify:
 527                 name = "MappingNotify";
 528                 break;
 529         }
 530
 531         if (name)
 532                 DNPRINTF(SWM_D_EVENTQ ,"window: %lu event: %s (%d), %d "
 533                     "remaining\n",
 534                     e->xany.window, name, e->type, QLength(display));
 535         else
 536                 DNPRINTF(SWM_D_EVENTQ, "window: %lu unknown event %d, %d "
 537                     "remaining\n",
 538                     e->xany.window, e->type, QLength(display));
 539 }
 540 #else
 541 #define dumpevent(e)
 542 #endif /* SWM_DEBUG */
 543
 544 void                    expose(XEvent *);
 545 void                    keypress(XEvent *);
 546 void                    buttonpress(XEvent *);
 547 void                    configurerequest(XEvent *);
 548 void                    configurenotify(XEvent *);
 549 void                    destroynotify(XEvent *);
 550 void                    enternotify(XEvent *);
 551 void                    focusin(XEvent *);
 552 void                    focusout(XEvent *);
 553 void                    mapnotify(XEvent *);
 554 void                    maprequest(XEvent *);
 555 void                    propertynotify(XEvent *);
 556 void                    unmapnotify(XEvent *);
 557 void                    visibilitynotify(XEvent *);
 558
 559 void                    (*handler[LASTEvent])(XEvent *) = {
 560                                 [Expose] = expose,
 561                                 [KeyPress] = keypress,
 562                                 [ButtonPress] = buttonpress,
 563                                 [ConfigureRequest] = configurerequest,
 564                                 [ConfigureNotify] = configurenotify,
 565                                 [DestroyNotify] = destroynotify,
 566                                 [EnterNotify] = enternotify,
 567                                 [FocusIn] = focusin,
 568                                 [FocusOut] = focusout,
 569                                 [MapNotify] = mapnotify,
 570                                 [MapRequest] = maprequest,
 571                                 [PropertyNotify] = propertynotify,
 572                                 [UnmapNotify] = unmapnotify,
 573                                 [VisibilityNotify] = visibilitynotify,
 574 };
 575
 576 void
 577 sighdlr(int sig)
 578 {
 579         pid_t                   pid;
 580
 581         switch (sig) {
 582         case SIGCHLD:
 583                 while ((pid = waitpid(WAIT_ANY, NULL, WNOHANG)) != -1) {
 584                         DNPRINTF(SWM_D_MISC, "reaping: %d\n", pid);
 585                         if (pid <= 0)
 586                                 break;
 587                 }
 588                 break;
 589         case SIGINT:
 590         case SIGTERM:
 591         case SIGHUP:
 592         case SIGQUIT:
 593                 running = 0;
 594                 break;
 595         }
 596 }
 597
 598 void
 599 installsignal(int sig, char *name)
 600 {
 601         struct sigaction        sa;
 602
 603         sa.sa_handler = sighdlr;
 604         sigemptyset(&sa.sa_mask);
 605         sa.sa_flags = 0;
 606         if (sigaction(sig, &sa, NULL) == -1)
 607                 err(1, "could not install %s handler", name);
 608 }
 609
 610 unsigned long
 611 name_to_color(char *colorname)
 612 {
 613         Colormap                cmap;
 614         Status                  status;
 615         XColor                  screen_def, exact_def;
 616         unsigned long           result = 0;
 617         char                    cname[32] = "#";
 618
 619         cmap = DefaultColormap(display, screens[0].idx);
 620         status = XAllocNamedColor(display, cmap, colorname,
 621             &screen_def, &exact_def);
 622         if (!status) {
 623                 strlcat(cname, colorname + 2, sizeof cname - 1);
 624                 status = XAllocNamedColor(display, cmap, cname, &screen_def,
 625                     &exact_def);
 626         }
 627         if (status)
 628                 result = screen_def.pixel;
 629         else
 630                 fprintf(stderr, "color '%s' not found.\n", colorname);
 631
 632         return (result);
 633 }
 634
 635 void
 636 setscreencolor(char *val, int i, int c)
 637 {
 638         if (i > 0 && i <= ScreenCount(display)) {
 639                 screens[i - 1].c[c].color = name_to_color(val);
 640                 free(screens[i - 1].c[c].name);
 641                 if ((screens[i - 1].c[c].name = strdup(val)) == NULL)
 642                         errx(1, "strdup");
 643         } else if (i == -1) {
 644                 for (i = 0; i < ScreenCount(display); i++) {
 645                         screens[i].c[c].color = name_to_color(val);
 646                         free(screens[i].c[c].name);
 647                         if ((screens[i].c[c].name = strdup(val)) == NULL)
 648                                 errx(1, "strdup");
 649                 }
 650         } else
 651                 errx(1, "invalid screen index: %d out of bounds (maximum %d)\n",
 652                     i, ScreenCount(display));
 653 }
 654
 655 void
 656 custom_region(char *val)
 657 {
 658         unsigned int                    sidx, x, y, w, h;
 659
 660         if (sscanf(val, "screen[%u]:%ux%u+%u+%u", &sidx, &w, &h, &x, &y) != 5)
 661                 errx(1, "invalid custom region, "
 662                     "should be 'screen[<n>]:<n>x<n>+<n>+<n>\n");
 663         if (sidx < 1 || sidx > ScreenCount(display))
 664                 errx(1, "invalid screen index: %d out of bounds (maximum %d)\n",
 665                     sidx, ScreenCount(display));
 666         sidx--;
 667
 668         if (w < 1 || h < 1)
 669                 errx(1, "region %ux%u+%u+%u too small\n", w, h, x, y);
 670
 671         if (x  < 0 || x > DisplayWidth(display, sidx) ||
 672             y < 0 || y > DisplayHeight(display, sidx) ||
 673             w + x > DisplayWidth(display, sidx) ||
 674             h + y > DisplayHeight(display, sidx))
 675                 errx(1, "region %ux%u+%u+%u not within screen boundaries "
 676                     "(%ux%u)\n", w, h, x, y,
 677                     DisplayWidth(display, sidx), DisplayHeight(display, sidx));
 678
 679         new_region(&screens[sidx], x, y, w, h);
 680 }
 681
 682 void
 683 socket_setnonblock(int fd)
 684 {
 685         int                     flags;
 686
 687         if ((flags = fcntl(fd, F_GETFL, 0)) == -1)
 688                 err(1, "fcntl F_GETFL");
 689         flags |= O_NONBLOCK;
 690         if ((flags = fcntl(fd, F_SETFL, flags)) == -1)
 691                 err(1, "fcntl F_SETFL");
 692 }
 693
 694 void
 695 bar_print(struct swm_region *r, char *s)
 696 {
 697         XClearWindow(display, r->bar_window);
 698         XSetForeground(display, bar_gc, r->s->c[SWM_S_COLOR_BAR_FONT].color);
 699         XDrawString(display, r->bar_window, bar_gc, 4, bar_fs->ascent, s,
 700             strlen(s));
 701 }
 702
 703 void
 704 bar_extra_stop(void)
 705 {
 706         if (bar_pipe[0]) {
 707                 close(bar_pipe[0]);
 708                 bzero(bar_pipe, sizeof bar_pipe);
 709         }
 710         if (bar_pid) {
 711                 kill(bar_pid, SIGTERM);
 712                 bar_pid = 0;
 713         }
 714         strlcpy(bar_ext, "", sizeof bar_ext);
 715         bar_extra = 0;
 716 }
 717
 718 void
 719 bar_class_name(char *s, ssize_t sz, struct ws_win *cur_focus)
 720 {
 721         int                     do_class, do_name;
 722         Status                  status;
 723         XClassHint              *xch = NULL;
 724
 725         if ((title_name_enabled == 1 || title_class_enabled == 1) &&
 726             cur_focus != NULL) {
 727                 if ((xch = XAllocClassHint()) == NULL)
 728                         goto out;
 729                 status = XGetClassHint(display, cur_focus->id, xch);
 730                 if (status == BadWindow || status == BadAlloc)
 731                         goto out;
 732                 do_class = (title_class_enabled && xch->res_class != NULL);
 733                 do_name = (title_name_enabled && xch->res_name != NULL);
 734                 if (do_class)
 735                         strlcat(s, xch->res_class, sz);
 736                 if (do_class && do_name)
 737                         strlcat(s, ":", sz);
 738                 if (do_name)
 739                         strlcat(s, xch->res_name, sz);
 740                 strlcat(s, "    ", sz);
 741         }
 742 out:
 743         if (xch)
 744                 XFree(xch);
 745 }
 746
 747 void
 748 bar_update(void)
 749 {
 750         time_t                  tmt;
 751         struct tm               tm;
 752         struct swm_region       *r;
 753         int                     i, x;
 754         size_t                  len;
 755         char                    s[SWM_BAR_MAX];
 756         char                    loc[SWM_BAR_MAX];
 757         char                    *b;
 758
 759         if (bar_enabled == 0)
 760                 return;
 761         if (bar_extra && bar_extra_running) {
 762                 /* ignore short reads; it'll correct itself */
 763                 while ((b = fgetln(stdin, &len)) != NULL)
 764                         if (b && b[len - 1] == '\n') {
 765                                 b[len - 1] = '\0';
 766                                 strlcpy(bar_ext, b, sizeof bar_ext);
 767                         }
 768                 if (b == NULL && errno != EAGAIN) {
 769                         fprintf(stderr, "bar_extra failed: errno: %d %s\n",
 770                             errno, strerror(errno));
 771                         bar_extra_stop();
 772                 }
 773         } else
 774                 strlcpy(bar_ext, "", sizeof bar_ext);
 775
 776         if (clock_enabled == 0)
 777                 strlcpy(s, "", sizeof s);
 778         else {
 779                 time(&tmt);
 780                 localtime_r(&tmt, &tm);
 781                 strftime(s, sizeof s, "%a %b %d %R %Z %Y    ", &tm);
 782         }
 783
 784         for (i = 0; i < ScreenCount(display); i++) {
 785                 x = 1;
 786                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
 787                         if (r && r->ws)
 788                                 bar_class_name(s, sizeof s, r->ws->focus);
 789
 790                         snprintf(loc, sizeof loc, "%d:%d    %s %s    %s",
 791                             x++, r->ws->idx + 1, s, bar_ext, bar_vertext);
 792                         bar_print(r, loc);
 793                 }
 794         }
 795         XSync(display, False);
 796         alarm(bar_delay);
 797 }
 798
 799 void
 800 bar_signal(int sig)
 801 {
 802         bar_alarm = 1;
 803 }
 804
 805 void
 806 bar_toggle(struct swm_region *r, union arg *args)
 807 {
 808         struct swm_region       *tmpr;
 809         int                     i, j, sc = ScreenCount(display);
 810
 811         DNPRINTF(SWM_D_MISC, "bar_toggle\n");
 812
 813         if (bar_enabled)
 814                 for (i = 0; i < sc; i++)
 815                         TAILQ_FOREACH(tmpr, &screens[i].rl, entry)
 816                                 XUnmapWindow(display, tmpr->bar_window);
 817         else
 818                 for (i = 0; i < sc; i++)
 819                         TAILQ_FOREACH(tmpr, &screens[i].rl, entry)
 820                                 XMapRaised(display, tmpr->bar_window);
 821
 822         bar_enabled = !bar_enabled;
 823         for (i = 0; i < sc; i++)
 824                 for (j = 0; j < SWM_WS_MAX; j++)
 825                         screens[i].ws[j].restack = 1;
 826
 827         stack();
 828         /* must be after stack */
 829         bar_update();
 830 }
 831
 832 void
 833 bar_refresh(void)
 834 {
 835         XSetWindowAttributes    wa;
 836         struct swm_region       *r;
 837         int                     i;
 838
 839         /* do this here because the conf file is in memory */
 840         if (bar_extra && bar_extra_running == 0 && bar_argv[0]) {
 841                 /* launch external status app */
 842                 bar_extra_running = 1;
 843                 if (pipe(bar_pipe) == -1)
 844                         err(1, "pipe error");
 845                 socket_setnonblock(bar_pipe[0]);
 846                 socket_setnonblock(bar_pipe[1]); /* XXX hmmm, really? */
 847                 if (dup2(bar_pipe[0], 0) == -1)
 848                         errx(1, "dup2");
 849                 if (dup2(bar_pipe[1], 1) == -1)
 850                         errx(1, "dup2");
 851                 if (signal(SIGPIPE, SIG_IGN) == SIG_ERR)
 852                         err(1, "could not disable SIGPIPE");
 853                 switch (bar_pid = fork()) {
 854                 case -1:
 855                         err(1, "cannot fork");
 856                         break;
 857                 case 0: /* child */
 858                         close(bar_pipe[0]);
 859                         execvp(bar_argv[0], bar_argv);
 860                         err(1, "%s external app failed", bar_argv[0]);
 861                         break;
 862                 default: /* parent */
 863                         close(bar_pipe[1]);
 864                         break;
 865                 }
 866         }
 867
 868         bzero(&wa, sizeof wa);
 869         for (i = 0; i < ScreenCount(display); i++)
 870                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
 871                         wa.border_pixel =
 872                             screens[i].c[SWM_S_COLOR_BAR_BORDER].color;
 873                         wa.background_pixel =
 874                             screens[i].c[SWM_S_COLOR_BAR].color;
 875                         XChangeWindowAttributes(display, r->bar_window,
 876                             CWBackPixel | CWBorderPixel, &wa);
 877                 }
 878         bar_update();
 879 }
 880
 881 void
 882 bar_setup(struct swm_region *r)
 883 {
 884         int                     i;
 885
 886         for (i = 0; bar_fonts[i] != NULL; i++) {
 887                 bar_fs = XLoadQueryFont(display, bar_fonts[i]);
 888                 if (bar_fs) {
 889                         bar_fidx = i;
 890                         break;
 891                 }
 892         }
 893         if (bar_fonts[i] == NULL)
 894                         errx(1, "couldn't load font");
 895         bar_height = bar_fs->ascent + bar_fs->descent + 3;
 896
 897         r->bar_window = XCreateSimpleWindow(display,
 898             r->s->root, X(r), Y(r), WIDTH(r) - 2, bar_height - 2,
 899             1, r->s->c[SWM_S_COLOR_BAR_BORDER].color,
 900             r->s->c[SWM_S_COLOR_BAR].color);
 901         bar_gc = XCreateGC(display, r->bar_window, 0, &bar_gcv);
 902         XSetFont(display, bar_gc, bar_fs->fid);
 903         XSelectInput(display, r->bar_window, VisibilityChangeMask);
 904         if (bar_enabled)
 905                 XMapRaised(display, r->bar_window);
 906         DNPRINTF(SWM_D_MISC, "bar_setup: bar_window %lu\n", r->bar_window);
 907
 908         if (signal(SIGALRM, bar_signal) == SIG_ERR)
 909                 err(1, "could not install bar_signal");
 910         bar_refresh();
 911 }
 912
 913 void
 914 set_win_state(struct ws_win *win, long state)
 915 {
 916         long                    data[] = {state, None};
 917
 918         DNPRINTF(SWM_D_EVENT, "set_win_state: window: %lu\n", win->id);
 919
 920         XChangeProperty(display, win->id, astate, astate, 32, PropModeReplace,
 921             (unsigned char *)data, 2);
 922 }
 923
 924 long
 925 getstate(Window w)
 926 {
 927         int                     format, status;
 928         long                    result = -1;
 929         unsigned char           *p = NULL;
 930         unsigned long           n, extra;
 931         Atom                    real;
 932
 933         status = XGetWindowProperty(display, w, astate, 0L, 2L, False, astate,
 934             &real, &format, &n, &extra, (unsigned char **)&p);
 935         if (status != Success)
 936                 return (-1);
 937         if (n != 0)
 938                 result = *((long *)p);
 939         XFree(p);
 940         return (result);
 941 }
 942
 943 void
 944 version(struct swm_region *r, union arg *args)
 945 {
 946         bar_version = !bar_version;
 947         if (bar_version)
 948                 snprintf(bar_vertext, sizeof bar_vertext, "Version: %s CVS: %s",
 949                     SWM_VERSION, cvstag);
 950         else
 951                 strlcpy(bar_vertext, "", sizeof bar_vertext);
 952         bar_update();
 953 }
 954
 955 void
 956 client_msg(struct ws_win *win, Atom a)
 957 {
 958         XClientMessageEvent     cm;
 959
 960         bzero(&cm, sizeof cm);
 961         cm.type = ClientMessage;
 962         cm.window = win->id;
 963         cm.message_type = aprot;
 964         cm.format = 32;
 965         cm.data.l[0] = a;
 966         cm.data.l[1] = CurrentTime;
 967         XSendEvent(display, win->id, False, 0L, (XEvent *)&cm);
 968 }
 969
 970 void
 971 config_win(struct ws_win *win)
 972 {
 973         XConfigureEvent         ce;
 974
 975         DNPRINTF(SWM_D_MISC, "config_win: win %lu x %d y %d w %d h %d\n",
 976             win->id, win->g.x, win->g.y, win->g.w, win->g.h);
 977         ce.type = ConfigureNotify;
 978         ce.display = display;
 979         ce.event = win->id;
 980         ce.window = win->id;
 981         ce.x = win->g.x;
 982         ce.y = win->g.y;
 983         ce.width = win->g.w;
 984         ce.height = win->g.h;
 985         ce.border_width = 1; /* XXX store this! */
 986         ce.above = None;
 987         ce.override_redirect = False;
 988         XSendEvent(display, win->id, False, StructureNotifyMask, (XEvent *)&ce);
 989 }
 990
 991 int
 992 count_win(struct workspace *ws, int count_transient)
 993 {
 994         struct ws_win           *win;
 995         int                     count = 0;
 996
 997         TAILQ_FOREACH(win, &ws->winlist, entry) {
 998                 if (count_transient == 0 && win->floating)
 999                         continue;
1000                 if (count_transient == 0 && win->transient)
1001                         continue;
1002                 count++;
1003         }
1004         DNPRINTF(SWM_D_MISC, "count_win: %d\n", count);
1005
1006         return (count);
1007 }
1008
1009 void
1010 quit(struct swm_region *r, union arg *args)
1011 {
1012         DNPRINTF(SWM_D_MISC, "quit\n");
1013         running = 0;
1014 }
1015
1016 void
1017 unmap_window(struct ws_win *win)
1018 {
1019         if (win == NULL)
1020                 return;
1021
1022         set_win_state(win, IconicState);
1023         XUnmapWindow(display, win->id);
1024 }
1025
1026 void
1027 unmap_all(void)
1028 {
1029         struct ws_win           *win;
1030         int                     i, j;
1031
1032         for (i = 0; i < ScreenCount(display); i++)
1033                 for (j = 0; j < SWM_WS_MAX; j++)
1034                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
1035                                 unmap_window(win);
1036 }
1037
1038 void
1039 fake_keypress(struct ws_win *win, int keysym, int modifiers)
1040 {
1041         XKeyEvent event;
1042
1043         event.display = display;        /* Ignored, but what the hell */
1044         event.window = win->id;
1045         event.root = win->s->root;
1046         event.subwindow = None;
1047         event.time = CurrentTime;
1048         event.x = win->g.x;
1049         event.y = win->g.y;
1050         event.x_root = 1;
1051         event.y_root = 1;
1052         event.same_screen = True;
1053         event.keycode = XKeysymToKeycode(display, keysym);
1054         event.state = modifiers;
1055
1056         event.type = KeyPress;
1057         XSendEvent(event.display, event.window, True,
1058             KeyPressMask, (XEvent *)&event);
1059
1060         event.type = KeyRelease;
1061         XSendEvent(event.display, event.window, True,
1062             KeyPressMask, (XEvent *)&event);
1063
1064 }
1065
1066 void
1067 restart(struct swm_region *r, union arg *args)
1068 {
1069         DNPRINTF(SWM_D_MISC, "restart: %s\n", start_argv[0]);
1070
1071         /* disable alarm because the following code may not be interrupted */
1072         alarm(0);
1073         if (signal(SIGALRM, SIG_IGN) == SIG_ERR)
1074                 errx(1, "can't disable alarm");
1075
1076         bar_extra_stop();
1077         bar_extra = 1;
1078         unmap_all();
1079         XCloseDisplay(display);
1080         execvp(start_argv[0], start_argv);
1081         fprintf(stderr, "execvp failed\n");
1082         perror(" failed");
1083         quit(NULL, NULL);
1084 }
1085
1086 struct swm_region *
1087 root_to_region(Window root)
1088 {
1089         struct swm_region       *r = NULL;
1090         Window                  rr, cr;
1091         int                     i, x, y, wx, wy;
1092         unsigned int            mask;
1093
1094         for (i = 0; i < ScreenCount(display); i++)
1095                 if (screens[i].root == root)
1096                         break;
1097
1098         if (XQueryPointer(display, screens[i].root,
1099             &rr, &cr, &x, &y, &wx, &wy, &mask) != False) {
1100                 /* choose a region based on pointer location */
1101                 TAILQ_FOREACH(r, &screens[i].rl, entry)
1102                         if (x >= X(r) && x <= X(r) + WIDTH(r) &&
1103                             y >= Y(r) && y <= Y(r) + HEIGHT(r))
1104                                 break;
1105         }
1106
1107         if (r == NULL)
1108                 r = TAILQ_FIRST(&screens[i].rl);
1109
1110         return (r);
1111 }
1112
1113 struct ws_win *
1114 find_window(Window id)
1115 {
1116         struct ws_win           *win;
1117         int                     i, j;
1118
1119         for (i = 0; i < ScreenCount(display); i++)
1120                 for (j = 0; j < SWM_WS_MAX; j++)
1121                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
1122                                 if (id == win->id)
1123                                         return (win);
1124         return (NULL);
1125 }
1126
1127 void
1128 spawn(struct swm_region *r, union arg *args)
1129 {
1130         char                    *ret;
1131         int                     si;
1132
1133         DNPRINTF(SWM_D_MISC, "spawn: %s\n", args->argv[0]);
1134         /*
1135          * The double-fork construct avoids zombie processes and keeps the code
1136          * clean from stupid signal handlers.
1137          */
1138         if (fork() == 0) {
1139                 if (fork() == 0) {
1140                         if (display)
1141                                 close(ConnectionNumber(display));
1142                         setenv("LD_PRELOAD", SWM_LIB, 1);
1143                         if (asprintf(&ret, "%d", r->ws->idx)) {
1144                                 setenv("_SWM_WS", ret, 1);
1145                                 free(ret);
1146                         }
1147                         if (asprintf(&ret, "%d", getpid())) {
1148                                 setenv("_SWM_PID", ret, 1);
1149                                 free(ret);
1150                         }
1151                         setsid();
1152                         /* kill stdin, mplayer, ssh-add etc. need that */
1153                         si = open("/dev/null", O_RDONLY, 0);
1154                         if (si == -1)
1155                                 err(1, "open /dev/null");
1156                         if (dup2(si, 0) == -1)
1157                                 err(1, "dup2 /dev/null");
1158                         execvp(args->argv[0], args->argv);
1159                         fprintf(stderr, "execvp failed\n");
1160                         perror(" failed");
1161                 }
1162                 exit(0);
1163         }
1164         wait(0);
1165 }
1166
1167 void
1168 spawnterm(struct swm_region *r, union arg *args)
1169 {
1170         DNPRINTF(SWM_D_MISC, "spawnterm\n");
1171
1172         if (term_width)
1173                 setenv("_SWM_XTERM_FONTADJ", "", 1);
1174         spawn(r, args);
1175 }
1176
1177 void
1178 unfocus_win(struct ws_win *win)
1179 {
1180         if (win == NULL)
1181                 return;
1182
1183         if (win->ws->r == NULL)
1184                 return;
1185
1186         grabbuttons(win, 0);
1187         XSetWindowBorder(display, win->id,
1188             win->ws->r->s->c[SWM_S_COLOR_UNFOCUS].color);
1189
1190         if (win->ws->focus == win) {
1191                 win->ws->focus = NULL;
1192                 win->ws->focus_prev = win;
1193         }
1194 }
1195
1196 void
1197 unfocus_all(void)
1198 {
1199         struct ws_win           *win;
1200         int                     i, j;
1201
1202         DNPRINTF(SWM_D_FOCUS, "unfocus_all:\n");
1203
1204         for (i = 0; i < ScreenCount(display); i++)
1205                 for (j = 0; j < SWM_WS_MAX; j++)
1206                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
1207                                 unfocus_win(win);
1208         XSync(display, False);
1209 }
1210
1211 void
1212 focus_win(struct ws_win *win)
1213 {
1214         DNPRINTF(SWM_D_FOCUS, "focus_win: id: %lu\n", win ? win->id : 0);
1215
1216         if (win == NULL)
1217                 return;
1218
1219         /* use big hammer to make sure it works under all use cases */
1220         unfocus_all();
1221         win->ws->focus = win;
1222
1223         if (win->ws->r != NULL) {
1224                 XSetWindowBorder(display, win->id,
1225                     win->ws->r->s->c[SWM_S_COLOR_FOCUS].color);
1226                 grabbuttons(win, 1);
1227                 XSetInputFocus(display, win->id,
1228                     RevertToPointerRoot, CurrentTime);
1229                 XSync(display, False);
1230         }
1231 }
1232
1233 void
1234 switchws(struct swm_region *r, union arg *args)
1235 {
1236         int                     wsid = args->id;
1237         struct swm_region       *this_r, *other_r;
1238         struct ws_win           *win, *winfocus = NULL;
1239         struct workspace        *new_ws, *old_ws;
1240
1241         this_r = r;
1242         old_ws = this_r->ws;
1243         new_ws = &this_r->s->ws[wsid];
1244
1245         DNPRINTF(SWM_D_WS, "switchws screen[%d]:%dx%d+%d+%d: "
1246             "%d -> %d\n", r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r),
1247             old_ws->idx, wsid);
1248
1249         if (new_ws == old_ws)
1250                 return;
1251
1252         /* get focus window */
1253         if (new_ws->focus)
1254                 winfocus = new_ws->focus;
1255         else if (new_ws->focus_prev)
1256                 winfocus = new_ws->focus_prev;
1257         else
1258                 winfocus = TAILQ_FIRST(&new_ws->winlist);
1259
1260         other_r = new_ws->r;
1261         if (other_r == NULL) {
1262                 /* if the other workspace is hidden, switch windows */
1263                 if (old_ws->r != NULL)
1264                         old_ws->old_r = old_ws->r;
1265                 old_ws->r = NULL;
1266                 old_ws->restack = 1;
1267
1268                 /*
1269                  * Map new windows first if they were here before
1270                  * to minimize ugly blinking.
1271                  */
1272                 if (new_ws->old_r == this_r)
1273                         TAILQ_FOREACH(win, &new_ws->winlist, entry)
1274                                 XMapRaised(display, win->id);
1275
1276                 TAILQ_FOREACH(win, &old_ws->winlist, entry)
1277                         unmap_window(win);
1278         } else {
1279                 other_r->ws = old_ws;
1280                 old_ws->r = other_r;
1281         }
1282         this_r->ws = new_ws;
1283         new_ws->r = this_r;
1284
1285         ignore_enter = 1;
1286         stack();
1287         focus_win(winfocus);
1288         bar_update();
1289 }
1290
1291 void
1292 cyclews(struct swm_region *r, union arg *args)
1293 {
1294         union                   arg a;
1295         struct swm_screen       *s = r->s;
1296
1297         DNPRINTF(SWM_D_WS, "cyclews id %d "
1298             "in screen[%d]:%dx%d+%d+%d ws %d\n", args->id,
1299             r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
1300
1301         a.id = r->ws->idx;
1302         do {
1303                 switch (args->id) {
1304                 case SWM_ARG_ID_CYCLEWS_UP:
1305                         if (a.id < SWM_WS_MAX - 1)
1306                                 a.id++;
1307                         else
1308                                 a.id = 0;
1309                         break;
1310                 case SWM_ARG_ID_CYCLEWS_DOWN:
1311                         if (a.id > 0)
1312                                 a.id--;
1313                         else
1314                                 a.id = SWM_WS_MAX - 1;
1315                         break;
1316                 default:
1317                         return;
1318                 };
1319
1320                 if (cycle_empty == 0 && TAILQ_EMPTY(&s->ws[a.id].winlist))
1321                         continue;
1322                 if (cycle_visible == 0 && s->ws[a.id].r != NULL)
1323                         continue;
1324
1325                 switchws(r, &a);
1326         } while (a.id != r->ws->idx);
1327 }
1328
1329 void
1330 cyclescr(struct swm_region *r, union arg *args)
1331 {
1332         struct swm_region       *rr;
1333         int                     i;
1334
1335         /* do nothing if we don't have more than one screen */
1336         if (!(ScreenCount(display) > 1 || outputs > 1))
1337                 return;
1338
1339         i = r->s->idx;
1340         switch (args->id) {
1341         case SWM_ARG_ID_CYCLESC_UP:
1342                 rr = TAILQ_NEXT(r, entry);
1343                 if (rr == NULL)
1344                         rr = TAILQ_FIRST(&screens[i].rl);
1345                 break;
1346         case SWM_ARG_ID_CYCLESC_DOWN:
1347                 rr = TAILQ_PREV(r, swm_region_list, entry);
1348                 if (rr == NULL)
1349                         rr = TAILQ_LAST(&screens[i].rl, swm_region_list);
1350                 break;
1351         default:
1352                 return;
1353         };
1354         unfocus_all();
1355         XSetInputFocus(display, PointerRoot, RevertToPointerRoot, CurrentTime);
1356         XWarpPointer(display, None, rr->s[i].root, 0, 0, 0, 0, rr->g.x,
1357             rr->g.y + bar_enabled ? bar_height : 0);
1358 }
1359
1360 void
1361 swapwin(struct swm_region *r, union arg *args)
1362 {
1363         struct ws_win           *target, *source;
1364         struct ws_win           *cur_focus;
1365         struct ws_win_list      *wl;
1366
1367
1368         DNPRINTF(SWM_D_WS, "swapwin id %d "
1369             "in screen %d region %dx%d+%d+%d ws %d\n", args->id,
1370             r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
1371
1372         cur_focus = r->ws->focus;
1373         if (cur_focus == NULL)
1374                 return;
1375
1376         source = cur_focus;
1377         wl = &source->ws->winlist;
1378
1379         switch (args->id) {
1380         case SWM_ARG_ID_SWAPPREV:
1381                 target = TAILQ_PREV(source, ws_win_list, entry);
1382                 TAILQ_REMOVE(wl, cur_focus, entry);
1383                 if (target == NULL)
1384                         TAILQ_INSERT_TAIL(wl, source, entry);
1385                 else
1386                         TAILQ_INSERT_BEFORE(target, source, entry);
1387                 break;
1388         case SWM_ARG_ID_SWAPNEXT:
1389                 target = TAILQ_NEXT(source, entry);
1390                 TAILQ_REMOVE(wl, source, entry);
1391                 if (target == NULL)
1392                         TAILQ_INSERT_HEAD(wl, source, entry);
1393                 else
1394                         TAILQ_INSERT_AFTER(wl, target, source, entry);
1395                 break;
1396         case SWM_ARG_ID_SWAPMAIN:
1397                 target = TAILQ_FIRST(wl);
1398                 if (target == source) {
1399                         if (source->ws->focus_prev != NULL &&
1400                             source->ws->focus_prev != target)
1401
1402                                 source = source->ws->focus_prev;
1403                         else
1404                                 return;
1405                 }
1406                 source->ws->focus_prev = target;
1407                 TAILQ_REMOVE(wl, target, entry);
1408                 TAILQ_INSERT_BEFORE(source, target, entry);
1409                 TAILQ_REMOVE(wl, source, entry);
1410                 TAILQ_INSERT_HEAD(wl, source, entry);
1411                 break;
1412         default:
1413                 DNPRINTF(SWM_D_MOVE, "invalid id: %d\n", args->id);
1414                 return;
1415         }
1416
1417         ignore_enter = 1;
1418         stack();
1419 }
1420
1421 void
1422 focus(struct swm_region *r, union arg *args)
1423 {
1424         struct ws_win           *winfocus, *winlostfocus;
1425         struct ws_win_list      *wl;
1426         struct ws_win           *cur_focus;
1427
1428         DNPRINTF(SWM_D_FOCUS, "focus: id %d\n", args->id);
1429
1430         cur_focus = r->ws->focus;
1431         if (cur_focus == NULL)
1432                 return;
1433
1434         wl = &cur_focus->ws->winlist;
1435
1436         winlostfocus = cur_focus;
1437
1438         switch (args->id) {
1439         case SWM_ARG_ID_FOCUSPREV:
1440                 winfocus = TAILQ_PREV(cur_focus, ws_win_list, entry);
1441                 if (winfocus == NULL)
1442                         winfocus = TAILQ_LAST(wl, ws_win_list);
1443                 break;
1444
1445         case SWM_ARG_ID_FOCUSNEXT:
1446                 winfocus = TAILQ_NEXT(cur_focus, entry);
1447                 if (winfocus == NULL)
1448                         winfocus = TAILQ_FIRST(wl);
1449                 break;
1450
1451         case SWM_ARG_ID_FOCUSMAIN:
1452                 winfocus = TAILQ_FIRST(wl);
1453                 if (winfocus == cur_focus)
1454                         winfocus = cur_focus->ws->focus_prev;
1455                 if (winfocus == NULL)
1456                         return;
1457                 break;
1458
1459         default:
1460                 return;
1461         }
1462
1463         if (winfocus == winlostfocus || winfocus == NULL)
1464                 return;
1465
1466         XMapRaised(display, winfocus->id);
1467         focus_win(winfocus);
1468         XSync(display, False);
1469 }
1470
1471 void
1472 cycle_layout(struct swm_region *r, union arg *args)
1473 {
1474         struct workspace        *ws = r->ws;
1475         struct ws_win           *winfocus;
1476
1477         DNPRINTF(SWM_D_EVENT, "cycle_layout: workspace: %d\n", ws->idx);
1478
1479         winfocus = ws->focus;
1480
1481         ws->cur_layout++;
1482         if (ws->cur_layout->l_stack == NULL)
1483                 ws->cur_layout = &layouts[0];
1484
1485         ignore_enter = 1;
1486         stack();
1487         focus_win(winfocus);
1488 }
1489
1490 void
1491 stack_config(struct swm_region *r, union arg *args)
1492 {
1493         struct workspace        *ws = r->ws;
1494
1495         DNPRINTF(SWM_D_STACK, "stack_config for workspace %d (id %d\n",
1496             args->id, ws->idx);
1497
1498         if (ws->cur_layout->l_config != NULL)
1499                 ws->cur_layout->l_config(ws, args->id);
1500
1501         if (args->id != SWM_ARG_ID_STACKINIT);
1502                 stack();
1503 }
1504
1505 void
1506 stack(void) {
1507         struct swm_geometry     g;
1508         struct swm_region       *r;
1509         int                     i, j;
1510
1511         DNPRINTF(SWM_D_STACK, "stack\n");
1512
1513         for (i = 0; i < ScreenCount(display); i++) {
1514                 j = 0;
1515                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
1516                         DNPRINTF(SWM_D_STACK, "stacking workspace %d "
1517                             "(screen %d, region %d)\n", r->ws->idx, i, j++);
1518
1519                         /* start with screen geometry, adjust for bar */
1520                         g = r->g;
1521                         g.w -= 2;
1522                         g.h -= 2;
1523                         if (bar_enabled) {
1524                                 g.y += bar_height;
1525                                 g.h -= bar_height;
1526                         }
1527
1528                         r->ws->restack = 0;
1529                         r->ws->cur_layout->l_stack(r->ws, &g);
1530                 }
1531         }
1532         if (font_adjusted)
1533                 font_adjusted--;
1534         XSync(display, False);
1535 }
1536
1537 void
1538 stack_floater(struct ws_win *win, struct swm_region *r)
1539 {
1540         unsigned int            mask;
1541         XWindowChanges          wc;
1542
1543         if (win == NULL)
1544                 return;
1545
1546         bzero(&wc, sizeof wc);
1547         mask = CWX | CWY | CWBorderWidth | CWWidth | CWHeight;
1548         if ((win->quirks & SWM_Q_FULLSCREEN) && (win->g.w == WIDTH(r)) &&
1549             (win->g.h == HEIGHT(r)))
1550                 wc.border_width = 0;
1551         else
1552                 wc.border_width = 1;
1553         if (win->transient && (win->quirks & SWM_Q_TRANSSZ)) {
1554                 win->g.w = (double)WIDTH(r) * dialog_ratio;
1555                 win->g.h = (double)HEIGHT(r) * dialog_ratio;
1556         }
1557         wc.width = win->g.w;
1558         wc.height = win->g.h;
1559         if (win->manual) {
1560                 wc.x = win->g.x;
1561                 wc.y = win->g.y;
1562         } else {
1563                 wc.x = (WIDTH(r) - win->g.w) / 2;
1564                 wc.y = (HEIGHT(r) - win->g.h) / 2;
1565         }
1566
1567         /* adjust for region */
1568         wc.x += r->g.x;
1569         wc.y += r->g.y;
1570
1571         DNPRINTF(SWM_D_STACK, "stack_floater: win %lu x %d y %d w %d h %d\n",
1572             win->id, wc.x, wc.y, wc.width, wc.height);
1573
1574         XConfigureWindow(display, win->id, mask, &wc);
1575 }
1576
1577 /*
1578  * Send keystrokes to terminal to decrease/increase the font size as the
1579  * window size changes.
1580  */
1581 void
1582 adjust_font(struct ws_win *win)
1583 {
1584         if (!(win->quirks & SWM_Q_XTERM_FONTADJ) ||
1585             win->floating || win->transient)
1586                 return;
1587
1588         if (win->sh.width_inc && win->last_inc != win->sh.width_inc &&
1589             win->g.w / win->sh.width_inc < term_width &&
1590             win->font_steps < SWM_MAX_FONT_STEPS) {
1591                 win->font_size_boundary[win->font_steps] =
1592                     (win->sh.width_inc * term_width) + win->sh.base_width;
1593                 win->font_steps++;
1594                 font_adjusted++;
1595                 win->last_inc = win->sh.width_inc;
1596                 fake_keypress(win, XK_KP_Subtract, ShiftMask);
1597         } else if (win->font_steps && win->last_inc != win->sh.width_inc &&
1598             win->g.w > win->font_size_boundary[win->font_steps - 1]) {
1599                 win->font_steps--;
1600                 font_adjusted++;
1601                 win->last_inc = win->sh.width_inc;
1602                 fake_keypress(win, XK_KP_Add, ShiftMask);
1603         }
1604 }
1605
1606 #define SWAPXY(g)       do {                            \
1607         int tmp;                                        \
1608         tmp = (g)->y; (g)->y = (g)->x; (g)->x = tmp;    \
1609         tmp = (g)->h; (g)->h = (g)->w; (g)->w = tmp;    \
1610 } while (0)
1611 void
1612 stack_master(struct workspace *ws, struct swm_geometry *g, int rot, int flip)
1613 {
1614         XWindowChanges          wc;
1615         struct swm_geometry     win_g, r_g = *g;
1616         struct ws_win           *win;
1617         int                     i, j, s, stacks;
1618         int                     w_inc = 1, h_inc, w_base = 1, h_base;
1619         int                     hrh, extra = 0, h_slice, last_h = 0;
1620         int                     split, colno, winno, mwin, msize, mscale;
1621         int                     remain, missing, v_slice;
1622         unsigned int            mask;
1623
1624         DNPRINTF(SWM_D_STACK, "stack_master: workspace: %d\n rot=%s flip=%s",
1625             ws->idx, rot ? "yes" : "no", flip ? "yes" : "no");
1626
1627         winno = count_win(ws, 0);
1628         if (winno == 0 && count_win(ws, 1) == 0)
1629                 return;
1630
1631         TAILQ_FOREACH(win, &ws->winlist, entry)
1632                 if (win->transient == 0 && win->floating == 0)
1633                         break;
1634
1635         if (win == NULL)
1636                 goto notiles;
1637
1638         if (rot) {
1639                 w_inc = win->sh.width_inc;
1640                 w_base = win->sh.base_width;
1641                 mwin = ws->l_state.horizontal_mwin;
1642                 mscale = ws->l_state.horizontal_msize;
1643                 stacks = ws->l_state.horizontal_stacks;
1644                 SWAPXY(&r_g);
1645         } else {
1646                 w_inc = win->sh.height_inc;
1647                 w_base = win->sh.base_height;
1648                 mwin = ws->l_state.vertical_mwin;
1649                 mscale = ws->l_state.vertical_msize;
1650                 stacks = ws->l_state.vertical_stacks;
1651         }
1652         win_g = r_g;
1653
1654         if (stacks > winno - mwin)
1655                 stacks = winno - mwin;
1656         if (stacks < 1)
1657                 stacks = 1;
1658
1659         h_slice = r_g.h / SWM_H_SLICE;
1660         if (mwin && winno > mwin) {
1661                 v_slice = r_g.w / SWM_V_SLICE;
1662
1663                 split = mwin;
1664                 colno = split;
1665                 win_g.w = v_slice * mscale;
1666
1667                 if (w_inc > 1 && w_inc < v_slice) {
1668                         /* adjust for window's requested size increment */
1669                         remain = (win_g.w - w_base) % w_inc;
1670                         missing = w_inc - remain;
1671                         win_g.w -= remain;
1672                         extra += remain;
1673                 }
1674
1675                 msize = win_g.w;
1676                 if (flip)
1677                         win_g.x += r_g.w - msize;
1678         } else {
1679                 msize = -2;
1680                 colno = split = winno / stacks;
1681                 win_g.w = ((r_g.w - (stacks * 2) + 2) / stacks);
1682         }
1683         hrh = r_g.h / colno;
1684         extra = r_g.h - (colno * hrh);
1685         win_g.h = hrh - 2;
1686
1687         /*  stack all the tiled windows */
1688         i = j = 0, s = stacks;
1689         TAILQ_FOREACH(win, &ws->winlist, entry) {
1690                 if (win->transient != 0 || win->floating != 0)
1691                         continue;
1692
1693                 if (split && i == split) {
1694                         colno = (winno - mwin) / stacks;
1695                         if (s <= (winno - mwin) % stacks)
1696                                 colno++;
1697                         split = split + colno;
1698                         hrh = (r_g.h / colno);
1699                         extra = r_g.h - (colno * hrh);
1700                         if (flip)
1701                                 win_g.x = r_g.x;
1702                         else
1703                                 win_g.x += win_g.w + 2;
1704                         win_g.w = (r_g.w - msize - (stacks * 2)) / stacks;
1705                         if (s == 1)
1706                                 win_g.w += (r_g.w - msize - (stacks * 2)) %
1707                                     stacks;
1708                         s--;
1709                         j = 0;
1710                 }
1711                 win_g.h = hrh - 2;
1712                 if (rot) {
1713                         h_inc = win->sh.width_inc;
1714                         h_base = win->sh.base_width;
1715                 } else {
1716                         h_inc = win->sh.height_inc;
1717                         h_base = win->sh.base_height;
1718                 }
1719                 if (j == colno - 1) {
1720                         win_g.h = hrh + extra;
1721                 } else if (h_inc > 1 && h_inc < h_slice) {
1722                         /* adjust for window's requested size increment */
1723                         remain = (win_g.h - h_base) % h_inc;
1724                         missing = h_inc - remain;
1725
1726                         if (missing <= extra || j == 0) {
1727                                 extra -= missing;
1728                                 win_g.h += missing;
1729                         } else {
1730                                 win_g.h -= remain;
1731                                 extra += remain;
1732                         }
1733                 }
1734
1735                 if (j == 0)
1736                         win_g.y = r_g.y;
1737                 else
1738                         win_g.y += last_h + 2;
1739
1740                 bzero(&wc, sizeof wc);
1741                 wc.border_width = 1;
1742                 if (rot) {
1743                         win->g.x = wc.x = win_g.y;
1744                         win->g.y = wc.y = win_g.x;
1745                         win->g.w = wc.width = win_g.h;
1746                         win->g.h = wc.height = win_g.w;
1747                 } else {
1748                         win->g.x = wc.x = win_g.x;
1749                         win->g.y = wc.y = win_g.y;
1750                         win->g.w = wc.width = win_g.w;
1751                         win->g.h = wc.height = win_g.h;
1752                 }
1753                 adjust_font(win);
1754                 mask = CWX | CWY | CWWidth | CWHeight | CWBorderWidth;
1755                 XConfigureWindow(display, win->id, mask, &wc);
1756                 XMapRaised(display, win->id);
1757
1758                 last_h = win_g.h;
1759                 i++;
1760                 j++;
1761         }
1762
1763  notiles:
1764         /* now, stack all the floaters and transients */
1765         TAILQ_FOREACH(win, &ws->winlist, entry) {
1766                 if (win->transient == 0 && win->floating == 0)
1767                         continue;
1768
1769                 stack_floater(win, ws->r);
1770                 XMapRaised(display, win->id);
1771         }
1772 }
1773
1774 void
1775 vertical_config(struct workspace *ws, int id)
1776 {
1777         DNPRINTF(SWM_D_STACK, "vertical_resize: workspace: %d\n", ws->idx);
1778
1779         switch (id) {
1780         case SWM_ARG_ID_STACKRESET:
1781         case SWM_ARG_ID_STACKINIT:
1782                 ws->l_state.vertical_msize = SWM_V_SLICE / 2;
1783                 ws->l_state.vertical_mwin = 1;
1784                 ws->l_state.vertical_stacks = 1;
1785                 break;
1786         case SWM_ARG_ID_MASTERSHRINK:
1787                 if (ws->l_state.vertical_msize > 1)
1788                         ws->l_state.vertical_msize--;
1789                 break;
1790         case SWM_ARG_ID_MASTERGROW:
1791                 if (ws->l_state.vertical_msize < SWM_V_SLICE - 1)
1792                         ws->l_state.vertical_msize++;
1793                 break;
1794         case SWM_ARG_ID_MASTERADD:
1795                 ws->l_state.vertical_mwin++;
1796                 break;
1797         case SWM_ARG_ID_MASTERDEL:
1798                 if (ws->l_state.vertical_mwin > 0)
1799                         ws->l_state.vertical_mwin--;
1800                 break;
1801         case SWM_ARG_ID_STACKINC:
1802                 ws->l_state.vertical_stacks++;
1803                 break;
1804         case SWM_ARG_ID_STACKDEC:
1805                 if (ws->l_state.vertical_stacks > 1)
1806                         ws->l_state.vertical_stacks--;
1807                 break;
1808         default:
1809                 return;
1810         }
1811 }
1812
1813 void
1814 vertical_stack(struct workspace *ws, struct swm_geometry *g)
1815 {
1816         DNPRINTF(SWM_D_STACK, "vertical_stack: workspace: %d\n", ws->idx);
1817
1818         stack_master(ws, g, 0, 0);
1819 }
1820
1821 void
1822 horizontal_config(struct workspace *ws, int id)
1823 {
1824         DNPRINTF(SWM_D_STACK, "horizontal_config: workspace: %d\n", ws->idx);
1825
1826         switch (id) {
1827         case SWM_ARG_ID_STACKRESET:
1828         case SWM_ARG_ID_STACKINIT:
1829                 ws->l_state.horizontal_mwin = 1;
1830                 ws->l_state.horizontal_msize = SWM_H_SLICE / 2;
1831                 ws->l_state.horizontal_stacks = 1;
1832                 break;
1833         case SWM_ARG_ID_MASTERSHRINK:
1834                 if (ws->l_state.horizontal_msize > 1)
1835                         ws->l_state.horizontal_msize--;
1836                 break;
1837         case SWM_ARG_ID_MASTERGROW:
1838                 if (ws->l_state.horizontal_msize < SWM_H_SLICE - 1)
1839                         ws->l_state.horizontal_msize++;
1840                 break;
1841         case SWM_ARG_ID_MASTERADD:
1842                 ws->l_state.horizontal_mwin++;
1843                 break;
1844         case SWM_ARG_ID_MASTERDEL:
1845                 if (ws->l_state.horizontal_mwin > 0)
1846                         ws->l_state.horizontal_mwin--;
1847                 break;
1848         case SWM_ARG_ID_STACKINC:
1849                 ws->l_state.horizontal_stacks++;
1850                 break;
1851         case SWM_ARG_ID_STACKDEC:
1852                 if (ws->l_state.horizontal_stacks > 1)
1853                         ws->l_state.horizontal_stacks--;
1854                 break;
1855         default:
1856                 return;
1857         }
1858 }
1859
1860 void
1861 horizontal_stack(struct workspace *ws, struct swm_geometry *g)
1862 {
1863         DNPRINTF(SWM_D_STACK, "vertical_stack: workspace: %d\n", ws->idx);
1864
1865         stack_master(ws, g, 1, 0);
1866 }
1867
1868 /* fullscreen view */
1869 void
1870 max_stack(struct workspace *ws, struct swm_geometry *g)
1871 {
1872         XWindowChanges          wc;
1873         struct swm_geometry     gg = *g;
1874         struct ws_win           *win, *wintrans = NULL;
1875         unsigned int            mask;
1876         int                     winno;
1877
1878         DNPRINTF(SWM_D_STACK, "max_stack: workspace: %d\n", ws->idx);
1879
1880         winno = count_win(ws, 0);
1881         if (winno == 0 && count_win(ws, 1) == 0)
1882                 return;
1883
1884         TAILQ_FOREACH(win, &ws->winlist, entry) {
1885                 if (win->transient != 0) {
1886                         wintrans = win;
1887                 } else {
1888                         bzero(&wc, sizeof wc);
1889                         wc.border_width = 1;
1890                         win->g.x = wc.x = gg.x;
1891                         win->g.y = wc.y = gg.y;
1892                         win->g.w = wc.width = gg.w;
1893                         win->g.h = wc.height = gg.h;
1894                         mask = CWX | CWY | CWWidth | CWHeight | CWBorderWidth;
1895                         XConfigureWindow(display, win->id, mask, &wc);
1896                         if (win != ws->focus)
1897                                 unmap_window(win);
1898                 }
1899         }
1900
1901         /* put the last transient on top */
1902         if (wintrans) {
1903                 stack_floater(wintrans, ws->r);
1904                 XMapRaised(display, wintrans->id);
1905                 focus_win(wintrans); /* override */
1906         }
1907 }
1908
1909 void
1910 send_to_ws(struct swm_region *r, union arg *args)
1911 {
1912         int                     wsid = args->id;
1913         struct ws_win           *win = r->ws->focus, *winfocus = NULL;
1914         struct workspace        *ws, *nws;
1915         Atom                    ws_idx_atom = 0;
1916         unsigned char           ws_idx_str[SWM_PROPLEN];
1917
1918         if (win == NULL)
1919                 return;
1920
1921         DNPRINTF(SWM_D_MOVE, "send_to_ws: win: %lu\n", win->id);
1922
1923         ws = win->ws;
1924         nws = &win->s->ws[wsid];
1925
1926         /* find a window to focus */
1927         winfocus = TAILQ_PREV(win, ws_win_list, entry);
1928         if (TAILQ_FIRST(&ws->winlist) == win)
1929                 winfocus = TAILQ_NEXT(win, entry);
1930         else {
1931                 winfocus = TAILQ_PREV(ws->focus, ws_win_list, entry);
1932                 if (winfocus == NULL)
1933                         winfocus = TAILQ_LAST(&ws->winlist, ws_win_list);
1934         }
1935         /* out of windows in ws so focus on nws instead */
1936         if (winfocus == NULL)
1937                 winfocus = win;
1938
1939         unmap_window(win);
1940
1941         TAILQ_REMOVE(&ws->winlist, win, entry);
1942
1943         TAILQ_INSERT_TAIL(&nws->winlist, win, entry);
1944         win->ws = nws;
1945
1946         /* Try to update the window's workspace property */
1947         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
1948         if (ws_idx_atom &&
1949             snprintf(ws_idx_str, SWM_PROPLEN, "%d", nws->idx) < SWM_PROPLEN) {
1950                 DNPRINTF(SWM_D_PROP, "setting property _SWM_WS to %s\n",
1951                     ws_idx_str);
1952                 XChangeProperty(display, win->id, ws_idx_atom, XA_STRING, 8,
1953                     PropModeReplace, ws_idx_str, SWM_PROPLEN);
1954         }
1955
1956         if (count_win(nws, 1) == 1)
1957                 nws->focus = win;
1958         ws->restack = 1;
1959         nws->restack = 1;
1960
1961         stack();
1962         focus_win(winfocus);
1963 }
1964
1965 void
1966 wkill(struct swm_region *r, union arg *args)
1967 {
1968         DNPRINTF(SWM_D_MISC, "wkill %d\n", args->id);
1969
1970         if(r->ws->focus == NULL)
1971                 return;
1972
1973         if (args->id == SWM_ARG_ID_KILLWINDOW)
1974                 XKillClient(display, r->ws->focus->id);
1975         else
1976                 if (r->ws->focus->can_delete)
1977                         client_msg(r->ws->focus, adelete);
1978 }
1979
1980 void
1981 floating_toggle(struct swm_region *r, union arg *args)
1982 {
1983         struct ws_win   *win = r->ws->focus;
1984
1985         if (win == NULL)
1986                 return;
1987
1988         win->floating = !win->floating;
1989         win->manual = 0;
1990         stack();
1991         focus_win(win);
1992 }
1993
1994 void
1995 resize_window(struct ws_win *win, int center)
1996 {
1997         unsigned int            mask;
1998         XWindowChanges          wc;
1999         struct swm_region       *r;
2000
2001         r = root_to_region(win->wa.root);
2002         bzero(&wc, sizeof wc);
2003         mask = CWBorderWidth | CWWidth | CWHeight;
2004         wc.border_width = 1;
2005         wc.width = win->g.w;
2006         wc.height = win->g.h;
2007         if (center == SWM_ARG_ID_CENTER) {
2008                 wc.x = (WIDTH(r) - win->g.w) / 2;
2009                 wc.y = (HEIGHT(r) - win->g.h) / 2;
2010                 mask |= CWX | CWY;
2011         }
2012
2013         DNPRINTF(SWM_D_STACK, "resize_window: win %lu x %d y %d w %d h %d\n",
2014             win->id, wc.x, wc.y, wc.width, wc.height);
2015
2016         XConfigureWindow(display, win->id, mask, &wc);
2017         config_win(win);
2018 }
2019
2020 void
2021 resize(struct ws_win *win, union arg *args)
2022 {
2023         XEvent                  ev;
2024         Time                    time = 0;
2025
2026         DNPRINTF(SWM_D_MOUSE, "resize: win %lu floating %d trans %d\n",
2027             win->id, win->floating, win->transient);
2028
2029         if (!(win->transient != 0 || win->floating != 0))
2030                 return;
2031
2032         if (XGrabPointer(display, win->id, False, MOUSEMASK, GrabModeAsync,
2033             GrabModeAsync, None, None /* cursor */, CurrentTime) != GrabSuccess)
2034                 return;
2035         XWarpPointer(display, None, win->id, 0, 0, 0, 0, win->g.w, win->g.h);
2036         do {
2037                 XMaskEvent(display, MOUSEMASK | ExposureMask |
2038                     SubstructureRedirectMask, &ev);
2039                 switch(ev.type) {
2040                 case ConfigureRequest:
2041                 case Expose:
2042                 case MapRequest:
2043                         handler[ev.type](&ev);
2044                         break;
2045                 case MotionNotify:
2046                         if (ev.xmotion.x <= 1)
2047                                 ev.xmotion.x = 1;
2048                         if (ev.xmotion.y <= 1)
2049                                 ev.xmotion.y = 1;
2050                         win->g.w = ev.xmotion.x;
2051                         win->g.h = ev.xmotion.y;
2052
2053                         /* not free, don't sync more than 60 times / second */
2054                         if ((ev.xmotion.time - time) > (1000 / 60) ) {
2055                                 time = ev.xmotion.time;
2056                                 XSync(display, False);
2057                                 resize_window(win, args->id);
2058                         }
2059                         break;
2060                 }
2061         } while (ev.type != ButtonRelease);
2062         if (time) {
2063                 XSync(display, False);
2064                 resize_window(win, args->id);
2065         }
2066         XWarpPointer(display, None, win->id, 0, 0, 0, 0, win->g.w - 1,
2067             win->g.h - 1);
2068         XUngrabPointer(display, CurrentTime);
2069
2070         /* drain events */
2071         while (XCheckMaskEvent(display, EnterWindowMask, &ev));
2072 }
2073
2074 void
2075 move_window(struct ws_win *win)
2076 {
2077         unsigned int            mask;
2078         XWindowChanges          wc;
2079         struct swm_region       *r;
2080
2081         r = root_to_region(win->wa.root);
2082         bzero(&wc, sizeof wc);
2083         mask = CWX | CWY;
2084         wc.x = win->g.x;
2085         wc.y = win->g.y;
2086
2087         DNPRINTF(SWM_D_STACK, "move_window: win %lu x %d y %d w %d h %d\n",
2088             win->id, wc.x, wc.y, wc.width, wc.height);
2089
2090         XConfigureWindow(display, win->id, mask, &wc);
2091         config_win(win);
2092 }
2093
2094 void
2095 move(struct ws_win *win, union arg *args)
2096 {
2097         XEvent                  ev;
2098         Time                    time = 0;
2099         int                     restack = 0;
2100
2101         DNPRINTF(SWM_D_MOUSE, "move: win %lu floating %d trans %d\n",
2102             win->id, win->floating, win->transient);
2103
2104         if (win->floating == 0) {
2105                 win->floating = 1;
2106                 win->manual = 1;
2107                 restack = 1;
2108         }
2109
2110         if (XGrabPointer(display, win->id, False, MOUSEMASK, GrabModeAsync,
2111             GrabModeAsync, None, None /* cursor */, CurrentTime) != GrabSuccess)
2112                 return;
2113         XWarpPointer(display, None, win->id, 0, 0, 0, 0, 0, 0);
2114         do {
2115                 XMaskEvent(display, MOUSEMASK | ExposureMask |
2116                     SubstructureRedirectMask, &ev);
2117                 switch(ev.type) {
2118                 case ConfigureRequest:
2119                 case Expose:
2120                 case MapRequest:
2121                         handler[ev.type](&ev);
2122                         break;
2123                 case MotionNotify:
2124                         win->g.x = ev.xmotion.x_root;
2125                         win->g.y = ev.xmotion.y_root;
2126
2127                         /* not free, don't sync more than 60 times / second */
2128                         if ((ev.xmotion.time - time) > (1000 / 60) ) {
2129                                 time = ev.xmotion.time;
2130                                 XSync(display, False);
2131                                 move_window(win);
2132                         }
2133                         break;
2134                 }
2135         } while (ev.type != ButtonRelease);
2136         if (time) {
2137                 XSync(display, False);
2138                 move_window(win);
2139         }
2140         XWarpPointer(display, None, win->id, 0, 0, 0, 0, 0, 0);
2141         XUngrabPointer(display, CurrentTime);
2142         if (restack)
2143                 stack();
2144
2145         /* drain events */
2146         while (XCheckMaskEvent(display, EnterWindowMask, &ev));
2147 }
2148
2149 /* key definitions */
2150 void
2151 dummykeyfunc(struct swm_region *r, union arg *args)
2152 {
2153 };
2154
2155 void
2156 legacyfunc(struct swm_region *r, union arg *args)
2157 {
2158 };
2159
2160 struct keyfunc {
2161         char                    name[SWM_FUNCNAME_LEN];
2162         void                    (*func)(struct swm_region *r, union arg *);
2163         union arg               args;
2164 } keyfuncs[kf_invalid + 1] = {
2165         /* name                 function        argument */
2166         { "cycle_layout",       cycle_layout,   {0} },
2167         { "stack_reset",        stack_config,   {.id = SWM_ARG_ID_STACKRESET} },
2168         { "master_shrink",      stack_config,   {.id = SWM_ARG_ID_MASTERSHRINK} },
2169         { "master_grow",        stack_config,   {.id = SWM_ARG_ID_MASTERGROW} },
2170         { "master_add",         stack_config,   {.id = SWM_ARG_ID_MASTERADD} },
2171         { "master_del",         stack_config,   {.id = SWM_ARG_ID_MASTERDEL} },
2172         { "stack_inc",          stack_config,   {.id = SWM_ARG_ID_STACKINC} },
2173         { "stack_dec",          stack_config,   {.id = SWM_ARG_ID_STACKDEC} },
2174         { "swap_main",          swapwin,        {.id = SWM_ARG_ID_SWAPMAIN} },
2175         { "focus_next",         focus,          {.id = SWM_ARG_ID_FOCUSNEXT} },
2176         { "focus_prev",         focus,          {.id = SWM_ARG_ID_FOCUSPREV} },
2177         { "swap_next",          swapwin,        {.id = SWM_ARG_ID_SWAPNEXT} },
2178         { "swap_prev",          swapwin,        {.id = SWM_ARG_ID_SWAPPREV} },
2179         { "spawn_term",         spawnterm,      {.argv = spawn_term} },
2180         { "spawn_menu",         legacyfunc,     {0} },
2181         { "quit",               quit,           {0} },
2182         { "restart",            restart,        {0} },
2183         { "focus_main",         focus,          {.id = SWM_ARG_ID_FOCUSMAIN} },
2184         { "ws_1",               switchws,       {.id = 0} },
2185         { "ws_2",               switchws,       {.id = 1} },
2186         { "ws_3",               switchws,       {.id = 2} },
2187         { "ws_4",               switchws,       {.id = 3} },
2188         { "ws_5",               switchws,       {.id = 4} },
2189         { "ws_6",               switchws,       {.id = 5} },
2190         { "ws_7",               switchws,       {.id = 6} },
2191         { "ws_8",               switchws,       {.id = 7} },
2192         { "ws_9",               switchws,       {.id = 8} },
2193         { "ws_10",              switchws,       {.id = 9} },
2194         { "ws_next",            cyclews,        {.id = SWM_ARG_ID_CYCLEWS_UP} },
2195         { "ws_prev",            cyclews,        {.id = SWM_ARG_ID_CYCLEWS_DOWN} },
2196         { "screen_next",        cyclescr,       {.id = SWM_ARG_ID_CYCLESC_UP} },
2197         { "screen_prev",        cyclescr,       {.id = SWM_ARG_ID_CYCLESC_DOWN} },
2198         { "mvws_1",             send_to_ws,     {.id = 0} },
2199         { "mvws_2",             send_to_ws,     {.id = 1} },
2200         { "mvws_3",             send_to_ws,     {.id = 2} },
2201         { "mvws_4",             send_to_ws,     {.id = 3} },
2202         { "mvws_5",             send_to_ws,     {.id = 4} },
2203         { "mvws_6",             send_to_ws,     {.id = 5} },
2204         { "mvws_7",             send_to_ws,     {.id = 6} },
2205         { "mvws_8",             send_to_ws,     {.id = 7} },
2206         { "mvws_9",             send_to_ws,     {.id = 8} },
2207         { "mvws_10",            send_to_ws,     {.id = 9} },
2208         { "bar_toggle",         bar_toggle,     {0} },
2209         { "wind_kill",          wkill,          {.id = SWM_ARG_ID_KILLWINDOW} },
2210         { "wind_del",           wkill,          {.id = SWM_ARG_ID_DELETEWINDOW} },
2211         { "screenshot_all",     legacyfunc,     {0} },
2212         { "screenshot_wind",    legacyfunc,     {0} },
2213         { "float_toggle",       floating_toggle,{0} },
2214         { "version",            version,        {0} },
2215         { "spawn_lock",         legacyfunc,     {0} },
2216         { "spawn_initscr",      legacyfunc,     {0} },
2217         { "spawn_custom",       dummykeyfunc,   {0} },
2218         { "invalid key func",   NULL,           {0} },
2219 };
2220 struct key {
2221         unsigned int            mod;
2222         KeySym                  keysym;
2223         enum keyfuncid          funcid;
2224         char                    *spawn_name;
2225 };
2226 int                             keys_size = 0, keys_length = 0;
2227 struct key                      *keys = NULL;
2228
2229 /* mouse */
2230 enum { client_click, root_click };
2231 struct button {
2232         unsigned int            action;
2233         unsigned int            mask;
2234         unsigned int            button;
2235         void                    (*func)(struct ws_win *, union arg *);
2236         union arg               args;
2237 } buttons[] = {
2238           /* action     key             mouse button    func    args */
2239         { client_click, MODKEY,         Button3,        resize, {.id = SWM_ARG_ID_DONTCENTER} },
2240         { client_click, MODKEY | ShiftMask, Button3,    resize, {.id = SWM_ARG_ID_CENTER} },
2241         { client_click, MODKEY,         Button1,        move,   {0} },
2242 };
2243
2244 void
2245 update_modkey(unsigned int mod)
2246 {
2247         int                     i;
2248
2249         mod_key = mod;
2250         for (i = 0; i < keys_length; i++)
2251                 if (keys[i].mod & ShiftMask)
2252                         keys[i].mod = mod | ShiftMask;
2253                 else
2254                         keys[i].mod = mod;
2255
2256         for (i = 0; i < LENGTH(buttons); i++)
2257                 if (buttons[i].mask & ShiftMask)
2258                         buttons[i].mask = mod | ShiftMask;
2259                 else
2260                         buttons[i].mask = mod;
2261 }
2262
2263 /* spawn */
2264 struct spawn_prog {
2265         char                    *name;
2266         int                     argc;
2267         char                    **argv;
2268 };
2269
2270 int                             spawns_size = 0, spawns_length = 0;
2271 struct spawn_prog               *spawns = NULL;
2272
2273 void
2274 spawn_custom(struct swm_region *r, union arg *args, char *spawn_name)
2275 {
2276         union arg               a;
2277         struct spawn_prog       *prog = NULL;
2278         int                     i;
2279         char                    *ap, **real_args;
2280
2281         DNPRINTF(SWM_D_SPAWN, "spawn_custom %s\n", spawn_name);
2282
2283         /* find program */
2284         for (i = 0; i < spawns_length; i++) {
2285                 if (!strcasecmp(spawn_name, spawns[i].name))
2286                         prog = &spawns[i];
2287         }
2288         if (prog == NULL) {
2289                 fprintf(stderr, "spawn_custom: program %s not found\n",
2290                     spawn_name);
2291                 return;
2292         }
2293
2294         /* make room for expanded args */
2295         if ((real_args = calloc(prog->argc + 1, sizeof(char *))) == NULL)
2296                 err(1, "spawn_custom: calloc real_args");
2297
2298         /* expand spawn_args into real_args */
2299         for (i = 0; i < prog->argc; i++) {
2300                 ap = prog->argv[i];
2301                 DNPRINTF(SWM_D_SPAWN, "spawn_custom: raw arg = %s\n", ap);
2302                 if (!strcasecmp(ap, "$bar_border")) {
2303                         if ((real_args[i] =
2304                             strdup(r->s->c[SWM_S_COLOR_BAR_BORDER].name))
2305                             == NULL)
2306                                 err(1,  "spawn_custom border color");
2307                 } else if (!strcasecmp(ap, "$bar_color")) {
2308                         if ((real_args[i] =
2309                             strdup(r->s->c[SWM_S_COLOR_BAR].name))
2310                             == NULL)
2311                                 err(1, "spawn_custom bar color");
2312                 } else if (!strcasecmp(ap, "$bar_font")) {
2313                         if ((real_args[i] = strdup(bar_fonts[bar_fidx]))
2314                             == NULL)
2315                                 err(1, "spawn_custom bar fonts");
2316                 } else if (!strcasecmp(ap, "$bar_font_color")) {
2317                         if ((real_args[i] =
2318                             strdup(r->s->c[SWM_S_COLOR_BAR_FONT].name))
2319                             == NULL)
2320                                 err(1, "spawn_custom color font");
2321                 } else if (!strcasecmp(ap, "$color_focus")) {
2322                         if ((real_args[i] =
2323                             strdup(r->s->c[SWM_S_COLOR_FOCUS].name))
2324                             == NULL)
2325                                 err(1, "spawn_custom color focus");
2326                 } else if (!strcasecmp(ap, "$color_unfocus")) {
2327                         if ((real_args[i] =
2328                             strdup(r->s->c[SWM_S_COLOR_UNFOCUS].name))
2329                             == NULL)
2330                                 err(1, "spawn_custom color unfocus");
2331                 } else {
2332                         /* no match --> copy as is */
2333                         if ((real_args[i] = strdup(ap)) == NULL)
2334                                 err(1, "spawn_custom strdup(ap)");
2335                 }
2336                 DNPRINTF(SWM_D_SPAWN, "spawn_custom: cooked arg = %s\n",
2337                     real_args[i]);
2338         }
2339
2340 #ifdef SWM_DEBUG
2341         if ((swm_debug & SWM_D_SPAWN) != 0) {
2342                 fprintf(stderr, "spawn_custom: result = ");
2343                 for (i = 0; i < prog->argc; i++)
2344                         fprintf(stderr, "\"%s\" ", real_args[i]);
2345                 fprintf(stderr, "\n");
2346         }
2347 #endif
2348
2349         a.argv = real_args;
2350         spawn(r, &a);
2351         for (i = 0; i < prog->argc; i++)
2352                 free(real_args[i]);
2353         free(real_args);
2354 }
2355
2356 void
2357 setspawn(struct spawn_prog *prog)
2358 {
2359         int                     i, j;
2360
2361         if (prog == NULL || prog->name == NULL)
2362                 return;
2363
2364         /* find existing */
2365         for (i = 0; i < spawns_length; i++) {
2366                 if (!strcmp(spawns[i].name, prog->name)) {
2367                         /* found */
2368                         if (prog->argv == NULL) {
2369                                 /* delete */
2370                                 DNPRINTF(SWM_D_SPAWN,
2371                                     "setspawn: delete #%d %s\n",
2372                                     i, spawns[i].name);
2373                                 free(spawns[i].name);
2374                                 for (j = 0; j < spawns[i].argc; j++)
2375                                         free(spawns[i].argv[j]);
2376                                 free(spawns[i].argv);
2377                                 j = spawns_length - 1;
2378                                 if (i < j)
2379                                         spawns[i] = spawns[j];
2380                                 spawns_length--;
2381                                 free(prog->name);
2382                         } else {
2383                                 /* replace */
2384                                 DNPRINTF(SWM_D_SPAWN,
2385                                     "setspawn: replace #%d %s\n",
2386                                     i, spawns[i].name);
2387                                 free(spawns[i].name);
2388                                 for (j = 0; j < spawns[i].argc; j++)
2389                                         free(spawns[i].argv[j]);
2390                                 free(spawns[i].argv);
2391                                 spawns[i] = *prog;
2392                         }
2393                         /* found case handled */
2394                         free(prog);
2395                         return;
2396                 }
2397         }
2398
2399         if (prog->argv == NULL) {
2400                 fprintf(stderr,
2401                     "error: setspawn: cannot find program %s", prog->name);
2402                 free(prog);
2403                 return;
2404         }
2405
2406         /* not found: add */
2407         if (spawns_size == 0 || spawns == NULL) {
2408                 spawns_size = 4;
2409                 DNPRINTF(SWM_D_SPAWN, "setspawn: init list %d\n", spawns_size);
2410                 spawns = malloc((size_t)spawns_size *
2411                     sizeof(struct spawn_prog));
2412                 if (spawns == NULL) {
2413                         fprintf(stderr, "setspawn: malloc failed\n");
2414                         perror(" failed");
2415                         quit(NULL, NULL);
2416                 }
2417         } else if (spawns_length == spawns_size) {
2418                 spawns_size *= 2;
2419                 DNPRINTF(SWM_D_SPAWN, "setspawn: grow list %d\n", spawns_size);
2420                 spawns = realloc(spawns, (size_t)spawns_size *
2421                     sizeof(struct spawn_prog));
2422                 if (spawns == NULL) {
2423                         fprintf(stderr, "setspawn: realloc failed\n");
2424                         perror(" failed");
2425                         quit(NULL, NULL);
2426                 }
2427         }
2428
2429         if (spawns_length < spawns_size) {
2430                 DNPRINTF(SWM_D_SPAWN, "setspawn: add #%d %s\n",
2431                     spawns_length, prog->name);
2432                 i = spawns_length++;
2433                 spawns[i] = *prog;
2434         } else {
2435                 fprintf(stderr, "spawns array problem?\n");
2436                 if (spawns == NULL) {
2437                         fprintf(stderr, "spawns array is NULL!\n");
2438                         quit(NULL, NULL);
2439                 }
2440         }
2441         free(prog);
2442 }
2443
2444 int
2445 setconfspawn(char *selector, char *value, int flags)
2446 {
2447         struct spawn_prog       *prog;
2448         char                    *vp, *cp, *word;
2449
2450         DNPRINTF(SWM_D_SPAWN, "setconfspawn: [%s] [%s]\n", selector, value);
2451         if ((prog = calloc(1, sizeof *prog)) == NULL)
2452                 err(1, "setconfspawn: calloc prog");
2453         prog->name = strdup(selector);
2454         if (prog->name == NULL)
2455                 err(1, "setconfspawn prog->name");
2456         if ((cp = vp = strdup(value)) == NULL)
2457                 err(1, "setconfspawn: strdup(value) ");
2458         while ((word = strsep(&cp, " \t")) != NULL) {
2459                 DNPRINTF(SWM_D_SPAWN, "setconfspawn: arg [%s]\n", word);
2460                 if (cp)
2461                         cp += (long)strspn(cp, " \t");
2462                 if (strlen(word) > 0) {
2463                         prog->argc++;
2464                         prog->argv = realloc(prog->argv,
2465                             prog->argc * sizeof(char *));
2466                         if ((prog->argv[prog->argc - 1] = strdup(word)) == NULL)
2467                                 err(1, "setconfspawn: strdup");
2468                 }
2469         }
2470         free(vp);
2471
2472         setspawn(prog);
2473
2474         DNPRINTF(SWM_D_SPAWN, "setconfspawn: done\n");
2475         return (0);
2476 }
2477
2478 void
2479 setup_spawn(void)
2480 {
2481         setconfspawn("term",            "xterm",                0);
2482         setconfspawn("screenshot_all",  "screenshot.sh full",   0);
2483         setconfspawn("screenshot_wind", "screenshot.sh window", 0);
2484         setconfspawn("lock",            "xlock",                0);
2485         setconfspawn("initscr",         "initscreen.sh",        0);
2486         setconfspawn("menu",            "dmenu_run"
2487                                         " -fn $bar_font"
2488                                         " -nb $bar_color"
2489                                         " -nf $bar_font_color"
2490                                         " -sb $bar_border"
2491                                         " -sf $bar_color",      0);
2492 }
2493
2494 /* key bindings */
2495 #define SWM_MODNAME_SIZE        32
2496 #define SWM_KEY_WS              "\n+ \t"
2497 int
2498 parsekeys(char *keystr, unsigned int currmod, unsigned int *mod, KeySym *ks)
2499 {
2500         char                    *cp, *name;
2501         KeySym                  uks;
2502         DNPRINTF(SWM_D_KEY, "parsekeys: enter [%s]\n", keystr);
2503         if (mod == NULL || ks == NULL) {
2504                 DNPRINTF(SWM_D_KEY, "parsekeys: no mod or key vars\n");
2505                 return (1);
2506         }
2507         if (keystr == NULL || strlen(keystr) == 0) {
2508                 DNPRINTF(SWM_D_KEY, "parsekeys: no keystr\n");
2509                 return (1);
2510         }
2511         cp = keystr;
2512         *ks = NoSymbol;
2513         *mod = 0;
2514         while ((name = strsep(&cp, SWM_KEY_WS)) != NULL) {
2515                 DNPRINTF(SWM_D_KEY, "parsekeys: key [%s]\n", name);
2516                 if (cp)
2517                         cp += (long)strspn(cp, SWM_KEY_WS);
2518                 if (strncasecmp(name, "MOD", SWM_MODNAME_SIZE) == 0)
2519                         *mod |= currmod;
2520                 else if (!strncasecmp(name, "Mod1", SWM_MODNAME_SIZE))
2521                         *mod |= Mod1Mask;
2522                 else if (!strncasecmp(name, "Mod2", SWM_MODNAME_SIZE))
2523                         *mod += Mod2Mask;
2524                 else if (!strncmp(name, "Mod3", SWM_MODNAME_SIZE))
2525                         *mod |= Mod3Mask;
2526                 else if (!strncmp(name, "Mod4", SWM_MODNAME_SIZE))
2527                         *mod |= Mod4Mask;
2528                 else if (strncasecmp(name, "SHIFT", SWM_MODNAME_SIZE) == 0)
2529                         *mod |= ShiftMask;
2530                 else if (strncasecmp(name, "CONTROL", SWM_MODNAME_SIZE) == 0)
2531                         *mod |= ControlMask;
2532                 else {
2533                         *ks = XStringToKeysym(name);
2534                         XConvertCase(*ks, ks, &uks);
2535                         if (ks == NoSymbol) {
2536                                 DNPRINTF(SWM_D_KEY,
2537                                     "parsekeys: invalid key %s\n",
2538                                     name);
2539                                 return (1);
2540                         }
2541                 }
2542         }
2543         DNPRINTF(SWM_D_KEY, "parsekeys: leave ok\n");
2544         return (0);
2545 }
2546 char *
2547 strdupsafe(char *str)
2548 {
2549         if (str == NULL)
2550                 return (NULL);
2551         else
2552                 return (strdup(str));
2553 }
2554 void
2555 setkeybinding(unsigned int mod, KeySym ks, enum keyfuncid kfid, char *spawn_name)
2556 {
2557         int                     i, j;
2558         DNPRINTF(SWM_D_KEY, "setkeybinding: enter %s [%s]\n",
2559             keyfuncs[kfid].name, spawn_name);
2560         /* find existing */
2561         for (i = 0; i < keys_length; i++) {
2562                 if (keys[i].mod == mod && keys[i].keysym == ks) {
2563                         if (kfid == kf_invalid) {
2564                                 /* found: delete */
2565                                 DNPRINTF(SWM_D_KEY,
2566                                     "setkeybinding: delete #%d %s\n",
2567                                     i, keyfuncs[keys[i].funcid].name);
2568                                 free(keys[i].spawn_name);
2569                                 j = keys_length - 1;
2570                                 if (i < j)
2571                                         keys[i] = keys[j];
2572                                 keys_length--;
2573                                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2574                                 return;
2575                         } else {
2576                                 /* found: replace */
2577                                 DNPRINTF(SWM_D_KEY,
2578                                     "setkeybinding: replace #%d %s %s\n",
2579                                     i, keyfuncs[keys[i].funcid].name,
2580                                     spawn_name);
2581                                 free(keys[i].spawn_name);
2582                                 keys[i].mod = mod;
2583                                 keys[i].keysym = ks;
2584                                 keys[i].funcid = kfid;
2585                                 keys[i].spawn_name = strdupsafe(spawn_name);
2586                                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2587                                 return;
2588                         }
2589                 }
2590         }
2591         if (kfid == kf_invalid) {
2592                 fprintf(stderr,
2593                     "error: setkeybinding: cannot find mod/key combination");
2594                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2595                 return;
2596         }
2597         /* not found: add */
2598         if (keys_size == 0 || keys == NULL) {
2599                 keys_size = 4;
2600                 DNPRINTF(SWM_D_KEY, "setkeybinding: init list %d\n", keys_size);
2601                 keys = malloc((size_t)keys_size * sizeof(struct key));
2602                 if (!keys) {
2603                         fprintf(stderr, "malloc failed\n");
2604                         perror(" failed");
2605                         quit(NULL, NULL);
2606                 }
2607         } else if (keys_length == keys_size) {
2608                 keys_size *= 2;
2609                 DNPRINTF(SWM_D_KEY, "setkeybinding: grow list %d\n", keys_size);
2610                 keys = realloc(keys, (size_t)keys_size * sizeof(struct key));
2611                 if (!keys) {
2612                         fprintf(stderr, "realloc failed\n");
2613                         perror(" failed");
2614                         quit(NULL, NULL);
2615                 }
2616         }
2617         if (keys_length < keys_size) {
2618                 j = keys_length++;
2619                 DNPRINTF(SWM_D_KEY, "setkeybinding: add #%d %s %s\n",
2620                     j, keyfuncs[kfid].name, spawn_name);
2621                 keys[j].mod = mod;
2622                 keys[j].keysym = ks;
2623                 keys[j].funcid = kfid;
2624                 keys[j].spawn_name = strdupsafe(spawn_name);
2625         } else {
2626                 fprintf(stderr, "keys array problem?\n");
2627                 if (!keys) {
2628                         fprintf(stderr, "keys array problem\n");
2629                         quit(NULL, NULL);
2630                 }
2631         }
2632         DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2633 }
2634 int
2635 setconfbinding(char *selector, char *value, int flags)
2636 {
2637         enum keyfuncid          kfid;
2638         unsigned int            mod;
2639         KeySym                  ks;
2640         int                     i;
2641         DNPRINTF(SWM_D_KEY, "setconfbinding: enter\n");
2642         if (selector == NULL) {
2643                 DNPRINTF(SWM_D_KEY, "setconfbinding: unbind %s\n", value);
2644                 if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2645                         kfid = kf_invalid;
2646                         setkeybinding(mod, ks, kfid, NULL);
2647                         return (0);
2648                 } else
2649                         return (1);
2650         }
2651         /* search by key function name */
2652         for (kfid = 0; kfid < kf_invalid; (kfid)++) {
2653                 if (strncasecmp(selector, keyfuncs[kfid].name,
2654                     SWM_FUNCNAME_LEN) == 0) {
2655                         DNPRINTF(SWM_D_KEY, "setconfbinding: %s: match\n",
2656                             selector);
2657                         if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2658                                 setkeybinding(mod, ks, kfid, NULL);
2659                                 return (0);
2660                         } else
2661                                 return (1);
2662                 }
2663         }
2664         /* search by custom spawn name */
2665         for (i = 0; i < spawns_length; i++) {
2666                 if (strcasecmp(selector, spawns[i].name) == 0) {
2667                         DNPRINTF(SWM_D_KEY, "setconfbinding: %s: match\n",
2668                             selector);
2669                         if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2670                                 setkeybinding(mod, ks, kf_spawn_custom,
2671                                     spawns[i].name);
2672                                 return (0);
2673                         } else
2674                                 return (1);
2675                 }
2676         }
2677         DNPRINTF(SWM_D_KEY, "setconfbinding: no match\n");
2678         return (1);
2679 }
2680 void
2681 setup_keys(void)
2682 {
2683         setkeybinding(MODKEY,           XK_space,       kf_cycle_layout,NULL);
2684         setkeybinding(MODKEY|ShiftMask, XK_space,       kf_stack_reset, NULL);
2685         setkeybinding(MODKEY,           XK_h,           kf_master_shrink,NULL);
2686         setkeybinding(MODKEY,           XK_l,           kf_master_grow, NULL);
2687         setkeybinding(MODKEY,           XK_comma,       kf_master_add,  NULL);
2688         setkeybinding(MODKEY,           XK_period,      kf_master_del,  NULL);
2689         setkeybinding(MODKEY|ShiftMask, XK_comma,       kf_stack_inc,   NULL);
2690         setkeybinding(MODKEY|ShiftMask, XK_period,      kf_stack_dec,   NULL);
2691         setkeybinding(MODKEY,           XK_Return,      kf_swap_main,   NULL);
2692         setkeybinding(MODKEY,           XK_j,           kf_focus_next,  NULL);
2693         setkeybinding(MODKEY,           XK_k,           kf_focus_prev,  NULL);
2694         setkeybinding(MODKEY|ShiftMask, XK_j,           kf_swap_next,   NULL);
2695         setkeybinding(MODKEY|ShiftMask, XK_k,           kf_swap_prev,   NULL);
2696         setkeybinding(MODKEY|ShiftMask, XK_Return,      kf_spawn_term,  NULL);
2697         setkeybinding(MODKEY,           XK_p,           kf_spawn_custom,        "menu");
2698         setkeybinding(MODKEY|ShiftMask, XK_q,           kf_quit,        NULL);
2699         setkeybinding(MODKEY,           XK_q,           kf_restart,     NULL);
2700         setkeybinding(MODKEY,           XK_m,           kf_focus_main,  NULL);
2701         setkeybinding(MODKEY,           XK_1,           kf_ws_1,        NULL);
2702         setkeybinding(MODKEY,           XK_2,           kf_ws_2,        NULL);
2703         setkeybinding(MODKEY,           XK_3,           kf_ws_3,        NULL);
2704         setkeybinding(MODKEY,           XK_4,           kf_ws_4,        NULL);
2705         setkeybinding(MODKEY,           XK_5,           kf_ws_5,        NULL);
2706         setkeybinding(MODKEY,           XK_6,           kf_ws_6,        NULL);
2707         setkeybinding(MODKEY,           XK_7,           kf_ws_7,        NULL);
2708         setkeybinding(MODKEY,           XK_8,           kf_ws_8,        NULL);
2709         setkeybinding(MODKEY,           XK_9,           kf_ws_9,        NULL);
2710         setkeybinding(MODKEY,           XK_0,           kf_ws_10,       NULL);
2711         setkeybinding(MODKEY,           XK_Right,       kf_ws_next,     NULL);
2712         setkeybinding(MODKEY,           XK_Left,        kf_ws_prev,     NULL);
2713         setkeybinding(MODKEY|ShiftMask, XK_Right,       kf_screen_next, NULL);
2714         setkeybinding(MODKEY|ShiftMask, XK_Left,        kf_screen_prev, NULL);
2715         setkeybinding(MODKEY|ShiftMask, XK_1,           kf_mvws_1,      NULL);
2716         setkeybinding(MODKEY|ShiftMask, XK_2,           kf_mvws_2,      NULL);
2717         setkeybinding(MODKEY|ShiftMask, XK_3,           kf_mvws_3,      NULL);
2718         setkeybinding(MODKEY|ShiftMask, XK_4,           kf_mvws_4,      NULL);
2719         setkeybinding(MODKEY|ShiftMask, XK_5,           kf_mvws_5,      NULL);
2720         setkeybinding(MODKEY|ShiftMask, XK_6,           kf_mvws_6,      NULL);
2721         setkeybinding(MODKEY|ShiftMask, XK_7,           kf_mvws_7,      NULL);
2722         setkeybinding(MODKEY|ShiftMask, XK_8,           kf_mvws_8,      NULL);
2723         setkeybinding(MODKEY|ShiftMask, XK_9,           kf_mvws_9,      NULL);
2724         setkeybinding(MODKEY|ShiftMask, XK_0,           kf_mvws_10,     NULL);
2725         setkeybinding(MODKEY,           XK_b,           kf_bar_toggle,  NULL);
2726         setkeybinding(MODKEY,           XK_Tab,         kf_focus_next,  NULL);
2727         setkeybinding(MODKEY|ShiftMask, XK_Tab,         kf_focus_prev,  NULL);
2728         setkeybinding(MODKEY|ShiftMask, XK_x,           kf_wind_kill,   NULL);
2729         setkeybinding(MODKEY,           XK_x,           kf_wind_del,    NULL);
2730         setkeybinding(MODKEY,           XK_s,           kf_spawn_custom,        "screenshot_all");
2731         setkeybinding(MODKEY|ShiftMask, XK_s,           kf_spawn_custom,        "screenshot_wind");
2732         setkeybinding(MODKEY,           XK_t,           kf_float_toggle,NULL);
2733         setkeybinding(MODKEY|ShiftMask, XK_v,           kf_version,     NULL);
2734         setkeybinding(MODKEY|ShiftMask, XK_Delete,      kf_spawn_custom,        "lock");
2735         setkeybinding(MODKEY|ShiftMask, XK_i,           kf_spawn_custom,        "initscr");
2736 }
2737 void
2738 updatenumlockmask(void)
2739 {
2740         unsigned int            i, j;
2741         XModifierKeymap         *modmap;
2742
2743         DNPRINTF(SWM_D_MISC, "updatenumlockmask\n");
2744         numlockmask = 0;
2745         modmap = XGetModifierMapping(display);
2746         for (i = 0; i < 8; i++)
2747                 for (j = 0; j < modmap->max_keypermod; j++)
2748                         if (modmap->modifiermap[i * modmap->max_keypermod + j]
2749                           == XKeysymToKeycode(display, XK_Num_Lock))
2750                                 numlockmask = (1 << i);
2751
2752         XFreeModifiermap(modmap);
2753 }
2754
2755 void
2756 grabkeys(void)
2757 {
2758         unsigned int            i, j, k;
2759         KeyCode                 code;
2760         unsigned int            modifiers[] =
2761             { 0, LockMask, numlockmask, numlockmask | LockMask };
2762
2763         DNPRINTF(SWM_D_MISC, "grabkeys\n");
2764         updatenumlockmask();
2765
2766         for (k = 0; k < ScreenCount(display); k++) {
2767                 if (TAILQ_EMPTY(&screens[k].rl))
2768                         continue;
2769                 XUngrabKey(display, AnyKey, AnyModifier, screens[k].root);
2770                 for (i = 0; i < keys_length; i++) {
2771                         if ((code = XKeysymToKeycode(display, keys[i].keysym)))
2772                                 for (j = 0; j < LENGTH(modifiers); j++)
2773                                         XGrabKey(display, code,
2774                                             keys[i].mod | modifiers[j],
2775                                             screens[k].root, True,
2776                                             GrabModeAsync, GrabModeAsync);
2777                 }
2778         }
2779 }
2780
2781 void
2782 grabbuttons(struct ws_win *win, int focused)
2783 {
2784         unsigned int            i, j;
2785         unsigned int            modifiers[] =
2786             { 0, LockMask, numlockmask, numlockmask|LockMask };
2787
2788         updatenumlockmask();
2789         XUngrabButton(display, AnyButton, AnyModifier, win->id);
2790         if(focused) {
2791                 for (i = 0; i < LENGTH(buttons); i++)
2792                         if (buttons[i].action == client_click)
2793                                 for (j = 0; j < LENGTH(modifiers); j++)
2794                                         XGrabButton(display, buttons[i].button,
2795                                             buttons[i].mask | modifiers[j],
2796                                             win->id, False, BUTTONMASK,
2797                                             GrabModeAsync, GrabModeSync, None,
2798                                             None);
2799         } else
2800                 XGrabButton(display, AnyButton, AnyModifier, win->id, False,
2801                     BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
2802 }
2803
2804 const char *quirkname[] = {
2805         "NONE",         /* config string for "no value" */
2806         "FLOAT",
2807         "TRANSSZ",
2808         "ANYWHERE",
2809         "XTERM_FONTADJ",
2810         "FULLSCREEN",
2811 };
2812
2813 /* SWM_Q_WS: retain '|' for back compat for now (2009-08-11) */
2814 #define SWM_Q_WS                "\n|+ \t"
2815 int
2816 parsequirks(char *qstr, unsigned long *quirk)
2817 {
2818         char                    *cp, *name;
2819         int                     i;
2820
2821         if (quirk == NULL)
2822                 return (1);
2823
2824         cp = qstr;
2825         *quirk = 0;
2826         while ((name = strsep(&cp, SWM_Q_WS)) != NULL) {
2827                 if (cp)
2828                         cp += (long)strspn(cp, SWM_Q_WS);
2829                 for (i = 0; i < LENGTH(quirkname); i++) {
2830                         if (!strncasecmp(name, quirkname[i], SWM_QUIRK_LEN)) {
2831                                 DNPRINTF(SWM_D_QUIRK, "parsequirks: %s\n", name);
2832                                 if (i == 0) {
2833                                         *quirk = 0;
2834                                         return (0);
2835                                 }
2836                                 *quirk |= 1 << (i-1);
2837                                 break;
2838                         }
2839                 }
2840                 if (i >= LENGTH(quirkname)) {
2841                         DNPRINTF(SWM_D_QUIRK,
2842                             "parsequirks: invalid quirk [%s]\n", name);
2843                         return (1);
2844                 }
2845         }
2846         return (0);
2847 }
2848 void
2849 setquirk(const char *class, const char *name, const int quirk)
2850 {
2851         int                     i, j;
2852
2853         /* find existing */
2854         for (i = 0; i < quirks_length; i++) {
2855                 if (!strcmp(quirks[i].class, class) &&
2856                     !strcmp(quirks[i].name, name)) {
2857                         if (!quirk) {
2858                                 /* found: delete */
2859                                 DNPRINTF(SWM_D_QUIRK,
2860                                     "setquirk: delete #%d %s:%s\n",
2861                                     i, quirks[i].class, quirks[i].name);
2862                                 free(quirks[i].class);
2863                                 free(quirks[i].name);
2864                                 j = quirks_length - 1;
2865                                 if (i < j)
2866                                         quirks[i] = quirks[j];
2867                                 quirks_length--;
2868                                 return;
2869                         } else {
2870                                 /* found: replace */
2871                                 DNPRINTF(SWM_D_QUIRK,
2872                                     "setquirk: replace #%d %s:%s\n",
2873                                     i, quirks[i].class, quirks[i].name);
2874                                 free(quirks[i].class);
2875                                 free(quirks[i].name);
2876                                 quirks[i].class = strdup(class);
2877                                 quirks[i].name = strdup(name);
2878                                 quirks[i].quirk = quirk;
2879                                 return;
2880                         }
2881                 }
2882         }
2883         if (!quirk) {
2884                 fprintf(stderr,
2885                     "error: setquirk: cannot find class/name combination");
2886                 return;
2887         }
2888         /* not found: add */
2889         if (quirks_size == 0 || quirks == NULL) {
2890                 quirks_size = 4;
2891                 DNPRINTF(SWM_D_QUIRK, "setquirk: init list %d\n", quirks_size);
2892                 quirks = malloc((size_t)quirks_size * sizeof(struct quirk));
2893                 if (!quirks) {
2894                         fprintf(stderr, "setquirk: malloc failed\n");
2895                         perror(" failed");
2896                         quit(NULL, NULL);
2897                 }
2898         } else if (quirks_length == quirks_size) {
2899                 quirks_size *= 2;
2900                 DNPRINTF(SWM_D_QUIRK, "setquirk: grow list %d\n", quirks_size);
2901                 quirks = realloc(quirks, (size_t)quirks_size * sizeof(struct quirk));
2902                 if (!quirks) {
2903                         fprintf(stderr, "setquirk: realloc failed\n");
2904                         perror(" failed");
2905                         quit(NULL, NULL);
2906                 }
2907         }
2908         if (quirks_length < quirks_size) {
2909                 DNPRINTF(SWM_D_QUIRK, "setquirk: add %d\n", quirks_length);
2910                 j = quirks_length++;
2911                 quirks[j].class = strdup(class);
2912                 quirks[j].name = strdup(name);
2913                 quirks[j].quirk = quirk;
2914         } else {
2915                 fprintf(stderr, "quirks array problem?\n");
2916                 if (!quirks) {
2917                         fprintf(stderr, "quirks array problem!\n");
2918                         quit(NULL, NULL);
2919                 }
2920         }
2921 }
2922 int
2923 setconfquirk(char *selector, char *value, int flags)
2924 {
2925         char                    *cp, *class, *name;
2926         int                     retval;
2927         unsigned long           quirks;
2928         if (selector == NULL)
2929                 return (0);
2930         if ((cp = strchr(selector, ':')) == NULL)
2931                 return (0);
2932         *cp = '\0';
2933         class = selector;
2934         name = cp + 1;
2935         if ((retval = parsequirks(value, &quirks)) == 0)
2936                 setquirk(class, name, quirks);
2937         return (retval);
2938 }
2939
2940 void
2941 setup_quirks(void)
2942 {
2943         setquirk("MPlayer",             "xv",           SWM_Q_FLOAT | SWM_Q_FULLSCREEN);
2944         setquirk("OpenOffice.org 2.4",  "VCLSalFrame",  SWM_Q_FLOAT);
2945         setquirk("OpenOffice.org 3.0",  "VCLSalFrame",  SWM_Q_FLOAT);
2946         setquirk("Firefox-bin",         "firefox-bin",  SWM_Q_TRANSSZ);
2947         setquirk("Firefox",             "Dialog",       SWM_Q_FLOAT);
2948         setquirk("Gimp",                "gimp",         SWM_Q_FLOAT | SWM_Q_ANYWHERE);
2949         setquirk("XTerm",               "xterm",        SWM_Q_XTERM_FONTADJ);
2950         setquirk("xine",                "Xine Window",  SWM_Q_FLOAT | SWM_Q_ANYWHERE);
2951         setquirk("Xitk",                "Xitk Combo",   SWM_Q_FLOAT | SWM_Q_ANYWHERE);
2952         setquirk("xine",                "xine Panel",   SWM_Q_FLOAT | SWM_Q_ANYWHERE);
2953         setquirk("Xitk",                "Xine Window",  SWM_Q_FLOAT | SWM_Q_ANYWHERE);
2954         setquirk("xine",                "xine Video Fullscreen Window", SWM_Q_FULLSCREEN | SWM_Q_FLOAT);
2955         setquirk("pcb",                 "pcb",          SWM_Q_FLOAT);
2956 }
2957
2958 /* conf file stuff */
2959 #define SWM_CONF_FILE   "scrotwm.conf"
2960
2961 enum    { SWM_S_BAR_DELAY, SWM_S_BAR_ENABLED, SWM_S_CLOCK_ENABLED,
2962           SWM_S_CYCLE_EMPTY, SWM_S_CYCLE_VISIBLE, SWM_S_SS_ENABLED,
2963           SWM_S_TERM_WIDTH, SWM_S_TITLE_CLASS_ENABLED, SWM_S_TITLE_NAME_ENABLED,
2964           SWM_S_BAR_FONT, SWM_S_BAR_ACTION, SWM_S_SPAWN_TERM, SWM_S_SS_APP,
2965           SWM_S_DIALOG_RATIO };
2966
2967 int
2968 setconfvalue(char *selector, char *value, int flags)
2969 {
2970         switch (flags) {
2971         case SWM_S_BAR_DELAY:
2972                 bar_delay = atoi(value);
2973                 break;
2974         case SWM_S_BAR_ENABLED:
2975                 bar_enabled = atoi(value);
2976                 break;
2977         case SWM_S_CLOCK_ENABLED:
2978                 clock_enabled = atoi(value);
2979                 break;
2980         case SWM_S_CYCLE_EMPTY:
2981                 cycle_empty = atoi(value);
2982                 break;
2983         case SWM_S_CYCLE_VISIBLE:
2984                 cycle_visible = atoi(value);
2985                 break;
2986         case SWM_S_SS_ENABLED:
2987                 ss_enabled = atoi(value);
2988                 break;
2989         case SWM_S_TERM_WIDTH:
2990                 term_width = atoi(value);
2991                 break;
2992         case SWM_S_TITLE_CLASS_ENABLED:
2993                 title_class_enabled = atoi(value);
2994                 break;
2995         case SWM_S_TITLE_NAME_ENABLED:
2996                 title_name_enabled = atoi(value);
2997                 break;
2998         case SWM_S_BAR_FONT:
2999                 free(bar_fonts[0]);
3000                 if ((bar_fonts[0] = strdup(value)) == NULL)
3001                         err(1, "setconfvalue: bar_font");
3002                 break;
3003         case SWM_S_BAR_ACTION:
3004                 free(bar_argv[0]);
3005                 if ((bar_argv[0] = strdup(value)) == NULL)
3006                         err(1, "setconfvalue: bar_action");
3007                 break;
3008         case SWM_S_SPAWN_TERM:
3009                 free(spawn_term[0]);
3010                 if ((spawn_term[0] = strdup(value)) == NULL)
3011                         err(1, "setconfvalue: spawn_term");
3012                 break;
3013         case SWM_S_SS_APP:
3014                 break;
3015         case SWM_S_DIALOG_RATIO:
3016                 dialog_ratio = atof(value);
3017                 if (dialog_ratio > 1.0 || dialog_ratio <= .3)
3018                         dialog_ratio = .6;
3019                 break;
3020         default:
3021                 return (1);
3022         }
3023         return (0);
3024 }
3025
3026 int
3027 setconfmodkey(char *selector, char *value, int flags)
3028 {
3029         if (!strncasecmp(value, "Mod1", strlen("Mod1")))
3030                 update_modkey(Mod1Mask);
3031         else if (!strncasecmp(value, "Mod2", strlen("Mod2")))
3032                 update_modkey(Mod2Mask);
3033         else if (!strncasecmp(value, "Mod3", strlen("Mod3")))
3034                 update_modkey(Mod3Mask);
3035         else if (!strncasecmp(value, "Mod4", strlen("Mod4")))
3036                 update_modkey(Mod4Mask);
3037         else
3038                 return (1);
3039         return (0);
3040 }
3041
3042 int
3043 setconfcolor(char *selector, char *value, int flags)
3044 {
3045         setscreencolor(value, ((selector == NULL)?-1:atoi(selector)), flags);
3046         return (0);
3047 }
3048
3049 int
3050 setconfregion(char *selector, char *value, int flags)
3051 {
3052         custom_region(value);
3053         return (0);
3054 }
3055
3056 /* config options */
3057 struct config_option {
3058         char                    *optname;
3059         int (*func)(char*, char*, int);
3060         int funcflags;
3061 };
3062 struct config_option configopt[] = {
3063         { "bar_enabled",                setconfvalue,   SWM_S_BAR_ENABLED },
3064         { "bar_border",                 setconfcolor,   SWM_S_COLOR_BAR_BORDER },
3065         { "bar_color",                  setconfcolor,   SWM_S_COLOR_BAR },
3066         { "bar_font_color",             setconfcolor,   SWM_S_COLOR_BAR_FONT },
3067         { "bar_font",                   setconfvalue,   SWM_S_BAR_FONT },
3068         { "bar_action",                 setconfvalue,   SWM_S_BAR_ACTION },
3069         { "bar_delay",                  setconfvalue,   SWM_S_BAR_DELAY },
3070         { "bind",                       setconfbinding, 0 },
3071         { "clock_enabled",              setconfvalue,   SWM_S_CLOCK_ENABLED },
3072         { "color_focus",                setconfcolor,   SWM_S_COLOR_FOCUS },
3073         { "color_unfocus",              setconfcolor,   SWM_S_COLOR_UNFOCUS },
3074         { "cycle_empty",                setconfvalue,   SWM_S_CYCLE_EMPTY },
3075         { "cycle_visible",              setconfvalue,   SWM_S_CYCLE_VISIBLE },
3076         { "dialog_ratio",               setconfvalue,   SWM_S_DIALOG_RATIO },
3077         { "modkey",                     setconfmodkey,  0 },
3078         { "program",                    setconfspawn,   0 },
3079         { "quirk",                      setconfquirk,   0 },
3080         { "region",                     setconfregion,  0 },
3081         { "spawn_term",                 setconfvalue,   SWM_S_SPAWN_TERM },
3082         { "screenshot_enabled",         setconfvalue,   SWM_S_SS_ENABLED },
3083         { "screenshot_app",             setconfvalue,   SWM_S_SS_APP },
3084         { "term_width",                 setconfvalue,   SWM_S_TERM_WIDTH },
3085         { "title_class_enabled",        setconfvalue,   SWM_S_TITLE_CLASS_ENABLED },
3086         { "title_name_enabled",         setconfvalue,   SWM_S_TITLE_NAME_ENABLED }
3087 };
3088
3089
3090 int
3091 conf_load(char *filename)
3092 {
3093         FILE                    *config;
3094         char                    *line, *cp, *optsub, *optval;
3095         size_t                  linelen, lineno = 0;
3096         int                     wordlen, i, optind;
3097         struct config_option    *opt;
3098
3099         DNPRINTF(SWM_D_CONF, "conf_load begin\n");
3100
3101         if (filename == NULL) {
3102                 fprintf(stderr, "conf_load: no filename\n");
3103                 return (1);
3104         }
3105         if ((config = fopen(filename, "r")) == NULL) {
3106                 warn("conf_load: fopen");
3107                 return (1);
3108         }
3109
3110         while (!feof(config)) {
3111                 if ((line = fparseln(config, &linelen, &lineno, NULL, 0))
3112                     == NULL) {
3113                         if (ferror(config))
3114                                 err(1, "%s", filename);
3115                         else
3116                                 continue;
3117                 }
3118                 cp = line;
3119                 cp += strspn(cp, " \t\n"); /* eat whitespace */
3120                 if (cp[0] == '\0') {
3121                         /* empty line */
3122                         free(line);
3123                         continue;
3124                 }
3125                 /* get config option */
3126                 wordlen = strcspn(cp, "=[ \t\n");
3127                 if (wordlen == 0) {
3128                         warnx("%s: line %zd: no option found",
3129                             filename, lineno);
3130                         return (1);
3131                 }
3132                 optind = -1;
3133                 for (i = 0; i < LENGTH(configopt); i++) {
3134                         opt = &configopt[i];
3135                         if (!strncasecmp(cp, opt->optname, wordlen) &&
3136                             strlen(opt->optname) == wordlen) {
3137                                 optind = i;
3138                                 break;
3139                         }
3140                 }
3141                 if (optind == -1) {
3142                         warnx("%s: line %zd: unknown option %.*s",
3143                             filename, lineno, wordlen, cp);
3144                         return (1);
3145                 }
3146                 cp += wordlen;
3147                 cp += strspn(cp, " \t\n"); /* eat whitespace */
3148                 /* get [selector] if any */
3149                 optsub = NULL;
3150                 if (*cp == '[') {
3151                         cp++;
3152                         wordlen = strcspn(cp, "]");
3153                         if (*cp != ']') {
3154                                 if (wordlen == 0) {
3155                                         warnx("%s: line %zd: syntax error",
3156                                             filename, lineno);
3157                                         return (1);
3158                                 }
3159                                 asprintf(&optsub, "%.*s", wordlen, cp);
3160                         }
3161                         cp += wordlen;
3162                         cp += strspn(cp, "] \t\n"); /* eat trailing */
3163                 }
3164                 cp += strspn(cp, "= \t\n"); /* eat trailing */
3165                 /* get RHS value */
3166                 optval = strdup(cp);
3167                 /* call function to deal with it all */
3168                 if (configopt[optind].func(optsub, optval,
3169                     configopt[optind].funcflags) != 0) {
3170                         fprintf(stderr, "%s line %zd: %s\n",
3171                             filename, lineno, line);
3172                         errx(1, "%s: line %zd: invalid data for %s",
3173                             filename, lineno, configopt[optind].optname);
3174                 }
3175                 free(optval);
3176                 free(optsub);
3177                 free(line);
3178         }
3179
3180         fclose(config);
3181         DNPRINTF(SWM_D_CONF, "conf_load end\n");
3182
3183         return (0);
3184 }
3185
3186 struct ws_win *
3187 manage_window(Window id)
3188 {
3189         Window                  trans = 0;
3190         struct workspace        *ws;
3191         struct ws_win           *win, *ww;
3192         int                     format, i, ws_idx, n, border_me = 0;
3193         unsigned long           nitems, bytes;
3194         Atom                    ws_idx_atom = 0, type;
3195         Atom                    *prot = NULL, *pp;
3196         unsigned char           ws_idx_str[SWM_PROPLEN], *prop = NULL;
3197         struct swm_region       *r;
3198         long                    mask;
3199         const char              *errstr;
3200         XWindowChanges          wc;
3201
3202         if ((win = find_window(id)) != NULL)
3203                         return (win);   /* already being managed */
3204
3205         if ((win = calloc(1, sizeof(struct ws_win))) == NULL)
3206                 errx(1, "calloc: failed to allocate memory for new window");
3207
3208         /* Get all the window data in one shot */
3209         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
3210         if (ws_idx_atom)
3211                 XGetWindowProperty(display, id, ws_idx_atom, 0, SWM_PROPLEN,
3212                     False, XA_STRING, &type, &format, &nitems, &bytes, &prop);
3213         XGetWindowAttributes(display, id, &win->wa);
3214         XGetWMNormalHints(display, id, &win->sh, &mask);
3215         XGetTransientForHint(display, id, &trans);
3216         if (trans) {
3217                 win->transient = trans;
3218                 DNPRINTF(SWM_D_MISC, "manage_window: win %u transient %u\n",
3219                     (unsigned)win->id, win->transient);
3220         }
3221         /* get supported protocols */
3222         if (XGetWMProtocols(display, id, &prot, &n)) {
3223                 for (i = 0, pp = prot; i < n; i++, pp++)
3224                         if (*pp == adelete)
3225                                 win->can_delete = 1;
3226                 if (prot)
3227                         XFree(prot);
3228         }
3229
3230         /*
3231          * Figure out where to put the window. If it was previously assigned to
3232          * a workspace (either by spawn() or manually moving), and isn't
3233          * transient, * put it in the same workspace
3234          */
3235         r = root_to_region(win->wa.root);
3236         if (prop && win->transient == 0) {
3237                 DNPRINTF(SWM_D_PROP, "got property _SWM_WS=%s\n", prop);
3238                 ws_idx = strtonum(prop, 0, 9, &errstr);
3239                 if (errstr) {
3240                         DNPRINTF(SWM_D_EVENT, "window idx is %s: %s",
3241                             errstr, prop);
3242                 }
3243                 ws = &r->s->ws[ws_idx];
3244         } else {
3245                 ws = r->ws;
3246                 /* this should launch transients in the same ws as parent */
3247                 if (id && trans)
3248                         if ((ww = find_window(trans)) != NULL)
3249                                 if (ws->r) {
3250                                         ws = ww->ws;
3251                                         if (ww->ws->r)
3252                                                 r = ww->ws->r;
3253                                         else
3254                                                 fprintf(stderr,
3255                                                     "fix this bug mcbride\n");
3256                                         border_me = 1;
3257                                 }
3258         }
3259
3260         /* set up the window layout */
3261         win->id = id;
3262         win->ws = ws;
3263         win->s = r->s;  /* this never changes */
3264         TAILQ_INSERT_TAIL(&ws->winlist, win, entry);
3265
3266         win->g.w = win->wa.width;
3267         win->g.h = win->wa.height;
3268         win->g.x = win->wa.x;
3269         win->g.y = win->wa.y;
3270
3271         /* Set window properties so we can remember this after reincarnation */
3272         if (ws_idx_atom && prop == NULL &&
3273             snprintf(ws_idx_str, SWM_PROPLEN, "%d", ws->idx) < SWM_PROPLEN) {
3274                 DNPRINTF(SWM_D_PROP, "setting property _SWM_WS to %s\n",
3275                     ws_idx_str);
3276                 XChangeProperty(display, win->id, ws_idx_atom, XA_STRING, 8,
3277                     PropModeReplace, ws_idx_str, SWM_PROPLEN);
3278         }
3279         XFree(prop);
3280
3281         if (XGetClassHint(display, win->id, &win->ch)) {
3282                 DNPRINTF(SWM_D_CLASS, "class: %s name: %s\n",
3283                     win->ch.res_class, win->ch.res_name);
3284                 for (i = 0; i < quirks_length; i++){
3285                         if (!strcmp(win->ch.res_class, quirks[i].class) &&
3286                             !strcmp(win->ch.res_name, quirks[i].name)) {
3287                                 DNPRINTF(SWM_D_CLASS, "found: %s name: %s\n",
3288                                     win->ch.res_class, win->ch.res_name);
3289                                 if (quirks[i].quirk & SWM_Q_FLOAT)
3290                                         win->floating = 1;
3291                                 win->quirks = quirks[i].quirk;
3292                         }
3293                 }
3294         }
3295
3296         /* alter window position if quirky */
3297         if (win->quirks & SWM_Q_ANYWHERE) {
3298                 win->manual = 1; /* don't center the quirky windows */
3299                 bzero(&wc, sizeof wc);
3300                 mask = 0;
3301                 if (win->g.y < bar_height) {
3302                         win->g.y = wc.y = bar_height;
3303                         mask |= CWY;
3304                 }
3305                 if (win->g.w + win->g.x > WIDTH(r)) {
3306                         win->g.x = wc.x = WIDTH(r) - win->g.w - 2;
3307                         mask |= CWX;
3308                 }
3309                 border_me = 1;
3310         }
3311
3312         /* Reset font sizes (the bruteforce way; no default keybinding). */
3313         if (win->quirks & SWM_Q_XTERM_FONTADJ) {
3314                 for (i = 0; i < SWM_MAX_FONT_STEPS; i++)
3315                         fake_keypress(win, XK_KP_Subtract, ShiftMask);
3316                 for (i = 0; i < SWM_MAX_FONT_STEPS; i++)
3317                         fake_keypress(win, XK_KP_Add, ShiftMask);
3318         }
3319
3320         /* border me */
3321         if (border_me) {
3322                 bzero(&wc, sizeof wc);
3323                 wc.border_width = 1;
3324                 mask = CWBorderWidth;
3325                 XConfigureWindow(display, win->id, mask, &wc);
3326         }
3327
3328         XSelectInput(display, id, EnterWindowMask | FocusChangeMask |
3329             PropertyChangeMask | StructureNotifyMask);
3330
3331         set_win_state(win, NormalState);
3332
3333         /* floaters need to be mapped if they are in the current workspace */
3334         if ((win->floating || win->transient) && (ws->idx == r->ws->idx))
3335                 XMapRaised(display, win->id);
3336
3337         return (win);
3338 }
3339
3340 void
3341 unmanage_window(struct ws_win *win)
3342 {
3343         struct workspace        *ws;
3344
3345         if (win == NULL)
3346                 return;
3347
3348         DNPRINTF(SWM_D_MISC, "unmanage_window:  %lu\n", win->id);
3349
3350         ws = win->ws;
3351         TAILQ_REMOVE(&win->ws->winlist, win, entry);
3352         set_win_state(win, WithdrawnState);
3353         if (win->ch.res_class)
3354                 XFree(win->ch.res_class);
3355         if (win->ch.res_name)
3356                 XFree(win->ch.res_name);
3357         free(win);
3358 }
3359
3360 void
3361 expose(XEvent *e)
3362 {
3363         DNPRINTF(SWM_D_EVENT, "expose: window: %lu\n", e->xexpose.window);
3364 }
3365
3366 void
3367 keypress(XEvent *e)
3368 {
3369         unsigned int            i;
3370         KeySym                  keysym;
3371         XKeyEvent               *ev = &e->xkey;
3372
3373         DNPRINTF(SWM_D_EVENT, "keypress: window: %lu\n", ev->window);
3374
3375         keysym = XKeycodeToKeysym(display, (KeyCode)ev->keycode, 0);
3376         for (i = 0; i < keys_length; i++)
3377                 if (keysym == keys[i].keysym
3378                    && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
3379                    && keyfuncs[keys[i].funcid].func) {
3380                         if (keys[i].funcid == kf_spawn_custom)
3381                                 spawn_custom(
3382                                     root_to_region(ev->root),
3383                                     &(keyfuncs[keys[i].funcid].args),
3384                                     keys[i].spawn_name
3385                                     );
3386                         else
3387                                 keyfuncs[keys[i].funcid].func(
3388                                     root_to_region(ev->root),
3389                                     &(keyfuncs[keys[i].funcid].args)
3390                                     );
3391                 }
3392 }
3393
3394 void
3395 buttonpress(XEvent *e)
3396 {
3397         XButtonPressedEvent     *ev = &e->xbutton;
3398
3399         struct ws_win           *win;
3400         int                     i, action;
3401
3402         DNPRINTF(SWM_D_EVENT, "buttonpress: window: %lu\n", ev->window);
3403
3404         action = root_click;
3405         if ((win = find_window(ev->window)) == NULL)
3406                 return;
3407         else {
3408                 focus_win(win);
3409                 action = client_click;
3410         }
3411
3412         for (i = 0; i < LENGTH(buttons); i++)
3413                 if (action == buttons[i].action && buttons[i].func &&
3414                     buttons[i].button == ev->button &&
3415                     CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
3416                         buttons[i].func(win, &buttons[i].args);
3417 }
3418
3419 void
3420 configurerequest(XEvent *e)
3421 {
3422         XConfigureRequestEvent  *ev = &e->xconfigurerequest;
3423         struct ws_win           *win;
3424         int                     new = 0;
3425         XWindowChanges          wc;
3426
3427         SWM_EV_PROLOGUE(display);
3428
3429         if ((win = find_window(ev->window)) == NULL)
3430                 new = 1;
3431
3432         if (new) {
3433                 DNPRINTF(SWM_D_EVENT, "configurerequest: new window: %lu\n",
3434                     ev->window);
3435                 bzero(&wc, sizeof wc);
3436                 wc.x = ev->x;
3437                 wc.y = ev->y;
3438                 wc.width = ev->width;
3439                 wc.height = ev->height;
3440                 wc.border_width = ev->border_width;
3441                 wc.sibling = ev->above;
3442                 wc.stack_mode = ev->detail;
3443                 XConfigureWindow(display, ev->window, ev->value_mask, &wc);
3444         } else {
3445                 DNPRINTF(SWM_D_EVENT, "configurerequest: change window: %lu\n",
3446                     ev->window);
3447                 if (win->floating) {
3448                         if (ev->value_mask & CWX)
3449                                 win->g.x = ev->x;
3450                         if (ev->value_mask & CWY)
3451                                 win->g.y = ev->y;
3452                         if (ev->value_mask & CWWidth)
3453                                 win->g.w = ev->width;
3454                         if (ev->value_mask & CWHeight)
3455                                 win->g.h = ev->height;
3456                         if (win->ws->r != NULL) {
3457                                 /* this seems to be full screen */
3458                                 if (win->g.w >= WIDTH(win->ws->r)) {
3459                                         win->g.x = 0;
3460                                         win->g.w = WIDTH(win->ws->r);
3461                                         ev->value_mask |= CWX | CWWidth;
3462                                 }
3463                                 if (win->g.h >= HEIGHT(win->ws->r)) {
3464                                         /* kill border */
3465                                         win->g.y = 0;
3466                                         win->g.h = HEIGHT(win->ws->r);
3467                                         ev->value_mask |= CWY | CWHeight;
3468                                 }
3469                         }
3470                         if ((ev->value_mask & (CWX | CWY)) &&
3471                             !(ev->value_mask & (CWWidth | CWHeight)))
3472                                 config_win(win);
3473                         XMoveResizeWindow(display, win->id,
3474                             win->g.x, win->g.y, win->g.w, win->g.h);
3475                 } else
3476                         config_win(win);
3477         }
3478
3479         SWM_EV_EPILOGUE(display);
3480 }
3481
3482 void
3483 configurenotify(XEvent *e)
3484 {
3485         struct ws_win           *win;
3486         long                    mask;
3487
3488         DNPRINTF(SWM_D_EVENT, "configurenotify: window: %lu\n",
3489             e->xconfigure.window);
3490
3491         SWM_EV_PROLOGUE(display);
3492
3493         XMapWindow(display, e->xconfigure.window);
3494         win = find_window(e->xconfigure.window);
3495         if (win) {
3496                 XGetWMNormalHints(display, win->id, &win->sh, &mask);
3497                 adjust_font(win);
3498                 XMapWindow(display, win->id);
3499                 if (font_adjusted)
3500                         stack();
3501         }
3502
3503         SWM_EV_EPILOGUE(display);
3504 }
3505
3506 void
3507 destroynotify(XEvent *e)
3508 {
3509         struct ws_win           *win, *winfocus = NULL;
3510         struct workspace        *ws;
3511         struct ws_win_list      *wl;
3512
3513         XDestroyWindowEvent     *ev = &e->xdestroywindow;
3514
3515         DNPRINTF(SWM_D_EVENT, "destroynotify: window %lu\n", ev->window);
3516
3517         SWM_EV_PROLOGUE(display);
3518
3519         if ((win = find_window(ev->window)) != NULL) {
3520                 /* find a window to focus */
3521                 ws = win->ws;
3522                 wl = &ws->winlist;
3523
3524                 /* if we are transient give focus to parent */
3525                 if (win->transient)
3526                         winfocus = find_window(win->transient);
3527                 else if (ws->focus == win) {
3528                         if (TAILQ_FIRST(wl) == win)
3529                                 winfocus = TAILQ_NEXT(win, entry);
3530                         else {
3531                                 winfocus = TAILQ_PREV(ws->focus, ws_win_list, entry);
3532                                 if (winfocus == NULL)
3533                                         winfocus = TAILQ_LAST(wl, ws_win_list);
3534                         }
3535                 }
3536
3537                 unmanage_window(win);
3538                 stack();
3539                 if (winfocus)
3540                         focus_win(winfocus);
3541         }
3542
3543         SWM_EV_EPILOGUE(display);
3544 }
3545
3546 void
3547 enternotify(XEvent *e)
3548 {
3549         XCrossingEvent          *ev = &e->xcrossing;
3550         struct ws_win           *win;
3551
3552         DNPRINTF(SWM_D_EVENT, "enternotify: window: %lu\n", ev->window);
3553
3554         if (ignore_enter) {
3555                 /* eat event(r) to prevent autofocus */
3556                 ignore_enter = 0;
3557                 return;
3558         }
3559         /*
3560          * happens when a window is created or destroyed and the border
3561          * crosses the mouse pointer
3562          */
3563         if (QLength(display))
3564                 return;
3565
3566         if ((win = find_window(ev->window)) != NULL)
3567                 focus_win(win);
3568 }
3569
3570 void
3571 focusin(XEvent *e)
3572 {
3573         DNPRINTF(SWM_D_EVENT, "focusin: window: %lu\n", e->xfocus.window);
3574 }
3575
3576 void
3577 focusout(XEvent *e)
3578 {
3579         DNPRINTF(SWM_D_EVENT, "focusout: window: %lu\n", e->xfocus.window);
3580 }
3581
3582 void
3583 mapnotify(XEvent *e)
3584 {
3585         struct ws_win           *win;
3586         XMappingEvent           *ev = &e->xmapping;
3587
3588         DNPRINTF(SWM_D_EVENT, "mapnotify: window: %lu\n", ev->window);
3589
3590         SWM_EV_PROLOGUE(display);
3591
3592         win = find_window(ev->window);
3593         if (win)
3594                 set_win_state(win, NormalState);
3595
3596         XRefreshKeyboardMapping(ev);
3597         if (ev->request == MappingKeyboard)
3598                 grabkeys();
3599
3600         SWM_EV_EPILOGUE(display);
3601 }
3602
3603 void
3604 maprequest(XEvent *e)
3605 {
3606         struct ws_win           *win;
3607         struct swm_region       *r;
3608
3609         XMapRequestEvent        *ev = &e->xmaprequest;
3610         XWindowAttributes       wa;
3611
3612         DNPRINTF(SWM_D_EVENT, "maprequest: window: %lu\n",
3613             e->xmaprequest.window);
3614
3615         SWM_EV_PROLOGUE(display);
3616
3617         if (!XGetWindowAttributes(display, ev->window, &wa))
3618                 goto done;
3619         if (wa.override_redirect)
3620                 goto done;
3621
3622         manage_window(e->xmaprequest.window);
3623
3624         stack();
3625
3626         /* make new win focused */
3627         win = find_window(ev->window);
3628         r = root_to_region(win->wa.root);
3629
3630         if (win->ws == r->ws)
3631                 focus_win(win);
3632
3633 done:
3634         SWM_EV_EPILOGUE(display);
3635 }
3636
3637 void
3638 propertynotify(XEvent *e)
3639 {
3640         struct ws_win           *win;
3641         XPropertyEvent          *ev = &e->xproperty;
3642
3643         DNPRINTF(SWM_D_EVENT, "propertynotify: window: %lu\n",
3644             ev->window);
3645
3646         if (ev->state == PropertyDelete)
3647                 return; /* ignore */
3648         win = find_window(ev->window);
3649         if (win == NULL)
3650                 return;
3651
3652         switch (ev->atom) {
3653         case XA_WM_NORMAL_HINTS:
3654 #if 0
3655                 long            mask;
3656                 XGetWMNormalHints(display, win->id, &win->sh, &mask);
3657                 fprintf(stderr, "normal hints: flag 0x%x\n", win->sh.flags);
3658                 if (win->sh.flags & PMinSize) {
3659                         win->g.w = win->sh.min_width;
3660                         win->g.h = win->sh.min_height;
3661                         fprintf(stderr, "min %d %d\n", win->g.w, win->g.h);
3662                 }
3663                 XMoveResizeWindow(display, win->id,
3664                     win->g.x, win->g.y, win->g.w, win->g.h);
3665 #endif
3666                 break;
3667         default:
3668                 break;
3669         }
3670 }
3671
3672 void
3673 unmapnotify(XEvent *e)
3674 {
3675         struct ws_win           *win, *winfocus;
3676         struct workspace        *ws;
3677
3678         DNPRINTF(SWM_D_EVENT, "unmapnotify: window: %lu\n", e->xunmap.window);
3679
3680         SWM_EV_PROLOGUE(display);
3681
3682         /* determine if we need to help unmanage this window */
3683         win = find_window(e->xunmap.window);
3684         if (win == NULL)
3685                 goto done;
3686         if (win->transient)
3687                 goto done;
3688
3689         if (getstate(e->xunmap.window) == NormalState) {
3690                 /*
3691                  * this window does not have a destroy event but but it is no
3692                  * longer visible due to the app unmapping it so unmanage it
3693                  */
3694
3695                 /* find something to focus */
3696                 ws = win->ws;
3697                 winfocus = TAILQ_PREV(win, ws_win_list, entry);
3698                 if (TAILQ_FIRST(&ws->winlist) == win)
3699                         winfocus = TAILQ_NEXT(win, entry);
3700                 else {
3701                         winfocus = TAILQ_PREV(ws->focus, ws_win_list, entry);
3702                         if (winfocus == NULL)
3703                                 winfocus = TAILQ_LAST(&ws->winlist, ws_win_list);
3704                 }
3705
3706                 /* trash window and refocus */
3707                 unmanage_window(win);
3708                 stack();
3709                 focus_win(winfocus);
3710         }
3711
3712 done:
3713         SWM_EV_EPILOGUE(display);
3714 }
3715
3716 void
3717 visibilitynotify(XEvent *e)
3718 {
3719         int                     i;
3720         struct swm_region       *r;
3721
3722         DNPRINTF(SWM_D_EVENT, "visibilitynotify: window: %lu\n",
3723             e->xvisibility.window);
3724         if (e->xvisibility.state == VisibilityUnobscured)
3725                 for (i = 0; i < ScreenCount(display); i++)
3726                         TAILQ_FOREACH(r, &screens[i].rl, entry)
3727                                 if (e->xvisibility.window == r->bar_window)
3728                                         bar_update();
3729 }
3730
3731 int
3732 xerror_start(Display *d, XErrorEvent *ee)
3733 {
3734         other_wm = 1;
3735         return (-1);
3736 }
3737
3738 int
3739 xerror(Display *d, XErrorEvent *ee)
3740 {
3741         /* fprintf(stderr, "error: %p %p\n", display, ee); */
3742         return (-1);
3743 }
3744
3745 int
3746 active_wm(void)
3747 {
3748         other_wm = 0;
3749         xerrorxlib = XSetErrorHandler(xerror_start);
3750
3751         /* this causes an error if some other window manager is running */
3752         XSelectInput(display, DefaultRootWindow(display),
3753             SubstructureRedirectMask);
3754         XSync(display, False);
3755         if (other_wm)
3756                 return (1);
3757
3758         XSetErrorHandler(xerror);
3759         XSync(display, False);
3760         return (0);
3761 }
3762
3763 void
3764 new_region(struct swm_screen *s, int x, int y, int w, int h)
3765 {
3766         struct swm_region       *r, *n;
3767         struct workspace        *ws = NULL;
3768         int                     i;
3769
3770         DNPRINTF(SWM_D_MISC, "new region: screen[%d]:%dx%d+%d+%d\n",
3771              s->idx, w, h, x, y);
3772
3773         /* remove any conflicting regions */
3774         n = TAILQ_FIRST(&s->rl);
3775         while (n) {
3776                 r = n;
3777                 n = TAILQ_NEXT(r, entry);
3778                 if (X(r) < (x + w) &&
3779                     (X(r) + WIDTH(r)) > x &&
3780                     Y(r) < (y + h) &&
3781                     (Y(r) + HEIGHT(r)) > y) {
3782                         XDestroyWindow(display, r->bar_window);
3783                         TAILQ_REMOVE(&s->rl, r, entry);
3784                         TAILQ_INSERT_TAIL(&s->orl, r, entry);
3785                 }
3786         }
3787
3788         /* search old regions for one to reuse */
3789
3790         /* size + location match */
3791         TAILQ_FOREACH(r, &s->orl, entry)
3792                 if (X(r) == x && Y(r) == y &&
3793                     HEIGHT(r) == h && WIDTH(r) == w)
3794                         break;
3795
3796         /* size match */
3797         TAILQ_FOREACH(r, &s->orl, entry)
3798                 if (HEIGHT(r) == h && WIDTH(r) == w)
3799                         break;
3800
3801         if (r != NULL) {
3802                 TAILQ_REMOVE(&s->orl, r, entry);
3803                 /* try to use old region's workspace */
3804                 if (r->ws->r == NULL)
3805                         ws = r->ws;
3806         } else
3807                 if ((r = calloc(1, sizeof(struct swm_region))) == NULL)
3808                         errx(1, "calloc: failed to allocate memory for screen");
3809
3810         /* if we don't have a workspace already, find one */
3811         if (ws == NULL) {
3812                 for (i = 0; i < SWM_WS_MAX; i++)
3813                         if (s->ws[i].r == NULL) {
3814                                 ws = &s->ws[i];
3815                                 break;
3816                         }
3817         }
3818
3819         if (ws == NULL)
3820                 errx(1, "no free workspaces\n");
3821
3822         X(r) = x;
3823         Y(r) = y;
3824         WIDTH(r) = w;
3825         HEIGHT(r) = h;
3826         r->s = s;
3827         r->ws = ws;
3828         ws->r = r;
3829         TAILQ_INSERT_TAIL(&s->rl, r, entry);
3830 }
3831
3832 void
3833 scan_xrandr(int i)
3834 {
3835 #ifdef SWM_XRR_HAS_CRTC
3836         XRRCrtcInfo             *ci;
3837         XRRScreenResources      *sr;
3838         int                     c;
3839         int                     ncrtc = 0;
3840 #endif /* SWM_XRR_HAS_CRTC */
3841         struct swm_region       *r;
3842
3843
3844         if (i >= ScreenCount(display))
3845                 errx(1, "invalid screen");
3846
3847         /* remove any old regions */
3848         while ((r = TAILQ_FIRST(&screens[i].rl)) != NULL) {
3849                 r->ws->old_r = r->ws->r = NULL;
3850                 XDestroyWindow(display, r->bar_window);
3851                 TAILQ_REMOVE(&screens[i].rl, r, entry);
3852                 TAILQ_INSERT_TAIL(&screens[i].orl, r, entry);
3853         }
3854
3855         /* map virtual screens onto physical screens */
3856 #ifdef SWM_XRR_HAS_CRTC
3857         outputs = 0;
3858         if (xrandr_support) {
3859                 sr = XRRGetScreenResources(display, screens[i].root);
3860                 if (sr == NULL)
3861                         new_region(&screens[i], 0, 0,
3862                             DisplayWidth(display, i),
3863                             DisplayHeight(display, i));
3864                 else
3865                         ncrtc = sr->ncrtc;
3866
3867                 for (c = 0, ci = NULL; c < ncrtc; c++) {
3868                         ci = XRRGetCrtcInfo(display, sr, sr->crtcs[c]);
3869                         if (ci->noutput == 0)
3870                                 continue;
3871                         outputs++;
3872
3873                         if (ci != NULL && ci->mode == None)
3874                                 new_region(&screens[i], 0, 0,
3875                                     DisplayWidth(display, i),
3876                                     DisplayHeight(display, i));
3877                         else
3878                                 new_region(&screens[i],
3879                                     ci->x, ci->y, ci->width, ci->height);
3880                 }
3881                 if (ci)
3882                         XRRFreeCrtcInfo(ci);
3883                 XRRFreeScreenResources(sr);
3884         } else
3885 #endif /* SWM_XRR_HAS_CRTC */
3886         {
3887                 new_region(&screens[i], 0, 0, DisplayWidth(display, i),
3888                     DisplayHeight(display, i));
3889         }
3890 }
3891
3892 void
3893 screenchange(XEvent *e) {
3894         XRRScreenChangeNotifyEvent      *xe = (XRRScreenChangeNotifyEvent *)e;
3895         struct swm_region               *r;
3896         int                             i;
3897
3898         DNPRINTF(SWM_D_EVENT, "screenchange: %lu\n", xe->root);
3899
3900         if (!XRRUpdateConfiguration(e))
3901                 return;
3902
3903         /* silly event doesn't include the screen index */
3904         for (i = 0; i < ScreenCount(display); i++)
3905                 if (screens[i].root == xe->root)
3906                         break;
3907         if (i >= ScreenCount(display))
3908                 errx(1, "screenchange: screen not found\n");
3909
3910         /* brute force for now, just re-enumerate the regions */
3911         scan_xrandr(i);
3912
3913         /* add bars to all regions */
3914         for (i = 0; i < ScreenCount(display); i++)
3915                 TAILQ_FOREACH(r, &screens[i].rl, entry)
3916                         bar_setup(r);
3917         stack();
3918 }
3919
3920 void
3921 setup_screens(void)
3922 {
3923         Window                  d1, d2, *wins = NULL;
3924         XWindowAttributes       wa;
3925         unsigned int            no;
3926         int                     i, j, k;
3927         int                     errorbase, major, minor;
3928         struct workspace        *ws;
3929         int                     ws_idx_atom;
3930         long                    state, manage;
3931
3932         if ((screens = calloc(ScreenCount(display),
3933              sizeof(struct swm_screen))) == NULL)
3934                 errx(1, "calloc: screens");
3935
3936         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
3937
3938         /* initial Xrandr setup */
3939         xrandr_support = XRRQueryExtension(display,
3940             &xrandr_eventbase, &errorbase);
3941         if (xrandr_support)
3942                 if (XRRQueryVersion(display, &major, &minor) && major < 1)
3943                         xrandr_support = 0;
3944
3945         /* map physical screens */
3946         for (i = 0; i < ScreenCount(display); i++) {
3947                 DNPRINTF(SWM_D_WS, "setup_screens: init screen %d\n", i);
3948                 screens[i].idx = i;
3949                 TAILQ_INIT(&screens[i].rl);
3950                 TAILQ_INIT(&screens[i].orl);
3951                 screens[i].root = RootWindow(display, i);
3952
3953                 /* set default colors */
3954                 setscreencolor("red", i + 1, SWM_S_COLOR_FOCUS);
3955                 setscreencolor("rgb:88/88/88", i + 1, SWM_S_COLOR_UNFOCUS);
3956                 setscreencolor("rgb:00/80/80", i + 1, SWM_S_COLOR_BAR_BORDER);
3957                 setscreencolor("black", i + 1, SWM_S_COLOR_BAR);
3958                 setscreencolor("rgb:a0/a0/a0", i + 1, SWM_S_COLOR_BAR_FONT);
3959
3960                 /* init all workspaces */
3961                 /* XXX these should be dynamically allocated too */
3962                 for (j = 0; j < SWM_WS_MAX; j++) {
3963                         ws = &screens[i].ws[j];
3964                         ws->idx = j;
3965                         ws->restack = 1;
3966                         ws->focus = NULL;
3967                         ws->r = NULL;
3968                         ws->old_r = NULL;
3969                         TAILQ_INIT(&ws->winlist);
3970
3971                         for (k = 0; layouts[k].l_stack != NULL; k++)
3972                                 if (layouts[k].l_config != NULL)
3973                                         layouts[k].l_config(ws,
3974                                             SWM_ARG_ID_STACKINIT);
3975                         ws->cur_layout = &layouts[0];
3976                 }
3977                 /* grab existing windows (before we build the bars)*/
3978                 if (!XQueryTree(display, screens[i].root, &d1, &d2, &wins, &no))
3979                         continue;
3980
3981                 scan_xrandr(i);
3982
3983                 if (xrandr_support)
3984                         XRRSelectInput(display, screens[i].root,
3985                             RRScreenChangeNotifyMask);
3986
3987                 /* attach windows to a region */
3988                 /* normal windows */
3989                 for (j = 0; j < no; j++) {
3990                         XGetWindowAttributes(display, wins[j], &wa);
3991                         if (!XGetWindowAttributes(display, wins[j], &wa) ||
3992                             wa.override_redirect ||
3993                             XGetTransientForHint(display, wins[j], &d1))
3994                                 continue;
3995
3996                         state = getstate(wins[j]);
3997                         manage = state == NormalState || state == IconicState;
3998                         if (wa.map_state == IsViewable || manage)
3999                                 manage_window(wins[j]);
4000                 }
4001                 /* transient windows */
4002                 for (j = 0; j < no; j++) {
4003                         if (!XGetWindowAttributes(display, wins[j], &wa))
4004                                 continue;
4005
4006                         state = getstate(wins[j]);
4007                         manage = state == NormalState || state == IconicState;
4008                         if (XGetTransientForHint(display, wins[j], &d1) &&
4009                             manage)
4010                                 manage_window(wins[j]);
4011                 }
4012                 if (wins) {
4013                         XFree(wins);
4014                         wins = NULL;
4015                 }
4016         }
4017 }
4018 void
4019 setup_globals(void)
4020 {
4021         if ((bar_fonts[0] = strdup("-*-terminus-medium-*-*-*-*-*-*-*-*-*-*-*"))
4022             == NULL)
4023                 err(1, "setup_globals: strdup");
4024         if ((bar_fonts[1] = strdup("-*-times-medium-r-*-*-*-*-*-*-*-*-*-*"))
4025             == NULL)
4026                 err(1, "setup_globals: strdup");
4027         if ((bar_fonts[2] = strdup("-misc-fixed-medium-r-*-*-*-*-*-*-*-*-*-*"))
4028             == NULL)
4029                 err(1, "setup_globals: strdup");
4030         if ((spawn_term[0] = strdup("xterm")) == NULL)
4031                 err(1, "setup_globals: strdup");
4032 }
4033
4034 void
4035 workaround(void)
4036 {
4037         int                     i;
4038         Atom                    netwmcheck, netwmname, utf8_string;
4039         Window                  root;
4040
4041         /* work around sun jdk bugs, code from wmname */
4042         netwmcheck = XInternAtom(display, "_NET_SUPPORTING_WM_CHECK", False);
4043         netwmname = XInternAtom(display, "_NET_WM_NAME", False);
4044         utf8_string = XInternAtom(display, "UTF8_STRING", False);
4045         for (i = 0; i < ScreenCount(display); i++) {
4046                 root = screens[i].root;
4047                 XChangeProperty(display, root, netwmcheck, XA_WINDOW, 32,
4048                     PropModeReplace, (unsigned char *)&root, 1);
4049                 XChangeProperty(display, root, netwmname, utf8_string, 8,
4050                     PropModeReplace, "LG3D", strlen("LG3D"));
4051         }
4052 }
4053
4054 int
4055 main(int argc, char *argv[])
4056 {
4057         struct passwd           *pwd;
4058         struct swm_region       *r, *rr;
4059         struct ws_win           *winfocus = NULL;
4060         char                    conf[PATH_MAX], *cfile = NULL;
4061         struct stat             sb;
4062         XEvent                  e;
4063         int                     xfd, i;
4064         fd_set                  rd;
4065
4066         start_argv = argv;
4067         fprintf(stderr, "Welcome to scrotwm V%s cvs tag: %s\n",
4068             SWM_VERSION, cvstag);
4069         if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
4070                 warnx("no locale support");
4071
4072         if (!(display = XOpenDisplay(0)))
4073                 errx(1, "can not open display");
4074
4075         if (active_wm())
4076                 errx(1, "other wm running");
4077
4078         /* handle some signale */
4079         installsignal(SIGINT, "INT");
4080         installsignal(SIGHUP, "HUP");
4081         installsignal(SIGQUIT, "QUIT");
4082         installsignal(SIGTERM, "TERM");
4083         installsignal(SIGCHLD, "CHLD");
4084
4085         astate = XInternAtom(display, "WM_STATE", False);
4086         aprot = XInternAtom(display, "WM_PROTOCOLS", False);
4087         adelete = XInternAtom(display, "WM_DELETE_WINDOW", False);
4088
4089         /* look for local and global conf file */
4090         pwd = getpwuid(getuid());
4091         if (pwd == NULL)
4092                 errx(1, "invalid user %d", getuid());
4093
4094         setup_screens();
4095         setup_globals();
4096         setup_keys();
4097         setup_quirks();
4098         setup_spawn();
4099
4100         snprintf(conf, sizeof conf, "%s/.%s", pwd->pw_dir, SWM_CONF_FILE);
4101         if (stat(conf, &sb) != -1) {
4102                 if (S_ISREG(sb.st_mode))
4103                         cfile = conf;
4104         } else {
4105                 /* try global conf file */
4106                 snprintf(conf, sizeof conf, "/etc/%s", SWM_CONF_FILE);
4107                 if (!stat(conf, &sb))
4108                         if (S_ISREG(sb.st_mode))
4109                                 cfile = conf;
4110         }
4111         if (cfile)
4112                 conf_load(cfile);
4113
4114         /* setup all bars */
4115         for (i = 0; i < ScreenCount(display); i++)
4116                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
4117                         if (winfocus == NULL)
4118                                 winfocus = TAILQ_FIRST(&r->ws->winlist);
4119                         bar_setup(r);
4120                 }
4121
4122         /* set some values to work around bad programs */
4123         workaround();
4124
4125         grabkeys();
4126         stack();
4127
4128         xfd = ConnectionNumber(display);
4129         while (running) {
4130                 while (XPending(display)) {
4131                         XNextEvent(display, &e);
4132                         if (running == 0)
4133                                 goto done;
4134                         if (e.type < LASTEvent) {
4135                                 dumpevent(&e);
4136                                 if (handler[e.type])
4137                                         handler[e.type](&e);
4138                                 else
4139                                         DNPRINTF(SWM_D_EVENT,
4140                                             "win: %lu unknown event: %d\n",
4141                                             e.xany.window, e.type);
4142                         } else {
4143                                 switch (e.type - xrandr_eventbase) {
4144                                 case RRScreenChangeNotify:
4145                                         screenchange(&e);
4146                                         break;
4147                                 default:
4148                                         DNPRINTF(SWM_D_EVENT,
4149                                             "win: %lu unknown xrandr event: "
4150                                             "%d\n", e.xany.window, e.type);
4151                                         break;
4152                                 }
4153                         }
4154                 }
4155
4156                 /* if we are being restarted go focus on first window */
4157                 if (winfocus) {
4158                         rr = TAILQ_FIRST(&screens[0].rl);
4159                         /* move pointer to first screen if multi screen */
4160                         if (ScreenCount(display) > 1 || outputs > 1)
4161                                 XWarpPointer(display, None, rr->s[0].root,
4162                                     0, 0, 0, 0, rr->g.x,
4163                                     rr->g.y + bar_enabled ? bar_height : 0);
4164
4165                         focus_win(winfocus);
4166                         winfocus = NULL;
4167                         continue;
4168                 }
4169
4170                 FD_ZERO(&rd);
4171                 FD_SET(xfd, &rd);
4172                 if (select(xfd + 1, &rd, NULL, NULL, NULL) == -1)
4173                         if (errno != EINTR)
4174                                 DNPRINTF(SWM_D_MISC, "select failed");
4175                 if (running == 0)
4176                         goto done;
4177                 if (bar_alarm) {
4178                         bar_alarm = 0;
4179                         bar_update();
4180                 }
4181         }
4182 done:
4183         bar_extra_stop();
4184
4185         XCloseDisplay(display);
4186
4187         return (0);
4188 }